108 lines
3.8 KiB
C++
108 lines
3.8 KiB
C++
// -*- mode: C++; c-file-style: "cc-mode" -*-
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//*************************************************************************
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// DESCRIPTION: Verilator: Resolve module/signal name references
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//
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// Code available from: https://verilator.org
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//
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//*************************************************************************
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//
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// Copyright 2003-2025 by Wilson Snyder. This program is free software; you
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// can redistribute it and/or modify it under the terms of either the GNU
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// Lesser General Public License Version 3 or the Perl Artistic License
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// Version 2.0.
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// SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
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//
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//*************************************************************************
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// Visitor to build library mapping patterns from --libmap files, which may
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// be overridden on command line with --work. Patterns are relative to
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// libmap file location.
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//*************************************************************************
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#include "V3PchAstNoMT.h" // VL_MT_DISABLED_CODE_UNIT
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#include "V3LibMap.h"
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#include "V3Graph.h"
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#include "V3Options.h"
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#include "V3Os.h"
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#include "V3Parse.h"
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#include "V3SymTable.h"
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#include <unordered_set>
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#include <vector>
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VL_DEFINE_DEBUG_FUNCTIONS;
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class LibMapVisitor final : public VNVisitor {
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// STATE
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string m_lib; // Library currently being mapped
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string m_rel; // Relative path of current libmap file
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// VISITORS
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void visit(AstParseRef* nodep) override {
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if (!m_lib.empty()) {
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const string& pattern = nodep->name();
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v3Global.libMapp()->addPattern(pattern, m_lib, m_rel);
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}
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}
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void visit(AstLibrary* nodep) override {
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VL_RESTORER(m_lib);
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VL_RESTORER(m_rel);
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m_lib = nodep->name();
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m_rel = V3Os::filenameDir(nodep->fileline()->filename());
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iterateChildren(nodep);
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VL_DO_DANGLING(pushDeletep(nodep->unlinkFrBack()), nodep);
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}
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void visit(AstNode* nodep) override { iterateChildren(nodep); }
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public:
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// CONSTRUCTORS
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LibMapVisitor(AstNetlist* nodep) { iterate(nodep); }
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};
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//######################################################################
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// LibMap class functions
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string V3LibMap::matchMapping(const string& filename) {
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// Check explicit mappings first
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for (const auto& mapping : m_explicitMappings) {
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const string& filepath = V3Os::filenameRelativePath(filename, mapping.base());
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if (VString::wildmatch(filepath, mapping.pattern())) { return mapping.libname(); }
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}
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// Then check wildcard mappings
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for (const auto& mapping : m_wildcardMappings) {
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const string& filepath = V3Os::filenameRelativePath(filename, mapping.base());
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if (VString::wildmatch(filepath, mapping.pattern())) { return mapping.libname(); }
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}
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// Then check directory mappings
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for (const auto& mapping : m_directoryMappings) {
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const string& filepath = V3Os::filenameRelativePath(filename, mapping.base());
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const string& dirpart = V3Os::filenameDir(filepath);
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if (VString::wildmatch(dirpart, mapping.pattern())) { return mapping.libname(); }
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}
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return "work";
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}
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void V3LibMap::addPattern(const string& pattern, const string& libname, const string& base) {
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UINFO(4, __FUNCTION__ << ": pattern '" << pattern << "' => library '" << libname << "'");
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bool isIncDir = pattern.back() == '/';
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const string& nondir = V3Os::filenameNonDir(pattern);
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const string& cleanPattern = V3Os::filenameCleanup(pattern);
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if (isIncDir) {
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m_directoryMappings.push_back({cleanPattern, libname, base});
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} else if (nondir.find('*') != string::npos || nondir.find('?') != string::npos) {
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m_wildcardMappings.push_back({cleanPattern, libname, base});
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} else {
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m_explicitMappings.push_back({cleanPattern, libname, base});
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}
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}
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void V3LibMap::map(AstNetlist* nodep) {
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UINFO(4, __FUNCTION__ << ": ");
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{ LibMapVisitor{nodep}; }
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}
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