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 12 int 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 28 unsigned long arc_clear_user_noinline(void __user *to, 29 unsigned long n) 30 { 31 return __arc_clear_user(to, n); 32 } 33 EXPORT_SYMBOL(arc_clear_user_noinline); 34 35 long 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 } 40 EXPORT_SYMBOL(arc_strncpy_from_user_noinline); 41 42 long arc_strnlen_user_noinline(const char __user *src, long n) 43 { 44 return __arc_strnlen_user(src, n); 45 } 46 EXPORT_SYMBOL(arc_strnlen_user_noinline); 47 #endif 48