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1337 lines
52 KiB
1337 lines
52 KiB
# Copyright 2012-2019 The Meson development team |
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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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# http://www.apache.org/licenses/LICENSE-2.0 |
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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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import contextlib, os.path, re, tempfile |
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import collections.abc |
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from collections import deque |
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import itertools |
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import typing as T |
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from functools import lru_cache |
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from ..linkers import ( |
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GnuLikeDynamicLinkerMixin, LinkerEnvVarsMixin, SolarisDynamicLinker, |
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StaticLinker, |
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) |
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from .. import coredata |
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from .. import mlog |
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from .. import mesonlib |
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from ..mesonlib import ( |
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EnvironmentException, MachineChoice, MesonException, |
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Popen_safe, split_args |
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) |
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from ..envconfig import ( |
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Properties, get_env_var |
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) |
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if T.TYPE_CHECKING: |
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from ..coredata import OptionDictType |
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from ..envconfig import MachineInfo |
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from ..environment import Environment |
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from ..linkers import DynamicLinker # noqa: F401 |
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CompilerType = T.TypeVar('CompilerType', bound=Compiler) |
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"""This file contains the data files of all compilers Meson knows |
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about. To support a new compiler, add its information below. |
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Also add corresponding autodetection code in environment.py.""" |
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header_suffixes = ('h', 'hh', 'hpp', 'hxx', 'H', 'ipp', 'moc', 'vapi', 'di') |
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obj_suffixes = ('o', 'obj', 'res') |
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lib_suffixes = ('a', 'lib', 'dll', 'dll.a', 'dylib', 'so') |
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# Mapping of language to suffixes of files that should always be in that language |
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# This means we can't include .h headers here since they could be C, C++, ObjC, etc. |
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lang_suffixes = { |
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'c': ('c',), |
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'cpp': ('cpp', 'cc', 'cxx', 'c++', 'hh', 'hpp', 'ipp', 'hxx', 'ino'), |
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'cuda': ('cu',), |
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# f90, f95, f03, f08 are for free-form fortran ('f90' recommended) |
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# f, for, ftn, fpp are for fixed-form fortran ('f' or 'for' recommended) |
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'fortran': ('f90', 'f95', 'f03', 'f08', 'f', 'for', 'ftn', 'fpp'), |
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'd': ('d', 'di'), |
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'objc': ('m',), |
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'objcpp': ('mm',), |
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'rust': ('rs',), |
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'vala': ('vala', 'vapi', 'gs'), |
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'cs': ('cs',), |
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'swift': ('swift',), |
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'java': ('java',), |
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} |
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all_languages = lang_suffixes.keys() |
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cpp_suffixes = lang_suffixes['cpp'] + ('h',) |
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c_suffixes = lang_suffixes['c'] + ('h',) |
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# List of languages that by default consume and output libraries following the |
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# C ABI; these can generally be used interchangebly |
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clib_langs = ('objcpp', 'cpp', 'objc', 'c', 'fortran',) |
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# List of languages that can be linked with C code directly by the linker |
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# used in build.py:process_compilers() and build.py:get_dynamic_linker() |
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clink_langs = ('d', 'cuda') + clib_langs |
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clink_suffixes = () |
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for _l in clink_langs + ('vala',): |
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clink_suffixes += lang_suffixes[_l] |
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clink_suffixes += ('h', 'll', 's') |
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all_suffixes = set(itertools.chain(*lang_suffixes.values(), clink_suffixes)) |
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# Languages that should use LDFLAGS arguments when linking. |
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languages_using_ldflags = {'objcpp', 'cpp', 'objc', 'c', 'fortran', 'd', 'cuda'} |
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# Languages that should use CPPFLAGS arguments when linking. |
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languages_using_cppflags = {'c', 'cpp', 'objc', 'objcpp'} |
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soregex = re.compile(r'.*\.so(\.[0-9]+)?(\.[0-9]+)?(\.[0-9]+)?$') |
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# Environment variables that each lang uses. |
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cflags_mapping = {'c': 'CFLAGS', |
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'cpp': 'CXXFLAGS', |
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'cuda': 'CUFLAGS', |
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'objc': 'OBJCFLAGS', |
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'objcpp': 'OBJCXXFLAGS', |
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'fortran': 'FFLAGS', |
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'd': 'DFLAGS', |
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'vala': 'VALAFLAGS', |
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'rust': 'RUSTFLAGS'} |
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unixy_compiler_internal_libs = ('m', 'c', 'pthread', 'dl', 'rt') |
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# execinfo is a compiler lib on FreeBSD and NetBSD |
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if mesonlib.is_freebsd() or mesonlib.is_netbsd(): |
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unixy_compiler_internal_libs += ('execinfo',) |
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# All these are only for C-linkable languages; see `clink_langs` above. |
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def sort_clink(lang): |
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''' |
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Sorting function to sort the list of languages according to |
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reversed(compilers.clink_langs) and append the unknown langs in the end. |
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The purpose is to prefer C over C++ for files that can be compiled by |
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both such as assembly, C, etc. Also applies to ObjC, ObjC++, etc. |
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''' |
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if lang not in clink_langs: |
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return 1 |
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return -clink_langs.index(lang) |
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def is_header(fname): |
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if hasattr(fname, 'fname'): |
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fname = fname.fname |
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suffix = fname.split('.')[-1] |
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return suffix in header_suffixes |
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def is_source(fname): |
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if hasattr(fname, 'fname'): |
