tracing: kprobes: Output kprobe event to printk buffer
Since kprobe-events use event_trigger_unlock_commit_regs() directly,
that events doesn't show up in printk buffer if "tp_printk" is set.
Use trace_event_buffer_commit() in kprobe events so that it can
invoke output_printk() as same as other trace events.
Link: http://lkml.kernel.org/r/157867233085.17873.5210928676787339604.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
[ Adjusted data var declaration placement in __kretprobe_trace_func() ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index b4294eb..cb850d2 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2680,9 +2680,9 @@ void trace_event_buffer_commit(struct trace_event_buffer *fbuffer)
if (static_key_false(&tracepoint_printk_key.key))
output_printk(fbuffer);
- event_trigger_unlock_commit(fbuffer->trace_file, fbuffer->buffer,
+ event_trigger_unlock_commit_regs(fbuffer->trace_file, fbuffer->buffer,
fbuffer->event, fbuffer->entry,
- fbuffer->flags, fbuffer->pc);
+ fbuffer->flags, fbuffer->pc, fbuffer->regs);
}
EXPORT_SYMBOL_GPL(trace_event_buffer_commit);