Glue between the null display driver and the rest of Magic so that
running with -d null does not require any process-level resources
(signals, timers, stdin, an X display, or a Tcl interpreter).
* utils/signals.c — gate setitimer, fcntl-based file watches, kill
and the legacy sigsetmask/sigaction setup behind #ifdef
__EMSCRIPTEN__. Every signals path becomes a no-op in WASM.
Also fixes DBWriteBackup() being called with one argument when
its real prototype takes three.
* windows/windDisp.c — WindUpdate() returns immediately when
GrDisplayStatus == DISPLAY_SUSPEND. This is the runtime
counterpart to the null driver's DISPLAY_SUSPEND state.
* extflat/EFargs.c — EFArgs() with a missing input name no longer
jumps to "usage:" in headless WASM (which would call MainExit and
kill the process); it sets *err_result and returns NULL so the
caller can decide what to do. Native MAGIC_WRAPPER and native
non-MAGIC_WRAPPER builds keep their original behavior.
* dbwind/DBWcommands.c — registers exttosim / ext2sim / exttospice /
ext2spice in non-MAGIC_WRAPPER builds. Without this, WASM users
could not invoke these commands at all (they were previously
inside an #ifdef MAGIC_WRAPPER block). The C implementations
(CmdExtToSim / CmdExtToSpice) are linked unconditionally outside
modular builds.
* textio/txCommands.c, textio/textio.h — TxDispatchString(), a new
library-style command entry point that parses a single string,
dispatches it through WindSendCommand and returns a status code.
This is what magic_wasm_run_command() calls from JavaScript.
These bugs all exist in stock Magic but were tolerated by the K&R-loose
native build. The strict WASM call_indirect type checks turned them up.
* cif/CIFhier.c: ASSERT in cifFlatMaskHints accessed
oldproprec->prop_value.prop_type, but prop_type is a top-level member
of PropertyRecord. Changed to oldproprec->prop_type.
* extflat/EFargs.c: efLoadSearchPath was assigning a pointer to a
string literal ("." in RO data), which callers later try to free or
StrDup. Replaced with StrDup(path, ".") so the pointer always lives
on the heap.
* router/rtrVia.c: rtrFollowName called RtrMilestonePrint("#"), but
the function takes no arguments.
* sim/SimSelect.c: SimAddLabels called DBWLabelChanged with five
arguments, but its real signature is (CellDef *, Label *, int).
Replaced with the equivalent DBWAreaChanged call.
* windows/windView.c: extern declaration of DBMovePoint had return
type void, but the function actually returns bool.
Support gcc -Werror=format-security which is used by default on Fedora.
ext2spice/ext2spice.c: format not a string literal and no format arguments
extflat/EFargs.c: likewise
windows/windCmdNR.c: likewise
with "extract do local" now being equivalent to "extract path .".
This allows extraction files to be put in a subdirectory and not
clog up the current working directory. Also: Fixed some behavior
around the use of "ext2spice -p <path>" so that it (1) works, and
(2) is compatible with the new "extract path". Since the ext2spice
and ext2sim commands are effectively independent of the primary
extraction, the "-p" option is needed to correspond to the use of
"extract path". Hopefully this is seen as only a minor inconvenience.
This commit makes the code (mostly) C99-compatible, enabling to compile
it without the -Wno-error=implicit-function-declaration flag. This
way, Magic becomes usable on arm64 architectures, specifically on Apple
computers with M1/M2 SoC.
implements a method for handling ports in a subcircuit that have different
port names and indexes but are shorted together. "none" is the default
and backwards-compatible behavior that merges ports together, which will
often cause one of the ports to be optimized out of the netlist. "resistor"
will separate the port names with a 0-ohm ideal resistor. "voltage" will
separate the port names with a 0-volt voltage source. This should work
well for simulation and potentially for LVS, although its impact on LVS
has not been fully investigated.
Intubun
Mamoru TASAKA
Tim Edwards
Alessandro De Laurenzis