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Date:	Wed, 18 Mar 2015 10:24:10 +0200
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	"H.J. Lu" <hjl.tools@...il.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
CC:	"H. Peter Anvin" <hpa@...or.com>,
	Namhyung Kim <namhyung@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>, Jiri Olsa <jolsa@...nel.org>
Subject: Re: [PATCH] Check ARCH and IS_64_BIT instead of IS_X86_64 in perf

Hi

+Arnaldo
+Jiri

I would change the commit message and subject. Say:

Subject: perf tools: Fix perf-read-vdsox32 not building and lib64 install dir

Commit:

  c6e5e9fbc3ea ("perf tools: Fix building error in x86_64 when dwarf unwind is on")

removed the definition of IS_X86_64 but not all places
using it, with the consequence that perf-read-vdsox32
would not be built anymore, and the default lib install
directory was 'lib' instead of 'lib64'.

Also needs to go to v3.19.

Otherwise:

Acked-by: Adrian Hunter <adrian.hunter@...el.com>
Cc: stable@...r.kernel.org # 3.19


On 18/03/15 00:33, H.J. Lu wrote:
> IS_X86_64 is never defined nor necessary.  We check check ARCH and
> IS_64_BIT instead.
> 
> ifeq ($(IS_X86_64),1)
> 
> can be replaced by
> 
> ifeq ($(ARCH)$(IS_64_BIT), x861)
> 
> If IS_64_BIT is 1, we can replace
> 
> ifneq (${IS_X86_64}, 1)
> 
> with
> 
> ifneq ($(ARCH), x86)
> 
> 
> -- H.J.
> 
> 
> 0001-Check-ARCH-and-IS_64_BIT-instead-of-IS_X86_64-in-per.patch
> 
> 
> From 3ced13f64d49b2e4a9b38dd9bda80481a39d6b1a Mon Sep 17 00:00:00 2001
> From: "H.J. Lu" <hjl.tools@...il.com>
> Date: Tue, 17 Mar 2015 15:27:48 -0700
> Subject: [PATCH] Check ARCH and IS_64_BIT instead of IS_X86_64 in perf
> 
> IS_X86_64 is never defined nor necessary.  We check check ARCH and
> IS_64_BIT instead.
> 
> ifeq ($(IS_X86_64),1)
> 
> can be replaced by
> 
> ifeq ($(ARCH)$(IS_64_BIT), x861)
> 
> If IS_64_BIT is 1, we can replace
> 
> ifneq (${IS_X86_64}, 1)
> 
> with
> 
> ifneq ($(ARCH), x86)
> 
> Signed-off-by: H.J. Lu <hjl.tools@...il.com>
> ---
>  tools/perf/config/Makefile | 4 ++--
>  tools/perf/tests/make      | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
> index 648e31f..f97de8e 100644
> --- a/tools/perf/config/Makefile
> +++ b/tools/perf/config/Makefile
> @@ -645,7 +645,7 @@ ifeq (${IS_64_BIT}, 1)
>        NO_PERF_READ_VDSO32 := 1
>      endif
>    endif
> -  ifneq (${IS_X86_64}, 1)
> +  ifneq ($(ARCH), x86)
>      NO_PERF_READ_VDSOX32 := 1
>    endif
>    ifndef NO_PERF_READ_VDSOX32
> @@ -693,7 +693,7 @@ sysconfdir = $(prefix)/etc
>  ETC_PERFCONFIG = etc/perfconfig
>  endif
>  ifndef lib
> -ifeq ($(IS_X86_64),1)
> +ifeq ($(ARCH)$(IS_64_BIT), x861)
>  lib = lib64
>  else
>  lib = lib
> diff --git a/tools/perf/tests/make b/tools/perf/tests/make
> index 69a71ff..f8b24a2 100644
> --- a/tools/perf/tests/make
> +++ b/tools/perf/tests/make
> @@ -5,7 +5,7 @@ include config/Makefile.arch
>  
>  # FIXME looks like x86 is the only arch running tests ;-)
>  # we need some IS_(32/64) flag to make this generic
> -ifeq ($(IS_X86_64),1)
> +ifeq ($(ARCH)$(IS_64_BIT), x861)
>  lib = lib64
>  else
>  lib = lib
> -- 1.9.3
> 

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