From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4FB97C433DF for ; Wed, 14 Oct 2020 07:38:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB3F920878 for ; Wed, 14 Oct 2020 07:38:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="I7ITeHCt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728267AbgJNHiK (ORCPT ); Wed, 14 Oct 2020 03:38:10 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:27879 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728208AbgJNHiK (ORCPT ); Wed, 14 Oct 2020 03:38:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1602661089; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=SAEY/Zpbkl/XgbPMQLeAmZDA/PzkXRRi5ZfbA8Z/nCY=; b=I7ITeHCtPqkgx8wSFguSEYFLsNV90zS0k3wAGSZ2dXHpY7R9SYqd/rV/6A8wodbw2hUwhR 4ZfKWDgMQ3DfdoncRoDeJMtaeGXEMB2m+tla3daPwF1zlMefZfMlDHs3VVeFChPG42ZhT6 ofAOp9etekiYokz8QXM+/VJh238H5CU= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-344-nXMqgdlYNDCmXCbmx5HrhA-1; Wed, 14 Oct 2020 03:38:07 -0400 X-MC-Unique: nXMqgdlYNDCmXCbmx5HrhA-1 Received: by mail-wm1-f70.google.com with SMTP id w23so240476wmi.1 for ; Wed, 14 Oct 2020 00:38:06 -0700 (PDT) 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:mime-version :content-transfer-encoding; bh=SAEY/Zpbkl/XgbPMQLeAmZDA/PzkXRRi5ZfbA8Z/nCY=; b=f6DGtajMmATQDtIdMaV5Nh1fEQTAY4LHKTP+kly7swFg4D+s3OQnhfGu26hwQsMeLk eWDTOZ0qhy5j0AehuBXmPDKUipkPaU5XbuKoggukJu0Ul0n+PuqY9ui3Ohy8vnSVFoH3 VSUxwA6EzGnBKrFyjXDXbUSCr7RKiCEYfFKs6qFsJG6JxxhVedwLwsy0p3r5Zduu04pW 5BCpC5shw3WVeKZV2ib1vwW1O7xnCdTTn2BKZYGfIAOBLSfVcMkAy2Oxvc8rTElGjFwX 7zIMODOvssw8kzxoa4bmjjBDDQ7LSlWxOrGyll17BQm4m/YwntahG35T+4XcfecapLzY mYVg== X-Gm-Message-State: AOAM532TXFHx7xZyn4bttYhzHWA4oveQivwlzwwJPNXXugPnKzwlWSzs we+FZhP4oy75ezWDz5bXHeSBgBZA2+hBO8wk+LKTooyqkV/qgb50Jn6x+Vi+k77wafiVNKPrRke lEPDyDzuZqJrrMKhkErhoFaZ4 X-Received: by 2002:adf:cf0c:: with SMTP id o12mr3730631wrj.287.1602661085563; Wed, 14 Oct 2020 00:38:05 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyysyYOcx2r3Z2x4aRWN4/ATbE+CI9DTvphe6931ZSMbCL+aIwE8v3S6AKNv4ppKsMdUXSjtw== X-Received: by 2002:adf:cf0c:: with SMTP id o12mr3730620wrj.287.1602661085415; Wed, 14 Oct 2020 00:38:05 -0700 (PDT) Received: from redfedo.redhat.com ([2a01:cb14:499:3d00:cd47:f651:9d80:157a]) by smtp.gmail.com with ESMTPSA id y66sm2618360wmd.14.2020.10.14.00.38.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Oct 2020 00:38:04 -0700 (PDT) From: Julien Thierry To: linux-kernel@vger.kernel.org Cc: jpoimboe@redhat.com, peterz@infradead.org, mbenes@suse.cz, raphael.gault@arm.com, benh@kernel.crashing.org, Julien Thierry Subject: [PATCH v3 0/3] objtool: Extend CFA updating/checking Date: Wed, 14 Oct 2020 08:37:59 +0100 Message-Id: <20201014073802.436630-1-jthierry@redhat.com> X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, The following patches are the result of limitation found on the CFA management code when trying to validate arm64 frames. I tried to keep things simple and not contradict current CFA management logic nor introduce too many corner cases. Changes since V2[1]: - Simplify cfa offset checking for BP and return address [1] https://lkml.org/lkml/2020/9/28/354 Thanks, Julien Julien Thierry (3): objtool: check: Fully validate the stack frame objtool: check: Support addition to set CFA base objtool: check: Make SP memory operation match PUSH/POP semantics tools/objtool/check.c | 46 +++++++++++++++++++++++++++++++++++++++---- 1 file changed, 42 insertions(+), 4 deletions(-) -- 2.25.4