From patchwork Fri Apr 29 09:43:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Zhongjin X-Patchwork-Id: 12831725 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 09308C433EF for ; Fri, 29 Apr 2022 10:09:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=FB3gPsnTfnmOGo1spAC9OezcRTy3I5ra/RhW4oHqa+g=; b=dWHyTyubqcqozv 9ntW61EraF9KXUl40Bxnpzi8TyG87pcxeUL6R5CBGVFFOvx3So8k/d02rTnbCipIVahnEkaUwgjpC JNcTEQCLHyoadD597i+z3a/8PfvAdW0FofLuuOAzycrVtlrfThGTV7YDcsxoorqVnnd5XKK6QPC7r agpJln9EmfkVNKGdJV2+HrqnYAOsvGEqc9+jiR8ad671Jzl2ApjvdvV+2u4QqW4fm2sAnyCgHvgBF VysB6zUyigQfUC10Wdjpw96Rokhuz/L/2yeaZNnIHT0tdVABWhqYxBYRSjzh2HHSBIlE593/OeH6h CLo8K/xKxBI1NLtUIdNA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nkNXf-00AdFc-Ez; Fri, 29 Apr 2022 10:08:03 +0000 Received: from desiato.infradead.org ([90.155.92.199]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nkNC7-00ATkN-3p for linux-arm-kernel@bombadil.infradead.org; Fri, 29 Apr 2022 09:45:47 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:CC:To:From:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=p6wXQNiDNIy5fRLp/YyMXIKsoeOQGvtfCiQ3xN7oTR4=; b=RrqLvUd310mzzH1llMRceRxStX NQShe7llrMhDldxLpKlvMN68iDD/HPapVYoRUF7K661yazeuImbnlizVxs/+x1ivjwYid2xKwQdz2 XnoJtR99PkSMV1ZfqejS6uWn9hYR8cN/dtuzomLVYodnJ7TaTYVZt+oRlE8wT1UswWzhzTmZV5nSa iHgYK6J+YWoGA3Ytm7Rg7YO7MDKI8j2fxLQaUDInCq656gSQi2KZ/Zx3fQXaJjo+ExBHy4i2A1uaL N0OGxPLjqIv00ms9nxFtuGPEfjAFAaM1X4vYdhaO2MpFAmteTgo6dbk8ac4WjX5ijV077gal2hue7 q6GJ7Euw==; Received: from szxga08-in.huawei.com ([45.249.212.255]) by desiato.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nkNC2-009ZuE-65 for linux-arm-kernel@lists.infradead.org; Fri, 29 Apr 2022 09:45:45 +0000 Received: from dggpemm500021.china.huawei.com (unknown [172.30.72.53]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4KqSJB4TBqz1JBnF; Fri, 29 Apr 2022 17:44:42 +0800 (CST) Received: from dggpemm500013.china.huawei.com (7.185.36.172) by dggpemm500021.china.huawei.com (7.185.36.109) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Fri, 29 Apr 2022 17:45:13 +0800 Received: from ubuntu1804.huawei.com (10.67.175.36) by dggpemm500013.china.huawei.com (7.185.36.172) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Fri, 29 Apr 2022 17:45:13 +0800 From: Chen Zhongjin To: , , CC: , , , , , , , , , , , , , , Subject: [RFC PATCH v4 23/37] arm64: kernel: Skip validation of sigreturn32.o Date: Fri, 29 Apr 2022 17:43:41 +0800 Message-ID: <20220429094355.122389-24-chenzhongjin@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220429094355.122389-1-chenzhongjin@huawei.com> References: <20220429094355.122389-1-chenzhongjin@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.175.36] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpemm500013.china.huawei.com (7.185.36.172) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220429_104543_042498_A941004F X-CRM114-Status: UNSURE ( 6.64 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Julien Thierry sigreturn32.o contains aarch32 getting copied to the VDSO for compat user tasks. This code shouldn't get validated by arm64 objtool. Signed-off-by: Julien Thierry --- arch/arm64/kernel/Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile index c4f01bfe79b4..eee5eb7d782b 100644 --- a/arch/arm64/kernel/Makefile +++ b/arch/arm64/kernel/Makefile @@ -40,6 +40,9 @@ $(obj)/%.stub.o: $(obj)/%.o FORCE obj-$(CONFIG_COMPAT) += sys32.o signal32.o \ sys_compat.o obj-$(CONFIG_COMPAT) += sigreturn32.o +ifeq ($(CONFIG_COMPAT), y) +OBJECT_FILES_NON_STANDARD_sigreturn32.o := y +endif obj-$(CONFIG_KUSER_HELPERS) += kuser32.o OBJECT_FILES_NON_STANDARD_kuser32.o := y