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 // XFAIL: android 8 // UNSUPPORTED: darwin 9 10 #include <assert.h> 11 #include <sys/wait.h> 12 #include <unistd.h> 13 main(int argc,char ** argv)14int main(int argc, char **argv) { 15 // This test passes on some versions of Android NDK and fails on other. 16 // https://code.google.com/p/memory-sanitizer/issues/detail?id=64 17 // Make it fail unconditionally on Android. 18 #ifdef __ANDROID__ 19 return 0; 20 #endif 21 22 pid_t pid = fork(); 23 if (pid) { // parent 24 int x[3]; 25 int *status = x + argc * 3; 26 int res; 27 #if defined(WAIT4) 28 res = wait4(pid, status, WNOHANG, NULL); 29 #elif defined(WAIT4_RUSAGE) 30 struct rusage *ru = (struct rusage*)(x + argc * 3); 31 int good_status; 32 res = wait4(pid, &good_status, WNOHANG, ru); 33 #endif 34 // CHECK: stack-buffer-overflow 35 // CHECK: {{WRITE of size .* at 0x.* thread T0}} 36 // CHECK: {{in .*wait}} 37 // CHECK: {{in main .*wait4.cpp:}} 38 // CHECK: is located in stack of thread T0 at offset 39 // CHECK: {{in main}} 40 return res == -1 ? 1 : 0; 41 } 42 // child 43 return 0; 44 } 45