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Simplify a bit write_after_free_check

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No need to have a variable check when the
preprocessor can do the job.
This commit is contained in:
jvoisin 2021-12-26 23:06:28 +01:00
parent 2b25c791ee
commit 3572544b81
1 changed files with 2 additions and 4 deletions
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6
h_malloc.c
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@ -439,15 +439,13 @@ static void *slot_pointer(size_t size, void *slab, size_t slot) {
} }
static void write_after_free_check(const char *p, size_t size) { static void write_after_free_check(const char *p, size_t size) {
if (!WRITE_AFTER_FREE_CHECK) { #ifdef WRITE_AFTER_FREE_CHECK
return;
}
for (size_t i = 0; i < size; i += sizeof(u64)) { for (size_t i = 0; i < size; i += sizeof(u64)) {
if (*(const u64 *)(const void *)(p + i)) { if (*(const u64 *)(const void *)(p + i)) {
fatal_error("detected write after free"); fatal_error("detected write after free");
} }
} }
#endif
} }
static const u64 canary_mask = __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ ? static const u64 canary_mask = __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ ?