1 // RUN: %clang_tsan -O1 %s -o %t && %env_tsan_opts=flush_memory_ms=1:memory_limit_mb=1 %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 #include <time.h>
12 
13 // Test that setuid call works in presence of stoptheworld.
14 
main()15 int main() {
16   unsigned long long tp0, tp1;
17   tp0 = monotonic_clock_ns();
18   tp1 = monotonic_clock_ns();
19   while (tp1 - tp0 < 3 * 1000000000ull) {
20     tp1 = monotonic_clock_ns();
21     setuid(0);
22   }
23   fprintf(stderr, "DONE\n");
24   return 0;
25 }
26 
27 // CHECK: DONE
28