Merge from master for release. (update)

.bake.toml

@@ -1,32 +0,0 @@
-# DESCRIPTION: mbake configuration file
-# SPDX-FileCopyrightText: 2025 Wilson Snyder
-# SPDX-License-Identifier: CC0-1.0
-
-[formatter]
-# Indentation settings
-use_tabs = true
-tab_width = 2
-
-# Spacing settings
-space_around_assignment = true
-space_before_colon = false
-space_after_colon = true
-
-# Line continuation settings
-normalize_line_continuations = true
-max_line_length = 100
-
-# PHONY settings
-group_phony_declarations = false
-phony_at_top = false
-auto_insert_phony_declarations = false
-
-# General settings
-remove_trailing_whitespace = true
-ensure_final_newline = true
-normalize_empty_lines = true
-max_consecutive_empty_lines = 2
-
-# Global settings
-debug = false
-verbose = false

.clang-format

@@ -63,8 +63,6 @@ ForEachMacros:
 SortIncludes:    true
 IncludeBlocks:   Regroup
 IncludeCategories:
-  - Regex:           '"V3Pch.*\.h"'
-    Priority:        -2 # Precompiled headers
   - Regex:           '"(config_build|verilated_config|verilatedos)\.h"'
     Priority:        -1 # Sepecials before main header
   - Regex:           '(<|")verilated.*'
@@ -114,9 +112,6 @@ SpacesBeforeTrailingComments: 2
 SpacesInAngles:  false
 SpacesInContainerLiterals: true
 SpacesInCStyleCastParentheses: false
-SpacesInLineCommentPrefix:
-  Minimum: 0
-  Maximum: -1
 SpacesInParentheses: false
 SpacesInSquareBrackets: false
 Standard:        Cpp11

.clang-tidy

@@ -1,4 +1,4 @@
-Checks:          '*,-hicpp*,-android-cloexec-fopen,-cert-dcl50-cpp,-cert-env33-c,-cert-err34-c,-cert-err58-cpp,-clang-analyzer-core.UndefinedBinaryOperatorResult,-clang-analyzer-security*,-cppcoreguidelines-avoid-do-while,-cppcoreguidelines-avoid-magic-numbers,-cppcoreguidelines-macro-usage,-cppcoreguidelines-no-malloc,-cppcoreguidelines-owning-memory,-cppcoreguidelines-pro-bounds-array-to-pointer-decay,-cppcoreguidelines-pro-bounds-array-to-pointer-decay,-cppcoreguidelines-pro-bounds-constant-array-index,-cppcoreguidelines-pro-bounds-pointer-arithmetic,-cppcoreguidelines-pro-type-const-cast,-cppcoreguidelines-pro-type-reinterpret-cast,-cppcoreguidelines-pro-type-static-cast-downcast,-cppcoreguidelines-pro-type-union-access,-cppcoreguidelines-pro-type-vararg,-cppcoreguidelines-special-member-functions,-fuchsia-*,-google-default-arguments,-google-readability-todo,-google-runtime-references,-llvm-header-guard,-llvm-include-order,-misc-string-integer-assignment,-misc-string-literal-with-embedded-nul,-modernize-use-auto,-modernize-use-trailing-return-type,-readability-braces-around-statements,-readability-container-size-empty,-readability-delete-null-pointer,-readability-else-after-return,-readability-implicit-bool-conversion,-readability-named-parameter,-readability-static-accessed-through-instance,-llvmlibc-*,-altera-*,-boost-use-ranges'
+Checks:          '*,-hicpp*,-android-cloexec-fopen,-cert-dcl50-cpp,-cert-env33-c,-cert-err34-c,-cert-err58-cpp,-clang-analyzer-core.UndefinedBinaryOperatorResult,-clang-analyzer-security*,-cppcoreguidelines-avoid-magic-numbers,-cppcoreguidelines-no-malloc,-cppcoreguidelines-owning-memory,-cppcoreguidelines-pro-bounds-array-to-pointer-decay,-cppcoreguidelines-pro-bounds-array-to-pointer-decay,-cppcoreguidelines-pro-bounds-constant-array-index,-cppcoreguidelines-pro-bounds-pointer-arithmetic,-cppcoreguidelines-pro-type-const-cast,-cppcoreguidelines-pro-type-reinterpret-cast,-cppcoreguidelines-pro-type-static-cast-downcast,-cppcoreguidelines-pro-type-union-access,-cppcoreguidelines-pro-type-vararg,-cppcoreguidelines-special-member-functions,-fuchsia-*,-google-default-arguments,-google-readability-todo,-google-runtime-references,-llvm-header-guard,-llvm-include-order,-misc-string-integer-assignment,-misc-string-literal-with-embedded-nul,-modernize-use-auto,-modernize-use-trailing-return-type,-readability-braces-around-statements,-readability-container-size-empty,-readability-delete-null-pointer,-readability-else-after-return,-readability-implicit-bool-conversion,-readability-named-parameter,-readability-static-accessed-through-instance'
 WarningsAsErrors: ''
 HeaderFilterRegex: ''
 FormatStyle:     none

.codacy.yml

@@ -1,6 +1,6 @@
 ---
 exclude_paths:
-  - ".github/**"  #
-  - "ci/build_verilator.sh"  #
-  - "include/vltstd/**"  #
-  - "nodist/fastcov.py"  #
+  - '.github/**'
+  - 'ci/build_verilator.sh'
+  - 'include/vltstd/**'
+  - 'nodist/fastcov.py'

.codecov.yml

@@ -1,20 +0,0 @@
----
-# DESCRIPTION: codecov.io config
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2020-2026 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-####################
-# Validate:
-#  curl --data-binary @.codecov.yml https://codecov.io/validate
-#
-coverage:
-  precision: 2
-  range: 75...100
-  round: down
-  status:
-    project: false
-    patch: false
-comment: false

.devcontainer/devcontainer.json

@@ -1,8 +0,0 @@
-{
-        "name": "Verilator Build Environment",
-
-        "build": {
-        "dockerfile": "../ci/docker/buildenv/Dockerfile"
-    }
-
-}

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,18 @@
+---
+name: Bug report
+about: Use this to report that something isn't working as expected, and it isn't "Unsupported." (Note our contributor agreement at https://github.com/verilator/verilator/blob/master/docs/CONTRIBUTING.rst)
+title: ''
+labels: new
+assignees: ''
+
+---
+
+Thanks for taking the time to report this.
+
+Can you attach an example that shows the issue?  (Must be openly licensed, ideally in test_regress format.)
+
+What 'verilator --version' are you using?  Did you try it with the git master version?
+
+What OS and distribution are you using?
+
+May we assist you in trying to fix this in Verilator yourself?

.github/ISSUE_TEMPLATE/config.yml

@@ -1,2 +0,0 @@
----
-blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature.md

@@ -0,0 +1,16 @@
+---
+name: Feature Request
+about: Use this to request something should be supported, or a new feature added. (Note our contributor agreement at https://github.com/verilator/verilator/blob/master/docs/CONTRIBUTING.rst)
+title: ''
+labels: new
+assignees: ''
+
+---
+
+Thanks for taking the time to report this.
+
+What would you like added/supported?
+
+Can you attach an example that runs on other simulators?  (Must be openly licensed, ideally in test_regress format.)
+
+May we assist you in trying to fix this in Verilator yourself?

.github/ISSUE_TEMPLATE/issue.md

@@ -1,40 +0,0 @@
----
-name: Bug or feature
-about: Use this to report that something isn't working as expected, or is a desired feature. (Note our contributor agreement at https://github.com/verilator/verilator/blob/master/docs/CONTRIBUTING.rst)
-title: ''
-labels: new
-assignees: ''
-
----
-
-<!--
-Thanks for taking the time to report this.
-
-Please avoid attaching screenshots that show text - you can convert images to text using e.g. https://ocr.space
-
-Please remove this block when composing, and all other blocks starting with < !--.
--->
-
-Can you please attach an example that shows the issue or missing feature?
-
-<!-- Please replace this with your answer. Examples must be openly licensed, completely self-contained so can directly run what you provide. Ideally use test_regress format, see https://veripool.org/guide/latest/contributing.html?highlight=test_regress#reporting-bugs -->
-
-What output from that test indicates it is wrong, and what is the correct or expected output?  (Or, please make test self-checking if possible.)
-
-<!-- Please replace this with your answer -->
-
-What 'verilator' command line do we use to run your example?
-
-<!-- Please replace this with your answer -->
-
-What 'verilator --version' are you using?  Did you try it with the git master version?  Did you try it with other simulators?
-
-<!-- Please replace this with your answer -->
-
-What OS and distribution are you using?
-
-<!-- Please replace this with your answer -->
-
-May we assist you in trying to fix this in Verilator yourself?
-
-<!-- Please replace this with your answer - then hit "Preview" to see the formatted result before submitting.  -->

.github/ISSUE_TEMPLATE/questions.md

@@ -7,14 +7,4 @@ assignees: ''
 
 ---
 
-<!--
-Thanks for taking the time to report this.
-
-If reporting a bug or requesting a feature please hit BACK on your browser and use a different issue templates.
-
-Please remove this block when composing, and all other blocks starting with < !--.
--->
-
 How may we help - what is your question?
-
-<!-- Please replace this with your answer - then hit "Preview" to see the formatted result before submitting. -->

.github/actions/artifact-cache/action.yml

@@ -1,165 +0,0 @@
----
-# DESCRIPTION: Github actions composite action
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: Artifact cache
-description: >-
-  Cache a directory across workflow runs using a GitHub Actions artifact instead
-  of actions/cache (useful where artifacts are preferable, e.g. no 10 GB limit
-  on public repos). The base 'key' is scoped automatically: per pull request
-  (<key>-pr-<N>) or per branch (<key>-branch-<name>), and on a PR restore falls
-  back to the target branch's cache. Call once with mode=restore before the work
-  and once with mode=save after, passing the same 'key' and 'path'.
-
-  Branch-scoped restores are provenance-checked (the artifact must come from a
-  same-repo push to that branch) - artifact names are a global, unauthenticated
-  namespace, so otherwise a fork PR could forge one.
-
-  mode=restore calls the GitHub API via 'gh', so the caller's job must grant
-  'actions: read'.
-
-inputs:
-  mode:
-    description: "'restore' or 'save'"
-    required: true
-  path:
-    description: "Directory to cache (archived on save, extracted into on restore)"
-    required: true
-  key:
-    description: "Base artifact name; scoped per PR/branch automatically"
-    required: true
-  retention-days:
-    description: "Artifact retention in days (mode=save)"
-    required: false
-    default: '3'
-  token:
-    description: "Token for the GitHub API (mode=restore); defaults to the job's GITHUB_TOKEN"
-    required: false
-    default: ''
-
-outputs:
-  key:
-    description: "Echoes the input 'key', so a later save can reuse it without repeating the expression"
-    value: ${{ inputs.key }}
-  cache-hit:
-    description: "'true' if an artifact was restored (mode=restore)"
-    value: ${{ steps.restore.outputs.cache-hit }}
-
-runs:
-  using: composite
-  steps:
-    - name: Check mode
-      shell: bash
-      env:
-        MODE: ${{ inputs.mode }}
-      run: |
-        case "$MODE" in
-          restore|save) ;;
-          *) echo "::error::artifact-cache: 'mode' must be 'restore' or 'save' (got '$MODE')"; exit 1 ;;
-        esac
-
-    # Scope the base key: <key>-pr-<N> for pull requests (with the target branch
-    # as fallback), else <key>-branch-<name>. Refs come via env, not ${{ }}
-    # interpolation, so a branch name with shell metacharacters can't inject.
-    - name: Compute artifact name
-      id: name
-      shell: bash
-      env:
-        BASE_KEY: ${{ inputs.key }}
-        EVENT_NAME: ${{ github.event_name }}
-        PR_NUMBER: ${{ github.event.pull_request.number }}
-        BASE_REF: ${{ github.event.pull_request.base.ref }}
-        REF_NAME: ${{ github.ref_name }}
-      run: |
-        set -euo pipefail
-        sanitize() { printf '%s' "$1" | tr '/' '-'; }  # artifact names cannot contain '/'
-        if [ "$EVENT_NAME" = pull_request ]; then
-          {
-            echo "primary=${BASE_KEY}-pr-${PR_NUMBER}"
-            echo "primary-branch="
-            echo "fallback=${BASE_KEY}-branch-$(sanitize "$BASE_REF")"
-            echo "fallback-branch=$BASE_REF"
-          } >> "$GITHUB_OUTPUT"
-        else
-          {
-            echo "primary=${BASE_KEY}-branch-$(sanitize "$REF_NAME")"
-            echo "primary-branch=$REF_NAME"
-            echo "fallback="
-            echo "fallback-branch="
-          } >> "$GITHUB_OUTPUT"
-        fi
-
-    - name: Restore artifact cache
-      id: restore
-      if: ${{ inputs.mode == 'restore' }}
-      continue-on-error: true  # a cold start is fine; a restore failure must not fail the caller
-      shell: bash
-      env:
-        GH_TOKEN: ${{ inputs.token || github.token }}
-        CACHE_PATH: ${{ inputs.path }}
-        PRIMARY: ${{ steps.name.outputs.primary }}
-        PRIMARY_BRANCH: ${{ steps.name.outputs.primary-branch }}
-        FALLBACK: ${{ steps.name.outputs.fallback }}
-        FALLBACK_BRANCH: ${{ steps.name.outputs.fallback-branch }}
-      run: |
-        set -euo pipefail
-        mkdir -p "$CACHE_PATH"
-        # Newest non-expired artifact named $1 (empty if none). With a non-empty
-        # $2 (branch), require provenance: a same-repo run (head_repository_id ==
-        # repository_id) whose head branch is $2, so a fork cannot forge it.
-        newest_run_id() {
-          want="$1" br="$2" gh api \
-            "/repos/$GITHUB_REPOSITORY/actions/artifacts?name=$1&per_page=100" \
-            --jq '.artifacts[]
-                  | select(.expired == false and .name == env.want)
-                  | select(env.br == ""
-                           or (.workflow_run.head_branch == env.br
-                               and .workflow_run.head_repository_id == .workflow_run.repository_id))
-                  | [.created_at, (.workflow_run.id | tostring)] | @tsv' \
-            | sort | tail -n1 | cut -f2
-        }
-        restore() {  # $1=name $2=branch(empty ok); returns 0 on a successful restore
-          local name="$1" br="$2" rid tarball
-          [ -n "$name" ] || return 1
-          rid="$(newest_run_id "$name" "$br")" || return 1
-          [ -n "$rid" ] || return 1
-          echo "Restoring '$CACHE_PATH' from artifact '$name' (run $rid)"
-          gh run download "$rid" -R "$GITHUB_REPOSITORY" --name "$name" --dir "$RUNNER_TEMP/artifact-cache-dl" || return 1
-          # Each artifact holds a single tarball; match by extension so the inner
-          # filename is not part of the contract.
-          tarball="$(find "$RUNNER_TEMP/artifact-cache-dl" -name '*.tar.zst' -print -quit)"
-          [ -n "$tarball" ] || return 1
-          tar -I zstd -x -f "$tarball" -C "$CACHE_PATH"
-        }
-        if restore "$PRIMARY" "$PRIMARY_BRANCH"; then
-          echo "Restored from primary key"
-          echo "cache-hit=true" >> "$GITHUB_OUTPUT"
-        elif restore "$FALLBACK" "$FALLBACK_BRANCH"; then
-          echo "Restored from fallback key"
-          echo "cache-hit=true" >> "$GITHUB_OUTPUT"
-        else
-          echo "No matching artifact found; starting cold"
-          echo "cache-hit=false" >> "$GITHUB_OUTPUT"
-        fi
-
-    - name: Pack artifact cache
-      id: pack
-      if: ${{ inputs.mode == 'save' }}
-      shell: bash
-      env:
-        CACHE_PATH: ${{ inputs.path }}
-      run: |
-        set -euo pipefail
-        packdir="$(mktemp -d)"  # unique dir so concurrent saves cannot collide
-        tar -I 'zstd -T0' -cf "$packdir/cache.tar.zst" -C "$CACHE_PATH" .
-        echo "tarball=$packdir/cache.tar.zst" >> "$GITHUB_OUTPUT"
-
-    - name: Upload artifact cache
-      if: ${{ inputs.mode == 'save' }}
-      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-      with:
-        name: ${{ steps.name.outputs.primary }}
-        path: ${{ steps.pack.outputs.tarball }}
-        retention-days: ${{ inputs.retention-days }}
-        overwrite: true
-        compression-level: 0  # tarball is already zstd-compressed

.github/actions/install-deps/action.yml

@@ -1,109 +0,0 @@
----
-# DESCRIPTION: Github actions composite action
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: Install dependencies
-description: >-
-  Install the dependencies of a CI stage with 'ci/ci-install.bash', caching the
-  '.deb' files apt downloads for that stage, so a package is fetched from the
-  network at most once per runner image. On hosts that do not use apt this is
-  just the install, there is nothing to cache.
-
-inputs:
-  repo:
-    description: "Verilator checkout holding the ci/ scripts"
-    required: false
-    default: repo
-  stage:
-    description: "CI stage to install the dependencies of, e.g. 'build'"
-    required: true
-
-runs:
-  using: composite
-  steps:
-    - name: Compute apt cache key
-      id: cachekey
-      if: ${{ runner.os == 'Linux' }}
-      shell: bash
-      working-directory: ${{ inputs.repo }}
-      env:
-        STAGE: ${{ inputs.stage }}
-      run: |
-        source ci/ci-common.bash
-        host="${DISTRO_ID:-$HOST_OS}${DISTRO_VERSION:+-$DISTRO_VERSION}"
-        echo "key=apt-${host}-${STAGE}" >> "$GITHUB_OUTPUT"
-
-    - name: Restore apt downloads
-      if: ${{ runner.os == 'Linux' }}
-      uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9  # v5
-      with:
-        path: ${{ runner.temp }}/apt-cache
-        key: ${{ steps.cachekey.outputs.key }}
-        restore-keys: |
-          ${{ steps.cachekey.outputs.key }}-
-
-    - name: Seed apt archive from cache
-      if: ${{ runner.os == 'Linux' }}
-      shell: bash
-      env:
-        APT_CACHE_DIR: ${{ runner.temp }}/apt-cache
-      run: |
-        set -euo pipefail
-        # Ask apt where it keeps its downloads, rather than assume
-        eval "$(apt-config shell ARCHIVES Dir::Cache::archives/d)"
-        ARCHIVES=${ARCHIVES%/}  # '/d' yields a trailing slash
-        # Wipe the archive first, so that whatever the runner image left behind is not stored
-        sudo apt-get -o DPkg::Lock::Timeout=60 clean
-        # The directory is absent when nothing was restored, e.g. on a cold start
-        if [ -d "$APT_CACHE_DIR" ] &&
-          [ -n "$(find "$APT_CACHE_DIR" -maxdepth 1 -name '*.deb' -print -quit)" ]; then
-          sudo cp "$APT_CACHE_DIR"/*.deb "$ARCHIVES"
-        fi
-
-    - name: Install dependencies
-      shell: bash
-      working-directory: ${{ inputs.repo }}
-      env:
-        STAGE: ${{ inputs.stage }}
-      run: ./ci/ci-install.bash "$STAGE"
-
-    - name: Collect apt downloads
-      id: collect
-      if: ${{ runner.os == 'Linux' }}
-      shell: bash
-      env:
-        APT_CACHE_DIR: ${{ runner.temp }}/apt-cache
-      run: |
-        set -euo pipefail
-        # Ask apt where it keeps its downloads, rather than assume
-        eval "$(apt-config shell ARCHIVES Dir::Cache::archives/d)"
-        ARCHIVES=${ARCHIVES%/}  # '/d' yields a trailing slash
-        # Sorted names of the '.deb' files in a directory, empty if it has none
-        list-debs() {
-          [ -d "$1" ] || return 0
-          find "$1" -maxdepth 1 -name '*.deb' -printf '%f\n' | sort
-        }
-        # Superseded downloads can no longer be fetched, so drop them
-        sudo apt-get -o DPkg::Lock::Timeout=60 autoclean
-        downloaded=$(list-debs "$ARCHIVES")
-        if [ -z "$downloaded" ]; then
-          echo "Apt kept no '.deb' files, nothing to cache"
-          exit 0
-        fi
-        if [ "$downloaded" = "$(list-debs "$APT_CACHE_DIR")" ]; then
-          echo "Downloads unchanged, keeping the restored cache entry"
-          exit 0
-        fi
-        # Mirror the archive, rather than add to it, so that the cache cannot
-        # grow without bound as package versions churn
-        mkdir -p "$APT_CACHE_DIR"
-        rm -f "$APT_CACHE_DIR"/*.deb
-        sudo cp "$ARCHIVES"/*.deb "$APT_CACHE_DIR"
-        echo "changed=true" >> "$GITHUB_OUTPUT"
-
-    - name: Save apt downloads
-      if: ${{ steps.collect.outputs.changed == 'true' }}
-      uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9  # v5
-      with:
-        path: ${{ runner.temp }}/apt-cache
-        key: ${{ steps.cachekey.outputs.key }}-${{ github.run_id }}

.github/actions/setup-venv/action.yml

@@ -1,56 +0,0 @@
----
-# DESCRIPTION: Github actions composite action
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: Set up Python venv
-description: >-
-  Restore, create, and optionally save the make-managed Python venv in a GitHub
-  Actions cache. The cache key combines the venv path (venvs are not
-  relocatable), the host OS and version, the Python major.minor version, and
-  the python-dev-requirements.txt hash, so any of those changing invalidates
-  it. Requires the already-configured Verilator tree to be present in 'repo'.
-
-inputs:
-  repo:
-    description: "Verilator checkout holding the Makefile and .venv"
-    required: false
-    default: repo
-  save:
-    description: "Save the cache on a miss (set true only on trusted branches)"
-    required: false
-    default: 'false'
-
-runs:
-  using: composite
-  steps:
-    - name: Compute Python venv cache key
-      id: cachekey
-      shell: bash
-      working-directory: ${{ inputs.repo }}
-      run: |
-        source ci/ci-common.bash
-        host="${DISTRO_ID:-$HOST_OS}${DISTRO_VERSION:+-$DISTRO_VERSION}"
-        pyver="$(python3 -c 'import sys; print("%d.%d" % sys.version_info[:2])')"
-        reqs="$(sha256sum python-dev-requirements.txt | cut -d' ' -f1)"
-        venv="${PWD#/}/.venv"  # absolute venv path (leading '/' trimmed)
-        echo "key=venv-${host}-py${pyver}-${reqs}-${venv//\//-}" >> "$GITHUB_OUTPUT"
-
-    - name: Restore Python venv
-      id: venv
-      uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9  # v5
-      with:
-        path: ${{ inputs.repo }}/.venv
-        key: ${{ steps.cachekey.outputs.key }}
-
-    - name: Create Python venv
-      if: ${{ steps.venv.outputs.cache-hit != 'true' }}
-      shell: bash
-      working-directory: ${{ inputs.repo }}
-      run: make venv
-
-    - name: Save Python venv
-      if: ${{ inputs.save == 'true' && steps.venv.outputs.cache-hit != 'true' }}
-      uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9  # v5
-      with:
-        path: ${{ inputs.repo }}/.venv
-        key: ${{ steps.venv.outputs.cache-primary-key }}

.github/actions/upload-pr-notification/action.yml

@@ -1,74 +0,0 @@
----
-# DESCRIPTION: Github actions composite action
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: Upload PR notification
-description: >-
-  Upload the 'pr-notification' artifact, holding a comment for 'pages.yml' to
-  post on a pull request. The given directory must hold the content of the
-  comment in 'body.txt', and its single line summary in 'hist.txt'.
-
-inputs:
-  path:
-    description: "Directory holding the notification contents"
-    required: true
-  key:
-    description: "Unique key for combining comments"
-    required: true
-
-runs:
-  using: composite
-  steps:
-    - name: Validate
-      shell: bash
-      env:
-        NOTIFICATION_DIR: ${{ inputs.path }}
-        EVENT_NAME: ${{ github.event_name }}
-      run: |
-        # The notification is posted on the pull request of the triggering event
-        if [ "${EVENT_NAME}" != "pull_request" ]; then
-          echo "This action can only be used on a 'pull_request' run, but event is '${EVENT_NAME}'" >&2
-          exit 1
-        fi
-        # The content of the comment, and its single line summary
-        for f in body.txt hist.txt; do
-          if [ ! -f "${NOTIFICATION_DIR}/${f}" ]; then
-            echo "No '${f}' in '${NOTIFICATION_DIR}'" >&2
-            exit 1
-          fi
-        done
-        # Nothing else, so the artifact holds only what this action puts in it
-        EXTRA=$(find "${NOTIFICATION_DIR}" -mindepth 1 -not -name body.txt -not -name hist.txt)
-        if [ -n "${EXTRA}" ]; then
-          echo "Unexpected content in '${NOTIFICATION_DIR}':" >&2
-          echo "${EXTRA}" >&2
-          exit 1
-        fi
-        # 'ci-pages-notify.bash' stashes 'hist.txt' in an HTML comment, and later
-        # shows it in the history of the notifications superseding this one, so
-        # it must be a single line, and must neither open nor close an HTML comment
-        if [ $(wc -l < "${NOTIFICATION_DIR}/hist.txt") -ne 1 ]; then
-          echo "'hist.txt' must hold exactly one line" >&2
-          exit 1
-        fi
-        if grep -q -e '<!--' -e '-->' "${NOTIFICATION_DIR}/hist.txt"; then
-          echo "'hist.txt' must not contain '<!--' or '-->'" >&2
-          exit 1
-        fi
-
-    - name: Add metadata
-      shell: bash
-      env:
-        NOTIFICATION_DIR: ${{ inputs.path }}
-        NOTIFICATION_KEY: ${{ inputs.key }}
-        PR_NUMBER: ${{ github.event.pull_request.number }}
-      run: |
-        echo "${NOTIFICATION_KEY}" > "${NOTIFICATION_DIR}/key.txt"
-        echo "${PR_NUMBER}" > "${NOTIFICATION_DIR}/pr-number.txt"
-        ls -lsha "${NOTIFICATION_DIR}"
-
-    - name: Upload notification
-      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-      with:
-        path: ${{ inputs.path }}
-        name: pr-notification

.github/dependabot.yml

@@ -1,11 +0,0 @@
----
-# See https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
-version: 2
-updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "weekly"
-    groups:
-      everything:
-        patterns: ["*"]

.github/workflows/build-test.yml

@@ -1,170 +0,0 @@
----
-# DESCRIPTION: Github actions config
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: Regressions
-
-on:
-  push:
-    branches-ignore:
-      - 'dependabot/**'  # Avoid duplicates: only run the PR, not the push
-  pull_request:
-  workflow_dispatch:
-  schedule:
-    - cron: '0 0 * * 0'  # weekly
-
-permissions:
-  contents: read
-  actions: read
-
-defaults:
-  run:
-    working-directory: repo
-
-concurrency:
-  # At most 1 job per branch. Auto cancel on pull requests and on all forks
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: ${{ github.event_name == 'pull_request' || github.repository != 'verilator/verilator' }}
-
-jobs:
-
-  build-2604-gcc:
-    name: Build | 26.04 | gcc
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: gcc
-      runs-on: ubuntu-26.04
-      sha: ${{ github.sha }}
-
-  build-2604-clang:
-    name: Build | 26.04 | clang
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: clang
-      dev-asan: true  # Build (and run) with address sanitizer
-      runs-on: ubuntu-26.04
-      sha: ${{ github.sha }}
-
-  build-2404-gcc:
-    name: Build | 24.04 | gcc
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: gcc
-      runs-on: ubuntu-24.04
-      sha: ${{ github.sha }}
-
-  build-2404-clang:
-    name: Build | 24.04 | clang
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: clang
-      runs-on: ubuntu-24.04
-      sha: ${{ github.sha }}
-
-  build-2204-gcc:
-    name: Build | 22.04 | gcc
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: gcc
-      runs-on: ubuntu-22.04
-      sha: ${{ github.sha }}
-
-  build-macos-15-clang:
-    name: Build | macos-15 | clang
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: clang
-      runs-on: macos-15
-      sha: ${{ github.sha }}
-
-  build-windows:
-    name: Build | windows-2025-vs2026 | msvc
-    runs-on: windows-2025-vs2026
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-        with:
-          path: repo
-      - name: Cache win_flex_bison
-        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9  # v5
-        with:
-          path: ${{ github.workspace }}/win_flex_bison
-          key: win_flex_bison
-      - name: compile
-        run: ./ci/ci-win-compile.ps1
-      - name: test build
-        run: ./ci/ci-win-test.ps1
-
-  test-2604-gcc:
-    name: Test | 26.04 | gcc | ${{ matrix.suite }}
-    needs: build-2604-gcc
-    uses: ./.github/workflows/reusable-test.yml
-    with:
-      archive: ${{ needs.build-2604-gcc.outputs.archive }}
-      cc: gcc
-      runs-on: ubuntu-26.04
-      suite: ${{ matrix.suite }}
-    strategy:
-      fail-fast: false
-      matrix:
-        suite: [dist-vlt-0, dist-vlt-1, dist-vlt-2, dist-vlt-3, vltmt-0, vltmt-1, vltmt-2]
-
-  test-2604-clang:
-    name: Test | 26.04 | clang | ${{ matrix.suite }}
-    needs: build-2604-clang
-    uses: ./.github/workflows/reusable-test.yml
-    with:
-      archive: ${{ needs.build-2604-clang.outputs.archive }}
-      cc: clang
-      runs-on: ubuntu-26.04
-      suite: ${{ matrix.suite }}
-    strategy:
-      fail-fast: false
-      matrix:
-        suite: [dist-vlt-0, dist-vlt-1, dist-vlt-2, dist-vlt-3, vltmt-0, vltmt-1, vltmt-2]
-
-  test-2404-gcc:
-    name: Test | 24.04 | gcc | ${{ matrix.suite }}
-    needs: build-2404-gcc
-    uses: ./.github/workflows/reusable-test.yml
-    with:
-      archive: ${{ needs.build-2404-gcc.outputs.archive }}
-      cc: gcc
-      runs-on: ubuntu-24.04
-      suite: ${{ matrix.suite }}
-    strategy:
-      fail-fast: false
-      matrix:
-        suite: [dist-vlt-0, dist-vlt-1, dist-vlt-2, dist-vlt-3, vltmt-0, vltmt-1, vltmt-2]
-
-  test-2404-clang:
-    name: Test | 24.04 | clang | ${{ matrix.suite }}
-    needs: build-2404-clang
-    uses: ./.github/workflows/reusable-test.yml
-    with:
-      archive: ${{ needs.build-2404-clang.outputs.archive }}
-      cc: clang
-      reloc: true  # Test with relocated installation
-      runs-on: ubuntu-24.04
-      suite: ${{ matrix.suite }}
-    strategy:
-      fail-fast: false
-      matrix:
-        suite: [dist-vlt-0, dist-vlt-1, dist-vlt-2, dist-vlt-3, vltmt-0, vltmt-1, vltmt-2]
-
-  test-2204-gcc:
-    name: Test | 22.04 | gcc | ${{ matrix.suite }}
-    needs: build-2204-gcc
-    uses: ./.github/workflows/reusable-test.yml
-    with:
-      archive: ${{ needs.build-2204-gcc.outputs.archive }}
-      cc: gcc
-      runs-on: ubuntu-22.04
-      suite: ${{ matrix.suite }}
-    strategy:
-      fail-fast: false
-      matrix:
-        suite: [dist-vlt-0, dist-vlt-1, dist-vlt-2, dist-vlt-3, vltmt-0, vltmt-1, vltmt-2]
-
-  lint-py:
-    name: Lint Python
-    uses: ./.github/workflows/reusable-lint-py.yml

.github/workflows/build.yml

@@ -0,0 +1,164 @@
+# DESCRIPTION: Github actions config
+# This name is key to badges in README.rst, so we use the name build
+# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+name: build
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+  schedule:
+  - cron: '0 0 * * 0' # weekly
+
+env:
+  CI_OS_NAME: linux
+  CI_COMMIT: ${{ github.sha }}
+  CCACHE_COMPRESS: 1
+  CCACHE_DIR: ${{ github.workspace }}/.ccache
+  CCACHE_LIMIT_MULTIPLE: 0.95
+
+defaults:
+  run:
+    shell: bash
+    working-directory: repo
+
+jobs:
+
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-22.04, ubuntu-20.04]
+        compiler:
+          - { cc: clang, cxx: clang++ }
+          - { cc: gcc,   cxx: g++     }
+        m32: [0, 1]
+        exclude:
+          # Build pull requests only with ubuntu-22.04 and without m32
+          # - os:  ${{ github.event_name == 'pull_request' && 'ubuntu-18.04' || 'do-not-exclude' }}
+          # - os:  ${{ github.event_name == 'pull_request' && 'ubuntu-20.04' || 'do-not-exclude' }}
+          # - m32: ${{ github.event_name == 'pull_request' && 1              || 'do-not-exclude' }}
+          # Build -m32 only on ubuntu-22.04 clang++
+          - {os: ubuntu-18.04, m32: 1}
+          - {os: ubuntu-20.04, m32: 1}
+          - compiler: { cc: gcc, cxx: g++ }
+            m32: 1
+        include:
+          # Build GCC 10 on ubuntu-20.04
+          - os: ubuntu-20.04
+            compiler: { cc: gcc-10, cxx: g++-10 }
+            m32: 0
+    runs-on: ${{ matrix.os }}
+    name: Build | ${{ matrix.os }} | ${{ matrix.compiler.cc }} ${{ matrix.m32 && '| -m32' || '' }}
+    env:
+      CI_BUILD_STAGE_NAME: build
+      CI_RUNS_ON: ${{ matrix.os }}
+      CI_M32: ${{ matrix.m32 }}
+      CC: ${{ matrix.compiler.cc }}
+      CXX: ${{ matrix.compiler.cxx }}
+      CACHE_BASE_KEY: build-${{ matrix.os }}-${{ matrix.compiler.cc }}-m32=${{ matrix.m32 }}
+      CCACHE_MAXSIZE: 250M # Per build matrix entry (2000M in total)
+      VERILATOR_ARCHIVE: verilator-${{ github.sha }}-${{ matrix.os }}-${{ matrix.compiler.cc }}${{ matrix.m32 && '-m32' || '' }}.tar.gz
+    steps:
+
+    - name: Checkout
+      uses: actions/checkout@v3
+      with:
+        path: repo
+
+    - name: Cache $CCACHE_DIR
+      uses: actions/cache@v3
+      env:
+        CACHE_KEY: ${{ env.CACHE_BASE_KEY }}-ccache
+      with:
+        path: ${{ env.CCACHE_DIR }}
+        key: ${{ env.CACHE_KEY }}-${{ github.sha }}
+        restore-keys: |
+          ${{ env.CACHE_KEY }}-
+
+    - name: Install packages for build
+      run: ./ci/ci-install.bash
+
+    - name: Build
+      run: ./ci/ci-script.bash
+
+    - name: Tar up repository
+      working-directory: ${{ github.workspace }}
+      run: tar --posix -c -z -f ${{ env.VERILATOR_ARCHIVE }} repo
+
+    - name: Upload tar archive
+      uses: actions/upload-artifact@v3
+      with:
+        path: ${{ github.workspace }}/${{ env.VERILATOR_ARCHIVE }}
+        name: ${{ env.VERILATOR_ARCHIVE }}
+
+
+  test:
+    needs: build
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-22.04, ubuntu-20.04]
+        compiler:
+          - { cc: clang, cxx: clang++ }
+          - { cc: gcc,   cxx: g++     }
+        m32: [0, 1]
+        suite: [dist-vlt-0, dist-vlt-1, dist-vlt-2, vltmt-0, vltmt-1]
+        exclude:
+          # Build pull requests only with ubuntu-22.04 and without m32
+          # - os:  ${{ github.event_name == 'pull_request' && 'ubuntu-18.04' || 'do-not-exclude' }}
+          # - os:  ${{ github.event_name == 'pull_request' && 'ubuntu-20.04' || 'do-not-exclude' }}
+          # - m32: ${{ github.event_name == 'pull_request' && 1              || 'do-not-exclude' }}
+          # Build -m32 only on ubuntu-22.04
+          - {os: ubuntu-18.04, m32: 1}
+          - {os: ubuntu-20.04, m32: 1}
+          - compiler: { cc: gcc, cxx: g++ }
+            m32: 1
+        include:
+          # Test with GCC 10 on ubuntu-20.04 without m32
+          - {os: ubuntu-20.04, compiler: { cc: gcc-10, cxx: g++-10 }, m32: 0, suite: dist-vlt-0}
+          - {os: ubuntu-20.04, compiler: { cc: gcc-10, cxx: g++-10 }, m32: 0, suite: dist-vlt-1}
+          - {os: ubuntu-20.04, compiler: { cc: gcc-10, cxx: g++-10 }, m32: 0, suite: dist-vlt-2}
+          - {os: ubuntu-20.04, compiler: { cc: gcc-10, cxx: g++-10 }, m32: 0, suite: vltmt-0}
+          - {os: ubuntu-20.04, compiler: { cc: gcc-10, cxx: g++-10 }, m32: 0, suite: vltmt-1}
+    runs-on: ${{ matrix.os }}
+    name: Test | ${{ matrix.os }} | ${{ matrix.compiler.cc }} | ${{ matrix.suite }} ${{ matrix.m32 && '| -m32' || '' }}
+    env:
+      CI_BUILD_STAGE_NAME: test
+      CI_RUNS_ON: ${{ matrix.os }}
+      CI_M32: ${{ matrix.m32 }}
+      CC: ${{ matrix.compiler.cc }}
+      CXX: ${{ matrix.compiler.cxx }}
+      CACHE_BASE_KEY: test-${{ matrix.os }}-${{ matrix.compiler.cc }}-m32=${{ matrix.m32 }}-${{ matrix.suite }}
+      CCACHE_MAXSIZE: 64M # Per build matrix entry (2160M in total)
+      VERILATOR_ARCHIVE: verilator-${{ github.sha }}-${{ matrix.os }}-${{ matrix.compiler.cc }}${{ matrix.m32 && '-m32' || '' }}.tar.gz
+    steps:
+
+    - name: Download tar archive
+      uses: actions/download-artifact@v3
+      with:
+        name: ${{ env.VERILATOR_ARCHIVE }}
+        path: ${{ github.workspace }}
+
+    - name: Unpack tar archive
+      working-directory: ${{ github.workspace }}
+      run: tar -x -z -f ${{ env.VERILATOR_ARCHIVE }}
+
+    - name: Cache $CCACHE_DIR
+      uses: actions/cache@v3
+      env:
+        CACHE_KEY: ${{ env.CACHE_BASE_KEY }}-ccache
+      with:
+        path: ${{ env.CCACHE_DIR }}
+        key: ${{ env.CACHE_KEY }}-${{ github.sha }}
+        restore-keys: |
+          ${{ env.CACHE_KEY }}-
+
+    - name: Install test dependencies
+      run: ./ci/ci-install.bash
+
+    - name: Test
+      env:
+        TESTS: ${{ matrix.suite }}
+      run: ./ci/ci-script.bash

.github/workflows/contributor.yml

@@ -1,20 +1,17 @@
----
 # DESCRIPTION: Github actions config
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-#
+
 name: Contributor Agreement
+
 on:
   push:
-    branches-ignore:
-      - 'dependabot/**'  # Avoid duplicates: only run the PR, not the push
   pull_request:
   workflow_dispatch:
-permissions:
-  contents: read
+
 jobs:
   Test:
     name: "'docs/CONTRIBUTORS' was signed"
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-      - run: test_regress/t/t_dist_contributors.py
+    - uses: actions/checkout@v3
+    - run: test_regress/t/t_dist_contributors.pl

.github/workflows/coverage.yml

@@ -1,189 +1,99 @@
----
 # DESCRIPTION: Github actions config
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
-name: Code coverage
+name: coverage
 
 on:
   workflow_dispatch:
   schedule:
-    - cron: '0 0 * * 0'  # weekly
-  pull_request:
-    types: [opened, synchronize, reopened, labeled, unlabeled]
+  - cron: '0 0 * * 0' # weekly
 
-permissions:
-  contents: read
-  actions: read
+env:
+  CI_OS_NAME: linux
+  CI_COMMIT: ${{ github.sha }}
+  CI_M32: 0
+  COVERAGE: 1
+  VERILATOR_ARCHIVE: verilator-coverage-${{ github.sha }}.tar.gz
 
 defaults:
   run:
     shell: bash
-
-concurrency:
-  # At most 1 job per branch. Auto cancel all but scheduled jobs
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: ${{ github.event_name != 'schedule' }}
+    working-directory: repo
 
 jobs:
 
-  build:
-    name: Build
-    # Only run scheduled jobs if explicitly enabled for that repo (e.g.: not on forks)
-    # Only run pull request jobs if labelled as needing an coverage run
-    # Always run workflow dispatch jobs
-    if: |
-      (github.event_name == 'schedule'
-        && vars.ENABLE_SCHEDULED_JOBS == 'true') ||
-      (github.event_name == 'pull_request'
-        && contains(github.event.pull_request.labels.*.name, 'pr: dev-coverage')) ||
-      (github.event_name == 'workflow_dispatch')
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: gcc
-      dev-gcov: true
-      runs-on: ubuntu-24.04
-      # For pull requests, build the head of the pull request branch, not the
-      # merge commit, otherwise patch coverage would include the changes
-      # between the root of the pull request and the target branch
-      sha: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
 
-  test:
-    name: Test | ${{ matrix.test }}${{ matrix.num }}
-    needs: build
-    uses: ./.github/workflows/reusable-test.yml
-    with:
-      archive: ${{ needs.build.outputs.archive }}
-      cc: gcc
-      dev-gcov: true
-      runs-on: ubuntu-24.04
-      suite: ${{ matrix.test }}${{ matrix.num }}
+  Build:
+    runs-on: ubuntu-22.04
+    env:
+      CI_BUILD_STAGE_NAME: build
+      CI_RUNS_ON: ubuntu-22.04
+    steps:
+
+    - name: Checkout
+      uses: actions/checkout@v3
+      with:
+        path: repo
+
+    - name: Install packages for build
+      run: ./ci/ci-install.bash
+
+    - name: Build
+      run: ./ci/ci-script.bash
+
+    - name: Tar up repository
+      working-directory: ${{ github.workspace }}
+      run: tar --posix -c -z -f ${{ env.VERILATOR_ARCHIVE }} repo
+
+    - name: Upload tar archive
+      uses: actions/upload-artifact@v3
+      with:
+        path: ${{ github.workspace }}/${{ env.VERILATOR_ARCHIVE }}
+        name: ${{ env.VERILATOR_ARCHIVE }}
+
+
+  Test:
+    needs: Build
     strategy:
       fail-fast: false
       matrix:
-        test: [coverage-vlt-, coverage-vltmt-]
-        num: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+        test:
+        - vlt-
+        - vltmt-
+        num:
+        - 0
+        - 1
+        - 2
+        - 3
+        - 4
+        - 5
+        - 6
+        - 7
+        - 8
+        - 9
         include:
-          - {test: coverage-dist, num: ''}
-
-  publish-codecov:
-    name: Publish results to codecov.io
-    needs: test
-    if: ${{ contains(needs.*.result, 'success') && !cancelled() }}
-    runs-on: ubuntu-24.04
+        - { test: dist, num: '' }
+    runs-on: ubuntu-22.04
+    name: test-${{ matrix.test }}${{ matrix.num }}
+    env:
+      CI_BUILD_STAGE_NAME: test
+      CI_RUNS_ON: ubuntu-22.04
     steps:
-      - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
 
-      - name: Download code coverage data
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8
-        with:
-          pattern: code-coverage-*
-          path: obj_coverage
-          merge-multiple: true
+    - name: Download tar archive
+      uses: actions/download-artifact@v3
+      with:
+        name: ${{ env.VERILATOR_ARCHIVE }}
+        path: ${{ github.workspace }}
 
-      - name: List files
-        id: list-files
-        run: |
-          ls -lsha obj_coverage
-          find obj_coverage -type f | paste -sd, | sed "s/^/files=/" >> "$GITHUB_OUTPUT"
+    - name: Unpack tar archive
+      working-directory: ${{ github.workspace }}
+      run: tar -x -z -f ${{ env.VERILATOR_ARCHIVE }}
 
-      - name: Upload to codecov.io
-        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f  # v7
-        with:
-          disable_file_fixes: true
-          disable_search: true
-          fail_ci_if_error: true
-          files: ${{ steps.list-files.outputs.files }}
-          plugins: noop
-          token: ${{ secrets.CODECOV_TOKEN }}
-          verbose: true
+    - name: Install test dependencies
+      run: ./ci/ci-install.bash
 
-  prepare-report:
-    name: Prepare HTML report
-    needs: [build, test]
-    if: ${{ contains(needs.*.result, 'success') && !cancelled() }}
-    runs-on: ubuntu-24.04
-    steps:
-      - name: Download repository archive
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8
-        with:
-          name: ${{ needs.build.outputs.archive }}
-          path: ${{ github.workspace }}
-
-      - name: Unpack repository archive
-        run: |
-          tar --zstd -x -f ${{ needs.build.outputs.archive }}
-          ls -lsha
-
-      - name: Install dependencies
-        uses: ./repo/.github/actions/install-deps
-        with:
-          stage: coverage
-
-      - name: Download code coverage data
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8
-        with:
-          pattern: code-coverage-*
-          path: repo/obj_coverage
-          merge-multiple: true
-
-      - name: Create report
-        working-directory: repo
-        env:
-          GH_TOKEN: ${{ github.token }}
-        run: |
-          ci/ci-coverage-report.bash \
-            ${{ github.run_id }} \
-            "${{ github.event_name == 'pull_request' && github.event.number || '' }}" \
-            "${{ github.event.pull_request.base.sha }}" \
-            "${{ github.event.pull_request.head.sha }}"
-          # Create the report artifact. Note there is no report if the patch is empty.
-          mkdir ../report-artifact
-          [ ! -d obj_coverage/report ] || mv obj_coverage/report ../report-artifact/
-          if [[ "${{ github.event_name }}" == "pull_request" ]]; then
-            echo ${{ github.event.number }} > ../report-artifact/pr-number.txt
-          fi
-
-      - name: Upload report
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-        with:
-          path: report-artifact
-          name: coverage-report
-
-      - name: Upload PR notification
-        if: ${{ github.event_name == 'pull_request' }}
-        uses: ./repo/.github/actions/upload-pr-notification
-        with:
-          path: repo/notification
-          key: coverage
-
-  # Create GitHub issue for failed scheduled jobs
-  # This should always be the last job (we want an issue if anything breaks)
-  create-issue:
-    name: Create issue on failure
-    needs: [publish-codecov, prepare-report]
-    if: ${{ github.event_name == 'schedule' && github.repository == 'verilator/verilator' && github.run_attempt == 1 && failure() && !cancelled() }}
-    runs-on: ubuntu-24.04
-    steps:
-      # Creating issues requires elevated privilege
-      - name: Generate access token
-        id: generate-token
-        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1  # v3.2.0
-        with:
-          client-id: ${{ vars.VERILATOR_CI_ID }}
-          private-key: ${{ secrets.VERILATOR_CI_KEY }}
-          owner: verilator
-          repositories: verilator
-          permission-issues: write
-      - name: Create issue
-        env:
-          GH_TOKEN: ${{ steps.generate-token.outputs.token }}
-        run: |-
-          echo "This issue was created automatically by the GitHub Actions CI due to the failure of a scheduled Code coverage run." >> body.txt
-          echo "" >> body.txt
-          echo "Workflow status: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}" >> body.txt
-          gh issue --repo ${{ github.repository }} create \
-            --title "Code coverage run #${{ github.run_number }} Failed" \
-            --body-file body.txt \
-            --label new \
-            --assignee gezalore,wsnyder
+    - name: Test
+      env:
+        TESTS: coverage-${{ matrix.test }}${{ matrix.num }}
+      run: ./ci/ci-script.bash

.github/workflows/docker.yml

@@ -1,4 +1,3 @@
----
 # Build and push verilator docker image when tags are pushed to the repository.
 # The following variable(s) must be configured in the github repository:
 # DOCKER_HUB_NAMESPACE: docker hub namespace.
@@ -9,7 +8,7 @@ name: Build Verilator Container
 
 on:
   push:
-    tags: ['v*']
+    tags: [ 'v*' ]
   workflow_dispatch:
     inputs:
       manual_tag:
@@ -22,14 +21,11 @@ on:
         type: boolean
         default: false
 
-permissions:
-  contents: write
-
 jobs:
 
   build:
 
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-22.04
 
     strategy:
       matrix:
@@ -38,52 +34,52 @@ jobs:
           # - "ci/docker/buildenv:verilator-buildenv"
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
+    - name: Checkout
+      uses: actions/checkout@v3
 
-      - name: Extract context variables
-        run: |
-          echo "${{ matrix.contexts }}" | sed -r 's/(.*):.*/build_context=\1/' >> "$GITHUB_ENV"
-          echo "${{ matrix.contexts }}" | sed -r 's/.*:(.*)/image_name=\1/' >> "$GITHUB_ENV"
-          echo "git_tag=${GITHUB_REF#refs/*/}" >> "$GITHUB_ENV"
+    - name: Extract context variables
+      run: |
+        echo "${{ matrix.contexts }}" | sed -r 's/(.*):.*/build_context=\1/' >> "$GITHUB_ENV"
+        echo "${{ matrix.contexts }}" | sed -r 's/.*:(.*)/image_name=\1/' >> "$GITHUB_ENV"
+        echo "git_tag=${GITHUB_REF#refs/*/}" >> "$GITHUB_ENV"
 
-      - name: Use manual tag
-        if: ${{ inputs.manual_tag }}
-        run: |
-          echo "git_tag=${{ inputs.manual_tag }}" >> "$GITHUB_ENV"
+    - name: Use manual tag
+      if: ${{ inputs.manual_tag }}
+      run: |
+        echo "git_tag=${{ inputs.manual_tag }}" >> "$GITHUB_ENV"
 
-      - name: Docker meta
-        id: docker_meta
-        uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302  # v6
-        with:
-          images: |
-            ${{ vars.DOCKER_HUB_NAMESPACE }}/${{ env.image_name }}
-          tags: |
-            type=match,pattern=(v.*),group=1,enable=${{ startsWith(github.ref, 'refs/tags/v') }}
-            type=raw,value=${{ inputs.manual_tag }},enable=${{ inputs.manual_tag != '' }}
-            type=raw,value=latest,enable=${{ inputs.add_latest_tag == true }}
+    - name: Docker meta
+      id: docker_meta
+      uses: docker/metadata-action@v4
+      with:
+        images: |
+          ${{ vars.DOCKER_HUB_NAMESPACE }}/${{ env.image_name }}
+        tags: |
+          type=match,pattern=(v.*),group=1,enable=${{ startsWith(github.ref, 'refs/tags/v') }}
+          type=raw,value=${{ inputs.manual_tag }},enable=${{ inputs.manual_tag != '' }}
+          type=raw,value=latest,enable=${{ inputs.add_latest_tag == true }}
 
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@96fe6ef7f33517b61c61be40b68a1882f3264fb8  # v4
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v2
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e  # v4
-        with:
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+      with:
           buildkitd-flags: --debug
 
-      - name: Login to Docker Hub
-        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f  # v4
-        with:
-          username: ${{ secrets.DOCKER_HUB_USER }}
-          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+    - name: Login to Docker Hub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKER_HUB_USER }}
+        password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
 
-      - name: Build and Push to Docker
-        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a  # v7
-        if: startsWith(github.ref, 'refs/tags/v') || github.event_name == 'workflow_dispatch'
-        with:
-          context: ${{ env.build_context }}
-          build-args: SOURCE_COMMIT=${{ env.git_tag }}
-          platforms: linux/arm64,linux/amd64
-          push: ${{ !env.ACT && (startsWith(github.ref, 'refs/tags/v') || github.event_name == 'workflow_dispatch') }}
-          tags: ${{ steps.docker_meta.outputs.tags }}
-          labels: ${{ steps.docker_meta.outputs.labels }}
+    - name: Build and Push to Docker
+      uses: docker/build-push-action@v4
+      if: startsWith(github.ref, 'refs/tags/v')
+      with:
+        context: ${{ env.build_context }}
+        build-args: SOURCE_COMMIT=${{ env.git_tag }}
+        platforms: linux/arm64,linux/amd64
+        push: ${{ !env.ACT && startsWith(github.ref, 'refs/tags/v') }}
+        tags: ${{ steps.docker_meta.outputs.tags }}
+        labels: ${{ steps.docker_meta.outputs.labels }}

.github/workflows/format.yml

@@ -1,60 +1,44 @@
----
 # DESCRIPTION: Github actions config
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-#
+
 name: format
+
 on:
   push:
-    branches-ignore:
-      - 'dependabot/**'  # Avoid duplicates: only run the PR, not the push
-
-permissions:
-  contents: write
-
-defaults:
-  run:
-    working-directory: repo
+  pull_request_target:
+  workflow_dispatch:
 
 jobs:
   format:
-    runs-on: ubuntu-24.04
-    name: Ubuntu 24.04 | format
+    runs-on: ubuntu-22.04
+    name: Ubuntu 22.04 | format
+    env:
+      CI_OS_NAME: linux
+      CI_RUNS_ON: ubuntu-22.04
+      CI_COMMIT: ${{ github.sha }}
+      CI_M32: 0
     steps:
       - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
+        uses: actions/checkout@v3
         with:
-          path: repo
           token: ${{ secrets.GITHUB_TOKEN }}
-
       - name: Install packages for build
-        uses: ./repo/.github/actions/install-deps
-        with:
-          stage: format
-
-      - name: Configure git identity
+        env:
+          CI_BUILD_STAGE_NAME: build
         run: |
-          git config --global user.email "[email protected]"
+          bash ci/ci-install.bash &&
+          sudo apt-get install clang-format-14 yapf3 &&
+          git config --global user.email "[email protected]" &&
           git config --global user.name "github action"
-
-      - name: Configure
-        run: |
-          autoconf
-          ./configure
-
-      - name: Set up Python venv
-        uses: ./repo/.github/actions/setup-venv
-        with:
-          save: ${{ github.ref == 'refs/heads/master' }}
-
       - name: Format code
         run: |
-          source .venv/bin/activate
-          make -j 4 format CLANGFORMAT=clang-format-18
+          autoconf &&
+          ./configure &&
+          make -j 2 format CLANGFORMAT=clang-format-14 &&
           git status
-
       - name: Push
-        run: |-
+        run: |
           if [ -n "$(git status --porcelain)" ]; then
-            git commit . -m "Apply 'make format' [ci skip]" &&
+            git commit . -m "Apply 'make format'" &&
             git push origin
           fi

.github/workflows/msbuild.yml

@@ -0,0 +1,51 @@
+# DESCRIPTION: Github actions config
+# This name is key to badges in README.rst, so we use the name build
+# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+name: msbuild
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+  schedule:
+  - cron: '0 0 * * 0' # weekly
+
+env:
+  CI_OS_NAME: win
+  CI_COMMIT: ${{ github.sha }}
+  CCACHE_COMPRESS: 1
+  CCACHE_DIR: ${{ github.workspace }}/.ccache
+  CCACHE_LIMIT_MULTIPLE: 0.95
+
+defaults:
+  run:
+    working-directory: repo
+
+jobs:
+
+   windows:
+    name: run on windows
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        path: repo
+    - name: Cache $CCACHE_DIR
+      uses: actions/cache@v3
+      with:
+        path: ${{ env.CCACHE_DIR }}
+        key: msbuild-msvc-cmake
+    - name: compile
+      env:
+        WIN_FLEX_BISON: ${{ github.workspace }}/.ccache
+      run: ./ci/ci-win-compile.ps1
+    - name: test build
+      run: ./ci/ci-win-test.ps1
+    - name: Zip up repository
+      run: Compress-Archive -LiteralPath install -DestinationPath verilator.zip
+    - name: Upload zip archive
+      uses: actions/upload-artifact@v3
+      with:
+        path: ${{ github.workspace }}/repo/verilator.zip
+        name: verilator-win.zip

.github/workflows/no-pulls.yml

@@ -1,15 +0,0 @@
----
-# Block PRs against stable branch
-name: "Check PR not against 'stable'"
-on:
-  pull_request:
-    branches: [stable]
-
-jobs:
-  block-pr:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Fail and block PR
-        run: |-
-          echo "Error: Pull requests directly to 'stable' are not allowed. Please PR against 'master'."
-          exit 1

.github/workflows/pages.yml

@@ -1,101 +0,0 @@
----
-# DESCRIPTION: Github actions config
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: Pages
-
-on:
-  push:
-    branches: [master]
-    paths: ["ci/**", ".github/workflows/**"]
-  workflow_dispatch:
-  workflow_run:
-    workflows: ["Code coverage", "RTLMeter"]
-    types: [completed]
-
-# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
-permissions:
-  contents: read
-  pages: write
-  id-token: write
-
-# Allow only one concurrent deployment, skipping runs queued between the run
-# in-progress and latest queued. However, do NOT cancel in-progress runs as we
-# want to allow these deployments to complete.
-# A skipped-upstream run does no work (see the build job's if:), so put it in its
-# own throwaway group: otherwise, as the newest queued run, it would cancel a
-# pending real run and then deploy nothing.
-concurrency:
-  group: ${{ (github.event_name == 'workflow_run' && github.event.workflow_run.conclusion == 'skipped') && format('pages-skip-{0}', github.run_id) || 'pages' }}
-  cancel-in-progress: false
-
-defaults:
-  run:
-    shell: bash
-
-jobs:
-  build:
-    name: Build content
-    runs-on: ubuntu-24.04
-    # A skipped upstream run (e.g. Code coverage / RTLMeter on a branch push)
-    # still fires workflow_run; don't rebuild and redeploy for it. deploy and
-    # notify need this job, so they cascade-skip too.
-    if: ${{ github.event_name != 'workflow_run' || github.event.workflow_run.conclusion != 'skipped' }}
-    outputs:
-      pr-run-ids: ${{ steps.build.outputs.pr-run-ids }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-      - name: Build pages
-        id: build
-        env:
-          GH_TOKEN: ${{ github.token }}
-        run: |
-          ./ci/ci-pages.bash
-      - name: Upload pages artifact
-        uses: actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9  # v5
-        with:
-          path: pages
-
-  deploy:
-    name: Deploy
-    needs: build
-    runs-on: ubuntu-24.04
-    environment:
-      name: github-pages
-      url: ${{ steps.deploy-2.outputs.page_url || steps.deploy-1.outputs.page_url }}
-    steps:
-      # GitHub's Pages backend intermittently fails a deployment mid-sync, retry
-      - name: Deploy to GitHub Pages
-        id: deploy-1
-        continue-on-error: true
-        uses: actions/deploy-pages@cd2ce8fcbc39b97be8ca5fce6e763baed58fa128  # v5
-      - name: Deploy to GitHub Pages (retry)
-        id: deploy-2
-        if: steps.deploy-1.outcome == 'failure'
-        uses: actions/deploy-pages@cd2ce8fcbc39b97be8ca5fce6e763baed58fa128  # v5
-
-  notify:
-    name: Notify
-    needs: [build, deploy]
-    runs-on: ubuntu-24.04
-    if: ${{ github.repository == 'verilator/verilator' }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-      # Use the Verilator CI app to post the comment
-      - name: Generate access token
-        id: generate-token
-        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1  # v3.2.0
-        with:
-          client-id: ${{ vars.VERILATOR_CI_ID }}
-          private-key: ${{ secrets.VERILATOR_CI_KEY }}
-          permission-actions: write
-          permission-pull-requests: write
-      - name: Comment on PR
-        env:
-          GH_TOKEN: ${{ steps.generate-token.outputs.token }}
-          # Slug of the app the above token belongs to, see 'ci-pages-notify.bash'
-          GH_AUTHOR: ${{ steps.generate-token.outputs.app-slug }}
-          PR_RUN_IDS: ${{ needs.build.outputs.pr-run-ids }}
-        run: ./ci/ci-pages-notify.bash

