Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/platform/mbed_mem_trace.c@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

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marcozecchini 0:9fca2b23d0ba 1 /* mbed Microcontroller Library
marcozecchini 0:9fca2b23d0ba 2 * Copyright (c) 2006-2016 ARM Limited
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * Licensed under the Apache License, Version 2.0 (the "License");
marcozecchini 0:9fca2b23d0ba 5 * you may not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 6 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 7 *
marcozecchini 0:9fca2b23d0ba 8 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 9 *
marcozecchini 0:9fca2b23d0ba 10 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 11 * distributed under the License is distributed on an "AS IS" BASIS,
marcozecchini 0:9fca2b23d0ba 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 13 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 14 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 15 */
marcozecchini 0:9fca2b23d0ba 16
marcozecchini 0:9fca2b23d0ba 17 #include <stdlib.h>
marcozecchini 0:9fca2b23d0ba 18 #include <stdarg.h>
marcozecchini 0:9fca2b23d0ba 19 #include <stdio.h>
marcozecchini 0:9fca2b23d0ba 20 #include "platform/mbed_mem_trace.h"
marcozecchini 0:9fca2b23d0ba 21 #include "platform/mbed_critical.h"
marcozecchini 0:9fca2b23d0ba 22
marcozecchini 0:9fca2b23d0ba 23 /******************************************************************************
marcozecchini 0:9fca2b23d0ba 24 * Internal variables, functions and helpers
marcozecchini 0:9fca2b23d0ba 25 *****************************************************************************/
marcozecchini 0:9fca2b23d0ba 26
marcozecchini 0:9fca2b23d0ba 27 /* The callback function that will be called after a traced memory operations finishes. */
marcozecchini 0:9fca2b23d0ba 28 static mbed_mem_trace_cb_t mem_trace_cb;
marcozecchini 0:9fca2b23d0ba 29 /* 'trave_level' guards "trace inside trace" situations (for example, the implementation
marcozecchini 0:9fca2b23d0ba 30 * of realloc() might call malloc() internally, and since malloc() is also traced, this could
marcozecchini 0:9fca2b23d0ba 31 * result in two calls to the callback function instead of one. */
marcozecchini 0:9fca2b23d0ba 32 static uint8_t trace_level;
marcozecchini 0:9fca2b23d0ba 33
marcozecchini 0:9fca2b23d0ba 34 /******************************************************************************
marcozecchini 0:9fca2b23d0ba 35 * Public interface
marcozecchini 0:9fca2b23d0ba 36 *****************************************************************************/
marcozecchini 0:9fca2b23d0ba 37
marcozecchini 0:9fca2b23d0ba 38 void mbed_mem_trace_set_callback(mbed_mem_trace_cb_t cb) {
marcozecchini 0:9fca2b23d0ba 39 mem_trace_cb = cb;
marcozecchini 0:9fca2b23d0ba 40 }
marcozecchini 0:9fca2b23d0ba 41
marcozecchini 0:9fca2b23d0ba 42 void *mbed_mem_trace_malloc(void *res, size_t size, void *caller) {
marcozecchini 0:9fca2b23d0ba 43 if (mem_trace_cb) {
marcozecchini 0:9fca2b23d0ba 44 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
marcozecchini 0:9fca2b23d0ba 45 mem_trace_cb(MBED_MEM_TRACE_MALLOC, res, caller, size);
marcozecchini 0:9fca2b23d0ba 46 }
marcozecchini 0:9fca2b23d0ba 47 core_util_atomic_decr_u8(&trace_level, 1);
marcozecchini 0:9fca2b23d0ba 48 }
marcozecchini 0:9fca2b23d0ba 49 return res;
marcozecchini 0:9fca2b23d0ba 50 }
marcozecchini 0:9fca2b23d0ba 51
marcozecchini 0:9fca2b23d0ba 52 void *mbed_mem_trace_realloc(void *res, void *ptr, size_t size, void *caller) {
marcozecchini 0:9fca2b23d0ba 53 if (mem_trace_cb) {