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fname = fname.fname |
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suffix = fname.split('.')[-1].lower() |
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return suffix in clink_suffixes |
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def is_assembly(fname): |
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if hasattr(fname, 'fname'): |
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fname = fname.fname |
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return fname.split('.')[-1].lower() == 's' |
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def is_llvm_ir(fname): |
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if hasattr(fname, 'fname'): |
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fname = fname.fname |
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return fname.split('.')[-1] == 'll' |
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@lru_cache(maxsize=None) |
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def cached_by_name(fname): |
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suffix = fname.split('.')[-1] |
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return suffix in obj_suffixes |
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def is_object(fname): |
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if hasattr(fname, 'fname'): |
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fname = fname.fname |
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return cached_by_name(fname) |
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def is_library(fname): |
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if hasattr(fname, 'fname'): |
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fname = fname.fname |
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if soregex.match(fname): |
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return True |
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suffix = fname.split('.')[-1] |
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return suffix in lib_suffixes |
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def is_known_suffix(fname): |
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if hasattr(fname, 'fname'): |
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fname = fname.fname |
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suffix = fname.split('.')[-1] |
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return suffix in all_suffixes |
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cuda_buildtype_args = {'plain': [], |
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'debug': [], |
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'debugoptimized': [], |
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'release': [], |
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'minsize': [], |
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} |
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java_buildtype_args = {'plain': [], |
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'debug': ['-g'], |
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'debugoptimized': ['-g'], |
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'release': [], |
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'minsize': [], |
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'custom': [], |
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} |
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rust_buildtype_args = {'plain': [], |
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'debug': [], |
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'debugoptimized': [], |
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'release': [], |
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'minsize': [], |
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'custom': [], |
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} |
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d_gdc_buildtype_args = {'plain': [], |
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'debug': [], |
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'debugoptimized': ['-finline-functions'], |
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'release': ['-finline-functions'], |
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'minsize': [], |
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'custom': [], |
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} |
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d_ldc_buildtype_args = {'plain': [], |
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'debug': [], |
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'debugoptimized': ['-enable-inlining', '-Hkeep-all-bodies'], |
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'release': ['-enable-inlining', '-Hkeep-all-bodies'], |
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'minsize': [], |
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'custom': [], |
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} |
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d_dmd_buildtype_args = {'plain': [], |
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'debug': [], |
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'debugoptimized': ['-inline'], |
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'release': ['-inline'], |
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'minsize': [], |
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'custom': [], |
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} |
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mono_buildtype_args = {'plain': [], |
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'debug': [], |
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'debugoptimized': ['-optimize+'], |
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'release': ['-optimize+'], |
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'minsize': [], |
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'custom': [], |
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} |
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swift_buildtype_args = {'plain': [], |
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'debug': [], |
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'debugoptimized': [], |
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'release': [], |
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'minsize': [], |
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'custom': [], |
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} |
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gnu_winlibs = ['-lkernel32', '-luser32', '-lgdi32', '-lwinspool', '-lshell32', |
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'-lole32', '-loleaut32', '-luuid', '-lcomdlg32', '-ladvapi32'] |
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msvc_winlibs = ['kernel32.lib', 'user32.lib', 'gdi32.lib', |
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'winspool.lib', 'shell32.lib', 'ole32.lib', 'oleaut32.lib', |
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'uuid.lib', 'comdlg32.lib', 'advapi32.lib'] |
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clike_optimization_args = {'0': [], |
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'g': [], |
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'1': ['-O1'], |
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'2': ['-O2'], |
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'3': ['-O3'], |
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's': ['-Os'], |
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} |
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cuda_optimization_args = {'0': [], |
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'g': ['-O0'], |
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'1': ['-O1'], |
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'2': ['-O2'], |
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'3': ['-O3'], |
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's': ['-O3'] |
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} |
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cuda_debug_args = {False: [], |
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True: ['-g']} |
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clike_debug_args = {False: [], |
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True: ['-g']} |
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base_options = {'b_pch': coredata.UserBooleanOption('Use precompiled headers', True), |
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'b_lto': coredata.UserBooleanOption('Use link time optimization', False), |
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'b_sanitize': coredata.UserComboOption('Code sanitizer to use', |
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['none', 'address', 'thread', 'undefined', 'memory', 'address,undefined'], |
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'none'), |
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'b_lundef': coredata.UserBooleanOption('Use -Wl,--no-undefined when linking', True), |
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'b_asneeded': coredata.UserBooleanOption('Use -Wl,--as-needed when linking', True), |
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'b_pgo': coredata.UserComboOption('Use profile guided optimization', |
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['off', 'generate', 'use'], |
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'off'), |
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'b_coverage': coredata.UserBooleanOption('Enable coverage tracking.', |
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False), |
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'b_colorout': coredata.UserComboOption('Use colored output', |
