The Meson Build System http://mesonbuild.com/
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

3114 lines
133 KiB

# 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.
from __future__ import annotations
from collections import defaultdict, OrderedDict
from dataclasses import dataclass, field, InitVar
from functools import lru_cache
import abc
import hashlib
import itertools, pathlib
import os
import pickle
import re
import textwrap
import typing as T
from . import coredata
from . import environment
from . import dependencies
from . import mlog
from . import programs
from .mesonlib import (
HoldableObject, SecondLevelHolder,
File, MesonException, MachineChoice, PerMachine, OrderedSet, listify,
extract_as_list, typeslistify, stringlistify, classify_unity_sources,
get_filenames_templates_dict, substitute_values, has_path_sep,
OptionKey, PerMachineDefaultable, OptionOverrideProxy,
MesonBugException, EnvironmentVariables, pickle_load,
)
from .compilers import (
is_object, clink_langs, sort_clink, all_languages,
is_known_suffix, detect_static_linker
)
from .interpreterbase import FeatureNew, FeatureDeprecated
if T.TYPE_CHECKING:
from typing_extensions import Literal
from ._typing import ImmutableListProtocol
from .backend.backends import Backend, ExecutableSerialisation
from .compilers import Compiler
from .interpreter.interpreter import Test, SourceOutputs, Interpreter
from .interpreterbase import SubProject
from .linkers.linkers import StaticLinker
from .mesonlib import FileMode, FileOrString
from .modules import ModuleState
from .mparser import BaseNode
from .wrap import WrapMode
GeneratedTypes = T.Union['CustomTarget', 'CustomTargetIndex', 'GeneratedList']
LibTypes = T.Union['SharedLibrary', 'StaticLibrary', 'CustomTarget', 'CustomTargetIndex']
BuildTargetTypes = T.Union['BuildTarget', 'CustomTarget', 'CustomTargetIndex']
ObjectTypes = T.Union[str, 'File', 'ExtractedObjects', 'GeneratedTypes']
pch_kwargs = {'c_pch', 'cpp_pch'}
lang_arg_kwargs = {f'{lang}_args' for lang in all_languages}
lang_arg_kwargs |= {
'd_import_dirs',
'd_unittest',
'd_module_versions',
'd_debug',
}
vala_kwargs = {'vala_header', 'vala_gir', 'vala_vapi'}
rust_kwargs = {'rust_crate_type', 'rust_dependency_map'}
cs_kwargs = {'resources', 'cs_args'}
buildtarget_kwargs = {
'build_by_default',
'build_rpath',
'dependencies',
'extra_files',
'gui_app',
'link_with',
'link_whole',
'link_args',
'link_depends',
'implicit_include_directories',
'include_directories',
'install',
'install_rpath',
'install_dir',
'install_mode',
'install_tag',
'name_prefix',
'name_suffix',
'native',
'objects',
'override_options',
'sources',
'gnu_symbol_visibility',
'link_language',
'win_subsystem',
}
known_build_target_kwargs = (
buildtarget_kwargs |
lang_arg_kwargs |
pch_kwargs |
vala_kwargs |
rust_kwargs |
cs_kwargs)
known_exe_kwargs = known_build_target_kwargs | {'implib', 'export_dynamic', 'pie'}
known_shlib_kwargs = known_build_target_kwargs | {'version', 'soversion', 'vs_module_defs', 'darwin_versions'}
known_shmod_kwargs = known_build_target_kwargs | {'vs_module_defs'}
known_stlib_kwargs = known_build_target_kwargs | {'pic', 'prelink'}
known_jar_kwargs = known_exe_kwargs | {'main_class', 'java_resources'}
def _process_install_tag(install_tag: T.Optional[T.List[T.Optional[str]]],
num_outputs: int) -> T.List[T.Optional[str]]:
_install_tag: T.List[T.Optional[str]]
if not install_tag:
_install_tag = [None] * num_outputs
elif len(install_tag) == 1:
_install_tag = install_tag * num_outputs
else:
_install_tag = install_tag
return _install_tag
@lru_cache(maxsize=None)
def get_target_macos_dylib_install_name(ld) -> str:
name = ['@rpath/', ld.prefix, ld.name]
if ld.soversion is not None:
name.append('.' + ld.soversion)
name.append('.dylib')
return ''.join(name)
class InvalidArguments(MesonException):
pass
@dataclass(eq=False)
class DependencyOverride(HoldableObject):
dep: dependencies.Dependency
node: 'BaseNode'
explicit: bool = True
@dataclass(eq=False)
class Headers(HoldableObject):
sources: T.List[File]
install_subdir: T.Optional[str]
custom_install_dir: T.Optional[str]
custom_install_mode: 'FileMode'
subproject: str
# TODO: we really don't need any of these methods, but they're preserved to
# keep APIs relying on them working.
def set_install_subdir(self, subdir: str) -> None:
self.install_subdir = subdir
def get_install_subdir(self) -> T.Optional[str]:
return self.install_subdir
def get_sources(self) -> T.List[File]:
return self.sources
def get_custom_install_dir(self) -> T.Optional[str]:
return self.custom_install_dir
def get_custom_install_mode(self) -> 'FileMode':
return self.custom_install_mode
@dataclass(eq=False)
class Man(HoldableObject):
sources: T.List[File]
custom_install_dir: T.Optional[str]
custom_install_mode: 'FileMode'
subproject: str
locale: T.Optional[str]
def get_custom_install_dir(self) -> T.Optional[str]:
return self.custom_install_dir
def get_custom_install_mode(self) -> 'FileMode':
return self.custom_install_mode
def get_sources(self) -> T.List['File']:
return self.sources
@dataclass(eq=False)
class EmptyDir(HoldableObject):
path: str
install_mode: 'FileMode'
subproject: str
install_tag: T.Optional[str] = None
@dataclass(eq=False)
class InstallDir(HoldableObject):
source_subdir: str
installable_subdir: str
install_dir: str
install_dir_name: str
install_mode: 'FileMode'
exclude: T.Tuple[T.Set[str], T.Set[str]]
strip_directory: bool
subproject: str
from_source_dir: bool = True
install_tag: T.Optional[str] = None
@dataclass(eq=False)
class DepManifest:
version: str
license: T.List[str]
license_files: T.List[T.Tuple[str, File]]
subproject: str
def to_json(self) -> T.Dict[str, T.Union[str, T.List[str]]]:
return {
'version': self.version,
'license': self.license,
'license_files': [l[1].relative_name() for l in self.license_files],
}
# literally everything isn't dataclass stuff
class Build:
"""A class that holds the status of one build including
all dependencies and so on.
"""
def __init__(self, environment: environment.Environment):
self.version = coredata.version
self.project_name = 'name of master project'
self.project_version = None
self.environment = environment
self.projects = {}
self.targets: 'T.OrderedDict[str, T.Union[CustomTarget, BuildTarget]]' = OrderedDict()
self.global_args: PerMachine[T.Dict[str, T.List[str]]] = PerMachine({}, {})
self.global_link_args: PerMachine[T.Dict[str, T.List[str]]] = PerMachine({}, {})
self.projects_args: PerMachine[T.Dict[str, T.Dict[str, T.List[str]]]] = PerMachine({}, {})
self.projects_link_args: PerMachine[T.Dict[str, T.Dict[str, T.List[str]]]] = PerMachine({}, {})
self.tests: T.List['Test'] = []
self.benchmarks: T.List['Test'] = []
self.headers: T.List[Headers] = []
self.man: T.List[Man] = []
self.emptydir: T.List[EmptyDir] = []
self.data: T.List[Data] = []
self.symlinks: T.List[SymlinkData] = []
self.static_linker: PerMachine[StaticLinker] = PerMachine(None, None)
self.subprojects = {}
self.subproject_dir = ''
self.install_scripts: T.List['ExecutableSerialisation'] = []
self.postconf_scripts: T.List['ExecutableSerialisation'] = []
self.dist_scripts: T.List['ExecutableSerialisation'] = []
self.install_dirs: T.List[InstallDir] = []
self.dep_manifest_name: T.Optional[str] = None
self.dep_manifest: T.Dict[str, DepManifest] = {}
self.stdlibs = PerMachine({}, {})
self.test_setups: T.Dict[str, TestSetup] = {}
self.test_setup_default_name = None
self.find_overrides: T.Dict[str, T.Union['Executable', programs.ExternalProgram, programs.OverrideProgram]] = {}
self.searched_programs: T.Set[str] = set() # The list of all programs that have been searched for.
# If we are doing a cross build we need two caches, if we're doing a
# build == host compilation the both caches should point to the same place.
self.dependency_overrides: PerMachine[T.Dict[T.Tuple, DependencyOverride]] = PerMachineDefaultable.default(
environment.is_cross_build(), {}, {})
self.devenv: T.List[EnvironmentVariables] = []
self.modules: T.List[str] = []
def get_build_targets(self):
build_targets = OrderedDict()
for name, t in self.targets.items():
if isinstance(t, BuildTarget):
build_targets[name] = t
return build_targets
def get_custom_targets(self):
custom_targets = OrderedDict()
for name, t in self.targets.items():
if isinstance(t, CustomTarget):
custom_targets[name] = t
return custom_targets
def copy(self) -> Build:
other = Build(self.environment)
for k, v in self.__dict__.items():
if isinstance(v, (list, dict, set, OrderedDict)):
other.__dict__[k] = v.copy()
else:
other.__dict__[k] = v
return other
def merge(self, other: Build) -> None:
for k, v in other.__dict__.items():
self.__dict__[k] = v
def ensure_static_linker(self, compiler: Compiler) -> None:
if self.static_linker[compiler.for_machine] is None and compiler.needs_static_linker():
self.static_linker[compiler.for_machine] = detect_static_linker(self.environment, compiler)
def get_project(self):
return self.projects['']
def get_subproject_dir(self):
return self.subproject_dir
def get_targets(self) -> 'T.OrderedDict[str, T.Union[CustomTarget, BuildTarget]]':
return self.targets
def get_tests(self) -> T.List['Test']:
return self.tests
def get_benchmarks(self) -> T.List['Test']:
return self.benchmarks
def get_headers(self) -> T.List['Headers']:
return self.headers
def get_man(self) -> T.List['Man']:
return self.man
def get_data(self) -> T.List['Data']:
return self.data
def get_symlinks(self) -> T.List['SymlinkData']:
return self.symlinks
def get_emptydir(self) -> T.List['EmptyDir']:
return self.emptydir
def get_install_subdirs(self) -> T.List['InstallDir']:
return self.install_dirs
def get_global_args(self, compiler: 'Compiler', for_machine: 'MachineChoice') -> T.List[str]:
d = self.global_args[for_machine]
return d.get(compiler.get_language(), [])
def get_project_args(self, compiler: 'Compiler', project: str, for_machine: 'MachineChoice') -> T.List[str]:
d = self.projects_args[for_machine]
args = d.get(project)
if not args:
return []
return args.get(compiler.get_language(), [])
def get_global_link_args(self, compiler: 'Compiler', for_machine: 'MachineChoice') -> T.List[str]:
d = self.global_link_args[for_machine]
return d.get(compiler.get_language(), [])
def get_project_link_args(self, compiler: 'Compiler', project: str, for_machine: 'MachineChoice') -> T.List[str]:
d = self.projects_link_args[for_machine]
link_args = d.get(project)
if not link_args:
return []
return link_args.get(compiler.get_language(), [])
@dataclass(eq=False)
class IncludeDirs(HoldableObject):
"""Internal representation of an include_directories call."""
curdir: str
incdirs: T.List[str]
is_system: bool
# Interpreter has validated that all given directories
# actually exist.
extra_build_dirs: T.List[str] = field(default_factory=list)
def __repr__(self) -> str:
r = '<{} {}/{}>'
return r.format(self.__class__.__name__, self.curdir, self.incdirs)
def get_curdir(self) -> str:
return self.curdir
def get_incdirs(self) -> T.List[str]:
return self.incdirs
def get_extra_build_dirs(self) -> T.List[str]:
return self.extra_build_dirs
def to_string_list(self, sourcedir: str, builddir: T.Optional[str] = None) -> T.List[str]:
"""Convert IncludeDirs object to a list of strings.
:param sourcedir: The absolute source directory
:param builddir: The absolute build directory, option, build dir will not
be added if this is unset
:returns: A list of strings (without compiler argument)
"""
strlist: T.List[str] = []
for idir in self.incdirs:
strlist.append(os.path.join(sourcedir, self.curdir, idir))
if builddir:
strlist.append(os.path.join(builddir, self.curdir, idir))
return strlist
@dataclass(eq=False)
class ExtractedObjects(HoldableObject):
'''
Holds a list of sources for which the objects must be extracted
'''
target: 'BuildTarget'
srclist: T.List[File] = field(default_factory=list)
genlist: T.List['GeneratedTypes'] = field(default_factory=list)
objlist: T.List[T.Union[str, 'File', 'ExtractedObjects']] = field(default_factory=list)
recursive: bool = True
pch: bool = False
def __post_init__(self) -> None:
if self.target.is_unity:
self.check_unity_compatible()
def __repr__(self) -> str:
r = '<{0} {1!r}: {2}>'
return r.format(self.__class__.__name__, self.target.name, self.srclist)
@staticmethod
def get_sources(sources: T.Sequence['FileOrString'], generated_sources: T.Sequence['GeneratedTypes']) -> T.List['FileOrString']:
# Merge sources and generated sources
sources = list(sources)
for gensrc in generated_sources:
for s in gensrc.get_outputs():
# We cannot know the path where this source will be generated,
# but all we need here is the file extension to determine the
# compiler.
sources.append(s)
# Filter out headers and all non-source files
return [s for s in sources if environment.is_source(s)]
def classify_all_sources(self, sources: T.List[FileOrString], generated_sources: T.Sequence['GeneratedTypes']) -> T.Dict['Compiler', T.List['FileOrString']]:
sources_ = self.get_sources(sources, generated_sources)
return classify_unity_sources(self.target.compilers.values(), sources_)
def check_unity_compatible(self) -> None:
# Figure out if the extracted object list is compatible with a Unity
# build. When we're doing a Unified build, we go through the sources,
# and create a single source file from each subset of the sources that
# can be compiled with a specific compiler. Then we create one object
# from each unified source file. So for each compiler we can either
# extra all its sources or none.
cmpsrcs = self.classify_all_sources(self.target.sources, self.target.generated)
extracted_cmpsrcs = self.classify_all_sources(self.srclist, self.genlist)
for comp, srcs in extracted_cmpsrcs.items():
if set(srcs) != set(cmpsrcs[comp]):
raise MesonException('Single object files cannot be extracted '
'in Unity builds. You can only extract all '
'the object files for each compiler at once.')
