From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-4.0 required=3.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 5AD601F45E for ; Sun, 16 Feb 2020 16:40:33 +0000 (UTC) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:references:date:in-reply-to :message-id:mime-version:content-type:content-transfer-encoding; q=dns; s=default; b=p08NAvLivWky3VaStf/wvs1ueHRYhJWWq0FgnyKp8v3 lNEzzBTGPTqcnT/pGMW6b9KxqPKoWGuEODoMYKzQLDftmamqD+rd3dtnjdpeUFDq LZ94AS9fo/m2bTgqzmdxhPMkiKXfRSXpJAslarhO+9ag6xPcSsDWUrhHOL7/FjCE = DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:references:date:in-reply-to :message-id:mime-version:content-type:content-transfer-encoding; s=default; bh=OGmQE76Js/lePqsNqvotIAHpPs0=; b=rx3dlxBhWkg8AiYGL qps4fDQqAdZXUSwXlKViButgAOFzQEyS2yf+beOLfFX/LmdfiOyhcyAEm1r8gtNw ZYU9cRtrQ8/JZQhe1RL4boI/wz2FyfS33ZhnVYoVvhIYahJts2zbD3ZC2pNec0UR 79H5T3aTXyfP56bFAsGAtmFnpY= Received: (qmail 21493 invoked by alias); 16 Feb 2020 16:40:30 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 21479 invoked by uid 89); 16 Feb 2020 16:40:30 -0000 Authentication-Results: sourceware.org; auth=none X-HELO: us-smtp-1.mimecast.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1581871227; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=m0dQxlLSTOF1KhtjuvTmRyRFEGCDjlsRgG+oexbyz0E=; b=IQ3b4v712SHE1mPGjiZMhb5o1T4As25XeLInaX8BXPPA5alMDAQG960rdfRCNsJzzKBy/w als3N+bqCjAu0Y0XqicGYcgJbuTmTKtBSJZo9KJPcQCJe2vcWvcBvUnZUedxqCfJeF1Pyp UGz5wWYqgpB5s91MMTwS/QRtpQLk8J8= From: Florian Weimer To: libc-alpha@sourceware.org Subject: Re: [PATCH 0/3] Full removal of libc.so/ld.so interposition (bug 25486) References: Date: Sun, 16 Feb 2020 17:40:17 +0100 In-Reply-To: (Florian Weimer's message of "Sat, 15 Feb 2020 21:17:51 +0100") Message-ID: <87wo8mwkni.fsf@oldenburg2.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain Content-Transfer-Encoding: quoted-printable * Florian Weimer: > Apart from malloc, the other use of symbol interposition is the ld.so > exception handling mechanism. > > We can (carefully) use some form of thread-local storage in the loader > now that Hurd has THREAD_GETMEM/THREAD_SETMEM. This leads to a nice > simplification of this code. > > Tested on x86_64-linux-gnu and i686-linux-gnu. Full > build-many-glibcs.py with the scripts/localplt.awk change is still > running. A previous build was fine except on C-SKY, hence the second > commit in this series. Building the entire series with did not show any issues. Thanks, Florian