#include <signal.h>
#include <sys/types.h>
#include <ucontext.h>
#include <stdio.h>
#include <unistd.h>

void handler (int sig, siginfo_t *si, ucontext_t *ctx)
{
    stack_t st = ctx->uc_stack;
    size_t *retp = ctx->uc_mcontext.mc_rsp;
    printf ("%p\n", ctx->uc_mcontext.mc_rip);
    int i;
    for (i=0; i<30; i++)
    {
        printf ("%p\n", *(retp+i));
    }
}

void lol () {kill (getpid(), SIGINT);}

int main()
{
    printf ("%i\n", sizeof (size_t));
    struct sigaction sa;
    sigemptyset (&sa.sa_mask);
    sa.sa_flags = SA_RESETHAND | SA_SIGINFO;
    sa.sa_sigaction = handler;
    sigaction (SIGINT, &sa, NULL);

    lol();
    return 0;
}