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['auto', 'always', 'never'], |
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'always'), |
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'b_ndebug': coredata.UserComboOption('Disable asserts', |
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['true', 'false', 'if-release'], 'false'), |
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'b_staticpic': coredata.UserBooleanOption('Build static libraries as position independent', |
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True), |
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'b_pie': coredata.UserBooleanOption('Build executables as position independent', |
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False), |
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'b_bitcode': coredata.UserBooleanOption('Generate and embed bitcode (only macOS/iOS/tvOS)', |
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False), |
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'b_vscrt': coredata.UserComboOption('VS run-time library type to use.', |
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['none', 'md', 'mdd', 'mt', 'mtd', 'from_buildtype'], |
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'from_buildtype'), |
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} |
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def option_enabled(boptions, options, option): |
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try: |
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if option not in boptions: |
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return False |
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return options[option].value |
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except KeyError: |
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return False |
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def get_base_compile_args(options, compiler): |
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args = [] |
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try: |
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if options['b_lto'].value: |
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args.extend(compiler.get_lto_compile_args()) |
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except KeyError: |
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pass |
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try: |
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args += compiler.get_colorout_args(options['b_colorout'].value) |
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except KeyError: |
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pass |
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try: |
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args += compiler.sanitizer_compile_args(options['b_sanitize'].value) |
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except KeyError: |
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pass |
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try: |
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pgo_val = options['b_pgo'].value |
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if pgo_val == 'generate': |
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args.extend(compiler.get_profile_generate_args()) |
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elif pgo_val == 'use': |
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args.extend(compiler.get_profile_use_args()) |
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except KeyError: |
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pass |
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try: |
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if options['b_coverage'].value: |
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args += compiler.get_coverage_args() |
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except KeyError: |
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pass |
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try: |
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if (options['b_ndebug'].value == 'true' or |
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(options['b_ndebug'].value == 'if-release' and |
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options['buildtype'].value in {'release', 'plain'})): |
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args += compiler.get_disable_assert_args() |
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except KeyError: |
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pass |
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# This does not need a try...except |
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if option_enabled(compiler.base_options, options, 'b_bitcode'): |
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args.append('-fembed-bitcode') |
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try: |
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crt_val = options['b_vscrt'].value |
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buildtype = options['buildtype'].value |
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try: |
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args += compiler.get_crt_compile_args(crt_val, buildtype) |
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except AttributeError: |
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pass |
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except KeyError: |
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pass |
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return args |
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def get_base_link_args(options, linker, is_shared_module): |
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args = [] |
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try: |
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if options['b_lto'].value: |
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args.extend(linker.get_lto_link_args()) |
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except KeyError: |
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pass |
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try: |
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args += linker.sanitizer_link_args(options['b_sanitize'].value) |
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except KeyError: |
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pass |
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try: |
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pgo_val = options['b_pgo'].value |
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if pgo_val == 'generate': |
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args.extend(linker.get_profile_generate_args()) |
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elif pgo_val == 'use': |
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args.extend(linker.get_profile_use_args()) |
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except KeyError: |
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pass |
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try: |
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if options['b_coverage'].value: |
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args += linker.get_coverage_link_args() |
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except KeyError: |
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pass |
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as_needed = option_enabled(linker.base_options, options, 'b_asneeded') |
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bitcode = option_enabled(linker.base_options, options, 'b_bitcode') |
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# Shared modules cannot be built with bitcode_bundle because |
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# -bitcode_bundle is incompatible with -undefined and -bundle |
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if bitcode and not is_shared_module: |
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args.extend(linker.bitcode_args()) |
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elif as_needed: |
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# -Wl,-dead_strip_dylibs is incompatible with bitcode |
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args.extend(linker.get_asneeded_args()) |
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# Apple's ld (the only one that supports bitcode) does not like any |
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# -undefined arguments at all, so don't pass these when using bitcode |
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if not bitcode: |
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if (not is_shared_module and |
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option_enabled(linker.base_options, options, 'b_lundef')): |
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args.extend(linker.no_undefined_link_args()) |
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else: |
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args.extend(linker.get_allow_undefined_link_args()) |
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try: |
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crt_val = options['b_vscrt'].value |
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buildtype = options['buildtype'].value |
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try: |
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args += linker.get_crt_link_args(crt_val, buildtype) |
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except AttributeError: |
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pass |
