From 2f0f9e9ad7b3459c5c54ef2c03145a98e65dd158 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 25 Feb 2019 11:10:55 +0100
Subject: objtool: Add Direction Flag validation

Having DF escape is BAD(tm).

Linus; you suggested this one, but since DF really is only used from
ASM and the failure case is fairly obvious, do we really need this?

OTOH the patch is fairly small and simple, so let's just do this
to demonstrate objtool's superior awesomeness.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/objtool/arch.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'tools/objtool/arch.h')

diff --git a/tools/objtool/arch.h b/tools/objtool/arch.h
index 467c2fe798a9..7a111a77b7aa 100644
--- a/tools/objtool/arch.h
+++ b/tools/objtool/arch.h
@@ -35,7 +35,9 @@
 #define INSN_NOP		10
 #define INSN_STAC		11
 #define INSN_CLAC		12
-#define INSN_OTHER		13
+#define INSN_STD		13
+#define INSN_CLD		14
+#define INSN_OTHER		15
 #define INSN_LAST		INSN_OTHER
 
 enum op_dest_type {
-- 
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