From patchwork Thu Sep 26 17:55:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kees Cook X-Patchwork-Id: 1168108 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 46fPMc6tmnz9sP3 for ; Fri, 27 Sep 2019 04:58:20 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.b="Yg3+62ar"; dkim-atps=neutral Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 46fPMc50KpzDqgB for ; Fri, 27 Sep 2019 04:58:20 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=chromium.org (client-ip=2607:f8b0:4864:20::641; helo=mail-pl1-x641.google.com; envelope-from=keescook@chromium.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.b="Yg3+62ar"; dkim-atps=neutral Received: from mail-pl1-x641.google.com (mail-pl1-x641.google.com [IPv6:2607:f8b0:4864:20::641]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 46fNBY5DQ1zDqmq for ; Fri, 27 Sep 2019 04:05:25 +1000 (AEST) Received: by mail-pl1-x641.google.com with SMTP id f19so1640472plr.3 for ; Thu, 26 Sep 2019 11:05:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=oto3YJoz+uDS7YkHckkDLPsuLHSJE59Ic1Zvlvk3JIM=; b=Yg3+62araTz65OUjSMd7uRtDTc4qLv27ScfzOQEBsjmErC4baR+vactZeQ8EDHTDl3 4m6/i6nTkUszRwcGPx+4rzXQZxnWhhz2/IpIkxEyLfsUcTwCPuJ3shP5kaVVlXFxeae6 oJjvZwVhpbm6kHMwMmWob89Fc5KJC8pyBS2O0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=oto3YJoz+uDS7YkHckkDLPsuLHSJE59Ic1Zvlvk3JIM=; b=CkHoCloV4Vfa4wLGK4otIzyl4mRWIG37EYMt8Owk8qyks75qBz6Cfz1L7thd4ofKcC 0VAU+y8TjSwObmH4EKJ7v5g5YY5+a4ZpEVRoLGkIRh4X+WWjpI3x+J+eRuSrfLNgD4aH vZ5E3N5K3NeexKKRtvE6lGoUSIiovGK8nzdHGKU4FAEOZ7OmvdNAyjDeGD4HE7WFwAmD jTyhZyDkYatD5OX3CRYZI7AvPK5XfFqZ4Ngsf1YQcjLTCnw13OX+1JEn2oQNqxwxNpmH LtuChkgruB3I0NhpRnyy93Kqy2hI/SkNwi+Kjg9Hg4XgoW87i8T8vk5iKTpUcOL/k3Vg JFFg== X-Gm-Message-State: APjAAAWU0KBr+H7wwkfaDE8WI2KRd0Q7VxdG2xTvVuKvagYv5VHHv0ty OKRnbf/p3EbBXlDRzzJYzGpmgg== X-Google-Smtp-Source: APXvYqyRIx3xRHb+mNaLLP0zVX1hp9OZQXgJDPhnQfQ+Lb8Ihhv0yx8B8A03PaGE2C0DjuqCQpfKMg== X-Received: by 2002:a17:902:be0c:: with SMTP id r12mr5340803pls.190.1569521121688; Thu, 26 Sep 2019 11:05:21 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id k15sm3366000pfa.65.2019.09.26.11.05.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Sep 2019 11:05:20 -0700 (PDT) From: Kees Cook To: Thomas Gleixner Subject: [PATCH 23/29] parisc: Move EXCEPTION_TABLE to RO_DATA segment Date: Thu, 26 Sep 2019 10:55:56 -0700 Message-Id: <20190926175602.33098-24-keescook@chromium.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190926175602.33098-1-keescook@chromium.org> References: <20190926175602.33098-1-keescook@chromium.org> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Michal Simek , linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org, Kees Cook , Arnd Bergmann , linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org, Dave Hansen , x86@kernel.org, Yoshinori Sato , Ingo Molnar , Borislav Petkov , linux-parisc@vger.kernel.org, Andy Lutomirski , "H. Peter Anvin" , Rick Edgecombe , linuxppc-dev@lists.ozlabs.org, linux-c6x-dev@linux-c6x.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" The EXCEPTION_TABLE is read-only, so collapse it into RO_DATA. Signed-off-by: Kees Cook --- arch/parisc/kernel/vmlinux.lds.S | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S index 12b3d7d5e9e4..1dc2f71e62b1 100644 --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -19,6 +19,7 @@ *(.data..vm0.pte) #define CC_USING_PATCHABLE_FUNCTION_ENTRY +#define RO_DATA_EXCEPTION_TABLE_ALIGN 8 #include @@ -129,9 +130,6 @@ SECTIONS RO_DATA(8) - /* RO because of BUILDTIME_EXTABLE_SORT */ - EXCEPTION_TABLE(8) - /* unwind info */ .PARISC.unwind : { __start___unwind = .;