forked from Minki/linux
baa41469a7
This is a major rewrite of objtool. Instead of only tracking frame pointer changes, it now tracks all stack-related operations, including all register saves/restores. In addition to making stack validation more robust, this also paves the way for undwarf generation. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Jiri Slaby <jslaby@suse.cz> 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/678bd94c0566c6129bcc376cddb259c4c5633004.1498659915.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/*
|
|
* Copyright (C) 2015-2017 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 _OBJTOOL_CFI_H
|
|
#define _OBJTOOL_CFI_H
|
|
|
|
#define CFI_UNDEFINED -1
|
|
#define CFI_CFA -2
|
|
#define CFI_SP_INDIRECT -3
|
|
#define CFI_BP_INDIRECT -4
|
|
|
|
#define CFI_AX 0
|
|
#define CFI_DX 1
|
|
#define CFI_CX 2
|
|
#define CFI_BX 3
|
|
#define CFI_SI 4
|
|
#define CFI_DI 5
|
|
#define CFI_BP 6
|
|
#define CFI_SP 7
|
|
#define CFI_R8 8
|
|
#define CFI_R9 9
|
|
#define CFI_R10 10
|
|
#define CFI_R11 11
|
|
#define CFI_R12 12
|
|
#define CFI_R13 13
|
|
#define CFI_R14 14
|
|
#define CFI_R15 15
|
|
#define CFI_RA 16
|
|
#define CFI_NUM_REGS 17
|
|
|
|
struct cfi_reg {
|
|
int base;
|
|
int offset;
|
|
};
|
|
|
|
struct cfi_state {
|
|
struct cfi_reg cfa;
|
|
struct cfi_reg regs[CFI_NUM_REGS];
|
|
};
|
|
|
|
#endif /* _OBJTOOL_CFI_H */
|