linux-kernel - [PATCH 2/3] tools build: Add jvmti feature detection support

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Message-Id: <1478093749-5602-3-git-send-email-jolsa@kernel.org>
Date:   Wed,  2 Nov 2016 14:35:48 +0100
From:   Jiri Olsa <jolsa@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Andi Kleen <andi@...stfloor.org>,
        William Cohen <wcohen@...hat.com>,
        Stephane Eranian <eranian@...gle.com>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>
Subject: [PATCH 2/3] 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.

Link: http://lkml.kernel.org/n/tip-0ijegqf46qirs2azru6gimdi@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/build/feature/Makefile     |  6 +++++-
 tools/build/feature/test-jvmti.c | 13 +++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 tools/build/feature/test-jvmti.c

diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index ac9c477a2a48..8f668bce8996 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 000000000000..1c665f09b9d6
--- /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;
+}
-- 
2.7.4