linkers: move linkers.py into the linkers package

2 files changed, 1544 insertions, 0 deletions

diff --git a/mesonbuild/linkers/__init__.py b/mesonbuild/linkers/__init__.py
new file mode 100644
index 0000000..0d6fbc1
--- /dev/null
+++ b/mesonbuild/linkers/__init__.py
@@ -0,0 +1,115 @@
+# Copyright 2012-2021 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.
+
+from .linkers import (
+    RSPFileSyntax,
+
+    StaticLinker,
+    VisualStudioLikeLinker,
+    VisualStudioLinker,
+    IntelVisualStudioLinker,
+    ArLinker,
+    ArmarLinker,
+    DLinker,
+    CcrxLinker,
+    Xc16Linker,
+    CompCertLinker,
+    C2000Linker,
+    AIXArLinker,
+    PGIStaticLinker,
+    NvidiaHPC_StaticLinker,
+
+    DynamicLinker,
+    PosixDynamicLinkerMixin,
+    GnuLikeDynamicLinkerMixin,
+    AppleDynamicLinker,
+    GnuDynamicLinker,
+    GnuGoldDynamicLinker,
+    GnuBFDDynamicLinker,
+    LLVMDynamicLinker,
+    WASMDynamicLinker,
+    CcrxDynamicLinker,
+    Xc16DynamicLinker,
+    CompCertDynamicLinker,
+    C2000DynamicLinker,
+    ArmDynamicLinker,
+    ArmClangDynamicLinker,
+    QualcommLLVMDynamicLinker,
+    PGIDynamicLinker,
+    NvidiaHPC_DynamicLinker,
+
+    VisualStudioLikeLinkerMixin,
+    MSVCDynamicLinker,
+    ClangClDynamicLinker,
+    XilinkDynamicLinker,
+    SolarisDynamicLinker,
+    AIXDynamicLinker,
+    OptlinkDynamicLinker,
+    CudaLinker,
+
+    prepare_rpaths,
+    order_rpaths,
+    evaluate_rpath,
+)
+
+__all__ = [
+    'RSPFileSyntax',
+
+    'StaticLinker',
+    'VisualStudioLikeLinker',
+    'VisualStudioLinker',
+    'IntelVisualStudioLinker',
+    'ArLinker',
+    'ArmarLinker',
+    'DLinker',
+    'CcrxLinker',
+    'Xc16Linker',
+    'CompCertLinker',
+    'C2000Linker',
+    'AIXArLinker',
+    'PGIStaticLinker',
+    'NvidiaHPC_StaticLinker',
+
+    'DynamicLinker',
+    'PosixDynamicLinkerMixin',
+    'GnuLikeDynamicLinkerMixin',
+    'AppleDynamicLinker',
+    'GnuDynamicLinker',
+    'GnuGoldDynamicLinker',
+    'GnuBFDDynamicLinker',
+    'LLVMDynamicLinker',
+    'WASMDynamicLinker',
+    'CcrxDynamicLinker',
+    'Xc16DynamicLinker',
+    'CompCertDynamicLinker',
+    'C2000DynamicLinker',
+    'ArmDynamicLinker',
+    'ArmClangDynamicLinker',
+    'QualcommLLVMDynamicLinker',
+    'PGIDynamicLinker',
+    'NvidiaHPC_DynamicLinker',
+
+    'VisualStudioLikeLinkerMixin',
+    'MSVCDynamicLinker',
+    'ClangClDynamicLinker',
+    'XilinkDynamicLinker',
+    'SolarisDynamicLinker',
+    'AIXDynamicLinker',
+    'OptlinkDynamicLinker',
+    'CudaLinker',
+
+    'prepare_rpaths',
+    'order_rpaths',
+    'evaluate_rpath',
+]
diff --git a/mesonbuild/linkers/linkers.py b/mesonbuild/linkers/linkers.py
new file mode 100644
index 0000000..6ebdbcb
--- /dev/null
+++ b/mesonbuild/linkers/linkers.py
@@ -0,0 +1,1429 @@
+# Copyright 2012-2017 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.
+
+import abc
+import enum
+import os
+import typing as T
+
+from .. import mesonlib
+from ..arglist import CompilerArgs
+
+if T.TYPE_CHECKING:
+    from ..coredata import KeyedOptionDictType
+    from ..environment import Environment
+    from ..mesonlib import MachineChoice
+
+
+@enum.unique
+class RSPFileSyntax(enum.Enum):
+
+    """Which RSP file syntax the compiler supports."""
+
+    MSVC = enum.auto()
+    GCC = enum.auto()
+
+
+class StaticLinker:
+
+    id: str
+
+    def __init__(self, exelist: T.List[str]):
+        self.exelist = exelist
+
+    def compiler_args(self, args: T.Optional[T.Iterable[str]] = None) -> CompilerArgs:
+        return CompilerArgs(self, args)
+
+    def can_linker_accept_rsp(self) -> bool:
+        """
+        Determines whether the linker can accept arguments using the @rsp syntax.
+        """
+        return mesonlib.is_windows()
+
+    def get_base_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        """Like compilers.get_base_link_args, but for the static linker."""
+        return []
+
+    def get_exelist(self) -> T.List[str]:
+        return self.exelist.copy()
+
+    def get_std_link_args(self) -> T.List[str]:
+        return []
+
+    def get_buildtype_linker_args(self, buildtype: str) -> T.List[str]:
+        return []
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return[]
+
+    def get_coverage_link_args(self) -> T.List[str]:
+        return []
+
+    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 thread_link_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def openmp_flags(self) -> T.List[str]:
+        return []
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+    @classmethod
+    def unix_args_to_native(cls, args: T.List[str]) -> T.List[str]:
+        return args[:]
+
+    @classmethod
+    def native_args_to_unix(cls, args: T.List[str]) -> T.List[str]:
+        return args[:]
+
+    def get_link_debugfile_name(self, targetfile: str) -> str:
+        return None
+
+    def get_link_debugfile_args(self, targetfile: str) -> T.List[str]:
+        # Static libraries do not have PDB files
+        return []
+
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def get_linker_always_args(self) -> T.List[str]:
+        return []
+
+    def rsp_file_syntax(self) -> RSPFileSyntax:
+        """The format of the RSP file that this compiler supports.
