From patchwork Mon Jul 15 07:20:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jia He X-Patchwork-Id: 812896 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 162241836E5; Mon, 15 Jul 2024 07:20:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721028038; cv=none; b=IYjHIK4KXzfcEff3KhlZF6vwaiUNpNx1btcHeWJnzL+KMvV7vdvIUGyisABU54hG+CDpq5Mo+UQw+2btsjLWm3LmxPLoYsgjysTCiLzJDzSZgPPtz02iUczHZZb3g5hBiPk2MM6GzU/Ac3J5kVo1JH/6ufMuH5tMccDb14qKwFk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721028038; c=relaxed/simple; bh=a/WIuqv1tl1tle3ziL/NH5UYypFiStw8mDYKOrs/UzM=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=qdgsHlOoSvtl8NqiWJMVKULDfjL6qlgZU5E6vzWsOFEGoBakRm76cGnGkb6soZwDtR5iR7u8Fn9vMYrGAPmm7lrkp4Q3RF31tce31gwYmjRHwQQYT1FXRFibfuF9WrDmue/nbjafZT5m5zOulSwCJKatRBY00FYAQ67FZ1BKuBQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 46645DA7; Mon, 15 Jul 2024 00:21:00 -0700 (PDT) Received: from entos-yitian-01.shanghai.arm.com (entos-yitian-01.shanghai.arm.com [10.169.206.96]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id DF92C3F762; Mon, 15 Jul 2024 00:20:31 -0700 (PDT) From: Jia He To: Herbert Xu , "David S. Miller" , Catalin Marinas , linux-crypto@vger.kernel.org Cc: Will Deacon , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jia He Subject: [PATCH] crypto: arm64/poly1305 - move data to rodata section Date: Mon, 15 Jul 2024 07:20:23 +0000 Message-Id: <20240715072023.61032-1-justin.he@arm.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 When objtool gains support for ARM in the future, it may encounter issues disassembling the following data in the .text section: > .Lzeros: > .long 0,0,0,0,0,0,0,0 > .asciz "Poly1305 for ARMv8, CRYPTOGAMS by \@dot-asm" > .align 2 Move it to .rodata which is a more appropriate section for read-only data. Signed-off-by: Jia He --- Inspired by commit 1253cab8a352, although currently objtool hasn't been supported on Arm, we should do some preparation(this patch) firstly. arch/arm64/crypto/poly1305-armv8.pl | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/crypto/poly1305-armv8.pl b/arch/arm64/crypto/poly1305-armv8.pl index cbc980fb02e3..bcb70c9541e9 100644 --- a/arch/arm64/crypto/poly1305-armv8.pl +++ b/arch/arm64/crypto/poly1305-armv8.pl @@ -885,10 +885,13 @@ poly1305_blocks_neon: ret .size poly1305_blocks_neon,.-poly1305_blocks_neon +.pushsection .rodata .align 5 .Lzeros: .long 0,0,0,0,0,0,0,0 .asciz "Poly1305 for ARMv8, CRYPTOGAMS by \@dot-asm" +.popsection + .align 2 #if !defined(__KERNEL__) && !defined(_WIN64) .comm OPENSSL_armcap_P,4,4