#include <stdio.h>
#include <sys/ucontext.h>
#include <signal.h>
/* c.f. Debian Bug#157374 */
#include <asm/sigcontext.h>

void sigsegv_handler(int signal, siginfo_t *info, void *context) {
  fprintf(stderr, "si_addr: %p (should probably be 0x0 [aka \"(nil)\"]\n",info->si_addr);
  fprintf(stderr, "%r1    : 0x%08x (should probably be 0xdeadbeef)\n",
	  ((struct sigcontext *) &(((ucontext_t *) context)->uc_mcontext))->sc_gr[1]);
  exit(0);
}

int main () {
  int *foo;
  struct sigaction sa;
  
  sa.sa_sigaction = sigsegv_handler;
  sa.sa_flags = SA_SIGINFO | SA_RESTART;
  sigaction(SIGSEGV, &sa, NULL);
  
  asm("ldil L%0xdeadbeef,%r1");
  asm("ldo R%0xdeadbeef(%r1),%r1");
  foo = NULL;
  *foo = 3;
}