# Copyright 2012-2017 The Meson development team # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # http://www.apache.org/licenses/LICENSE-2.0 # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import copy, os, re from collections import OrderedDict import itertools, pathlib from . import environment from . import dependencies from . import mlog from .mesonlib import File, MesonException, listify, extract_as_list from .mesonlib import typeslistify, stringlistify, classify_unity_sources from .mesonlib import get_filenames_templates_dict, substitute_values from .mesonlib import for_windows, for_darwin, for_cygwin from .compilers import is_object, clike_langs, sort_clike, lang_suffixes known_basic_kwargs = {'install': True, 'c_pch': True, 'cpp_pch': True, 'c_args': True, 'objc_args': True, 'objcpp_args': True, 'cpp_args': True, 'cs_args': True, 'vala_args': True, 'fortran_args': True, 'd_args': True, 'd_import_dirs': True, 'd_unittest': True, 'd_module_versions': True, 'java_args': True, 'rust_args': True, 'link_args': True, 'link_depends': True, 'link_with': True, 'link_whole': True, 'implicit_include_directories': True, 'include_directories': True, 'dependencies': True, 'install_dir': True, 'main_class': True, 'name_suffix': True, 'gui_app': True, 'extra_files': True, 'install_rpath': True, 'build_rpath': True, 'resources': True, 'sources': True, 'objects': True, 'native': True, 'build_by_default': True, 'override_options': True, } # These contain kwargs supported by both static and shared libraries. These are # combined here because a library() call might be shared_library() or # static_library() at runtime based on the configuration. # FIXME: Find a way to pass that info down here so we can have proper target # kwargs checking when specifically using shared_library() or static_library(). known_lib_kwargs = known_basic_kwargs.copy() known_lib_kwargs.update({'version': True, # Only for shared libs 'soversion': True, # Only for shared libs 'name_prefix': True, 'vs_module_defs': True, # Only for shared libs 'vala_header': True, 'vala_vapi': True, 'vala_gir': True, 'pic': True, # Only for static libs 'rust_crate_type': True, # Only for Rust libs }) known_exe_kwargs = known_basic_kwargs.copy() known_exe_kwargs.update({'implib': True, 'export_dynamic': True }) class InvalidArguments(MesonException): pass class Build: """A class that holds the status of one build including all dependencies and so on. """ def __init__(self, environment): self.project_name = 'name of master project' self.project_version = None self.environment = environment self.projects = {} self.targets = OrderedDict() self.compilers = OrderedDict() self.cross_compilers = OrderedDict() self.global_args = {} self.projects_args = {} self.global_link_args = {} self.projects_link_args = {} self.tests = [] self.benchmarks = [] self.headers = [] self.man = [] self.data = [] self.static_linker = None self.static_cross_linker = None self.subprojects = {} self.install_scripts = [] self.postconf_scripts = [] self.install_dirs = [] self.dep_manifest_name = None self.dep_manifest = {} self.cross_stdlibs = {} self.test_setups = {} def add_compiler(self, compiler): if self.static_linker is None and compiler.needs_static_linker(): self.static_linker = self.environment.detect_static_linker(compiler) lang = compiler.get_language() if lang not in self.compilers: self.compilers[lang] = compiler def add_cross_compiler(self, compiler): if not self.cross_compilers: self.static_cross_linker = self.environment.detect_static_linker(compiler) lang = compiler.get_language() if lang not in self.cross_compilers: self.cross_compilers[lang] = compiler def get_project(self): return self.projects[''] def get_targets(self): return self.targets def get_tests(self): return self.tests def get_benchmarks(self): return self.benchmarks def get_headers(self): return self.headers def get_man(self): return self.man def get_data(self): return self.data def get_install_subdirs(self): return self.install_dirs def get_global_args(self, compiler): return self.global_args.get(compiler.get_language(), []) def get_project_args(self, compiler, project): args = self.projects_args.get(project) if not args: return [] return args.get(compiler.get_language(), []) def get_global_link_args(self, compiler): return self.global_link_args.get(compiler.get_language(), []) def get_project_link_args(self, compiler, project): link_args = self.projects_link_args.get(project) if not link_args: return [] return link_args.get(compiler.get_language(), []) class IncludeDirs: def __init__(self, curdir, dirs, is_system, extra_build_dirs=None): self.curdir = curdir self.incdirs = dirs self.is_system = is_system # Interpreter has validated that all given directories # actually exist. if extra_build_dirs is None: self.extra_build_dirs = [] else: self.extra_build_dirs = extra_build_dirs def __repr__(self): r = '<{} {}/{}>' return r.format(self.__class__.__name__, self.curdir, self.incdirs) def get_curdir(self): return self.curdir def get_incdirs(self): return self.incdirs def get_extra_build_dirs(self): return self.extra_build_dirs class ExtractedObjects: ''' Holds a list of sources for which the objects must be extracted ''' def __init__(self, target, srclist, is_unity): self.target = target self.srclist = srclist if is_unity: self.check_unity_compatible() def __repr__(self): r = '<{0} {1!r}: {2}>' return r.format(self.__class__.