| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* |
| 2 | * livepatch.h - x86-specific Kernel Live Patching Core |
| 3 | * |
| 4 | * Copyright (C) 2014 Seth Jennings <sjenning@redhat.com> |
| 5 | * Copyright (C) 2014 SUSE |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version 2 |
| 10 | * of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
| 19 | */ |
| 20 | |
| 21 | #ifndef _ASM_X86_LIVEPATCH_H |
| 22 | #define _ASM_X86_LIVEPATCH_H |
| 23 | |
| 24 | #include <asm/setup.h> |
| 25 | #include <linux/ftrace.h> |
| 26 | |
| 27 | static inline int klp_check_compiler_support(void) |
| 28 | { |
| 29 | #ifndef CC_USING_FENTRY |
| 30 | return 1; |
| 31 | #endif |
| 32 | return 0; |
| 33 | } |
| 34 | |
| 35 | static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip) |
| 36 | { |
| 37 | regs->ip = ip; |
| 38 | } |
| 39 | |
| 40 | #endif /* _ASM_X86_LIVEPATCH_H */ |