blob: cfa3ade7fed55120bf20dfdbbcaf6d1da0c508b3 [file] [log] [blame]
#!/usr/bin/env python
#
# Copyright 2015 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Generates the Android.bp file for prebuilts/ndk."""
import os
def local_path(path):
"""Returns an abspath to the given path from this file's directory."""
return os.path.normpath(os.path.join(os.path.dirname(__file__), path))
def find(path, names):
"""Finds a list of files in a directory that match the given names."""
found = []
for root, _, files in os.walk(path):
for file_name in sorted(files):
if file_name in names:
abspath = os.path.abspath(os.path.join(root, file_name))
rel_to_root = abspath.replace(os.path.abspath(path), '')
found.append(rel_to_root[1:]) # strip leading /
return found
def sdk_version_from_path(path):
"""Returns the integer SDK version for the given path."""
return int(path.split('/')[0].split('-')[1])
def get_prebuilts(names):
"""Returns a list of prebuilt objects that match the given names."""
prebuilts_path = local_path('current/platforms')
prebuilts = find(prebuilts_path, names)
prebuilts = [p for p in prebuilts if 'arch-arm/' in p]
prebuilts.sort(key=sdk_version_from_path)
return prebuilts
def gen_crt_prebuilt(_, name, version):
"""Generate a module for a CRT prebuilt object."""
return ('ndk_prebuilt_object {{\n'
' name: "ndk_{name}.{version}",\n'
' sdk_version: "{version}",\n'
'}}'.format(name=name, version=version))
def gen_prebuilts(module_generator, names):
"""Generate blueprints for the given modules."""
prebuilts = []
for prebuilt in get_prebuilts(names):
name = os.path.splitext(os.path.basename(prebuilt))[0]
version = sdk_version_from_path(prebuilt)
if version < 9:
# We don't support anything before Gingerbread any more.
continue
prebuilts.append(module_generator(prebuilt, name, version))
return prebuilts
def main():
"""Program entry point."""
blueprints = gen_prebuilts(gen_crt_prebuilt, (
'crtbegin_so.o',
'crtend_so.o',
'crtbegin_dynamic.o',
'crtbegin_static.o',
'crtend_android.o'))
with open(local_path('Android.bp'), 'w') as bpfile:
bpfile.write('// THIS FILE IS AUTOGENERATED BY gen_blueprints.py\n')
bpfile.write('// DO NOT EDIT\n')
bpfile.write('\n')
bpfile.write('\n\n'.join(blueprints))
bpfile.write('\n\n')
bpfile.write('build = ["cpufeatures.bp", "stl.bp"]')
if __name__ == '__main__':
main()