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set pages to noaccess explicitly for valgrind precision

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daan 2022-10-30 12:23:11 -07:00
parent 6e11a054a4
commit b48040e20a
3 changed files with 7 additions and 4 deletions
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5
src/alloc.c
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@ -39,10 +39,11 @@ extern inline void* _mi_page_malloc(mi_heap_t* heap, mi_page_t* page, size_t siz
mi_assert_internal(page->free == NULL || _mi_ptr_page(page->free) == page);
// allow use of the block internally
// todo: can we optimize this call away for non-zero'd release mode?
// note: when tracking we need to avoid ever touching the MI_PADDING since
// that is tracked by valgrind etc. as non-accessible (through the red-zone, see `mimalloc-track.h`)
#if MI_TRACK_ENABLED
const size_t track_bsize = mi_page_block_size(page);
mi_assert_internal(track_bsize >= size);
mi_assert_internal(track_bsize >= size && track_bsize >= MI_PADDING_SIZE);
mi_track_mem_undefined(block,track_bsize - MI_PADDING_SIZE);
#endif