Rahul Dahiya / Mbed OS STM32F7 Ethernet

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mbed-os/platform/mbed_alloc_wrappers.cpp@0:fb8047b156bb, 2020-01-15 (annotated)

Committer:
rahul_dahiya
Date:
Wed Jan 15 15:57:15 2020 +0530
Revision:
0:fb8047b156bb
STM32F7 LWIP

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rahul_dahiya 0:fb8047b156bb 1 /* mbed Microcontroller Library
rahul_dahiya 0:fb8047b156bb 2 * Copyright (c) 2006-2016 ARM Limited
rahul_dahiya 0:fb8047b156bb 3 *
rahul_dahiya 0:fb8047b156bb 4 * Licensed under the Apache License, Version 2.0 (the "License");
rahul_dahiya 0:fb8047b156bb 5 * you may not use this file except in compliance with the License.
rahul_dahiya 0:fb8047b156bb 6 * You may obtain a copy of the License at
rahul_dahiya 0:fb8047b156bb 7 *
rahul_dahiya 0:fb8047b156bb 8 * http://www.apache.org/licenses/LICENSE-2.0
rahul_dahiya 0:fb8047b156bb 9 *
rahul_dahiya 0:fb8047b156bb 10 * Unless required by applicable law or agreed to in writing, software
rahul_dahiya 0:fb8047b156bb 11 * distributed under the License is distributed on an "AS IS" BASIS,
rahul_dahiya 0:fb8047b156bb 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rahul_dahiya 0:fb8047b156bb 13 * See the License for the specific language governing permissions and
rahul_dahiya 0:fb8047b156bb 14 * limitations under the License.
rahul_dahiya 0:fb8047b156bb 15 */
rahul_dahiya 0:fb8047b156bb 16
rahul_dahiya 0:fb8047b156bb 17 #include "platform/mbed_mem_trace.h"
rahul_dahiya 0:fb8047b156bb 18 #include "platform/mbed_stats.h"
rahul_dahiya 0:fb8047b156bb 19 #include "platform/mbed_toolchain.h"
rahul_dahiya 0:fb8047b156bb 20 #include "platform/SingletonPtr.h"
rahul_dahiya 0:fb8047b156bb 21 #include "platform/PlatformMutex.h"
rahul_dahiya 0:fb8047b156bb 22 #include <stddef.h>
rahul_dahiya 0:fb8047b156bb 23 #include <stdio.h>
rahul_dahiya 0:fb8047b156bb 24 #include <string.h>
rahul_dahiya 0:fb8047b156bb 25 #include <stdlib.h>
rahul_dahiya 0:fb8047b156bb 26
rahul_dahiya 0:fb8047b156bb 27 /* There are two memory tracers in mbed OS:
rahul_dahiya 0:fb8047b156bb 28
rahul_dahiya 0:fb8047b156bb 29 - the first can be used to detect the maximum heap usage at runtime. It is
rahul_dahiya 0:fb8047b156bb 30 activated by defining the MBED_HEAP_STATS_ENABLED macro.
rahul_dahiya 0:fb8047b156bb 31 - the second can be used to trace each memory call by automatically invoking
rahul_dahiya 0:fb8047b156bb 32 a callback on each memory operation (see hal/api/mbed_mem_trace.h). It is
rahul_dahiya 0:fb8047b156bb 33 activated by defining the MBED_MEM_TRACING_ENABLED macro.
