libvirt/scripts/mock-noinline.py

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#!/usr/bin/env python
#
# Copyright (C) 2017-2019 Red Hat, Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see
# <http://www.gnu.org/licenses/>.
from __future__ import print_function
import re
import sys
noninlined = {}
mocked = {}
# Functions in public header don't get the noinline annotation
# so whitelist them here
noninlined["virEventAddTimeout"] = True
# This one confuses the script as its defined in the mock file
# but is actually just a local helper
noninlined["virMockStatRedirect"] = True
def scan_annotations(filename):
with open(filename, "r") as fh:
func = None
for line in fh:
m = re.search(r'''^\s*(\w+)\(''', line)
if m is None:
m = re.search(r'''^(?:\w+\*?\s+)+(?:\*\s*)?(\w+)\(''', line)
if m is not None:
name = m.group(1)
if "ATTRIBUTE" not in name and "G_GNUC_" not in name:
func = name
elif line.isspace():
func = None
if "G_GNUC_NO_INLINE" in line:
if func is not None:
noninlined[func] = True
def scan_overrides(filename):
with open(filename, "r") as fh:
lineno = 0
for line in fh:
lineno = lineno + 1
m = re.search(r'''^(\w+)\(''', line)
if m is None:
m = re.search(r'''^\w+\s*(?:\*\s*)?(\w+)\(''', line)
if m is not None:
name = m.group(1)
if name.startswith("vir"):
mocked[name] = "%s:%d" % (filename, lineno)
for filename in sys.argv[1:]:
if filename.endswith(".h"):
scan_annotations(filename)
elif filename.endswith("mock.c"):
scan_overrides(filename)
warned = False
for func in mocked.keys():
if func not in noninlined:
warned = True
print("%s is mocked at %s but missing noinline annotation" %
(func, mocked[func]), file=sys.stderr)
if warned:
sys.exit(1)
sys.exit(0)