diff options
Diffstat (limited to 'samples/trace_events')
| -rw-r--r-- | samples/trace_events/trace-events-sample.h | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/samples/trace_events/trace-events-sample.h b/samples/trace_events/trace-events-sample.h index 9977a756fb3..f24ae370e51 100644 --- a/samples/trace_events/trace-events-sample.h +++ b/samples/trace_events/trace-events-sample.h @@ -1,21 +1,4 @@ /* - * Notice that this file is not protected like a normal header. - * We also must allow for rereading of this file. The - * - * || defined(TRACE_HEADER_MULTI_READ) - * - * serves this purpose. - */ -#if !defined(_TRACE_EVENT_SAMPLE_H) || defined(TRACE_HEADER_MULTI_READ) -#define _TRACE_EVENT_SAMPLE_H - -/* - * All trace headers should include tracepoint.h, until we finally - * make it into a standard header. - */ -#include <linux/tracepoint.h> - -/* * If TRACE_SYSTEM is defined, that will be the directory created * in the ftrace directory under /debugfs/tracing/events/<system> * @@ -34,11 +17,31 @@ * #define TRACE_INCLUDE_FILE trace-events-sample * * As we do an the bottom of this file. + * + * Notice that TRACE_SYSTEM should be defined outside of #if + * protection, just like TRACE_INCLUDE_FILE. */ #undef TRACE_SYSTEM #define TRACE_SYSTEM sample /* + * Notice that this file is not protected like a normal header. + * We also must allow for rereading of this file. The + * + * || defined(TRACE_HEADER_MULTI_READ) + * + * serves this purpose. + */ +#if !defined(_TRACE_EVENT_SAMPLE_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_EVENT_SAMPLE_H + +/* + * All trace headers should include tracepoint.h, until we finally + * make it into a standard header. + */ +#include <linux/tracepoint.h> + +/* * The TRACE_EVENT macro is broken up into 5 parts. * * name: name of the trace point. This is also how to enable the tracepoint. |