From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail1.windriver.com (mail1.windriver.com [147.11.146.13]) by mail.openembedded.org (Postfix) with ESMTP id 91F2D76E70 for ; Thu, 5 Nov 2015 13:43:36 +0000 (UTC) Received: from ALA-HCA.corp.ad.wrs.com (ala-hca.corp.ad.wrs.com [147.11.189.40]) by mail1.windriver.com (8.15.2/8.15.1) with ESMTPS id tA5DhYob021061 (version=TLSv1 cipher=AES128-SHA bits=128 verify=FAIL); Thu, 5 Nov 2015 05:43:36 -0800 (PST) Received: from Marks-MacBook-Pro.local (172.25.36.227) by ALA-HCA.corp.ad.wrs.com (147.11.189.50) with Microsoft SMTP Server id 14.3.248.2; Thu, 5 Nov 2015 05:43:34 -0800 To: Robert Yang , References: <88477fa50093b85e65b17c746a637c7259b87018.1446711613.git.liezhi.yang@windriver.com> From: Mark Hatle Organization: Wind River Systems Message-ID: <563B5D05.9060609@windriver.com> Date: Thu, 5 Nov 2015 07:43:33 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <88477fa50093b85e65b17c746a637c7259b87018.1446711613.git.liezhi.yang@windriver.com> Cc: Richard Purdie Subject: Re: [PATCH 1/1] gcc-multilib-config: make aarch64 support multilib 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: Thu, 05 Nov 2015 13:43:40 -0000 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit On 11/5/15 2:20 AM, Robert Yang wrote: > Fixed: > MACHINE = qemuarm64 > require conf/multilib.conf > MULTILIBS = "multilib:lib32" > DEFAULTTUNE_virtclass-multilib-lib32 = "armv7at-neon" > > $ bitbake core-image-minimal -cpopulate_sdk > > WARNING: gcc multilib setup is not supported for TARGET_ARCH=aarch64 > WARNING: gcc multilib setup is not supported for TARGET_ARCH=aarch64 > > [YOCTO #8638] > > Signed-off-by: Robert Yang > --- > meta/recipes-devtools/gcc/gcc-multilib-config.inc | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/meta/recipes-devtools/gcc/gcc-multilib-config.inc b/meta/recipes-devtools/gcc/gcc-multilib-config.inc > index 1c0a45a..a0a2ac0 100644 > --- a/meta/recipes-devtools/gcc/gcc-multilib-config.inc > +++ b/meta/recipes-devtools/gcc/gcc-multilib-config.inc > @@ -29,6 +29,9 @@ python gcc_multilib_setup() { > bb.utils.remove(build_conf_dir, True) > ml_globs = ('%s/*/t-linux64' % src_conf_dir, > '%s/*/linux64.h' % src_conf_dir, > + '%s/aarch64/t-aarch64' % src_conf_dir, > + '%s/aarch64/aarch64.h' % src_conf_dir, > + '%s/aarch64/aarch64-cores.def' % src_conf_dir, > '%s/*/linux.h' % src_conf_dir, > '%s/linux.h' % src_conf_dir) > > @@ -130,6 +133,8 @@ python gcc_multilib_setup() { > 'mips64' : ['gcc/config/mips/t-linux64'], > 'powerpc' : ['gcc/config/rs6000/t-linux64'], > 'powerpc64' : ['gcc/config/rs6000/t-linux64'], > + 'aarch64' : ['gcc/config/aarch64/t-aarch64'], > + 'arm' : ['gcc/config/aarch64/t-aarch64'], > } > > gcc_header_config_files = { > @@ -140,6 +145,8 @@ python gcc_multilib_setup() { > 'mips64' : ['gcc/config/mips/linux.h', 'gcc/config/mips/linux64.h'], > 'powerpc' : ['gcc/config/rs6000/linux64.h'], > 'powerpc64' : ['gcc/config/rs6000/linux64.h'], > + 'aarch64' : ['gcc/config/aarch64/aarch64.h'], > + 'arm' : ['gcc/config/aarch64/aarch64.h'], > } I'm not sure the above is correct in this case. As I believe GCC treats aarch64 and arm as different architectures unlike MIPS, Power and IA32. In this case, I would expect two specific cross compilers to be generated, one for armv7 and one for aarch64, instead of a combination single compiler that understand both. So in this case, it might be better to have an exception to the warning message... (unless I'm wrong, in which case this IS likely a correct fix....) Hopefully Khem and/or Richard will be able to comment as they are more familiar with this code path. > > libdir32 = 'SYSTEMLIBS_DIR' >