From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5764 invoked by alias); 25 May 2018 13:10:12 -0000 Mailing-List: contact elfutils-devel-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Post: List-Help: List-Subscribe: Sender: elfutils-devel-owner@sourceware.org Received: (qmail 5602 invoked by uid 89); 25 May 2018 13:10:10 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Checked: by ClamAV 0.99.4 on sourceware.org X-Virus-Found: No X-Spam-SWARE-Status: No, score=-6.9 required=5.0 tests=BAYES_00,GIT_PATCH_1,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy= X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00,GIT_PATCH_1,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on sourceware.org X-Spam-Level: X-HELO: gnu.wildebeest.org Received: from wildebeest.demon.nl (HELO gnu.wildebeest.org) (212.238.236.112) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 25 May 2018 13:10:04 +0000 Received: from tarox.wildebeest.org (tarox.wildebeest.org [172.31.17.39]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by gnu.wildebeest.org (Postfix) with ESMTPSA id CBB85302BB02 for ; Fri, 25 May 2018 15:10:01 +0200 (CEST) Received: by tarox.wildebeest.org (Postfix, from userid 1000) id 8888A4000867; Fri, 25 May 2018 15:10:01 +0200 (CEST) Message-ID: <1527253801.2911.27.camel@klomp.org> Subject: Re: [PATCH] libdw: Support DW_OP_addrx/constx and split DWARF addrx/constx support. From: Mark Wielaard To: elfutils-devel@sourceware.org Date: Fri, 25 May 2018 13:10:00 -0000 In-Reply-To: <1526987421-32644-1-git-send-email-mark@klomp.org> References: <1526987421-32644-1-git-send-email-mark@klomp.org> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Evolution 3.22.6 (3.22.6-14.el7) Mime-Version: 1.0 X-Spam-Flag: NO X-IsSubscribed: yes X-SW-Source: 2018-q2/txt/msg00085.txt.bz2 On Tue, 2018-05-22 at 13:10 +0200, Mark Wielaard wrote: > DW_OP_addrx/constx and GNU DebugFission DW_OP_GNU_addr/const_index take > as argument an index into the .debug_addr section for the associated CU. > This index gets resolved through dwarf_getlocation_attr. A new fake addr > CU is created per Dwarf for use with this new attribute. For split DWARF > files, the IDX_debug_addr gets replaced with the skeleton section and the > addr base is resolved immediately when constructing the split DWARF CU. > Move __libdw_cu_addr_base to libdwP.h to share with eu-readelf. Also > make it possible to resolve addrx[1234]/GNU_addr_index also as constant > indexes to (also) show when displaying these attributes in eu-readelf. >=20 > A new varlocs tests is added to test the resolving for both the DWARF4 > and DWARF5 DW_OP variants. And now that addrx forms are resolved in > split DWARF files add the new DIEs with "single ranges" (those DIEs that > have a lowpc/highpc attribute pair) to run-all-dwarf-ranges.sh. Pushed to master.