[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"

enum insn_type {
	INSN_JUMP_CONDITIONAL,
	INSN_JUMP_UNCONDITIONAL,
	INSN_JUMP_DYNAMIC,
	INSN_JUMP_DYNAMIC_CONDITIONAL,
	INSN_CALL,
	INSN_CALL_DYNAMIC,
	INSN_RETURN,
	INSN_CONTEXT_SWITCH,
	INSN_STACK,
	INSN_BUG,
	INSN_NOP,
	INSN_STAC,
	INSN_CLAC,
	INSN_STD,
	INSN_CLD,
	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, enum insn_type *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
9fe7b764 JP	14	enum insn_type {
	15	INSN_JUMP_CONDITIONAL,
	16	INSN_JUMP_UNCONDITIONAL,
	17	INSN_JUMP_DYNAMIC,
b68b9907	18	INSN_JUMP_DYNAMIC_CONDITIONAL,
9fe7b764 JP	19	INSN_CALL,
	20	INSN_CALL_DYNAMIC,
	21	INSN_RETURN,
	22	INSN_CONTEXT_SWITCH,
	23	INSN_STACK,
	24	INSN_BUG,
	25	INSN_NOP,
	26	INSN_STAC,
	27	INSN_CLAC,
	28	INSN_STD,
	29	INSN_CLD,
	30	INSN_OTHER,
	31	};
442f04c3	32
baa41469 JP	33	enum op_dest_type {
	34	OP_DEST_REG,
	35	OP_DEST_REG_INDIRECT,
	36	OP_DEST_MEM,
	37	OP_DEST_PUSH,
ea24213d	38	OP_DEST_PUSHF,
baa41469 JP	39	OP_DEST_LEAVE,
	40	};
	41
	42	struct op_dest {
	43	enum op_dest_type type;
	44	unsigned char reg;
	45	int offset;
	46	};
	47
	48	enum op_src_type {
	49	OP_SRC_REG,
	50	OP_SRC_REG_INDIRECT,
	51	OP_SRC_CONST,
	52	OP_SRC_POP,
ea24213d	53	OP_SRC_POPF,
baa41469 JP	54	OP_SRC_ADD,
	55	OP_SRC_AND,
	56	};
	57
	58	struct op_src {
	59	enum op_src_type type;
	60	unsigned char reg;
	61	int offset;
	62	};
	63
	64	struct stack_op {
	65	struct op_dest dest;
	66	struct op_src src;
	67	};
	68
	69	void arch_initial_func_cfi_state(struct cfi_state *state);
	70
442f04c3 JP	71	int arch_decode_instruction(struct elf elf, struct section sec,
442f04c3 JP	72	unsigned long offset, unsigned int maxlen,
9fe7b764	73	unsigned int len, enum insn_type type,
baa41469 JP	74	unsigned long immediate, struct stack_op op);
	75
	76	bool arch_callee_saved_reg(unsigned char reg);
442f04c3 JP	77
442f04c3 JP	78	#endif /* _ARCH_H */