linux-kernel - Re: s390 cross-compiling code coverage

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Date:	Mon, 11 Jan 2016 12:41:12 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Peter Hurley <peter@...leysoftware.com>
Cc:	Heiko Carstens <heiko.carstens@...ibm.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	linux-s390@...r.kernel.org,
	Linux kernel <linux-kernel@...r.kernel.org>
Subject: Re: s390 cross-compiling code coverage

On Mon, Jan 11, 2016 at 11:38:35AM -0800, Peter Hurley wrote:
> Occasionally, it's necessary to touch s390 code because of changes
> within a subsystem, such as tty/serial.
> 
> Since changing the configs to the zEC12 march, the gcc 4.6.3 s390
> cross-compiler hosted at kernel.org/pub/tools/crosstool no longer
> builds any of the configs.
> 
> Would someone please add a config expected to build with that
> cross-compiler? And/or point to a more recent cross-compiler?
> And either confirm that one of these configs is suitable for
> build coverage?
> 
Hi Peter,

Seems to still work for me (up to and including linux-next), at least
for building defconfig, allmodconfig, and allnoconfig. Also, the defconfig
kernel boots for me with qemu after replacing CONFIG_MARCH_Z196 with
CONFIG_MARCH_Z900.

Have you tried gcc 4.9.0 from
www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.9.0/ ?

Guenter