+
+        If `self.can_linker_accept_rsp()` returns True, then this needs to
+        be implemented
+        """
+        assert not self.can_linker_accept_rsp(), f'{self.id} linker accepts RSP, but doesn\' provide a supported format, this is a bug'
+        raise mesonlib.EnvironmentException(f'{self.id} does not implemnt rsp format, this shouldn\'t be called')
+
+
+class VisualStudioLikeLinker:
+    always_args = ['/NOLOGO']
+
+    def __init__(self, machine: str):
+        self.machine = machine
+
+    def get_always_args(self) -> T.List[str]:
+        return self.always_args.copy()
+
+    def get_linker_always_args(self) -> T.List[str]:
+        return self.always_args.copy()
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        args = []  # type: T.List[str]
+        if self.machine:
+            args += ['/MACHINE:' + self.machine]
+        args += ['/OUT:' + target]
+        return args
+
+    @classmethod
+    def unix_args_to_native(cls, args: T.List[str]) -> T.List[str]:
+        from ..compilers import VisualStudioCCompiler
+        return VisualStudioCCompiler.unix_args_to_native(args)
+
+    @classmethod
+    def native_args_to_unix(cls, args: T.List[str]) -> T.List[str]:
+        from ..compilers import VisualStudioCCompiler
+        return VisualStudioCCompiler.native_args_to_unix(args)
+
+    def rsp_file_syntax(self) -> RSPFileSyntax:
+        return RSPFileSyntax.MSVC
+
+
+class VisualStudioLinker(VisualStudioLikeLinker, StaticLinker):
+
+    """Microsoft's lib static linker."""
+
+    def __init__(self, exelist: T.List[str], machine: str):
+        StaticLinker.__init__(self, exelist)
+        VisualStudioLikeLinker.__init__(self, machine)
+
+
+class IntelVisualStudioLinker(VisualStudioLikeLinker, StaticLinker):
+
+    """Intel's xilib static linker."""
+
+    def __init__(self, exelist: T.List[str], machine: str):
+        StaticLinker.__init__(self, exelist)
+        VisualStudioLikeLinker.__init__(self, machine)
+
+
+class ArLinker(StaticLinker):
+
+    def __init__(self, exelist: T.List[str]):
+        super().__init__(exelist)
+        self.id = 'ar'
+        pc, stdo = mesonlib.Popen_safe(self.exelist + ['-h'])[0:2]
+        # Enable deterministic builds if they are available.
+        if '[D]' in stdo:
+            self.std_args = ['csrD']
+        else:
+            self.std_args = ['csr']
+        self.can_rsp = '@<' in stdo
+
+    def can_linker_accept_rsp(self) -> bool:
+        return self.can_rsp
+
+    def get_std_link_args(self) -> T.List[str]:
+        return self.std_args
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [target]
+
+    def rsp_file_syntax(self) -> RSPFileSyntax:
+        return RSPFileSyntax.GCC
+
+
+class ArmarLinker(ArLinker):  # lgtm [py/missing-call-to-init]
+
+    def __init__(self, exelist: T.List[str]):
+        StaticLinker.__init__(self, exelist)
+        self.id = 'armar'
+        self.std_args = ['-csr']
+
+    def can_linker_accept_rsp(self) -> bool:
+        # armar can't accept arguments using the @rsp syntax
+        return False
+
+
+class DLinker(StaticLinker):
+    def __init__(self, exelist: T.List[str], arch: str, *, rsp_syntax: RSPFileSyntax = RSPFileSyntax.GCC):
+        super().__init__(exelist)
+        self.id = exelist[0]
+        self.arch = arch
+        self.__rsp_syntax = rsp_syntax
+
+    def get_std_link_args(self) -> T.List[str]:
+        return ['-lib']
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return ['-of=' + target]
+
+    def get_linker_always_args(self) -> T.List[str]:
+        if mesonlib.is_windows():
+            if self.arch == 'x86_64':
+                return ['-m64']
+            elif self.arch == 'x86_mscoff' and self.id == 'dmd':
+                return ['-m32mscoff']
+            return ['-m32']
+        return []
+
+    def rsp_file_syntax(self) -> RSPFileSyntax:
+        return self.__rsp_syntax
+
+
+class CcrxLinker(StaticLinker):
+
+    def __init__(self, exelist: T.List[str]):
+        super().__init__(exelist)
+        self.id = 'rlink'
+
+    def can_linker_accept_rsp(self) -> bool:
+        return False
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [f'-output={target}']
+
+    def get_linker_always_args(self) -> T.List[str]:
+        return ['-nologo', '-form=library']
+
+
+class Xc16Linker(StaticLinker):
+
+    def __init__(self, exelist: T.List[str]):
+        super().__init__(exelist)
+        self.id = 'xc16-ar'
+
+    def can_linker_accept_rsp(self) -> bool:
+        return False
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [f'{target}']
+
+    def get_linker_always_args(self) -> T.List[str]:
+        return ['rcs']
+
+class CompCertLinker(StaticLinker):
+
+    def __init__(self, exelist: T.List[str]):
+        super().__init__(exelist)
+        self.id = 'ccomp'
+
+    def can_linker_accept_rsp(self) -> bool:
+        return False
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [f'-o{target}']
+
+
+class C2000Linker(StaticLinker):
+
+    def __init__(self, exelist: T.List[str]):
+        super().__init__(exelist)
+        self.id = 'ar2000'
+
+    def can_linker_accept_rsp(self) -> bool:
+        return False
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [f'{target}']
+
+    def get_linker_always_args(self) -> T.List[str]:
+        return ['-r']
+
+
+class AIXArLinker(ArLinker):
+
+    def __init__(self, exelist: T.List[str]):
+        StaticLinker.__init__(self, exelist)
+        self.id = 'aixar'
+        self.std_args = ['-csr', '-Xany']
+
+    def can_linker_accept_rsp(self) -> bool:
+        # AIXAr can't accept arguments using the @rsp syntax
+        return False
+
+
+def prepare_rpaths(raw_rpaths: str, build_dir: str, from_dir: str) -> T.List[str]:
+    # The rpaths we write must be relative if they point to the build dir,
+    # because otherwise they have different length depending on the build
+    # directory. This breaks reproducible builds.
