diff options
Diffstat (limited to 'mesonbuild/backend/backends.py')
| -rw-r--r-- | mesonbuild/backend/backends.py | 118 |
1 files changed, 3 insertions, 115 deletions
diff --git a/mesonbuild/backend/backends.py b/mesonbuild/backend/backends.py index 3aab420..e3d6c60 100644 --- a/mesonbuild/backend/backends.py +++ b/mesonbuild/backend/backends.py @@ -24,12 +24,12 @@ from .. import dependencies from .. import programs from .. import mesonlib from .. import mlog -from ..compilers import LANGUAGES_USING_LDFLAGS, detect, lang_suffixes +from ..compilers import detect, lang_suffixes from ..mesonlib import ( File, MachineChoice, MesonException, MesonBugException, OrderedSet, ExecutableSerialisation, EnvironmentException, classify_unity_sources, get_compiler_for_source, - is_parent_path, get_rsp_threshold, + get_rsp_threshold, ) from ..options import OptionKey @@ -61,7 +61,7 @@ if T.TYPE_CHECKING: # Languages that can mix with C or C++ but don't support unity builds yet # because the syntax we use for unity builds is specific to C/++/ObjC/++. # Assembly files cannot be unitified and neither can LLVM IR files -LANGS_CANT_UNITY = ('d', 'fortran', 'vala') +LANGS_CANT_UNITY = ('d', 'fortran', 'vala', 'rust') @dataclass(eq=False) class RegenInfo: @@ -733,118 +733,6 @@ class Backend: return l, stdlib_args @staticmethod - def _libdir_is_system(libdir: str, compilers: T.Mapping[str, 'Compiler'], env: 'Environment') -> bool: - libdir = os.path.normpath(libdir) - for cc in compilers.values(): - if libdir in cc.get_library_dirs(env): - return True - return False - - def get_external_rpath_dirs(self, target: build.BuildTarget) -> T.Set[str]: - args: T.List[str] = [] - for lang in LANGUAGES_USING_LDFLAGS: - try: - e = self.environment.coredata.get_external_link_args(target.for_machine, lang) - if isinstance(e, str): - args.append(e) - else: - args.extend(e) - except Exception: - pass - return self.get_rpath_dirs_from_link_args(args) - - @staticmethod - def get_rpath_dirs_from_link_args(args: T.List[str]) -> T.Set[str]: - dirs: T.Set[str] = set() - # Match rpath formats: - # -Wl,-rpath= - # -Wl,-rpath, - rpath_regex = re.compile(r'-Wl,-rpath[=,]([^,]+)') - # Match solaris style compat runpath formats: - # -Wl,-R - # -Wl,-R, - runpath_regex = re.compile(r'-Wl,-R[,]?([^,]+)') - # Match symbols formats: - # -Wl,--just-symbols= - # -Wl,--just-symbols, - symbols_regex = re.compile(r'-Wl,--just-symbols[=,]([^,]+)') - for arg in args: - rpath_match = rpath_regex.match(arg) - if rpath_match: - for dir in rpath_match.group(1).split(':'): - dirs.add(dir) - runpath_match = runpath_regex.match(arg) - if runpath_match: - for dir in runpath_match.group(1).split(':'): - # The symbols arg is an rpath if the path is a directory - if Path(dir).is_dir(): - dirs.add(dir) - symbols_match = symbols_regex.match(arg) - if symbols_match: - for dir in symbols_match.group(1).split(':'): - # Prevent usage of --just-symbols to specify rpath - if Path(dir).is_dir(): - raise MesonException(f'Invalid arg for --just-symbols, {dir} is a directory.') - return dirs - - @lru_cache(maxsize=None) - def rpaths_for_non_system_absolute_shared_libraries(self, target: build.BuildTarget, exclude_system: bool = True) -> 'ImmutableListProtocol[str]': - paths: OrderedSet[str] = OrderedSet() - srcdir = self.environment.get_source_dir() - - for dep in target.external_deps: - if dep.type_name not in {'library', 'pkgconfig', 'cmake'}: - continue - for libpath in dep.link_args: - # For all link args that are absolute paths to a library file, add RPATH args - if not os.path.isabs(libpath): - continue - libdir = os.path.dirname(libpath) - if exclude_system and self._libdir_is_system(libdir, target.compilers, self.environment): - # No point in adding system paths. - continue - # Don't remove rpaths specified in LDFLAGS. - if libdir in self.get_external_rpath_dirs(target): - continue - # Windows doesn't support rpaths, but we use this function to - # emulate rpaths by setting PATH - # .dll is there for mingw gcc - # .so's may be extended with version information, e.g. libxyz.so.1.2.3 - if not ( - os.path.splitext(libpath)[1] in {'.dll', '.lib', '.so', '.dylib'} - or re.match(r'.+\.so(\.|$)', os.path.basename(libpath)) - ): - continue - - if is_parent_path(srcdir, libdir): - rel_to_src = libdir[len(srcdir) + 1:] - assert not os.path.isabs(rel_to_src), f'rel_to_src: {rel_to_src} is absolute' - paths.add(os.path.join(self.build_to_src, rel_to_src)) - else: - paths.add(libdir) - # Don't remove rpaths specified by the dependency - paths.difference_update(self.get_rpath_dirs_from_link_args(dep.link_args)) - for i in chain(target.link_targets, target.link_whole_targets): - if isinstance(i, build.BuildTarget): - paths.update(self.rpaths_for_non_system_absolute_shared_libraries(i, exclude_system)) - return list(paths) - - # This may take other types - def determine_rpath_dirs(self, target: T.Union[build.BuildTarget, build.CustomTarget, build.CustomTargetIndex] - ) -> T.Tuple[str, ...]: - result: OrderedSet[str] - if self.environment.coredata.optstore.get_value_for(OptionKey('layout')) == 'mirror': - # Need a copy here - result = OrderedSet(target.get_link_dep_subdirs()) - else: - result = OrderedSet() - result.add('meson-out') - if isinstance(target, build.BuildTarget): - result.update(self.rpaths_for_non_system_absolute_shared_libraries(target)) - target.rpath_dirs_to_remove.update([d.encode('utf-8') for d in result]) - return tuple(result) - - @staticmethod @lru_cache(maxsize=None) def canonicalize_filename(fname: str) -> str: if os.path.altsep is not None: |