RTC auf true
platform/mbed_mem_trace.cpp
- Committer:
- kevman
- Date:
- 2018-11-28
- Revision:
- 0:38ceb79fef03
File content as of revision 0:38ceb79fef03:
/* mbed Microcontroller Library * Copyright (c) 2006-2016 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <stdlib.h> #include <stdarg.h> #include <stdio.h> #include "platform/mbed_mem_trace.h" #include "platform/mbed_critical.h" #include "platform/SingletonPtr.h" #include "platform/PlatformMutex.h" /****************************************************************************** * Internal variables, functions and helpers *****************************************************************************/ /* The callback function that will be called after a traced memory operations finishes. */ static mbed_mem_trace_cb_t mem_trace_cb; /* 'trace_lock_count' guards "trace inside trace" situations (for example, the implementation * of realloc() might call malloc() internally, and since malloc() is also traced, this could * result in two calls to the callback function instead of one. */ static uint8_t trace_lock_count; static SingletonPtr<PlatformMutex> mem_trace_mutex; #define TRACE_FIRST_LOCK() (trace_lock_count < 2) /****************************************************************************** * Public interface *****************************************************************************/ void mbed_mem_trace_set_callback(mbed_mem_trace_cb_t cb) { mem_trace_cb = cb; } void mbed_mem_trace_lock() { mem_trace_mutex->lock(); trace_lock_count++; } void mbed_mem_trace_unlock() { trace_lock_count--; mem_trace_mutex->unlock(); } void *mbed_mem_trace_malloc(void *res, size_t size, void *caller) { if (mem_trace_cb) { if (TRACE_FIRST_LOCK()) { mem_trace_cb(MBED_MEM_TRACE_MALLOC, res, caller, size); } } return res; } void *mbed_mem_trace_realloc(void *res, void *ptr, size_t size, void *caller) { if (mem_trace_cb) { if (TRACE_FIRST_LOCK()) { mem_trace_cb(MBED_MEM_TRACE_REALLOC, res, caller, ptr, size); } } return res; } void *mbed_mem_trace_calloc(void *res, size_t num, size_t size, void *caller) { if (mem_trace_cb) { if (TRACE_FIRST_LOCK()) { mem_trace_cb(MBED_MEM_TRACE_CALLOC, res, caller, num, size); } } return res; } void mbed_mem_trace_free(void *ptr, void *caller) { if (mem_trace_cb) { if (TRACE_FIRST_LOCK()) { mem_trace_cb(MBED_MEM_TRACE_FREE, NULL, caller, ptr); } } } void mbed_mem_trace_default_callback(uint8_t op, void *res, void *caller, ...) { va_list va; size_t temp_s1, temp_s2; void *temp_ptr; va_start(va, caller); switch (op) { case MBED_MEM_TRACE_MALLOC: temp_s1 = va_arg(va, size_t); printf(MBED_MEM_DEFAULT_TRACER_PREFIX "m:%p;%p-%u\n", res, caller, temp_s1); break; case MBED_MEM_TRACE_REALLOC: temp_ptr = va_arg(va, void *); temp_s1 = va_arg(va, size_t); printf(MBED_MEM_DEFAULT_TRACER_PREFIX "r:%p;%p-%p;%u\n", res, caller, temp_ptr, temp_s1); break; case MBED_MEM_TRACE_CALLOC: temp_s1 = va_arg(va, size_t); temp_s2 = va_arg(va, size_t); printf(MBED_MEM_DEFAULT_TRACER_PREFIX "c:%p;%p-%u;%u\n", res, caller, temp_s1, temp_s2); break; case MBED_MEM_TRACE_FREE: temp_ptr = va_arg(va, void *); printf(MBED_MEM_DEFAULT_TRACER_PREFIX "f:%p;%p-%p\n", res, caller, temp_ptr); break; default: printf("?\n"); } va_end(va); }