1 // Test that use-after-return works with exceptions. 2 // RUN: %clangxx_asan -O0 %s -o %t 3 // RUN: %env_asan_opts=detect_stack_use_after_return=1 %run %t 4 5 // Clang doesn't support exceptions on Windows yet. 6 // XFAIL: win32 7 8 #include <stdio.h> 9 10 volatile char *g; 11 12 #ifndef FRAME_SIZE 13 # define FRAME_SIZE 100 14 #endif 15 16 #ifndef NUM_ITER 17 # define NUM_ITER 4000 18 #endif 19 20 #ifndef DO_THROW 21 # define DO_THROW 1 22 #endif 23 24 void Func(int depth) { 25 char frame[FRAME_SIZE]; 26 g = &frame[0]; 27 if (depth) 28 Func(depth - 1); 29 else if (DO_THROW) 30 throw 1; 31 } 32 33 int main(int argc, char **argv) { 34 for (int i = 0; i < NUM_ITER; i++) { 35 try { 36 Func(argc * 100); 37 } catch(...) { 38 } 39 if ((i % (NUM_ITER / 10)) == 0) 40 fprintf(stderr, "done [%d]\n", i); 41 } 42 return 0; 43 } 44
