[mirror_ubuntu-jammy-kernel.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 "objtool.h"
#include "cfi.h"

#include <asm/orc_types.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_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;
	struct list_head list;
};

struct instruction;

void arch_initial_func_cfi_state(struct cfi_init_state *state);

int arch_decode_instruction(const struct elf *elf, const struct section *sec,
			    unsigned long offset, unsigned int maxlen,
			    unsigned int *len, enum insn_type *type,
			    unsigned long *immediate,
			    struct list_head *ops_list);

bool arch_callee_saved_reg(unsigned char reg);

unsigned long arch_jump_destination(struct instruction *insn);

unsigned long arch_dest_reloc_offset(int addend);

const char *arch_nop_insn(int len);

#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>
0decf1f8	11	#include "objtool.h"
baa41469	12	#include "cfi.h"
442f04c3	13
0decf1f8 MH	14	#include <asm/orc_types.h>
0decf1f8 MH	15
9fe7b764 JP	16	enum insn_type {
	17	INSN_JUMP_CONDITIONAL,
	18	INSN_JUMP_UNCONDITIONAL,
	19	INSN_JUMP_DYNAMIC,
b68b9907	20	INSN_JUMP_DYNAMIC_CONDITIONAL,
9fe7b764 JP	21	INSN_CALL,
	22	INSN_CALL_DYNAMIC,
	23	INSN_RETURN,
	24	INSN_CONTEXT_SWITCH,
9fe7b764 JP	25	INSN_BUG,
	26	INSN_NOP,
	27	INSN_STAC,
	28	INSN_CLAC,
	29	INSN_STD,
	30	INSN_CLD,
	31	INSN_OTHER,
	32	};
442f04c3	33
baa41469 JP	34	enum op_dest_type {
	35	OP_DEST_REG,
	36	OP_DEST_REG_INDIRECT,
	37	OP_DEST_MEM,
	38	OP_DEST_PUSH,
ea24213d	39	OP_DEST_PUSHF,
baa41469 JP	40	OP_DEST_LEAVE,
	41	};
	42
	43	struct op_dest {
	44	enum op_dest_type type;
	45	unsigned char reg;
	46	int offset;
	47	};
	48
	49	enum op_src_type {
	50	OP_SRC_REG,
	51	OP_SRC_REG_INDIRECT,
	52	OP_SRC_CONST,
	53	OP_SRC_POP,
ea24213d	54	OP_SRC_POPF,
baa41469 JP	55	OP_SRC_ADD,
	56	OP_SRC_AND,
	57	};
	58
	59	struct op_src {
	60	enum op_src_type type;
	61	unsigned char reg;
	62	int offset;
	63	};
	64
	65	struct stack_op {
	66	struct op_dest dest;
	67	struct op_src src;
65ea47dc	68	struct list_head list;
baa41469 JP	69	};
baa41469 JP	70
bfb08f22 RG	71	struct instruction;
bfb08f22 RG	72
a3608f59	73	void arch_initial_func_cfi_state(struct cfi_init_state *state);
baa41469	74
0c98be81	75	int arch_decode_instruction(const struct elf elf, const struct section sec,
442f04c3	76	unsigned long offset, unsigned int maxlen,
9fe7b764	77	unsigned int len, enum insn_type type,
65ea47dc JT	78	unsigned long *immediate,
65ea47dc JT	79	struct list_head *ops_list);
baa41469 JP	80
baa41469 JP	81	bool arch_callee_saved_reg(unsigned char reg);
442f04c3	82
bfb08f22 RG	83	unsigned long arch_jump_destination(struct instruction *insn);
bfb08f22 RG	84
f1974222	85	unsigned long arch_dest_reloc_offset(int addend);
bfb08f22	86
0f1441b4 PZ	87	const char *arch_nop_insn(int len);
0f1441b4 PZ	88
442f04c3	89	#endif /* _ARCH_H */