linux-kernel - Re: [PATCHv3 00/36] perf tools: New build framework

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Date:	Wed, 21 Jan 2015 13:01:54 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Jiri Olsa <jolsa@...nel.org>, linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Alexis Berlemont <alexis.berlemont@...il.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Anton Blanchard <anton@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Borislav Petkov <bp@...en8.de>, Borislav Petkov <bp@...e.de>,
	Cody P Schafer <cody@...ux.vnet.ibm.com>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	David Ahern <dsahern@...il.com>,
	Florian Fainelli <florian@...nwrt.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jan Heylen <heyleke@...il.com>,
	Mark Salter <msalter@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"S. Lockwood-Childs" <sjl@...labs.com>,
	Sam Ravnborg <sam@...nborg.org>,
	Sasha Levin <sasha.levin@...cle.com>,
	Stephane Eranian <eranian@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Will Deacon <will.deacon@....com>
Subject: Re: [PATCHv3 00/36] perf tools: New build framework

On Wed, Jan 21, 2015 at 07:13:04AM +0100, Ingo Molnar wrote:
> 
> * Jiri Olsa <jolsa@...nel.org> wrote:
> 
> > hi,
> > I'm following up on latest post from Alexis:
> >   http://marc.info/?l=linux-kernel&m=141427580405357&w=2
> > 
> > v3 changes:
> >   - disabling only builtin rules, keeping builtin variables in place
> >     because some projects we depends on using them (traceevent) [David]
> >   - fixed empy source list issue that happened on arm [Will, Mark]
> >   - updated to the current Arnaldo's perf/core branch
> >   - added automated tests into: tools/build/tests/
> >   - tested on arm64,ppc64,s390,x86_64,i386
> > 
> > v2 changes:
> >   - build Makefiles librarized and moved to 'tools/build' [Ingo]
> >   - several minor fixies [Namhyung]
> >   - tested on other archs now - x86_64, i386, powerpc
> >   - moved tools/lib/* under new build framework to show
> >     that it's possible ;-)
> >     included traceevent/lockdep maintainers to get the feedback
> >   - omitted last 2 patches
> > 
> > The patchset is also available in:
> >   git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
> >   perf/build
> > 
> > All tests/make tests passed.
> 
> Very nice! I gave it a quick test and saw no problems, behavior, 
> speed and functionality of the build appears to be identical to 
> the old system.
> 
> > Also now we have the full dependency check ((gcc -Wp,-MD,... 
> > stuff) and build command line is stored/checked automatically 
> > by the build system.
> 
> Btw., another thing that might be nice to extract into 
> tools/build/ [or tools/config/] is the build/OS features 
> detection framework - it goes hand in hand with the build
> system.

right, it's on my TODO list ;-)

jirka
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