@dataclass(eq=False, order=False)
class StructuredSources(HoldableObject):
"""A container for sources in languages that use filesystem hierarchy.
Languages like Rust and Cython rely on the layout of files in the filesystem
as part of the compiler implementation. This structure allows us to
represent the required filesystem layout.
"""
sources: T.DefaultDict[str, T.List[T.Union[File, CustomTarget, CustomTargetIndex, GeneratedList]]] = field(
default_factory=lambda: defaultdict(list))
def __add__(self, other: StructuredSources) -> StructuredSources:
sources = self.sources.copy()
for k, v in other.sources.items():
sources[k].extend(v)
return StructuredSources(sources)
def __bool__(self) -> bool:
return bool(self.sources)
def first_file(self) -> T.Union[File, CustomTarget, CustomTargetIndex, GeneratedList]:
"""Get the first source in the root
:return: The first source in the root
"""
return self.sources[''][0]
def as_list(self) -> T.List[T.Union[File, CustomTarget, CustomTargetIndex, GeneratedList]]:
return list(itertools.chain.from_iterable(self.sources.values()))
def needs_copy(self) -> bool:
"""Do we need to create a structure in the build directory.
This allows us to avoid making copies if the structures exists in the
source dir. Which could happen in situations where a generated source
only exists in some configurations
"""
for files in self.sources.values():
for f in files:
if isinstance(f, File):
if f.is_built:
return True
else:
return True
return False
@dataclass(eq=False)
class Target(HoldableObject, metaclass=abc.ABCMeta):
name: str
subdir: str
subproject: 'SubProject'
build_by_default: bool
for_machine: MachineChoice
environment: environment.Environment
install: bool = False
build_always_stale: bool = False
extra_files: T.List[File] = field(default_factory=list)
override_options: InitVar[T.Optional[T.Dict[OptionKey, str]]] = None
@abc.abstractproperty
def typename(self) -> str:
pass
@abc.abstractmethod
def type_suffix(self) -> str:
pass
def __post_init__(self, overrides: T.Optional[T.Dict[OptionKey, str]]) -> None:
if overrides:
ovr = {k.evolve(machine=self.for_machine) if k.lang else k: v
for k, v in overrides.items()}
else:
ovr = {}
self.options = OptionOverrideProxy(ovr, self.environment.coredata.options, self.subproject)
# XXX: this should happen in the interpreter
if has_path_sep(self.name):
# Fix failing test 53 when this becomes an error.
mlog.warning(textwrap.dedent(f'''\
Target "{self.name}" has a path separator in its name.
This is not supported, it can cause unexpected failures and will become
a hard error in the future.'''))
# dataclass comparators?
def __lt__(self, other: object) -> bool:
if not isinstance(other, Target):
return NotImplemented
return self.get_id() < other.get_id()
def __le__(self, other: object) -> bool:
if not isinstance(other, Target):
return NotImplemented
return self.get_id() <= other.get_id()
def __gt__(self, other: object) -> bool:
if not isinstance(other, Target):
return NotImplemented
return self.get_id() > other.get_id()
def __ge__(self, other: object) -> bool:
if not isinstance(other, Target):
return NotImplemented
return self.get_id() >= other.get_id()
def get_default_install_dir(self) -> T.Tuple[str, str]:
raise NotImplementedError
def get_custom_install_dir(self) -> T.List[T.Union[str, Literal[False]]]:
raise NotImplementedError
def get_install_dir(self) -> T.Tuple[T.List[T.Union[str, Literal[False]]], str, Literal[False]]:
# Find the installation directory.
default_install_dir, default_install_dir_name = self.get_default_install_dir()
outdirs = self.get_custom_install_dir()
if outdirs and outdirs[0] != default_install_dir and outdirs[0] is not True:
# Either the value is set to a non-default value, or is set to
# False (which means we want this specific output out of many
# outputs to not be installed).
custom_install_dir = True
install_dir_names = [getattr(i, 'optname', None) for i in outdirs]
else:
custom_install_dir = False
# if outdirs is empty we need to set to something, otherwise we set
# only the first value to the default.
if outdirs:
outdirs[0] = default_install_dir
else:
outdirs = [default_install_dir]
install_dir_names = [default_install_dir_name] * len(outdirs)
return outdirs, install_dir_names, custom_install_dir
def get_basename(self) -> str:
return self.name
def get_subdir(self) -> str:
return self.subdir
def get_typename(self) -> str:
return self.typename
@staticmethod
def _get_id_hash(target_id: str) -> str:
# We don't really need cryptographic security here.
# Small-digest hash function with unlikely collision is good enough.
h = hashlib.sha256()
h.update(target_id.encode(encoding='utf-8', errors='replace'))
# This ID should be case-insensitive and should work in Visual Studio,
# e.g. it should not start with leading '-'.
return h.hexdigest()[:7]
@staticmethod
def construct_id_from_path(subdir: str, name: str, type_suffix: str) -> str:
"""Construct target ID from subdir, name and type suffix.
This helper function is made public mostly for tests."""
# This ID must also be a valid file name on all OSs.
# It should also avoid shell metacharacters for obvious
# reasons. '@' is not used as often as '_' in source code names.
# In case of collisions consider using checksums.
# FIXME replace with assert when slash in names is prohibited
name_part = name.replace('/', '@').replace('\\', '@')
assert not has_path_sep(type_suffix)
my_id = name_part + type_suffix
if subdir:
subdir_part = Target._get_id_hash(subdir)
# preserve myid for better debuggability
return subdir_part + '@@' + my_id
return my_id
def get_id(self) -> str:
return self.construct_id_from_path(
self.subdir, self.name, self.type_suffix())
def process_kwargs_base(self, kwargs: T.Dict[str, T.Any]) -> None:
if 'build_by_default' in kwargs:
self.build_by_default = kwargs['build_by_default']
if not isinstance(self.build_by_default, bool):
raise InvalidArguments('build_by_default must be a boolean value.')
elif kwargs.get('install', False):
# For backward compatibility, if build_by_default is not explicitly
# set, use the value of 'install' if it's enabled.
self.build_by_default = True
self.set_option_overrides(self.parse_overrides(kwargs))
def set_option_overrides(self, option_overrides: T.Dict[OptionKey, str]) -> None:
self.options.overrides = {}
for k, v in option_overrides.items():
if k.lang:
self.options.overrides[k.evolve(machine=self.for_machine)] = v
else:
self.options.overrides[k] = v
def get_options(self) -> OptionOverrideProxy:
return self.options
def get_option(self, key: 'OptionKey') -> T.Union[str, int, bool, 'WrapMode']:
# We don't actually have wrapmode here to do an assert, so just do a
# cast, we know what's in coredata anyway.
# TODO: if it's possible to annotate get_option or validate_option_value
# in the future we might be able to remove the cast here
return T.cast('T.Union[str, int, bool, WrapMode]', self.options[key].value)
@staticmethod
def parse_overrides(kwargs: T.Dict[str, T.Any]) -> T.Dict[OptionKey, str]:
opts = kwargs.get('override_options', [])
# In this case we have an already parsed and ready to go dictionary
# provided by typed_kwargs
if isinstance(opts, dict):
return T.cast('T.Dict[OptionKey, str]', opts)
result: T.Dict[OptionKey, str] = {}
overrides = stringlistify(opts)
for o in overrides:
if '=' not in o:
raise InvalidArguments('Overrides must be of form "key=value"')
k, v = o.split('=', 1)
key = OptionKey.from_string(k.strip())
v = v.strip()
result[key] = v
return result
def is_linkable_target(self) -> bool:
return False
def get_outputs(self) -> T.List[str]:
return []
def should_install(self) -> bool:
return False
class BuildTarget(Target):
known_kwargs = known_build_target_kwargs
install_dir: T.List[T.Union[str, Literal[False]]]
# This set contains all the languages a linker can link natively
# without extra flags. For instance, nvcc (cuda) can link C++
# without injecting -lc++/-lstdc++, see
# https://github.com/mesonbuild/meson/issues/10570
_MASK_LANGS: T.FrozenSet[T.Tuple[str, str]] = frozenset([
# (language, linker)
('cpp', 'cuda'),
])
def __init__(
self,
name: str,
subdir: str,
subproject: SubProject,
for_machine: MachineChoice,
sources: T.List['SourceOutputs'],
structured_sources: T.Optional[StructuredSources],
objects: T.List[ObjectTypes],
environment: environment.Environment,
compilers: T.Dict[str, 'Compiler'],
kwargs):
super().__init__(name, subdir, subproject, True, for_machine, environment)
self.all_compilers = compilers
self.compilers = OrderedDict() # type: OrderedDict[str, Compiler]
self.objects: T.List[ObjectTypes] = []
self.structured_sources = structured_sources
self.external_deps: T.List[dependencies.Dependency] = []
self.include_dirs: T.List['IncludeDirs'] = []
self.link_language = kwargs.get('link_language')
self.link_targets: T.List[LibTypes] = []
self.link_whole_targets: T.List[T.Union[StaticLibrary, CustomTarget, CustomTargetIndex]] = []
self.link_depends = []
self.added_deps = set()
self.name_prefix_set = False
self.name_suffix_set = False
self.filename = 'no_name'
# The list of all files outputted by this target. Useful in cases such
# as Vala which generates .vapi and .h besides the compiled output.
self.outputs = [self.filename]
self.need_install = False
self.pch: T.Dict[str, T.List[str]] = {}
self.extra_args: T.Dict[str, T.List['FileOrString']] = {}
self.sources: T.List[File] = []
self.generated: T.List['GeneratedTypes'] = []
self.extra_files: T.List[File] = []
self.d_features = defaultdict(list)
self.pic = False
self.pie = False
# Track build_rpath entries so we can remove them at install time
self.rpath_dirs_to_remove: T.Set[bytes] = set()
self.process_sourcelist(sources)
# Objects can be:
# 1. Preexisting objects provided by the user with the `objects:` kwarg
# 2. Compiled objects created by and extracted from another target
self.process_objectlist(objects)
self.process_kwargs(kwargs)
self.missing_languages = self.process_compilers()
# self.link_targets and self.link_whole_targets contains libraries from
# dependencies (see add_deps()). They have not been processed yet because
# we have to call process_compilers() first and we need to process libraries
# from link_with and link_whole first.
# See https://github.com/mesonbuild/meson/pull/11957#issuecomment-1629243208.
link_targets = extract_as_list(kwargs, 'link_with') + self.link_targets
link_whole_targets = extract_as_list(kwargs, 'link_whole') + self.link_whole_targets
self.link_targets.clear()
self.link_whole_targets.clear()
self.link(link_targets)
self.link_whole(link_whole_targets)
if not any([self.sources, self.generated, self.objects, self.link_whole_targets, self.structured_sources,
kwargs.pop('_allow_no_sources', False)]):
mlog.warning(f'Build target {name} has no sources. '
'This was never supposed to be allowed but did because of a bug, '
'support will be removed in a future release of Meson')
self.check_unknown_kwargs(kwargs)
self.validate_install()
self.check_module_linking()
def post_init(self) -> None:
''' Initialisations and checks requiring the final list of compilers to be known
'''
self.validate_sources()
if self.structured_sources and any([self.sources, self.generated]):
raise MesonException('cannot mix structured sources and unstructured sources')
if self.structured_sources and 'rust' not in self.compilers:
raise MesonException('structured sources are only supported in Rust targets')
if self.uses_rust():
# relocation-model=pic is rustc's default and Meson does not
# currently have a way to disable PIC.
self.pic = True
def __repr__(self):
repr_str = "<{0} {1}: {2}>"
return repr_str.format(self.__class__.__name__, self.get_id(), self.filename)
def __str__(self):
return f"{self.name}"
@property
def is_unity(self) -> bool:
unity_opt = self.get_option(OptionKey('unity'))
return unity_opt == 'on' or (unity_opt == 'subprojects' and self.subproject != '')
def validate_install(self):
if self.for_machine is MachineChoice.BUILD and self.need_install:
if self.environment.is_cross_build():
raise InvalidArguments('Tried to install a target for the build machine in a cross build.')
else:
mlog.warning('Installing target build for the build machine. This will fail in a cross build.')
def check_unknown_kwargs(self, kwargs):
# Override this method in derived classes that have more
# keywords.
self.check_unknown_kwargs_int(kwargs, self.known_kwargs)
def check_unknown_kwargs_int(self, kwargs, known_kwargs):
unknowns = []
for k in kwargs:
if k not in known_kwargs:
unknowns.append(k)
if len(unknowns) > 0:
mlog.warning('Unknown keyword argument(s) in target {}: {}.'.format(self.name, ', '.join(unknowns)))
def process_objectlist(self, objects):
assert isinstance(objects, list)
for s in objects:
if isinstance(s, (str, File, ExtractedObjects)):
self.objects.append(s)
elif isinstance(s, (CustomTarget, CustomTargetIndex, GeneratedList)):
non_objects = [o for o in s.get_outputs() if not is_object(o)]
if non_objects:
raise InvalidArguments(f'Generated file {non_objects[0]} in the \'objects\' kwarg is not an object.')
self.generated.append(s)
else:
raise InvalidArguments(f'Bad object of type {type(s).__name__!r} in target {self.name!r}.')
def process_sourcelist(self, sources: T.List['SourceOutputs']) -> None:
"""Split sources into generated and static sources.
