| #===----------------------------------------------------------------------===## |
| # |
| # The LLVM Compiler Infrastructure |
| # |
| # This file is dual licensed under the MIT and the University of Illinois Open |
| # Source Licenses. See LICENSE.TXT for details. |
| # |
| #===----------------------------------------------------------------------===## |
| |
| import locale |
| import os |
| import platform |
| import pkgutil |
| import pipes |
| import re |
| import shlex |
| import shutil |
| import sys |
| |
| from libcxx.compiler import CXXCompiler |
| from libcxx.test.target_info import make_target_info |
| from libcxx.test.executor import * |
| from libcxx.test.tracing import * |
| import libcxx.util |
| |
| def loadSiteConfig(lit_config, config, param_name, env_name): |
| # We haven't loaded the site specific configuration (the user is |
| # probably trying to run on a test file directly, and either the site |
| # configuration hasn't been created by the build system, or we are in an |
| # out-of-tree build situation). |
| site_cfg = lit_config.params.get(param_name, |
| os.environ.get(env_name)) |
| if not site_cfg: |
| lit_config.warning('No site specific configuration file found!' |
| ' Running the tests in the default configuration.') |
| elif not os.path.isfile(site_cfg): |
| lit_config.fatal( |
| "Specified site configuration file does not exist: '%s'" % |
| site_cfg) |
| else: |
| lit_config.note('using site specific configuration at %s' % site_cfg) |
| ld_fn = lit_config.load_config |
| |
| # Null out the load_config function so that lit.site.cfg doesn't |
| # recursively load a config even if it tries. |
| # TODO: This is one hell of a hack. Fix it. |
| def prevent_reload_fn(*args, **kwargs): |
| pass |
| lit_config.load_config = prevent_reload_fn |
| ld_fn(config, site_cfg) |
| lit_config.load_config = ld_fn |
| |
| class Configuration(object): |
| # pylint: disable=redefined-outer-name |
| def __init__(self, lit_config, config): |
| self.lit_config = lit_config |
| self.config = config |
| self.is_windows = platform.system() == 'Windows' |
| self.cxx = None |
| self.cxx_is_clang_cl = None |
| self.cxx_stdlib_under_test = None |
| self.project_obj_root = None |
| self.libcxx_src_root = None |
| self.libcxx_obj_root = None |
| self.cxx_library_root = None |
| self.cxx_runtime_root = None |
| self.abi_library_root = None |
| self.link_shared = self.get_lit_bool('enable_shared', default=True) |
| self.debug_build = self.get_lit_bool('debug_build', default=False) |
| self.exec_env = dict(os.environ) |
| self.use_target = False |
| self.use_system_cxx_lib = False |
| self.use_clang_verify = False |
| self.long_tests = None |
| self.execute_external = False |
| |
| def get_lit_conf(self, name, default=None): |
| val = self.lit_config.params.get(name, None) |
| if val is None: |
| val = getattr(self.config, name, None) |
| if val is None: |
| val = default |
| return val |
| |
| def get_lit_bool(self, name, default=None, env_var=None): |
| def check_value(value, var_name): |
| if value is None: |
| return default |
| if isinstance(value, bool): |
| return value |
| if not isinstance(value, str): |
| raise TypeError('expected bool or string') |
| if value.lower() in ('1', 'true'): |
| return True |
| if value.lower() in ('', '0', 'false'): |
| return False |
| self.lit_config.fatal( |
| "parameter '{}' should be true or false".format(var_name)) |
| |
| conf_val = self.get_lit_conf(name) |
| if env_var is not None and env_var in os.environ and \ |
| os.environ[env_var] is not None: |
| val = os.environ[env_var] |
| if conf_val is not None: |
| self.lit_config.warning( |
| 'Environment variable %s=%s is overriding explicit ' |
| '--param=%s=%s' % (env_var, val, name, conf_val)) |
| return check_value(val, env_var) |
| return check_value(conf_val, name) |
| |
| def get_modules_enabled(self): |
| return self.get_lit_bool('enable_modules', |
| default=False, |
| env_var='LIBCXX_ENABLE_MODULES') |
| |
| def make_static_lib_name(self, name): |
| """Return the full filename for the specified library name""" |
| if self.is_windows: |
| assert name == 'c++' # Only allow libc++ to use this function for now. |
| return 'lib' + name + '.lib' |
| else: |
| return 'lib' + name + '.a' |
| |
| def configure(self): |
| self.configure_executor() |
| self.configure_use_system_cxx_lib() |
| self.configure_target_info() |
| self.configure_cxx() |
| self.configure_triple() |
| self.configure_deployment() |
| self.configure_availability() |
| self.configure_src_root() |
| self.configure_obj_root() |
| self.configure_cxx_stdlib_under_test() |
| self.configure_cxx_library_root() |
| self.configure_use_clang_verify() |
| self.configure_use_thread_safety() |
| self.configure_execute_external() |
| self.configure_ccache() |
| self.configure_compile_flags() |
| self.configure_filesystem_compile_flags() |
| self.configure_link_flags() |
| self.configure_env() |
| self.configure_color_diagnostics() |
| self.configure_debug_mode() |
| self.configure_warnings() |
| self.configure_sanitizer() |
| self.configure_coverage() |
| self.configure_modules() |
| self.configure_coroutines() |
| self.configure_substitutions() |
| self.configure_features() |
| |
| def print_config_info(self): |
| # Print the final compile and link flags. |
| self.lit_config.note('Using compiler: %s' % self.cxx.path) |
| self.lit_config.note('Using flags: %s' % self.cxx.flags) |
| if self.cxx.use_modules: |
| self.lit_config.note('Using modules flags: %s' % |
| self.cxx.modules_flags) |
| self.lit_config.note('Using compile flags: %s' |
| % self.cxx.compile_flags) |
| if len(self.cxx.warning_flags): |
| self.lit_config.note('Using warnings: %s' % self.cxx.warning_flags) |
| self.lit_config.note('Using link flags: %s' % self.cxx.link_flags) |
| # Print as list to prevent "set([...])" from being printed. |
| self.lit_config.note('Using available_features: %s' % |
| list(self.config.available_features)) |
| show_env_vars = {} |
