e3898a2187
Summary: Currently the test suite defaults to C++11 mode if no standard version is supplied to LIT using `--param=std=c++XX`. This patch changes that behavior so that the newest possible dialect is selected instead. I have already patched the C++11 bot to explicitly specify `--param=std=c++11`. I'm just putting this up for review to see if anybody objects to this idea. Reviewers: mclow.lists, jroelofs, danalbert Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D13331 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@249226 91177308-0d34-0410-b5e6-96231b3b80d8
744 lines
33 KiB
Python
744 lines
33 KiB
Python
import importlib
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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 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.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.cxx = 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.abi_library_root = None
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self.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 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 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_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_execute_external()
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self.configure_ccache()
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self.configure_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_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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self.lit_config.note('Using compile flags: %s'
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% self.cxx.compile_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.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.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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default = "libcxx.test.target_info.LocalTI"
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info_str = self.get_lit_conf('target_info', default)
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mod_path, _, info = info_str.rpartition('.')
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mod = importlib.import_module(mod_path)
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self.target_info = getattr(mod, info)()
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if info_str != default:
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self.lit_config.note("inferred target_info as: %r" % info_str)
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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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# 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:
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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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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)
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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.%s' % (
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cxx_type, maj_v, min_v))
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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.libcxx_obj_root = self.get_lit_conf('libcxx_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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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_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.hasCompileFlag(
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['-Xclang', '-verify-ignore-unexpected'])
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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_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 default to internal on Windows and
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# external elsewhere, as bash on Windows is usually very slow.
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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 = sys.platform == 'win32'
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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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# Figure out which of the required locales we support
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locales = {
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'Darwin': {
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'en_US.UTF-8': 'en_US.UTF-8',
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'cs_CZ.ISO8859-2': 'cs_CZ.ISO8859-2',
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'fr_FR.UTF-8': 'fr_FR.UTF-8',
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'fr_CA.ISO8859-1': 'fr_CA.ISO8859-1',
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'ru_RU.UTF-8': 'ru_RU.UTF-8',
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'zh_CN.UTF-8': 'zh_CN.UTF-8',
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},
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'FreeBSD': {
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'en_US.UTF-8': 'en_US.UTF-8',
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'cs_CZ.ISO8859-2': 'cs_CZ.ISO8859-2',
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'fr_FR.UTF-8': 'fr_FR.UTF-8',
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'fr_CA.ISO8859-1': 'fr_CA.ISO8859-1',
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'ru_RU.UTF-8': 'ru_RU.UTF-8',
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'zh_CN.UTF-8': 'zh_CN.UTF-8',
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},
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'Linux': {
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'en_US.UTF-8': 'en_US.UTF-8',
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'cs_CZ.ISO8859-2': 'cs_CZ.ISO-8859-2',
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'fr_FR.UTF-8': 'fr_FR.UTF-8',
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'fr_CA.ISO8859-1': 'fr_CA.ISO-8859-1',
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'ru_RU.UTF-8': 'ru_RU.UTF-8',
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'zh_CN.UTF-8': 'zh_CN.UTF-8',
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},
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'Windows': {
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'en_US.UTF-8': 'English_United States.1252',
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'cs_CZ.ISO8859-2': 'Czech_Czech Republic.1250',
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'fr_FR.UTF-8': 'French_France.1252',
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'fr_CA.ISO8859-1': 'French_Canada.1252',
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'ru_RU.UTF-8': 'Russian_Russia.1251',
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'zh_CN.UTF-8': 'Chinese_China.936',
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},
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}
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target_system = self.target_info.system()
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target_platform = self.target_info.platform()
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if target_system in locales:
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default_locale = locale.setlocale(locale.LC_ALL)
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for feature, loc in locales[target_system].items():
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try:
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locale.setlocale(locale.LC_ALL, loc)
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self.config.available_features.add(
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'locale.{0}'.format(feature))
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except locale.Error:
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self.lit_config.warning('The locale {0} is not supported by '
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'your platform. Some tests will be '
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'unsupported.'.format(loc))
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locale.setlocale(locale.LC_ALL, default_locale)
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else:
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# Warn that the user doesn't get any free XFAILs for locale issues
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self.lit_config.warning("No locales entry for target_system: %s" %
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target_system)
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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(
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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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# Some linux distributions have different locale data than others.
