From: "Daniel P. Berrange" <berrange@redhat.com>

The content of the backends/trace-events file was entirely
removed in

  commit 6b10e573d15ef82dbc5c5b3726028e6642e134f6
  Author: Marc-André Lureau <marcandre.lureau@redhat.com>
  Date:   Mon May 29 12:39:42 2017 +0400

    char: move char devices to chardev/

Leaving the empty file around, causes tracetool to generate
an empty .dtrace file which makes the dtrace compiler throw
a syntax error.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20170629162046.4135-1-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 Makefile.objs         | 1 -
 backends/trace-events | 0
 2 files changed, 1 deletion(-)
 delete mode 100644 backends/trace-events

diff --git a/Makefile.objs b/Makefile.objs
index 3e24c32..bfd5a6c 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -122,7 +122,6 @@ trace-events-subdirs += crypto
 trace-events-subdirs += io
 trace-events-subdirs += migration
 trace-events-subdirs += block
-trace-events-subdirs += backends
 trace-events-subdirs += chardev
 trace-events-subdirs += hw/block
 trace-events-subdirs += hw/block/dataplane
diff --git a/backends/trace-events b/backends/trace-events
deleted file mode 100644
index e69de29..0000000
-- 
2.9.4