Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 1 | #===----------------------------------------------------------------------===## |
| 2 | # |
| 3 | # The LLVM Compiler Infrastructure |
| 4 | # |
| 5 | # This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | # Source Licenses. See LICENSE.TXT for details. |
| 7 | # |
| 8 | #===----------------------------------------------------------------------===## |
| 9 | |
| 10 | import locale |
| 11 | import os |
| 12 | import platform |
| 13 | import pkgutil |
| 14 | import pipes |
| 15 | import re |
| 16 | import shlex |
| 17 | import shutil |
| 18 | import sys |
| 19 | |
| 20 | from libcxx.compiler import CXXCompiler |
| 21 | from libcxx.test.target_info import make_target_info |
| 22 | from libcxx.test.executor import * |
| 23 | from libcxx.test.tracing import * |
| 24 | import libcxx.util |
| 25 | |
| 26 | def loadSiteConfig(lit_config, config, param_name, env_name): |
| 27 | # We haven't loaded the site specific configuration (the user is |
| 28 | # probably trying to run on a test file directly, and either the site |
| 29 | # configuration hasn't been created by the build system, or we are in an |
| 30 | # out-of-tree build situation). |
| 31 | site_cfg = lit_config.params.get(param_name, |
| 32 | os.environ.get(env_name)) |
| 33 | if not site_cfg: |
| 34 | lit_config.warning('No site specific configuration file found!' |
| 35 | ' Running the tests in the default configuration.') |
| 36 | elif not os.path.isfile(site_cfg): |
| 37 | lit_config.fatal( |
| 38 | "Specified site configuration file does not exist: '%s'" % |
| 39 | site_cfg) |
| 40 | else: |
| 41 | lit_config.note('using site specific configuration at %s' % site_cfg) |
| 42 | ld_fn = lit_config.load_config |
| 43 | |
| 44 | # Null out the load_config function so that lit.site.cfg doesn't |
| 45 | # recursively load a config even if it tries. |
| 46 | # TODO: This is one hell of a hack. Fix it. |
| 47 | def prevent_reload_fn(*args, **kwargs): |
| 48 | pass |
| 49 | lit_config.load_config = prevent_reload_fn |
| 50 | ld_fn(config, site_cfg) |
| 51 | lit_config.load_config = ld_fn |
| 52 | |
Richard Smith | 5aa2780 | 2018-06-17 19:58:45 +0000 | [diff] [blame] | 53 | # Extract the value of a numeric macro such as __cplusplus or a feature-test |
| 54 | # macro. |
| 55 | def intMacroValue(token): |
| 56 | return int(token.rstrip('LlUu')) |
| 57 | |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 58 | class Configuration(object): |
| 59 | # pylint: disable=redefined-outer-name |
| 60 | def __init__(self, lit_config, config): |
| 61 | self.lit_config = lit_config |
| 62 | self.config = config |
| 63 | self.is_windows = platform.system() == 'Windows' |
| 64 | self.cxx = None |
| 65 | self.cxx_is_clang_cl = None |
| 66 | self.cxx_stdlib_under_test = None |
| 67 | self.project_obj_root = None |
| 68 | self.libcxx_src_root = None |
| 69 | self.libcxx_obj_root = None |
| 70 | self.cxx_library_root = None |
| 71 | self.cxx_runtime_root = None |
| 72 | self.abi_library_root = None |
| 73 | self.link_shared = self.get_lit_bool('enable_shared', default=True) |
| 74 | self.debug_build = self.get_lit_bool('debug_build', default=False) |
Eric Fiselier | f715326 | 2017-05-10 00:05:04 +0000 | [diff] [blame] | 75 | self.exec_env = dict(os.environ) |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 76 | self.use_target = False |
| 77 | self.use_system_cxx_lib = False |
| 78 | self.use_clang_verify = False |
| 79 | self.long_tests = None |
| 80 | self.execute_external = False |
| 81 | |
| 82 | def get_lit_conf(self, name, default=None): |
| 83 | val = self.lit_config.params.get(name, None) |
| 84 | if val is None: |
| 85 | val = getattr(self.config, name, None) |
| 86 | if val is None: |
| 87 | val = default |
| 88 | return val |
| 89 | |
| 90 | def get_lit_bool(self, name, default=None, env_var=None): |
| 91 | def check_value(value, var_name): |
| 92 | if value is None: |
| 93 | return default |
| 94 | if isinstance(value, bool): |
| 95 | return value |
| 96 | if not isinstance(value, str): |
| 97 | raise TypeError('expected bool or string') |
| 98 | if value.lower() in ('1', 'true'): |
| 99 | return True |
| 100 | if value.lower() in ('', '0', 'false'): |
| 101 | return False |
| 102 | self.lit_config.fatal( |
| 103 | "parameter '{}' should be true or false".format(var_name)) |
| 104 | |
| 105 | conf_val = self.get_lit_conf(name) |
| 106 | if env_var is not None and env_var in os.environ and \ |
| 107 | os.environ[env_var] is not None: |
| 108 | val = os.environ[env_var] |
| 109 | if conf_val is not None: |
| 110 | self.lit_config.warning( |
| 111 | 'Environment variable %s=%s is overriding explicit ' |
| 112 | '--param=%s=%s' % (env_var, val, name, conf_val)) |
| 113 | return check_value(val, env_var) |
| 114 | return check_value(conf_val, name) |
| 115 | |
Eric Fiselier | 954bf04 | 2017-06-15 02:54:15 +0000 | [diff] [blame] | 116 | def get_modules_enabled(self): |
| 117 | return self.get_lit_bool('enable_modules', |
| 118 | default=False, |
| 119 | env_var='LIBCXX_ENABLE_MODULES') |
| 120 | |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 121 | def make_static_lib_name(self, name): |
| 122 | """Return the full filename for the specified library name""" |
| 123 | if self.is_windows: |
| 124 | assert name == 'c++' # Only allow libc++ to use this function for now. |
| 125 | return 'lib' + name + '.lib' |
| 126 | else: |
| 127 | return 'lib' + name + '.a' |
| 128 | |
| 129 | def configure(self): |
| 130 | self.configure_executor() |
| 131 | self.configure_use_system_cxx_lib() |
| 132 | self.configure_target_info() |
| 133 | self.configure_cxx() |
| 134 | self.configure_triple() |
| 135 | self.configure_deployment() |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 136 | self.configure_src_root() |
| 137 | self.configure_obj_root() |
| 138 | self.configure_cxx_stdlib_under_test() |
| 139 | self.configure_cxx_library_root() |
| 140 | self.configure_use_clang_verify() |
| 141 | self.configure_use_thread_safety() |
| 142 | self.configure_execute_external() |
| 143 | self.configure_ccache() |
| 144 | self.configure_compile_flags() |
| 145 | self.configure_filesystem_compile_flags() |
| 146 | self.configure_link_flags() |
| 147 | self.configure_env() |
| 148 | self.configure_color_diagnostics() |
| 149 | self.configure_debug_mode() |
| 150 | self.configure_warnings() |
| 151 | self.configure_sanitizer() |
| 152 | self.configure_coverage() |
| 153 | self.configure_modules() |
Eric Fiselier | 737c3bf | 2017-05-25 04:36:24 +0000 | [diff] [blame] | 154 | self.configure_coroutines() |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 155 | self.configure_substitutions() |
| 156 | self.configure_features() |
| 157 | |
| 158 | def print_config_info(self): |
| 159 | # Print the final compile and link flags. |
| 160 | self.lit_config.note('Using compiler: %s' % self.cxx.path) |
| 161 | self.lit_config.note('Using flags: %s' % self.cxx.flags) |
| 162 | if self.cxx.use_modules: |
| 163 | self.lit_config.note('Using modules flags: %s' % |
| 164 | self.cxx.modules_flags) |
| 165 | self.lit_config.note('Using compile flags: %s' |
| 166 | % self.cxx.compile_flags) |
| 167 | if len(self.cxx.warning_flags): |
| 168 | self.lit_config.note('Using warnings: %s' % self.cxx.warning_flags) |
| 169 | self.lit_config.note('Using link flags: %s' % self.cxx.link_flags) |
| 170 | # Print as list to prevent "set([...])" from being printed. |
| 171 | self.lit_config.note('Using available_features: %s' % |
| 172 | list(self.config.available_features)) |
