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
handler(int,siginfo_t *,void *)9 static void handler(int, siginfo_t*, void*) {
10 const char *str = "HELLO FROM SIGNAL\n";
11 write(2, str, strlen(str));
12 }
13
main()14 int main() {
15 struct sigaction act = {};
16 act.sa_sigaction = &handler;
17 sigaction(SIGPROF, &act, 0);
18 kill(getpid(), SIGPROF);
19 sleep(1); // let the signal handler run, can't use barrier in sig handler
20 fprintf(stderr, "DONE\n");
21 return 0;
22 }
23
24 // CHECK-NOT: WARNING: ThreadSanitizer
25 // CHECK: HELLO FROM SIGNAL
26 // CHECK: DONE
27
28