forked from OSchip/llvm-project
77 lines
2.9 KiB
Python
77 lines
2.9 KiB
Python
# -*- Python -*-
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import os
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def get_required_attr(config, attr_name):
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attr_value = getattr(config, attr_name, None)
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if attr_value == None:
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lit_config.fatal(
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"No attribute %r in test configuration! You may need to run "
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"tests from your build directory or add this attribute "
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"to lit.site.cfg " % attr_name)
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return attr_value
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# Setup config name.
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config.name = 'UBSan-' + config.name_suffix
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# Setup source root.
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config.test_source_root = os.path.dirname(__file__)
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default_ubsan_opts = list(config.default_sanitizer_opts)
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# Choose between standalone and UBSan+ASan modes.
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ubsan_lit_test_mode = get_required_attr(config, 'ubsan_lit_test_mode')
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if ubsan_lit_test_mode == "Standalone":
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config.available_features.add("ubsan-standalone")
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clang_ubsan_cflags = []
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elif ubsan_lit_test_mode == "StandaloneStatic":
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config.available_features.add("ubsan-standalone-static")
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clang_ubsan_cflags = ['-static-libsan']
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elif ubsan_lit_test_mode == "AddressSanitizer":
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config.available_features.add("ubsan-asan")
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clang_ubsan_cflags = ["-fsanitize=address"]
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default_ubsan_opts += ['detect_leaks=0']
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elif ubsan_lit_test_mode == "MemorySanitizer":
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config.available_features.add("ubsan-msan")
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clang_ubsan_cflags = ["-fsanitize=memory"]
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elif ubsan_lit_test_mode == "ThreadSanitizer":
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config.available_features.add("ubsan-tsan")
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clang_ubsan_cflags = ["-fsanitize=thread"]
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else:
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lit_config.fatal("Unknown UBSan test mode: %r" % ubsan_lit_test_mode)
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# Platform-specific default for lit tests.
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if config.target_arch == 's390x':
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# On SystemZ we need -mbackchain to make the fast unwinder work.
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clang_ubsan_cflags.append("-mbackchain")
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default_ubsan_opts_str = ':'.join(default_ubsan_opts)
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if default_ubsan_opts_str:
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config.environment['UBSAN_OPTIONS'] = default_ubsan_opts_str
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default_ubsan_opts_str += ':'
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# Substitution to setup UBSAN_OPTIONS in portable way.
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config.substitutions.append(('%env_ubsan_opts=',
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'env UBSAN_OPTIONS=' + default_ubsan_opts_str))
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def build_invocation(compile_flags):
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return " " + " ".join([config.clang] + compile_flags) + " "
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target_cflags = [get_required_attr(config, "target_cflags")]
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clang_ubsan_cflags += target_cflags
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clang_ubsan_cxxflags = config.cxx_mode_flags + clang_ubsan_cflags
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# Define %clang and %clangxx substitutions to use in test RUN lines.
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config.substitutions.append( ("%clang ", build_invocation(clang_ubsan_cflags)) )
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config.substitutions.append( ("%clangxx ", build_invocation(clang_ubsan_cxxflags)) )
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config.substitutions.append( ("%gmlt ", " ".join(config.debug_info_flags) + " ") )
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# Default test suffixes.
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config.suffixes = ['.c', '.cc', '.cpp']
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# Check that the host supports UndefinedBehaviorSanitizer tests
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if config.host_os not in ['Linux', 'Darwin', 'FreeBSD', 'Windows', 'NetBSD', 'SunOS']:
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config.unsupported = True
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config.available_features.add('arch=' + config.target_arch)
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config.excludes = ['Inputs']
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