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# Insert the distributions name and name-version into the available
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# features to allow tests to XFAIL on them.
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if target_platform == 'linux':
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name = self.target_info.platform_name()
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ver = self.target_info.platform_ver()
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if name:
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self.config.available_features.add(name)
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if name and ver:
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self.config.available_features.add('%s-%s' % (name, ver))
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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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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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# 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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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)
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# Configure include paths
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self.cxx.compile_flags += ['-nostdinc++']
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self.configure_compile_flags_header_includes()
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if self.target_info.platform() == 'linux':
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self.cxx.compile_flags += ['-D__STDC_FORMAT_MACROS',
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'-D__STDC_LIMIT_MACROS',
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'-D__STDC_CONSTANT_MACROS']
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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_no_global_filesystem_namespace()
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self.configure_compile_flags_no_stdin()
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self.configure_compile_flags_no_stdout()
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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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# Configure threading features.
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enable_threads = self.get_lit_bool('enable_threads', True)
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enable_monotonic_clock = self.get_lit_bool('enable_monotonic_clock',
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True)
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if not enable_threads:
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self.configure_compile_flags_no_threads()
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if not enable_monotonic_clock:
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self.configure_compile_flags_no_monotonic_clock()
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elif not enable_monotonic_clock:
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self.lit_config.fatal('enable_monotonic_clock cannot be false when'
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' enable_threads is true.')
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self.configure_compile_flags_no_thread_unsafe_c_functions()
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# Use verbose output for better errors
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self.cxx.flags += ['-v']
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sysroot = self.get_lit_conf('sysroot')
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if sysroot:
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self.cxx.flags += ['--sysroot', sysroot]
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gcc_toolchain = self.get_lit_conf('gcc_toolchain')
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if gcc_toolchain:
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self.cxx.flags += ['-gcc-toolchain', gcc_toolchain]
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if self.use_target:
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self.cxx.flags += ['-target', self.config.target_triple]
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def configure_compile_flags_header_includes(self):
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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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self.cxx.compile_flags += ['-include', os.path.join(support_path, 'nasty_macros.hpp')]
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libcxx_headers = self.get_lit_conf(