+    internal_format_rpaths = [evaluate_rpath(p, build_dir, from_dir) for p in raw_rpaths]
+    ordered_rpaths = order_rpaths(internal_format_rpaths)
+    return ordered_rpaths
+
+
+def order_rpaths(rpath_list: T.List[str]) -> T.List[str]:
+    # We want rpaths that point inside our build dir to always override
+    # those pointing to other places in the file system. This is so built
+    # binaries prefer our libraries to the ones that may lie somewhere
+    # in the file system, such as /lib/x86_64-linux-gnu.
+    #
+    # The correct thing to do here would be C++'s std::stable_partition.
+    # Python standard library does not have it, so replicate it with
+    # sort, which is guaranteed to be stable.
+    return sorted(rpath_list, key=os.path.isabs)
+
+
+def evaluate_rpath(p: str, build_dir: str, from_dir: str) -> str:
+    if p == from_dir:
+        return '' # relpath errors out in this case
+    elif os.path.isabs(p):
+        return p # These can be outside of build dir.
+    else:
+        return os.path.relpath(os.path.join(build_dir, p), os.path.join(build_dir, from_dir))
+
+class DynamicLinker(metaclass=abc.ABCMeta):
+
+    """Base class for dynamic linkers."""
+
+    _BUILDTYPE_ARGS = {
+        'plain': [],
+        'debug': [],
+        'debugoptimized': [],
+        'release': [],
+        'minsize': [],
+        'custom': [],
+    }  # type: T.Dict[str, T.List[str]]
+
+    @abc.abstractproperty
+    def id(self) -> str:
+        pass
+
+    def _apply_prefix(self, arg: T.Union[str, T.List[str]]) -> T.List[str]:
+        args = [arg] if isinstance(arg, str) else arg
+        if self.prefix_arg is None:
+            return args
+        elif isinstance(self.prefix_arg, str):
+            return [self.prefix_arg + arg for arg in args]
+        ret = []
+        for arg in args:
+            ret += self.prefix_arg + [arg]
+        return ret
+
+    def __init__(self, exelist: T.List[str],
+                 for_machine: mesonlib.MachineChoice, prefix_arg: T.Union[str, T.List[str]],
+                 always_args: T.List[str], *, version: str = 'unknown version'):
+        self.exelist = exelist
+        self.for_machine = for_machine
+        self.version = version
+        self.prefix_arg = prefix_arg
+        self.always_args = always_args
+        self.machine = None  # type: T.Optional[str]
+
+    def __repr__(self) -> str:
+        return '<{}: v{} `{}`>'.format(type(self).__name__, self.version, ' '.join(self.exelist))
+
+    def get_id(self) -> str:
+        return self.id
+
+    def get_version_string(self) -> str:
+        return f'({self.id} {self.version})'
+
+    def get_exelist(self) -> T.List[str]:
+        return self.exelist.copy()
+
+    def get_accepts_rsp(self) -> bool:
+        # rsp files are only used when building on Windows because we want to
+        # avoid issues with quoting and max argument length
+        return mesonlib.is_windows()
+
+    def rsp_file_syntax(self) -> RSPFileSyntax:
+        """The format of the RSP file that this compiler supports.
+
+        If `self.can_linker_accept_rsp()` returns True, then this needs to
+        be implemented
+        """
+        return RSPFileSyntax.GCC
+
+    def get_always_args(self) -> T.List[str]:
+        return self.always_args.copy()
+
+    def get_lib_prefix(self) -> str:
+        return ''
+
+    # XXX: is use_ldflags a compiler or a linker attribute?
+
+    def get_option_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+    def has_multi_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        m = 'Language {} does not support has_multi_link_arguments.'
+        raise mesonlib.EnvironmentException(m.format(self.id))
+
+    def get_debugfile_name(self, targetfile: str) -> str:
+        '''Name of debug file written out (see below)'''
+        return None
+
+    def get_debugfile_args(self, targetfile: str) -> T.List[str]:
+        """Some compilers (MSVC) write debug into a separate file.
+
+        This method takes the target object path and returns a list of
+        commands to append to the linker invocation to control where that
+        file is written.
+        """
+        return []
+
+    def get_std_shared_lib_args(self) -> T.List[str]:
+        return []
+
+    def get_std_shared_module_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return self.get_std_shared_lib_args()
+
+    def get_pie_args(self) -> T.List[str]:
+        # TODO: this really needs to take a boolean and return the args to
+        # disable pie, otherwise it only acts to enable pie if pie *isn't* the
+        # default.
+        m = 'Linker {} does not support position-independent executable'
+        raise mesonlib.EnvironmentException(m.format(self.id))
+
+    def get_lto_args(self) -> T.List[str]:
+        return []
+
+    def sanitizer_args(self, value: str) -> T.List[str]:
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        # We can override these in children by just overriding the
+        # _BUILDTYPE_ARGS value.
+        return self._BUILDTYPE_ARGS[buildtype]
+
+    def get_asneeded_args(self) -> T.List[str]:
+        return []
+
+    def get_link_whole_for(self, args: T.List[str]) -> T.List[str]:
+        raise mesonlib.EnvironmentException(
+            f'Linker {self.id} does not support link_whole')
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        raise mesonlib.EnvironmentException(
+            f'Linker {self.id} does not support allow undefined')
+
+    @abc.abstractmethod
+    def get_output_args(self, outname: str) -> T.List[str]:
+        pass
+
+    def get_coverage_args(self) -> T.List[str]:
+        m = f"Linker {self.id} doesn't implement coverage data generation."
+        raise mesonlib.EnvironmentException(m)
+
+    @abc.abstractmethod
+    def get_search_args(self, dirname: str) -> T.List[str]:
+        pass
+
+    def export_dynamic_args(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def import_library_args(self, implibname: str) -> T.List[str]:
+        """The name of the outputted import library.
+
+        This implementation is used only on Windows by compilers that use GNU ld
+        """
+        return []
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def no_undefined_args(self) -> T.List[str]:
+        """Arguments to error if there are any undefined symbols at link time.
+
+        This is the inverse of get_allow_undefined_args().
+
+        TODO: A future cleanup might merge this and
+              get_allow_undefined_args() into a single method taking a
+              boolean
+        """
+        return []
+
+    def fatal_warnings(self) -> T.List[str]:
+        """Arguments to make all warnings errors."""
