How to print stack backtrace in gcc

stack-backtrace.cpp

/*

## Compile

g++ -Wall -std=c++11 -rdynamic -g stack-backtrace.cpp -lbacktrace -o stack-backtrace &&  ./stack-backtrace
clang++ -Wall -std=c++11 -rdynamic -g stack-backtrace.cpp -lbacktrace -o stack-backtrace && ./stack-backtrace

## Output

  Backtrace:
  0x401678 Baz::foo() 	/home/tsaarni/backtrace/stack-backtrace.cpp:73
  0x401449 bar() 	/home/tsaarni/backtrace/stack-backtrace.cpp:83
  0x401458 foo 	/home/tsaarni/backtrace/stack-backtrace.cpp:89
  0x40147a main 	/home/tsaarni/backtrace/stack-backtrace.cpp:95  Backtrace:

## References:

https://github.com/gcc-mirror/gcc/blob/master/libbacktrace/backtrace.h
https://gcc.gnu.org/onlinedocs/libstdc++/libstdc++-html-USERS-4.3/a01696.html
http://stackoverflow.com/questions/4939636/function-to-mangle-demangle-functions

*/


#include <iostream>

#include <string.h>
#include <backtrace.h>
#include <cxxabi.h>

static int
full_callback(void *data __attribute__((unused)), uintptr_t pc, 
              const char *filename, int lineno, const char *function)
{
   char *realname = nullptr;
   int demangle_status;

   realname = abi::__cxa_demangle(function, 0, 0, &demangle_status);

   if (demangle_status != 0)
   {
      realname = ::strdup(function);
   }
   
   printf("0x%lx %s \t%s:%d\n", (unsigned long) pc, 
          realname == nullptr ? "???" : realname,
          filename == nullptr ? "???" : filename, lineno);

   free(realname);

   return strcmp(function, "main") == 0 ? 1 : 0;
}


static void
error_callback(void *data, const char *msg, int errnum)
{
   printf("Something went wrong in libbacktrace: %s\n", msg);
}
 

class Baz
{
public:
   Baz() {}
   
   void foo()
   {
      struct backtrace_state *lbstate;
 
      printf ("Backtrace:\n");
      lbstate = backtrace_create_state (nullptr, 1, error_callback, nullptr);      
      backtrace_full(lbstate, 0, full_callback, error_callback, 0);
   }
};


void
bar()
{
   Baz b;
   
   return b.foo();
}

extern "C" void
foo()
{
   return bar();
}

int
main(int argc, char *argv[])
{
   foo();
   return 0;
}