Eric Fiselier | 4680f0c | 2017-05-10 00:23:58 +0000 | [diff] [blame] | 173 | show_env_vars = {} |
| 174 | for k,v in self.exec_env.items(): |
| 175 | if k not in os.environ or os.environ[k] != v: |
| 176 | show_env_vars[k] = v |
| 177 | self.lit_config.note('Adding environment variables: %r' % show_env_vars) |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 178 | sys.stderr.flush() # Force flushing to avoid broken output on Windows |
| 179 | |
| 180 | def get_test_format(self): |
| 181 | from libcxx.test.format import LibcxxTestFormat |
| 182 | return LibcxxTestFormat( |
| 183 | self.cxx, |
| 184 | self.use_clang_verify, |
| 185 | self.execute_external, |
| 186 | self.executor, |
| 187 | exec_env=self.exec_env) |
| 188 | |
| 189 | def configure_executor(self): |
| 190 | exec_str = self.get_lit_conf('executor', "None") |
| 191 | te = eval(exec_str) |
| 192 | if te: |
| 193 | self.lit_config.note("Using executor: %r" % exec_str) |
| 194 | if self.lit_config.useValgrind: |
| 195 | # We have no way of knowing where in the chain the |
| 196 | # ValgrindExecutor is supposed to go. It is likely |
| 197 | # that the user wants it at the end, but we have no |
| 198 | # way of getting at that easily. |
| 199 | selt.lit_config.fatal("Cannot infer how to create a Valgrind " |
| 200 | " executor.") |
| 201 | else: |
| 202 | te = LocalExecutor() |
| 203 | if self.lit_config.useValgrind: |
| 204 | te = ValgrindExecutor(self.lit_config.valgrindArgs, te) |
| 205 | self.executor = te |
| 206 | |
| 207 | def configure_target_info(self): |
| 208 | self.target_info = make_target_info(self) |
| 209 | |
| 210 | def configure_cxx(self): |
| 211 | # Gather various compiler parameters. |
| 212 | cxx = self.get_lit_conf('cxx_under_test') |
| 213 | self.cxx_is_clang_cl = cxx is not None and \ |
| 214 | os.path.basename(cxx) == 'clang-cl.exe' |
| 215 | # If no specific cxx_under_test was given, attempt to infer it as |
| 216 | # clang++. |
| 217 | if cxx is None or self.cxx_is_clang_cl: |
| 218 | search_paths = self.config.environment['PATH'] |
| 219 | if cxx is not None and os.path.isabs(cxx): |
| 220 | search_paths = os.path.dirname(cxx) |
| 221 | clangxx = libcxx.util.which('clang++', search_paths) |
| 222 | if clangxx: |
| 223 | cxx = clangxx |
| 224 | self.lit_config.note( |
| 225 | "inferred cxx_under_test as: %r" % cxx) |
| 226 | elif self.cxx_is_clang_cl: |
| 227 | self.lit_config.fatal('Failed to find clang++ substitution for' |
| 228 | ' clang-cl') |
| 229 | if not cxx: |
| 230 | self.lit_config.fatal('must specify user parameter cxx_under_test ' |
| 231 | '(e.g., --param=cxx_under_test=clang++)') |
| 232 | self.cxx = CXXCompiler(cxx) if not self.cxx_is_clang_cl else \ |
| 233 | self._configure_clang_cl(cxx) |
| 234 | cxx_type = self.cxx.type |
| 235 | if cxx_type is not None: |
| 236 | assert self.cxx.version is not None |
| 237 | maj_v, min_v, _ = self.cxx.version |
| 238 | self.config.available_features.add(cxx_type) |
| 239 | self.config.available_features.add('%s-%s' % (cxx_type, maj_v)) |
| 240 | self.config.available_features.add('%s-%s.%s' % ( |
| 241 | cxx_type, maj_v, min_v)) |
| 242 | self.cxx.compile_env = dict(os.environ) |
| 243 | # 'CCACHE_CPP2' prevents ccache from stripping comments while |
| 244 | # preprocessing. This is required to prevent stripping of '-verify' |
| 245 | # comments. |
| 246 | self.cxx.compile_env['CCACHE_CPP2'] = '1' |
| 247 | |
| 248 | def _configure_clang_cl(self, clang_path): |
| 249 | def _split_env_var(var): |
| 250 | return [p.strip() for p in os.environ.get(var, '').split(';') if p.strip()] |
| 251 | |
| 252 | def _prefixed_env_list(var, prefix): |
| 253 | from itertools import chain |
| 254 | return list(chain.from_iterable((prefix, path) for path in _split_env_var(var))) |
| 255 | |
| 256 | assert self.cxx_is_clang_cl |
| 257 | flags = [] |
| 258 | compile_flags = _prefixed_env_list('INCLUDE', '-isystem') |
| 259 | link_flags = _prefixed_env_list('LIB', '-L') |
| 260 | for path in _split_env_var('LIB'): |
| 261 | self.add_path(self.exec_env, path) |
| 262 | return CXXCompiler(clang_path, flags=flags, |
| 263 | compile_flags=compile_flags, |
| 264 | link_flags=link_flags) |
| 265 | |
Eric Fiselier | 5fe8797 | 2017-10-02 22:52:51 +0000 | [diff] [blame] | 266 | def _dump_macros_verbose(self, *args, **kwargs): |
| 267 | macros_or_error = self.cxx.dumpMacros(*args, **kwargs) |
| 268 | if isinstance(macros_or_error, tuple): |
| 269 | cmd, out, err, rc = macros_or_error |
| 270 | report = libcxx.util.makeReport(cmd, out, err, rc) |
| 271 | report += "Compiler failed unexpectedly when dumping macros!" |
| 272 | self.lit_config.fatal(report) |
| 273 | return None |
| 274 | assert isinstance(macros_or_error, dict) |
| 275 | return macros_or_error |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 276 | |
| 277 | def configure_src_root(self): |
| 278 | self.libcxx_src_root = self.get_lit_conf( |
| 279 | 'libcxx_src_root', os.path.dirname(self.config.test_source_root)) |
| 280 | |
| 281 | def configure_obj_root(self): |
| 282 | self.project_obj_root = self.get_lit_conf('project_obj_root') |
| 283 | self.libcxx_obj_root = self.get_lit_conf('libcxx_obj_root') |
| 284 | if not self.libcxx_obj_root and self.project_obj_root is not None: |
| 285 | possible_root = os.path.join(self.project_obj_root, 'projects', 'libcxx') |
| 286 | if os.path.isdir(possible_root): |
| 287 | self.libcxx_obj_root = possible_root |
| 288 | else: |
| 289 | self.libcxx_obj_root = self.project_obj_root |
| 290 | |
| 291 | def configure_cxx_library_root(self): |
| 292 | self.cxx_library_root = self.get_lit_conf('cxx_library_root', |
| 293 | self.libcxx_obj_root) |
| 294 | self.cxx_runtime_root = self.get_lit_conf('cxx_runtime_root', |
| 295 | self.cxx_library_root) |
| 296 | |
| 297 | def configure_use_system_cxx_lib(self): |
| 298 | # This test suite supports testing against either the system library or |
| 299 | # the locally built one; the former mode is useful for testing ABI |
| 300 | # compatibility between the current headers and a shipping dynamic |
| 301 | # library. |
| 302 | # Default to testing against the locally built libc++ library. |
| 303 | self.use_system_cxx_lib = self.get_lit_conf('use_system_cxx_lib') |
| 304 | if self.use_system_cxx_lib == 'true': |
| 305 | self.use_system_cxx_lib = True |
| 306 | elif self.use_system_cxx_lib == 'false': |
| 307 | self.use_system_cxx_lib = False |
| 308 | elif self.use_system_cxx_lib: |
Louis Dionne | ab883e8 | 2018-11-21 23:00:45 +0000 | [diff] [blame] | 309 | assert os.path.isdir(self.use_system_cxx_lib), "the specified use_system_cxx_lib parameter (%s) is not a valid directory" % self.use_system_cxx_lib |
Louis Dionne | 21e47d9 | 2018-12-06 20:09:15 +0000 | [diff] [blame] | 310 | self.use_system_cxx_lib = os.path.abspath(self.use_system_cxx_lib) |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 311 | self.lit_config.note( |
| 312 | "inferred use_system_cxx_lib as: %r" % self.use_system_cxx_lib) |
| 313 | |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 314 | def configure_cxx_stdlib_under_test(self): |
| 315 | self.cxx_stdlib_under_test = self.get_lit_conf( |
| 316 | 'cxx_stdlib_under_test', 'libc++') |
| 317 | if self.cxx_stdlib_under_test not in \ |
| 318 | ['libc++', 'libstdc++', 'msvc', 'cxx_default']: |
| 319 | self.lit_config.fatal( |
| 320 | 'unsupported value for "cxx_stdlib_under_test": %s' |
| 321 | % self.cxx_stdlib_under_test) |
| 322 | self.config.available_features.add(self.cxx_stdlib_under_test) |
| 323 | if self.cxx_stdlib_under_test == 'libstdc++': |
| 324 | self.config.available_features.add('libstdc++') |