Sources can be:
1. Preexisting source files in the source tree (static)
2. Preexisting sources generated by configure_file in the build tree.
(static as they are only regenerated if meson itself is regenerated)
3. Sources files generated by another target or a Generator (generated)
"""
added_sources: T.Set[File] = set() # If the same source is defined multiple times, use it only once.
for s in sources:
if isinstance(s, File):
if s not in added_sources:
self.sources.append(s)
added_sources.add(s)
elif isinstance(s, (CustomTarget, CustomTargetIndex, GeneratedList)):
self.generated.append(s)
@staticmethod
def can_compile_remove_sources(compiler: 'Compiler', sources: T.List['FileOrString']) -> bool:
removed = False
for s in sources[:]:
if compiler.can_compile(s):
sources.remove(s)
removed = True
return removed
def process_compilers_late(self):
"""Processes additional compilers after kwargs have been evaluated.
This can add extra compilers that might be required by keyword
arguments, such as link_with or dependencies. It will also try to guess
which compiler to use if one hasn't been selected already.
"""
for lang in self.missing_languages:
self.compilers[lang] = self.all_compilers[lang]
# did user override clink_langs for this target?
link_langs = [self.link_language] if self.link_language else clink_langs
# If this library is linked against another library we need to consider
# the languages of those libraries as well.
if self.link_targets or self.link_whole_targets:
for t in itertools.chain(self.link_targets, self.link_whole_targets):
if isinstance(t, (CustomTarget, CustomTargetIndex)):
continue # We can't know anything about these.
for name, compiler in t.compilers.items():
if name in link_langs and name not in self.compilers:
self.compilers[name] = compiler
if not self.compilers:
# No source files or parent targets, target consists of only object
# files of unknown origin. Just add the first clink compiler
# that we have and hope that it can link these objects
for lang in link_langs:
if lang in self.all_compilers:
self.compilers[lang] = self.all_compilers[lang]
break
# Now that we have the final list of compilers we can sort it according
# to clink_langs and do sanity checks.
self.compilers = OrderedDict(sorted(self.compilers.items(),
key=lambda t: sort_clink(t[0])))
self.post_init()
def process_compilers(self) -> T.List[str]:
'''
Populate self.compilers, which is the list of compilers that this
target will use for compiling all its sources.
We also add compilers that were used by extracted objects to simplify
dynamic linker determination.
Returns a list of missing languages that we can add implicitly, such as
C/C++ compiler for cython.
'''
missing_languages: T.List[str] = []
if not any([self.sources, self.generated, self.objects, self.structured_sources]):
return missing_languages
# Preexisting sources
sources: T.List['FileOrString'] = list(self.sources)
generated = self.generated.copy()
if self.structured_sources:
for v in self.structured_sources.sources.values():
for src in v:
if isinstance(src, (str, File)):
sources.append(src)
else:
generated.append(src)
# All generated sources
for gensrc in generated:
for s in gensrc.get_outputs():
# Generated objects can't be compiled, so don't use them for
# compiler detection. If our target only has generated objects,
# we will fall back to using the first c-like compiler we find,
# which is what we need.
if not is_object(s):
sources.append(s)
for d in self.external_deps:
for s in d.sources:
if isinstance(s, (str, File)):
sources.append(s)
# Sources that were used to create our extracted objects
for o in self.objects:
if not isinstance(o, ExtractedObjects):
continue
compsrcs = o.classify_all_sources(o.srclist, [])
for comp in compsrcs:
# Don't add Vala sources since that will pull in the Vala
# compiler even though we will never use it since we are
# dealing with compiled C code.
if comp.language == 'vala':
continue
if comp.language not in self.compilers:
self.compilers[comp.language] = comp
if sources:
# For each source, try to add one compiler that can compile it.
#
# If it has a suffix that belongs to a known language, we must have
# a compiler for that language.
#
# Otherwise, it's ok if no compilers can compile it, because users
# are expected to be able to add arbitrary non-source files to the
# sources list
for s in sources:
for lang, compiler in self.all_compilers.items():
if compiler.can_compile(s):
if lang not in self.compilers:
self.compilers[lang] = compiler
break
else:
if is_known_suffix(s):
path = pathlib.Path(str(s)).as_posix()
m = f'No {self.for_machine.get_lower_case_name()} machine compiler for {path!r}'
raise MesonException(m)
# If all our sources are Vala, our target also needs the C compiler but
# it won't get added above.
if 'vala' in self.compilers and 'c' not in self.compilers:
self.compilers['c'] = self.all_compilers['c']
if 'cython' in self.compilers:
key = OptionKey('language', machine=self.for_machine, lang='cython')
value = self.get_option(key)
try:
self.compilers[value] = self.all_compilers[value]
except KeyError:
missing_languages.append(value)
return missing_languages
def validate_sources(self):
if len(self.compilers) > 1 and any(lang in self.compilers for lang in ['cs', 'java']):
langs = ', '.join(self.compilers.keys())
raise InvalidArguments(f'Cannot mix those languages into a target: {langs}')
def process_link_depends(self, sources):
"""Process the link_depends keyword argument.
This is designed to handle strings, Files, and the output of Custom
Targets. Notably it doesn't handle generator() returned objects, since
adding them as a link depends would inherently cause them to be
generated twice, since the output needs to be passed to the ld_args and
link_depends.
"""
sources = listify(sources)
for s in sources:
if isinstance(s, File):
self.link_depends.append(s)
elif isinstance(s, str):
self.link_depends.append(
File.from_source_file(self.environment.source_dir, self.subdir, s))
elif hasattr(s, 'get_outputs'):
self.link_depends.append(s)
else:
raise InvalidArguments(
'Link_depends arguments must be strings, Files, '
'or a Custom Target, or lists thereof.')
def extract_objects(self, srclist: T.List[T.Union['FileOrString', 'GeneratedTypes']]) -> ExtractedObjects:
sources_set = set(self.sources)
generated_set = set(self.generated)
obj_src: T.List['File'] = []
obj_gen: T.List['GeneratedTypes'] = []
for src in srclist:
if isinstance(src, (str, File)):
if isinstance(src, str):
src = File(False, self.subdir, src)
else:
FeatureNew.single_use('File argument for extract_objects', '0.50.0', self.subproject)
if src not in sources_set:
raise MesonException(f'Tried to extract unknown source {src}.')
obj_src.append(src)
elif isinstance(src, (CustomTarget, CustomTargetIndex, GeneratedList)):
FeatureNew.single_use('Generated sources for extract_objects', '0.61.0', self.subproject)
target = src.target if isinstance(src, CustomTargetIndex) else src
if src not in generated_set and target not in generated_set:
raise MesonException(f'Tried to extract unknown source {target.get_basename()}.')
obj_gen.append(src)
else:
raise MesonException(f'Object extraction arguments must be strings, Files or targets (got {type(src).__name__}).')
return ExtractedObjects(self, obj_src, obj_gen)
def extract_all_objects(self, recursive: bool = True) -> ExtractedObjects:
return ExtractedObjects(self, self.sources, self.generated, self.objects,
recursive, pch=True)
def get_all_link_deps(self) -> ImmutableListProtocol[BuildTargetTypes]:
return self.get_transitive_link_deps()
@lru_cache(maxsize=None)
def get_transitive_link_deps(self) -> ImmutableListProtocol[BuildTargetTypes]:
result: T.List[Target] = []
for i in self.link_targets:
result += i.get_all_link_deps()
return result
def get_link_deps_mapping(self, prefix: str) -> T.Mapping[str, str]:
return self.get_transitive_link_deps_mapping(prefix)
@lru_cache(maxsize=None)
def get_transitive_link_deps_mapping(self, prefix: str) -> T.Mapping[str, str]:
result: T.Dict[str, str] = {}
for i in self.link_targets:
mapping = i.get_link_deps_mapping(prefix)
#we are merging two dictionaries, while keeping the earlier one dominant
result_tmp = mapping.copy()
result_tmp.update(result)
result = result_tmp
return result
@lru_cache(maxsize=None)
def get_link_dep_subdirs(self) -> T.AbstractSet[str]:
result: OrderedSet[str] = OrderedSet()
for i in self.link_targets:
if not isinstance(i, StaticLibrary):
result.add(i.get_subdir())
result.update(i.get_link_dep_subdirs())
return result
def get_default_install_dir(self) -> T.Tuple[str, str]:
return self.environment.get_libdir(), '{libdir}'
def get_custom_install_dir(self) -> T.List[T.Union[str, Literal[False]]]:
return self.install_dir
def get_custom_install_mode(self) -> T.Optional['FileMode']:
return self.install_mode
def process_kwargs(self, kwargs):
self.process_kwargs_base(kwargs)
self.original_kwargs = kwargs
kwargs.get('modules', [])
self.need_install = kwargs.get('install', self.need_install)
for lang in all_languages:
lang_args = extract_as_list(kwargs, f'{lang}_args')
self.add_compiler_args(lang, lang_args)
self.add_pch('c', extract_as_list(kwargs, 'c_pch'))
self.add_pch('cpp', extract_as_list(kwargs, 'cpp_pch'))
if not isinstance(self, Executable) or kwargs.get('export_dynamic', False):
self.vala_header = kwargs.get('vala_header', self.name + '.h')
self.vala_vapi = kwargs.get('vala_vapi', self.name + '.vapi')
self.vala_gir = kwargs.get('vala_gir', None)
dfeatures = defaultdict(list)
dfeature_unittest = kwargs.get('d_unittest', False)
if dfeature_unittest:
dfeatures['unittest'] = dfeature_unittest
dfeature_versions = kwargs.get('d_module_versions', [])
if dfeature_versions:
dfeatures['versions'] = dfeature_versions
dfeature_debug = kwargs.get('d_debug', [])
if dfeature_debug:
dfeatures['debug'] = dfeature_debug
if 'd_import_dirs' in kwargs:
dfeature_import_dirs = extract_as_list(kwargs, 'd_import_dirs')
for d in dfeature_import_dirs:
if not isinstance(d, IncludeDirs):
raise InvalidArguments('Arguments to d_import_dirs must be include_directories.')
dfeatures['import_dirs'] = dfeature_import_dirs
if dfeatures:
self.d_features = dfeatures
self.link_args = extract_as_list(kwargs, 'link_args')
for i in self.link_args:
if not isinstance(i, str):
raise InvalidArguments('Link_args arguments must be strings.')
for l in self.link_args:
if '-Wl,-rpath' in l or l.startswith('-rpath'):
mlog.warning(textwrap.dedent('''\
Please do not define rpath with a linker argument, use install_rpath
or build_rpath properties instead.
This will become a hard error in a future Meson release.
'''))
self.process_link_depends(kwargs.get('link_depends', []))
# Target-specific include dirs must be added BEFORE include dirs from
# internal deps (added inside self.add_deps()) to override them.
inclist = extract_as_list(kwargs, 'include_directories')
self.add_include_dirs(inclist)
# Add dependencies (which also have include_directories)
deplist = extract_as_list(kwargs, 'dependencies')
self.add_deps(deplist)
# If an item in this list is False, the output corresponding to
# the list index of that item will not be installed
self.install_dir = typeslistify(kwargs.get('install_dir', []),
(str, bool))
self.install_mode = kwargs.get('install_mode', None)
self.install_tag = stringlistify(kwargs.get('install_tag', [None]))
main_class = kwargs.get('main_class', '')
if not isinstance(main_class, str):
raise InvalidArguments('Main class must be a string')
self.main_class = main_class
if isinstance(self, Executable):
# This kwarg is deprecated. The value of "none" means that the kwarg
# was not specified and win_subsystem should be used instead.
self.gui_app = None
if 'gui_app' in kwargs:
if 'win_subsystem' in kwargs:
raise InvalidArguments('Can specify only gui_app or win_subsystem for a target, not both.')
self.gui_app = kwargs['gui_app']
if not isinstance(self.gui_app, bool):
raise InvalidArguments('Argument gui_app must be boolean.')
self.win_subsystem = self.validate_win_subsystem(kwargs.get('win_subsystem', 'console'))
elif 'gui_app' in kwargs:
raise InvalidArguments('Argument gui_app can only be used on executables.')
elif 'win_subsystem' in kwargs:
raise InvalidArguments('Argument win_subsystem can only be used on executables.')
extra_files = extract_as_list(kwargs, 'extra_files')
for i in extra_files:
assert isinstance(i, File)
if i in self.extra_files:
continue
trial = os.path.join(self.environment.get_source_dir(), i.subdir, i.fname)
if not os.path.isfile(trial):
raise InvalidArguments(f'Tried to add non-existing extra file {i}.')
self.extra_files.append(i)
self.install_rpath: str = kwargs.get('install_rpath', '')
if not isinstance(self.install_rpath, str):
raise InvalidArguments('Install_rpath is not a string.')
self.build_rpath = kwargs.get('build_rpath', '')
if not isinstance(self.build_rpath, str):
raise InvalidArguments('Build_rpath is not a string.')
resources = extract_as_list(kwargs, 'resources')
for r in resources:
if not isinstance(r, str):
raise InvalidArguments('Resource argument is not a string.')
trial = os.path.join(self.environment.get_source_dir(), self.subdir, r)
if not os.path.isfile(trial):
raise InvalidArguments(f'Tried to add non-existing resource {r}.')
self.resources = resources
if 'name_prefix' in kwargs:
name_prefix = kwargs['name_prefix']
if isinstance(name_prefix, list):
if name_prefix:
raise InvalidArguments('name_prefix array must be empty to signify default.')
else:
if not isinstance(name_prefix, str):
raise InvalidArguments('name_prefix must be a string.')
self.prefix = name_prefix
self.name_prefix_set = True
if 'name_suffix' in kwargs:
name_suffix = kwargs['name_suffix']
if isinstance(name_suffix, list):
if name_suffix:
raise InvalidArguments('name_suffix array must be empty to signify default.')
else:
if not isinstance(name_suffix, str):
raise InvalidArguments('name_suffix must be a string.')
