EL4121 Embedded System / mbed-os

mbed-os

Dependents:   cobaLCDJoyMotor_Thread odometry_omni_3roda_v3 odometry_omni_3roda_v1 odometry_omni_3roda_v2 ... more

platform/mbed_mem_trace.c@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 /* mbed Microcontroller Library
be_bryan 0:b74591d5ab33 2 * Copyright (c) 2006-2016 ARM Limited
be_bryan 0:b74591d5ab33 3 *
be_bryan 0:b74591d5ab33 4 * Licensed under the Apache License, Version 2.0 (the "License");
be_bryan 0:b74591d5ab33 5 * you may not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 6 * You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 7 *
be_bryan 0:b74591d5ab33 8 * http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 9 *
be_bryan 0:b74591d5ab33 10 * Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 11 * distributed under the License is distributed on an "AS IS" BASIS,
be_bryan 0:b74591d5ab33 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 13 * See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 14 * limitations under the License.
be_bryan 0:b74591d5ab33 15 */
be_bryan 0:b74591d5ab33 16
be_bryan 0:b74591d5ab33 17 #include <stdlib.h>
be_bryan 0:b74591d5ab33 18 #include <stdarg.h>
be_bryan 0:b74591d5ab33 19 #include <stdio.h>
be_bryan 0:b74591d5ab33 20 #include "platform/mbed_mem_trace.h"
be_bryan 0:b74591d5ab33 21 #include "platform/mbed_critical.h"
be_bryan 0:b74591d5ab33 22
be_bryan 0:b74591d5ab33 23 /******************************************************************************
be_bryan 0:b74591d5ab33 24 * Internal variables, functions and helpers
be_bryan 0:b74591d5ab33 25 *****************************************************************************/
be_bryan 0:b74591d5ab33 26
be_bryan 0:b74591d5ab33 27 /* The callback function that will be called after a traced memory operations finishes. */
be_bryan 0:b74591d5ab33 28 static mbed_mem_trace_cb_t mem_trace_cb;
be_bryan 0:b74591d5ab33 29 /* 'trave_level' guards "trace inside trace" situations (for example, the implementation
be_bryan 0:b74591d5ab33 30 * of realloc() might call malloc() internally, and since malloc() is also traced, this could
be_bryan 0:b74591d5ab33 31 * result in two calls to the callback function instead of one. */
be_bryan 0:b74591d5ab33 32 static uint8_t trace_level;
be_bryan 0:b74591d5ab33 33
be_bryan 0:b74591d5ab33 34 /******************************************************************************
be_bryan 0:b74591d5ab33 35 * Public interface
be_bryan 0:b74591d5ab33 36 *****************************************************************************/
be_bryan 0:b74591d5ab33 37
be_bryan 0:b74591d5ab33 38 void mbed_mem_trace_set_callback(mbed_mem_trace_cb_t cb) {
be_bryan 0:b74591d5ab33 39 mem_trace_cb = cb;
be_bryan 0:b74591d5ab33 40 }
be_bryan 0:b74591d5ab33 41
be_bryan 0:b74591d5ab33 42 void *mbed_mem_trace_malloc(void *res, size_t size, void *caller) {
be_bryan 0:b74591d5ab33 43 if (mem_trace_cb) {
be_bryan 0:b74591d5ab33 44 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
be_bryan 0:b74591d5ab33 45 mem_trace_cb(MBED_MEM_TRACE_MALLOC, res, caller, size);
be_bryan 0:b74591d5ab33 46 }
be_bryan 0:b74591d5ab33 47 core_util_atomic_decr_u8(&trace_level, 1);
be_bryan 0:b74591d5ab33 48 }
be_bryan 0:b74591d5ab33 49 return res;
be_bryan 0:b74591d5ab33 50 }
be_bryan 0:b74591d5ab33 51
be_bryan 0:b74591d5ab33 52 void *mbed_mem_trace_realloc(void *res, void *ptr, size_t size, void *caller) {
