afd7cc87ce
On Windows the runtime search path for DLL's is the same as PATH. This patch changes the test suite to add the libc++ build directory to the runtime PATH. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@291309 91177308-0d34-0410-b5e6-96231b3b80d8
924 lines
43 KiB
Python
924 lines
43 KiB
Python
#===----------------------------------------------------------------------===##
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#
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# The LLVM Compiler Infrastructure
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#
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# This file is dual licensed under the MIT and the University of Illinois Open
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# Source Licenses. See LICENSE.TXT for details.
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#
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#===----------------------------------------------------------------------===##
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import locale
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import os
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import platform
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import pkgutil
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import re
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import shlex
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import shutil
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import sys
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import lit.Test # pylint: disable=import-error,no-name-in-module
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import lit.util # pylint: disable=import-error,no-name-in-module
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from libcxx.test.format import LibcxxTestFormat
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from libcxx.compiler import CXXCompiler
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from libcxx.test.target_info import make_target_info
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from libcxx.test.executor import *
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from libcxx.test.tracing import *
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def loadSiteConfig(lit_config, config, param_name, env_name):
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# We haven't loaded the site specific configuration (the user is
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# probably trying to run on a test file directly, and either the site
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# configuration hasn't been created by the build system, or we are in an
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# out-of-tree build situation).
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site_cfg = lit_config.params.get(param_name,
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os.environ.get(env_name))
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if not site_cfg:
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lit_config.warning('No site specific configuration file found!'
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' Running the tests in the default configuration.')
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elif not os.path.isfile(site_cfg):
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lit_config.fatal(
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"Specified site configuration file does not exist: '%s'" %
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site_cfg)
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else:
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lit_config.note('using site specific configuration at %s' % site_cfg)
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ld_fn = lit_config.load_config
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# Null out the load_config function so that lit.site.cfg doesn't
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# recursively load a config even if it tries.
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# TODO: This is one hell of a hack. Fix it.
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def prevent_reload_fn(*args, **kwargs):
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pass
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lit_config.load_config = prevent_reload_fn
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ld_fn(config, site_cfg)
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lit_config.load_config = ld_fn
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class Configuration(object):
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# pylint: disable=redefined-outer-name
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def __init__(self, lit_config, config):
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self.lit_config = lit_config
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self.config = config
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self.is_windows = platform.system() == 'Windows'
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self.cxx = None
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self.cxx_is_clang_cl = None
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self.cxx_stdlib_under_test = None
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self.project_obj_root = None
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self.libcxx_src_root = None
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self.libcxx_obj_root = None
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self.cxx_library_root = None
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self.cxx_runtime_root = None
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self.abi_library_root = None
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self.link_shared = self.get_lit_bool('enable_shared', default=True)
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self.exec_env = {}
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self.use_target = False
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self.use_system_cxx_lib = False
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self.use_clang_verify = False
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self.long_tests = None
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self.execute_external = False
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def get_lit_conf(self, name, default=None):
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val = self.lit_config.params.get(name, None)
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if val is None:
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val = getattr(self.config, name, None)
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if val is None:
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val = default
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return val
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def get_lit_bool(self, name, default=None):
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conf = self.get_lit_conf(name)
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if conf is None:
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return default
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if isinstance(conf, bool):
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return conf
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if not isinstance(conf, str):
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raise TypeError('expected bool or string')
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if conf.lower() in ('1', 'true'):
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return True
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if conf.lower() in ('', '0', 'false'):
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return False
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self.lit_config.fatal(
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"parameter '{}' should be true or false".format(name))
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def make_static_lib_name(self, name):
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"""Return the full filename for the specified library name"""
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if self.is_windows:
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return name + '.lib'
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else:
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return 'lib' + name + '.a'
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def configure(self):
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self.configure_executor()
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self.configure_target_info()
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self.configure_cxx()
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self.configure_triple()
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self.configure_src_root()
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self.configure_obj_root()
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self.configure_cxx_stdlib_under_test()
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self.configure_cxx_library_root()
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self.configure_use_system_cxx_lib()
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self.configure_use_clang_verify()
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self.configure_use_thread_safety()
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self.configure_execute_external()
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self.configure_ccache()
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self.configure_compile_flags()
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self.configure_filesystem_compile_flags()
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self.configure_link_flags()
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self.configure_env()
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self.configure_color_diagnostics()
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self.configure_debug_mode()
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self.configure_warnings()
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self.configure_sanitizer()
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self.configure_coverage()
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self.configure_modules()
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self.configure_substitutions()
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self.configure_features()
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def print_config_info(self):
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# Print the final compile and link flags.
