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Commit | Line | Data |
---|---|---|
92a42be0 | 1 | // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s |
3157f602 | 2 | // UNSUPPORTED: darwin |
92a42be0 SL |
3 | #include <pthread.h> |
4 | #include <stdio.h> | |
5 | #include <stdlib.h> | |
6 | #include <signal.h> | |
7 | #include <sys/types.h> | |
8 | #include <sys/time.h> | |
9 | #include <unistd.h> | |
10 | #include <errno.h> | |
11 | ||
12 | volatile int X; | |
13 | ||
14 | static void handler(int sig) { | |
15 | (void)sig; | |
16 | if (X != 0) | |
17 | printf("bad"); | |
18 | } | |
19 | ||
20 | static void* thr(void *p) { | |
21 | return 0; | |
22 | } | |
23 | ||
24 | int main() { | |
25 | struct sigaction act = {}; | |
26 | act.sa_handler = &handler; | |
27 | if (sigaction(SIGPROF, &act, 0)) { | |
28 | perror("sigaction"); | |
29 | exit(1); | |
30 | } | |
31 | ||
32 | itimerval t; | |
33 | t.it_value.tv_sec = 0; | |
34 | t.it_value.tv_usec = 10; | |
35 | t.it_interval = t.it_value; | |
36 | if (setitimer(ITIMER_PROF, &t, 0)) { | |
37 | perror("setitimer"); | |
38 | exit(1); | |
39 | } | |
40 | ||
41 | for (int i = 0; i < 10000; i++) { | |
42 | pthread_t th; | |
43 | pthread_create(&th, 0, thr, 0); | |
44 | pthread_join(th, 0); | |
45 | } | |
46 | ||
47 | fprintf(stderr, "DONE\n"); | |
48 | return 0; | |
49 | } | |
50 | ||
51 | // CHECK-NOT: WARNING: ThreadSanitizer: | |
52 | // CHECK: DONE | |
53 | // CHECK-NOT: WARNING: ThreadSanitizer: |