linux-kernel - Re: [PATCH v3 0/4] tools: Add a toplevel Makefile

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Message-ID: <20120331084908.GA14149@gmail.com>
Date:	Sat, 31 Mar 2012 10:49:08 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Borislav Petkov <bp@...64.org>
Cc:	Sam Ravnborg <sam@...nborg.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Michal Marek <mmarek@...e.cz>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/4] tools: Add a toplevel Makefile


* Borislav Petkov <bp@...64.org> wrote:

> On Fri, Mar 30, 2012 at 07:26:05AM +0200, Sam Ravnborg wrote:
> > > $ make tools/<toolname> tinstall
> > But this makes no sense.
> > 
> > It would be better to be consistent - so the user does not need to remember
> > when to add a space and when not.
> > 
> > make tools/<command> where <command> is one of help, install, clean, "nothing"
> > make tools/<toolname>
> > make tools/<toolname>_<comand> where command is the same set of commands
> > 
> > 
> > then a user could do:
> > 
> >     make tools/clean
> >     make tools/perf
> >     make tools/perf_install
> > 
> > or
> > 
> >     make tools/clean
> >     make tools/
> >     make tools/install
> 
> This one I had hard time imagining: who would install all 
> tools but I guess it could have it's use...

regression testing?

> > The install target could implicitly include the build 
> > target.
> > 
> > With this scheme the user is up to less suprises.
> > 
> > All the above are only minor adjustments compared to what 
> > you already did. bt the consistency here is a gain (IMO).
> 
> ... but yeah, those make sense to me too, let's see what the 
> others think, Arnaldo, Ingo?

Well, if Sam and Michal are fine with it I'm a happy camper.

One question. Instead of:

  make tools/perf_install

Couldnt we beat kbuild into submission to allow the much more 
obvious:

  make tools/perf install

?

I don't think anyone would expect the *kernel* to be installed 
in such a circumstance - so it's only a question of making the 
Makefile understand it, right?

Thanks,

	Ingo
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