# 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 . import environment from . import dependencies from . import mlog import copy, os, re from .mesonlib import File, flatten, MesonException, stringlistify, classify_unity_sources from .environment import for_windows, for_darwin from .compilers import is_object, clike_langs, lang_suffixes known_basic_kwargs = {'install': True, 'c_pch': True, 'cpp_pch': True, 'c_args': True, 'cpp_args': True, 'cs_args': True, 'vala_args': True, 'fortran_args': True, 'd_args': True, 'java_args': True, 'link_args': True, 'link_depends': True, 'link_with': True, 'include_directories': True, 'dependencies': True, 'install_dir': True, 'main_class': True, 'gui_app': True, 'extra_files': True, 'install_rpath': True, 'resources': True, 'sources': True, 'objects': True, 'native': True, 'build_by_default': 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, 'name_suffix': True, 'vs_module_defs': True, # Only for shared libs 'vala_header': True, 'vala_vapi': True, 'vala_gir': True, 'pic': True, # Only for static libs }) 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 = {} self.compilers = {} self.cross_compilers = {} 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 len(self.cross_compilers) == 0: 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) def get_want_all_objects(self): return self.want_all_objects class EnvironmentVariables: def __init__(self): self.envvars = [] def get_value(self, name, 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(name, values, kwargs)[1] def append(self, env, name, values, kwargs): sep, value = self.get_value(name, 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(name, 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, build_by_default): self.name = name self.subdir = subdir self.build_by_default = build_by_default self.install = False self.build_always = False def get_basename(self): return self.name def get_subdir(self): return self.subdir 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.') class BuildTarget(Target): def __init__(self, name, subdir, subproject, is_cross, sources, objects, environment, kwargs): super().__init__(name, subdir, True) self.subproject = subproject # Can not be calculated from subdir as subproject dirname can be changed per project. self.is_cross = is_cross self.is_unity = environment.coredata.get_builtin_option('unity') self.environment = environment self.sources = [] self.compilers = {} self.objects = [] self.external_deps = [] self.include_dirs = [] self.link_targets = [] self.link_depends = [] self.name_prefix_set = False self.name_suffix_set = False self.filename = 'no_name' # The file with debugging symbols self.debug_filename = None 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_kwargs(kwargs, environment) self.check_unknown_kwargs(kwargs) if len(self.sources) == 0 \ and len(self.generated) == 0 \ and len(self.objects) == 0: raise InvalidArguments('Build target %s has no sources.' % name) self.process_compilers() self.validate_sources() def __repr__(self): repr_str = "<{0} {1}: {2}>" return repr_str.format(self.__class__.__name__, self.get_id(), self.filename) 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 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): if not isinstance(sources, list): sources = [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)): 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_sources(compiler, sources): for s in sources: if compiler.can_compile(s): return True return False @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(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 len(self.sources) + len(self.generated) + len(self.objects) == 0: 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: # Add compilers based on the above sources for lang, compiler in compilers.items(): # We try to be conservative because sometimes people add files # in the list of sources that we can't determine the type based # just on the suffix. if self.can_compile_sources(compiler, sources): self.compilers[lang] = compiler else: # No source files, 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 # 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 len(self.sources) == 0: 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 if 'rust' in self.compilers: firstname = self.sources[0] if isinstance(firstname, File): firstname = firstname.fname first = os.path.split(firstname)[1] (base, suffix) = os.path.splitext(first) if suffix != '.rs' or self.name != base: raise InvalidArguments('In Rust targets, the first source file must be named projectname.rs.') def get_original_kwargs(self): return self.kwargs def unpack_holder(self, d): if not isinstance(d, list): d = [d] newd = [] for i in d: if hasattr(i, 'held_object'): newd.append(i.held_object) else: 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. if 'dependencies' in self.kwargs: self.kwargs['dependencies'] = self.unpack_holder(self.kwargs['dependencies']) if 'link_with' in self.kwargs: self.kwargs['link_with'] = self.unpack_holder(self.kwargs['link_with']) 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.custom_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 = kwargs.get('link_with', []) if not isinstance(llist, list): llist = [llist] 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 self.link(linktarget) c_pchlist = kwargs.get('c_pch', []) if not isinstance(c_pchlist, list): c_pchlist = [c_pchlist] self.add_pch('c', c_pchlist) cpp_pchlist = kwargs.get('cpp_pch', []) if not isinstance(cpp_pchlist, list): cpp_pchlist = [cpp_pchlist] self.add_pch('cpp', cpp_pchlist) clist = kwargs.get('c_args', []) if not isinstance(clist, list): clist = [clist] self.add_compiler_args('c', clist) cpplist = kwargs.get('cpp_args', []) if not isinstance(cpplist, list): cpplist = [cpplist] self.add_compiler_args('cpp', cpplist) cslist = kwargs.get('cs_args', []) if not isinstance(cslist, list): cslist = [cslist] self.add_compiler_args('cs', cslist) valalist = kwargs.get('vala_args', []) if not isinstance(valalist, list): valalist = [valalist] self.add_compiler_args('vala', valalist) fortranlist = kwargs.get('fortran_args', []) if not isinstance(fortranlist, list): fortranlist = [fortranlist] self.add_compiler_args('fortran', fortranlist) 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) self.link_args = kwargs.get('link_args', []) if not isinstance(self.link_args, list): self.link_args = [self.link_args] for i in self.link_args: if not isinstance(i, str): raise InvalidArguments('Link_args arguments must be strings.') self.link_depends = kwargs.get('link_depends', []) if not isinstance(self.link_depends, list): self.link_depends = [self.link_depends] for i in self.link_depends: if not isinstance(i, str): raise InvalidArguments('Link_depends arguments must be strings.') deplist = kwargs.get('dependencies', []) if not isinstance(deplist, list): deplist = [deplist] self.add_deps(deplist) # Target-specific include dirs must be added after include dirs from # internal deps (added inside self.add_deps()) to override correctly. inclist = kwargs.get('include_directories', []) if not isinstance(inclist, list): inclist = [inclist] self.add_include_dirs(inclist) self.custom_install_dir = kwargs.get('install_dir', None) if self.custom_install_dir is not None: if not isinstance(self.custom_install_dir, str): raise InvalidArguments('Custom_install_dir must be a string') 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 = kwargs.get('extra_files', []) if isinstance(extra_files, str): extra_files = [extra_files] for i in extra_files: if not isinstance(i, str): raise InvalidArguments('Arguments to extra_files must be strings.') trial = os.path.join(environment.get_source_dir(), self.subdir, i) 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.') resources = kwargs.get('resources', []) if not isinstance(resources, list): resources = [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 len(name_prefix) != 0: 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 len(name_suffix) != 0: 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)) def get_filename(self): return self.filename def get_outputs(self): return [self.filename] def get_debug_filename(self): """ The name of the file that contains debugging symbols for this target Returns None if there are no debugging symbols or if they are embedded in the filename itself """ return self.debug_filename def get_extra_args(self, language): return self.extra_args.get(language, []) def get_dependencies(self): transitive_deps = [] for t in self.link_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): if not isinstance(deps, list): deps = [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, '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): if not isinstance(target, list): target = [target] for t in target: if hasattr(t, 'held_object'): t = t.held_object if not isinstance(t, (StaticLibrary, SharedLibrary)): raise InvalidArguments('Link target {!r} is not library.'.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 add_pch(self, language, pchlist): if len(pchlist) == 0: 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 = flatten(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_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. ''' for l in clike_langs: if l in self.compilers: return self.compilers[l] 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 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.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 = kwargs['output'] if not isinstance(outputs, list): outputs = [outputs] 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 def get_base_outnames(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.outputs] 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): return self.arglist def process_files(self, name, files, state, extra_args=[]): output = GeneratedList(self, 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)) output.add_file(f) return output class GeneratedList: def __init__(self, generator, extra_args=[]): if hasattr(generator, 'held_object'): generator = generator.held_object self.generator = generator self.name = self.generator.exe self.infilelist = [] self.outfilelist = [] self.outmap = {} self.extra_depends = [] self.extra_args = extra_args def add_file(self, newfile): self.infilelist.append(newfile) outfiles = self.generator.get_base_outnames(newfile.fname) 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 overriden, 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 'cs' in self.compilers: self.suffix = 'exe' else: self.suffix = '' self.filename = self.name if self.suffix: self.filename += '.' + self.suffix # See determine_debug_filenames() in build.SharedLibrary buildtype = environment.coredata.get_builtin_option('buildtype') if self.get_using_msvc() and buildtype.startswith('debug'): self.debug_filename = self.prefix + self.name + '.pdb' def type_suffix(self): return "@exe" 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#.') # 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'): # Rust static library crates have .rlib suffix if 'rust' in self.compilers: self.suffix = 'rlib' else: self.suffix = 'a' self.filename = self.prefix + self.name + '.' + self.suffix # See determine_debug_filenames() in build.SharedLibrary buildtype = environment.coredata.get_builtin_option('buildtype') if self.get_using_msvc() and buildtype.startswith('debug'): self.debug_filename = self.prefix + self.name + '.pdb' def type_suffix(self): return "@sta" def check_unknown_kwargs(self, kwargs): self.check_unknown_kwargs_int(kwargs, known_lib_kwargs) 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 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) self.determine_debug_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}' # Rust elif 'rust' in self.compilers: # Currently, we always build --crate-type=rlib prefix = 'lib' suffix = 'rlib' 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_darwin(is_cross, env): prefix = 'lib' suffix = 'dylib' # libfoo.dylib self.filename_tpl = '{0.prefix}{0.name}.