1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include <csignal> 17 #include <iostream> 18 19 extern "C" void __gcov_dump(); 20 21 using namespace std; sighandler(int signo)22static void sighandler(int signo) 23 { 24 cout << "######gcov_dump_start" << endl; 25 __gcov_dump(); 26 cout << "######gcov_dump_end" << endl; 27 } 28 ctor()29__attribute__ ((constructor)) static void ctor() 30 { 31 int sigs[] = { 32 SIGTTIN 33 }; 34 int i; 35 struct sigaction sa; 36 sa.sa_handler = sighandler; 37 sigemptyset(&sa.sa_mask); 38 sa.sa_flags = SA_RESTART; 39 for (i = 0; i < sizeof(sigs) / sizeof(sigs[0]); ++i) { 40 if (sigaction(sigs[i], &sa, nullptr) == -1) { 41 cout << "Could not set signal handler" << endl; 42 } 43 } 44 } 45