Simple stacktrace printing in C using libbacktrace

main.c

/**
 * A simple demonstration of libbacktrace to print a stacktrace.
 * 
 * bear -- gcc -O0 -g -o main main.c -lbacktrace && ./main
 * bear -- clang -O0 -g -isystem /usr/lib/gcc/x86_64-linux-gnu/12/include/ -o main main.c -lbacktrace && ./main
 */
#include <stdio.h>

#include <backtrace.h>

typedef struct {
    struct backtrace_state* state;
} StacktraceContext;

// global/static or thread local??
StacktraceContext stacktrace_ctx = {0};

void stacktrace_setup(void)
{
    // The name of the executable
    const char* filename = NULL;

    // Non-zero if threaded
    int threaded = 0;

    backtrace_error_callback error_callback = NULL;
    void* userdata = NULL;

    stacktrace_ctx.state = backtrace_create_state(filename, threaded, error_callback, userdata);
}

void stacktrace_print(void)
{
    int skip_frames = 0;
    backtrace_print(stacktrace_ctx.state, skip_frames, stderr);
}

void bar()
{
    stacktrace_print();
    puts("It Works!");
}

void foo()
{
    bar();
}

int main()
{
    stacktrace_setup();

    //TODO add signal handling

    foo();
}