| for k,v in self.exec_env.items(): |
| if k not in os.environ or os.environ[k] != v: |
| show_env_vars[k] = v |
| self.lit_config.note('Adding environment variables: %r' % show_env_vars) |
| sys.stderr.flush() # Force flushing to avoid broken output on Windows |
| |
| def get_test_format(self): |
| from libcxx.test.format import LibcxxTestFormat |
| return LibcxxTestFormat( |
| self.cxx, |
| self.use_clang_verify, |
| self.execute_external, |
| self.executor, |
| exec_env=self.exec_env) |
| |
| def configure_executor(self): |
| exec_str = self.get_lit_conf('executor', "None") |
| te = eval(exec_str) |
| if te: |
| self.lit_config.note("Using executor: %r" % exec_str) |
| if self.lit_config.useValgrind: |
| # We have no way of knowing where in the chain the |
| # ValgrindExecutor is supposed to go. It is likely |
| # that the user wants it at the end, but we have no |
| # way of getting at that easily. |
| selt.lit_config.fatal("Cannot infer how to create a Valgrind " |
| " executor.") |
| else: |
| te = LocalExecutor() |
| if self.lit_config.useValgrind: |
| te = ValgrindExecutor(self.lit_config.valgrindArgs, te) |
| self.executor = te |
| |
| def configure_target_info(self): |
| self.target_info = make_target_info(self) |
| |
| def configure_cxx(self): |
| # Gather various compiler parameters. |
| cxx = self.get_lit_conf('cxx_under_test') |
| self.cxx_is_clang_cl = cxx is not None and \ |
| os.path.basename(cxx) == 'clang-cl.exe' |
| # If no specific cxx_under_test was given, attempt to infer it as |
| # clang++. |
| if cxx is None or self.cxx_is_clang_cl: |
| search_paths = self.config.environment['PATH'] |
| if cxx is not None and os.path.isabs(cxx): |
| search_paths = os.path.dirname(cxx) |
| clangxx = libcxx.util.which('clang++', search_paths) |
| if clangxx: |
| cxx = clangxx |
| self.lit_config.note( |
| "inferred cxx_under_test as: %r" % cxx) |
| elif self.cxx_is_clang_cl: |
| self.lit_config.fatal('Failed to find clang++ substitution for' |
| ' clang-cl') |
| if not cxx: |
| self.lit_config.fatal('must specify user parameter cxx_under_test ' |
| '(e.g., --param=cxx_under_test=clang++)') |
| self.cxx = CXXCompiler(cxx) if not self.cxx_is_clang_cl else \ |
| self._configure_clang_cl(cxx) |
| cxx_type = self.cxx.type |
| if cxx_type is not None: |
| assert self.cxx.version is not None |
| maj_v, min_v, _ = self.cxx.version |
| self.config.available_features.add(cxx_type) |
| self.config.available_features.add('%s-%s' % (cxx_type, maj_v)) |
| self.config.available_features.add('%s-%s.%s' % ( |
| cxx_type, maj_v, min_v)) |
| self.cxx.compile_env = dict(os.environ) |
| # 'CCACHE_CPP2' prevents ccache from stripping comments while |
| # preprocessing. This is required to prevent stripping of '-verify' |
| # comments. |
| self.cxx.compile_env['CCACHE_CPP2'] = '1' |
| |
| def _configure_clang_cl(self, clang_path): |
| def _split_env_var(var): |
| return [p.strip() for p in os.environ.get(var, '').split(';') if p.strip()] |
| |
| def _prefixed_env_list(var, prefix): |
| from itertools import chain |
| return list(chain.from_iterable((prefix, path) for path in _split_env_var(var))) |
| |
| assert self.cxx_is_clang_cl |
| flags = [] |
| compile_flags = _prefixed_env_list('INCLUDE', '-isystem') |
| link_flags = _prefixed_env_list('LIB', '-L') |
| for path in _split_env_var('LIB'): |
| self.add_path(self.exec_env, path) |
| return CXXCompiler(clang_path, flags=flags, |
| compile_flags=compile_flags, |
| link_flags=link_flags) |
| |
| |
| def configure_src_root(self): |
| self.libcxx_src_root = self.get_lit_conf( |
| 'libcxx_src_root', os.path.dirname(self.config.test_source_root)) |
| |
| def configure_obj_root(self): |
| self.project_obj_root = self.get_lit_conf('project_obj_root') |
| self.libcxx_obj_root = self.get_lit_conf('libcxx_obj_root') |
| if not self.libcxx_obj_root and self.project_obj_root is not None: |
| possible_root = os.path.join(self.project_obj_root, 'projects', 'libcxx') |
| if os.path.isdir(possible_root): |
| self.libcxx_obj_root = possible_root |
| else: |
| self.libcxx_obj_root = self.project_obj_root |
| |
| def configure_cxx_library_root(self): |
| self.cxx_library_root = self.get_lit_conf('cxx_library_root', |
| self.libcxx_obj_root) |
| self.cxx_runtime_root = self.get_lit_conf('cxx_runtime_root', |
| self.cxx_library_root) |
| |
| def configure_use_system_cxx_lib(self): |
| # This test suite supports testing against either the system library or |
| # the locally built one; the former mode is useful for testing ABI |
| # compatibility between the current headers and a shipping dynamic |
| # library. |
| # Default to testing against the locally built libc++ library. |
| self.use_system_cxx_lib = self.get_lit_conf('use_system_cxx_lib') |
| if self.use_system_cxx_lib == 'true': |
| self.use_system_cxx_lib = True |
| elif self.use_system_cxx_lib == 'false': |
| self.use_system_cxx_lib = False |
| elif self.use_system_cxx_lib: |
| assert os.path.isdir(self.use_system_cxx_lib) |
| self.lit_config.note( |
| "inferred use_system_cxx_lib as: %r" % self.use_system_cxx_lib) |
| |
| def configure_availability(self): |
| # See http://llvm.org/docs/AvailabilityMarkup.html |
| self.with_availability = self.get_lit_bool('with_availability', False) |
| self.lit_config.note( |
| "inferred with_availability as: %r" % self.with_availability) |
| |
| def configure_cxx_stdlib_under_test(self): |
| self.cxx_stdlib_under_test = self.get_lit_conf( |
| 'cxx_stdlib_under_test', 'libc++') |
| if self.cxx_stdlib_under_test not in \ |
| ['libc++', 'libstdc++', 'msvc', 'cxx_default']: |
| self.lit_config.fatal( |
| 'unsupported value for "cxx_stdlib_under_test": %s' |
| % self.cxx_stdlib_under_test) |
| self.config.available_features.add(self.cxx_stdlib_under_test) |
| if self.cxx_stdlib_under_test == 'libstdc++': |
| self.config.available_features.add('libstdc++') |
| # Manually enable the experimental and filesystem tests for libstdc++ |
| # if the options aren't present. |
