From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pj1-f49.google.com (mail-pj1-f49.google.com [209.85.216.49]) by sourceware.org (Postfix) with ESMTPS id 83712385B834 for ; Wed, 25 Mar 2020 05:36:04 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 83712385B834 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=maskray.me Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=emacsray@gmail.com Received: by mail-pj1-f49.google.com with SMTP id mj6so550379pjb.5 for ; Tue, 24 Mar 2020 22:36:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-disposition; bh=4PQKhQ8CdyBLuOuoJHK/9h22IrSmcOtn0uWZe5RsamA=; b=NnNHiRLBiMblu7NGzahLXYgElp0NIs7kUidL0z4sPxfmV60JPFnEXEN1QMuCsCYWLj X8Wn/b4N0VdnRtUihMCOGZenVV1f8zjqG+oxzPhuA5cOC0PAukfjj87prHABB0POym+J o13i0fTp7gVae067wCKP+0hzXbrmLrIhV9/qmDZC10JcSutaivZpaNHQco3RFgKAm1WY S/UGQTY2CHfaw1JAyxeuO2CR7v+KSFf+yhy0HPRUBz9Xs9Z8bIRLffrlO1PZzYpaxEdW xgw7MZQZZWZw4JnUdWLwHo1Gj60Wtj0FspywSnUkBckPM5jyI3y3+WVEmQFxIO59noHF 4ucA== X-Gm-Message-State: ANhLgQ1lPckt2Z94FfEPMgsqfH0/kDvzCfzJTP2wjedejTJGcVXHuTB4 qyCaISISbCcC4wKFvTJ9A8CCRR19 X-Google-Smtp-Source: ADFU+vtRHi98j2qmrRLCujEek9joPFEQyj7Qia/qdOpjhHvr0ymMGDAQfWNTV0Mfa6x17BXNhsn9dA== X-Received: by 2002:a17:902:7297:: with SMTP id d23mr1636873pll.63.1585114563368; Tue, 24 Mar 2020 22:36:03 -0700 (PDT) Received: from localhost ([2601:647:4b01:ae80::51fb]) by smtp.gmail.com with ESMTPSA id c128sm17216666pfa.11.2020.03.24.22.36.02 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Mar 2020 22:36:02 -0700 (PDT) Date: Tue, 24 Mar 2020 22:36:01 -0700 From: Fangrui Song To: binutils@sourceware.org Subject: Error for the second binding (.local/.weak/.globl) Message-ID: <20200325053601.w6vxbh5ignc6bt65@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline X-Spam-Status: No, score=-2.3 required=5.0 tests=BAYES_00, FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, KAM_DMARC_STATUS, KAM_INFOUSMEBIZ, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, 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: 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: Wed, 25 Mar 2020 05:36:05 -0000 # a.s .globl weak1 .weak weak1 weak1: .weak weak2 .globl weak2 weak2: .local weak3 .weak weak3 weak3: .weak weak4 .local weak4 weak4: .weak (config/obj-elf.c) apparently overrides .globl (read.c) and .local (config/obj-elf.c) but this seems accidental rather than intentional. % as a.s -o a.o && readelf -Ws a.o Symbol table '.symtab' contains 8 entries: Num: Value Size Type Bind Vis Ndx Name 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND 1: 0000000000000000 0 SECTION LOCAL DEFAULT 1 2: 0000000000000000 0 SECTION LOCAL DEFAULT 2 3: 0000000000000000 0 SECTION LOCAL DEFAULT 3 4: 0000000000000000 0 NOTYPE WEAK DEFAULT 1 weak1 5: 0000000000000000 0 NOTYPE WEAK DEFAULT 1 weak2 6: 0000000000000000 0 NOTYPE WEAK DEFAULT 1 weak3 7: 0000000000000000 0 NOTYPE WEAK DEFAULT 1 weak4 clang integrated assembler (LLVM MC) let the last directive win. % llvm-mc -filetype=obj a.s -o a.o && readelf -Ws a.o Symbol table '.symtab' contains 5 entries: Num: Value Size Type Bind Vis Ndx Name 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT 2 weak4 2: 0000000000000000 0 NOTYPE WEAK DEFAULT 2 weak1 3: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 2 weak2 4: 0000000000000000 0 NOTYPE WEAK DEFAULT 2 weak3 Should the assembler error for the second binding directive? Should the assembler error for the second visibility directive? .protected / .hidden / .internal