i386/junos/ucla/src/lab4/user/faultdie.c

   1 // test user-level fault handler -- just exit when we fault
   2
   3 #include <inc/lib.h>
   4
   5 void
   6 handler(struct UTrapframe *utf)
   7 {
   8         void *addr = (void*)utf->utf_fault_va;
   9         uint32_t err = utf->utf_err;
  10         cprintf("i faulted at va %x, err %x\n", addr, err & 7);
  11         sys_env_destroy(sys_getenvid());
  12 }
  13
  14 asmlinkage void
  15 umain(int argc, char **argv)
  16 {
  17         set_pgfault_handler(handler);
  18         *(int*)0xDeadBeef = 0;
  19 }