LXR linux/arch/arc/mm/extable.c

   1/*
   2 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License version 2 as
   6 * published by the Free Software Foundation.
   7 *
   8 * Borrowed heavily from MIPS
   9 */
  10
  11#include <linux/module.h>
  12#include <linux/uaccess.h>
  13
  14int fixup_exception(struct pt_regs *regs)
  15{
  16        const struct exception_table_entry *fixup;
  17
  18        fixup = search_exception_tables(instruction_pointer(regs));
  19        if (fixup) {
  20                regs->ret = fixup->fixup;
  21
  22                return 1;
  23        }
  24
  25        return 0;
  26}
  27
  28#ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
  29
  30long arc_copy_from_user_noinline(void *to, const void __user *from,
  31                unsigned long n)
  32{
  33        return __arc_copy_from_user(to, from, n);
  34}
  35EXPORT_SYMBOL(arc_copy_from_user_noinline);
  36
  37long arc_copy_to_user_noinline(void __user *to, const void *from,
  38                unsigned long n)
  39{
  40        return __arc_copy_to_user(to, from, n);
  41}
  42EXPORT_SYMBOL(arc_copy_to_user_noinline);
  43
  44unsigned long arc_clear_user_noinline(void __user *to,
  45                unsigned long n)
  46{
  47        return __arc_clear_user(to, n);
  48}
  49EXPORT_SYMBOL(arc_clear_user_noinline);
  50
  51long arc_strncpy_from_user_noinline(char *dst, const char __user *src,
  52                long count)
  53{
  54        return __arc_strncpy_from_user(dst, src, count);
  55}
  56EXPORT_SYMBOL(arc_strncpy_from_user_noinline);
  57
  58long arc_strnlen_user_noinline(const char __user *src, long n)
  59{
  60        return __arc_strnlen_user(src, n);
  61}
  62EXPORT_SYMBOL(arc_strnlen_user_noinline);
  63#endif
  64