| # FIXME this is a hack. |
| if self.get_lit_conf('enable_experimental') is None: |
| self.config.enable_experimental = 'true' |
| if self.get_lit_conf('enable_filesystem') is None: |
| self.config.enable_filesystem = 'true' |
| |
| def configure_use_clang_verify(self): |
| '''If set, run clang with -verify on failing tests.''' |
| if self.with_availability: |
| self.use_clang_verify = False |
| return |
| self.use_clang_verify = self.get_lit_bool('use_clang_verify') |
| if self.use_clang_verify is None: |
| # NOTE: We do not test for the -verify flag directly because |
| # -verify will always exit with non-zero on an empty file. |
| self.use_clang_verify = self.cxx.isVerifySupported() |
| self.lit_config.note( |
| "inferred use_clang_verify as: %r" % self.use_clang_verify) |
| if self.use_clang_verify: |
| self.config.available_features.add('verify-support') |
| |
| def configure_use_thread_safety(self): |
| '''If set, run clang with -verify on failing tests.''' |
| has_thread_safety = self.cxx.hasCompileFlag('-Werror=thread-safety') |
| if has_thread_safety: |
| self.cxx.compile_flags += ['-Werror=thread-safety'] |
| self.config.available_features.add('thread-safety') |
| self.lit_config.note("enabling thread-safety annotations") |
| |
| def configure_execute_external(self): |
| # Choose between lit's internal shell pipeline runner and a real shell. |
| # If LIT_USE_INTERNAL_SHELL is in the environment, we use that as the |
| # default value. Otherwise we ask the target_info. |
| use_lit_shell_default = os.environ.get('LIT_USE_INTERNAL_SHELL') |
| if use_lit_shell_default is not None: |
| use_lit_shell_default = use_lit_shell_default != '0' |
| else: |
| use_lit_shell_default = self.target_info.use_lit_shell_default() |
| # Check for the command line parameter using the default value if it is |
| # not present. |
| use_lit_shell = self.get_lit_bool('use_lit_shell', |
| use_lit_shell_default) |
| self.execute_external = not use_lit_shell |
| |
| def configure_ccache(self): |
| use_ccache_default = os.environ.get('LIBCXX_USE_CCACHE') is not None |
| use_ccache = self.get_lit_bool('use_ccache', use_ccache_default) |
| if use_ccache: |
| self.cxx.use_ccache = True |
| self.lit_config.note('enabling ccache') |
| |
| def add_deployment_feature(self, feature): |
| (arch, name, version) = self.config.deployment |
| self.config.available_features.add('%s=%s-%s' % (feature, arch, name)) |
| self.config.available_features.add('%s=%s' % (feature, name)) |
| self.config.available_features.add('%s=%s%s' % (feature, name, version)) |
| |
| def configure_features(self): |
| additional_features = self.get_lit_conf('additional_features') |
| if additional_features: |
| for f in additional_features.split(','): |
| self.config.available_features.add(f.strip()) |
| self.target_info.add_locale_features(self.config.available_features) |
| |
| target_platform = self.target_info.platform() |
| |
| # Write an "available feature" that combines the triple when |
| # use_system_cxx_lib is enabled. This is so that we can easily write |
| # XFAIL markers for tests that are known to fail with versions of |
| # libc++ as were shipped with a particular triple. |
| if self.use_system_cxx_lib: |
| self.config.available_features.add('with_system_cxx_lib') |
| self.config.available_features.add( |
| 'with_system_cxx_lib=%s' % self.config.target_triple) |
| |
| # Add subcomponents individually. |
| target_components = self.config.target_triple.split('-') |
| for component in target_components: |
| self.config.available_features.add( |
| 'with_system_cxx_lib=%s' % component) |
| |
| # Add available features for more generic versions of the target |
| # triple attached to with_system_cxx_lib. |
| if self.use_deployment: |
| self.add_deployment_feature('with_system_cxx_lib') |
| |
| # Configure the availability markup checks features. |
| if self.with_availability: |
| self.config.available_features.add('availability_markup') |
| self.add_deployment_feature('availability_markup') |
| |
| if self.use_system_cxx_lib or self.with_availability: |
| self.config.available_features.add('availability') |
| self.add_deployment_feature('availability') |
| |
| if platform.system() == 'Darwin': |
| self.config.available_features.add('apple-darwin') |
| |
| # Insert the platform name into the available features as a lower case. |
| self.config.available_features.add(target_platform) |
| |
| # Simulator testing can take a really long time for some of these tests |
| # so add a feature check so we can REQUIRES: long_tests in them |
| self.long_tests = self.get_lit_bool('long_tests') |
| if self.long_tests is None: |
| # Default to running long tests. |
| self.long_tests = True |
| self.lit_config.note( |
| "inferred long_tests as: %r" % self.long_tests) |
| |
| if self.long_tests: |
| self.config.available_features.add('long_tests') |
| |
| # Run a compile test for the -fsized-deallocation flag. This is needed |
| # in test/std/language.support/support.dynamic/new.delete |
| if self.cxx.hasCompileFlag('-fsized-deallocation'): |
| self.config.available_features.add('fsized-deallocation') |
| |
| if self.cxx.hasCompileFlag('-faligned-allocation'): |
| self.config.available_features.add('-faligned-allocation') |
| else: |
| # FIXME remove this once more than just clang-4.0 support |
| # C++17 aligned allocation. |
| self.config.available_features.add('no-aligned-allocation') |
| |
| if self.cxx.hasCompileFlag('-fdelayed-template-parsing'): |
| self.config.available_features.add('fdelayed-template-parsing') |
| |
| if self.get_lit_bool('has_libatomic', False): |
| self.config.available_features.add('libatomic') |
| |
| macros = self.cxx.dumpMacros() |
| if '__cpp_if_constexpr' not in macros: |
| self.config.available_features.add('libcpp-no-if-constexpr') |
| |
| if '__cpp_structured_bindings' not in macros: |
| self.config.available_features.add('libcpp-no-structured-bindings') |
| |
