From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by sourceware.org (Postfix) with ESMTP id 1845139C382E for ; Thu, 5 Nov 2020 10:02:07 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 1845139C382E Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-41-iBVlZn4YMRmDPGXe1pOOtQ-1; Thu, 05 Nov 2020 05:02:03 -0500 X-MC-Unique: iBVlZn4YMRmDPGXe1pOOtQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id ED5CD87951B; Thu, 5 Nov 2020 10:02:01 +0000 (UTC) Received: from [10.36.113.236] (ovpn-113-236.ams2.redhat.com [10.36.113.236]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 06E4A6266E; Thu, 5 Nov 2020 10:02:00 +0000 (UTC) To: Fangrui Song , Rasmus Villemoes Cc: binutils@sourceware.org References: <01faf722-46fc-e0a6-6a58-2490e07937d6@redhat.com> <7ad73b09-c551-9a17-f0fa-0839919158b4@rasmusvillemoes.dk> <0fc094c4-c915-511c-c5da-2654811fbeec@redhat.com> <2ec24e2e-42aa-162f-f8c4-f7588956093b@redhat.com> <2e944a37-8d3d-17a2-ea94-97782972678a@rasmusvillemoes.dk> <890f98cc-8c4d-8286-890c-d8071669f4a1@redhat.com> <4c7c5e55-33d3-ab28-c220-728f7e13d6a9@rasmusvillemoes.dk> <86de3a43-3ad1-ec37-e509-11d5b3a42ce0@redhat.com> <4aecc1e8-40f7-7a6f-7072-62e1193726d2@rasmusvillemoes.dk> <20201105004702.4vrqyu4h2bx4ethh@gmail.com> From: Nick Clifton Organization: Red Hat Subject: Re: [PATCH] allow empty string as argument to -Map Message-ID: <7d5f06fd-00c8-b7b8-9c33-53263fba42b8@redhat.com> Date: Thu, 5 Nov 2020 10:01:58 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.3.1 MIME-Version: 1.0 In-Reply-To: <20201105004702.4vrqyu4h2bx4ethh@gmail.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, BODY_8BITS, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, NICE_REPLY_A, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: binutils@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Binutils mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Nov 2020 10:02:08 -0000 Hi Fangrui, >>   -Map=   Put the map into .  can be relative or absolute. >>   -Map=    Put the map into /basename (outfile).map.  Overwrites existing maps. > This looks like a complex operation. Is it really needed? This actually reflects the current situation (well without the basename operation). Providing a directory name for the map option is useful as it allows build systems to use the option without having to worry about generating unique map names. >>   -Map=%        Put the map into (outfile).map.  Includes all path components in (outfile) > > Maybe -Map=%.map to avoid hard coding the extension name? Except that we already hard code the .map extension when the directory version of the option is used. But it would be simple enough to extend the specification so that: -Map=% Puts the map into (outfile).map -Map=%. Puts the map into (outfile). Cheers Nick