rahul_dahiya 0:fb8047b156bb 34
rahul_dahiya 0:fb8047b156bb 35 Both tracers can be activated and deactivated in any combination. If both tracers
rahul_dahiya 0:fb8047b156bb 36 are active, the second one (MBED_MEM_TRACING_ENABLED) will trace the first one's
rahul_dahiya 0:fb8047b156bb 37 (MBED_HEAP_STATS_ENABLED) memory calls.*/
rahul_dahiya 0:fb8047b156bb 38
rahul_dahiya 0:fb8047b156bb 39 /******************************************************************************/
rahul_dahiya 0:fb8047b156bb 40 /* Implementation of the runtime max heap usage checker */
rahul_dahiya 0:fb8047b156bb 41 /******************************************************************************/
rahul_dahiya 0:fb8047b156bb 42
rahul_dahiya 0:fb8047b156bb 43 /* Size must be a multiple of 8 to keep alignment */
rahul_dahiya 0:fb8047b156bb 44 typedef struct {
rahul_dahiya 0:fb8047b156bb 45 uint32_t size;
rahul_dahiya 0:fb8047b156bb 46 uint32_t pad;
rahul_dahiya 0:fb8047b156bb 47 } alloc_info_t;
rahul_dahiya 0:fb8047b156bb 48
rahul_dahiya 0:fb8047b156bb 49 #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 50 static SingletonPtr<PlatformMutex> mem_trace_mutex;
rahul_dahiya 0:fb8047b156bb 51 #endif
rahul_dahiya 0:fb8047b156bb 52 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 53 static SingletonPtr<PlatformMutex> malloc_stats_mutex;
rahul_dahiya 0:fb8047b156bb 54 static mbed_stats_heap_t heap_stats = {0, 0, 0, 0, 0};
rahul_dahiya 0:fb8047b156bb 55 #endif
rahul_dahiya 0:fb8047b156bb 56
rahul_dahiya 0:fb8047b156bb 57 void mbed_stats_heap_get(mbed_stats_heap_t *stats)
rahul_dahiya 0:fb8047b156bb 58 {
rahul_dahiya 0:fb8047b156bb 59 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 60 extern uint32_t mbed_heap_size;
rahul_dahiya 0:fb8047b156bb 61 heap_stats.reserved_size = mbed_heap_size;
rahul_dahiya 0:fb8047b156bb 62
rahul_dahiya 0:fb8047b156bb 63 malloc_stats_mutex->lock();
rahul_dahiya 0:fb8047b156bb 64 memcpy(stats, &heap_stats, sizeof(mbed_stats_heap_t));
rahul_dahiya 0:fb8047b156bb 65 malloc_stats_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 66 #else
rahul_dahiya 0:fb8047b156bb 67 memset(stats, 0, sizeof(mbed_stats_heap_t));
rahul_dahiya 0:fb8047b156bb 68 #endif
rahul_dahiya 0:fb8047b156bb 69 }
rahul_dahiya 0:fb8047b156bb 70
rahul_dahiya 0:fb8047b156bb 71 /******************************************************************************/
rahul_dahiya 0:fb8047b156bb 72 /* GCC memory allocation wrappers */
rahul_dahiya 0:fb8047b156bb 73 /******************************************************************************/
rahul_dahiya 0:fb8047b156bb 74
rahul_dahiya 0:fb8047b156bb 75 #if defined(TOOLCHAIN_GCC)
rahul_dahiya 0:fb8047b156bb 76
rahul_dahiya 0:fb8047b156bb 77 #ifdef FEATURE_UVISOR
rahul_dahiya 0:fb8047b156bb 78 #include "uvisor-lib/uvisor-lib.h"
rahul_dahiya 0:fb8047b156bb 79 #endif/* FEATURE_UVISOR */
rahul_dahiya 0:fb8047b156bb 80
rahul_dahiya 0:fb8047b156bb 81 extern "C" {
rahul_dahiya 0:fb8047b156bb 82 void * __real__malloc_r(struct _reent * r, size_t size);
rahul_dahiya 0:fb8047b156bb 83 void * __real__memalign_r(struct _reent * r, size_t alignment, size_t bytes);
rahul_dahiya 0:fb8047b156bb 84 void * __real__realloc_r(struct _reent * r, void * ptr, size_t size);
rahul_dahiya 0:fb8047b156bb 85 void __real__free_r(struct _reent * r, void * ptr);
rahul_dahiya 0:fb8047b156bb 86 void* __real__calloc_r(struct _reent * r, size_t nmemb, size_t size);
rahul_dahiya 0:fb8047b156bb 87 }
rahul_dahiya 0:fb8047b156bb 88
rahul_dahiya 0:fb8047b156bb 89 // TODO: memory tracing doesn't work with uVisor enabled.
