| # Copyright 2017 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. |
| """Allows to use GNU ar as a static linker.""" |
| |
| from starboard.tools.toolchain import abstract |
| from starboard.tools.toolchain import common |
| |
| |
| class StaticLinkerBase(object): |
| """A base class for GNU ar-based static linkers.""" |
| |
| def __init__(self, **kwargs): |
| self._path = common.GetPath('ar', **kwargs) |
| self._extra_flags = kwargs.get('extra_flags', []) |
| |
| def GetPath(self): |
| return self._path |
| |
| def GetExtraFlags(self): |
| return self._extra_flags |
| |
| def GetMaxConcurrentProcesses(self): |
| # Run as much concurrent processes as possible. |
| return None |
| |
| def GetDescription(self): |
| return 'AR $out' |
| |
| def GetRspFilePath(self): |
| return '$out.rsp' |
| |
| def GetRspFileContent(self): |
| return '$in_newline' |
| |
| |
| class StaticLinker(StaticLinkerBase, abstract.StaticLinker): |
| """Creates self-contained archives using GNU ar.""" |
| |
| def __init__(self, **kwargs): |
| super(StaticLinker, self).__init__(**kwargs) |
| |
| def GetCommand(self, path, extra_flags, flags, shell): |
| del flags # Not used. |
| return shell.And('rm -f $out', |
| '{0} rcs {1} $out @$rspfile'.format(path, extra_flags)) |
| |
| |
| class StaticThinLinker(StaticLinkerBase, abstract.StaticThinLinker): |
| """Creates thin archives using GNU ar.""" |
| |
| def __init__(self, **kwargs): |
| super(StaticThinLinker, self).__init__(**kwargs) |
| |
| def GetCommand(self, path, extra_flags, flags, shell): |
| del flags # Not used. |
| return shell.And('rm -f $out', |
| '{0} rcsT {1} $out @$rspfile'.format(path, extra_flags)) |