test/asan/TestCases/waitid.cc

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