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

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