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authorIan Rogers <irogers@google.com>2021-09-23 03:10:21 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-09-28 22:08:37 +0300
commitb758a61b391fb5ed749f4848f444d8223ae0a324 (patch)
tree29390abf6af50f9efc9438f8525fb8b86e80021b /tools/build
parent3d5ac9effcc640d5d66bc6d833e1dcc9faa279aa (diff)
downloadlinux-b758a61b391fb5ed749f4848f444d8223ae0a324.tar.xz
perf tools: Enable libtracefs dynamic linking
Currently libtracefs isn't used by perf, but there are potential improvements by using it as identified Steven Rostedt's e-mail: https://lore.kernel.org/lkml/20210610154759.1ef958f0@oasis.local.home/ This change is modelled on the dynamic libtraceevent patch by Michael Petlan: https://lore.kernel.org/linux-perf-users/20210428092023.4009-1-mpetlan@redhat.com/ v3. Adds file missed in v1 and v2 spotted by Jiri Olsa. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com> Cc: linux-trace-devel@vger.kernel.org Link: http://lore.kernel.org/lkml/20210923001024.550263-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/build')
-rw-r--r--tools/build/Makefile.feature1
-rw-r--r--tools/build/feature/Makefile4
-rw-r--r--tools/build/feature/test-libtracefs.c10
3 files changed, 15 insertions, 0 deletions
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 3dd2f68366f9..45a9a59828c3 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -52,6 +52,7 @@ FEATURE_TESTS_BASIC := \
libslang \
libslang-include-subdir \
libtraceevent \
+ libtracefs \
libcrypto \
libunwind \
pthread-attr-setaffinity-np \
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index eff55d287db1..d024b5204ba0 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -36,6 +36,7 @@ FILES= \
test-libslang.bin \
test-libslang-include-subdir.bin \
test-libtraceevent.bin \
+ test-libtracefs.bin \
test-libcrypto.bin \
test-libunwind.bin \
test-libunwind-debug-frame.bin \
@@ -199,6 +200,9 @@ $(OUTPUT)test-libslang-include-subdir.bin:
$(OUTPUT)test-libtraceevent.bin:
$(BUILD) -ltraceevent
+$(OUTPUT)test-libtracefs.bin:
+ $(BUILD) -ltracefs
+
$(OUTPUT)test-libcrypto.bin:
$(BUILD) -lcrypto
diff --git a/tools/build/feature/test-libtracefs.c b/tools/build/feature/test-libtracefs.c
new file mode 100644
index 000000000000..8eff16c0c10b
--- /dev/null
+++ b/tools/build/feature/test-libtracefs.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <tracefs/tracefs.h>
+
+int main(void)
+{
+ struct tracefs_instance *inst = tracefs_instance_create("dummy");
+
+ tracefs_instance_destroy(inst);
+ return 0;
+}