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self.lit_config.note('Using compiler: %s' % self.cxx.path)
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self.lit_config.note('Using flags: %s' % self.cxx.flags)
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if self.cxx.use_modules:
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self.lit_config.note('Using modules flags: %s' %
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self.cxx.modules_flags)
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self.lit_config.note('Using compile flags: %s'
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% self.cxx.compile_flags)
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if len(self.cxx.warning_flags):
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self.lit_config.note('Using warnings: %s' % self.cxx.warning_flags)
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self.lit_config.note('Using link flags: %s' % self.cxx.link_flags)
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# Print as list to prevent "set([...])" from being printed.
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self.lit_config.note('Using available_features: %s' %
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list(self.config.available_features))
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self.lit_config.note('Using environment: %r' % self.exec_env)
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def get_test_format(self):
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return LibcxxTestFormat(
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self.cxx,
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self.use_clang_verify,
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self.execute_external,
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self.executor,
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exec_env=self.exec_env)
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def configure_executor(self):
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exec_str = self.get_lit_conf('executor', "None")
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te = eval(exec_str)
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if te:
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self.lit_config.note("Using executor: %r" % exec_str)
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if self.lit_config.useValgrind:
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# We have no way of knowing where in the chain the
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# ValgrindExecutor is supposed to go. It is likely
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# that the user wants it at the end, but we have no
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# way of getting at that easily.
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selt.lit_config.fatal("Cannot infer how to create a Valgrind "
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" executor.")
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else:
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te = LocalExecutor()
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if self.lit_config.useValgrind:
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te = ValgrindExecutor(self.lit_config.valgrindArgs, te)
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self.executor = te
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def configure_target_info(self):
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self.target_info = make_target_info(self)
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def configure_cxx(self):
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# Gather various compiler parameters.
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cxx = self.get_lit_conf('cxx_under_test')
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self.cxx_is_clang_cl = cxx is not None and \
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os.path.basename(cxx) == 'clang-cl.exe'
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# If no specific cxx_under_test was given, attempt to infer it as
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# clang++.
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if cxx is None or self.cxx_is_clang_cl:
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clangxx = lit.util.which('clang++',
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self.config.environment['PATH'])
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if clangxx:
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cxx = clangxx
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self.lit_config.note(
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"inferred cxx_under_test as: %r" % cxx)
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elif self.cxx_is_clang_cl:
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self.lit_config.fatal('Failed to find clang++ substitution for'
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' clang-cl')
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if not cxx:
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self.lit_config.fatal('must specify user parameter cxx_under_test '
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'(e.g., --param=cxx_under_test=clang++)')
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self.cxx = CXXCompiler(cxx) if not self.cxx_is_clang_cl else \
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self._configure_clang_cl(cxx)
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cxx_type = self.cxx.type
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if cxx_type is not None:
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assert self.cxx.version is not None
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maj_v, min_v, _ = self.cxx.version
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self.config.available_features.add(cxx_type)
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self.config.available_features.add('%s-%s' % (cxx_type, maj_v))
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self.config.available_features.add('%s-%s.%s' % (
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cxx_type, maj_v, min_v))
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self.cxx.compile_env = dict(os.environ)
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# 'CCACHE_CPP2' prevents ccache from stripping comments while
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# preprocessing. This is required to prevent stripping of '-verify'
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# comments.
