| 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 | // RUN: %clangxx_asan -O0 %s -o %t -fsanitize-address-use-after-return=always |
| 5 | // RUN: %run %t |
| 6 | |
| 7 | #include <stdio.h> |
| 8 | |
| 9 | volatile char *g; |
| 10 | |
| 11 | #ifndef FRAME_SIZE |
| 12 | # define FRAME_SIZE 100 |
| 13 | #endif |
| 14 | |
| 15 | #ifndef NUM_ITER |
| 16 | # define NUM_ITER 4000 |
| 17 | #endif |
| 18 | |
| 19 | #ifndef DO_THROW |
| 20 | # define DO_THROW 1 |
| 21 | #endif |
| 22 | |
| 23 | void Func(int depth) { |
| 24 | char frame[FRAME_SIZE]; |
| 25 | g = &frame[0]; |
| 26 | if (depth) |
| 27 | Func(depth: depth - 1); |
| 28 | else if (DO_THROW) |
| 29 | throw 1; |
| 30 | } |
| 31 | |
| 32 | int main(int argc, char **argv) { |
| 33 | for (int i = 0; i < NUM_ITER; i++) { |
| 34 | try { |
| 35 | Func(depth: argc * 100); |
| 36 | } catch(...) { |
| 37 | } |
| 38 | if ((i % (NUM_ITER / 10)) == 0) |
| 39 | fprintf(stderr, format: "done [%d]\n" , i); |
| 40 | } |
| 41 | return 0; |
| 42 | } |
| 43 | |