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Diffstat (limited to 'include/linux/ftrace_event.h')
-rw-r--r--include/linux/ftrace_event.h22
1 files changed, 20 insertions, 2 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index cdc30111d2f8..d16da3e53bc7 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -7,6 +7,7 @@
#include <linux/percpu.h>
#include <linux/hardirq.h>
#include <linux/perf_event.h>
+#include <linux/tracepoint.h>
struct trace_array;
struct trace_buffer;
@@ -232,6 +233,7 @@ enum {
TRACE_EVENT_FL_IGNORE_ENABLE_BIT,
TRACE_EVENT_FL_WAS_ENABLED_BIT,
TRACE_EVENT_FL_USE_CALL_FILTER_BIT,
+ TRACE_EVENT_FL_TRACEPOINT_BIT,
};
/*
@@ -244,6 +246,7 @@ enum {
* (used for module unloading, if a module event is enabled,
* it is best to clear the buffers that used it).
* USE_CALL_FILTER - For ftrace internal events, don't use file filter
+ * TRACEPOINT - Event is a tracepoint
*/
enum {
TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT),
@@ -252,12 +255,17 @@ enum {
TRACE_EVENT_FL_IGNORE_ENABLE = (1 << TRACE_EVENT_FL_IGNORE_ENABLE_BIT),
TRACE_EVENT_FL_WAS_ENABLED = (1 << TRACE_EVENT_FL_WAS_ENABLED_BIT),
TRACE_EVENT_FL_USE_CALL_FILTER = (1 << TRACE_EVENT_FL_USE_CALL_FILTER_BIT),
+ TRACE_EVENT_FL_TRACEPOINT = (1 << TRACE_EVENT_FL_TRACEPOINT_BIT),
};
struct ftrace_event_call {
struct list_head list;
struct ftrace_event_class *class;
- char *name;
+ union {
+ char *name;
+ /* Set TRACE_EVENT_FL_TRACEPOINT flag when using "tp" */
+ struct tracepoint *tp;
+ };
struct trace_event event;
const char *print_fmt;
struct event_filter *filter;
@@ -271,6 +279,7 @@ struct ftrace_event_call {
* bit 3: ftrace internal event (do not enable)
* bit 4: Event was enabled by module
* bit 5: use call filter rather than file filter
+ * bit 6: Event is a tracepoint
*/
int flags; /* static flags of different events */
@@ -283,6 +292,15 @@ struct ftrace_event_call {
#endif
};
+static inline const char *
+ftrace_event_name(struct ftrace_event_call *call)
+{
+ if (call->flags & TRACE_EVENT_FL_TRACEPOINT)
+ return call->tp ? call->tp->name : NULL;
+ else
+ return call->name;
+}
+
struct trace_array;
struct ftrace_subsystem_dir;
@@ -353,7 +371,7 @@ struct ftrace_event_file {
#define __TRACE_EVENT_FLAGS(name, value) \
static int __init trace_init_flags_##name(void) \
{ \
- event_##name.flags = value; \
+ event_##name.flags |= value; \
return 0; \
} \
early_initcall(trace_init_flags_##name);