linux-kernel - Re: [RFC/PATCHSET 00/30] perf tools: New build framework

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Date:	Sun, 4 Jan 2015 16:49:43 +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>,
	Jean Pihet <jean.pihet@...aro.org>,
	Mark Salter <msalter@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Sam Ravnborg <sam@...nborg.org>,
	Stephane Eranian <eranian@...gle.com>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Will Deacon <will.deacon@....com>
Subject: Re: [RFC/PATCHSET 00/30] perf tools: New build framework

On Fri, Jan 02, 2015 at 06:36:12PM +0100, Ingo Molnar wrote:
> 
> * Jiri Olsa <jolsa@...nel.org> wrote:
> 
> > [...] The basic idea is the same as in kbuild system, with some 
> > minor changes to allow for multiple binaries build definitions.
> 
> >  tools/perf/Build                                |  48 ++
> >  tools/perf/Build.include                        |  75 ++++
> >  tools/perf/Documentation/Build                  | 123 +++++
> >  tools/perf/Makefile.build                       | 122 +++++
> >  tools/perf/Makefile.perf                        | 566 +++---------------------
> 
> >  47 files changed, 827 insertions(+), 541 deletions(-)
> 
> Even the diffstat looks pretty good: only a modest line count 
> increase.
> 
> It would be useful to put this (and other build features - such 
> as features/parallelisation support) into tools/kbuild/ though, 
> so that other tooling can make easy use of it as well. For 
> example tools/kvm/ (an external project) started off with an 
> earlier version of the perf build system.

right, I'll put it in tools/build.. looks like the tools/lib/*
could use it, probably others as well

thanks,
jirka

> 
> Sharing that would make quite a bit of sense, as tooling (and 
> most user-space project) build systems are usually have pretty 
> poor quality.
> 
> Thanks,
> 
> 	Ingo
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