compiler-rt/test/asan/TestCases/Posix/deep_call_stack.cpp

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