+        return []
+
+    def headerpad_args(self) -> T.List[str]:
+        # Only used by the Apple linker
+        return []
+
+    def get_gui_app_args(self, value: bool) -> T.List[str]:
+        # Only used by VisualStudioLikeLinkers
+        return []
+
+    def get_win_subsystem_args(self, value: str) -> T.List[str]:
+        # Only used if supported by the dynamic linker and
+        # only when targeting Windows
+        return []
+
+    def bitcode_args(self) -> T.List[str]:
+        raise mesonlib.MesonException('This linker does not support bitcode bundles')
+
+    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_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]:
+        return []
+
+
+class PosixDynamicLinkerMixin:
+
+    """Mixin class for POSIX-ish linkers.
+
+    This is obviously a pretty small subset of the linker interface, but
+    enough dynamic linkers that meson supports are POSIX-like but not
+    GNU-like that it makes sense to split this out.
+    """
+
+    def get_output_args(self, outname: str) -> T.List[str]:
+        return ['-o', outname]
+
+    def get_std_shared_lib_args(self) -> T.List[str]:
+        return ['-shared']
+
+    def get_search_args(self, dirname: str) -> T.List[str]:
+        return ['-L' + dirname]
+
+
+class GnuLikeDynamicLinkerMixin:
+
+    """Mixin class for dynamic linkers that provides gnu-like interface.
+
+    This acts as a base for the GNU linkers (bfd and gold), LLVM's lld, and
+    other linkers like GNU-ld.
+    """
+
+    if T.TYPE_CHECKING:
+        for_machine = MachineChoice.HOST
+        def _apply_prefix(self, arg: T.Union[str, T.List[str]]) -> T.List[str]: ...
+
+    _BUILDTYPE_ARGS = {
+        'plain': [],
+        'debug': [],
+        'debugoptimized': [],
+        'release': ['-O1'],
+        'minsize': [],
+        'custom': [],
+    }  # type: T.Dict[str, T.List[str]]
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        # We can override these in children by just overriding the
+        # _BUILDTYPE_ARGS value.
+        return mesonlib.listify([self._apply_prefix(a) for a in self._BUILDTYPE_ARGS[buildtype]])
+
+    def get_pie_args(self) -> T.List[str]:
+        return ['-pie']
+
+    def get_asneeded_args(self) -> T.List[str]:
+        return self._apply_prefix('--as-needed')
+
+    def get_link_whole_for(self, args: T.List[str]) -> T.List[str]:
+        if not args:
+            return args
+        return self._apply_prefix('--whole-archive') + args + self._apply_prefix('--no-whole-archive')
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return self._apply_prefix('--allow-shlib-undefined')
+
+    def get_lto_args(self) -> T.List[str]:
+        return ['-flto']
+
+    def sanitizer_args(self, value: str) -> T.List[str]:
+        if value == 'none':
+            return []
+        return ['-fsanitize=' + value]
+
+    def get_coverage_args(self) -> T.List[str]:
+        return ['--coverage']
+
+    def export_dynamic_args(self, env: 'Environment') -> T.List[str]:
+        m = env.machines[self.for_machine]
+        if m.is_windows() or m.is_cygwin():
+            return self._apply_prefix('--export-all-symbols')
+        return self._apply_prefix('-export-dynamic')
+
+    def import_library_args(self, implibname: str) -> T.List[str]:
+        return self._apply_prefix('--out-implib=' + implibname)
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        if env.machines[self.for_machine].is_haiku():
+            return []
+        return ['-pthread']
+
+    def no_undefined_args(self) -> T.List[str]:
+        return self._apply_prefix('--no-undefined')
+
+    def fatal_warnings(self) -> T.List[str]:
+        return self._apply_prefix('--fatal-warnings')
+
+    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]:
+        m = env.machines[self.for_machine]
+        if m.is_windows() or m.is_cygwin():
+            # For PE/COFF the soname argument has no effect
+            return []
+        sostr = '' if soversion is None else '.' + soversion
+        return self._apply_prefix(f'-soname,{prefix}{shlib_name}.{suffix}{sostr}')
+
+    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]]:
+        m = env.machines[self.for_machine]
+        if m.is_windows() or m.is_cygwin():
+            return ([], set())
+        if not rpath_paths and not install_rpath and not build_rpath:
+            return ([], set())
+        args = []
+        origin_placeholder = '$ORIGIN'
+        processed_rpaths = prepare_rpaths(rpath_paths, build_dir, from_dir)
+        # Need to deduplicate rpaths, as macOS's install_name_tool
+        # is *very* allergic to duplicate -delete_rpath arguments
+        # when calling depfixer on installation.
+        all_paths = mesonlib.OrderedSet([os.path.join(origin_placeholder, p) for p in processed_rpaths])
+        rpath_dirs_to_remove = set()
+        for p in all_paths:
+            rpath_dirs_to_remove.add(p.encode('utf8'))
+        # Build_rpath is used as-is (it is usually absolute).
+        if build_rpath != '':
+            all_paths.add(build_rpath)
+            for p in build_rpath.split(':'):
+                rpath_dirs_to_remove.add(p.encode('utf8'))
+
+        # TODO: should this actually be "for (dragonfly|open)bsd"?
+        if mesonlib.is_dragonflybsd() or mesonlib.is_openbsd():
+            # This argument instructs the compiler to record the value of
+            # ORIGIN in the .dynamic section of the elf. On Linux this is done
+            # by default, but is not on dragonfly/openbsd for some reason. Without this
+            # $ORIGIN in the runtime path will be undefined and any binaries
+            # linked against local libraries will fail to resolve them.
+            args.extend(self._apply_prefix('-z,origin'))
+
+        # In order to avoid relinking for RPATH removal, the binary needs to contain just
+        # enough space in the ELF header to hold the final installation RPATH.
+        paths = ':'.join(all_paths)
+        if len(paths) < len(install_rpath):
+            padding = 'X' * (len(install_rpath) - len(paths))
+            if not paths:
+                paths = padding
+            else:
+                paths = paths + ':' + padding
+        args.extend(self._apply_prefix('-rpath,' + paths))
+
+        # TODO: should this actually be "for solaris/sunos"?
