1 // RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2 //
3 // setuid(0) hangs on powerpc64 big endian.  When this is fixed remove
4 // the unsupported flag.
5 // https://llvm.org/bugs/show_bug.cgi?id=25799
6 //
7 // UNSUPPORTED: powerpc64-unknown-linux-gnu
8 #include "test.h"
9 #include <sys/types.h>
10 #include <unistd.h>
11 
12 // Setuid call used to hang because the background tsan thread did not handle
13 // SIGSETXID signal. Note that we don't care whether setuid call succeeds
14 // or not.
15 
thread(void * arg)16 static void *thread(void *arg) {
17   (void)arg;
18   sleep(1);
19   return 0;
20 }
21 
main()22 int main() {
23   // Create another thread just for completeness of the picture.
24   pthread_t th;
25   pthread_create(&th, 0, thread, 0);
26   setuid(0);
27   pthread_join(th, 0);
28   fprintf(stderr, "DONE\n");
29   return 0;
30 }
31 
32 // CHECK: DONE
33