if name_suffix == '':
raise InvalidArguments('name_suffix should not be an empty string. '
'If you want meson to use the default behaviour '
'for each platform pass `[]` (empty array)')
self.suffix = name_suffix
self.name_suffix_set = True
if isinstance(self, StaticLibrary):
# You can't disable PIC on OS X. The compiler ignores -fno-PIC.
# PIC is always on for Windows (all code is position-independent
# since library loading is done differently)
m = self.environment.machines[self.for_machine]
if m.is_darwin() or m.is_windows():
self.pic = True
else:
self.pic = self._extract_pic_pie(kwargs, 'pic', 'b_staticpic')
if isinstance(self, Executable) or (isinstance(self, StaticLibrary) and not self.pic):
# Executables must be PIE on Android
if self.environment.machines[self.for_machine].is_android():
self.pie = True
else:
self.pie = self._extract_pic_pie(kwargs, 'pie', 'b_pie')
self.implicit_include_directories = kwargs.get('implicit_include_directories', True)
if not isinstance(self.implicit_include_directories, bool):
raise InvalidArguments('Implicit_include_directories must be a boolean.')
self.gnu_symbol_visibility = kwargs.get('gnu_symbol_visibility', '')
if not isinstance(self.gnu_symbol_visibility, str):
raise InvalidArguments('GNU symbol visibility must be a string.')
if self.gnu_symbol_visibility != '':
permitted = ['default', 'internal', 'hidden', 'protected', 'inlineshidden']
if self.gnu_symbol_visibility not in permitted:
raise InvalidArguments('GNU symbol visibility arg {} not one of: {}'.format(self.gnu_symbol_visibility, ', '.join(permitted)))
rust_dependency_map = kwargs.get('rust_dependency_map', {})
if not isinstance(rust_dependency_map, dict):
raise InvalidArguments(f'Invalid rust_dependency_map "{rust_dependency_map}": must be a dictionary.')
if any(not isinstance(v, str) for v in rust_dependency_map.values()):
raise InvalidArguments(f'Invalid rust_dependency_map "{rust_dependency_map}": must be a dictionary with string values.')
self.rust_dependency_map = rust_dependency_map
def validate_win_subsystem(self, value: str) -> str:
value = value.lower()
if re.fullmatch(r'(boot_application|console|efi_application|efi_boot_service_driver|efi_rom|efi_runtime_driver|native|posix|windows)(,\d+(\.\d+)?)?', value) is None:
raise InvalidArguments(f'Invalid value for win_subsystem: {value}.')
return value
def _extract_pic_pie(self, kwargs, arg: str, option: str):
# Check if we have -fPIC, -fpic, -fPIE, or -fpie in cflags
all_flags = self.extra_args['c'] + self.extra_args['cpp']
if '-f' + arg.lower() in all_flags or '-f' + arg.upper() in all_flags:
mlog.warning(f"Use the '{arg}' kwarg instead of passing '-f{arg}' manually to {self.name!r}")
return True
k = OptionKey(option)
if arg in kwargs:
val = kwargs[arg]
elif k in self.environment.coredata.options:
val = self.environment.coredata.options[k].value
else:
val = False
if not isinstance(val, bool):
raise InvalidArguments(f'Argument {arg} to {self.name!r} must be boolean')
return val
def get_filename(self) -> str:
return self.filename
def get_outputs(self) -> T.List[str]:
return self.outputs
def get_extra_args(self, language):
return self.extra_args.get(language, [])
@lru_cache(maxsize=None)
def get_dependencies(self) -> OrderedSet[Target]:
# Get all targets needed for linking. This includes all link_with and
# link_whole targets, and also all dependencies of static libraries
# recursively. The algorithm here is closely related to what we do in
# get_internal_static_libraries(): Installed static libraries include
# objects from all their dependencies already.
result: OrderedSet[Target] = OrderedSet()
for t in itertools.chain(self.link_targets, self.link_whole_targets):
if t not in result:
result.add(t)
if isinstance(t, StaticLibrary):
t.get_dependencies_recurse(result)
return result
def get_dependencies_recurse(self, result: OrderedSet[Target], include_internals: bool = True) -> None:
# self is always a static library because we don't need to pull dependencies
# of shared libraries. If self is installed (not internal) it already
# include objects extracted from all its internal dependencies so we can
# skip them.
include_internals = include_internals and self.is_internal()
for t in self.link_targets:
if t in result:
continue
if include_internals or not t.is_internal():
result.add(t)
if isinstance(t, StaticLibrary):
t.get_dependencies_recurse(result, include_internals)
for t in self.link_whole_targets:
t.get_dependencies_recurse(result, include_internals)
def get_source_subdir(self):
return self.subdir
def get_sources(self):
return self.sources
def get_objects(self) -> T.List[T.Union[str, 'File', 'ExtractedObjects']]:
return self.objects
def get_generated_sources(self) -> T.List['GeneratedTypes']:
return self.generated
def should_install(self) -> bool:
return self.need_install
def has_pch(self) -> bool:
return bool(self.pch)
def get_pch(self, language: str) -> T.List[str]:
return self.pch.get(language, [])
def get_include_dirs(self) -> T.List['IncludeDirs']:
return self.include_dirs
def add_deps(self, deps):
deps = listify(deps)
for dep in deps:
if dep in self.added_deps:
continue
if isinstance(dep, dependencies.InternalDependency):
# Those parts that are internal.
self.process_sourcelist(dep.sources)
self.extra_files.extend(f for f in dep.extra_files if f not in self.extra_files)
self.add_include_dirs(dep.include_directories, dep.get_include_type())
self.objects.extend(dep.objects)
self.link_targets.extend(dep.libraries)
self.link_whole_targets.extend(dep.whole_libraries)
if dep.get_compile_args() or dep.get_link_args():
# Those parts that are external.
extpart = dependencies.InternalDependency('undefined',
[],
dep.get_compile_args(),
dep.get_link_args(),
[], [], [], [], [], {}, [], [], [])
self.external_deps.append(extpart)
# Deps of deps.
self.add_deps(dep.ext_deps)
elif isinstance(dep, dependencies.Dependency):
if dep not in self.external_deps:
self.external_deps.append(dep)
self.process_sourcelist(dep.get_sources())
self.add_deps(dep.ext_deps)
elif isinstance(dep, BuildTarget):
raise InvalidArguments('''Tried to use a build target as a dependency.
You probably should put it in link_with instead.''')
else:
# This is a bit of a hack. We do not want Build to know anything
# about the interpreter so we can't import it and use isinstance.
# This should be reliable enough.
if hasattr(dep, 'held_object'):
# FIXME: subproject is not a real ObjectHolder so we have to do this by hand
dep = dep.held_object
if hasattr(dep, 'project_args_frozen') or hasattr(dep, 'global_args_frozen'):
raise InvalidArguments('Tried to use subproject object as a dependency.\n'
'You probably wanted to use a dependency declared in it instead.\n'
'Access it by calling get_variable() on the subproject object.')
raise InvalidArguments(f'Argument is of an unacceptable type {type(dep).__name__!r}.\nMust be '
'either an external dependency (returned by find_library() or '
'dependency()) or an internal dependency (returned by '
'declare_dependency()).')
dep_d_features = dep.d_features
for feature in ('versions', 'import_dirs'):
if feature in dep_d_features:
self.d_features[feature].extend(dep_d_features[feature])
self.added_deps.add(dep)
def get_external_deps(self) -> T.List[dependencies.Dependency]:
return self.external_deps
def is_internal(self) -> bool:
return False
def link(self, targets):
for t in targets:
if isinstance(self, StaticLibrary) and self.need_install:
if isinstance(t, (CustomTarget, CustomTargetIndex)):
if not t.should_install():
mlog.warning(f'Try to link an installed static library target {self.name} with a'
'custom target that is not installed, this might cause problems'
'when you try to use this static library')
elif t.is_internal():
# When we're a static library and we link_with to an
# internal/convenience library, promote to link_whole.
self.link_whole([t])
continue
if not isinstance(t, (Target, CustomTargetIndex)):
if isinstance(t, dependencies.ExternalLibrary):
raise MesonException(textwrap.dedent('''\
An external library was used in link_with keyword argument, which
is reserved for libraries built as part of this project. External
libraries must be passed using the dependencies keyword argument
instead, because they are conceptually "external dependencies",
just like those detected with the dependency() function.
'''))
raise InvalidArguments(f'{t!r} is not a target.')
if not t.is_linkable_target():
raise InvalidArguments(f"Link target '{t!s}' is not linkable.")
if isinstance(self, SharedLibrary) and isinstance(t, StaticLibrary) and not t.pic:
msg = f"Can't link non-PIC static library {t.name!r} into shared library {self.name!r}. "
msg += "Use the 'pic' option to static_library to build with PIC."
raise InvalidArguments(msg)
if self.for_machine is not t.for_machine:
msg = f'Tried to mix libraries for machines {self.for_machine} and {t.for_machine} in target {self.name!r}'
if self.environment.is_cross_build():
raise InvalidArguments(msg + ' This is not possible in a cross build.')
else:
mlog.warning(msg + ' This will fail in cross build.')
self.link_targets.append(t)
def link_whole(self, targets):
for t in targets:
if isinstance(t, (CustomTarget, CustomTargetIndex)):
if not t.is_linkable_target():
raise InvalidArguments(f'Custom target {t!r} is not linkable.')
if t.links_dynamically():
raise InvalidArguments('Can only link_whole custom targets that are static archives.')
elif not isinstance(t, StaticLibrary):
raise InvalidArguments(f'{t!r} is not a static library.')
elif isinstance(self, SharedLibrary) and not t.pic:
msg = f"Can't link non-PIC static library {t.name!r} into shared library {self.name!r}. "
msg += "Use the 'pic' option to static_library to build with PIC."
raise InvalidArguments(msg)
if self.for_machine is not t.for_machine:
msg = f'Tried to mix libraries for machines {self.for_machine} and {t.for_machine} in target {self.name!r}'
if self.environment.is_cross_build():
raise InvalidArguments(msg + ' This is not possible in a cross build.')
else:
mlog.warning(msg + ' This will fail in cross build.')
if isinstance(self, StaticLibrary) and not self.uses_rust():
if isinstance(t, (CustomTarget, CustomTargetIndex)) or t.uses_rust():
# There are cases we cannot do this, however. In Rust, for
# example, this can't be done with Rust ABI libraries, though
# it could be done with C ABI libraries, though there are
# several meson issues that need to be fixed:
# https://github.com/mesonbuild/meson/issues/10722
# https://github.com/mesonbuild/meson/issues/10723
# https://github.com/mesonbuild/meson/issues/10724
# FIXME: We could extract the .a archive to get object files
raise InvalidArguments('Cannot link_whole a custom or Rust target into a static library')
# When we're a static library and we link_whole: to another static
# library, we need to add that target's objects to ourselves.
self.objects += [t.extract_all_objects()]
# If we install this static library we also need to include objects
# from all uninstalled static libraries it depends on.
if self.need_install:
for lib in t.get_internal_static_libraries():
self.objects += [lib.extract_all_objects()]
self.link_whole_targets.append(t)
@lru_cache(maxsize=None)
def get_internal_static_libraries(self) -> OrderedSet[Target]:
result: OrderedSet[Target] = OrderedSet()
self.get_internal_static_libraries_recurse(result)
return result
def get_internal_static_libraries_recurse(self, result: OrderedSet[Target]) -> None:
for t in self.link_targets:
if t.is_internal() and t not in result:
result.add(t)
t.get_internal_static_libraries_recurse(result)
for t in self.link_whole_targets:
if t.is_internal():
t.get_internal_static_libraries_recurse(result)
def add_pch(self, language: str, pchlist: T.List[str]) -> None:
if not pchlist:
return
elif len(pchlist) == 1:
if not environment.is_header(pchlist[0]):
raise InvalidArguments(f'PCH argument {pchlist[0]} is not a header.')
elif len(pchlist) == 2:
if environment.is_header(pchlist[0]):
if not environment.is_source(pchlist[1]):
raise InvalidArguments('PCH definition must contain one header and at most one source.')
elif environment.is_source(pchlist[0]):
if not environment.is_header(pchlist[1]):
raise InvalidArguments('PCH definition must contain one header and at most one source.')
pchlist = [pchlist[1], pchlist[0]]
else:
raise InvalidArguments(f'PCH argument {pchlist[0]} is of unknown type.')
if os.path.dirname(pchlist[0]) != os.path.dirname(pchlist[1]):
raise InvalidArguments('PCH files must be stored in the same folder.')
FeatureDeprecated.single_use('PCH source files', '0.50.0', self.subproject,
'Only a single header file should be used.')
elif len(pchlist) > 2:
raise InvalidArguments('PCH definition may have a maximum of 2 files.')
for f in pchlist:
if not isinstance(f, str):
raise MesonException('PCH arguments must be strings.')
if not os.path.isfile(os.path.join(self.environment.source_dir, self.subdir, f)):
raise MesonException(f'File {f} does not exist.')
self.pch[language] = pchlist
def add_include_dirs(self, args: T.Sequence['IncludeDirs'], set_is_system: T.Optional[str] = None) -> None:
ids: T.List['IncludeDirs'] = []
for a in args:
if not isinstance(a, IncludeDirs):
raise InvalidArguments('Include directory to be added is not an include directory object.')
ids.append(a)
if set_is_system is None:
set_is_system = 'preserve'
if set_is_system != 'preserve':
is_system = set_is_system == 'system'
ids = [IncludeDirs(x.get_curdir(), x.get_incdirs(), is_system, x.get_extra_build_dirs()) for x in ids]
self.include_dirs += ids
def add_compiler_args(self, language: str, args: T.List['FileOrString']) -> None:
args = listify(args)
for a in args:
if not isinstance(a, (str, File)):
raise InvalidArguments('A non-string passed to compiler args.')
if language in self.extra_args:
self.extra_args[language] += args
else:
self.extra_args[language] = args
def get_aliases(self) -> T.List[T.Tuple[str, str, str]]:
return []
def get_langs_used_by_deps(self) -> T.List[str]:
'''
Sometimes you want to link to a C++ library that exports C API, which
means the linker must link in the C++ stdlib, and we must use a C++
compiler for linking. The same is also applicable for objc/objc++, etc,
so we can keep using clink_langs for the priority order.
