зеркало из https://github.com/microsoft/clang-1.git
262 строки
10 KiB
Python
262 строки
10 KiB
Python
# -*- Python -*-
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import os
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import platform
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import re
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import subprocess
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# Configuration file for the 'lit' test runner.
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# name: The name of this test suite.
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config.name = 'Clang'
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# Tweak PATH for Win32
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if platform.system() == 'Windows':
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# Seek sane tools in directories and set to $PATH.
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path = getattr(config, 'lit_tools_dir', None)
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path = lit.getToolsPath(path,
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config.environment['PATH'],
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['cmp.exe', 'grep.exe', 'sed.exe'])
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if path is not None:
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path = os.path.pathsep.join((path,
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config.environment['PATH']))
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config.environment['PATH'] = path
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# testFormat: The test format to use to interpret tests.
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#
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# For now we require '&&' between commands, until they get globally killed and
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# the test runner updated.
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execute_external = (platform.system() != 'Windows'
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or lit.getBashPath() not in [None, ""])
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config.test_format = lit.formats.ShTest(execute_external)
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# suffixes: A list of file extensions to treat as test files.
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config.suffixes = ['.c', '.cpp', '.m', '.mm', '.cu', '.ll', '.cl', '.s']
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# test_source_root: The root path where tests are located.
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config.test_source_root = os.path.dirname(__file__)
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# test_exec_root: The root path where tests should be run.
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clang_obj_root = getattr(config, 'clang_obj_root', None)
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if clang_obj_root is not None:
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config.test_exec_root = os.path.join(clang_obj_root, 'test')
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# Set llvm_{src,obj}_root for use by others.
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config.llvm_src_root = getattr(config, 'llvm_src_root', None)
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config.llvm_obj_root = getattr(config, 'llvm_obj_root', None)
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# Clear some environment variables that might affect Clang.
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#
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# This first set of vars are read by Clang, but shouldn't affect tests
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# that aren't specifically looking for these features, or are required
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# simply to run the tests at all.
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#
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# FIXME: Should we have a tool that enforces this?
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# safe_env_vars = ('TMPDIR', 'TEMP', 'TMP', 'USERPROFILE', 'PWD',
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# 'MACOSX_DEPLOYMENT_TARGET', 'IPHONEOS_DEPLOYMENT_TARGET',
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# 'IOS_SIMULATOR_DEPLOYMENT_TARGET',
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# 'VCINSTALLDIR', 'VC100COMNTOOLS', 'VC90COMNTOOLS',
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# 'VC80COMNTOOLS')
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possibly_dangerous_env_vars = ['COMPILER_PATH', 'RC_DEBUG_OPTIONS',
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'CINDEXTEST_PREAMBLE_FILE', 'LIBRARY_PATH',
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'CPATH', 'C_INCLUDE_PATH', 'CPLUS_INCLUDE_PATH',
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'OBJC_INCLUDE_PATH', 'OBJCPLUS_INCLUDE_PATH',
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'LIBCLANG_TIMING', 'LIBCLANG_OBJTRACKING',
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'LIBCLANG_LOGGING', 'LIBCLANG_BGPRIO_INDEX',
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'LIBCLANG_BGPRIO_EDIT', 'LIBCLANG_NOTHREADS',
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'LIBCLANG_RESOURCE_USAGE',
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'LIBCLANG_CODE_COMPLETION_LOGGING']
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# Clang/Win32 may refer to %INCLUDE%. vsvarsall.bat sets it.
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if platform.system() != 'Windows':
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possibly_dangerous_env_vars.append('INCLUDE')
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for name in possibly_dangerous_env_vars:
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if name in config.environment:
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del config.environment[name]
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# Tweak the PATH to include the tools dir and the scripts dir.
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if clang_obj_root is not None:
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llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
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if not llvm_tools_dir:
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lit.fatal('No LLVM tools dir set!')
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path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
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config.environment['PATH'] = path
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llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
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if not llvm_libs_dir:
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lit.fatal('No LLVM libs dir set!')
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path = os.path.pathsep.join((llvm_libs_dir,
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config.environment.get('LD_LIBRARY_PATH','')))
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config.environment['LD_LIBRARY_PATH'] = path
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###
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# Check that the object root is known.
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if config.test_exec_root is None:
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# Otherwise, 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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# Check for 'clang_site_config' user parameter, and use that if available.
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site_cfg = lit.params.get('clang_site_config', None)
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if site_cfg and os.path.exists(site_cfg):
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lit.load_config(config, site_cfg)
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raise SystemExit
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# Try to detect the situation where we are using an out-of-tree build by
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# looking for 'llvm-config'.
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#
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# FIXME: I debated (i.e., wrote and threw away) adding logic to
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# automagically generate the lit.site.cfg if we are in some kind of fresh
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# build situation. This means knowing how to invoke the build system though,
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# and I decided it was too much magic. We should solve this by just having
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# the .cfg files generated during the configuration step.
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llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
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if not llvm_config:
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lit.fatal('No site specific configuration available!')
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# Get the source and object roots.
