#define UNW_LOCAL_ONLY
#include <libunwind.h>
#include <stdio.h>
#include <stdlib.h>

// Function to print the current stack trace
void show_backtrace(void)
{
    unw_cursor_t cursor;
    unw_context_t context;
    unw_word_t ip, sp;
    char sym[256];
    unw_word_t offset;

    // Initialize cursor to current frame for local unwinding
    unw_getcontext(&context);
    unw_init_local(&cursor, &context);

    printf("--- Stack Trace ---\n");
    // Unwind frames one by one
    while (unw_step(&cursor) > 0) {
        unw_get_reg(&cursor, UNW_REG_IP, &ip);
        unw_get_reg(&cursor, UNW_REG_SP, &sp);
        
        // Try to get the function name
        if (unw_get_proc_name(&cursor, sym, sizeof(sym), &offset) == 0) {
            printf("0x%lx: (%s+0x%lx)\n", (long)ip, sym, (long)offset);
        } else {
            printf("0x%lx: -- no symbol name found --\n", (long)ip);
        }
    }
    printf("-------------------\n");
}

void function_c(void)
{
    show_backtrace();
}

void function_b(void)
{
    function_c();
}

void function_a(void)
{
    function_b();
}

int main(int argc, char **argv)
{
    function_a();
    return 0;
}