linux-kernel - Re: Status of 'cris' architecture support in Linux kernel

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Message-ID: <20140916032212.GA7759@roeck-us.net>
Date:	Mon, 15 Sep 2014 20:22:12 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Hans-Peter Nilsson <hans-peter.nilsson@...s.com>
Cc:	jespern@...s.com, linux-cris-kernel@...s.com,
	linux-kernel@...r.kernel.org, grant.likely@...aro.org,
	edgar.iglesias@...il.com
Subject: Re: Status of 'cris' architecture support in Linux kernel

On Mon, Sep 15, 2014 at 11:30:07AM -0700, Guenter Roeck wrote:
> On Mon, Sep 15, 2014 at 05:49:49PM +0200, Hans-Peter Nilsson wrote:
> > Following up on Jesper's reply...
> > 
> > > From: Jesper Nilsson <jespern@...s.com>
> > > Date: Mon, 15 Sep 2014 16:52:03 +0200
> > 
> > > > Toolchain
> > > > 
> > > > Creating a toolchain from upstream sources required a number of patches.
> > 
> > > > - gcc 4.7.4
> > > >   Requires a backport from upstream gcc to compile.
> > > >   Later versions of gcc (4.8.3, 4.9.1) fail with internal compiler errors
> > > >   even after patching.
> > 
> > This sounds like PR61737 (fixed; use 4.9.2 not released yet),
> > but of course with the above sentence serving as your complete
> > bug-report (or did I miss one?) that will only be a guess.
> > 
> Confirmed; gcc 4.9.1 for crisv32 builds after applying the patch fixing
> PR61737 (and the patch to fic config.gcc) on top of gcc 4.9.1.
> 
Not-so-good update: I got the toolchain with gcc 4.9.1 to build,
but the resulting image hangs early during boot. This does not happen
if I use the toolchain with gcc 4.7.4. Guess I'll stick with that.

Guenter
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