ceph/src/boost/libs/stacktrace/example/debug_function.cpp

   1 // Copyright Antony Polukhin, 2016-2018.
   2 //
   3 // Distributed under the Boost Software License, Version 1.0. (See
   4 // accompanying file LICENSE_1_0.txt or copy at
   5 // http://www.boost.org/LICENSE_1_0.txt)
   6
   7 //[getting_started_debug_function
   8 #include <signal.h>     // ::signal
   9 #include <boost/stacktrace/frame.hpp>
  10 #include <iostream>     // std::cerr
  11 #include <cstdlib>      // std::exit
  12
  13 void print_signal_handler_and_exit() {
  14     typedef void(*function_t)(int);
  15
  16     function_t old_signal_function = ::signal(SIGSEGV, SIG_DFL);
  17     boost::stacktrace::frame f(old_signal_function);
  18     std::cout << f << std::endl;
  19     std::exit(0);
  20 }
  21 //]
  22
  23
  24 void my_signal_handler(int /*signum*/) {
  25     std::exit(1);
  26 }
  27
  28 int main() {
  29     ::signal(SIGSEGV, &my_signal_handler);
  30     print_signal_handler_and_exit();
  31 }
  32
  33