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except KeyError: |
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pass |
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return args |
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class CrossNoRunException(MesonException): |
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pass |
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class RunResult: |
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def __init__(self, compiled, returncode=999, stdout='UNDEFINED', stderr='UNDEFINED'): |
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self.compiled = compiled |
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self.returncode = returncode |
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self.stdout = stdout |
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self.stderr = stderr |
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class CompilerArgs(collections.abc.MutableSequence): |
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''' |
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List-like class that manages a list of compiler arguments. Should be used |
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while constructing compiler arguments from various sources. Can be |
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operated with ordinary lists, so this does not need to be used |
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everywhere. |
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All arguments must be inserted and stored in GCC-style (-lfoo, -Idir, etc) |
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and can converted to the native type of each compiler by using the |
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.to_native() method to which you must pass an instance of the compiler or |
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the compiler class. |
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New arguments added to this class (either with .append(), .extend(), or +=) |
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are added in a way that ensures that they override previous arguments. |
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For example: |
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>>> a = ['-Lfoo', '-lbar'] |
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>>> a += ['-Lpho', '-lbaz'] |
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>>> print(a) |
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['-Lpho', '-Lfoo', '-lbar', '-lbaz'] |
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Arguments will also be de-duped if they can be de-duped safely. |
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Note that because of all this, this class is not commutative and does not |
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preserve the order of arguments if it is safe to not. For example: |
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>>> ['-Ifoo', '-Ibar'] + ['-Ifez', '-Ibaz', '-Werror'] |
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['-Ifez', '-Ibaz', '-Ifoo', '-Ibar', '-Werror'] |
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>>> ['-Ifez', '-Ibaz', '-Werror'] + ['-Ifoo', '-Ibar'] |
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['-Ifoo', '-Ibar', '-Ifez', '-Ibaz', '-Werror'] |
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''' |
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# NOTE: currently this class is only for C-like compilers, but it can be |
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# extended to other languages easily. Just move the following to the |
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# compiler class and initialize when self.compiler is set. |
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|
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# Arg prefixes that override by prepending instead of appending |
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prepend_prefixes = ('-I', '-L') |
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# Arg prefixes and args that must be de-duped by returning 2 |
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dedup2_prefixes = ('-I', '-isystem', '-L', '-D', '-U') |
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dedup2_suffixes = () |
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dedup2_args = () |
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# Arg prefixes and args that must be de-duped by returning 1 |
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# |
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# NOTE: not thorough. A list of potential corner cases can be found in |
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# https://github.com/mesonbuild/meson/pull/4593#pullrequestreview-182016038 |
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dedup1_prefixes = ('-l', '-Wl,-l', '-Wl,--export-dynamic') |
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dedup1_suffixes = ('.lib', '.dll', '.so', '.dylib', '.a') |
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# Match a .so of the form path/to/libfoo.so.0.1.0 |
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# Only UNIX shared libraries require this. Others have a fixed extension. |
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dedup1_regex = re.compile(r'([\/\\]|\A)lib.*\.so(\.[0-9]+)?(\.[0-9]+)?(\.[0-9]+)?$') |
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dedup1_args = ('-c', '-S', '-E', '-pipe', '-pthread') |
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# In generate_link() we add external libs without de-dup, but we must |
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# *always* de-dup these because they're special arguments to the linker |
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always_dedup_args = tuple('-l' + lib for lib in unixy_compiler_internal_libs) |
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|
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def __init__(self, compiler: T.Union['Compiler', StaticLinker], |
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iterable: T.Optional[T.Iterable[str]] = None): |
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self.compiler = compiler |
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self.__container = list(iterable) if iterable is not None else [] # type: T.List[str] |
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self.pre = deque() |
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self.post = deque() |
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|
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# Flush the saved pre and post list into the __container list |
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# |
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# This correctly deduplicates the entries after _can_dedup definition |
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# Note: This function is designed to work without delete operations, as deletions are worsening the performance a lot. |
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def flush_pre_post(self): |
|
pre_flush = deque() |
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pre_flush_set = set() |
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post_flush = deque() |
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post_flush_set = set() |
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|
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#The two lists are here walked from the front to the back, in order to not need removals for deduplication |
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for a in reversed(self.pre): |
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dedup = self._can_dedup(a) |
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if a not in pre_flush_set: |
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pre_flush.appendleft(a) |
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if dedup == 2: |
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pre_flush_set.add(a) |
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for a in reversed(self.post): |
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dedup = self._can_dedup(a) |
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if a not in post_flush_set: |
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post_flush.appendleft(a) |
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if dedup == 2: |
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post_flush_set.add(a) |
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|
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#pre and post will overwrite every element that is in the container |
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#only copy over args that are in __container but not in the post flush or pre flush set |
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|
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for a in self.__container: |
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if a not in post_flush_set and a not in pre_flush_set: |
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pre_flush.append(a) |
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self.__container = list(pre_flush) + list(post_flush) |
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self.pre.clear() |
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self.post.clear() |
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|
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def __iter__(self): |
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self.flush_pre_post() |
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return iter(self.__container); |
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|
