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daan 2020-04-28 16:22:38 -07:00
commit 1b0de9b4cf
48 changed files with 384 additions and 934 deletions
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7
include/mimalloc-types.h
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@ -57,11 +57,10 @@ terms of the MIT license. A copy of the license can be found in the file
// Encoded free lists allow detection of corrupted free lists
// and can detect buffer overflows, modify after free, and double `free`s.
#if (MI_SECURE>=3 || MI_DEBUG>=1 || defined(MI_PADDING))
#if (MI_SECURE>=3 || MI_DEBUG>=1 || MI_PADDING > 0)
#define MI_ENCODE_FREELIST 1
#endif
// ------------------------------------------------------
// Platform specific values
// ------------------------------------------------------
@ -101,7 +100,7 @@ terms of the MIT license. A copy of the license can be found in the file
// Main tuning parameters for segment and page sizes
// Sizes for 64-bit, divide by two for 32-bit
#define MI_SEGMENT_SLICE_SHIFT (13 + MI_INTPTR_SHIFT) // 64kb
#define MI_SEGMENT_SHIFT ( 8 + MI_SEGMENT_SLICE_SHIFT) // 16mb
#define MI_SEGMENT_SHIFT ( 7 + MI_SEGMENT_SLICE_SHIFT) // 8mb
#define MI_SMALL_PAGE_SHIFT (MI_SEGMENT_SLICE_SHIFT) // 64kb
#define MI_MEDIUM_PAGE_SHIFT ( 3 + MI_SMALL_PAGE_SHIFT) // 512kb
@ -332,7 +331,7 @@ typedef struct mi_random_cxt_s {
// In debug mode there is a padding stucture at the end of the blocks to check for buffer overflows
#if defined(MI_PADDING)
#if (MI_PADDING)
typedef struct mi_padding_s {
uint32_t canary; // encoded block value to check validity of the padding (in case of overflow)
uint32_t delta; // padding bytes before the block. (mi_usable_size(p) - delta == exact allocated bytes)