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

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Message-ID: <20160111205727.GA10889@roeck-us.net>
Date:	Mon, 11 Jan 2016 12:57:28 -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 12:49:24PM -0800, Peter Hurley wrote:
> On 01/11/2016 12:41 PM, Guenter Roeck wrote:
> > 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/ ?
> 
> Hahaha, no. Because I never thought to look behind the html at
> 
> kernel.org/pub/tools/crosstool
> 
> which has _stale_ links to gcc 4.6.3
> 

That is just to give people like me, who happened to find it, the opportunity
to "shine" in public :-)

Cheers,
Guenter