linux-kernel - [PATCH] objtool: Add fortify_panic as _

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Message-Id: <1497532835-32704-1-git-send-email-jpoimboe@redhat.com>
Date:   Thu, 15 Jun 2017 08:20:35 -0500
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Daniel Micay <danielmicay@...il.com>,
        Kees Cook <keescook@...omium.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] objtool: Add fortify_panic as __noreturn function

From: Kees Cook <keescook@...omium.org>

CONFIG_FORTIFY_SOURCE implements fortify_panic() as a __noreturn function,
so objtool needs to know about it too.

Suggested-by: Daniel Micay <danielmicay@...il.com>
Signed-off-by: Kees Cook <keescook@...omium.org>
Tested-by: Stephen Rothwell <sfr@...b.auug.org.au>
Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>
---
 tools/objtool/builtin-check.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/objtool/builtin-check.c b/tools/objtool/builtin-check.c
index 282a60368b14..5f66697fe1e0 100644
--- a/tools/objtool/builtin-check.c
+++ b/tools/objtool/builtin-check.c
@@ -192,7 +192,8 @@ static int __dead_end_function(struct objtool_file *file, struct symbol *func,
 		"complete_and_exit",
 		"kvm_spurious_fault",
 		"__reiserfs_panic",
-		"lbug_with_loc"
+		"lbug_with_loc",
+		"fortify_panic",
 	};
 
 	if (func->bind == STB_WEAK)
-- 
2.7.4


-- 
Kees Cook
Pixel Security