1 // RUN: %clangxx_asan -DWAIT4 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s 2 // RUN: %clangxx_asan -DWAIT4 -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s 3 4 // RUN: %clangxx_asan -DWAIT4_RUSAGE -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s 5 // RUN: %clangxx_asan -DWAIT4_RUSAGE -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s 6 7 // UNSUPPORTED: 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(WAIT4) 20 res = wait4(pid, status, WNOHANG, NULL); 21 #elif defined(WAIT4_RUSAGE) 22 struct rusage *ru = (struct rusage*)(x + argc * 3); 23 int good_status; 24 res = wait4(pid, &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 .*wait4.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 } 37