C++ Boost::Boost::Stacktrace














































C++ Boost::Boost::Stacktrace



Stacktrace is a report of the active stack frames at a certain point in time during the execution of a program. When a program is run, memory is often dynamically allocated in two places, the stack, and the heap. 

Stacktrace can be referred to as backtracking.
 
Let's see an example of stack tracing:

#include <boost/stacktrace.hpp>

// ... somewhere inside the `bar(int)` function that is called recursively:
std::cout << boost::stacktrace::stacktrace();

In that example:

  • boost::stacktrace:: is the namespace that has all the classes and functions to work with the stack trace.
  •   stacktrace() is the default constructor call; constructor stores the current function call sequence inside the stack trace class. 

Header:

#include <boost/stacktrace.hpp>

Syntax:

std::cout << boost::stacktrace::stacktrace();

Program:


#include <signal.h>     // ::signal, ::raise
#include <boost/stacktrace.hpp>
#include<iostream>
int main()
{

void my_signal_handler(void);
}
void my_signal_handler(int signum) {
    ::signal(signum, SIG_DFL);
    boost::stacktrace::safe_dump_to("./backtrace.dump");
    ::raise(SIGABRT);
}

Output:

0# bar(int) at /path/to/source/file.cpp:70
1# bar(int) at /path/to/source/file.cpp:70
2# bar(int) at /path/to/source/file.cpp:70
3# bar(int) at /path/to/source/file.cpp:70
4# main at /path/to/main.cpp:93
5# __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
6# _start







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