| if '__cpp_deduction_guides' not in macros: |
| self.config.available_features.add('libcpp-no-deduction-guides') |
| |
| if self.is_windows: |
| self.config.available_features.add('windows') |
| if self.cxx_stdlib_under_test == 'libc++': |
| # LIBCXX-WINDOWS-FIXME is the feature name used to XFAIL the |
| # initial Windows failures until they can be properly diagnosed |
| # and fixed. This allows easier detection of new test failures |
| # and regressions. Note: New failures should not be suppressed |
| # using this feature. (Also see llvm.org/PR32730) |
| self.config.available_features.add('LIBCXX-WINDOWS-FIXME') |
| |
| # Attempt to detect the glibc version by querying for __GLIBC__ |
| # in 'features.h'. |
| macros = self.cxx.dumpMacros(flags=['-include', 'features.h']) |
| if macros is not None and '__GLIBC__' in macros: |
| maj_v, min_v = (macros['__GLIBC__'], macros['__GLIBC_MINOR__']) |
| self.config.available_features.add('glibc') |
| self.config.available_features.add('glibc-%s' % maj_v) |
| self.config.available_features.add('glibc-%s.%s' % (maj_v, min_v)) |
| |
| # Support Objective-C++ only on MacOS and if the compiler supports it. |
| if self.target_info.platform() == "darwin" and \ |
| self.target_info.is_host_macosx() and \ |
| self.cxx.hasCompileFlag(["-x", "objective-c++", "-fobjc-arc"]): |
| self.config.available_features.add("objective-c++") |
| |
| def configure_compile_flags(self): |
| no_default_flags = self.get_lit_bool('no_default_flags', False) |
| if not no_default_flags: |
| self.configure_default_compile_flags() |
| # This include is always needed so add so add it regardless of |
| # 'no_default_flags'. |
| support_path = os.path.join(self.libcxx_src_root, 'test/support') |
| self.cxx.compile_flags += ['-I' + support_path] |
| # Configure extra flags |
| compile_flags_str = self.get_lit_conf('compile_flags', '') |
| self.cxx.compile_flags += shlex.split(compile_flags_str) |
| if self.is_windows: |
| # FIXME: Can we remove this? |
| self.cxx.compile_flags += ['-D_CRT_SECURE_NO_WARNINGS'] |
| # Required so that tests using min/max don't fail on Windows, |
| # and so that those tests don't have to be changed to tolerate |
| # this insanity. |
| self.cxx.compile_flags += ['-DNOMINMAX'] |
| |
| def configure_default_compile_flags(self): |
| # Try and get the std version from the command line. Fall back to |
| # default given in lit.site.cfg is not present. If default is not |
| # present then force c++11. |
| std = self.get_lit_conf('std') |
| if not std: |
| # Choose the newest possible language dialect if none is given. |
| possible_stds = ['c++1z', 'c++14', 'c++11', 'c++03'] |
| if self.cxx.type == 'gcc': |
| maj_v, _, _ = self.cxx.version |
| maj_v = int(maj_v) |
| if maj_v < 7: |
| possible_stds.remove('c++1z') |
| # FIXME: How many C++14 tests actually fail under GCC 5 and 6? |
| # Should we XFAIL them individually instead? |
| if maj_v <= 6: |
| possible_stds.remove('c++14') |
| for s in possible_stds: |
| if self.cxx.hasCompileFlag('-std=%s' % s): |
| std = s |
| self.lit_config.note( |
| 'inferred language dialect as: %s' % std) |
| break |
| if not std: |
| self.lit_config.fatal( |
| 'Failed to infer a supported language dialect from one of %r' |
| % possible_stds) |
| self.cxx.compile_flags += ['-std={0}'.format(std)] |
| self.config.available_features.add(std.replace('gnu++', 'c++')) |
| # Configure include paths |
| self.configure_compile_flags_header_includes() |
| self.target_info.add_cxx_compile_flags(self.cxx.compile_flags) |
| # Configure feature flags. |
| self.configure_compile_flags_exceptions() |
| self.configure_compile_flags_rtti() |
| self.configure_compile_flags_abi_version() |
| enable_32bit = self.get_lit_bool('enable_32bit', False) |
| if enable_32bit: |
| self.cxx.flags += ['-m32'] |
| # Use verbose output for better errors |
| self.cxx.flags += ['-v'] |
| sysroot = self.get_lit_conf('sysroot') |
| if sysroot: |
| self.cxx.flags += ['--sysroot', sysroot] |
| gcc_toolchain = self.get_lit_conf('gcc_toolchain') |
| if gcc_toolchain: |
| self.cxx.flags += ['-gcc-toolchain', gcc_toolchain] |
| # NOTE: the _DEBUG definition must preceed the triple check because for |
| # the Windows build of libc++, the forced inclusion of a header requires |
| # that _DEBUG is defined. Incorrect ordering will result in -target |
| # being elided. |
| if self.is_windows and self.debug_build: |
| self.cxx.compile_flags += ['-D_DEBUG'] |
| if self.use_target: |
| if not self.cxx.addFlagIfSupported( |
| ['-target', self.config.target_triple]): |
| self.lit_config.warning('use_target is true but -target is '\ |
| 'not supported by the compiler') |
| if self.use_deployment: |
| arch, name, version = self.config.deployment |
| self.cxx.flags += ['-arch', arch] |
| self.cxx.flags += ['-m' + name + '-version-min=' + version] |
| |
| # Disable availability unless explicitely requested |
| if not self.with_availability: |
| self.cxx.flags += ['-D_LIBCPP_DISABLE_AVAILABILITY'] |
| |
| def configure_compile_flags_header_includes(self): |
| support_path = os.path.join(self.libcxx_src_root, 'test', 'support') |
| self.configure_config_site_header() |
| if self.cxx_stdlib_under_test != 'libstdc++' and \ |
| not self.is_windows: |
| self.cxx.compile_flags += [ |
| '-include', os.path.join(support_path, 'nasty_macros.hpp')] |
| if self.cxx_stdlib_under_test == 'msvc': |
| self.cxx.compile_flags += [ |
| '-include', os.path.join(support_path, |
| 'msvc_stdlib_force_include.hpp')] |
| pass |
| if self.is_windows and self.debug_build and \ |
| self.cxx_stdlib_under_test != 'msvc': |
| self.cxx.compile_flags += [ |
| '-include', os.path.join(support_path, |
| 'set_windows_crt_report_mode.h') |
| ] |
| cxx_headers = self.get_lit_conf('cxx_headers') |
| if cxx_headers == '' or (cxx_headers is None |
| and self.cxx_stdlib_under_test != 'libc++'): |
| self.lit_config.note('using the system cxx headers') |
| return |
| self.cxx.compile_flags += ['-nostdinc++'] |
| if cxx_headers is None: |
