From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga01.intel.com ([192.55.52.88]) by linuxtogo.org with esmtp (Exim 4.72) (envelope-from ) id 1T7UK4-00053K-BA for openembedded-core@lists.openembedded.org; Fri, 31 Aug 2012 18:43:56 +0200 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 31 Aug 2012 09:31:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,348,1344236400"; d="scan'208";a="216786035" Received: from unknown (HELO [10.255.12.251]) ([10.255.12.251]) by fmsmga001.fm.intel.com with ESMTP; 31 Aug 2012 09:31:38 -0700 Message-ID: <5040E6EA.4010806@linux.intel.com> Date: Fri, 31 Aug 2012 09:31:38 -0700 From: Saul Wold User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120717 Thunderbird/14.0 MIME-Version: 1.0 To: Khem Raj References: <1346356090-13811-1-git-send-email-sgw@linux.intel.com> In-Reply-To: Cc: openembedded-core@lists.openembedded.org Subject: Re: [PATCH] poky-tiny: Enable x86-64 to build eglibc correctly X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.11 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: Fri, 31 Aug 2012 16:43:56 -0000 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 08/30/2012 02:49 PM, Khem Raj wrote: > On Thu, Aug 30, 2012 at 12:48 PM, Saul Wold wrote: >> The libc-libm-big option allows eglibc to correctly configure >> itself to include the correct math functions for 64bit operations >> >> [YOCTO #2943] >> >> Signed-off-by: Saul Wold >> --- >> meta-yocto/conf/distro/poky-tiny.conf | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/meta-yocto/conf/distro/poky-tiny.conf b/meta-yocto/conf/distro/poky-tiny.conf >> index 8ae1d85..bfb4432 100644 >> --- a/meta-yocto/conf/distro/poky-tiny.conf >> +++ b/meta-yocto/conf/distro/poky-tiny.conf >> @@ -63,6 +63,7 @@ ASSUME_PROVIDED += "pkgconfig$" >> # Reconfigure eglibc for a smaller installation >> # Comment out any of the lines below to disable them in the build >> DISTRO_FEATURES_LIBC_TINY = "libc-libm libc-crypt" >> +DISTRO_FEATURES_LIBC_TINY_append_x86-64 = " libc-libm-big" >> >> # Required for "who" >> DISTRO_FEATURES_LIBC_MINIMAL = "libc-utmp libc-getlogin" > > > there is a bug in eglibc if it cant build without libc-libm-big > it should have not caused any undefined symbol failures because > all it should have done is not use double precision so your computations > will be less accurate. > Khem, You are correct the problem is that if the libm-big option is not specificed it grabs the dbl-wrap files for some sysdep function, but still uses the dbl-64 functions for others. Should I file an eglibc bug? Sau! >> -- >> 1.7.9.5 >> >> >> _______________________________________________ >> Openembedded-core mailing list >> Openembedded-core@lists.openembedded.org >> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core > >