+        if mesonlib.is_sunos():
+            return (args, rpath_dirs_to_remove)
+
+        # Rpaths to use while linking must be absolute. These are not
+        # written to the binary. Needed only with GNU ld:
+        # https://sourceware.org/bugzilla/show_bug.cgi?id=16936
+        # Not needed on Windows or other platforms that don't use RPATH
+        # https://github.com/mesonbuild/meson/issues/1897
+        #
+        # In addition, this linker option tends to be quite long and some
+        # compilers have trouble dealing with it. That's why we will include
+        # one option per folder, like this:
+        #
+        #   -Wl,-rpath-link,/path/to/folder1 -Wl,-rpath,/path/to/folder2 ...
+        #
+        # ...instead of just one single looooong option, like this:
+        #
+        #   -Wl,-rpath-link,/path/to/folder1:/path/to/folder2:...
+        for p in rpath_paths:
+            args.extend(self._apply_prefix('-rpath-link,' + os.path.join(build_dir, p)))
+
+        return (args, rpath_dirs_to_remove)
+
+    def get_win_subsystem_args(self, value: str) -> T.List[str]:
+        if 'windows' in value:
+            args = ['--subsystem,windows']
+        elif 'console' in value:
+            args = ['--subsystem,console']
+        else:
+            raise mesonlib.MesonException(f'Only "windows" and "console" are supported for win_subsystem with MinGW, not "{value}".')
+        if ',' in value:
+            args[-1] = args[-1] + ':' + value.split(',')[1]
+
+        return self._apply_prefix(args)
+
+
+class AppleDynamicLinker(PosixDynamicLinkerMixin, DynamicLinker):
+
+    """Apple's ld implementation."""
+
+    id = 'ld64'
+
+    def get_asneeded_args(self) -> T.List[str]:
+        return self._apply_prefix('-dead_strip_dylibs')
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return self._apply_prefix('-undefined,dynamic_lookup')
+
+    def get_std_shared_module_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return ['-bundle'] + self._apply_prefix('-undefined,dynamic_lookup')
+
+    def get_pie_args(self) -> T.List[str]:
+        return []
+
+    def get_link_whole_for(self, args: T.List[str]) -> T.List[str]:
+        result = []  # type: T.List[str]
+        for a in args:
+            result.extend(self._apply_prefix('-force_load'))
+            result.append(a)
+        return result
+
+    def get_coverage_args(self) -> T.List[str]:
+        return ['--coverage']
+
+    def sanitizer_args(self, value: str) -> T.List[str]:
+        if value == 'none':
+            return []
+        return ['-fsanitize=' + value]
+
+    def no_undefined_args(self) -> T.List[str]:
+        return self._apply_prefix('-undefined,error')
+
+    def headerpad_args(self) -> T.List[str]:
+        return self._apply_prefix('-headerpad_max_install_names')
+
+    def bitcode_args(self) -> T.List[str]:
+        return self._apply_prefix('-bitcode_bundle')
+
+    def fatal_warnings(self) -> T.List[str]:
+        return self._apply_prefix('-fatal_warnings')
+
+    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]:
+        if is_shared_module:
+            return []
+        install_name = ['@rpath/', prefix, shlib_name]
+        if soversion is not None:
+            install_name.append('.' + soversion)
+        install_name.append('.dylib')
+        args = ['-install_name', ''.join(install_name)]
+        if darwin_versions:
+            args.extend(['-compatibility_version', darwin_versions[0],
+                         '-current_version', darwin_versions[1]])
+        return 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]]:
+        if not rpath_paths and not install_rpath and not build_rpath:
+            return ([], set())
+        args = []
+        # @loader_path is the equivalent of $ORIGIN on macOS
+        # https://stackoverflow.com/q/26280738
+        origin_placeholder = '@loader_path'
+        processed_rpaths = prepare_rpaths(rpath_paths, build_dir, from_dir)
+        all_paths = mesonlib.OrderedSet([os.path.join(origin_placeholder, p) for p in processed_rpaths])
+        if build_rpath != '':
+            all_paths.add(build_rpath)
+        for rp in all_paths:
+            args.extend(self._apply_prefix('-rpath,' + rp))
+
+        return (args, set())
+
+
+class GnuDynamicLinker(GnuLikeDynamicLinkerMixin, PosixDynamicLinkerMixin, DynamicLinker):
+
+    """Representation of GNU ld.bfd and ld.gold."""
+
+    def get_accepts_rsp(self) -> bool:
+        return True
+
+
+class GnuGoldDynamicLinker(GnuDynamicLinker):
+
+    id = 'ld.gold'
+
+
+class GnuBFDDynamicLinker(GnuDynamicLinker):
+
+    id = 'ld.bfd'
+
+
+class LLVMDynamicLinker(GnuLikeDynamicLinkerMixin, PosixDynamicLinkerMixin, DynamicLinker):
+
+    """Representation of LLVM's ld.lld linker.
+
+    This is only the gnu-like linker, not the apple like or link.exe like
+    linkers.
+    """
+
+    id = 'ld.lld'
+
+    def __init__(self, exelist: T.List[str],
+                 for_machine: mesonlib.MachineChoice, prefix_arg: T.Union[str, T.List[str]],
+                 always_args: T.List[str], *, version: str = 'unknown version'):
+        super().__init__(exelist, for_machine, prefix_arg, always_args, version=version)
+
+        # Some targets don't seem to support this argument (windows, wasm, ...)
+        _, _, e = mesonlib.Popen_safe(self.exelist + self._apply_prefix('--allow-shlib-undefined'))
+        self.has_allow_shlib_undefined = not ('unknown argument: --allow-shlib-undefined' in e)
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        if self.has_allow_shlib_undefined:
+            return self._apply_prefix('--allow-shlib-undefined')
+        return []
+
+
+class WASMDynamicLinker(GnuLikeDynamicLinkerMixin, PosixDynamicLinkerMixin, DynamicLinker):
+
+    """Emscripten's wasm-ld."""
+
+    id = 'ld.wasm'
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return ['-s', 'ERROR_ON_UNDEFINED_SYMBOLS=0']
+
+    def no_undefined_args(self) -> T.List[str]:
+        return ['-s', 'ERROR_ON_UNDEFINED_SYMBOLS=1']
+
+    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 mesonlib.MesonException(f'{self.id} does not support shared libraries.')