See: https://github.com/mesonbuild/meson/issues/1653
'''
langs = [] # type: T.List[str]
# Check if any of the external libraries were written in this language
for dep in self.external_deps:
if dep.language is None:
continue
if dep.language not in langs:
langs.append(dep.language)
# Check if any of the internal libraries this target links to were
# written in this language
for link_target in itertools.chain(self.link_targets, self.link_whole_targets):
if isinstance(link_target, (CustomTarget, CustomTargetIndex)):
continue
for language in link_target.compilers:
if language not in langs:
langs.append(language)
return langs
def get_prelinker(self):
if self.link_language:
comp = self.all_compilers[self.link_language]
return comp
for l in clink_langs:
if l in self.compilers:
try:
prelinker = self.all_compilers[l]
except KeyError:
raise MesonException(
f'Could not get a prelinker linker for build target {self.name!r}. '
f'Requires a compiler for language "{l}", but that is not '
'a project language.')
return prelinker
raise MesonException(f'Could not determine prelinker for {self.name!r}.')
def get_clink_dynamic_linker_and_stdlibs(self) -> T.Tuple['Compiler', T.List[str]]:
'''
We use the order of languages in `clink_langs` to determine which
linker to use in case the target has sources compiled with multiple
compilers. All languages other than those in this list have their own
linker.
Note that Vala outputs C code, so Vala sources can use any linker
that can link compiled C. We don't actually need to add an exception
for Vala here because of that.
'''
# If the user set the link_language, just return that.
if self.link_language:
comp = self.all_compilers[self.link_language]
return comp, comp.language_stdlib_only_link_flags(self.environment)
# Since dependencies could come from subprojects, they could have
# languages we don't have in self.all_compilers. Use the global list of
# all compilers here.
all_compilers = self.environment.coredata.compilers[self.for_machine]
# Languages used by dependencies
dep_langs = self.get_langs_used_by_deps()
# Pick a compiler based on the language priority-order
for l in clink_langs:
if l in self.compilers or l in dep_langs:
try:
linker = all_compilers[l]
except KeyError:
raise MesonException(
f'Could not get a dynamic linker for build target {self.name!r}. '
f'Requires a linker for language "{l}", but that is not '
'a project language.')
stdlib_args: T.List[str] = self.get_used_stdlib_args(linker.language)
# Type of var 'linker' is Compiler.
# Pretty hard to fix because the return value is passed everywhere
return linker, stdlib_args
# None of our compilers can do clink, this happens for example if the
# target only has ASM sources. Pick the first capable compiler.
for l in clink_langs:
try:
comp = self.all_compilers[l]
return comp, comp.language_stdlib_only_link_flags(self.environment)
except KeyError:
pass
raise AssertionError(f'Could not get a dynamic linker for build target {self.name!r}')
def get_used_stdlib_args(self, link_language: str) -> T.List[str]:
all_compilers = self.environment.coredata.compilers[self.for_machine]
all_langs = set(self.compilers).union(self.get_langs_used_by_deps())
stdlib_args: T.List[str] = []
for dl in all_langs:
if dl != link_language and (dl, link_language) not in self._MASK_LANGS:
# We need to use all_compilers here because
# get_langs_used_by_deps could return a language from a
# subproject
stdlib_args.extend(all_compilers[dl].language_stdlib_only_link_flags(self.environment))
return stdlib_args
def uses_rust(self) -> bool:
return 'rust' in self.compilers
def uses_fortran(self) -> bool:
return 'fortran' in self.compilers
def get_using_msvc(self) -> bool:
'''
Check if the dynamic linker is MSVC. Used by Executable, StaticLibrary,
and SharedLibrary for deciding when to use MSVC-specific file naming
and debug filenames.
If at least some code is built with MSVC and the final library is
linked with MSVC, we can be sure that some debug info will be
generated. We only check the dynamic linker here because the static
linker is guaranteed to be of the same type.
Interesting cases:
1. The Vala compiler outputs C code to be compiled by whatever
C compiler we're using, so all objects will still be created by the
MSVC compiler.
2. If the target contains only objects, process_compilers guesses and
picks the first compiler that smells right.
'''
# Rustc can use msvc style linkers
if self.uses_rust():
compiler = self.all_compilers['rust']
else:
compiler, _ = self.get_clink_dynamic_linker_and_stdlibs()
# Mixing many languages with MSVC is not supported yet so ignore stdlibs.
return compiler and compiler.get_linker_id() in {'link', 'lld-link', 'xilink', 'optlink'}
def check_module_linking(self):
'''
Warn if shared modules are linked with target: (link_with) #2865
'''
for link_target in self.link_targets:
if isinstance(link_target, SharedModule) and not link_target.force_soname:
if self.environment.machines[self.for_machine].is_darwin():
raise MesonException(
f'target {self.name} links against shared module {link_target.name}. This is not permitted on OSX')
elif self.environment.machines[self.for_machine].is_android() and isinstance(self, SharedModule):
# Android requires shared modules that use symbols from other shared modules to
# be linked before they can be dlopen()ed in the correct order. Not doing so
# leads to a missing symbol error: https://github.com/android/ndk/issues/201
link_target.force_soname = True
else:
mlog.deprecation(f'target {self.name} links against shared module {link_target.name}, which is incorrect.'
'\n '
f'This will be an error in the future, so please use shared_library() for {link_target.name} instead.'
'\n '
f'If shared_module() was used for {link_target.name} because it has references to undefined symbols,'
'\n '
'use shared_library() with `override_options: [\'b_lundef=false\']` instead.')
link_target.force_soname = True
class FileInTargetPrivateDir:
"""Represents a file with the path '/path/to/build/target_private_dir/fname'.
target_private_dir is the return value of get_target_private_dir which is e.g. 'subdir/target.p'.
"""
def __init__(self, fname: str):
self.fname = fname
class FileMaybeInTargetPrivateDir:
"""Union between 'File' and 'FileInTargetPrivateDir'"""
def __init__(self, inner: T.Union[File, FileInTargetPrivateDir]):
self.inner = inner
@property
def fname(self) -> str:
return self.inner.fname
def rel_to_builddir(self, build_to_src: str, target_private_dir: str) -> str:
if isinstance(self.inner, FileInTargetPrivateDir):
return os.path.join(target_private_dir, self.inner.fname)
return self.inner.rel_to_builddir(build_to_src)
def absolute_path(self, srcdir: str, builddir: str) -> str:
if isinstance(self.inner, FileInTargetPrivateDir):
raise RuntimeError('Unreachable code')
return self.inner.absolute_path(srcdir, builddir)
class Generator(HoldableObject):
def __init__(self, exe: T.Union['Executable', programs.ExternalProgram],
arguments: T.List[str],
output: T.List[str],
# how2dataclass
*,
depfile: T.Optional[str] = None,
capture: bool = False,
depends: T.Optional[T.List[T.Union[BuildTarget, 'CustomTarget']]] = None,
name: str = 'Generator'):
self.exe = exe
self.depfile = depfile
self.capture = capture
self.depends: T.List[T.Union[BuildTarget, 'CustomTarget']] = depends or []
self.arglist = arguments
self.outputs = output
self.name = name
def __repr__(self) -> str:
repr_str = "<{0}: {1}>"
return repr_str.format(self.__class__.__name__, self.exe)
def get_exe(self) -> T.Union['Executable', programs.ExternalProgram]:
return self.exe
def get_base_outnames(self, inname: str) -> T.List[str]:
plainname = os.path.basename(inname)
basename = os.path.splitext(plainname)[0]
bases = [x.replace('@BASENAME@', basename).replace('@PLAINNAME@', plainname) for x in self.outputs]
return bases
def get_dep_outname(self, inname: str) -> T.List[str]:
if self.depfile is None:
raise InvalidArguments('Tried to get dep name for rule that does not have dependency file defined.')
plainname = os.path.basename(inname)
basename = os.path.splitext(plainname)[0]
return self.depfile.replace('@BASENAME@', basename).replace('@PLAINNAME@', plainname)
def get_arglist(self, inname: str) -> T.List[str]:
plainname = os.path.basename(inname)
basename = os.path.splitext(plainname)[0]
return [x.replace('@BASENAME@', basename).replace('@PLAINNAME@', plainname) for x in self.arglist]
@staticmethod
def is_parent_path(parent: str, trial: str) -> bool:
relpath = pathlib.PurePath(trial).relative_to(parent)
return relpath.parts[0] != '..' # For subdirs we can only go "down".
def process_files(self, files: T.Iterable[T.Union[str, File, 'CustomTarget', 'CustomTargetIndex', 'GeneratedList']],
state: T.Union['Interpreter', 'ModuleState'],
preserve_path_from: T.Optional[str] = None,
extra_args: T.Optional[T.List[str]] = None) -> 'GeneratedList':
output = GeneratedList(self, state.subdir, preserve_path_from, extra_args=extra_args if extra_args is not None else [])
for e in files:
if isinstance(e, CustomTarget):
output.depends.add(e)
if isinstance(e, CustomTargetIndex):
output.depends.add(e.target)
if isinstance(e, (CustomTarget, CustomTargetIndex)):
output.depends.add(e)
fs = [File.from_built_file(state.subdir, f) for f in e.get_outputs()]
elif isinstance(e, GeneratedList):
if preserve_path_from:
raise InvalidArguments("generator.process: 'preserve_path_from' is not allowed if one input is a 'generated_list'.")
output.depends.add(e)
fs = [FileInTargetPrivateDir(f) for f in e.get_outputs()]
elif isinstance(e, str):
fs = [File.from_source_file(state.environment.source_dir, state.subdir, e)]
else:
fs = [e]
for f in fs:
if preserve_path_from:
abs_f = f.absolute_path(state.environment.source_dir, state.environment.build_dir)
if not self.is_parent_path(preserve_path_from, abs_f):
raise InvalidArguments('generator.process: When using preserve_path_from, all input files must be in a subdirectory of the given dir.')
f = FileMaybeInTargetPrivateDir(f)
output.add_file(f, state)
return output
@dataclass(eq=False)
class GeneratedList(HoldableObject):
"""The output of generator.process."""
generator: Generator
subdir: str
preserve_path_from: T.Optional[str]
extra_args: T.List[str]
def __post_init__(self) -> None:
self.name = self.generator.exe
self.depends: T.Set[GeneratedTypes] = set()
self.infilelist: T.List[FileMaybeInTargetPrivateDir] = []
self.outfilelist: T.List[str] = []
self.outmap: T.Dict[FileMaybeInTargetPrivateDir, T.List[str]] = {}
self.extra_depends = [] # XXX: Doesn't seem to be used?
