1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
#!/usr/bin/env python3
#
# Generate a Coccinelle semantic patch to remove pointless QOM cast.
#
# Usage:
#
# $ qom-cast-macro-clean-cocci-gen.py $(git ls-files) > qom_pointless_cast.cocci
# $ spatch \
# --macro-file scripts/cocci-macro-file.h \
# --sp-file qom_pointless_cast.cocci \
# --keep-comments \
# --use-gitgrep \
# --in-place \
# --dir .
#
# SPDX-FileContributor: Philippe Mathieu-Daudé <philmd@linaro.org>
# SPDX-FileCopyrightText: 2023 Linaro Ltd.
# SPDX-License-Identifier: GPL-2.0-or-later
import re
import sys
assert len(sys.argv) > 0
def print_cocci_rule(qom_typedef, qom_cast_macro):
print(f'''@@
typedef {qom_typedef};
{qom_typedef} *obj;
@@
- {qom_cast_macro}(obj)
+ obj
''')
patterns = [
r'DECLARE_INSTANCE_CHECKER\((\w+),\W*(\w+),\W*TYPE_\w+\)',
r'DECLARE_OBJ_CHECKERS\((\w+),\W*\w+,\W*(\w+),\W*TYPE_\w+\)',
r'OBJECT_DECLARE_TYPE\((\w+),\W*\w+,\W*(\w+)\)',
r'OBJECT_DECLARE_SIMPLE_TYPE\((\w+),\W*(\w+)\)',
r'INTERFACE_CHECK\((\w+),\W*\(\w+\),\W*TYPE_(\w+)\)',
]
for fn in sys.argv[1:]:
try:
content = open(fn, 'rt').read()
except:
continue
for pattern in patterns:
for match in re.findall(pattern, content):
print_cocci_rule(match[0], match[1])
|
