linux-kernel - Re: [PATCH 05/21] perf: rewire generic library stuff, p1

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Date:	Thu, 1 Jul 2010 18:17:38 +0200
From:	Borislav Petkov <bp@...64.org>
To:	Arnaldo Carvalho de Melo <acme@...radead.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 05/21] perf: rewire generic library stuff, p1

From: Arnaldo Carvalho de Melo <acme@...radead.org>
Date: Thu, Jul 01, 2010 at 12:10:54PM -0400

Hi Arnaldo,

> Em Thu, Jul 01, 2010 at 12:47:37PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Thu, Jul 01, 2010 at 03:49:19PM +0200, Borislav Petkov escreveu:
> > > From: Borislav Petkov <borislav.petkov@....com>
> > > 
> > > Carve out generic library stuff into tools/lib/lk/ and rewire it with
> > > perf. Add a top-level Makefile which selects between targets depending
> > > on the tool we want to build. Also, add a Makefile.lib for common
> > > facilities used by all the Makefiles.
> > 
> > Testing this now, thanks,
> 
> Needs the patch below for "make O=~/build/perf tools" to continue
> working. Needs some more polishing so as not to break the non O= case.
> 
> After lunch will investigate why my usual way to build the tools isn't working
> anymore, some missing -I probably:
> 
> [acme@...lia linux-2.6-tip]$ make O=~/git/build/perf -C tools/perf install
> make: Entering directory `/home/acme/git/linux-2.6-tip/tools/perf'
>     CC /home/acme/git/build/perf/builtin-record.o
> builtin-record.c:24:23: error: lk/cpumap.h: No such file or directory
> cc1: warnings being treated as errors
> builtin-record.c: In function ‘__cmd_record’:
> builtin-record.c:622: error: implicit declaration of function ‘read_cpu_map’
> builtin-record.c:632: error: ‘cpumap’ undeclared (first use in this function)
> builtin-record.c:632: error: (Each undeclared identifier is reported only once
> builtin-record.c:632: error: for each function it appears in.)
> make: *** [/home/acme/git/build/perf/builtin-record.o] Error 1
> make: Leaving directory `/home/acme/git/linux-2.6-tip/tools/perf'
> [acme@...lia linux-2.6-tip]$
> 
> diff --git a/tools/lib/Makefile b/tools/lib/Makefile
> index 48f8e21..814673e 100644
> --- a/tools/lib/Makefile
> +++ b/tools/lib/Makefile
> @@ -5,6 +5,9 @@ LIB_H =
>  LIB_OBJS =
>  
>  LIB_H += lk/cpumap.h
> +OUTPUT := $(OUTPUT)/lib/
> +
> +$(shell sh -c 'mkdir -p $(OUTPUT)/lk' 2> /dev/null)
>  
>  LIB_OBJS += $(OUTPUT)lk/bitmap.o
>  LIB_OBJS += $(OUTPUT)lk/cpumap.o

I'll fix that up, thanks for testing.

-- 
Regards/Gruss,
Boris.

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