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self.cxx.compile_env['CCACHE_CPP2'] = '1'
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def _configure_clang_cl(self, clang_path):
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assert self.cxx_is_clang_cl
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# FIXME: don't hardcode the target
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flags = ['-fms-compatibility-version=19.00',
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'--target=i686-unknown-windows']
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compile_flags = []
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link_flags = ['-fuse-ld=lld']
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if 'INCLUDE' in os.environ:
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compile_flags += ['-isystem %s' % p.strip()
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for p in os.environ['INCLUDE'].split(';')
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if p.strip()]
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if 'LIB' in os.environ:
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link_flags += ['-L%s' % p.strip()
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for p in os.environ['LIB'].split(';') if p.strip()]
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return CXXCompiler(clang_path, flags=flags,
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compile_flags=compile_flags,
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link_flags=link_flags)
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def configure_src_root(self):
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self.libcxx_src_root = self.get_lit_conf(
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'libcxx_src_root', os.path.dirname(self.config.test_source_root))
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def configure_obj_root(self):
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self.project_obj_root = self.get_lit_conf('project_obj_root')
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self.libcxx_obj_root = self.get_lit_conf('libcxx_obj_root')
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if not self.libcxx_obj_root and self.project_obj_root is not None:
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possible_root = os.path.join(self.project_obj_root, 'projects', 'libcxx')
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if os.path.isdir(possible_root):
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self.libcxx_obj_root = possible_root
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else:
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self.libcxx_obj_root = self.project_obj_root
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def configure_cxx_library_root(self):
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self.cxx_library_root = self.get_lit_conf('cxx_library_root',
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self.libcxx_obj_root)
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self.cxx_runtime_root = self.get_lit_conf('cxx_runtime_root',
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self.cxx_library_root)
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def configure_use_system_cxx_lib(self):
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# This test suite supports testing against either the system library or
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# the locally built one; the former mode is useful for testing ABI
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# compatibility between the current headers and a shipping dynamic
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# library.
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self.use_system_cxx_lib = self.get_lit_bool('use_system_cxx_lib')
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if self.use_system_cxx_lib is None:
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# Default to testing against the locally built libc++ library.
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self.use_system_cxx_lib = False
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self.lit_config.note(
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"inferred use_system_cxx_lib as: %r" % self.use_system_cxx_lib)
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def configure_cxx_stdlib_under_test(self):
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self.cxx_stdlib_under_test = self.get_lit_conf(
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'cxx_stdlib_under_test', 'libc++')
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if self.cxx_stdlib_under_test not in \
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['libc++', 'libstdc++', 'cxx_default']:
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self.lit_config.fatal(
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'unsupported value for "cxx_stdlib_under_test": %s'
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% self.cxx_stdlib_under_test)
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self.config.available_features.add(self.cxx_stdlib_under_test)
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if self.cxx_stdlib_under_test == 'libstdc++':
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self.config.available_features.add('libstdc++')
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# Manually enable the experimental and filesystem tests for libstdc++
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# if the options aren't present.
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# FIXME this is a hack.
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if self.get_lit_conf('enable_experimental') is None:
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self.config.enable_experimental = 'true'
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if self.get_lit_conf('enable_filesystem') is None:
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self.config.enable_filesystem = 'true'
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def configure_use_clang_verify(self):
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'''If set, run clang with -verify on failing tests.'''
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self.use_clang_verify = self.get_lit_bool('use_clang_verify')
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if self.use_clang_verify is None:
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# NOTE: We do not test for the -verify flag directly because
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# -verify will always exit with non-zero on an empty file.
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self.use_clang_verify = self.cxx.isVerifySupported()
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if self.use_clang_verify:
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self.config.available_features.add('verify-support')
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self.lit_config.note(
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"inferred use_clang_verify as: %r" % self.use_clang_verify)
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def configure_use_thread_safety(self):
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'''If set, run clang with -verify on failing tests.'''
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has_thread_safety = self.cxx.hasCompileFlag('-Werror=thread-safety')
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if has_thread_safety:
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self.cxx.compile_flags += ['-Werror=thread-safety']
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self.config.available_features.add('thread-safety')
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self.lit_config.note("enabling thread-safety annotations")
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def configure_execute_external(self):
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# Choose between lit's internal shell pipeline runner and a real shell.
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# If LIT_USE_INTERNAL_SHELL is in the environment, we use that as the
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# default value. Otherwise we ask the target_info.
