From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Mon, 24 Jan 2011 17:02:56 +0100 Subject: [Buildroot] uclibc config changes and cross-compiler In-Reply-To: References: Message-ID: <20110124170256.4cbf2e10@surf> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net On Fri, 21 Jan 2011 10:46:48 +0300 Sergey Naumov wrote: > Does anybody know whether changes in uclibc.conf when cross-compiler > is already built can lead to unrunnable programs? I don't think there is an uclibc.conf file, but I assume you're talking about uClibc .config file. > For example, we made a toolchain with certain uclibc features. Then we > decided to add/remove some programs from our build so we need > additional/no longer need some uclibc features. Is it safe to rebuild > only uclibc in this case, or we also have to rebuild compiler? I am not an uClibc expert, but my understanding is that uClibc does not provide ABI compatibility between versions and configurations. Therefore, you cannot assume that programs compiled against version A/configuration A of uClibc will work properly with version B/configuration B of uClibc. Regards, Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com