__name__, self.target.name, self.srclist) def check_unity_compatible(self): # 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. # If the list of sources for which we want objects is the same as the # list of sources that go into each unified build, we're good. srclist_set = set(self.srclist) # Objects for all the sources are required, so we're compatible if srclist_set == set(self.target.sources): return # Check if the srclist is a subset (of the target's sources) that is # going to form a unified source file and a single object compsrcs = classify_unity_sources(self.target.compilers.values(), self.target.sources) for srcs in compsrcs.values(): if srclist_set == set(srcs): return msg = 'Single object files can not be extracted in Unity builds. ' \ 'You can only extract all the object files at once.' raise MesonException(msg) class EnvironmentVariables: def __init__(self): self.envvars = [] def __repr__(self): repr_str = "<{0}: {1}>" return repr_str.format(self.__class__.__name__, self.envvars) def get_value(self, values, kwargs): separator = kwargs.get('separator', os.pathsep) value = '' for var in values: value += separator + var return separator, value.strip(separator) def set(self, env, name, values, kwargs): return self.get_value(values, kwargs)[1] def append(self, env, name, values, kwargs): sep, value = self.get_value(values, kwargs) if name in env: return env[name] + sep + value return value def prepend(self, env, name, values, kwargs): sep, value = self.get_value(values, kwargs) if name in env: return value + sep + env[name] return value def get_env(self, full_env): env = {} for method, name, values, kwargs in self.envvars: env[name] = method(full_env, name, values, kwargs) return env class Target: def __init__(self, name, subdir, subproject, build_by_default): if '/' in name or '\\' in name: # Fix failing test 53 when this becomes an error. mlog.warning('''Target "%s" 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.''' % name) self.name = name self.subdir = subdir self.subproject = subproject self.build_by_default = build_by_default self.install = False self.build_always = False self.option_overrides = {} def get_basename(self): return self.name def get_subdir(self): return self.subdir def get_id(self): # This ID must also be a valid file name on all OSs. # It should also avoid shell metacharacters for obvious # reasons. base = self.name + self.type_suffix() if self.subproject == '': return base return self.subproject + '@@' + base def process_kwargs(self, kwargs): 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.') self.option_overrides = self.parse_overrides(kwargs) def parse_overrides(self, kwargs): result = {} overrides = stringlistify(kwargs.get('override_options', [])) for o in overrides: if '=' not in o: raise InvalidArguments('Overrides must be of form "key=value"') k, v = o.split('=', 1) k = k.strip() v = v.strip() result[k] = v return result class BuildTarget(Target): def __init__(self, name, subdir, subproject, is_cross, sources, objects, environment, kwargs): super().__init__(name, subdir, subproject, True) self.is_cross = is_cross unity_opt = environment.coredata.get_builtin_option('unity') self.is_unity = unity_opt == 'on' or (unity_opt == 'subprojects' and subproject != '') self.environment = environment self.sources = [] self.compilers = OrderedDict() self.objects = [] self.external_deps = [] self.include_dirs = [] self.link_targets = [] self.link_whole_targets = [] self.link_depends = [] 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 = {} self.extra_args = {} self.generated = [] self.extra_files = [] # Sources can be: # 1. Pre-existing source files in the source tree # 2. Pre-existing sources generated by configure_file in the build tree # 3. Sources files generated by another target or a Generator self.process_sourcelist(sources) # Objects can be: # 1. Pre-existing 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_compilers() self.process_kwargs(kwargs, environment) self.check_unknown_kwargs(kwargs) if not any([self.sources, self.generated, self.objects, self.link_whole]): raise InvalidArguments('Build target %s has no sources.' % name) self.process_compilers_late() self.validate_sources() self.validate_cross_install(environment) def __lt__(self, other): return self.get_id() < other.get_id() def __repr__(self): repr_str = "<{0} {1}: {2}>" return repr_str.format(self.__class__.__name__, self.get_id(), self.filename) def validate_cross_install(self, environment): if environment.is_cross_build() and not self.is_cross and self.install: raise InvalidArguments('Tried to install a natively built target 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, known_basic_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 %s: %s.' % (self.name, ', '.join(unknowns))) def process_objectlist(self, objects): assert(isinstance(objects, list)) for s in objects: if hasattr(s, 'held_object'): s = s.held_object if isinstance(s, (str, File, ExtractedObjects)): self.objects.append(s) elif isinstance(s, (GeneratedList, CustomTarget)): msg = 'Generated files are not allowed in the \'objects\' kwarg ' + \ 'for target {!r}.\nIt is meant only for '.format(self.name) + \ 'pre-built object files that are shipped with the\nsource ' + \ 'tree. Try adding it in the list of sources.' raise InvalidArguments(msg) else: msg = 'Bad object of type {!r} in target {!r}.'.format(type(s).__name__, self.name) raise InvalidArguments(msg) def process_sourcelist(self, sources): sources = listify(sources) added_sources = {} # If the same source is defined multiple times, use it only once. for s in sources: # Holder unpacking. Ugly. if hasattr(s, 'held_object'): s = s.held_object if isinstance(s, File): if s not in added_sources: self.sources.append(s) added_sources[s] = True elif isinstance(s, (GeneratedList, CustomTarget, CustomTargetIndex)): self.generated.append(s) else: msg = 'Bad source of type {!r} in target {!r}.'.format(type(s).