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fix asan mem tracking

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daanx 2023-04-23 19:48:49 -07:00
parent c0bc8abe14
commit 95c2059e89
1 changed files with 4 additions and 9 deletions
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13
src/segment.c
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@ -877,18 +877,13 @@ static mi_segment_t* mi_segment_alloc(size_t required, size_t page_alignment, mi
&segment_slices, &pre_size, &info_slices, commit, tld, os_tld);
if (segment == NULL) return NULL;
// zero the segment info? -- not always needed as it may be zero initialized from the OS
ptrdiff_t ofs = offsetof(mi_segment_t, next);
size_t prefix = offsetof(mi_segment_t, slices) - ofs;
size_t zsize = prefix + (sizeof(mi_slice_t) * (segment_slices + 1)); // one more
// zero the segment info? -- not always needed as it may be zero initialized from the OS
if (!segment->memid.was_zero) {
ptrdiff_t ofs = offsetof(mi_segment_t, next);
size_t prefix = offsetof(mi_segment_t, slices) - ofs;
size_t zsize = prefix + (sizeof(mi_slice_t) * (segment_slices + 1)); // one more
_mi_memzero((uint8_t*)segment + ofs, zsize);
}
else {
mi_track_mem_defined((uint8_t*)segment + ofs,zsize);
mi_assert(mi_mem_is_zero((uint8_t*)segment + ofs, zsize));
}
// initialize the rest of the segment info
const size_t slice_entries = (segment_slices > MI_SLICES_PER_SEGMENT ? MI_SLICES_PER_SEGMENT : segment_slices);