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-rw-r--r--kernel/trace/trace.h38
1 files changed, 34 insertions, 4 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 02b592f2d4b7..ffc314b7e92b 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -210,6 +210,11 @@ struct trace_array {
struct list_head events;
cpumask_var_t tracing_cpumask; /* only trace on set CPUs */
int ref;
+#ifdef CONFIG_FUNCTION_TRACER
+ struct ftrace_ops *ops;
+ /* function tracing enabled */
+ int function_enabled;
+#endif
};
enum {
@@ -355,14 +360,16 @@ struct tracer {
void (*print_header)(struct seq_file *m);
enum print_line_t (*print_line)(struct trace_iterator *iter);
/* If you handled the flag setting, return 0 */
- int (*set_flag)(u32 old_flags, u32 bit, int set);
+ int (*set_flag)(struct trace_array *tr,
+ u32 old_flags, u32 bit, int set);
/* Return 0 if OK with change, else return non-zero */
- int (*flag_changed)(struct tracer *tracer,
+ int (*flag_changed)(struct trace_array *tr,
u32 mask, int set);
struct tracer *next;
struct tracer_flags *flags;
+ int enabled;
bool print_max;
- bool enabled;
+ bool allow_instances;
#ifdef CONFIG_TRACER_MAX_TRACE
bool use_max_tr;
#endif
@@ -812,13 +819,36 @@ static inline int ftrace_trace_task(struct task_struct *task)
return test_tsk_trace_trace(task);
}
extern int ftrace_is_dead(void);
+int ftrace_create_function_files(struct trace_array *tr,
+ struct dentry *parent);
+void ftrace_destroy_function_files(struct trace_array *tr);
#else
static inline int ftrace_trace_task(struct task_struct *task)
{
return 1;
}
static inline int ftrace_is_dead(void) { return 0; }
-#endif
+static inline int
+ftrace_create_function_files(struct trace_array *tr,
+ struct dentry *parent)
+{
+ return 0;
+}
+static inline void ftrace_destroy_function_files(struct trace_array *tr) { }
+#endif /* CONFIG_FUNCTION_TRACER */
+
+#if defined(CONFIG_FUNCTION_TRACER) && defined(CONFIG_DYNAMIC_FTRACE)
+void ftrace_create_filter_files(struct ftrace_ops *ops,
+ struct dentry *parent);
+void ftrace_destroy_filter_files(struct ftrace_ops *ops);
+#else
+/*
+ * The ops parameter passed in is usually undefined.
+ * This must be a macro.
+ */
+#define ftrace_create_filter_files(ops, parent) do { } while (0)
+#define ftrace_destroy_filter_files(ops) do { } while (0)
+#endif /* CONFIG_FUNCTION_TRACER && CONFIG_DYNAMIC_FTRACE */
int ftrace_event_is_function(struct ftrace_event_call *call);