From: Masahiro Yamada <yamada.m@jp.panasonic.com>
To: Sam Ravnborg <sam@ravnborg.org>
Cc: Michal Marek <mmarek@suse.cz>,
linux-kbuild <linux-kbuild@vger.kernel.org>,
lkml <linux-kernel@vger.kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
Stephen Rothwell <sfr@canb.auug.org.au>,
David Herrmann <dh.herrmann@googlemail.com>,
Jiri Kosina <jkosina@suse.cz>
Subject: Re: [PATCH 3/6] samples: use uapiprogs support for seccomp
Date: Thu, 17 Jul 2014 12:40:46 +0900 [thread overview]
Message-ID: <20140717124046.0EC9.AA925319@jp.panasonic.com> (raw)
In-Reply-To: <20140716103120.GA4710@ravnborg.org>
On Wed, 16 Jul 2014 12:31:21 +0200
Sam Ravnborg <sam@ravnborg.org> wrote:
> > How can I build hostprogs for the same host as the kernel?
> > (I mean, how can I override $(HOSTCC) for cross-compiling ?)
>
> One way to do this:
>
> make ARCH=sparc CROSS_COMPILE=sparc-leon-linux-gnu- HOSTCC=sparc-leon-linux-gnu-gcc
>
> Notice that I override HOSTCC as part of the make comand line.
> This allows me to override the "=" assignment in the top-level Makefile.
>
> But then my build breaks as fixdep do not run on my host.
>
> If you in general want to build a binary for the target then uapiprogs come in handy.
> Only caveat here is that you will be using the exported kernel headers.
>
Thanks for explaining this. It is clearer to me now.
At first I thought this patch was a clean-up,
but it is indeed a big improvement.
Thanks!
Best Regards
Masahiro Yamada
next prev parent reply other threads:[~2014-07-17 3:41 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-13 18:36 [PATCH v2 0/6] kbuild: use target compiler for user binaries in samples/ Sam Ravnborg
2014-07-13 18:42 ` [PATCH 1/6] kbuild: add support for building userspace api programs Sam Ravnborg
2014-07-13 18:42 ` [PATCH 2/6] samples: refactor Makefile Sam Ravnborg
2014-07-13 19:25 ` Randy Dunlap
2014-07-13 19:52 ` Sam Ravnborg
2014-07-13 20:13 ` Randy Dunlap
2014-07-14 0:26 ` Stephen Rothwell
2014-07-13 18:42 ` [PATCH 3/6] samples: use uapiprogs support for seccomp Sam Ravnborg
2014-07-16 9:43 ` Masahiro Yamada
2014-07-16 10:31 ` Sam Ravnborg
2014-07-17 3:40 ` Masahiro Yamada [this message]
2014-07-13 18:42 ` [PATCH 4/6] samples: use uapiprogs support for hidraw Sam Ravnborg
2014-07-13 18:42 ` [PATCH 5/6] samples: fix warnings in uhid-example Sam Ravnborg
2014-07-13 18:42 ` [PATCH 6/6] samples: use uapiprogs support for uhid Sam Ravnborg
2014-07-13 19:23 ` [PATCH 1/6] kbuild: add support for building userspace api programs Randy Dunlap
2014-07-13 19:53 ` Sam Ravnborg
2014-07-14 0:29 ` [PATCH v2 0/6] kbuild: use target compiler for user binaries in samples/ Stephen Rothwell
2014-07-14 0:33 ` Stephen Rothwell
2014-07-17 15:22 ` Michal Marek
2014-08-21 13:46 ` Michal Marek
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