static struct sigaction oldsigact;
static void armbacktrace_segv_handler(int sig, siginfo_t *info, void *ucontext)
{
        static bool busy = false;
        if (busy) /* forbids concurrent call */
                return;
        busy = true;
        static void *stack_addresses[128];
        int size = backtrace(stack_addresses, 128);
        fprintf(stderr, "\n---------- STACKTRACE ---------- %d\n", size);
        backtrace_symbols_fd(stack_addresses, size, STDERR_FILENO);
        fprintf(stderr, "---------- STACKTRACE ----------\n\n");
        oldsigact.sa_sigaction(sig, info, ucontext);
}

void armbacktrace_init(void)
{
        struct sigaction sigact = {
                .sa_sigaction = armbacktrace_segv_handler,
                .sa_flags     = SA_RESTART | SA_SIGINFO,
        };

        if (sigaction(SIGSEGV, &sigact, &oldsigact) != 0) {
                fprintf(stderr, "Error installing SEGV signal");
                exit(EXIT_FAILURE);
        }
}