Print name of the caller of the calling function

Question

There's a great answer to the question "Print the name of the calling function" here:

Print the name of the calling function to the debug log

Is it possible to go one step further and find the caller of the caller?

Answer 1

Yap. Modifying the example you linked:

void *addr[3];
int nframes = backtrace(addr, sizeof(addr) / sizeof(*addr));
char **syms = backtrace_symbols(addr, nframes);
NSLog(@"%s: caller of caller: %s", __func__, syms[2]);