| 325 | # Manually enable the experimental and filesystem tests for libstdc++ |
| 326 | # if the options aren't present. |
| 327 | # FIXME this is a hack. |
| 328 | if self.get_lit_conf('enable_experimental') is None: |
| 329 | self.config.enable_experimental = 'true' |
| 330 | if self.get_lit_conf('enable_filesystem') is None: |
| 331 | self.config.enable_filesystem = 'true' |
| 332 | |
| 333 | def configure_use_clang_verify(self): |
| 334 | '''If set, run clang with -verify on failing tests.''' |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 335 | self.use_clang_verify = self.get_lit_bool('use_clang_verify') |
| 336 | if self.use_clang_verify is None: |
| 337 | # NOTE: We do not test for the -verify flag directly because |
| 338 | # -verify will always exit with non-zero on an empty file. |
| 339 | self.use_clang_verify = self.cxx.isVerifySupported() |
| 340 | self.lit_config.note( |
| 341 | "inferred use_clang_verify as: %r" % self.use_clang_verify) |
| 342 | if self.use_clang_verify: |
| 343 | self.config.available_features.add('verify-support') |
| 344 | |
| 345 | def configure_use_thread_safety(self): |
| 346 | '''If set, run clang with -verify on failing tests.''' |
| 347 | has_thread_safety = self.cxx.hasCompileFlag('-Werror=thread-safety') |
| 348 | if has_thread_safety: |
| 349 | self.cxx.compile_flags += ['-Werror=thread-safety'] |
| 350 | self.config.available_features.add('thread-safety') |
| 351 | self.lit_config.note("enabling thread-safety annotations") |
| 352 | |
| 353 | def configure_execute_external(self): |
| 354 | # Choose between lit's internal shell pipeline runner and a real shell. |
| 355 | # If LIT_USE_INTERNAL_SHELL is in the environment, we use that as the |
| 356 | # default value. Otherwise we ask the target_info. |
| 357 | use_lit_shell_default = os.environ.get('LIT_USE_INTERNAL_SHELL') |
| 358 | if use_lit_shell_default is not None: |
| 359 | use_lit_shell_default = use_lit_shell_default != '0' |
| 360 | else: |
| 361 | use_lit_shell_default = self.target_info.use_lit_shell_default() |
| 362 | # Check for the command line parameter using the default value if it is |
| 363 | # not present. |
| 364 | use_lit_shell = self.get_lit_bool('use_lit_shell', |
| 365 | use_lit_shell_default) |
| 366 | self.execute_external = not use_lit_shell |
| 367 | |
| 368 | def configure_ccache(self): |
| 369 | use_ccache_default = os.environ.get('LIBCXX_USE_CCACHE') is not None |
| 370 | use_ccache = self.get_lit_bool('use_ccache', use_ccache_default) |
| 371 | if use_ccache: |
| 372 | self.cxx.use_ccache = True |
| 373 | self.lit_config.note('enabling ccache') |
| 374 | |
| 375 | def add_deployment_feature(self, feature): |
| 376 | (arch, name, version) = self.config.deployment |
| 377 | self.config.available_features.add('%s=%s-%s' % (feature, arch, name)) |
| 378 | self.config.available_features.add('%s=%s' % (feature, name)) |
| 379 | self.config.available_features.add('%s=%s%s' % (feature, name, version)) |
| 380 | |
| 381 | def configure_features(self): |
| 382 | additional_features = self.get_lit_conf('additional_features') |
| 383 | if additional_features: |
| 384 | for f in additional_features.split(','): |
| 385 | self.config.available_features.add(f.strip()) |
| 386 | self.target_info.add_locale_features(self.config.available_features) |
| 387 | |
| 388 | target_platform = self.target_info.platform() |
| 389 | |
| 390 | # Write an "available feature" that combines the triple when |
| 391 | # use_system_cxx_lib is enabled. This is so that we can easily write |
| 392 | # XFAIL markers for tests that are known to fail with versions of |
| 393 | # libc++ as were shipped with a particular triple. |
| 394 | if self.use_system_cxx_lib: |
| 395 | self.config.available_features.add('with_system_cxx_lib') |
| 396 | self.config.available_features.add( |
| 397 | 'with_system_cxx_lib=%s' % self.config.target_triple) |
| 398 | |
| 399 | # Add subcomponents individually. |
| 400 | target_components = self.config.target_triple.split('-') |
| 401 | for component in target_components: |
| 402 | self.config.available_features.add( |
| 403 | 'with_system_cxx_lib=%s' % component) |
| 404 | |
| 405 | # Add available features for more generic versions of the target |
| 406 | # triple attached to with_system_cxx_lib. |
| 407 | if self.use_deployment: |
| 408 | self.add_deployment_feature('with_system_cxx_lib') |
| 409 | |
Louis Dionne | 682614c | 2018-12-11 18:05:38 +0000 | [diff] [blame] | 410 | # Configure the availability feature. Availability is only enabled |
| 411 | # with libc++, because other standard libraries do not provide |
| 412 | # availability markup. |
| 413 | if self.use_deployment and self.cxx_stdlib_under_test == 'libc++': |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 414 | self.config.available_features.add('availability') |
| 415 | self.add_deployment_feature('availability') |
| 416 | |
| 417 | if platform.system() == 'Darwin': |
| 418 | self.config.available_features.add('apple-darwin') |
| 419 | |
| 420 | # Insert the platform name into the available features as a lower case. |
| 421 | self.config.available_features.add(target_platform) |
| 422 | |
| 423 | # Simulator testing can take a really long time for some of these tests |
| 424 | # so add a feature check so we can REQUIRES: long_tests in them |
| 425 | self.long_tests = self.get_lit_bool('long_tests') |
| 426 | if self.long_tests is None: |
| 427 | # Default to running long tests. |
| 428 | self.long_tests = True |
| 429 | self.lit_config.note( |
| 430 | "inferred long_tests as: %r" % self.long_tests) |
| 431 | |
| 432 | if self.long_tests: |
| 433 | self.config.available_features.add('long_tests') |
| 434 | |
| 435 | # Run a compile test for the -fsized-deallocation flag. This is needed |
| 436 | # in test/std/language.support/support.dynamic/new.delete |
| 437 | if self.cxx.hasCompileFlag('-fsized-deallocation'): |
Louis Dionne | 739fdd4 | 2018-11-21 00:03:17 +0000 | [diff] [blame] | 438 | self.config.available_features.add('-fsized-deallocation') |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 439 | |
| 440 | if self.cxx.hasCompileFlag('-faligned-allocation'): |
| 441 | self.config.available_features.add('-faligned-allocation') |
| 442 | else: |
| 443 | # FIXME remove this once more than just clang-4.0 support |
| 444 | # C++17 aligned allocation. |
| 445 | self.config.available_features.add('no-aligned-allocation') |
| 446 | |
Duncan P. N. Exon Smith | e452f6a | 2017-07-07 05:13:36 +0000 | [diff] [blame] | 447 | if self.cxx.hasCompileFlag('-fdelayed-template-parsing'): |
| 448 | self.config.available_features.add('fdelayed-template-parsing') |
| 449 | |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 450 | if self.get_lit_bool('has_libatomic', False): |
| 451 | self.config.available_features.add('libatomic') |
| 452 | |
Eric Fiselier | 5fe8797 | 2017-10-02 22:52:51 +0000 | [diff] [blame] | 453 | macros = self._dump_macros_verbose() |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 454 | if '__cpp_if_constexpr' not in macros: |
| 455 | self.config.available_features.add('libcpp-no-if-constexpr') |
| 456 | |
| 457 | if '__cpp_structured_bindings' not in macros: |
| 458 | self.config.available_features.add('libcpp-no-structured-bindings') |
| 459 | |
Eric Fiselier | 6878e85 | 2018-02-15 02:41:19 +0000 | [diff] [blame] | 460 | if '__cpp_deduction_guides' not in macros or \ |
Richard Smith | 5aa2780 | 2018-06-17 19:58:45 +0000 | [diff] [blame] | 461 | intMacroValue(macros['__cpp_deduction_guides']) < 201611: |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 462 | self.config.available_features.add('libcpp-no-deduction-guides') |
