Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
4 */
5
6#ifndef _ARCH_H
7#define _ARCH_H
8
9#include <stdbool.h>
10#include <linux/list.h>
11#include "objtool.h"
12#include "cfi.h"
13
14#ifdef INSN_USE_ORC
15#include <asm/orc_types.h>
16#endif
17
18enum insn_type {
19 INSN_JUMP_CONDITIONAL,
20 INSN_JUMP_UNCONDITIONAL,
21 INSN_JUMP_DYNAMIC,
22 INSN_JUMP_DYNAMIC_CONDITIONAL,
23 INSN_CALL,
24 INSN_CALL_DYNAMIC,
25 INSN_RETURN,
26 INSN_CONTEXT_SWITCH,
27 INSN_BUG,
28 INSN_NOP,
29 INSN_STAC,
30 INSN_CLAC,
31 INSN_STD,
32 INSN_CLD,
33 INSN_OTHER,
34};
35
36enum op_dest_type {
37 OP_DEST_REG,
38 OP_DEST_REG_INDIRECT,
39 OP_DEST_MEM,
40 OP_DEST_PUSH,
41 OP_DEST_PUSHF,
42 OP_DEST_LEAVE,
43};
44
45struct op_dest {
46 enum op_dest_type type;
47 unsigned char reg;
48 int offset;
49};
50
51enum op_src_type {
52 OP_SRC_REG,
53 OP_SRC_REG_INDIRECT,
54 OP_SRC_CONST,
55 OP_SRC_POP,
56 OP_SRC_POPF,
57 OP_SRC_ADD,
58 OP_SRC_AND,
59};
60
61struct op_src {
62 enum op_src_type type;
63 unsigned char reg;
64 int offset;
65};
66
67struct stack_op {
68 struct op_dest dest;
69 struct op_src src;
70 struct list_head list;
71};
72
73struct instruction;
74
75void arch_initial_func_cfi_state(struct cfi_init_state *state);
76
77int arch_decode_instruction(const struct elf *elf, const struct section *sec,
78 unsigned long offset, unsigned int maxlen,
79 unsigned int *len, enum insn_type *type,
80 unsigned long *immediate,
81 struct list_head *ops_list);
82
83bool arch_callee_saved_reg(unsigned char reg);
84
85unsigned long arch_jump_destination(struct instruction *insn);
86
87unsigned long arch_dest_reloc_offset(int addend);
88
89const char *arch_nop_insn(int len);
90
91int arch_decode_hint_reg(struct instruction *insn, u8 sp_reg);
92
93#endif /* _ARCH_H */