| cxx_headers = os.path.join(self.libcxx_src_root, 'include') |
| if not os.path.isdir(cxx_headers): |
| self.lit_config.fatal("cxx_headers='%s' is not a directory." |
| % cxx_headers) |
| self.cxx.compile_flags += ['-I' + cxx_headers] |
| if self.libcxx_obj_root is not None: |
| cxxabi_headers = os.path.join(self.libcxx_obj_root, 'include', |
| 'c++build') |
| if os.path.isdir(cxxabi_headers): |
| self.cxx.compile_flags += ['-I' + cxxabi_headers] |
| |
| def configure_config_site_header(self): |
| # Check for a possible __config_site in the build directory. We |
| # use this if it exists. |
| if self.libcxx_obj_root is None: |
| return |
| config_site_header = os.path.join(self.libcxx_obj_root, '__config_site') |
| if not os.path.isfile(config_site_header): |
| return |
| contained_macros = self.parse_config_site_and_add_features( |
| config_site_header) |
| self.lit_config.note('Using __config_site header %s with macros: %r' |
| % (config_site_header, contained_macros)) |
| # FIXME: This must come after the call to |
| # 'parse_config_site_and_add_features(...)' in order for it to work. |
| self.cxx.compile_flags += ['-include', config_site_header] |
| |
| def parse_config_site_and_add_features(self, header): |
| """ parse_config_site_and_add_features - Deduce and add the test |
| features that that are implied by the #define's in the __config_site |
| header. Return a dictionary containing the macros found in the |
| '__config_site' header. |
| """ |
| # Parse the macro contents of __config_site by dumping the macros |
| # using 'c++ -dM -E' and filtering the predefines. |
| predefines = self.cxx.dumpMacros() |
| macros = self.cxx.dumpMacros(header) |
| feature_macros_keys = set(macros.keys()) - set(predefines.keys()) |
| feature_macros = {} |
| for k in feature_macros_keys: |
| feature_macros[k] = macros[k] |
| # We expect the header guard to be one of the definitions |
| assert '_LIBCPP_CONFIG_SITE' in feature_macros |
| del feature_macros['_LIBCPP_CONFIG_SITE'] |
| # The __config_site header should be non-empty. Otherwise it should |
| # have never been emitted by CMake. |
| assert len(feature_macros) > 0 |
| # FIXME: This is a hack that should be fixed using module maps (or something) |
| # If modules are enabled then we have to lift all of the definitions |
| # in __config_site onto the command line. |
| modules_enabled = self.get_modules_enabled() |
| self.cxx.compile_flags += ['-Wno-macro-redefined'] |
| # Transform each macro name into the feature name used in the tests. |
| # Ex. _LIBCPP_HAS_NO_THREADS -> libcpp-has-no-threads |
| for m in feature_macros: |
| if modules_enabled: |
| define = '-D%s' % m |
| if feature_macros[m]: |
| define += '=%s' % (feature_macros[m]) |
| self.cxx.compile_flags += [define] |
| if m == '_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS': |
| continue |
| if m == '_LIBCPP_ABI_VERSION': |
| self.config.available_features.add('libcpp-abi-version-v%s' |
| % feature_macros[m]) |
| continue |
| assert m.startswith('_LIBCPP_HAS_') or m == '_LIBCPP_ABI_UNSTABLE' |
| m = m.lower()[1:].replace('_', '-') |
| self.config.available_features.add(m) |
| return feature_macros |
| |
| |
| |
| def configure_compile_flags_exceptions(self): |
| enable_exceptions = self.get_lit_bool('enable_exceptions', True) |
| if not enable_exceptions: |
| self.config.available_features.add('libcpp-no-exceptions') |
| self.cxx.compile_flags += ['-fno-exceptions'] |
| |
| def configure_compile_flags_rtti(self): |
| enable_rtti = self.get_lit_bool('enable_rtti', True) |
| if not enable_rtti: |
| self.config.available_features.add('libcpp-no-rtti') |
| self.cxx.compile_flags += ['-fno-rtti', '-D_LIBCPP_NO_RTTI'] |
| |
| def configure_compile_flags_abi_version(self): |
| abi_version = self.get_lit_conf('abi_version', '').strip() |
| abi_unstable = self.get_lit_bool('abi_unstable') |
| # Only add the ABI version when it is non-default. |
| # FIXME(EricWF): Get the ABI version from the "__config_site". |
| if abi_version and abi_version != '1': |
| self.cxx.compile_flags += ['-D_LIBCPP_ABI_VERSION=' + abi_version] |
| if abi_unstable: |
| self.config.available_features.add('libcpp-abi-unstable') |
| self.cxx.compile_flags += ['-D_LIBCPP_ABI_UNSTABLE'] |
| |
| def configure_filesystem_compile_flags(self): |
| enable_fs = self.get_lit_bool('enable_filesystem', default=False) |
| if not enable_fs: |
| return |
| enable_experimental = self.get_lit_bool('enable_experimental', default=False) |
| if not enable_experimental: |
| self.lit_config.fatal( |
| 'filesystem is enabled but libc++experimental.a is not.') |
| self.config.available_features.add('c++filesystem') |
| static_env = os.path.join(self.libcxx_src_root, 'test', 'std', |
| 'experimental', 'filesystem', 'Inputs', 'static_test_env') |
| static_env = os.path.realpath(static_env) |
| assert os.path.isdir(static_env) |
| self.cxx.compile_flags += ['-DLIBCXX_FILESYSTEM_STATIC_TEST_ROOT="%s"' % static_env] |
| |
| dynamic_env = os.path.join(self.config.test_exec_root, |
| 'filesystem', 'Output', 'dynamic_env') |
| dynamic_env = os.path.realpath(dynamic_env) |
| if not os.path.isdir(dynamic_env): |
| os.makedirs(dynamic_env) |
| self.cxx.compile_flags += ['-DLIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT="%s"' % dynamic_env] |
| self.exec_env['LIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT'] = ("%s" % dynamic_env) |
| |
| dynamic_helper = os.path.join(self.libcxx_src_root, 'test', 'support', |
| 'filesystem_dynamic_test_helper.py') |
| assert os.path.isfile(dynamic_helper) |
| |
| self.cxx.compile_flags += ['-DLIBCXX_FILESYSTEM_DYNAMIC_TEST_HELPER="%s %s"' |
| % (sys.executable, dynamic_helper)] |
| |
| |
| def configure_link_flags(self): |
| no_default_flags = self.get_lit_bool('no_default_flags', False) |
| if not no_default_flags: |
| # Configure library path |
| self.configure_link_flags_cxx_library_path() |
| self.configure_link_flags_abi_library_path() |
| |
| # Configure libraries |