| 463 | |
| 464 | if self.is_windows: |
| 465 | self.config.available_features.add('windows') |
| 466 | if self.cxx_stdlib_under_test == 'libc++': |
| 467 | # LIBCXX-WINDOWS-FIXME is the feature name used to XFAIL the |
| 468 | # initial Windows failures until they can be properly diagnosed |
| 469 | # and fixed. This allows easier detection of new test failures |
| 470 | # and regressions. Note: New failures should not be suppressed |
| 471 | # using this feature. (Also see llvm.org/PR32730) |
| 472 | self.config.available_features.add('LIBCXX-WINDOWS-FIXME') |
| 473 | |
| 474 | # Attempt to detect the glibc version by querying for __GLIBC__ |
| 475 | # in 'features.h'. |
Eric Fiselier | 28dd96b | 2017-10-03 02:25:05 +0000 | [diff] [blame] | 476 | macros = self.cxx.dumpMacros(flags=['-include', 'features.h']) |
| 477 | if isinstance(macros, dict) and '__GLIBC__' in macros: |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 478 | maj_v, min_v = (macros['__GLIBC__'], macros['__GLIBC_MINOR__']) |
| 479 | self.config.available_features.add('glibc') |
| 480 | self.config.available_features.add('glibc-%s' % maj_v) |
| 481 | self.config.available_features.add('glibc-%s.%s' % (maj_v, min_v)) |
| 482 | |
Erik Pilkington | 64182a5 | 2017-05-19 23:02:49 +0000 | [diff] [blame] | 483 | # Support Objective-C++ only on MacOS and if the compiler supports it. |
| 484 | if self.target_info.platform() == "darwin" and \ |
| 485 | self.target_info.is_host_macosx() and \ |
| 486 | self.cxx.hasCompileFlag(["-x", "objective-c++", "-fobjc-arc"]): |
| 487 | self.config.available_features.add("objective-c++") |
| 488 | |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 489 | def configure_compile_flags(self): |
Louis Dionne | 3b06e97 | 2018-12-11 17:29:55 +0000 | [diff] [blame] | 490 | self.configure_default_compile_flags() |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 491 | # Configure extra flags |
| 492 | compile_flags_str = self.get_lit_conf('compile_flags', '') |
| 493 | self.cxx.compile_flags += shlex.split(compile_flags_str) |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 494 | if self.is_windows: |
Eric Fiselier | a99bc15 | 2017-05-31 23:27:25 +0000 | [diff] [blame] | 495 | # FIXME: Can we remove this? |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 496 | self.cxx.compile_flags += ['-D_CRT_SECURE_NO_WARNINGS'] |
Eric Fiselier | a99bc15 | 2017-05-31 23:27:25 +0000 | [diff] [blame] | 497 | # Required so that tests using min/max don't fail on Windows, |
| 498 | # and so that those tests don't have to be changed to tolerate |
| 499 | # this insanity. |
| 500 | self.cxx.compile_flags += ['-DNOMINMAX'] |
Alexander Richardson | 9880456 | 2018-02-23 15:19:48 +0000 | [diff] [blame] | 501 | additional_flags = self.get_lit_conf('test_compiler_flags') |
| 502 | if additional_flags: |
| 503 | self.cxx.compile_flags += shlex.split(additional_flags) |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 504 | |
| 505 | def configure_default_compile_flags(self): |
| 506 | # Try and get the std version from the command line. Fall back to |
| 507 | # default given in lit.site.cfg is not present. If default is not |
| 508 | # present then force c++11. |
| 509 | std = self.get_lit_conf('std') |
| 510 | if not std: |
| 511 | # Choose the newest possible language dialect if none is given. |
Eric Fiselier | 7e73ea8 | 2017-11-07 20:26:23 +0000 | [diff] [blame] | 512 | possible_stds = ['c++2a', 'c++17', 'c++1z', 'c++14', 'c++11', |
| 513 | 'c++03'] |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 514 | if self.cxx.type == 'gcc': |
| 515 | maj_v, _, _ = self.cxx.version |
| 516 | maj_v = int(maj_v) |
| 517 | if maj_v < 7: |
| 518 | possible_stds.remove('c++1z') |
| 519 | # FIXME: How many C++14 tests actually fail under GCC 5 and 6? |
| 520 | # Should we XFAIL them individually instead? |
| 521 | if maj_v <= 6: |
| 522 | possible_stds.remove('c++14') |
| 523 | for s in possible_stds: |
| 524 | if self.cxx.hasCompileFlag('-std=%s' % s): |
| 525 | std = s |
| 526 | self.lit_config.note( |
| 527 | 'inferred language dialect as: %s' % std) |
| 528 | break |
| 529 | if not std: |
| 530 | self.lit_config.fatal( |
| 531 | 'Failed to infer a supported language dialect from one of %r' |
| 532 | % possible_stds) |
| 533 | self.cxx.compile_flags += ['-std={0}'.format(std)] |
Eric Fiselier | 6efb1c1 | 2017-11-07 20:20:58 +0000 | [diff] [blame] | 534 | std_feature = std.replace('gnu++', 'c++') |
| 535 | std_feature = std.replace('1z', '17') |
| 536 | self.config.available_features.add(std_feature) |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 537 | # Configure include paths |
| 538 | self.configure_compile_flags_header_includes() |
| 539 | self.target_info.add_cxx_compile_flags(self.cxx.compile_flags) |
| 540 | # Configure feature flags. |
| 541 | self.configure_compile_flags_exceptions() |
| 542 | self.configure_compile_flags_rtti() |
| 543 | self.configure_compile_flags_abi_version() |
| 544 | enable_32bit = self.get_lit_bool('enable_32bit', False) |
| 545 | if enable_32bit: |
| 546 | self.cxx.flags += ['-m32'] |
| 547 | # Use verbose output for better errors |
| 548 | self.cxx.flags += ['-v'] |
| 549 | sysroot = self.get_lit_conf('sysroot') |
| 550 | if sysroot: |
| 551 | self.cxx.flags += ['--sysroot', sysroot] |
| 552 | gcc_toolchain = self.get_lit_conf('gcc_toolchain') |
| 553 | if gcc_toolchain: |
| 554 | self.cxx.flags += ['-gcc-toolchain', gcc_toolchain] |
| 555 | # NOTE: the _DEBUG definition must preceed the triple check because for |
| 556 | # the Windows build of libc++, the forced inclusion of a header requires |
| 557 | # that _DEBUG is defined. Incorrect ordering will result in -target |
| 558 | # being elided. |
| 559 | if self.is_windows and self.debug_build: |
| 560 | self.cxx.compile_flags += ['-D_DEBUG'] |
| 561 | if self.use_target: |
| 562 | if not self.cxx.addFlagIfSupported( |
| 563 | ['-target', self.config.target_triple]): |
| 564 | self.lit_config.warning('use_target is true but -target is '\ |
| 565 | 'not supported by the compiler') |
| 566 | if self.use_deployment: |
| 567 | arch, name, version = self.config.deployment |
| 568 | self.cxx.flags += ['-arch', arch] |
| 569 | self.cxx.flags += ['-m' + name + '-version-min=' + version] |
| 570 | |
Louis Dionne | 3b06e97 | 2018-12-11 17:29:55 +0000 | [diff] [blame] | 571 | # Add includes for support headers used in the tests. |
| 572 | support_path = os.path.join(self.libcxx_src_root, 'test/support') |
| 573 | self.cxx.compile_flags += ['-I' + support_path] |
| 574 | |
Eric Fiselier | 7228160 | 2017-11-19 09:46:34 +0000 | [diff] [blame] | 575 | # FIXME(EricWF): variant_size.pass.cpp requires a slightly larger |
| 576 | # template depth with older Clang versions. |
| 577 | self.cxx.addFlagIfSupported('-ftemplate-depth=270') |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 578 | |
| 579 | def configure_compile_flags_header_includes(self): |
| 580 | support_path = os.path.join(self.libcxx_src_root, 'test', 'support') |
Ben Craig | c6aa3e7 | 2017-05-09 01:34:12 +0000 | [diff] [blame] | 581 | self.configure_config_site_header() |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 582 | if self.cxx_stdlib_under_test != 'libstdc++' and \ |
| 583 | not self.is_windows: |
| 584 | self.cxx.compile_flags += [ |
| 585 | '-include', os.path.join(support_path, 'nasty_macros.hpp')] |
| 586 | if self.cxx_stdlib_under_test == 'msvc': |
| 587 | self.cxx.compile_flags += [ |