self.depend_files: T.List[File] = []
if self.extra_args is None:
self.extra_args: T.List[str] = []
if isinstance(self.generator.exe, programs.ExternalProgram):
if not self.generator.exe.found():
raise InvalidArguments('Tried to use not-found external program as generator')
path = self.generator.exe.get_path()
if os.path.isabs(path):
# Can only add a dependency on an external program which we
# know the absolute path of
self.depend_files.append(File.from_absolute_file(path))
def add_preserved_path_segment(self, infile: FileMaybeInTargetPrivateDir, outfiles: T.List[str], state: T.Union['Interpreter', 'ModuleState']) -> T.List[str]:
result: T.List[str] = []
in_abs = infile.absolute_path(state.environment.source_dir, state.environment.build_dir)
assert os.path.isabs(self.preserve_path_from)
rel = os.path.relpath(in_abs, self.preserve_path_from)
path_segment = os.path.dirname(rel)
for of in outfiles:
result.append(os.path.join(path_segment, of))
return result
def add_file(self, newfile: FileMaybeInTargetPrivateDir, state: T.Union['Interpreter', 'ModuleState']) -> None:
self.infilelist.append(newfile)
outfiles = self.generator.get_base_outnames(newfile.fname)
if self.preserve_path_from:
outfiles = self.add_preserved_path_segment(newfile, outfiles, state)
self.outfilelist += outfiles
self.outmap[newfile] = outfiles
def get_inputs(self) -> T.List[FileMaybeInTargetPrivateDir]:
return self.infilelist
def get_outputs(self) -> T.List[str]:
return self.outfilelist
def get_outputs_for(self, filename: FileMaybeInTargetPrivateDir) -> T.List[str]:
return self.outmap[filename]
def get_generator(self) -> 'Generator':
return self.generator
def get_extra_args(self) -> T.List[str]:
return self.extra_args
def get_subdir(self) -> str:
return self.subdir
class Executable(BuildTarget):
known_kwargs = known_exe_kwargs
typename = 'executable'
def __init__(
self,
name: str,
subdir: str,
subproject: SubProject,
for_machine: MachineChoice,
sources: T.List['SourceOutputs'],
structured_sources: T.Optional[StructuredSources],
objects: T.List[ObjectTypes],
environment: environment.Environment,
compilers: T.Dict[str, 'Compiler'],
kwargs):
key = OptionKey('b_pie')
if 'pie' not in kwargs and key in environment.coredata.options:
kwargs['pie'] = environment.coredata.options[key].value
super().__init__(name, subdir, subproject, for_machine, sources, structured_sources, objects,
environment, compilers, kwargs)
# Check for export_dynamic
self.export_dynamic = kwargs.get('export_dynamic', False)
if not isinstance(self.export_dynamic, bool):
raise InvalidArguments('"export_dynamic" keyword argument must be a boolean')
self.implib = kwargs.get('implib')
if not isinstance(self.implib, (bool, str, type(None))):
raise InvalidArguments('"export_dynamic" keyword argument must be a boolean or string')
if self.implib:
self.export_dynamic = True
if self.export_dynamic and self.implib is False:
raise InvalidArguments('"implib" keyword argument must not be false for if "export_dynamic" is true')
# Only linkwithable if using export_dynamic
self.is_linkwithable = self.export_dynamic
# Remember that this exe was returned by `find_program()` through an override
self.was_returned_by_find_program = False
def post_init(self) -> None:
super().post_init()
machine = self.environment.machines[self.for_machine]
# Unless overridden, executables have no suffix or prefix. Except on
# Windows and with C#/Mono executables where the suffix is 'exe'
if not hasattr(self, 'prefix'):
self.prefix = ''
if not hasattr(self, 'suffix'):
# Executable for Windows or C#/Mono
if machine.is_windows() or machine.is_cygwin() or 'cs' in self.compilers:
self.suffix = 'exe'
elif machine.system.startswith('wasm') or machine.system == 'emscripten':
self.suffix = 'js'
elif ('c' in self.compilers and self.compilers['c'].get_id().startswith('armclang') or
'cpp' in self.compilers and self.compilers['cpp'].get_id().startswith('armclang')):
self.suffix = 'axf'
elif ('c' in self.compilers and self.compilers['c'].get_id().startswith('ccrx') or
'cpp' in self.compilers and self.compilers['cpp'].get_id().startswith('ccrx')):
self.suffix = 'abs'
elif ('c' in self.compilers and self.compilers['c'].get_id().startswith('xc16')):
self.suffix = 'elf'
elif ('c' in self.compilers and self.compilers['c'].get_id() in {'ti', 'c2000'} or
'cpp' in self.compilers and self.compilers['cpp'].get_id() in {'ti', 'c2000'}):
self.suffix = 'out'
elif ('c' in self.compilers and self.compilers['c'].get_id() in {'mwccarm', 'mwcceppc'} or
'cpp' in self.compilers and self.compilers['cpp'].get_id() in {'mwccarm', 'mwcceppc'}):
self.suffix = 'nef'
else:
self.suffix = machine.get_exe_suffix()
self.filename = self.name
if self.suffix:
self.filename += '.' + self.suffix
self.outputs = [self.filename]
# The import library this target will generate
self.import_filename = None
# The import library that Visual Studio would generate (and accept)
self.vs_import_filename = None
# The import library that GCC would generate (and prefer)
self.gcc_import_filename = None
# The debugging information file this target will generate
self.debug_filename = None
# If using export_dynamic, set the import library name
if self.export_dynamic:
implib_basename = self.name + '.exe'
if isinstance(self.implib, str):
implib_basename = self.implib
if machine.is_windows() or machine.is_cygwin():
self.vs_import_filename = f'{implib_basename}.lib'
self.gcc_import_filename = f'lib{implib_basename}.a'
if self.get_using_msvc():
self.import_filename = self.vs_import_filename
else:
self.import_filename = self.gcc_import_filename
create_debug_file = (
machine.is_windows()
and ('cs' in self.compilers or self.uses_rust() or self.get_using_msvc())
# .pdb file is created only when debug symbols are enabled
and self.environment.coredata.get_option(OptionKey("debug"))
)
if create_debug_file:
self.debug_filename = self.name + '.pdb'
def get_default_install_dir(self) -> T.Tuple[str, str]:
return self.environment.get_bindir(), '{bindir}'
def description(self):
'''Human friendly description of the executable'''
return self.name
def type_suffix(self):
return "@exe"
def get_import_filename(self) -> T.Optional[str]:
"""
The name of the import library that will be outputted by the compiler
Returns None if there is no import library required for this platform
"""
return self.import_filename
def get_import_filenameslist(self):
if self.import_filename:
return [self.vs_import_filename, self.gcc_import_filename]
return []
def get_debug_filename(self) -> T.Optional[str]:
"""
The name of debuginfo file that will be created by the compiler
Returns None if the build won't create any debuginfo file
"""
return self.debug_filename
def is_linkable_target(self):
return self.is_linkwithable
def get_command(self) -> 'ImmutableListProtocol[str]':
"""Provides compatibility with ExternalProgram.
Since you can override ExternalProgram instances with Executables.
"""
return self.outputs
def get_path(self) -> str:
"""Provides compatibility with ExternalProgram."""
return os.path.join(self.subdir, self.filename)
def found(self) -> bool:
"""Provides compatibility with ExternalProgram."""
return True
class StaticLibrary(BuildTarget):
known_kwargs = known_stlib_kwargs
typename = 'static library'
def __init__(
self,
name: str,
subdir: str,
subproject: SubProject,
for_machine: MachineChoice,
sources: T.List['SourceOutputs'],
structured_sources: T.Optional[StructuredSources],
objects: T.List[ObjectTypes],
environment: environment.Environment,
compilers: T.Dict[str, 'Compiler'],
kwargs):
self.prelink = kwargs.get('prelink', False)
if not isinstance(self.prelink, bool):
raise InvalidArguments('Prelink keyword argument must be a boolean.')
super().__init__(name, subdir, subproject, for_machine, sources, structured_sources, objects,
environment, compilers, kwargs)
def post_init(self) -> None:
super().post_init()
if 'cs' in self.compilers:
raise InvalidArguments('Static libraries not supported for C#.')
if 'rust' in self.compilers:
# If no crate type is specified, or it's the generic lib type, use rlib
if not hasattr(self, 'rust_crate_type') or self.rust_crate_type == 'lib':
mlog.debug('Defaulting Rust static library target crate type to rlib')
self.rust_crate_type = 'rlib'
# Don't let configuration proceed with a non-static crate type
elif self.rust_crate_type not in ['rlib', 'staticlib']:
raise InvalidArguments(f'Crate type "{self.rust_crate_type}" invalid for static libraries; must be "rlib" or "staticlib"')
# See https://github.com/rust-lang/rust/issues/110460
if self.rust_crate_type == 'rlib' and any(c in self.name for c in ['-', ' ', '.']):
raise InvalidArguments('Rust crate type "rlib" does not allow spaces, periods or dashes in the library name '
'due to a limitation of rustc. Replace them with underscores, for example')
if self.rust_crate_type == 'staticlib':
# FIXME: In the case of no-std we should not add those libraries,
# but we have no way to know currently.
rustc = self.compilers['rust']
d = dependencies.InternalDependency('undefined', [], [],
rustc.native_static_libs,
[], [], [], [], [], {}, [], [], [])
self.external_deps.append(d)
# By default a static library is named libfoo.a even on Windows because
# MSVC does not have a consistent convention for what static libraries
# are called. The MSVC CRT uses libfoo.lib syntax but nothing else uses
# it and GCC only looks for static libraries called foo.lib and
# libfoo.a. However, we cannot use foo.lib because that's the same as
# the import library. Using libfoo.a is ok because people using MSVC
# always pass the library filename while linking anyway.
if not hasattr(self, 'prefix'):
self.prefix = 'lib'
if not hasattr(self, 'suffix'):
if 'rust' in self.compilers:
if not hasattr(self, 'rust_crate_type') or self.rust_crate_type == 'rlib':
# default Rust static library suffix
self.suffix = 'rlib'
elif self.rust_crate_type == 'staticlib':
self.suffix = 'a'
else:
self.suffix = 'a'
self.filename = self.prefix + self.name + '.' + self.suffix
self.outputs = [self.filename]
def get_link_deps_mapping(self, prefix: str) -> T.Mapping[str, str]:
return {}
def get_default_install_dir(self) -> T.Tuple[str, str]:
return self.environment.get_static_lib_dir(), '{libdir_static}'
def type_suffix(self):
return "@sta"
def process_kwargs(self, kwargs):
super().process_kwargs(kwargs)
if 'rust_crate_type' in kwargs:
rust_crate_type = kwargs['rust_crate_type']
if isinstance(rust_crate_type, str):
self.rust_crate_type = rust_crate_type
else:
raise InvalidArguments(f'Invalid rust_crate_type "{rust_crate_type}": must be a string.')
def is_linkable_target(self):
return True
def is_internal(self) -> bool:
return not self.need_install
class SharedLibrary(BuildTarget):
known_kwargs = known_shlib_kwargs
typename = 'shared library'
def __init__(
self,
name: str,
subdir: str,
subproject: SubProject,
for_machine: MachineChoice,
sources: T.List['SourceOutputs'],
structured_sources: T.Optional[StructuredSources],
objects: T.List[ObjectTypes],
environment: environment.Environment,
compilers: T.Dict[str, 'Compiler'],
kwargs):
self.soversion = None
self.ltversion = None
# Max length 2, first element is compatibility_version, second is current_version
self.darwin_versions = []
self.vs_module_defs = None
# The import library this target will generate
self.import_filename = None
# The import library that Visual Studio would generate (and accept)
self.vs_import_filename = None
# The import library that GCC would generate (and prefer)
self.gcc_import_filename = None
# The debugging information file this target will generate
self.debug_filename = None
# Use by the pkgconfig module
self.shared_library_only = False
super().__init__(name, subdir, subproject, for_machine, sources, structured_sources, objects,
environment, compilers, kwargs)
def post_init(self) -> None:
super().post_init()
if 'rust' in self.compilers:
# If no crate type is specified, or it's the generic lib type, use dylib
if not hasattr(self, 'rust_crate_type') or self.rust_crate_type == 'lib':
mlog.debug('Defaulting Rust dynamic library target crate type to "dylib"')
self.rust_crate_type = 'dylib'
# Don't let configuration proceed with a non-dynamic crate type
elif self.rust_crate_type not in ['dylib', 'cdylib', 'proc-macro']:
raise InvalidArguments(f'Crate type "{self.rust_crate_type}" invalid for dynamic libraries; must be "dylib", "cdylib", or "proc-macro"')
# See https://github.com/rust-lang/rust/issues/110460
if self.rust_crate_type != 'cdylib' and any(c in self.name for c in ['-', ' ', '.']):
raise InvalidArguments('Rust crate types "dylib" and "proc-macro" do not allow spaces, periods or dashes in the library name '
'due to a limitation of rustc. Replace them with underscores, for example')
if not hasattr(self, 'prefix'):
self.prefix = None
if not hasattr(self, 'suffix'):
self.suffix = None
self.basic_filename_tpl = '{0.prefix}{0.name}.{0.suffix}'
self.determine_filenames()
def get_link_deps_mapping(self, prefix: str) -> T.Mapping[str, str]:
result: T.Dict[str, str] = {}
mappings = self.get_transitive_link_deps_mapping(prefix)
old = get_target_macos_dylib_install_name(self)
if old not in mappings:
fname = self.get_filename()
outdirs, _, _ = self.get_install_dir()
new = os.path.join(prefix, outdirs[0], fname)
result.update({old: new})
mappings.update(result)
return mappings
def get_default_install_dir(self) -> T.Tuple[str, str]:
return self.environment.get_shared_lib_dir(), '{libdir_shared}'
def determine_filenames(self):
"""
See https://github.com/mesonbuild/meson/pull/417 for details.
First we determine the filename template (self.filename_tpl), then we
set the output filename (self.filename).
The template is needed while creating aliases (self.get_aliases),
which are needed while generating .so shared libraries for Linux.
Besides this, there's also the import library name, which is only used
on Windows since on that platform the linker uses a separate library
called the "import library" during linking instead of the shared
library (DLL). The toolchain will output an import library in one of
two formats: GCC or Visual Studio.
When we're building with Visual Studio, the import library that will be
generated by the toolchain is self.vs_import_filename, and with
MinGW/GCC, it's self.gcc_import_filename. self.import_filename will
always contain the import library name this target will generate.
"""
prefix = ''
suffix = ''
create_debug_file = False
self.filename_tpl = self.basic_filename_tpl
# NOTE: manual prefix/suffix override is currently only tested for C/C++
# C# and Mono
if 'cs' in self.compilers:
prefix = ''
suffix = 'dll'
self.filename_tpl = '{0.prefix}{0.name}.{0.suffix}'
create_debug_file = True
# C, C++, Swift, Vala
# Only Windows uses a separate import library for linking
# For all other targets/platforms import_filename stays None
elif self.environment.machines[self.for_machine].is_windows():
suffix = 'dll'
self.vs_import_filename = '{}{}.lib'.format(self.prefix if self.prefix is not None else '', self.name)
self.gcc_import_filename = '{}{}.dll.a'.format(self.prefix if self.prefix is not None else 'lib', self.name)
if self.uses_rust():
# Shared library is of the form foo.dll
prefix = ''
# Import library is called foo.dll.lib
self.import_filename = f'{self.name}.dll.lib'
# .pdb file is only created when debug symbols are enabled
create_debug_file = self.environment.coredata.get_option(OptionKey("debug"))
elif self.get_using_msvc():
# Shared library is of the form foo.dll
prefix = ''
# Import library is called foo.lib
self.import_filename = self.vs_import_filename
# .pdb file is only created when debug symbols are enabled
create_debug_file = self.environment.coredata.get_option(OptionKey("debug"))
# Assume GCC-compatible naming
else:
# Shared library is of the form libfoo.dll
prefix = 'lib'
# Import library is called libfoo.dll.a
self.import_filename = self.gcc_import_filename
# Shared library has the soversion if it is defined
if self.soversion:
self.filename_tpl = '{0.prefix}{0.name}-{0.soversion}.{0.suffix}'
else:
self.filename_tpl = '{0.prefix}{0.name}.{0.suffix}'
elif self.environment.machines[self.for_machine].is_cygwin():
suffix = 'dll'
self.gcc_import_filename = '{}{}.dll.a'.format(self.prefix if self.prefix is not None else 'lib', self.name)
# Shared library is of the form cygfoo.dll
# (ld --dll-search-prefix=cyg is the default)
prefix = 'cyg'
# Import library is called libfoo.dll.a
self.import_filename = self.gcc_import_filename
if self.soversion:
self.filename_tpl = '{0.prefix}{0.name}-{0.soversion}.{0.suffix}'
else:
self.filename_tpl = '{0.prefix}{0.name}.{0.suffix}'
elif self.environment.machines[self.for_machine].is_darwin():
prefix = 'lib'
suffix = 'dylib'
# On macOS, the filename can only contain the major version
if self.soversion:
# libfoo.X.dylib
self.filename_tpl = '{0.prefix}{0.name}.{0.soversion}.{0.suffix}'
else:
# libfoo.dylib
self.filename_tpl = '{0.prefix}{0.name}.{0.suffix}'
elif self.environment.machines[self.for_machine].is_android():
prefix = 'lib'
suffix = 'so'
# Android doesn't support shared_library versioning
self.filename_tpl = '{0.prefix}{0.name}.{0.suffix}'
else:
prefix = 'lib'
suffix = 'so'
if self.ltversion:
# libfoo.so.X[.Y[.Z]] (.Y and .Z are optional)
self.filename_tpl = '{0.prefix}{0.name}.{0.suffix}.{0.ltversion}'
elif self.soversion:
# libfoo.so.X
self.filename_tpl = '{0.prefix}{0.name}.{0.suffix}.{0.soversion}'
else:
# No versioning, libfoo.so
self.filename_tpl = '{0.prefix}{0.name}.{0.suffix}'
if self.prefix is None:
self.prefix = prefix
if self.suffix is None:
self.suffix = suffix
self.filename = self.filename_tpl.format(self)
# There may have been more outputs added by the time we get here, so
# only replace the first entry
self.outputs[0] = self.filename
if create_debug_file:
self.debug_filename = os.path.splitext(self.filename)[0] + '.pdb'
@staticmethod
def _validate_darwin_versions(darwin_versions):
try:
if isinstance(darwin_versions, int):
darwin_versions = str(darwin_versions)
if isinstance(darwin_versions, str):
darwin_versions = 2 * [darwin_versions]
if not isinstance(darwin_versions, list):
raise InvalidArguments('Shared library darwin_versions: must be a string, integer,'
f'or a list, not {darwin_versions!r}')
if len(darwin_versions) > 2:
raise InvalidArguments('Shared library darwin_versions: list must contain 2 or fewer elements')
if len(darwin_versions) == 1:
darwin_versions = 2 * darwin_versions
for i, v in enumerate(darwin_versions[:]):
if isinstance(v, int):
v = str(v)
if not isinstance(v, str):
raise InvalidArguments('Shared library darwin_versions: list elements '
f'must be strings or integers, not {v!r}')
if not re.fullmatch(r'[0-9]+(\.[0-9]+){0,2}', v):
raise InvalidArguments('Shared library darwin_versions: must be X.Y.Z where '
'X, Y, Z are numbers, and Y and Z are optional')
parts = v.split('.')
