1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Borrowed heavily from MIPS
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <linux/export.h>
9*4882a593Smuzhiyun #include <linux/extable.h>
10*4882a593Smuzhiyun #include <linux/uaccess.h>
11*4882a593Smuzhiyun
fixup_exception(struct pt_regs * regs)12*4882a593Smuzhiyun int fixup_exception(struct pt_regs *regs)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun const struct exception_table_entry *fixup;
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun fixup = search_exception_tables(instruction_pointer(regs));
17*4882a593Smuzhiyun if (fixup) {
18*4882a593Smuzhiyun regs->ret = fixup->fixup;
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun return 1;
21*4882a593Smuzhiyun }
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun return 0;
24*4882a593Smuzhiyun }
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun #ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
27*4882a593Smuzhiyun
arc_clear_user_noinline(void __user * to,unsigned long n)28*4882a593Smuzhiyun unsigned long arc_clear_user_noinline(void __user *to,
29*4882a593Smuzhiyun unsigned long n)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun return __arc_clear_user(to, n);
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun EXPORT_SYMBOL(arc_clear_user_noinline);
34*4882a593Smuzhiyun
arc_strncpy_from_user_noinline(char * dst,const char __user * src,long count)35*4882a593Smuzhiyun long arc_strncpy_from_user_noinline(char *dst, const char __user *src,
36*4882a593Smuzhiyun long count)
37*4882a593Smuzhiyun {
38*4882a593Smuzhiyun return __arc_strncpy_from_user(dst, src, count);
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun EXPORT_SYMBOL(arc_strncpy_from_user_noinline);
41*4882a593Smuzhiyun
arc_strnlen_user_noinline(const char __user * src,long n)42*4882a593Smuzhiyun long arc_strnlen_user_noinline(const char __user *src, long n)
43*4882a593Smuzhiyun {
44*4882a593Smuzhiyun return __arc_strnlen_user(src, n);
45*4882a593Smuzhiyun }
46*4882a593Smuzhiyun EXPORT_SYMBOL(arc_strnlen_user_noinline);
47*4882a593Smuzhiyun #endif
48