path: root/samples/trace_events/Makefile
diff options
Diffstat (limited to 'samples/trace_events/Makefile')
1 files changed, 8 insertions, 0 deletions
diff --git a/samples/trace_events/Makefile b/samples/trace_events/Makefile
index 0d428dc6728..0f8d92120c4 100644
--- a/samples/trace_events/Makefile
+++ b/samples/trace_events/Makefile
@@ -1,6 +1,14 @@
# builds the trace events example kernel modules;
# then to use one (as root): insmod <module_name.ko>
+# If you include a trace header outside of include/trace/events
+# then the file that does the #define CREATE_TRACE_POINTS must
+# have that tracer file in its main search path. This is because
+# define_trace.h will include it, and must be able to find it from
+# the include/trace directory.
+# Here trace-events-sample.c does the CREATE_TRACE_POINTS.
CFLAGS_trace-events-sample.o := -I$(src)
obj-$(CONFIG_SAMPLE_TRACE_EVENTS) += trace-events-sample.o