linux-kernel - [PATCH 3/3] selftests/x86: Add a missing .note.GNU-stack section to thunks

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Message-Id: <850bb26d395a4091418f8fc2763359eb7b99ee30.1614059335.git.luto@kernel.org>
Date:   Mon, 22 Feb 2021 21:50:29 -0800
From:   Andy Lutomirski <luto@...nel.org>
To:     x86@...nel.org
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Andy Lutomirski <luto@...nel.org>
Subject: [PATCH 3/3] selftests/x86: Add a missing .note.GNU-stack section to thunks_32.S

test_syscall_vdso_32 ended up with an executable stacks because the asm was
missing the annotation that says that it is modern and doesn't need an
executable stack.  Add the annotation.

This was missed in commit aeaaf005da1d ("selftests/x86: Add missing
.note.GNU-stack sections").

Signed-off-by: Andy Lutomirski <luto@...nel.org>
---
 tools/testing/selftests/x86/thunks_32.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/x86/thunks_32.S b/tools/testing/selftests/x86/thunks_32.S
index a71d92da8f46..f3f56e681e9f 100644
--- a/tools/testing/selftests/x86/thunks_32.S
+++ b/tools/testing/selftests/x86/thunks_32.S
@@ -45,3 +45,5 @@ call64_from_32:
 	ret
 
 .size call64_from_32, .-call64_from_32
+
+.section .note.GNU-stack,"",%progbits
-- 
2.29.2