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authorDaniil Baturin <daniil@baturin.org>2020-01-09 08:29:24 +0100
committerDaniil Baturin <daniil@baturin.org>2020-01-09 08:29:24 +0100
commit2b332ea0c3cd73abe403af17c4824b99eeb66365 (patch)
tree4cca4aec1d58bb4cb862950b0964a1b2dad21a47 /scripts/list-required-firmware
parenta7428b57e6f434d274768877edefd390b4801921 (diff)
downloadvyos-build-2b332ea0c3cd73abe403af17c4824b99eeb66365.tar.gz
vyos-build-2b332ea0c3cd73abe403af17c4824b99eeb66365.zip
T1958: add a prototype of the firmware list extraction script.
Diffstat (limited to 'scripts/list-required-firmware')
-rwxr-xr-xscripts/list-required-firmware75
1 files changed, 75 insertions, 0 deletions
diff --git a/scripts/list-required-firmware b/scripts/list-required-firmware
new file mode 100755
index 00000000..64280e03
--- /dev/null
+++ b/scripts/list-required-firmware
@@ -0,0 +1,75 @@
+#!/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)