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[test][hwasan] Implement sanitizer_specific for HWASAN (#75280)

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Vitaly Buka 2023-12-13 14:39:35 -08:00 committed by GitHub
parent f397bdf5ae
commit c636b186bc
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1 changed files with 24 additions and 0 deletions
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compiler-rt/test/sanitizer_common/sanitizer_specific.h
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@ -31,6 +31,30 @@ static void make_mem_good(void *p, size_t s) {
static void make_mem_bad(void *p, size_t s) {
__asan_poison_memory_region(p, s);
}
#elif __has_feature(hwaddress_sanitizer)
# include <sanitizer/hwasan_interface.h>
# include <stdlib.h>
static void check_mem_is_good(void *p, size_t s) {
if (__hwasan_test_shadow(p, s) != -1)
abort();
}
static void make_mem_good(void *p, size_t s) {
__hwasan_tag_memory(p, __hwasan_get_tag_from_pointer(p), s);
}
static void make_mem_bad(void *p, size_t s) {
uint8_t tag = ~__hwasan_get_tag_from_pointer(p);
if (!tag) {
// Nothing wrong with tag zero, but non-zero tags help to detect never
// tagged memory.
tag = 1;
}
__hwasan_tag_memory(p, tag, s);
// With misaligned `p` or short granules we can't guarantee tag mismatch.
if (__hwasan_test_shadow(p, s) != 0)
abort();
if (s > 1 && __hwasan_test_shadow(((char *)p) + s - 1, 1) != 0)
abort();
}
#else
static void check_mem_is_good(void *p, size_t s) {}
static void make_mem_good(void *p, size_t s) {}