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build.zig: Support ignore_free #625

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build.zig: Support ignore_free #625

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6 changes: 6 additions & 0 deletions build.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,8 @@ pub fn build(b: *std.Build) void {
"Support for atomic uncollectible allocation") orelse true;
const enable_redirect_malloc = b.option(bool, "enable_redirect_malloc",
"Redirect malloc and friend to GC routines") orelse false;
const enable_ignore_free = b.option(bool, "enable_ignore_free",
"Ignore calls to free") orelse false;
const enable_disclaim = b.option(bool, "enable_disclaim",
"Support alternative finalization interface") orelse true;
const enable_dynamic_pointer_mask = b.option(bool,
Expand Down Expand Up @@ -303,6 +305,10 @@ pub fn build(b: *std.Build) void {
}
}

if (enable_ignore_free) {
flags.append("-D IGNORE_FREE") catch unreachable;
}

if (enable_mmap or enable_munmap) {
flags.append("-D USE_MMAP") catch unreachable;
}
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2 changes: 1 addition & 1 deletion malloc.c
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Expand Up @@ -698,7 +698,7 @@ GC_API void GC_CALL GC_free(void * p)
void free(void * p)
{
# ifdef IGNORE_FREE
# UNUSED_ARG(p);
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UNUSED_ARG(p);
# else
# if defined(GC_LINUX_THREADS) && !defined(USE_PROC_FOR_LIBRARIES)
/* Don't bother with initialization checks. If nothing */
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