arch/riscv/mm/extable.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (C) 2009 Sunplus Core Technology Co., Ltd.
   4  *  Lennox Wu <lennox.wu@sunplusct.com>
   5  *  Chen Liqin <liqin.chen@sunplusct.com>
   6  * Copyright (C) 2013 Regents of the University of California
   7  */
   8
   9
  10 #include <linux/extable.h>
  11 #include <linux/module.h>
  12 #include <linux/uaccess.h>
  13
  14 int fixup_exception(struct pt_regs *regs)
  15 {
  16         const struct exception_table_entry *fixup;
  17
  18         fixup = search_exception_tables(regs->epc);
  19         if (fixup) {
  20                 regs->epc = fixup->fixup;
  21                 return 1;
  22         }
  23         return 0;
  24 }