Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef _ARCH_H
19#define _ARCH_H
20
21#include <stdbool.h>
22#include <linux/list.h>
23#include "elf.h"
24#include "cfi.h"
25
26#define INSN_JUMP_CONDITIONAL 1
27#define INSN_JUMP_UNCONDITIONAL 2
28#define INSN_JUMP_DYNAMIC 3
29#define INSN_CALL 4
30#define INSN_CALL_DYNAMIC 5
31#define INSN_RETURN 6
32#define INSN_CONTEXT_SWITCH 7
33#define INSN_STACK 8
34#define INSN_NOP 9
35#define INSN_OTHER 10
36#define INSN_LAST INSN_OTHER
37
38enum op_dest_type {
39 OP_DEST_REG,
40 OP_DEST_REG_INDIRECT,
41 OP_DEST_MEM,
42 OP_DEST_PUSH,
43 OP_DEST_LEAVE,
44};
45
46struct op_dest {
47 enum op_dest_type type;
48 unsigned char reg;
49 int offset;
50};
51
52enum op_src_type {
53 OP_SRC_REG,
54 OP_SRC_REG_INDIRECT,
55 OP_SRC_CONST,
56 OP_SRC_POP,
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};
71
72void arch_initial_func_cfi_state(struct cfi_state *state);
73
74int arch_decode_instruction(struct elf *elf, struct section *sec,
75 unsigned long offset, unsigned int maxlen,
76 unsigned int *len, unsigned char *type,
77 unsigned long *immediate, struct stack_op *op);
78
79bool arch_callee_saved_reg(unsigned char reg);
80
81#endif /* _ARCH_H */