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c9a5896468
According to upstream documentation, only GC_WIN32_THREADS is explicit.
This PR fixes a random memory corruption(s) with "-d dynamic_boehm" on OpenMandriva.
1679adc04d.log
```
DEBUG: + VFLAGS='-prod -d dynamic_boehm'
DEBUG: + /usr/bin/clang -Os -fomit-frame-pointer -g3 -gdwarf-4 -Wstrict-aliasing=2 -pipe -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -fstack-protector-all --param=ssp-buffer-size=4 -m64 -mtune=generic -flto -std=gnu99 -w -o tmp_1 v.c -lm -lpthread -Os -fomit-frame-pointer -g3 -gdwarf-4 -Wstrict-aliasing=2 -pipe -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -fstack-protector-all --param=ssp-buffer-size=4 -m64 -mtune=generic -flto -Wl,-O2 -Wl,--no-undefined -flto
DEBUG: + ./tmp_1 -no-parallel -o tmp_2 -prod -d dynamic_boehm cmd/v
DEBUG: + ./tmp_2 -o v -prod -d dynamic_boehm cmd/v
DEBUG: /var/tmp/rpm-tmp.mcjmqc: line 52: 644 Bus error (core dumped) ./v build-tools
```
120 lines
2.9 KiB
V
120 lines
2.9 KiB
V
module builtin
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#flag -DGC_THREADS=1
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$if dynamic_boehm ? {
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$if windows {
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$if tinyc {
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#flag -I @VEXEROOT/thirdparty/libgc/include
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#flag -L @VEXEROOT/thirdparty/tcc/lib
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#flag -lgc
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} $else $if msvc {
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#flag -DGC_BUILTIN_ATOMIC=1
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#flag -I @VEXEROOT/thirdparty/libgc/include
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} $else {
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#flag -DGC_WIN32_THREADS=1
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#flag -DGC_BUILTIN_ATOMIC=1
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#flag -I @VEXEROOT/thirdparty/libgc
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#flag @VEXEROOT/thirdparty/libgc/gc.o
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}
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} $else {
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$if $pkgconfig('bdw-gc') {
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#pkgconfig bdw-gc
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} $else {
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$if openbsd || freebsd {
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#flag -I/usr/local/include
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#flag -L/usr/local/lib
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}
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#flag -lgc
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}
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}
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} $else {
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#flag -DGC_BUILTIN_ATOMIC=1
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$if macos || linux {
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#flag -I @VEXEROOT/thirdparty/libgc/include
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$if (!macos && prod && !tinyc && !debug) || !(amd64 || arm64 || i386 || arm32) {
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// TODO: replace the architecture check with a `!$exists("@VEXEROOT/thirdparty/tcc/lib/libgc.a")` comptime call
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#flag @VEXEROOT/thirdparty/libgc/gc.o
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} $else {
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#flag @VEXEROOT/thirdparty/tcc/lib/libgc.a
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}
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#flag -ldl
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#flag -lpthread
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} $else $if freebsd {
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// Tested on FreeBSD 13.0-RELEASE-p3, with clang, gcc and tcc:
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#flag -DBUS_PAGE_FAULT=T_PAGEFLT
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$if !tinyc {
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#flag -I @VEXEROOT/thirdparty/libgc/include
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#flag @VEXEROOT/thirdparty/libgc/gc.o
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}
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$if tinyc {
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#flag -I/usr/local/include
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#flag $first_existing("/usr/local/lib/libgc.a", "/usr/lib/libgc.a")
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#flag -lgc
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}
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#flag -lpthread
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} $else $if openbsd {
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#flag -I/usr/local/include
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#flag $first_existing("/usr/local/lib/libgc.a", "/usr/lib/libgc.a")
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#flag -lpthread
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} $else $if windows {
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#flag -DGC_NOT_DLL=1
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#flag -DGC_WIN32_THREADS=1
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$if tinyc {
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#flag -I @VEXEROOT/thirdparty/libgc/include
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#flag @VEXEROOT/thirdparty/tcc/lib/libgc.a
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#flag -luser32
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} $else {
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#flag -I @VEXEROOT/thirdparty/libgc/include
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#flag @VEXEROOT/thirdparty/libgc/gc.o
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}
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} $else $if $pkgconfig('bdw-gc') {
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#pkgconfig bdw-gc
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} $else {
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#flag -lgc
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}
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}
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$if gcboehm_leak ? {
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#flag -DGC_DEBUG=1
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}
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#include <gc.h>
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// replacements for `malloc()/calloc()`, `realloc()` and `free()`
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// for use with Boehm-GC
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// Do not use them manually. They are automatically chosen when
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// compiled with `-gc boehm` or `-gc boehm_leak`.
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fn C.GC_MALLOC(n usize) voidptr
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fn C.GC_MALLOC_ATOMIC(n usize) voidptr
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fn C.GC_MALLOC_UNCOLLECTABLE(n usize) voidptr
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fn C.GC_REALLOC(ptr voidptr, n usize) voidptr
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fn C.GC_FREE(ptr voidptr)
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// explicitly perform garbage collection now! Garbage collections
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// are done automatically when needed, so this function is hardly needed
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fn C.GC_gcollect()
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// functions to temporarily suspend/resume garbage collection
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fn C.GC_disable()
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fn C.GC_enable()
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// returns non-zero if GC is disabled
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fn C.GC_is_disabled() int
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// protect memory block from being freed before this call
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fn C.GC_reachable_here(voidptr)
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// for leak detection it is advisable to do explicit garbage collections
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pub fn gc_check_leaks() {
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$if gcboehm_leak ? {
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C.GC_gcollect()
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}
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}
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