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llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
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llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
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clang_src_root = os.path.join(llvm_src_root, "tools", "clang")
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clang_obj_root = os.path.join(llvm_obj_root, "tools", "clang")
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# Validate that we got a tree which points to here, using the standard
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# tools/clang layout.
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this_src_root = os.path.dirname(config.test_source_root)
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if os.path.realpath(clang_src_root) != os.path.realpath(this_src_root):
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lit.fatal('No site specific configuration available!')
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# Check that the site specific configuration exists.
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site_cfg = os.path.join(clang_obj_root, 'test', 'lit.site.cfg')
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if not os.path.exists(site_cfg):
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lit.fatal('No site specific configuration available! You may need to '
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'run "make test" in your Clang build directory.')
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# Okay, that worked. Notify the user of the automagic, and reconfigure.
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lit.note('using out-of-tree build at %r' % clang_obj_root)
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lit.load_config(config, site_cfg)
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raise SystemExit
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###
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# Discover the 'clang' and 'clangcc' to use.
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import os
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def inferClang(PATH):
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# Determine which clang to use.
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clang = os.getenv('CLANG')
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# If the user set clang in the environment, definitely use that and don't
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# try to validate.
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if clang:
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return clang
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# Otherwise look in the path.
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clang = lit.util.which('clang', PATH)
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if not clang:
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lit.fatal("couldn't find 'clang' program, try setting "
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"CLANG in your environment")
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return clang
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# When running under valgrind, we mangle '-vg' onto the end of the triple so we
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# can check it with XFAIL and XTARGET.
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if lit.useValgrind:
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config.target_triple += '-vg'
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config.clang = inferClang(config.environment['PATH']).replace('\\', '/')
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if not lit.quiet:
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lit.note('using clang: %r' % config.clang)
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# Note that when substituting %clang_cc1 also fill in the include directory of
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# the builtin headers. Those are part of even a freestanding environment, but
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# Clang relies on the driver to locate them.
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def getClangBuiltinIncludeDir(clang):
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# FIXME: Rather than just getting the version, we should have clang print
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# out its resource dir here in an easy to scrape form.
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cmd = subprocess.Popen([clang, '-print-file-name=include'],
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stdout=subprocess.PIPE)
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if not cmd.stdout:
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lit.fatal("Couldn't find the include dir for Clang ('%s')" % clang)
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return cmd.stdout.read().strip()
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config.substitutions.append( ('%clang_cc1', '%s -cc1 -internal-isystem %s'
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% (config.clang,
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getClangBuiltinIncludeDir(config.clang))) )
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config.substitutions.append( ('%clangxx', ' ' + config.clang +
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' -ccc-clang-cxx -ccc-cxx '))
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config.substitutions.append( ('%clang', ' ' + config.clang + ' ') )
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config.substitutions.append( ('%test_debuginfo', ' ' + config.llvm_src_root + '/utils/test_debuginfo.pl ') )
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# FIXME: Find nicer way to prohibit this.
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config.substitutions.append(
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(' clang ', """*** Do not use 'clang' in tests, use '%clang'. ***""") )
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config.substitutions.append(
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(' clang\+\+ ', """*** Do not use 'clang++' in tests, use '%clangxx'. ***"""))
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config.substitutions.append(
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(' clang-cc ',
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"""*** Do not use 'clang-cc' in tests, use '%clang_cc1'. ***""") )
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config.substitutions.append(
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(' clang -cc1 ',
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"""*** Do not use 'clang -cc1' in tests, use '%clang_cc1'. ***""") )
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config.substitutions.append(
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(' %clang-cc1 ',
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"""*** invalid substitution, use '%clang_cc1'. ***""") )
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###
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# Set available features we allow tests to conditionalize on.
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#
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# As of 2011.08, crash-recovery tests still do not pass on FreeBSD.
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if platform.system() not in ['FreeBSD']:
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config.available_features.add('crash-recovery')
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# Shell execution
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if platform.system() not in ['Windows'] or lit.getBashPath() != '':
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config.available_features.add('shell')
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# ANSI escape sequences in non-dump terminal
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if platform.system() not in ['Windows']:
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config.available_features.add('ansi-escape-sequences')
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# Registered Targets
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def get_llc_props(tool):
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set_of_targets = set()
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enable_assertions = False
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cmd = subprocess.Popen([tool, '-version'], stdout=subprocess.PIPE)
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# Parse the stdout to get the list of registered targets.
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parse_targets = False
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for line in cmd.stdout:
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if parse_targets:
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m = re.match( r'(.*) - ', line)
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if m is not None:
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set_of_targets.add(m.group(1).strip() + '-registered-target')
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else:
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break
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elif "Registered Targets:" in line:
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parse_targets = True
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if re.search(r'with assertions', line):
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enable_assertions = True
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return {"set_of_targets": set_of_targets,
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"enable_assertions": enable_assertions}
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llc_props = get_llc_props(os.path.join(llvm_tools_dir, 'llc'))
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if len(llc_props['set_of_targets']) > 0:
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config.available_features.update(llc_props['set_of_targets'])
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else:
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lit.fatal('No Targets Registered with the LLVM Tools!')
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if llc_props['enable_assertions']:
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config.available_features.add('asserts')
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