trace: pass trace-events to tracetool as a positional param
Instead of reading the contents of 'trace-events' from stdin,
accept the filename as a positional parameter. This also
allows for reading from multiple files, though this facility
is not used at this time.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1475588159-30598-20-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/scripts/tracetool.py b/scripts/tracetool.py
index 6accbbf..f66e767 100755
--- a/scripts/tracetool.py
+++ b/scripts/tracetool.py
@@ -129,7 +129,10 @@
if probe_prefix is None:
probe_prefix = ".".join(["qemu", target_type, target_name])
- events = tracetool.read_events(sys.stdin)
+ if len(args) != 1:
+ error_opt("missing trace-events filepath")
+ with open(args[0], "r") as fh:
+ events = tracetool.read_events(fh)
try:
tracetool.generate(events, arg_format, arg_backends,