linux-kernel - Build failure in linux mainline when building arcv2 images

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Date:	Thu, 28 Jul 2016 20:23:18 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Vineet Gupta <vgupta@...opsys.com>
Cc:	linux-snps-arc@...ts.infradead.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jeff Moyer <jmoyer@...hat.com>
Subject: Build failure in linux mainline when building arcv2 images

Hi Vineet,

Mainline fails to build arcv2 images with the following error.

{standard input}: Assembler messages:
{standard input}:19174: Error: Instruction with long immediate data in delay slot
make[2]: *** [block/cfq-iosched.o] Error 1

Bisect points to commit 9a7f38c42c2 ("cfq-iosched: Convert from jiffies to nanoseconds"),
but I don't really hold it responsible. It looks more like a compiler / binutils problem
to me.

I am using a toolchain built with buildroot (gcc 4.8.3). Is there a more recent toolchain
than the one in buildroot available, by any chance ? If yes, where do I find it ?

Thanks,
Guenter