| if self.cxx_stdlib_under_test == 'libc++': |
| self.cxx.link_flags += ['-nodefaultlibs'] |
| # FIXME: Handle MSVCRT as part of the ABI library handling. |
| if self.is_windows: |
| self.cxx.link_flags += ['-nostdlib'] |
| self.configure_link_flags_cxx_library() |
| self.configure_link_flags_abi_library() |
| self.configure_extra_library_flags() |
| elif self.cxx_stdlib_under_test == 'libstdc++': |
| enable_fs = self.get_lit_bool('enable_filesystem', |
| default=False) |
| if enable_fs: |
| self.config.available_features.add('c++experimental') |
| self.cxx.link_flags += ['-lstdc++fs'] |
| self.cxx.link_flags += ['-lm', '-pthread'] |
| elif self.cxx_stdlib_under_test == 'msvc': |
| # FIXME: Correctly setup debug/release flags here. |
| pass |
| elif self.cxx_stdlib_under_test == 'cxx_default': |
| self.cxx.link_flags += ['-pthread'] |
| else: |
| self.lit_config.fatal( |
| 'unsupported value for "use_stdlib_type": %s' |
| % use_stdlib_type) |
| |
| link_flags_str = self.get_lit_conf('link_flags', '') |
| self.cxx.link_flags += shlex.split(link_flags_str) |
| |
| def configure_link_flags_cxx_library_path(self): |
| if not self.use_system_cxx_lib: |
| if self.cxx_library_root: |
| self.cxx.link_flags += ['-L' + self.cxx_library_root] |
| if self.is_windows and self.link_shared: |
| self.add_path(self.cxx.compile_env, self.cxx_library_root) |
| if self.cxx_runtime_root: |
| if not self.is_windows: |
| self.cxx.link_flags += ['-Wl,-rpath,' + |
| self.cxx_runtime_root] |
| elif self.is_windows and self.link_shared: |
| self.add_path(self.exec_env, self.cxx_runtime_root) |
| elif os.path.isdir(str(self.use_system_cxx_lib)): |
| self.cxx.link_flags += ['-L' + self.use_system_cxx_lib] |
| if not self.is_windows: |
| self.cxx.link_flags += ['-Wl,-rpath,' + |
| self.use_system_cxx_lib] |
| if self.is_windows and self.link_shared: |
| self.add_path(self.cxx.compile_env, self.use_system_cxx_lib) |
| |
| def configure_link_flags_abi_library_path(self): |
| # Configure ABI library paths. |
| self.abi_library_root = self.get_lit_conf('abi_library_path') |
| if self.abi_library_root: |
| self.cxx.link_flags += ['-L' + self.abi_library_root] |
| if not self.is_windows: |
| self.cxx.link_flags += ['-Wl,-rpath,' + self.abi_library_root] |
| else: |
| self.add_path(self.exec_env, self.abi_library_root) |
| |
| def configure_link_flags_cxx_library(self): |
| libcxx_experimental = self.get_lit_bool('enable_experimental', default=False) |
| if libcxx_experimental: |
| self.config.available_features.add('c++experimental') |
| self.cxx.link_flags += ['-lc++experimental'] |
| if self.link_shared: |
| self.cxx.link_flags += ['-lc++'] |
| else: |
| cxx_library_root = self.get_lit_conf('cxx_library_root') |
| if cxx_library_root: |
| libname = self.make_static_lib_name('c++') |
| abs_path = os.path.join(cxx_library_root, libname) |
| assert os.path.exists(abs_path) and \ |
| "static libc++ library does not exist" |
| self.cxx.link_flags += [abs_path] |
| else: |
| self.cxx.link_flags += ['-lc++'] |
| |
| def configure_link_flags_abi_library(self): |
| cxx_abi = self.get_lit_conf('cxx_abi', 'libcxxabi') |
| if cxx_abi == 'libstdc++': |
| self.cxx.link_flags += ['-lstdc++'] |
| elif cxx_abi == 'libsupc++': |
| self.cxx.link_flags += ['-lsupc++'] |
| elif cxx_abi == 'libcxxabi': |
| if self.target_info.allow_cxxabi_link(): |
| libcxxabi_shared = self.get_lit_bool('libcxxabi_shared', default=True) |
| if libcxxabi_shared: |
| self.cxx.link_flags += ['-lc++abi'] |
| else: |
| cxxabi_library_root = self.get_lit_conf('abi_library_path') |
| if cxxabi_library_root: |
| libname = self.make_static_lib_name('c++abi') |
| abs_path = os.path.join(cxxabi_library_root, libname) |
| self.cxx.link_flags += [abs_path] |
| else: |
| self.cxx.link_flags += ['-lc++abi'] |
| elif cxx_abi == 'libcxxrt': |
| self.cxx.link_flags += ['-lcxxrt'] |
| elif cxx_abi == 'vcruntime': |
| debug_suffix = 'd' if self.debug_build else '' |
| self.cxx.link_flags += ['-l%s%s' % (lib, debug_suffix) for lib in |
| ['vcruntime', 'ucrt', 'msvcrt']] |
| elif cxx_abi == 'none' or cxx_abi == 'default': |
| if self.is_windows: |
| debug_suffix = 'd' if self.debug_build else '' |
| self.cxx.link_flags += ['-lmsvcrt%s' % debug_suffix] |
| else: |
| self.lit_config.fatal( |
| 'C++ ABI setting %s unsupported for tests' % cxx_abi) |
| |
| def configure_extra_library_flags(self): |
| if self.get_lit_bool('cxx_ext_threads', default=False): |
| self.cxx.link_flags += ['-lc++external_threads'] |
| self.target_info.add_cxx_link_flags(self.cxx.link_flags) |
| |
| def configure_color_diagnostics(self): |
| use_color = self.get_lit_conf('color_diagnostics') |
| if use_color is None: |
| use_color = os.environ.get('LIBCXX_COLOR_DIAGNOSTICS') |
| if use_color is None: |
| return |
| if use_color != '': |
| self.lit_config.fatal('Invalid value for color_diagnostics "%s".' |
| % use_color) |
| color_flag = '-fdiagnostics-color=always' |
| # Check if the compiler supports the color diagnostics flag. Issue a |
| # warning if it does not since color diagnostics have been requested. |
| if not self.cxx.hasCompileFlag(color_flag): |
| self.lit_config.warning( |
| 'color diagnostics have been requested but are not supported ' |
| 'by the compiler') |
| else: |
| self.cxx.flags += [color_flag] |
| |
| def configure_debug_mode(self): |
| debug_level = self.get_lit_conf('debug_level', None) |
| if not debug_level: |
| return |
| if debug_level not in ['0', '1']: |
| self.lit_config.fatal('Invalid value for debug_level "%s".' |
| % debug_level) |
| self.cxx.compile_flags += ['-D_LIBCPP_DEBUG=%s' % debug_level] |
| |
| def configure_warnings(self): |
| # Turn on warnings by default for Clang based compilers when C++ >= 11 |
| default_enable_warnings = self.cxx.type in ['clang', 'apple-clang'] \ |
| and len(self.config.available_features.intersection( |
| ['c++11', 'c++14', 'c++1z'])) != 0 |
| enable_warnings = self.get_lit_bool('enable_warnings', |
