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