arch/tile/mm/extable.c

   1 /*
   2  * Copyright 2010 Tilera Corporation. All Rights Reserved.
   3  *
   4  *   This program is free software; you can redistribute it and/or
   5  *   modify it under the terms of the GNU General Public License
   6  *   as published by the Free Software Foundation, version 2.
   7  *
   8  *   This program is distributed in the hope that it will be useful, but
   9  *   WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  11  *   NON INFRINGEMENT.  See the GNU General Public License for
  12  *   more details.
  13  */
  14
  15 #include <linux/module.h>
  16 #include <linux/spinlock.h>
  17 #include <linux/uaccess.h>
  18
  19 int fixup_exception(struct pt_regs *regs)
  20 {
  21         const struct exception_table_entry *fixup;
  22
  23         fixup = search_exception_tables(regs->pc);
  24         if (fixup) {
  25                 regs->pc = fixup->fixup;
  26                 return 1;
  27         }
  28
  29         return 0;
  30 }