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// Copyright Oliver Kowalke 2016.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#define UNW_LOCAL_ONLY
#include <cstdlib>
#include <iostream>
#include <libunwind.h>
#include <boost/context/fiber.hpp>
namespace ctx = boost::context;
void backtrace() {
unw_cursor_t cursor;
unw_context_t context;
unw_getcontext( & context);
unw_init_local( & cursor, & context);
while ( 0 < unw_step( & cursor) ) {
unw_word_t offset, pc;
unw_get_reg( & cursor, UNW_REG_IP, & pc);
if ( 0 == pc) {
break;
}
std::cout << "0x" << pc << ":";
char sym[256];
if ( 0 == unw_get_proc_name( & cursor, sym, sizeof( sym), & offset) ) {
std::cout << " (" << sym << "+0x" << offset << ")" << std::endl;
} else {
std::cout << " -- error: unable to obtain symbol name for this frame" << std::endl;
}
}
}
void bar() {
backtrace();
}
void foo() {
bar();
}
ctx::fiber f1( ctx::fiber && c) {
foo();
return std::move( c);
}
int main() {
ctx::fiber{ f1 }.resume();
std::cout << "main: done" << std::endl;
return EXIT_SUCCESS;
}
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