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#!/usr/bin/env python3
# Copyright (C) 2020 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import re
import os
import sys
import glob
SRC_DIR = sys.argv[1]
KERNEL_CONFIG = sys.argv[2]
def load_config(path):
with open(KERNEL_CONFIG, 'r') as f:
config = f.read()
targets = re.findall(r'(.*)=(?:y|m)', config)
return targets
def find_subdirs(config, path):
try:
with open(os.path.join(path, 'Makefile'), 'r') as f:
makefile = f.read()
except OSError:
# No Makefile
return []
dir_stmts = re.findall(r'obj-\$\((.*)\)\s+\+=\s+(.*)(?:\n|$)', makefile)
subdirs = []
for ds in dir_stmts:
print("Processing make targets from {0} ({1})".format(ds[1], ds[0]), file=sys.stderr)
if ds[0] in config:
dirname = os.path.dirname(ds[1])
if dirname:
subdirs.append(dirname)
else:
print("{0} is disabled in the config, ignoring {1}".format(ds[0], ds[1]), file=sys.stderr)
return subdirs
def find_firmware(file):
with open(file, 'r') as f:
source = f.read()
fws = re.findall(r'MODULE_FIRMWARE\((.*)\)', source)
return fws
def walk_dir(config, path):
subdirs = find_subdirs(config, path)
print("Looking for C files in {0}".format(path), file=sys.stderr)
c_files = glob.glob("{0}/*.c".format(path))
for cf in c_files:
fws = find_firmware(cf)
if fws:
print("Referenced firmware: {0}".format(fws))
for d in subdirs:
d = os.path.join(path, d)
walk_dir(config, d)
if __name__ == '__main__':
config = load_config(KERNEL_CONFIG)
walk_dir(config, SRC_DIR)
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