utest_stack_trace.cpp

00001 /****************************************************************************
00002  * Copyright (c) 2016, ARM Limited, All Rights Reserved
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 #ifdef UTEST_STACK_TRACE
00018  
00019 #include "greentea-client/test_env.h"
00020 #include "mbed.h"
00021 #include "utest/utest.h"
00022 #include "unity/unity.h"
00023 #include "utest/utest_stack_trace.h"
00024 #include "utest/utest_serial.h"
00025 
00026 using namespace utest::v1;
00027 
00028 std::string utest_trace[UTEST_MAX_BACKTRACE];
00029 
00030 static unsigned trace_index = 0;
00031 static unsigned total_calls = 0;
00032 
00033 void utest_trace_initialise()
00034 {
00035     total_calls = 0;
00036     trace_index = 0;
00037     for(unsigned i = 0; i < UTEST_MAX_BACKTRACE; i++) {
00038         utest_trace[i].clear();        
00039     }
00040 }
00041 
00042 void utest_add_to_trace(char *func_name)
00043 {    
00044     utest_trace[trace_index] = std::string(func_name);   
00045     trace_index = (trace_index + 1 == UTEST_MAX_BACKTRACE) ? 0 : trace_index + 1;
00046     total_calls ++;
00047 }
00048 
00049 void utest_dump_trace()
00050 {
00051     unsigned current = (trace_index == 0) ? UTEST_MAX_BACKTRACE - 1 : trace_index - 1;
00052 
00053     utest_printf("==================================================================\n");
00054     utest_printf("Utest back trace: Total calls logged = %u.\n", total_calls);
00055     utest_printf("==================================================================\n");
00056     while (current != trace_index) {
00057     
00058         utest_printf("%u > %s\n", current, utest_trace[current].c_str());
00059         current = (current == 0) ? UTEST_MAX_BACKTRACE - 1 : current - 1;
00060     }
00061     utest_printf("==================================================================\n");
00062 }
00063 
00064 #endif