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'libcxx_headers', os.path.join(self.libcxx_src_root, 'include'))
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if not os.path.isdir(libcxx_headers):
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self.lit_config.fatal("libcxx_headers='%s' is not a directory."
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% libcxx_headers)
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self.cxx.compile_flags += ['-I' + libcxx_headers]
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def configure_compile_flags_exceptions(self):
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enable_exceptions = self.get_lit_bool('enable_exceptions', True)
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if not enable_exceptions:
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self.config.available_features.add('libcpp-no-exceptions')
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self.cxx.compile_flags += ['-fno-exceptions']
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def configure_compile_flags_rtti(self):
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enable_rtti = self.get_lit_bool('enable_rtti', True)
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if not enable_rtti:
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self.config.available_features.add('libcpp-no-rtti')
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self.cxx.compile_flags += ['-fno-rtti', '-D_LIBCPP_NO_RTTI']
|
|
|
|
def configure_compile_flags_no_global_filesystem_namespace(self):
|
|
enable_global_filesystem_namespace = self.get_lit_bool(
|
|
'enable_global_filesystem_namespace', True)
|
|
if not enable_global_filesystem_namespace:
|
|
self.config.available_features.add(
|
|
'libcpp-has-no-global-filesystem-namespace')
|
|
self.cxx.compile_flags += [
|
|
'-D_LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE']
|
|
|
|
def configure_compile_flags_no_stdin(self):
|
|
enable_stdin = self.get_lit_bool('enable_stdin', True)
|
|
if not enable_stdin:
|
|
self.config.available_features.add('libcpp-has-no-stdin')
|
|
self.cxx.compile_flags += ['-D_LIBCPP_HAS_NO_STDIN']
|
|
|
|
def configure_compile_flags_no_stdout(self):
|
|
enable_stdout = self.get_lit_bool('enable_stdout', True)
|
|
if not enable_stdout:
|
|
self.config.available_features.add('libcpp-has-no-stdout')
|
|
self.cxx.compile_flags += ['-D_LIBCPP_HAS_NO_STDOUT']
|
|
|
|
def configure_compile_flags_no_threads(self):
|
|
self.cxx.compile_flags += ['-D_LIBCPP_HAS_NO_THREADS']
|
|
self.config.available_features.add('libcpp-has-no-threads')
|
|
|
|
def configure_compile_flags_no_thread_unsafe_c_functions(self):
|
|
enable_thread_unsafe_c_functions = self.get_lit_bool(
|
|
'enable_thread_unsafe_c_functions', True)
|
|
if not enable_thread_unsafe_c_functions:
|
|
self.cxx.compile_flags += [
|
|
'-D_LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS']
|
|
self.config.available_features.add(
|
|
'libcpp-has-no-thread-unsafe-c-functions')
|
|
|
|
def configure_compile_flags_no_monotonic_clock(self):
|
|
self.cxx.compile_flags += ['-D_LIBCPP_HAS_NO_MONOTONIC_CLOCK']
|
|
self.config.available_features.add('libcpp-has-no-monotonic-clock')
|
|
|
|
def configure_link_flags(self):
|
|
no_default_flags = self.get_lit_bool('no_default_flags', False)
|
|
if not no_default_flags:
|
|
self.cxx.link_flags += ['-nodefaultlibs']
|
|
|
|
# Configure library path
|
|
self.configure_link_flags_cxx_library_path()
|
|
self.configure_link_flags_abi_library_path()
|
|
|
|
# Configure libraries
|
|
self.configure_link_flags_cxx_library()
|
|
self.configure_link_flags_abi_library()
|
|
self.configure_extra_library_flags()
|
|
|
|
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):
|
|
libcxx_library = self.get_lit_conf('libcxx_library')
|
|
# Configure libc++ library paths.
|
|
if libcxx_library is not None:
|
|
# Check that the given value for libcxx_library is valid.
|
|
if not os.path.isfile(libcxx_library):
|
|
self.lit_config.fatal(
|
|
"libcxx_library='%s' is not a valid file." %
|
|
libcxx_library)
|
|
if self.use_system_cxx_lib:
|
|
self.lit_config.fatal(
|
|
"Conflicting options: 'libcxx_library' cannot be used "
|
|
"with 'use_system_cxx_lib=true'")
|
|
self.cxx.link_flags += ['-Wl,-rpath,' +
|
|
os.path.dirname(libcxx_library)]
|
|
elif not self.use_system_cxx_lib and self.cxx_library_root:
|
|
self.cxx.link_flags += ['-L' + self.cxx_library_root,
|
|
'-Wl,-rpath,' + self.cxx_library_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,
|
|
'-Wl,-rpath,' + self.abi_library_root]
|
|
|
|
def configure_link_flags_cxx_library(self):
|
|
libcxx_library = self.get_lit_conf('libcxx_library')
|
|
if libcxx_library:
|
|
self.cxx.link_flags += [libcxx_library]
|
|
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':
