deep_call_stack.cc revision 86277eb844c4983c81de62d7c050e92fe7155788 
1// Check that UAR mode can handle very deep recusrion.
2// RUN: export ASAN_OPTIONS=detect_stack_use_after_return=1
3// RUN: %clangxx_asan -O2 %s -o %t && \
4// RUN:   (ulimit -s 4096; %run %t) 2>&1 | FileCheck %s
5
6// Also check that use_sigaltstack+verbosity doesn't crash.
7// RUN: env ASAN_OPTIONS=verbosity=1:use_sigaltstack=1 %run %t  | FileCheck %s
8#include <stdio.h>
9
10__attribute__((noinline))
11void RecursiveFunc(int depth, int *ptr) {
12  if ((depth % 1000) == 0)
13    printf("[%05d] ptr: %p\n", depth, ptr);
14  if (depth == 0)
15    return;
16  int local;
17  RecursiveFunc(depth - 1, &local);
18}
19
20int main(int argc, char **argv) {
21  RecursiveFunc(15000, 0);
22  return 0;
23}
24// CHECK: [15000] ptr:
25// CHECK: [07000] ptr:
26// CHECK: [00000] ptr:
27