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merge from dev

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This commit is contained in:
Daan Leijen
2022-12-19 17:08:45 -08:00
parent 6304bbec6e 4f2fdf76a0
commit 92ffc25d79
65 changed files with 793 additions and 741 deletions
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15
src/alloc-aligned.c
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@@ -34,7 +34,7 @@ static mi_decl_noinline void* mi_heap_malloc_zero_aligned_at_fallback(mi_heap_t*
size_t oversize;
if mi_unlikely(alignment > MI_ALIGNMENT_MAX) {
// use OS allocation for very large alignment and allocate inside a huge page (dedicated segment with 1 page)
// This can support alignments >= MI_SEGMENT_SIZE by ensuring the object can be aligned at a point in the
// This can support alignments >= MI_SEGMENT_SIZE by ensuring the object can be aligned at a point in the
// first (and single) page such that the segment info is `MI_SEGMENT_SIZE` bytes before it (so it can be found by aligning the pointer down)
if mi_unlikely(offset != 0) {
// todo: cannot support offset alignment for very large alignments yet
@@ -46,7 +46,7 @@ static mi_decl_noinline void* mi_heap_malloc_zero_aligned_at_fallback(mi_heap_t*
oversize = (size <= MI_SMALL_SIZE_MAX ? MI_SMALL_SIZE_MAX + 1 /* ensure we use generic malloc path */ : size);
p = _mi_heap_malloc_zero_ex(heap, oversize, false, alignment); // the page block size should be large enough to align in the single huge page block
// zero afterwards as only the area from the aligned_p may be committed!
if (p == NULL) return NULL;
if (p == NULL) return NULL;
}
else {
// otherwise over-allocate
@@ -61,9 +61,9 @@ static mi_decl_noinline void* mi_heap_malloc_zero_aligned_at_fallback(mi_heap_t*
mi_assert_internal(adjust < alignment);
void* aligned_p = (void*)((uintptr_t)p + adjust);
if (aligned_p != p) {
mi_page_set_has_aligned(_mi_ptr_page(p), true);
mi_page_set_has_aligned(_mi_ptr_page(p), true);
}
mi_assert_internal(mi_page_usable_block_size(_mi_ptr_page(p)) >= adjust + size);
mi_assert_internal(p == _mi_page_ptr_unalign(_mi_ptr_segment(aligned_p), _mi_ptr_page(aligned_p), aligned_p));
mi_assert_internal(((uintptr_t)aligned_p + offset) % alignment == 0);
@@ -75,7 +75,7 @@ static mi_decl_noinline void* mi_heap_malloc_zero_aligned_at_fallback(mi_heap_t*
const ptrdiff_t zsize = mi_page_usable_block_size(_mi_ptr_page(p)) - diff - MI_PADDING_SIZE;
if (zsize > 0) { _mi_memzero(aligned_p, zsize); }
}
#if MI_TRACK_ENABLED
if (p != aligned_p) {
mi_track_free_size(p, oversize);
@@ -85,7 +85,7 @@ static mi_decl_noinline void* mi_heap_malloc_zero_aligned_at_fallback(mi_heap_t*
mi_track_resize(aligned_p, oversize, size);
}
#endif
return aligned_p;
return aligned_p;
}
// Primitive aligned allocation
@@ -107,7 +107,7 @@ static void* mi_heap_malloc_zero_aligned_at(mi_heap_t* const heap, const size_t
return NULL;
}
*/
if mi_unlikely(size > PTRDIFF_MAX) { // we don't allocate more than PTRDIFF_MAX (see <https://sourceware.org/ml/libc-announce/2019/msg00001.html>)
if mi_unlikely(size > PTRDIFF_MAX) { // we don't allocate more than PTRDIFF_MAX (see <https://sourceware.org/ml/libc-announce/2019/msg00001.html>)
#if MI_DEBUG > 0
_mi_error_message(EOVERFLOW, "aligned allocation request is too large (size %zu, alignment %zu)\n", size, alignment);
#endif
@@ -304,4 +304,3 @@ mi_decl_nodiscard void* mi_recalloc_aligned_at(void* p, size_t newcount, size_t
mi_decl_nodiscard void* mi_recalloc_aligned(void* p, size_t newcount, size_t size, size_t alignment) mi_attr_noexcept {
return mi_heap_recalloc_aligned(mi_get_default_heap(), p, newcount, size, alignment);
}