__name__, self.name) raise InvalidArguments(msg) @staticmethod def can_compile_remove_sources(compiler, sources): 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. """ # Populate list of compilers if self.is_cross: compilers = self.environment.coredata.cross_compilers else: compilers = self.environment.coredata.compilers # 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: extra = set() for t in itertools.chain(self.link_targets, self.link_whole_targets): for name, compiler in t.compilers.items(): if name in clike_langs: extra.add((name, compiler)) for name, compiler in sorted(extra, key=lambda p: sort_clike(p[0])): 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 clike compiler # that we have and hope that it can link these objects for lang in clike_langs: if lang in compilers: self.compilers[lang] = compilers[lang] break def process_compilers(self): ''' 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. ''' if not self.sources and not self.generated and not self.objects: return # Populate list of compilers if self.is_cross: compilers = self.environment.coredata.cross_compilers else: compilers = self.environment.coredata.compilers # Pre-existing sources sources = list(self.sources) # All generated sources for gensrc in self.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) # Sources that were used to create our extracted objects for o in self.objects: if not isinstance(o, ExtractedObjects): continue for s in o.srclist: # 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 not s.endswith(lang_suffixes['vala']): sources.append(s) if sources: # For each source, try to add one compiler that can compile it. # It's ok if no compilers can do so, 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 compilers.items(): if compiler.can_compile(s): if lang not in self.compilers: self.compilers[lang] = compiler break # Re-sort according to clike_langs self.compilers = OrderedDict(sorted(self.compilers.items(), key=lambda t: sort_clike(t[0]))) # 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'] = compilers['c'] def validate_sources(self): if not self.sources: return for lang in ('cs', 'java'): if lang in self.compilers: check_sources = list(self.sources) compiler = self.compilers[lang] if not self.can_compile_remove_sources(compiler, check_sources): m = 'No {} sources found in target {!r}'.format(lang, self.name) raise InvalidArguments(m) if check_sources: m = '{0} targets can only contain {0} files:\n'.format(lang.capitalize()) m += '\n'.join([repr(c) for c in check_sources]) raise InvalidArguments(m) # CSharp and Java targets can't contain any other file types assert(len(self.compilers) == 1) return def process_link_depends(self, sources, environment): """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 hasattr(s, 'held_object'): s = s.held_object if isinstance(s, File): self.link_depends.append(s) elif isinstance(s, str): self.link_depends.append( File.from_source_file(environment.source_dir, self.subdir, s)) elif hasattr(s, 'get_outputs'): self.link_depends.extend( [File.from_built_file(s.subdir, p) for p in s.get_outputs()]) else: raise InvalidArguments( 'Link_depends arguments must be strings, Files, ' 'or a Custom Target, or lists thereof.') def get_original_kwargs(self): return self.kwargs def unpack_holder(self, d): d = listify(d) newd = [] for i in d: if isinstance(i, list): i = self.unpack_holder(i) elif hasattr(i, 'held_object'): i = i.held_object for t in ['dependencies', 'link_with', 'include_directories', 'sources']: if hasattr(i, t): setattr(i, t, self.unpack_holder(getattr(i, t))) newd.append(i) return newd def copy_kwargs(self, kwargs): self.kwargs = copy.copy(kwargs) # This sucks quite badly. Arguments # are holders but they can't be pickled # so unpack those known. for k, v in self.kwargs.items(): if isinstance(v, list): self.kwargs[k] = self.unpack_holder(v) if hasattr(v, 'held_object'): self.kwargs[k] = v.held_object for t in ['dependencies', 'link_with', 'include_directories', 'sources']: if t in self.kwargs: self.kwargs[t] = self.unpack_holder(self.kwargs[t]) def extract_objects(self, srclist): obj_src = [] for src in srclist: if not isinstance(src, str): raise MesonException('Object extraction arguments must be strings.') src = File(False, self.subdir, src) if src not in self.sources: raise MesonException('Tried to extract unknown source %s.' % src) obj_src.append(src) return ExtractedObjects(self, obj_src, self.is_unity) def extract_all_objects(self): return ExtractedObjects(self, self.sources, self.is_unity) def get_all_link_deps(self): return self.get_transitive_link_deps() def get_transitive_link_deps(self): result = [] for i in self.link_targets: result += i.get_all_link_deps() return result def get_custom_install_dir(self): return self.install_dir def process_kwargs(self, kwargs, environment): super().process_kwargs(kwargs) self.copy_kwargs(kwargs) kwargs.get('modules', []) self.need_install = kwargs.get('install', self.need_install) llist = extract_as_list(kwargs, 'link_with') for linktarget in llist: # Sorry for this hack. Keyword targets are kept in holders # in kwargs. Unpack here without looking at the exact type. if hasattr(linktarget, "held_object"): linktarget = linktarget.held_object if isinstance(linktarget, dependencies.ExternalLibrary): raise MesonException('''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.''') self.link(linktarget) lwhole = extract_as_list(kwargs, 'link_whole') for linktarget in lwhole: # Sorry for this hack. Keyword targets are kept in holders # in kwargs. Unpack here without looking at the exact type. if hasattr(linktarget, "held_object"): linktarget = linktarget.held_object self.link_whole(linktarget) c_pchlist, cpp_pchlist, clist, cpplist, cslist, valalist, objclist, objcpplist, fortranlist, rustlist \ = extract_as_list(kwargs, 'c_pch', 'cpp_pch', 'c_args', 'cpp_args', 'cs_args', 'vala_args', 'objc_args', 'objcpp_args', 'fortran_args', 'rust_args') self.add_pch('c', c_pchlist) self.add_pch('cpp', cpp_pchlist) compiler_args = {'c': clist, 'cpp': cpplist, 'cs': cslist, 'vala': valalist, 'objc': objclist, 'objcpp': objcpplist, 