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