From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from tim.rpsys.net (93-97-173-237.zone5.bethere.co.uk [93.97.173.237]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id 91543E01363 for ; Tue, 17 Apr 2012 01:09:25 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by tim.rpsys.net (8.13.6/8.13.8) with ESMTP id q3H89K9o009809; Tue, 17 Apr 2012 09:09:20 +0100 Received: from tim.rpsys.net ([127.0.0.1]) by localhost (tim.rpsys.net [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 08017-10; Tue, 17 Apr 2012 09:09:16 +0100 (BST) Received: from [192.168.3.10] ([192.168.3.10]) (authenticated bits=0) by tim.rpsys.net (8.13.6/8.13.8) with ESMTP id q3H89A4E009803 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 17 Apr 2012 09:09:11 +0100 Message-ID: <1334650153.616.29.camel@ted> From: Richard Purdie To: Darren Hart Date: Tue, 17 Apr 2012 09:09:13 +0100 In-Reply-To: References: X-Mailer: Evolution 3.2.2- Mime-Version: 1.0 X-Virus-Scanned: amavisd-new at rpsys.net Cc: Yocto Project Subject: Re: [PATCH 0/1] [1.2] poky-tiny: Separate the libc features required for meta-toolchain X-BeenThere: yocto@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Discussion of all things Yocto List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Apr 2012 08:09:26 -0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit On Mon, 2012-04-16 at 18:06 -0700, Darren Hart wrote: > This addresses [YOCTO #2295], in which the meta-toolchain target would fail for > the poky-tiny DISTRO definition due to its reduced libc feature set. This is not > an optimal solution as it significantly increases the size of the C libraries > (by 461KB). However, by making the features easily removed, those looking for > truly tiny libc configurations can easily revert to the smaller set. Out of the > box, we want poky-tiny to be able to build meta-toolchain. > > In the future, we need to address WHY meta-toolchain cannot be built without > these features and look at how to reduce the impact of meta-toolchain on the > target eglibc build. I had a thought about this: diff --git a/meta/conf/distro/include/default-distrovars.inc b/meta/conf/distro/include/default-distrovars.inc index 16b3108..f770919 100644 --- a/meta/conf/distro/include/default-distrovars.inc +++ b/meta/conf/distro/include/default-distrovars.inc @@ -10,12 +10,14 @@ LIMIT_BUILT_LOCALES ?= "POSIX en_US en_GB" ENABLE_BINARY_LOCALE_GENERATION ?= "1" LOCALE_UTF8_ONLY ?= "0" -DISTRO_FEATURES_LIBC ?= "ipv4 ipv6 libc-backtrace libc-big-macros libc-bsd libc-cxx-tests libc-catgets libc-charsets libc-crypt \ +DISTRO_FEATURES_LIBC_DEFAULT ?= "ipv4 ipv6 libc-backtrace libc-big-macros libc-bsd libc-cxx-tests libc-catgets libc-charsets libc-crypt \ libc-crypt-ufc libc-db-aliases libc-envz libc-fcvt libc-fmtmsg libc-fstab libc-ftraverse \ libc-getlogin libc-idn libc-inet-anl libc-libm libc-libm-big libc-locales libc-locale-code \ libc-memusage libc-nis libc-nsswitch libc-rcmd libc-rtld-debug libc-spawn libc-streams libc-sunrpc \ libc-utmp libc-utmpx libc-wordexp libc-posix-clang-wchar libc-posix-regexp libc-posix-regexp-glibc \ libc-posix-wchar-io" +DISTRO_FEATURES_LIBC ?= "${DISTRO_FEATURES_LIBC_DEFAULT}" +DISTRO_FEATURES_LIBC_virtclass-nativesdk = "${DISTRO_FEATURES_LIBC_DEFAULT}" DISTRO_FEATURES ?= "alsa argp bluetooth ext2 irda largefile pcmcia usbgadget usbhost wifi xattr nfs zeroconf pci 3g x11 ${DISTRO_FEATURES_LIBC}" IMAGE_FEATURES ?= "" Probably not something for release at this point but maybe after it... Cheers, Richard