be_bryan 0:b74591d5ab33 53 if (mem_trace_cb) {
be_bryan 0:b74591d5ab33 54 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
be_bryan 0:b74591d5ab33 55 mem_trace_cb(MBED_MEM_TRACE_REALLOC, res, caller, ptr, size);
be_bryan 0:b74591d5ab33 56 }
be_bryan 0:b74591d5ab33 57 core_util_atomic_decr_u8(&trace_level, 1);
be_bryan 0:b74591d5ab33 58 }
be_bryan 0:b74591d5ab33 59 return res;
be_bryan 0:b74591d5ab33 60 }
be_bryan 0:b74591d5ab33 61
be_bryan 0:b74591d5ab33 62 void *mbed_mem_trace_calloc(void *res, size_t num, size_t size, void *caller) {
be_bryan 0:b74591d5ab33 63 if (mem_trace_cb) {
be_bryan 0:b74591d5ab33 64 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
be_bryan 0:b74591d5ab33 65 mem_trace_cb(MBED_MEM_TRACE_CALLOC, res, caller, num, size);
be_bryan 0:b74591d5ab33 66 }
be_bryan 0:b74591d5ab33 67 core_util_atomic_decr_u8(&trace_level, 1);
be_bryan 0:b74591d5ab33 68 }
be_bryan 0:b74591d5ab33 69 return res;
be_bryan 0:b74591d5ab33 70 }
be_bryan 0:b74591d5ab33 71
be_bryan 0:b74591d5ab33 72 void mbed_mem_trace_free(void *ptr, void *caller) {
be_bryan 0:b74591d5ab33 73 if (mem_trace_cb) {
be_bryan 0:b74591d5ab33 74 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
be_bryan 0:b74591d5ab33 75 mem_trace_cb(MBED_MEM_TRACE_FREE, NULL, caller, ptr);
be_bryan 0:b74591d5ab33 76 }
be_bryan 0:b74591d5ab33 77 core_util_atomic_decr_u8(&trace_level, 1);
be_bryan 0:b74591d5ab33 78 }
be_bryan 0:b74591d5ab33 79 }
be_bryan 0:b74591d5ab33 80
be_bryan 0:b74591d5ab33 81 void mbed_mem_trace_default_callback(uint8_t op, void *res, void *caller, ...) {
be_bryan 0:b74591d5ab33 82 va_list va;
be_bryan 0:b74591d5ab33 83 size_t temp_s1, temp_s2;
be_bryan 0:b74591d5ab33 84 void *temp_ptr;
be_bryan 0:b74591d5ab33 85
be_bryan 0:b74591d5ab33 86 va_start(va, caller);
be_bryan 0:b74591d5ab33 87 switch(op) {
be_bryan 0:b74591d5ab33 88 case MBED_MEM_TRACE_MALLOC:
be_bryan 0:b74591d5ab33 89 temp_s1 = va_arg(va, size_t);
be_bryan 0:b74591d5ab33 90 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "m:%p;%p-%u\n", res, caller, temp_s1);
be_bryan 0:b74591d5ab33 91 break;
be_bryan 0:b74591d5ab33 92
be_bryan 0:b74591d5ab33 93 case MBED_MEM_TRACE_REALLOC:
be_bryan 0:b74591d5ab33 94 temp_ptr = va_arg(va, void*);
be_bryan 0:b74591d5ab33 95 temp_s1 = va_arg(va, size_t);
be_bryan 0:b74591d5ab33 96 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "r:%p;%p-%p;%u\n", res, caller, temp_ptr, temp_s1);
be_bryan 0:b74591d5ab33 97 break;
be_bryan 0:b74591d5ab33 98
be_bryan 0:b74591d5ab33 99 case MBED_MEM_TRACE_CALLOC:
be_bryan 0:b74591d5ab33 100 temp_s1 = va_arg(va, size_t);
be_bryan 0:b74591d5ab33 101 temp_s2 = va_arg(va, size_t);
be_bryan 0:b74591d5ab33 102 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "c:%p;%p-%u;%u\n", res, caller, temp_s1, temp_s2);
be_bryan 0:b74591d5ab33 103 break;
be_bryan 0:b74591d5ab33 104
be_bryan 0:b74591d5ab33 105 case MBED_MEM_TRACE_FREE:
be_bryan 0:b74591d5ab33 106 temp_ptr = va_arg(va, void*);
be_bryan 0:b74591d5ab33 107 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "f:%p;%p-%p\n", res, caller, temp_ptr);
be_bryan 0:b74591d5ab33 108 break;
be_bryan 0:b74591d5ab33 109
be_bryan 0:b74591d5ab33 110 default:
be_bryan 0:b74591d5ab33 111 printf("?\n");
be_bryan 0:b74591d5ab33 112 }
be_bryan 0:b74591d5ab33 113 va_end(va);
be_bryan 0:b74591d5ab33 114 }
be_bryan 0:b74591d5ab33 115