if len(parts) in {1, 2, 3} and int(parts[0]) > 65535:
raise InvalidArguments('Shared library darwin_versions: must be X.Y.Z '
'where X is [0, 65535] and Y, Z are optional')
if len(parts) in {2, 3} and int(parts[1]) > 255:
raise InvalidArguments('Shared library darwin_versions: must be X.Y.Z '
'where Y is [0, 255] and Y, Z are optional')
if len(parts) == 3 and int(parts[2]) > 255:
raise InvalidArguments('Shared library darwin_versions: must be X.Y.Z '
'where Z is [0, 255] and Y, Z are optional')
darwin_versions[i] = v
except ValueError:
raise InvalidArguments('Shared library darwin_versions: value is invalid')
return darwin_versions
def process_kwargs(self, kwargs):
super().process_kwargs(kwargs)
if not self.environment.machines[self.for_machine].is_android():
# Shared library version
if 'version' in kwargs:
self.ltversion = kwargs['version']
if not isinstance(self.ltversion, str):
raise InvalidArguments('Shared library version needs to be a string, not ' + type(self.ltversion).__name__)
if not re.fullmatch(r'[0-9]+(\.[0-9]+){0,2}', self.ltversion):
raise InvalidArguments(f'Invalid Shared library version "{self.ltversion}". Must be of the form X.Y.Z where all three are numbers. Y and Z are optional.')
# Try to extract/deduce the soversion
if 'soversion' in kwargs:
self.soversion = kwargs['soversion']
if isinstance(self.soversion, int):
self.soversion = str(self.soversion)
if not isinstance(self.soversion, str):
raise InvalidArguments('Shared library soversion is not a string or integer.')
elif self.ltversion:
# library version is defined, get the soversion from that
# We replicate what Autotools does here and take the first
# number of the version by default.
self.soversion = self.ltversion.split('.')[0]
# macOS, iOS and tvOS dylib compatibility_version and current_version
if 'darwin_versions' in kwargs:
self.darwin_versions = self._validate_darwin_versions(kwargs['darwin_versions'])
elif self.soversion:
# If unspecified, pick the soversion
self.darwin_versions = 2 * [self.soversion]
# Visual Studio module-definitions file
if 'vs_module_defs' in kwargs:
path = kwargs['vs_module_defs']
if isinstance(path, str):
if os.path.isabs(path):
self.vs_module_defs = File.from_absolute_file(path)
else:
self.vs_module_defs = File.from_source_file(self.environment.source_dir, self.subdir, path)
elif isinstance(path, File):
# When passing a generated file.
self.vs_module_defs = path
elif hasattr(path, 'get_filename'):
# When passing output of a Custom Target
self.vs_module_defs = File.from_built_file(path.subdir, path.get_filename())
else:
raise InvalidArguments(
'Shared library vs_module_defs must be either a string, '
'a file object or a Custom Target')
self.process_link_depends(path)
if 'rust_crate_type' in kwargs:
rust_crate_type = kwargs['rust_crate_type']
if isinstance(rust_crate_type, str):
self.rust_crate_type = rust_crate_type
else:
raise InvalidArguments(f'Invalid rust_crate_type "{rust_crate_type}": must be a string.')
if rust_crate_type == 'proc-macro':
FeatureNew.single_use('Rust crate type "proc-macro"', '0.62.0', self.subproject)
def get_import_filename(self) -> T.Optional[str]:
"""
The name of the import library that will be outputted by the compiler
Returns None if there is no import library required for this platform
"""
return self.import_filename
def get_debug_filename(self) -> T.Optional[str]:
"""
The name of debuginfo file that will be created by the compiler
Returns None if the build won't create any debuginfo file
"""
return self.debug_filename
def get_import_filenameslist(self):
if self.import_filename:
return [self.vs_import_filename, self.gcc_import_filename]
return []
def get_all_link_deps(self):
return [self] + self.get_transitive_link_deps()
def get_aliases(self) -> T.List[T.Tuple[str, str, str]]:
"""
If the versioned library name is libfoo.so.0.100.0, aliases are:
* libfoo.so.0 (soversion) -> libfoo.so.0.100.0
* libfoo.so (unversioned; for linking) -> libfoo.so.0
Same for dylib:
* libfoo.dylib (unversioned; for linking) -> libfoo.0.dylib
"""
aliases: T.List[T.Tuple[str, str, str]] = []
# Aliases are only useful with .so and .dylib libraries. Also if
# there's no self.soversion (no versioning), we don't need aliases.
if self.suffix not in ('so', 'dylib') or not self.soversion:
return aliases
# With .so libraries, the minor and micro versions are also in the
# filename. If ltversion != soversion we create an soversion alias:
# libfoo.so.0 -> libfoo.so.0.100.0
# Where libfoo.so.0.100.0 is the actual library
if self.suffix == 'so' and self.ltversion and self.ltversion != self.soversion:
alias_tpl = self.filename_tpl.replace('ltversion', 'soversion')
ltversion_filename = alias_tpl.format(self)
tag = self.install_tag[0] or 'runtime'
aliases.append((ltversion_filename, self.filename, tag))
# libfoo.so.0/libfoo.0.dylib is the actual library
else:
ltversion_filename = self.filename
# Unversioned alias:
# libfoo.so -> libfoo.so.0
# libfoo.dylib -> libfoo.0.dylib
tag = self.install_tag[0] or 'devel'
aliases.append((self.basic_filename_tpl.format(self), ltversion_filename, tag))
return aliases
def type_suffix(self):
return "@sha"
def is_linkable_target(self):
return True
# A shared library that is meant to be used with dlopen rather than linking
# into something else.
class SharedModule(SharedLibrary):
known_kwargs = known_shmod_kwargs
typename = 'shared module'
def __init__(
self,
name: str,
subdir: str,
subproject: SubProject,
for_machine: MachineChoice,
sources: T.List['SourceOutputs'],
structured_sources: T.Optional[StructuredSources],
objects: T.List[ObjectTypes],
environment: environment.Environment,
compilers: T.Dict[str, 'Compiler'],
kwargs):
if 'version' in kwargs:
raise MesonException('Shared modules must not specify the version kwarg.')
if 'soversion' in kwargs:
raise MesonException('Shared modules must not specify the soversion kwarg.')
super().__init__(name, subdir, subproject, for_machine, sources,
structured_sources, objects, environment, compilers, kwargs)
# We need to set the soname in cases where build files link the module
# to build targets, see: https://github.com/mesonbuild/meson/issues/9492
self.force_soname = False
def get_default_install_dir(self) -> T.Tuple[str, str]:
return self.environment.get_shared_module_dir(), '{moduledir_shared}'
class BothLibraries(SecondLevelHolder):
def __init__(self, shared: SharedLibrary, static: StaticLibrary) -> None:
self._preferred_library = 'shared'
self.shared = shared
self.static = static
self.subproject = self.shared.subproject
def __repr__(self) -> str:
return f'<BothLibraries: static={repr(self.static)}; shared={repr(self.shared)}>'
def get_default_object(self) -> BuildTarget:
if self._preferred_library == 'shared':
return self.shared
elif self._preferred_library == 'static':
return self.static
raise MesonBugException(f'self._preferred_library == "{self._preferred_library}" is neither "shared" nor "static".')
class CommandBase:
depend_files: T.List[File]
dependencies: T.List[T.Union[BuildTarget, 'CustomTarget']]
subproject: str
def flatten_command(self, cmd: T.Sequence[T.Union[str, File, programs.ExternalProgram, BuildTargetTypes]]) -> \
T.List[T.Union[str, File, BuildTarget, 'CustomTarget']]:
cmd = listify(cmd)
final_cmd: T.List[T.Union[str, File, BuildTarget, 'CustomTarget']] = []
for c in cmd:
if isinstance(c, str):
final_cmd.append(c)
elif isinstance(c, File):
self.depend_files.append(c)
final_cmd.append(c)
elif isinstance(c, programs.ExternalProgram):
if not c.found():
raise InvalidArguments('Tried to use not-found external program in "command"')
path = c.get_path()
if os.path.isabs(path):
# Can only add a dependency on an external program which we
# know the absolute path of
self.depend_files.append(File.from_absolute_file(path))
final_cmd += c.get_command()
elif isinstance(c, (BuildTarget, CustomTarget)):
self.dependencies.append(c)
final_cmd.append(c)
elif isinstance(c, CustomTargetIndex):
FeatureNew.single_use('CustomTargetIndex for command argument', '0.60', self.subproject)
self.dependencies.append(c.target)
final_cmd += self.flatten_command(File.from_built_file(c.get_subdir(), c.get_filename()))
elif isinstance(c, list):
final_cmd += self.flatten_command(c)
else:
raise InvalidArguments(f'Argument {c!r} in "command" is invalid')
return final_cmd
class CustomTarget(Target, CommandBase):
typename = 'custom'
def __init__(self,
name: T.Optional[str],
subdir: str,
subproject: str,
environment: environment.Environment,
command: T.Sequence[T.Union[
str, BuildTargetTypes, GeneratedList,
programs.ExternalProgram, File]],
sources: T.Sequence[T.Union[
str, File, BuildTargetTypes, ExtractedObjects,
GeneratedList, programs.ExternalProgram]],
outputs: T.List[str],
*,
build_always_stale: bool = False,
build_by_default: T.Optional[bool] = None,
capture: bool = False,
console: bool = False,
depend_files: T.Optional[T.Sequence[FileOrString]] = None,
extra_depends: T.Optional[T.Sequence[T.Union[str, SourceOutputs]]] = None,
depfile: T.Optional[str] = None,
env: T.Optional[EnvironmentVariables] = None,
feed: bool = False,
install: bool = False,
install_dir: T.Optional[T.List[T.Union[str, Literal[False]]]] = None,
install_mode: T.Optional[FileMode] = None,
install_tag: T.Optional[T.List[T.Optional[str]]] = None,
absolute_paths: bool = False,
backend: T.Optional['Backend'] = None,
):
# TODO expose keyword arg to make MachineChoice.HOST configurable
super().__init__(name, subdir, subproject, False, MachineChoice.HOST, environment,
install, build_always_stale)
self.sources = list(sources)
self.outputs = substitute_values(
outputs, get_filenames_templates_dict(
get_sources_string_names(sources, backend),
[]))
self.build_by_default = build_by_default if build_by_default is not None else install
self.capture = capture
self.console = console
self.depend_files = list(depend_files or [])
self.dependencies: T.List[T.Union[CustomTarget, BuildTarget]] = []
# must be after depend_files and dependencies
self.command = self.flatten_command(command)
self.depfile = depfile
self.env = env or EnvironmentVariables()
self.extra_depends = list(extra_depends or [])
self.feed = feed
self.install_dir = list(install_dir or [])
self.install_mode = install_mode
self.install_tag = _process_install_tag(install_tag, len(self.outputs))
self.name = name if name else self.outputs[0]
# Whether to use absolute paths for all files on the commandline
self.absolute_paths = absolute_paths
def get_default_install_dir(self) -> T.Tuple[str, str]:
return None, None
def __repr__(self):
repr_str = "<{0} {1}: {2}>"
return repr_str.format(self.__class__.__name__, self.get_id(), self.command)
def get_target_dependencies(self) -> T.List[T.Union[SourceOutputs, str]]:
deps: T.List[T.Union[SourceOutputs, str]] = []
deps.extend(self.dependencies)
deps.extend(self.extra_depends)
for c in self.sources:
if isinstance(c, CustomTargetIndex):
deps.append(c.target)
elif not isinstance(c, programs.ExternalProgram):
deps.append(c)
return deps
def get_transitive_build_target_deps(self) -> T.Set[T.Union[BuildTarget, 'CustomTarget']]:
'''
Recursively fetch the build targets that this custom target depends on,
whether through `command:`, `depends:`, or `sources:` The recursion is
only performed on custom targets.