+
+    def get_asneeded_args(self) -> T.List[str]:
+        return []
+
+    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())
+
+
+class CcrxDynamicLinker(DynamicLinker):
+
+    """Linker for Renesis CCrx compiler."""
+
+    id = 'rlink'
+
+    def __init__(self, for_machine: mesonlib.MachineChoice,
+                 *, version: str = 'unknown version'):
+        super().__init__(['rlink.exe'], for_machine, '', [],
+                         version=version)
+
+    def get_accepts_rsp(self) -> bool:
+        return False
+
+    def get_lib_prefix(self) -> str:
+        return '-lib='
+
+    def get_std_shared_lib_args(self) -> T.List[str]:
+        return []
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return [f'-output={outputname}']
+
+    def get_search_args(self, dirname: str) -> 'T.NoReturn':
+        raise OSError('rlink.exe does not have a search dir argument')
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return []
+
+    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]:
+        return []
+
+
+class Xc16DynamicLinker(DynamicLinker):
+
+    """Linker for Microchip XC16 compiler."""
+
+    id = 'xc16-gcc'
+
+    def __init__(self, for_machine: mesonlib.MachineChoice,
+                 *, version: str = 'unknown version'):
+        super().__init__(['xc16-gcc.exe'], for_machine, '', [],
+                         version=version)
+
+    def get_link_whole_for(self, args: T.List[str]) -> T.List[str]:
+        if not args:
+            return args
+        return self._apply_prefix('--start-group') + args + self._apply_prefix('--end-group')
+
+    def get_accepts_rsp(self) -> bool:
+        return False
+
+    def get_lib_prefix(self) -> str:
+        return ''
+
+    def get_std_shared_lib_args(self) -> T.List[str]:
+        return []
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return [f'-o{outputname}']
+
+    def get_search_args(self, dirname: str) -> 'T.NoReturn':
+        raise OSError('xc16-gcc.exe does not have a search dir argument')
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return []
+
+    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]:
+        return []
+
+    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())
+
+class CompCertDynamicLinker(DynamicLinker):
+
+    """Linker for CompCert C compiler."""
+
+    id = 'ccomp'
+
+    def __init__(self, for_machine: mesonlib.MachineChoice,
+                 *, version: str = 'unknown version'):
+        super().__init__(['ccomp'], for_machine, '', [],
+                         version=version)
+
+    def get_link_whole_for(self, args: T.List[str]) -> T.List[str]:
+        if not args:
+            return args
+        return self._apply_prefix('-Wl,--whole-archive') + args + self._apply_prefix('-Wl,--no-whole-archive')
+
+    def get_accepts_rsp(self) -> bool:
+        return False
+
+    def get_lib_prefix(self) -> str:
+        return ''
+
+    def get_std_shared_lib_args(self) -> T.List[str]:
+        return []
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return [f'-o{outputname}']
+
+    def get_search_args(self, dirname: str) -> T.List[str]:
+        return [f'-L{dirname}']
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return []
+
+    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 mesonlib.MesonException(f'{self.id} does not support shared libraries.')
+
+    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())
+
+class C2000DynamicLinker(DynamicLinker):
+
+    """Linker for Texas Instruments C2000 compiler."""
+
+    id = 'cl2000'
+
+    def __init__(self, for_machine: mesonlib.MachineChoice,
+                 *, version: str = 'unknown version'):
+        super().__init__(['cl2000.exe'], for_machine, '', [],
+                         version=version)
+
+    def get_link_whole_for(self, args: T.List[str]) -> T.List[str]:
+        if not args:
+            return args
+        return self._apply_prefix('--start-group') + args + self._apply_prefix('--end-group')
+
+    def get_accepts_rsp(self) -> bool:
+        return False
+
+    def get_lib_prefix(self) -> str:
+        return '-l='
+
+    def get_std_shared_lib_args(self) -> T.List[str]:
+        return []
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return ['-z', f'--output_file={outputname}']
+
+    def get_search_args(self, dirname: str) -> 'T.NoReturn':
+        raise OSError('cl2000.exe does not have a search dir argument')
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return []
+
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+
+class ArmDynamicLinker(PosixDynamicLinkerMixin, DynamicLinker):
+
+    """Linker for the ARM compiler."""
+
+    id = 'armlink'
+
+    def __init__(self, for_machine: mesonlib.MachineChoice,
+                 *, version: str = 'unknown version'):
+        super().__init__(['armlink'], for_machine, '', [],
+                         version=version)
+
+    def get_accepts_rsp(self) -> bool:
+        return False
+
+    def get_std_shared_lib_args(self) -> 'T.NoReturn':
+        raise mesonlib.MesonException('The Arm Linkers do not support shared libraries')
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return []
+
+
+class ArmClangDynamicLinker(ArmDynamicLinker):
+
+    """Linker used with ARM's clang fork.
+
+    The interface is similar enough to the old ARM ld that it inherits and
+    extends a few things as needed.
+    """
+
+    def export_dynamic_args(self, env: 'Environment') -> T.List[str]:
+        return ['--export_dynamic']
+
+    def import_library_args(self, implibname: str) -> T.List[str]:
+        return ['--symdefs=' + implibname]
+
+class QualcommLLVMDynamicLinker(LLVMDynamicLinker):
+
+    """ARM Linker from Snapdragon LLVM ARM Compiler."""
+
+    id = 'ld.qcld'
+
+
+class PGIDynamicLinker(PosixDynamicLinkerMixin, DynamicLinker):
+
+    """PGI linker."""
+
+    id = 'pgi'
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return []
+
+    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]:
+        return []
+
+    def get_std_shared_lib_args(self) -> T.List[str]:
+        # PGI -shared is Linux only.
+        if mesonlib.is_windows():
+            return ['-Bdynamic', '-Mmakedll']
+        elif mesonlib.is_linux():
+            return ['-shared']
+        return []
+
+    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]]:
+        if not env.machines[self.for_machine].is_windows():
+            return (['-R' + os.path.join(build_dir, p) for p in rpath_paths], set())
+        return ([], set())
+
+NvidiaHPC_DynamicLinker = PGIDynamicLinker
+
+
+class PGIStaticLinker(StaticLinker):
+    def __init__(self, exelist: T.List[str]):
+        super().__init__(exelist)
+        self.id = 'ar'
+        self.std_args = ['-r']
+
+    def get_std_link_args(self) -> T.List[str]:
+        return self.std_args
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [target]
+
+NvidiaHPC_StaticLinker = PGIStaticLinker
+
+
+class VisualStudioLikeLinkerMixin:
+
+    """Mixin class for for dynamic linkers that act like Microsoft's link.exe."""