.github/workflows/pr-conflicting.yml

@@ -1,28 +0,0 @@
----
-# Build and push verilator docker image when tags are pushed to the repository.
-# The following variable(s) must be configured in the github repository:
-# DOCKER_HUB_NAMESPACE: docker hub namespace.
-# The following secrets must be configured in the github repository:
-# DOCKER_HUB_USER: user name for logging into docker hub
-# DOCKER_HUB_ACCESS_TOKEN: docker hub access token.
-name: Maintainance - PR conflict check
-
-on:
-  workflow_dispatch:
-  push:
-  pull_request_target:
-    types: [synchronize]
-permissions: {}
-
-jobs:
-  main:
-    runs-on: ubuntu-26.04
-    permissions:
-      contents: read
-      pull-requests: write
-    steps:
-      - name: check if prs are dirty
-        uses: eps1lon/actions-label-merge-conflict@0273be72a0bbd58fcd71d0d6c02c209b50d1e5e1  # 3.1.0
-        with:
-          dirtyLabel: "pr-blocked: needs-rebase"
-          repoToken: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/reusable-build.yml

@@ -1,132 +0,0 @@
----
-# DESCRIPTION: Github actions config
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: reusable-build
-
-on:
-  workflow_call:
-    inputs:
-      cc:
-        description: "Compiler to use: 'gcc' or 'clang'"
-        required: true
-        type: string
-      ccwarn:
-        description: "Build Verilator with warnings treated as errors (--enable-ccwarn)"
-        required: false
-        default: true
-        type: boolean
-      dev-asan:
-        description: "Build Verilator with the address sanitizer (--enable-dev-asan)"
-        required: false
-        default: false
-        type: boolean
-      dev-gcov:
-        description: "Build Verilator with gcov instrumentation (--enable-dev-gcov)"
-        required: false
-        default: false
-        type: boolean
-      install:
-        description: "Archive the Verilator installation, not the repo tree"
-        required: false
-        default: false
-        type: boolean
-      runs-on:
-        description: "Runner to build on, e.g. ubuntu-24.04"
-        required: true
-        type: string
-      sha:
-        description: "Commit SHA to build"
-        required: true
-        type: string
-    outputs:
-      archive:
-        description: "Name of the built archive artifact"
-        value: ${{ jobs.build.outputs.archive }}
-
-env:
-  CACHE_BASE_KEY: build-${{ inputs.runs-on }}-${{ inputs.cc }}${{ inputs.ccwarn && '-ccwarn' || '' }}${{ inputs.dev-asan && '-asan' || '' }}${{ inputs.dev-gcov && '-gcov' || '' }}
-  CCACHE_COMPILERCHECK: content
-  CCACHE_DIR: ${{ github.workspace }}/.ccache
-
-defaults:
-  run:
-    shell: bash
-    working-directory: repo
-
-jobs:
-
-  build:
-    name: Build
-    runs-on: ${{ inputs.runs-on }}
-    outputs:
-      archive: ${{ steps.create-archive.outputs.archive }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-        with:
-          path: repo
-          ref: ${{ inputs.sha }}
-          # Coverage needs full history; install needs it for the 'git describe'
-          # behind 'verilator --version'
-          fetch-depth: ${{ (inputs.install || inputs.dev-gcov) && '0' || '1' }}
-
-      - name: Configure ccache
-        run: |
-          # ccache is unreliable on macOS, and does nothing with 'gcc --coverage'
-          if [ "${{ startsWith(inputs.runs-on, 'macos') }}" = true ] || [ "${{ inputs.dev-gcov }}" = true ]; then
-            echo "CCACHE_DISABLE=1" >> "$GITHUB_ENV"
-          fi
-
-      - name: Cache $CCACHE_DIR
-        if: ${{ env.CCACHE_DISABLE != '1' }}
-        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9  # v5
-        env:
-          CACHE_KEY: ${{ env.CACHE_BASE_KEY }}-ccache
-        with:
-          path: ${{ env.CCACHE_DIR }}
-          key: ${{ env.CACHE_KEY }}-${{ inputs.sha }}
-          restore-keys: |
-            ${{ env.CACHE_KEY }}
-
-      - name: Install packages for build
-        uses: ./repo/.github/actions/install-deps
-        with:
-          stage: build
-
-      - name: Build
-        run: |
-          ./ci/ci-build.bash \
-            --prefix ${{ github.workspace }}/install \
-            --compiler ${{ inputs.cc }} \
-            --light-debug \
-            ${{ inputs.ccwarn && '--ccwarn' || '' }} \
-            ${{ inputs.dev-asan && '--asan' || '' }} \
-            ${{ inputs.dev-gcov && '--gcov' || '' }}
-
-      - name: Install
-        if: ${{ inputs.install }}
-        run: make install
-
-      - name: Create archive
-        id: create-archive
-        working-directory: ${{ github.workspace }}
-        run: |
-          # Archive name, unique per build; flavour tags mark non-default builds
-          ARCHIVE="verilator-${{ inputs.sha }}-${{ inputs.runs-on }}-${{ inputs.cc }}"
-          ARCHIVE="$ARCHIVE${{ inputs.ccwarn && '-ccwarn' || '' }}"
-          ARCHIVE="$ARCHIVE${{ inputs.dev-asan && '-asan' || '' }}"
-          ARCHIVE="$ARCHIVE${{ inputs.dev-gcov && '-gcov' || '' }}"
-          ARCHIVE="$ARCHIVE.tar.zst"
-          # zstd compresses faster than gzip and decompresses far faster in the many downstream jobs
-          ZSTD_NBTHREADS=0 tar --posix --zstd -c -f "$ARCHIVE" ${{ inputs.install && 'install' || 'repo' }}
-          echo "archive=$ARCHIVE" >> "$GITHUB_OUTPUT"
-
-      - name: Upload archive
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-        with:
-          path: ${{ github.workspace }}/${{ steps.create-archive.outputs.archive }}
-          name: ${{ steps.create-archive.outputs.archive }}
-          overwrite: true
-          # Archive is already zstd-compressed; skip upload-artifact's zip pass
-          compression-level: 0

.github/workflows/reusable-lint-py.yml

@@ -1,44 +0,0 @@
----
-# DESCRIPTION: Github actions config
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: reusable-lint-py
-
-on:
-  workflow_call:
-
-defaults:
-  run:
-    shell: bash
-    working-directory: repo
-
-jobs:
-
-  lint-py:
-    runs-on: ubuntu-22.04
-    name: Sub-lint | Python
-    steps:
-      - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-        with:
-          path: repo
-
-      - name: Install dependencies
-        uses: ./repo/.github/actions/install-deps
-        with:
-          stage: lint-py
-
-      - name: Configure
-        run: |
-          autoconf
-          ./configure --enable-longtests --enable-ccwarn
-
-      - name: Set up Python venv
-        uses: ./repo/.github/actions/setup-venv
-        with:
-          save: ${{ github.ref == 'refs/heads/master' }}
-
-      - name: Lint
-        run: |-
-          source .venv/bin/activate
-          make -k lint-py

.github/workflows/reusable-rtlmeter-run.yml

@@ -1,201 +0,0 @@
----
-# DESCRIPTION: Github actions config
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: reusable-rtlmeter-run
-
-on:
-  workflow_call:
-    inputs:
-      tag:
-        description: "Unique identifier for storing results"
-        type: string
-        required: true
-      runs-on:
-        description: "Runner to use, e.g.: ubuntu-24.04"
-        type: string
-        required: true
-      cc:
-        description: "Compiler to use: 'gcc' or 'clang'"
-        type: string
-        required: true
-      verilator-archive-new:
-        description: "Name of the installation archive artifact from reusable-build, new version"
-        type: string
-        required: true
-      verilator-archive-old:
-        description: "Name of the installation archive artifact from reusable-build, old version"
-        type: string
-        required: false
-        default: ""
-      # Note: The combination of 'cases' and 'run-name' must be unique for all
-      # invocations of this workflow within a run of the parent workflow.
-      # These two are used together to generate a unique results file name.
-      cases:
-        description: "RTLMeter cases to run"
-        type: string
-        required: true
-      run-name:
-        description: "Run name (identifier) to add to collated results"
-        type: string
-        required: true
-      compileArgs:
-        description: "Additional Verilator command line arguments"
-        type: string
-        default: ""
-      executeArgs:
-        description: "Additional simulator command line arguments"
-        type: string
-        default: ""
-
-defaults:
-  run:
-    shell: bash
-
-env:
-  # RTLMeter measures compile/execute times, so caching must stay off to keep
-  # timings representative; ccache is still on PATH but acts as a pass-through
-  CCACHE_DISABLE: 1
-
-jobs:
-  run:
-    runs-on: ${{ inputs.runs-on }}
-    name: Run
-    steps:
-      - name: Checkout Verilator CI scripts
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-        with:
-          path: repo
-          sparse-checkout: |
-            .github/actions
-            ci
-
-      - name: Install dependencies
-        uses: ./repo/.github/actions/install-deps
-        with:
-          stage: rtlmeter-run
-
-      - name: Checkout RTLMeter
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-        with:
-          repository: "verilator/rtlmeter"
-          path: rtlmeter
-
-      - name: Setup RTLMeter venv
-        working-directory: rtlmeter
-        run: make venv
-
-      ########################################################################
-      # Run with new Verilator
-      ########################################################################
-
-      - name: Download Verilator installation archive - new
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8
-        with:
-          name: ${{ inputs.verilator-archive-new }}
-
-      - name: Unpack Verilator installation archive - new
-        run: |
-          tar --zstd -x -f ${{ inputs.verilator-archive-new }}
-          mv install verilator-new
-
-      - name: Compile cases - new
-        working-directory: rtlmeter
-        run: |
-          export PATH="${{ github.workspace }}/verilator-new/bin:$PATH"
-          ./rtlmeter run --timeout 60 --verbose --cases='${{inputs.cases}}' --compileArgs='${{inputs.compileArgs}}' --executeArgs='${{inputs.executeArgs}}' --nExecute=0
-          ccache -svv
-
-      - name: Execute cases - new
-        working-directory: rtlmeter
-        continue-on-error: true  # Do not fail on error, so we can at least save the successful results
-        run: |
-          export PATH="${{ github.workspace }}/verilator-new/bin:$PATH"
-          ./rtlmeter run --timeout 60 --verbose --cases='${{inputs.cases}}' --compileArgs='${{inputs.compileArgs}}' --executeArgs='${{inputs.executeArgs}}'
-
-      - name: Collate results - new
-        id: results
-        working-directory: rtlmeter
-        run: |
-          export PATH="${{ github.workspace }}/verilator-new/bin:$PATH"
-          # Use 'inputs.cases' and 'inputs.run-name' to generate a unique file name
-          hash=$(md5sum <<< '${{ inputs.cases }} ${{ inputs.run-name }}' | awk '{print $1}')
-          echo "hash=${hash}" >> $GITHUB_OUTPUT
-          ./rtlmeter collate --runName "${{ inputs.run-name }}"  > ../results-${hash}.json
-
-      - name: Report results - new
-        working-directory: rtlmeter
-        run: |
-          export PATH="${{ github.workspace }}/verilator-new/bin:$PATH"
-          ./rtlmeter report --steps '*' --metrics '*' ../results-${{ steps.results.outputs.hash }}.json
-
-      - name: Upload results - new
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-        with:
-          path: results-${{ steps.results.outputs.hash }}.json
-          name: rtlmeter-${{ inputs.tag }}-results-${{ steps.results.outputs.hash }}
-          overwrite: true
-          retention-days: 2
-
-      - name: Report status - new
-        working-directory: rtlmeter
-        run: |-  # This will fail the job if any of the runs failed
-          export PATH="${{ github.workspace }}/verilator-new/bin:$PATH"
-          ./rtlmeter run --verbose --cases='${{inputs.cases}}' --compileArgs='${{inputs.compileArgs}}' --executeArgs='${{inputs.executeArgs}}'
-          # Clean up for run with old version
-          rm -rf work
-          rm -rf ${{ github.workspace }}/verilator-new
-
-      ########################################################################
-      # Run with old Verilator **on same machine for consistency**
-      ########################################################################
-
-      - name: Download Verilator installation archive - old
-        if: ${{ inputs.verilator-archive-old != '' }}
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8
-        with:
-          name: ${{ inputs.verilator-archive-old }}
-
-      - name: Unpack Verilator installation archive - old
-        if: ${{ inputs.verilator-archive-old != '' }}
-        run: |
-          tar --zstd -x -f ${{ inputs.verilator-archive-old }}
-          mv install verilator-old
-
-      - name: Compile cases - old
-        if: ${{ inputs.verilator-archive-old != '' }}
-        working-directory: rtlmeter
-        run: |
-          export PATH="${{ github.workspace }}/verilator-old/bin:$PATH"
-          ./rtlmeter run --timeout 60 --verbose --cases='${{inputs.cases}}' --compileArgs='${{inputs.compileArgs}}' --executeArgs='${{inputs.executeArgs}}' --nExecute=0
-          ccache -svv
-
-      - name: Execute cases - old
-        if: ${{ inputs.verilator-archive-old != '' }}
-        working-directory: rtlmeter
-        run: |
-          export PATH="${{ github.workspace }}/verilator-old/bin:$PATH"
-          ./rtlmeter run --timeout 60 --verbose --cases='${{inputs.cases}}' --compileArgs='${{inputs.compileArgs}}' --executeArgs='${{inputs.executeArgs}}'
-
-      - name: Collate results - old
-        if: ${{ inputs.verilator-archive-old != '' }}
-        working-directory: rtlmeter
-        run: |
-          export PATH="${{ github.workspace }}/verilator-old/bin:$PATH"
-          ./rtlmeter collate --runName "${{ inputs.run-name }}"  > ../reference-${{ steps.results.outputs.hash }}.json
-
-      - name: Report results - old
-        if: ${{ inputs.verilator-archive-old != '' }}
-        working-directory: rtlmeter
-        run: |
-          export PATH="${{ github.workspace }}/verilator-old/bin:$PATH"
-          ./rtlmeter report --steps '*' --metrics '*' ../reference-${{ steps.results.outputs.hash }}.json
-
-      - name: Upload results - old
-        if: ${{ inputs.verilator-archive-old != '' }}
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-        with:
-          path: reference-${{ steps.results.outputs.hash }}.json
-          name: rtlmeter-${{ inputs.tag }}-reference-${{ steps.results.outputs.hash }}
-          overwrite: true
-          retention-days: 2

.github/workflows/reusable-test.yml

@@ -1,134 +0,0 @@
----
-# DESCRIPTION: Github actions config
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: reusable-test
-
-on:
-  workflow_call:
-    inputs:
-      archive:
-        description: "Name of the repository archive artifact from reusable-build"
-        required: true
-        type: string
-      cc:
-        description: "Compiler to use: 'gcc' or 'clang'"
-        required: true
-        type: string
-      dev-gcov:
-        description: "Collect gcov coverage data from the test run"
-        required: false
-        default: false
-        type: boolean
-      reloc:
-        description: "Relocate the installation before testing"
-        required: false
-        default: false
-        type: boolean
-      runs-on:
-        description: "Runner to test on, e.g. ubuntu-24.04"
-        required: true
-        type: string
-      suite:
-        description: "Test suite to run, e.g. dist-vlt-0"
-        required: true
-        type: string
-
-permissions:
-  contents: read
-  actions: read
-
-env:
-  CCACHE_COMPILERCHECK: content
-  CCACHE_DIR: ${{ github.workspace }}/.ccache
-  CXX: ${{ inputs.cc == 'clang' && 'clang++' || 'g++' }}
-
-defaults:
-  run:
-    shell: bash
-    working-directory: repo
-
-jobs:
-
-  test:
-    runs-on: ${{ inputs.runs-on }}
-    name: Test
-    steps:
-
-      - name: Download repository archive
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8
-        with:
-          name: ${{ inputs.archive }}
-          path: ${{ github.workspace }}
-
-      - name: Unpack repository archive
-        working-directory: ${{ github.workspace }}
-        run: |
-          tar --zstd -x -f ${{ inputs.archive }}
-          ls -lsha
-
-      - name: Configure ccache
-        run: |
-          # ccache is unreliable on macOS, and does nothing with 'gcc --coverage'
-          if [ "${{ startsWith(inputs.runs-on, 'macos') }}" = true ] || [ "${{ inputs.dev-gcov }}" = true ]; then
-            echo "CCACHE_DISABLE=1" >> "$GITHUB_ENV"
-          fi
-
-      # Test-job ccache is stored as an artifact, not actions/cache
-      - name: Restore ccache
-        id: ccache
-        if: ${{ env.CCACHE_DISABLE != '1' }}
-        uses: ./repo/.github/actions/artifact-cache
-        with:
-          mode: restore
-          path: ${{ env.CCACHE_DIR }}
-          key: ccache-${{ inputs.runs-on }}-${{ inputs.cc }}-${{ inputs.suite }}
-
-      - name: Install test dependencies
-        uses: ./repo/.github/actions/install-deps
-        with:
-          stage: test
-
-      - name: Set up Python venv
-        uses: ./repo/.github/actions/setup-venv
-        with:
-          save: ${{ github.ref == 'refs/heads/master' }}
-
-      - name: Test
-        id: run-test
-        continue-on-error: true
-        run: |
-          source .venv/bin/activate
-          ./ci/ci-test.bash \
-            --suite ${{ inputs.suite }} \
-            ${{ inputs.reloc && format('--reloc {0}/reloc', github.workspace) || '' }}
-
-      - name: Combine code coverage data
-        if: ${{ inputs.dev-gcov }}
-        run: |
-          make coverage-combine
-          mv obj_coverage/verilator.info obj_coverage/verilator-${{ inputs.suite }}.info
-          ls -lsha obj_coverage
-
-      - name: Upload code coverage data
-        if: ${{ inputs.dev-gcov }}
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-        with:
-          path: ${{ github.workspace }}/repo/obj_coverage/verilator-${{ inputs.suite }}.info
-          name: code-coverage-${{ inputs.suite }}
-
-      - name: Save ccache
-        if: ${{ env.CCACHE_DISABLE != '1' && !cancelled() }}
-        uses: ./repo/.github/actions/artifact-cache
-        with:
-          mode: save
-          path: ${{ env.CCACHE_DIR }}
-          key: ${{ steps.ccache.outputs.key }}
-          # Keep master's cache around longer; PR/branch caches churn faster
-          retention-days: ${{ github.ref == 'refs/heads/master' && 7 || 3 }}
-
-      - name: Fail job if a test failed
-        if: ${{ steps.run-test.outcome == 'failure' && !cancelled() }}
-        run: |-
-          echo "Click on '> Tests' arrow above (or on other steps), to expand it, and see the failure reasons"
-          exit 1

.github/workflows/rtlmeter.yml

@@ -1,417 +0,0 @@
----
-# DESCRIPTION: Github actions config
-# This name is key to badges in README.rst, so we use the name build
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-name: RTLMeter
-
-on:
-  workflow_dispatch:
-  schedule:
-    - cron: '0 2 * * *'  # Daily, starting at 02:00 UTC
-  pull_request:
-    types: [opened, synchronize, reopened, labeled, unlabeled]
-  push:
-    branches: ['ci-rtlmeter/**']
-
-permissions:
-  contents: read
-
-defaults:
-  run:
-    shell: bash
-
-concurrency:
-  # At most 1 job per branch. Auto cancel all but scheduled jobs
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: ${{ github.event_name != 'schedule' }}
-
-jobs:
-  start:
-    name: Start
-    # Only run scheduled jobs if explicitly enabled for that repo (e.g.: not on forks)
-    # Only run pull request jobs if labelled as needing an RTLMeter run
-    # Always run workflow dispatch jobs
-    if: |
-      (github.event_name == 'schedule'
-        && vars.ENABLE_SCHEDULED_JOBS == 'true') ||
-      (github.event_name == 'pull_request'
-        && contains(github.event.pull_request.labels.*.name, 'pr: rtlmeter')) ||
-      (github.event_name == 'workflow_dispatch') ||
-      (github.event_name == 'push')
-    runs-on: ubuntu-24.04
-    outputs:
-      old-sha: ${{ steps.start.outputs.old-sha }}
-      cases: ${{ steps.cases.outputs.cases }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-
-      - name: Startup
-        id: start
-        env:
-          GH_TOKEN: ${{ github.token }}
-        run: |
-          [[ "${{ github.event_name }}" == 'pull_request' ]] || exit 0
-          # For a pull request, 'github.sha' is the test merge commit. Its
-          # first parent is the target branch commit it was merged with for this run.
-          OLD_SHA="$(gh api "repos/${{ github.repository }}/commits/${{ github.sha }}" --jq '.parents[0].sha')"
-          echo "old-sha=$OLD_SHA" >> "$GITHUB_OUTPUT"
-
-      - name: Load RTLMeter cases
-        id: cases
-        run: echo "cases=$(ci/ci-rtlmeter-cases.py --event-name ${{ github.event_name }})" >> "$GITHUB_OUTPUT"
-
-  build-gcc-new:
-    name: Build New Verilator - GCC
-    needs: start
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: gcc
-      ccwarn: false
-      install: true
-      runs-on: ubuntu-24.04
-      sha: ${{ github.sha }}
-
-  build-clang-new:
-    name: Build New Verilator - Clang
-    needs: start
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: clang
-      ccwarn: false
-      install: true
-      runs-on: ubuntu-24.04
-      sha: ${{ github.sha }}
-
-  build-gcc-old:
-    name: Build Old Verilator - GCC
-    needs: start
-    if: ${{ needs.start.outputs.old-sha != '' }}
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: gcc
-      ccwarn: false
-      install: true
-      runs-on: ubuntu-24.04
-      sha: ${{ needs.start.outputs.old-sha }}
-
-  build-clang-old:
-    name: Build Old Verilator - Clang
-    needs: start
-    if: ${{ needs.start.outputs.old-sha != '' }}
-    uses: ./.github/workflows/reusable-build.yml
-    with:
-      cc: clang
-      ccwarn: false
-      install: true
-      runs-on: ubuntu-24.04
-      sha: ${{ needs.start.outputs.old-sha }}
-
-  run-gcc:
-    name: Run GCC | ${{ matrix.cases }}
-    needs:
-      - start
-      - build-gcc-new
-      - build-gcc-old
-    # Run even if 'build-*-old' was skipped (no old SHA), but not if any
-    # dependency failed, the workflow was cancelled, or 'start' was skipped
-    # (e.g. the workflow was not enabled, so there is nothing to run against).
-    if: ${{ !failure() && !cancelled() && needs.start.result == 'success' }}
-    uses: ./.github/workflows/reusable-rtlmeter-run.yml
-    with:
-      tag: gcc
-      runs-on: ubuntu-24.04
-      cc: gcc
-      verilator-archive-new: ${{ needs.build-gcc-new.outputs.archive }}
-      verilator-archive-old: ${{ needs.build-gcc-old.outputs.archive }}
-      cases: ${{ matrix.cases }}
-      run-name: "gcc"
-      compileArgs: ""
-      executeArgs: ""
-    strategy:
-      fail-fast: ${{ github.event_name == 'pull_request' }}
-      max-parallel: 7
-      matrix:
-        cases: ${{ fromJSON(needs.start.outputs.cases)['gcc'] }}
-
-  run-clang:
-    name: Run Clang | ${{ matrix.cases }}
-    needs:
-      - start
-      - build-clang-new
-      - build-clang-old
-    # Run even if 'build-*-old' was skipped (no old SHA), but not if any
-    # dependency failed, the workflow was cancelled, or 'start' was skipped
-    # (e.g. the workflow was not enabled, so there is nothing to run against).
-    if: ${{ !failure() && !cancelled() && needs.start.result == 'success' }}
-    uses: ./.github/workflows/reusable-rtlmeter-run.yml
-    with:
-      tag: clang
-      runs-on: ubuntu-24.04
-      cc: clang
-      verilator-archive-new: ${{ needs.build-clang-new.outputs.archive }}
-      verilator-archive-old: ${{ needs.build-clang-old.outputs.archive }}
-      cases: ${{ matrix.cases }}
-      run-name: "clang --threads 4"
-      compileArgs: "--threads 4"
-      executeArgs: ""
-    strategy:
-      fail-fast: ${{ github.event_name == 'pull_request' }}
-      max-parallel: 7
-      matrix:
-        cases: ${{ fromJSON(needs.start.outputs.cases)['clang'] }}
-
-  run-gcc-hier:
-    name: Run GCC hier | ${{ matrix.cases }}
-    needs:
-      - start
-      - build-gcc-new
-      - build-gcc-old
-    # Run even if 'build-*-old' was skipped (no old SHA), but not if any
-    # dependency failed, the workflow was cancelled, or 'start' was skipped
-    # (e.g. the workflow was not enabled, so there is nothing to run against).
-    if: ${{ !failure() && !cancelled() && needs.start.result == 'success' }}
-    uses: ./.github/workflows/reusable-rtlmeter-run.yml
-    with:
-      tag: gcc-hier
-      runs-on: ubuntu-24.04
-      cc: gcc
-      verilator-archive-new: ${{ needs.build-gcc-new.outputs.archive }}
-      verilator-archive-old: ${{ needs.build-gcc-old.outputs.archive }}
-      cases: ${{ matrix.cases }}
-      run-name: "gcc --hierarchical"
-      compileArgs: "--hierarchical"
-      executeArgs: ""
-    strategy:
-      fail-fast: ${{ github.event_name == 'pull_request' }}
-      max-parallel: 6
-      matrix:
-        cases: ${{ fromJSON(needs.start.outputs.cases)['gcc-hier'] }}
-
-  combine-results:
-    name: Combine results
-    needs: [run-gcc, run-clang, run-gcc-hier]
-    # Skip if cancelled.
-    # On PRs, run if something succeeded and nothing failed.
-    # On non-PRs, run if anything succeeded or failed (so partial results are still published).
-    if: >-
-      ${{ !cancelled() && (
-               (github.event_name == 'pull_request' && (contains(needs.*.result, 'success') && !contains(needs.*.result, 'failure')))
-            || (github.event_name != 'pull_request' && (contains(needs.*.result, 'success') ||  contains(needs.*.result, 'failure')))
-          )}}
-    runs-on: ubuntu-24.04
-    outputs:
-      # The run tags, derived from the 'run-*' dependency job names
-      run-tags: ${{ steps.tags.outputs.tags }}
-    env:
-      GH_TOKEN: ${{ github.token }}
-      # 'gh' resolves the repo from git otherwise, but this job has no checkout
-      # of this repo at the workspace root
-      GH_REPO: ${{ github.repository }}
-    steps:
-      # Derive the run tags from the dependency job names ('run-<tag>')
-      - name: Determine run tags
-        id: tags
-        run: echo "tags=$(jq -r 'keys | map(sub("^run-"; "")) | join(" ")' <<< '${{ toJSON(needs) }}')" >> "$GITHUB_OUTPUT"
-
-      - name: Checkout RTLMeter
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-        with:
-          repository: "verilator/rtlmeter"
-          path: rtlmeter
-
-      - name: Setup RTLMeter venv
-        working-directory: rtlmeter
-        run: make venv
-
-      - name: Download all results
-        run: |
-          for tag in ${{ steps.tags.outputs.tags }}; do
-            mkdir artifacts all-results-$tag
-            gh run download ${{ github.run_id }} --pattern "rtlmeter-$tag-results-*" --dir artifacts
-            mv $(find artifacts -name "*.json") all-results-$tag/
-            rm -rf artifacts
-          done
-      - name: Combine results
-        working-directory: rtlmeter
-        run: |
-          for tag in ${{ steps.tags.outputs.tags }}; do
-            ./rtlmeter collate ../all-results-$tag/*.json > ../all-results-$tag.json
-          done
-      - name: Upload combined results
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-        with:
-          path: all-results-*.json
-          name: all-results
-          overwrite: true
-          retention-days: 30
-
-      # The reference (old) results only exist for pull requests, where the
-      # 'build-*-old' jobs run and the run jobs produce '*-reference-*' artifacts.
-      - name: Download reference results
-        if: ${{ github.event_name == 'pull_request' }}
-        run: |
-          for tag in ${{ steps.tags.outputs.tags }}; do
-            mkdir artifacts all-reference-$tag
-            gh run download ${{ github.run_id }} --pattern "rtlmeter-$tag-reference-*" --dir artifacts
-            mv $(find artifacts -name "*.json") all-reference-$tag/
-            rm -rf artifacts
-          done
-      - name: Combine reference results
-        if: ${{ github.event_name == 'pull_request' }}
-        working-directory: rtlmeter
-        run: |
-          for tag in ${{ steps.tags.outputs.tags }}; do
-            ./rtlmeter collate ../all-reference-$tag/*.json > ../all-reference-$tag.json
-          done
-      - name: Upload reference results
-        if: ${{ github.event_name == 'pull_request' }}
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-        with:
-          path: all-reference-*.json
-          name: all-reference
-          overwrite: true
-          retention-days: 30
-
-  publish-scheduled-results:
-    name: Publish results to verilator/verilator-rtlmeter-results
-    needs: combine-results
-    # Only run on scheduled builds on the main repository. We also restrict
-    # the publishing to run only on the first run_attempt. This is required
-    # to prevent multiple uploads the same day (if rerunning), as the
-    # dashboard UI currently assumes there is only one data point per
-    # calendar day. Results from reruns can be imported manually if needed.
-    if: ${{ github.event_name == 'schedule' && github.repository == 'verilator/verilator' && github.run_attempt == 1 && contains(needs.*.result, 'success') && !cancelled() }}
-    runs-on: ubuntu-24.04
-    steps:
-      - name: Download combined results
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8
-        with:
-          name: all-results
-          path: results
-      - name: Upload published results
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-        with:
-          path: results/*.json
-          name: published-results
-      # Pushing to verilator/verilator-rtlmeter-results requires elevated permissions
-      - name: Generate access token
-        id: generate-token
-        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1  # v3.2.0
-        with:
-          client-id: ${{ vars.VERILATOR_CI_ID }}
-          private-key: ${{ secrets.VERILATOR_CI_KEY }}
-          owner: verilator
-          repositories: verilator-rtlmeter-results
-          permission-contents: write
-      - name: Checkout verilator-rtlmeter-results
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-        with:
-          repository: "verilator/verilator-rtlmeter-results"
-          token: ${{ steps.generate-token.outputs.token }}
-          path: verilator-rtlmeter-results
-      - name: Import results
-        id: import-results
-        working-directory: verilator-rtlmeter-results
-        run: |
-          for f in $(find ../results -name "*.json"); do \
-            echo "Importing $f"; \
-            ./bin/add-rtlmeter-result $f; \
-          done
-          test -z "$(git status --porcelain)" || echo "valid=1" >> "$GITHUB_OUTPUT"
-      - name: Push to verilator-rtlmeter-results
-        if: ${{ steps.import-results.outputs.valid }}
-        working-directory: verilator-rtlmeter-results
-        run: |
-          git config --global user.email "[email protected]"
-          git config --global user.name "github action"
-          git add .
-          git commit -m "Verilator CI: Results of 'RTLMeter' workflow run #${{ github.run_number }}"
-          git push origin
-
-  prepare-pr-results:
-    name: Prepare Pull Request results
-    needs: combine-results
-    if: ${{ github.event_name == 'pull_request' && github.repository == 'verilator/verilator' && needs.combine-results.result == 'success' }}
-    runs-on: ubuntu-24.04
-    permissions:
-      actions: read
-    steps:
-      - name: Checkout RTLMeter
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-        with:
-          repository: "verilator/rtlmeter"
-          path: rtlmeter
-
-      - name: Setup RTLMeter venv
-        working-directory: rtlmeter
-        run: make venv
-
-      - name: Checkout Verilator
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7
-        with:
-          path: verilator
-
-      - name: Create report
-        id: report
-        working-directory: verilator
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          ln -s ../rtlmeter rtlmeter
-          gh repo set-default ${{ github.repository }}
-          # Create run report - save status to fail job if the script did
-          STATUS=0
-          ci/ci-rtlmeter-report.bash ${{ github.run_id }} ${{ github.sha }} ${{ needs.combine-results.outputs.run-tags }} || STATUS=$?
-          echo "status=$STATUS" >> "$GITHUB_OUTPUT"
-          # Create the report artifact
-          mkdir ../report-artifact
-          mv rtlmeter-report/report ../report-artifact/
-          echo ${{ github.event.number }} > ../report-artifact/pr-number.txt
-
-      - name: Upload report
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7
-        with:
-          path: report-artifact
-          name: rtlmeter-report
-
-      - name: Upload PR notification
-        uses: ./verilator/.github/actions/upload-pr-notification
-        with:
-          path: verilator/rtlmeter-report/notification
-          key: rtlmeter
-
-      - name: Report status
-        run: exit ${{ steps.report.outputs.status }}
-
-  # Create GitHub issue for failed scheduled jobs
-  # This should always be the last job (we want an issue if anything breaks)
-  create-issue:
-    name: Create issue on failure
-    needs: publish-scheduled-results
-    if: ${{ github.event_name == 'schedule' && github.repository == 'verilator/verilator' && github.run_attempt == 1 && failure() && !cancelled() }}
-    runs-on: ubuntu-24.04
-    steps:
-      # Creating issues requires elevated privilege
-      - name: Generate access token
-        id: generate-token
-        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1  # v3.2.0
-        with:
-          client-id: ${{ vars.VERILATOR_CI_ID }}
-          private-key: ${{ secrets.VERILATOR_CI_KEY }}
-          owner: verilator
-          repositories: verilator
-          permission-issues: write
-      - name: Create issue
-        env:
-          GH_TOKEN: ${{ steps.generate-token.outputs.token }}
-        run: |-
-          echo "This issue was created automatically by the GitHub Actions CI due to the failure of a scheduled RTLMeter run." >> body.txt
-          echo "" >> body.txt
-          echo "Workflow status: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}" >> body.txt
-          gh issue --repo ${{ github.repository }} create \
-            --title "RTLMeter run #${{ github.run_number }} Failed" \
-            --body-file body.txt \
-            --label new \
-            --assignee gezalore,wsnyder

.gitignore

@@ -17,7 +17,6 @@
 *.pdf
 /Makefile
 /.ccache
-/.venv/
 /artifact/
 README
 TAGS
@@ -30,25 +29,17 @@ dddrun*
 doxygen-doc
 gdbrun*
 gmon.out
-internals.txt
 ncverilog.history
-nohup.out
-verilator-config-version.cmake
-verilator-config.cmake
-verilator.pc
+internals.txt
 verilator.txt
 verilator_bin*
 verilator_coverage_bin*
+verilator.pc
+verilator-config.cmake
+verilator-config-version.cmake
 **/__pycache__/*
 **/_build/*
 **/obj_dir/*
 /.vscode/
 /.idea/
 /cmake-build-*/
-/obj_coverage/
-/test_regress/snapshot/
-xmverilog.*
-xrun.history
-
-# Normal CMake build directory
-/build

.pre-commit-hooks.yaml

@@ -1,8 +0,0 @@
----
-- id: verilator
-  name: verilator-lint
-  description: Runs verilator Docker image to lint (System) Verilog designs
-  args: [--lint-only]
-  language: docker_image
-  entry: verilator/verilator:latest
-  types_or: [verilog, system-verilog]

.style.yapf

@@ -1,4 +0,0 @@
-[style]
-based_on_style = pep8
-column_limit = 99
-#split_before_arithmetic_operator=True

AGENTS.md

@@ -1,148 +0,0 @@
-<!-- DESCRIPTION: Verilator: Repository-wide guidelines for AI coding agents
-     SPDX-FileCopyrightText: 2026-2026 Wilson Snyder
-     SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0 -->
-
-# Verilator Guidelines for AI Coding Agents
-
-These files are the general layer an agent loads first -- nearest file wins, so
-you read this repository-root file plus the one for the directory you are
-editing. They stay deliberately high-level: where to start, how the tree is laid
-out, and the conventions reviewers otherwise enforce by hand. They are an index,
-not the architecture reference -- for depth (how a pass works internally, the
-algorithms, node lifetime) they point you to `docs/internals.rst`. When the
-guidance here is not enough, that is where to look next.
-
-This file has two parts. **Orientation** gets you productive in the codebase from
-a cold start. **Before you open a PR** is the checklist of conventions reviewers
-otherwise have to enforce by hand -- read it before submitting any change.
-
-Then read the directory guide for the area you are editing:
-
-- [src/AGENTS.md](src/AGENTS.md) -- compiler C++ sources: AST, visitors, passes, parser, style
-- [include/AGENTS.md](include/AGENTS.md) -- runtime library (`verilated*`): C++14, MT-safety, fixed-width types
-- [test_regress/AGENTS.md](test_regress/AGENTS.md) -- regression tests: harness, drivers, golden files
-- [docs/AGENTS.md](docs/AGENTS.md) -- documentation (`*.rst`)
-
-______________________________________________________________________
-
-# Orientation
-
-## What Verilator is
-
-Verilator is a *compiler*, not an interpreter. It translates synthesizable (and
-much behavioral) SystemVerilog into a cycle-accurate C++ model that you then
-compile and run. Almost every decision is made at compile ("verilation") time;
-the generated C++ just advances state each evaluation. Optimize for verilation-
-time work over runtime work.
-
-## The pipeline is the spine
-
-A run is an ordered sequence of passes over one shared AST (abstract syntax
-tree). In source order:
-
-| Stage | What it does | Key files |
-|---|---|---|
-| Preprocess + parse | Lex and parse text into a raw AST -- builds nodes only, no semantic checks | `verilog.l`, `verilog.y` |
-| Link / elaborate | Resolve names, scopes, parameters; instantiate the hierarchy | `V3LinkParse`, `V3LinkDot`, `V3Param` |
-| Width / type | Assign and check data types and bit widths | `V3Width` |
-| Transform / optimize / schedule | Constant fold, lower language features, schedule events | `V3Const`, `V3Randomize`, `V3Assert*`, `V3Sched`, `V3Timing`, `V3Dfg` |
-| Emit | Lower the final AST to generated C++ | `V3EmitC*` |
-| Runtime | Library the generated model links against | `include/verilated*` |
-
-This table is the map; `docs/internals.rst` has the detail behind each stage.
-
-## Where to make a change
-
-Map the symptom to the pass that owns it, then start by reading that pass's
-top-of-file comment.
-
-| Symptom or feature area | Start in |
-|---|---|
-| Type/width error, "what type is this", implicit conversion | `V3Width` |
-| Name/scope/parameter resolution ("Can't find...", hierarchy) | `V3LinkDot`, `V3Param` |
-| `randomize` / `constraint` / `rand` / `randc` | `V3Randomize` |
-| `assert` / `property` / `sequence` / `cover` | `V3Assert`, `V3AssertPre`, `V3AssertNfa` |
-| `fork` / timing / `#delay` / NBA / event scheduling | `V3Sched`, `V3Timing`, `V3Fork` |
-| Syntax wrongly accepted or rejected | `verilog.y`, `verilog.l` |
-| Wrong generated C++ | `V3EmitC*` |
-| Runtime model behavior | `include/verilated*` |
-
-## Build and run a test
-
-- Build in the source tree: `autoconf && ./configure && make -j8`. Configure with
-  `--enable-ccwarn` so a new compiler warning stops the build.
-- Run one test from the repository root: `test_regress/t/t_<name>.py`.
-- Run the full regression with `make test`. The complete suite requires
-  configuring with `--enable-longtests` (works on every OS, including macOS).
-
-______________________________________________________________________
-
-# Before you open a PR
-
-## Scope and process
-
-- [ ] Searched open PRs and issues -- duplicating in-flight work wastes review time.
-- [ ] Fixed the general root cause, not just the reported case -- if it also
-  affects other modules/classes/interfaces, cover them or expect rejection.
-- [ ] PR is single-purpose. Refactors, drive-by fixes found along the way, and new
-  features each go in separate PRs; land standalone cleanups first.
-- [ ] Every bug fix has a test that fails *without* the fix; include the issue's
-  own reproducer when possible.
-- [ ] New code aims for 100% line coverage; branch coverage far below line coverage
-  signals guards callers never violate -- justify or remove them.
-- [ ] Ran `make format` (clang-format), `make cppcheck`, and `make lint-py`;
-  self-reviewed the diff for leftover debug code, stale comments, and
-  copy-paste errors.
-- [ ] Ran the full regression on at least one OS before submitting. Partial runs
-  are fine during development, but the submitted PR is expected to pass every
-  test.
-- [ ] Validated the code changes against recommendations in the AGENTS.md files.
-- [ ] Did not edit `docs/CONTRIBUTORS` (humans only) or `Changes` (maintainer
-  updates it near release).
-
-## Drafting a PR
-
-- [ ] When creating a pull request message, omit itemized lists of changed
-  files and changes, since reviewers already have access to the diff.
-
-## Pick the right diagnostic (and its required test)
-
-The API you choose determines which test must accompany the change.
-
-| API | Output | Meaning | Required test |
-|---|---|---|---|
-| `v3error("...")` | `%Error:` | User wrote invalid SystemVerilog | `t_*_bad*.v` + `.out` golden |
-| `v3error("Unsupported: ...")` | `%Error-UNSUPPORTED:` | Legal SV that Verilator does not yet support | `t_*_unsup*.v` + `.out` golden |
-| `v3warn(CODE, "...")` | `%Warning-CODE:` | Legal but suspicious code | warning test + `.out` golden |
-| `v3fatalSrc("...")` | `%Error: Internal Error` | Should-never-happen internal assertion | none -- not user-triggerable |
-
-- Every `v3error`/`v3warn` needs a test in `test_regress/t/` -- enforced by the
-  warn-coverage distribution test. `v3fatalSrc` is exempt.
-- Reserve "Unsupported:" for not-yet-implemented features, never for user mistakes.
-- When an error enforces a spec-defined restriction, cite the clause
-  (`IEEE 1800-2023 11.4.7`) so it is verifiable. Update `docs/guide/warnings.rst`
-  when adding or changing a warning.
-- On error paths, clean up or replace invalid AST (e.g. `AstConst::BitFalse`) so
-  later passes do not crash after the error.
-
-## Cross-cutting code rules
-
-- [ ] No non-ASCII characters in C++ sources or headers: write `--` (two ASCII
-  hyphens) rather than a Unicode em-dash, and a plain `'` rather than a smart
-  quote. At write time, not when CI complains.
-- [ ] Lists stay sorted: lexer/parser tokens, option declarations, enum values,
-  configure feature lists, documented option lists.
-- [ ] `bin/` scripts are Python (distributed cross-platform); `nodist/` may use
-  bash and platform-specific code (developer-only, not packaged).
-- [ ] Runtime code in `include/` targets C++14 (`--no-timing` builds must work);
-  C++20 only in timing code paths.
-- [ ] In `include/` public headers, prefix public classes with `Verilated`/`Vl`
-  and document the API with `///` comments.
-- [ ] A new code pattern is applied globally or not at all -- no one-off
-  convention in a single file.
-
-## Commits
-
-- Subject line is short and imperative and conventionally ends with the PR number:
-  `Support property case (#7721)`. A body is optional and common for non-trivial
-  changes.

Artistic

@@ -0,0 +1,197 @@
+Artistic License 2.0
+
+Copyright (c) 2000-2006, The Perl Foundation.
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+Preamble
+********
+
+This license establishes the terms under which a given free software
+Package may be copied, modified, distributed, and/or redistributed.  The
+intent is that the Copyright Holder maintains some artistic control over
+the development of that Package while still keeping the Package
+available as open source and free software.
+
+You are always permitted to make arrangements wholly outside of this
+license directly with the Copyright Holder of a given Package.  If the
+terms of this license do not permit the full use that you propose to
+make of the Package, you should contact the Copyright Holder and seek a
+different licensing arrangement.
+
+Definitions
+***********
+
+"Copyright Holder" means the individual(s) or organization(s) named in
+the copyright notice for the entire Package.
+
+"Contributor" means any party that has contributed code or other
+material to the Package, in accordance with the Copyright Holder's
+procedures.
+
+"You" and "your" means any person who would like to copy, distribute, or
+modify the Package.
+
+"Package" means the collection of files distributed by the Copyright
+Holder, and derivatives of that collection and/or of those files.  A
+given Package may consist of either the Standard Version, or a Modified
+Version.
+
+"Distribute" means providing a copy of the Package or making it
+accessible to anyone else, or in the case of a company or organization,
+to others outside of your company or organization.
+
+"Distributor Fee" means any fee that you charge for Distributing this
+Package or providing support for this Package to another party.  It does
+not mean licensing fees.
+
+"Standard Version" refers to the Package if it has not been modified, or
+has been modified only in ways explicitly requested by the Copyright
+Holder.
+
+"Modified Version" means the Package, if it has been changed, and such
+changes were not explicitly requested by the Copyright Holder.
+
+"Original License" means this Artistic License as Distributed with the
+Standard Version of the Package, in its current version or as it may be
+modified by The Perl Foundation in the future.
+
+"Source" form means the source code, documentation source, and
+configuration files for the Package.
+
+"Compiled" form means the compiled bytecode, object code, binary, or any
+other form resulting from mechanical transformation or translation of
+the Source form.
+
+Permission for Use and Modification Without Distribution
+********************************************************
+
+(1) You are permitted to use the Standard Version and create and use
+Modified Versions for any purpose without restriction, provided that you
+do not Distribute the Modified Version.
+
+Permissions for Redistribution of the Standard Version
+******************************************************
+
+(2) You may Distribute verbatim copies of the Source form of the
+Standard Version of this Package in any medium without restriction,
+either gratis or for a Distributor Fee, provided that you duplicate all
+of the original copyright notices and associated disclaimers.  At your
+discretion, such verbatim copies may or may not include a Compiled form
+of the Package.
+
+(3) You may apply any bug fixes, portability changes, and other
+modifications made available from the Copyright Holder.  The resulting
+Package will still be considered the Standard Version, and as such will
+be subject to the Original License.
+
+Distribution of Modified Versions of the Package as Source
+**********************************************************
+
+(4) You may Distribute your Modified Version as Source (either gratis or
+for a Distributor Fee, and with or without a Compiled form of the
+Modified Version) provided that you clearly document how it differs from
+the Standard Version, including, but not limited to, documenting any
+non-standard features, executables, or modules, and provided that you do
+at least ONE of the following:
+
+(a) make the Modified Version available to the Copyright Holder of the
+Standard Version, under the Original License, so that the Copyright
+Holder may include your modifications in the Standard Version.
+
+(b) ensure that installation of your Modified Version does not prevent
+the user installing or running the Standard Version.  In addition, the
+Modified Version must bear a name that is different from the name of the
+Standard Version.
+
+(c) allow anyone who receives a copy of the Modified Version to make the
+Source form of the Modified Version available to others under
+
+(i) the Original License or
+
+(ii) a license that permits the licensee to freely copy, modify and
+redistribute the Modified Version using the same licensing terms that
+apply to the copy that the licensee received, and requires that the
+Source form of the Modified Version, and of any works derived from it,
+be made freely available in that license fees are prohibited but
+Distributor Fees are allowed.
+
+Distribution of Compiled Forms of the Standard Version or Modified
+******************************************************************
+Versions without the Source
+***************************
+
+(5) You may Distribute Compiled forms of the Standard Version without
+the Source, provided that you include complete instructions on how to
+get the Source of the Standard Version.  Such instructions must be valid
+at the time of your distribution.  If these instructions, at any time
+while you are carrying out such distribution, become invalid, you must
+provide new instructions on demand or cease further distribution.  If
+you provide valid instructions or cease distribution within thirty days
+after you become aware that the instructions are invalid, then you do
+not forfeit any of your rights under this license.
+
+(6) You may Distribute a Modified Version in Compiled form without the
+Source, provided that you comply with Section 4 with respect to the
+Source of the Modified Version.
+
+Aggregating or Linking the Package
+**********************************
+
+(7) You may aggregate the Package (either the Standard Version or
+Modified Version) with other packages and Distribute the resulting
+aggregation provided that you do not charge a licensing fee for the
+Package.  Distributor Fees are permitted, and licensing fees for other
+components in the aggregation are permitted.  The terms of this license
+apply to the use and Distribution of the Standard or Modified Versions
+as included in the aggregation.
+
+(8) You are permitted to link Modified and Standard Versions with other
+works, to embed the Package in a larger work of your own, or to build
+stand-alone binary or bytecode versions of applications that include the
+Package, and Distribute the result without restriction, provided the
+result does not expose a direct interface to the Package.
+
+Items That are Not Considered Part of a Modified Version
+********************************************************
+
+(9) Works (including, but not limited to, modules and scripts) that
+merely extend or make use of the Package, do not, by themselves, cause
+the Package to be a Modified Version.  In addition, such works are not
+considered parts of the Package itself, and are not subject to the terms
+of this license.
+
+General Provisions
+******************
+
+(10) Any use, modification, and distribution of the Standard or Modified
+Versions is governed by this Artistic License.  By using, modifying or
+distributing the Package, you accept this license.  Do not use, modify,
+or distribute the Package, if you do not accept this license.
+
+(11) If your Modified Version has been derived from a Modified Version
+made by someone other than you, you are nevertheless required to ensure
+that your Modified Version complies with the requirements of this
+license.
+
+(12) This license does not grant you the right to use any trademark,
+service mark, tradename, or logo of the Copyright Holder.
+
+(13) This license includes the non-exclusive, worldwide, free-of-charge
+patent license to make, have made, use, offer to sell, sell, import and
+otherwise transfer the Package with respect to any patent claims
+licensable by the Copyright Holder that are necessarily infringed by the
+Package.  If you institute patent litigation (including a cross-claim or
+counterclaim) against any party alleging that the Package constitutes
+direct or contributory patent infringement, then this Artistic License
+to you shall terminate on the date that such litigation is filed.
+
+(14) Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT
+HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED
+WARRANTIES.  THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT
+PERMITTED BY YOUR LOCAL LAW.  UNLESS REQUIRED BY LAW, NO COPYRIGHT
+HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE
+OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

CITATION.cff

@@ -1,28 +0,0 @@
----
-# See https://citation-file-format.github.io/
-cff-version: 1.2.0
-title: Verilator
-message: >-
-  If you use this software, please cite it using the
-  metadata from this file.
-type: software
-authors:
-  - given-names: Wilson
-    family-names: Snyder
-    email: [email protected]
-    affiliation: Veripool
-  - given-names: Paul
-    family-names: Wasson
-  - given-names: Duane
-    family-names: Galbi
-  - given-names: Geza
-    family-names: Lore
-  - name: 'et al'
-repository-code: 'https://github.com/verilator/verilator'
-url: 'https://verilator.org'
-abstract: >-
-  The Verilator package converts Verilog and SystemVerilog hardware
-  description language (HDL) designs into a fast C++ or SystemC model
-  that, after compiling, can be executed.  Verilator is not only a
-  traditional simulator but a compiler.
-license: [LGPL-3.0-only, Artistic-2.0]

CMakeLists.txt

@@ -4,102 +4,58 @@
 #
 #*****************************************************************************
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2003-2025 Wilson Snyder
+# Copyright 2003-2023 by Wilson Snyder. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 #
 #****************************************************************************/
 
 cmake_minimum_required(VERSION 3.15)
 cmake_policy(SET CMP0091 NEW) # Use MSVC_RUNTIME_LIBRARY to select the runtime
-project(
-    Verilator
-    VERSION 5.052
+project(Verilator
+    VERSION 5.016
     HOMEPAGE_URL https://verilator.org
     LANGUAGES CXX
 )
 
-# Set default build type to Release if not specified
-if(NOT CMAKE_BUILD_TYPE)
-    set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Build type" FORCE)
-endif()
-
-option(
-    DEBUG_AND_RELEASE_AND_COVERAGE
-    "Builds both the debug and release binaries, overriding CMAKE_BUILD_TYPE. Not supported under MSBuild."
-)
+option(DEBUG_AND_RELEASE_AND_COVERAGE
+    "Builds both the debug and release binaries, overriding CMAKE_BUILD_TYPE. Not supported under MSBuild.")
 
 find_package(Python3 COMPONENTS Interpreter)
-set(PYTHON3 ${Python3_EXECUTABLE})
-# See also CMake built-in; CMAKE_INSTALL_PREFIX is applied by the install command.
-set(CMAKE_INSTALL_DATADIR .)
+set(PYTHON3 Python3::Interpreter)
+set(CMAKE_INSTALL_DATADIR ${CMAKE_INSTALL_PREFIX})
 include(GNUInstallDirs)
 include(CMakePackageConfigHelpers)
 include(CheckStructHasMember)
 include(ExternalProject)
-include(FindThreads)
 
-if(NOT WIN32)
+if (NOT WIN32)
     message(WARNING "CMake support on Linux/OSX is experimental.")
 endif()
 
-if(WIN32)
-    if(DEFINED ENV{WIN_FLEX_BISON})
+if (MSVC)
+    if (DEFINED ENV{WIN_FLEX_BISON})
         set(WIN_FLEX_BISON "$ENV{WIN_FLEX_BISON}")
     endif()
-    if(IS_DIRECTORY ${WIN_FLEX_BISON})
+    if (EXISTS ${WIN_FLEX_BISON})
         list(APPEND CMAKE_PREFIX_PATH ${WIN_FLEX_BISON})
-    else()
-        message(
-            FATAL_ERROR
-            "The path specified by WIN_FLEX_BISON environment variable is not an existing folder: ${WIN_FLEX_BISON}"
-        )
     endif()
-    if(NOT WIN_FLEX_BISON)
-        message(
-            FATAL_ERROR
-            "Please install https://github.com/lexxmark/winflexbison and set WIN_FLEX_BISON environment variable. Please use install cmake target after a successful build."
-        )
+    if (NOT WIN_FLEX_BISON)
+        message(FATAL_ERROR "Please install https://github.com/lexxmark/winflexbison and set WIN_FLEX_BISON environment variable. Please use install cmake target after a successful build.")
     endif()
     set(CMAKE_CXX_STANDARD 20)
 endif()
 
-set(OBJCACHE "" CACHE STRING "Path for ccache, auto-detected if empty")
-option(OBJCACHE_ENABLED "Compile Verilator with ccache" ON)
-
-if(OBJCACHE_ENABLED)
-    if(OBJCACHE STREQUAL "")
-        find_program(OBJCACHE_PATH ccache)
-        if(OBJCACHE_PATH STREQUAL "OBJCACHE_PATH-NOTFOUND")
-            set(OBJCACHE_PATH "")
-        endif()
-    else()
-        set(OBJCACHE_PATH "${OBJCACHE}")
-    endif()
-    if(NOT OBJCACHE_PATH STREQUAL "")
-        execute_process(
-            COMMAND "${OBJCACHE_PATH}" --version
-            OUTPUT_VARIABLE objcache_version
-        )
-        string(REGEX MATCH "[^\n\r]+" objcache_version "${objcache_version}")
-        message(
-            STATUS
-            "Found ccache: ${OBJCACHE_PATH} (\"${objcache_version}\")"
-        )
-        set(CMAKE_CXX_COMPILER_LAUNCHER "${OBJCACHE_PATH}")
-    endif()
-endif()
-
 find_package(BISON)
 find_package(FLEX)
 
 # Build
 #set_property(GLOBAL PROPERTY JOB_POOLS one_job=1)
 
-if(DEBUG_AND_RELEASE_AND_COVERAGE)
-    if(CMAKE_GENERATOR MATCHES "^Visual Studio ")
+if (DEBUG_AND_RELEASE_AND_COVERAGE)
+    if (CMAKE_GENERATOR MATCHES "^Visual Studio ")
         error("%Error: The DEBUG_AND_RELEASE_AND_COVERAGE option is not supported in MSBuild-based builds.")
     endif()
     set(saved_build_type ${CMAKE_BUILD_TYPE})
@@ -118,71 +74,45 @@ endif()
 
 set(PACKAGE_NAME ${PROJECT_NAME})
 set(PACKAGE_VERSION ${PROJECT_VERSION})
-set(CXX ${CMAKE_CXX_COMPILER})
-set(AR ${CMAKE_AR})
 
 configure_file(include/verilated_config.h.in include/verilated_config.h @ONLY)
-configure_file(include/verilated.mk.in include/verilated.mk @ONLY)
 
-install(
-    FILES ${CMAKE_CURRENT_BINARY_DIR}/include/verilated_config.h
-    DESTINATION include
-)
-install(
-    FILES ${CMAKE_CURRENT_BINARY_DIR}/include/verilated.mk
-    DESTINATION include
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/include/verilated_config.h DESTINATION ${CMAKE_INSTALL_PREFIX}/include)
+
+configure_package_config_file(verilator-config.cmake.in verilator-config.cmake
+    INSTALL_DESTINATION ${CMAKE_INSTALL_PREFIX}
 )
 
-configure_package_config_file(
-    verilator-config.cmake.in
-    verilator-config.cmake
-    INSTALL_DESTINATION .
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/verilator-config.cmake DESTINATION ${CMAKE_INSTALL_PREFIX})
+
+configure_package_config_file(verilator-config-version.cmake.in verilator-config-version.cmake
+    INSTALL_DESTINATION ${CMAKE_INSTALL_PREFIX}
 )
 
-install(FILES ${CMAKE_CURRENT_BINARY_DIR}/verilator-config.cmake DESTINATION .)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/verilator-config-version.cmake DESTINATION ${CMAKE_INSTALL_PREFIX})
 
-configure_package_config_file(
-    verilator-config-version.cmake.in
-    verilator-config-version.cmake
-    INSTALL_DESTINATION .
-)
-
-install(
-    FILES ${CMAKE_CURRENT_BINARY_DIR}/verilator-config-version.cmake
-    DESTINATION .
-)
-
-foreach(
-    program
+foreach (program
     verilator
-    verilator_ccache_report
-    verilator_coverage
-    verilator_difftree
     verilator_gantt
-    verilator_includer
+    verilator_ccache_report
+    verilator_difftree
     verilator_profcfunc
 )
     install(PROGRAMS bin/${program} TYPE BIN)
 endforeach()
 
-install(
-    DIRECTORY examples
-    TYPE DATA
-    FILES_MATCHING
+install(DIRECTORY examples TYPE DATA FILES_MATCHING
     PATTERN "examples/*/*.[chv]*"
     PATTERN "examples/*/Makefile*"
     PATTERN "examples/*/CMakeLists.txt"
 )
 
-install(
-    DIRECTORY include
-    TYPE DATA
-    FILES_MATCHING
+install(DIRECTORY include TYPE DATA FILES_MATCHING
     PATTERN "include/verilated_config.h"
+    PATTERN "include/verilated.mk"
     PATTERN "include/*.[chv]"
     PATTERN "include/*.cpp"
-    PATTERN "include/*.vlt"
     PATTERN "include/*.sv"
-    PATTERN "include/fstcpp/*.[chv]*"
+    PATTERN "include/gtkwave/*.[chv]*"
     PATTERN "include/vltstd/*.[chv]*"
 )

LICENSE

@@ -1,304 +1,165 @@
-GNU LESSER GENERAL PUBLIC LICENSE
-Version 3, 29 June 2007
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
 
-Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
 
-Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
 
-This version of the GNU Lesser General Public License incorporates the terms and conditions of version 3 of the GNU General Public License, supplemented by the additional permissions listed below.
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
 
-0. Additional Definitions.
+  0. Additional Definitions.
 
