linux-kernel - Re: [PATCH] powerpc: Fix "attempt to move .org backwards" error (again)

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Message-ID: <1399873020.17624.79.camel@pasglop>
Date:	Mon, 12 May 2014 15:37:00 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	Paul Mackerras <paulus@...ba.org>
Subject: Re: [PATCH] powerpc: Fix "attempt to move .org backwards" error
 (again)

On Mon, 2014-05-12 at 14:12 +1000, Benjamin Herrenschmidt wrote:
> On Fri, 2014-05-09 at 17:07 -0700, Guenter Roeck wrote:
> > Commit 4e243b7 (powerpc: Fix "attempt to move .org backwards" error) fixes the
> > allyesconfig build by moving machine_check_common to a different location.
> > While this fixes most of the errors, both allmodconfig and allyesconfig still
> > fail as follows.
> > 
> > arch/powerpc/kernel/exceptions-64s.S:1315: Error: attempt to move .org backwards
> > 
> > Fix by moving machine_check_common after the offending address.
> 
> This suffers from the same problem as previous attempts, on some of my
> test configs I get:
> 
> arch/powerpc/kernel/head_64.o:(__ftr_alt_97+0xb0): relocation truncated to fit: R_PPC64_REL14 against `.text'+1c90
> make[1]: *** [vmlinux] Error 1
> make: *** [sub-make] Error 2
> 
> IE, it breaks currently working configs.
> 
> So we need to move more things around and I haven't had a chance to
> sort it out.

Ok, I think I sorted it out for now. It's a mess and likely to break
again until we do something more drastic like moving everything that's
after 0x8000 to a separate file but for now that will do. Patch on its
way, I'll also shoot it to Linus today along with a few other things.

Cheers,
Ben.


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