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