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Date:   Sun, 19 Feb 2017 07:55:05 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Fengguang Wu <fengguang.wu@...el.com>,
        Stafford Horne <shorne@...il.com>
Cc:     Openrisc <openrisc@...ts.librecores.org>,
        linux-kernel@...r.kernel.org,
        Tony Breeds <tony@...eyournoodle.com>,
        Segher Boessenkool <segher@...nel.crashing.org>
Subject: Re: Crosstool/kbuild-all toolchain updates

On 02/19/2017 05:26 AM, Fengguang Wu wrote:
> Hi Stafford,
>
> On Wed, Feb 01, 2017 at 07:44:38AM +0900, Stafford Horne wrote:
>> Hi Fengguang/All,
>>
>> I am working as the OpenRISC linux kernel maintainer.  Currently in
>> linux-next our patches are causing kbuild test robot to fail.
>>
>> This is because the patches are taking advantage of 2 'new' (2 year old)
>> instrucions (l.swa/l.lwa) and the build robots, as far as I can tell,
>> use the 'make.cross' [0] build script from lkp-tests.git.  These point
>> to the crosstools [1] toolchains maintained by Tony.
>>
>> I sent a mail to Tony who maintains the crosstools but I didn't get a
>> reply and it seems he is not longer working on them [1].
>>
>> I think our options are:
>>
>>  1. Update 'make.cross' to point somewhere else for openrisc
>>  2. Update and maintain crosstools
>>
>> For 1. its trvial but, maybe not the best solution.
>
> It's a valuable patch, thank you!
>
>> For 2. I created new crosstool builds for openrisc [3]. The way the
>> crosstools are maintained is via a patches.tar file and it seem a custom
>> buildall script.  I dont see the source for that custom script anywhere.
>>
>> I am thinking I could help to update and 'opensource' the crosstool
>> build scripts to make it easier for everyone to update toolchains by
>> sending patches.
>>
>> But, I would need access to crosstool on kernel.org and an OK from
>> everyone.
>>
>> Any opinions? Questions?
>
> An uptodate crosstool and reasonable active maintainer would be very
> welcome. I'll sure be a heavy user. In the past year when crosstool is
> not updated to gcc-6, we've resorted to using debian packages for some
> ARCHs and building our own cross compliers for the other ARCHs. The
> latter are based on Segher's buildall tools (CCed). The private builds
> may work for us in short term, however is obvious not a satisfactory
> solution.
>

+1

Guenter

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