|
|
# Don't link libc++abi explicitly on OS X because the symbols
|
|
# should be available in libc++ directly.
|
|
if self.target_info.platform() != 'darwin':
|
|
self.cxx.link_flags += ['-lc++abi']
|
|
elif cxx_abi == 'libcxxrt':
|
|
self.cxx.link_flags += ['-lcxxrt']
|
|
elif cxx_abi == 'none':
|
|
pass
|
|
else:
|
|
self.lit_config.fatal(
|
|
'C++ ABI setting %s unsupported for tests' % cxx_abi)
|
|
|
|
def configure_extra_library_flags(self):
|
|
enable_threads = self.get_lit_bool('enable_threads', True)
|
|
llvm_unwinder = self.get_lit_bool('llvm_unwinder', False)
|
|
target_platform = self.target_info.platform()
|
|
if target_platform == 'darwin':
|
|
self.cxx.link_flags += ['-lSystem']
|
|
elif target_platform == 'linux':
|
|
if not llvm_unwinder:
|
|
self.cxx.link_flags += ['-lgcc_eh']
|
|
self.cxx.link_flags += ['-lc', '-lm']
|
|
if enable_threads:
|
|
self.cxx.link_flags += ['-lpthread']
|
|
if llvm_unwinder:
|
|
self.cxx.link_flags += ['-lunwind', '-ldl']
|
|
else:
|
|
self.cxx.link_flags += ['-lgcc_s']
|
|
elif target_platform.startswith('freebsd'):
|
|
self.cxx.link_flags += ['-lc', '-lm', '-lpthread', '-lgcc_s', '-lcxxrt']
|
|
else:
|
|
self.lit_config.fatal("unrecognized system: %r" % target_platform)
|
|
|
|
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):
|
|
enable_warnings = self.get_lit_bool('enable_warnings', False)
|
|
if enable_warnings:
|
|
self.cxx.compile_flags += [
|
|
'-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER',
|
|
'-Wall', '-Werror'
|
|
]
|
|
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')
|
|
# TODO(EricWF) Remove the unused warnings once the test suite
|
|
# compiles clean with them.
|
|
self.cxx.addWarningFlagIfSupported('-Wno-unused-local-typedef')
|
|
self.cxx.addWarningFlagIfSupported('-Wno-unused-variable')
|
|
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:
|
|
# 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)
|
|
# Setup the sanitizer compile flags
|
|
self.cxx.flags += ['-g', '-fno-omit-frame-pointer']
|
|
if self.target_info.platform() == 'linux':
|
|
# The libraries and their order are taken from the
|
|
# linkSanitizerRuntimeDeps function in
|
|
# clang/lib/Driver/Tools.cpp
|
|
self.cxx.link_flags += ['-lpthread', '-lrt', '-lm', '-ldl']
|
|
if san == 'Address':
|
|
self.cxx.flags += ['-fsanitize=address']
|
|
if llvm_symbolizer is not None:
|
|
self.env['ASAN_SYMBOLIZER_PATH'] = llvm_symbolizer
|
|
self.config.available_features.add('asan')
|
|
self.config.available_features.add('sanitizer-new-delete')
|
|
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.env['MSAN_SYMBOLIZER_PATH'] = llvm_symbolizer
|
|
self.config.available_features.add('msan')
|
|
self.config.available_features.add('sanitizer-new-delete')
|
|
elif san == 'Undefined':
|
|
self.cxx.flags += ['-fsanitize=undefined',
|
|
'-fno-sanitize=vptr,function',
|
|
'-fno-sanitize-recover']
|
|
self.cxx.compile_flags += ['-O3']
|
|
self.config.available_features.add('ubsan')
|
|
if self.target_info.platform() == 'darwin':
|
|
self.config.available_features.add('sanitizer-new-delete')
|
|
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_substitutions(self):
|
|
sub = self.config.substitutions
|
|
# Configure compiler substitions
|
|
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))
|
|
# 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
|
|
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.env) != 0 else ''
|
|
for k, v in self.env.items():
|
|
exec_env_str += ' %s=%s' % (k, v)
|
|
# Configure run env substitution.
|
|
exec_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 substitions
|
|
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 = bool(self.config.target_triple)
|
|
# If no target triple was given, try to infer it from the compiler
|
|
# under test.
|
|
if not self.use_target:
|
|
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):
|
|
if self.target_info.platform() == 'darwin':
|
|
library_paths = []
|
|
# Configure the library path for libc++
|
|
libcxx_library = self.get_lit_conf('libcxx_library')
|
|
if self.use_system_cxx_lib:
|
|
pass
|
|
elif libcxx_library:
|
|
library_paths += [os.path.dirname(libcxx_library)]
|
|
elif self.cxx_library_root:
|
|
library_paths += [self.cxx_library_root]
|
|
# Configure the abi library path
|
|
if self.abi_library_root:
|
|
library_paths += [self.abi_library_root]
|
|
if library_paths:
|
|
self.env['DYLD_LIBRARY_PATH'] = ':'.join(library_paths)
|