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@T.overload # noqa: F811 |
|
def __getitem__(self, index: int) -> str: # noqa: F811 |
|
pass |
|
|
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@T.overload # noqa: F811 |
|
def __getitem__(self, index: slice) -> T.List[str]: # noqa: F811 |
|
pass |
|
|
|
def __getitem__(self, index): # noqa: F811 |
|
self.flush_pre_post() |
|
return self.__container[index] |
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|
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@T.overload # noqa: F811 |
|
def __setitem__(self, index: int, value: str) -> None: # noqa: F811 |
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pass |
|
|
|
@T.overload # noqa: F811 |
|
def __setitem__(self, index: slice, value: T.List[str]) -> None: # noqa: F811 |
|
pass |
|
|
|
def __setitem__(self, index, value) -> None: # noqa: F811 |
|
self.flush_pre_post() |
|
self.__container[index] = value |
|
|
|
def __delitem__(self, index: T.Union[int, slice]) -> None: |
|
self.flush_pre_post() |
|
del self.__container[index] |
|
|
|
def __len__(self) -> int: |
|
return len(self.__container) + len(self.pre) + len(self.post) |
|
|
|
def insert(self, index: int, value: str) -> None: |
|
self.flush_pre_post() |
|
self.__container.insert(index, value) |
|
|
|
def copy(self) -> 'CompilerArgs': |
|
self.flush_pre_post() |
|
return CompilerArgs(self.compiler, self.__container.copy()) |
|
|
|
@classmethod |
|
@lru_cache(maxsize=None) |
|
def _can_dedup(cls, arg): |
|
''' |
|
Returns whether the argument can be safely de-duped. This is dependent |
|
on three things: |
|
|
|
a) Whether an argument can be 'overridden' by a later argument. For |
|
example, -DFOO defines FOO and -UFOO undefines FOO. In this case, we |
|
can safely remove the previous occurrence and add a new one. The same |
|
is true for include paths and library paths with -I and -L. For |
|
these we return `2`. See `dedup2_prefixes` and `dedup2_args`. |
|
b) Arguments that once specified cannot be undone, such as `-c` or |
|
`-pipe`. New instances of these can be completely skipped. For these |
|
we return `1`. See `dedup1_prefixes` and `dedup1_args`. |
|
c) Whether it matters where or how many times on the command-line |
|
a particular argument is present. This can matter for symbol |
|
resolution in static or shared libraries, so we cannot de-dup or |
|
reorder them. For these we return `0`. This is the default. |
|
|
|
In addition to these, we handle library arguments specially. |
|
With GNU ld, we surround library arguments with -Wl,--start/end-group |
|
to recursively search for symbols in the libraries. This is not needed |
|
with other linkers. |
|
''' |
|
# A standalone argument must never be deduplicated because it is |
|
# defined by what comes _after_ it. Thus dedupping this: |
|
# -D FOO -D BAR |
|
# would yield either |
|
# -D FOO BAR |
|
# or |
|
# FOO -D BAR |
|
# both of which are invalid. |
|
if arg in cls.dedup2_prefixes: |
|
return 0 |
|
if arg.startswith('-L='): |
|
# DMD and LDC proxy all linker arguments using -L=; in conjunction |
|
# with ld64 on macOS this can lead to command line arguments such |
|
# as: `-L=-compatibility_version -L=0 -L=current_version -L=0`. |
|
# These cannot be combined, ld64 insists they must be passed with |
|
# spaces and quoting does not work. if we deduplicate these then |
|
# one of the -L=0 arguments will be removed and the version |
|
# argument will consume the next argument instead. |
|
return 0 |
|
if arg in cls.dedup2_args or \ |
|
arg.startswith(cls.dedup2_prefixes) or \ |
|
arg.endswith(cls.dedup2_suffixes): |
|
return 2 |
|
if arg in cls.dedup1_args or \ |
|
arg.startswith(cls.dedup1_prefixes) or \ |
|
arg.endswith(cls.dedup1_suffixes) or \ |
|
re.search(cls.dedup1_regex, arg): |
|
return 1 |
|
return 0 |
|
|
|
@classmethod |
|
@lru_cache(maxsize=None) |
|
def _should_prepend(cls, arg): |
|
if arg.startswith(cls.prepend_prefixes): |
|
return True |
|
return False |
|
|
|
def need_to_split_linker_args(self): |
|
return isinstance(self.compiler, Compiler) and self.compiler.get_language() == 'd' |
|
|
|
def to_native(self, copy: bool = False) -> T.List[str]: |
|
# Check if we need to add --start/end-group for circular dependencies |
|
# between static libraries, and for recursively searching for symbols |
|
# needed by static libraries that are provided by object files or |
|
# shared libraries. |
|
self.flush_pre_post() |
|
if copy: |
|
new = self.copy() |
|
else: |
|
new = self |
|
# To proxy these arguments with D you need to split the |
|
# arguments, thus you get `-L=-soname -L=lib.so` we don't |
|
# want to put the lib in a link -roup |
|
split_linker_args = self.need_to_split_linker_args() |
|
# This covers all ld.bfd, ld.gold, ld.gold, and xild on Linux, which |
|
# all act like (or are) gnu ld |
|
# TODO: this could probably be added to the DynamicLinker instead |
|
if (isinstance(self.compiler, Compiler) and |
|
self.compiler.linker is not None and |
|
isinstance(self.compiler.linker, (GnuLikeDynamicLinkerMixin, SolarisDynamicLinker))): |
|
group_start = -1 |
|
group_end = -1 |
|
is_soname = False |
|
for i, each in enumerate(new): |
|
if is_soname: |
|
is_soname = False |
|
continue |
|
elif split_linker_args and '-soname' in each: |
|
is_soname = True |
|
continue |
|
if not each.startswith(('-Wl,-l', '-l')) and not each.endswith('.a') and \ |
|
not soregex.match(each): |
|
continue |
|
group_end = i |
|
if group_start < 0: |
|
# First occurrence of a library |
|
group_start = i |
|
if group_start >= 0: |
|
# Last occurrence of a library |
|
new.insert(group_end + 1, '-Wl,--end-group') |
|
new.insert(group_start, '-Wl,--start-group') |
|
# Remove system/default include paths added with -isystem |
|
if hasattr(self.compiler, 'get_default_include_dirs'): |
|
default_dirs = self.compiler.get_default_include_dirs() |
|
bad_idx_list = [] # type: T.List[int] |
|
for i, each in enumerate(new): |
|
# Remove the -isystem and the path if the path is a default path |
|
if (each == '-isystem' and |
|
i < (len(new) - 1) and |
|
new[i + 1] in default_dirs): |
|
bad_idx_list += [i, i + 1] |
|
elif each.startswith('-isystem=') and each[9:] in default_dirs: |
|
bad_idx_list += [i] |
|
elif each.startswith('-isystem') and each[8:] in default_dirs: |
|
bad_idx_list += [i] |
|
for i in reversed(bad_idx_list): |
|
new.pop(i) |
|
return self.compiler.unix_args_to_native(new.__container) |
|
|
|
def append_direct(self, arg: str) -> None: |
|
''' |
|
Append the specified argument without any reordering or de-dup except |
|
for absolute paths to libraries, etc, which can always be de-duped |
|
safely. |
|
''' |
|
self.flush_pre_post() |
|
if os.path.isabs(arg): |
|
self.append(arg) |
|
else: |
|
self.__container.append(arg) |
|
|
|
def extend_direct(self, iterable: T.Iterable[str]) -> None: |
|
''' |
|
Extend using the elements in the specified iterable without any |
|
reordering or de-dup except for absolute paths where the order of |
|
include search directories is not relevant |
|
''' |
|
self.flush_pre_post() |
|
for elem in iterable: |
|
self.append_direct(elem) |
|
|
|
def extend_preserving_lflags(self, iterable: T.Iterable[str]) -> None: |
|
normal_flags = [] |
|
lflags = [] |
|
for i in iterable: |
|
if i not in self.always_dedup_args and (i.startswith('-l') or i.startswith('-L')): |
|
lflags.append(i) |
|
else: |
|
normal_flags.append(i) |
|
self.extend(normal_flags) |
|
self.extend_direct(lflags) |
|
|
|
def __add__(self, args: T.Iterable[str]) -> 'CompilerArgs': |
|
self.flush_pre_post() |
|
new = self.copy() |
|
new += args |
|
return new |
|
|
|
def __iadd__(self, args: T.Iterable[str]) -> 'CompilerArgs': |
|
''' |
|
Add two CompilerArgs while taking into account overriding of arguments |
|
and while preserving the order of arguments as much as possible |
|
''' |
|
tmp_pre = deque() |
|
if not isinstance(args, collections.abc.Iterable): |
|
raise TypeError('can only concatenate Iterable[str] (not "{}") to CompilerArgs'.format(args)) |
|
for arg in args: |
|
# If the argument can be de-duped, do it either by removing the |
|
# previous occurrence of it and adding a new one, or not adding the |
|
# new occurrence. |
|
dedup = self._can_dedup(arg) |
|
if dedup == 1: |
|
# Argument already exists and adding a new instance is useless |
|
if arg in self.__container or arg in self.pre or arg in self.post: |
|
continue |
|
if self._should_prepend(arg): |
|
tmp_pre.appendleft(arg) |
|
else: |
|
self.post.append(arg) |
|
self.pre.extendleft(tmp_pre) |
|
#pre and post is going to be merged later before a iter call |
|
return self |
|
|
|
def __radd__(self, args: T.Iterable[str]): |
|
self.flush_pre_post() |
|
new = CompilerArgs(self.compiler, args) |
|
new += self |
|
return new |
|
|
|
def __eq__(self, other: T.Any) -> T.Union[bool, type(NotImplemented)]: |
|
self.flush_pre_post() |
|
# Only allow equality checks against other CompilerArgs and lists instances |
|
if isinstance(other, CompilerArgs): |
|
return self.compiler == other.compiler and self.__container == other.__container |
|
elif isinstance(other, list): |
|
return self.__container == other |
|
return NotImplemented |
|
|
|
def append(self, arg: str) -> None: |
|
self.__iadd__([arg]) |
|
|
|
def extend(self, args: T.Iterable[str]) -> None: |
|
self.__iadd__(args) |
|
|
|
def __repr__(self) -> str: |
|
self.flush_pre_post() |
|
return 'CompilerArgs({!r}, {!r})'.format(self.compiler, self.__container) |
|
|
|
class Compiler: |
|
# Libraries to ignore in find_library() since they are provided by the |
|
# compiler or the C library. Currently only used for MSVC. |
|
ignore_libs = () |
|
# Libraries that are internal compiler implementations, and must not be |
|
# manually searched. |
|
internal_libs = () |
|
|
|
LINKER_PREFIX = None # type: T.Union[None, str, T.List[str]] |
|
INVOKES_LINKER = True |
