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Darwin: try to improve posix_memalign / zone_memalign wrapper

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It still doesn't set errno though.
This commit is contained in:
Paul Floyd 2023-04-01 22:28:36 +02:00
parent e105ce0d8f
commit 3f4052623c
1 changed files with 8 additions and 1 deletions
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9
coregrind/m_replacemalloc/vg_replace_malloc.c
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@ -1575,7 +1575,8 @@ extern int *___errno (void) __attribute__((weak));
*
*/
/* @todo PJF exactly what is the behaviour if this? */
/* Probably in the wrong place, this is the function
called by posix_memalign, at least on macOS 10.13 */
#define ZONEMEMALIGN(soname, fnname) \
\
void* VG_REPLACE_FUNCTION_EZU(10100,soname,fnname) \
@ -1591,6 +1592,12 @@ extern int *___errno (void) __attribute__((weak));
MALLOC_TRACE("zone_memalign(%p, al %llu, size %llu)", \
zone, (ULong)alignment, (ULong)n ); \
\
if (alignment == 0 \
|| alignment % sizeof (void *) != 0 \
|| (alignment & (alignment - 1)) != 0) { \
SET_ERRNO_EINVAL; \
return NULL; \
} \
/* Round up to minimum alignment if necessary. */ \
if (alignment < VG_MIN_MALLOC_SZB) \
alignment = VG_MIN_MALLOC_SZB; \