rahul_dahiya 0:fb8047b156bb 90 #if !defined(FEATURE_UVISOR)
rahul_dahiya 0:fb8047b156bb 91
rahul_dahiya 0:fb8047b156bb 92 extern "C" void * __wrap__malloc_r(struct _reent * r, size_t size) {
rahul_dahiya 0:fb8047b156bb 93 void *ptr = NULL;
rahul_dahiya 0:fb8047b156bb 94 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 95 malloc_stats_mutex->lock();
rahul_dahiya 0:fb8047b156bb 96 alloc_info_t *alloc_info = (alloc_info_t*)__real__malloc_r(r, size + sizeof(alloc_info_t));
rahul_dahiya 0:fb8047b156bb 97 if (alloc_info != NULL) {
rahul_dahiya 0:fb8047b156bb 98 alloc_info->size = size;
rahul_dahiya 0:fb8047b156bb 99 ptr = (void*)(alloc_info + 1);
rahul_dahiya 0:fb8047b156bb 100 heap_stats.current_size += size;
rahul_dahiya 0:fb8047b156bb 101 heap_stats.total_size += size;
rahul_dahiya 0:fb8047b156bb 102 heap_stats.alloc_cnt += 1;
rahul_dahiya 0:fb8047b156bb 103 if (heap_stats.current_size > heap_stats.max_size) {
rahul_dahiya 0:fb8047b156bb 104 heap_stats.max_size = heap_stats.current_size;
rahul_dahiya 0:fb8047b156bb 105 }
rahul_dahiya 0:fb8047b156bb 106 } else {
rahul_dahiya 0:fb8047b156bb 107 heap_stats.alloc_fail_cnt += 1;
rahul_dahiya 0:fb8047b156bb 108 }
rahul_dahiya 0:fb8047b156bb 109 malloc_stats_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 110 #else // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 111 ptr = __real__malloc_r(r, size);
rahul_dahiya 0:fb8047b156bb 112 #endif // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 113 #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 114 mem_trace_mutex->lock();
rahul_dahiya 0:fb8047b156bb 115 mbed_mem_trace_malloc(ptr, size, MBED_CALLER_ADDR());
rahul_dahiya 0:fb8047b156bb 116 mem_trace_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 117 #endif // #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 118 return ptr;
rahul_dahiya 0:fb8047b156bb 119 }
rahul_dahiya 0:fb8047b156bb 120
rahul_dahiya 0:fb8047b156bb 121 extern "C" void * __wrap__realloc_r(struct _reent * r, void * ptr, size_t size) {
rahul_dahiya 0:fb8047b156bb 122 void *new_ptr = NULL;
rahul_dahiya 0:fb8047b156bb 123 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 124 // Implement realloc_r with malloc and free.
rahul_dahiya 0:fb8047b156bb 125 // The function realloc_r can't be used here directly since
rahul_dahiya 0:fb8047b156bb 126 // it can call into __wrap__malloc_r (returns ptr + 4) or
rahul_dahiya 0:fb8047b156bb 127 // resize memory directly (returns ptr + 0).
rahul_dahiya 0:fb8047b156bb 128
rahul_dahiya 0:fb8047b156bb 129 // Note - no lock needed since malloc and free are thread safe
rahul_dahiya 0:fb8047b156bb 130
rahul_dahiya 0:fb8047b156bb 131 // Get old size
rahul_dahiya 0:fb8047b156bb 132 uint32_t old_size = 0;
rahul_dahiya 0:fb8047b156bb 133 if (ptr != NULL) {
rahul_dahiya 0:fb8047b156bb 134 alloc_info_t *alloc_info = ((alloc_info_t*)ptr) - 1;
rahul_dahiya 0:fb8047b156bb 135 old_size = alloc_info->size;
rahul_dahiya 0:fb8047b156bb 136 }
rahul_dahiya 0:fb8047b156bb 137
rahul_dahiya 0:fb8047b156bb 138 // Allocate space
rahul_dahiya 0:fb8047b156bb 139 if (size != 0) {
rahul_dahiya 0:fb8047b156bb 140 new_ptr = malloc(size);
rahul_dahiya 0:fb8047b156bb 141 }
rahul_dahiya 0:fb8047b156bb 142
rahul_dahiya 0:fb8047b156bb 143 // If the new buffer has been allocated copy the data to it
rahul_dahiya 0:fb8047b156bb 144 // and free the old buffer
rahul_dahiya 0:fb8047b156bb 145 if (new_ptr != NULL) {
