linux-kernel - Re: [PATCH v3 1/1] perf tools: fix perf build with ARCH=x86

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Date:   Mon, 17 Apr 2017 20:30:56 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Jiada Wang <jiada_wang@...tor.com>
Cc:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
        wangnan0@...wei.com, ravi.bangoria@...ux.vnet.ibm.com,
        mhiramat@...nel.org, linux-kernel@...r.kernel.org,
        erosca@...adit-jv.com
Subject: Re: [PATCH v3 1/1] perf tools: fix perf build with ARCH=x86_64

On Mon, Apr 17, 2017 at 02:31:28AM -0700, Jiada Wang wrote:
> On 04/10/2017 12:44 AM, Jiri Olsa wrote:
> > On Sun, Apr 09, 2017 at 07:43:15PM -0700, Jiada Wang wrote:
> > > Hello Jiri
> > > 
> > > On 04/09/2017 10:27 AM, Jiri Olsa wrote:
> > > > On Tue, Apr 04, 2017 at 11:25:44PM -0700, jiada_wang@...tor.com wrote:
> > > > > From: Jiada Wang<jiada_wang@...tor.com>
> > > > > 
> > > > > with commit: 0a943cb10ce78 (tools build: Add HOSTARCH Makefile variable)
> > > > > the following build failure is seen when build with ARCH=x86_64
> > > > is that described somewhere as a valid building interface?
> > > > I never use it so I have no idea.. would you describe your
> > > > build env/process?
> > > I used "ARCH=x86_64 make -C tools perf V=1" to build perf for x86_64 ARCH.
> > you're on x86 machine right? I don't see CROSS_COMPILE being used..
> > 
> > what's the purpose of the ARCH var setup then?
> Sorry for late response.
> 
> Yes, I am on x86 machine, and want to build for x86_64,
> I didn't mention CROSS_COMPILE option in my last reply is because no
> matter what 'CROSS_COMPILE' is, the issue can be reproduced when
> ARCH=X86_64.
> 
> The full command I used to build perf, is somewhat near to
> make -C tools perf V=2 ARCH=x86_64 CROSS_COMPILE=i686-pc-linux-gnc-g
> CC=i686-pc-linux-gnc-gcc

ook, I think I've already acked the v4 you sent

thanks,
jirka