linux-kernel - [PATCH v2 09/20] objtool: Add xen_start

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Message-Id: <930deafa89256c60b180442df59a1bbae48f30ab.1611263462.git.jpoimboe@redhat.com>
Date:   Thu, 21 Jan 2021 15:29:25 -0600
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     x86@...nel.org
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        Sedat Dilek <sedat.dilek@...il.com>,
        Kees Cook <keescook@...omium.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        clang-built-linux@...glegroups.com, Miroslav Benes <mbenes@...e.cz>
Subject: [PATCH v2 09/20] objtool: Add xen_start_kernel() to noreturn list

xen_start_kernel() doesn't return.  Annotate it as such so objtool can
follow the code flow.

Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>
---
 tools/objtool/check.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index f88f20327bf2..5f056ddab4fa 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -160,6 +160,7 @@ static bool __dead_end_function(struct objtool_file *file, struct symbol *func,
 		"machine_real_restart",
 		"rewind_stack_do_exit",
 		"kunit_try_catch_throw",
+		"xen_start_kernel",
 	};
 
 	if (!func)
-- 
2.29.2