1 /* 2 * Copyright (c) 2022 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 #ifndef DFX_LOG_BACKTRACE_H 16 #define DFX_LOG_BACKTRACE_H 17 18 #define GenHookFunc(GenFuncName, RealHookFunc, FuncName, RealFuncName) \ 19 static void GenFuncName(void) \ 20 { \ 21 RealFuncName = (RealHookFunc)dlsym(RTLD_NEXT, FuncName); \ 22 if (RealFuncName != NULL) { \ 23 return; \ 24 } \ 25 LOGE("Failed to find hooked %s use RTLD_NEXT\n", FuncName); \ 26 RealFuncName = (RealHookFunc)dlsym(RTLD_DEFAULT, FuncName); \ 27 if (RealFuncName != NULL) { \ 28 return; \ 29 } \ 30 LOGE("Failed to find hooked %s use RTLD_DEFAULT\n", FuncName); \ 31 } 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 void LogBacktrace(void); 37 #ifdef __cplusplus 38 } 39 #endif 40 #endif 41