-As used herein, "this License" refers to version 3 of the GNU Lesser General Public License, and the "GNU GPL" refers to version 3 of the GNU General Public License.
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
 
-"The Library" refers to a covered work governed by this License, other than an Application or a Combined Work as defined below.
-
-An "Application" is any work that makes use of an interface provided by the Library, but which is not otherwise based on the Library. Defining a subclass of a class defined by the Library is deemed a mode of using an interface provided by the Library.
-
-A "Combined Work" is a work produced by combining or linking an Application with the Library.  The particular version of the Library with which the Combined Work was made is also called the "Linked Version".
-
-The "Minimal Corresponding Source" for a Combined Work means the Corresponding Source for the Combined Work, excluding any source code for portions of the Combined Work that, considered in isolation, are based on the Application, and not on the Linked Version.
-
-The "Corresponding Application Code" for a Combined Work means the object code and/or source code for the Application, including any data and utility programs needed for reproducing the Combined Work from the Application, but excluding the System Libraries of the Combined Work.
-
-1. Exception to Section 3 of the GNU GPL.
-You may convey a covered work under sections 3 and 4 of this License without being bound by section 3 of the GNU GPL.
-
-2. Conveying Modified Versions.
-If you modify a copy of the Library, and, in your modifications, a facility refers to a function or data to be supplied by an Application that uses the facility (other than as an argument passed when the facility is invoked), then you may convey a copy of the modified version:
-
-     a) under this License, provided that you make a good faith effort to ensure that, in the event an Application does not supply the function or data, the facility still operates, and performs whatever part of its purpose remains meaningful, or
-
-     b) under the GNU GPL, with none of the additional permissions of this License applicable to that copy.
-
-3. Object Code Incorporating Material from Library Header Files.
-The object code form of an Application may incorporate material from a header file that is part of the Library.  You may convey such object code under terms of your choice, provided that, if the incorporated material is not limited to numerical parameters, data structure layouts and accessors, or small macros, inline functions and templates (ten or fewer lines in length), you do both of the following:
-
-     a) Give prominent notice with each copy of the object code that the Library is used in it and that the Library and its use are covered by this License.
-
-     b) Accompany the object code with a copy of the GNU GPL and this license document.
-
-4. Combined Works.
-You may convey a Combined Work under terms of your choice that, taken together, effectively do not restrict modification of the portions of the Library contained in the Combined Work and reverse engineering for debugging such modifications, if you also do each of the following:
-
-     a) Give prominent notice with each copy of the Combined Work that the Library is used in it and that the Library and its use are covered by this License.
-
-     b) Accompany the Combined Work with a copy of the GNU GPL and this license document.
-
-     c) For a Combined Work that displays copyright notices during execution, include the copyright notice for the Library among these notices, as well as a reference directing the user to the copies of the GNU GPL and this license document.
-
-     d) Do one of the following:
-
-           0) Convey the Minimal Corresponding Source under the terms of this License, and the Corresponding Application Code in a form suitable for, and under terms that permit, the user to recombine or relink the Application with a modified version of the Linked Version to produce a modified Combined Work, in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source.
-
-          1) Use a suitable shared library mechanism for linking with the Library.  A suitable mechanism is one that (a) uses at run time a copy of the Library already present on the user's computer system, and (b) will operate properly with a modified version of the Library that is interface-compatible with the Linked Version.
-
-     e) Provide Installation Information, but only if you would otherwise be required to provide such information under section 6 of the GNU GPL, and only to the extent that such information is necessary to install and execute a modified version of the Combined Work produced by recombining or relinking the Application with a modified version of the Linked Version. (If you use option 4d0, the Installation Information must accompany the Minimal Corresponding Source and Corresponding Application Code. If you use option 4d1, you must provide the Installation Information in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source.)
-
-5. Combined Libraries.
-You may place library facilities that are a work based on the Library side by side in a single library together with other library facilities that are not Applications and are not covered by this License, and convey such a combined library under terms of your choice, if you do both of the following:
-
-     a) Accompany the combined library with a copy of the same work based on the Library, uncombined with any other library facilities, conveyed under the terms of this License.
-
-     b) Give prominent notice with the combined library that part of it is a work based on the Library, and explaining where to find the accompanying uncombined form of the same work.
-
-6. Revised Versions of the GNU Lesser General Public License.
-The Free Software Foundation may publish revised and/or new versions of the GNU Lesser General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
-
-Each version is given a distinguishing version number. If the Library as you received it specifies that a certain numbered version of the GNU Lesser General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that published version or of any later version published by the Free Software Foundation. If the Library as you received it does not specify a version number of the GNU Lesser General Public License, you may choose any version of the GNU Lesser General Public License ever published by the Free Software Foundation.
-
-If the Library as you received it specifies that a proxy can decide whether future versions of the GNU Lesser General Public License shall
-apply, that proxy's public statement of acceptance of any version is permanent authorization for you to choose that version for the Library.
-
-GNU GENERAL PUBLIC LICENSE
-Version 3, 29 June 2007
-
-Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>
-
-Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
-
-Preamble
-
-The GNU General Public License is a free, copyleft license for software and other kinds of works.
-
-The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too.
-
-When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things.
-
-To protect your rights, we need to prevent others from denying you these rights or asking you to surrender the rights. Therefore, you have certain responsibilities if you distribute copies of the software, or if you modify it: responsibilities to respect the freedom of others.
-
-For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that you received. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights.
-
-Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License giving you legal permission to copy, distribute and/or modify it.
-
-For the developers' and authors' protection, the GPL clearly explains that there is no warranty for this free software. For both users' and authors' sake, the GPL requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions.
-
-Some devices are designed to deny users access to install or run modified versions of the software inside them, although the manufacturer can do so. This is fundamentally incompatible with the aim of protecting users' freedom to change the software. The systematic pattern of such abuse occurs in the area of products for individuals to use, which is precisely where it is most unacceptable. Therefore, we have designed this version of the GPL to prohibit the practice for those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in future versions of the GPL, as needed to protect the freedom of users.
-
-Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary. To prevent this, the GPL assures that patents cannot be used to render the program non-free.
-
-The precise terms and conditions for copying, distribution and modification follow.
-
-TERMS AND CONDITIONS
-
-0. Definitions.
-
-“This License” refers to version 3 of the GNU General Public License.
-
-“Copyright” also means copyright-like laws that apply to other kinds of works, such as semiconductor masks.
-
-“The Program” refers to any copyrightable work licensed under this License. Each licensee is addressed as “you”. “Licensees” and “recipients” may be individuals or organizations.
-
-To “modify” a work means to copy from or adapt all or part of the work in a fashion requiring copyright permission, other than the making of an exact copy. The resulting work is called a “modified version” of the earlier work or a work “based on” the earlier work.
-
-A “covered work” means either the unmodified Program or a work based on the Program.
-
-To “propagate” a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement under applicable copyright law, except executing it on a computer or modifying a private copy. Propagation includes copying, distribution (with or without modification), making available to the public, and in some countries other activities as well.
-
-To “convey” a work means any kind of propagation that enables other parties to make or receive copies. Mere interaction with a user through a computer network, with no transfer of a copy, is not conveying.
-
-An interactive user interface displays “Appropriate Legal Notices” to the extent that it includes a convenient and prominently visible feature that (1) displays an appropriate copyright notice, and (2) tells the user that there is no warranty for the work (except to the extent that warranties are provided), that licensees may convey the work under this License, and how to view a copy of this License. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list meets this criterion.
-
-1. Source Code.
-The “source code” for a work means the preferred form of the work for making modifications to it. “Object code” means any non-source form of a work.
-
-A “Standard Interface” means an interface that either is an official standard defined by a recognized standards body, or, in the case of interfaces specified for a particular programming language, one that is widely used among developers working in that language.
-
-The “System Libraries” of an executable work include anything, other than the work as a whole, that (a) is included in the normal form of packaging a Major Component, but which is not part of that Major Component, and (b) serves only to enable use of the work with that Major Component, or to implement a Standard Interface for which an implementation is available to the public in source code form. A “Major Component”, in this context, means a major essential component (kernel, window system, and so on) of the specific operating system (if any) on which the executable work runs, or a compiler used to produce the work, or an object code interpreter used to run it.
-
-The “Corresponding Source” for a work in object code form means all the source code needed to generate, install, and (for an executable work) run the object code and to modify the work, including scripts to control those activities. However, it does not include the work's System Libraries, or general-purpose tools or generally available free programs which are used unmodified in performing those activities but which are not part of the work. For example, Corresponding Source includes interface definition files associated with source files for the work, and the source code for shared libraries and dynamically linked subprograms that the work is specifically designed to require, such as by intimate data communication or control flow between those subprograms and other parts of the work.
-
-The Corresponding Source need not include anything that users can regenerate automatically from other parts of the Corresponding Source.
-
-The Corresponding Source for a work in source code form is that same work.
-
-2. Basic Permissions.
-All rights granted under this License are granted for the term of copyright on the Program, and are irrevocable provided the stated conditions are met. This License explicitly affirms your unlimited permission to run the unmodified Program. The output from running a covered work is covered by this License only if the output, given its content, constitutes a covered work. This License acknowledges your rights of fair use or other equivalent, as provided by copyright law.
-
-You may make, run and propagate covered works that you do not convey, without conditions so long as your license otherwise remains in force. You may convey covered works to others for the sole purpose of having them make modifications exclusively for you, or provide you with facilities for running those works, provided that you comply with the terms of this License in conveying all material for which you do not control copyright. Those thus making or running the covered works for you must do so exclusively on your behalf, under your direction and control, on terms that prohibit them from making any copies of your copyrighted material outside their relationship with you.
-
-Conveying under any other circumstances is permitted solely under the conditions stated below. Sublicensing is not allowed; section 10 makes it unnecessary.
-
-3. Protecting Users' Legal Rights From Anti-Circumvention Law.
-No covered work shall be deemed part of an effective technological measure under any applicable law fulfilling obligations under article 11 of the WIPO copyright treaty adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention of such measures.
-
-When you convey a covered work, you waive any legal power to forbid circumvention of technological measures to the extent such circumvention is effected by exercising rights under this License with respect to the covered work, and you disclaim any intention to limit operation or modification of the work as a means of enforcing, against the work's users, your or third parties' legal rights to forbid circumvention of technological measures.
-
-4. Conveying Verbatim Copies.
-You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program.
-
-You may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee.
-
-5. Conveying Modified Source Versions.
-You may convey a work based on the Program, or the modifications to produce it from the Program, in the form of source code under the terms of section 4, provided that you also meet all of these conditions:
-
-     a) The work must carry prominent notices stating that you modified it, and giving a relevant date.
-
-     b) The work must carry prominent notices stating that it is released under this License and any conditions added under section 7. This requirement modifies the requirement in section 4 to “keep intact all notices”.
-
-     c) You must license the entire work, as a whole, under this License to anyone who comes into possession of a copy. This License will therefore apply, along with any applicable section 7 additional terms, to the whole of the work, and all its parts, regardless of how they are packaged. This License gives no permission to license the work in any other way, but it does not invalidate such permission if you have separately received it.
-
-     d) If the work has interactive user interfaces, each must display Appropriate Legal Notices; however, if the Program has interactive interfaces that do not display Appropriate Legal Notices, your work need not make them do so.
-
-A compilation of a covered work with other separate and independent works, which are not by their nature extensions of the covered work, and which are not combined with it such as to form a larger program, in or on a volume of a storage or distribution medium, is called an “aggregate” if the compilation and its resulting copyright are not used to limit the access or legal rights of the compilation's users beyond what the individual works permit. Inclusion of a covered work in an aggregate does not cause this License to apply to the other parts of the aggregate.
-
-6. Conveying Non-Source Forms.
-You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways:
-
-     a) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by the Corresponding Source fixed on a durable physical medium customarily used for software interchange.
-
-     b) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by a written offer, valid for at least three years and valid for as long as you offer spare parts or customer support for that product model, to give anyone who possesses the object code either (1) a copy of the Corresponding Source for all the software in the product that is covered by this License, on a durable physical medium customarily used for software interchange, for a price no more than your reasonable cost of physically performing this conveying of source, or (2) access to copy the Corresponding Source from a network server at no charge.
-
-     c) Convey individual copies of the object code with a copy of the written offer to provide the Corresponding Source. This alternative is allowed only occasionally and noncommercially, and only if you received the object code with such an offer, in accord with subsection 6b.
-
-     d) Convey the object code by offering access from a designated place (gratis or for a charge), and offer equivalent access to the Corresponding Source in the same way through the same place at no further charge. You need not require recipients to copy the Corresponding Source along with the object code. If the place to copy the object code is a network server, the Corresponding Source may be on a different server (operated by you or a third party) that supports equivalent copying facilities, provided you maintain clear directions next to the object code saying where to find the Corresponding Source. Regardless of what server hosts the Corresponding Source, you remain obligated to ensure that it is available for as long as needed to satisfy these requirements.
-
-     e) Convey the object code using peer-to-peer transmission, provided you inform other peers where the object code and Corresponding Source of the work are being offered to the general public at no charge under subsection 6d.
-
-A separable portion of the object code, whose source code is excluded from the Corresponding Source as a System Library, need not be included in conveying the object code work.
-
-A “User Product” is either (1) a “consumer product”, which means any tangible personal property which is normally used for personal, family, or household purposes, or (2) anything designed or sold for incorporation into a dwelling. In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. For a particular product received by a particular user, “normally used” refers to a typical or common use of that class of product, regardless of the status of the particular user or of the way in which the particular user actually uses, or expects or is expected to use, the product. A product is a consumer product regardless of whether the product has substantial commercial, industrial or non-consumer uses, unless such uses represent the only significant mode of use of the product.
-
-“Installation Information” for a User Product means any methods, procedures, authorization keys, or other information required to install and execute modified versions of a covered work in that User Product from a modified version of its Corresponding Source. The information must suffice to ensure that the continued functioning of the modified object code is in no case prevented or interfered with solely because modification has been made.
-
-If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM).
-
-The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network.
-
-Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying.
-
-7. Additional Terms.
-“Additional permissions” are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions.
-
-When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission.
-
-Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms:
-
-     a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or
-
-     b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or
-
-     c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or
-
-     d) Limiting the use for publicity purposes of names of licensors or authors of the material; or
-
-     e) Declining to grant rights under trademark law for use of some trade names, trademarks, or service marks; or
-
-     f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors.
-
-All other non-permissive additional terms are considered “further restrictions” within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying.
-
-If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms.
-
-Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way.
-
-8. Termination.
-You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11).
-
-However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation.
-
-Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice.
-
-Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10.
-
-9. Acceptance Not Required for Having Copies.
-You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so.
-
-10. Automatic Licensing of Downstream Recipients.
-Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License.
-
-An “entity transaction” is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts.
-
-You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it.
-
-11. Patents.
-A “contributor” is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's “contributor version”.
-
-A contributor's “essential patent claims” are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, “control” includes the right to grant patent sublicenses in a manner consistent with the requirements of this License.
-
-Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version.
-
-In the following three paragraphs, a “patent license” is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To “grant” such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party.
-
-If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. “Knowingly relying” means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid.
-
-If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it.
-
-A patent license is “discriminatory” if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007.
-
-Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law.
-
-12. No Surrender of Others' Freedom.
-If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program.
-
-13. Use with the GNU Affero General Public License.
-Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such.
-
-14. Revised Versions of this License.
-The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
-
-Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License “or any later version” applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation.
-
-If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.
-
-Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.
-
-15. Disclaimer of Warranty.
-THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-16. Limitation of Liability.
-IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
-
-17. Interpretation of Sections 15 and 16.
-If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.
-
-END OF TERMS AND CONDITIONS
-
-How to Apply These Terms to Your New Programs
-
-If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.
-
-To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the “copyright” line and a pointer to where the full notice is found.
-
-     <one line to give the program's name and a brief idea of what it does.>
-     Copyright (C) <year>  <name of author>
-
-     This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
-
-     This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-     You should have received a copy of the GNU General Public License along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode:
-
-     <program>  Copyright (C) <year>  <name of author>
-     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-     This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an “about box”.
-
-You should also get your employer (if you work as a programmer) or school, if any, to sign a “copyright disclaimer” for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see <http://www.gnu.org/licenses/>.
-
-The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.

LICENSES/Apache-2.0.txt

@@ -1,73 +0,0 @@
-Apache License
-Version 2.0, January 2004
-http://www.apache.org/licenses/
-
-TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-1. Definitions.
-
-"License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document.
-
-"Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License.
-
-"Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity.
-
-"You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License.
-
-"Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files.
-
-"Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types.
-
-"Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below).
-
-"Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof.
-
-"Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution."
-
-"Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work.
-
-2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.
-
-3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.
-
-4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions:
-
-     (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and
-
-     (b) You must cause any modified files to carry prominent notices stating that You changed the files; and
-
-     (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and
-
-     (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License.
-
-     You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License.
-
-5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions.
-
-6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file.
-
-7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License.
-
-8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages.
-
-9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.
-
-END OF TERMS AND CONDITIONS
-
-APPENDIX: How to apply the Apache License to your work.
-
-To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!)  The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives.
-
-Copyright [yyyy] [name of copyright owner]
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.

LICENSES/Artistic-2.0.txt

@@ -1,85 +0,0 @@
-The Artistic License 2.0
-
-Copyright (c) 2000-2006, The Perl Foundation.
-
-Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
-
-Preamble
-
-This license establishes the terms under which a given free software Package may be copied, modified, distributed, and/or redistributed. The intent is that the Copyright Holder maintains some artistic control over the development of that Package while still keeping the Package available as open source and free software.
-
-You are always permitted to make arrangements wholly outside of this license directly with the Copyright Holder of a given Package.  If the terms of this license do not permit the full use that you propose to make of the Package, you should contact the Copyright Holder and seek a different licensing arrangement.
-
-Definitions
-
-     "Copyright Holder" means the individual(s) or organization(s) named in the copyright notice for the entire Package.
-
-     "Contributor" means any party that has contributed code or other material to the Package, in accordance with the Copyright Holder's procedures.
-
-     "You" and "your" means any person who would like to copy, distribute, or modify the Package.
-
-     "Package" means the collection of files distributed by the Copyright Holder, and derivatives of that collection and/or of those files. A given Package may consist of either the Standard Version, or a Modified Version.
-
-     "Distribute" means providing a copy of the Package or making it accessible to anyone else, or in the case of a company or organization, to others outside of your company or organization.
-
-     "Distributor Fee" means any fee that you charge for Distributing this Package or providing support for this Package to another party.  It does not mean licensing fees.
-
-     "Standard Version" refers to the Package if it has not been modified, or has been modified only in ways explicitly requested by the Copyright Holder.
-
-     "Modified Version" means the Package, if it has been changed, and such changes were not explicitly requested by the Copyright Holder.
-
-     "Original License" means this Artistic License as Distributed with the Standard Version of the Package, in its current version or as it may be modified by The Perl Foundation in the future.
-
-     "Source" form means the source code, documentation source, and configuration files for the Package.
-
-     "Compiled" form means the compiled bytecode, object code, binary, or any other form resulting from mechanical transformation or translation of the Source form.
-
-Permission for Use and Modification Without Distribution
-
-(1) You are permitted to use the Standard Version and create and use Modified Versions for any purpose without restriction, provided that you do not Distribute the Modified Version.
-
-Permissions for Redistribution of the Standard Version
-
-(2) You may Distribute verbatim copies of the Source form of the Standard Version of this Package in any medium without restriction, either gratis or for a Distributor Fee, provided that you duplicate all of the original copyright notices and associated disclaimers.  At your discretion, such verbatim copies may or may not include a Compiled form of the Package.
-
-(3) You may apply any bug fixes, portability changes, and other modifications made available from the Copyright Holder.  The resulting Package will still be considered the Standard Version, and as such will be subject to the Original License.
-
-Distribution of Modified Versions of the Package as Source
-
-(4) You may Distribute your Modified Version as Source (either gratis or for a Distributor Fee, and with or without a Compiled form of the Modified Version) provided that you clearly document how it differs from the Standard Version, including, but not limited to, documenting any non-standard features, executables, or modules, and provided that you do at least ONE of the following:
-
-     (a) make the Modified Version available to the Copyright Holder of the Standard Version, under the Original License, so that the Copyright Holder may include your modifications in the Standard Version.
-     (b) ensure that installation of your Modified Version does not prevent the user installing or running the Standard Version. In addition, the Modified Version must bear a name that is different from the name of the Standard Version.
-     (c) allow anyone who receives a copy of the Modified Version to make the Source form of the Modified Version available to others under
-
-          (i) the Original License or
-          (ii) a license that permits the licensee to freely copy, modify and redistribute the Modified Version using the same licensing terms that apply to the copy that the licensee received, and requires that the Source form of the Modified Version, and of any works derived from it, be made freely available in that license fees are prohibited but Distributor Fees are allowed.
-
-Distribution of Compiled Forms of the Standard Version or Modified Versions without the Source
-
-(5)  You may Distribute Compiled forms of the Standard Version without the Source, provided that you include complete instructions on how to get the Source of the Standard Version.  Such instructions must be valid at the time of your distribution.  If these instructions, at any time while you are carrying out such distribution, become invalid, you must provide new instructions on demand or cease further distribution. If you provide valid instructions or cease distribution within thirty days after you become aware that the instructions are invalid, then you do not forfeit any of your rights under this license.
-
-(6)  You may Distribute a Modified Version in Compiled form without the Source, provided that you comply with Section 4 with respect to the Source of the Modified Version.
-
-Aggregating or Linking the Package
-
-(7)  You may aggregate the Package (either the Standard Version or Modified Version) with other packages and Distribute the resulting aggregation provided that you do not charge a licensing fee for the Package.  Distributor Fees are permitted, and licensing fees for other components in the aggregation are permitted. The terms of this license apply to the use and Distribution of the Standard or Modified Versions as included in the aggregation.
-
-(8) You are permitted to link Modified and Standard Versions with other works, to embed the Package in a larger work of your own, or to build stand-alone binary or bytecode versions of applications that include the Package, and Distribute the result without restriction, provided the result does not expose a direct interface to the Package.
-
-Items That are Not Considered Part of a Modified Version
-
-(9) Works (including, but not limited to, modules and scripts) that merely extend or make use of the Package, do not, by themselves, cause the Package to be a Modified Version.  In addition, such works are not considered parts of the Package itself, and are not subject to the terms of this license.
-
-General Provisions
-
-(10)  Any use, modification, and distribution of the Standard or Modified Versions is governed by this Artistic License. By using, modifying or distributing the Package, you accept this license. Do not use, modify, or distribute the Package, if you do not accept this license.
-
-(11)  If your Modified Version has been derived from a Modified Version made by someone other than you, you are nevertheless required to ensure that your Modified Version complies with the requirements of this license.
-
-(12)  This license does not grant you the right to use any trademark, service mark, tradename, or logo of the Copyright Holder.
-
-(13)  This license includes the non-exclusive, worldwide, free-of-charge patent license to make, have made, use, offer to sell, sell, import and otherwise transfer the Package with respect to any patent claims licensable by the Copyright Holder that are necessarily infringed by the Package. If you institute patent litigation (including a cross-claim or counterclaim) against any party alleging that the Package constitutes direct or contributory patent infringement, then this Artistic License to you shall terminate on the date that such litigation is filed.
-
-(14)  Disclaimer of Warranty:
-THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

LICENSES/BSD-3-Clause.txt

@@ -1,11 +0,0 @@
-Copyright (c) <year> <owner>.
-
-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
-
-3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

LICENSES/CC0-1.0.txt

@@ -1,121 +0,0 @@
-Creative Commons Legal Code
-
-CC0 1.0 Universal
-
-    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
-    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
-    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
-    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
-    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
-    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
-    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
-    HEREUNDER.
-
-Statement of Purpose
-
-The laws of most jurisdictions throughout the world automatically confer
-exclusive Copyright and Related Rights (defined below) upon the creator
-and subsequent owner(s) (each and all, an "owner") of an original work of
-authorship and/or a database (each, a "Work").
-
-Certain owners wish to permanently relinquish those rights to a Work for
-the purpose of contributing to a commons of creative, cultural and
-scientific works ("Commons") that the public can reliably and without fear
-of later claims of infringement build upon, modify, incorporate in other
-works, reuse and redistribute as freely as possible in any form whatsoever
-and for any purposes, including without limitation commercial purposes.
-These owners may contribute to the Commons to promote the ideal of a free
-culture and the further production of creative, cultural and scientific
-works, or to gain reputation or greater distribution for their Work in
-part through the use and efforts of others.
-
-For these and/or other purposes and motivations, and without any
-expectation of additional consideration or compensation, the person
-associating CC0 with a Work (the "Affirmer"), to the extent that he or she
-is an owner of Copyright and Related Rights in the Work, voluntarily
-elects to apply CC0 to the Work and publicly distribute the Work under its
-terms, with knowledge of his or her Copyright and Related Rights in the
-Work and the meaning and intended legal effect of CC0 on those rights.
-
-1. Copyright and Related Rights. A Work made available under CC0 may be
-protected by copyright and related or neighboring rights ("Copyright and
-Related Rights"). Copyright and Related Rights include, but are not
-limited to, the following:
-
-  i. the right to reproduce, adapt, distribute, perform, display,
-     communicate, and translate a Work;
- ii. moral rights retained by the original author(s) and/or performer(s);
-iii. publicity and privacy rights pertaining to a person's image or
-     likeness depicted in a Work;
- iv. rights protecting against unfair competition in regards to a Work,
-     subject to the limitations in paragraph 4(a), below;
-  v. rights protecting the extraction, dissemination, use and reuse of data
-     in a Work;
- vi. database rights (such as those arising under Directive 96/9/EC of the
-     European Parliament and of the Council of 11 March 1996 on the legal
-     protection of databases, and under any national implementation
-     thereof, including any amended or successor version of such
-     directive); and
-vii. other similar, equivalent or corresponding rights throughout the
-     world based on applicable law or treaty, and any national
-     implementations thereof.
-
-2. Waiver. To the greatest extent permitted by, but not in contravention
-of, applicable law, Affirmer hereby overtly, fully, permanently,
-irrevocably and unconditionally waives, abandons, and surrenders all of
-Affirmer's Copyright and Related Rights and associated claims and causes
-of action, whether now known or unknown (including existing as well as
-future claims and causes of action), in the Work (i) in all territories
-worldwide, (ii) for the maximum duration provided by applicable law or
-treaty (including future time extensions), (iii) in any current or future
-medium and for any number of copies, and (iv) for any purpose whatsoever,
-including without limitation commercial, advertising or promotional
-purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
-member of the public at large and to the detriment of Affirmer's heirs and
-successors, fully intending that such Waiver shall not be subject to
-revocation, rescission, cancellation, termination, or any other legal or
-equitable action to disrupt the quiet enjoyment of the Work by the public
-as contemplated by Affirmer's express Statement of Purpose.
-
-3. Public License Fallback. Should any part of the Waiver for any reason
-be judged legally invalid or ineffective under applicable law, then the
-Waiver shall be preserved to the maximum extent permitted taking into
-account Affirmer's express Statement of Purpose. In addition, to the
-extent the Waiver is so judged Affirmer hereby grants to each affected
-person a royalty-free, non transferable, non sublicensable, non exclusive,
-irrevocable and unconditional license to exercise Affirmer's Copyright and
-Related Rights in the Work (i) in all territories worldwide, (ii) for the
-maximum duration provided by applicable law or treaty (including future
-time extensions), (iii) in any current or future medium and for any number
-of copies, and (iv) for any purpose whatsoever, including without
-limitation commercial, advertising or promotional purposes (the
-"License"). The License shall be deemed effective as of the date CC0 was
-applied by Affirmer to the Work. Should any part of the License for any
-reason be judged legally invalid or ineffective under applicable law, such
-partial invalidity or ineffectiveness shall not invalidate the remainder
-of the License, and in such case Affirmer hereby affirms that he or she
-will not (i) exercise any of his or her remaining Copyright and Related
-Rights in the Work or (ii) assert any associated claims and causes of
-action with respect to the Work, in either case contrary to Affirmer's
-express Statement of Purpose.
-
-4. Limitations and Disclaimers.
-
- a. No trademark or patent rights held by Affirmer are waived, abandoned,
-    surrendered, licensed or otherwise affected by this document.
- b. Affirmer offers the Work as-is and makes no representations or
-    warranties of any kind concerning the Work, express, implied,
-    statutory or otherwise, including without limitation warranties of
-    title, merchantability, fitness for a particular purpose, non
-    infringement, or the absence of latent or other defects, accuracy, or
-    the present or absence of errors, whether or not discoverable, all to
-    the greatest extent permissible under applicable law.
- c. Affirmer disclaims responsibility for clearing rights of other persons
-    that may apply to the Work or any use thereof, including without
-    limitation any person's Copyright and Related Rights in the Work.
-    Further, Affirmer disclaims responsibility for obtaining any necessary
-    consents, permissions or other rights required for any use of the
-    Work.
- d. Affirmer understands and acknowledges that Creative Commons is not a
-    party to this document and has no duty or obligation with respect to
-    this CC0 or use of the Work.

LICENSES/ISC.txt

@@ -1,8 +0,0 @@
-ISC License:
-
-Copyright (c) 2004-2010 by Internet Systems Consortium, Inc. ("ISC")
-Copyright (c) 1995-2003 by Internet Software Consortium
-
-Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

LICENSES/LGPL-3.0-only.txt

@@ -1,304 +0,0 @@
-GNU LESSER GENERAL PUBLIC LICENSE
-Version 3, 29 June 2007
-
-Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
-
-Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
-
-This version of the GNU Lesser General Public License incorporates the terms and conditions of version 3 of the GNU General Public License, supplemented by the additional permissions listed below.
-
-0. Additional Definitions.
-
-As used herein, "this License" refers to version 3 of the GNU Lesser General Public License, and the "GNU GPL" refers to version 3 of the GNU General Public License.
-
-"The Library" refers to a covered work governed by this License, other than an Application or a Combined Work as defined below.
-
-An "Application" is any work that makes use of an interface provided by the Library, but which is not otherwise based on the Library. Defining a subclass of a class defined by the Library is deemed a mode of using an interface provided by the Library.
-
-A "Combined Work" is a work produced by combining or linking an Application with the Library.  The particular version of the Library with which the Combined Work was made is also called the "Linked Version".
-
-The "Minimal Corresponding Source" for a Combined Work means the Corresponding Source for the Combined Work, excluding any source code for portions of the Combined Work that, considered in isolation, are based on the Application, and not on the Linked Version.
-
-The "Corresponding Application Code" for a Combined Work means the object code and/or source code for the Application, including any data and utility programs needed for reproducing the Combined Work from the Application, but excluding the System Libraries of the Combined Work.
-
-1. Exception to Section 3 of the GNU GPL.
-You may convey a covered work under sections 3 and 4 of this License without being bound by section 3 of the GNU GPL.
-
-2. Conveying Modified Versions.
-If you modify a copy of the Library, and, in your modifications, a facility refers to a function or data to be supplied by an Application that uses the facility (other than as an argument passed when the facility is invoked), then you may convey a copy of the modified version:
-
-     a) under this License, provided that you make a good faith effort to ensure that, in the event an Application does not supply the function or data, the facility still operates, and performs whatever part of its purpose remains meaningful, or
-
-     b) under the GNU GPL, with none of the additional permissions of this License applicable to that copy.
-
-3. Object Code Incorporating Material from Library Header Files.
-The object code form of an Application may incorporate material from a header file that is part of the Library.  You may convey such object code under terms of your choice, provided that, if the incorporated material is not limited to numerical parameters, data structure layouts and accessors, or small macros, inline functions and templates (ten or fewer lines in length), you do both of the following:
-
-     a) Give prominent notice with each copy of the object code that the Library is used in it and that the Library and its use are covered by this License.
-
-     b) Accompany the object code with a copy of the GNU GPL and this license document.
-
-4. Combined Works.
-You may convey a Combined Work under terms of your choice that, taken together, effectively do not restrict modification of the portions of the Library contained in the Combined Work and reverse engineering for debugging such modifications, if you also do each of the following:
-
-     a) Give prominent notice with each copy of the Combined Work that the Library is used in it and that the Library and its use are covered by this License.
-
-     b) Accompany the Combined Work with a copy of the GNU GPL and this license document.
-
-     c) For a Combined Work that displays copyright notices during execution, include the copyright notice for the Library among these notices, as well as a reference directing the user to the copies of the GNU GPL and this license document.
-
-     d) Do one of the following:
-
-           0) Convey the Minimal Corresponding Source under the terms of this License, and the Corresponding Application Code in a form suitable for, and under terms that permit, the user to recombine or relink the Application with a modified version of the Linked Version to produce a modified Combined Work, in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source.
-
-          1) Use a suitable shared library mechanism for linking with the Library.  A suitable mechanism is one that (a) uses at run time a copy of the Library already present on the user's computer system, and (b) will operate properly with a modified version of the Library that is interface-compatible with the Linked Version.
-
-     e) Provide Installation Information, but only if you would otherwise be required to provide such information under section 6 of the GNU GPL, and only to the extent that such information is necessary to install and execute a modified version of the Combined Work produced by recombining or relinking the Application with a modified version of the Linked Version. (If you use option 4d0, the Installation Information must accompany the Minimal Corresponding Source and Corresponding Application Code. If you use option 4d1, you must provide the Installation Information in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source.)
-
-5. Combined Libraries.
-You may place library facilities that are a work based on the Library side by side in a single library together with other library facilities that are not Applications and are not covered by this License, and convey such a combined library under terms of your choice, if you do both of the following:
-
-     a) Accompany the combined library with a copy of the same work based on the Library, uncombined with any other library facilities, conveyed under the terms of this License.
-
-     b) Give prominent notice with the combined library that part of it is a work based on the Library, and explaining where to find the accompanying uncombined form of the same work.
-
-6. Revised Versions of the GNU Lesser General Public License.
-The Free Software Foundation may publish revised and/or new versions of the GNU Lesser General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
-
-Each version is given a distinguishing version number. If the Library as you received it specifies that a certain numbered version of the GNU Lesser General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that published version or of any later version published by the Free Software Foundation. If the Library as you received it does not specify a version number of the GNU Lesser General Public License, you may choose any version of the GNU Lesser General Public License ever published by the Free Software Foundation.
-
-If the Library as you received it specifies that a proxy can decide whether future versions of the GNU Lesser General Public License shall
-apply, that proxy's public statement of acceptance of any version is permanent authorization for you to choose that version for the Library.
-
-GNU GENERAL PUBLIC LICENSE
-Version 3, 29 June 2007
-
-Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>
-
-Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
-
-Preamble
-
-The GNU General Public License is a free, copyleft license for software and other kinds of works.
-
-The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too.
-
-When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things.
-
-To protect your rights, we need to prevent others from denying you these rights or asking you to surrender the rights. Therefore, you have certain responsibilities if you distribute copies of the software, or if you modify it: responsibilities to respect the freedom of others.
-
-For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that you received. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights.
-
-Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License giving you legal permission to copy, distribute and/or modify it.
-
-For the developers' and authors' protection, the GPL clearly explains that there is no warranty for this free software. For both users' and authors' sake, the GPL requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions.
-
-Some devices are designed to deny users access to install or run modified versions of the software inside them, although the manufacturer can do so. This is fundamentally incompatible with the aim of protecting users' freedom to change the software. The systematic pattern of such abuse occurs in the area of products for individuals to use, which is precisely where it is most unacceptable. Therefore, we have designed this version of the GPL to prohibit the practice for those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in future versions of the GPL, as needed to protect the freedom of users.
-
-Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary. To prevent this, the GPL assures that patents cannot be used to render the program non-free.
-
-The precise terms and conditions for copying, distribution and modification follow.
-
-TERMS AND CONDITIONS
-
-0. Definitions.
-
-“This License” refers to version 3 of the GNU General Public License.
-
-“Copyright” also means copyright-like laws that apply to other kinds of works, such as semiconductor masks.
-
-“The Program” refers to any copyrightable work licensed under this License. Each licensee is addressed as “you”. “Licensees” and “recipients” may be individuals or organizations.
-
-To “modify” a work means to copy from or adapt all or part of the work in a fashion requiring copyright permission, other than the making of an exact copy. The resulting work is called a “modified version” of the earlier work or a work “based on” the earlier work.
-
-A “covered work” means either the unmodified Program or a work based on the Program.
-
-To “propagate” a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement under applicable copyright law, except executing it on a computer or modifying a private copy. Propagation includes copying, distribution (with or without modification), making available to the public, and in some countries other activities as well.
-
-To “convey” a work means any kind of propagation that enables other parties to make or receive copies. Mere interaction with a user through a computer network, with no transfer of a copy, is not conveying.
-
-An interactive user interface displays “Appropriate Legal Notices” to the extent that it includes a convenient and prominently visible feature that (1) displays an appropriate copyright notice, and (2) tells the user that there is no warranty for the work (except to the extent that warranties are provided), that licensees may convey the work under this License, and how to view a copy of this License. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list meets this criterion.
-
-1. Source Code.
-The “source code” for a work means the preferred form of the work for making modifications to it. “Object code” means any non-source form of a work.
-
-A “Standard Interface” means an interface that either is an official standard defined by a recognized standards body, or, in the case of interfaces specified for a particular programming language, one that is widely used among developers working in that language.
-
-The “System Libraries” of an executable work include anything, other than the work as a whole, that (a) is included in the normal form of packaging a Major Component, but which is not part of that Major Component, and (b) serves only to enable use of the work with that Major Component, or to implement a Standard Interface for which an implementation is available to the public in source code form. A “Major Component”, in this context, means a major essential component (kernel, window system, and so on) of the specific operating system (if any) on which the executable work runs, or a compiler used to produce the work, or an object code interpreter used to run it.
-
-The “Corresponding Source” for a work in object code form means all the source code needed to generate, install, and (for an executable work) run the object code and to modify the work, including scripts to control those activities. However, it does not include the work's System Libraries, or general-purpose tools or generally available free programs which are used unmodified in performing those activities but which are not part of the work. For example, Corresponding Source includes interface definition files associated with source files for the work, and the source code for shared libraries and dynamically linked subprograms that the work is specifically designed to require, such as by intimate data communication or control flow between those subprograms and other parts of the work.
-
-The Corresponding Source need not include anything that users can regenerate automatically from other parts of the Corresponding Source.
-
-The Corresponding Source for a work in source code form is that same work.
-
-2. Basic Permissions.
-All rights granted under this License are granted for the term of copyright on the Program, and are irrevocable provided the stated conditions are met. This License explicitly affirms your unlimited permission to run the unmodified Program. The output from running a covered work is covered by this License only if the output, given its content, constitutes a covered work. This License acknowledges your rights of fair use or other equivalent, as provided by copyright law.
-
-You may make, run and propagate covered works that you do not convey, without conditions so long as your license otherwise remains in force. You may convey covered works to others for the sole purpose of having them make modifications exclusively for you, or provide you with facilities for running those works, provided that you comply with the terms of this License in conveying all material for which you do not control copyright. Those thus making or running the covered works for you must do so exclusively on your behalf, under your direction and control, on terms that prohibit them from making any copies of your copyrighted material outside their relationship with you.
-
-Conveying under any other circumstances is permitted solely under the conditions stated below. Sublicensing is not allowed; section 10 makes it unnecessary.
-
-3. Protecting Users' Legal Rights From Anti-Circumvention Law.
-No covered work shall be deemed part of an effective technological measure under any applicable law fulfilling obligations under article 11 of the WIPO copyright treaty adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention of such measures.
-
-When you convey a covered work, you waive any legal power to forbid circumvention of technological measures to the extent such circumvention is effected by exercising rights under this License with respect to the covered work, and you disclaim any intention to limit operation or modification of the work as a means of enforcing, against the work's users, your or third parties' legal rights to forbid circumvention of technological measures.
-
-4. Conveying Verbatim Copies.
-You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program.
-
-You may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee.
-
-5. Conveying Modified Source Versions.
-You may convey a work based on the Program, or the modifications to produce it from the Program, in the form of source code under the terms of section 4, provided that you also meet all of these conditions:
-
-     a) The work must carry prominent notices stating that you modified it, and giving a relevant date.
-
-     b) The work must carry prominent notices stating that it is released under this License and any conditions added under section 7. This requirement modifies the requirement in section 4 to “keep intact all notices”.
-
-     c) You must license the entire work, as a whole, under this License to anyone who comes into possession of a copy. This License will therefore apply, along with any applicable section 7 additional terms, to the whole of the work, and all its parts, regardless of how they are packaged. This License gives no permission to license the work in any other way, but it does not invalidate such permission if you have separately received it.
-
-     d) If the work has interactive user interfaces, each must display Appropriate Legal Notices; however, if the Program has interactive interfaces that do not display Appropriate Legal Notices, your work need not make them do so.
-
-A compilation of a covered work with other separate and independent works, which are not by their nature extensions of the covered work, and which are not combined with it such as to form a larger program, in or on a volume of a storage or distribution medium, is called an “aggregate” if the compilation and its resulting copyright are not used to limit the access or legal rights of the compilation's users beyond what the individual works permit. Inclusion of a covered work in an aggregate does not cause this License to apply to the other parts of the aggregate.
-
-6. Conveying Non-Source Forms.
-You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways:
-
-     a) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by the Corresponding Source fixed on a durable physical medium customarily used for software interchange.
-
-     b) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by a written offer, valid for at least three years and valid for as long as you offer spare parts or customer support for that product model, to give anyone who possesses the object code either (1) a copy of the Corresponding Source for all the software in the product that is covered by this License, on a durable physical medium customarily used for software interchange, for a price no more than your reasonable cost of physically performing this conveying of source, or (2) access to copy the Corresponding Source from a network server at no charge.
-
-     c) Convey individual copies of the object code with a copy of the written offer to provide the Corresponding Source. This alternative is allowed only occasionally and noncommercially, and only if you received the object code with such an offer, in accord with subsection 6b.
-
-     d) Convey the object code by offering access from a designated place (gratis or for a charge), and offer equivalent access to the Corresponding Source in the same way through the same place at no further charge. You need not require recipients to copy the Corresponding Source along with the object code. If the place to copy the object code is a network server, the Corresponding Source may be on a different server (operated by you or a third party) that supports equivalent copying facilities, provided you maintain clear directions next to the object code saying where to find the Corresponding Source. Regardless of what server hosts the Corresponding Source, you remain obligated to ensure that it is available for as long as needed to satisfy these requirements.
-
-     e) Convey the object code using peer-to-peer transmission, provided you inform other peers where the object code and Corresponding Source of the work are being offered to the general public at no charge under subsection 6d.
-
-A separable portion of the object code, whose source code is excluded from the Corresponding Source as a System Library, need not be included in conveying the object code work.
-
-A “User Product” is either (1) a “consumer product”, which means any tangible personal property which is normally used for personal, family, or household purposes, or (2) anything designed or sold for incorporation into a dwelling. In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. For a particular product received by a particular user, “normally used” refers to a typical or common use of that class of product, regardless of the status of the particular user or of the way in which the particular user actually uses, or expects or is expected to use, the product. A product is a consumer product regardless of whether the product has substantial commercial, industrial or non-consumer uses, unless such uses represent the only significant mode of use of the product.
-
-“Installation Information” for a User Product means any methods, procedures, authorization keys, or other information required to install and execute modified versions of a covered work in that User Product from a modified version of its Corresponding Source. The information must suffice to ensure that the continued functioning of the modified object code is in no case prevented or interfered with solely because modification has been made.
-
-If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM).
-
-The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network.
-
-Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying.
-
-7. Additional Terms.
-“Additional permissions” are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions.
-
-When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission.
-
-Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms:
-
-     a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or
-
-     b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or
-
-     c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or
-
-     d) Limiting the use for publicity purposes of names of licensors or authors of the material; or
-
-     e) Declining to grant rights under trademark law for use of some trade names, trademarks, or service marks; or
-
-     f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors.
-
-All other non-permissive additional terms are considered “further restrictions” within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying.
-
-If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms.
-
-Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way.
-
-8. Termination.
-You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11).
-
-However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation.
-
-Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice.
-
-Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10.
-
-9. Acceptance Not Required for Having Copies.
-You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so.
-
-10. Automatic Licensing of Downstream Recipients.
-Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License.
-
-An “entity transaction” is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts.
-
-You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it.
-
-11. Patents.
-A “contributor” is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's “contributor version”.
-
-A contributor's “essential patent claims” are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, “control” includes the right to grant patent sublicenses in a manner consistent with the requirements of this License.
-
-Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version.
-
-In the following three paragraphs, a “patent license” is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To “grant” such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party.
-
-If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. “Knowingly relying” means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid.
-
-If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it.
-
-A patent license is “discriminatory” if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007.
-
-Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law.
-
-12. No Surrender of Others' Freedom.
-If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program.
-
-13. Use with the GNU Affero General Public License.
-Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such.
-
-14. Revised Versions of this License.
-The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
-
-Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License “or any later version” applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation.
-
-If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.
-
-Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.
-
-15. Disclaimer of Warranty.
-THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-16. Limitation of Liability.
-IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
-
-17. Interpretation of Sections 15 and 16.
-If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.
-
-END OF TERMS AND CONDITIONS
-
-How to Apply These Terms to Your New Programs
-
-If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.
-
-To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the “copyright” line and a pointer to where the full notice is found.
-
-     <one line to give the program's name and a brief idea of what it does.>
-     Copyright (C) <year>  <name of author>
-
-     This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
-
-     This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-     You should have received a copy of the GNU General Public License along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode:
-
-     <program>  Copyright (C) <year>  <name of author>
-     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-     This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an “about box”.
-
-You should also get your employer (if you work as a programmer) or school, if any, to sign a “copyright disclaimer” for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see <http://www.gnu.org/licenses/>.
-
-The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.

LICENSES/LicenseRef-Altera-No-Warranty.txt

@@ -1,7 +0,0 @@
-This Verilog file was developed by Altera Corporation.  It may be
-freely copied and/or distributed at no cost.  Any persons using this
-file for any purpose do so at their own risk, and are responsible for
-the results of such use.  Altera Corporation does not guarantee that
-this file is complete, correct, or fit for any particular purpose.
-NO WARRANTY OF ANY KIND IS EXPRESSED OR IMPLIED.  This notice must
-accompany any copy of this file.

LICENSES/LicenseRef-IEEE-1800.txt

@@ -1,22 +0,0 @@
-This license is used on IEEE files where there is a permitted use of
-standards, including copying strictly necessary to implement normative
-interfaces defined by the standard. Refer to IEEE SA Operations Manual
-Clause 6.1 and IEEE Standards Permission policies.
-
---
-
-Copyright 2024 by The Institute of Electrical and Electronics Engineers, Inc.
-All rights reserved.
-
-IEEE, 802, and POSIX are registered trademarks in the U.S. Patent &
-Trademark Office, owned by The Institute of Electrical and Electronics
-Engineers, Incorporated.
-
-IEEE draft and approved standards are copyrighted by IEEE under US and
-international copyright laws.  They are made available by IEEE and are
-adopted for a wide variety of both public and private uses. These include
-both use, by reference, in laws and regulations, and use in private
-self-regulation, standardization, and the promotion of engineering
-practices and methods. By making these documents available for use and
-adoption by public authorities and private users, neither IEEE nor its
-licensors waive any rights in copyright to the documents.

LICENSES/MIT.txt

@@ -1,18 +0,0 @@
-MIT License
-
-Copyright (c) <year> <copyright holders>
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
-associated documentation files (the "Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the
-following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial
-portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
-LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
-EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-USE OR OTHER DEALINGS IN THE SOFTWARE.

LICENSES/Unlicense.txt

@@ -1,10 +0,0 @@
-This is free and unencumbered software released into the public domain.
-
-Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.
-
-In jurisdictions that recognize copyright laws, the author or authors of this software dedicate any and all copyright interest in the software to the public domain. We make this dedication for the benefit of the public at large and to the detriment of our heirs and
-successors. We intend this dedication to be an overt act of relinquishment in perpetuity of all present and future rights to this software under copyright law.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-For more information, please refer to <http://unlicense.org/>

Makefile.in

@@ -7,10 +7,10 @@
 #
 #*****************************************************************************
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2025-2026 Wilson Snyder
+# Copyright 2003-2023 by Wilson Snyder. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 #
 #****************************************************************************/
@@ -52,7 +52,6 @@ INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_DATA = @INSTALL_DATA@
 MAKEINFO = makeinfo
 POD2TEXT = pod2text
-PYTHON3 = @PYTHON3@
 MKINSTALLDIRS = $(SHELL) $(srcdir)/src/mkinstalldirs
 
 # Version (for docs/guide/conf.py)
@@ -77,7 +76,7 @@ datadir = @datadir@
 # Directory in which to install documentation info files.
 infodir = @infodir@
 
-# Directory in which to install package-specific files
+# Directory in which to install package specific files
 # Generally ${prefix}/share/verilator
 pkgdatadir = @pkgdatadir@
 
@@ -91,69 +90,62 @@ datarootdir = @datarootdir@
 # Compile options
 CFG_WITH_CCWARN = @CFG_WITH_CCWARN@
 CFG_WITH_DEFENV = @CFG_WITH_DEFENV@
-CFG_WITH_DEV_GCOV = @CFG_WITH_DEV_GCOV@
 CFG_WITH_LONGTESTS = @CFG_WITH_LONGTESTS@
-CFG_WITH_SOLVER = @CFG_WITH_SOLVER@
-GCOV = @GCOV@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 
 #### End of system configuration section. ####
 ######################################################################
-# Main build targets
 
 .SUFFIXES:
 
 SHELL = /bin/sh
 
 SUBDIRS = docs src test_regress \
-  examples/cmake_hello_c \
-  examples/cmake_hello_sc \
-  examples/cmake_tracing_c \
-  examples/cmake_tracing_sc \
-  examples/cmake_protect_lib \
-  examples/make_hello_binary \
-  examples/make_hello_c \
-  examples/make_hello_sc \
-  examples/make_tracing_c \
-  examples/make_tracing_sc \
-  examples/make_protect_lib \
-  examples/json_py \
+	examples/cmake_hello_c \
+	examples/cmake_hello_sc \
+	examples/cmake_tracing_c \
+	examples/cmake_tracing_sc \
+	examples/cmake_protect_lib \
+	examples/make_hello_binary \
+	examples/make_hello_c \
+	examples/make_hello_sc \
+	examples/make_tracing_c \
+	examples/make_tracing_sc \
+	examples/make_protect_lib \
+	examples/xml_py \
 
 INFOS = verilator.html verilator.pdf
 
 INFOS_OLD = README README.html README.pdf
 
 EXAMPLES_FIRST = \
-  examples/make_hello_c \
-  examples/make_hello_sc \
+	examples/make_hello_c \
+	examples/make_hello_sc \
 
 EXAMPLES = $(EXAMPLES_FIRST) $(filter-out $(EXAMPLES_FIRST), $(sort $(wildcard examples/*)))
 
 # See uninstall also - don't put wildcards in this variable, it might uninstall other stuff
 # No verilator_ccache_report.1, verilator_difftree.1 as those are not bin/ installed
 VL_INST_MAN_FILES = \
-  verilator.1 \
-  verilator_coverage.1 \
-  verilator_gantt.1 \
-  verilator_profcfunc.1 \
+	verilator.1 \
+	verilator_coverage.1 \
+	verilator_gantt.1 \
+	verilator_profcfunc.1 \
 
 default: all
 all: all_nomsg msg_test
 all_nomsg: verilator_exe $(VL_INST_MAN_FILES)
 
-.PHONY: verilator_exe
-.PHONY: verilator_bin$(EXEEXT)
-.PHONY: verilator_bin_dbg$(EXEEXT)
-.PHONY: verilator_coverage_bin_dbg$(EXEEXT)
+.PHONY:verilator_exe
+.PHONY:verilator_bin$(EXEEXT)
+.PHONY:verilator_bin_dbg$(EXEEXT)
+.PHONY:verilator_coverage_bin_dbg$(EXEEXT)
 verilator_exe verilator_bin$(EXEEXT) verilator_bin_dbg$(EXEEXT) verilator_coverage_bin_dbg$(EXEEXT):
 	@echo ------------------------------------------------------------
 	@echo "making verilator in src"
 	$(MAKE) -C src $(OBJCACHE_JOBS)
 
-######################################################################
-# Tests
-
-.PHONY: msg_test
+.PHONY:msg_test
 msg_test: all_nomsg
 	@echo "Build complete!"
 	@echo
@@ -163,7 +155,7 @@ msg_test: all_nomsg
 .PHONY: test
 ifeq ($(CFG_WITH_LONGTESTS),yes)  # Local... Else don't burden users
 test: smoke-test test_regress
-# examples is part of test_regress's test_regress/t/t_a2_examples.py
+# examples is part of test_regress's test_regress/t/t_a2_examples.pl
 # (because that allows it to run in parallel with other test_regress's)
 else
 test: smoke-test examples
@@ -175,26 +167,19 @@ endif
 	@echo
 
 smoke-test: all_nomsg
-	test_regress/t/t_a1_first_cc.py
-	test_regress/t/t_a2_first_sc.py
+	test_regress/t/t_a1_first_cc.pl
+	test_regress/t/t_a2_first_sc.pl
 
 test_regress: all_nomsg
 	$(MAKE) -C test_regress
 
-.PHONY: test-snap test-diff
-test-snap test-diff:
-	$(MAKE) -C test_regress $@
-
 examples: all_nomsg
 	for p in $(EXAMPLES) ; do \
-		$(MAKE) -C $$p VERILATOR_ROOT=`pwd` || exit 10; \
+	  $(MAKE) -C $$p VERILATOR_ROOT=`pwd` || exit 10; \
 	done
 
-######################################################################
-# Docs
-
 .PHONY: docs
-docs: info $(VL_INST_MAN_FILES)
+docs: info
 
 info: $(INFOS)
 
@@ -203,8 +188,7 @@ verilator.1: ${srcdir}/bin/verilator
 verilator_coverage.1: ${srcdir}/bin/verilator_coverage
 	pod2man $< $@
 %.1: ${srcdir}/bin/%
-	help2man --no-info --no-discard-stderr --version-string=- \
-		-n "$(shell $< --help | head -n 3 | tail -n 1)" $< -o $@
+	help2man --no-info --no-discard-stderr --version-string=- $< -o $@
 
 .PHONY: verilator.html
 verilator.html:
@@ -215,106 +199,56 @@ verilator.html:
 verilator.pdf: Makefile
 	$(MAKE) -C docs verilator.pdf
 
-TAGFILES = ${srcdir}/*/*.cpp ${srcdir}/*/*.h ${srcdir}/*/*.in \
-  ${srcdir}/*.in ${srcdir}/*.pod
-
-TAGS: $(TAGFILES)
-	etags $(TAGFILES)
-
-.PHONY: doxygen
-
-doxygen:
-	$(MAKE) -C docs doxygen
-
-.PHONY: spelling
-spelling:
-	$(MAKE) -C docs spelling
-
-######################################################################
-# Install
-
-# Public executables intended to be invoked directly by the user
-# Don't put wildcards in these variables, it might cause an uninstall of other stuff
-VL_INST_PUBLIC_SCRIPT_FILES = \
-  verilator \
-  verilator_coverage \
-  verilator_gantt \
-  verilator_profcfunc \
-
-VL_INST_PUBLIC_BIN_FILES = \
-  verilator_bin$(EXEEXT) \
-  verilator_bin_dbg$(EXEEXT) \
-  verilator_coverage_bin_dbg$(EXEEXT) \
-
-# Private executabels intended to be invoked by internals
-# Don't put wildcards in these variables, it might cause an uninstall of other stuff
-VL_INST_PRIVATE_SCRIPT_FILES = \
-  verilator_ccache_report \
-  verilator_includer \
+# See uninstall also - don't put wildcards in this variable, it might uninstall other stuff
+VL_INST_BIN_FILES = verilator verilator_bin$(EXEEXT) verilator_bin_dbg$(EXEEXT) verilator_coverage_bin_dbg$(EXEEXT) \
+	verilator_ccache_report verilator_coverage verilator_difftree verilator_gantt verilator_includer verilator_profcfunc
+# Some scripts go into both the search path and pkgdatadir,
+# so they can be found by the user, and under $VERILATOR_ROOT.
 
