tracetool: report error on foo() instead of foo(void)
C functions with no arguments must be declared foo(void) instead of
foo(). The tracetool argument list parser has never accepted an empty
argument list. This patch adds a clear error message for this error
case.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180110202553.31889-4-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/scripts/tracetool/__init__.py b/scripts/tracetool/__init__.py
index e3685bd..1a9733d 100644
--- a/scripts/tracetool/__init__.py
+++ b/scripts/tracetool/__init__.py
@@ -75,6 +75,8 @@
res = []
for arg in arg_str.split(","):
arg = arg.strip()
+ if not arg:
+ raise ValueError("Empty argument (did you forget to use 'void'?)")
if arg == 'void':
continue