'fortran': fortranlist, 'rust': rustlist } for key, value in compiler_args.items(): self.add_compiler_args(key, value) if not isinstance(self, Executable): 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) dlist = stringlistify(kwargs.get('d_args', [])) self.add_compiler_args('d', dlist) dfeatures = dict() dfeature_unittest = kwargs.get('d_unittest', False) if dfeature_unittest: dfeatures['unittest'] = dfeature_unittest dfeature_versions = kwargs.get('d_module_versions', None) if dfeature_versions: dfeatures['versions'] = dfeature_versions dfeature_import_dirs = kwargs.get('d_import_dirs', None) if dfeature_import_dirs: dfeatures['import_dirs'] = dfeature_import_dirs if dfeatures: if 'd' in self.compilers: self.add_compiler_args('d', self.compilers['d'].get_feature_args(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('''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', []), environment) # 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', [None]), (str, bool)) 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): self.gui_app = kwargs.get('gui_app', False) if not isinstance(self.gui_app, bool): raise InvalidArguments('Argument gui_app must be boolean.') elif 'gui_app' in kwargs: raise InvalidArguments('Argument gui_app can only be used on executables.') extra_files = extract_as_list(kwargs, 'extra_files') for i in extra_files: assert(isinstance(i, File)) trial = os.path.join(environment.get_source_dir(), i.subdir, i.fname) if not(os.path.isfile(trial)): raise InvalidArguments('Tried to add non-existing extra file %s.' % i) self.extra_files = extra_files self.install_rpath = 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(environment.get_source_dir(), self.subdir, r) if not os.path.isfile(trial): raise InvalidArguments('Tried to add non-existing resource %s.' % 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 null.') elif 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 null.') else: if not isinstance(name_suffix, str): raise InvalidArguments('name_suffix must be a string.') 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) if for_darwin(self.is_cross, self.environment) or for_windows(self.is_cross, self.environment): self.pic = True elif '-fPIC' in clist + cpplist: mlog.warning("Use the 'pic' kwarg instead of passing -fPIC manually to static library {!r}".format(self.name)) self.pic = True else: self.pic = kwargs.get('pic', False) if not isinstance(self.pic, bool): raise InvalidArguments('Argument pic to static library {!r} must be boolean'.format(self.name)) 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.') def get_filename(self): return self.filename def get_outputs(self): return self.outputs def get_extra_args(self, language): return self.extra_args.get(language, []) def get_dependencies(self): transitive_deps = [] for t in self.link_targets + self.link_whole_targets: transitive_deps.append(t) if isinstance(t, StaticLibrary): transitive_deps += t.get_dependencies() return transitive_deps def get_source_subdir(self): return self.subdir def get_sources(self): return self.sources def get_objects(self): return self.objects def get_generated_sources(self): return self.generated def should_install(self): return self.need_install def has_pch(self): return len(self.pch) > 0 def get_pch(self, language): try: return self.pch[language] except KeyError: return[] def get_include_dirs(self): return self.include_dirs def add_deps(self, deps): deps = listify(deps) for dep in deps: if hasattr(dep, 'held_object'): dep = dep.held_object if isinstance(dep, dependencies.InternalDependency): # Those parts that are internal. self.process_sourcelist(dep.sources) self.add_include_dirs(dep.include_directories) for l in dep.libraries: self.link(l) # Those parts that are external. extpart = dependencies.InternalDependency('undefined', [], dep.compile_args, dep.link_args, [], [], []) self.external_deps.append(extpart) # Deps of deps. self.add_deps(dep.ext_deps) elif isinstance(dep, dependencies.Dependency): self.external_deps.append(dep) self.process_sourcelist(dep.get_sources()) 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, '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('Argument is of an unacceptable type {!r}.\nMust be ' 'either an external dependency (returned by find_library() or ' 'dependency()) or an internal dependency (returned by ' 'declare_dependency()).'.format(type(dep).__name__)) def get_external_deps(self): return self.external_deps def link(self, target): for t in listify(target, unholder=True): if not isinstance(t, Target): raise InvalidArguments('{!r} is not a target.'.format(t)) if not t.is_linkable_target(): raise InvalidArguments('Link target {!r} is not linkable.'.format(t)) if isinstance(self, SharedLibrary) and isinstance(t, StaticLibrary) and not t.pic: msg = "Can't link non-PIC static library {!r} into shared library {!r}. ".format(t.name, self.name) msg += "Use the 'pic' option to static_library to build with PIC." raise InvalidArguments(msg) if self.is_cross != t.is_cross: raise InvalidArguments('Tried to mix cross built and native libraries in target {!r}'.format(self.name)) self.link_targets.append(t) def link_whole(self, target): for t in listify(target, unholder=True): if not isinstance(t, StaticLibrary): raise InvalidArguments('{!r} is not a static library.'