From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gnu.wildebeest.org (wildebeest.demon.nl [212.238.236.112]) by sourceware.org (Postfix) with ESMTPS id 6202F38618A5 for ; Thu, 11 Mar 2021 17:16:46 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 6202F38618A5 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=klomp.org Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=mark@klomp.org 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 069BA300072C; Thu, 11 Mar 2021 18:16:44 +0100 (CET) Received: by tarox.wildebeest.org (Postfix, from userid 1000) id B44D841A03B3; Thu, 11 Mar 2021 18:16:44 +0100 (CET) Message-ID: <6fb8e0f870686efc61715588510cccb70aa05eff.camel@klomp.org> Subject: Re: [PATCH] DWARF reader: Comment ARM32 ELF address interpretation From: Mark Wielaard To: Giuliano Procida , libabigail@sourceware.org Cc: dodji@seketeli.org, kernel-team@android.com, maennich@google.com Date: Thu, 11 Mar 2021 18:16:44 +0100 In-Reply-To: <20210310122254.2860952-1-gprocida@google.com> References: <20210310122254.2860952-1-gprocida@google.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Evolution 3.28.5 (3.28.5-10.el7) Mime-Version: 1.0 X-Spam-Status: No, score=-5.1 required=5.0 tests=BAYES_00, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libabigail@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Mailing list of the Libabigail project List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Mar 2021 17:16:47 -0000 Hi, On Wed, 2021-03-10 at 12:22 +0000, Giuliano Procida wrote: > Bug 27552 - libabigail needs to interpret ARM32 symbol addresses > specially BTW. I tried to get this correct for elfutils when using the libdwfl dwfl_module_addrsym and dwfl_module_addrinfo functions: https://sourceware.org/bugzilla/show_bug.cgi?id=3D27564 Has a proposed patch that needs a bit more testing (and maybe a tweak). libabigail doesn't use these functions, but one benefit of them is that they also handle the case of ppc function descriptors (that is old style ppc32 and ppc64be). Cheers, Mark