src/compiler-rt/test/asan/TestCases/Posix/wait4.cc

   1 // RUN: %clangxx_asan -DWAIT4 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   2 // RUN: %clangxx_asan -DWAIT4 -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
   3
   4 // RUN: %clangxx_asan -DWAIT4_RUSAGE -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   5 // RUN: %clangxx_asan -DWAIT4_RUSAGE -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
   6
   7 // XFAIL: android
   8
   9 #include <assert.h>
  10 #include <sys/wait.h>
  11 #include <unistd.h>
  12
  13 int main(int argc, char **argv) {
  14   // This test passes on some versions of Android NDK and fails on other.
  15   // https://code.google.com/p/memory-sanitizer/issues/detail?id=64
  16   // Make it fail unconditionally on Android.
  17 #ifdef __ANDROID__
  18   return 0;
  19 #endif
  20
  21   pid_t pid = fork();
  22   if (pid) { // parent
  23     int x[3];
  24     int *status = x + argc * 3;
  25     int res;
  26 #if defined(WAIT4)
  27     res = wait4(pid, status, WNOHANG, NULL);
  28 #elif defined(WAIT4_RUSAGE)
  29     struct rusage *ru = (struct rusage*)(x + argc * 3);
  30     int good_status;
  31     res = wait4(pid, &good_status, WNOHANG, ru);
  32 #endif
  33     // CHECK: stack-buffer-overflow
  34     // CHECK: {{WRITE of size .* at 0x.* thread T0}}
  35     // CHECK: {{in .*wait}}
  36     // CHECK: {{in main .*wait4.cc:}}
  37     // CHECK: is located in stack of thread T0 at offset
  38     // CHECK: {{in main}}
  39     return res == -1 ? 1 : 0;
  40   }
  41   // child
  42   return 0;
  43 }