| default_enable_warnings) |
| self.cxx.useWarnings(enable_warnings) |
| self.cxx.warning_flags += [ |
| '-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER', |
| '-Wall', '-Wextra', '-Werror' |
| ] |
| if self.cxx.hasWarningFlag('-Wuser-defined-warnings'): |
| self.cxx.warning_flags += ['-Wuser-defined-warnings'] |
| self.config.available_features.add('diagnose-if-support') |
| self.cxx.addWarningFlagIfSupported('-Wshadow') |
| self.cxx.addWarningFlagIfSupported('-Wno-unused-command-line-argument') |
| self.cxx.addWarningFlagIfSupported('-Wno-attributes') |
| self.cxx.addWarningFlagIfSupported('-Wno-pessimizing-move') |
| self.cxx.addWarningFlagIfSupported('-Wno-c++11-extensions') |
| self.cxx.addWarningFlagIfSupported('-Wno-user-defined-literals') |
| self.cxx.addWarningFlagIfSupported('-Wno-noexcept-type') |
| self.cxx.addWarningFlagIfSupported('-Wno-aligned-allocation-unavailable') |
| # These warnings should be enabled in order to support the MSVC |
| # team using the test suite; They enable the warnings below and |
| # expect the test suite to be clean. |
| self.cxx.addWarningFlagIfSupported('-Wsign-compare') |
| self.cxx.addWarningFlagIfSupported('-Wunused-variable') |
| self.cxx.addWarningFlagIfSupported('-Wunused-parameter') |
| self.cxx.addWarningFlagIfSupported('-Wunreachable-code') |
| # FIXME: Enable the two warnings below. |
| self.cxx.addWarningFlagIfSupported('-Wno-conversion') |
| self.cxx.addWarningFlagIfSupported('-Wno-unused-local-typedef') |
| # FIXME: Remove this warning once the min/max handling patch lands |
| # See https://reviews.llvm.org/D33080 |
| self.cxx.addWarningFlagIfSupported('-Wno-#warnings') |
| std = self.get_lit_conf('std', None) |
| if std in ['c++98', 'c++03']: |
| # The '#define static_assert' provided by libc++ in C++03 mode |
| # causes an unused local typedef whenever it is used. |
| self.cxx.addWarningFlagIfSupported('-Wno-unused-local-typedef') |
| |
| def configure_sanitizer(self): |
| san = self.get_lit_conf('use_sanitizer', '').strip() |
| if san: |
| self.target_info.add_sanitizer_features(san, self.config.available_features) |
| # Search for llvm-symbolizer along the compiler path first |
| # and then along the PATH env variable. |
| symbolizer_search_paths = os.environ.get('PATH', '') |
| cxx_path = libcxx.util.which(self.cxx.path) |
| if cxx_path is not None: |
| symbolizer_search_paths = ( |
| os.path.dirname(cxx_path) + |
| os.pathsep + symbolizer_search_paths) |
| llvm_symbolizer = libcxx.util.which('llvm-symbolizer', |
| symbolizer_search_paths) |
| |
| def add_ubsan(): |
| self.cxx.flags += ['-fsanitize=undefined', |
| '-fno-sanitize=vptr,function,float-divide-by-zero', |
| '-fno-sanitize-recover=all'] |
| self.exec_env['UBSAN_OPTIONS'] = 'print_stacktrace=1' |
| self.config.available_features.add('ubsan') |
| |
| # Setup the sanitizer compile flags |
| self.cxx.flags += ['-g', '-fno-omit-frame-pointer'] |
| if san == 'Address' or san == 'Address;Undefined' or san == 'Undefined;Address': |
| self.cxx.flags += ['-fsanitize=address'] |
| if llvm_symbolizer is not None: |
| self.exec_env['ASAN_SYMBOLIZER_PATH'] = llvm_symbolizer |
| # FIXME: Turn ODR violation back on after PR28391 is resolved |
| # https://bugs.llvm.org/show_bug.cgi?id=28391 |
| self.exec_env['ASAN_OPTIONS'] = 'detect_odr_violation=0' |
| self.config.available_features.add('asan') |
| self.config.available_features.add('sanitizer-new-delete') |
| self.cxx.compile_flags += ['-O1'] |
| if san == 'Address;Undefined' or san == 'Undefined;Address': |
| add_ubsan() |
| elif san == 'Memory' or san == 'MemoryWithOrigins': |
| self.cxx.flags += ['-fsanitize=memory'] |
| if san == 'MemoryWithOrigins': |
| self.cxx.compile_flags += [ |
| '-fsanitize-memory-track-origins'] |
| if llvm_symbolizer is not None: |
| self.exec_env['MSAN_SYMBOLIZER_PATH'] = llvm_symbolizer |
| self.config.available_features.add('msan') |
| self.config.available_features.add('sanitizer-new-delete') |
| self.cxx.compile_flags += ['-O1'] |
| elif san == 'Undefined': |
| add_ubsan() |
| self.cxx.compile_flags += ['-O2'] |
| elif san == 'Thread': |
| self.cxx.flags += ['-fsanitize=thread'] |
| self.config.available_features.add('tsan') |
| self.config.available_features.add('sanitizer-new-delete') |
| else: |
| self.lit_config.fatal('unsupported value for ' |
| 'use_sanitizer: {0}'.format(san)) |
| san_lib = self.get_lit_conf('sanitizer_library') |
| if san_lib: |
| self.cxx.link_flags += [ |
| san_lib, '-Wl,-rpath,%s' % os.path.dirname(san_lib)] |
| |
| def configure_coverage(self): |
| self.generate_coverage = self.get_lit_bool('generate_coverage', False) |
| if self.generate_coverage: |
| self.cxx.flags += ['-g', '--coverage'] |
| self.cxx.compile_flags += ['-O0'] |
| |
| def configure_coroutines(self): |
| if self.cxx.hasCompileFlag('-fcoroutines-ts'): |
| macros = self.cxx.dumpMacros(flags=['-fcoroutines-ts']) |
| if '__cpp_coroutines' not in macros: |
| self.lit_config.warning('-fcoroutines-ts is supported but ' |
| '__cpp_coroutines is not defined') |
| # Consider coroutines supported only when the feature test macro |
| # reflects a recent value. |
| val = macros['__cpp_coroutines'].replace('L', '') |
| if int(val) >= 201703: |
| self.config.available_features.add('fcoroutines-ts') |
| |
| def configure_modules(self): |
| modules_flags = ['-fmodules'] |
| if platform.system() != 'Darwin': |
| modules_flags += ['-Xclang', '-fmodules-local-submodule-visibility'] |
| supports_modules = self.cxx.hasCompileFlag(modules_flags) |
| enable_modules = self.get_modules_enabled() |
| if enable_modules and not supports_modules: |
| self.lit_config.fatal( |
| '-fmodules is enabled but not supported by the compiler') |
| if not supports_modules: |
| return |
| self.config.available_features.add('modules-support') |
| module_cache = os.path.join(self.config.test_exec_root, |
| 'modules.cache') |
| module_cache = os.path.realpath(module_cache) |
| if os.path.isdir(module_cache): |
