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objtool: Move checking code to check.c 

In preparation for the new 'objtool undwarf generate' command, which
will rely on 'objtool check', move the checking code from
builtin-check.c to check.c where it can be used by other commands.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Reviewed-by: Jiri Slaby <jslaby@suse.cz>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: live-patching@vger.kernel.org
Link: http://lkml.kernel.org/r/294c5c695fd73c1a5000bbe5960a7c9bec4ee6b4.1498659915.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Josh Poimboeuf 2017-06-28 10:11:05 -05:00 committed by Ingo Molnar
parent 4d8a991d46
commit dcc914f44f
4 changed files with 1328 additions and 1268 deletions
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1
tools/objtool/Build
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@ -1,5 +1,6 @@
objtool-y += arch/$(SRCARCH)/
objtool-y += builtin-check.o
objtool-y += check.o
objtool-y += elf.o
objtool-y += special.o
objtool-y += objtool.o

1281
tools/objtool/builtin-check.c
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1263
tools/objtool/check.c Normal file
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51
tools/objtool/check.h Normal file
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@ -0,0 +1,51 @@
/*
* 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 "arch.h"
#include <linux/hashtable.h>
struct instruction {
struct list_head list;
struct hlist_node hash;
struct section *sec;
unsigned long offset;
unsigned int len, state;
unsigned char type;
unsigned long immediate;
bool alt_group, visited, dead_end;
struct symbol *call_dest;
struct instruction *jump_dest;
struct list_head alts;
struct symbol *func;
};
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);
#endif /* _CHECK_H */