| 588 | '-include', os.path.join(support_path, |
| 589 | 'msvc_stdlib_force_include.hpp')] |
| 590 | pass |
| 591 | if self.is_windows and self.debug_build and \ |
| 592 | self.cxx_stdlib_under_test != 'msvc': |
| 593 | self.cxx.compile_flags += [ |
| 594 | '-include', os.path.join(support_path, |
| 595 | 'set_windows_crt_report_mode.h') |
| 596 | ] |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 597 | cxx_headers = self.get_lit_conf('cxx_headers') |
| 598 | if cxx_headers == '' or (cxx_headers is None |
| 599 | and self.cxx_stdlib_under_test != 'libc++'): |
| 600 | self.lit_config.note('using the system cxx headers') |
| 601 | return |
| 602 | self.cxx.compile_flags += ['-nostdinc++'] |
| 603 | if cxx_headers is None: |
| 604 | cxx_headers = os.path.join(self.libcxx_src_root, 'include') |
| 605 | if not os.path.isdir(cxx_headers): |
| 606 | self.lit_config.fatal("cxx_headers='%s' is not a directory." |
| 607 | % cxx_headers) |
| 608 | self.cxx.compile_flags += ['-I' + cxx_headers] |
| 609 | if self.libcxx_obj_root is not None: |
| 610 | cxxabi_headers = os.path.join(self.libcxx_obj_root, 'include', |
| 611 | 'c++build') |
| 612 | if os.path.isdir(cxxabi_headers): |
| 613 | self.cxx.compile_flags += ['-I' + cxxabi_headers] |
| 614 | |
| 615 | def configure_config_site_header(self): |
| 616 | # Check for a possible __config_site in the build directory. We |
| 617 | # use this if it exists. |
| 618 | if self.libcxx_obj_root is None: |
| 619 | return |
| 620 | config_site_header = os.path.join(self.libcxx_obj_root, '__config_site') |
| 621 | if not os.path.isfile(config_site_header): |
| 622 | return |
| 623 | contained_macros = self.parse_config_site_and_add_features( |
| 624 | config_site_header) |
| 625 | self.lit_config.note('Using __config_site header %s with macros: %r' |
| 626 | % (config_site_header, contained_macros)) |
| 627 | # FIXME: This must come after the call to |
| 628 | # 'parse_config_site_and_add_features(...)' in order for it to work. |
| 629 | self.cxx.compile_flags += ['-include', config_site_header] |
| 630 | |
| 631 | def parse_config_site_and_add_features(self, header): |
| 632 | """ parse_config_site_and_add_features - Deduce and add the test |
| 633 | features that that are implied by the #define's in the __config_site |
| 634 | header. Return a dictionary containing the macros found in the |
| 635 | '__config_site' header. |
| 636 | """ |
| 637 | # Parse the macro contents of __config_site by dumping the macros |
| 638 | # using 'c++ -dM -E' and filtering the predefines. |
Eric Fiselier | 5fe8797 | 2017-10-02 22:52:51 +0000 | [diff] [blame] | 639 | predefines = self._dump_macros_verbose() |
| 640 | macros = self._dump_macros_verbose(header) |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 641 | feature_macros_keys = set(macros.keys()) - set(predefines.keys()) |
| 642 | feature_macros = {} |
| 643 | for k in feature_macros_keys: |
| 644 | feature_macros[k] = macros[k] |
| 645 | # We expect the header guard to be one of the definitions |
| 646 | assert '_LIBCPP_CONFIG_SITE' in feature_macros |
| 647 | del feature_macros['_LIBCPP_CONFIG_SITE'] |
| 648 | # The __config_site header should be non-empty. Otherwise it should |
| 649 | # have never been emitted by CMake. |
| 650 | assert len(feature_macros) > 0 |
Eric Fiselier | 954bf04 | 2017-06-15 02:54:15 +0000 | [diff] [blame] | 651 | # FIXME: This is a hack that should be fixed using module maps (or something) |
| 652 | # If modules are enabled then we have to lift all of the definitions |
| 653 | # in __config_site onto the command line. |
| 654 | modules_enabled = self.get_modules_enabled() |
| 655 | self.cxx.compile_flags += ['-Wno-macro-redefined'] |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 656 | # Transform each macro name into the feature name used in the tests. |
| 657 | # Ex. _LIBCPP_HAS_NO_THREADS -> libcpp-has-no-threads |
| 658 | for m in feature_macros: |
Eric Fiselier | 954bf04 | 2017-06-15 02:54:15 +0000 | [diff] [blame] | 659 | if modules_enabled: |
| 660 | define = '-D%s' % m |
| 661 | if feature_macros[m]: |
| 662 | define += '=%s' % (feature_macros[m]) |
| 663 | self.cxx.compile_flags += [define] |
Louis Dionne | 61b0a00 | 2018-08-16 12:44:28 +0000 | [diff] [blame] | 664 | if m == '_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS' or \ |
| 665 | m == '_LIBCPP_HIDE_FROM_ABI_PER_TU_BY_DEFAULT': |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 666 | continue |
| 667 | if m == '_LIBCPP_ABI_VERSION': |
| 668 | self.config.available_features.add('libcpp-abi-version-v%s' |
| 669 | % feature_macros[m]) |
| 670 | continue |
Shoaib Meenai | 18dba06 | 2017-10-09 19:25:17 +0000 | [diff] [blame] | 671 | if m == '_LIBCPP_NO_VCRUNTIME': |
| 672 | self.config.available_features.add('libcpp-no-vcruntime') |
| 673 | continue |
Shoaib Meenai | 2bba98e | 2017-10-04 23:17:12 +0000 | [diff] [blame] | 674 | assert m.startswith('_LIBCPP_HAS_') or m.startswith('_LIBCPP_ABI_') |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 675 | m = m.lower()[1:].replace('_', '-') |
| 676 | self.config.available_features.add(m) |
| 677 | return feature_macros |
| 678 | |
| 679 | |
| 680 | |
| 681 | def configure_compile_flags_exceptions(self): |
| 682 | enable_exceptions = self.get_lit_bool('enable_exceptions', True) |
| 683 | if not enable_exceptions: |
| 684 | self.config.available_features.add('libcpp-no-exceptions') |
| 685 | self.cxx.compile_flags += ['-fno-exceptions'] |
| 686 | |
| 687 | def configure_compile_flags_rtti(self): |
| 688 | enable_rtti = self.get_lit_bool('enable_rtti', True) |
| 689 | if not enable_rtti: |
| 690 | self.config.available_features.add('libcpp-no-rtti') |
| 691 | self.cxx.compile_flags += ['-fno-rtti', '-D_LIBCPP_NO_RTTI'] |
| 692 | |
| 693 | def configure_compile_flags_abi_version(self): |
| 694 | abi_version = self.get_lit_conf('abi_version', '').strip() |
| 695 | abi_unstable = self.get_lit_bool('abi_unstable') |
| 696 | # Only add the ABI version when it is non-default. |
| 697 | # FIXME(EricWF): Get the ABI version from the "__config_site". |
| 698 | if abi_version and abi_version != '1': |
| 699 | self.cxx.compile_flags += ['-D_LIBCPP_ABI_VERSION=' + abi_version] |
| 700 | if abi_unstable: |
| 701 | self.config.available_features.add('libcpp-abi-unstable') |
| 702 | self.cxx.compile_flags += ['-D_LIBCPP_ABI_UNSTABLE'] |
| 703 | |
| 704 | def configure_filesystem_compile_flags(self): |
| 705 | enable_fs = self.get_lit_bool('enable_filesystem', default=False) |
| 706 | if not enable_fs: |
| 707 | return |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 708 | self.config.available_features.add('c++filesystem') |
| 709 | static_env = os.path.join(self.libcxx_src_root, 'test', 'std', |
Eric Fiselier | a0866c5 | 2018-07-27 03:07:09 +0000 | [diff] [blame] | 710 | 'input.output', 'filesystems', 'Inputs', 'static_test_env') |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 711 | static_env = os.path.realpath(static_env) |
| 712 | assert os.path.isdir(static_env) |
| 713 | self.cxx.compile_flags += ['-DLIBCXX_FILESYSTEM_STATIC_TEST_ROOT="%s"' % static_env] |
| 714 | |
| 715 | dynamic_env = os.path.join(self.config.test_exec_root, |
| 716 | 'filesystem', 'Output', 'dynamic_env') |
| 717 | dynamic_env = os.path.realpath(dynamic_env) |
| 718 | if not os.path.isdir(dynamic_env): |
| 719 | os.makedirs(dynamic_env) |
| 720 | self.cxx.compile_flags += ['-DLIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT="%s"' % dynamic_env] |
| 721 | self.exec_env['LIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT'] = ("%s" % dynamic_env) |
