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improve MacOS interposes to make mimalloc compile for older MacOS

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I've got a failure while trying to compile with "-mmacosx-version-min=10.7" since MAC_OS_X_VERSION_MAX_ALLOWED is greater than MAC_OS_X_VERSION_10_15 but still we can't use `aligned_alloc` since of the lower bound (10.7).
I'm not sure about internal details of how `__OSX_AVAILABLE` works, but my hope is the it would only make this interpose available starting from the OS version specified.
Also, it helps me to compile mimalloc with "-mmacosx-version-min=10.7".
This commit is contained in:
Eduard Voronkin 2025-03-06 10:26:22 -08:00
parent 8f40bed086
commit 7023c205aa
1 changed files with 9 additions and 6 deletions
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15
src/alloc-override.c
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@ -77,18 +77,12 @@ typedef void* mi_nothrow_t;
MI_INTERPOSE_MI(calloc),
MI_INTERPOSE_MI(realloc),
MI_INTERPOSE_MI(strdup),
#if defined(MAC_OS_X_VERSION_10_7) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
MI_INTERPOSE_MI(strndup),
#endif
MI_INTERPOSE_MI(realpath),
MI_INTERPOSE_MI(posix_memalign),
MI_INTERPOSE_MI(reallocf),
MI_INTERPOSE_MI(valloc),
MI_INTERPOSE_FUN(malloc_size,mi_malloc_size_checked),
MI_INTERPOSE_MI(malloc_good_size),
#if defined(MAC_OS_X_VERSION_10_15) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_15
MI_INTERPOSE_MI(aligned_alloc),
#endif
#ifdef MI_OSX_ZONE
// we interpose malloc_default_zone in alloc-override-osx.c so we can use mi_free safely
MI_INTERPOSE_MI(free),
@ -99,6 +93,15 @@ typedef void* mi_nothrow_t;
MI_INTERPOSE_FUN(vfree,mi_cfree),
#endif
};
__attribute__((used)) static struct mi_interpose_s _mi_interposes_10_7[]
__attribute__((section("__DATA, __interpose"))) __OSX_AVAILABLE(10.7) = {
MI_INTERPOSE_MI(strndup),
};
__attribute__((used)) static struct mi_interpose_s _mi_interposes_10_15[]
__attribute__((section("__DATA, __interpose"))) __OSX_AVAILABLE(10.15) = {
MI_INTERPOSE_MI(aligned_alloc),
};
#ifdef __cplusplus
extern "C" {