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add support for extra debug padding in every block

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This commit is contained in:
daan 2020-04-06 22:05:10 -07:00
parent b304e24c40
commit 120af372ab
6 changed files with 51 additions and 21 deletions
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24
include/mimalloc-internal.h
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@ -32,6 +32,26 @@ terms of the MIT license. A copy of the license can be found in the file
#define mi_decl_cache_align
#endif
/* -----------------------------------------------------------
Padding
----------------------------------------------------------- */
#if (MI_PADDING)
#define MI_EXTRA_PADDING_XPARAM , size_t __extra_padding
#define MI_EXTRA_PADDING_XARG , __extra_padding
#define MI_EXTRA_PADDING_ARG __extra_padding
static inline size_t mi_extra_padding() {
return MI_PADDING_SIZE + mi_option_get(mi_option_debug_extra_padding);
}
#else
#define MI_EXTRA_PADDING_XPARAM
#define MI_EXTRA_PADDING_XARG
#define MI_EXTRA_PADDING_ARG 0
static inline size_t mi_extra_padding() {
return 0;
}
#endif
// "options.c"
void _mi_fputs(mi_output_fun* out, void* arg, const char* prefix, const char* message);
@ -90,7 +110,7 @@ void _mi_abandoned_await_readers(void);
// "page.c"
void* _mi_malloc_generic(mi_heap_t* heap, size_t size MI_SOURCE_XPARAM) mi_attr_noexcept mi_attr_malloc;
void* _mi_malloc_generic(mi_heap_t* heap, size_t size MI_EXTRA_PADDING_XPARAM MI_SOURCE_XPARAM) mi_attr_noexcept mi_attr_malloc;
void _mi_page_retire(mi_page_t* page); // free the page if there are no other pages with many free blocks
void _mi_page_unfull(mi_page_t* page);
@ -123,7 +143,7 @@ mi_msecs_t _mi_clock_end(mi_msecs_t start);
mi_msecs_t _mi_clock_start(void);
// "alloc.c"
void* _mi_page_malloc(mi_heap_t* heap, mi_page_t* page, size_t size MI_SOURCE_XPARAM) mi_attr_noexcept; // called from `_mi_malloc_generic`
void* _mi_page_malloc(mi_heap_t* heap, mi_page_t* page, size_t size MI_EXTRA_PADDING_XPARAM MI_SOURCE_XPARAM) mi_attr_noexcept; // called from `_mi_malloc_generic`
mi_block_t* _mi_page_ptr_unalign(const mi_segment_t* segment, const mi_page_t* page, const void* p);
bool _mi_free_delayed_block(mi_block_t* block);
void _mi_block_zero_init(const mi_page_t* page, void* p, size_t size);

1
include/mimalloc.h
View file

@ -338,6 +338,7 @@ typedef enum mi_option_e {
mi_option_eager_commit_delay,
mi_option_reset_delay,
mi_option_use_numa_nodes,
mi_option_debug_extra_padding,
mi_option_os_tag,
mi_option_max_errors,
_mi_option_last,