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: 31