.format(t)) if isinstance(self, SharedLibrary) and not t.pic: msg = "Can't link non-PIC static library {!r} into shared library {!r}. ".format(t.name, self.name) msg += "Use the 'pic' option to static_library to build with PIC." raise InvalidArguments(msg) if self.is_cross != t.is_cross: raise InvalidArguments('Tried to mix cross built and native libraries in target {!r}'.format(self.name)) self.link_whole_targets.append(t) def add_pch(self, language, pchlist): if not pchlist: return elif len(pchlist) == 1: if not environment.is_header(pchlist[0]): raise InvalidArguments('PCH argument %s is not a header.' % pchlist[0]) 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('PCH argument %s is of unknown type.' % pchlist[0]) elif len(pchlist) > 2: raise InvalidArguments('PCH definition may have a maximum of 2 files.') self.pch[language] = pchlist def add_include_dirs(self, args): ids = [] for a in args: # FIXME same hack, forcibly unpack from holder. if hasattr(a, 'held_object'): a = a.held_object if not isinstance(a, IncludeDirs): raise InvalidArguments('Include directory to be added is not an include directory object.') ids.append(a) self.include_dirs += ids def add_compiler_args(self, language, args): 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): return {} def get_langs_used_by_deps(self): ''' 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 clike_langs for the priority order. See: https://github.com/mesonbuild/meson/issues/1653 ''' langs = [] # Check if any of the external libraries were written in this language for dep in self.external_deps: 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): for language in link_target.compilers: if language not in langs: langs.append(language) return langs def get_clike_dynamic_linker(self): ''' We use the order of languages in `clike_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. ''' # Populate list of all compilers, not just those being used to compile # sources in this target if self.is_cross: all_compilers = self.environment.coredata.cross_compilers else: all_compilers = self.environment.coredata.compilers # Languages used by dependencies dep_langs = self.get_langs_used_by_deps() # Pick a compiler based on the language priority-order for l in clike_langs: if l in self.compilers or l in dep_langs: try: return all_compilers[l] except KeyError: raise MesonException( 'Could not get a dynamic linker for build target {!r}. ' 'Requires a linker for language "{}", but that is not ' 'a project language.'.format(self.name, l)) m = 'Could not get a dynamic linker for build target {!r}' raise AssertionError(m.format(self.name)) def get_using_msvc(self): ''' 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. ''' linker = self.get_clike_dynamic_linker() if linker and linker.get_id() == 'msvc': return True return False def is_linkable_target(self): return False class Generator: def __init__(self, args, kwargs): if len(args) != 1: raise InvalidArguments('Generator requires exactly one positional argument: the executable') exe = args[0] if hasattr(exe, 'held_object'): exe = exe.held_object if not isinstance(exe, (Executable, dependencies.ExternalProgram)): raise InvalidArguments('First generator argument must be an executable.') self.exe = exe self.depfile = None self.capture = False self.process_kwargs(kwargs) def __repr__(self): repr_str = "<{0}: {1}>" return repr_str.format(self.__class__.__name__, self.exe) def get_exe(self): return self.exe def process_kwargs(self, kwargs): if 'arguments' not in kwargs: raise InvalidArguments('Generator must have "arguments" keyword argument.') args = kwargs['arguments'] if isinstance(args, str): args = [args] if not isinstance(args, list): raise InvalidArguments('"Arguments" keyword argument must be a string or a list of strings.') for a in args: if not isinstance(a, str): raise InvalidArguments('A non-string object in "arguments" keyword argument.') self.arglist = args if 'output' not in kwargs: raise InvalidArguments('Generator must have "output" keyword argument.') outputs = listify(kwargs['output']) for rule in outputs: if not isinstance(rule, str): raise InvalidArguments('"output" may only contain strings.') if '@BASENAME@' not in rule and '@PLAINNAME@' not in rule: raise InvalidArguments('Every element of "output" must contain @BASENAME@ or @PLAINNAME@.') if '/' in rule or '\\' in rule: raise InvalidArguments('"outputs" must not contain a directory separator.') if len(outputs) > 1: for o in outputs: if '@OUTPUT@' in o: raise InvalidArguments('Tried to use @OUTPUT@ in a rule with more than one output.') self.outputs = outputs if 'depfile' in kwargs: depfile = kwargs['depfile'] if not isinstance(depfile, str): raise InvalidArguments('Depfile must be a string.') if os.path.split(depfile)[1] != depfile: raise InvalidArguments('Depfile must be a plain filename without a subdirectory.') self.depfile = depfile if 'capture' in kwargs: capture = kwargs['capture'] if not isinstance(capture, bool): raise InvalidArguments('Capture must be boolean.') self.capture = capture def get_base_outnames(self, inname): plainname = os.path.split(inname)[1] 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): if self.depfile is None: raise InvalidArguments('Tried to get dep name for rule that does not have dependency file defined.') plainname = os.path.split(inname)[1] basename = os.path.splitext(plainname)[0] return self.depfile.replace('@BASENAME@', basename).replace('@PLAINNAME@', plainname) def get_arglist(self, inname): plainname = os.path.split(inname)[1] basename = os.path.splitext(plainname)[0] return [x.replace('@BASENAME@', basename).replace('@PLAINNAME@', plainname) for x in self.arglist] def is_parent_path(self, parent, trial): relpath = pathlib.PurePath(trial).relative_to(parent) return relpath.parts[0] != '..' # For subdirs we can only go "down". def process_files(self, name, files, state, preserve_path_from=None, extra_args=[]): output = GeneratedList(self, state.subdir, preserve_path_from, extra_args=extra_args) for f in files: if isinstance(f, str): f = File.from_source_file(state.environment.source_dir, state.subdir, f) elif not isinstance(f, File): raise InvalidArguments('{} arguments must be strings or files not {!r}.'