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Add a minimum alignment on *nix for the compiler in heap_allocator_proc

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gingerBill
2021-09-08 14:53:42 +01:00
parent ff40e47042
commit d29a0c6680
1 changed files with 14 additions and 4 deletions
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18
src/common_memory.cpp
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@@ -363,6 +363,9 @@ GB_ALLOCATOR_PROC(heap_allocator_proc) {
}
break;
}
alignment = gb_max(alignment, gb_align_of(max_align_t));
if (old_memory == nullptr) {
ptr = aligned_alloc(alignment, (size + alignment - 1) & ~(alignment - 1));
gb_zero_size(ptr, size);
@@ -375,12 +378,17 @@ GB_ALLOCATOR_PROC(heap_allocator_proc) {
ptr = aligned_alloc(alignment, (size + alignment - 1) & ~(alignment - 1));
gb_memmove(ptr, old_memory, old_size);
gb_zero_size(cast(u8 *)ptr + old_size, gb_max(size-old_size, 0));
free(old_memory);
gb_zero_size(cast(u8 *)ptr + old_size, gb_max(size-old_size, 0););
break;
#else
// TODO(bill): *nix version that's decent
case gbAllocation_Alloc: {
int err = posix_memalign(&ptr, alignment, size);
int err = 0;
alignment = gb_max(alignment, gb_align_of(max_align_t));
err = posix_memalign(&ptr, alignment, size);
GB_ASSERT_MSG(err == 0, "posix_memalign err: %d", err);
gb_zero_size(ptr, size);
} break;
@@ -396,6 +404,9 @@ GB_ALLOCATOR_PROC(heap_allocator_proc) {
free(old_memory);
break;
}
alignment = gb_max(alignment, gb_align_of(max_align_t));
if (old_memory == nullptr) {
err = posix_memalign(&ptr, alignment, size);
GB_ASSERT_MSG(err == 0, "posix_memalign err: %d", err);
@@ -413,8 +424,7 @@ GB_ALLOCATOR_PROC(heap_allocator_proc) {
GB_ASSERT(ptr != nullptr);
gb_memmove(ptr, old_memory, old_size);
free(old_memory);
isize n = gb_max(size-old_size, 0);
gb_zero_size(cast(u8 *)ptr + old_size, n);
gb_zero_size(cast(u8 *)ptr + old_size, gb_max(size-old_size, 0));
} break;
#endif