linux-kernel - Re: Removing architectures without upstream gcc support

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Date:   Thu, 22 Feb 2018 17:34:02 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     James Hogan <jhogan@...nel.org>
Cc:     linux-arch <linux-arch@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Richard Kuo <rkuo@...eaurora.org>,
        linux-hexagon@...r.kernel.org, Chen Liqin <liqin.linux@...il.com>,
        Lennox Wu <lennox.wu@...il.com>,
        Guan Xuetao <gxt@...c.pku.edu.cn>,
        Guenter Roeck <linux@...ck-us.net>,
        Al Viro <viro@...iv.linux.org.uk>, linux-metag@...r.kernel.org,
        Jonas Bonn <jonas@...thpole.se>,
        Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>,
        Stafford Horne <shorne@...il.com>,
        openrisc@...ts.librecores.org, David Howells <dhowells@...hat.com>
Subject: Re: Removing architectures without upstream gcc support

On Thu, Feb 22, 2018 at 5:28 PM, James Hogan <jhogan@...nel.org> wrote:
> Hi Arnd,
>
> On Thu, Feb 22, 2018 at 04:45:06PM +0100, Arnd Bergmann wrote:
>> * Meta was ImgTec's own architecture and they upstreamed the kernel
>>   port just before they acquired MIPS. Apparently Meta was abandoned
>>   shortly afterwards and disappeared from imgtec's website in 2014.
>>   The maintainer is still fixing bugs in the port, but I could not find
>>   any toolchain more recent than
>>   https://github.com/img-meta/metag-buildroot/tree/metag-core/toolchain/gcc/4.2.4
>>   Not sure about this one, I'd be interested in more background
>>   from James Hogan, who probably has an opinion and might have
>>   newer toolchain sources.
>
> Interesting timing! Have you seen this (which I'll send for 4.17, and
> leave 4.16 broken)?
>
> https://marc.info/?l=linux-kernel&m=151925667323732&w=2

No, I missed that. Could have saved me some of the research I did
when coming up with the list ;-)

> The Meta port is essentially unused and for a while I have only looked
> at it when something went wrong. PURE's Linux based digital radios I
> believe were never updated to 3.10. The fact that the GCC port wasn't
> upstreamed before the MIPS acquisition meant it was always a ticking
> time bomb (though binutils was upstreamed).
>
> Sad really, given that at least 9 years of effort went into the port
> before permission was finally given to upstream it, and within a week or
> so of the first patchset the intention to acquire MIPS was announced.

Indeed.

      Arnd