+
+    if T.TYPE_CHECKING:
+        for_machine = MachineChoice.HOST
+        def _apply_prefix(self, arg: T.Union[str, T.List[str]]) -> T.List[str]: ...
+
+    _BUILDTYPE_ARGS = {
+        'plain': [],
+        'debug': [],
+        'debugoptimized': [],
+        # The otherwise implicit REF and ICF linker optimisations are disabled by
+        # /DEBUG. REF implies ICF.
+        'release': ['/OPT:REF'],
+        'minsize': ['/INCREMENTAL:NO', '/OPT:REF'],
+        'custom': [],
+    }  # type: T.Dict[str, T.List[str]]
+
+    def __init__(self, exelist: T.List[str], for_machine: mesonlib.MachineChoice,
+                 prefix_arg: T.Union[str, T.List[str]], always_args: T.List[str], *,
+                 version: str = 'unknown version', direct: bool = True, machine: str = 'x86'):
+        # There's no way I can find to make mypy understand what's going on here
+        super().__init__(exelist, for_machine, prefix_arg, always_args, version=version)  # type: ignore
+        self.machine = machine
+        self.direct = direct
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return mesonlib.listify([self._apply_prefix(a) for a in self._BUILDTYPE_ARGS[buildtype]])
+
+    def invoked_by_compiler(self) -> bool:
+        return not self.direct
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return self._apply_prefix(['/MACHINE:' + self.machine, '/OUT:' + outputname])
+
+    def get_always_args(self) -> T.List[str]:
+        parent = super().get_always_args() # type: ignore
+        return self._apply_prefix('/nologo') + T.cast(T.List[str], parent)
+
+    def get_search_args(self, dirname: str) -> T.List[str]:
+        return self._apply_prefix('/LIBPATH:' + dirname)
+
+    def get_std_shared_lib_args(self) -> T.List[str]:
+        return self._apply_prefix('/DLL')
+
+    def get_debugfile_name(self, targetfile: str) -> str:
+        basename = targetfile.rsplit('.', maxsplit=1)[0]
+        return basename + '.pdb'
+
+    def get_debugfile_args(self, targetfile: str) -> T.List[str]:
+        return self._apply_prefix(['/DEBUG', '/PDB:' + self.get_debugfile_name(targetfile)])
+
+    def get_link_whole_for(self, args: T.List[str]) -> T.List[str]:
+        # Only since VS2015
+        args = mesonlib.listify(args)
+        l = []  # T.List[str]
+        for a in args:
+            l.extend(self._apply_prefix('/WHOLEARCHIVE:' + a))
+        return l
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return []
+
+    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]:
+        return []
+
+    def import_library_args(self, implibname: str) -> T.List[str]:
+        """The command to generate the import library."""
+        return self._apply_prefix(['/IMPLIB:' + implibname])
+
+    def rsp_file_syntax(self) -> RSPFileSyntax:
+        return RSPFileSyntax.MSVC
+
+
+class MSVCDynamicLinker(VisualStudioLikeLinkerMixin, DynamicLinker):
+
+    """Microsoft's Link.exe."""
+
+    id = 'link'
+
+    def __init__(self, for_machine: mesonlib.MachineChoice, always_args: T.List[str], *,
+                 exelist: T.Optional[T.List[str]] = None,
+                 prefix: T.Union[str, T.List[str]] = '',
+                 machine: str = 'x86', version: str = 'unknown version',
+                 direct: bool = True):
+        super().__init__(exelist or ['link.exe'], for_machine,
+                         prefix, always_args, machine=machine, version=version, direct=direct)
+
+    def get_always_args(self) -> T.List[str]:
+        return self._apply_prefix(['/nologo', '/release']) + super().get_always_args()
+
+    def get_gui_app_args(self, value: bool) -> T.List[str]:
+        return self.get_win_subsystem_args("windows" if value else "console")
+
+    def get_win_subsystem_args(self, value: str) -> T.List[str]:
+        return self._apply_prefix([f'/SUBSYSTEM:{value.upper()}'])
+
+
+class ClangClDynamicLinker(VisualStudioLikeLinkerMixin, DynamicLinker):
+
+    """Clang's lld-link.exe."""
+
+    id = 'lld-link'
+
+    def __init__(self, for_machine: mesonlib.MachineChoice, always_args: T.List[str], *,
+                 exelist: T.Optional[T.List[str]] = None,
+                 prefix: T.Union[str, T.List[str]] = '',
+                 machine: str = 'x86', version: str = 'unknown version',
+                 direct: bool = True):
+        super().__init__(exelist or ['lld-link.exe'], for_machine,
+                         prefix, always_args, machine=machine, version=version, direct=direct)
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        # If we're being driven indirectly by clang just skip /MACHINE
+        # as clang's target triple will handle the machine selection
+        if self.machine is None:
+            return self._apply_prefix([f"/OUT:{outputname}"])
+
+        return super().get_output_args(outputname)
+
+    def get_gui_app_args(self, value: bool) -> T.List[str]:
+        return self.get_win_subsystem_args("windows" if value else "console")
+
+    def get_win_subsystem_args(self, value: str) -> T.List[str]:
+        return self._apply_prefix([f'/SUBSYSTEM:{value.upper()}'])
+
+
+class XilinkDynamicLinker(VisualStudioLikeLinkerMixin, DynamicLinker):
+
+    """Intel's Xilink.exe."""
+
+    id = 'xilink'
+
+    def __init__(self, for_machine: mesonlib.MachineChoice, always_args: T.List[str], *,
+                 exelist: T.Optional[T.List[str]] = None,
+                 prefix: T.Union[str, T.List[str]] = '',
+                 machine: str = 'x86', version: str = 'unknown version',
+                 direct: bool = True):
+        super().__init__(['xilink.exe'], for_machine, '', always_args, version=version)
+
+
+class SolarisDynamicLinker(PosixDynamicLinkerMixin, DynamicLinker):
+
+    """Sys-V derived linker used on Solaris and OpenSolaris."""
