From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 59073 invoked by alias); 14 Oct 2018 09:59:21 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 59049 invoked by uid 89); 14 Oct 2018 09:59:20 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-1.7 required=5.0 tests=AWL,BAYES_00,SPF_PASS autolearn=ham version=3.3.2 spammy=H*F:D*cz, nopie, no-pie, H*r:user X-HELO: relay.fit.cvut.cz Received: from relay.fit.cvut.cz (HELO relay.fit.cvut.cz) (147.32.232.237) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Sun, 14 Oct 2018 09:59:18 +0000 Received: from imap.fit.cvut.cz (imap.fit.cvut.cz [147.32.232.238]) by relay.fit.cvut.cz (8.15.2/8.15.2) with ESMTPS id w9E9x5Nb092439 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 14 Oct 2018 11:59:06 +0200 (CEST) (envelope-from jan.vrany@fit.cvut.cz) Received: from sao (ip-62-24-85-77.net.upcbroadband.cz [62.24.85.77]) (authenticated bits=0 as user vranyj1) by imap.fit.cvut.cz (8.15.2/8.15.2) with ESMTPSA id w9E9x27K073912 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Sun, 14 Oct 2018 11:59:03 +0200 (CEST) (envelope-from jan.vrany@fit.cvut.cz) Message-ID: <9dbaccd25aae8bdf1cd96e59ae8f7c9be9cce7db.camel@fit.cvut.cz> Subject: Re: [PATCH] Fix various tests to use -no-pie linker flag when needed From: Jan Vrany To: Simon Marchi , Tom Tromey Cc: gdb-patches@sourceware.org Date: Sun, 14 Oct 2018 09:59:00 -0000 In-Reply-To: References: <20180828193643.15530-1-jan.vrany@fit.cvut.cz> <87lg8dvy0o.fsf@tromey.com> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.30.1-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-SW-Source: 2018-10/txt/msg00315.txt.bz2 Hi, I'm sorry for a long delay, I've been very, very busy lately. Hopefully I'd have more time for GDB now... On Fri, 2018-09-07 at 23:18 +0100, Simon Marchi wrote: > On 2018-09-07 21:43, Tom Tromey wrote: > > > > > > > "Jan" == Jan Vrany writes: > > > > Jan> Various test use test code written in i385 / x86_64 assembly that > > cannot > > Jan> be used to create PIE executables. Therefore compilation of test > > programs > > Jan> failed on systems where the compiler default is to create PIE > > executable. > > > > Jan> To fix this, force -no-pie linker flag. > > > > I guess you're on an OS that enables PIE by default? > > I know recent-ish Ubuntus do that, I don't know if it's a patch specific > to that distro or if it's the default value in gcc that changed. Neither I know. I'm using Debian Buster which seems to have -no-pie by default too. > > > These tests don't seem to be linux- or gcc-specific. > > Do you know how universal -no-pie is? My worry is that this would fix > > the test for some people but break it for others. > > No, I don't know how universal -no-pie is. From what I have understood from Simon (https://sourceware.org/ml/gdb-patches/2018-08/msg00662.html), out of the options available -no-pie is still the best bet. > > Tom > > If needed, we could add a new option understood by gdb_compile that adds > the right flag to achieve the result of -no-pie. Indeed we can. Tom, would that be OK with you? Best Jan