From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 87904 invoked by alias); 9 Nov 2018 17:43:24 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 87884 invoked by uid 89); 9 Nov 2018 17:43:23 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_PASS,SPF_PASS,UNPARSEABLE_RELAY autolearn=ham version=3.3.2 spammy= X-HELO: userp2120.oracle.com Received: from userp2120.oracle.com (HELO userp2120.oracle.com) (156.151.31.85) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 09 Nov 2018 17:43:22 +0000 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id wA9HdFwj113974; Fri, 9 Nov 2018 17:43:20 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=content-type : mime-version : subject : from : in-reply-to : date : cc : content-transfer-encoding : message-id : references : to; s=corp-2018-07-02; bh=u/jC8IlxlTSOh7p0Icghn4zVevXFfV7qzn8RHa6AQ48=; b=VnpbEHFtTY3jQtk6pCPbvJ9nuy9jFxBsX7l4Da2Awi6rx788T8XCfbsVenyDygtAB7gP l1RWMyT17zk6aMt9i5kM3Y0fINNkfoP7tGQNcoS3jhk9oHWUX++8rEeTWNVlbR/qyU36 KtZ/ZxN937+uhbFXepL1fHfDDqpGHwKTApg8mNOIH8aWwpEgZyx+OtriLujSvflh06fl 8Cuqk1q+yB+0YdzSQn1tYUK4GTrVguwKLgXWORNRkdFkkXebT54h6YH5um7+h2jG+2By cYrIr/oAdNDuAC8RqGpCa5n2plpboB1FiRYKqB1KliF11IukVLrMdFUVhf2uD0PhWn3o +w== Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp2120.oracle.com with ESMTP id 2nh4ar8akg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 09 Nov 2018 17:43:20 +0000 Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id wA9HhK1d029373 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 9 Nov 2018 17:43:20 GMT Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id wA9HhJWj010747; Fri, 9 Nov 2018 17:43:19 GMT Received: from dhcp-10-159-248-164.vpn.oracle.com (/10.159.248.164) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 09 Nov 2018 09:43:19 -0800 Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: [PATCH][RFC] Come up with -flive-patching master option. From: Qing Zhao In-Reply-To: Date: Fri, 09 Nov 2018 17:43:00 -0000 Cc: Martin Jambor , live-patching@vger.kernel.org, gcc Patches Content-Transfer-Encoding: quoted-printable Message-Id: References: <1a023bdc-28a6-eb41-b449-4d096f12064f@suse.cz> <048D9997-B7AF-444A-BF7E-79944DE8F174@oracle.com> <3E37D3A8-2D19-41C2-BA8A-8F0EFA1B4D5C@oracle.com> <10a54034-279b-a406-8466-55558effbf24@suse.cz> <20181003090457.GJ57692@kam.mff.cuni.cz> <54a75932-201b-671c-0a63-d1a5d8d7b562@suse.cz> <90c91045-cb9d-0bd2-fad3-d16426ceede6@suse.cz> <20181105095135.j3mnzox6rkktkoto@kam.mff.cuni.cz> <629b20d2-7b0b-9342-a64a-d12eb6e6a6b7@suse.cz> <20181108145909.5eh5ccen7a7elspe@kam.mff.cuni.cz> To: =?utf-8?Q?Martin_Li=C5=A1ka?= , Jan Hubicka X-IsSubscribed: yes X-SW-Source: 2018-11/txt/msg00754.txt.bz2 Hi, Martin, thanks a lot for the previous two new options for live-patching.=20 I have two more questions below: 1. do we still need new options to disable the following: A. unreachable code/variable removal?=20 B. Visibility changes with -flto and/or -fwhole-program? 2. for this new patch, could you please explain a little bit more on the pr= oblem? Thanks. Qing > On Nov 9, 2018, at 9:33 AM, Martin Li=C5=A1ka wrote: >=20 > Hi. >=20 > After I added 2 new options, I would like to include a new master option. > It's minimal version which only disables optimizations that we are aware = of > and can potentially cause problems for live-patching. >=20 > Martin > <0001-Come-up-with-fvectorized-functions.patch>