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use_lit_shell_default = os.environ.get('LIT_USE_INTERNAL_SHELL')
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if use_lit_shell_default is not None:
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use_lit_shell_default = use_lit_shell_default != '0'
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else:
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use_lit_shell_default = self.target_info.use_lit_shell_default()
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# Check for the command line parameter using the default value if it is
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# not present.
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use_lit_shell = self.get_lit_bool('use_lit_shell',
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use_lit_shell_default)
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self.execute_external = not use_lit_shell
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def configure_ccache(self):
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use_ccache_default = os.environ.get('LIBCXX_USE_CCACHE') is not None
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use_ccache = self.get_lit_bool('use_ccache', use_ccache_default)
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if use_ccache:
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self.cxx.use_ccache = True
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self.lit_config.note('enabling ccache')
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def configure_features(self):
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additional_features = self.get_lit_conf('additional_features')
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if additional_features:
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for f in additional_features.split(','):
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self.config.available_features.add(f.strip())
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self.target_info.add_locale_features(self.config.available_features)
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target_platform = self.target_info.platform()
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# Write an "available feature" that combines the triple when
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# use_system_cxx_lib is enabled. This is so that we can easily write
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# XFAIL markers for tests that are known to fail with versions of
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# libc++ as were shipped with a particular triple.
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if self.use_system_cxx_lib:
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self.config.available_features.add('with_system_cxx_lib')
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self.config.available_features.add(
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'with_system_cxx_lib=%s' % self.config.target_triple)
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# Insert the platform name into the available features as a lower case.
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self.config.available_features.add(target_platform)
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# Simulator testing can take a really long time for some of these tests
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# so add a feature check so we can REQUIRES: long_tests in them
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self.long_tests = self.get_lit_bool('long_tests')
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if self.long_tests is None:
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# Default to running long tests.
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self.long_tests = True
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self.lit_config.note(
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"inferred long_tests as: %r" % self.long_tests)
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if self.long_tests:
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self.config.available_features.add('long_tests')
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# Run a compile test for the -fsized-deallocation flag. This is needed
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# in test/std/language.support/support.dynamic/new.delete
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if self.cxx.hasCompileFlag('-fsized-deallocation'):
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self.config.available_features.add('fsized-deallocation')
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if self.cxx.hasCompileFlag('-faligned-allocation'):
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self.config.available_features.add('-faligned-allocation')
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else:
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# FIXME remove this once more than just clang-4.0 support
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# C++17 aligned allocation.
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self.config.available_features.add('no-aligned-allocation')
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if self.get_lit_bool('has_libatomic', False):
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self.config.available_features.add('libatomic')
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macros = self.cxx.dumpMacros()
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if '__cpp_if_constexpr' not in macros:
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self.config.available_features.add('libcpp-no-if-constexpr')
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if '__cpp_structured_bindings' not in macros:
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self.config.available_features.add('libcpp-no-structured-bindings')
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def configure_compile_flags(self):
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no_default_flags = self.get_lit_bool('no_default_flags', False)
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if not no_default_flags:
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self.configure_default_compile_flags()
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# This include is always needed so add so add it regardless of
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# 'no_default_flags'.
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support_path = os.path.join(self.libcxx_src_root, 'test/support')
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self.cxx.compile_flags += ['-I' + support_path]
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# Configure extra flags
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compile_flags_str = self.get_lit_conf('compile_flags', '')
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self.cxx.compile_flags += shlex.split(compile_flags_str)
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# FIXME: Can we remove this?
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if self.is_windows:
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self.cxx.compile_flags += ['-D_CRT_SECURE_NO_WARNINGS']
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def configure_default_compile_flags(self):
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# Try and get the std version from the command line. Fall back to
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# default given in lit.site.cfg is not present. If default is not
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# present then force c++11.
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std = self.get_lit_conf('std')
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if not std:
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# Choose the newest possible language dialect if none is given.
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possible_stds = ['c++1z', 'c++14', 'c++11', 'c++03']
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for s in possible_stds:
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if self.cxx.hasCompileFlag('-std=%s' % s):
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std = s
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self.lit_config.note(
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'inferred language dialect as: %s' % std)
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break
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if not std:
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self.lit_config.fatal(
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'Failed to infer a supported language dialect from one of %r'
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% possible_stds)
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self.cxx.compile_flags += ['-std={0}'.format(std)]
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self.config.available_features.add(std.replace('gnu++', 'c++'))
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# Configure include paths
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self.configure_compile_flags_header_includes()
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self.target_info.add_cxx_compile_flags(self.cxx.compile_flags)
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# Configure feature flags.
