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

From: Hans-Peter Nilsson
Date: Mon Sep 15 2014 - 11:57:45 EST


Following up on Jesper's reply...

> From: Jesper Nilsson <jespern@xxxxxxxx>
> 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.

> I'm using gcc 4.7.2, but of course, that is a locally built
> version that might have patches not upstream
> (although I doubt it knowing the gcc CRIS maintainer :-)

(oops. *blush*) The TLS stuff is unfortunately not upstreamed
at this time. Unimportant when building the kernel, but
mentioned for completeness. (The bad excuse is that I
originally awaited pre-v32 kernels to get the corresponding TLS
support so I wouldn't have to do ugly pre-vs.-v32 conditionals,
then the whole thing lost priority, and now I avoid adding code
I can't/won't test - the glibc end isn't upstreamed either.
Sorry.)

brgds, H-P
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