|
|
|
def __init__(self, exelist, version, for_machine: MachineChoice, info: 'MachineInfo', |
|
linker: T.Optional['DynamicLinker'] = None, **kwargs): |
|
if isinstance(exelist, str): |
|
self.exelist = [exelist] |
|
elif isinstance(exelist, list): |
|
self.exelist = exelist |
|
else: |
|
raise TypeError('Unknown argument to Compiler') |
|
# In case it's been overridden by a child class already |
|
if not hasattr(self, 'file_suffixes'): |
|
self.file_suffixes = lang_suffixes[self.language] |
|
if not hasattr(self, 'can_compile_suffixes'): |
|
self.can_compile_suffixes = set(self.file_suffixes) |
|
self.default_suffix = self.file_suffixes[0] |
|
self.version = version |
|
if 'full_version' in kwargs: |
|
self.full_version = kwargs['full_version'] |
|
else: |
|
self.full_version = None |
|
self.for_machine = for_machine |
|
self.base_options = [] |
|
self.linker = linker |
|
self.info = info |
|
|
|
def __repr__(self): |
|
repr_str = "<{0}: v{1} `{2}`>" |
|
return repr_str.format(self.__class__.__name__, self.version, |
|
' '.join(self.exelist)) |
|
|
|
@lru_cache(maxsize=None) |
|
def can_compile(self, src) -> bool: |
|
if hasattr(src, 'fname'): |
|
src = src.fname |
|
suffix = os.path.splitext(src)[1].lower() |
|
if suffix and suffix[1:] in self.can_compile_suffixes: |
|
return True |
|
return False |
|
|
|
def get_id(self) -> str: |
|
return self.id |
|
|
|
def get_linker_id(self) -> str: |
|
# There is not guarantee that we have a dynamic linker instance, as |
|
# some languages don't have separate linkers and compilers. In those |
|
# cases return the compiler id |
|
try: |
|
return self.linker.id |
|
except AttributeError: |
|
return self.id |
|
|
|
def get_version_string(self) -> str: |
|
details = [self.id, self.version] |
|
if self.full_version: |
|
details += ['"%s"' % (self.full_version)] |
|
return '(%s)' % (' '.join(details)) |
|
|
|
def get_language(self) -> str: |
|
return self.language |
|
|
|
@classmethod |
|
def get_display_language(cls) -> str: |
|
return cls.language.capitalize() |
|
|
|
def get_default_suffix(self) -> str: |
|
return self.default_suffix |
|
|
|
def get_define(self, dname, prefix, env, extra_args, dependencies) -> T.Tuple[str, bool]: |
|
raise EnvironmentException('%s does not support get_define ' % self.get_id()) |
|
|
|
def compute_int(self, expression, low, high, guess, prefix, env, extra_args, dependencies) -> int: |
|
raise EnvironmentException('%s does not support compute_int ' % self.get_id()) |
|
|
|
def compute_parameters_with_absolute_paths(self, parameter_list, build_dir): |
|
raise EnvironmentException('%s does not support compute_parameters_with_absolute_paths ' % self.get_id()) |
|
|
|
def has_members(self, typename, membernames, prefix, env, *, |
|
extra_args=None, dependencies=None) -> T.Tuple[bool, bool]: |
|
raise EnvironmentException('%s does not support has_member(s) ' % self.get_id()) |
|
|
|
def has_type(self, typename, prefix, env, extra_args, *, |
|
dependencies=None) -> T.Tuple[bool, bool]: |
|
raise EnvironmentException('%s does not support has_type ' % self.get_id()) |
|
|
|
def symbols_have_underscore_prefix(self, env) -> bool: |
|
raise EnvironmentException('%s does not support symbols_have_underscore_prefix ' % self.get_id()) |
|
|
|
def get_exelist(self): |
|
return self.exelist[:] |
|
|
|
def get_linker_exelist(self) -> T.List[str]: |
|
return self.linker.get_exelist() |
|
|
|
def get_linker_output_args(self, outputname: str) -> T.List[str]: |
|
return self.linker.get_output_args(outputname) |
|
|
|
def get_builtin_define(self, *args, **kwargs): |
|
raise EnvironmentException('%s does not support get_builtin_define.' % self.id) |
|
|
|
def has_builtin_define(self, *args, **kwargs): |
|
raise EnvironmentException('%s does not support has_builtin_define.' % self.id) |
|
|
|
def get_always_args(self): |
|
return [] |
|
|
|
def can_linker_accept_rsp(self) -> bool: |
|
""" |
|
Determines whether the linker can accept arguments using the @rsp syntax. |
|
""" |
|
return self.linker.get_accepts_rsp() |
|
|
|
def get_linker_always_args(self) -> T.List[str]: |
|
return self.linker.get_always_args() |
|
|
|
def get_linker_lib_prefix(self): |
|
return self.linker.get_lib_prefix() |
|
|
|
def gen_import_library_args(self, implibname): |
|
""" |
|
Used only on Windows for libraries that need an import library. |
|
This currently means C, C++, Fortran. |
|
""" |
|
return [] |
|
|
|
def get_linker_args_from_envvars(self, |
|
for_machine: MachineChoice, |
|
is_cross: bool) -> T.List[str]: |
|
return self.linker.get_args_from_envvars(for_machine, is_cross) |
|
|
|
def get_options(self) -> T.Dict[str, coredata.UserOption]: |
|
return {} |
|
|
|
def get_option_compile_args(self, options): |
|
return [] |
|
|
|
def get_option_link_args(self, options: 'OptionDictType') -> T.List[str]: |
|
return self.linker.get_option_args(options) |
|
|
|
def check_header(self, *args, **kwargs) -> T.Tuple[bool, bool]: |
|
raise EnvironmentException('Language %s does not support header checks.' % self.get_display_language()) |
|
|
|
def has_header(self, *args, **kwargs) -> T.Tuple[bool, bool]: |
|
raise EnvironmentException('Language %s does not support header checks.' % self.get_display_language()) |
|
|
|
def has_header_symbol(self, *args, **kwargs) -> T.Tuple[bool, bool]: |
|
raise EnvironmentException('Language %s does not support header symbol checks.' % self.get_display_language()) |
|
|
|
def compiles(self, *args, **kwargs) -> T.Tuple[bool, bool]: |
|
raise EnvironmentException('Language %s does not support compile checks.' % self.get_display_language()) |
|
|
|
def links(self, *args, **kwargs) -> T.Tuple[bool, bool]: |
|
raise EnvironmentException('Language %s does not support link checks.' % self.get_display_language()) |
|
|
|
def run(self, *args, **kwargs) -> RunResult: |
|
raise EnvironmentException('Language %s does not support run checks.' % self.get_display_language()) |
|
|
|
def sizeof(self, *args, **kwargs) -> int: |
|
raise EnvironmentException('Language %s does not support sizeof checks.' % self.get_display_language()) |
|
|
|
def alignment(self, *args, **kwargs) -> int: |
|
raise EnvironmentException('Language %s does not support alignment checks.' % self.get_display_language()) |
|
|
|
def has_function(self, *args, **kwargs) -> T.Tuple[bool, bool]: |
|
raise EnvironmentException('Language %s does not support function checks.' % self.get_display_language()) |
|
|
|
@classmethod |
|
def unix_args_to_native(cls, args): |
|
"Always returns a copy that can be independently mutated" |
|
return args[:] |
|
|
|
@classmethod |
|
def native_args_to_unix(cls, args: T.List[str]) -> T.List[str]: |
|
"Always returns a copy that can be independently mutated" |
|
return args[:] |
|
|
|
def find_library(self, *args, **kwargs): |
|
raise EnvironmentException('Language {} does not support library finding.'.format(self.get_display_language())) |
|
|
|
def get_library_dirs(self, *args, **kwargs): |
|
return () |
|
|
|
def get_program_dirs(self, *args, **kwargs): |
|
return [] |
|
|
|
def has_multi_arguments(self, args, env) -> T.Tuple[bool, bool]: |
|
raise EnvironmentException( |
|
'Language {} does not support has_multi_arguments.'.format( |
|
self.get_display_language())) |
|
|
|
def has_multi_link_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]: |
|
return self.linker.has_multi_arguments(args, env) |
|
|
|
def _get_compile_output(self, dirname, mode): |
|
# In pre-processor mode, the output is sent to stdout and discarded |
|
if mode == 'preprocess': |
|
return None |
|
# Extension only matters if running results; '.exe' is |
|
# guaranteed to be executable on every platform. |
|
if mode == 'link': |
|
suffix = 'exe' |
|
else: |
|
suffix = 'obj' |
|
return os.path.join(dirname, 'output.' + suffix) |
|
|
|
def get_compiler_args_for_mode(self, mode): |
|
args = [] |
|
args += self.get_always_args() |
|
if mode == 'compile': |
|
args += self.get_compile_only_args() |
|
if mode == 'preprocess': |
|
args += self.get_preprocess_only_args() |
|
return args |
|
|
|
@contextlib.contextmanager |
|
def compile(self, code: str, extra_args: list = None, *, mode: str = 'link', want_output: bool = False, temp_dir: str = None): |
|
if extra_args is None: |
|
extra_args = [] |
|
try: |
|
with tempfile.TemporaryDirectory(dir=temp_dir) as tmpdirname: |
|
no_ccache = False |
|
if isinstance(code, str): |
|
srcname = os.path.join(tmpdirname, |
|
'testfile.' + self.default_suffix) |
|
with open(srcname, 'w') as ofile: |
|
ofile.write(code) |
|
# ccache would result in a cache miss |
|
no_ccache = True |
|
elif isinstance(code, mesonlib.File): |
|
srcname = code.fname |
|
|
|
# Construct the compiler command-line |
|
commands = CompilerArgs(self) |
|
commands.append(srcname) |
|
# Preprocess mode outputs to stdout, so no output args |
|
if mode != 'preprocess': |
|
output = self._get_compile_output(tmpdirname, mode) |
|
commands += self.get_output_args(output) |
|
commands.extend(self.get_compiler_args_for_mode(mode)) |
|
# extra_args must be last because it could contain '/link' to |
|
# pass args to VisualStudio's linker. In that case everything |
|
# in the command line after '/link' is given to the linker. |
|
commands += extra_args |
|
# Generate full command-line with the exelist |
|
commands = self.get_exelist() + commands.to_native() |
|
mlog.debug('Running compile:') |
|
mlog.debug('Working directory: ', tmpdirname) |
|
mlog.debug('Command line: ', ' '.join(commands), '\n') |
|
mlog.debug('Code:\n', code) |
|
os_env = os.environ.copy() |
|
os_env['LC_ALL'] = 'C' |
|
if no_ccache: |
|
os_env['CCACHE_DISABLE'] = '1' |
|
p, p.stdo, p.stde = Popen_safe(commands, cwd=tmpdirname, env=os_env) |
|
mlog.debug('Compiler stdout:\n', p.stdo) |
|
mlog.debug('Compiler stderr:\n', p.stde) |
|
p.commands = commands |
|
p.input_name = srcname |
|
if want_output: |
|
p.output_name = output |
