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

   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 // UNSUPPORTED: darwin, aarch64
   5
   6 #include <assert.h>
   7 #include <sys/wait.h>
   8 #include <unistd.h>
   9 #include <signal.h>
  10
  11 int main(int argc, char **argv) {
  12   pid_t pid = fork();
  13   if (pid) { // parent
  14     int x[3];
  15     int *status = x + argc * 3;
  16     int res;
  17
  18     siginfo_t *si = (siginfo_t*)(x + argc * 3);
  19     res = waitid(P_ALL, 0, si, WEXITED | WNOHANG);
  20     // CHECK: stack-buffer-overflow
  21     // CHECK: {{WRITE of size .* at 0x.* thread T0}}
  22     // CHECK: {{in .*waitid}}
  23     // CHECK: {{in main .*waitid.cpp:}}
  24     // CHECK: is located in stack of thread T0 at offset
  25     // CHECK: {{in main}}
  26     return res != -1;
  27   }
  28   // child
  29   return 0;
  30 }