arch/ia64/mm/extable.c

   1 /*
   2  * Kernel exception handling table support.  Derived from arch/alpha/mm/extable.c.
   3  *
   4  * Copyright (C) 1998, 1999, 2001-2002, 2004 Hewlett-Packard Co
   5  *      David Mosberger-Tang <davidm@hpl.hp.com>
   6  */
   7
   8 #include <asm/ptrace.h>
   9 #include <asm/extable.h>
  10 #include <asm/errno.h>
  11 #include <asm/processor.h>
  12
  13 void
  14 ia64_handle_exception (struct pt_regs *regs, const struct exception_table_entry *e)
  15 {
  16         long fix = (u64) &e->fixup + e->fixup;
  17
  18         regs->r8 = -EFAULT;
  19         if (fix & 4)
  20                 regs->r9 = 0;
  21         regs->cr_iip = fix & ~0xf;
  22         ia64_psr(regs)->ri = fix & 0x3;         /* set continuation slot number */
  23 }