linux-kernel - [tip:perf/core] tools build: Add HOSTARCH Makefile variable

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Date:	Mon, 25 Jul 2016 11:10:37 -0700
From:	tip-bot for Arnaldo Carvalho de Melo <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	wangnan0@...wei.com, hpa@...or.com, adrian.hunter@...el.com,
	linux-kernel@...r.kernel.org, dsahern@...il.com, jolsa@...nel.org,
	mingo@...nel.org, namhyung@...nel.org, jpoimboe@...hat.com,
	tglx@...utronix.de, acme@...hat.com, sfr@...b.auug.org.au
Subject: [tip:perf/core] tools build: Add HOSTARCH Makefile variable

Commit-ID:  0a943cb10ce783a1c55adf6f52f62bcbd5f49314
Gitweb:     http://git.kernel.org/tip/0a943cb10ce783a1c55adf6f52f62bcbd5f49314
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Fri, 22 Jul 2016 09:55:53 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 22 Jul 2016 16:25:45 -0300

tools build: Add HOSTARCH Makefile variable

For tools that needs to be always compiled with the host headers.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/n/tip-907q32k2nep6q670dkxypmu6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/scripts/Makefile.arch | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/tools/scripts/Makefile.arch b/tools/scripts/Makefile.arch
index e11fbd6..887321c 100644
--- a/tools/scripts/Makefile.arch
+++ b/tools/scripts/Makefile.arch
@@ -1,14 +1,13 @@
-ifndef ARCH
-ARCH := $(shell uname -m 2>/dev/null || echo not)
-endif
-
-ARCH := $(shell echo $(ARCH) | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
+HOSTARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
                                   -e s/sun4u/sparc/ -e s/sparc64/sparc/ \
                                   -e /arm64/!s/arm.*/arm/ -e s/sa110/arm/ \
                                   -e s/s390x/s390/ -e s/parisc64/parisc/ \
                                   -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
                                   -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
                                   -e s/tile.*/tile/ )
+ifndef ARCH
+ARCH := $(HOSTARCH)
+endif
 
 LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
 ifeq ($(LP64), 1)