1*bcaeed49SFangrui Song // RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2*bcaeed49SFangrui Song #include <stdio.h>
3*bcaeed49SFangrui Song #include <stdlib.h>
4*bcaeed49SFangrui Song #include <signal.h>
5*bcaeed49SFangrui Song #include <string.h>
6*bcaeed49SFangrui Song #include <sys/types.h>
7*bcaeed49SFangrui Song #include <unistd.h>
8*bcaeed49SFangrui Song
handler(int,siginfo_t *,void *)9*bcaeed49SFangrui Song static void handler(int, siginfo_t*, void*) {
10*bcaeed49SFangrui Song const char *str = "HELLO FROM SIGNAL\n";
11*bcaeed49SFangrui Song write(2, str, strlen(str));
12*bcaeed49SFangrui Song }
13*bcaeed49SFangrui Song
main()14*bcaeed49SFangrui Song int main() {
15*bcaeed49SFangrui Song struct sigaction act = {};
16*bcaeed49SFangrui Song act.sa_sigaction = &handler;
17*bcaeed49SFangrui Song sigaction(SIGPROF, &act, 0);
18*bcaeed49SFangrui Song kill(getpid(), SIGPROF);
19*bcaeed49SFangrui Song sleep(1); // let the signal handler run, can't use barrier in sig handler
20*bcaeed49SFangrui Song fprintf(stderr, "DONE\n");
21*bcaeed49SFangrui Song return 0;
22*bcaeed49SFangrui Song }
23*bcaeed49SFangrui Song
24*bcaeed49SFangrui Song // CHECK-NOT: WARNING: ThreadSanitizer
25*bcaeed49SFangrui Song // CHECK: HELLO FROM SIGNAL
26*bcaeed49SFangrui Song // CHECK: DONE
27*bcaeed49SFangrui Song
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