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self.configure_compile_flags_exceptions()
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self.configure_compile_flags_rtti()
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self.configure_compile_flags_abi_version()
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enable_32bit = self.get_lit_bool('enable_32bit', False)
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if enable_32bit:
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self.cxx.flags += ['-m32']
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# Use verbose output for better errors
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|
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]
|
|
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')
|
|
|
|
def configure_compile_flags_header_includes(self):
|
|
support_path = os.path.join(self.libcxx_src_root, 'test/support')
|
|
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')]
|
|
self.configure_config_site_header()
|
|
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
|
|
# 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 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 == '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)
|
|
|
|
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 == 'none' or cxx_abi == 'default':
|
|
if self.is_windows:
|
|
self.cxx.link_flags += ['-lmsvcrtd']
|
|
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)
|
|
if enable_warnings:
|
|
self.cxx.useWarnings(True)
|
|
self.cxx.warning_flags += [
|
|
'-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER',
|
|
'-Wall', '-Wextra', '-Werror'
|
|
]
|
|
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')
|
|
# 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')
|
|
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 = lit.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 = lit.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://llvm.org/bugs/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_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_default = supports_modules and \
|
|
os.environ.get('LIBCXX_USE_MODULES') is not None
|
|
enable_modules = self.get_lit_bool('enable_modules',
|
|
enable_modules_default)
|
|
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')
|
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module_cache = os.path.join(self.config.test_exec_root,
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'modules.cache')
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module_cache = os.path.realpath(module_cache)
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|
if os.path.isdir(module_cache):
|
|
shutil.rmtree(module_cache)
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|
os.makedirs(module_cache)
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|
self.cxx.modules_flags = modules_flags + \
|
|
['-fmodules-cache-path=' + module_cache]
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|
if enable_modules:
|
|
self.config.available_features.add('-fmodules')
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|
self.cxx.useModules()
|
|
|
|
def configure_substitutions(self):
|
|
sub = self.config.substitutions
|
|
# Configure compiler substitutions
|
|
sub.append(('%cxx', self.cxx.path))
|
|
# Configure flags substitutions
|
|
flags_str = ' '.join(self.cxx.flags)
|
|
compile_flags_str = ' '.join(self.cxx.compile_flags)
|
|
link_flags_str = ' '.join(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 = (self.cxx.path + ' -o %t.o %s -c ' + flags_str
|
|
+ ' ' + compile_flags_str)
|
|
link_str = (self.cxx.path + ' -o %t.exe %t.o ' + flags_str + ' '
|
|
+ link_flags_str)
|
|
assert type(link_str) is str
|
|
build_str = self.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.
|
|
exec_env_str = 'env ' if len(self.exec_env) != 0 else ''
|
|
for k, v in self.exec_env.items():
|
|
exec_env_str += ' %s=%s' % (k, v)
|
|
# Configure run env substitution.
|
|
exec_str = exec_env_str
|
|
if self.lit_config.useValgrind:
|
|
exec_str = ' '.join(self.lit_config.valgrindArgs) + exec_env_str
|
|
sub.append(('%exec', exec_str))
|
|
# Configure run shortcut
|
|
sub.append(('%run', exec_str + ' %t.exe'))
|
|
# Configure not program substitutions
|
|
not_py = os.path.join(self.libcxx_src_root, 'utils', 'not', 'not.py')
|
|
not_str = '%s %s ' % (sys.executable, not_py)
|
|
sub.append(('not ', not_str))
|
|
|
|
def configure_triple(self):
|
|
# Get or infer the target triple.
|
|
self.config.target_triple = self.get_lit_conf('target_triple')
|
|
self.use_target = self.get_lit_bool('use_target', False)
|
|
if self.use_target and self.config.target_triple:
|
|
self.lit_config.warning('use_target is true but no triple is specified')
|
|
# 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_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'])
|