From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mailout4.zoneedit.com (mailout4.zoneedit.com [64.68.198.17]) by mail.openembedded.org (Postfix) with ESMTP id 419097478E for ; Sat, 19 May 2018 19:33:42 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mailout4.zoneedit.com (Postfix) with ESMTP id 97BE120BD7; Sat, 19 May 2018 19:33:43 +0000 (UTC) Received: from mailout4.zoneedit.com ([127.0.0.1]) by localhost (zmo03-pco.easydns.vpn [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nvoS2xvtxpK3; Sat, 19 May 2018 19:33:43 +0000 (UTC) Received: from mail.denix.org (pool-100-15-85-143.washdc.fios.verizon.net [100.15.85.143]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mailout4.zoneedit.com (Postfix) with ESMTPSA id 463CB20908; Sat, 19 May 2018 19:33:41 +0000 (UTC) Received: by mail.denix.org (Postfix, from userid 1000) id 392CE16347F; Sat, 19 May 2018 15:33:41 -0400 (EDT) Date: Sat, 19 May 2018 15:33:41 -0400 From: Denys Dmytriyenko To: Khem Raj Message-ID: <20180519193341.GM19965@denix.org> References: <20180519162102.GL19965@denix.org> MIME-Version: 1.0 In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Cc: Patches and discussions about the oe-core layer Subject: Re: GCC 9 Drops Support For Older ARM Microarchitecture Versions X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 19 May 2018 19:33:43 -0000 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sat, May 19, 2018 at 11:07:55AM -0700, Khem Raj wrote: > On Sat, May 19, 2018 at 9:21 AM, Denys Dmytriyenko wrote: > > https://www.phoronix.com/scan.php?page=news_item&px=GCC-9-Dropping-Older-ARM > > > > Particularly, ARMv5 and ARMv5E are being dropped (but T and TE variants > > remain) > > > > Are there any concerns from OE community perspective? > > From yocto project perspctive qemuarm which is emulating arm926ejs > with default tune armv5te is used. > so we are right at the trailing edge and wont be affected. However, I > know there were OE users who had > devices using other armv5 or v4 variants > > I have been suggesting to switch qemuarm to use armv7 based board > emulator for few years now. > may be this is the time to make that call for next YP release. Valid point about qemuarm, but see below. > > At least for binutils we needed this patch even for armv5te: > > http://cgit.openembedded.org/openembedded-core/tree/meta/recipes-devtools/binutils/binutils/0007-Add-the-armv5e-architecture-to-binutils.patch > > > > this patch technically required to support one of OEs available tune > values. namely armv5e, we should be able to drop it. $ grep conf/machine meta/conf/machine/qemuarm.conf require conf/machine/include/qemu.inc require conf/machine/include/tune-arm926ejs.inc #require conf/machine/include/tune-arm1136jf-s.inc $ MACHINE=qemuarm bitbake virtual/kernel -e|grep -E '^DEFAULTTUNE=|^ARMPKGSFX_THUMB=|^TUNE_PKGARCH=|^TUNE_CCARGS=' ARMPKGSFX_THUMB="" DEFAULTTUNE="armv5te" TUNE_CCARGS=" -march=armv5e -marm" TUNE_PKGARCH="armv5e" I have already tried binutils w/o that patch for arm926ejs/armv5te machine and it fails, because as you can see above, -march=armv5e is being passed... -- Denys