linux-kernel - Re: [PATCH 5/5] perf: add Makefile.deps for easier cross compiling

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Date:	Tue, 13 Oct 2015 13:52:13 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Rabin Vincent <rabin.vincent@...s.com>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/5] perf: add Makefile.deps for easier cross compiling

On Tue, Oct 13, 2015 at 12:50:29PM +0200, Rabin Vincent wrote:
> On Mon, Oct 12, 2015 at 01:42:29PM +0200, Jiri Olsa wrote:
> > On Sun, Sep 27, 2015 at 08:37:59PM +0200, Rabin Vincent wrote:
> > > In order to make it easier for people to qucikly get up and running with
> > > a fairly full featured cross-compiled mainline perf, provide a
> > > Makefile.deps which will download and build the required libraries,
> > > which can then be used in a static build of perf:
> > > 
> > >  $ make ARCH=arm CROSS_COMPILE=arm-linux- -f Makefile.deps
> > 
> > Makefile.cross_compile or Makefile.cross might suit better
> 
> OK, I will change it to Makefile.cross.
> 
> > Could you provide more details help/doc on how to use it
> > and what it's actualy doing?
> 
> I will add comments to the file with this information.
> 
> > running the command from changelog failed on my setup,
> > please check attached log
> 
> Looks like you don't have a compiler with the name arm-linux-gcc in your
> PATH?  The CROSS_COMPILE flag has the same meaning as in the perf and
> kernel builds: it's the prefix for a cross-toolchain which is available
> on the host.

could the doc have this description as well? to have
complete info on how to make it cross compile

thanks,
jirka
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