 VL_INST_INC_BLDDIR_FILES = \
-  include/verilated_config.h \
-  include/verilated.mk \
+	include/verilated_config.h \
+	include/verilated.mk \
 
 # Files under srcdir, instead of build time
 VL_INST_INC_SRCDIR_FILES = \
-  include/*.[chv]* \
-  include/*.vlt \
-  include/*.sv \
-  include/fstcpp/*.[chv]* \
-  include/vltstd/*.[chv]* \
+	include/*.[chv]* \
+	include/*.sv \
+	include/gtkwave/*.[chv]* \
+	include/vltstd/*.[chv]* \
 
 VL_INST_DATA_SRCDIR_FILES = \
-  examples/*/*.[chv]* \
-  examples/*/CMakeLists.txt \
-  examples/*/Makefile* \
-  examples/*/vl_* \
+	examples/*/*.[chv]* \
+	examples/*/CMakeLists.txt \
+	examples/*/Makefile* \
+	examples/*/vl_* \
 
-mkbindirs:
-	$(MKINSTALLDIRS) $(DESTDIR)$(pkgdatadir)/bin
+installbin:
 	$(MKINSTALLDIRS) $(DESTDIR)$(bindir)
-
-installbin: | mkbindirs
-	cd $(srcdir)/bin; \
-	for p in $(VL_INST_PUBLIC_SCRIPT_FILES) ; do \
-		$(INSTALL_PROGRAM) $$p $(DESTDIR)$(bindir)/$$p; \
-	done
-	perl -p -i -e 'use File::Spec;' \
-	           -e' $$path = File::Spec->abs2rel("$(realpath $(DESTDIR)$(pkgdatadir))", "$(realpath $(DESTDIR)$(bindir))");' \
-	           -e 's/my \$$verilator_pkgdatadir_relpath = .*/my \$$verilator_pkgdatadir_relpath = "$$path";/g' \
-	           -- "$(DESTDIR)/$(bindir)/verilator"
-	cd bin; \
-	for p in $(VL_INST_PUBLIC_BIN_FILES) ; do \
-		$(INSTALL_PROGRAM) $$p $(DESTDIR)$(bindir)/$$p; \
-	done
-	cd $(srcdir)/bin; \
-	for p in $(VL_INST_PRIVATE_SCRIPT_FILES) ; do \
-		$(INSTALL_PROGRAM) $$p $(DESTDIR)$(pkgdatadir)/bin/$$p; \
-	done
-
-installredirect: installbin | mkbindirs
-	REDIR_SCRATCH=$$(mktemp redir_XXXXXX); \
-	perl -p -e 'use File::Spec;' \
-	        -e' $$path = File::Spec->abs2rel("$(realpath $(DESTDIR)$(bindir))", "$(realpath $(DESTDIR)$(pkgdatadir)/bin)");' \
-	        -e 's/RELPATH.*/"$$path";/g' -- "${srcdir}/bin/redirect" > $$REDIR_SCRATCH; \
-	for p in $(VL_INST_PUBLIC_SCRIPT_FILES) $(VL_INST_PUBLIC_BIN_FILES) ; do \
-		$(INSTALL_PROGRAM) $$REDIR_SCRATCH $(DESTDIR)$(pkgdatadir)/bin/$$p; \
-	done; \
-	rm $$REDIR_SCRATCH
+	( cd ${srcdir}/bin ; $(INSTALL_PROGRAM) verilator $(DESTDIR)$(bindir)/verilator )
+	( cd ${srcdir}/bin ; $(INSTALL_PROGRAM) verilator_coverage $(DESTDIR)$(bindir)/verilator_coverage )
+	( cd ${srcdir}/bin ; $(INSTALL_PROGRAM) verilator_gantt $(DESTDIR)$(bindir)/verilator_gantt )
+	( cd ${srcdir}/bin ; $(INSTALL_PROGRAM) verilator_profcfunc $(DESTDIR)$(bindir)/verilator_profcfunc )
+	( cd bin ; $(INSTALL_PROGRAM) verilator_bin$(EXEEXT) $(DESTDIR)$(bindir)/verilator_bin$(EXEEXT) )
+	( cd bin ; $(INSTALL_PROGRAM) verilator_bin_dbg$(EXEEXT) $(DESTDIR)$(bindir)/verilator_bin_dbg$(EXEEXT) )
+	( cd bin ; $(INSTALL_PROGRAM) verilator_coverage_bin_dbg$(EXEEXT) $(DESTDIR)$(bindir)/verilator_coverage_bin_dbg$(EXEEXT) )
+	$(MKINSTALLDIRS) $(DESTDIR)$(pkgdatadir)/bin
+	( cd ${srcdir}/bin ; $(INSTALL_PROGRAM) verilator_includer $(DESTDIR)$(pkgdatadir)/bin/verilator_includer )
+	( cd ${srcdir}/bin ; $(INSTALL_PROGRAM) verilator_ccache_report $(DESTDIR)$(pkgdatadir)/bin/verilator_ccache_report )
+	( cd ${srcdir}/bin ; $(INSTALL_PROGRAM) verilator_difftree $(DESTDIR)$(pkgdatadir)/bin/verilator_difftree )
 
 # Man files can either be part of the original kit, or built in current directory
 # So important we use $^ so VPATH is searched
 installman: $(VL_INST_MAN_FILES)
 	$(MKINSTALLDIRS) $(DESTDIR)$(mandir)/man1
 	for p in $^ ; do \
-		$(INSTALL_DATA) $$p $(DESTDIR)$(mandir)/man1/$$p; \
+	  $(INSTALL_DATA) $$p $(DESTDIR)$(mandir)/man1/$$p; \
 	done
 
 installdata:
-	$(MKINSTALLDIRS) $(DESTDIR)$(pkgdatadir)/include/fstcpp
+	$(MKINSTALLDIRS) $(DESTDIR)$(pkgdatadir)/include/gtkwave
 	$(MKINSTALLDIRS) $(DESTDIR)$(pkgdatadir)/include/vltstd
 	for p in $(VL_INST_INC_BLDDIR_FILES) ; do \
-		$(INSTALL_DATA) $$p $(DESTDIR)$(pkgdatadir)/$$p; \
+	  $(INSTALL_DATA) $$p $(DESTDIR)$(pkgdatadir)/$$p; \
 	done
 	cd $(srcdir) \
 	; for p in $(VL_INST_INC_SRCDIR_FILES) ; do \
@@ -331,7 +265,7 @@ installdata:
 	$(MKINSTALLDIRS) $(DESTDIR)$(pkgdatadir)/examples/cmake_tracing_c
 	$(MKINSTALLDIRS) $(DESTDIR)$(pkgdatadir)/examples/cmake_tracing_sc
 	$(MKINSTALLDIRS) $(DESTDIR)$(pkgdatadir)/examples/cmake_protect_lib
-	$(MKINSTALLDIRS) $(DESTDIR)$(pkgdatadir)/examples/json_py
+	$(MKINSTALLDIRS) $(DESTDIR)$(pkgdatadir)/examples/xml_py
 	cd $(srcdir) \
 	; for p in $(VL_INST_DATA_SRCDIR_FILES) ; do \
 	  $(INSTALL_DATA) $$p $(DESTDIR)$(pkgdatadir)/$$p; \
@@ -343,11 +277,8 @@ installdata:
 
 # We don't trust rm -rf, so rmdir instead as it will fail if user put in other files
 uninstall:
-	-cd $(DESTDIR)$(bindir) && rm -f $(VL_INST_PUBLIC_SCRIPT_FILES)
-	-cd $(DESTDIR)$(bindir) && rm -f $(VL_INST_PUBLIC_BIN_FILES)
-	-cd $(DESTDIR)$(pkgdatadir)/bin && rm -f $(VL_INST_PUBLIC_SCRIPT_FILES)
-	-cd $(DESTDIR)$(pkgdatadir)/bin && rm -f $(VL_INST_PUBLIC_BIN_FILES)
-	-cd $(DESTDIR)$(pkgdatadir)/bin && rm -f $(VL_INST_PRIVATE_SCRIPT_FILES)
+	-cd $(DESTDIR)$(bindir) && rm -f $(VL_INST_BIN_FILES)
+	-cd $(DESTDIR)$(pkgdatadir)/bin && rm -f $(VL_INST_BIN_FILES)
 	-cd $(DESTDIR)$(mandir)/man1 && rm -f $(VL_INST_MAN_FILES)
 	-cd $(DESTDIR)$(pkgdatadir) && rm -f $(VL_INST_INC_BLDDIR_FILES)
 	-cd $(DESTDIR)$(pkgdatadir) && rm -f $(VL_INST_INC_SRCDIR_FILES)
@@ -356,7 +287,7 @@ uninstall:
 	-rm $(DESTDIR)$(pkgdatadir)/verilator-config.cmake
 	-rm $(DESTDIR)$(pkgdatadir)/verilator-config-version.cmake
 	-rmdir $(DESTDIR)$(pkgdatadir)/bin
-	-rmdir $(DESTDIR)$(pkgdatadir)/include/fstcpp
+	-rmdir $(DESTDIR)$(pkgdatadir)/include/gtkwave
 	-rmdir $(DESTDIR)$(pkgdatadir)/include/vltstd
 	-rmdir $(DESTDIR)$(pkgdatadir)/include
 	-rmdir $(DESTDIR)$(pkgdatadir)/examples/make_hello_binary
@@ -370,83 +301,65 @@ uninstall:
 	-rmdir $(DESTDIR)$(pkgdatadir)/examples/cmake_tracing_c
 	-rmdir $(DESTDIR)$(pkgdatadir)/examples/cmake_tracing_sc
 	-rmdir $(DESTDIR)$(pkgdatadir)/examples/cmake_protect_lib
-	-rmdir $(DESTDIR)$(pkgdatadir)/examples/json_py
+	-rmdir $(DESTDIR)$(pkgdatadir)/examples/xml_py
 	-rmdir $(DESTDIR)$(pkgdatadir)/examples
 	-rmdir $(DESTDIR)$(pkgdatadir)
 	-rmdir $(DESTDIR)$(pkgconfigdir)
 
 install: all_nomsg install-all
-install-all: installbin installredirect installman installdata install-msg
+install-all: installbin installman installdata install-msg
 
 install-here: installman info
 
-install-msg:
-	@echo
-	@echo "Installed binaries to $(DESTDIR)$(bindir)/verilator"
-	@echo "Installed man to $(DESTDIR)$(mandir)/man1"
-	@echo "Installed examples to $(DESTDIR)$(pkgdatadir)/examples"
-	@echo
-	@echo "For documentation see 'man verilator' or 'verilator --help'"
-	@echo "For forums and to report bugs see https://verilator.org"
-	@echo
-
-######################################################################
-# Format/Lint
-
-CPPCHECK_VERILATOR_CPP = $(wildcard $(srcdir)/src/V3*.cpp $(srcdir)/src/Verilator*.cpp)
-CPPCHECK_RUNTIME_CPP = $(wildcard $(srcdir)/include/*.cpp)
-CPPCHECK_VLC_CPP = $(wildcard $(srcdir)/src/Vlc*.cpp)
-CPPCHECK_EXAMPLES_CPP = $(wildcard $(srcdir)/examples/*/*.cpp)
-CHECK_CPP = $(CPPCHECK_VERILATOR_CPP) $(CPPCHECK_RUNTIME_CPP) $(CPPCHECK_VLC_CPP) $(CPPCHECK_EXAMPLES_CPP)
-CHECK_H = $(filter-out \
-  $(srcdir)/src/config_package.h \
-  $(srcdir)/src/config_rev.h, \
-  $(wildcard \
-  $(srcdir)/include/*.h \
-  $(srcdir)/src/*.h ))
+# Use --xml flag to see the cppcheck code to use for suppression
+CPPCHECK1_CPP = $(wildcard $(srcdir)/include/*.cpp)
+CPPCHECK2_CPP = $(wildcard $(srcdir)/examples/*/*.cpp)
+CPPCHECK3_CPP = $(wildcard $(srcdir)/src/Vlc*.cpp)
+CPPCHECK4_CPP = $(wildcard $(srcdir)/src/V3[A-D]*.cpp $(srcdir)/src/Verilator*.cpp)
+CPPCHECK5_CPP = $(wildcard $(srcdir)/src/V3[E-I]*.cpp)
+CPPCHECK6_CPP = $(wildcard $(srcdir)/src/V3[P-Z]*.cpp)
+CPPCHECK7_CPP = $(wildcard $(srcdir)/src/V3[L-R]*.cpp)
+CPPCHECK8_CPP = $(wildcard $(srcdir)/src/V3[S-Z]*.cpp)
+CHECK_CPP = $(CPPCHECK1_CPP) $(CPPCHECK2_CPP) $(CPPCHECK3_CPP) $(CPPCHECK4_CPP) \
+	$(CPPCHECK5_CPP) $(CPPCHECK6_CPP) $(CPPCHECK7_CPP) $(CPPCHECK8_CPP)
+CHECK_H = $(wildcard \
+	$(srcdir)/include/*.h \
+	$(srcdir)/src/*.h )
 CHECK_YL = $(wildcard \
-  $(srcdir)/src/*.y \
-  $(srcdir)/src/*.l )
-CPPCHECK = cppcheck
-CPPCHECK_JOBS = $(shell nproc)
-CPPCHECK_CACHE = $(srcdir)/src/obj_dbg/cppcheck-cache
-CPPCHECK_FLAGS = --enable=all
-CPPCHECK_FLAGS += --inline-suppr
-CPPCHECK_FLAGS += --suppressions-list=$(srcdir)/src/cppcheck-suppressions.txt
-CPPCHECK_FLAGS += --cppcheck-build-dir=$(CPPCHECK_CACHE)
-CPPCHECK_FLAGS += -DVL_DEBUG=1 -DVL_CPPCHECK=1 -DINFILTER_PIPE=1 -D__GNUC__=1
-CPPCHECK_FLAGS += -j$(CPPCHECK_JOBS)
-CPPCHECK_INC = -I$(srcdir)/include
-CPPCHECK_INC += -I$(srcdir)/include/fstcpp
-CPPCHECK_INC += -I$(srcdir)/include/vltstd
-CPPCHECK_INC += -I$(srcdir)/src/obj_dbg
-CPPCHECK_INC += -I$(srcdir)/src
+	$(srcdir)/src/*.y \
+	$(srcdir)/src/*.l )
+CPPCHECK = src/cppcheck_filtered cppcheck
+CPPCHECK_FLAGS = --enable=all --inline-suppr \
+	--suppress=cstyleCast --suppress=useInitializationList \
+	--suppress=nullPointer --suppress=nullPointerRedundantCheck --suppress=ctunullpointer \
+	--suppress=unusedFunction --suppress=unusedScopedObject \
+	--suppress=useStlAlgorithm
+CPPCHECK_FLAGS += --xml
+CPPCHECK_DEP = $(subst .cpp,.cppcheck,$(CHECK_CPP))
+CPPCHECK_INC = -I$(srcdir)/include -I$(srcdir)/src/obj_dbg -I$(srcdir)/src
 
-$(CPPCHECK_CACHE): $(CHECK_CPP) $(CHECK_H) $(CHECK_YL)
-	/bin/rm -rf $@
-	/bin/mkdir -p $@
-
-cppcheck-verilator: | $(CPPCHECK_CACHE)
-	$(CPPCHECK) $(CPPCHECK_FLAGS) $(CPPCHECK_INC) $(CPPCHECK_VERILATOR_CPP)
-cppcheck-runtime: | $(CPPCHECK_CACHE)
-	$(CPPCHECK) $(CPPCHECK_FLAGS) $(CPPCHECK_INC) $(CPPCHECK_RUNTIME_CPP)
-cppcheck-vlc: | $(CPPCHECK_CACHE)
-	$(CPPCHECK) $(CPPCHECK_FLAGS) $(CPPCHECK_INC) $(CPPCHECK_VLC_CPP)
-cppcheck-examples: | $(CPPCHECK_CACHE)
-	$(CPPCHECK) $(CPPCHECK_FLAGS) $(CPPCHECK_INC) $(CPPCHECK_EXAMPLES_CPP)
-
-cppcheck:
-	$(MAKE) cppcheck-vlc
-	$(MAKE) cppcheck-examples
-	$(MAKE) cppcheck-runtime
-	$(MAKE) cppcheck-verilator
+cppcheck: cppcheck-1 cppcheck-2 cppcheck-3 cppcheck-4 cppcheck-5 cppcheck-6 cppcheck-7 cppcheck-8
+cppcheck-1:
+	$(CPPCHECK) $(CPPCHECK_FLAGS) -DVL_DEBUG=1 -DVL_CPPCHECK=1 $(CPPCHECK_INC) $(CPPCHECK1_CPP)
+cppcheck-2:
+	$(CPPCHECK) $(CPPCHECK_FLAGS) -DVL_DEBUG=1 -DVL_CPPCHECK=1 $(CPPCHECK_INC) $(CPPCHECK2_CPP)
+cppcheck-3:
+	$(CPPCHECK) $(CPPCHECK_FLAGS) -DVL_DEBUG=1 -DVL_CPPCHECK=1 $(CPPCHECK_INC) $(CPPCHECK3_CPP)
+cppcheck-4:
+	$(CPPCHECK) $(CPPCHECK_FLAGS) -DVL_DEBUG=1 -DVL_CPPCHECK=1 $(CPPCHECK_INC) $(CPPCHECK4_CPP)
+cppcheck-5:
+	$(CPPCHECK) $(CPPCHECK_FLAGS) -DVL_DEBUG=1 -DVL_CPPCHECK=1 $(CPPCHECK_INC) $(CPPCHECK5_CPP)
+cppcheck-6:
+	$(CPPCHECK) $(CPPCHECK_FLAGS) -DVL_DEBUG=1 -DVL_CPPCHECK=1 $(CPPCHECK_INC) $(CPPCHECK6_CPP)
+cppcheck-7:
+	$(CPPCHECK) $(CPPCHECK_FLAGS) -DVL_DEBUG=1 -DVL_CPPCHECK=1 $(CPPCHECK_INC) $(CPPCHECK7_CPP)
+cppcheck-8:
+	$(CPPCHECK) $(CPPCHECK_FLAGS) -DVL_DEBUG=1 -DVL_CPPCHECK=1 $(CPPCHECK_INC) $(CPPCHECK8_CPP)
 
 CLANGTIDY = clang-tidy
 CLANGTIDY_FLAGS = -config='' \
-  -header-filter='.*' \
-  -checks='*,-abseil-*,-fuchsia-*,-cppcoreguidelines-avoid-c-arrays,-cppcoreguidelines-avoid-do-while,-cppcoreguidelines-init-variables,-cppcoreguidelines-avoid-goto,-modernize-avoid-c-arrays,-readability-magic-numbers,-readability-simplify-boolean-expr,-cppcoreguidelines-macro-usage' \
-
-# Good checks: -checks='-*,bugprone-assignment-in-if-condition,google-build-using-namespace,google-readability-casting,modernize-use-default-member-init,modernize-use-emplace,modernize-use-equals-default,modernize-use-equals-delete,modernize-use-nullptr,performance-faster-string-find,readability-isolate-declaration,readability-redundant-control-flow,readability-redundant-member-init,readability-redundant-string-cstr,readability-uppercase-literal-suffix
+	-header-filter='.*' \
+	-checks='-fuchsia-*,-cppcoreguidelines-avoid-c-arrays,-cppcoreguidelines-init-variables,-cppcoreguidelines-avoid-goto,-modernize-avoid-c-arrays,-readability-magic-numbers,-readability-simplify-boolean-expr,-cppcoreguidelines-macro-usage' \
 
 CLANGTIDY_DEP = $(subst .cpp,.cpp.tidy,$(CHECK_CPP))
 CLANGTIDY_DEFS = -DVL_DEBUG=1 -DVL_CPPCHECK=1
@@ -465,212 +378,74 @@ analyzer-include:
 	-rm -rf examples/*/obj*
 	scan-build $(MAKE) -k examples
 
-# Bash/sh files
-BASH_FILES = \
-  ci/ci-coverage-report.bash \
-  ci/ci-install.bash \
-  ci/ci-pages-notify.bash \
-  ci/ci-pages.bash \
-  ci/ci-rtlmeter-report.bash \
-  ci/ci-script.bash \
-  ci/docker/run/hooks/post_push \
-  ci/docker/run/verilator-docker \
-  ci/docker/run/verilator-wrap.sh \
-  nodist/fuzzer/all \
-  nodist/fuzzer/run \
-  nodist/fuzzer/setup_root \
-  nodist/fuzzer/setup_user \
+format: clang-format yapf format-pl-exec
 
-# CMake files
-CMAKE_FILES = \
-  CMakeLists.txt \
-  examples/*/CMakeLists.txt \
-  src/CMakeLists.txt \
-  test_regress/CMakeLists.txt \
-  *.cmake.in \
-
-# Makefiles
-MAKE_FILES = \
-  Makefile*.in \
-  docs/Makefile* \
-  include/verilated.mk.in \
-  examples/*/Makefile* \
-  src/Makefile*.in \
-  test_regress/Makefile* \
-
-# Markdown
-MD_FILES = \
-  *.md \
-  */*.md \
-
-# Perl programs
-PERL_PROGRAMS = \
-  bin/redirect \
-  bin/verilator \
-  bin/verilator_coverage \
-
-# Python programs, subject to format and lint
-PY_PROGRAMS = \
-  bin/verilator_ccache_report \
-  bin/verilator_difftree \
-  bin/verilator_gantt \
-  bin/verilator_includer \
-  bin/verilator_profcfunc \
-  docs/bin/vl_sphinx_extract \
-  docs/bin/vl_sphinx_fix \
-  docs/guide/conf.py \
-  examples/json_py/vl_file_copy \
-  examples/json_py/vl_hier_graph \
-  nodist/clang_check_attributes \
-  nodist/dot_importer \
-  nodist/fuzzer/actual_fail \
-  nodist/fuzzer/generate_dictionary \
-  nodist/install_test \
-  nodist/lint_py_test_filter \
-  nodist/log_changes \
-  nodist/uvm_pkg_packer \
-  nodist/verilator_bisect \
-  nodist/verilator_saif_diff \
-  src/.gdbinit.py \
-  src/astgen \
-  src/bisonpre \
-  src/config_rev \
-  src/flexfix \
-  src/vlcovgen \
-  test_regress/*.py \
-  test_regress/t/*.pf \
-  test_regress/t/randomize_solver_tamper.py \
-
-# Python files, subject to format but not lint
-PY_FILES = \
-  $(PY_PROGRAMS) \
-  ci/*.py \
-  test_regress/t/*.py \
-
-# Python files, test_regress tests
-PY_TEST_FILES = test_regress/t/*.py
-
-# reStructuredText Sphinx files
-RST_FILES = \
-  *.rst \
-  */*.rst \
-  ci/docker/*/*.rst \
-  docs/guide/*.rst \
-
-# YAML files
-YAML_FILES = \
-  .*.yaml \
-  .*.yml \
-  .github/*.yml \
-  .github/*/*.yml \
-  CITATION.cff \
-
-######################################################################
-# Format
-
-format:
-	$(MAKE) -j 5 format-c format-cmake format-exec format-md format-py format-rst format-yaml
-
-BEAUTYSH = beautysh
-BEAUTYSH_FLAGS = --indent-size 2
-
-format-bash:
-	$(BEAUTYSH) --version
-	$(BEAUTYSH) $(BEAUTYSH_FLAGS) $(BASH_FILES)
-
-CLANGFORMAT = clang-format-18
+CLANGFORMAT = clang-format-14
 CLANGFORMAT_FLAGS = -i
 CLANGFORMAT_FILES = $(CHECK_CPP) $(CHECK_H) $(CHECK_YL) test_regress/t/*.c* test_regress/t/*.h
 
-format-c clang-format:
-	$(CLANGFORMAT) --version
-	@$(CLANGFORMAT) --version | fgrep 'version 18' > /dev/null \
-	|| echo "*** You are not using clang-format-18, indents may differ from master's ***"
+clang-format:
+	@$(CLANGFORMAT) --version | egrep 14.0 > /dev/null \
+		|| echo "*** You are not using clang-format-14, indents may differ from master's ***"
 	$(CLANGFORMAT) $(CLANGFORMAT_FLAGS) $(CLANGFORMAT_FILES)
 
-GERSEMI = gersemi
-GERSEMI_FLAGS = -i --no-warn-about-unknown-commands
+PY_PROGRAMS = \
+	bin/verilator_ccache_report \
+	bin/verilator_difftree \
+	bin/verilator_gantt \
+	bin/verilator_includer \
+	bin/verilator_profcfunc \
+	examples/xml_py/vl_file_copy \
+	examples/xml_py/vl_hier_graph \
+	docs/guide/conf.py \
+	docs/bin/vl_sphinx_extract \
+	docs/bin/vl_sphinx_fix \
+	src/astgen \
+	src/bisonpre \
+	src/config_rev \
+	src/cppcheck_filtered \
+	src/flexfix \
+	src/vlcovgen \
+	test_regress/t/*.pf \
+	nodist/clang_check_attributes \
+	nodist/code_coverage \
+	nodist/dot_importer \
+	nodist/fuzzer/actual_fail \
+	nodist/fuzzer/generate_dictionary \
+	nodist/install_test \
 
-format-cmake:
-	$(GERSEMI) --version
-	$(GERSEMI) $(GERSEMI_FLAGS) $(CMAKE_FILES)
+PY_FILES = \
+	$(PY_PROGRAMS) \
+	nodist/code_coverage.dat \
 
-MBAKE = mbake
-MBAKE_FLAGS = format --config ./.bake.toml
+YAPF = yapf3
+YAPF_FLAGS = -i
 
-format-exec:
-	-chmod a+x test_regress/t/t_*.py
-	-chmod a-x test_regress/t/*.v
-
-format-make mbake:
-	$(MBAKE) --version
-	$(MBAKE) $(MBAKE_FLAGS) $(MAKE_FILES)
-
-MDFORMAT = mdformat
-MDFORMAT_FLAGS =
-
-format-md:
-	$(MDFORMAT) --version
-	$(MDFORMAT) $(MDFORMAT_FLAGS) $(MD_FILES)
-
-YAPF = yapf
-YAPF_FLAGS = -i --parallel
-
-format-py yapf:
-	$(YAPF) --version
+yapf:
 	$(YAPF) $(YAPF_FLAGS) $(PY_FILES)
 
-DOCSTRFMT = docstrfmt
-DOCSTRFMT_FLAGS = --line-length 75 --indent-width 3 --keep-blanks --ordered-marker "\#" --preserve-adornments --no-center-section-titles
-
-format-rst:
-	$(DOCSTRFMT) --version
-	$(DOCSTRFMT) $(DOCSTRFMT_FLAGS) $(RST_FILES)
-
-YAMLFIX = YAMLFIX_WHITELINES=1 YAMLFIX_LINE_LENGTH=200 YAMLFIX_preserve_quotes=true yamlfix
-YAMLFIX_FLAGS =
-
-format-yaml yamlfix:
-	$(YAMLFIX) --version
-	$(YAMLFIX) $(YAMLFIX_FLAGS) $(YAML_FILES)
-
-######################################################################
-# Lint
-
-MYPY = mypy
-MYPY_FLAGS = --strict --no-error-summary
-
 PYLINT = pylint
-PYLINT_FLAGS = --recursive=n --score=n --disable=R0801
-PYLINT_TEST_FLAGS = $(PYLINT_FLAGS) --disable=C0103,C0114,C0116,C0209,C0411,C0413,C0301,R0801,R0912,R0915,R0916,R1702,W0511,W0621
+PYLINT_FLAGS = --score=n --disable=R0801
 
 RUFF = ruff
 RUFF_FLAGS = check --ignore=E402,E501,E701
 
-# "make -k" so can see all tool result errors
 lint-py:
-	$(MAKE) -k lint-py-mypy lint-py-mypy-none lint-py-pylint lint-py-pylint-tests lint-py-ruff
+	-$(PYLINT) $(PYLINT_FLAGS) $(PY_PROGRAMS)
+	-$(RUFF) $(RUFF_FLAGS) $(PY_PROGRAMS)
 
-lint-py-mypy:
-	for filename in `fgrep -l '# mypy' $(PY_PROGRAMS)`; do \
-		echo "$(MYPY) $(MYPY_FLAGS) $$filename" ; \
-		$(MYPY) $(MYPY_FLAGS) $$filename ; \
-	done
+format-pl-exec:
+	-chmod a+x test_regress/t/*.pl
 
-lint-py-mypy-none:
-	@echo "mypy not checking: " `fgrep -L '# mypy' $(PY_PROGRAMS)`
-
-lint-py-pylint:
-	$(PYLINT) $(PYLINT_FLAGS) $(PY_PROGRAMS)
-
-lint-py-pylint-tests:
-	$(PYLINT) $(PYLINT_TEST_FLAGS) $(PY_TEST_FILES) | $(PYTHON3) nodist/lint_py_test_filter
-
-lint-py-ruff:
-	$(RUFF) $(RUFF_FLAGS) $(PY_PROGRAMS)
-
-######################################################################
-# Configure
+install-msg:
+	@echo
+	@echo "Installed binaries to $(DESTDIR)$(bindir)/verilator"
+	@echo "Installed man to $(DESTDIR)$(mandir)/man1"
+	@echo "Installed examples to $(DESTDIR)$(pkgdatadir)/examples"
+	@echo
+	@echo "For documentation see 'man verilator' or 'verilator --help'"
+	@echo "For forums and to report bugs see https://verilator.org"
+	@echo
 
 IN_WILD := ${srcdir}/*.in ${srcdir}/*/*.in
 
@@ -691,161 +466,6 @@ else
 	autoconf
 endif
 
-######################################################################
-# Coverage collection and reporting
-
-COVERAGE_DIR := obj_coverage
-
-ifeq ($(CFG_WITH_DEV_GCOV),yes)
-
-# Figure out base and head refs for coverage report
-COVERAGE_REF_BASE := $(if $(COVERAGE_BASE),$(shell git rev-parse --short $(COVERAGE_BASE) 2>/dev/null))
-ifneq ($(COVERAGE_BASE),)
- ifeq ($(COVERAGE_REF_BASE),)
-  $(error COVERAGE_BASE='$(COVERAGE_BASE)' is not a valid git revision)
- endif
-endif
-COVERAGE_REF_HEAD := $(shell git rev-parse --short HEAD)
-override undefine COVERAGE_BASE # Use the above variabels instead
-
-# 'fastcov' setup
-FASTCOV := nodist/fastcov.py
-FASTCOV_OPT := -j $(shell nproc)
-FASTCOV_OPT += --gcov $(GCOV)
-FASTCOV_OPT += --lcov
-FASTCOV_OPT += --process-gcno
-FASTCOV_OPT += --branch-coverage
-FASTCOV_OPT += --dump-statistic
-# Files matching the following glob patterns will be excluded from coverage
-FASTCOV_OPT += --exclude-glob
-FASTCOV_OPT += '/usr/include/*'
-FASTCOV_OPT += '/usr/lib*/*'
-FASTCOV_OPT += '/usr/share/*'
-FASTCOV_OPT += '*examples/*'
-FASTCOV_OPT += '*include/fstcpp/*'
-FASTCOV_OPT += '*src/obj_dbg/*'
-FASTCOV_OPT += '*src/obj_opt/*.yy.cpp'
-FASTCOV_OPT += '*src/obj_opt/V3Ast*'
-FASTCOV_OPT += '*src/obj_opt/V3Dfg*'
-FASTCOV_OPT += '*src/obj_opt/V3ParseBison.c'
-FASTCOV_OPT += '*test_regress/*'
-# Lines *containing* these substrings will be excluded from *all* coverage
-FASTCOV_OPT += --custom-exclusion-marker
-FASTCOV_OPT += ASTGEN_MEMBERS
-FASTCOV_OPT += ERROR_RSVD_WORD
-FASTCOV_OPT += LCOV_EXCL_LINE
-FASTCOV_OPT += V3ERROR_NA
-FASTCOV_OPT += VL_DEFINE_DEBUG_FUNCTIONS
-FASTCOV_OPT += VL_FATAL
-FASTCOV_OPT += VL_RTTI_IMPL
-FASTCOV_OPT += VL_UNREACHABLE
-FASTCOV_OPT += v3fatalSrc
-# Lines *starting* with these substrings will be ecluded from *branch* coverage
-FASTCOV_OPT += --exclude-br-lines-starting-with
-FASTCOV_OPT += BROKEN_BASE_RTN
-FASTCOV_OPT += BROKEN_RTN
-FASTCOV_OPT += NUM_ASSERT
-FASTCOV_OPT += SELF_CHECK
-FASTCOV_OPT += UASSERT
-FASTCOV_OPT += UINFO
-FASTCOV_OPT += assert
-FASTCOV_OPT += 'if (VL_UNCOVERABLE'
-FASTCOV_OPT += '} else if (VL_UNCOVERABLE'
-
-# 'genhtml' setup
-GENHTML := genhtml
-GENHTML_OPT := -j $(shell nproc)
-GENHTML_OPT += --branch-coverage
-GENHTML_OPT += --demangle-cpp
-GENHTML_OPT += --missed
-GENHTML_OPT += --rc branch_coverage=1
-GENHTML_OPT += --rc genhtml_hi_limit=100
-GENHTML_OPT += --ignore-errors negative
-GENHTML_OPT += --ignore-errors inconsistent
-ifeq ($(COVERAGE_REF_BASE),)
-GENHTML_OPT += --header-title "Code coverage for Verilator $(shell git describe --dirty)"
-else
-GENHTML_OPT += --header-title "Patch coverage for Verilator $(COVERAGE_REF_BASE)..$(COVERAGE_REF_HEAD)$(if $(shell git status --porcelain),-dirty)"
-endif
-GENHTML_OPT += --flat
-GENHTML_OPT += --precision 2
-GENHTML_OPT += --legend
-GENHTML_OPT += --show-proportion
-GENHTML_OPT += --filter brace,blank,range
-
-# There are loads (~20k combined), but using this seems fine on modern hardware
-GCNO_FILES = $(shell find . -name '*.gcno')
-GCDA_FILES = $(shell find . -name '*.gcda')
-
-# Combine all .gcda coverage date files into lcov .info file
-$(COVERAGE_DIR)/verilator.info: $(GCNO_FILES) $(GCDA_FILES)
-	@echo "####################################################################"
-	@echo "# fastcov: combining all .gcda files into lcov .info"
-	@echo "####################################################################"
-	@mkdir -p $(COVERAGE_DIR)
-	/usr/bin/time -f "That took %E" \
-	$(FASTCOV) $(FASTCOV_OPT) --output $@
-
-# Filter combined .info file for patch coverage
-$(COVERAGE_DIR)/verilator-patch.info: $(COVERAGE_DIR)/verilator.info
-	@echo "####################################################################"
-	@echo "# fastcov: Filtering for patch coverage"
-	@echo "####################################################################"
-	rm -f $(COVERAGE_DIR)/empty-patch
-	git diff $(COVERAGE_REF_BASE) -- include src > $(COVERAGE_DIR)/filter.patch
-	[ -s $(COVERAGE_DIR)/filter.patch ] || touch $(COVERAGE_DIR)/empty-patch
-	$(FASTCOV) -C $^ --lcov -o $@ --diff-filter $(COVERAGE_DIR)/filter.patch
-
-# Build coverage report
-$(COVERAGE_DIR)/report/index.html: $(COVERAGE_DIR)/verilator$(if $(COVERAGE_REF_BASE),-patch).info
-	@echo "####################################################################"
-	@echo "# genhtml: Generating coverage report"
-	@echo "####################################################################"
-	@rm -rf $(COVERAGE_DIR)/report
-	[ -f $(COVERAGE_DIR)/empty-patch ] || /usr/bin/time -f "That took %E" \
-	$(GENHTML) $(GENHTML_OPT) --output-directory $(COVERAGE_DIR)/report $^ || true
-	@# Uncommitted changes not tracked, force rebuild on next run if patch coverage
-	@$(if $(COVERAGE_REF_BASE),mv $(COVERAGE_DIR)/verilator-patch.info $(COVERAGE_DIR)/verilator-patch-last.info)
-
-# Convenience targets
-.PHONY: coverage-combine
-coverage-combine: $(COVERAGE_DIR)/verilator.info
-
-# Via recursive make, so the message is always printed
-.PHONY: coverage-report
-coverage-report:
-	@$(MAKE) --no-print-directory $(COVERAGE_DIR)/report/index.html || true
-	@if [ -f $(COVERAGE_DIR)/report/index.html ]; then \
-		echo "####################################################################"; \
-		echo "# Coverage report is at: $(COVERAGE_DIR)/report/index.html"; \
-		echo "# Use 'make coverage-view' to open it in your default browser"; \
-		echo "####################################################################"; \
-	elif [ -f $(COVERAGE_DIR)/empty-patch ]; then \
-		echo "####################################################################"; \
-		echo "# Patch is empty"; \
-		echo "####################################################################"; \
-	else \
-		echo "####################################################################"; \
-		echo "# Failed to create coverage report. Maybe no data, or error?"; \
-		echo "####################################################################"; \
-		false; \
-	fi
-
-# Open covarage report in default web browser
-.PHONY: coverage-view
-coverage-view: coverage-report
-	@test -f $(COVERAGE_DIR)/report/index.html && open $(COVERAGE_DIR)/report/index.html || true
-
-# Deletes all coverage data files (.gcda)
-.PHONY: coverage-zero
-coverage-zero: # 'rm $(GCDA_FILES)' might fail with too many args
-	$(FASTCOV) --zerocounters
-
-endif
-
-######################################################################
-# Clean
-
 maintainer-clean::
 	@echo "This command is intended for maintainers to use;"
 	@echo "rebuilding the deleted files requires autoconf."
@@ -853,8 +473,8 @@ maintainer-clean::
 
 clean mostlyclean distclean maintainer-clean maintainer-copy::
 	for dir in $(SUBDIRS); do \
-		echo making $@ in $$dir ; \
-		$(MAKE) -C $$dir $@ ; \
+	  echo making $@ in $$dir ; \
+	  $(MAKE) -C $$dir $@ ; \
 	done
 
 clean mostlyclean distclean maintainer-clean::
@@ -865,19 +485,28 @@ clean mostlyclean distclean maintainer-clean::
 	rm -f *.tex
 	rm -rf examples/*/obj_dir* examples/*/logs
 	rm -rf test_*/obj_dir
-	rm -rf src/*.tidy include/*.tidy examples/*/*.tidy
-	rm -rf .ruff_cache
 	rm -rf nodist/fuzzer/dictionary
-	rm -rf $(COVERAGE_DIR)
+	rm -rf nodist/obj_dir
 	rm -rf verilator.txt
 
 distclean maintainer-clean::
 	rm -f *.info* *.1 $(INFOS) $(INFOS_OLD) $(VL_INST_MAN_FILES)
-	rm -f Makefile config.status config.cache config.log configure~ TAGS
+	rm -f Makefile config.status config.cache config.log TAGS
 	rm -f verilator_bin* verilator_coverage_bin*
 	rm -f bin/verilator_bin* bin/verilator_coverage_bin*
 	rm -f include/verilated.mk include/verilated_config.h
 
+TAGFILES=${srcdir}/*/*.cpp ${srcdir}/*/*.h ${srcdir}/*/*.in \
+	${srcdir}/*.in ${srcdir}/*.pod
+
+TAGS: $(TAGFILES)
+	etags $(TAGFILES)
+
+.PHONY: doxygen
+
+doxygen:
+	$(MAKE) -C docs doxygen
+
 ######################################################################
 # Distributions
 
@@ -898,21 +527,3 @@ preexist:
 
 maintainer-dist: preexist tag
 	svnorcvs release $(DISTTAGNAME)
-
-######################################################################
-# Python venv
-
-VENV_PATH ?= .venv
-
-.PHONY: venv
-venv:
-	# Create virtual environment using the python3 picked up by configure
-	[ -e $(VENV_PATH) ] || @PYTHON3@ -m venv --system-site-packages $(VENV_PATH)
-	# Install python3 dependencies, with explicit retry
-	$(VENV_PATH)/bin/pip3 install -r python-dev-requirements.txt || \
-	$(VENV_PATH)/bin/pip3 install -r python-dev-requirements.txt
-	@echo
-	@echo "Installed Python virtual environment, in:"
-	@echo "  $(VENV_PATH)"
-	@echo "To activate, run:"
-	@echo "  source $(VENV_PATH)/bin/activate"

README.rst

@@ -1,106 +1,97 @@
-..
-   Github doesn't render images unless absolute URL
-   Do not know of a conditional tag, "only: github" nor "github display" works
-   SPDX-FileCopyrightText: 2003-2026 Wilson Snyder
-   SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+.. Github doesn't render images unless absolute URL
+.. Do not know of a conditional tag, "only: github" nor "github display" works
 
-|badge1| |badge2| |badge3| |badge4| |badge5|
+.. image:: https://img.shields.io/badge/Website-Verilator.org-181717.svg
+    :target: https://verilator.org
+.. image:: https://img.shields.io/badge/License-LGPL%20v3-blue.svg
+    :target: https://www.gnu.org/licenses/lgpl-3.0
+.. image:: https://img.shields.io/badge/License-Artistic%202.0-0298c3.svg
+    :target: https://opensource.org/licenses/Artistic-2.0
+.. image:: https://repology.org/badge/tiny-repos/verilator.svg?header=distro%20packages
+    :target: https://repology.org/project/verilator/versions
+.. image:: https://img.shields.io/docker/pulls/verilator/verilator
+    :target: https://hub.docker.com/r/verilator/verilator
+.. image:: https://api.codacy.com/project/badge/Grade/fa78caa433c84a4ab9049c43e9debc6f
+    :target: https://www.codacy.com/gh/verilator/verilator
+.. image:: https://codecov.io/gh/verilator/verilator/branch/master/graph/badge.svg
+    :target: https://codecov.io/gh/verilator/verilator
+.. image:: https://github.com/verilator/verilator/workflows/build/badge.svg
+    :target: https://github.com/verilator/verilator/actions?query=workflow%3Abuild
 
-|badge7| |badge8|
-
-.. |badge1| image:: https://img.shields.io/badge/Website-Verilator.org-181717.svg
-   :target: https://verilator.org
-
-.. |badge2| image:: https://img.shields.io/badge/License-LGPL%20v3-blue.svg
-   :target: https://www.gnu.org/licenses/lgpl-3.0
-
-.. |badge3| image:: https://img.shields.io/badge/License-Artistic%202.0-0298c3.svg
-   :target: https://opensource.org/licenses/Artistic-2.0
-
-.. |badge4| image:: https://repology.org/badge/tiny-repos/verilator.svg?header=distro%20packages
-   :target: https://repology.org/project/verilator/versions
-
-.. |badge5| image:: https://img.shields.io/docker/pulls/verilator/verilator
-   :target: https://hub.docker.com/r/verilator/verilator
-
-.. |badge7| image:: https://img.shields.io/github/actions/workflow/status/verilator/verilator/build-test.yml?branch=master&label=regressions
-   :target: https://github.com/verilator/verilator/actions/workflows/build-test.yml
-
-.. |badge8| image:: https://img.shields.io/github/actions/workflow/status/verilator/verilator/rtlmeter.yml?branch=master&event=schedule&label=benchmarks
-   :target: https://verilator.github.io/verilator-rtlmeter-results
 
 Welcome to Verilator
 ====================
 
 .. list-table::
 
-   - - **Welcome to Verilator, the fastest Verilog/SystemVerilog simulator.**
-          - Accepts Verilog or SystemVerilog
-          - Performs lint code-quality checks
-          - Compiles into multithreaded C++, or SystemC
-          - Creates JSON to front-end your own tools
+   * - **Welcome to Verilator, the fastest Verilog/SystemVerilog simulator.**
+        * Accepts Verilog or SystemVerilog
+        * Performs lint code-quality checks
+        * Compiles into multithreaded C++, or SystemC
+        * Creates XML to front-end your own tools
      - |Logo|
-   - - |verilator multithreaded performance|
+   * - |verilator multithreaded performance|
      - **Fast**
-          - Outperforms many closed-source commercial simulators
-          - Single- and multithreaded output models
-   - - **Widely Used**
-          - Wide industry and academic deployment
-          - Out-of-the-box support from Arm and RISC-V vendor IP
-          - Over 700 contributors
+        * Outperforms many closed-source commercial simulators
+        * Single- and multithreaded output models
+   * - **Widely Used**
+        * Wide industry and academic deployment
+        * Out-of-the-box support from Arm and RISC-V vendor IP
      - |verilator usage|
-   - - |verilator community|
+   * - |verilator community|
      - **Community Driven & Openly Licensed**
-          - Guided by the `CHIPS Alliance`_ and `Linux Foundation`_
-          - Open, and free as in both speech and beer
-          - More simulation for your verification budget
-   - - **Commercial Support Available**
-          - Commercial support contracts
-          - Design support contracts
-          - Enhancement contracts
+        * Guided by the `CHIPS Alliance`_ and `Linux Foundation`_
+        * Open, and free as in both speech and beer
+        * More simulation for your verification budget
+   * - **Commercial Support Available**
+        * Commercial support contracts
+        * Design support contracts
+        * Enhancement contracts
      - |verilator support|
 
+
 What Verilator Does
 ===================
 
-Verilator is invoked with parameters similar to GCC or Synopsys's VCS. It
+Verilator is invoked with parameters similar to GCC or Synopsys's VCS.  It
 "Verilates" the specified Verilog or SystemVerilog code by reading it,
 performing lint checks, and optionally inserting assertion checks and
 coverage-analysis points. It outputs single- or multithreaded .cpp and .h
 files, the "Verilated" code.
 
-Verilator can automatically generate a simulator executable (using
-``--binary``), or users can write their own C++/SystemC wrapper to
-instantiate the model. The resulting Verilated executable performs the
-design simulation. Verilator also supports linking Verilator-generated
-libraries, optionally encrypted, into other simulators.
+These Verilated C++/SystemC files are then compiled by a C++ compiler
+(gcc/clang/MSVC++), optionally along with a user's own C++/SystemC wrapper
+file, to instantiate the Verilated model. Executing the resulting
+executable performs the design simulation. Verilator also supports linking
+Verilated generated libraries, optionally encrypted, into other simulators.
+
+Verilator may not be the best choice if you are expecting a full-featured
+replacement for a closed-source Verilog simulator, needs SDF annotation,
+mixed-signal simulation, or are doing a quick class project (we recommend
+`Icarus Verilog`_ for classwork.)  However, if you are looking for a path
+to migrate SystemVerilog to C++/SystemC, or want high-speed simulation of
+designs, Verilator is the tool for you.
 
-Verilator supports all design constructs, most verification constructs,
-intra-assignment delays (e.g, `#10`), and events. Tristate-bus (`z`) and
-unknowns (`x`) are handled in limited contexts, in a special manor for
-performance. It currently may not be the best choice if you are expecting a
-full-featured replacement for a closed-source Verilog simulator, performing
-SDF annotation, or mixed-signal simulation. However, if you are looking for
-a path to migrate SystemVerilog to C++/SystemC, or want high-speed
-simulation, Verilator is the tool for you.
 
 Performance
 ===========
 
-Verilator does not directly translate Verilog HDL to C++ or SystemC.
-Rather, Verilator compiles your code into a much faster optimized and
-optionally thread-partitioned model, which is in turn wrapped inside a
-C++/SystemC module. The results are a compiled Verilog model that executes
-even on a single thread over 10x faster than standalone SystemC, and on a
-single thread is about 100 times faster than interpreted Verilog simulators
-such as `Icarus Verilog`_. Another 2-10x speedup might be gained from
+Verilator does not directly translate Verilog HDL to C++ or SystemC. Rather,
+Verilator compiles your code into a much faster optimized and optionally
+thread-partitioned model, which is in turn wrapped inside a C++/SystemC
+module. The results are a compiled Verilog model that executes even on a
+single-thread over 10x faster than standalone SystemC, and on a single
+thread is about 100 times faster than interpreted Verilog simulators such
+as `Icarus Verilog`_. Another 2-10x speedup might be gained from
 multithreading (yielding 200-1000x total over interpreted simulators).
 
-Verilator has typically similar or better performance versus closed-source
-Verilog simulators (e.g., Aldec Riviera-Pro, Cadence Incisive/NC-Verilog,
-Mentor ModelSim/Questa, Synopsys VCS, VTOC, and Pragmatic CVer/CVC). But,
-Verilator is open-sourced, so you can spend on computes rather than
-licenses. Thus, Verilator gives you the best simulation cycles/dollar.
+Verilator has typically similar or better performance versus the
+closed-source Verilog simulators (e.g., Carbon Design Systems Carbonator,
+Modelsim/Questa, Cadence Incisive/NC-Verilog, Synopsys VCS, VTOC, and
+Pragmatic CVer/CVC). But, Verilator is open-sourced, so you can spend on
+computes rather than licenses. Thus, Verilator gives you the best
+simulation cycles/dollar.
+
 
 Installation & Documentation
 ============================
@@ -110,8 +101,8 @@ For more information:
 - `Verilator installation and package directory structure
   <https://verilator.org/install>`_
 
-- `Verilator manual (HTML) <https://verilator.org/verilator_doc.html>`_, or
-  `Verilator manual (PDF) <https://verilator.org/verilator_doc.pdf>`_
+- `Verilator manual (HTML) <https://verilator.org/verilator_doc.html>`_,
+  or `Verilator manual (PDF) <https://verilator.org/verilator_doc.pdf>`_
 
 - `Subscribe to Verilator announcements
   <https://github.com/verilator/verilator-announce>`_
@@ -120,6 +111,7 @@ For more information:
 
 - `Verilator issues <https://verilator.org/issues>`_
 
+
 Support
 =======
 
@@ -136,44 +128,32 @@ Verilator also supports and encourages commercial support models and
 organizations; please see `Verilator Commercial Support
 <https://verilator.org/verilator_commercial_support>`_.
 
+
 Related Projects
 ================
 
-- `Cocotb <https://www.cocotb.org/>`_ - A coroutine-based cosimulation
-  library for writing testbenches in Python which officially supports
-  Verilator.
-
-- `GTKwave <https://gtkwave.sourceforge.net/>`_ - Waveform viewer for
+- `GTKwave <http://gtkwave.sourceforge.net/>`_ - Waveform viewer for
   Verilator traces.
 
-- `Icarus Verilog`_ - Icarus is a highly-featured interpreted Verilog
+- `Icarus Verilog`_ - Icarus is a full-featured interpreted Verilog
   simulator. If Verilator does not support your needs, perhaps Icarus may.
 
-- `Surfer <https://surfer-project.org/>`_ - Web or offline waveform viewer
-  for Verilator traces.
 
 Open License
 ============
 
-Verilator is Copyright 2003-2026 by Wilson Snyder. (Report bugs to
+Verilator is Copyright 2003-2023 by Wilson Snyder. (Report bugs to
 `Verilator Issues <https://verilator.org/issues>`_.)
 
 Verilator is free software; you can redistribute it and/or modify it under
 the terms of either the GNU Lesser General Public License Version 3 or the
 Perl Artistic License Version 2.0. See the documentation for more details.
 
-.. _chips alliance: https://chipsalliance.org
-
-.. _icarus verilog: https://steveicarus.github.io/iverilog
-
-.. _linux foundation: https://www.linuxfoundation.org
-
+.. _CHIPS Alliance: https://chipsalliance.org
+.. _Icarus Verilog: http://iverilog.icarus.com
+.. _Linux Foundation: https://www.linuxfoundation.org
 .. |Logo| image:: https://www.veripool.org/img/verilator_256_200_min.png
-
 .. |verilator multithreaded performance| image:: https://www.veripool.org/img/verilator_multithreaded_performance_bg-min.png
-
 .. |verilator usage| image:: https://www.veripool.org/img/verilator_usage_400x200-min.png
-
 .. |verilator community| image:: https://www.veripool.org/img/verilator_community_400x125-min.png
-
 .. |verilator support| image:: https://www.veripool.org/img/verilator_support_400x125-min.png

REUSE.toml

@@ -1,61 +0,0 @@
-# DESCRIPTION: Verilator default licensing for "reuse lint"
-
-version = 1
-
-[[annotations]]
-path = [
-    "**/.clang-format",
-    "**/.gitattributes",
-    "**/.gitignore",
-    ".clang-tidy",
-    ".codacy.yml",
-    ".devcontainer/devcontainer.json",
-    ".github/**",
-    ".pre-commit-hooks.yaml",
-    ".style.yapf",
-    "CITATION.cff",
-    "CPPLINT.cfg",
-    "ci/docker/buildenv/wavetools.conf",
-    "docs/CONTRIBUTORS",
-    "docs/spelling.txt",
-    "docs/verilated.dox",
-    "examples/**/*.vc",
-    "install-sh",
-    "test_regress/.gdbinit",
-    "test_regress/input.vc",
-    "test_regress/input.xsim.vc",
-    "test_regress/t/*.dat",
-    "test_regress/t/*.gprof",
-    "test_regress/t/*.mem",
-    "test_regress/t/*.out",
-    "test_regress/t/*.tree",
-    "test_regress/t/*.vc",
-    "test_regress/t/t_lint_bsspace_bad.v",
-    "verilator.pc.in",
-]
-SPDX-FileCopyrightText = "2003-2026 Wilson Snyder"
-SPDX-License-Identifier = "CC0-1.0"
-
-[[annotations]]
-path = [
-    "docs/_static/**",
-    "docs/gen/*.rst",
-    "docs/guide/figures/**",
-]
-SPDX-FileCopyrightText = "2003-2026 Wilson Snyder"
-SPDX-License-Identifier = "LGPL-3.0-only OR Artistic-2.0"
-
-[[annotations]]
-path = "test_regress/t/uvm/**"
-SPDX-FileCopyrightText = [
-    "2010-2017 Mentor Graphics Corporation",
-    "2010-2013 Synopsys, Inc.",
-    "2010-2018 Cadence Design Systems, Inc.",
-    "2013 NVIDIA Corporation",
-]
-SPDX-License-Identifier = "Apache-2.0"
-
-[[annotations]]
-path = "include/gtkwave/lz4.*"
-SPDX-FileCopyrightText = "2011-2023 Yann Collet"
-SPDX-License-Identifier = "BSD-2-Clause"

bin/redirect

@@ -1,22 +0,0 @@
-#!/usr/bin/env perl
-######################################################################
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2025-2026 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-#
-######################################################################
-
-require 5.006_001;
-use warnings;
-use FindBin qw($RealBin $RealScript);
-use strict;
-
-my $relpath = RELPATH;  # Substituted during Verilator 'make install'
-
-unshift @ARGV, $RealScript;
-
-exec { "$RealBin/$relpath/$RealScript" } @ARGV;
-die "%Error: Exec failed,";

bin/verilator

@@ -1,10 +1,10 @@
 #!/usr/bin/env perl
 ######################################################################
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2025-2026 Wilson Snyder
+# Copyright 2003-2023 by Wilson Snyder. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 #
 ######################################################################
@@ -15,7 +15,6 @@ use Getopt::Long;
 use FindBin qw($RealBin $RealScript);
 use IO::File;
 use Pod::Usage;
-use Cwd qw(realpath);
 
 use strict;
 use vars qw($Debug @Opt_Verilator_Sw);
@@ -27,29 +26,12 @@ use vars qw($Debug @Opt_Verilator_Sw);
 autoflush STDOUT 1;
 autoflush STDERR 1;
 
-# Guard against unbounded recursive re-entry. Hierarchical / --build flows
-# legitimately re-enter the wrapper a few levels deep (wrapper -> verilator_bin
-# -> make -> wrapper -> ...); a misconfigured VERILATOR_BIN, VERILATOR_GDB or
-# VERILATOR_VALGRIND that points back at this wrapper, however, recurses
-# without bound and exhausts the OS PID table. Use VERILATOR_RUNNING as a
-# depth counter and cap it well above any real nesting.
-my $verilator_running_max = 16;
-my $verilator_running_depth = ($ENV{VERILATOR_RUNNING} || 0) + 1;
-if ($verilator_running_depth > $verilator_running_max) {
-    die "%Error: verilator: re-entered $verilator_running_depth levels deep"
-        . " via \$VERILATOR_RUNNING; check that VERILATOR_BIN, VERILATOR_GDB"
-        . " and VERILATOR_VALGRIND do not resolve back to this wrapper script.\n";
-}
-$ENV{VERILATOR_RUNNING} = $verilator_running_depth;
-
 $Debug = 0;
-my $opt_aslr;
 my $opt_gdb;
 my $opt_rr;
 my $opt_gdbbt;
 my $opt_quiet_exit;
 my $opt_unlimited_stack = 1;
-my $opt_valgrind;
 
 # No arguments can't do anything useful.  Give help
 if ($#ARGV < 0) {
@@ -57,7 +39,6 @@ if ($#ARGV < 0) {
 }
 
 # Insert debugging options up front
-# (VERILATOR_TEST_FLAGS is not a documented nor official supported feature)
 push @ARGV, (split ' ', $ENV{VERILATOR_TEST_FLAGS} || "");
 
 # We sneak a look at the flags so we can do some pre-environment checks
@@ -73,43 +54,20 @@ if (! GetOptions(
           "debug"            => \&debug,
           # "version!"       => \&version,   # Also passthru'ed
           # Switches
-          "aslr!"            => \$opt_aslr,
           "gdb!"             => \$opt_gdb,
           "gdbbt!"           => \$opt_gdbbt,
-          "quiet!"           => \$opt_quiet_exit,  # As -quiet implies -quiet-exit
           "quiet-exit!"      => \$opt_quiet_exit,
           "rr!"              => \$opt_rr,
           "unlimited-stack!" => \$opt_unlimited_stack,
-          "valgrind!"        => \$opt_valgrind,
           # Additional parameters
           "<>"               => sub {},      # Ignored
     )) {
     pod2usage(-exitstatus => 2, -verbose => 0);
 }
 
-# WARNING: $verilator_pkgdatadir_relpath is substituted during Verilator 'make install'
-my $verilator_pkgdatadir_relpath = "..";
-my $verilator_root = realpath("$RealBin/$verilator_pkgdatadir_relpath");
-if (defined $ENV{VERILATOR_ROOT}) {
-    if ((!-d $ENV{VERILATOR_ROOT}) || $verilator_root ne realpath($ENV{VERILATOR_ROOT})) {
-        warn "%Error: verilator: VERILATOR_ROOT is set to inconsistent path. Suggest leaving it unset.\n";
-        warn "%Error: VERILATOR_ROOT=$ENV{VERILATOR_ROOT}\n";
-        exit 1;
-    }
-} else {
-    print "export VERILATOR_ROOT='$verilator_root'\n" if $Debug;
-    $ENV{VERILATOR_ROOT} = $verilator_root;
-}
-
-my $lldb_selected = 0;
-if (($opt_gdb || $opt_gdbbt) && !gdb_works()) {
-    if (lldb_works()) {
-        $lldb_selected = 1;
-    } else {
-        warn "-Info: --gdb or --gdbbt ignored: gdb doesn't seem to be working\n" if $Debug;
-        $opt_gdbbt = 0;
-        $opt_gdb = 0;
-    }
+if ($opt_gdbbt && !gdb_works()) {
+    warn "-Info: --gdbbt ignored: gdb doesn't seem to be working\n" if $Debug;
+    $opt_gdbbt = 0;
 }
 
 # Determine runtime flags and run
@@ -119,84 +77,47 @@ if (($opt_gdb || $opt_gdbbt) && !gdb_works()) {
 # then see exactly the contents of @Opt_Verilator_Sw.
 my @quoted_sw = map { sh_escape($_) } @Opt_Verilator_Sw;
 if ($opt_gdb) {
-    # Note, we must use double-quotes ("run <switches>")
-    # and not single ('run <switches>') below. Bash swallows
-    # escapes as you would expect in a double-quoted string.
-    # That's not true for a single-quoted string, where \'
-    # actually terminates the string -- not what we want!
-    if ($lldb_selected) {
-        # Generic lldb interactive
-        run (ulimit_stack_unlimited()
-             . aslr(0)
-             . ($ENV{VERILATOR_GDB} || "lldb")
-             . " " . verilator_bin()
-             # Note, uncomment to set breakpoints before running:
-             #  . " -o 'b main'"
-             . " -o 'b exit'"  # Need break to keep process active for bt
-             . " -o \"run " . join(' ', @quoted_sw) . "\""
-             . " -o 'settings set term-width 1024'"
-             . " -o 'bt'");
-    } else {
-        # Generic GDB interactive
-        run (ulimit_stack_unlimited()
-             . aslr(0)
-             . ($ENV{VERILATOR_GDB} || "gdb")
-             . " " . verilator_bin()
-             # Note, uncomment to set breakpoints before running:
-             #  . " -ex 'break main'"
-             . " -ex \"run " . join(' ', @quoted_sw) . "\""
-             . " -ex 'set width 0'"
-             . " -ex 'bt'");
-    }
+    # Generic GDB interactive
+    run (ulimit_stack_unlimited()
+         . aslr_off()
+         . ($ENV{VERILATOR_GDB} || "gdb")
+         . " " . verilator_bin()
+         # Note, uncomment to set breakpoints before running:
+         #  ." -ex 'break main'"
+
+         # Note, we must use double-quotes ("run <switches>")
+         # and not single ('run <switches>') below. Bash swallows
+         # escapes as you would expect in a double-quoted string.
+         # That's not true for a single-quoted string, where \'
+         # actually terminates the string -- not what we want!
+         . " -ex \"run " . join(' ', @quoted_sw) . "\""
+         . " -ex 'set width 0'"
+         . " -ex 'bt'");
 } elsif ($opt_rr) {
     # Record with rr
     run (ulimit_stack_unlimited()
-         . aslr(0)
+         . aslr_off()
          . "rr record " . verilator_bin()
          . " " . join(' ', @quoted_sw));
 } elsif ($opt_gdbbt && $Debug) {
-    # Run under debugger to get gdbbt
-    if ($lldb_selected) {
-        run (ulimit_stack_unlimited()
-             . aslr(0)
-             . ($ENV{VERILATOR_GDB} || "lldb")
-             . " " . verilator_bin()
-             . " -o 'b exit'"  # Need break to keep process active for bt
-             . " --batch --source-quietly"
-             . " -o \"run " . join(' ', @quoted_sw)."\""
-             . " -o 'settings set term-width 1024'"
-             . " -o 'bt' -o 'quit'");
-    } else {
-        run (ulimit_stack_unlimited()
-             . aslr(0)
-             . ($ENV{VERILATOR_GDB} || "gdb")
-             . " " . verilator_bin()
-             . " --batch --quiet --return-child-result"
-             . " -ex \"run " . join(' ', @quoted_sw)."\""
-             . " -ex 'set width 0'"
-             . " -ex 'bt' -ex 'quit'");
-    }
-} elsif ($opt_valgrind) {
-    # Run under valgrind
-    my $valgrind_bin = ($ENV{VERILATOR_VALGRIND} || "valgrind --error-exitcode=1 --max-stackframe=2815880"
-        # Magic number suggested by Valgrind, may need to be increased in future
-        # if you get warnings. See: https://valgrind.org/docs/manual/manual-core.html#opt.max-stackframe
-        );
-
+    # Run under GDB to get gdbbt
     run (ulimit_stack_unlimited()
-         . aslr(0)
-         . $valgrind_bin
+         . aslr_off()
+         . "gdb"
          . " " . verilator_bin()
-         . " " . join(' ', @quoted_sw));
+         . " --batch --quiet --return-child-result"
+         . " -ex \"run " . join(' ', @quoted_sw)."\""
+         . " -ex 'set width 0'"
+         . " -ex 'bt' -ex 'quit'");
 } elsif ($Debug) {
     # Debug
     run(ulimit_stack_unlimited()
-        . aslr(0)
+        . aslr_off()
         . verilator_bin()
         . " " . join(' ', @quoted_sw));
 } else {
-    # Normal, non-gdb
-    run(ulimit_stack_unlimited() . aslr(1) . verilator_bin() . " " . join(' ', @quoted_sw));
+    # Normal, non gdb
+    run(ulimit_stack_unlimited() . verilator_bin() . " " . join(' ', @quoted_sw));
 }
 
 #----------------------------------------------------------------------
@@ -216,13 +137,30 @@ sub debug {
 # Builds
 
 sub verilator_bin {
+    my $bin = "";
+    # Use VERILATOR_ROOT if defined, else assume verilator_bin is in the search path
     my $basename = ($ENV{VERILATOR_BIN}
                     || ($Debug ? "verilator_bin_dbg" : "verilator_bin"));
-    if (-x "$RealBin/$basename" || -x "$RealBin/$basename.exe") {
-        return "$RealBin/$basename";
+    if (defined($ENV{VERILATOR_ROOT})) {
+        my $dir = $ENV{VERILATOR_ROOT};
+        if (-x "$dir/bin/$basename"
+            || -x "$dir/bin/$basename.exe") {  # From a "make install" into VERILATOR_ROOT
+            $bin = "$dir/bin/$basename";
+        } else {
+            $bin = "$dir/$basename";  # From pointing to kit directory
+        }
     } else {
-        return $basename;  # Find in PATH
+        if (-x "$RealBin/$basename"
+            || -x "$RealBin/$basename.exe") {
+            $bin = "$RealBin/$basename";  # From path/to/verilator with verilator_bin installed
+        } else {
+            $bin = $basename;  # Find in PATH
+        }
+        # Note we don't look under bin/$basename which would be right if running
+        # in the kit dir. Running that would likely break, since
+        # VERILATOR_ROOT wouldn't be set and Verilator won't find internal files.
     }
+    return $bin;
 }
 
