linux-kernel - [PATCH 04/50] tools/perf/build: Split out feature check: 'libnuma'

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Date:	Mon,  7 Oct 2013 13:55:57 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	linux-kernel@...r.kernel.org
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...hat.com>
Subject: [PATCH 04/50] tools/perf/build: Split out feature check: 'libnuma'

Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Link: http://lkml.kernel.org/n/tip-vixsrpggxFjhz7kppqgrGr6s@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 tools/perf/config/Makefile                      | 7 ++++---
 tools/perf/config/feature-checks/Makefile       | 7 ++++++-
 tools/perf/config/feature-checks/test-libnuma.c | 8 ++++++++
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index daefe2d..f39fc22 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -101,7 +101,9 @@ $(info Testing features:)
 $(shell make -i -j -C config/feature-checks >/dev/null 2>&1)
 $(info done)
 
-FEATURE_TESTS = hello
+FEATURE_TESTS =				\
+	hello				\
+	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
 
@@ -434,8 +436,7 @@ ifndef NO_BACKTRACE
 endif
 
 ifndef NO_LIBNUMA
-  FLAGS_LIBNUMA = $(CFLAGS) $(LDFLAGS) -lnuma
-  ifneq ($(call try-cc,$(SOURCE_LIBNUMA),$(FLAGS_LIBNUMA),libnuma),y)
+  ifeq ($(feature-libnuma), 0)
     msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numa-libs-devel or libnuma-dev);
     NO_LIBNUMA := 1
   else
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 4708cca..6a42ad2 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -1,5 +1,7 @@
 
-FILES=test-hello
+FILES=					\
+	test-hello			\
+	test-libnuma
 
 CC := $(CC) -MD
 
@@ -12,6 +14,9 @@ BUILD = $(CC) -o $(OUTPUT)$@ $@.c
 test-hello:
 	$(BUILD)
 
+test-libnuma:
+	$(BUILD) -lnuma
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-libnuma.c b/tools/perf/config/feature-checks/test-libnuma.c
new file mode 100644
index 0000000..70510a9
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libnuma.c
@@ -0,0 +1,8 @@
+#include <numa.h>
+#include <numaif.h>
+
+int main(void)
+{
+	numa_available();
+	return 0;
+}
-- 
1.7.11.7

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