| # -*- Python -*- |
| |
| import os |
| |
| def get_required_attr(config, attr_name): |
| attr_value = getattr(config, attr_name, None) |
| if attr_value == None: |
| lit_config.fatal( |
| "No attribute %r in test configuration! You may need to run " |
| "tests from your build directory or add this attribute " |
| "to lit.site.cfg " % attr_name) |
| return attr_value |
| |
| # Setup source root. |
| config.test_source_root = os.path.dirname(__file__) |
| |
| # Choose between standalone and UBSan+ASan modes. |
| ubsan_lit_test_mode = get_required_attr(config, 'ubsan_lit_test_mode') |
| if ubsan_lit_test_mode == "Standalone": |
| config.name = 'UndefinedBehaviorSanitizer-Standalone' |
| config.available_features.add("ubsan-standalone") |
| clang_ubsan_cflags = [] |
| elif ubsan_lit_test_mode == "AddressSanitizer": |
| if config.host_os == 'Darwin': |
| # ubsan-asan doesn't yet work on Darwin, |
| # see http://llvm.org/bugs/show_bug.cgi?id=21112. |
| config.unsupported = True |
| config.name = 'UndefinedBehaviorSanitizer-AddressSanitizer' |
| config.available_features.add("ubsan-asan") |
| clang_ubsan_cflags = ["-fsanitize=address"] |
| config.environment['ASAN_OPTIONS'] = 'detect_leaks=0' |
| else: |
| lit_config.fatal("Unknown UBSan test mode: %r" % ubsan_lit_test_mode) |
| |
| def build_invocation(compile_flags): |
| return " " + " ".join([config.clang] + compile_flags) + " " |
| |
| target_cflags = [get_required_attr(config, "target_cflags")] |
| clang_ubsan_cflags += target_cflags |
| clang_ubsan_cxxflags = config.cxx_mode_flags + clang_ubsan_cflags |
| |
| # Define %clang and %clangxx substitutions to use in test RUN lines. |
| config.substitutions.append( ("%clang ", build_invocation(clang_ubsan_cflags)) ) |
| config.substitutions.append( ("%clangxx ", build_invocation(clang_ubsan_cxxflags)) ) |
| |
| # Default test suffixes. |
| config.suffixes = ['.c', '.cc', '.cpp'] |
| |
| # Check that the host supports UndefinedBehaviorSanitizer tests |
| if config.host_os not in ['Linux', 'Darwin', 'FreeBSD']: |
| config.unsupported = True |
| |
| # Allow tests to use REQUIRES=stable-runtime. For use when you cannot use XFAIL |
| # because the test hangs or fails on one configuration and not the other. |
| if config.target_arch.startswith('arm') == False: |
| config.available_features.add('stable-runtime') |