{0.suffix}' # On OS X, the filename should never have the soversion # See: https://github.com/mesonbuild/meson/pull/680 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) def determine_debug_filenames(self, is_cross, env): """ Determine the debug filename(s) using the prefix/name/etc detected in determine_filenames() above. """ buildtype = env.coredata.get_builtin_option('buildtype') if self.get_using_msvc() and buildtype.startswith('debug'): # Currently we only implement separate debug symbol files for MSVC # since the toolchain does it for us. Other toolchains embed the # debugging symbols in the file itself by default. if self.soversion: self.debug_filename = '{0.prefix}{0.name}-{0.soversion}.pdb'.format(self) else: self.debug_filename = '{0.prefix}{0.name}.pdb'.format(self) 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 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) # link_depends can be an absolute path or relative to self.subdir self.link_depends.append(path) 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 """ aliases = {} # Aliases are only useful with .so libraries. Also if the .so library # ends with .so (no versioning), we don't need aliases. if self.suffix != 'so' or self.filename.endswith('.so'): return {} # If ltversion != soversion we create an soversion alias: # libfoo.so.0 -> libfoo.so.0.100.0 if self.ltversion and self.ltversion != self.soversion: if not self.soversion: # This is done in self.process_kwargs() raise AssertionError('BUG: If library version is defined, soversion must have been defined') alias_tpl = self.filename_tpl.replace('ltversion', 'soversion') ltversion_filename = alias_tpl.format(self) aliases[ltversion_filename] = self.filename else: ltversion_filename = self.filename # Unversioned alias: libfoo.so -> libfoo.so.0 aliases[self.basic_filename_tpl.format(self)] = ltversion_filename return aliases def type_suffix(self): return "@sha" # 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) 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, } def __init__(self, name, subdir, kwargs, absolute_paths=False): super().__init__(name, subdir, 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 __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, GeneratedList)): deps.append(c) return deps def process_kwargs(self, kwargs): super().process_kwargs(kwargs) self.sources = kwargs.get('input', []) if not isinstance(self.sources, list): self.sources = [self.sources] if 'output' not in kwargs: raise InvalidArguments('Missing keyword argument "output".') self.output = kwargs['output'] if not isinstance(self.output, list): self.output = [self.output] for i in self.output: if not(isinstance(i, str)): raise InvalidArguments('Output argument not a string.') if '/' in i: raise InvalidArguments('Output must not contain a path segment.') self.capture = kwargs.get('capture', False) if self.capture and len(self.output) != 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 cmd = kwargs['command'] if not(isinstance(cmd, list)): cmd = [cmd] final_cmd = [] for i, c in enumerate(cmd): if hasattr(c, 'held_object'): c = c.held_object if isinstance(c, (str, File)): final_cmd.append(c) elif isinstance(c, dependencies.ExternalProgram): if not c.found(): raise InvalidArguments('Tried to use not found external program {!r} in a build rule.'.format(c.name)) final_cmd += c.get_command() elif isinstance(c, (BuildTarget, CustomTarget)): self.dependencies.append(c) final_cmd.append(c) elif isinstance(c, list): # Hackety hack, only supports one level of flattening. Should really # work to arbtrary depth. for s in c: if not isinstance(s, str): raise InvalidArguments('Array as argument %d contains a non-string.' % i) final_cmd.append(s) else: raise InvalidArguments('Argument %s in "command" is invalid.' % i) self.command = final_cmd 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" not specified.') self.install_dir = kwargs['install_dir'] if not(isinstance(self.install_dir, str)): raise InvalidArguments('"install_dir" must be a string.') else: self.install = False 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 = kwargs.get('depends', []) if not isinstance(extra_deps, list): extra_deps = [extra_deps] 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) depend_files = kwargs.get('depend_files', []) if not isinstance(depend_files, list): depend_files = [depend_files] 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.output def get_filename(self): return self.output[0] def get_sources(self): return self.sources def get_generated_sources(self): return [] def type_suffix(self): return "@cus" class RunTarget(Target): def __init__(self, name, command, args, dependencies, subdir): super().__init__(name, subdir, False) self.command = command self.args = args self.dependencies = dependencies 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_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.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 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 if not isinstance(self.sources, list): self.sources = [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