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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))
RecursiveFunc(int depth,int * ptr)11 void 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 
main(int argc,char ** argv)20 int 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