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Diffstat (limited to 'meson/mesonbuild/compilers/mixins/islinker.py')
-rw-r--r-- | meson/mesonbuild/compilers/mixins/islinker.py | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/meson/mesonbuild/compilers/mixins/islinker.py b/meson/mesonbuild/compilers/mixins/islinker.py new file mode 100644 index 000000000..4c29f8c0d --- /dev/null +++ b/meson/mesonbuild/compilers/mixins/islinker.py @@ -0,0 +1,129 @@ +# Copyright 2019 The Meson development team +# +# 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. + +"""Mixins for compilers that *are* linkers. + +While many compilers (such as gcc and clang) are used by meson to dispatch +linker commands and other (like MSVC) are not, a few (such as DMD) actually +are both the linker and compiler in one binary. This module provides mixin +classes for those cases. +""" + +import typing as T + +from ...mesonlib import EnvironmentException, MesonException, is_windows + +if T.TYPE_CHECKING: + from ...coredata import KeyedOptionDictType + from ...environment import Environment + from ...compilers.compilers import Compiler +else: + # This is a bit clever, for mypy we pretend that these mixins descend from + # Compiler, so we get all of the methods and attributes defined for us, but + # for runtime we make them descend from object (which all classes normally + # do). This gives up DRYer type checking, with no runtime impact + Compiler = object + + +class BasicLinkerIsCompilerMixin(Compiler): + + """Provides a baseline of methods that a linker would implement. + + In every case this provides a "no" or "empty" answer. If a compiler + implements any of these it needs a different mixin or to override that + functionality itself. + """ + + def sanitizer_link_args(self, value: str) -> T.List[str]: + return [] + + def get_lto_link_args(self, *, threads: int = 0, mode: str = 'default') -> T.List[str]: + return [] + + def can_linker_accept_rsp(self) -> bool: + return is_windows() + + def get_linker_exelist(self) -> T.List[str]: + return self.exelist.copy() + + def get_linker_output_args(self, output: str) -> T.List[str]: + return [] + + def get_linker_always_args(self) -> T.List[str]: + return [] + + def get_linker_lib_prefix(self) -> str: + return '' + + def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]: + return [] + + def has_multi_link_args(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]: + return False, False + + def get_link_debugfile_args(self, targetfile: str) -> T.List[str]: + return [] + + def get_std_shared_lib_link_args(self) -> T.List[str]: + return [] + + def get_std_shared_module_args(self, options: 'KeyedOptionDictType') -> T.List[str]: + return self.get_std_shared_lib_link_args() + + def get_link_whole_for(self, args: T.List[str]) -> T.List[str]: + raise EnvironmentException(f'Linker {self.id} does not support link_whole') + + def get_allow_undefined_link_args(self) -> T.List[str]: + raise EnvironmentException(f'Linker {self.id} does not support allow undefined') + + def get_pie_link_args(self) -> T.List[str]: + raise EnvironmentException(f'Linker {self.id} does not support position-independent executable') + + def get_undefined_link_args(self) -> T.List[str]: + return [] + + def get_coverage_link_args(self) -> T.List[str]: + return [] + + def no_undefined_link_args(self) -> T.List[str]: + return [] + + def bitcode_args(self) -> T.List[str]: + raise MesonException("This linker doesn't support bitcode bundles") + + def get_soname_args(self, env: 'Environment', prefix: str, shlib_name: str, + suffix: str, soversion: str, + darwin_versions: T.Tuple[str, str], + is_shared_module: bool) -> T.List[str]: + raise MesonException("This linker doesn't support soname args") + + def build_rpath_args(self, env: 'Environment', build_dir: str, from_dir: str, + rpath_paths: str, build_rpath: str, + install_rpath: str) -> T.Tuple[T.List[str], T.Set[bytes]]: + return ([], set()) + + def get_asneeded_args(self) -> T.List[str]: + return [] + + def get_buildtype_linker_args(self, buildtype: str) -> T.List[str]: + return [] + + def get_link_debugfile_name(self, target: str) -> str: + return '' + + def thread_flags(self, env: 'Environment') -> T.List[str]: + return [] + + def thread_link_flags(self, env: 'Environment') -> T.List[str]: + return [] |