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Merge branch 'heap_fix_7912' of ssh://github.com/deepikabhavnani/mbed-os into deepikabhavnani-heap_fix_7912

pull/8423/head
Cruz Monrreal II 2018-10-12 21:46:27 -05:00
parent 6d7b655b87 0e758796f6
commit 2f6aa3331f
1 changed files with 27 additions and 15 deletions
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42
platform/mbed_alloc_wrappers.cpp
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@ -40,13 +40,14 @@ are active, the second one (MBED_MEM_TRACING_ENABLED) will trace the first one's
/* Implementation of the runtime max heap usage checker */
/******************************************************************************/
/* Size must be a multiple of 8 to keep alignment */
typedef struct {
uint32_t size;
uint32_t pad;
uint32_t signature;
} alloc_info_t;
#ifdef MBED_HEAP_STATS_ENABLED
#define MBED_HEAP_STATS_SIGNATURE (0xdeadbeef)
static SingletonPtr<PlatformMutex> malloc_stats_mutex;
static mbed_stats_heap_t heap_stats = {0, 0, 0, 0, 0, 0, 0};
@ -106,6 +107,7 @@ extern "C" void *malloc_wrapper(struct _reent *r, size_t size, void *caller)
alloc_info_t *alloc_info = (alloc_info_t *)__real__malloc_r(r, size + sizeof(alloc_info_t));
if (alloc_info != NULL) {
alloc_info->size = size;
alloc_info->signature = MBED_HEAP_STATS_SIGNATURE;
ptr = (void *)(alloc_info + 1);
heap_stats.current_size += size;
heap_stats.total_size += size;
@ -186,13 +188,18 @@ extern "C" void free_wrapper(struct _reent *r, void *ptr, void *caller)
alloc_info_t *alloc_info = NULL;
if (ptr != NULL) {
alloc_info = ((alloc_info_t *)ptr) - 1;
size_t user_size = alloc_info->size;
size_t alloc_size = MALLOC_HEAP_TOTAL_SIZE(MALLOC_HEADER_PTR(alloc_info));
heap_stats.current_size -= user_size;
heap_stats.alloc_cnt -= 1;
heap_stats.overhead_size -= (alloc_size - user_size);
if (MBED_HEAP_STATS_SIGNATURE == alloc_info->signature) {
size_t user_size = alloc_info->size;
size_t alloc_size = MALLOC_HEAP_TOTAL_SIZE(MALLOC_HEADER_PTR(alloc_info));
alloc_info->signature = 0x0;
heap_stats.current_size -= user_size;
heap_stats.alloc_cnt -= 1;
heap_stats.overhead_size -= (alloc_size - user_size);
__real__free_r(r, (void *)alloc_info);
} else {
__real__free_r(r, ptr);
}
}
__real__free_r(r, (void *)alloc_info);
malloc_stats_mutex->unlock();
#else // #ifdef MBED_HEAP_STATS_ENABLED
@ -233,7 +240,6 @@ extern "C" void *__wrap__memalign_r(struct _reent *r, size_t alignment, size_t b
}
/******************************************************************************/
/* ARMCC / IAR memory allocation wrappers */
/******************************************************************************/
@ -288,6 +294,7 @@ extern "C" void *malloc_wrapper(size_t size, void *caller)
alloc_info_t *alloc_info = (alloc_info_t *)SUPER_MALLOC(size + sizeof(alloc_info_t));
if (alloc_info != NULL) {
alloc_info->size = size;
alloc_info->signature = MBED_HEAP_STATS_SIGNATURE;
ptr = (void *)(alloc_info + 1);
heap_stats.current_size += size;
heap_stats.total_size += size;
@ -386,13 +393,18 @@ extern "C" void free_wrapper(void *ptr, void *caller)
alloc_info_t *alloc_info = NULL;
if (ptr != NULL) {
alloc_info = ((alloc_info_t *)ptr) - 1;
size_t user_size = alloc_info->size;
size_t alloc_size = MALLOC_HEAP_TOTAL_SIZE(MALLOC_HEADER_PTR(alloc_info));
heap_stats.current_size -= user_size;
heap_stats.alloc_cnt -= 1;
heap_stats.overhead_size -= (alloc_size - user_size);
if (MBED_HEAP_STATS_SIGNATURE == alloc_info->signature) {
size_t user_size = alloc_info->size;
size_t alloc_size = MALLOC_HEAP_TOTAL_SIZE(MALLOC_HEADER_PTR(alloc_info));
alloc_info->signature = 0x0;
heap_stats.current_size -= user_size;
heap_stats.alloc_cnt -= 1;
heap_stats.overhead_size -= (alloc_size - user_size);
SUPER_FREE((void *)alloc_info);
} else {
SUPER_FREE(ptr);
}
}
SUPER_FREE((void *)alloc_info);
malloc_stats_mutex->unlock();
#else // #ifdef MBED_HEAP_STATS_ENABLED