From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gateway33.websitewelcome.com (gateway33.websitewelcome.com [192.185.145.87]) by sourceware.org (Postfix) with ESMTPS id 54078385800B for ; Sat, 4 Dec 2021 20:38:54 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 54078385800B Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=tromey.com Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=tromey.com Received: from cm14.websitewelcome.com (cm14.websitewelcome.com [100.42.49.7]) by gateway33.websitewelcome.com (Postfix) with ESMTP id A1A9040F006B for ; Sat, 4 Dec 2021 14:38:47 -0600 (CST) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with SMTP id tbnzmrOGEQOwQtbnzmwtBD; Sat, 04 Dec 2021 14:38:47 -0600 X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=49D06vJnNPd94RQhQgT6Ag1A3xnpjVTog7Xj4ElTGTg=; b=NDV9JJk6CJ3q+eLBZu1ajUH39E dIjuaiOAeIJhpcFxQj2HnZtOa8+ihJ+XohVss1YS5rf8p76CIVAitzMsNAoap/eO8PsS2/HlrzHL0 ZHlTntC33SoJrwnTXgDhYb+V5; Received: from 97-122-84-67.hlrn.qwest.net ([97.122.84.67]:51986 helo=localhost.localdomain) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mtbnz-000epk-2P; Sat, 04 Dec 2021 13:38:47 -0700 From: Tom Tromey To: gdb-patches@sourceware.org Cc: Tom Tromey Subject: [PATCH v3 02/33] Fix latent bug in read_addrmap_from_aranges Date: Sat, 4 Dec 2021 13:38:13 -0700 Message-Id: <20211204203844.1188999-3-tom@tromey.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211204203844.1188999-1-tom@tromey.com> References: <20211204203844.1188999-1-tom@tromey.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - sourceware.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 97.122.84.67 X-Source-L: No X-Exim-ID: 1mtbnz-000epk-2P X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 97-122-84-67.hlrn.qwest.net (localhost.localdomain) [97.122.84.67]:51986 X-Source-Auth: tom+tromey.com X-Email-Count: 3 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-Spam-Status: No, score=-3031.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, GIT_PATCH_0, JMQ_SPF_NEUTRAL, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_PASS, SPF_NEUTRAL, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 04 Dec 2021 20:38:57 -0000 Tom de Vries found a failure that we tracked down to a latent bug in read_addrmap_from_aranges (previously create_addrmap_from_aranges). The bug is that this code can erroneously reject .debug_aranges when dwz is in use, due to CUs at duplicate offsets. Because aranges can't refer to a CU coming from the dwz file, the fix is to simply skip such CUs in the loop. --- gdb/dwarf2/read.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c index ce579b1ed75..1eac4d92c69 100644 --- a/gdb/dwarf2/read.c +++ b/gdb/dwarf2/read.c @@ -2602,8 +2602,9 @@ read_addrmap_from_aranges (dwarf2_per_objfile *per_objfile, { /* A TU will not need aranges, and skipping them here is an easy way of ignoring .debug_types -- and possibly seeing a - duplicate section offset -- entirely. */ - if (per_cu->is_debug_types) + duplicate section offset -- entirely. The same applies to + units coming from a dwz file. */ + if (per_cu->is_debug_types || per_cu->is_dwz) continue; const auto insertpair -- 2.31.1