From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Williams Subject: Re: microblaze syscall list Date: Fri, 02 May 2008 15:38:20 +1000 Message-ID: <481AA8CC.10405@petalogix.com> References: <87a5b0800804220513t75690ceao938a288596b5ad0c@mail.gmail.com> <48151726.9000204@itee.uq.edu.au> <200804281431.26570.arnd@arndb.de> <200805012117.12991.arnd@arndb.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from gum.itee.uq.edu.au ([130.102.66.1]:60982 "EHLO gum.itee.uq.edu.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758528AbYEBHIc (ORCPT ); Fri, 2 May 2008 03:08:32 -0400 In-Reply-To: <200805012117.12991.arnd@arndb.de> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Arnd Bergmann Cc: John Williams , monstr@seznam.cz, Matthew Wilcox , Will Newton , Linux Kernel list , linux-arch@vger.kernel.org, git@xilinx.com, Stephen Neuendorffer , John Linn Arnd Bergmann wrote: > On Monday 28 April 2008, Arnd Bergmann wrote: > >>How about this strategy then: >>* Change all the data types and syscall numbers in the -for-2.6.27 >>branch to only include the minimal set, and a modern ABI >>* Add the old interfaces as an out-of-tree patch that adds source >>level compatibility with the old libc, but does not modify any >>of the new interfaces, so that a patched kernel can run all binaries >>built for the upstream version. >>* phase out the old source interface gradually, as all users update >>their libc source code. > > > Any news on this from the microblaze people? Have you made up your mind > on what route you want to go? I think we're still digesting it. I need to sync up with Michal and the Xilinx people. The libc and kernel API changes have to happen in tandem, otherwise Michal can't properly test the kernel he's pushing. I am the defacto MicroBlaze uClibc and toolchain "builder" but somewhat reluctantly - am trying to convince Xilnx to hand that over to someone who is expert at it. Michal, John L, any thoughts? John