1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com> 4 */ 5 6#ifndef _SPECIAL_H 7#define _SPECIAL_H 8 9#include <stdbool.h> 10#include "check.h" 11#include "elf.h" 12 13#define C_JUMP_TABLE_SECTION ".rodata..c_jump_table" 14 15struct special_alt { 16 struct list_head list; 17 18 bool group; 19 bool skip_orig; 20 bool skip_alt; 21 bool jump_or_nop; 22 23 struct section *orig_sec; 24 unsigned long orig_off; 25 26 struct section *new_sec; 27 unsigned long new_off; 28 29 unsigned int orig_len, new_len; /* group only */ 30}; 31 32int special_get_alts(struct elf *elf, struct list_head *alts); 33 34void arch_handle_alternative(unsigned short feature, struct special_alt *alt); 35 36bool arch_support_alt_relocation(struct special_alt *special_alt, 37 struct instruction *insn, 38 struct reloc *reloc); 39struct reloc *arch_find_switch_table(struct objtool_file *file, 40 struct instruction *insn); 41#endif /* _SPECIAL_H */ 42