From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 369F0CA90AF for ; Wed, 13 May 2020 09:02:03 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 06B64206CC for ; Wed, 13 May 2020 09:02:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 06B64206CC Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jYnGS-0006tM-AI; Wed, 13 May 2020 09:01:20 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jYnGR-0006tH-9z for xen-devel@lists.xenproject.org; Wed, 13 May 2020 09:01:19 +0000 X-Inumbo-ID: 4ed43e0c-94f8-11ea-ae69-bc764e2007e4 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 4ed43e0c-94f8-11ea-ae69-bc764e2007e4; Wed, 13 May 2020 09:01:18 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 3FC4AAC5F; Wed, 13 May 2020 09:01:20 +0000 (UTC) Subject: Re: [PATCH 0/2] Fixups for fcf-protection To: Stefan Bader References: <20200512033948.3507-1-jandryuk@gmail.com> <3542ecb3-6f4e-2408-ea9f-9b03ac23688e@canonical.com> <2fbc4be8-c992-1703-168c-a4124a0fd02e@citrix.com> <27da328a-189a-607c-0f97-705405380c1b@canonical.com> From: Jan Beulich Message-ID: <89ad0ca5-c575-80da-bde3-e87d2df1c4ba@suse.com> Date: Wed, 13 May 2020 11:01:15 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <27da328a-189a-607c-0f97-705405380c1b@canonical.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Andrew Cooper , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , xen-devel@lists.xenproject.org, Wei Liu , Jason Andryuk Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" On 13.05.2020 07:41, Stefan Bader wrote: > On 12.05.20 20:47, Andrew Cooper wrote: >> On 12/05/2020 08:17, Stefan Bader wrote: >>> Not sure it was already hit but that additional .note section breaks the build >>> of the emulator as generated headers become gigantic: >>> >>> https://git.launchpad.net/ubuntu/+source/xen/tree/debian/patches/1001-strip-note-gnu-property.patch?h=ubuntu/focal >> >> 4.6G of notes?!?  That is surely a toolchain bug. > > No, sorry if that was unclear. The .notes themselves are just about some Kb or > so per object file. Problem is that each object file gets converted into a hex > array header file. And this does multiply the resulting header file sizes. > So the .h files generated are 4.6G in size. And there were a couple of those, > all included into one .c file. Which ended in the compiler running out of memory > on a 32GB system. But as per the link above it's still 3Mb notes per object, which still seems insane. Jan