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Subject[PATCH 012/161] tools/perf/build: Split out feature check: 'glibc'
Date
From: Ingo Molnar <mingo@kernel.org>

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-nqnnsptw7ivOzhzbNjiun7ds@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
tools/perf/config/Makefile | 4 ++--
tools/perf/config/feature-checks/Makefile | 4 ++++
tools/perf/config/feature-checks/test-glibc.c | 8 ++++++++
3 files changed, 14 insertions(+), 2 deletions(-)
create mode 100644 tools/perf/config/feature-checks/test-glibc.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 68654281b973..8cd0fd82967c 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -109,6 +109,7 @@ FEATURE_TESTS = \
fortify-source \
bionic \
libelf \
+ glibc \
libnuma

$(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -166,8 +167,7 @@ ifdef NO_LIBELF
NO_LIBUNWIND := 1
else
ifeq ($(feature-libelf), 0)
- FLAGS_GLIBC=$(CFLAGS) $(LDFLAGS)
- ifeq ($(call try-cc,$(SOURCE_GLIBC),$(FLAGS_GLIBC),glibc),y)
+ ifeq ($(feature-glibc), 1)
LIBC_SUPPORT := 1
endif
ifeq ($(BIONIC),1)
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 789a38d21a34..c0569c7edb89 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -7,6 +7,7 @@ FILES= \
test-fortify-source \
test-bionic \
test-libelf \
+ test-glibc \
test-libnuma

CC := $(CC) -MD
@@ -38,6 +39,9 @@ test-bionic:
test-libelf:
$(BUILD) -lelf

+test-glibc:
+ $(BUILD)
+
test-libnuma:
$(BUILD) -lnuma

diff --git a/tools/perf/config/feature-checks/test-glibc.c b/tools/perf/config/feature-checks/test-glibc.c
new file mode 100644
index 000000000000..13c66a58f2ec
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-glibc.c
@@ -0,0 +1,8 @@
+#include <gnu/libc-version.h>
+
+int main(void)
+{
+ const char *version = gnu_get_libc_version();
+ return (long)version;
+}
+
--
1.8.1.4


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