compiler-rt/test/asan/TestCases/Posix/wait3.cpp

   1 // RUN: %clangxx_asan -DWAIT3 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   2 // RUN: %clangxx_asan -DWAIT3 -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
   3
   4 // RUN: %clangxx_asan -DWAIT3_RUSAGE -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   5 // RUN: %clangxx_asan -DWAIT3_RUSAGE -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
   6
   7 // UNSUPPORTED: android,darwin
   8
   9 #include <assert.h>
  10 #include <sys/wait.h>
  11 #include <unistd.h>
  12
  13 int main(int argc, char **argv) {
  14   pid_t pid = fork();
  15   if (pid) { // parent
  16     int x[3];
  17     int *status = x + argc * 3;
  18     int res;
  19 #if defined(WAIT3)
  20     res = wait3(status, WNOHANG, NULL);
  21 #elif defined(WAIT3_RUSAGE)
  22     struct rusage *ru = (struct rusage*)(x + argc * 3);
  23     int good_status;
  24     res = wait3(&good_status, WNOHANG, ru);
  25 #endif
  26     // CHECK: stack-buffer-overflow
  27     // CHECK: {{WRITE of size .* at 0x.* thread T0}}
  28     // CHECK: {{in .*wait}}
  29     // CHECK: {{in main .*wait3.cpp:}}
  30     // CHECK: is located in stack of thread T0 at offset
  31     // CHECK: {{in main}}
  32     return res == -1 ? 1 : 0;
  33   }
  34   // child
  35   return 0;
  36 }