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      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
      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.cc:}}
     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 }
     37