 #######################################################################
@@ -231,9 +169,9 @@ sub verilator_bin {
 
 sub gdb_works {
     $! = undef;  # Cleanup -x
-    system("gdb /bin/sh"
+    system("gdb /bin/echo"
            . " --batch-silent --quiet --return-child-result"
-           . " -ex 'run -c exit'"  # `/bin/sh -c exit
+           . " -ex 'run -n'"  # `echo -n`
            . " -ex 'set width 0'"
            . " -ex 'bt'"
            . " -ex 'quit'");
@@ -241,57 +179,21 @@ sub gdb_works {
     return $status == 0;
 }
 
-sub lldb_works {
-    $! = undef;  # Cleanup -x
-    # macOS system integrity stops attach to system binaries like /bin/sh
-    system("lldb --version"
-           . " --batch --source-quietly"
-           . " -o 'settings set term-width 1024'"
-           . " -o 'bt'"
-           . " -o 'quit'");
-    my $status = $?;
-    return $status == 0;
-}
-
-sub aslr {
-    my $want_on = shift;
-    $want_on = $opt_aslr if defined $opt_aslr;
-    if (!$want_on) {
-        my $ok = `setarch --addr-no-randomize echo ok 2>/dev/null` || "";
-        if ($ok =~ /ok/) {
-            return "setarch --addr-no-randomize ";
-        }
+sub aslr_off {
+    my $ok = `setarch --addr-no-randomize echo ok 2>/dev/null` || "";
+    if ($ok =~ /ok/) {
+        return "setarch --addr-no-randomize ";
+    } else {
+        return "";
     }
-    return "";
 }
 
 sub ulimit_stack_unlimited {
     return "" if !$opt_unlimited_stack;
-    my $limit = "unlimited";
-    # AddressSanitizer doesn't work with 'ulimit -s unlimted'
-    if (`${\(verilator_bin())} --get-supported DEV_ASAN` eq "1\n") {
-        # Use host 'physical memory / #cores / 8' instead
-        if ($^O eq "darwin") {
-            my $membytes = `sysctl -n hw.memsize`;
-            chomp $membytes;
-            my $ncpu = `sysctl -n hw.ncpu`;
-            chomp $ncpu;
-            $limit = int(int($membytes / 1024) / $ncpu / 8);
-        } else {
-            open(my $fh, "<", "/proc/meminfo") || die "Can't read host memory for asan";
-            while (<$fh>) {
-                if (m/MemTotal:\s+(\d+)\s+kB/) {
-                    $limit = int(int($1)/`nproc`/8);
-                    last;
-                }
-            }
-            close($fh);
-        }
-    }
-    system("ulimit -s $limit 2>/dev/null");
+    system("ulimit -s unlimited 2>/dev/null");
     my $status = $?;
     if ($status == 0) {
-        return "ulimit -s $limit 2>/dev/null; exec ";
+        return "ulimit -s unlimited 2>/dev/null; exec ";
     } else {
         return "";
     }
@@ -312,18 +214,17 @@ sub run {
             warn "%Error: export VERILATOR_ROOT=" . ($ENV{VERILATOR_ROOT} || "") . "\n";
             warn "%Error: $command\n";
         }
-        my $signal = ($status & 127);
-        if ($signal) {
-            if ($signal == 4  # SIGILL
-                || $signal == 8  # SIGFPA
-                || $signal == 11) {  # SIGSEGV
+        if ($status & 127) {
+            if (($status & 127) == 4  # SIGILL
+                || ($status & 127) == 8  # SIGFPA
+                || ($status & 127) == 11) {  # SIGSEGV
                 warn "%Error: Verilator internal fault, sorry. "
                     . "Suggest trying --debug --gdbbt\n" if !$Debug;
-            } elsif ($signal == 6) {  # SIGABRT
+            } elsif (($status & 127) == 6) {  # SIGABRT
                 warn "%Error: Verilator aborted. "
                     . "Suggest trying --debug --gdbbt\n" if !$Debug;
             } else {
-                warn "%Error: Verilator threw signal $signal. "
+                warn "%Error: Verilator threw signal $status. "
                     . "Suggest trying --debug --gdbbt\n" if !$Debug;
             }
         }
@@ -331,8 +232,8 @@ sub run {
             warn "%Error: Command Failed $command\n";
         }
         exit $! if $!;  # errno
-        exit $? >> 8 if $? >> 8;  # pass along child exit code
-        exit 128 + $signal;  # last resort
+        exit $? >> 8 if $? >> 8;  # child exit status
+        exit 255;  # last resort
     }
 }
 
@@ -342,7 +243,7 @@ sub sh_escape {
     # This is similar to quotemeta() but less aggressive.
     # There's no need to escape hyphens, periods, or forward slashes
     # for the shell as these have no special meaning to the shell.
-    $arg =~ s/([^0-9a-zA-Z_\-\+\=\.\/:])/\\$1/g;
+    $arg =~ s/([^0-9a-zA-Z_\-\+\=\.\/])/\\$1/g;
     return $arg;
 }
 
@@ -355,7 +256,8 @@ __END__
 
 =head1 NAME
 
-Verilator - Lint, compile and simulate SystemVerilog code using C++/SystemC
+Verilator - Translate and simulate SystemVerilog code using C++/SystemC
+
 
 =head1 SYNOPSIS
 
@@ -396,11 +298,7 @@ detailed descriptions of these arguments.
      +1800-2009ext+<ext>        Use SystemVerilog 2009 with file extension <ext>
      +1800-2012ext+<ext>        Use SystemVerilog 2012 with file extension <ext>
      +1800-2017ext+<ext>        Use SystemVerilog 2017 with file extension <ext>
-     +1800-2023ext+<ext>        Use SystemVerilog 2023 with file extension <ext>
-    --no-aslr                   Disable address space layout randomization
-    --no-assert                 Disable all assertions
-    --no-assert-case            Disable unique/unique0/priority-case assertions
-    --assert-unroll-limit <iter> Max SVA assertion repetition before erroring
+    --assert                    Enable all assertions
     --autoflush                 Flush streams after all $displays
     --bbox-sys                  Blackbox unknown $system calls
     --bbox-unsup                Blackbox unsupported language features
@@ -409,18 +307,15 @@ detailed descriptions of these arguments.
     --build-dep-bin <filename>  Override build dependency Verilator binary
     --build-jobs <jobs>         Parallelism for --build
     --cc                        Create C++ output
+    --cdc                       Clock domain crossing analysis
      -CFLAGS <flags>            C++ compiler arguments for makefile
+    --clk <signal-name>         Mark specified signal as clock
+    --no-clk <signal-name>      Prevent marking specified signal as clock
     --compiler <compiler-name>  Tune for specified C++ compiler
-    --compiler-include          Include additional header in the precompiled one
-    --constraint-array-limit <size>   Maximum array size for constraint array reduction
     --converge-limit <loops>    Tune convergence settle time
     --coverage                  Enable all coverage
-    --coverage-expr             Enable expression coverage
-    --coverage-expr-max <value>     Maximum permutations allowed for an expression
-    --coverage-fsm              Enable FSM state/arc coverage
     --coverage-line             Enable line coverage
     --coverage-max-width <width>   Maximum array depth for coverage
-    --coverage-per-instance     Enable per-instance coverage counters
     --coverage-toggle           Enable toggle coverage
     --coverage-underscore       Enable coverage of _signals
     --coverage-user             Enable SVL user coverage
@@ -430,31 +325,21 @@ detailed descriptions of these arguments.
     --no-debug-leak             Disable leaking memory in --debug mode
     --debugi <level>            Enable debugging at a specified level
     --debugi-<srcfile> <level>  Enable debugging a source file at a level
-    --no-decoration             Disable comments and lower spacing level
-    --decorations <level>       Set output comment and spacing level
+    --no-decoration             Disable comments and symbol decorations
     --default-language <lang>   Default language to parse
      +define+<var>=<value>      Set preprocessor define
-    --diagnostics-sarif         Enable SARIF diagnostics output
-    --diagnostics-sarif-output <filename>  Set SARIF diagnostics output file
     --dpi-hdr-only              Only produce the DPI header file
-    --dump-<srcfile>            Enable dumping everything in source file
-    --dump-ast-patterns         Enable dumping Ast pattern statistics
     --dump-defines              Show preprocessor defines with -E
     --dump-dfg                  Enable dumping DfgGraphs to .dot files
-    --dump-dfg-patterns         Enable dumping Dfg pattern statistics
     --dump-graph                Enable dumping V3Graphs to .dot files
-    --dump-inputs               Enable dumping preprocessed input files
     --dump-tree                 Enable dumping Ast .tree files
     --dump-tree-addrids         Use short identifiers instead of addresses
-    --dump-tree-dot             Enable dumping Ast .tree.dot debug files
-    --dump-tree-json            Enable dumping Ast .tree.json files and .tree.meta.json file
-    --dumpi-<srcfile> <level>   Enable dumping everything in source file at level
+    --dump-<srcfile>            Enable dumping everything in source file
     --dumpi-dfg <level>         Enable dumping DfgGraphs to .dot files at level
     --dumpi-graph <level>       Enable dumping V3Graphs to .dot files at level
     --dumpi-tree <level>        Enable dumping Ast .tree files at level
-    --dumpi-tree-json <level>   Enable dumping Ast .tree.json files at level
+    --dumpi-<srcfile> <level>   Enable dumping everything in source file at level
      -E                         Preprocess, but do not compile
-    --emit-accessors            Emit getter and setter methods for model top class
     --error-limit <value>       Abort after this number of errors
     --exe                       Link to create executable
     --expand-limit <value>      Set expand optimization limit
@@ -462,81 +347,55 @@ detailed descriptions of these arguments.
      -f <file>                  Parse arguments from a file
      -FI <file>                 Force include of a file
     --flatten                   Force inlining of all modules, tasks and functions
-    --fourstate                 Enable fourstate logic
-    --no-fourstate              Disable fourstate logic
-    --func-recursion-depth <value>  Maximum recursive constant function depth
-    --future0 <option>          Ignore an option for compatibility
-    --future1 <option>          Ignore an option with argument for compatibility
      -fno-<optimization>        Disable internal optimization stage
      -G<name>=<value>           Overwrite top-level parameter
     --gate-stmts <value>        Tune gate optimizer depth
     --gdb                       Run Verilator under GDB interactively
     --gdbbt                     Run Verilator under GDB for backtrace
     --generate-key              Create random key for --protect-key
-    --get-supported <feature>   Get if feature is supported
     --getenv <var>              Get environment variable with defaults
-    --help                      Show this help
+    --get-supported <feature>   Get if feature is supported
+    --help                      Display this help
     --hierarchical              Enable hierarchical Verilation
-    --hierarchical-block <block>  Internal use only for --hierarchical
-    --hierarchical-child <block>  Internal use only for --hierarchical
-    --hierarchical-params-file <name>  Internal option that specifies parameters file for hier blocks
-    --hierarchical-threads <threads>  Number of threads for hierarchical scheduling
      -I<dir>                    Directory to search for includes
     --if-depth <value>          Tune IFDEPTH warning
      +incdir+<dir>              Directory to search for includes
-    --inline-cfuncs <value>     Inline CFuncs with <=value nodes (0=off)
-    --inline-cfuncs-product <value>  Inline CFuncs if size*calls <= value
     --inline-mult <value>       Tune module inlining
     --instr-count-dpi <value>   Assumed dynamic instruction count of DPI imports
      -j <jobs>                  Parallelism for --build-jobs/--verilate-jobs
-    --no-json-edit-nums         Don't dump editNum in .tree.json files
-    --no-json-ids               Don't use short identifiers instead of addresses/paths in .tree.json
-    --json-only                 Create JSON parser output (.tree.json and .meta.json)
-    --json-only-meta-output <filename>  Set .tree.meta.json output filename
-    --json-only-output <filename>       Set .tree.json output filename
     --l2-name <value>           Verilog scope name of the top module
     --language <lang>           Default language standard to parse
      -LDFLAGS <flags>           Linker pre-object arguments for makefile
-     -libmap                    Specify library mapping file
     --lib-create <name>         Create a DPI library
      +libext+<ext>+[ext]...     Extensions for finding modules
-     +librescan                 Ignored for compatibility
     --lint-only                 Lint, but do not make output
-    --localize-max-size <value>  Tune localize optimization variable size
-    --main                      Generate C++ main() file
-    --main-top-name             Specify top name passed to Verilated model in generated C++ main
     --make <build-tool>         Generate scripts for specified build tool
      -MAKEFLAGS <flags>         Arguments to pass to make during --build
+    --main                      Generate C++ main() file
+    --main-top-name             Specify top name passed to Verilated model in generated C++ main
     --max-num-width <value>     Maximum number width (default: 64K)
     --Mdir <directory>          Name of output object directory
     --MMD                       Create .d dependency files
     --mod-prefix <topname>      Name to prepend to lower classes
     --MP                        Create phony dependency targets
      +notimingchecks            Ignored
-     -o <executable>            Name of final executable
      -O0                        Disable optimizations
-     -O1                        Default optimizations
-     -O2                        Stronger optimizations
      -O3                        High-performance optimizations
      -O<optimization-letter>    Selectable optimizations
-    --output-groups <numfiles>  Group .cpp files into larger ones
+     -o <executable>            Name of final executable
+    --no-order-clock-delay      Disable ordering clock enable assignments
     --output-split <statements>          Split .cpp files into pieces
     --output-split-cfuncs <statements>   Split model functions
     --output-split-ctrace <statements>   Split tracing functions
      -P                         Disable line numbers and blanks with -E
     --pins-bv <bits>            Specify types for top-level ports
-    --pins-inout-enables        Specify that __en and __out signals be created for inouts
     --pins-sc-biguint           Specify types for top-level ports
     --pins-sc-uint              Specify types for top-level ports
-    --pins-sc-uint-bool         Specify types for top-level ports
     --pins-uint8                Specify types for top-level ports
     --no-pins64                 Don't use uint64_t's for 33-64 bit sigs
     --pipe-filter <command>     Filter all input through a script
+    --pp-comments               Show preprocessor comments with -E
     --prefix <topname>          Name of top-level class
-    --preproc-comments          Include preprocessor comments in the output with -E
-    --preproc-defines           Include preprocessor defines in the output with -E
-    --preproc-resolve           Include all found modules in the output with -E
-    --preproc-token-limit       Maximum tokens on a line allowed by preprocessor
     --private                   Debugging; see docs
     --prof-c                    Compile C++ code with profiling
     --prof-cfuncs               Name functions for profiling
@@ -545,72 +404,58 @@ detailed descriptions of these arguments.
     --protect-ids               Hash identifier names for obscurity
     --protect-key <key>         Key for symbol protection
     --protect-lib <name>        Create a DPI protected library
-    --public                    Mark signals as public; see docs
-    --public-depth <level>      Mark public to specified module depth
-    --public-flat-rw            Mark all variables, etc as public_flat_rw
-    --public-ignore             Ignore all public comment markings
+    --public                    Debugging; see docs
     --public-params             Mark all parameters as public_flat
+    --public-flat-rw            Mark all variables, etc as public_flat_rw
      -pvalue+<name>=<value>     Overwrite toplevel parameter
-    --quiet                     Minimize additional printing
-    --quiet-build               Don't print build progress
     --quiet-exit                Don't print the command on failure
-    --quiet-stats               Don't print statistics
     --relative-includes         Resolve includes relative to current file
-    --reloop-limit <value>      Minimum iterations for forming loops
-    --replication-limit <value> Replication concatenation limit (default: 8k)
+    --reloop-limit              Minimum iterations for forming loops
     --report-unoptflat          Extra diagnostics for UNOPTFLAT
     --rr                        Run Verilator and record with rr
-    --runtime-debug             Enable model runtime debugging
     --savable                   Enable model save-restore
     --sc                        Create SystemC output
-    --sched-zero-delay          Specify #0 delay support
     --no-skip-identical         Disable skipping identical output
     --stats                     Create statistics file
     --stats-vars                Provide statistics on variables
-    --no-std                    Prevent loading standard files
-    --no-std-package            Prevent parsing standard package
-    --no-std-waiver             Prevent parsing standard lint waivers
-    --no-stop-fail              Do not call $stop when assertion fails
+    --no-std                    Prevent parsing standard library
+    --structs-packed            Convert all unpacked structures to packed structures
      -sv                        Enable SystemVerilog parsing
-     +systemverilogext+<ext>    Synonym for +1800-2023ext+<ext>
+     +systemverilogext+<ext>    Synonym for +1800-2017ext+<ext>
     --threads <threads>         Enable multithreading
     --threads-dpi <mode>        Enable multithreaded DPI
     --threads-max-mtasks <mtasks>  Tune maximum mtask partitioning
-    --timescale <timescale>     Sets default timescale
-    --timescale-override <timescale>  Overrides all timescales
     --timing                    Enable timing support
     --no-timing                 Disable timing support
+    --timescale <timescale>     Sets default timescale
+    --timescale-override <timescale>  Overrides all timescales
     --top <topname>             Alias of --top-module
     --top-module <topname>      Name of top-level input module
-    --trace                     Enable VCD waveform creation
+    --trace                     Enable waveform creation
     --trace-coverage            Enable tracing of coverage
     --trace-depth <levels>      Depth of tracing
     --trace-fst                 Enable FST waveform creation
-    --trace-max-array <depth>   Maximum array depth for tracing
-    --trace-max-width <width>   Maximum bit width for tracing
+    --trace-max-array <depth>   Maximum bit width for tracing
+    --trace-max-width <width>   Maximum array depth for tracing
     --trace-params              Enable tracing of parameters
-    --trace-saif                Enable SAIF file creation
     --trace-structs             Enable tracing structure names
+    --trace-threads <threads>   Enable FST waveform creation on separate threads
     --no-trace-top              Do not emit traces for signals in the top module generated by verilator
     --trace-underscore          Enable tracing of _signals
-    --trace-vcd                 Enable VCD waveform creation
      -U<var>                    Undefine preprocessor define
     --no-unlimited-stack        Don't disable stack size limit
     --unroll-count <loops>      Tune maximum loop iterations
-    --unroll-limit <loops>      Maximum loop iterations before assuming infinite loop
     --unroll-stmts <stmts>      Tune maximum loop body size
     --unused-regexp <regexp>    Tune UNUSED lint signals
      -V                         Verbose version and config
      -v <filename>              Verilog library
-    --valgrind                  Run Verilator under valgrind
-    --no-verilate               Skip Verilation and just compile previously Verilated code
     --verilate-jobs             Job threads for Verilation stage
+    --no-verilate               Skip Verilation and just compile previously Verilated code
      +verilog1995ext+<ext>      Synonym for +1364-1995ext+<ext>
      +verilog2001ext+<ext>      Synonym for +1364-2001ext+<ext>
-    --version                   Show program version and exits
+    --version                   Displays program version and exits
     --vpi                       Enable VPI compiles
-    --waiver-multiline          Create multiline --match for waivers
-    --waiver-output <filename>  Create a waiver file based on linter warnings
+    --waiver-output <filename>  Create a waiver file based on the linter warnings
      -Wall                      Enable all style warnings
      -Werror-<message>          Convert warnings to errors
      -Wfuture-<message>         Disable unknown message warnings
@@ -619,7 +464,6 @@ detailed descriptions of these arguments.
      -Wno-fatal                 Disable fatal exit on warnings
      -Wno-lint                  Disable all lint warnings
      -Wno-style                 Disable all style warnings
-     -work <libname>            Set config library for following files
      -Wpedantic                 Warn on compliance-test issues
      -Wwarn-<message>           Enable specified warning message
      -Wwarn-lint                Enable lint warning message
@@ -627,6 +471,8 @@ detailed descriptions of these arguments.
     --x-assign <mode>           Assign non-initial Xs to this value
     --x-initial <mode>          Assign initial Xs to this value
     --x-initial-edge            Enable initial X->0 and X->1 edge triggers
+    --xml-only                  Create XML parser output
+    --xml-output                XML output filename
      -y <dir>                   Directory to search for modules
 
 This is a short summary of the simulation runtime arguments, i.e. for the
@@ -636,33 +482,26 @@ description of these arguments.
 
 =for VL_SPHINX_EXTRACT "_build/gen/args_verilated.rst"
 
-     +verilator+assert+lock                Lock assertion status changes at startup
-     +verilator+coverage+file+<filename>   Set coverage output filename
-     +verilator+debug                      Enable debugging
-     +verilator+debugi+<value>             Enable debugging at a level
-     +verilator+error+limit+<value>        Set error limit
-     +verilator+help                       Show help
-     +verilator+log+file+<filename>        Log stdout and stderr output to filename
-     +verilator+noassert                   Disable assert checking
+     +verilator+debug                  Enable debugging
+     +verilator+debugi+<value>         Enable debugging at a level
+     +verilator+error+limit+<value>    Set error limit
+     +verilator+help                   Display help
+     +verilator+noassert               Disable assert checking
      +verilator+prof+exec+file+<filename>  Set execution profile filename
      +verilator+prof+exec+start+<value>    Set execution profile starting point
      +verilator+prof+exec+window+<value>   Set execution profile duration
      +verilator+prof+vlt+file+<filename>   Set PGO profile filename
-     +verilator+quiet                      Minimize additional printing
-     +verilator+rand+reset+<value>         Set random reset technique
-     +verilator+seed+<value>               Set random seed
-     +verilator+solver+file+<filename>     Set random solver log filename
-     +verilator+V                          Show verbose version and config
-     +verilator+version                    Show version and exit
-     +verilator+vpi+<library>[:<bootstrap>]  Load VPI shared library
-     +verilator+wno+unsatconstr+<value>    Disable constraint warnings
+     +verilator+rand+reset+<value>     Set random reset technique
+     +verilator+seed+<value>           Set random seed
+     +verilator+V                      Verbose version and config
+     +verilator+version                Show version and exit
 
 
 =head1 DISTRIBUTION
 
 The latest version is available from L<https://verilator.org>.
 
-Copyright 2003-2026 by Wilson Snyder. This program is free software; you can
+Copyright 2003-2023 by Wilson Snyder. This program is free software; you can
 redistribute it and/or modify the Verilator internals under the terms of
 either the GNU Lesser General Public License Version 3 or the Perl Artistic
 License Version 2.0.

bin/verilator_ccache_report

@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-# mypy: disallow-untyped-defs
 # pylint: disable=C0103,C0114,C0115,C0116,C0123,C0209,C0301,R0902,R0913,R0914,R0912,R0915,W0621
 ######################################################################
 
@@ -17,15 +16,19 @@ parser = argparse.ArgumentParser(
 
     For documentation see
     https://verilator.org/guide/latest/exe_verilator_ccache_report.html""",
-    epilog="""This program is free software; you can redistribute it and/or modify it
-under the terms of either the GNU Lesser General Public License Version 3
-or the Perl Artistic License Version 2.0.
+    epilog=
+    """Copyright 2002-2023 by Wilson Snyder. This program is free software; you
+can redistribute it and/or modify it under the terms of either the GNU
+Lesser General Public License Version 3 or the Perl Artistic License
+Version 2.0.
 
-SPDX-FileCopyrightText: 2002-2026 Wilson Snyder
-SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-""")
+SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0""")
 
-parser.add_argument('-o', type=pathlib.Path, metavar="OUTFILE", required=True, help='output file')
+parser.add_argument('-o',
+                    type=argparse.FileType('w'),
+                    metavar="OUTFILE",
+                    required=True,
+                    help='output file')
 parser.add_argument('logdir', type=pathlib.Path, help='log directory')
 
 args = parser.parse_args()
@@ -34,7 +37,7 @@ results = {}
 elapsed = {}
 
 
-def toDateTime(s: str) -> datetime:
+def toDateTime(s):
     return datetime.strptime(s, "%Y-%m-%dT%H:%M:%S.%f")
 
 
@@ -51,39 +54,44 @@ for logfile in args.logdir.iterdir():
             match = re.match(r'\[(\S+)\s.*Result: (.*)$', line)
             if match:
                 assert obj is not None
-                assert start is not None
                 elapsed[obj] = toDateTime(match.group(1)) - start
                 results[obj] = match.group(2)
 
-with args.o.open("w") as ofd:
-    ofd.write("#" * 80 + "\n")
-    ofd.write("ccache report (from verilator_ccache_report) :\n")
+args.o.write("#" * 80 + "\n")
+args.o.write("ccache report (from verilator_ccache_report) :\n")
 
-    if not results:
-        ofd.write("\nAll object files up to date\n")
-    else:
-        ofd.write("\nCompiled object files:\n")
-        wnames = max(len(_) for _ in results) + 1
-        wresults = max(len(_) for _ in results.values()) + 1
-        for k in sorted(results.keys()):
-            ofd.write("{:{wnames}} : {:{wresults}} : {}s\n".format(k,
-                                                                   results[k],
-                                                                   elapsed[k].total_seconds(),
-                                                                   wnames=wnames,
-                                                                   wresults=wresults))
+if not results:
+    args.o.write("\nAll object files up to date\n")
+else:
+    args.o.write("\nCompiled object files:\n")
+    wnames = max(len(_) for _ in results) + 1
+    wresults = max(len(_) for _ in results.values()) + 1
+    for k in sorted(results.keys()):
+        args.o.write("{:{wnames}} : {:{wresults}} : {}s\n".format(
+            k,
+            results[k],
+            elapsed[k].total_seconds(),
+            wnames=wnames,
+            wresults=wresults))
 
-        ofd.write("\nSummary:\n")
-        counts = collections.Counter(_ for _ in results.values())
-        total = sum(counts.values())
-        for k in sorted(counts.keys()):
-            c = counts[k]
-            ofd.write("{:{width}}| {} ({:.2%})\n".format(k, c, c / total, width=wresults))
+    args.o.write("\nSummary:\n")
+    counts = collections.Counter(_ for _ in results.values())
+    total = sum(counts.values())
+    for k in sorted(counts.keys()):
+        c = counts[k]
+        args.o.write("{:{width}}| {} ({:.2%})\n".format(k,
+                                                        c,
+                                                        c / total,
+                                                        width=wresults))
 
-        ofd.write("\nLongest:\n")
-        longest = sorted(list(elapsed.items()), key=lambda kv: -kv[1].total_seconds())
-        for i, (k, v) in enumerate(longest):
-            ofd.write("{:{width}}| {}s\n".format(k, v.total_seconds(), width=wnames))
-            if i > 4:
-                break
+    args.o.write("\nLongest:\n")
+    longest = sorted(list(elapsed.items()),
+                     key=lambda kv: -kv[1].total_seconds())
+    for i, (k, v) in enumerate(longest):
+        args.o.write("{:{width}}| {}s\n".format(k,
+                                                v.total_seconds(),
+                                                width=wnames))
+        if i > 4:
+            break
 
-    ofd.write("#" * 80 + "\n")
+args.o.write("#" * 80 + "\n")

bin/verilator_coverage

@@ -1,10 +1,10 @@
 #!/usr/bin/env perl
 ######################################################################
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2025-2026 Wilson Snyder
+# Copyright 2003-2023 by Wilson Snyder. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 #
 ######################################################################
 
@@ -52,7 +52,7 @@ if (! GetOptions (
     pod2usage(-exitstatus => 2, -verbose => 0);
 }
 
-# Normal, non-gdb
+# Normal, non gdb
 run(verilator_coverage_bin()
     . " " . join(' ', @Opt_Verilator_Sw));
 
@@ -118,24 +118,21 @@ sub run {
             warn "%Error: export VERILATOR_ROOT=" . ($ENV{VERILATOR_ROOT} || "") . "\n";
             warn "%Error: $command\n";
         }
-        my $signal = ($status & 127);
-        if ($signal) {
-            if ($signal == 4  # SIGILL
-                || $signal == 8  # SIGFPA
-                || $signal == 11) {  # SIGSEGV
+        if ($status & 127) {
+            if (($status & 127) == 8 || ($status & 127) == 11) {  # SIGFPA or SIGSEGV
                 warn "%Error: Verilator_coverage internal fault, sorry.\n" if !$Debug;
-            } elsif ($signal == 6) {  # SIGABRT
+            } elsif (($status & 127) == 6) {  # SIGABRT
                 warn "%Error: Verilator_coverage aborted.\n" if !$Debug;
             } else {
-                warn "%Error: Verilator_coverage threw signal $signal.\n" if !$Debug;
+                warn "%Error: Verilator_coverage threw signal $status.\n" if !$Debug;
             }
         }
         if ($status != 256 || $Debug) {  # i.e. not normal exit(1)
             warn "%Error: Command Failed $command\n";
         }
         exit $! if $!;  # errno
-        exit $? >> 8 if $? >> 8;  # pass along child exit code
-        exit 128 + $signal;  # last resort
+        exit $? >> 8 if $? >> 8;  # child exit status
+        exit 255;  # last resort
     }
 }
 
@@ -157,13 +154,9 @@ verilator_coverage - Verilator coverage analyzer
 
     verilator_coverage --annotate <obj>
 
-    verilator_coverage --report summary,hier <datafiles>...
+    verilator_coverage  -write merged.dat -read <datafiles>...
 
-    verilator_coverage --report hier <datafiles>...
-
-    verilator_coverage  -write merged.dat <datafiles>...
-
-    verilator_coverage  -write-info merged.info <datafiles>...
+    verilator_coverage  -write-info merged.info -read <datafiles>...
 
 Verilator_coverage processes Verilated model-generated coverage reports.
 
@@ -177,34 +170,29 @@ L<https://verilator.org/guide/latest/exe_verilator_coverage.html>.
     --annotate-all                All files should be shown.
     --annotate-min <count>        Minimum occurrence count for uncovered.
     --annotate-points             Annotates info from each coverage point.
-    --filter-type <regex>         Keep only records of given coverage type.
     --help                        Displays this message and version and exits.
-    --include-reset-arcs          Include reset arcs in FSM arc summaries.
-    --levels <depth>              Limit displayed hierarchy report depth.
     --rank                        Compute relative importance of tests.
-    --report <kind>[,<kind>...]   Generate reports: summary, hier, or hierarchy.
     --unlink                      With --write, unlink all inputs
     --version                     Displays program version and exits.
     --write <filename>            Write aggregate coverage results.
     --write-info <filename.info>  Write lcov .info.
 
-    +libext+<ext>+<ext>...        Extensions for Verilog files.
-    +define+<var>+<value>         Defines the given variable.
-    -D<var>=<value>               Defines the given variable.
-    +incdir+<dir>                 Add directory for finding include files.
-    -I<dir>                       Add directory for finding include files.
-    -y <dir>                      Specifies module search directory.
+    +libext+I<ext>+I<ext>...      Extensions for Verilog files.
+    +define+I<var>+I<value>       Defines the given variable.
+    -DI<var>=I<value>             Defines the given variable.
+    +incdir+I<dir>                Add directory for finding include files.
+    -II<dir>                      Add directory for finding include files.
+    -y I<dir>                     Specifies module search directory.
 
 =head1 DISTRIBUTION
 
 The latest version is available from L<https://verilator.org>.
 
-Copyright 2003-2026 by Wilson Snyder. This program is free software; you
+Copyright 2003-2023 by Wilson Snyder. This program is free software; you
 can redistribute it and/or modify the Verilator internals under the terms
 of either the GNU Lesser General Public License Version 3 or the Perl
 Artistic License Version 2.0.
 
-SPDX-FileCopyrightText: 2003-2026 Wilson Snyder
 SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
 =head1 SEE ALSO

bin/verilator_difftree

@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
-# mypy: disallow-untyped-defs
-# pylint: disable=C0103,C0114,C0116,C0209,W0603
+# pylint: disable=C0103,C0114,C0116,C0209
 ######################################################################
 
 import argparse
@@ -10,29 +9,25 @@ import os.path
 import re
 import sys
 
-exit_code = 0
 
+def diff(a, b):
 
-def diff(a: str, b: str) -> None:
     if not os.path.exists(a):
-        sys.stderr.write("%Error: No old diff filename found: " + a + "\n")
-        sys.exit(2)
+        sys.exit("%Error: No old diff filename found: " + a)
     if not os.path.exists(b):
-        sys.stderr.write("%Error: No new diff filename found: " + b + "\n")
-        sys.exit(2)
+        sys.exit("%Error: No new diff filename found: " + b)
 
     if os.path.isdir(a) and os.path.isdir(b):
         diff_dir(a, b)
     elif os.path.isfile(a) and os.path.isfile(b):
         diff_file(a, b)
     else:
-        sys.stderr.write("%Error: Mix of files and dirs")
-        sys.exit(2)
+        sys.exit("%Error: Mix of files and dirs")
 
 
-def diff_dir(a: str, b: str) -> None:
+def diff_dir(a, b):
     # Diff all files under two directories
-    files: dict[str, dict[str, str]] = collections.defaultdict(lambda: {})
+    files = collections.defaultdict(lambda: {})
 
     for fn in glob.glob(a + "/*.tree"):
         base = re.sub(r'.*/', '', fn)
@@ -52,12 +47,11 @@ def diff_dir(a: str, b: str) -> None:
         diff_file(a, b)
         anyfile = True
     if not anyfile:
-        sys.stderr.write("%Warning: No .tree files found that have similar base names\n")
+        sys.stderr.write(
+            "%Warning: No .tree files found that have similar base names\n")
 
 
-def diff_file(a: str, b: str) -> None:
-    global exit_code
-
+def diff_file(a, b):
     # Compare the two tree files
     short_a = re.sub(r'[^a-zA-Z0-9.]+', '_', a)
     short_b = re.sub(r'[^a-zA-Z0-9.]+', '_', b)
@@ -72,18 +66,25 @@ def diff_file(a: str, b: str) -> None:
 
     filterf(a, tmp_a)
     filterf(b, tmp_b)
-    status = os.system("diff -u " + tmp_a + " " + tmp_b)
+    os.system("diff -u " + tmp_a + " " + tmp_b)
     os.unlink(tmp_a)
     os.unlink(tmp_b)
 
-    status_exit_code = status >> 8
-    if status_exit_code == 1:
-        exit_code = 1
-    elif status_exit_code:
-        exit_code = 2
+
+def version_from(filename):
+    # Return dump format
+    with open(filename, "r", encoding="utf8") as fh:
+        lineno = 0
+        for line in fh:
+            if lineno > 10:
+                break
+            match = re.search(r'format (0x[0-9.]+)', line)
+            if match:
+                return hex(match.group(1))
+    return 1.0
 
 
-def filterf(fn1: str, fn2: str) -> None:
+def filterf(fn1, fn2):
     # Remove hex numbers before diffing
     with open(fn1, "r", encoding="utf8") as fh1:
         with open(fn2, "w", encoding="utf8") as fh2:
@@ -107,18 +108,19 @@ parser = argparse.ArgumentParser(
 
 Verilator_difftree is used for debugging Verilator tree output files.
 It performs a diff between two files, or all files common between two
-directories, ignoring irrelevant pointer differences.
+directories, ignoring irrelevant pointer differences.""",
+    epilog=
+    """Copyright 2005-2023 by Wilson Snyder. This program is free software; you
+can redistribute it and/or modify it under the terms of either the GNU
+Lesser General Public License Version 3 or the Perl Artistic License
+Version 2.0.
 
-Exit status is 0 if inputs are the same, 1 if different, 2 if trouble.""",
-    epilog="""This program is free software; you can redistribute it and/or modify it
-under the terms of either the GNU Lesser General Public License Version 3
-or the Perl Artistic License Version 2.0.
+SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0""")
 
-SPDX-FileCopyrightText: 2005-2026 Wilson Snyder
-SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-""")
-
-parser.add_argument('--debug', action='store_const', const=9, help='enable debug')
+parser.add_argument('--debug',
+                    action='store_const',
+                    const=9,
+                    help='enable debug')
 parser.add_argument('--no-lineno',
                     action='store_false',
                     help='do not show differences in line numbering')
@@ -127,7 +129,6 @@ parser.add_argument('fileb', help='input file b to diff')
 
 Args = parser.parse_args()
 diff(Args.filea, Args.fileb)
-sys.exit(exit_code)
 
 ######################################################################
 # Local Variables:

bin/verilator_gantt

@@ -1,66 +1,52 @@
 #!/usr/bin/env python3
-# pylint: disable=C0103,C0114,C0116,C0209,C0301,R0914,R0912,R0915,W0511,W0603,eval-used
+# pylint: disable=C0103,C0114,C0116,C0209,C0301,R0914,R0912,R0915,W0511,eval-used
 ######################################################################
 
 import argparse
-import bisect
 import collections
 import math
 import re
 import statistics
-from collections import OrderedDict
 # from pprint import pprint
 
-Sections = OrderedDict()
-LongestVcdStrValueLength = 0
-Threads = collections.defaultdict(lambda: [])  # List of records per thread id
-Mtasks = collections.defaultdict(lambda: {'elapsed': 0, 'end': 0})
-Cpus = collections.defaultdict(lambda: {'mtask_time': 0})
+Threads = collections.defaultdict(lambda: collections.defaultdict(lambda: {}))
+Mtasks = collections.defaultdict(lambda: {})
+Evals = collections.defaultdict(lambda: {})
+EvalLoops = collections.defaultdict(lambda: {})
 Global = {
     'args': {},
     'cpuinfo': collections.defaultdict(lambda: {}),
-    'info': {
-        'numa': 'no data'
-    },
+    'rdtsc_cycle_time': 0,
     'stats': {}
 }
-ElapsedTime = None  # total elapsed time
-ExecGraphTime = 0  # total elapsed time executing an exec graph
-WaitingTime = 0  # total elapsed time waiting for mtasks
-ExecGraphIntervals = []  # list of (start, end) pairs
-ThreadScheduleWaitIntervals = []  # list of (start, tick, ecpu) pairs
 
 ######################################################################
 
 
-def read_data(filename: str) -> None:
+def process(filename):
+    read_data(filename)
+    report()
+
+
+def read_data(filename):
     with open(filename, "r", encoding="utf8") as fh:
         re_thread = re.compile(r'^VLPROFTHREAD (\d+)$')
         re_record = re.compile(r'^VLPROFEXEC (\S+) (\d+)(.*)$')
-        # The hierBlock argument is optional
         re_payload_mtaskBegin = re.compile(
-            r'id (\d+) predictStart (\d+) cpu (\d+)(?: hierBlock)?\s*(\w+)?')
-        re_payload_mtaskEnd = re.compile(r'predictCost (\d+)')
-        re_payload_wait = re.compile(r'cpu (\d+)')
+            r'id (\d+) predictStart (\d+) cpu (\d+)')
+        re_payload_mtaskEnd = re.compile(r'id (\d+) predictCost (\d+)')
 
         re_arg1 = re.compile(r'VLPROF arg\s+(\S+)\+([0-9.]*)\s*')
         re_arg2 = re.compile(r'VLPROF arg\s+(\S+)\s+([0-9.]*)\s*$')
-        re_info = re.compile(r'VLPROF info\s+(\S+)\s+(.*)$')
-        re_stat = re.compile(r'VLPROF stat\s+(\S+)\s+(\S+)')
+        re_stat = re.compile(r'VLPROF stat\s+(\S+)\s+([0-9.]+)')
+        re_time = re.compile(r'rdtsc time = (\d+) ticks')
         re_proc_cpu = re.compile(r'VLPROFPROC processor\s*:\s*(\d+)\s*$')
         re_proc_dat = re.compile(r'VLPROFPROC ([a-z_ ]+)\s*:\s*(.*)$')
         cpu = None
-        thread = 0
-        thread_last_ecpu = None
+        thread = None
 
-        global LongestVcdStrValueLength
-        global ExecGraphTime
-        global WaitingTime
-
-        ExecGraphStack = []
-        SectionStack = []
-        MtasksStack = []
-        ThreadScheduleWait = collections.defaultdict(list)
+        lastEvalBeginTick = None
+        lastEvalLoopBeginTick = None
 
         for line in fh:
             recordMatch = re_record.match(line)
@@ -68,70 +54,47 @@ def read_data(filename: str) -> None:
                 kind, tick, payload = recordMatch.groups()
                 tick = int(tick)
                 payload = payload.strip()
-                if kind == "SECTION_PUSH":
-                    LongestVcdStrValueLength = max(LongestVcdStrValueLength, len(payload))
-                    SectionStack.append(payload)
-                    Sections[thread].append((tick, tuple(SectionStack)))
-                elif kind == "SECTION_POP":
-                    assert SectionStack, "SECTION_POP without SECTION_PUSH"
-                    SectionStack.pop()
-                    Sections[thread].append((tick, tuple(SectionStack)))
+                if kind == "EVAL_BEGIN":
+                    Evals[tick]['start'] = tick
+                    lastEvalBeginTick = tick
+                elif kind == "EVAL_END":
+                    Evals[lastEvalBeginTick]['end'] = tick
+                    lastEvalBeginTick = None
+                elif kind == "EVAL_LOOP_BEGIN":
+                    EvalLoops[tick]['start'] = tick
+                    lastEvalLoopBeginTick = tick
+                elif kind == "EVAL_LOOP_END":
+                    EvalLoops[lastEvalLoopBeginTick]['end'] = tick
+                    lastEvalLoopBeginTick = None
                 elif kind == "MTASK_BEGIN":
-                    mtask, predict_start, ecpu, hier_block = re_payload_mtaskBegin.match(
+                    mtask, predict_start, ecpu = re_payload_mtaskBegin.match(
                         payload).groups()
-                    hier_block = "" if hier_block is None else hier_block
                     mtask = int(mtask)
                     predict_start = int(predict_start)
                     ecpu = int(ecpu)
-                    records = Threads[thread]
-                    records.append({
-                        'start': tick,
-                        'mtask': mtask,
-                        'predict_start': predict_start,
-                        'hier_block': hier_block,
-                        'cpu': ecpu
-                    })
-                    Mtasks[(hier_block, mtask)]['begin'] = tick
-                    Mtasks[(hier_block, mtask)]['predict_start'] = predict_start
-                    Mtasks[(hier_block, mtask)]['thread'] = thread
-                    MtasksStack.append((hier_block, mtask, records[-1]))
+                    Threads[thread][tick]['mtask'] = mtask
+                    Threads[thread][tick]['predict_start'] = predict_start
+                    Threads[thread][tick]['cpu'] = ecpu
+                    if 'elapsed' not in Mtasks[mtask]:
+                        Mtasks[mtask] = {'end': 0, 'elapsed': 0}
+                    Mtasks[mtask]['begin'] = tick
+                    Mtasks[mtask]['thread'] = thread
+                    Mtasks[mtask]['predict_start'] = predict_start
                 elif kind == "MTASK_END":
-                    predict_cost, = re_payload_mtaskEnd.match(payload).groups()
+                    mtask, predict_cost = re_payload_mtaskEnd.match(
+                        payload).groups()
                     mtask = int(mtask)
-                    hier_block, mtask, record = MtasksStack.pop()
                     predict_cost = int(predict_cost)
-                    begin = Mtasks[(hier_block, mtask)]['begin']
-                    record['end'] = tick
-                    assert record and records[-1]['start'] <= records[-1]['end'] <= tick
-                    record['predict_cost'] = predict_cost
-                    Mtasks[(hier_block, mtask)]['elapsed'] += tick - begin
-                    Mtasks[(hier_block, mtask)]['predict_cost'] = predict_cost
-                    Mtasks[(hier_block, mtask)]['end'] = max(Mtasks[(hier_block, mtask)]['end'],
-                                                             tick)
-                elif kind == "THREAD_SCHEDULE_WAIT_BEGIN":
-                    ecpu = int(re_payload_wait.match(payload).groups()[0])
-                    thread_last_ecpu = ecpu
-                    ThreadScheduleWait[ecpu].append(tick)
-                elif kind == "THREAD_SCHEDULE_WAIT_END":
-                    # Might have ended on different CPU then we got THREAD_SCHEDULE_WAIT_BEGIN
-                    assert thread_last_ecpu is not None, "THREAD_SCHEDULE_WAIT_END without BEGIN"
-                    ecpu = thread_last_ecpu
-                    thread_last_ecpu = None
-                    start = ThreadScheduleWait[ecpu].pop()
-                    WaitingTime += tick - start
-                    ThreadScheduleWaitIntervals.append((start, tick, ecpu))
-                elif kind == "EXEC_GRAPH_BEGIN":
-                    ExecGraphStack.append(tick)
-                elif kind == "EXEC_GRAPH_END":
-                    assert ExecGraphStack, "EXEC_GRAPH_END without EXEC_GRAPH_BEGIN"
-                    execGraphStart = ExecGraphStack.pop()
-                    ExecGraphTime += tick - execGraphStart
-                    ExecGraphIntervals.append((execGraphStart, tick))
+                    begin = Mtasks[mtask]['begin']
+                    Threads[thread][begin]['end'] = tick
+                    Threads[thread][begin]['predict_cost'] = predict_cost
+                    Mtasks[mtask]['elapsed'] += tick - begin
+                    Mtasks[mtask]['predict_cost'] = predict_cost
+                    Mtasks[mtask]['end'] = max(Mtasks[mtask]['end'], tick)
                 elif Args.debug:
                     print("-Unknown execution trace record: %s" % line)
             elif re_thread.match(line):
                 thread = int(re_thread.match(line).group(1))
-                Sections[thread] = []
             elif re.match(r'^VLPROF(THREAD|VERSION)', line):
                 pass
             elif re_arg1.match(line):
@@ -140,16 +103,13 @@ def read_data(filename: str) -> None:
             elif re_arg2.match(line):
                 match = re_arg2.match(line)
                 Global['args'][match.group(1)] = match.group(2)
-            elif re_info.match(line):
-                match = re_info.match(line)
-                Global['info'][match.group(1)] = match.group(2)
             elif re_stat.match(line):
                 match = re_stat.match(line)
                 Global['stats'][match.group(1)] = match.group(2)
             elif re_proc_cpu.match(line):
                 match = re_proc_cpu.match(line)
                 cpu = int(match.group(1))
-            elif cpu is not None and re_proc_dat.match(line):
+            elif cpu and re_proc_dat.match(line):
                 match = re_proc_dat.match(line)
                 term = match.group(1)
                 value = match.group(2)
@@ -161,6 +121,11 @@ def read_data(filename: str) -> None:
                 pass
             elif Args.debug:
                 print("-Unk: %s" % line)
+            # TODO -- this is parsing text printed by a client.
+            # Really, verilator proper should generate this
+            # if it's useful...
+            if re_time.match(line):
+                Global['rdtsc_cycle_time'] = re_time.group(1)
 
 
 def re_match_result(regexp, line, result_to):
@@ -171,7 +136,7 @@ def re_match_result(regexp, line, result_to):
 ######################################################################
 
 
-def report() -> None:
+def report():
     print("Verilator Gantt report")
 
     print("\nArgument settings:")
@@ -179,57 +144,34 @@ def report() -> None:
         plus = "+" if re.match(r'^\+', arg) else " "
         print("  %s%s%s" % (arg, plus, Global['args'][arg]))
 
-    for records in Threads.values():
-        for record in records:
-            cpu = record['cpu']
-            elapsed = record['end'] - record['start']
-            Cpus[cpu]['mtask_time'] += elapsed
-
-    global ElapsedTime
-    ElapsedTime = int(Global['stats']['ticks'])
     nthreads = int(Global['stats']['threads'])
-    ncpus = max(len(Cpus), 1)
+    Global['cpus'] = {}
+    for thread in Threads:
+        # Make potentially multiple characters per column
+        for start in Threads[thread]:
+            if not Threads[thread][start]:
+                continue
+            cpu = Threads[thread][start]['cpu']
+            elapsed = Threads[thread][start]['end'] - start
+            if cpu not in Global['cpus']:
+                Global['cpus'][cpu] = {'cpu_time': 0}
+            Global['cpus'][cpu]['cpu_time'] += elapsed
 
-    print("\nSummary:")
-    print("  Total elapsed time = {} rdtsc ticks".format(ElapsedTime))
-    print("  Parallelized code  = {:.2%} of elapsed time".format(ExecGraphTime / ElapsedTime))
-    print("  Waiting time       = {:.2%} of elapsed time".format(WaitingTime / ElapsedTime))
-    print("  Total threads      = %d" % nthreads)
-    print("  Total CPUs used    = %d" % ncpus)
-    print("  Total mtasks       = %d" % len(Mtasks))
-    print("  Total yields       = %d" % int(Global['stats'].get('yields', 0)))
-
-    report_numa()
-    report_mtasks()
-    report_cpus()
-    report_sections()
-
-    if nthreads > ncpus:
-        print()
-        print("%%Warning: There were fewer CPUs (%d) than threads (%d)." % (ncpus, nthreads))
-        print("        : See docs on use of numactl.")
-    else:
-        if 'cpu_socket_cores_warning' in Global:
-            print()
-            print("%Warning: Multiple threads scheduled on same hyperthreaded core.")
-            print("        : See docs on use of numactl.")
-        if 'cpu_sockets_warning' in Global:
-            print()
-            print("%Warning: Threads scheduled on multiple sockets.")
-            print("        : See docs on use of numactl.")
-    print()
-
-
-def report_numa() -> None:
-    print("\nNUMA assignment:")
-    print("  NUMA status        = %s" % Global['info']['numa'])
-
-
-def report_mtasks() -> None:
-    if not Mtasks:
-        return
-
-    nthreads = int(Global['stats']['threads'])
+    measured_mt_mtask_time = 0
+    predict_mt_mtask_time = 0
+    long_mtask_time = 0
+    measured_last_end = 0
+    predict_last_end = 0
+    for mtask in Mtasks:
+        measured_mt_mtask_time += Mtasks[mtask]['elapsed']
+        predict_mt_mtask_time += Mtasks[mtask]['predict_cost']
+        measured_last_end = max(measured_last_end, Mtasks[mtask]['end'])
+        predict_last_end = max(
+            predict_last_end,
+            Mtasks[mtask]['predict_start'] + Mtasks[mtask]['predict_cost'])
+        long_mtask_time = max(long_mtask_time, Mtasks[mtask]['elapsed'])
+    Global['measured_last_end'] = measured_last_end
+    Global['predict_last_end'] = predict_last_end
 
     # If we know cycle time in the same (rdtsc) units,
     # this will give us an actual utilization number,
@@ -239,136 +181,130 @@ def report_mtasks() -> None:
     # serial mode, to estimate the overhead of data sharing,
     # which will show up in the total elapsed time. (Overhead
     # of synchronization and scheduling should not.)
-    total_mtask_time = 0
-    thread_mtask_time = collections.defaultdict(lambda: 0)
-    long_mtask_time = 0
-    long_mtask = None
-    long_mtask_hier_block = None
-    predict_mtask_time = 0
-    predict_elapsed = 0
-    for (hier_block, mtask_id) in Mtasks:
-        record = Mtasks[(hier_block, mtask_id)]
-        predict_mtask_time += record['predict_cost']
-        total_mtask_time += record['elapsed']
-        thread_mtask_time[record['thread']] += record['elapsed']
-        predict_end = record['predict_start'] + record['predict_cost']
-        predict_elapsed = max(predict_elapsed, predict_end)
-        if record['elapsed'] > long_mtask_time:
-            long_mtask_time = record['elapsed']
-            long_mtask = mtask_id
-            long_mtask_hier_block = hier_block
-    Global['predict_last_end'] = predict_elapsed
+    print("\nAnalysis:")
+    print("  Total threads             = %d" % nthreads)
+    print("  Total mtasks              = %d" % len(Mtasks))
+    ncpus = max(len(Global['cpus']), 1)
+    print("  Total cpus used           = %d" % ncpus)
+    print("  Total yields              = %d" %
+          int(Global['stats'].get('yields', 0)))
+    print("  Total evals               = %d" % len(Evals))
+    print("  Total eval loops          = %d" % len(EvalLoops))
+    if Mtasks:
+        print("  Total eval time           = %d rdtsc ticks" %
+              Global['measured_last_end'])
+        print("  Longest mtask time        = %d rdtsc ticks" % long_mtask_time)
+        print("  All-thread mtask time     = %d rdtsc ticks" %
+              measured_mt_mtask_time)
+        long_efficiency = long_mtask_time / (Global.get(
+            'measured_last_end', 1) or 1)
+        print("  Longest-thread efficiency = %0.1f%%" %
+              (long_efficiency * 100.0))
+        mt_efficiency = measured_mt_mtask_time / (
+            Global.get('measured_last_end', 1) * nthreads or 1)
+        print("  All-thread efficiency     = %0.1f%%" %
+              (mt_efficiency * 100.0))
+        print("  All-thread speedup        = %0.1f" %
+              (mt_efficiency * nthreads))
+        if Global['rdtsc_cycle_time'] > 0:
+            ut = measured_mt_mtask_time / Global['rdtsc_cycle_time']
+            print("tot_mtask_cpu=" + measured_mt_mtask_time + " cyc=" +
+                  Global['rdtsc_cycle_time'] + " ut=" + ut)
 
-    serialTime = ElapsedTime - ExecGraphTime
+        predict_mt_efficiency = predict_mt_mtask_time / (
+            Global.get('predict_last_end', 1) * nthreads or 1)
+        print("\nPrediction (what Verilator used for scheduling):")
+        print("  All-thread efficiency     = %0.1f%%" %
+              (predict_mt_efficiency * 100.0))
+        print("  All-thread speedup        = %0.1f" %
+              (predict_mt_efficiency * nthreads))
 
-    def subReport(elapsed, work):
-        print("  Thread utilization = {:7.2%}".format(work / (elapsed * nthreads)))
-        print("  Speedup            = {:6.3}x".format(work / elapsed))
+        p2e_ratios = []
+        min_p2e = 1000000
+        min_mtask = None
+        max_p2e = -1000000
+        max_mtask = None
 
-    print("\nParallelized code, measured:")
-    subReport(ExecGraphTime, total_mtask_time)
+        for mtask in sorted(Mtasks.keys()):
+            if Mtasks[mtask]['elapsed'] > 0:
+                if Mtasks[mtask]['predict_cost'] == 0:
+                    Mtasks[mtask]['predict_cost'] = 1  # don't log(0) below
+                p2e_ratio = math.log(Mtasks[mtask]['predict_cost'] /
+                                     Mtasks[mtask]['elapsed'])
+                p2e_ratios.append(p2e_ratio)
 
-    print("\nParallelized code, predicted during static scheduling:")
-    subReport(predict_elapsed, predict_mtask_time)
+                if p2e_ratio > max_p2e:
+                    max_p2e = p2e_ratio
+                    max_mtask = mtask
+                if p2e_ratio < min_p2e:
+                    min_p2e = p2e_ratio
+                    min_mtask = mtask
 
-    print("\nAll code, measured:")
-    subReport(ElapsedTime, serialTime + total_mtask_time)
-
-    print("\nAll code, measured, scaled by predicted speedup:")
-    expectedParallelSpeedup = predict_mtask_time / predict_elapsed
-    scaledElapsed = serialTime + total_mtask_time / expectedParallelSpeedup
-    subReport(scaledElapsed, serialTime + total_mtask_time)
-
-    p2e_ratios = []
-    min_p2e = 1000000
-    min_mtask = None
-    max_p2e = -1000000
-    max_mtask = None
-
-    min_hier_block = None
-    max_hier_block = None
-
-    for (hier_block, mtask_id) in sorted(Mtasks.keys()):
-        mtask = Mtasks[(hier_block, mtask_id)]
-        if mtask['elapsed'] > 0:
-            if mtask['predict_cost'] == 0:
-                mtask['predict_cost'] = 1  # don't log(0) below
-            p2e_ratio = math.log(mtask['predict_cost'] / mtask['elapsed'])
-            p2e_ratios.append(p2e_ratio)
-
-            if p2e_ratio > max_p2e:
-                max_p2e = p2e_ratio
-                max_mtask = mtask_id
-                max_hier_block = hier_block
-            if p2e_ratio < min_p2e:
-                min_p2e = p2e_ratio
-                min_mtask = mtask_id
-                min_hier_block = hier_block
-
-    print("\nMTask statistics:")
-    if long_mtask_hier_block:
-        print("  Longest mtask id = {} from hier_block '{}'".format(long_mtask,
-                                                                    long_mtask_hier_block))
-    else:
-        print("  Longest mtask id = {}".format(long_mtask))
-    print("  Longest mtask time = {:.2%} of time elapsed in parallelized code".format(
-        long_mtask_time / ExecGraphTime))
-    print("  min log(p2e) = %0.3f" % min_p2e, end="")
-
-    if min_hier_block:
-        print("  from hier_block '%s' mtask %d (predict %d," %
-              (min_hier_block, min_mtask, Mtasks[(min_hier_block, min_mtask)]['predict_cost']),
-              end="")
-    else:
+        print("\nMTask statistics:")
+        print("  min log(p2e) = %0.3f" % min_p2e, end="")
         print("  from mtask %d (predict %d," %
-              (min_mtask, Mtasks[(min_hier_block, min_mtask)]['predict_cost']),
+              (min_mtask, Mtasks[min_mtask]['predict_cost']),
               end="")
-    print(" elapsed %d)" % Mtasks[(min_hier_block, min_mtask)]['elapsed'])
-    print("  max log(p2e) = %0.3f" % max_p2e, end="")
-    if max_hier_block:
-        print("  from hier_block '%s' mtask %d (predict %d," %
-              (max_hier_block, max_mtask, Mtasks[(max_hier_block, max_mtask)]['predict_cost']),
-              end="")
-    else:
+        print(" elapsed %d)" % Mtasks[min_mtask]['elapsed'])
+        print("  max log(p2e) = %0.3f" % max_p2e, end="")
         print("  from mtask %d (predict %d," %
-              (max_mtask, Mtasks[(max_hier_block, max_mtask)]['predict_cost']),
+              (max_mtask, Mtasks[max_mtask]['predict_cost']),
               end="")
-    print(" elapsed %d)" % Mtasks[(max_hier_block, max_mtask)]['elapsed'])
+        print(" elapsed %d)" % Mtasks[max_mtask]['elapsed'])
 
-    stddev = statistics.pstdev(p2e_ratios)
-    mean = statistics.mean(p2e_ratios)
-    print("  mean = %0.3f" % mean)
-    print("  stddev = %0.3f" % stddev)
-    print("  e ^ stddev = %0.3f" % math.exp(stddev))
+        stddev = statistics.pstdev(p2e_ratios)
+        mean = statistics.mean(p2e_ratios)
+        print("  mean = %0.3f" % mean)
+        print("  stddev = %0.3f" % stddev)
+        print("  e ^ stddev = %0.3f" % math.exp(stddev))
+
+    report_cpus()
+
+    if nthreads > ncpus:
+        print()
+        print("%%Warning: There were fewer CPUs (%d) then threads (%d)." %
+              (ncpus, nthreads))
+        print("        : See docs on use of numactl.")
+    else:
+        if 'cpu_socket_cores_warning' in Global:
+            print()
+            print(
+                "%Warning: Multiple threads scheduled on same hyperthreaded core."
+            )
+            print("        : See docs on use of numactl.")
+        if 'cpu_sockets_warning' in Global:
+            print()
+            print("%Warning: Threads scheduled on multiple sockets.")
+            print("        : See docs on use of numactl.")
+    print()
 
 
-def report_cpus() -> None:
-    print("\nCPU info:")
+def report_cpus():
+    print("\nCPUs:")
 
     Global['cpu_sockets'] = collections.defaultdict(lambda: 0)
     Global['cpu_socket_cores'] = collections.defaultdict(lambda: 0)
 
-    print("   Id | Time spent executing MTask | Socket | Core | Model")
-    print("      | % of elapsed ticks / ticks |        |      |")
-    print("  ====|============================|========|======|======")
-    for cpu in sorted(Cpus):
-        socket = ""
-        core = ""
-        model = ""
+    for cpu in sorted(Global['cpus'].keys()):
+        print("  cpu %d: " % cpu, end='')
+        print("cpu_time=%d" % Global['cpus'][cpu]['cpu_time'], end='')
+
+        socket = None
         if cpu in Global['cpuinfo']:
             cpuinfo = Global['cpuinfo'][cpu]
             if 'physical_id' in cpuinfo and 'core_id' in cpuinfo:
-                socket = cpuinfo['physical_id']
+                socket = int(cpuinfo['physical_id'])
                 Global['cpu_sockets'][socket] += 1
-                core = cpuinfo['core_id']
-                Global['cpu_socket_cores'][socket + "__" + core] += 1
+                print(" socket=%d" % socket, end='')
+
+                core = int(cpuinfo['core_id'])
+                Global['cpu_socket_cores'][str(socket) + "__" + str(core)] += 1
+                print(" core=%d" % core, end='')
 
             if 'model_name' in cpuinfo:
                 model = cpuinfo['model_name']
-
-        print("  {:3d} | {:7.2%} / {:16d} | {:>6s} | {:>4s} | {}".format(
-            cpu, Cpus[cpu]['mtask_time'] / ElapsedTime, Cpus[cpu]['mtask_time'], socket, core,
-            model))
+                print("  %s" % model, end='')
+        print()
 
     if len(Global['cpu_sockets']) > 1:
         Global['cpu_sockets_warning'] = True
@@ -377,72 +313,25 @@ def report_cpus() -> None:
                 Global['cpu_socket_cores_warning'] = True
 