.format(name, f)) 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('When using preserve_path_from, all input files must be in a subdirectory of the given dir.') output.add_file(f, state) return output class GeneratedList: def __init__(self, generator, subdir, preserve_path_from=None, extra_args=[]): if hasattr(generator, 'held_object'): generator = generator.held_object self.generator = generator self.name = self.generator.exe self.subdir = subdir self.infilelist = [] self.outfilelist = [] self.outmap = {} self.extra_depends = [] self.preserve_path_from = preserve_path_from self.extra_args = extra_args def add_preserved_path_segment(self, infile, outfiles, state): result = [] 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.split(rel)[0] for of in outfiles: result.append(os.path.join(path_segment, of)) return result def add_file(self, newfile, state): 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): return self.infilelist def get_outputs(self): return self.outfilelist def get_outputs_for(self, filename): return self.outmap[filename] def get_generator(self): return self.generator def get_extra_args(self): return self.extra_args class Executable(BuildTarget): def __init__(self, name, subdir, subproject, is_cross, sources, objects, environment, kwargs): super().__init__(name, subdir, subproject, is_cross, sources, objects, environment, kwargs) # 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 (for_windows(is_cross, environment) or for_cygwin(is_cross, environment) or 'cs' in self.compilers): self.suffix = 'exe' else: self.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 # Check for export_dynamic self.export_dynamic = False if kwargs.get('export_dynamic'): if not isinstance(kwargs['export_dynamic'], bool): raise InvalidArguments('"export_dynamic" keyword argument must be a boolean') self.export_dynamic = True if kwargs.get('implib'): self.export_dynamic = True if self.export_dynamic and kwargs.get('implib') is False: raise InvalidArguments('"implib" keyword argument must not be false for if "export_dynamic" is true') # If using export_dynamic, set the import library name if self.export_dynamic: implib_basename = self.name + '.exe' if not isinstance(kwargs.get('implib', False), bool): implib_basename = kwargs['implib'] if for_windows(is_cross, environment) or for_cygwin(is_cross, environment): self.vs_import_filename = '{0}.lib'.format(implib_basename) self.gcc_import_filename = 'lib{0}.a'.format(implib_basename) if self.get_using_msvc(): self.import_filename = self.vs_import_filename else: self.import_filename = self.gcc_import_filename # Only linkwithable if using export_dynamic self.is_linkwithable = self.export_dynamic def type_suffix(self): return "@exe" def check_unknown_kwargs(self, kwargs): self.check_unknown_kwargs_int(kwargs, known_exe_kwargs) def get_import_filename(self): """ 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 is_linkable_target(self): return self.is_linkwithable class StaticLibrary(BuildTarget): def __init__(self, name, subdir, subproject, is_cross, sources, objects, environment, kwargs): if 'pic' not in kwargs and 'b_staticpic' in environment.coredata.base_options: kwargs['pic'] = environment.coredata.base_options['b_staticpic'].value super().__init__(name, subdir, subproject, is_cross, sources, objects, environment, kwargs) 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('Crate type "{0}" invalid for static libraries; must be "rlib" or "staticlib"'.format(self.rust_crate_type)) # 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 type_suffix(self): return "@sta" def check_unknown_kwargs(self, kwargs): self.check_unknown_kwargs_int(kwargs, known_lib_kwargs) def process_kwargs(self, kwargs, environment): super().process_kwargs(kwargs, environment) 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('Invalid rust_crate_type "{0}": must be a string.'.format(rust_crate_type)) def is_linkable_target(self): return True class SharedLibrary(BuildTarget): def __init__(self, name, subdir, subproject, is_cross, sources, objects, environment, kwargs): self.soversion = None self.ltversion = None 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 super().__init__(name, subdir, subproject, is_cross, sources, objects, environment, kwargs) 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']: raise InvalidArguments('Crate type "{0}" invalid for dynamic libraries; must be "dylib" or "cdylib"'.format(self.rust_crate_type)) 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(is_cross, environment) def determine_filenames(self, is_cross, env): """ 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 = '' self.filename_tpl = self.basic_filename_tpl # If the user already provided the prefix and suffix to us, we don't # need to do any filename suffix/prefix detection. # NOTE: manual prefix/suffix override is currently only tested for C/C++ if self.prefix is not None and self.suffix is not None: pass # C# and Mono elif 'cs' in self.compilers: prefix = '' suffix = 'dll' self.filename_tpl = '{0.prefix}{0.name}.{0.suffix}' # C, C++, Swift, Vala # Only Windows uses a separate import library for linking # For all other targets/platforms import_filename stays None elif for_windows(is_cross, env): suffix = 'dll' self.vs_import_filename = '{0}.lib'.format(self.name) self.gcc_import_filename = 'lib{0}.dll.a'.format(self.name) if 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 # 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 for_cygwin(is_cross, env): suffix = 'dll' self.gcc_import_filename = 'lib{0}.dll.a'.format(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 for_darwin(is_cross, env): 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}' 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) self.outputs = [self.filename] def process_kwargs(self, kwargs, environment): super().process_kwargs(kwargs, environment) # 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('Invalid Shared library version "{0}". Must be of the form X.Y.Z where all three are numbers. Y and Z are optional.'