rahul_dahiya 0:fb8047b156bb 146 uint32_t copy_size = (old_size < size) ? old_size : size;
rahul_dahiya 0:fb8047b156bb 147 memcpy(new_ptr, (void*)ptr, copy_size);
rahul_dahiya 0:fb8047b156bb 148 free(ptr);
rahul_dahiya 0:fb8047b156bb 149 }
rahul_dahiya 0:fb8047b156bb 150 #else // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 151 new_ptr = __real__realloc_r(r, ptr, size);
rahul_dahiya 0:fb8047b156bb 152 #endif // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 153 #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 154 mem_trace_mutex->lock();
rahul_dahiya 0:fb8047b156bb 155 mbed_mem_trace_realloc(new_ptr, ptr, size, MBED_CALLER_ADDR());
rahul_dahiya 0:fb8047b156bb 156 mem_trace_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 157 #endif // #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 158 return new_ptr;
rahul_dahiya 0:fb8047b156bb 159 }
rahul_dahiya 0:fb8047b156bb 160
rahul_dahiya 0:fb8047b156bb 161 extern "C" void __wrap__free_r(struct _reent * r, void * ptr) {
rahul_dahiya 0:fb8047b156bb 162 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 163 malloc_stats_mutex->lock();
rahul_dahiya 0:fb8047b156bb 164 alloc_info_t *alloc_info = NULL;
rahul_dahiya 0:fb8047b156bb 165 if (ptr != NULL) {
rahul_dahiya 0:fb8047b156bb 166 alloc_info = ((alloc_info_t*)ptr) - 1;
rahul_dahiya 0:fb8047b156bb 167 heap_stats.current_size -= alloc_info->size;
rahul_dahiya 0:fb8047b156bb 168 heap_stats.alloc_cnt -= 1;
rahul_dahiya 0:fb8047b156bb 169 }
rahul_dahiya 0:fb8047b156bb 170 __real__free_r(r, (void*)alloc_info);
rahul_dahiya 0:fb8047b156bb 171 malloc_stats_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 172 #else // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 173 __real__free_r(r, ptr);
rahul_dahiya 0:fb8047b156bb 174 #endif // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 175 #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 176 mem_trace_mutex->lock();
rahul_dahiya 0:fb8047b156bb 177 mbed_mem_trace_free(ptr, MBED_CALLER_ADDR());
rahul_dahiya 0:fb8047b156bb 178 mem_trace_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 179 #endif // #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 180 }
rahul_dahiya 0:fb8047b156bb 181
rahul_dahiya 0:fb8047b156bb 182 extern "C" void * __wrap__calloc_r(struct _reent * r, size_t nmemb, size_t size) {
rahul_dahiya 0:fb8047b156bb 183 void *ptr = NULL;
rahul_dahiya 0:fb8047b156bb 184 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 185 // Note - no lock needed since malloc is thread safe
rahul_dahiya 0:fb8047b156bb 186
rahul_dahiya 0:fb8047b156bb 187 ptr = malloc(nmemb * size);
rahul_dahiya 0:fb8047b156bb 188 if (ptr != NULL) {
rahul_dahiya 0:fb8047b156bb 189 memset(ptr, 0, nmemb * size);
rahul_dahiya 0:fb8047b156bb 190 }
rahul_dahiya 0:fb8047b156bb 191 #else // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 192 ptr = __real__calloc_r(r, nmemb, size);
rahul_dahiya 0:fb8047b156bb 193 #endif // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 194 #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 195 mem_trace_mutex->lock();
rahul_dahiya 0:fb8047b156bb 196 mbed_mem_trace_calloc(ptr, nmemb, size, MBED_CALLER_ADDR());
rahul_dahiya 0:fb8047b156bb 197 mem_trace_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 198 #endif // #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 199 return ptr;
