From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-x236.google.com (mail-lj1-x236.google.com [IPv6:2a00:1450:4864:20::236]) by sourceware.org (Postfix) with ESMTPS id B67F13858C83 for ; Sun, 6 Nov 2022 23:07:11 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org B67F13858C83 Authentication-Results: sourceware.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=google.com Received: by mail-lj1-x236.google.com with SMTP id c25so13781307ljr.8 for ; Sun, 06 Nov 2022 15:07:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=vh3kiPY4/yv/JmnN7CPfBPTCys+VZE9A4CENh6/RDXw=; b=F4J43E1phb4QV7tUv4MIVLYqosYyoioubRrNz+gD83U0sjPDVz6KwJ2mQmotFSXpFk AcvOGNoqldaATaJi4jSLEUHIRkZBXoCCyPspjqVVigl2eU4EaClVw7yV0Akw9ufkhgCJ Vk9SKnZf+P+JpW1QMsbRr7uyOBvyZ2S8mcL/9czutNbEla5yf2a8MZcunJPM1BT4vCVS FpB8fryoZ5njxClnUQ/EjT6ykqKAC1N6ZWi/MFmTCeGhpc7HayeiwHv1Oumar3r7Y/y8 Bz9wfY4SMiI4JYURFTxl7K6H2vhyVMJxer5VEFvdVmPjiPXRpJpmkPiK73y3stGZsEsb Urvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=vh3kiPY4/yv/JmnN7CPfBPTCys+VZE9A4CENh6/RDXw=; b=46MHI/d/IAoq8X0CZLsT+yyROInflTWOXVCqqurEyRqLL31Bhol8+YvsvUHjCy4faV odK6NqdnOXiYcQ6wjdIGQtncA2M8A7STFVnfS5Exq7zmHpI5H/MmVzVqBqHqdWi4zLwg FTyYu8aUR+OS+kaF0QfP3Tp4+JehebCVGWoUIumca2/K04sMGq3Jmf83C4a5ynMItEfj xsZKqqnpLFVFCWkJIoR+cDF21+v0FZSpFzQ8HpS29ow+Sy71HTE2PKPVVc2Pw3YEFhgW zZ6zBT5n4QKnZZ4PMOucGQHXfHoI7EoGrCnozIlLz0M9Vs0seBF3wsxy+Lo5JUND0rJH jhpg== X-Gm-Message-State: ACrzQf249vpinzD6mDsrB1tqZTJ7ZXHdarpmj7qpwfyWXidfHC19VZlw VhRDGKqDayNuSQnfvUZKVXpyJU9A/QMcYnJ85Y/cbQ== X-Google-Smtp-Source: AMsMyM7zHRSxn9X8AWz0CaKRP0O5s7jvDQ+A5xnVLnGoMB1cEWY9u9nEE8qsRIpLTXVgqUFfUnQ6SWmkxDd9HWsmy5s= X-Received: by 2002:a05:651c:1542:b0:26d:bf29:8cd5 with SMTP id y2-20020a05651c154200b0026dbf298cd5mr15933041ljp.304.1667776029992; Sun, 06 Nov 2022 15:07:09 -0800 (PST) MIME-Version: 1.0 References: <20221106181750.2859300-1-maskray@google.com> <5D161B01-124A-48A5-98FA-B5EEBD6BBA94@gentoo.org> In-Reply-To: <5D161B01-124A-48A5-98FA-B5EEBD6BBA94@gentoo.org> From: Fangrui Song Date: Sun, 6 Nov 2022 15:06:57 -0800 Message-ID: Subject: Re: [PATCH] Makerules: Generate shlib.lds with -fuse-ld=bfd To: Sam James Cc: libc-alpha@sourceware.org, Florian Weimer Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-18.3 required=5.0 tests=BAYES_00,DKIMWL_WL_MED,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,ENV_AND_HDR_SPF_MATCH,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,USER_IN_DEF_DKIM_WL,USER_IN_DEF_SPF_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 2022-11-06, Sam James wrote: > > >> On 6 Nov 2022, at 18:17, Fangrui Song via Libc-alpha wrote: >> >> lld does not dump a linker script with --verbose (it does not use a >> linker script driven design and lots of linker processing is not >> serializable as a linker script anyway). With the default >> --with-default-link=no build, $@T is empty and makes `test -s $@T` fail. >> >> Just dump the linker script with -fuse-ld=bfd. lld since 15 >> (https://reviews.llvm.org/D124656) supports custom RELRO sections in the >> GNU ld dumped linker script. >> --- > >What if bfd isn't installed? Then --with-default-link=yes has to be used:)