3party/mimalloc
0
0
Fork 0
mirror of https://github.com/microsoft/mimalloc.git synced 2024-12-27 13:33:18 +08:00
Code Issues Projects Releases Wiki Activity

merge from dev

Browse Source
This commit is contained in:
daan 2020-04-07 10:29:14 -07:00
commit 2e175c1221
5 changed files with 15 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
CMakeLists.txt
View File

@ -14,6 +14,7 @@ option(MI_OSX_ZONE "Use malloc zone to override standard malloc on macO
option(MI_LOCAL_DYNAMIC_TLS "Use slightly slower, dlopen-compatible TLS mechanism (Unix)" OFF)
option(MI_BUILD_TESTS "Build test executables" ON)
option(MI_CHECK_FULL "Use full internal invariant checking in DEBUG mode (deprecated, use MI_DEBUG_FULL instead)" OFF)
option(MI_PADDING "Enable padding to detect heap block overflow (only in debug mode)" ON)
include("cmake/mimalloc-config-version.cmake")
@ -99,6 +100,11 @@ if(MI_DEBUG_FULL MATCHES "ON")
list(APPEND mi_defines MI_DEBUG=3) # full invariant checking
endif()
if(MI_PADDING MATCHES "OFF")
message(STATUS "Disable padding of heap blocks in debug mode (MI_PADDING=OFF)")
list(APPEND mi_defines MI_PADDING=0)
endif()
if(MI_USE_CXX MATCHES "ON")
message(STATUS "Use the C++ compiler to compile (MI_USE_CXX=ON)")
set_source_files_properties(${mi_sources} PROPERTIES LANGUAGE CXX )

4
include/mimalloc-types.h
View File

@ -57,7 +57,7 @@ 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
@ -318,8 +318,8 @@ typedef struct mi_random_cxt_s {
int output_available;
} mi_random_ctx_t;
#define MI_PAGES_DIRECT (MI_SMALL_WSIZE_MAX + MI_PADDING_WSIZE + 1)
#define MI_PAGES_DIRECT (MI_SMALL_WSIZE_MAX + MI_PADDING_WSIZE + 1)
// A heap owns a set of pages.
struct mi_heap_s {

4
src/alloc.c
View File

@ -51,7 +51,7 @@ extern inline void* _mi_page_malloc(mi_heap_t* heap, mi_page_t* page, size_t siz
mi_heap_stat_increase(heap, normal[bin], 1);
}
#endif
#if defined(MI_PADDING) && defined(MI_ENCODE_FREELIST)
#if (MI_PADDING>0) && defined(MI_ENCODE_FREELIST)
mi_padding_t* const padding = (mi_padding_t*)((uint8_t*)block + mi_page_usable_block_size(page));
ptrdiff_t delta = ((uint8_t*)padding - (uint8_t*)block - (size - __extra_padding));
mi_assert_internal(delta >= 0 && mi_page_usable_block_size(page) >= (size - __extra_padding + delta));
@ -209,7 +209,7 @@ static inline bool mi_check_is_double_free(const mi_page_t* page, const mi_block
// Check for heap block overflow by setting up padding at the end of the block
// ---------------------------------------------------------------------------
#if defined(MI_PADDING) && defined(MI_ENCODE_FREELIST)
#if (MI_PADDING>0) && defined(MI_ENCODE_FREELIST)
static void mi_check_padding(const mi_page_t* page, const mi_block_t* block);
static const mi_padding_t* mi_page_get_padding(const mi_page_t* page, const mi_block_t* block, size_t* bsize) {

6
src/init.c
View File

@ -32,9 +32,9 @@ const mi_page_t _mi_page_empty = {
#define MI_PAGE_EMPTY() ((mi_page_t*)&_mi_page_empty)
#if defined(MI_PADDING) && (MI_INTPTR_SIZE >= 8)
#define MI_SMALL_PAGES_EMPTY { MI_INIT128(MI_PAGE_EMPTY), MI_PAGE_EMPTY(), MI_PAGE_EMPTY(), MI_PAGE_EMPTY() }
#elif defined(MI_PADDING)
#if (MI_PADDING>0) && (MI_INTPTR_SIZE >= 8)
#define MI_SMALL_PAGES_EMPTY { MI_INIT128(MI_PAGE_EMPTY), MI_PAGE_EMPTY(), MI_PAGE_EMPTY() }
#elif (MI_PADDING>0)
#define MI_SMALL_PAGES_EMPTY { MI_INIT128(MI_PAGE_EMPTY), MI_PAGE_EMPTY(), MI_PAGE_EMPTY(), MI_PAGE_EMPTY(), MI_PAGE_EMPTY(), MI_PAGE_EMPTY() }
#else
#define MI_SMALL_PAGES_EMPTY { MI_INIT128(MI_PAGE_EMPTY), MI_PAGE_EMPTY() }

6
src/options.c
View File

@ -390,9 +390,7 @@ void _mi_error_message(int err, const char* fmt, ...) {
// lsb=1: bit 63-19: relative file name char* (to `mi_fname_base`), bit 18-1: line number
// lsb=0: bit 63-01: return address
// -----------------------------------------------------------------------------------------------
#ifndef NDEBUG
static const char* mi_debug_fname_base = "mimalloc_fname_base";
static const char* mi_debug_fname_invalid = "<mimalloc: invalid source name (due to corruption)>";
#define MI_FNAME_SHIFT 16
#define MI_LINE_SHIFT (MI_FNAME_SHIFT + MI_INTPTR_SHIFT)
@ -459,14 +457,14 @@ void* mi_source_unpack(mi_source_t source, const char** pfname, int* plineno) {
return ((void*)(source.src >> 1));
}
}
#endif
// -----------------------------------------------------------------------------------------------
// Error message for a specific heap block
// -----------------------------------------------------------------------------------------------
void _mi_page_block_error_message(int err, const mi_page_t* page, const mi_block_t* block, const char* msg) {
#if defined(MI_PADDING) && defined(MI_ENCODE_FREELIST)
#if (MI_PADDING>0) && defined(MI_ENCODE_FREELIST)
const size_t bsize = mi_page_usable_block_size(page);
const mi_padding_t* const padding = (mi_padding_t*)((uint8_t*)block + bsize);
const size_t size = (padding->delta <= bsize ? bsize - padding->delta : bsize);