|
p.cached = False # Make sure that the cached attribute always exists |
|
yield p |
|
except OSError: |
|
# On Windows antivirus programs and the like hold on to files so |
|
# they can't be deleted. There's not much to do in this case. Also, |
|
# catch OSError because the directory is then no longer empty. |
|
pass |
|
|
|
@contextlib.contextmanager |
|
def cached_compile(self, code, cdata: coredata.CoreData, *, extra_args=None, mode: str = 'link', temp_dir=None): |
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assert(isinstance(cdata, coredata.CoreData)) |
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|
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# Calculate the key |
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textra_args = tuple(extra_args) if extra_args is not None else None |
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key = (tuple(self.exelist), self.version, code, textra_args, mode) |
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|
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# Check if not cached |
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if key not in cdata.compiler_check_cache: |
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with self.compile(code, extra_args=extra_args, mode=mode, want_output=False, temp_dir=temp_dir) as p: |
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# Remove all attributes except the following |
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# This way the object can be serialized |
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tokeep = ['args', 'commands', 'input_name', 'output_name', |
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'pid', 'returncode', 'stdo', 'stde', 'text_mode'] |
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todel = [x for x in vars(p).keys() if x not in tokeep] |
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for i in todel: |
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delattr(p, i) |
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p.cached = False |
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cdata.compiler_check_cache[key] = p |
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yield p |
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return |
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|
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# Return cached |
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p = cdata.compiler_check_cache[key] |
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p.cached = True |
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mlog.debug('Using cached compile:') |
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mlog.debug('Cached command line: ', ' '.join(p.commands), '\n') |
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mlog.debug('Code:\n', code) |
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mlog.debug('Cached compiler stdout:\n', p.stdo) |
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mlog.debug('Cached compiler stderr:\n', p.stde) |
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yield p |
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|
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def get_colorout_args(self, colortype): |
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return [] |
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|
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# Some compilers (msvc) write debug info to a separate file. |
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# These args specify where it should be written. |
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def get_compile_debugfile_args(self, rel_obj, **kwargs): |
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return [] |
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|
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def get_link_debugfile_name(self, targetfile: str) -> str: |
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return self.linker.get_debugfile_name(targetfile) |
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|
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def get_link_debugfile_args(self, targetfile: str) -> T.List[str]: |
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return self.linker.get_debugfile_args(targetfile) |
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|
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def get_std_shared_lib_link_args(self) -> T.List[str]: |
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return self.linker.get_std_shared_lib_args() |
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|
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def get_std_shared_module_link_args(self, options: 'OptionDictType') -> T.List[str]: |
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return self.linker.get_std_shared_module_args(options) |
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|
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def get_link_whole_for(self, args: T.List[str]) -> T.List[str]: |
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return self.linker.get_link_whole_for(args) |
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|
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def get_allow_undefined_link_args(self) -> T.List[str]: |
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return self.linker.get_allow_undefined_args() |
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|
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def no_undefined_link_args(self) -> T.List[str]: |
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return self.linker.no_undefined_args() |
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|
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# Compiler arguments needed to enable the given instruction set. |
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# May be [] meaning nothing needed or None meaning the given set |
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# is not supported. |
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def get_instruction_set_args(self, instruction_set): |
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return None |
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|
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def build_rpath_args(self, env: 'Environment', build_dir: str, from_dir: str, |
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rpath_paths: str, build_rpath: str, |
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install_rpath: str) -> T.Tuple[T.List[str], T.Set[bytes]]: |
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return self.linker.build_rpath_args( |
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env, build_dir, from_dir, rpath_paths, build_rpath, install_rpath) |
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|
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def thread_flags(self, env): |
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return [] |
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|
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def openmp_flags(self): |
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raise EnvironmentException('Language %s does not support OpenMP flags.' % self.get_display_language()) |
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|
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def openmp_link_flags(self): |
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return self.openmp_flags() |
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|
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def language_stdlib_only_link_flags(self): |
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return [] |
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|
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def gnu_symbol_visibility_args(self, vistype): |
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return [] |
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|
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def get_gui_app_args(self, value): |
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return [] |
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|
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def has_func_attribute(self, name, env): |
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raise EnvironmentException( |
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'Language {} does not support function attributes.'.format(self.get_display_language())) |
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|
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def get_pic_args(self): |
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m = 'Language {} does not support position-independent code' |
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raise EnvironmentException(m.format(self.get_display_language())) |
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|
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def get_pie_args(self): |
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m = 'Language {} does not support position-independent executable' |
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raise EnvironmentException(m.format(self.get_display_language())) |
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|
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def get_pie_link_args(self) -> T.List[str]: |
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return self.linker.get_pie_args() |
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|
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def get_argument_syntax(self): |
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"""Returns the argument family type. |
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|
