| | 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/module.h> |
| | 26 | #include <linux/ftrace.h> |
| | 27 | |
| | 28 | static inline int klp_check_compiler_support(void) |
| | 29 | { |
| | 30 | #ifndef CC_USING_FENTRY |
| | 31 | return 1; |
| | 32 | #endif |
| | 33 | return 0; |
| | 34 | } |
| | 35 | int klp_write_module_reloc(struct module *mod, unsigned long type, |
| | 36 | unsigned long loc, unsigned long value); |
| | 37 | |
| | 38 | static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip) |
| | 39 | { |
| | 40 | regs->ip = ip; |
| | 41 | } |
| | 42 | |
| | 43 | #endif /* _ASM_X86_LIVEPATCH_H */ |
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