[tip:perf/core] tools build: Add jvmti feature detection support

[tip-bot for Jiri Olsa <tipbot@zytor.com>]

Commit-ID:  285932a25879602407f207e862bc5b8416711f42
Gitweb:     http://git.kernel.org/tip/285932a25879602407f207e862bc5b8416711f42
Author:     Jiri Olsa <jolsa@kernel.org>
AuthorDate: Wed, 2 Nov 2016 14:35:48 +0100
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 14 Nov 2016 12:40:32 -0300

tools build: Add jvmti feature detection support

Adding support to detect jvmti support. It is not plugged into the
FEATURE_TESTS machinery, because it's quite rare and will be used
separately from perf via feature_check call.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Stephane Eranian <eranian@google.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: William Cohen <wcohen@redhat.com>
Link: http://lkml.kernel.org/r/1478093749-5602-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/build/feature/Makefile     |  6 +++++-
 tools/build/feature/test-jvmti.c | 13 +++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index ac9c477..8f668bc 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -47,7 +47,8 @@ FILES=					\
 	test-bpf.bin			\
 	test-get_cpuid.bin		\
 	test-sdt.bin			\
-	test-cxx.bin
+	test-cxx.bin			\
+	test-jvmti.bin
 
 FILES := $(addprefix $(OUTPUT),$(FILES))
 
@@ -225,6 +226,9 @@ $(OUTPUT)test-sdt.bin:
 $(OUTPUT)test-cxx.bin:
 	$(BUILDXX) -std=gnu++11
 
+$(OUTPUT)test-jvmti.bin:
+	$(BUILD)
+
 -include $(OUTPUT)*.d
 
 ###############################
diff --git a/tools/build/feature/test-jvmti.c b/tools/build/feature/test-jvmti.c
new file mode 100644
index 0000000..1c665f0
--- /dev/null
+++ b/tools/build/feature/test-jvmti.c
@@ -0,0 +1,13 @@
+#include <jvmti.h>
+#include <jvmticmlr.h>
+
+int main(void)
+{
+	JavaVM			jvm	__attribute__((unused));
+	jvmtiEventCallbacks	cb	__attribute__((unused));
+	jvmtiCapabilities	caps	__attribute__((unused));
+	jvmtiJlocationFormat	format	__attribute__((unused));
+	jvmtiEnv		jvmti	__attribute__((unused));
+
+	return 0;
+}