 
-def report_sections() -> None:
-    for thread, section in Sections.items():
-        if section:
-            print(f"\nSection profile for thread {thread}:")
-            report_section(section)
-
-
-def report_section(section) -> None:
-    totalTime = collections.defaultdict(lambda: 0)
-    selfTime = collections.defaultdict(lambda: 0)
-
-    sectionTree = [0, {}, 1]  # [selfTime, childTrees, numberOfTimesEntered]
-    prevTime = 0
-    prevStack = ()
-    for time, stack in section:
-        if len(stack) > len(prevStack):
-            scope = sectionTree
-            for item in stack:
-                scope = scope[1].setdefault(item, [0, {}, 0])
-            scope[2] += 1
-        dt = time - prevTime
-        assert dt >= 0
-        scope = sectionTree
-        for item in prevStack:
-            scope = scope[1].setdefault(item, [0, {}, 0])
-        scope[0] += dt
-
-        if prevStack:
-            for name in prevStack:
-                totalTime[name] += dt
-            selfTime[prevStack[-1]] += dt
-        prevTime = time
-        prevStack = stack
-
-    def treeSum(tree):
-        n = tree[0]
-        for subTree in tree[1].values():
-            n += treeSum(subTree)
-        return n
-
-    # Make sure the tree sums to the elapsed time
-    sectionTree[0] += ElapsedTime - treeSum(sectionTree)
-
-    def printTree(prefix, name, entries, tree):
-        print("  {:7.2%} | {:7.2%} | {:8} | {:10.2f} | {}".format(
-            treeSum(tree) / ElapsedTime, tree[0] / ElapsedTime, tree[2], tree[2] / entries,
-            prefix + name))
-        for k in sorted(tree[1], key=lambda _: -treeSum(tree[1][_])):
-            printTree(prefix + "  ", k, tree[2], tree[1][k])
-
-    print(" Total    | Self    | Total    | Relative   | Section")
-    print(" time     | time    | entries  | entries    |  name  ")
-    print("==========|=========|==========|============|========")
-    printTree("", "*TOTAL*", 1, sectionTree)
-
-
 ######################################################################
 
 
-def write_vcd(filename: str) -> None:
+def write_vcd(filename):
     print("Writing %s" % filename)
     with open(filename, "w", encoding="utf8") as fh:
-        # dict of dicts of hierarchy elements/signal name  -> (code, width)
-        scopeSigs = {}
-        # map from time -> code -> value
-        values = collections.defaultdict(lambda: {})
+        vcd = {
+            'values':
+            collections.defaultdict(lambda: {}),  # {<time>}{<code>} = value
+            'sigs': {
+                'predicted_threads': {},
+                'measured_threads': {},
+                'cpus': {},
+                'evals': {},
+                'mtasks': {},
+                'Stats': {}
+            }  # {<module>}{<sig}} = code
+        }
+        code = 0
 
         parallelism = {
             'measured': collections.defaultdict(lambda: 0),
@@ -451,151 +340,132 @@ def write_vcd(filename: str) -> None:
         parallelism['measured'][0] = 0
         parallelism['predicted'][0] = 0
 
-        nextFreeCode = 0
-
-        def getCode(width, *names):
-            nonlocal nextFreeCode
-            scope = scopeSigs
-            *path, name = names
-            for item in path:
-                scope = scope.setdefault(item, {})
-            code, oldWidth = scope.setdefault(name, (nextFreeCode, width))
-            assert oldWidth == width
-            if code == nextFreeCode:
-                nextFreeCode += 1
-            return code
-
-        def addValue(code, time, val):
-            if isinstance(val, str):
-                buf = ""
-                for c in val:
-                    buf += bin(ord(c))[2:].rjust(8, "0")
-                val = buf.ljust(LongestVcdStrValueLength * 8, "0")
-            values[time][code] = val
-
-        def addXValue(code, time):
-            values[time][code] = 'x'
-
         # Measured graph
-        for thread in sorted(Threads):
-            mcode = getCode(32, 'measured', 't%d_mtask' % thread)
-            for record in Threads[thread]:
-                start = record['start']
-                mtask = record['mtask']
-                end = record['end']
-                cpu = record['cpu']
-                addValue(mcode, start, mtask)
-                addValue(mcode, end, None)
+        for thread in sorted(Threads.keys()):
+            sig = "thread%d_mtask" % thread
+            if sig not in vcd['sigs']['measured_threads']:
+                vcd['sigs']['measured_threads'][sig] = code
+                code += 1
+            mcode = vcd['sigs']['measured_threads'][sig]
+
+            for start in sorted(Threads[thread]):
+                mtask = Threads[thread][start]['mtask']
+                end = Threads[thread][start]['end']
+                cpu = Threads[thread][start]['cpu']
+                vcd['values'][start][mcode] = mtask
+                vcd['values'][end][mcode] = None
                 parallelism['measured'][start] += 1
                 parallelism['measured'][end] -= 1
 
-                code = getCode(32, 'measured', 'cpu%d_thread' % cpu)
-                addValue(code, start, thread)
-                addValue(code, end, None)
+                sig = "cpu%d_thread" % cpu
+                if sig not in vcd['sigs']['cpus']:
+                    vcd['sigs']['cpus'][sig] = code
+                    code += 1
+                ccode = vcd['sigs']['cpus'][sig]
+                vcd['values'][start][ccode] = thread
+                vcd['values'][end][ccode] = None
 
-                code = getCode(32, 'measured', 'cpu%d_mtask' % cpu)
-                addValue(code, start, mtask)
-                addValue(code, end, None)
+                sig = "mtask%d_cpu" % mtask
+                if sig not in vcd['sigs']['mtasks']:
+                    vcd['sigs']['mtasks'][sig] = code
+                    code += 1
+                ccode = vcd['sigs']['mtasks'][sig]
+                vcd['values'][start][ccode] = cpu
+                vcd['values'][end][ccode] = None
 
-        tStart = sorted(_['start'] for records in Threads.values() for _ in records)
-        tEnd = sorted(_['end'] for records in Threads.values() for _ in records)
+        # Eval graph
+        vcd['sigs']['evals']["eval"] = code
+        elcode = code
+        code += 1
+        n = 0
+        for eval_start in Evals:
+            eval_end = Evals[eval_start]['end']
+            n += 1
+            vcd['values'][eval_start][elcode] = n
+            vcd['values'][eval_end][elcode] = None
 
-        # Measured waiting time
-        for (start, end, cpu) in ThreadScheduleWaitIntervals:
-            mcode = getCode(32, 'measured', 'cpu%d_waiting' % cpu)
-            addXValue(mcode, start)
-            addValue(mcode, end, None)
+        # Eval_loop graph
+        vcd['sigs']['evals']["eval_loop"] = code
+        elcode = code
+        code += 1
+        n = 0
+        for eval_start in EvalLoops:
+            eval_end = EvalLoops[eval_start]['end']
+            n += 1
+            vcd['values'][eval_start][elcode] = n
+            vcd['values'][eval_end][elcode] = None
 
-        # Predicted graph
-        for start, end in ExecGraphIntervals:
-            # Find the earliest MTask start after the start point, and the
-            # latest MTask end before the end point, so we can scale to the
-            # same range
-            tStartIdx = bisect.bisect_left(tStart, start)
-            if tStartIdx >= len(tStart):
-                continue
-            start = tStart[tStartIdx]
-            end = tEnd[bisect.bisect_right(tEnd, end) - 1]
-            # Compute scale so predicted graph is of same width as interval
-            measured_scaling = (end - start) / Global['predict_last_end']
-            # Predict mtasks that fill the time the execution occupied
-            for (hier_block, mtask_id) in Mtasks:
-                mtask = Mtasks[(hier_block, mtask_id)]
-                thread = mtask['thread']
-                pred_scaled_start = start + int(mtask['predict_start'] * measured_scaling)
-                pred_scaled_end = start + int(
-                    (mtask['predict_start'] + mtask['predict_cost']) * measured_scaling)
-                if pred_scaled_start == pred_scaled_end:
-                    continue
+        if Mtasks:
+            # Predicted graph
+            for eval_start in EvalLoops:
+                eval_end = EvalLoops[eval_start]['end']
+                # Compute scale so predicted graph is of same width as eval
+                measured_scaling = (eval_end -
+                                    eval_start) / Global['predict_last_end']
+                # Predict mtasks that fill the time the eval occupied
+                for mtask in Mtasks:
+                    thread = Mtasks[mtask]['thread']
+                    pred_scaled_start = eval_start + int(
+                        Mtasks[mtask]['predict_start'] * measured_scaling)
+                    pred_scaled_end = eval_start + int(
+                        (Mtasks[mtask]['predict_start'] +
+                         Mtasks[mtask]['predict_cost']) * measured_scaling)
+                    if pred_scaled_start == pred_scaled_end:
+                        continue
 
-                mcode = getCode(32, 'predicted', 't%d_mtask' % thread)
-                addValue(mcode, pred_scaled_start, mtask_id)
-                addValue(mcode, pred_scaled_end, None)
+                    sig = "predicted_thread%d_mtask" % thread
+                    if sig not in vcd['sigs']['predicted_threads']:
+                        vcd['sigs']['predicted_threads'][sig] = code
+                        code += 1
+                    mcode = vcd['sigs']['predicted_threads'][sig]
 
-                parallelism['predicted'][pred_scaled_start] += 1
-                parallelism['predicted'][pred_scaled_end] -= 1
+                    vcd['values'][pred_scaled_start][mcode] = mtask
+                    vcd['values'][pred_scaled_end][mcode] = None
 
-        # Parallelism graph
-        for measpred in ('measured', 'predicted'):
-            pcode = getCode(32, 'stats', '%s_parallelism' % measpred)
-            value = 0
-            for time in sorted(parallelism[measpred].keys()):
-                value += parallelism[measpred][time]
-                addValue(pcode, time, value)
+                    parallelism['predicted'][pred_scaled_start] += 1
+                    parallelism['predicted'][pred_scaled_end] -= 1
 
-        # Section graph
-        for thread, section in Sections.items():
-            if section:
-                scode = getCode(LongestVcdStrValueLength * 8, "section", f"t{thread}_trace")
-                dcode = getCode(32, "section", f"t{thread}_depth")
-                for time, stack in section:
-                    addValue(scode, time, stack[-1] if stack else None)
-                    addValue(dcode, time, len(stack))
+            # Parallelism graph
+            for measpred in ('measured', 'predicted'):
+                vcd['sigs']['Stats']["%s_parallelism" % measpred] = code
+                pcode = code
+                code += 1
+                value = 0
+                for time in sorted(parallelism[measpred].keys()):
+                    value += parallelism[measpred][time]
+                    vcd['values'][time][pcode] = value
 
         # Create output file
         fh.write("$version Generated by verilator_gantt $end\n")
         fh.write("$timescale 1ns $end\n")
         fh.write("\n")
 
-        all_codes = set()
-
-        def writeScope(scope):
-            assert isinstance(scope, dict)
-            for key in sorted(scope):
-                val = scope[key]
-                if isinstance(val, dict):
-                    fh.write("  $scope module %s $end\n" % key)
-                    writeScope(val)
-                    fh.write("  $upscope $end\n")
-                else:
-                    (code, width) = val
-                    all_codes.add(code)
-                    fh.write("   $var wire %d v%x %s [%d:0] $end\n" %
-                             (width, code, key, width - 1))
-
+        all_codes = {}
         fh.write(" $scope module gantt $end\n")
-        writeScope(scopeSigs)
+        for module in sorted(vcd['sigs'].keys()):
+            fh.write("  $scope module %s $end\n" % module)
+            for sig in sorted(vcd['sigs'][module].keys()):
+                code = vcd['sigs'][module][sig]
+                fh.write("   $var wire 32 v%x %s [31:0] $end\n" % (code, sig))
+                all_codes[code] = 1
+            fh.write("  $upscope $end\n")
         fh.write(" $upscope $end\n")
         fh.write("$enddefinitions $end\n")
         fh.write("\n")
 
         first = True
-        for time in sorted(values):
+        for time in sorted(vcd['values']):
             if first:
                 first = False
                 # Start with Z for any signals without time zero data
-                for code in sorted(all_codes):
-                    if code not in values[time]:
-                        addValue(code, time, None)
+                for code in sorted(all_codes.keys()):
+                    if code not in vcd['values'][time]:
+                        vcd['values'][time][code] = None
             fh.write("#%d\n" % time)
-            for code in sorted(values[time]):
-                value = values[time][code]
+            for code in sorted(vcd['values'][time].keys()):
+                value = vcd['values'][time][code]
                 if value is None:
                     fh.write("bz v%x\n" % code)
-                elif value == 'x':
-                    fh.write("bx v%x\n" % code)
-                elif isinstance(value, str):
-                    fh.write("b%s v%x\n" % (value, code))
                 else:
                     fh.write("b%s v%x\n" % (format(value, 'b'), code))
 
@@ -605,7 +475,7 @@ def write_vcd(filename: str) -> None:
 parser = argparse.ArgumentParser(
     allow_abbrev=False,
     formatter_class=argparse.RawDescriptionHelpFormatter,
-    description="""Create Gantt chart of Verilator multi-threaded execution
+    description="""Create Gantt chart of multi-threaded execution.
 
 Verilator_gantt creates a visual representation to help analyze Verilator
 #xmultithreaded simulation performance, by showing when each macro-task
@@ -613,25 +483,28 @@ Verilator_gantt creates a visual representation to help analyze Verilator
 
 For documentation see
 https://verilator.org/guide/latest/exe_verilator_gantt.html""",
-    epilog="""This program is free software; you can redistribute it and/or modify it
-under the terms of either the GNU Lesser General Public License Version 3
-or the Perl Artistic License Version 2.0.
+    epilog=
+    """Copyright 2018-2023 by Wilson Snyder. This program is free software; you
+can redistribute it and/or modify it under the terms of either the GNU
+Lesser General Public License Version 3 or the Perl Artistic License
+Version 2.0.
 
-SPDX-FileCopyrightText: 2018-2026 Wilson Snyder
-SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-""")
+SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0""")
 
 parser.add_argument('--debug', action='store_true', help='enable debug')
-parser.add_argument('--no-vcd', help='disable creating vcd', action='store_true')
-parser.add_argument('--vcd', help='filename for vcd output', default='profile_exec.vcd')
+parser.add_argument('--no-vcd',
+                    help='disable creating vcd',
+                    action='store_true')
+parser.add_argument('--vcd',
+                    help='filename for vcd outpue',
+                    default='profile_exec.vcd')
 parser.add_argument('filename',
                     help='input profile_exec.dat filename to process',
                     default='profile_exec.dat')
 
 Args = parser.parse_args()
 
-read_data(Args.filename)
-report()
+process(Args.filename)
 if not Args.no_vcd:
     write_vcd(Args.vcd)
 

bin/verilator_includer

@@ -1,12 +1,11 @@
 #!/usr/bin/env python3
-# mypy: disallow-untyped-defs
 # pylint: disable=C0114,C0209
 #
-# This program is free software; you can redistribute it and/or modify the
-# Verilator internals under the terms of either the GNU Lesser General
-# Public License Version 3 or the Perl Artistic License Version 2.0.
+# Copyright 2003-2023 by Wilson Snyder. This program is free software; you
+# can redistribute it and/or modify the Verilator internals under the terms
+# of either the GNU Lesser General Public License Version 3 or the Perl
+# Artistic License Version 2.0.
 #
-# SPDX-FileCopyrightText: 2003-2026 Wilson Snyder
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 ######################################################################
 

bin/verilator_profcfunc

@@ -10,7 +10,7 @@ import re
 ######################################################################
 
 
-def profcfunc(filename: str) -> None:
+def profcfunc(filename):
     funcs = {}
 
     with open(filename, "r", encoding="utf8") as fh:
@@ -26,7 +26,7 @@ def profcfunc(filename: str) -> None:
                 calls = float(match.group(3))
                 func = match.group(4)
                 if func not in funcs:
-                    funcs[func] = {'pct': 0.0, 'sec': 0.0, 'calls': 0}
+                    funcs[func] = {'pct': 0, 'sec': 0, 'calls': 0}
                 funcs[func]['pct'] += pct
                 funcs[func]['sec'] += sec
                 funcs[func]['calls'] += calls
@@ -34,8 +34,9 @@ def profcfunc(filename: str) -> None:
 
             # Older gprofs have no call column for single-call functions
             #                  %time      cumesec   selfsec      {stuff}   name
-            match = re.match(r'^\s*([0-9.]+)\s+[0-9.]+\s+([0-9.]+)\s+[^a-zA-Z_]*([a-zA-Z_].*)$',
-                             line)
+            match = re.match(
+                r'^\s*([0-9.]+)\s+[0-9.]+\s+([0-9.]+)\s+[^a-zA-Z_]*([a-zA-Z_].*)$',
+                line)
             if match:
                 pct = float(match.group(1))
                 sec = float(match.group(2))
@@ -51,17 +52,12 @@ def profcfunc(filename: str) -> None:
     # Find modules
     verilated_mods = {}
     for func in funcs:
-        # Match only the model entry points: 'eval', 'eval_step', 'eval_end_step',
-        # and the 'evalXxx' region entry points, but not e.g. a user's '::evaluate'
-        match = re.match(r'([A-Za-z_][A-Za-z_0-9]*)::eval(_step|_end_step|[A-Z][A-Za-z_0-9]*)?\(',
-                         func)
+        match = re.search(r'(.*)::eval(_step)?\(', func)
         if match:
             prefix = match.group(1)
-            if prefix.startswith('Verilated'):  # Run-time library, not a model
-                continue
             if Args.debug:
                 print("-got _eval %s   prefix=%s" % (func, prefix))
-            verilated_mods[prefix] = re.compile(r'^' + re.escape(prefix))
+            verilated_mods[prefix] = re.compile(r'^' + prefix)
     # pprint(verilated_mods)
 
     # Sort by Verilog name
@@ -140,27 +136,33 @@ def profcfunc(filename: str) -> None:
 
     design_width = 1
     for func, func_item in vfuncs.items():
-        design_width = max(design_width, len(func_item['design']))
+        if design_width < len(func_item['design']):
+            design_width = len(func_item['design'])
 
     print("Verilog code profile:")
     print("   These are split into three categories:")
     print("      C++:     Time in non-Verilated C++ code")
     print("      Prof:    Time in profile overhead")
-    print("      VBlock:  Time attributable to a block in a" + " Verilog file and line")
-    print("      VCommon: Time in a Verilated module," + " due to all parts of the design")
-    print("      VLib:    Time in Verilated common libraries," + " called by the Verilated code")
+    print("      VBlock:  Time attributable to a block in a" +
+          " Verilog file and line")
+    print("      VCommon: Time in a Verilated module," +
+          " due to all parts of the design")
+    print("      VLib:    Time in Verilated common libraries," +
+          " called by the Verilated code")
     print()
 
     print("  %   cumulative   self              ")
     print((" time   seconds   seconds      calls   %-" + str(design_width) +
            "s  type      filename and line number") % "design")
 
-    cume = 0.0
-    for func in sorted(vfuncs.keys(), key=lambda f: vfuncs[f]['sec'], reverse=True):
+    cume = 0
+    for func in sorted(vfuncs.keys(),
+                       key=lambda f: vfuncs[f]['sec'],
+                       reverse=True):
         cume += vfuncs[func]['sec']
         print(("%6.2f %9.2f %8.2f %10d   %-" + str(design_width) + "s  %s") %
-              (vfuncs[func]['pct'], cume, vfuncs[func]['sec'], vfuncs[func]['calls'],
-               vfuncs[func]['design'], func))
+              (vfuncs[func]['pct'], cume, vfuncs[func]['sec'],
+               vfuncs[func]['calls'], vfuncs[func]['design'], func))
 
 
 ######################################################################
@@ -169,7 +171,7 @@ def profcfunc(filename: str) -> None:
 parser = argparse.ArgumentParser(
     allow_abbrev=False,
     formatter_class=argparse.RawDescriptionHelpFormatter,
-    description="""Read gprof report created with Verilator --prof-cfuncs
+    description="""Read gprof report created with --prof-cfuncs.
 
 Verilator_profcfunc reads a profile report created by gprof.  The names of
 the functions are then transformed, assuming the user used Verilator's
@@ -178,15 +180,18 @@ in each Verilog block.
 
 For documentation see
 https://verilator.org/guide/latest/exe_verilator_profcfunc.html""",
-    epilog="""This program is free software; you can redistribute it and/or modify it
-under the terms of either the GNU Lesser General Public License Version 3
-or the Perl Artistic License Version 2.0.
+    epilog=
+    """Copyright 2002-2023 by Wilson Snyder. This program is free software; you
+can redistribute it and/or modify it under the terms of either the GNU
+Lesser General Public License Version 3 or the Perl Artistic License
+Version 2.0.
 
-SPDX-FileCopyrightText: 2002-2026 Wilson Snyder
-SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-""")
+SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0""")
 
-parser.add_argument('--debug', action='store_const', const=9, help='enable debug')
+parser.add_argument('--debug',
+                    action='store_const',
+                    const=9,
+                    help='enable debug')
 parser.add_argument('filename', help='input gprof output to process')
 
 Args = parser.parse_args()

ci/ci-build.bash

@@ -1,93 +0,0 @@
-#!/usr/bin/env bash
-# DESCRIPTION: Verilator: CI build job script
-#
-# SPDX-FileCopyrightText: 2026 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-################################################################################
-# Executed in the 'build' stage.
-################################################################################
-
-# Destructive to the checkout (reconfigures and rebuilds); never run locally
-if [ "$GITHUB_ACTIONS" != "true" ]; then
-  echo "ERROR: $(basename "$0") must only be run in GitHub Actions CI" >&2
-  exit 1
-fi
-
-set -e
-set -x
-
-source "$(dirname "$0")/ci-common.bash"
-
-################################################################################
-# Parse arguments
-
-OPT_ASAN=0
-OPT_CCWARN=0
-OPT_GCOV=0
-OPT_LIGHT_DEBUG=0
-OPT_COMPILER=
-OPT_PREFIX=
-while [ $# -gt 0 ]; do
-  case "$1" in
-    --asan) OPT_ASAN=1 ;;
-    --ccwarn) OPT_CCWARN=1 ;;
-    --compiler)
-      [ $# -ge 2 ] || fatal "--compiler requires an argument"
-      OPT_COMPILER="$2"
-      shift
-      ;;
-    --gcov) OPT_GCOV=1 ;;
-    --light-debug) OPT_LIGHT_DEBUG=1 ;;
-    --prefix)
-      [ $# -ge 2 ] || fatal "--prefix requires an argument"
-      OPT_PREFIX="$2"
-      shift
-      ;;
-    *) fatal "Unknown option: '$1'" ;;
-  esac
-  shift
-done
-
-[ -n "$OPT_COMPILER" ] || fatal "--compiler is required"
-[ -n "$OPT_PREFIX" ] || fatal "--prefix is required"
-
-# Map the compiler name to the executable name configure CXX expects
-case "$OPT_COMPILER" in
-  clang) CXX=clang++ ;;
-  gcc) CXX=g++ ;;
-  *) fatal "Unknown compiler: '$OPT_COMPILER'" ;;
-esac
-
-################################################################################
-# Configure
-
-CONFIGURE_ARGS="--prefix=$OPT_PREFIX --enable-longtests"
-if [ "$OPT_CCWARN" = 1 ]; then
-  CONFIGURE_ARGS="$CONFIGURE_ARGS --enable-ccwarn"
-fi
-if [ "$OPT_ASAN" = 1 ]; then
-  CONFIGURE_ARGS="$CONFIGURE_ARGS --enable-dev-asan"
-  CXX="$CXX -DVL_LEAK_CHECKS"
-  # Replaces VNUser's union with a std::variant to validate type usage.
-  # Only takes effect when the build is C++17 or newer.
-  CXX="$CXX -DVL_USER_TYPE_CHECKS"
-fi
-if [ "$OPT_GCOV" = 1 ]; then
-  CONFIGURE_ARGS="$CONFIGURE_ARGS --enable-dev-gcov"
-fi
-if [ "$OPT_LIGHT_DEBUG" = 1 ]; then
-  CONFIGURE_ARGS="$CONFIGURE_ARGS --enable-light-debug"
-fi
-autoconf
-./configure $CONFIGURE_ARGS CXX="$CXX"
-
-################################################################################
-# Build
-
-ccache -z
-BUILD_START=$SECONDS
-"$MAKE" -j "$NPROC" -k
-ccache -svv
-ccache --evict-older-than "$((SECONDS - BUILD_START + 60))s"
-ccache -svv

ci/ci-ccache-maint.bash

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# DESCRIPTION: Verilator: CI ccache maintenance
+#
+# Copyright 2020 by Geza Lore. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+#
+# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+################################################################################
+# This script is run in 'before_script', once ccache has been set up.
+################################################################################
+
+set -e
+set -x
+
+# Show version
+ccache --version
+
+# Flush ccache if requested in commit message
+COMMIT="${CI_PULL_REQUEST_SHA:-$CI_COMMIT}"
+if git log --format=%B -n 1 "$COMMIT" | grep -q -i '\[CI\s\+ccache\s\+clear\]'; then
+  echo "Flushing ccache due to commit message"
+  ccache -C
+fi
+
+# Dump stats, then zero stats
+ccache -s -z

ci/ci-common.bash

@@ -1,35 +0,0 @@
-# DESCRIPTION: Verilator: CI common definitions, sourced by the stage scripts
-#
-# SPDX-FileCopyrightText: 2026 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-################################################################################
-# Common definitions sourced by the CI stage scripts; not executed directly.
-################################################################################
-
-fatal() {
-  echo "ERROR: $(basename "$0"): $1" >&2; exit 1;
-}
-
-case "$(uname -s)" in
-  Linux)
-    HOST_OS=linux
-    MAKE=make
-    NPROC=$(nproc)
-    # Distro id/version; subshell keeps os-release out of our namespace
-    if [ -r /etc/os-release ]; then
-      DISTRO_ID=$(. /etc/os-release; echo "$ID")
-      DISTRO_VERSION=$(. /etc/os-release; echo "$VERSION_ID")
-    fi
-    ;;
-  Darwin)
-    HOST_OS=macOS
-    MAKE=make
-    NPROC=$(sysctl -n hw.logicalcpu)
-    ;;
-  *)
-    fatal "Unknown host OS: '$(uname -s)'"
-    ;;
-esac
-
-export MAKE

ci/ci-coverage-report.bash

@@ -1,100 +0,0 @@
-#!/usr/bin/env bash
-# DESCRIPTION: Verilator: CI script for 'coverage.yml' results
-#
-# SPDX-FileCopyrightText: 2026 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-# This script combines the code coverage data gathered by the test jobs into
-# the HTML report published on GitHub Pages, and for a pull request, builds the
-# content of the response comment posted on it.
-
-# Developer note: You should be able to run this script in your local checkout
-# if you have GitHub CLI (command 'gh') setup, authenticated ('gh auth login'),
-# and have set a default repository ('gh repo set-default').
-
-set -eo pipefail
-
-# Trace when running in the CI
-[ "$GITHUB_ACTIONS" != "true" ] || set -x
-
-# Arguments:
-#  1. run ID
-#  2. number of the pull request, or empty for a non-pull-request run
-#  3. base SHA of the pull request (pull requests only)
-#  4. head SHA of the pull request (pull requests only)
-RUN_ID=$1
-PR_NUMBER=$2
-PR_BASE_SHA=$3
-PR_HEAD_SHA=$4
-
-# Coverage data and report directory, uploaded as the 'coverage-report' artifact
-COVERAGE_DIR=obj_coverage
-ls -lsha ${COVERAGE_DIR}
-
-# Combine the reports from the test jobs
-nodist/fastcov.py -C ${COVERAGE_DIR}/verilator-*.info --lcov -o ${COVERAGE_DIR}/verilator.info
-
-# Create the report. For a pull request, report patch coverage against the
-# merge-base between the head of the pull request and the target branch. The
-# summary quoted in the notification below is only in the log of 'make'.
-MAKE_LOG=make-coverage-report.log
-if [ -n "${PR_NUMBER}" ]; then
-  COVERAGE_BASE=$(git rev-parse --short $(git merge-base ${PR_BASE_SHA} ${PR_HEAD_SHA}))
-  make coverage-report COVERAGE_BASE=${COVERAGE_BASE} |& tee ${MAKE_LOG}
-else
-  make coverage-report
-fi
-
-# Remove the data files, only the HTML report is published
-rm -f ${COVERAGE_DIR}/verilator*.info
-
-# The rest is for pull requests only
-if [ -z "${PR_NUMBER}" ]; then
-  exit 0
-fi
-
-# Get some metadata about the run
-RUN_NUM=$(gh run view ${RUN_ID} --json number --jq ".number")
-RUN_URL=$(gh run view ${RUN_ID} --json url    --jq ".url")
-
-# Repository owner and name of the default repository, used to build the
-# GitHub Pages URL of the report. The owner is lowercased, as required for the
-# '<owner>.github.io' Pages domain.
-PAGES_OWNER=$(gh repo view --json owner --jq '.owner.login' | tr '[:upper:]' '[:lower:]')
-PAGES_NAME=$(gh repo view --json name --jq '.name')
-
-REPORT_URL=https://${PAGES_OWNER}.github.io/${PAGES_NAME}/coverage-reports/${RUN_ID}/index.html
-
-###############################################################################
-# Create the PR notification
-###############################################################################
-
-NOTIFICATION_DIR=notification
-mkdir -p ${NOTIFICATION_DIR}
-
-cat > ${NOTIFICATION_DIR}/body.txt <<NOTIFICATION_TEMPLATE
-Patch coverage from PR workflow [#${RUN_NUM}](${RUN_URL}) (code coverage of lines changed relative to ${COVERAGE_BASE}):
-NOTIFICATION_TEMPLATE
-
-if [ -f ${COVERAGE_DIR}/empty-patch ]; then
-  # Patch is empty
-  cat >> ${NOTIFICATION_DIR}/body.txt <<SUMMARY_TEMPLATE
-Patch contains no code changes
-SUMMARY_TEMPLATE
-
-  echo "Workflow [#${RUN_NUM}](${RUN_URL}): patch contains no code changes" > ${NOTIFICATION_DIR}/hist.txt
-
-else
-  # Patch contains code changes
-
-  cat >> ${NOTIFICATION_DIR}/body.txt <<SUMMARY_TEMPLATE
-<pre>
-$(grep -E "(lines|branches)\.*:" ${MAKE_LOG} | sed "s/\.*:/:/" || true)
-</pre>
-Report: [${RUN_ID}](${REPORT_URL})
-
-Please get to 100% line coverage, and understand all branches; see the [developer docs](https://github.com/verilator/verilator/blob/master/docs/internals.rst#code-coverage-results)
-SUMMARY_TEMPLATE
-
-  echo "Workflow [#${RUN_NUM}](${RUN_URL}) report: [${RUN_ID}](${REPORT_URL})" > ${NOTIFICATION_DIR}/hist.txt
-fi

ci/ci-install.bash

@@ -1,7 +1,11 @@
 #!/usr/bin/env bash
 # DESCRIPTION: Verilator: CI dependency install script
 #
-# SPDX-FileCopyrightText: 2026 Wilson Snyder
+# Copyright 2020 by Geza Lore. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+#
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
 ################################################################################
@@ -10,211 +14,128 @@
 # required by the particular build stage.
 ################################################################################
 
-# Installs system packages with sudo; never run locally
-if [ "$GITHUB_ACTIONS" != "true" ]; then
-  echo "ERROR: $(basename "$0") must only be run in GitHub Actions CI" >&2
-  exit 1
-fi
-
 set -e
 set -x
 
 cd $(dirname "$0")/..
 
-source "$(dirname "$0")/ci-common.bash"
+# Avoid occasional cpan failures "Issued certificate has expired."
+export PERL_LWP_SSL_VERIFY_HOSTNAME=0
+echo "check_certificate = off" >> ~/.wgetrc
 
-################################################################################
-# Parse arguments
+fatal() {
+  echo "ERROR: $(basename "$0"): $1" >&2; exit 1;
+}
 
-# Which stage to install dependencies for
-STAGE="$1"
-
-################################################################################
-# Install dependencies
-
-if [ "$HOST_OS" = "macOS" ]; then
-  # The macos runner image ships an untrusted third-party tap we don't use;
-  # untap it so brew stops emitting a tap-trust warning. Force + '|| true' since
-  # untap fails if a formula was installed from it, which is harmless here.
-  brew untap --force aws/tap || true
+if [ "$CI_M32" = "0" ]; then
+  unset CI_M32
+elif [ "$CI_M32" != "1" ]; then
+  fatal "\$CI_M32 must be '0' or '1'";
 fi
 
-# Run 'sudo apt-get', with timeout, retrying if failed
-apt-get-retry() {
-  local _attempt
-  for _attempt in 1 2 3; do
-    [ "$_attempt" -eq 1 ] || sleep $((15 * _attempt))
-    sudo timeout --kill-after=30s 5m env DEBIAN_FRONTEND=noninteractive \
-      apt-get -o DPkg::Lock::Timeout=60 "$@" && return 0
-  done
-  fatal "'apt-get $*' failed on all attempts"
+if [ "$CI_OS_NAME" = "linux" ]; then
+  MAKE=make
+elif [ "$CI_OS_NAME" = "osx" ]; then
+  MAKE=make
+elif [ "$CI_OS_NAME" = "freebsd" ]; then
+  MAKE=gmake
+else
+  fatal "Unknown os: '$CI_OS_NAME'"
+fi
+
+install-vcddiff() {
+  TMP_DIR="$(mktemp -d)"
+  git clone https://github.com/veripool/vcddiff "$TMP_DIR"
+  git -C "${TMP_DIR}" checkout e5664be5fe39d353bf3fcb50aa05214ab7ed4ac4
+  "$MAKE" -C "${TMP_DIR}"
+  sudo cp "${TMP_DIR}/vcddiff" /usr/local/bin
 }
 
-# Run 'brew', retrying if failed
-brew-retry() {
-  local _attempt
-  for _attempt in 1 2 3; do
-    [ "$_attempt" -eq 1 ] || sleep $((15 * _attempt))
-    brew "$@" && return 0
-  done
-  fatal "'brew $*' failed on all attempts"
-}
-
-install-wavediff() {
-  source ci/docker/buildenv/wavetools.conf
-  local _base_url="https://github.com/hudson-trading/wavetools/releases/download/${WAVETOOLS_VERSION}"
-  local _platform
-  if [ "$HOST_OS" = "linux" ]; then
-    _platform="linux-x86_64"
-  elif [ "$HOST_OS" = "macOS" ]; then
-    _platform="macos-arm64"
-  else
-    echo "WARNING: No wavetools binary available for HOST_OS=$HOST_OS, skipping"
-    return 0
-  fi
-  local _tmpdir
-  _tmpdir=$(mktemp -d)
-  local _archive="wavetools-${WAVETOOLS_VERSION}-${_platform}"
-  wget -q -O "${_tmpdir}/${_archive}.tar.gz" "${_base_url}/${_archive}.tar.gz"
-  tar -xzf "${_tmpdir}/${_archive}.tar.gz" -C "${_tmpdir}"
-  sudo cp "${_tmpdir}/${_archive}/wavediff" /usr/local/bin/wavediff
-  rm -rf "${_tmpdir}"
-}
-
-if [ "$STAGE" = "build" ]; then
+if [ "$CI_BUILD_STAGE_NAME" = "build" ]; then
   ##############################################################################
   # Dependencies of jobs in the 'build' stage, i.e.: packages required to
   # build Verilator
 
-  if [ "$HOST_OS" = "linux" ]; then
-    if [ "$DISTRO_ID" = "ubuntu" ]; then
-      PACKAGES=(
-        bear
-        ccache
-        help2man
-        libfl-dev
-        libsystemc-dev
-        mold
-      )
-      # libunwind conflict on 22.04, can live without libjemalloc there
-      if [ "$DISTRO_VERSION" != "22.04" ]; then
-        PACKAGES+=(libjemalloc-dev)
-      fi
-      apt-get-retry update
-      apt-get-retry install --yes "${PACKAGES[@]}"
+  if [ "$CI_OS_NAME" = "linux" ]; then
+    sudo apt-get update ||
+    sudo apt-get update
+    sudo apt-get install ccache help2man libfl-dev ||
+    sudo apt-get install ccache help2man libfl-dev
+    if [ "$CI_RUNS_ON" = "ubuntu-20.04" ]; then
+      # Some conflict of libunwind verison on 22.04, can live without it for now
+      sudo apt-get install libgoogle-perftools-dev ||
+      sudo apt-get install libgoogle-perftools-dev
     fi
-  elif [ "$HOST_OS" = "macOS" ]; then
-    PACKAGES=(
-      autoconf
-      bison
-      ccache
-      flex
-      gperftools
-      help2man
-      perl
-    )
-    brew-retry update
-    brew-retry install "${PACKAGES[@]}"
+    if [ "$CI_RUNS_ON" = "ubuntu-20.04" ] || [ "$CI_RUNS_ON" = "ubuntu-22.04" ]; then
+      sudo apt-get install libsystemc libsystemc-dev ||
+      sudo apt-get install libsystemc libsystemc-dev
+    fi
+    if [ "$CI_RUNS_ON" = "ubuntu-22.04" ]; then
+      sudo apt-get install bear mold ||
+      sudo apt-get install bear mold
+    fi
+    if [ "$COVERAGE" = 1 ]; then
+      yes yes | sudo cpan -fi Parallel::Forker
+    fi
+    if [ "$CI_M32" = 1 ]; then
+      sudo apt-get install gcc-multilib g++-multilib ||
+      sudo apt-get install gcc-multilib g++-multilib
+    fi
+  elif [ "$CI_OS_NAME" = "osx" ]; then
+    brew update
+    brew install ccache perl gperftools
+  elif [ "$CI_OS_NAME" = "freebsd" ]; then
+    sudo pkg install -y autoconf bison ccache gmake perl5
   else
-    fatal "Unknown HOST_OS: '$HOST_OS'"
+    fatal "Unknown os: '$CI_OS_NAME'"
   fi
-elif [ "$STAGE" = "test" ]; then
+
+  if [ -n "$CCACHE_DIR" ]; then
+    mkdir -p "$CCACHE_DIR" && ./ci/ci-ccache-maint.bash
+  fi
+elif [ "$CI_BUILD_STAGE_NAME" = "test" ]; then
   ##############################################################################
   # Dependencies of jobs in the 'test' stage, i.e.: packages required to
   # run the tests
 
-  if [ "$HOST_OS" = "linux" ]; then
-    if [ "$DISTRO_ID" = "ubuntu" ]; then
-      PACKAGES=(
-        ccache
-        gdb
-        jq
-        lcov
-        libfl-dev
-        libsystemc-dev
-        mold
-        python3-clang
-        z3
-      )
-      apt-get-retry update
-      apt-get-retry install --yes "${PACKAGES[@]}"
+  if [ "$CI_OS_NAME" = "linux" ]; then
+    sudo apt-get update ||
+    sudo apt-get update
+    # libfl-dev needed for internal coverage's test runs
+    sudo apt-get install gdb gtkwave lcov libfl-dev ccache ||
+    sudo apt-get install gdb gtkwave lcov libfl-dev ccache
+    # Required for test_regress/t/t_dist_attributes.pl
+    if [ "$CI_RUNS_ON" = "ubuntu-22.04" ]; then
+      sudo apt-get install libclang-dev mold ||
+      sudo apt-get install libclang-dev mold
+      pip3 install clang==14.0
     fi
-  elif [ "$HOST_OS" = "macOS" ]; then
-    PACKAGES=(
-      ccache
-      jq
-      perl
-      z3
-    )
-    brew-retry update
-    brew-retry install "${PACKAGES[@]}"
+    if [ "$CI_RUNS_ON" = "ubuntu-20.04" ] || [ "$CI_RUNS_ON" = "ubuntu-22.04" ]; then
+      sudo apt-get install libsystemc-dev ||
+      sudo apt-get install libsystemc-dev
+    fi
+    if [ "$CI_M32" = 1 ]; then
+      sudo apt-get install lib32z1-dev gcc-multilib g++-multilib ||
+      sudo apt-get install lib32z1-dev gcc-multilib g++-multilib
+    fi
+  elif [ "$CI_OS_NAME" = "osx" ]; then
+    brew update
+    # brew cask install gtkwave # fst2vcd hangs at launch, so don't bother
+    brew install ccache perl
+  elif [ "$CI_OS_NAME" = "freebsd" ]; then
+    # fst2vcd fails with "Could not open '<input file>', exiting."
+    sudo pkg install -y ccache gmake perl5 python3
   else
-    fatal "Unknown HOST_OS: '$HOST_OS'"
+    fatal "Unknown os: '$CI_OS_NAME'"
   fi
   # Common installs
-  install-wavediff
-  # Workaround -fsanitize=address crash
-  sudo sysctl -w vm.mmap_rnd_bits=28
-elif [ "$STAGE" = "lint-py" ]; then
-  ##############################################################################
-  # Dependencies for nodist/clang_check_attributes
-
-  if [ "$HOST_OS" = "linux" ] && [ "$DISTRO_ID" = "ubuntu" ]; then
-    PACKAGES=(
-      python3-clang  # Not run, but importers are linted
-    )
-    apt-get-retry update
-    apt-get-retry install --yes "${PACKAGES[@]}"
-  fi
-elif [ "$STAGE" = "format" ]; then
-  ##############################################################################
-  # Dependencies of 'make format'
-
-  if [ "$HOST_OS" = "linux" ] && [ "$DISTRO_ID" = "ubuntu" ]; then
-    PACKAGES=(
-      clang-format-18  # Version pinned, so all of CI formats alike
-    )
-    apt-get-retry update
-    apt-get-retry install --yes "${PACKAGES[@]}"
-  fi
-elif [ "$STAGE" = "coverage" ]; then
-  ##############################################################################
-  # Dependencies of the coverage report job, which only collates what the
-  # 'test' stage jobs measured
-
-  if [ "$HOST_OS" = "linux" ] && [ "$DISTRO_ID" = "ubuntu" ]; then
-    PACKAGES=(
-      lcov
-    )
-    apt-get-retry update
-    apt-get-retry install --yes "${PACKAGES[@]}"
-  fi
-elif [ "$STAGE" = "rtlmeter-run" ]; then
-  ##############################################################################
-  # Dependencies of the RTLMeter jobs, which compile and run designs with an
-  # already built Verilator, so they need its runtime prerequisites only
-
-  if [ "$HOST_OS" = "linux" ] && [ "$DISTRO_ID" = "ubuntu" ]; then
-    PACKAGES=(
-      ccache
-      libfl-dev
-      libjemalloc-dev
-      libsystemc-dev
-      mold
-    )
-    apt-get-retry update
-    apt-get-retry install --yes "${PACKAGES[@]}"
+  if [ "$CI_RUNS_ON" != "ubuntu-14.04" ]; then
+    CI_CPAN_REPO=https://cpan.org
   fi
+  yes yes | sudo cpan -M $CI_CPAN_REPO -fi Parallel::Forker
+  install-vcddiff
 else
   ##############################################################################
   # Unknown build stage
-  fatal "Unknown stage '$STAGE'"
+  fatal "Unknown build stage: '$CI_BUILD_STAGE_NAME'"
 fi
-
-# Report where the tools we may have installed live (ok if some are missing)
-set +x
-echo "Tools:"
-for bin in autoconf bear bison ccache flex gdb help2man jq lcov mold perl wavediff z3; do
-  echo -n "  $bin: "
-  which "$bin" || echo "Not found"
-done

ci/ci-pages-notify.bash

@@ -1,167 +0,0 @@
-#!/usr/bin/env bash
-# DESCRIPTION: Verilator: CI script for 'pages.yml', notifies PRs
-#
-# SPDX-FileCopyrightText: 2025 Geza Lore
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-# Notify PRs via comment that their workflow reports are available
-
-# Note this deliberately does not 'set -e'. A run that cannot be notified, say
-# because its pull request was locked, must not hold up the notification of all
-# the others, so each failure below moves on to the next run instead. Its
-# artifact is then left in place, so it is retried on the next run of 'pages.yml'.
-
-# The account we post as, which is how we tell our own earlier notifications
-# from anybody else's comments. 'pages.yml' sets this to the slug of the app the
-# token belongs to. Set it to your own login when running this by hand. The 'jq'
-# filter below picks it up from the environment.
-if [ -z "${GH_AUTHOR:-}" ]; then
-  echo "GH_AUTHOR must hold the account we post as" >&2
-  exit 1
-fi
-echo "Posting as '${GH_AUTHOR}'"
-
-# Marker line separating the report from the history of the older reports
-readonly HISTORY_MARKER='<!-- Verilator CI notification history -->'
-# Opening line of the HTML comment stashing the history entry of the report
-# itself. It is not shown in its own history, only inherited by the ones
-# superseding it, hence it is kept out of sight until then.
-readonly NEXTHIST_MARKER='<!-- Verilator CI notification entry'
-
-# Create artifacts root directory
-ARTIFACTS_ROOT=artifacts
-mkdir -p ${ARTIFACTS_ROOT}
-
-for RUN_ID in ${PR_RUN_IDS//,/ }; do
-  # Create workflow artifacts directory
-  ARTIFACTS_DIR=${ARTIFACTS_ROOT}/${RUN_ID}
-  mkdir -p ${ARTIFACTS_DIR}
-
-  # Download artifact of this run, if exists
-  gh run download ${RUN_ID} --name pr-notification --dir ${ARTIFACTS_DIR} &> /dev/null || true
-
-  # Move on if no notification is required
-  if [ ! -f ${ARTIFACTS_DIR}/pr-number.txt ]; then
-    continue
-  fi
-
-  PR_NUMBER=$(cat ${ARTIFACTS_DIR}/pr-number.txt)
-  echo "@@@ Run ${RUN_ID}: notifying PR #${PR_NUMBER}"
-
-  # Everything below is created and validated by the 'upload-pr-notification'
-  # action. Move on if this artifact was not made by it, e.g. it is left over
-  # from an earlier version of the CI, so it does not hold up the other runs.
-  for f in body.txt key.txt hist.txt; do
-    if [ ! -f ${ARTIFACTS_DIR}/${f} ]; then
-      echo "Notification has no '${f}'" >&2
-      continue 2  # Note: continues the enclosing 'RUN_ID' loop
-    fi
-  done
-
-  # 'key.txt' holds the key naming the source of the notification. It goes on the
-  # first line of the comment as an HTML comment, so it is invisible when
-  # rendered, and is used below to find the stale notifications with the same
-  # key, which are then superseded by the new one and deleted.
-  COMMENT_MARKER="<!-- Verilator CI notification: $(cat ${ARTIFACTS_DIR}/key.txt) -->"
-
-  # Find the stale notifications from the same source on this PR. That is, our
-  # own comments with the same marker on their first line. Oldest first, as
-  # returned by the API. An app posts as '<slug>[bot]', so drop that suffix to
-  # compare against the slug. Move on if they cannot be listed, as without them
-  # we would post a duplicate instead of superseding them.
-  if ! COMMENT_MARKER="${COMMENT_MARKER}" \
-      gh api --paginate "repos/{owner}/{repo}/issues/${PR_NUMBER}/comments" \
-        --jq '.[]
-              | select((.user.login | rtrimstr("[bot]")) == env.GH_AUTHOR)
-              | select((.body | split("\n") | .[0] | rtrimstr("\r")) == env.COMMENT_MARKER)
-              | {id, body}' > ${ARTIFACTS_DIR}/stale.json; then
-    echo "Failed to list the comments of PR #${PR_NUMBER}" >&2
-    continue
-  fi
-
-  # Inherit the history of the newest stale notification. There should only ever
-  # be one, and it holds the whole history anyway, as each notification inherits
-  # the history of the one it superseded. Any older ones are only deleted below.
-  STALE_COUNT=$(wc -l < ${ARTIFACTS_DIR}/stale.json)
-  if [ ${STALE_COUNT} -gt 1 ]; then
-    echo "Found ${STALE_COUNT} stale notifications, only the newest is inherited from"
-  fi
-
-  HISTORY=${ARTIFACTS_DIR}/history.txt
-  touch ${HISTORY}
-  if [ ${STALE_COUNT} -gt 0 ]; then
-    tail -n 1 ${ARTIFACTS_DIR}/stale.json | jq -r '.body' | tr -d '\r' > ${ARTIFACTS_DIR}/stale-body.txt
-    # Its own entry, stashed in an HTML comment
-    awk -v marker="${NEXTHIST_MARKER}" '
-      $0 == marker { inside = 1; next }
-      !inside { next }
-      $0 == "-->" { exit }
-      NF { print }
-    ' ${ARTIFACTS_DIR}/stale-body.txt >> ${HISTORY}
-    # Followed by its history, without the enclosing '<details>' markup
-    awk -v marker="${HISTORY_MARKER}" '
-      $0 == marker { inside = 1; next }
-      !inside { next }
-      $0 == "<details>" || /^<summary>/ { next }
-      $0 == "</details>" { exit }
-      NF { print }
-    ' ${ARTIFACTS_DIR}/stale-body.txt >> ${HISTORY}
-  fi
-
-  # Assemble the comment. Starts with the marker and the report.
-  COMMENT=${ARTIFACTS_DIR}/comment.txt
-  cat > ${COMMENT} <<COMMENT_TEMPLATE
-${COMMENT_MARKER}
-$(cat ${ARTIFACTS_DIR}/body.txt)
-COMMENT_TEMPLATE
-
-  # Then the history inherited from the notifications this one supersedes, so
-  # the older reports remain reachable from the only remaining comment.
-  if [ -s ${HISTORY} ]; then
-    echo "History holds $(wc -l < ${HISTORY}) entries"
-    cat >> ${COMMENT} <<HISTORY_TEMPLATE
-${HISTORY_MARKER}
-<details>
-<summary>PR history</summary>
-
-$(cat ${HISTORY})
-</details>
-HISTORY_TEMPLATE
-  fi
-
-  # Finally this report's own history entry, stashed out of sight until a later
-  # notification inherits it.
-  cat >> ${COMMENT} <<NEXTHIST_TEMPLATE
-${NEXTHIST_MARKER}
-$(cat ${ARTIFACTS_DIR}/hist.txt)
--->
-NEXTHIST_TEMPLATE
-
-  # Post it. Move on if this failed, without deleting anything below, otherwise
-  # the history held by the stale notifications would be lost.
-  if ! jq -Rs '{body: .}' ${COMMENT} \
-      | gh api --method POST "repos/{owner}/{repo}/issues/${PR_NUMBER}/comments" \
-          --input - > ${ARTIFACTS_DIR}/posted.json; then
-    echo "Failed to post this notification on PR #${PR_NUMBER}:" >&2
-    cat ${COMMENT} >&2
-    continue
-  fi
-  echo "Posted $(jq -r '.html_url' ${ARTIFACTS_DIR}/posted.json)"
-
-  # Delete the stale notifications, so only the new one remains
-  for COMMENT_ID in $(jq -r '.id' ${ARTIFACTS_DIR}/stale.json); do
-    echo "Deleting stale comment ${COMMENT_ID}"
-    gh api --method DELETE "repos/{owner}/{repo}/issues/comments/${COMMENT_ID}"
-  done
-
-  # Get the artifact IDs. Note there can be more than one artifact named
-  # 'pr-notification' for a single run, as the artifacts endpoint lists
-  # artifacts across all run attempts, and a re-run uploads a new one while
-  # keeping the previous attempt's artifact.
-  ARTIFACT_IDS=$(gh api "repos/{owner}/{repo}/actions/runs/${RUN_ID}/artifacts" --jq '.artifacts[] | select(.name == "pr-notification") | .id')
-
-  # Delete them all, so we only notify once
-  for ARTIFACT_ID in ${ARTIFACT_IDS}; do
-    gh api --method DELETE "repos/{owner}/{repo}/actions/artifacts/${ARTIFACT_ID}"
-  done
-done

ci/ci-pages.bash

@@ -1,268 +0,0 @@
-#!/usr/bin/env bash
-# DESCRIPTION: Verilator: CI script for 'pages.yml', builds the GitHub Pages
-#
-# SPDX-FileCopyrightText: 2025 Geza Lore
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-# This scipt build the content of the GitHub Pages for the repository.
-# Currently this hosts code coverage reports, and PR RTLMeter detailed reports.
-
-# Developer note: You should be able to run this script in your local checkout
-# if you have GitHub CLI (command 'gh') setup, authenticated ('gh auth login'),
-# and have set a default repository ('gh repo set-default').
-
-# Create pages root directory. The contents of this directory will be deployed
-# and served via GitHubPages
-readonly PAGES_ROOT=pages
-mkdir -p ${PAGES_ROOT}
-
-# Get the current repo URL - might differ on a fork
-readonly REPO_URL=$(gh repo view --json url --jq .url)
-
-# Set GITHUB_OUTPUT when run locally for testing
-if [[ -z "$GITHUB_OUTPUT" ]]; then
-  GITHUB_OUTPUT=github-output.txt
-fi
-
-# Run IDs of PR jobs processed
-PR_RUN_IDS=""
-
-# Populates ${PAGES_ROOT}/coverage-reports
-compile_coverage_reports() {
-  # We will process all runs up to and including this date. This is chosen to be
-  # slightly less than the artifact retention period for simplicity.
-  local OLDEST=$(date --date="28 days ago" --iso-8601=date)
-
-  # Gather all coverage workflow runs within the time window
-  gh run list -w coverage.yml --limit 1000 --created ">=${OLDEST}" --json "databaseId,event,status,conclusion,createdAt,number" > recentRuns.json
-
-  # Select completd runs that were not cancelled or skipped, sort by descending run number
-  jq 'sort_by(-.number) | map(select(.status == "completed" and (.conclusion == "success" or .conclusion == "failure")))' recentRuns.json > completedRuns.json
-  echo "@@@ $(jq length completedRuns.json) of $(jq length recentRuns.json) runs since ${OLDEST} completed with success or failure"
-
-  # Create artifacts root directory
-  local ARTIFACTS_ROOT=artifacts-coverage
-  mkdir -p ${ARTIFACTS_ROOT}
-
-  # Create coverage reports root directory
-  local COVERAGE_ROOT=${PAGES_ROOT}/coverage-reports
-  mkdir -p ${COVERAGE_ROOT}
-
-  # Create index page contents fragment
-  local CONTENTS=contents.tmp
-  echo > ${CONTENTS}
-
-  # Iterate over all unique event types that triggered the workflows
-  for EVENT in $(jq -r 'map(.event) | sort | unique | .[]' completedRuns.json); do
-    echo "@@@ Processing '${EVENT}' runs"
-
-    # Emit section header if a report exists with this event type
-    EMIT_SECTION_HEADER=1
-
-    # For each worfklow run that was triggered by this event type
-    for RUN_ID in $(jq ".[] | select(.event == \"${EVENT}\") |.databaseId" completedRuns.json); do
-      # Extract the info of this run
-      jq ".[] | select(.databaseId == $RUN_ID)" completedRuns.json > workflow.json
-
-      # Record run ID of PR job
-      [[ $EVENT != "pull_request" ]] || PR_RUN_IDS="$PR_RUN_IDS $RUN_ID"
-
-      # Create workflow artifacts directory
-      local ARTIFACTS_DIR=${ARTIFACTS_ROOT}/${RUN_ID}
-      mkdir -p ${ARTIFACTS_DIR}
-
-      # Download artifacts of this run, if exists
-      gh run download ${RUN_ID} --name coverage-report --dir ${ARTIFACTS_DIR} &> /dev/null || true
-
-      # Move on if no coverage report is available
-      if [ ! -d ${ARTIFACTS_DIR}/report ]; then
-        continue
-      fi
-      echo "@@@ Run ${RUN_ID}: coverage report found"
-
-      # Emit section header
-      if [[ -n $EMIT_SECTION_HEADER ]]; then
-        unset EMIT_SECTION_HEADER
-        if [[ $EVENT == "pull_request" ]]; then
-          echo "<h4>Patch coverage reports for '${EVENT}' runs:</h4>" >> ${CONTENTS}
-        else
-          echo "<h4>Code coverage reports for '${EVENT}' runs:</h4>" >> ${CONTENTS}
-        fi
-      fi
-
-      # Create pages subdirectory
-      mv ${ARTIFACTS_DIR}/report ${COVERAGE_ROOT}/${RUN_ID}
-
-      # Add index page content
-      local WORKFLOW_CREATED=$(jq -r '.createdAt' workflow.json)
-      local WOFKRLOW_NUMBER=$(jq -r '.number' workflow.json)
-      cat >> ${CONTENTS} <<CONTENTS_TEMPLATE
-        Run <a href="${RUN_ID}/index.html">#${WOFKRLOW_NUMBER}</a>
-        | GitHub: <a href="${REPO_URL}/actions/runs/${RUN_ID}">${RUN_ID}</a>
-        | started at: ${WORKFLOW_CREATED}
-CONTENTS_TEMPLATE
-      if [ -e ${ARTIFACTS_DIR}/pr-number.txt ]; then
-        local PRNUMBER=$(cat ${ARTIFACTS_DIR}/pr-number.txt)
-        echo " | Pull request: <a href=\"${REPO_URL}/pull/${PRNUMBER}\">#${PRNUMBER}</a>" >> ${CONTENTS}
-      fi
-      echo "<br>" >> ${CONTENTS}
-    done
-
-    # Section break
-    if [[ -z "$EMIT_SECTION_HEADER" ]]; then
-      echo "<hr>" >> ${CONTENTS}
-    fi
-  done
-
-  # Write coverage report index.html
-  cat > ${COVERAGE_ROOT}/index.html  <<INDEX_TEMPLATE
-  <html>
-
-  <head>
-    <title>Verilator CI coverage reports</title>
-    <style>
-    body {
-      font-family: courier, serif;
-      background-color: #f3f3f3;
-      a {
-        color: #008fd7;
-      }
-    }
-    </style>
-  </head>
-
-  <body>
-  $(cat ${CONTENTS})
-  <h4>Assembled $(date --iso-8601=minutes --utc)</h4>
-  <body>
-
-  </html>
-INDEX_TEMPLATE
-
-  # Report size
-  du -shc ${COVERAGE_ROOT}/*
-}
-
-# Populates ${PAGES_ROOT}/rtlmeter-reports
-compile_rtlmeter_reports() {
-  # We will process all runs up to and including this date. This is chosen to be
-  # slightly less than the artifact retention period for simplicity.
-  local OLDEST=$(date --date="28 days ago" --iso-8601=date)
-
-  # Gather all RTLMeter workflow runs within the time window
-  gh run list -w rtlmeter.yml --limit 1000 --created ">=${OLDEST}" --json "databaseId,event,status,conclusion,createdAt,number" > recentRuns.json
-
-  # Select completd runs that were not cancelled or skipped, sort by descending run number
-  jq 'sort_by(-.number) | map(select(.status == "completed" and (.conclusion == "success" or .conclusion == "failure")))' recentRuns.json > completedRuns.json
-  echo "@@@ $(jq length completedRuns.json) of $(jq length recentRuns.json) runs since ${OLDEST} completed with success or failure"
-
-  # Create artifacts root directory
-  local ARTIFACTS_ROOT=artifacts-rtlmeter
-  mkdir -p ${ARTIFACTS_ROOT}
-
-  # Create rtlmeter reports root directory
-  local RTLMETER_ROOT=${PAGES_ROOT}/rtlmeter-reports
-  mkdir -p ${RTLMETER_ROOT}
-
-  # Create index page contents fragment
-  local CONTENTS=contents.tmp
-  echo > ${CONTENTS}
-
-  # Iterate over all unique event types that triggered the workflows
-  for EVENT in $(jq -r 'map(.event) | sort | unique | .[]' completedRuns.json); do
-    echo "@@@ Processing '${EVENT}' runs"
-
-    # Emit section header if a report exists with this event type
-    EMIT_SECTION_HEADER=1
-
-    # For each worfklow run that was triggered by this event type
-    for RUN_ID in $(jq ".[] | select(.event == \"${EVENT}\") |.databaseId" completedRuns.json); do
-      # Extract the info of this run
-      jq ".[] | select(.databaseId == $RUN_ID)" completedRuns.json > workflow.json
-
-      # Record run ID of PR job
-      [[ $EVENT != "pull_request" ]] || PR_RUN_IDS="$PR_RUN_IDS $RUN_ID"
-
-      # Create workflow artifacts directory
-      local ARTIFACTS_DIR=${ARTIFACTS_ROOT}/${RUN_ID}
-      mkdir -p ${ARTIFACTS_DIR}
-
-      # Download artifacts of this run, if exists
-      gh run download ${RUN_ID} --name rtlmeter-report --dir ${ARTIFACTS_DIR} &> /dev/null || true
-
-      # Move on if no RTLMeter report is available
-      if [ ! -d ${ARTIFACTS_DIR}/report ]; then
-        continue
-      fi
-      echo "@@@ Run ${RUN_ID}: RTLMeter report found"
-
-      # Emit section header
-      if [[ -n $EMIT_SECTION_HEADER ]]; then
-        unset EMIT_SECTION_HEADER
-        echo "<h4>RTLMeter reports for '${EVENT}' runs:</h4>" >> ${CONTENTS}
-      fi
-
-      # Create pages subdirectory
-      mv ${ARTIFACTS_DIR}/report ${RTLMETER_ROOT}/${RUN_ID}
-
-      # Add index page content
-      local WORKFLOW_CREATED=$(jq -r '.createdAt' workflow.json)
-      local WOFKRLOW_NUMBER=$(jq -r '.number' workflow.json)
-      cat >> ${CONTENTS} <<CONTENTS_TEMPLATE
-        Run <a href="${RUN_ID}/index.html">#${WOFKRLOW_NUMBER}</a>
-        | GitHub: <a href="${REPO_URL}/actions/runs/${RUN_ID}">${RUN_ID}</a>
-        | started at: ${WORKFLOW_CREATED}
-CONTENTS_TEMPLATE
-      if [ -e ${ARTIFACTS_DIR}/pr-number.txt ]; then
-        local PRNUMBER=$(cat ${ARTIFACTS_DIR}/pr-number.txt)
-        echo " | Pull request: <a href=\"${REPO_URL}/pull/${PRNUMBER}\">#${PRNUMBER}</a>" >> ${CONTENTS}
-      fi
-      echo "<br>" >> ${CONTENTS}
-    done
-
-    # Section break
-    if [[ -z "$EMIT_SECTION_HEADER" ]]; then
-      echo "<hr>" >> ${CONTENTS}
-    fi
-  done
-
-  # Write rtlmeter report index.html
-  cat > ${RTLMETER_ROOT}/index.html  <<INDEX_TEMPLATE
-  <html>
-
-  <head>
-    <title>Verilator CI RTLMeter reports</title>
-    <style>
-    body {
-      font-family: courier, serif;
-      background-color: #f3f3f3;
-      a {
-        color: #008fd7;
-      }
-    }
-    </style>
-  </head>
-
-  <body>
-  $(cat ${CONTENTS})
-  <h4>Assembled $(date --iso-8601=minutes --utc)</h4>
-  <body>
-
-  </html>
-INDEX_TEMPLATE
-
-  # Report size
-  du -shc ${RTLMETER_ROOT}/*
-}
-
-# Compilie coverage reports
-compile_coverage_reports;
-
-# Compile RTLMeter reports
-compile_rtlmeter_reports;
-
-# You can build any other content here to be put under ${PAGES_ROOT}
-
-# Set output to all affected unique PR run IDs (comma separated, no trailing comma)
-IDS=$(echo ${PR_RUN_IDS} | xargs -n1 | sort -u | paste -sd,)
-echo "pr-run-ids=${IDS}" >> $GITHUB_OUTPUT