rahul_dahiya 0:fb8047b156bb 200 }
rahul_dahiya 0:fb8047b156bb 201
rahul_dahiya 0:fb8047b156bb 202 extern "C" void * __wrap__memalign_r(struct _reent * r, size_t alignment, size_t bytes) {
rahul_dahiya 0:fb8047b156bb 203 return __real__memalign_r(r, alignment, bytes);
rahul_dahiya 0:fb8047b156bb 204 }
rahul_dahiya 0:fb8047b156bb 205
rahul_dahiya 0:fb8047b156bb 206 #endif // if !defined(FEATURE_UVISOR)
rahul_dahiya 0:fb8047b156bb 207
rahul_dahiya 0:fb8047b156bb 208
rahul_dahiya 0:fb8047b156bb 209 /******************************************************************************/
rahul_dahiya 0:fb8047b156bb 210 /* ARMCC / IAR memory allocation wrappers */
rahul_dahiya 0:fb8047b156bb 211 /******************************************************************************/
rahul_dahiya 0:fb8047b156bb 212
rahul_dahiya 0:fb8047b156bb 213 #elif defined(TOOLCHAIN_ARM) || defined(__ICCARM__)
rahul_dahiya 0:fb8047b156bb 214
rahul_dahiya 0:fb8047b156bb 215 #if defined(TOOLCHAIN_ARM)
rahul_dahiya 0:fb8047b156bb 216 #define SUPER_MALLOC $Super$$malloc
rahul_dahiya 0:fb8047b156bb 217 #define SUB_MALLOC $Sub$$malloc
rahul_dahiya 0:fb8047b156bb 218 #define SUPER_REALLOC $Super$$realloc
rahul_dahiya 0:fb8047b156bb 219 #define SUB_REALLOC $Sub$$realloc
rahul_dahiya 0:fb8047b156bb 220 #define SUPER_CALLOC $Super$$calloc
rahul_dahiya 0:fb8047b156bb 221 #define SUB_CALLOC $Sub$$calloc
rahul_dahiya 0:fb8047b156bb 222 #define SUPER_FREE $Super$$free
rahul_dahiya 0:fb8047b156bb 223 #define SUB_FREE $Sub$$free
rahul_dahiya 0:fb8047b156bb 224 #elif defined(__ICCARM__)
rahul_dahiya 0:fb8047b156bb 225 #define SUPER_MALLOC $Super$$__iar_dlmalloc
rahul_dahiya 0:fb8047b156bb 226 #define SUB_MALLOC $Sub$$__iar_dlmalloc
rahul_dahiya 0:fb8047b156bb 227 #define SUPER_REALLOC $Super$$__iar_dlrealloc
rahul_dahiya 0:fb8047b156bb 228 #define SUB_REALLOC $Sub$$__iar_dlrealloc
rahul_dahiya 0:fb8047b156bb 229 #define SUPER_CALLOC $Super$$__iar_dlcalloc
rahul_dahiya 0:fb8047b156bb 230 #define SUB_CALLOC $Sub$$__iar_dlcalloc
rahul_dahiya 0:fb8047b156bb 231 #define SUPER_FREE $Super$$__iar_dlfree
rahul_dahiya 0:fb8047b156bb 232 #define SUB_FREE $Sub$$__iar_dlfree
rahul_dahiya 0:fb8047b156bb 233 #endif
rahul_dahiya 0:fb8047b156bb 234
rahul_dahiya 0:fb8047b156bb 235 /* Enable hooking of memory function only if tracing is also enabled */
rahul_dahiya 0:fb8047b156bb 236 #if defined(MBED_MEM_TRACING_ENABLED) || defined(MBED_HEAP_STATS_ENABLED)
rahul_dahiya 0:fb8047b156bb 237
rahul_dahiya 0:fb8047b156bb 238 extern "C" {
rahul_dahiya 0:fb8047b156bb 239 void *SUPER_MALLOC(size_t size);
rahul_dahiya 0:fb8047b156bb 240 void *SUPER_REALLOC(void *ptr, size_t size);
rahul_dahiya 0:fb8047b156bb 241 void *SUPER_CALLOC(size_t nmemb, size_t size);
rahul_dahiya 0:fb8047b156bb 242 void SUPER_FREE(void *ptr);
rahul_dahiya 0:fb8047b156bb 243 }
rahul_dahiya 0:fb8047b156bb 244
rahul_dahiya 0:fb8047b156bb 245 extern "C" void* SUB_MALLOC(size_t size) {
rahul_dahiya 0:fb8047b156bb 246 void *ptr = NULL;
rahul_dahiya 0:fb8047b156bb 247 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 248 malloc_stats_mutex->lock();
rahul_dahiya 0:fb8047b156bb 249 alloc_info_t *alloc_info = (alloc_info_t*)SUPER_MALLOC(size + sizeof(alloc_info_t));
rahul_dahiya 0:fb8047b156bb 250 if (alloc_info != NULL) {
rahul_dahiya 0:fb8047b156bb 251 alloc_info->size = size;
rahul_dahiya 0:fb8047b156bb 252 ptr = (void*)(alloc_info + 1);
