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From: Borislav Petkov <bp@amd64.org>
To: Sam Ravnborg <sam@ravnborg.org>
Cc: Borislav Petkov <bp@amd64.org>,
	Arnaldo Carvalho de Melo <acme@infradead.org>,
	Ingo Molnar <mingo@kernel.org>, Michal Marek <mmarek@suse.cz>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v5 5/5] tools: Connect to the kernel build system
Date: Fri, 13 Apr 2012 12:45:58 +0200	[thread overview]
Message-ID: <20120413104558.GD27686@aftab> (raw)
In-Reply-To: <20120412155734.GA30170@merkur.ravnborg.org>

On Thu, Apr 12, 2012 at 05:57:34PM +0200, Sam Ravnborg wrote:
> >  ifeq ("$(origin W)", "command line")
> > @@ -1473,7 +1478,7 @@ tools/: FORCE
> >  	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS= -C $(src)/tools/
> >  
> >  tools/%: FORCE
> > -	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS= -C $(src)/tools/ $*
> > +	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS= O=$(O) -C $(src)/tools/ $*
> 
> I think we can do:
> > +	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS= O=$(KBUILD_OUTPUT) -C $(src)/tools/ $*
> And then avoid the hacks above.

This has the side effect of starting a sub-make in that output directory
and trying to build the kernel i.e. I'm looking at the code around
"ifneq ($(KBUILD_OUTPUT),)":

$ make O=/tmp/pbuild tools/perf
  HOSTCC  scripts/basic/fixdep
  GEN     /tmp/pbuild/Makefile
  HOSTCC  scripts/kconfig/conf.o
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
scripts/kconfig/conf --silentoldconfig Kconfig
***
*** Configuration file ".config" not found!
***
*** Please run some configurator (e.g. "make oldconfig" or
*** "make menuconfig" or "make xconfig").
***
make[3]: *** [silentoldconfig] Error 1
make[2]: *** [silentoldconfig] Error 2
    SUBDIR perf/

but then descends into tools/perf/

...

I haven't looked at the branch where KBUILD_OUTPUT is not empty yet,
maybe there we could do something...

> >  # Single targets
> >  # ---------------------------------------------------------------------------
> > diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
> > index 87b55a729a5f..297b51d8e4be 100644
> > --- a/tools/scripts/Makefile.include
> > +++ b/tools/scripts/Makefile.include
> > @@ -38,11 +38,18 @@ else
> >  NO_SUBDIR = :
> >  endif
> >  
> > -QUIET_SUBDIR0  = +$(MAKE) -C # space to separate -C and subdir
> > -QUIET_SUBDIR1  =
> 
> Who-ever came up with the names "QUIET_SUBDIR" must have had a bad day...
> I think you could do all the tricks using:
> 
> QUIET_MAKE = ...
> 
> It looks much simpler to use:
> 
> foo: bar
> 	$(QUIET_MAKE) ...
> 
> But this is another patch...

Right, so this could probably reuse the quiet_cmd_* machinery from the
toplevel Makefile now...

-- 
Regards/Gruss,
Boris.

Advanced Micro Devices GmbH
Einsteinring 24, 85609 Dornach
GM: Alberto Bozzo
Reg: Dornach, Landkreis Muenchen
HRB Nr. 43632 WEEE Registernr: 129 19551

  parent reply	other threads:[~2012-04-13 10:46 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-11 16:36 [PATCH v5 0/5] tools: Add a toplevel Makefile Borislav Petkov
2012-04-11 16:36 ` [PATCH v5 1/5] tools: Add Makefile.include Borislav Petkov
2012-04-13 18:14   ` [tip:perf/core] " tip-bot for Borislav Petkov
2012-04-11 16:36 ` [PATCH v5 2/5] tools: Cleanup EXTRA_WARNINGS Borislav Petkov
2012-04-13 18:15   ` [tip:perf/core] " tip-bot for Borislav Petkov
2012-04-11 16:36 ` [PATCH v5 3/5] tools: Add a toplevel Makefile Borislav Petkov
2012-04-13 18:16   ` [tip:perf/core] " tip-bot for Borislav Petkov
2012-04-11 16:36 ` [PATCH v5 4/5] tools: Add a help target Borislav Petkov
2012-04-13 18:17   ` [tip:perf/core] " tip-bot for Borislav Petkov
2012-04-11 16:36 ` [PATCH v5 5/5] tools: Connect to the kernel build system Borislav Petkov
2012-04-11 18:04   ` Arnaldo Carvalho de Melo
2012-04-11 18:08     ` Arnaldo Carvalho de Melo
2012-04-11 18:19       ` David Ahern
2012-04-11 19:45         ` Borislav Petkov
2012-04-11 19:52         ` Arnaldo Carvalho de Melo
2012-04-12 15:22       ` Borislav Petkov
2012-04-12 15:57         ` Sam Ravnborg
2012-04-12 18:33           ` Arnaldo Carvalho de Melo
2012-04-12 19:16             ` Sam Ravnborg
2012-04-12 19:31               ` Arnaldo Carvalho de Melo
2012-04-12 21:17             ` Alex Riesen
2012-04-13 10:45           ` Borislav Petkov [this message]
2012-04-11 19:47     ` Borislav Petkov
2012-04-13 18:18   ` [tip:perf/core] " tip-bot for Borislav Petkov
2012-04-14  6:35     ` Alex Riesen

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