| 1 | // RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s |
|---|---|
| 2 | #include <stdio.h> |
| 3 | #include <stdlib.h> |
| 4 | #include <signal.h> |
| 5 | #include <string.h> |
| 6 | #include <sys/types.h> |
| 7 | #include <unistd.h> |
| 8 | |
| 9 | static void handler(int, siginfo_t*, void*) { |
| 10 | const char *str = "HELLO FROM SIGNAL\n"; |
| 11 | write(fd: 2, buf: str, n: strlen(s: str)); |
| 12 | } |
| 13 | |
| 14 | int main() { |
| 15 | struct sigaction act = {}; |
| 16 | act.sa_sigaction = &handler; |
| 17 | sigaction(SIGPROF, act: &act, oact: 0); |
| 18 | kill(pid: getpid(), SIGPROF); |
| 19 | sleep(seconds: 1); // let the signal handler run, can't use barrier in sig handler |
| 20 | fprintf(stderr, format: "DONE\n"); |
| 21 | return 0; |
| 22 | } |
| 23 | |
| 24 | // CHECK-NOT: WARNING: ThreadSanitizer |
| 25 | // CHECK: HELLO FROM SIGNAL |
| 26 | // CHECK: DONE |
| 27 | |
| 28 |