[tip:perf/urgent] tools: Move Makefile.arch from perf/ config to tools/scripts

[tip-bot for Wang Nan]

Commit-ID:  935e6bd310f20d3371ae6bd6f01dd3430a4123b6
Gitweb:     http://git.kernel.org/tip/935e6bd310f20d3371ae6bd6f01dd3430a4123b6
Author:     Wang Nan <wangnan0@xxxxxxxxxx>
AuthorDate: Mon, 11 Jan 2016 13:47:58 +0000
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 11 Jan 2016 19:22:20 -0300

tools: Move Makefile.arch from perf/config to tools/scripts

After this patch other directories can use this architecture detector
without directly including it from perf's directory. Libbpf would
utilize it to get proper $(ARCH) so it can receive correct uapi include
directory.

Tested-by: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx>
Cc: Zefan Li <lizefan@xxxxxxxxxx>
Cc: pi3orama@xxxxxxx
Signed-off-by: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1452520124-2073-8-git-send-email-wangnan0@xxxxxxxxxx
[ Add missing srctree definition in tests/make ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/config/Makefile                   |  2 +-
 tools/perf/tests/make                        | 16 +++++++++++++++-
 tools/{perf/config => scripts}/Makefile.arch |  0
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 0793c76..7545ba60 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -17,7 +17,7 @@ detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
 
 CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
 
-include $(src-perf)/config/Makefile.arch
+include $(srctree)/tools/scripts/Makefile.arch
 
 $(call detected_var,ARCH)
 
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 130be7c..df38dec 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -1,3 +1,5 @@
+include ../scripts/Makefile.include
+
 ifndef MK
 ifeq ($(MAKECMDGOALS),)
 # no target specified, trigger the whole suite
@@ -12,7 +14,19 @@ endif
 else
 PERF := .
 
-include config/Makefile.arch
+# As per kernel Makefile, avoid funny character set dependencies
+unexport LC_ALL
+LC_COLLATE=C
+LC_NUMERIC=C
+export LC_COLLATE LC_NUMERIC
+
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(shell pwd)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+#$(info Determined 'srctree' to be $(srctree))
+endif
+
+include $(srctree)/tools/scripts/Makefile.arch
 
 # FIXME looks like x86 is the only arch running tests ;-)
 # we need some IS_(32/64) flag to make this generic
diff --git a/tools/perf/config/Makefile.arch b/tools/scripts/Makefile.arch
similarity index 100%
rename from tools/perf/config/Makefile.arch
rename to tools/scripts/Makefile.arch