|
Compilers fall into families if they try to emulate the command line |
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interface of another compiler. For example, clang is in the GCC family |
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since it accepts most of the same arguments as GCC. ICL (ICC on |
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windows) is in the MSVC family since it accepts most of the same |
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arguments as MSVC. |
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""" |
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return 'other' |
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|
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def get_profile_generate_args(self): |
|
raise EnvironmentException( |
|
'%s does not support get_profile_generate_args ' % self.get_id()) |
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|
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def get_profile_use_args(self): |
|
raise EnvironmentException( |
|
'%s does not support get_profile_use_args ' % self.get_id()) |
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|
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def get_undefined_link_args(self) -> T.List[str]: |
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return self.linker.get_undefined_link_args() |
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|
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def remove_linkerlike_args(self, args): |
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rm_exact = ('-headerpad_max_install_names',) |
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rm_prefixes = ('-Wl,', '-L',) |
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rm_next = ('-L', '-framework',) |
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ret = [] |
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iargs = iter(args) |
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for arg in iargs: |
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# Remove this argument |
|
if arg in rm_exact: |
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continue |
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# If the argument starts with this, but is not *exactly* this |
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# f.ex., '-L' should match ['-Lfoo'] but not ['-L', 'foo'] |
|
if arg.startswith(rm_prefixes) and arg not in rm_prefixes: |
|
continue |
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# Ignore this argument and the one after it |
|
if arg in rm_next: |
|
next(iargs) |
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continue |
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ret.append(arg) |
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return ret |
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|
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def get_lto_compile_args(self) -> T.List[str]: |
|
return [] |
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|
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def get_lto_link_args(self) -> T.List[str]: |
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return self.linker.get_lto_args() |
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|
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def sanitizer_compile_args(self, value: str) -> T.List[str]: |
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return [] |
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|
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def sanitizer_link_args(self, value: str) -> T.List[str]: |
|
return self.linker.sanitizer_args(value) |
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|
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def get_asneeded_args(self) -> T.List[str]: |
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return self.linker.get_asneeded_args() |
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|
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def bitcode_args(self) -> T.List[str]: |
|
return self.linker.bitcode_args() |
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|
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def get_linker_debug_crt_args(self) -> T.List[str]: |
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return self.linker.get_debug_crt_args() |
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|
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def get_buildtype_linker_args(self, buildtype: str) -> T.List[str]: |
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return self.linker.get_buildtype_args(buildtype) |
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|
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def get_soname_args(self, env: 'Environment', prefix: str, shlib_name: str, |
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suffix: str, soversion: str, |
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darwin_versions: T.Tuple[str, str], |
|
is_shared_module: bool) -> T.List[str]: |
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return self.linker.get_soname_args( |
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env, prefix, shlib_name, suffix, soversion, |
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darwin_versions, is_shared_module) |
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|
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def get_target_link_args(self, target): |
|
return target.link_args |
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|
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def get_dependency_compile_args(self, dep): |
|
return dep.get_compile_args() |
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|
|
def get_dependency_link_args(self, dep): |
|
return dep.get_link_args() |
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|
|
@classmethod |
|
def use_linker_args(cls, linker: str) -> T.List[str]: |
|
"""Get a list of arguments to pass to the compiler to set the linker. |
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""" |
|
return [] |
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|
|
def get_coverage_link_args(self) -> T.List[str]: |
|
return self.linker.get_coverage_args() |
|
|
|
def get_disable_assert_args(self) -> T.List[str]: |
|
return [] |
|
|
|
|
|
def get_largefile_args(compiler): |
|
''' |
|
Enable transparent large-file-support for 32-bit UNIX systems |
|
''' |
|
if not (compiler.info.is_windows() or compiler.info.is_darwin()): |
|
# Enable large-file support unconditionally on all platforms other |
|
# than macOS and Windows. macOS is now 64-bit-only so it doesn't |
|
# need anything special, and Windows doesn't have automatic LFS. |
|
# You must use the 64-bit counterparts explicitly. |
|
# glibc, musl, and uclibc, and all BSD libcs support this. On Android, |
|
# support for transparent LFS is available depending on the version of |
|
# Bionic: https://github.com/android/platform_bionic#32-bit-abi-bugs |
|
# https://code.google.com/p/android/issues/detail?id=64613 |
|
# |
|
# If this breaks your code, fix it! It's been 20+ years! |
|
return ['-D_FILE_OFFSET_BITS=64'] |
|
# We don't enable -D_LARGEFILE64_SOURCE since that enables |
|
# transitionary features and must be enabled by programs that use |
|
# those features explicitly. |
|
return [] |
|
|
|
|
|
def get_args_from_envvars(lang: str, |
|
for_machine: MachineChoice, |
|
is_cross: bool, |
|
use_linker_args: bool) -> T.Tuple[T.List[str], T.List[str]]: |
|
""" |
|
Returns a tuple of (compile_flags, link_flags) for the specified language |
|
from the inherited environment |
|
""" |
|
if lang not in cflags_mapping: |
|
return [], [] |
|
|
|
compile_flags = [] # type: T.List[str] |
|
link_flags = [] # type: T.List[str] |
|
|
|
env_compile_flags = get_env_var(for_machine, is_cross, cflags_mapping[lang]) |
|
if env_compile_flags is not None: |
|
compile_flags += split_args(env_compile_flags) |
|
|
|
# Link flags (same for all languages) |
|
if lang in languages_using_ldflags: |
|
link_flags += LinkerEnvVarsMixin.get_args_from_envvars(for_machine, is_cross) |
|
if use_linker_args: |
|
# When the compiler is used as a wrapper around the linker (such as |
|
# with GCC and Clang), the compile flags can be needed while linking |
|
# too. This is also what Autotools does. However, we don't want to do |
|
# this when the linker is stand-alone such as with MSVC C/C++, etc. |
|
link_flags = compile_flags + link_flags |
|
|
|
# Pre-processor flags for certain languages |
|
if lang in languages_using_cppflags: |
|
env_preproc_flags = get_env_var(for_machine, is_cross, 'CPPFLAGS') |
|
if env_preproc_flags is not None: |
|
compile_flags += split_args(env_preproc_flags) |
|
|
|
return compile_flags, link_flags |
|
|
|
|
|
def get_global_options(lang: str, |
|
comp: T.Type[Compiler], |
|
for_machine: MachineChoice, |
|
is_cross: bool, |
|
properties: Properties) -> T.Dict[str, coredata.UserOption]: |
|
"""Retreive options that apply to all compilers for a given language.""" |
|
description = 'Extra arguments passed to the {}'.format(lang) |
|
opts = { |
|
'args': coredata.UserArrayOption( |
|
description + ' compiler', |
|
[], split_args=True, user_input=True, allow_dups=True), |
|
'link_args': coredata.UserArrayOption( |
|
description + ' linker', |
|
[], split_args=True, user_input=True, allow_dups=True), |
|
} |
|
|
|
# Get from env vars. |
|
compile_args, link_args = get_args_from_envvars( |
|
lang, |
|
for_machine, |
|
is_cross, |
|
comp.INVOKES_LINKER) |
|
|
|
for k, o in opts.items(): |
|
user_k = lang + '_' + k |
|
if user_k in properties: |
|
# Get from configuration files. |
|
o.set_value(properties[user_k]) |
|
elif k == 'args': |
|
o.set_value(compile_args) |
|
elif k == 'link_args': |
|
o.set_value(link_args) |
|
|
|
return opts
|
|
|