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authorIngo Molnar <mingo@elte.hu>2008-07-14 15:58:35 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-14 15:58:35 +0200
commit6712e299b7dc78aa4971b85e803435ee6d49a9dd (patch)
treeb3d17a2d068737ec07727b28e93c7d374c27721b /kernel/trace/trace.h
parentec1bb60bbff0386c3ec25360e7a8c72f467a6ff1 (diff)
parentb2613e370dbeb69edbff989382fa54f2395aa471 (diff)
Merge branch 'tracing/ftrace' into auto-ftrace-next
Diffstat (limited to 'kernel/trace/trace.h')
-rw-r--r--kernel/trace/trace.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 8cb215b239d..f69f86788c2 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -223,8 +223,6 @@ void trace_function(struct trace_array *tr,
unsigned long parent_ip,
unsigned long flags);
-void tracing_start_function_trace(void);
-void tracing_stop_function_trace(void);
void tracing_start_cmdline_record(void);
void tracing_stop_cmdline_record(void);
int register_tracer(struct tracer *type);
@@ -241,6 +239,14 @@ void update_max_tr_single(struct trace_array *tr,
extern cycle_t ftrace_now(int cpu);
+#ifdef CONFIG_FTRACE
+void tracing_start_function_trace(void);
+void tracing_stop_function_trace(void);
+#else
+# define tracing_start_function_trace() do { } while (0)
+# define tracing_stop_function_trace() do { } while (0)
+#endif
+
#ifdef CONFIG_CONTEXT_SWITCH_TRACER
typedef void
(*tracer_switch_func_t)(void *private,