[linux-2.6-block.git] / tools / objtool / check.h

/*
 * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _CHECK_H
#define _CHECK_H

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

struct insn_state {
	struct cfi_reg cfa;
	struct cfi_reg regs[CFI_NUM_REGS];
	int stack_size;
	bool bp_scratch;
	bool drap;
	int drap_reg;
};

struct instruction {
	struct list_head list;
	struct hlist_node hash;
	struct section *sec;
	unsigned long offset;
	unsigned int len;
	unsigned char type;
	unsigned long immediate;
	bool alt_group, visited, dead_end, ignore;
	struct symbol *call_dest;
	struct instruction *jump_dest;
	struct list_head alts;
	struct symbol *func;
	struct stack_op stack_op;
	struct insn_state state;
};

struct objtool_file {
	struct elf *elf;
	struct list_head insn_list;
	DECLARE_HASHTABLE(insn_hash, 16);
	struct section *rodata, *whitelist;
	bool ignore_unreachables, c_file;
};

int check(const char *objname, bool nofp);

#define for_each_insn(file, insn)					\
	list_for_each_entry(insn, &file->insn_list, list)

#endif /* _CHECK_H */
Commit	Line	Data
dcc914f4 JP	1	/*
	2	* Copyright (C) 2017 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 _CHECK_H
	19	#define _CHECK_H
	20
	21	#include <stdbool.h>
	22	#include "elf.h"
baa41469	23	#include "cfi.h"
dcc914f4 JP	24	#include "arch.h"
	25	#include <linux/hashtable.h>
	26
baa41469 JP	27	struct insn_state {
	28	struct cfi_reg cfa;
	29	struct cfi_reg regs[CFI_NUM_REGS];
	30	int stack_size;
	31	bool bp_scratch;
	32	bool drap;
	33	int drap_reg;
	34	};
	35
dcc914f4 JP	36	struct instruction {
	37	struct list_head list;
	38	struct hlist_node hash;
	39	struct section *sec;
	40	unsigned long offset;
baa41469	41	unsigned int len;
dcc914f4 JP	42	unsigned char type;
dcc914f4 JP	43	unsigned long immediate;
baa41469	44	bool alt_group, visited, dead_end, ignore;
dcc914f4 JP	45	struct symbol *call_dest;
	46	struct instruction *jump_dest;
	47	struct list_head alts;
	48	struct symbol *func;
baa41469 JP	49	struct stack_op stack_op;
baa41469 JP	50	struct insn_state state;
dcc914f4 JP	51	};
	52
	53	struct objtool_file {
	54	struct elf *elf;
	55	struct list_head insn_list;
	56	DECLARE_HASHTABLE(insn_hash, 16);
	57	struct section rodata, whitelist;
	58	bool ignore_unreachables, c_file;
	59	};
	60
	61	int check(const char *objname, bool nofp);
	62
baa41469 JP	63	#define for_each_insn(file, insn) \
	64	list_for_each_entry(insn, &file->insn_list, list)
	65
dcc914f4	66	#endif /* _CHECK_H */