marcozecchini 0:9fca2b23d0ba 54 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
marcozecchini 0:9fca2b23d0ba 55 mem_trace_cb(MBED_MEM_TRACE_REALLOC, res, caller, ptr, size);
marcozecchini 0:9fca2b23d0ba 56 }
marcozecchini 0:9fca2b23d0ba 57 core_util_atomic_decr_u8(&trace_level, 1);
marcozecchini 0:9fca2b23d0ba 58 }
marcozecchini 0:9fca2b23d0ba 59 return res;
marcozecchini 0:9fca2b23d0ba 60 }
marcozecchini 0:9fca2b23d0ba 61
marcozecchini 0:9fca2b23d0ba 62 void *mbed_mem_trace_calloc(void *res, size_t num, size_t size, void *caller) {
marcozecchini 0:9fca2b23d0ba 63 if (mem_trace_cb) {
marcozecchini 0:9fca2b23d0ba 64 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
marcozecchini 0:9fca2b23d0ba 65 mem_trace_cb(MBED_MEM_TRACE_CALLOC, res, caller, num, size);
marcozecchini 0:9fca2b23d0ba 66 }
marcozecchini 0:9fca2b23d0ba 67 core_util_atomic_decr_u8(&trace_level, 1);
marcozecchini 0:9fca2b23d0ba 68 }
marcozecchini 0:9fca2b23d0ba 69 return res;
marcozecchini 0:9fca2b23d0ba 70 }
marcozecchini 0:9fca2b23d0ba 71
marcozecchini 0:9fca2b23d0ba 72 void mbed_mem_trace_free(void *ptr, void *caller) {
marcozecchini 0:9fca2b23d0ba 73 if (mem_trace_cb) {
marcozecchini 0:9fca2b23d0ba 74 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
marcozecchini 0:9fca2b23d0ba 75 mem_trace_cb(MBED_MEM_TRACE_FREE, NULL, caller, ptr);
marcozecchini 0:9fca2b23d0ba 76 }
marcozecchini 0:9fca2b23d0ba 77 core_util_atomic_decr_u8(&trace_level, 1);
marcozecchini 0:9fca2b23d0ba 78 }
marcozecchini 0:9fca2b23d0ba 79 }
marcozecchini 0:9fca2b23d0ba 80
marcozecchini 0:9fca2b23d0ba 81 void mbed_mem_trace_default_callback(uint8_t op, void *res, void *caller, ...) {
marcozecchini 0:9fca2b23d0ba 82 va_list va;
marcozecchini 0:9fca2b23d0ba 83 size_t temp_s1, temp_s2;
marcozecchini 0:9fca2b23d0ba 84 void *temp_ptr;
marcozecchini 0:9fca2b23d0ba 85
marcozecchini 0:9fca2b23d0ba 86 va_start(va, caller);
marcozecchini 0:9fca2b23d0ba 87 switch(op) {
marcozecchini 0:9fca2b23d0ba 88 case MBED_MEM_TRACE_MALLOC:
marcozecchini 0:9fca2b23d0ba 89 temp_s1 = va_arg(va, size_t);
marcozecchini 0:9fca2b23d0ba 90 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "m:%p;%p-%u\n", res, caller, temp_s1);
marcozecchini 0:9fca2b23d0ba 91 break;
marcozecchini 0:9fca2b23d0ba 92
marcozecchini 0:9fca2b23d0ba 93 case MBED_MEM_TRACE_REALLOC:
marcozecchini 0:9fca2b23d0ba 94 temp_ptr = va_arg(va, void*);
marcozecchini 0:9fca2b23d0ba 95 temp_s1 = va_arg(va, size_t);
marcozecchini 0:9fca2b23d0ba 96 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "r:%p;%p-%p;%u\n", res, caller, temp_ptr, temp_s1);
marcozecchini 0:9fca2b23d0ba 97 break;
marcozecchini 0:9fca2b23d0ba 98
marcozecchini 0:9fca2b23d0ba 99 case MBED_MEM_TRACE_CALLOC:
marcozecchini 0:9fca2b23d0ba 100 temp_s1 = va_arg(va, size_t);
marcozecchini 0:9fca2b23d0ba 101 temp_s2 = va_arg(va, size_t);
marcozecchini 0:9fca2b23d0ba 102 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "c:%p;%p-%u;%u\n", res, caller, temp_s1, temp_s2);
marcozecchini 0:9fca2b23d0ba 103 break;
marcozecchini 0:9fca2b23d0ba 104
marcozecchini 0:9fca2b23d0ba 105 case MBED_MEM_TRACE_FREE:
marcozecchini 0:9fca2b23d0ba 106 temp_ptr = va_arg(va, void*);
marcozecchini 0:9fca2b23d0ba 107 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "f:%p;%p-%p\n", res, caller, temp_ptr);
marcozecchini 0:9fca2b23d0ba 108 break;
marcozecchini 0:9fca2b23d0ba 109
marcozecchini 0:9fca2b23d0ba 110 default:
marcozecchini 0:9fca2b23d0ba 111 printf("?\n");
marcozecchini 0:9fca2b23d0ba 112 }
marcozecchini 0:9fca2b23d0ba 113 va_end(va);
marcozecchini 0:9fca2b23d0ba 114 }
marcozecchini 0:9fca2b23d0ba 115