File indexing completed on 2025-02-16 05:12:10

 /*
  * test/suicide.cpp
  * Copyright 2013 Google Inc. All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
 
 #include "backward.hpp"
 
 #include "test/test.hpp"
 #include <cstdio>
 
 #ifndef _WIN32
 #include <sys/resource.h>
 #endif
 
 using namespace backward;
 
 void badass_function() {
   char *ptr = (char *)42;
   *ptr = 42;
 }
 
 TEST_SEGFAULT(invalid_write) { badass_function(); }
 
 int you_shall_not_pass() {
   char *ptr = (char *)42;
   int v = *ptr;
   return v;
 }
 
 TEST_SEGFAULT(invalid_read) {
   int v = you_shall_not_pass();
   std::cout << "v=" << v << std::endl;
 }
 
 void abort_abort_I_repeat_abort_abort() {
   std::cout << "Jumping off the boat!" << std::endl;
   abort();
 }
 
 TEST_ABORT(calling_abort) { abort_abort_I_repeat_abort_abort(); }
 
 // aarch64, mips, PowerPC and RISC-V do not trap Division by zero
 #if !defined(__aarch64__) && !defined(__mips__) && !defined (__powerpc__) && !defined (__riscv)
 volatile int zero = 0;
 
 int divide_by_zero() {
   std::cout << "And the wild black hole appears..." << std::endl;
   int v = 42 / zero;
   return v;
 }
 
 TEST_DIVZERO(divide_by_zero) {
   int v = divide_by_zero();
   std::cout << "v=" << v << std::endl;
 }
 #endif
 
 // Darwin does not allow RLIMIT_STACK to be reduced
 #ifndef __APPLE__
 int bye_bye_stack(int i) { return bye_bye_stack(i + 1) + bye_bye_stack(i * 2); }
 
 TEST_SEGFAULT(stackoverflow) {
 #ifndef _WIN32
   struct rlimit limit;
   limit.rlim_max = 8096;
   setrlimit(RLIMIT_STACK, &limit);
 #endif
   int r = bye_bye_stack(42);
   std::cout << "r=" << r << std::endl;
 }
 #endif