This is useful for setting PATH on Windows for finding required DLLs.
F.ex, if you have a python script that loads a C module that links to
other DLLs in your project.
'''
bdeps: T.Set[T.Union[BuildTarget, 'CustomTarget']] = set()
deps = self.get_target_dependencies()
for d in deps:
if isinstance(d, BuildTarget):
bdeps.add(d)
elif isinstance(d, CustomTarget):
bdeps.update(d.get_transitive_build_target_deps())
return bdeps
def get_dependencies(self):
return self.dependencies
def should_install(self) -> bool:
return self.install
def get_custom_install_dir(self) -> T.List[T.Union[str, Literal[False]]]:
return self.install_dir
def get_custom_install_mode(self) -> T.Optional['FileMode']:
return self.install_mode
def get_outputs(self) -> T.List[str]:
return self.outputs
def get_filename(self) -> str:
return self.outputs[0]
def get_sources(self) -> T.List[T.Union[str, File, BuildTarget, GeneratedTypes, ExtractedObjects, programs.ExternalProgram]]:
return self.sources
def get_generated_lists(self) -> T.List[GeneratedList]:
genlists: T.List[GeneratedList] = []
for c in self.sources:
if isinstance(c, GeneratedList):
genlists.append(c)
return genlists
def get_generated_sources(self) -> T.List[GeneratedList]:
return self.get_generated_lists()
def get_dep_outname(self, infilenames):
if self.depfile is None:
raise InvalidArguments('Tried to get depfile name for custom_target that does not have depfile defined.')
if infilenames:
plainname = os.path.basename(infilenames[0])
basename = os.path.splitext(plainname)[0]
return self.depfile.replace('@BASENAME@', basename).replace('@PLAINNAME@', plainname)
else:
if '@BASENAME@' in self.depfile or '@PLAINNAME@' in self.depfile:
raise InvalidArguments('Substitution in depfile for custom_target that does not have an input file.')
return self.depfile
def is_linkable_output(self, output: str) -> bool:
if output.endswith(('.a', '.dll', '.lib', '.so', '.dylib')):
return True
# libfoo.so.X soname
if re.search(r'\.so(\.\d+)*$', output):
return True
return False
def is_linkable_target(self) -> bool:
if len(self.outputs) != 1:
return False
return self.is_linkable_output(self.outputs[0])
def links_dynamically(self) -> bool:
"""Whether this target links dynamically or statically
Does not assert the target is linkable, just that it is not shared
:return: True if is dynamically linked, otherwise False
"""
suf = os.path.splitext(self.outputs[0])[-1]
return suf not in {'.a', '.lib'}
def get_link_deps_mapping(self, prefix: str) -> T.Mapping[str, str]:
return {}
def get_link_dep_subdirs(self) -> T.AbstractSet[str]:
return OrderedSet()
def get_all_link_deps(self):
return []
def is_internal(self) -> bool:
'''
Returns True if this is a not installed static library.
'''
if len(self.outputs) != 1:
return False
return CustomTargetIndex(self, self.outputs[0]).is_internal()
def extract_all_objects(self) -> T.List[T.Union[str, 'ExtractedObjects']]:
return self.get_outputs()
def type_suffix(self):
return "@cus"
def __getitem__(self, index: int) -> 'CustomTargetIndex':
return CustomTargetIndex(self, self.outputs[index])
def __setitem__(self, index, value):
raise NotImplementedError
def __delitem__(self, index):
raise NotImplementedError
def __iter__(self):
for i in self.outputs:
yield CustomTargetIndex(self, i)
def __len__(self) -> int:
return len(self.outputs)
class CompileTarget(BuildTarget):
'''
Target that only compile sources without linking them together.
It can be used as preprocessor, or transpiler.
'''
typename = 'compile'
def __init__(self,
name: str,
subdir: str,
subproject: str,
environment: environment.Environment,
sources: T.List['SourceOutputs'],
output_templ: str,
compiler: Compiler,
backend: Backend,
compile_args: T.List[str],
include_directories: T.List[IncludeDirs],
dependencies: T.List[dependencies.Dependency]):
compilers = {compiler.get_language(): compiler}
kwargs = {
'build_by_default': False,
f'{compiler.language}_args': compile_args,
'include_directories': include_directories,
'dependencies': dependencies,
}
super().__init__(name, subdir, subproject, compiler.for_machine,
sources, None, [], environment, compilers, kwargs)
self.filename = name
self.compiler = compiler
self.output_templ = output_templ
self.outputs = []
self.sources_map: T.Dict[File, str] = {}
for f in self.sources:
self._add_output(f)
for gensrc in self.generated:
for s in gensrc.get_outputs():
rel_src = backend.get_target_generated_dir(self, gensrc, s)
self._add_output(File.from_built_relative(rel_src))
def type_suffix(self) -> str:
return "@compile"
@property
def is_unity(self) -> bool:
return False
def _add_output(self, f: File) -> None:
plainname = os.path.basename(f.fname)
basename = os.path.splitext(plainname)[0]
o = self.output_templ.replace('@BASENAME@', basename).replace('@PLAINNAME@', plainname)
self.outputs.append(o)
self.sources_map[f] = o
class RunTarget(Target, CommandBase):
typename = 'run'
def __init__(self, name: str,
command: T.Sequence[T.Union[str, File, BuildTargetTypes, programs.ExternalProgram]],
dependencies: T.Sequence[Target],
subdir: str,
subproject: str,
environment: environment.Environment,
env: T.Optional['EnvironmentVariables'] = None,
default_env: bool = True):
# These don't produce output artifacts
super().__init__(name, subdir, subproject, False, MachineChoice.BUILD, environment)
self.dependencies = dependencies
self.depend_files = []
self.command = self.flatten_command(command)
self.absolute_paths = False
self.env = env
self.default_env = default_env
def __repr__(self) -> str:
repr_str = "<{0} {1}: {2}>"
return repr_str.format(self.__class__.__name__, self.get_id(), self.command[0])
def get_dependencies(self) -> T.List[T.Union[BuildTarget, 'CustomTarget']]:
return self.dependencies
def get_generated_sources(self) -> T.List['GeneratedTypes']:
return []
def get_sources(self) -> T.List[File]:
return []
def should_install(self) -> bool:
return False
def get_filename(self) -> str:
return self.name
def get_outputs(self) -> T.List[str]:
if isinstance(self.name, str):
return [self.name]
elif isinstance(self.name, list):
return self.name
else:
raise RuntimeError('RunTarget: self.name is neither a list nor a string. This is a bug')
def type_suffix(self) -> str:
return "@run"
class AliasTarget(RunTarget):
typename = 'alias'
def __init__(self, name: str, dependencies: T.Sequence['Target'],
subdir: str, subproject: str, environment: environment.Environment):
super().__init__(name, [], dependencies, subdir, subproject, environment)
def __repr__(self):
repr_str = "<{0} {1}>"
return repr_str.format(self.__class__.__name__, self.get_id())
class Jar(BuildTarget):
known_kwargs = known_jar_kwargs
typename = 'jar'
def __init__(self, name: str, subdir: str, subproject: str, for_machine: MachineChoice,
sources: T.List[SourceOutputs], structured_sources: T.Optional['StructuredSources'],
objects, environment: environment.Environment, compilers: T.Dict[str, 'Compiler'],
kwargs):
super().__init__(name, subdir, subproject, for_machine, sources, structured_sources, objects,
environment, compilers, kwargs)
for s in self.sources:
if not s.endswith('.java'):
raise InvalidArguments(f'Jar source {s} is not a java file.')
for t in self.link_targets:
if not isinstance(t, Jar):
raise InvalidArguments(f'Link target {t} is not a jar target.')
if self.structured_sources:
raise InvalidArguments('structured sources are not supported in Java targets.')
self.filename = self.name + '.jar'
self.outputs = [self.filename]
self.java_args = kwargs.get('java_args', [])
self.java_resources: T.Optional[StructuredSources] = kwargs.get('java_resources', None)
def get_main_class(self):
return self.main_class
def type_suffix(self):
return "@jar"
def get_java_args(self):
return self.java_args
def get_java_resources(self) -> T.Optional[StructuredSources]:
return self.java_resources
def validate_install(self):
# All jar targets are installable.
pass
def is_linkable_target(self):
return True
def get_classpath_args(self):
cp_paths = [os.path.join(l.get_subdir(), l.get_filename()) for l in self.link_targets]
cp_string = os.pathsep.join(cp_paths)
if cp_string:
return ['-cp', os.pathsep.join(cp_paths)]
return []
def get_default_install_dir(self) -> T.Tuple[str, str]:
return self.environment.get_jar_dir(), '{jardir}'
@dataclass(eq=False)
class CustomTargetIndex(HoldableObject):
"""A special opaque object returned by indexing a CustomTarget. This object
exists in Meson, but acts as a proxy in the backends, making targets depend
on the CustomTarget it's derived from, but only adding one source file to
the sources.
"""
typename: T.ClassVar[str] = 'custom'
target: T.Union[CustomTarget, CompileTarget]
output: str
def __post_init__(self) -> None:
self.for_machine = self.target.for_machine
@property
def name(self) -> str:
return f'{self.target.name}[{self.output}]'
def __repr__(self):
return '<CustomTargetIndex: {!r}[{}]>'.format(self.target, self.output)
def get_outputs(self) -> T.List[str]:
return [self.output]
def get_subdir(self) -> str:
return self.target.get_subdir()
def get_filename(self) -> str:
return self.output
def get_id(self) -> str:
return self.target.get_id()
def get_all_link_deps(self):
return self.target.get_all_link_deps()
def get_link_deps_mapping(self, prefix: str) -> T.Mapping[str, str]:
return self.target.get_link_deps_mapping(prefix)
def get_link_dep_subdirs(self) -> T.AbstractSet[str]:
return self.target.get_link_dep_subdirs()
def is_linkable_target(self) -> bool:
return self.target.is_linkable_output(self.output)
def links_dynamically(self) -> bool:
"""Whether this target links dynamically or statically
Does not assert the target is linkable, just that it is not shared
:return: True if is dynamically linked, otherwise False
"""
suf = os.path.splitext(self.output)[-1]
return suf not in {'.a', '.lib'}
def should_install(self) -> bool:
return self.target.should_install()
def is_internal(self) -> bool:
'''
Returns True if this is a not installed static library
'''
suf = os.path.splitext(self.output)[-1]
return suf in {'.a', '.lib'} and not self.should_install()
def extract_all_objects(self) -> T.List[T.Union[str, 'ExtractedObjects']]:
return self.target.extract_all_objects()
def get_custom_install_dir(self) -> T.List[T.Union[str, Literal[False]]]:
return self.target.get_custom_install_dir()
class ConfigurationData(HoldableObject):
def __init__(self, initial_values: T.Optional[T.Union[
T.Dict[str, T.Tuple[T.Union[str, int, bool], T.Optional[str]]],
T.Dict[str, T.Union[str, int, bool]]]
] = None):
super().__init__()
self.values: T.Dict[str, T.Tuple[T.Union[str, int, bool], T.Optional[str]]] = \
{k: v if isinstance(v, tuple) else (v, None) for k, v in initial_values.items()} if initial_values else {}
self.used: bool = False
def __repr__(self) -> str:
return repr(self.values)
def __contains__(self, value: str) -> bool:
return value in self.values
def __bool__(self) -> bool:
return bool(self.values)
def get(self, name: str) -> T.Tuple[T.Union[str, int, bool], T.Optional[str]]:
return self.values[name] # (val, desc)
def keys(self) -> T.Iterator[str]:
return self.values.keys()
# A bit poorly named, but this represents plain data files to copy
# during install.
@dataclass(eq=False)
class Data(HoldableObject):
sources: T.List[File]
install_dir: str
install_dir_name: str
install_mode: 'FileMode'
subproject: str
rename: T.List[str] = None
install_tag: T.Optional[str] = None
data_type: str = None
def __post_init__(self) -> None:
if self.rename is None:
self.rename = [os.path.basename(f.fname) for f in self.sources]
@dataclass(eq=False)
class SymlinkData(HoldableObject):
target: str
name: str
install_dir: str
subproject: str
install_tag: T.Optional[str] = None
def __post_init__(self) -> None:
if self.name != os.path.basename(self.name):
raise InvalidArguments(f'Link name is "{self.name}", but link names cannot contain path separators. '
'The dir part should be in install_dir.')
@dataclass(eq=False)
class TestSetup:
exe_wrapper: T.List[str]
gdb: bool
timeout_multiplier: int
env: EnvironmentVariables
exclude_suites: T.List[str]
def get_sources_string_names(sources, backend):
'''
For the specified list of @sources which can be strings, Files, or targets,
get all the output basenames.
'''
names = []
for s in sources:
if isinstance(s, str):
names.append(s)
elif isinstance(s, (BuildTarget, CustomTarget, CustomTargetIndex, GeneratedList)):
names += s.get_outputs()
elif isinstance(s, ExtractedObjects):
names += backend.determine_ext_objs(s)
elif isinstance(s, File):
names.append(s.fname)
else:
raise AssertionError(f'Unknown source type: {s!r}')
return names
def load(build_dir: str) -> Build:
filename = os.path.join(build_dir, 'meson-private', 'build.dat')
try:
b = pickle_load(filename, 'Build data', Build)
# We excluded coredata when saving Build object, load it separately
b.environment.coredata = coredata.load(build_dir)
return b
except FileNotFoundError:
raise MesonException(f'No such build data file as {filename!r}.')
def save(obj: Build, filename: str) -> None:
# Exclude coredata because we pickle it separately already
cdata = obj.environment.coredata
obj.environment.coredata = None
try:
with open(filename, 'wb') as f:
pickle.dump(obj, f)
finally:
obj.environment.coredata = cdata