.format(self.ltversion)) # 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] # Visual Studio module-definitions file if 'vs_module_defs' in kwargs: path = kwargs['vs_module_defs'] if hasattr(path, 'held_object'): path = path.held_object 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(environment.source_dir, self.subdir, path) self.link_depends.append(self.vs_module_defs) elif isinstance(path, File): # When passing a generated file. self.vs_module_defs = path self.link_depends.append(path) elif hasattr(path, 'get_filename'): # When passing output of a Custom Target path = File.from_built_file(path.subdir, path.get_filename()) self.vs_module_defs = path self.link_depends.append(path) else: raise InvalidArguments( 'Shared library vs_module_defs must be either a string, ' 'a file object or a Custom Target') 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('Invalid rust_crate_type "{0}": must be a string.'.format(rust_crate_type)) def check_unknown_kwargs(self, kwargs): self.check_unknown_kwargs_int(kwargs, known_lib_kwargs) def get_import_filename(self): """ 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_all_link_deps(self): return [self] + self.get_transitive_link_deps() def get_aliases(self): """ 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 = {} # 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 {} # 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) aliases[ltversion_filename] = self.filename # 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 aliases[self.basic_filename_tpl.format(self)] = ltversion_filename 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): def __init__(self, name, subdir, subproject, is_cross, sources, objects, environment, 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, is_cross, sources, objects, environment, kwargs) self.import_filename = None class CustomTarget(Target): known_kwargs = {'input': True, 'output': True, 'command': True, 'capture': False, 'install': True, 'install_dir': True, 'build_always': True, 'depends': True, 'depend_files': True, 'depfile': True, 'build_by_default': True, 'override_options': True, } def __init__(self, name, subdir, subproject, kwargs, absolute_paths=False): super().__init__(name, subdir, subproject, False) self.dependencies = [] self.extra_depends = [] self.depend_files = [] # Files that this target depends on but are not on the command line. self.depfile = None self.process_kwargs(kwargs) self.extra_files = [] # Whether to use absolute paths for all files on the commandline self.absolute_paths = absolute_paths unknowns = [] for k in kwargs: if k not in CustomTarget.known_kwargs: unknowns.append(k) if len(unknowns) > 0: mlog.warning('Unknown keyword arguments in target %s: %s' % (self.name, ', '.join(unknowns))) def __lt__(self, other): return self.get_id() < other.get_id() def __repr__(self): repr_str = "<{0} {1}: {2}>" return repr_str.format(self.__class__.__name__, self.get_id(), self.command) def get_id(self): return self.name + self.type_suffix() def get_target_dependencies(self): deps = self.dependencies[:] deps += self.extra_depends for c in self.sources: if hasattr(c, 'held_object'): c = c.held_object if isinstance(c, (BuildTarget, CustomTarget)): deps.append(c) return deps def get_transitive_build_target_deps(self): ''' 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 = 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 flatten_command(self, cmd): cmd = listify(cmd, unholder=True) final_cmd = [] 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, dependencies.ExternalProgram): if not c.found(): m = 'Tried to use not-found external program {!r} in "command"' raise InvalidArguments(m.format(c.name)) self.depend_files.append(File.from_absolute_file(c.get_path())) final_cmd += c.get_command() elif isinstance(c, (BuildTarget, CustomTarget)): self.dependencies.append(c) final_cmd.append(c) elif isinstance(c, list): final_cmd += self.flatten_command(c) else: raise InvalidArguments('Argument {!r} in "command" is invalid'.format(c)) return final_cmd def process_kwargs(self, kwargs): super().process_kwargs(kwargs) self.sources = extract_as_list(kwargs, 'input', unholder=True) if 'output' not in kwargs: raise InvalidArguments('Missing keyword argument "output".') self.outputs = listify(kwargs['output']) # This will substitute values from the input into output and return it. inputs = get_sources_string_names(self.sources) values = get_filenames_templates_dict(inputs, []) for i in self.outputs: if not(isinstance(i, str)): raise InvalidArguments('Output argument not a string.') if '/' in i: raise InvalidArguments('Output must not contain a path segment.') if '@INPUT@' in i or '@INPUT0@' in i: m = 'Output cannot contain @INPUT@ or @INPUT0@, did you ' \ 'mean @PLAINNAME@ or @BASENAME@?' raise InvalidArguments(m) # We already check this during substitution, but the error message # will be unclear/confusing, so check it here. if len(inputs) != 1 and ('@PLAINNAME@' in i or '@BASENAME@' in i): m = "Output cannot contain @PLAINNAME@ or @BASENAME@ when " \ "there is more than one input (we can't know which to use)" raise InvalidArguments(m) self.outputs = substitute_values(self.outputs, values) self.capture = kwargs.get('capture', False) if self.capture and len(self.outputs) != 1: raise InvalidArguments('Capturing can only output to a single file.') if 'command' not in kwargs: raise InvalidArguments('Missing keyword argument "command".') if 'depfile' in kwargs: depfile = kwargs['depfile'] if not isinstance(depfile, str): raise InvalidArguments('Depfile must be a string.') if os.path.split(depfile)[1] != depfile: raise InvalidArguments('Depfile must be a plain filename without a subdirectory.') self.depfile = depfile self.command = self.flatten_command(kwargs['command']) if self.capture: for c in self.command: if isinstance(c, str) and '@OUTPUT@' in c: raise InvalidArguments('@OUTPUT@ is not allowed when capturing output.') if 'install' in kwargs: self.install = kwargs['install'] if not isinstance(self.install, bool): raise InvalidArguments('"install" must be boolean.') if self.install: if 'install_dir' not in kwargs: raise InvalidArguments('"install_dir" must be specified ' 'when installing a target') # 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['install_dir'], (str, bool)) else: self.install = False self.install_dir = [None] self.build_always = kwargs.get('build_always', False) if not isinstance(self.build_always, bool): raise InvalidArguments('Argument build_always must be a boolean.') extra_deps, depend_files = extract_as_list(kwargs, 'depends', 'depend_files', pop = False) for ed in extra_deps: while hasattr(ed, 'held_object'): ed = ed.held_object if not isinstance(ed, (CustomTarget, BuildTarget)): raise InvalidArguments('Can only depend on toplevel targets: custom_target or build_target (executable or a library)') self.extra_depends.append(ed) for i in depend_files: if isinstance(i, (File, str)): self.depend_files.append(i) else: mlog.debug(i) raise InvalidArguments('Unknown type {!r} in depend_files.'.format(type(i).__name__)) def get_dependencies(self): return self.dependencies def should_install(self): return self.install def get_custom_install_dir(self): return self.install_dir def get_outputs(self): return self.outputs def get_filename(self): return self.outputs[0] def get_sources(self): return self.sources def get_generated_lists(self): genlists = [] for c in self.sources: if hasattr(c, 'held_object'): c = c.held_object if isinstance(c, GeneratedList): genlists.append(c) return genlists def get_generated_sources(self): return self.get_generated_lists() def type_suffix(self): return "@cus" def __getitem__(self, index): return CustomTargetIndex(self, self.outputs[index]) def __setitem__(self, index, value): raise NotImplementedError def __delitem__(self, index): raise NotImplementedError class RunTarget(Target): def __init__(self, name, command, args, dependencies, subdir, subproject): super().__init__(name, subdir, subproject, False) self.command = command self.args = args self.dependencies = dependencies def __lt__(self, other): return self.get_id() < other.get_id() def __repr__(self): repr_str = "<{0} {1}: {2}>" return repr_str.format(self.__class__.__name__, self.get_id(), self.command) def get_dependencies(self): return self.dependencies def get_generated_sources(self): return [] def get_sources(self): return [] def should_install(self): return False def get_filename(self): return self.name def type_suffix(self): return "@run" class Jar(BuildTarget): def __init__(self, name, subdir, subproject, is_cross, sources, objects, environment, kwargs): super().__init__(name, subdir, subproject, is_cross, sources, objects, environment, kwargs) for s in self.sources: if not s.endswith('.java'): raise InvalidArguments('Jar source %s is not a java file.' % s) self.filename = self.name + '.jar' self.outputs = [self.filename] self.java_args = kwargs.get('java_args', []) 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 validate_cross_install(self, environment): # All jar targets are installable. pass class CustomTargetIndex: """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. """ def __init__(self, target, output): self.target = target self.output = output def __repr__(self): return ''.format( self.target, self.target.get_outputs().index(self.output)) def get_outputs(self): return [self.output] def get_subdir(self): return self.target.get_subdir() class ConfigureFile: def __init__(self, subdir, sourcename, targetname, configuration_data): self.subdir = subdir self.sourcename = sourcename self.targetname = targetname self.configuration_data = configuration_data def __repr__(self): repr_str = "<{0}: {1} -> {2}>" src = os.path.join(self.subdir, self.sourcename) dst = os.path.join(self.subdir, self.targetname) return repr_str.format(self.__class__.__name__, src, dst) def get_configuration_data(self): return self.configuration_data def get_subdir(self): return self.subdir def get_source_name(self): return self.sourcename def get_target_name(self): return self.targetname class ConfigurationData: def __init__(self): super().__init__() self.values = {} def __repr__(self): return repr(self.values) def __contains__(self, value): return value in self.values def get(self, name): return self.values[name] # (val, desc) def keys(self): return self.values.keys() # A bit poorly named, but this represents plain data files to copy # during install. class Data: def __init__(self, sources, install_dir, install_mode=None): self.sources = sources self.install_dir = install_dir self.install_mode = install_mode self.sources = listify(self.sources) for s in self.sources: assert(isinstance(s, File)) class RunScript(dict): def __init__(self, script, args): super().__init__() assert(isinstance(script, list)) assert(isinstance(args, list)) self['exe'] = script self['args'] = args class TestSetup: def __init__(self, *, exe_wrapper=None, gdb=None, timeout_multiplier=None, env=None): self.exe_wrapper = exe_wrapper self.gdb = gdb self.timeout_multiplier = timeout_multiplier self.env = env def get_sources_string_names(sources): ''' For the specified list of @sources which can be strings, Files, or targets, get all the output basenames. ''' names = [] for s in sources: if hasattr(s, 'held_object'): s = s.held_object if isinstance(s, str): names.append(s) elif isinstance(s, (BuildTarget, CustomTarget, GeneratedList)): names += s.get_outputs() elif isinstance(s, File): names.append(s.fname) else: raise AssertionError('Unknown source type: {!r}'.format(s)) return names