ci/ci-rtlmeter-cases.py

@@ -1,218 +0,0 @@
-#!/usr/bin/env python3
-# DESCRIPTION: Verilator: RTLMeter cases to run in the rtlmeter.yml CI workflow
-#
-# SPDX-FileCopyrightText: 2026 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-###############################################################################
-# Defines the RTLMeter cases to run in CI. This is consumed by the 'start' job
-# in rtlmeter.yml, which captures the printed JSON and feeds it to the run job
-# matrices.
-###############################################################################
-
-import argparse
-import json
-
-# Cases to run for scheduled runs, keyyed by the 'run tag' used in rtlmeter.yml
-# The associated priority is roughly the number of minutes it takes to run the
-# job, the emitted job matrix will try to start longest jobs first.
-
-# Cases to run for non-PR jobs (e.g.: nightly schedule)
-# fmt: off
-CASES = {
-    "gcc": [
-        ("BlackParrot:1x1:*",                    5),
-        ("BlackParrot:2x2:*",                    14),
-        ("BlackParrot:4x4:*",                    25),
-        ("Caliptra:default:*",                   19),
-        ("HummingbirdV2-E203:default:*",         3),
-        ("HummingbirdV2-E203:nodelay:*",         3),
-        ("NVDLA:*",                              29),
-        ("OpenPiton:1x1:*",                      4),
-        ("OpenPiton:2x2:*",                      7),
-        ("OpenPiton:4x4:*",                      10),
-        ("OpenTitan:*",                          16),
-        ("Servant:qerv:*",                       2),
-        ("Servant:serv:*",                       2),
-        ("VeeR-EH1:asic:*",                      4),
-        ("VeeR-EH1:default:*",                   6),
-        ("VeeR-EH1:hiperf:*",                    5),
-        ("VeeR-EH2:asic:*",                      13),
-        ("VeeR-EH2:default:*",                   6),
-        ("VeeR-EH2:hiperf:*",                    12),
-        ("VeeR-EL2:asic:*",                      4),
-        ("VeeR-EL2:default:*",                   4),
-        ("VeeR-EL2:hiperf:*",                    4),
-        ("Vortex:mini:*",                        3),
-        ("Vortex:sane:*",                        6),
-        ("XiangShan:default-chisel3:* !*:linux", 31),
-        ("XiangShan:default-chisel6:* !*:linux", 28),
-        ("XiangShan:mini-chisel3:* !*:linux",    13),
-        ("XiangShan:mini-chisel6:* !*:linux",    15),
-        ("XuanTie-C906:*",                       5),
-        ("XuanTie-C910:*",                       9),
-        ("XuanTie-E902:*",                       5),
-        ("XuanTie-E906:*",                       6),
-    ],
-    "clang": [
-        ("BlackParrot:1x1:*",                    5),
-        ("BlackParrot:2x2:*",                    9),
-        ("BlackParrot:4x4:*",                    12),
-        ("Caliptra:default:*",                   16),
-        ("HummingbirdV2-E203:default:*",         10),
-        ("HummingbirdV2-E203:nodelay:*",         10),
-        ("NVDLA:*",                              28),
-        ("OpenPiton:1x1:*",                      5),
-        ("OpenPiton:2x2:*",                      6),
-        ("OpenPiton:4x4:*",                      8),
-        ("OpenTitan:*",                          10),
-        ("Servant:qerv:phil",                    17),
-        ("Servant:serv:phil",                    15),
-        ("VeeR-EH1:asic:*",                      6),
-        ("VeeR-EH1:default:*",                   8),
-        ("VeeR-EH1:hiperf:*",                    5),
-        ("VeeR-EH2:asic:*",                      9),
-        ("VeeR-EH2:default:*",                   8),
-        ("VeeR-EH2:hiperf:*",                    7),
-        ("VeeR-EL2:asic:*",                      4),
-        ("VeeR-EL2:default:*",                   5),
-        ("VeeR-EL2:hiperf:*",                    5),
-        ("Vortex:mini:*",                        3),
-        ("Vortex:sane:*",                        5),
-        ("XiangShan:default-chisel3:* !*:linux", 21),
-        ("XiangShan:default-chisel6:* !*:linux", 19),
-        ("XiangShan:mini-chisel3:* !*:linux",    8),
-        ("XiangShan:mini-chisel6:* !*:linux",    8),
-        ("XuanTie-C906:*",                       3),
-        ("XuanTie-C910:*",                       7),
-        ("XuanTie-E902:*",                       7),
-        ("XuanTie-E906:*",                       7),
-    ],
-    "gcc-hier": [
-        ("BlackParrot:1x1:*",    4),
-        ("BlackParrot:2x2:*",    16),
-        ("BlackParrot:4x4:*",    25),
-        ("NVDLA:*",              25),
-        ("OpenPiton:16x16:dhry", 16),
-        ("OpenPiton:1x1:*",      4),
-        ("OpenPiton:2x2:*",      4),
-        ("OpenPiton:4x4:*",      4),
-        ("OpenPiton:8x8:*",      6),
-        ("XuanTie-C910:*",       7),
-    ],
-}
-# fmt: on
-
-# Cases to run for PR jobs
-# fmt: off
-CASES_PR = {
-    "gcc": [
-        ("BlackParrot:1x1:*",                    5),
-        ("BlackParrot:4x4:*",                    25),
-        ("Caliptra:default:*",                   19),
-        ("NVDLA:*",                              29),
-        ("HummingbirdV2-E203:default:*",         3),
-        ("HummingbirdV2-E203:nodelay:*",         3),
-        ("OpenPiton:1x1:*",                      4),
-        ("OpenPiton:4x4:*",                      10),
-        ("OpenTitan:*",                          16),
-        ("Servant:qerv:*",                       2),
-        ("Servant:serv:*",                       2),
-        ("VeeR-EH1:asic:*",                      4),
-        ("VeeR-EH1:default:*",                   6),
-        ("VeeR-EH1:hiperf:*",                    5),
-        ("VeeR-EH2:asic:*",                      13),
-        ("VeeR-EH2:default:*",                   6),
-        ("VeeR-EH2:hiperf:*",                    12),
-        ("VeeR-EL2:asic:*",                      4),
-        ("VeeR-EL2:default:*",                   4),
-        ("VeeR-EL2:hiperf:*",                    4),
-        ("Vortex:mini:*",                        3),
-        ("Vortex:sane:*",                        6),
-        ("XiangShan:default-chisel3:* !*:linux", 31),
-        ("XiangShan:default-chisel6:* !*:linux", 28),
-        ("XiangShan:mini-chisel3:* !*:linux",    13),
-        ("XiangShan:mini-chisel6:* !*:linux",    15),
-        ("XuanTie-C906:*",                       5),
-        ("XuanTie-C910:*",                       9),
-        ("XuanTie-E902:*",                       5),
-        ("XuanTie-E906:*",                       6),
-    ],
-    "clang": [
-        ("BlackParrot:1x1:*",                    5),
-        ("BlackParrot:4x4:*",                    12),
-        ("Caliptra:default:*",                   16),
-        ("NVDLA:*",                              28),
-        ("HummingbirdV2-E203:default:*",         10),
-        ("HummingbirdV2-E203:nodelay:*",         10),
-        ("OpenPiton:1x1:*",                      5),
-        ("OpenPiton:4x4:*",                      8),
-        ("OpenTitan:*",                          10),
-        ("Servant:qerv:phil",                    17),
-        ("Servant:serv:phil",                    15),
-        ("VeeR-EH1:asic:*",                      6),
-        ("VeeR-EH1:default:*",                   8),
-        ("VeeR-EH1:hiperf:*",                    5),
-        ("VeeR-EH2:asic:*",                      9),
-        ("VeeR-EH2:default:*",                   8),
-        ("VeeR-EH2:hiperf:*",                    7),
-        ("VeeR-EL2:asic:*",                      4),
-        ("VeeR-EL2:default:*",                   5),
-        ("VeeR-EL2:hiperf:*",                    5),
-        ("Vortex:mini:*",                        3),
-        ("Vortex:sane:*",                        5),
-        ("XiangShan:default-chisel3:* !*:linux", 21),
-        ("XiangShan:default-chisel6:* !*:linux", 19),
-        ("XiangShan:mini-chisel3:* !*:linux",    8),
-        ("XiangShan:mini-chisel6:* !*:linux",    8),
-        ("XuanTie-C906:*",                       3),
-        ("XuanTie-C910:*",                       7),
-        ("XuanTie-E902:*",                       7),
-        ("XuanTie-E906:*",                       7),
-    ],
-    "gcc-hier": [
-        ("BlackParrot:1x1:*",    4),
-        ("BlackParrot:4x4:*",    25),
-        ("NVDLA:*",              25),
-        ("OpenPiton:16x16:dhry", 16),
-        ("OpenPiton:1x1:*",      4),
-        ("OpenPiton:4x4:*",      4),
-        ("OpenPiton:8x8:*",      6),
-        ("XuanTie-C910:*",       7),
-    ],
-}
-# fmt: on
-
-parser = argparse.ArgumentParser(
-    description="Print the RTLMeter CI cases as JSON, keyed by run tag")
-parser.add_argument("--event-name",
-                    required=True,
-                    help="GitHub event name that triggered the workflow")
-parser.add_argument(
-    "--ci-testing",
-    action="store_true",
-    help="Print only the shortest (lowest priority) case per tag, to reduce CI testing time")
-args = parser.parse_args()
-
-# Pull requests use the reduced 'CASES_PR' set, other events (e.g.: the nightly
-# schedule) use the full 'CASES' set.
-is_pr = args.event_name == "pull_request"
-selected = CASES_PR if is_pr else CASES
-
-cases = {}
-for tag, entries in selected.items():
-    # Highest priority (longest) first
-    ordered = sorted(entries, key=lambda cp: cp[1], reverse=True)
-    # While tweaking the CI, keep only the shortest (lowest priority) case to minimise churn time
-    if args.ci_testing:
-        ordered = ordered[-1:]
-    # Case filters appended to every case for this tag/event
-    suffix = ""
-    # Filters out the non-hierarchical case variants for the hierarchical job
-    if tag == "gcc-hier":
-        suffix += " !-hier"
-    # Filter out hello tests on pull requests, these just add measurement noise
-    if is_pr:
-        suffix += " !*:hello"
-    cases[tag] = [case + suffix for case, _ in ordered]
-print(json.dumps(cases, separators=(",", ":")))

ci/ci-rtlmeter-report.bash

@@ -1,175 +0,0 @@
-#!/usr/bin/env bash
-# DESCRIPTION: Verilator: CI script for 'rtlmeter.yml' PR results
-#
-# SPDX-FileCopyrightText: 2026 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-# This script builds the content of the response comment posted on PRs
-# at the end of RTLMeter runs.
-
-# Developer note: You should be able to run this script in your local checkout
-# if you have GitHub CLI (command 'gh') setup, authenticated ('gh auth login'),
-# and have set a default repository ('gh repo set-default').
-
-# Trace when running in the CI
-[ "$GITHUB_ACTIONS" != "true" ] || set -x
-
-# Arguments:
-#  1. run ID
-#  2. SHA of the event that triggered the run (for a PR, the test merge commit)
-#  rest: run tags
-RUN_ID=$1; shift
-RUN_SHA=$1; shift
-RUNS="$@"
-
-# $VERILATOR_CHECKOUT/ci directory
-SCRIPT_DIR=$(readlink -f $(dirname ${BASH_SOURCE[0]}))
-
-# Move into a temporary directory
-rm -rf rtlmeter-report
-mkdir rtlmeter-report
-pushd rtlmeter-report &> /dev/null
-TMP_DIR=$(readlink -f .)
-
-# Download the combined results. 'combine-results' uploads a single artifact
-# for each version, holding the per-tag JSON files (e.g. all-results-gcc.json):
-#  - 'all-results'   for the new version
-#  - 'all-reference' for the old reference version
-mkdir new ref
-NEW_DIR=$(readlink -f new)
-REF_DIR=$(readlink -f ref)
-gh run download ${RUN_ID} --name all-results   --dir $NEW_DIR
-gh run download ${RUN_ID} --name all-reference --dir $REF_DIR
-
-# Get Some metadata about the runs
-RUN_URL=$(gh run view $RUN_ID --json url --jq ".url")
-RUN_NUM=$(gh run view $RUN_ID --json number --jq ".number")
-
-# Repository owner and name of the default repository, used to build the
-# GitHub Pages URL of the detailed report. The owner is lowercased, as required
-# for the '<owner>.github.io' Pages domain. Resolved here, while still in the
-# default repository's git context (before the 'cd rtlmeter' below).
-PAGES_OWNER=$(gh repo view --json owner --jq '.owner.login' | tr '[:upper:]' '[:lower:]')
-PAGES_NAME=$(gh repo view --json name --jq '.name')
-
-# The 'old' reference was built from the target branch base commit, which is
-# the first parent of the triggering merge commit (same as the 'start' job in
-# rtlmeter.yml). Resolved here, while still in the default repository's git
-# context (before the 'cd rtlmeter' below).
-REF_SHA=$(gh api "repos/{owner}/{repo}/commits/$RUN_SHA" --jq '.parents[0].sha')
-
-# Go back to root directory
-popd &> /dev/null
-# Go to RTLMeter directory
-cd rtlmeter
-
-# Compare results
-SUMMARY_ARGS=()
-for r in $RUNS; do
-  CMP_JSON=$TMP_DIR/cmp-$r.json
-  # Gather args for summary script
-  SUMMARY_ARGS+=($NEW_DIR/all-results-$r.json $CMP_JSON)
-  # Create JSON
-  ./rtlmeter compare --format json --steps "*" --metrics "*" \
-    $REF_DIR/all-reference-$r.json $NEW_DIR/all-results-$r.json > $CMP_JSON
-  # Also create detailed tables
-  ./rtlmeter compare --format ascii --steps 'verilate' --metrics '*' $REF_DIR/all-reference-$r.json $NEW_DIR/all-results-$r.json > $TMP_DIR/verilate-$r.txt
-  ./rtlmeter compare --format ascii --steps 'cppbuild' --metrics '*' $REF_DIR/all-reference-$r.json $NEW_DIR/all-results-$r.json > $TMP_DIR/cppbuild-$r.txt
-  ./rtlmeter compare --format ascii --steps 'execute'  --metrics '*' $REF_DIR/all-reference-$r.json $NEW_DIR/all-results-$r.json > $TMP_DIR/execute-$r.txt
-  # Chop them at new lines, into one table per file
-  awk -v RS= -v prefix=$TMP_DIR/$r-frag '{print > sprintf("%s-verilate-%02d.txt",prefix,NR)}' $TMP_DIR/verilate-$r.txt
-  awk -v RS= -v prefix=$TMP_DIR/$r-frag '{print > sprintf("%s-cppbuild-%02d.txt",prefix,NR)}' $TMP_DIR/cppbuild-$r.txt
-  awk -v RS= -v prefix=$TMP_DIR/$r-frag '{print > sprintf("%s-execute-%02d.txt" ,prefix,NR)}' $TMP_DIR/execute-$r.txt
-done
-
-# Create summary, suppress failure, but save the status reported to pass back.
-STATUS=0
-venv/bin/python3 $SCRIPT_DIR/ci-rtlmeter-report.py ${SUMMARY_ARGS[@]} > $TMP_DIR/summary.txt || STATUS=$?
-# Print it
-cat $TMP_DIR/summary.txt
-
-REPORT_URL=https://${PAGES_OWNER}.github.io/${PAGES_NAME}/rtlmeter-reports/${RUN_ID}/index.html
-
-###############################################################################
-# Create the PR notification
-###############################################################################
-
-NOTIFICATION_DIR=$TMP_DIR/notification
-mkdir -p $NOTIFICATION_DIR
-
-cat > ${NOTIFICATION_DIR}/body.txt <<NOTIFICATION_TEMPLATE
-Performance metrics for PR workflow [#$RUN_NUM]($RUN_URL), comparing:
-- target branch commit [${REF_SHA:0:9}](https://github.com/${PAGES_OWNER}/${PAGES_NAME}/commit/${REF_SHA}) (A)
-- with PR merge commit [${RUN_SHA:0:9}](https://github.com/${PAGES_OWNER}/${PAGES_NAME}/commit/${RUN_SHA}) (B)
-
-<details open>
-  <summary>Summary of all runs</summary>
-  <pre>
-$(cat $TMP_DIR/summary.txt)
-  </pre>
-</details>
-
-The reported numbers are the geometric means of the ratios of the metrics over all cases,
-less than 1 is a regression, greater than 1 is an improvement.
-The jobs run on variable and noisy runners, so some variance is expected between runs.
-
-Detailed report: [${RUN_ID}](${REPORT_URL})
-NOTIFICATION_TEMPLATE
-
-echo "Workflow [#$RUN_NUM]($RUN_URL) report: [${RUN_ID}](${REPORT_URL})" > ${NOTIFICATION_DIR}/hist.txt
-
-###############################################################################
-# Create detailed report
-###############################################################################
-
-REPORT=$TMP_DIR/body.html
-cat > $REPORT <<SUMMARY_TEMPLATE
-<h3>Summary of all runs</h3>
-<pre>
-$(cat $TMP_DIR/summary.txt)
-</pre>
-SUMMARY_TEMPLATE
-echo "<h3>Detailed results</h3>" >> $REPORT
-for r in $RUNS; do
-  RUN_NAME=$(jq -rj ".[0].runName" $NEW_DIR/all-results-$r.json)
-  echo "<h4>$RUN_NAME</h4>" >> $REPORT
-  for f in $(ls -1 $TMP_DIR/$r-frag-verilate-*.txt | sort) \
-           $(ls -1 $TMP_DIR/$r-frag-cppbuild-*.txt | sort) \
-           $(ls -1 $TMP_DIR/$r-frag-execute-*.txt | sort); do
-    cat >> $REPORT <<DETAIL_TAMPLATE
-    <details>
-      <summary>$(head -n 1 $f | tr -d '\n')</summary>
-      <pre>
-$(tail -n +2 $f)
-      </pre>
-    </details>
-DETAIL_TAMPLATE
-  done
-done
-
-# Turn the report into a proper HTML page
-mkdir -p ${TMP_DIR}/report
-cat > ${TMP_DIR}/report/index.html <<INDEX_TEMPLATE
-<html>
-
-  <head>
-    <title>Verilator RTLMeter report #${RUN_NUM}</title>
-    <style>
-    body {
-      font-family: courier, serif;
-      background-color: #f3f3f3;
-      a {
-        color: #008fd7;
-      }
-    }
-    </style>
-  </head>
-
-  <body>
-$(cat ${TMP_DIR}/body.html)
-  </body>
-
-</html>
-INDEX_TEMPLATE
-
-exit $STATUS

ci/ci-rtlmeter-report.py

@@ -1,137 +0,0 @@
-# DESCRIPTION: Verilator: CI script for 'rtlmeter.yml' PR results
-#
-# SPDX-FileCopyrightText: 2026 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-###############################################################################
-# This script runs with the venv of **RTLMeter**
-###############################################################################
-
-import sys
-import json
-import tabulate
-from typing import Final, List
-
-tabulate.PRESERVE_WHITESPACE = True
-tabulate.MIN_PADDING = 0
-
-_ASCII_TABLE_FORMAT: Final = tabulate.TableFormat(
-    lineabove=tabulate.Line("╒═", "═", "═╤═", "═╕"),
-    linebelowheader=tabulate.Line("╞═", "═", "═╪═", "═╡"),
-    linebelow=tabulate.Line("╘═", "═", "═╧═", "═╛"),
-    headerrow=tabulate.DataRow("│ ", " │ ", " │"),
-    datarow=tabulate.DataRow("│ ", " │ ", " │"),
-    linebetweenrows=None,
-    padding=0,
-    with_header_hide=None,
-)
-
-
-def printTable(table: List[List[str]], **kwargs) -> None:
-    print(tabulate.tabulate(table, tablefmt=_ASCII_TABLE_FORMAT, **kwargs))
-
-
-# fmt: off
-stepMetric = (
-    # Step,      Metric,    Status Brackets
-    ("execute",  "speed",   ("❌", 0.96, "⚠️", 0.98, "✅", 1.02, "💡", 1.04, "⭐")),
-    ("execute",  "memory",  ("❌", 0.90, "⚠️", 0.95, "✅", 1.05, "💡", 1.10, "⭐")),
-    ("verilate", "cpu",     ("❌", 0.96, "⚠️", 0.98, "✅", 1.02, "💡", 1.04, "⭐")),
-    ("verilate", "memory",  ("❌", 0.90, "⚠️", 0.95, "✅", 1.05, "💡", 1.10, "⭐")),
-    ("cppbuild", "cpu",     ("❌", 0.96, "⚠️", 0.98, "✅", 1.02, "💡", 1.04, "⭐")),
-    ("cppbuild", "memory",  ("❌", 0.90, "⚠️", 0.95, "✅", 1.05, "💡", 1.10, "⭐")),
-    ("cppbuild", "codeSize",("❌", 0.96, "⚠️", 0.98, "✅", 1.02, "💡", 1.04, "⭐")),
-    ("cppbuild", "elapsed", ("❌", 0.70, "⚠️", 0.85, "✅", 1.15, "💡", 1.30, "⭐")),
-)
-
-badgeLegend = [
-    ("❌", "Likely regression"),
-    ("⚠️", "Possible regression"),
-    ("✅", "Within acceptable range"),
-    ("💡", "Possible improvement"),
-    ("⭐", "Likely improvement"),
-]
-# fmt: on
-
-changedCycles = []
-table = []
-badgesToExplain = set()
-
-for ref, cmp in zip(sys.argv[1::2], sys.argv[2::2]):
-    with open(ref, "r", encoding="utf-8") as f:
-        ref_json = json.load(f)[0]
-    with open(cmp, "r", encoding="utf-8") as f:
-        cmp_json = json.load(f)
-    if table:
-        table.append(tabulate.SEPARATING_LINE)
-    runName = ref_json["runName"]
-
-    # Check simulated cycles match - it's ok to crash if this entry does not exist
-    for entry in cmp_json["execute"]["clocks"]["table"]:
-        case, _, _, (refCycles, _), (newCycles, _), _, _ = entry
-        refCycles = int(refCycles)
-        newCycles = int(newCycles)
-        if refCycles != newCycles:
-            changedCycles.append([runName, case, refCycles, newCycles])
-
-    # Check metrics
-    for step, metric, brackets in stepMetric:
-        if step not in cmp_json:
-            continue
-        data = cmp_json[step]
-        if metric not in data:
-            continue
-        data = data[metric]
-        minGain = float("inf")
-        maxGain = float("-inf")
-        meanGain = 1
-        count = 0
-        for _, _, _, (a, _), (b, _), g, _ in data["table"]:
-            # for wall clock and CPU time, ignore small values that just add noise
-            if metric == "elapsed" or metric == "cpu":
-                if a < 30 or b < 30:
-                    continue
-            minGain = min(minGain, g)
-            maxGain = max(maxGain, g)
-            meanGain *= g
-            count += 1
-        if count == 0:
-            continue
-        meanGain = meanGain**(1 / count)
-
-        status = brackets[0]
-        for limit, badge in zip(brackets[1::2], brackets[2::2]):
-            if meanGain >= limit:
-                status = badge
-        badgesToExplain.add(status)
-
-        table.append([
-            runName, step, ref_json["metrics"][metric]["header"], f"{meanGain:.2f}x  {status} ",
-            f"{minGain:.2f}x", f"{maxGain:.2f}x", f"{count}"
-        ])
-
-# Print changed cycles if any
-if changedCycles:
-    print("❌ simulated cycles changed (must be fixed):")
-    printTable(changedCycles,
-               headers=("Run", "Case", "Old Cycles", "New Cycles"),
-               colalign=("left", "left", "right", "right"),
-               disable_numparse=True)
-    print()
-
-# Print results
-printTable(
-    table,
-    headers=("Run", "Step", "Metric", "Improvement", "Min", "Max", "Samples"),
-    colalign=("left", "left", "left", "right", "right", "right", "right"),
-    disable_numparse=True,
-)
-
-# Explain badges
-print()
-for badge, legend in badgeLegend:
-    if badge in badgesToExplain:
-        print(f"  {badge} : {legend}")
-
-# Fail job if status changed
-sys.exit(0 if not changedCycles else 1)

ci/ci-script.bash

@@ -0,0 +1,193 @@
+#!/usr/bin/env bash
+# DESCRIPTION: Verilator: CI main job script
+#
+# Copyright 2020 by Geza Lore. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+#
+# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+################################################################################
+# This is the main script executed in the 'script' phase by all jobs. We use a
+# single script to keep the CI setting simple. We pass job parameters via
+# environment variables using 'env' keys.
+################################################################################
+
+set -e
+set -x
+
+fatal() {
+  echo "ERROR: $(basename "$0"): $1" >&2; exit 1;
+}
+
+if [ "$CI_M32" = "0" ]; then
+  unset CI_M32
+elif [ "$CI_M32" != "1" ]; then
+  fatal "\$CI_M32 must be '0' or '1'";
+fi
+
+if [ "$CI_OS_NAME" = "linux" ]; then
+  export MAKE=make
+  NPROC=$(nproc)
+elif [ "$CI_OS_NAME" = "osx" ]; then
+  export MAKE=make
+  NPROC=$(sysctl -n hw.logicalcpu)
+elif [ "$CI_OS_NAME" = "freebsd" ]; then
+  export MAKE=gmake
+  NPROC=$(sysctl -n hw.ncpu)
+else
+  fatal "Unknown os: '$CI_OS_NAME'"
+fi
+
+if [ "$CI_BUILD_STAGE_NAME" = "build" ]; then
+  ##############################################################################
+  # Build verilator
+
+  if [ "$COVERAGE" != 1 ]; then
+    autoconf
+    ./configure --enable-longtests --enable-ccwarn ${CI_M32:+--enable-m32}
+    ccache -z
+    "$MAKE" -j "$NPROC" -k
+    ccache -s
+    if [ "$CI_OS_NAME" = "osx" ]; then
+      file bin/verilator_bin
+      file bin/verilator_bin_dbg
+      md5 bin/verilator_bin
+      md5 bin/verilator_bin_dbg
+      stat bin/verilator_bin
+      stat bin/verilator_bin_dbg
+    fi
+  else
+    nodist/code_coverage --stages 0-2
+  fi
+elif [ "$CI_BUILD_STAGE_NAME" = "test" ]; then
+  ##############################################################################
+  # Run tests
+
+  export VERILATOR_TEST_NO_CONTRIBUTORS=1  # Separate workflow check
+
+  if [ "$CI_OS_NAME" = "osx" ]; then
+    export VERILATOR_TEST_NO_GDB=1  # Pain to get GDB to work on OS X
+    # TODO below may no longer be required as configure checks for -pg
+    export VERILATOR_TEST_NO_GPROF=1  # Apple Clang has no -pg
+    # export PATH="/Applications/gtkwave.app/Contents/Resources/bin:$PATH" # fst2vcd
+    file bin/verilator_bin
+    file bin/verilator_bin_dbg
+    md5 bin/verilator_bin
+    md5 bin/verilator_bin_dbg
+    stat bin/verilator_bin
+    stat bin/verilator_bin_dbg
+    # For some reason, the dbg exe is corrupted by this point ('file' reports
+    # it as data rather than a Mach-O). Unclear if this is an OS X issue or
+    # CI's. Remove the file and re-link...
+    rm bin/verilator_bin_dbg
+    "$MAKE" -j "$NPROC" -k
+  elif [ "$CI_OS_NAME" = "freebsd" ]; then
+    export VERILATOR_TEST_NO_GDB=1 # Disable for now, ideally should run
+    # TODO below may no longer be required as configure checks for -pg
+    export VERILATOR_TEST_NO_GPROF=1 # gprof is a bit different on FreeBSD, disable
+  fi
+
+  # Run sanitize on Ubuntu 20.04 only
+  [ "$CI_RUNS_ON" = 'ubuntu-20.04' ] && [ "$CI_M32" = "" ] && sanitize='--sanitize' || sanitize=''
+
+  # Run the specified test
+  ccache -z
+  case $TESTS in
+    dist-vlt-0)
+      "$MAKE" -C test_regress SCENARIOS="--dist --vlt $sanitize" DRIVER_HASHSET=--hashset=0/3
+      ;;
+    dist-vlt-1)
+      "$MAKE" -C test_regress SCENARIOS="--dist --vlt $sanitize" DRIVER_HASHSET=--hashset=1/3
+      ;;
+    dist-vlt-2)
+      "$MAKE" -C test_regress SCENARIOS="--dist --vlt $sanitize" DRIVER_HASHSET=--hashset=2/3
+      ;;
+    vltmt-0)
+      "$MAKE" -C test_regress SCENARIOS=--vltmt DRIVER_HASHSET=--hashset=0/2
+      ;;
+    vltmt-1)
+      "$MAKE" -C test_regress SCENARIOS=--vltmt DRIVER_HASHSET=--hashset=1/2
+      ;;
+    coverage-all)
+      nodist/code_coverage --stages 1-
+      ;;
+    coverage-dist)
+      nodist/code_coverage --stages 1- --scenarios=--dist
+      ;;
+    coverage-vlt-0)
+      nodist/code_coverage --stages 1- --scenarios=--vlt --hashset=0/10
+      ;;
+    coverage-vlt-1)
+      nodist/code_coverage --stages 1- --scenarios=--vlt --hashset=1/10
+      ;;
+    coverage-vlt-2)
+      nodist/code_coverage --stages 1- --scenarios=--vlt --hashset=2/10
+      ;;
+    coverage-vlt-3)
+      nodist/code_coverage --stages 1- --scenarios=--vlt --hashset=3/10
+      ;;
+    coverage-vlt-4)
+      nodist/code_coverage --stages 1- --scenarios=--vlt --hashset=4/10
+      ;;
+    coverage-vlt-5)
+      nodist/code_coverage --stages 1- --scenarios=--vlt --hashset=5/10
+      ;;
+    coverage-vlt-6)
+      nodist/code_coverage --stages 1- --scenarios=--vlt --hashset=6/10
+      ;;
+    coverage-vlt-7)
+      nodist/code_coverage --stages 1- --scenarios=--vlt --hashset=7/10
+      ;;
+    coverage-vlt-8)
+      nodist/code_coverage --stages 1- --scenarios=--vlt --hashset=8/10
+      ;;
+    coverage-vlt-9)
+      nodist/code_coverage --stages 1- --scenarios=--vlt --hashset=9/10
+      ;;
+    coverage-vltmt-0)
+      nodist/code_coverage --stages 1- --scenarios=--vltmt --hashset=0/10
+      ;;
+    coverage-vltmt-1)
+      nodist/code_coverage --stages 1- --scenarios=--vltmt --hashset=1/10
+      ;;
+    coverage-vltmt-2)
+      nodist/code_coverage --stages 1- --scenarios=--vltmt --hashset=2/10
+      ;;
+    coverage-vltmt-3)
+      nodist/code_coverage --stages 1- --scenarios=--vltmt --hashset=3/10
+      ;;
+    coverage-vltmt-4)
+      nodist/code_coverage --stages 1- --scenarios=--vltmt --hashset=4/10
+      ;;
+    coverage-vltmt-5)
+      nodist/code_coverage --stages 1- --scenarios=--vltmt --hashset=5/10
+      ;;
+    coverage-vltmt-6)
+      nodist/code_coverage --stages 1- --scenarios=--vltmt --hashset=6/10
+      ;;
+    coverage-vltmt-7)
+      nodist/code_coverage --stages 1- --scenarios=--vltmt --hashset=7/10
+      ;;
+    coverage-vltmt-8)
+      nodist/code_coverage --stages 1- --scenarios=--vltmt --hashset=8/10
+      ;;
+    coverage-vltmt-9)
+      nodist/code_coverage --stages 1- --scenarios=--vltmt --hashset=9/10
+      ;;
+    *)
+      fatal "Unknown test: $TESTS"
+      ;;
+  esac
+  ccache -s
+
+  # Upload coverage data
+  if [[ $TESTS == coverage-* ]]; then
+    bash <(cat ci/coverage-upload.sh) -f nodist/obj_dir/coverage/app_total.info
+  fi
+else
+  ##############################################################################
+  # Unknown build stage
+  fatal "Unknown build stage: '$CI_BUILD_STAGE_NAME'"
+fi

ci/ci-test.bash

@@ -1,169 +0,0 @@
-#!/usr/bin/env bash
-# DESCRIPTION: Verilator: CI test job script
-#
-# SPDX-FileCopyrightText: 2026 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-################################################################################
-# Executed in the 'test' stage.
-################################################################################
-
-# Destructive to the checkout (wipes most of it); never run locally
-if [ "$GITHUB_ACTIONS" != "true" ]; then
-  echo "ERROR: $(basename "$0") must only be run in GitHub Actions CI" >&2
-  exit 1
-fi
-
-set -e
-set -x
-
-source "$(dirname "$0")/ci-common.bash"
-
-################################################################################
-# Parse arguments
-
-OPT_RELOC=
-OPT_SUITE=
-while [ $# -gt 0 ]; do
-  case "$1" in
-    --reloc)
-      [ $# -ge 2 ] || fatal "--reloc requires an argument"
-      OPT_RELOC="$2"
-      shift
-      ;;
-    --suite)
-      [ $# -ge 2 ] || fatal "--suite requires an argument"
-      OPT_SUITE="$2"
-      shift
-      ;;
-    *) fatal "Unknown option: '$1'" ;;
-  esac
-  shift
-done
-
-[ -n "$OPT_SUITE" ] || fatal "--suite is required"
-
-################################################################################
-# Run tests
-
-export VERILATOR_TEST_NO_CONTRIBUTORS=1  # Separate workflow check
-export VERILATOR_TEST_NO_LINT_PY=1  # Separate workflow check
-
-if [ "$HOST_OS" = "macOS" ]; then
-  export VERILATOR_TEST_NO_GDB=1  # No working GDB on macOS
-fi
-
-TEST_REGRESS=test_regress
-if [ -n "$OPT_RELOC" ]; then
-  # Testing that the installation is relocatable.
-  "$MAKE" install
-  # Install prefix, as configured into the Makefile at build time
-  INSTALL_DIR=$(sed -n 's/^prefix = //p' Makefile)
-  mkdir -p "$OPT_RELOC"
-  mv "$INSTALL_DIR" "$OPT_RELOC/relocated-install"
-  export VERILATOR_ROOT="$OPT_RELOC/relocated-install/share/verilator"
-  TEST_REGRESS="$OPT_RELOC/test_regress"
-  mv test_regress "$TEST_REGRESS"
-  NODIST="$OPT_RELOC/nodist"
-  mv nodist "$NODIST"
-  # Delete everything else, but keep the CI infrastructure
-  find . -mindepth 1 -maxdepth 1 ! -name .github ! -name ci -exec rm -rf {} +
-  ls -la .
-fi
-
-# Run the specified suite
-ccache -z
-TEST_START=$SECONDS
-case $OPT_SUITE in
-  dist-vlt-0)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--dist --vlt --driver-clean" DRIVER_HASHSET=--hashset=0/4
-    ;;
-  dist-vlt-1)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--dist --vlt --driver-clean" DRIVER_HASHSET=--hashset=1/4
-    ;;
-  dist-vlt-2)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--dist --vlt --driver-clean" DRIVER_HASHSET=--hashset=2/4
-    ;;
-  dist-vlt-3)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--dist --vlt --driver-clean" DRIVER_HASHSET=--hashset=3/4
-    ;;
-  vltmt-0)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt --driver-clean" DRIVER_HASHSET=--hashset=0/3
-    ;;
-  vltmt-1)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt --driver-clean" DRIVER_HASHSET=--hashset=1/3
-    ;;
-  vltmt-2)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt --driver-clean" DRIVER_HASHSET=--hashset=2/3
-    ;;
-  coverage-dist)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--dist"
-    ;;
-  coverage-vlt-0)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vlt" DRIVER_HASHSET=--hashset=0/10
-    ;;
-  coverage-vlt-1)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vlt" DRIVER_HASHSET=--hashset=1/10
-    ;;
-  coverage-vlt-2)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vlt" DRIVER_HASHSET=--hashset=2/10
-    ;;
-  coverage-vlt-3)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vlt" DRIVER_HASHSET=--hashset=3/10
-    ;;
-  coverage-vlt-4)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vlt" DRIVER_HASHSET=--hashset=4/10
-    ;;
-  coverage-vlt-5)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vlt" DRIVER_HASHSET=--hashset=5/10
-    ;;
-  coverage-vlt-6)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vlt" DRIVER_HASHSET=--hashset=6/10
-    ;;
-  coverage-vlt-7)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vlt" DRIVER_HASHSET=--hashset=7/10
-    ;;
-  coverage-vlt-8)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vlt" DRIVER_HASHSET=--hashset=8/10
-    ;;
-  coverage-vlt-9)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vlt" DRIVER_HASHSET=--hashset=9/10
-    ;;
-  coverage-vltmt-0)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt" DRIVER_HASHSET=--hashset=0/10
-    ;;
-  coverage-vltmt-1)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt" DRIVER_HASHSET=--hashset=1/10
-    ;;
-  coverage-vltmt-2)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt" DRIVER_HASHSET=--hashset=2/10
-    ;;
-  coverage-vltmt-3)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt" DRIVER_HASHSET=--hashset=3/10
-    ;;
-  coverage-vltmt-4)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt" DRIVER_HASHSET=--hashset=4/10
-    ;;
-  coverage-vltmt-5)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt" DRIVER_HASHSET=--hashset=5/10
-    ;;
-  coverage-vltmt-6)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt" DRIVER_HASHSET=--hashset=6/10
-    ;;
-  coverage-vltmt-7)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt" DRIVER_HASHSET=--hashset=7/10
-    ;;
-  coverage-vltmt-8)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt" DRIVER_HASHSET=--hashset=8/10
-    ;;
-  coverage-vltmt-9)
-    "$MAKE" -C "$TEST_REGRESS" SCENARIOS="--vltmt" DRIVER_HASHSET=--hashset=9/10
-    ;;
-  *)
-    fatal "Unknown suite: $OPT_SUITE"
-    ;;
-esac
-ccache -svv
-ccache --evict-older-than "$((SECONDS - TEST_START + 60))s"
-ccache -svv
-uptime # To see load average

ci/ci-win-compile.ps1

@@ -1,38 +1,15 @@
-# DESCRIPTION: Verilator: CI Windows Power Shell - Compile Verilator
-#
-# SPDX-FileCopyrightText: 2024 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-################################################################################
-
-Set-PSDebug -Trace 1
-
-$NPROC = $env:NUMBER_OF_PROCESSORS
-
-# Absolute path for the win_flex_bison install; CMake reads this from the environment
-$env:WIN_FLEX_BISON = "$(Resolve-Path ..)/win_flex_bison"
-
-if (-Not (Test-Path $env:WIN_FLEX_BISON/win_bison.exe)) {
-    git clone --depth 1 https://github.com/lexxmark/winflexbison
-    cd winflexbison
-    mkdir build
-    cd build
-    cmake .. --install-prefix $env:WIN_FLEX_BISON
-    cmake --build . --config Release -j $NPROC
-    cmake --install . --prefix $env:WIN_FLEX_BISON
-    cd ../..
+if (-Not (Test-Path $PWD/../.ccache/win_bison.exe)) {
+	git clone --depth 1 https://github.com/lexxmark/winflexbison
+	cd winflexbison
+	mkdir build
+	cd build
+	cmake .. --install-prefix $PWD/../../../.ccache
+	cmake --build . --config Release -j 3
+	cmake --install . --prefix $PWD/../../../.ccache
+	cd ../..
 }
-
-# Enter the MSVC developer shell so cl/link are on PATH for the Ninja generator
-$VsPath = & "${env:ProgramFiles(x86)}/Microsoft Visual Studio/Installer/vswhere.exe" -latest -products * -property installationPath
-Import-Module "$VsPath/Common7/Tools/Microsoft.VisualStudio.DevShell.dll"
-Enter-VsDevShell -VsInstallPath $VsPath -SkipAutomaticLocation -DevCmdArguments "-arch=x64 -host_arch=x64"
-
 mkdir build
 cd build
-# Ninja saturates all cores; the MSBuild generator only parallelizes across
-# projects and Verilator is a single target, so it compiles serially. /Od skips
-# optimization: this job only checks that Verilator builds and can verilate an
-# example, so an optimized binary is not needed and the codegen time dominates.
-cmake .. -G Ninja -DCMAKE_BUILD_TYPE=Release --install-prefix $PWD/../install "-DCMAKE_CXX_FLAGS_RELEASE=/Od /DNDEBUG"
-cmake --build .
+cmake .. --install-prefix $PWD/../install
+cmake --build . --config Release -j 3
 cmake --install . --prefix $PWD/../install

ci/ci-win-test.ps1

@@ -1,26 +1,10 @@
-# DESCRIPTION: Verilator: CI Windows Power Shell - Verilate a test
-#
-# SPDX-FileCopyrightText: 2024 Wilson Snyder
-# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-################################################################################
-
-
-Set-PSDebug -Trace 1
-
-$NPROC = $env:NUMBER_OF_PROCESSORS
-
 cd install
 $Env:VERILATOR_ROOT=$PWD
 cd examples/cmake_tracing_c
 mkdir build
 cd build
-# /Od skips optimization; this only checks the example verilates and builds, so
-# an optimized binary is not needed (see ci-win-compile.ps1).
-cmake .. "-DCMAKE_CXX_FLAGS_RELEASE=/Od /DNDEBUG"
-cmake --build . --config Release -j $NPROC
-
-# TODO put this back in, see issue# 5163
-# Release/example.exe
-
+cmake ..
+cmake --build . --config Release -j 3
+Release/example.exe
 cd ..
 Remove-Item -path build -recurse

ci/docker/buildenv/Dockerfile

@@ -1,22 +1,12 @@
 # DESCRIPTION: Dockerfile for env to build and fully test Verilator
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2020 Stefan Wallentowitz
+# Copyright 2020 by Stefan Wallentowitz. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
-FROM ubuntu:24.04
-
-# Create the user
-RUN groupadd verilator \
-    && useradd -g verilator -m verilator -s /bin/bash \
-    && apt-get update \
-    && apt-get install --no-install-recommends -y sudo \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/* \
-    && echo verilator ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/verilator \
-    && chmod 0440 /etc/sudoers.d/verilator
+FROM ubuntu:22.04
 
 RUN apt-get update \
     && DEBIAN_FRONTEND=noninteractive \
@@ -36,16 +26,14 @@ RUN apt-get update \
                         help2man \
                         libfl2 \
                         libfl-dev \
-                        libclang-rt-18-dev \
-                        libjemalloc-dev \
+                        libgoogle-perftools-dev \
                         libsystemc \
                         libsystemc-dev \
                         numactl \
                         perl \
                         python3 \
-                        python3-distro \
                         wget \
-                        z3 \
+                        zlibc \
                         zlib1g \
                         zlib1g-dev \
     && apt-get clean \
@@ -53,21 +41,17 @@ RUN apt-get update \
 
 WORKDIR /tmp
 
-COPY wavetools.conf /tmp/wavetools.conf
-ARG WGET_EXTRA_ARGS=
-RUN . /tmp/wavetools.conf && \
-    wget -q ${WGET_EXTRA_ARGS} -O /tmp/wavetools.tar.gz \
-    "https://github.com/hudson-trading/wavetools/releases/download/${WAVETOOLS_VERSION}/wavetools-${WAVETOOLS_VERSION}-linux-x86_64.tar.gz" && \
-    tar -xzf /tmp/wavetools.tar.gz -C /tmp && \
-    cp -p /tmp/wavetools-${WAVETOOLS_VERSION}-linux-x86_64/wavediff /usr/local/bin/wavediff && \
-    rm -rf /tmp/wavetools.tar.gz /tmp/wavetools-* /tmp/wavetools.conf
+RUN cpan install -fi Parallel::Forker
+
+RUN git clone https://github.com/veripool/vcddiff.git && \
+    make -C vcddiff && \
+    cp -p vcddiff/vcddiff /usr/local/bin/vcddiff && \
+    rm -rf vcddiff
 
 COPY build.sh /tmp/build.sh
 
 ENV VERILATOR_AUTHOR_SITE=1
 
-USER verilator
-
 WORKDIR /work
 
 ENTRYPOINT [ "/tmp/build.sh" ]

ci/docker/buildenv/README.rst

@@ -1,8 +1,5 @@
-..
-   SPDX-FileCopyrightText: 2003-2026 Wilson Snyder
-   SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-.. _verilator build docker container:
+.. Copyright 2003-2023 by Wilson Snyder.
+.. SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
 Verilator Build Docker Container
 ================================
@@ -10,11 +7,11 @@ Verilator Build Docker Container
 This Verilator Build Docker Container is set up to compile and test a
 Verilator build. It uses the following parameters:
 
-- Source repository (default: https://github.com/verilator/verilator)
+-  Source repository (default: https://github.com/verilator/verilator)
 
-- Source revision (default: master)
+-  Source revision (default: master)
 
-- Compiler (GCC 13.3.0, clang 18.1.3, default: 13.3.0)
+-  Compiler (GCC 10.3.0, clang 10.0.0, default: 10.3.0)
 
 The container is published as ``verilator/verilator-buildenv`` on `docker
 hub
@@ -32,19 +29,18 @@ To also run tests:
 
    docker run -ti verilator/verilator-buildenv test
 
-To change the compiler use the `-e` switch to pass environment variables:
+To change the compiler:
 
 ::
 
-   docker run -ti -e CXX=clang++-18 verilator/verilator-buildenv test
+   docker run -ti -e CC=clang-10 -e CXX=clang++-10 verilator/verilator-buildenv test
 
-The tests, that involve numactl are not working due to security
-restrictions. To run those too, add the CAP_SYS_NICE capability during the
-start of the container:
+The tests that involve gdb are not working due to security restrictions.
+To run those too:
 
 ::
 
-   docker run -ti --cap-add=CAP_SYS_NICE verilator/verilator-buildenv test
+   docker run -ti -e CC=clang-10 -e CXX=clang++-10 --cap-add=SYS_PTRACE --security-opt seccomp=unconfined verilator/verilator-buildenv test
 
 Rather then building using a remote git repository you may prefer to use a
 working copy on the local filesystem. Mount the local working copy path as
@@ -54,7 +50,7 @@ top of a repository:
 
 ::
 
-   docker run -ti -v ${PWD}:/tmp/repo -e REPO=/tmp/repo -e REV=`git rev-parse --short HEAD` verilator/verilator-buildenv test
+   docker run -ti -v ${PWD}:/tmp/repo -e REPO=/tmp/repo -e REV=`git rev-parse --short HEAD` --cap-add=SYS_PTRACE --security-opt seccomp=unconfined verilator/verilator-buildenv test
 
 
 Rebuilding

ci/docker/buildenv/build.sh

@@ -1,14 +1,15 @@
 #!/bin/bash -e
 # DESCRIPTION: Build Verilator (inside container)
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2020 Stefan Wallentowitz
+# Copyright 2020 by Stefan Wallentowitz. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
 : "${REPO:=https://github.com/verilator/verilator}"
 : "${REV:=master}"
+: "${CC:=gcc}"
 : "${CXX:=g++}"
 
 SRCS=$PWD/verilator

ci/docker/buildenv/wavetools.conf

@@ -1 +0,0 @@
-WAVETOOLS_VERSION=v0.1.2

ci/docker/run/Dockerfile

@@ -1,12 +1,12 @@
 # DESCRIPTION: Dockerfile for image to run Verilator inside
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2020 Stefan Wallentowitz
+# Copyright 2020 by Stefan Wallentowitz. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
-FROM ubuntu:24.04
+FROM ubuntu:22.04
 
 RUN apt-get update \
     && DEBIAN_FRONTEND=noninteractive \
@@ -22,7 +22,7 @@ RUN apt-get update \
                         help2man \
                         libfl2 \
                         libfl-dev \
-                        libjemalloc-dev \
+                        libgoogle-perftools-dev \
                         numactl \
                         perl \
                         perl-doc \
@@ -48,8 +48,7 @@ RUN git clone "${REPO}" verilator && \
     make && \
     make install && \
     cd .. && \
-    rm -r verilator && \
-    ccache -C
+    rm -r verilator
 
 COPY verilator-wrap.sh /usr/local/bin/verilator-wrap.sh
 

ci/docker/run/README.rst

@@ -1,6 +1,5 @@
-..
-   SPDX-FileCopyrightText: 2003-2026 Wilson Snyder
-   SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+.. Copyright 2003-2023 by Wilson Snyder.
+.. SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
 Verilator Executable Docker Container
 =====================================
@@ -12,12 +11,11 @@ easily as a docker image, e.g.:
 
    docker run -ti verilator/verilator:latest --version
 
-This will pull the container from `Docker Hub
-<https://hub.docker.com/r/verilator/verilator>`_, run the latest Verilator
-and print Verilator's version.
+This will install the container, run the latest Verilator and print
+Verilator's version.
 
-Containers are automatically built and pushed to docker hub for all
-released versions, so you may easily compare results across versions, e.g.:
+Containers are automatically built for all released versions, so you may
+easily compare results across versions, e.g.:
 
 ::
 
@@ -39,7 +37,7 @@ or
    ./verilator-docker 4.030 --cc test.v
 
 If you prefer not to use ``verilator-docker`` you must give the container
-access to your files as a volume with appropriate user rights. For example
+access to your files as a volume with appropriate user rights.  For example
 to Verilate test.v:
 
 ::
@@ -69,9 +67,9 @@ Internals
 The Dockerfile builds Verilator and removes the tree when completed to
 reduce the image size. The entrypoint is a wrapper script
 (``verilator-wrap.sh``). That script 1. calls Verilator, and 2. copies the
-Verilated runtime files to the ``obj_dir`` or the ``-Mdir`` respectively.
-This allows the user to have the files to they may later build the C++
-output with the matching runtime files. The wrapper also patches the
-Verilated Makefile accordingly.
+Verilated runtime files to the ``obj_dir`` or the ``-Mdir``
+respectively. This allows the user to have the files to they may later
+build the C++ output with the matching runtime files. The wrapper also
+patches the Verilated Makefile accordingly.
 
