| /* |
| * livepatch.h - x86-specific Kernel Live Patching Core |
| * |
| * Copyright (C) 2014 Seth Jennings <sjenning@redhat.com> |
| * Copyright (C) 2014 SUSE |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #ifndef _ASM_X86_LIVEPATCH_H |
| #define _ASM_X86_LIVEPATCH_H |
| |
| #include <linux/module.h> |
| #include <linux/ftrace.h> |
| |
| #ifdef CONFIG_LIVEPATCH |
| static inline int klp_check_compiler_support(void) |
| { |
| #ifndef CC_USING_FENTRY |
| return 1; |
| #endif |
| return 0; |
| } |
| int klp_write_module_reloc(struct module *mod, unsigned long type, |
| unsigned long loc, unsigned long value); |
| |
| static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip) |
| { |
| regs->ip = ip; |
| } |
| #else |
| #error Live patching support is disabled; check CONFIG_LIVEPATCH |
| #endif |
| |
| #endif /* _ASM_X86_LIVEPATCH_H */ |
