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Date: Sat, 7 May 2011 12:55:29 +0800
Message-ID: <BANLkTikvtJex=fGYw0f6v8pMKhkWmaM2sA@mail.gmail.com>
Subject: Re: compiling of tools/perf fail on x86 64bit kernel and 32bit userspace
From: Lin Ming <minggr@gmail.com>
To: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
        Ingo Molnar <mingo@elte.hu>
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On Sat, May 7, 2011 at 12:54 AM, Riccardo Magliocchetti
<riccardo.magliocchetti@gmail.com> wrote:
> Hi,
>
> with latest git, i cannot compile perf on 32 bit userspace with a 64 bit
> kernel.
>
> ~/src/linux-2.6/tools/perf$ make
> PERF_VERSION = 2.6.39.rc6.224.g06d006f
> ? ?GEN common-cmds.h
> ? ?* new build flags or prefix
> ? ?CC perf.o
> ? ?CC builtin-annotate.o
> ? ?CC builtin-bench.o
> ? ?CC bench/sched-messaging.o
> ? ?CC bench/sched-pipe.o
> ? ?CC bench/mem-memcpy-x86-64-asm.o
> bench/../../../arch/x86/lib/memcpy_64.S: Assembler messages:
> bench/../../../arch/x86/lib/memcpy_64.S:28: Error: bad register name `%rdi'
> bench/../../../arch/x86/lib/memcpy_64.S:33: Error: invalid instruction
> suffix for `movs'

Hi,

I just send out a patch to fix this.
https://lkml.org/lkml/2011/5/7/4

Could you have a try it?

Thanks,
Lin Ming
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