Add breakpoints and set handlers

My high level goal is something like this:

void print_backtrace() {
    void *callstack[128];
    int framesC = backtrace(callstack, sizeof(callstack));
    printf("backtrace() returned %d addresses\n", framesC);
    char** strs = backtrace_symbols(callstack, framesC);
    for(int i = 0; i < framesC; ++i) {
        if(strs[i])
            printf("%s\n", strs[i]);
        else
            break;
    }
    free(strs);
}

install_breakpoint_handler("__NSAutoreleaseNoPool", print_backtrace);

Thus, every time a function breakpoint __NSAutoreleaseNoPoolis called, it should be called print_backtrace. (Everything is inside the same binary file. I am not trying to catch the breakpoint of individual processes.)

I think I can somehow do it through ptrace. Is there an easy to use and easy library?

I'm currently looking for a solution for MacOSX, but cross-platform would be nice, of course.