tracing/core: Make the stack entry helpers global
Make the stacktrace event insertion helpers globals.
This has two effects:
- Prepare for moving the sched events insertion helpers to
the sched switch tracer file.
- Move some ifdef outside function definitions
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index b6211d6..d6059a4 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -866,10 +866,6 @@
return event;
}
-static void ftrace_trace_stack(struct trace_array *tr,
- unsigned long flags, int skip, int pc);
-static void ftrace_trace_userstack(struct trace_array *tr,
- unsigned long flags, int pc);
static inline void __trace_buffer_unlock_commit(struct trace_array *tr,
struct ring_buffer_event *event,
@@ -1003,11 +999,11 @@
trace_function(tr, ip, parent_ip, flags, pc);
}
+#ifdef CONFIG_STACKTRACE
static void __ftrace_trace_stack(struct trace_array *tr,
unsigned long flags,
int skip, int pc)
{
-#ifdef CONFIG_STACKTRACE
struct ftrace_event_call *call = &event_kernel_stack;
struct ring_buffer_event *event;
struct stack_entry *entry;
@@ -1028,12 +1024,10 @@
save_stack_trace(&trace);
if (!filter_check_discard(call, entry, tr->buffer, event))
ring_buffer_unlock_commit(tr->buffer, event);
-#endif
}
-static void ftrace_trace_stack(struct trace_array *tr,
- unsigned long flags,
- int skip, int pc)
+void ftrace_trace_stack(struct trace_array *tr, unsigned long flags, int skip,
+ int pc)
{
if (!(trace_flags & TRACE_ITER_STACKTRACE))
return;
@@ -1041,17 +1035,14 @@
__ftrace_trace_stack(tr, flags, skip, pc);
}
-void __trace_stack(struct trace_array *tr,
- unsigned long flags,
- int skip, int pc)
+void __trace_stack(struct trace_array *tr, unsigned long flags, int skip,
+ int pc)
{
__ftrace_trace_stack(tr, flags, skip, pc);
}
-static void ftrace_trace_userstack(struct trace_array *tr,
- unsigned long flags, int pc)
+void ftrace_trace_userstack(struct trace_array *tr, unsigned long flags, int pc)
{
-#ifdef CONFIG_STACKTRACE
struct ftrace_event_call *call = &event_user_stack;
struct ring_buffer_event *event;
struct userstack_entry *entry;
@@ -1076,7 +1067,6 @@
save_stack_trace_user(&trace);
if (!filter_check_discard(call, entry, tr->buffer, event))
ring_buffer_unlock_commit(tr->buffer, event);
-#endif
}
#ifdef UNUSED
@@ -1086,6 +1076,8 @@
}
#endif /* UNUSED */
+#endif /* CONFIG_STACKTRACE */
+
static void
ftrace_trace_special(void *__tr,
unsigned long arg1, unsigned long arg2, unsigned long arg3,