1 // RUN: %check_clang_tidy %s bugprone-signal-handler %t \ 2 // RUN: -config='{CheckOptions: \ 3 // RUN: [{key: bugprone-signal-handler.AsyncSafeFunctionSet, value: "minimal"}]}' \ 4 // RUN: -- -isystem %S/Inputs/Headers 5 6 #include "signal.h" 7 #include "stdlib.h" 8 #include "string.h" 9 #include "unistd.h" 10 handler_bad1(int)11void handler_bad1(int) { 12 _exit(0); 13 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: '_exit' may not be asynchronous-safe; calling it from a signal handler may be dangerous [bugprone-signal-handler] 14 } 15 handler_bad2(void * dst,const void * src)16void handler_bad2(void *dst, const void *src) { 17 memcpy(dst, src, 10); 18 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'memcpy' may not be asynchronous-safe; calling it from a signal handler may be dangerous [bugprone-signal-handler] 19 } 20 handler_good(int)21void handler_good(int) { 22 abort(); 23 _Exit(0); 24 quick_exit(0); 25 signal(0, SIG_DFL); 26 } 27 test()28void test() { 29 signal(SIGINT, handler_bad1); 30 signal(SIGINT, handler_bad2); 31 signal(SIGINT, handler_good); 32 } 33