linux-kernel - Re: [PATCH v3 1/3] tracing,x86: add a TSC trace

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Message-ID: <1349138589.22822.138.camel@gandalf.local.home>
Date:	Mon, 01 Oct 2012 20:43:09 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	David Sharp <dhsharp@...gle.com>
Cc:	linux-kernel@...r.kernel.org,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...ux.intel.com>
Subject: Re: [PATCH v3 1/3] tracing,x86: add a TSC trace_clock

On Mon, 2012-10-01 at 17:33 -0700, David Sharp wrote:

> > Unfortunately this isn't enough. You need to add a stub in all
> > arch/*/include/asm/ directories. That has:
> 
> Oh really? Okay. Sorry, I really don't know the mechanics of the arch
> trees. I'll work on that now, and then send you a new series since I
> forgot to send out my last update.

It's a good idea to cross compile archs, especially if you make any
change that affects archs (like this one did).

Just use ktest.pl. You can download the cross tools at:

  http://kernel.org/pub/tools/crosstool/files/bin/x86_64/

And you can use the example config file in:

  tools/testing/ktest/examples/crosstests.conf

That's basically the test I use to test cross compiling of other archs.

-- Steve


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