| 722 | |
| 723 | dynamic_helper = os.path.join(self.libcxx_src_root, 'test', 'support', |
| 724 | 'filesystem_dynamic_test_helper.py') |
| 725 | assert os.path.isfile(dynamic_helper) |
| 726 | |
| 727 | self.cxx.compile_flags += ['-DLIBCXX_FILESYSTEM_DYNAMIC_TEST_HELPER="%s %s"' |
| 728 | % (sys.executable, dynamic_helper)] |
| 729 | |
| 730 | |
| 731 | def configure_link_flags(self): |
Louis Dionne | 3b06e97 | 2018-12-11 17:29:55 +0000 | [diff] [blame] | 732 | # Configure library path |
| 733 | self.configure_link_flags_cxx_library_path() |
| 734 | self.configure_link_flags_abi_library_path() |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 735 | |
Louis Dionne | 3b06e97 | 2018-12-11 17:29:55 +0000 | [diff] [blame] | 736 | # Configure libraries |
| 737 | if self.cxx_stdlib_under_test == 'libc++': |
| 738 | self.cxx.link_flags += ['-nodefaultlibs'] |
| 739 | # FIXME: Handle MSVCRT as part of the ABI library handling. |
| 740 | if self.is_windows: |
| 741 | self.cxx.link_flags += ['-nostdlib'] |
| 742 | self.configure_link_flags_cxx_library() |
| 743 | self.configure_link_flags_abi_library() |
| 744 | self.configure_extra_library_flags() |
| 745 | elif self.cxx_stdlib_under_test == 'libstdc++': |
| 746 | enable_fs = self.get_lit_bool('enable_filesystem', |
| 747 | default=False) |
| 748 | if enable_fs: |
| 749 | self.config.available_features.add('c++experimental') |
| 750 | self.cxx.link_flags += ['-lstdc++fs'] |
| 751 | self.cxx.link_flags += ['-lm', '-pthread'] |
| 752 | elif self.cxx_stdlib_under_test == 'msvc': |
| 753 | # FIXME: Correctly setup debug/release flags here. |
| 754 | pass |
| 755 | elif self.cxx_stdlib_under_test == 'cxx_default': |
| 756 | self.cxx.link_flags += ['-pthread'] |
| 757 | else: |
| 758 | self.lit_config.fatal('invalid stdlib under test') |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 759 | |
| 760 | link_flags_str = self.get_lit_conf('link_flags', '') |
| 761 | self.cxx.link_flags += shlex.split(link_flags_str) |
| 762 | |
| 763 | def configure_link_flags_cxx_library_path(self): |
| 764 | if not self.use_system_cxx_lib: |
| 765 | if self.cxx_library_root: |
| 766 | self.cxx.link_flags += ['-L' + self.cxx_library_root] |
| 767 | if self.is_windows and self.link_shared: |
| 768 | self.add_path(self.cxx.compile_env, self.cxx_library_root) |
| 769 | if self.cxx_runtime_root: |
| 770 | if not self.is_windows: |
| 771 | self.cxx.link_flags += ['-Wl,-rpath,' + |
| 772 | self.cxx_runtime_root] |
| 773 | elif self.is_windows and self.link_shared: |
| 774 | self.add_path(self.exec_env, self.cxx_runtime_root) |
| 775 | elif os.path.isdir(str(self.use_system_cxx_lib)): |
| 776 | self.cxx.link_flags += ['-L' + self.use_system_cxx_lib] |
| 777 | if not self.is_windows: |
| 778 | self.cxx.link_flags += ['-Wl,-rpath,' + |
| 779 | self.use_system_cxx_lib] |
| 780 | if self.is_windows and self.link_shared: |
| 781 | self.add_path(self.cxx.compile_env, self.use_system_cxx_lib) |
Alexander Richardson | 9880456 | 2018-02-23 15:19:48 +0000 | [diff] [blame] | 782 | additional_flags = self.get_lit_conf('test_linker_flags') |
| 783 | if additional_flags: |
| 784 | self.cxx.link_flags += shlex.split(additional_flags) |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 785 | |
| 786 | def configure_link_flags_abi_library_path(self): |
| 787 | # Configure ABI library paths. |
| 788 | self.abi_library_root = self.get_lit_conf('abi_library_path') |
| 789 | if self.abi_library_root: |
| 790 | self.cxx.link_flags += ['-L' + self.abi_library_root] |
| 791 | if not self.is_windows: |
| 792 | self.cxx.link_flags += ['-Wl,-rpath,' + self.abi_library_root] |
| 793 | else: |
| 794 | self.add_path(self.exec_env, self.abi_library_root) |
| 795 | |
| 796 | def configure_link_flags_cxx_library(self): |
| 797 | libcxx_experimental = self.get_lit_bool('enable_experimental', default=False) |
| 798 | if libcxx_experimental: |
| 799 | self.config.available_features.add('c++experimental') |
| 800 | self.cxx.link_flags += ['-lc++experimental'] |
Eric Fiselier | a0866c5 | 2018-07-27 03:07:09 +0000 | [diff] [blame] | 801 | libcxx_fs = self.get_lit_bool('enable_filesystem', default=False) |
| 802 | if libcxx_fs: |
| 803 | self.config.available_features.add('c++fs') |
| 804 | self.cxx.link_flags += ['-lc++fs'] |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 805 | if self.link_shared: |
| 806 | self.cxx.link_flags += ['-lc++'] |
| 807 | else: |
| 808 | cxx_library_root = self.get_lit_conf('cxx_library_root') |
| 809 | if cxx_library_root: |
| 810 | libname = self.make_static_lib_name('c++') |
| 811 | abs_path = os.path.join(cxx_library_root, libname) |
| 812 | assert os.path.exists(abs_path) and \ |
| 813 | "static libc++ library does not exist" |
| 814 | self.cxx.link_flags += [abs_path] |
| 815 | else: |
| 816 | self.cxx.link_flags += ['-lc++'] |
| 817 | |
| 818 | def configure_link_flags_abi_library(self): |
| 819 | cxx_abi = self.get_lit_conf('cxx_abi', 'libcxxabi') |
| 820 | if cxx_abi == 'libstdc++': |
| 821 | self.cxx.link_flags += ['-lstdc++'] |
| 822 | elif cxx_abi == 'libsupc++': |
| 823 | self.cxx.link_flags += ['-lsupc++'] |
| 824 | elif cxx_abi == 'libcxxabi': |
| 825 | if self.target_info.allow_cxxabi_link(): |
| 826 | libcxxabi_shared = self.get_lit_bool('libcxxabi_shared', default=True) |
| 827 | if libcxxabi_shared: |
| 828 | self.cxx.link_flags += ['-lc++abi'] |
| 829 | else: |
| 830 | cxxabi_library_root = self.get_lit_conf('abi_library_path') |
| 831 | if cxxabi_library_root: |
| 832 | libname = self.make_static_lib_name('c++abi') |
| 833 | abs_path = os.path.join(cxxabi_library_root, libname) |
| 834 | self.cxx.link_flags += [abs_path] |
| 835 | else: |
| 836 | self.cxx.link_flags += ['-lc++abi'] |
| 837 | elif cxx_abi == 'libcxxrt': |
| 838 | self.cxx.link_flags += ['-lcxxrt'] |
| 839 | elif cxx_abi == 'vcruntime': |
| 840 | debug_suffix = 'd' if self.debug_build else '' |
| 841 | self.cxx.link_flags += ['-l%s%s' % (lib, debug_suffix) for lib in |
| 842 | ['vcruntime', 'ucrt', 'msvcrt']] |
| 843 | elif cxx_abi == 'none' or cxx_abi == 'default': |
| 844 | if self.is_windows: |
| 845 | debug_suffix = 'd' if self.debug_build else '' |
| 846 | self.cxx.link_flags += ['-lmsvcrt%s' % debug_suffix] |
| 847 | else: |
| 848 | self.lit_config.fatal( |
| 849 | 'C++ ABI setting %s unsupported for tests' % cxx_abi) |
| 850 | |
| 851 | def configure_extra_library_flags(self): |
| 852 | if self.get_lit_bool('cxx_ext_threads', default=False): |
| 853 | self.cxx.link_flags += ['-lc++external_threads'] |
| 854 | self.target_info.add_cxx_link_flags(self.cxx.link_flags) |
| 855 | |
| 856 | def configure_color_diagnostics(self): |
| 857 | use_color = self.get_lit_conf('color_diagnostics') |
| 858 | if use_color is None: |
| 859 | use_color = os.environ.get('LIBCXX_COLOR_DIAGNOSTICS') |
| 860 | if use_color is None: |
| 861 | return |
| 862 | if use_color != '': |
| 863 | self.lit_config.fatal('Invalid value for color_diagnostics "%s".' |
| 864 | % use_color) |
| 865 | color_flag = '-fdiagnostics-color=always' |
| 866 | # Check if the compiler supports the color diagnostics flag. Issue a |
| 867 | # warning if it does not since color diagnostics have been requested. |
| 868 | if not self.cxx.hasCompileFlag(color_flag): |
| 869 | self.lit_config.warning( |
| 870 | 'color diagnostics have been requested but are not supported ' |
| 871 | 'by the compiler') |
| 872 | else: |
| 873 | self.cxx.flags += [color_flag] |
| 874 | |
| 875 | def configure_debug_mode(self): |
| 876 | debug_level = self.get_lit_conf('debug_level', None) |