 A hook is also defined and run by Docker Hub via automated builds.

ci/docker/run/hooks/build

@@ -1,10 +1,10 @@
 #!/bin/bash
 # DESCRIPTION: Docker hub hook to pass SOURCE_COMMIT
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2020 Stefan Wallentowitz
+# Copyright 2020 by Stefan Wallentowitz. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
 docker build --build-arg SOURCE_COMMIT=${SOURCE_COMMIT} -f $DOCKERFILE_PATH -t $IMAGE_NAME .

ci/docker/run/hooks/post_push

@@ -1,13 +1,13 @@
 #!/bin/bash
 # DESCRIPTION: Docker hub hook to tag the latest release (stable)
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2020 Stefan Wallentowitz
+# Copyright 2020 by Stefan Wallentowitz. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
 if [ "$SOURCE_BRANCH"="stable" ]; then
-  docker tag $IMAGE_NAME $DOCKER_REPO:latest
-  docker push $DOCKER_REPO:latest
+    docker tag $IMAGE_NAME $DOCKER_REPO:latest
+    docker push $DOCKER_REPO:latest
 fi

ci/docker/run/verilator-docker

@@ -1,10 +1,10 @@
 #!/bin/bash
 # DESCRIPTION: Wrap a verilator call to run a docker container
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2020 Stefan Wallentowitz
+# Copyright 2020 by Stefan Wallentowitz. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
 docker pull verilator/verilator:$1 >/dev/null

ci/docker/run/verilator-wrap.sh

@@ -2,30 +2,30 @@
 # DESCRIPTION: Wrap a Verilator call and copy vlt includes
 #              (inside docker container)
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2020 Stefan Wallentowitz
+# Copyright 2020 by Stefan Wallentowitz. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
 perl /usr/local/bin/verilator "$@"
 status=$?
 if [ $status -ne 0 ]; then
-  exit $status
+    exit $status
 fi
 
 # Check if user set an obj_dir
 obj_dir=$(echo " $@" | grep -oP '\s--Mdir\s*\K\S+')
 if [ "$obj_dir" == "" ]; then
-  obj_dir="obj_dir"
+    obj_dir="obj_dir"
 fi
 
 # If the run was successful: Copy required files to allow build without this container
 if [ -e ${obj_dir} ]; then
-  # Copy files required for the build
-  mkdir -p ${obj_dir}/vlt
-  cp -r /usr/local/share/verilator/bin ${obj_dir}/vlt
-  cp -r /usr/local/share/verilator/include ${obj_dir}/vlt
-  # Point Makefile to that folder
-  sed -i 's/VERILATOR_ROOT = \/usr\/local\/share\/verilator/VERILATOR_ROOT = vlt/g' ${obj_dir}/*.mk
+    # Copy files required for the build
+    mkdir -p ${obj_dir}/vlt
+    cp -r /usr/local/share/verilator/bin ${obj_dir}/vlt
+    cp -r /usr/local/share/verilator/include ${obj_dir}/vlt
+    # Point Makefile to that folder
+    sed -i 's/VERILATOR_ROOT = \/usr\/local\/share\/verilator/VERILATOR_ROOT = vlt/g' ${obj_dir}/*.mk
 fi

codecov.yml

@@ -0,0 +1,38 @@
+# DESCRIPTION: codecov.io config
+#
+# Copyright 2020-2023 by Wilson Snyder. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+####################
+# Validate:
+#  curl --data-binary @codecov.yml https://codecov.io/validate
+
+codecov:
+  require_ci_to_pass: no
+
+coverage:
+  precision: 2
+  round: down
+  range: "50...100"
+  ignore:
+    - "ci"
+    - "docs"
+    - "examples"
+    - "include/gtkwave"
+    - "include/vltstd"
+    - "test_regress"
+
+parsers:
+  gcov:
+    branch_detection:
+      conditional: yes
+      loop: yes
+      method: no
+      macro: no
+
+comment:
+  layout: "reach,diff,flags,tree"
+  behavior: default
+  require_changes: yes

configure.ac

@@ -1,18 +1,16 @@
 # DESCRIPTION: Process this file with autoconf to produce a configure script.
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2003-2026 Wilson Snyder
+# Copyright 2003-2023 by Wilson Snyder. Verilator is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU Lesser
+# General Public License Version 3 or the Perl Artistic License Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
-# When releasing, also update header of Changes file, and CMakeLists.txt,
+# When releasing, also update header of Changes file, and CmakeLists.txt,
 # and commit using "devel release" or "Version bump" message
-# Then 'make distclean' 'autoconf' './configure' 'make' 'make test'
 # Then 'make maintainer-dist'
 #AC_INIT([Verilator],[#.### YYYY-MM-DD])
 #AC_INIT([Verilator],[#.### devel])
-AC_INIT([Verilator],[5.052 2026-09-05],
+AC_INIT([Verilator],[5.016 2023-09-16],
         [https://verilator.org],
         [verilator],[https://verilator.org])
 
@@ -26,13 +24,6 @@ AC_SUBST(PACKAGE_VERSION_NUMBER)
 AC_DEFINE_UNQUOTED([PACKAGE_VERSION_NUMBER_STRING],["$PACKAGE_VERSION_NUMBER"],[Package version as a number])
 VERILATOR_VERSION_INTEGER=`AS_ECHO("$PACKAGE_VERSION") | [sed 's/\([0-9]\)\.\([0-9][0-9][0-9]\) .*/\1\2000/g']`
 AC_SUBST(VERILATOR_VERSION_INTEGER)
-AC_DEFINE_UNQUOTED([PACKAGE_VERSION_STRING_CHAR],
-        [static const char* const PACKAGE_STRING_UNUSED = "$PACKAGE_STRING";],
-        [Package version as a number])
-AC_SUBST(PACKAGE_VERSION_STRING_CHAR)
-
-######################################################################
-## Arguments/flag checking
 
 # Ignore automake flags passed by Ubuntu builds
 AC_ARG_ENABLE([dependency-tracking],
@@ -58,22 +49,6 @@ AC_ARG_ENABLE([partial-static],
                CFG_ENABLE_PARTIAL_STATIC=yes)
 AC_MSG_RESULT($CFG_ENABLE_PARTIAL_STATIC)
 
-# Flag to enable compiling with AddressSanitizer
-AC_MSG_CHECKING(whether to use AddressSanitizer)
-AC_ARG_ENABLE([dev-asan],
-              [AS_HELP_STRING([--enable-dev-asan],
-                              [Enable compiling Verilator with ASAN
-                               AddressSanitizer for memory error detection.
-                               This disables tcmalloc and jemalloc.  Does not
-                               affect Verilated models using ASAN.])],
-              [case "${enableval}" in
-                yes) CFG_WITH_DEV_ASAN=yes ;;
-                no)  CFG_WITH_DEV_ASAN=no ;;
-                *)   AC_MSG_ERROR([bad value '${enableval}' for --enable-dev-asan]) ;;
-               esac],
-               CFG_WITH_DEV_ASAN=no)
-AC_MSG_RESULT($CFG_WITH_DEV_ASAN)
-
 # Flag to enable linking Verilator with tcmalloc if available
 AC_MSG_CHECKING(whether to use tcmalloc)
 AC_ARG_ENABLE([tcmalloc],
@@ -86,63 +61,35 @@ AC_ARG_ENABLE([tcmalloc],
                 *)   AC_MSG_ERROR([bad value '${enableval}' for --enable-tcmalloc]) ;;
                esac],
               [CFG_WITH_TCMALLOC=check;])
-if test "$CFG_WITH_DEV_ASAN" = "yes"; then
-  CFG_WITH_TCMALLOC=no
-  AC_MSG_RESULT("disabled by --enable-dev-asan")
-else
-  AC_MSG_RESULT($CFG_WITH_TCMALLOC)
-fi
+AC_MSG_RESULT($CFG_WITH_TCMALLOC)
 
-# Flag to enable linking Verilator with jemalloc if available
-AC_MSG_CHECKING(whether to use jemalloc)
-AC_ARG_ENABLE([jemalloc],
-              [AS_HELP_STRING([--enable-jemalloc],
-                              [Use libjemalloc for faster dynamic memory
-                               management in Verilator binary. Preferred over
-                               tcmalloc when both are available
-                               @<:@default=check@:>@])],
+# Flag to enable -m32 build
+AC_MSG_CHECKING(whether to use -m32)
+AC_ARG_ENABLE([m32],
+              [AS_HELP_STRING([--enable-m32],
+                              [Use -m32 for all compilation and link,
+                               including Verilator and generated models.])],
               [case "${enableval}" in
-                yes) CFG_WITH_JEMALLOC=yes ;;
-                no)  CFG_WITH_JEMALLOC=no ;;
-                *)   AC_MSG_ERROR([bad value '${enableval}' for --enable-jemalloc]) ;;
+                yes) CFG_ENABLE_M32=yes ;;
+                no)  CFG_ENABLE_M32=no ;;
+                *)   AC_MSG_ERROR([bad value '${enableval}' for --enable-m32]) ;;
                esac],
-              [CFG_WITH_JEMALLOC=check;])
-if test "$CFG_WITH_DEV_ASAN" = "yes"; then
-  CFG_WITH_JEMALLOC=no
-  AC_MSG_RESULT("disabled by --enable-dev-asan")
-else
-  AC_MSG_RESULT($CFG_WITH_JEMALLOC)
-fi
+               CFG_ENABLE_M32=no)
+AC_MSG_RESULT($CFG_ENABLE_M32)
 
-# Flag to enable code coverage build with gcov
-AC_MSG_CHECKING(whether to build for gcov code coverage collection)
-AC_ARG_ENABLE([dev-gcov],
-              [AS_HELP_STRING([--enable-dev-gcov],
-                              [Build Verilator for code coverage collection with gcov.
+# Flag to enable coverage build
+AC_MSG_CHECKING(whether to build for coverage collection)
+AC_ARG_ENABLE([coverage],
+              [AS_HELP_STRING([--enable-coverage],
+                              [Build Verilator for code coverage collection.
                                For developers only.])],
               [case "${enableval}" in
-                yes) CFG_WITH_DEV_GCOV=yes ;;
-                no)  CFG_WITH_DEV_GCOV=no ;;
-                *)   AC_MSG_ERROR([bad value '${enableval}' for --enable-dev-gcov]) ;;
+                yes) CFG_ENABLE_COVERAGE=yes ;;
+                no)  CFG_ENABLE_COVERAGE=no ;;
+                *)   AC_MSG_ERROR([bad value '${enableval}' for --enable-coverage]) ;;
                esac],
-               CFG_WITH_DEV_GCOV=no)
-AC_SUBST(CFG_WITH_DEV_GCOV)
-AC_MSG_RESULT($CFG_WITH_DEV_GCOV)
-
-# Flag to reduce the debug info in the debug executable to minimize its size
-AC_MSG_CHECKING(whether to reduce debug info in the debug executable)
-AC_ARG_ENABLE([light-debug],
-              [AS_HELP_STRING([--enable-light-debug],
-                              [Reduce the amount of debug information in the debug
-                               Verilator executable to minimize its size. Enable
-                               slight optimization. Enough for backtraces only.])],
-              [case "${enableval}" in
-                yes) CFG_WITH_LIGHT_DEBUG=yes ;;
-                no)  CFG_WITH_LIGHT_DEBUG=no ;;
-                *)   AC_MSG_ERROR([bad value '${enableval}' for --enable-light-debug]) ;;
-               esac],
-               CFG_WITH_LIGHT_DEBUG=no)
-AC_MSG_RESULT($CFG_WITH_LIGHT_DEBUG)
+               CFG_ENABLE_COVERAGE=no)
+AC_MSG_RESULT($CFG_ENABLE_COVERAGE)
 
 # Special Substitutions - CFG_WITH_DEFENV
 AC_MSG_CHECKING(whether to use hardcoded paths)
@@ -197,33 +144,6 @@ AC_ARG_ENABLE([longtests],
 AC_SUBST(CFG_WITH_LONGTESTS)
 AC_MSG_RESULT($CFG_WITH_LONGTESTS)
 
-AC_CHECK_PROG(HAVE_Z3,z3,yes)
-AC_CHECK_PROG(HAVE_CVC5,cvc5,yes)
-AC_CHECK_PROG(HAVE_CVC4,cvc4,yes)
-
-# Special Substitutions - CFG_WITH_SOLVER
-AC_MSG_CHECKING(for SMT solver)
-AC_ARG_WITH([solver],
-              [AS_HELP_STRING([--with-solver='z3 --in'],
-                              [set default SMT solver for constrained randomization])],
-              [CFG_WITH_SOLVER="${withval}"],
-              [CFG_WITH_SOLVER=no
-               if test "x$HAVE_Z3" = "xyes"; then
-                CFG_WITH_SOLVER="z3 --in"
-               elif test "x$HAVE_CVC5" = "xyes"; then
-                CFG_WITH_SOLVER="cvc5 --incremental"
-               elif test "x$HAVE_CVC4" = "xyes"; then
-                CFG_WITH_SOLVER="cvc4 --lang=smt2 --incremental"
-               fi]
-              )
-AC_SUBST(CFG_WITH_SOLVER)
-AC_MSG_RESULT($CFG_WITH_SOLVER)
-
-######################################################################
-## Compiler checks
-
-AC_MSG_RESULT([compiler CXX inbound is set to... $CXX])
-
 # Compiler flags (ensure they are not empty to avoid configure defaults)
 CFLAGS="$CFLAGS "
 CPPFLAGS="$CPPFLAGS "
@@ -236,10 +156,8 @@ AC_PROG_CXX
 AC_PROG_INSTALL
 
 AC_LANG_PUSH(C++)
-CFG_CXX_VERSION=`$CXX --version | head -1`
-AC_MSG_RESULT([compiler version... $CXX --version = $CFG_CXX_VERSION])
-AC_SUBST(CFG_CXX_VERSION)
-
+cxx_version=$($CXX --version | head -1)
+AC_MSG_RESULT([compiler is $CXX --version = $cxx_version])
 AC_MSG_CHECKING([that C++ compiler can compile simple program])
 AC_RUN_IFELSE(
    [AC_LANG_SOURCE([int main() { return 0; }])],
@@ -252,26 +170,24 @@ if test "x$AR" = "x" ; then
    AC_MSG_ERROR([Cannot find "ar" in your PATH, please install it])
 fi
 
-AC_CHECK_PROG(PERL,perl,perl)
+AC_PATH_PROG(PERL,perl)
 if test "x$PERL" = "x" ; then
    AC_MSG_ERROR([Cannot find "perl" in your PATH, please install it])
 fi
 
-AC_CHECK_PROG(PYTHON3,python3,python3)
+AC_PATH_PROG(PYTHON3,python3)
 if test "x$PYTHON3" = "x" ; then
    AC_MSG_ERROR([Cannot find "python3" in your PATH, please install it])
 fi
-python3_version=$($PYTHON3 --version | head -1)
-AC_MSG_RESULT([$PYTHON3 --version = $python3_version])
 
-AC_CHECK_PROG(LEX,flex,flex)
+AC_PATH_PROG(LEX,flex)
 if test "x$LEX" = "x" ; then
    AC_MSG_ERROR([Cannot find "flex" in your PATH, please install it])
 fi
 flex_version=$($LEX --version | head -1)
 AC_MSG_RESULT([$LEX --version = $flex_version])
 
-AC_CHECK_PROG(YACC,bison,bison)
+AC_PATH_PROG(YACC,bison)
 if test "x$YACC" = "x" ; then
    AC_MSG_ERROR([Cannot find "bison" in your PATH, please install it])
 fi
@@ -360,43 +276,6 @@ AC_DEFUN([_MY_CXX_CHECK_OPT],
     _MY_CXX_CHECK_IFELSE($2, $1="$$1 $2")
    ])
 
-AC_DEFUN([_MY_CXX_CHECK_CORO_SET],
-   [# _MY_CXX_CHECK_CORO_SET(variable,option)
-    # Check if compiler supports coroutines with specific option. If it does,
-    # set variable to option, only if not previously set.
-    # Define HAVE_COROUTINES if supported.
-    if test "$$1" = ""; then
-      if test "$2" != ""; then
-        _my_msg_opt=" with $2"
-      else
-        _my_msg_opt=""
-      fi
-      AC_MSG_CHECKING([whether coroutines are supported by $CXX$_my_msg_opt])
-      ACO_SAVE_CXXFLAGS="$CXXFLAGS"
-      CXXFLAGS="$CXXFLAGS $2"
-      AC_LINK_IFELSE(
-         [AC_LANG_PROGRAM([
-            #if defined(__clang__) && !defined(__cpp_impl_coroutine)
-            #define __cpp_impl_coroutine 1
-            #endif
-            #include <coroutine>
-          ],[[std::coroutine_handle<> h;]])],
-         [_my_result=yes],
-         [AC_LINK_IFELSE(
-             [AC_LANG_PROGRAM(
-                [#include <experimental/coroutine>],
-                [[std::experimental::coroutine_handle<> h;]])],
-             [_my_result=yes],
-             [_my_result=no])])
-      AC_MSG_RESULT($_my_result)
-      CXXFLAGS="$ACO_SAVE_CXXFLAGS"
-      if test "$_my_result" = "yes" ; then
-        $1="$2"
-        AC_DEFINE([HAVE_COROUTINES],[1],[Defined if coroutines are supported by $CXX])
-      fi
-    fi
-  ])
-
 AC_DEFUN([_MY_LDLIBS_CHECK_FLAG],
    [# _MY_LDLIBS_CHECK_FLAG(flag) -- Check if linker supports specific options
     # Set $_my_result appropriately
@@ -436,18 +315,16 @@ AC_DEFUN([_MY_LDLIBS_CHECK_OPT],
     _MY_LDLIBS_CHECK_IFELSE($2, $1="$$1 $2")
    ])
 
-AC_DEFUN([_MY_LDLIBS_CHECK_SET],
-   [# _MY_LDLIBS_CHECK_SET(variable, flag) -- Check if linker supports specific
-    # options. If it does, set variable to flag, only if not previously set
-    # (so the first supported flag wins and the rest are not tested).
-    if test "$$1" = ""; then
-       _MY_LDLIBS_CHECK_IFELSE($2, $1="$2")
-    fi
-   ])
+# When using -m32. Check this first as later checks may fail with the -m32 flag.
+if test "$CFG_ENABLE_M32" = "yes"; then
+  _MY_CXX_CHECK_IFELSE(
+    -m32,
+    [CXX="$CXX -m32"],
+    [AC_MSG_ERROR([--enable-m32 was given but compiler does not support -m32])])
+fi
 
-# Add the coverage flags early as they influence later checks.
-if test "$CFG_WITH_DEV_GCOV" = "yes"; then
-  CFG_GCOV_CXX="$CXX"
+# Similarly, add the coverage flags early as they influence later checks.
+if test "$CFG_ENABLE_COVERAGE" = "yes"; then
   _MY_CXX_CHECK_OPT(CXX,--coverage)
   # Otherwise inline may not show as uncovered
   #  If we use this then e.g. verilated.h functions properly show up
@@ -459,43 +336,11 @@ if test "$CFG_WITH_DEV_GCOV" = "yes"; then
   #  _MY_CXX_CHECK_OPT(CXX,-fkeep-inline-functions)
   # Otherwise static may not show as uncovered
   _MY_CXX_CHECK_OPT(CXX,-fkeep-static-functions)
-  # Similarly for inline functions. - This is too slow. See Makefile_obj instead.
-  #_MY_CXX_CHECK_OPT(CXX,-fkeep-inline-functions)
-  # Make sure profiling is thread-safe
-  _MY_CXX_CHECK_OPT(CXX,-fprofile-update=atomic)
-  # Ensure data files can be written from parallel runs
-  _MY_CXX_CHECK_OPT(CXX,-fprofile-reproducible=parallel-runs)
-  # Save source files as absolute paths in gcno files
-  _MY_CXX_CHECK_OPT(CXX,-fprofile-abs-path)
-  # Define so compiled code can know
+  # Exceptions can pollute the branch coverage data
+  _MY_CXX_CHECK_OPT(CXX,-fno-exceptions)
+  # Define-out some impossible stuff
   _MY_CXX_CHECK_OPT(CXX,-DVL_GCOV)
-  AC_DEFINE([HAVE_DEV_GCOV],[1],[Defined if compiled with code coverage collection for gcov])
-  if test "x$GCOV" = "x"; then GCOV=gcov; fi
-  AC_MSG_CHECKING([whether $GCOV reads coverage data from $CFG_GCOV_CXX])
-  CFG_GCOV_DIR=conftest.gcov.dir
-  rm -rf $CFG_GCOV_DIR
-  AS_MKDIR_P([$CFG_GCOV_DIR])
-  echo 'int main() { return 0; }' > $CFG_GCOV_DIR/conftest_gcov.cpp
-  CFG_GCOV_RES=no
-  if (cd $CFG_GCOV_DIR \
-      && $CFG_GCOV_CXX --coverage -o conftest_gcov conftest_gcov.cpp \
-      && ./conftest_gcov) >/dev/null 2>&1; then
-    (cd $CFG_GCOV_DIR && $GCOV conftest_gcov.gcda) >/dev/null 2>&1
-    if test -s $CFG_GCOV_DIR/conftest_gcov.cpp.gcov; then CFG_GCOV_RES=yes; fi
-  else
-    CFG_GCOV_RES=untested
-  fi
-  rm -rf $CFG_GCOV_DIR
-  AC_MSG_RESULT($CFG_GCOV_RES)
-  if test "$CFG_GCOV_RES" = "no"; then
-    AC_MSG_ERROR(['$GCOV' cannot read coverage data written by '$CFG_GCOV_CXX'.
-  Coverage collection would silently produce no data.
-  Pass a matching tool, e.g. GCOV=gcov-<version>
-  or configure without --enable-dev-gcov.])
-  fi
 fi
-AC_SUBST(GCOV)
-AC_SUBST(HAVE_DEV_GCOV)
 
 # Compiler flags to enable profiling
 _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_PROFILE,-pg)
@@ -505,7 +350,7 @@ AC_SUBST(CFG_CXXFLAGS_PROFILE)
 # Macros work such that first option that passes is the one we take
 # Currently enable c++17/c++14 due to packaged SystemC dependency
 # c++17 is the newest that Verilator is regularly tested to support
-# c++14 is the oldest that Verilator supports
+# c++11 is the oldest that Verilator supports
 # gnu is required for Cygwin to compile verilated.h successfully
 #_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=gnu++20)
 #_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=c++20)
@@ -513,6 +358,8 @@ _MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=gnu++17)
 _MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=c++17)
 _MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=gnu++14)
 _MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=c++14)
+_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=gnu++11)
+_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=c++11)
 AC_SUBST(CFG_CXXFLAGS_STD_NEWEST)
 
 # Flags for compiling Verilator internals including parser, and Verilated files
@@ -524,35 +371,40 @@ _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_WEXTRA,-Wthread-safety)
 AC_SUBST(CFG_CXXFLAGS_WEXTRA)
 
 # Flags for coroutine support for dynamic scheduling
-_MY_CXX_CHECK_CORO_SET(CFG_CXXFLAGS_COROUTINES, "")
-_MY_CXX_CHECK_CORO_SET(CFG_CXXFLAGS_COROUTINES,-fcoroutines-ts)
-_MY_CXX_CHECK_CORO_SET(CFG_CXXFLAGS_COROUTINES,-fcoroutines)
-_MY_CXX_CHECK_CORO_SET(CFG_CXXFLAGS_COROUTINES,-fcoroutines-ts -Wno-deprecated-experimental-coroutine)
-_MY_CXX_CHECK_CORO_SET(CFG_CXXFLAGS_COROUTINES,-std=gnu++20)
+_MY_CXX_CHECK_IFELSE(
+  -fcoroutines-ts,
+  [CFG_CXXFLAGS_COROUTINES="-fcoroutines-ts"],
+  [CFG_CXXFLAGS_COROUTINES="-fcoroutines"])
 AC_SUBST(CFG_CXXFLAGS_COROUTINES)
+
+# HAVE_COROUTINES
+# Check if coroutines are supported at all
+AC_MSG_CHECKING([whether coroutines are supported by $CXX])
+ACO_SAVE_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS="$CXXFLAGS $CFG_CXXFLAGS_COROUTINES"
+AC_LINK_IFELSE(
+    [AC_LANG_PROGRAM([
+#ifdef __clang__
+#define __cpp_impl_coroutine 1
+#endif
+#include <coroutine>
+    ],[[]])],
+    [_my_result=yes
+     AC_DEFINE([HAVE_COROUTINES],[1],[Defined if coroutines are supported by $CXX])],
+    [AC_LINK_IFELSE(
+        [AC_LANG_PROGRAM([#include <experimental/coroutine>],[[]])],
+        [_my_result=yes
+         AC_DEFINE([HAVE_COROUTINES],[1],[Defined if coroutines are supported by $CXX])],
+        [_my_result=no])])
+AC_MSG_RESULT($_my_result)
+CXXFLAGS="$ACO_SAVE_CXXFLAGS"
 AC_SUBST(HAVE_COROUTINES)
 
-# Check if the C++ compiler supports ThreadSanitizer
-_MY_CXX_CHECK_IFELSE(-fsanitize=thread,
-  [AC_DEFINE([HAVE_TSAN],[1],[Defined if ThreadSanitizer is supported by $CXX])])
-AC_SUBST(HAVE_TSAN)
-
 # Flags for compiling Verilator internals including parser always
-if test "$CFG_WITH_DEV_ASAN" = "yes"; then
-  _MY_CXX_CHECK_IFELSE(-fsanitize=address -DVL_ASAN,
-    [CFG_CXXFLAGS_SRC="$CFG_CXXFLAGS_SRC -fsanitize=address -DVL_ASAN"
-     CFG_LDFLAGS_SRC="$CFG_LDFLAGS_SRC -fsanitize=address"
-     AC_DEFINE([HAVE_DEV_ASAN],[1],[Defined if built with AddresSanitizer])]
-  )
-fi
-AC_SUBST(HAVE_DEV_ASAN)
 _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-Qunused-arguments)
-_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-Wno-shadow)
-_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-Wno-unnecessary-virtual-specifier)
-_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-Wno-unused-parameter)
-_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-Xclang -fno-pch-timestamp)
 _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-faligned-new)
-_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-fno-exceptions)
+_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-Wno-unused-parameter)
+_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-Wno-shadow)
 AC_SUBST(CFG_CXXFLAGS_SRC)
 
 # Flags for compiling Verilator parser always (in addition to above CFG_CXXFLAGS_SRC)
@@ -563,34 +415,16 @@ _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_PARSER,-Wno-unused)
 AC_SUBST(CFG_CXXFLAGS_PARSER)
 
 # Flags for compiling the debug version of Verilator (in addition to above CFG_CXXFLAGS_SRC)
-if test "$CFG_WITH_LIGHT_DEBUG" = "yes"; then
-  # Slight optimization and minimal compressed debug info. This is enough for
-  # --gdb/--gdbbt backtraces, but omits the bulk of the debug info, which
-  # significantly reduces object file sizes. For CI or release builds.
-  if test "$CFG_WITH_DEV_GCOV" = "no"; then # Do not optimize for the coverage build
-    _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_DBG,-Og)
-  fi
-  _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_DBG,-ggdb1)
-  _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_DBG,-fdebug-info-for-profiling) # For fully-qualified names with clang
-  _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_DBG,-gz)
-else
-  # Full debug: no optimization, full debug info, for development.
-  _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_DBG,-O0)
-  _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_DBG,-ggdb)
+if test "$CFG_ENABLE_COVERAGE" = "no"; then # Do not optimize for the coverage build
+_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_DEBUG,-Og)
 fi
-AC_SUBST(CFG_CXXFLAGS_DBG)
+_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_DEBUG,-ggdb)
+_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_DEBUG,-gz)
+AC_SUBST(CFG_CXXFLAGS_DEBUG)
 
 # Flags for linking the debug version of Verilator (in addition to above CFG_LDFLAGS_SRC)
-if test "$CFG_WITH_LIGHT_DEBUG" = "yes"; then
-  _MY_LDLIBS_CHECK_OPT(CFG_LDFLAGS_DBG,-gz)
-fi
-AC_SUBST(CFG_LDFLAGS_DBG)
-
-# Flags for compiling the optimized version of Verilator (in addition to above CFG_CXXFLAGS_SRC)
-if test "$CFG_WITH_DEV_GCOV" = "no"; then # Do not optimize for the coverage build
-_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_OPT,-O3)
-fi
-AC_SUBST(CFG_CXXFLAGS_OPT)
+_MY_LDLIBS_CHECK_OPT(CFG_LDFLAGS_DEBUG,-gz)
+AC_SUBST(CFG_LDFLAGS_DEBUG)
 
 # Flags for Verilated makefile
 # For example, -Wno-div-by-zero isn't in 4.1.2
@@ -605,27 +439,17 @@ CFG_CXX_FLAGS_CMAKE="-faligned-new"
 m4_foreach([cflag],[
         [-fbracket-depth=4096],
         [-fcf-protection=none],
-        [-Xclang -fno-pch-timestamp],
         [-mno-cet],
         [-Qunused-arguments],
         [-Wno-bool-operation],
-        [-Wno-c++11-narrowing],
-        [-Wno-constant-logical-operand],
-        [-Wno-int-in-bool-context],
-        [-Wno-non-pod-varargs],
-        [-Wno-parentheses-equality],
-        [-Wno-shadow],
-        [-Wno-sign-compare],
-        [-Wno-subobject-linkage],
         [-Wno-tautological-bitwise-compare],
-        [-Wno-tautological-compare],
+        [-Wno-parentheses-equality],
+        [-Wno-sign-compare],
         [-Wno-uninitialized],
-        [-Wno-unnecessary-virtual-specifier],
-        [-Wno-unused-but-set-parameter],
         [-Wno-unused-but-set-variable],
         [-Wno-unused-parameter],
         [-Wno-unused-variable],
-        [-Wno-vla-cxx-extension]],[
+        [-Wno-shadow]],[
     _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_NO_UNUSED,cflag)
     # CMake will test what flags work itself, so pass all flags through to it
     CFG_CXX_FLAGS_CMAKE="$CFG_CXX_FLAGS_CMAKE cflag"
@@ -646,34 +470,6 @@ m4_foreach([ldflag], [
 AC_SUBST(CFG_LDLIBS_THREADS)
 AC_SUBST(CFG_LDFLAGS_THREADS_CMAKE)
 
-# Find link flags for runtime VPI library loading (+verilator+vpi+<lib>).
-# The model executable must export its VPI symbols so the dlopen'd library can
-# resolve them: -rdynamic (GNU ld) or -Wl,-export_dynamic (Darwin); the first the
-# linker accepts wins.  -ldl provides dlopen/dlsym where it is a separate library.
-_MY_LDLIBS_CHECK_SET(CFG_LDFLAGS_DYNAMIC, -rdynamic)
-# -Wl,-export_dynamic contains a comma, so probe it directly rather than through
-# the _MY_LDLIBS_CHECK_* macros (which re-expand their flag argument unquoted).
-if test "$CFG_LDFLAGS_DYNAMIC" = ""; then
-  ACO_SAVE_LIBS="$LIBS"
-  LIBS="$LIBS -Wl,-export_dynamic"
-  AC_MSG_CHECKING([whether $CXX linker accepts -Wl,-export_dynamic])
-  AC_LINK_IFELSE(
-       [AC_LANG_PROGRAM([[]])],
-       [_my_result=yes
-        if test -s conftest.err; then
-          if grep -e "-export_dynamic" conftest.err >/dev/null; then
-            _my_result=no
-          fi
-        fi],
-       [_my_result=no])
-  AC_MSG_RESULT($_my_result)
-  LIBS="$ACO_SAVE_LIBS"
-  if test "$_my_result" = "yes"; then CFG_LDFLAGS_DYNAMIC="-Wl,-export_dynamic"; fi
-fi
-AC_SUBST(CFG_LDFLAGS_DYNAMIC)
-_MY_LDLIBS_CHECK_OPT(CFG_LDLIBS_DYNAMIC, -ldl)
-AC_SUBST(CFG_LDLIBS_DYNAMIC)
-
 # If 'mold' is installed, use it to link for faster buildtimes
 _MY_LDLIBS_CHECK_OPT(CFG_LDFLAGS_SRC, -fuse-ld=mold)
 _MY_LDLIBS_CHECK_OPT(CFG_LDFLAGS_VERILATED, -fuse-ld=mold)
@@ -683,6 +479,9 @@ if test "$CFG_ENABLE_PARTIAL_STATIC" = "yes"; then
   _MY_LDLIBS_CHECK_OPT(CFG_LDFLAGS_SRC, -static-libgcc)
   _MY_LDLIBS_CHECK_OPT(CFG_LDFLAGS_SRC, -static-libstdc++)
   _MY_LDLIBS_CHECK_OPT(CFG_LDFLAGS_SRC, -Xlinker -gc-sections)
+  LTCMALLOC=-l:libtcmalloc_minimal.a
+else
+  LTCMALLOC=-ltcmalloc_minimal
 fi
 AC_SUBST(CFG_LDFLAGS_SRC)
 AC_SUBST(CFG_LDFLAGS_VERILATED)
@@ -692,91 +491,58 @@ AC_SUBST(CFG_LDFLAGS_VERILATED)
 # pthreads is harmless otherwise.
 CFG_LIBS="$LIBS $CFG_LIBS"
 _MY_LDLIBS_CHECK_OPT(CFG_LIBS, -lpthread)
-_MY_LDLIBS_CHECK_OPT(CFG_LIBS, -latomic)
 
 # Check libraries for MingW
 _MY_LDLIBS_CHECK_OPT(CFG_LIBS, -lbcrypt)
 _MY_LDLIBS_CHECK_OPT(CFG_LIBS, -lpsapi)
 
-# Figure out which malloc library to use:
-# - Prefer jemalloc over tcmalloc (it's faster)
-# - If partial static link enabled, prefer static libraries,
-#   but fall back on dynamic if static is not available
-
-# Test for jemalloc
-CFG_HAVE_JEMALLOC=no
-if test "$CFG_WITH_JEMALLOC" != "no"; then
-  if test "$CFG_ENABLE_PARTIAL_STATIC" = "yes"; then
-    _MY_LDLIBS_CHECK_SET(CFG_LIBS_MALLOC, -Xlinker --whole-archive -l:libjemalloc.a -Xlinker --no-whole-archive)
-  fi
-  _MY_LDLIBS_CHECK_SET(CFG_LIBS_MALLOC, -ljemalloc)
-  if test "$CFG_LIBS_MALLOC" != ""; then
-    CFG_HAVE_JEMALLOC=yes
-    AC_DEFINE([HAVE_JEMALLOC],[1],[Defined if have jemalloc])
-  elif test "$CFG_WITH_JEMALLOC" = "yes"; then
-    AC_MSG_ERROR([--enable-jemalloc was given but jemalloc is not available])
-  fi
-fi
-AC_SUBST(HAVE_JEMALLOC)
-
-# Test for tcmalloc
-CFG_HAVE_TCMALLOC=no
-if test "$CFG_HAVE_JEMALLOC" = "yes"; then
-  AC_MSG_NOTICE([jemalloc found, skipping check for tcmalloc])
-elif test "$CFG_WITH_TCMALLOC" != "no"; then
-  if test "$CFG_ENABLE_PARTIAL_STATIC" = "yes"; then
-    _MY_LDLIBS_CHECK_SET(CFG_LIBS_MALLOC, -Xlinker --whole-archive -l:libtcmalloc_minimal.a -Xlinker --no-whole-archive)
-  fi
-  _MY_LDLIBS_CHECK_SET(CFG_LIBS_MALLOC, -ltcmalloc_minimal)
-  if test "$CFG_LIBS_MALLOC" != ""; then
-    CFG_HAVE_TCMALLOC=yes
-    AC_DEFINE([HAVE_TCMALLOC],[1],[Defined if have tcmalloc])
-  elif test "$CFG_WITH_TCMALLOC" = "yes"; then
-    AC_MSG_ERROR([--enable-tcmalloc was given but tcmalloc is not available])
-  fi
-fi
-AC_SUBST(HAVE_TCMALLOC)
-
-if test "$CFG_HAVE_JEMALLOC" = "yes" || test "$CFG_HAVE_TCMALLOC" = "yes"; then
-  # If using custom malloc, add some extra options to make the compiler not assume
-  # it is using its own versions of the standard library functions
-  _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-fno-builtin-malloc)
-  _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-fno-builtin-calloc)
-  _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-fno-builtin-realloc)
-  _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-fno-builtin-free)
-fi
-
-# Finished with libraries
-CFG_LIBS="$CFG_LIBS_MALLOC $CFG_LIBS"
+# Check if tcmalloc is available based on --enable-tcmalloc
+_MY_LDLIBS_CHECK_IFELSE(
+  $LTCMALLOC,
+  [if test "$CFG_WITH_TCMALLOC" != "no"; then
+    CFG_LIBS="$LTCMALLOC $CFG_LIBS";
+    # If using tcmalloc, add some extra options to make the compiler not assume
+    # it is using it's own versions of the standard library functions
+    _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-fno-builtin-malloc)
+    _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-fno-builtin-calloc)
+    _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-fno-builtin-realloc)
+    _MY_CXX_CHECK_OPT(CFG_CXXFLAGS_SRC,-fno-builtin-free)
+   fi],
+  [if test "$CFG_WITH_TCMALLOC" = "yes"; then
+    AC_MSG_ERROR([--enable-tcmalloc was given but test for ${LTCMALLOC} failed])
+   fi])
 AC_SUBST(CFG_LIBS)
 
-# Need C++14 at least
-#Alternative: AX_CXX_COMPILE_STDCXX([14])
+# Need C++11 at least
+#Alternative: AX_CXX_COMPILE_STDCXX([11])
 AC_DEFUN([_MY_CXX_CHECK_CXX_VER],
-   [# _MY_CXX_CHECK_CXX_VER(flag) -- Check if compiler runs C++14
+   [# _MY_CXX_CHECK_CXX_VER(flag) -- Check if compiler runs C++11
     # Set $_my_result
-    AC_RUN_IFELSE(
+    AC_LINK_IFELSE(
      [AC_LANG_PROGRAM([#include <thread>
-#if (__cplusplus < 201402L)
+#if (__cplusplus < 201103L)
 # error "Too old"
 #endif
-    ], [[
-     ]])],
-     [_my_result=yes],
-     [_my_result=no],
+    ], [[ ]])],
+     [_my_result=yes
+      if test -s conftest.err; then
+        if grep -e "$1" conftest.err >/dev/null; then
+          _my_result=no
+        fi
+      fi],
      [_my_result=no])
    ])
 
 # Add $CFG_CXXFLAGS_STD only if can't compile correctly otherwise,
 # as adding std= when not needed can cause errors with the C++ std library.
 CFG_CXXFLAGS_STD=$CFG_CXXFLAGS_STD_NEWEST
-AC_MSG_CHECKING(whether $CXX supports C++14)
+AC_MSG_CHECKING(whether $CXX supports C++11)
 _MY_CXX_CHECK_CXX_VER()
 AC_MSG_RESULT($_my_result)
 if test "$_my_result" = "no" ; then
    CXXFLAGS="$CXXFLAGS $CFG_CXXFLAGS_STD"
    CFG_CXX_FLAGS_CMAKE="$CFG_CXX_FLAGS_CMAKE $CFG_CXXFLAGS_STD"
-   AC_MSG_CHECKING(whether $CXX supports C++14 with $CFG_CXXFLAGS_STD)
+   AC_MSG_CHECKING(whether $CXX supports C++11 with $CFG_CXXFLAGS_STD)
    _MY_CXX_CHECK_CXX_VER()
    AC_MSG_RESULT($_my_result)
 else
@@ -786,28 +552,13 @@ else
 fi
 if test "$_my_result" = "no" ; then
    AC_MSG_NOTICE([[]])
-   AC_MSG_ERROR([[the $CXX compiler appears to not support C++14.
+   AC_MSG_ERROR([[the $CXX compiler appears to not support C++11.
 
-Verilator requires a C++14 or newer compiler.]])
+Verilator requires a C++11 or newer compiler.]])
 
 fi
 AC_SUBST(CFG_CXXFLAGS_STD)
 
-# Compiler precompiled header options (assumes either gcc or clang++)
-AC_MSG_CHECKING([for $CXX precompile header include option])
-if $CXX --help | grep include-pch >/dev/null 2>/dev/null ; then
-   # clang
-   CFG_CXXFLAGS_PCH_I=-include-pch
-   CFG_GCH_IF_CLANG=.gch
-else
-   # GCC
-   CFG_CXXFLAGS_PCH_I=-include
-   CFG_GCH_IF_CLANG=
-fi
-AC_MSG_RESULT($CFG_CXXFLAGS_PCH_I)
-AC_SUBST(CFG_CXXFLAGS_PCH_I)
-AC_SUBST(CFG_GCH_IF_CLANG)
-
 # Checks for library functions.
 AC_CHECK_MEMBER([struct stat.st_mtim.tv_nsec],
     [AC_DEFINE([HAVE_STAT_NSEC],[1],[Defined if struct stat has st_mtim.tv_nsec])],
@@ -822,7 +573,7 @@ ACO_SAVE_LIBS="$LIBS"
 LIBS="$LIBS -lsystemc"
 AC_LINK_IFELSE(
     [AC_LANG_PROGRAM([[#include <systemc.h>
-                     extern "C" int sc_main(int argc, char* argv[]) { return 0; }
+                     extern "C" int sc_main(int argc, char* argv[]) {}
                      ]],[[sc_version()]])],
     [_my_result=yes
      AC_DEFINE([HAVE_SYSTEMC],[1],[Defined if have SystemC library])],
@@ -833,9 +584,6 @@ AC_SUBST(HAVE_SYSTEMC)
 
 # Checks for system services
 
-######################################################################
-## Output
-
 # Other install directories
 pkgdatadir=${datadir}/verilator
 AC_SUBST(pkgdatadir)

docs/AGENTS.md

@@ -1,38 +0,0 @@
-<!-- DESCRIPTION: Verilator: docs/ guidelines for AI coding agents
-     SPDX-FileCopyrightText: 2026-2026 Wilson Snyder
-     SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0 -->
-
-# docs/ Guidelines -- Verilator documentation (\*.rst)
-
-When to check: before editing anything under `docs/`.
-Read the repository-root [AGENTS.md](../AGENTS.md) first for process and cross-cutting rules.
-
-## Writing rules
-
-- Rewrap paragraphs after editing -- keep consistent line length in `*.rst` files.
-
-- Document only stable, implemented features -- never planned or in-development capabilities; prevents user confusion and support burden.
-
-- Explain WHAT and WHEN, not HOW -- conceptual purpose and practical use cases over implementation mechanics; describe behavior ("optimized as pure", not "treated as pure") and clarify ambiguous referents ("in the internals of Verilator").
-
-- Keep terminology consistent -- one term per concept; update docs when renaming code constructs; spell out full terms, avoiding abbreviations like "sim"/"sims".
-
-- Use "how many" for countable nouns (threads, tasks, workers) and "how much" for uncountable quantities.
-
-- Mark internal or experimental features "for internal use only" -- prevents user dependence and forced deprecation cycles later.
-
-- Use specific IEEE references: `IEEE {number}-{year}` plus the section (e.g. `Annex I`) -- a vague "IEEE spec requires" is unverifiable.
-
-- Document all flags with descriptions, not just syntax.
-
-## reStructuredText mechanics
-
-- Use the `:vlopt:` role for Verilator option references -- makes cross-references clickable and consistent.
-
-- Escape angle brackets (`\<`, `\>`) in link targets -- prevents broken links to command-line options.
-
-- Generate documentation examples with `test.extract` from `test_regress` test files -- examples stay synced with actually tested behavior.
-
-## Hard constraint
-
-- Never edit `docs/CONTRIBUTORS` -- only humans may, after reading and agreeing to its statement; remind the user instead.

docs/CONTRIBUTING.rst

@@ -1,7 +1,3 @@
-..
-   SPDX-FileCopyrightText: 2003-2026 Wilson Snyder
-   SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
 Contributing to Verilator
 =========================
 
@@ -11,8 +7,8 @@ This contributing document contains some suggestions that may make
 contributions flow more efficiently.
 
 
-Did you find a Verilator bug?
------------------------------
+Did you find a bug?
+-------------------
 
 - Please **ensure the bug was not already reported** by searching
   `Verilator Issues <https://verilator.org/issues>`__.
@@ -27,13 +23,13 @@ Did you find a Verilator bug?
     demonstrating the bug and expected behavior that is not occurring.
 
   - The ideal example works against other simulators, and is in the
-    test_regress/t test format, as described in `Verilator Internals
-    Documentation
+    test_regress/t test format, as described in
+    `Verilator Internals Documentation
     <https://github.com/verilator/verilator/blob/master/docs/internals.rst>`__.
 
 
-Did you write a patch that fixes a Verilator bug?
--------------------------------------------------
+Did you write a patch that fixes a bug?
+---------------------------------------
 
 - Please `Open a new Verilator issue <https://verilator.org/issues/new>`__
   if there is not one already describing the bug.
@@ -42,18 +38,18 @@ Did you write a patch that fixes a Verilator bug?
   <https://github.com/verilator/verilator/pulls>`__.
 
 - See the coding conventions, and other developer information in
-  ``docs/internals.rst`` in the distribution, or as rendered at `Verilator
-  Internals Documentation
+  ``docs/internals.rst`` in the distribution, or as rendered at
+  `Verilator Internals Documentation
   <https://github.com/verilator/verilator/blob/master/docs/internals.rst>`__.
 
-- Verilator uses GitHub Actions to provide continuous integration. You may
-  want to enable Actions on your GitHub branch to ensure your changes keep
-  the tests passing.
+- Verilator uses GitHub Actions to provide continuous integration.  You
+  may want to enable Actions on your GitHub branch to ensure your changes
+  keep the tests passing.
 
-- Your source-code contributions must be certified as open source, under
-  the `Developer Certificate of Origin
-  <https://developercertificate.org/>`__. On your first contribution, you
-  must either:
+- Your source-code contributions must be certified as open source,
+  under the `Developer Certificate of
+  Origin <https://developercertificate.org/>`__. On your first
+  contribution, you must either:
 
   - Have your patch include the addition of your name to `docs/CONTRIBUTORS
     <CONTRIBUTORS>`__ (preferred).
@@ -76,55 +72,23 @@ Did you write a patch that fixes a Verilator bug?
 - Most important is we get your patch.
 
 
-Do you have questions on Verilator?
------------------------------------
+Do you have questions?
+----------------------
 
-- Please see FAQ section and rest of the `Verilator manual
-  <https://verilator.org/verilator_doc.html>`__, or `Verilator manual (PDF)
-  <https://verilator.org/verilator_doc.pdf>`__.
+- Please see FAQ section and rest of the `Verilator
+  manual <https://verilator.org/verilator_doc.html>`__, or `Verilator
+  manual (PDF) <https://verilator.org/verilator_doc.pdf>`__.
 
 - Ask any question in the `Verilator forum
   <https://verilator.org/forum>`__.
 
 
-AI Policy
----------
-
-Verilator follows the Linux Foundation recommendations regarding the usage
-of Generative Large Language Model Artificial Intelligence (LLM-AI) tools
-and agents for all contributions to the project, including source code,
-test benches, and documentation.
-
-AI assistants and automated agents are not permitted to sign off on
-contributions. A human submitter is strictly responsible for reviewing,
-verifying, and testing all AI-generated content. By submitting, the
-contributor certifies that the generated content is effectively their work
-product and adheres to project standards. This accountability is affirmed
-when the human contributor signs the Developer Certificate of Origin (DCO)
-as outlined in ``docs/CONTRIBUTORS``.
-
-Contributors are encouraged to disclose the significant use of generative
-AI tools in their commit messages or Pull Request descriptions to maintain
-transparency.
-
-Contributors must ensure that the terms and conditions of the generative AI
-tool do not place any contractual restrictions on the tool's output that
-are inconsistent with Verilator's open-source licenses, the project's
-intellectual property policies, or the Open Source Definition.
-
-If any pre-existing copyrighted materials (including third-party
-open-source code or documentation) are included in the AI tool's output,
-the contributor must confirm prior to submission that they have explicit
-permission from the third-party owners to use, modify, and distribute those
-materials under terms compliant with Verilator's licensing policies.
-
-
 Code of Conduct
 ---------------
 
-Our contributors and participants pledge to make participation in our
-project and our community a positive experience for everyone. We follow the
-`Contributor Covenant version 1.4
-<https://www.contributor-covenant.org/version/1/4/code-of-conduct/>`__.
+- Our contributors and participants pledge to make participation in our
+  project and our community a positive experience for everyone. We follow
+  the `Contributor Covenant version 1.4
+  <https://www.contributor-covenant.org/version/1/4/code-of-conduct/>`__.
 
 Thanks!

docs/CONTRIBUTORS

@@ -1,136 +1,67 @@
 The contributors listed below have certified their Verilator contributions
-under the Developer Certificate of Origin
-(https://developercertificate.org/).
-
-AI agents may not edit this file. As a human, you are agreeing to the
-contribution terms including the AI policy in ``docs/CONTRIBUTING.rst``.
+under the Developer Certificate of Origin (https://developercertificate.org/).
 
 Please see the Verilator manual for 200+ additional contributors. Thanks to all.
 
-24bit-xjkp
-404allen404
 Adam Bagley
-Adam Kostrzewski
-Aditya Shevade
-Adrian Sampson
 Adrien Le Masle
-أحمد المحمودي (Ahmed El-Mahmoudy)
-Aidan McNay
-Aisha Salimgereyeva
+Ahmed El-Mahmoudy
 Aleksander Kiryk
 Alex Chadwick
-Alex Solomatnikov
-Alex Zhou
+Àlex Torregrosa
 Aliaksei Chapyzhenka
 Ameya Vikram Singh
-Andrea Calabrese
 Andreas Kuster
 Andrei Kostovski
 Andrew Miloradovsky
 Andrew Nolte
-Andrew Voznytsa
-Andrii Andrieiev
-anonkey
 Anthony Donlon
-Anthony Moore
-apocelipes
 Arkadiusz Kozdra
-Arthur Rosa
-Artur Bieniek
-AUDIY
 Aylon Chaim Porat
-Bartosz Skorowski
-Bartłomiej Chmiel
-Benjamin Collier
-BRDR LIFE
-Brian Li
 Cameron Kirk
-Cameron Waite
-Chih-Mao Chen
-Chris Bachhuber
 Chris Randall
-Christian Hecken
-Christopher Taylor
 Chuxuan Wang
-Chykon
-Congcong Cai
 Conor McCullough
-Cookie
-Dan Ruelas-Petrisko
+Dan Petrisko
 Daniel Bates
-Danny Oler
-Dave Sargeant
-David Garau
 David Horton
-David Ledger
 David Metz
 David Stanford
 David Turner
-dependabot[bot]
-Dercury
-Demin Han
-Diego Roux
-Dominick Grochowina
 Don Williamson
-Dragon-Git
 Drew Ranck
 Drew Taussig
 Driss Hafdi
 Edgar E. Iglesias
-Eddie Rydell
-em2machine
-emmettifelts
-Eric Mejdrich
-Eric Müller
 Eric Rippey
-Eryk Szpotański
 Ethan Sifferman
-Eunseo Song
 Eyck Jentzsch
-Fabian Keßler-Schulz
 Fan Shupei
 february cozzocrea
 Felix Neumärker
 Felix Yan
 Frans Skarman
-Fuad Ismail
-Furqan Nadir
 G-A. Kamendje
 Garrett Smith
-George Polack
 Geza Lore
 Gianfranco Costamagna
-Gijs Burghoorn
-Gilberto Abram
 Glen Gibb
-Graham Rushton
-Greg Davill
-Guokai Chen
-Gus Smith
-Gustav Svensk
 Gökçe Aydos
-Han Qi
+Graham Rushton
+Guokai Chen
+Gustav Svensk
 Harald Heckmann
 Hennadii Chernyshchyk
-hjsanjana
 Howard Su
 Huang Rui
 Huanghuang Zhou
 HungMingWu
 HyungKi Jeong
-Ibrahim Burak Yorulmaz
-Igor Zaworski
 Ilya Barkov
 Iru Cai
 Ivan Vnučec
 Iztok Jeras
-JAEUK LEE
-Jaeuk Lee (이재욱)
 Jake Merdich
-Jakub Michalski
-Jakub Wasilewski
-jalcim
-James Bailey
 James Hanlon
 James Hutchinson
 James Pallister
@@ -139,72 +70,40 @@ Jamey Hicks
 Jamie Iles
 Jan Van Winkel
 Jean Berniolles
-Jean-Nicolas Strauss
-Jeffrey Song
-jeffrey.song
-Jens Yuechao Liu
 Jeremy Bennett
 Jesse Taube
 Jevin Sweval
 Jiacheng Qian
 Jiamin Zhu
-Jiangjie Weng
-Jinyan Xu
-Jitesh Nayak
 Jiuyang Liu
-Joel Bodenmann
 Joey Liu
 John Coiner
 John Demme
-John Khoo
 John Wehle
 Jonathan Drolet
-Jonathan Schröter
-Jordan McConnon
-Jose Drowne
 Jose Loyola
 Josep Sans
 Joseph Nwabueze
 Josh Redford
-Joshua Leahy
-JOTEGO (Jose Tejada)
-Julian Carrier
 Julian Daube
 Julie Schwartz
 Julien Margetts
-Justin Thiel
 Kaleb Barrett
-Kamil Danecki
 Kamil Rakoczy
 Kanad Kanhere
-Kefa Chen
 Keith Colbert
 Kevin Kiningham
-Kevin Nygaard
-Kornel Uriasz
 Kritik Bhimani
 Krzysztof Bieganski
 Krzysztof Boronski
 Krzysztof Boroński
-Krzysztof Obłonczek
-Krzysztof Starecki
-Krzysztof Sychla
 Kuba Ober
-Lan Zongwei
 Larry Doolittle
-Laurent CHARRIER
-Leela Pakanati
-Liam Braun
-Luca Colagrande
-Lucas Amaral
 Ludwig Rogiers
 Lukasz Dalek
-M2kar
 Maarten De Braekeleer
 Maciej Sobkowski
 Marcel Chang
-Marco Bartoli
-Marco Brambilla
 Marco Widmer
 Mariusz Glebocki
 Markus Krause
@@ -212,149 +111,73 @@ Marlon James
 Marshal Qiao
 Martin Schmidt
 Martin Stadler
-Mateusz Gancarz
-Matt Stroud
 Matthew Ballance
-Max Wipfli
-Maxim Fonarev
-Michael Bedford Taylor
-Michael Bikovitsky
 Michael Killough
-Michael Rogenmoser
-Michal Czyz
 Michaël Lefebvre
-Miguel Perez Andrade
 Mike Popoloski
 Miodrag Milanović
 Mladen Slijepcevic
 Morten Borup Petersen
 Mostafa Gamal
-Moubarak Jeje
-Muzaffer Kal
 Nandu Raj
-Natan Kreimer
-Nathan Graybeal
 Nathan Kohagen
 Nathan Myers
-Nick Brereton
-Nikolai Kumar
-Nikolay Puzanov
-Nolan Poe
 Oleh Maksymenko
-Patrick Creighton
 Patrick Stewart
-Paul Bowen-Huggett
-Paul Campbell
-Paul Rigge
-Paul Swirhun
 Paul Wright
-Pawel Jewstafjew
-Pawel Klopotek
-Pawel Kojma
 Pawel Sagan
-Pengcheng Xu
-Peter Birch
 Peter Debacker
 Peter Horvath
 Peter Monsson
-Petr Nohavica
-Philip Axer
 Philipp Wagner
 Pierre-Henri Horrein
 Pieter Kapsenberg
 Piotr Binkowski
 Qingyao Sun
-Quentin Corradi
 Rafal Kapuscik
-Rahul Behl
-Rasfunk
 Raynard Qiao
-Ricardo Barbedo
 Richard Myers
 Risto Pejašinović
 Robert Balas
-Robin Heinemann
-Rodrigo Batista de Moraes
-Rowan Goemans
 Rupert Swarbrick
-Ryan Ziegler
 Ryszard Rozak
-Saksham Gupta
 Samuel Riedel
 Sean Cross
 Sebastien Van Cauwenberghe
-Secturion
-Sergey Chusov
-Sergey Fedorov
 Sergi Granell
-Seth Pellegrino
-Shashvat Prabhu
-Shogo Yamazaki
-Shou-Li Hsu
-spomatasmd
 Srinivasan Venkataramanan
 Stefan Wallentowitz
 Stephen Henry
 Steven Hugg
-Stuart Morris
-sumpster
-Szymon Gizler
 Sören Tempel
-Sumanth Kadiyala
 Teng Huang
-Thomas Aldrian
-Thomas Brown
-Thomas Dybdahl Ahle
-Thomas Santerre
 Tim Hutt
 Tim Snyder
-Tobias Jensen
 Tobias Rosenkranz
 Tobias Wölfel
 Todd Strader
-Tom Jackson
-Tom Manner
 Tomasz Gorochowik
 Topa Topino
 Toru Niina
-Tracy Narine
-Trung Nguyen
 Tudor Timi
 Tymoteusz Blazejczyk
-Tyrone Marhguy
-Udaya Raj Subedi
 Udi Finkelstein
 Unai Martinez-Corral
-Valentin Atepalikhin
 Varun Koyyalagunta
 Vassilis Papaefstathiou
 Veripool API Bot
 Victor Besyakov
-Vikash Patel
 Vito Gamberini
-Wei-Lun Chiu
 William D. Jones
 Wilson Snyder
-Wolfgang Mayerwieser
 Xi Zhang
-Yan Xu
-Yangyu Chen
-Yilin Li
-Yilou Wang
 Yinan Xu
 Yoda Lee
-Yogish Sekhar
 Yossi Nivin
 Yu-Sheng Lin
 Yuri Victorovich
 Yutetsu TAKATSUKASA
 Yves Mathieu
 Zhanglei Wang
-Zhen Yan
-Zhou Shen
-Zhouyi Shen
 Zixi Li
-Zubin Jain
-Àlex Torregrosa
-Ícaro Lima
-Sunimali Rathnayake
+أحمد المحمودي

docs/Makefile

@@ -5,10 +5,10 @@
 #
 # Code available from: https://verilator.org
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of either the GNU Lesser General Public License Version 3
-# or the Perl Artistic License Version 2.0.
-# SPDX-FileCopyrightText: 2025-2026 Wilson Snyder
+# Copyright 2003-2023 by Wilson Snyder. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 #
 ######################################################################
@@ -23,9 +23,9 @@ SPHINXBUILD ?= sphinx-build
 SOURCEDIR = guide
 BUILDDIR = _build
 
-SPHINXOPTS ?= -c guide -j 4
+SPHINXOPTS ?= -c guide
 ifneq ($(VERILATOR_ANALYTICS_ID),)
-  SPHINXOPTS += -D html_theme_options.analytics_id=$(VERILATOR_ANALYTICS_ID)
+SPHINXOPTS += -D html_theme_options.analytics_id=$(VERILATOR_ANALYTICS_ID)
 endif
 
 ######################################################################
@@ -68,21 +68,15 @@ pdf:
 
 ######################################################################
 
-html latex linkcheck::
+html latex linkcheck spelling::
 	$(MAKE) vl-extract
 	$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS)
 	$(PYTHON3) bin/vl_sphinx_fix _build
 
-spelling::
-	$(MAKE) vl-extract
-	$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS)
-	sort -o guide/spelling.txt guide/spelling.txt
-
 help:
 	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS)
 
 clean mostlyclean distclean maintainer-clean::
-	rm -rf _build
 	rm -f $(SCRIPTS) *.tmp
 	rm -f *.aux *.cp *.cps *.dvi *.fn *.fns *.ky *.kys *.log
 	rm -f *.pg *.pgs *.toc *.tp *.tps *.vr *.vrs *.idx

docs/README.rst

@@ -1,25 +0,0 @@
-..
-   SPDX-FileCopyrightText: 2003-2026 Wilson Snyder
-   SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-
-Verilator Documentation
-=======================
-
-This folder contains sources for Verilator documentation.
-
-For formatted documentation see:
-
-- `Verilator README <https://github.com/verilator/verilator>`_
-
-- `Verilator installation and package directory structure
-  <https://verilator.org/install>`_
-
-- `Verilator manual (HTML) <https://verilator.org/verilator_doc.html>`_, or
-  `Verilator manual (PDF) <https://verilator.org/verilator_doc.pdf>`_
-
-- `Subscribe to Verilator announcements
-  <https://github.com/verilator/verilator-announce>`_
-
-- `Verilator forum <https://verilator.org/forum>`_
-
-- `Verilator issues <https://verilator.org/issues>`_

docs/bin/vl_sphinx_extract

@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
-# mypy: disallow-untyped-defs
-# pylint: disable=C0112,C0114,C0115,C0116,C0209,C0301,R0903
+# pylint: disable=C0112,C0114,C0115,C0116,C0209,C0301,R0201,R0903
 # -*- Python -*- See copyright, etc below
 ######################################################################
 
@@ -12,8 +11,9 @@ import re
 
 class VlSphinxExtract:
     debug = 0
+    SkipBasenames = {}
 
-    def process(self, filename: str) -> None:
+    def process(self, filename):
         with open(filename, "r", encoding="utf8") as fhr:
             fhw = None
             for line in fhr:
@@ -23,7 +23,9 @@ class VlSphinxExtract:
                     outname = match.group(1)
                     print("Writing %s" % outname)
                     fhw = open(outname, "w", encoding="utf8")  # pylint: disable=consider-using-with
-                    fhw.write(".. comment: generated by vl_sphinx_extract from " + filename + "\n")
+                    fhw.write(
+                        ".. comment: generated by vl_sphinx_extract from " +
+                        filename + "\n")
                     fhw.write(".. code-block::\n")
                 elif re.match(r'^[=a-zA-Z0-9_]', line):
                     fhw = None
@@ -37,15 +39,18 @@ parser = argparse.ArgumentParser(
     allow_abbrev=False,
     formatter_class=argparse.RawDescriptionHelpFormatter,
     description="""Read a file and extract documentation data.""",
-    epilog="""This program is free software; you can redistribute it and/or modify it
-under the terms of either the GNU Lesser General Public License Version 3
-or the Perl Artistic License Version 2.0.
+    epilog=
+    """ Copyright 2021-2023 by Wilson Snyder.  This package is free software;
+you can redistribute it and/or modify it under the terms of either the GNU
+Lesser General Public License Version 3 or the Perl Artistic License
+Version 2.0.
 
-SPDX-FileCopyrightText: 2021-2026 Wilson Snyder
-SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-""")
+SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0""")
 
-parser.add_argument('--debug', action='store_const', const=9, help='enable debug')
+parser.add_argument('--debug',
+                    action='store_const',
+                    const=9,
+                    help='enable debug')
 parser.add_argument('path', help='path to extract from')
 Args = parser.parse_args()
 

docs/bin/vl_sphinx_fix

@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-# mypy: disallow-untyped-defs
 # pylint: disable=C0112,C0114,C0115,C0116,C0209,C0301,R0903
 # -*- Python -*- See copyright, etc below
 ######################################################################
@@ -13,17 +12,20 @@ import re
 
 class VlSphinxFix:
     debug = 0
+    SkipBasenames = {}
 
-    def process(self, path: str) -> None:
+    def process(self, path):
         if os.path.isdir(path):
             for basefile in os.listdir(path):
                 file = os.path.join(path, basefile)
-                if ((basefile != ".") and (basefile != "..") and not os.path.islink(file)):
+                if ((basefile != ".") and (basefile != "..")
+                        and basefile not in self.SkipBasenames
+                        and not os.path.islink(file)):
                     self.process(file)
         elif re.search(r'\.(html|tex)$', path):
             self._edit(path)
 
-    def _edit(self, filename: str) -> None:
+    def _edit(self, filename):
         is_html = re.search(r'\.(html)$', filename)
         with open(filename, "r", encoding="utf8") as fhr:
             origfile = fhr.read()
@@ -52,15 +54,18 @@ parser = argparse.ArgumentParser(
     allow_abbrev=False,
     formatter_class=argparse.RawDescriptionHelpFormatter,
     description="""Post-process Sphinx HTML.""",
-    epilog="""This program is free software; you can redistribute it and/or modify it
-under the terms of either the GNU Lesser General Public License Version 3
-or the Perl Artistic License Version 2.0.
+    epilog=
+    """ Copyright 2021-2023 by Wilson Snyder.  This package is free software;
+you can redistribute it and/or modify it under the terms of either the GNU
+Lesser General Public License Version 3 or the Perl Artistic License
+Version 2.0.
 
-SPDX-FileCopyrightText: 2021-2026 Wilson Snyder
-SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
-""")
+SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0""")
 
-parser.add_argument('--debug', action='store_const', const=9, help='enable debug')
+parser.add_argument('--debug',
+                    action='store_const',
+                    const=9,
+                    help='enable debug')
 parser.add_argument('path', help='path to edit')
 Args = parser.parse_args()
 

docs/gen/ex_ALWNEVER_faulty.rst

@@ -1,4 +0,0 @@
-.. comment: generated by t_event_control_star_never_bad
-.. code-block:: sv
-
-     always @* a = 100;

docs/gen/ex_ALWNEVER_msg.rst

@@ -1,4 +0,0 @@
-.. comment: generated by t_event_control_star_never_bad
-.. code-block::
-
-   %Warning-ALWNEVER: example.v:1:3 'always @*' will never execute as expression list is empty (no variables read)

docs/gen/ex_ASSIGNEQEXPR_faulty.rst

@@ -1,11 +0,0 @@
-.. comment: generated by t_lint_assigneqexpr_bad
-.. code-block:: sv
-   :linenos:
-   :emphasize-lines: 3,5
-
-     assign d_o =  // Note = not == below
-         (
-         e_o = 1  // <--- Warning: ASSIGNEQEXPR
-         ) ? 1 : (
-         e_o = 0  // <--- Warning: ASSIGNEQEXPR
-         ) ? b_i : 0;

docs/gen/ex_ASSIGNEQEXPR_msg.rst

@@ -1,5 +0,0 @@
-.. comment: generated by t_lint_assigneqexpr_bad
-.. code-block::
-
-   %Warning-ASSIGNEQEXPR: example.v:1:11 Assignment '=' inside expression
-                                                       : ... Was a '==' intended, or suggest use a separate statement

docs/gen/ex_BADVLTPRAGMA_faulty.rst

@@ -1,5 +0,0 @@
-.. comment: generated by t_lint_badvltpragma_bad
-.. code-block:: sv
-   :emphasize-lines: 1
-
-     // verilator lintt_off WIDTH  //<--- Warning (lint_off misspelled)