rahul_dahiya 0:fb8047b156bb 253 heap_stats.current_size += size;
rahul_dahiya 0:fb8047b156bb 254 heap_stats.total_size += size;
rahul_dahiya 0:fb8047b156bb 255 heap_stats.alloc_cnt += 1;
rahul_dahiya 0:fb8047b156bb 256 if (heap_stats.current_size > heap_stats.max_size) {
rahul_dahiya 0:fb8047b156bb 257 heap_stats.max_size = heap_stats.current_size;
rahul_dahiya 0:fb8047b156bb 258 }
rahul_dahiya 0:fb8047b156bb 259 } else {
rahul_dahiya 0:fb8047b156bb 260 heap_stats.alloc_fail_cnt += 1;
rahul_dahiya 0:fb8047b156bb 261 }
rahul_dahiya 0:fb8047b156bb 262 malloc_stats_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 263 #else // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 264 ptr = SUPER_MALLOC(size);
rahul_dahiya 0:fb8047b156bb 265 #endif // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 266 #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 267 mem_trace_mutex->lock();
rahul_dahiya 0:fb8047b156bb 268 mbed_mem_trace_malloc(ptr, size, MBED_CALLER_ADDR());
rahul_dahiya 0:fb8047b156bb 269 mem_trace_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 270 #endif // #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 271 return ptr;
rahul_dahiya 0:fb8047b156bb 272 }
rahul_dahiya 0:fb8047b156bb 273
rahul_dahiya 0:fb8047b156bb 274 extern "C" void* SUB_REALLOC(void *ptr, size_t size) {
rahul_dahiya 0:fb8047b156bb 275 void *new_ptr = NULL;
rahul_dahiya 0:fb8047b156bb 276 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 277 // Note - no lock needed since malloc and free are thread safe
rahul_dahiya 0:fb8047b156bb 278
rahul_dahiya 0:fb8047b156bb 279 // Get old size
rahul_dahiya 0:fb8047b156bb 280 uint32_t old_size = 0;
rahul_dahiya 0:fb8047b156bb 281 if (ptr != NULL) {
rahul_dahiya 0:fb8047b156bb 282 alloc_info_t *alloc_info = ((alloc_info_t*)ptr) - 1;
rahul_dahiya 0:fb8047b156bb 283 old_size = alloc_info->size;
rahul_dahiya 0:fb8047b156bb 284 }
rahul_dahiya 0:fb8047b156bb 285
rahul_dahiya 0:fb8047b156bb 286 // Allocate space
rahul_dahiya 0:fb8047b156bb 287 if (size != 0) {
rahul_dahiya 0:fb8047b156bb 288 new_ptr = malloc(size);
rahul_dahiya 0:fb8047b156bb 289 }
rahul_dahiya 0:fb8047b156bb 290
rahul_dahiya 0:fb8047b156bb 291 // If the new buffer has been allocated copy the data to it
rahul_dahiya 0:fb8047b156bb 292 // and free the old buffer
rahul_dahiya 0:fb8047b156bb 293 if (new_ptr != NULL) {
rahul_dahiya 0:fb8047b156bb 294 uint32_t copy_size = (old_size < size) ? old_size : size;
rahul_dahiya 0:fb8047b156bb 295 memcpy(new_ptr, (void*)ptr, copy_size);
rahul_dahiya 0:fb8047b156bb 296 free(ptr);
rahul_dahiya 0:fb8047b156bb 297 }
rahul_dahiya 0:fb8047b156bb 298 #else // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 299 new_ptr = SUPER_REALLOC(ptr, size);
rahul_dahiya 0:fb8047b156bb 300 #endif // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 301 #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 302 mem_trace_mutex->lock();
rahul_dahiya 0:fb8047b156bb 303 mbed_mem_trace_realloc(new_ptr, ptr, size, MBED_CALLER_ADDR());
rahul_dahiya 0:fb8047b156bb 304 mem_trace_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 305 #endif // #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 306 return new_ptr;
rahul_dahiya 0:fb8047b156bb 307 }
rahul_dahiya 0:fb8047b156bb 308
rahul_dahiya 0:fb8047b156bb 309 extern "C" void *SUB_CALLOC(size_t nmemb, size_t size) {
rahul_dahiya 0:fb8047b156bb 310 void *ptr = NULL;