| shutil.rmtree(module_cache) |
| os.makedirs(module_cache) |
| self.cxx.modules_flags = modules_flags + \ |
| ['-fmodules-cache-path=' + module_cache] |
| if enable_modules: |
| self.config.available_features.add('-fmodules') |
| self.cxx.useModules() |
| |
| def configure_substitutions(self): |
| sub = self.config.substitutions |
| cxx_path = pipes.quote(self.cxx.path) |
| # Configure compiler substitutions |
| sub.append(('%cxx', cxx_path)) |
| sub.append(('%libcxx_src_root', self.libcxx_src_root)) |
| # Configure flags substitutions |
| flags_str = ' '.join([pipes.quote(f) for f in self.cxx.flags]) |
| compile_flags_str = ' '.join([pipes.quote(f) for f in self.cxx.compile_flags]) |
| link_flags_str = ' '.join([pipes.quote(f) for f in self.cxx.link_flags]) |
| all_flags = '%s %s %s' % (flags_str, compile_flags_str, link_flags_str) |
| sub.append(('%flags', flags_str)) |
| sub.append(('%compile_flags', compile_flags_str)) |
| sub.append(('%link_flags', link_flags_str)) |
| sub.append(('%all_flags', all_flags)) |
| if self.cxx.isVerifySupported(): |
| verify_str = ' ' + ' '.join(self.cxx.verify_flags) + ' ' |
| sub.append(('%verify', verify_str)) |
| # Add compile and link shortcuts |
| compile_str = (cxx_path + ' -o %t.o %s -c ' + flags_str |
| + ' ' + compile_flags_str) |
| link_str = (cxx_path + ' -o %t.exe %t.o ' + flags_str + ' ' |
| + link_flags_str) |
| assert type(link_str) is str |
| build_str = cxx_path + ' -o %t.exe %s ' + all_flags |
| if self.cxx.use_modules: |
| sub.append(('%compile_module', compile_str)) |
| sub.append(('%build_module', build_str)) |
| elif self.cxx.modules_flags is not None: |
| modules_str = ' '.join(self.cxx.modules_flags) + ' ' |
| sub.append(('%compile_module', compile_str + ' ' + modules_str)) |
| sub.append(('%build_module', build_str + ' ' + modules_str)) |
| sub.append(('%compile', compile_str)) |
| sub.append(('%link', link_str)) |
| sub.append(('%build', build_str)) |
| # Configure exec prefix substitutions. |
| # Configure run env substitution. |
| sub.append(('%run', '%t.exe')) |
| # Configure not program substitutions |
| not_py = os.path.join(self.libcxx_src_root, 'utils', 'not.py') |
| not_str = '%s %s ' % (pipes.quote(sys.executable), pipes.quote(not_py)) |
| sub.append(('not ', not_str)) |
| |
| def can_use_deployment(self): |
| # Check if the host is on an Apple platform using clang. |
| if not self.target_info.platform() == "darwin": |
| return False |
| if not self.target_info.is_host_macosx(): |
| return False |
| if not self.cxx.type.endswith('clang'): |
| return False |
| return True |
| |
| def configure_triple(self): |
| # Get or infer the target triple. |
| target_triple = self.get_lit_conf('target_triple') |
| self.use_target = self.get_lit_bool('use_target', False) |
| if self.use_target and target_triple: |
| self.lit_config.warning('use_target is true but no triple is specified') |
| |
| # Use deployment if possible. |
| self.use_deployment = not self.use_target and self.can_use_deployment() |
| if self.use_deployment: |
| return |
| |
| # Save the triple (and warn on Apple platforms). |
| self.config.target_triple = target_triple |
| if self.use_target and 'apple' in target_triple: |
| self.lit_config.warning('consider using arch and platform instead' |
| ' of target_triple on Apple platforms') |
| |
| # If no target triple was given, try to infer it from the compiler |
| # under test. |
| if not self.config.target_triple: |
| target_triple = self.cxx.getTriple() |
| # Drop sub-major version components from the triple, because the |
| # current XFAIL handling expects exact matches for feature checks. |
| # Example: x86_64-apple-darwin14.0.0 -> x86_64-apple-darwin14 |
| # The 5th group handles triples greater than 3 parts |
| # (ex x86_64-pc-linux-gnu). |
| target_triple = re.sub(r'([^-]+)-([^-]+)-([^.]+)([^-]*)(.*)', |
| r'\1-\2-\3\5', target_triple) |
| # linux-gnu is needed in the triple to properly identify linuxes |
| # that use GLIBC. Handle redhat and opensuse triples as special |
| # cases and append the missing `-gnu` portion. |
| if (target_triple.endswith('redhat-linux') or |
| target_triple.endswith('suse-linux')): |
| target_triple += '-gnu' |
| self.config.target_triple = target_triple |
| self.lit_config.note( |
| "inferred target_triple as: %r" % self.config.target_triple) |
| |
| def configure_deployment(self): |
| assert not self.use_deployment is None |
| assert not self.use_target is None |
| if not self.use_deployment: |
| # Warn about ignored parameters. |
| if self.get_lit_conf('arch'): |
| self.lit_config.warning('ignoring arch, using target_triple') |
| if self.get_lit_conf('platform'): |
| self.lit_config.warning('ignoring platform, using target_triple') |
| return |
| |
| assert not self.use_target |
| assert self.target_info.is_host_macosx() |
| |
| # Always specify deployment explicitly on Apple platforms, since |
| # otherwise a platform is picked up from the SDK. If the SDK version |
| # doesn't match the system version, tests that use the system library |
| # may fail spuriously. |
| arch = self.get_lit_conf('arch') |
| if not arch: |
| arch = self.cxx.getTriple().split('-', 1)[0] |
| self.lit_config.note("inferred arch as: %r" % arch) |
| |
| inferred_platform, name, version = self.target_info.get_platform() |
| if inferred_platform: |
| self.lit_config.note("inferred platform as: %r" % (name + version)) |
| self.config.deployment = (arch, name, version) |
| |
| # Set the target triple for use by lit. |
| self.config.target_triple = arch + '-apple-' + name + version |
| self.lit_config.note( |
| "computed target_triple as: %r" % self.config.target_triple) |
| |
| def configure_env(self): |
| self.target_info.configure_env(self.exec_env) |
| |
| def add_path(self, dest_env, new_path): |
| if 'PATH' not in dest_env: |
| dest_env['PATH'] = new_path |
| else: |
| split_char = ';' if self.is_windows else ':' |
| dest_env['PATH'] = '%s%s%s' % (new_path, split_char, |
| dest_env['PATH']) |