compiler-rt/test/tsan/setuid2.c

   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: target=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
  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