| 877 | if not debug_level: |
| 878 | return |
| 879 | if debug_level not in ['0', '1']: |
| 880 | self.lit_config.fatal('Invalid value for debug_level "%s".' |
| 881 | % debug_level) |
| 882 | self.cxx.compile_flags += ['-D_LIBCPP_DEBUG=%s' % debug_level] |
| 883 | |
| 884 | def configure_warnings(self): |
| 885 | # Turn on warnings by default for Clang based compilers when C++ >= 11 |
| 886 | default_enable_warnings = self.cxx.type in ['clang', 'apple-clang'] \ |
| 887 | and len(self.config.available_features.intersection( |
Eric Fiselier | 7e73ea8 | 2017-11-07 20:26:23 +0000 | [diff] [blame] | 888 | ['c++11', 'c++14', 'c++17', 'c++2a'])) != 0 |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 889 | enable_warnings = self.get_lit_bool('enable_warnings', |
| 890 | default_enable_warnings) |
| 891 | self.cxx.useWarnings(enable_warnings) |
| 892 | self.cxx.warning_flags += [ |
| 893 | '-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER', |
| 894 | '-Wall', '-Wextra', '-Werror' |
| 895 | ] |
| 896 | if self.cxx.hasWarningFlag('-Wuser-defined-warnings'): |
| 897 | self.cxx.warning_flags += ['-Wuser-defined-warnings'] |
| 898 | self.config.available_features.add('diagnose-if-support') |
| 899 | self.cxx.addWarningFlagIfSupported('-Wshadow') |
| 900 | self.cxx.addWarningFlagIfSupported('-Wno-unused-command-line-argument') |
| 901 | self.cxx.addWarningFlagIfSupported('-Wno-attributes') |
| 902 | self.cxx.addWarningFlagIfSupported('-Wno-pessimizing-move') |
| 903 | self.cxx.addWarningFlagIfSupported('-Wno-c++11-extensions') |
| 904 | self.cxx.addWarningFlagIfSupported('-Wno-user-defined-literals') |
| 905 | self.cxx.addWarningFlagIfSupported('-Wno-noexcept-type') |
Eric Fiselier | 58cb7c1 | 2017-07-05 22:40:58 +0000 | [diff] [blame] | 906 | self.cxx.addWarningFlagIfSupported('-Wno-aligned-allocation-unavailable') |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 907 | # These warnings should be enabled in order to support the MSVC |
| 908 | # team using the test suite; They enable the warnings below and |
| 909 | # expect the test suite to be clean. |
| 910 | self.cxx.addWarningFlagIfSupported('-Wsign-compare') |
| 911 | self.cxx.addWarningFlagIfSupported('-Wunused-variable') |
| 912 | self.cxx.addWarningFlagIfSupported('-Wunused-parameter') |
| 913 | self.cxx.addWarningFlagIfSupported('-Wunreachable-code') |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 914 | std = self.get_lit_conf('std', None) |
| 915 | if std in ['c++98', 'c++03']: |
| 916 | # The '#define static_assert' provided by libc++ in C++03 mode |
| 917 | # causes an unused local typedef whenever it is used. |
| 918 | self.cxx.addWarningFlagIfSupported('-Wno-unused-local-typedef') |
| 919 | |
| 920 | def configure_sanitizer(self): |
| 921 | san = self.get_lit_conf('use_sanitizer', '').strip() |
| 922 | if san: |
| 923 | self.target_info.add_sanitizer_features(san, self.config.available_features) |
| 924 | # Search for llvm-symbolizer along the compiler path first |
| 925 | # and then along the PATH env variable. |
| 926 | symbolizer_search_paths = os.environ.get('PATH', '') |
| 927 | cxx_path = libcxx.util.which(self.cxx.path) |
| 928 | if cxx_path is not None: |
| 929 | symbolizer_search_paths = ( |
| 930 | os.path.dirname(cxx_path) + |
| 931 | os.pathsep + symbolizer_search_paths) |
| 932 | llvm_symbolizer = libcxx.util.which('llvm-symbolizer', |
| 933 | symbolizer_search_paths) |
| 934 | |
| 935 | def add_ubsan(): |
| 936 | self.cxx.flags += ['-fsanitize=undefined', |
| 937 | '-fno-sanitize=vptr,function,float-divide-by-zero', |
| 938 | '-fno-sanitize-recover=all'] |
| 939 | self.exec_env['UBSAN_OPTIONS'] = 'print_stacktrace=1' |
| 940 | self.config.available_features.add('ubsan') |
| 941 | |
| 942 | # Setup the sanitizer compile flags |
| 943 | self.cxx.flags += ['-g', '-fno-omit-frame-pointer'] |
| 944 | if san == 'Address' or san == 'Address;Undefined' or san == 'Undefined;Address': |
| 945 | self.cxx.flags += ['-fsanitize=address'] |
| 946 | if llvm_symbolizer is not None: |
| 947 | self.exec_env['ASAN_SYMBOLIZER_PATH'] = llvm_symbolizer |
| 948 | # FIXME: Turn ODR violation back on after PR28391 is resolved |
| 949 | # https://bugs.llvm.org/show_bug.cgi?id=28391 |
| 950 | self.exec_env['ASAN_OPTIONS'] = 'detect_odr_violation=0' |
| 951 | self.config.available_features.add('asan') |
| 952 | self.config.available_features.add('sanitizer-new-delete') |
| 953 | self.cxx.compile_flags += ['-O1'] |
| 954 | if san == 'Address;Undefined' or san == 'Undefined;Address': |
| 955 | add_ubsan() |
| 956 | elif san == 'Memory' or san == 'MemoryWithOrigins': |
| 957 | self.cxx.flags += ['-fsanitize=memory'] |
| 958 | if san == 'MemoryWithOrigins': |
| 959 | self.cxx.compile_flags += [ |
| 960 | '-fsanitize-memory-track-origins'] |
| 961 | if llvm_symbolizer is not None: |
| 962 | self.exec_env['MSAN_SYMBOLIZER_PATH'] = llvm_symbolizer |
| 963 | self.config.available_features.add('msan') |
| 964 | self.config.available_features.add('sanitizer-new-delete') |
| 965 | self.cxx.compile_flags += ['-O1'] |
| 966 | elif san == 'Undefined': |
| 967 | add_ubsan() |
| 968 | self.cxx.compile_flags += ['-O2'] |
| 969 | elif san == 'Thread': |
| 970 | self.cxx.flags += ['-fsanitize=thread'] |
| 971 | self.config.available_features.add('tsan') |
| 972 | self.config.available_features.add('sanitizer-new-delete') |
| 973 | else: |
| 974 | self.lit_config.fatal('unsupported value for ' |
| 975 | 'use_sanitizer: {0}'.format(san)) |
| 976 | san_lib = self.get_lit_conf('sanitizer_library') |
| 977 | if san_lib: |
| 978 | self.cxx.link_flags += [ |
| 979 | san_lib, '-Wl,-rpath,%s' % os.path.dirname(san_lib)] |
| 980 | |
| 981 | def configure_coverage(self): |
| 982 | self.generate_coverage = self.get_lit_bool('generate_coverage', False) |
| 983 | if self.generate_coverage: |
| 984 | self.cxx.flags += ['-g', '--coverage'] |
| 985 | self.cxx.compile_flags += ['-O0'] |
| 986 | |
Eric Fiselier | 737c3bf | 2017-05-25 04:36:24 +0000 | [diff] [blame] | 987 | def configure_coroutines(self): |
| 988 | if self.cxx.hasCompileFlag('-fcoroutines-ts'): |
Eric Fiselier | 5fe8797 | 2017-10-02 22:52:51 +0000 | [diff] [blame] | 989 | macros = self._dump_macros_verbose(flags=['-fcoroutines-ts']) |
Eric Fiselier | d3f919e | 2017-05-25 05:11:40 +0000 | [diff] [blame] | 990 | if '__cpp_coroutines' not in macros: |
| 991 | self.lit_config.warning('-fcoroutines-ts is supported but ' |
| 992 | '__cpp_coroutines is not defined') |
| 993 | # Consider coroutines supported only when the feature test macro |
| 994 | # reflects a recent value. |
Richard Smith | 5aa2780 | 2018-06-17 19:58:45 +0000 | [diff] [blame] | 995 | if intMacroValue(macros['__cpp_coroutines']) >= 201703: |
Eric Fiselier | d3f919e | 2017-05-25 05:11:40 +0000 | [diff] [blame] | 996 | self.config.available_features.add('fcoroutines-ts') |
Eric Fiselier | 737c3bf | 2017-05-25 04:36:24 +0000 | [diff] [blame] | 997 | |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 998 | def configure_modules(self): |
| 999 | modules_flags = ['-fmodules'] |
| 1000 | if platform.system() != 'Darwin': |
| 1001 | modules_flags += ['-Xclang', '-fmodules-local-submodule-visibility'] |
| 1002 | supports_modules = self.cxx.hasCompileFlag(modules_flags) |
Eric Fiselier | 954bf04 | 2017-06-15 02:54:15 +0000 | [diff] [blame] | 1003 | enable_modules = self.get_modules_enabled() |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 1004 | if enable_modules and not supports_modules: |
| 1005 | self.lit_config.fatal( |
| 1006 | '-fmodules is enabled but not supported by the compiler') |