rahul_dahiya 0:fb8047b156bb 311 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 312 // Note - no lock needed since malloc is thread safe
rahul_dahiya 0:fb8047b156bb 313 ptr = malloc(nmemb * size);
rahul_dahiya 0:fb8047b156bb 314 if (ptr != NULL) {
rahul_dahiya 0:fb8047b156bb 315 memset(ptr, 0, nmemb * size);
rahul_dahiya 0:fb8047b156bb 316 }
rahul_dahiya 0:fb8047b156bb 317 #else // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 318 ptr = SUPER_CALLOC(nmemb, size);
rahul_dahiya 0:fb8047b156bb 319 #endif // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 320 #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 321 mem_trace_mutex->lock();
rahul_dahiya 0:fb8047b156bb 322 mbed_mem_trace_calloc(ptr, nmemb, size, MBED_CALLER_ADDR());
rahul_dahiya 0:fb8047b156bb 323 mem_trace_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 324 #endif // #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 325 return ptr;
rahul_dahiya 0:fb8047b156bb 326 }
rahul_dahiya 0:fb8047b156bb 327
rahul_dahiya 0:fb8047b156bb 328 extern "C" void SUB_FREE(void *ptr) {
rahul_dahiya 0:fb8047b156bb 329 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 330 malloc_stats_mutex->lock();
rahul_dahiya 0:fb8047b156bb 331 alloc_info_t *alloc_info = NULL;
rahul_dahiya 0:fb8047b156bb 332 if (ptr != NULL) {
rahul_dahiya 0:fb8047b156bb 333 alloc_info = ((alloc_info_t*)ptr) - 1;
rahul_dahiya 0:fb8047b156bb 334 heap_stats.current_size -= alloc_info->size;
rahul_dahiya 0:fb8047b156bb 335 heap_stats.alloc_cnt -= 1;
rahul_dahiya 0:fb8047b156bb 336 }
rahul_dahiya 0:fb8047b156bb 337 SUPER_FREE((void*)alloc_info);
rahul_dahiya 0:fb8047b156bb 338 malloc_stats_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 339 #else // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 340 SUPER_FREE(ptr);
rahul_dahiya 0:fb8047b156bb 341 #endif // #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 342 #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 343 mem_trace_mutex->lock();
rahul_dahiya 0:fb8047b156bb 344 mbed_mem_trace_free(ptr, MBED_CALLER_ADDR());
rahul_dahiya 0:fb8047b156bb 345 mem_trace_mutex->unlock();
rahul_dahiya 0:fb8047b156bb 346 #endif // #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 347 }
rahul_dahiya 0:fb8047b156bb 348
rahul_dahiya 0:fb8047b156bb 349 #endif // #if defined(MBED_MEM_TRACING_ENABLED) || defined(MBED_HEAP_STATS_ENABLED)
rahul_dahiya 0:fb8047b156bb 350
rahul_dahiya 0:fb8047b156bb 351 /******************************************************************************/
rahul_dahiya 0:fb8047b156bb 352 /* Allocation wrappers for other toolchains are not supported yet */
rahul_dahiya 0:fb8047b156bb 353 /******************************************************************************/
rahul_dahiya 0:fb8047b156bb 354
rahul_dahiya 0:fb8047b156bb 355 #else
rahul_dahiya 0:fb8047b156bb 356
rahul_dahiya 0:fb8047b156bb 357 #ifdef MBED_MEM_TRACING_ENABLED
rahul_dahiya 0:fb8047b156bb 358 #error Memory tracing is not supported with the current toolchain.
rahul_dahiya 0:fb8047b156bb 359 #endif
rahul_dahiya 0:fb8047b156bb 360
rahul_dahiya 0:fb8047b156bb 361 #ifdef MBED_HEAP_STATS_ENABLED
rahul_dahiya 0:fb8047b156bb 362 #error Heap statistics are not supported with the current toolchain.
rahul_dahiya 0:fb8047b156bb 363 #endif
rahul_dahiya 0:fb8047b156bb 364
rahul_dahiya 0:fb8047b156bb 365 #endif // #if defined(TOOLCHAIN_GCC)