linux-kernel - Re: [PATCH ftrace/core v6 5/5] kselftest, ftrace: Add ftrace IPMODIFY flag test

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Date:	Mon, 24 Nov 2014 09:18:23 -0700
From:	Shuah Khan <shuahkh@....samsung.com>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Steven Rostedt <rostedt@...dmis.org>
CC:	Josh Poimboeuf <jpoimboe@...hat.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Seth Jennings <sjenning@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Petr Mladek <pmladek@...e.cz>,
	Vojtech Pavlik <vojtech@...e.cz>,
	Namhyung Kim <namhyung@...nel.org>,
	Miroslav Benes <mbenes@...e.cz>,
	Ingo Molnar <mingo@...nel.org>,
	Shuah Khan <shuahkh@....samsung.com>
Subject: Re: [PATCH ftrace/core v6 5/5] kselftest, ftrace: Add ftrace IPMODIFY
 flag test

On 11/24/2014 07:11 AM, Masami Hiramatsu wrote:
> (CC'ed Shuah, since this is related to kselftest)
> 
> 
> So, if your server directory is mounted with noexec, it's an environmental
> problem. I guess you can not build any kernel drivers on that testbox, can you?
> 
> Anyway, this gives us a good question, "should test binaries be made by
> server or client(testbox) environment?" This ipmodify driver is a binary
> and it should be built with the kernel binary (by server) I think.
> But yes, I missed the Makefile didn't allow that (this always referred
> installed running kernel builddir).
> 
> I hope to have CONFIG_KSELFTEST_BINARIES for Kconfig, or make prep_kselftest
> target to build these binaries with kernel...
> 
> Shuah, what would you think about this?

I am working on patch series to add an install target to the
main kernel makefile, so these tests can be built and installed
on a target just like we do with kernel and modules. I hope to
get this in 3.19 or definitely into 3.20

This probably will help address the problem you are seeing.
Install target is needed for qemu type environments as well.

thanks,
-- Shuah


-- 
Shuah Khan
Sr. Linux Kernel Developer
Samsung Research America (Silicon Valley)
shuahkh@....samsung.com | (970) 217-8978
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