+
+    id = 'ld.solaris'
+
+    def get_link_whole_for(self, args: T.List[str]) -> T.List[str]:
+        if not args:
+            return args
+        return self._apply_prefix('--whole-archive') + args + self._apply_prefix('--no-whole-archive')
+
+    def get_pie_args(self) -> T.List[str]:
+        # Available in Solaris 11.2 and later
+        pc, stdo, stde = mesonlib.Popen_safe(self.exelist + self._apply_prefix('-zhelp'))
+        for line in (stdo + stde).split('\n'):
+            if '-z type' in line:
+                if 'pie' in line:
+                    return ['-z', 'type=pie']
+                break
+        return []
+
+    def get_asneeded_args(self) -> T.List[str]:
+        return self._apply_prefix(['-z', 'ignore'])
+
+    def no_undefined_args(self) -> T.List[str]:
+        return ['-z', 'defs']
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return ['-z', 'nodefs']
+
+    def fatal_warnings(self) -> T.List[str]:
+        return ['-z', 'fatal-warnings']
+
+    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]]:
+        if not rpath_paths and not install_rpath and not build_rpath:
+            return ([], set())
+        processed_rpaths = prepare_rpaths(rpath_paths, build_dir, from_dir)
+        all_paths = mesonlib.OrderedSet([os.path.join('$ORIGIN', p) for p in processed_rpaths])
+        rpath_dirs_to_remove = set()
+        for p in all_paths:
+            rpath_dirs_to_remove.add(p.encode('utf8'))
+        if build_rpath != '':
+            all_paths.add(build_rpath)
+            for p in build_rpath.split(':'):
+                rpath_dirs_to_remove.add(p.encode('utf8'))
+
+        # In order to avoid relinking for RPATH removal, the binary needs to contain just
+        # enough space in the ELF header to hold the final installation RPATH.
+        paths = ':'.join(all_paths)
+        if len(paths) < len(install_rpath):
+            padding = 'X' * (len(install_rpath) - len(paths))
+            if not paths:
+                paths = padding
+            else:
+                paths = paths + ':' + padding
+        return (self._apply_prefix(f'-rpath,{paths}'), rpath_dirs_to_remove)
+
+    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]:
+        sostr = '' if soversion is None else '.' + soversion
+        return self._apply_prefix(f'-soname,{prefix}{shlib_name}.{suffix}{sostr}')
+
+
+class AIXDynamicLinker(PosixDynamicLinkerMixin, DynamicLinker):
+
+    """Sys-V derived linker used on AIX"""
+
+    id = 'ld.aix'
+
+    def get_always_args(self) -> T.List[str]:
+        return self._apply_prefix(['-bnoipath', '-bbigtoc']) + super().get_always_args()
+
+    def no_undefined_args(self) -> T.List[str]:
+        return self._apply_prefix(['-bernotok'])
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return self._apply_prefix(['-berok'])
+
+    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]]:
+        all_paths = mesonlib.OrderedSet() # type: mesonlib.OrderedSet[str]
+        # install_rpath first, followed by other paths, and the system path last
+        if install_rpath != '':
+            all_paths.add(install_rpath)
+        if build_rpath != '':
+            all_paths.add(build_rpath)
+        for p in rpath_paths:
+            all_paths.add(os.path.join(build_dir, p))
+        # We should consider allowing the $LIBPATH environment variable
+        # to override sys_path.
+        sys_path = env.get_compiler_system_dirs(self.for_machine)
+        if len(sys_path) == 0:
+            # get_compiler_system_dirs doesn't support our compiler.
+            # Use the default system library path
+            all_paths.update(['/usr/lib','/lib'])
+        else:
+            # Include the compiler's default library paths, but filter out paths that don't exist
+            for p in sys_path:
+                if os.path.isdir(p):
+                    all_paths.add(p)
+        return (self._apply_prefix('-blibpath:' + ':'.join(all_paths)), set())
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return ['-pthread']
+
+
+class OptlinkDynamicLinker(VisualStudioLikeLinkerMixin, DynamicLinker):
+
+    """Digital Mars dynamic linker for windows."""
+
+    id = 'optlink'
+
+    def __init__(self, exelist: T.List[str], for_machine: mesonlib.MachineChoice,
+                 *, version: str = 'unknown version'):
+        # Use optlink instead of link so we don't interfer with other link.exe
+        # implementations.
+        super().__init__(exelist, for_machine, '', [], version=version)
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return []
+
+    def get_debugfile_args(self, targetfile: str) -> T.List[str]:
+        # Optlink does not generate pdb files.
+        return []
+
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+
+class CudaLinker(PosixDynamicLinkerMixin, DynamicLinker):
+    """Cuda linker (nvlink)"""
+
+    id = 'nvlink'
+
+    @staticmethod
+    def parse_version() -> str:
+        version_cmd = ['nvlink', '--version']
+        try:
+            _, out, _ = mesonlib.Popen_safe(version_cmd)
+        except OSError:
+            return 'unknown version'
+        # Output example:
+        # nvlink: NVIDIA (R) Cuda linker
+        # Copyright (c) 2005-2018 NVIDIA Corporation
+        # Built on Sun_Sep_30_21:09:22_CDT_2018
+        # Cuda compilation tools, release 10.0, V10.0.166
+        # we need the most verbose version output. Luckily starting with V
+        return out.strip().split('V')[-1]
+
+    def get_accepts_rsp(self) -> bool:
+        # nvcc does not support response files
+        return False
+
+    def get_lib_prefix(self) -> str:
+        if not mesonlib.is_windows():
+            return ''
+        # nvcc doesn't recognize Meson's default .a extension for static libraries on
+        # Windows and passes it to cl as an object file, resulting in 'warning D9024 :
+        # unrecognized source file type 'xxx.a', object file assumed'.
+        #
+        # nvcc's --library= option doesn't help: it takes the library name without the
+        # extension and assumes that the extension on Windows is .lib; prefixing the
+        # library with -Xlinker= seems to work.
+        from ..compilers import CudaCompiler
+        return CudaCompiler.LINKER_PREFIX
+
+    def fatal_warnings(self) -> T.List[str]:
+        return ['--warning-as-error']
+
+    def get_allow_undefined_args(self) -> T.List[str]:
+        return []
+
+    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]:
+        return []