| // RUN: %check_clang_tidy %s bugprone-signal-handler %t \ |
| // RUN: -config='{CheckOptions: \ |
| // RUN: {bugprone-signal-handler.AsyncSafeFunctionSet: "minimal"}}' \ |
| // RUN: -- -isystem %clang_tidy_headers |
| |
| #include "signal.h" |
| #include "stdlib.h" |
| #include "string.h" |
| #include "unistd.h" |
| |
| void handler_bad1(int) { |
| _exit(0); |
| // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: standard function '_exit' may not be asynchronous-safe; calling it from a signal handler may be dangerous [bugprone-signal-handler] |
| } |
| |
| void handler_bad2(int) { |
| void *dst; |
| const void *src; |
| memcpy(dst, src, 10); |
| // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: standard function 'memcpy' may not be asynchronous-safe; calling it from a signal handler may be dangerous [bugprone-signal-handler] |
| } |
| |
| void handler_good(int) { |
| abort(); |
| _Exit(0); |
| quick_exit(0); |
| signal(0, SIG_DFL); |
| } |
| |
| void test(void) { |
| signal(SIGINT, handler_bad1); |
| signal(SIGINT, handler_bad2); |
| signal(SIGINT, handler_good); |
| } |