(Linux) Print backtrace

backtrace.c

// Link with -rdynamic

#include <execinfo.h>
#include <assert.h>
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>

void bt() {
  const size_t size = 100;
  void *bufs[size];
  char **syms;
  int n = backtrace(bufs, size), i;
  syms = backtrace_symbols(bufs, n);
  assert(syms);
  for (i = 0; i < n; ++i) {
    printf("%s\n", syms[i]);
  }
  free(syms);
}