1*673dc3d4SNico Weber // Check that UAR mode can handle very deep recusrion.
2*673dc3d4SNico Weber // RUN: %clangxx_asan -O2 %s -o %t
3*673dc3d4SNico Weber // RUN: ulimit -s 4096
4*673dc3d4SNico Weber // RUN: %env_asan_opts=detect_stack_use_after_return=1 %run %t 2>&1 | FileCheck %s
5*673dc3d4SNico Weber 
6*673dc3d4SNico Weber // Also check that use_sigaltstack+verbosity doesn't crash.
7*673dc3d4SNico Weber // RUN: %env_asan_opts=verbosity=1:use_sigaltstack=1:detect_stack_use_after_return=1 %run %t  | FileCheck %s
8*673dc3d4SNico Weber 
9*673dc3d4SNico Weber // UNSUPPORTED: ios
10*673dc3d4SNico Weber 
11*673dc3d4SNico Weber #include <stdio.h>
12*673dc3d4SNico Weber 
13*673dc3d4SNico Weber __attribute__((noinline))
RecursiveFunc(int depth,int * ptr)14*673dc3d4SNico Weber void RecursiveFunc(int depth, int *ptr) {
15*673dc3d4SNico Weber   if ((depth % 1000) == 0)
16*673dc3d4SNico Weber     printf("[%05d] ptr: %p\n", depth, ptr);
17*673dc3d4SNico Weber   if (depth == 0)
18*673dc3d4SNico Weber     return;
19*673dc3d4SNico Weber   int local;
20*673dc3d4SNico Weber   RecursiveFunc(depth - 1, &local);
21*673dc3d4SNico Weber }
22*673dc3d4SNico Weber 
main(int argc,char ** argv)23*673dc3d4SNico Weber int main(int argc, char **argv) {
24*673dc3d4SNico Weber   RecursiveFunc(15000, 0);
25*673dc3d4SNico Weber   return 0;
26*673dc3d4SNico Weber }
27*673dc3d4SNico Weber // CHECK: [15000] ptr:
28*673dc3d4SNico Weber // CHECK: [07000] ptr:
29*673dc3d4SNico Weber // CHECK: [00000] ptr:
30