[linux-block.git] / tools / objtool / arch.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
 */

#ifndef _ARCH_H
#define _ARCH_H

#include <stdbool.h>
#include <linux/list.h>
#include "elf.h"
#include "cfi.h"

#define INSN_JUMP_CONDITIONAL	1
#define INSN_JUMP_UNCONDITIONAL	2
#define INSN_JUMP_DYNAMIC	3
#define INSN_CALL		4
#define INSN_CALL_DYNAMIC	5
#define INSN_RETURN		6
#define INSN_CONTEXT_SWITCH	7
#define INSN_STACK		8
#define INSN_BUG		9
#define INSN_NOP		10
#define INSN_STAC		11
#define INSN_CLAC		12
#define INSN_STD		13
#define INSN_CLD		14
#define INSN_OTHER		15
#define INSN_LAST		INSN_OTHER

enum op_dest_type {
	OP_DEST_REG,
	OP_DEST_REG_INDIRECT,
	OP_DEST_MEM,
	OP_DEST_PUSH,
	OP_DEST_PUSHF,
	OP_DEST_LEAVE,
};

struct op_dest {
	enum op_dest_type type;
	unsigned char reg;
	int offset;
};

enum op_src_type {
	OP_SRC_REG,
	OP_SRC_REG_INDIRECT,
	OP_SRC_CONST,
	OP_SRC_POP,
	OP_SRC_POPF,
	OP_SRC_ADD,
	OP_SRC_AND,
};

struct op_src {
	enum op_src_type type;
	unsigned char reg;
	int offset;
};

struct stack_op {
	struct op_dest dest;
	struct op_src src;
};

void arch_initial_func_cfi_state(struct cfi_state *state);

int arch_decode_instruction(struct elf *elf, struct section *sec,
			    unsigned long offset, unsigned int maxlen,
			    unsigned int *len, unsigned char *type,
			    unsigned long *immediate, struct stack_op *op);

bool arch_callee_saved_reg(unsigned char reg);

#endif /* _ARCH_H */
Commit	Line	Data
1ccea77e	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
442f04c3 JP	2	/*
442f04c3 JP	3	* Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
442f04c3 JP	4	*/
	5
	6	#ifndef _ARCH_H
	7	#define _ARCH_H
	8
	9	#include <stdbool.h>
baa41469	10	#include <linux/list.h>
442f04c3	11	#include "elf.h"
baa41469	12	#include "cfi.h"
442f04c3	13
baa41469 JP	14	#define INSN_JUMP_CONDITIONAL 1
	15	#define INSN_JUMP_UNCONDITIONAL 2
	16	#define INSN_JUMP_DYNAMIC 3
	17	#define INSN_CALL 4
	18	#define INSN_CALL_DYNAMIC 5
	19	#define INSN_RETURN 6
	20	#define INSN_CONTEXT_SWITCH 7
	21	#define INSN_STACK 8
649ea4d5 JP	22	#define INSN_BUG 9
649ea4d5 JP	23	#define INSN_NOP 10
ea24213d PZ	24	#define INSN_STAC 11
ea24213d PZ	25	#define INSN_CLAC 12
2f0f9e9a PZ	26	#define INSN_STD 13
	27	#define INSN_CLD 14
	28	#define INSN_OTHER 15
442f04c3 JP	29	#define INSN_LAST INSN_OTHER
442f04c3 JP	30
baa41469 JP	31	enum op_dest_type {
	32	OP_DEST_REG,
	33	OP_DEST_REG_INDIRECT,
	34	OP_DEST_MEM,
	35	OP_DEST_PUSH,
ea24213d	36	OP_DEST_PUSHF,
baa41469 JP	37	OP_DEST_LEAVE,
	38	};
	39
	40	struct op_dest {
	41	enum op_dest_type type;
	42	unsigned char reg;
	43	int offset;
	44	};
	45
	46	enum op_src_type {
	47	OP_SRC_REG,
	48	OP_SRC_REG_INDIRECT,
	49	OP_SRC_CONST,
	50	OP_SRC_POP,
ea24213d	51	OP_SRC_POPF,
baa41469 JP	52	OP_SRC_ADD,
	53	OP_SRC_AND,
	54	};
	55
	56	struct op_src {
	57	enum op_src_type type;
	58	unsigned char reg;
	59	int offset;
	60	};
	61
	62	struct stack_op {
	63	struct op_dest dest;
	64	struct op_src src;
	65	};
	66
	67	void arch_initial_func_cfi_state(struct cfi_state *state);
	68
442f04c3 JP	69	int arch_decode_instruction(struct elf elf, struct section sec,
	70	unsigned long offset, unsigned int maxlen,
	71	unsigned int len, unsigned char type,
baa41469 JP	72	unsigned long immediate, struct stack_op op);
	73
	74	bool arch_callee_saved_reg(unsigned char reg);
442f04c3 JP	75
442f04c3 JP	76	#endif /* _ARCH_H */