143697cb0SVineet Gupta /* 243697cb0SVineet Gupta * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 343697cb0SVineet Gupta * 443697cb0SVineet Gupta * This program is free software; you can redistribute it and/or modify 543697cb0SVineet Gupta * it under the terms of the GNU General Public License version 2 as 643697cb0SVineet Gupta * published by the Free Software Foundation. 743697cb0SVineet Gupta * 843697cb0SVineet Gupta * Borrowed heavily from MIPS 943697cb0SVineet Gupta */ 1043697cb0SVineet Gupta 11*9ce6dbe8SPaul Gortmaker #include <linux/export.h> 12*9ce6dbe8SPaul Gortmaker #include <linux/extable.h> 1343697cb0SVineet Gupta #include <linux/uaccess.h> 1443697cb0SVineet Gupta 1543697cb0SVineet Gupta int fixup_exception(struct pt_regs *regs) 1643697cb0SVineet Gupta { 1743697cb0SVineet Gupta const struct exception_table_entry *fixup; 1843697cb0SVineet Gupta 1943697cb0SVineet Gupta fixup = search_exception_tables(instruction_pointer(regs)); 2043697cb0SVineet Gupta if (fixup) { 2143697cb0SVineet Gupta regs->ret = fixup->fixup; 2243697cb0SVineet Gupta 2343697cb0SVineet Gupta return 1; 2443697cb0SVineet Gupta } 2543697cb0SVineet Gupta 2643697cb0SVineet Gupta return 0; 2743697cb0SVineet Gupta } 2843697cb0SVineet Gupta 2943697cb0SVineet Gupta #ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 3043697cb0SVineet Gupta 3143697cb0SVineet Gupta long arc_copy_from_user_noinline(void *to, const void __user *from, 3243697cb0SVineet Gupta unsigned long n) 3343697cb0SVineet Gupta { 3443697cb0SVineet Gupta return __arc_copy_from_user(to, from, n); 3543697cb0SVineet Gupta } 3643697cb0SVineet Gupta EXPORT_SYMBOL(arc_copy_from_user_noinline); 3743697cb0SVineet Gupta 3843697cb0SVineet Gupta long arc_copy_to_user_noinline(void __user *to, const void *from, 3943697cb0SVineet Gupta unsigned long n) 4043697cb0SVineet Gupta { 4143697cb0SVineet Gupta return __arc_copy_to_user(to, from, n); 4243697cb0SVineet Gupta } 4343697cb0SVineet Gupta EXPORT_SYMBOL(arc_copy_to_user_noinline); 4443697cb0SVineet Gupta 4543697cb0SVineet Gupta unsigned long arc_clear_user_noinline(void __user *to, 4643697cb0SVineet Gupta unsigned long n) 4743697cb0SVineet Gupta { 4843697cb0SVineet Gupta return __arc_clear_user(to, n); 4943697cb0SVineet Gupta } 5043697cb0SVineet Gupta EXPORT_SYMBOL(arc_clear_user_noinline); 5143697cb0SVineet Gupta 5243697cb0SVineet Gupta long arc_strncpy_from_user_noinline(char *dst, const char __user *src, 5343697cb0SVineet Gupta long count) 5443697cb0SVineet Gupta { 5543697cb0SVineet Gupta return __arc_strncpy_from_user(dst, src, count); 5643697cb0SVineet Gupta } 5743697cb0SVineet Gupta EXPORT_SYMBOL(arc_strncpy_from_user_noinline); 5843697cb0SVineet Gupta 5943697cb0SVineet Gupta long arc_strnlen_user_noinline(const char __user *src, long n) 6043697cb0SVineet Gupta { 6143697cb0SVineet Gupta return __arc_strnlen_user(src, n); 6243697cb0SVineet Gupta } 6343697cb0SVineet Gupta EXPORT_SYMBOL(arc_strnlen_user_noinline); 6443697cb0SVineet Gupta #endif 65