| // RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <signal.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| static void handler(int, siginfo_t*, void*) { |
| const char *str = "HELLO FROM SIGNAL\n"; |
| write(2, str, strlen(str)); |
| } |
| |
| int main() { |
| struct sigaction act = {}; |
| act.sa_sigaction = &handler; |
| sigaction(SIGPROF, &act, 0); |
| kill(getpid(), SIGPROF); |
| sleep(1); // let the signal handler run, can't use barrier in sig handler |
| fprintf(stderr, "DONE\n"); |
| return 0; |
| } |
| |
| // CHECK-NOT: WARNING: ThreadSanitizer |
| // CHECK: HELLO FROM SIGNAL |
| // CHECK: DONE |
| |
