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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0-only
import fnmatch
import os
import re
import argparse
def parse_of_declare_macros(data):
""" Find all compatible strings in OF_DECLARE() style macros """
compat_list = []
# CPU_METHOD_OF_DECLARE does not have a compatible string
for m in re.finditer(r'(?<!CPU_METHOD_)(IRQCHIP|OF)_(DECLARE|MATCH)(_DRIVER)?\(.*?\)', data):
try:
compat = re.search(r'"(.*?)"', m[0])[1]
except:
# Fails on compatible strings in #define, so just skip
continue
compat_list += [compat]
return compat_list
def parse_of_device_id(data):
""" Find all compatible strings in of_device_id structs """
compat_list = []
for m in re.finditer(r'of_device_id\s+[a-zA-Z0-9_]+\[\]\s*=\s*({.*?);', data):
compat_list += re.findall(r'\.compatible\s+=\s+"([a-zA-Z0-9_\-,]+)"', m[1])
return compat_list
def parse_compatibles(file):
with open(file, 'r', encoding='utf-8') as f:
data = f.read().replace('\n', '')
compat_list = parse_of_declare_macros(data)
compat_list += parse_of_device_id(data)
return compat_list
def print_compat(filename, compatibles):
if not compatibles:
return
if show_filename:
compat_str = ' '.join(compatibles)
print(filename + ": compatible(s): " + compat_str)
else:
print(*compatibles, sep='\n')
def glob_without_symlinks(root, glob):
for path, dirs, files in os.walk(root):
# Ignore hidden directories
for d in dirs:
if fnmatch.fnmatch(d, ".*"):
dirs.remove(d)
for f in files:
if fnmatch.fnmatch(f, glob):
yield os.path.join(path, f)
def files_to_parse(path_args):
for f in path_args:
if os.path.isdir(f):
for filename in glob_without_symlinks(f, "*.c"):
yield filename
else:
yield f
show_filename = False
if __name__ == "__main__":
ap = argparse.ArgumentParser()
ap.add_argument("cfile", type=str, nargs='*', help="C source files or directories to parse")
ap.add_argument('-H', '--with-filename', help="Print filename with compatibles", action="store_true")
args = ap.parse_args()
show_filename = args.with_filename
for f in files_to_parse(args.cfile):
compat_list = parse_compatibles(f)
print_compat(f, compat_list)
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