| 1007 | if not supports_modules: |
| 1008 | return |
| 1009 | self.config.available_features.add('modules-support') |
| 1010 | module_cache = os.path.join(self.config.test_exec_root, |
| 1011 | 'modules.cache') |
| 1012 | module_cache = os.path.realpath(module_cache) |
| 1013 | if os.path.isdir(module_cache): |
| 1014 | shutil.rmtree(module_cache) |
| 1015 | os.makedirs(module_cache) |
| 1016 | self.cxx.modules_flags = modules_flags + \ |
| 1017 | ['-fmodules-cache-path=' + module_cache] |
| 1018 | if enable_modules: |
| 1019 | self.config.available_features.add('-fmodules') |
| 1020 | self.cxx.useModules() |
| 1021 | |
| 1022 | def configure_substitutions(self): |
| 1023 | sub = self.config.substitutions |
| 1024 | cxx_path = pipes.quote(self.cxx.path) |
| 1025 | # Configure compiler substitutions |
| 1026 | sub.append(('%cxx', cxx_path)) |
Eric Fiselier | b2e9337 | 2017-07-08 04:18:41 +0000 | [diff] [blame] | 1027 | sub.append(('%libcxx_src_root', self.libcxx_src_root)) |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 1028 | # Configure flags substitutions |
| 1029 | flags_str = ' '.join([pipes.quote(f) for f in self.cxx.flags]) |
| 1030 | compile_flags_str = ' '.join([pipes.quote(f) for f in self.cxx.compile_flags]) |
| 1031 | link_flags_str = ' '.join([pipes.quote(f) for f in self.cxx.link_flags]) |
| 1032 | all_flags = '%s %s %s' % (flags_str, compile_flags_str, link_flags_str) |
| 1033 | sub.append(('%flags', flags_str)) |
| 1034 | sub.append(('%compile_flags', compile_flags_str)) |
| 1035 | sub.append(('%link_flags', link_flags_str)) |
| 1036 | sub.append(('%all_flags', all_flags)) |
| 1037 | if self.cxx.isVerifySupported(): |
| 1038 | verify_str = ' ' + ' '.join(self.cxx.verify_flags) + ' ' |
| 1039 | sub.append(('%verify', verify_str)) |
| 1040 | # Add compile and link shortcuts |
| 1041 | compile_str = (cxx_path + ' -o %t.o %s -c ' + flags_str |
| 1042 | + ' ' + compile_flags_str) |
| 1043 | link_str = (cxx_path + ' -o %t.exe %t.o ' + flags_str + ' ' |
| 1044 | + link_flags_str) |
| 1045 | assert type(link_str) is str |
| 1046 | build_str = cxx_path + ' -o %t.exe %s ' + all_flags |
| 1047 | if self.cxx.use_modules: |
| 1048 | sub.append(('%compile_module', compile_str)) |
| 1049 | sub.append(('%build_module', build_str)) |
| 1050 | elif self.cxx.modules_flags is not None: |
| 1051 | modules_str = ' '.join(self.cxx.modules_flags) + ' ' |
| 1052 | sub.append(('%compile_module', compile_str + ' ' + modules_str)) |
| 1053 | sub.append(('%build_module', build_str + ' ' + modules_str)) |
| 1054 | sub.append(('%compile', compile_str)) |
| 1055 | sub.append(('%link', link_str)) |
| 1056 | sub.append(('%build', build_str)) |
| 1057 | # Configure exec prefix substitutions. |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 1058 | # Configure run env substitution. |
Eric Fiselier | 5fa184d | 2017-05-10 08:04:50 +0000 | [diff] [blame] | 1059 | sub.append(('%run', '%t.exe')) |
Ben Craig | 2a1cb9c | 2017-05-09 01:26:39 +0000 | [diff] [blame] | 1060 | # Configure not program substitutions |
| 1061 | not_py = os.path.join(self.libcxx_src_root, 'utils', 'not.py') |
| 1062 | not_str = '%s %s ' % (pipes.quote(sys.executable), pipes.quote(not_py)) |
| 1063 | sub.append(('not ', not_str)) |
| 1064 | |
| 1065 | def can_use_deployment(self): |
| 1066 | # Check if the host is on an Apple platform using clang. |
| 1067 | if not self.target_info.platform() == "darwin": |
| 1068 | return False |
| 1069 | if not self.target_info.is_host_macosx(): |
| 1070 | return False |
| 1071 | if not self.cxx.type.endswith('clang'): |
| 1072 | return False |
| 1073 | return True |
| 1074 | |
| 1075 | def configure_triple(self): |
| 1076 | # Get or infer the target triple. |
| 1077 | target_triple = self.get_lit_conf('target_triple') |
| 1078 | self.use_target = self.get_lit_bool('use_target', False) |
| 1079 | if self.use_target and target_triple: |
| 1080 | self.lit_config.warning('use_target is true but no triple is specified') |
| 1081 | |
| 1082 | # Use deployment if possible. |
| 1083 | self.use_deployment = not self.use_target and self.can_use_deployment() |
| 1084 | if self.use_deployment: |
| 1085 | return |
| 1086 | |
| 1087 | # Save the triple (and warn on Apple platforms). |
| 1088 | self.config.target_triple = target_triple |
| 1089 | if self.use_target and 'apple' in target_triple: |
| 1090 | self.lit_config.warning('consider using arch and platform instead' |
| 1091 | ' of target_triple on Apple platforms') |
| 1092 | |
| 1093 | # If no target triple was given, try to infer it from the compiler |
| 1094 | # under test. |
| 1095 | if not self.config.target_triple: |
| 1096 | target_triple = self.cxx.getTriple() |
| 1097 | # Drop sub-major version components from the triple, because the |
| 1098 | # current XFAIL handling expects exact matches for feature checks. |
| 1099 | # Example: x86_64-apple-darwin14.0.0 -> x86_64-apple-darwin14 |
| 1100 | # The 5th group handles triples greater than 3 parts |
| 1101 | # (ex x86_64-pc-linux-gnu). |
| 1102 | target_triple = re.sub(r'([^-]+)-([^-]+)-([^.]+)([^-]*)(.*)', |
| 1103 | r'\1-\2-\3\5', target_triple) |
| 1104 | # linux-gnu is needed in the triple to properly identify linuxes |
| 1105 | # that use GLIBC. Handle redhat and opensuse triples as special |
| 1106 | # cases and append the missing `-gnu` portion. |
| 1107 | if (target_triple.endswith('redhat-linux') or |
| 1108 | target_triple.endswith('suse-linux')): |
| 1109 | target_triple += '-gnu' |
| 1110 | self.config.target_triple = target_triple |
| 1111 | self.lit_config.note( |
| 1112 | "inferred target_triple as: %r" % self.config.target_triple) |
| 1113 | |
| 1114 | def configure_deployment(self): |
| 1115 | assert not self.use_deployment is None |
| 1116 | assert not self.use_target is None |
| 1117 | if not self.use_deployment: |
| 1118 | # Warn about ignored parameters. |
| 1119 | if self.get_lit_conf('arch'): |
| 1120 | self.lit_config.warning('ignoring arch, using target_triple') |
| 1121 | if self.get_lit_conf('platform'): |
| 1122 | self.lit_config.warning('ignoring platform, using target_triple') |
| 1123 | return |
| 1124 | |
| 1125 | assert not self.use_target |
| 1126 | assert self.target_info.is_host_macosx() |
| 1127 | |
| 1128 | # Always specify deployment explicitly on Apple platforms, since |
| 1129 | # otherwise a platform is picked up from the SDK. If the SDK version |
| 1130 | # doesn't match the system version, tests that use the system library |
| 1131 | # may fail spuriously. |
| 1132 | arch = self.get_lit_conf('arch') |
| 1133 | if not arch: |
| 1134 | arch = self.cxx.getTriple().split('-', 1)[0] |
| 1135 | self.lit_config.note("inferred arch as: %r" % arch) |
| 1136 | |
| 1137 | inferred_platform, name, version = self.target_info.get_platform() |
| 1138 | if inferred_platform: |
| 1139 | self.lit_config.note("inferred platform as: %r" % (name + version)) |
| 1140 | self.config.deployment = (arch, name, version) |
| 1141 | |
| 1142 | # Set the target triple for use by lit. |
| 1143 | self.config.target_triple = arch + '-apple-' + name + version |
| 1144 | self.lit_config.note( |
| 1145 | "computed target_triple as: %r" % self.config.target_triple) |
| 1146 | |
| 1147 | def configure_env(self): |
| 1148 | self.target_info.configure_env(self.exec_env) |
| 1149 | |
| 1150 | def add_path(self, dest_env, new_path): |
| 1151 | if 'PATH' not in dest_env: |
| 1152 | dest_env['PATH'] = new_path |
| 1153 | else: |
| 1154 | split_char = ';' if self.is_windows else ':' |
| 1155 | dest_env['PATH'] = '%s%s%s' % (new_path, split_char, |
| 1156 | dest_env['PATH']) |