cregit-Linux how code gets into the kernel

Release 4.18 tools/objtool/check.h

Directory: tools/objtool
/*
 * 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 "orc.h"
#include <linux/hashtable.h>


struct insn_state {
	
struct cfi_reg cfa;
	
struct cfi_reg regs[CFI_NUM_REGS];
	
int stack_size;
	
unsigned char type;
	
bool bp_scratch;
	
bool drap;
	

int drap_reg, drap_offset;
	
struct cfi_reg vals[CFI_NUM_REGS];
};


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, hint, save, restore, ignore_alts;
	
bool retpoline_safe;
	
struct symbol *call_dest;
	
struct instruction *jump_dest;
	
struct instruction *first_jump_src;
	
struct list_head alts;
	
struct symbol *func;
	
struct stack_op stack_op;
	
struct insn_state state;
	
struct orc_entry orc;
};


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, hints;
};

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

struct instruction *find_insn(struct objtool_file *file,
			      struct section *sec, unsigned long offset);


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


#define sec_for_each_insn(file, sec, insn)				\
	for (insn = find_insn(file, sec, 0);                            \
             insn && &insn->list != &file->insn_list &&                 \
                        insn->sec == sec;                               \
             insn = list_next_entry(insn, list))


#endif /* _CHECK_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Josh Poimboeuf24196.79%777.78%
Peter Zijlstra83.21%222.22%
Total249100.00%9100.00%
Directory: tools/objtool
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.