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From: Ingo Molnar <mingo@elte.hu>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Heiko Carstens <heiko.carstens@de.ibm.com>
Subject: Re: [PATCH][RFC] x86: add non x86 build configuration
Date: Thu, 30 Oct 2008 20:51:07 +0100	[thread overview]
Message-ID: <20081030195107.GK27407@elte.hu> (raw)
In-Reply-To: <alpine.DEB.1.10.0810292139170.6145@gandalf.stny.rr.com>


* Steven Rostedt <rostedt@goodmis.org> wrote:

> A lot of developers develop on x86 architectures, and do things that 
> sometimes breaks non x86 archs. This patch adds a debug option to 
> turn off all the CONFIG_HAVE_ options that x86 sets. This allows 
> developers to easily test their code to make sure that it compiles 
> without a lot of the assumptions that x86 makes.
> 
> Note: Recently the ftrace code had an issue where a depend was set
>   by the wrong select, but that select was not set by all archs.
>   This patch catches that issue when compiling on x86.

cool, very nice - thanks Steve!

testing this way scales _far_ better than maintaining a farm of 
cross-compilers.

One important detail: could you please flip around the modality of the 
option? Right now it's CONFIG_SIMULATE_NON_X86_CONFIGURATION, and that 
will be set by allyesconfig. But it has the exact opposite effect of 
an "all yes" config.

So please name it something like CONFIG_STANDARD_X86_FEATURES, and 
also make it depend on CONFIG_EMBEDDED (only allow it to be turned off 
when EMBEDDED is enabled).

ok?

	Ingo

  reply	other threads:[~2008-10-30 19:51 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200810281802.m9SI2fYX030138@hera.kernel.org>
2008-10-29  9:18 ` ftrace: fix depends Heiko Carstens
2008-10-29 15:15   ` [PATCH] ftrace: fix trace_nop config select Steven Rostedt
2008-10-29 16:21     ` Ingo Molnar
2008-10-30  1:43   ` [PATCH][RFC] x86: add non x86 build configuration Steven Rostedt
2008-10-30 19:51     ` Ingo Molnar [this message]
2008-10-30 20:05       ` Steven Rostedt
2008-10-30 20:57         ` Ingo Molnar
2008-10-30 21:09           ` Steven Rostedt
2008-10-30 20:20       ` Sam Ravnborg
2008-10-30 20:55         ` Ingo Molnar

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