| # -*- Python -*- |
| |
| import os |
| |
| def get_required_attr(config, attr_name): |
| attr_value = getattr(config, attr_name, None) |
| if not attr_value: |
| lit.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 config name. |
| config.name = 'MemorySanitizer' |
| |
| # Setup source root. |
| config.test_source_root = os.path.dirname(__file__) |
| |
| def DisplayNoConfigMessage(): |
| lit.fatal("No site specific configuration available! " + |
| "Try running your test from the build tree or running " + |
| "make check-msan") |
| |
| # Figure out LLVM source root. |
| llvm_src_root = getattr(config, 'llvm_src_root', None) |
| if llvm_src_root is None: |
| # We probably haven't loaded the site-specific configuration: the user |
| # is likely trying to run a test file directly, and the site configuration |
| # wasn't created by the build system. |
| msan_site_cfg = lit.params.get('msan_site_config', None) |
| if (msan_site_cfg) and (os.path.exists(msan_site_cfg)): |
| lit.load_config(config, msan_site_cfg) |
| raise SystemExit |
| |
| # Try to guess the location of site-specific configuration using llvm-config |
| # util that can point where the build tree is. |
| llvm_config = lit.util.which("llvm-config", config.environment["PATH"]) |
| if not llvm_config: |
| DisplayNoConfigMessage() |
| |
| # Find out the presumed location of generated site config. |
| llvm_obj_root = lit.util.capture(["llvm-config", "--obj-root"]).strip() |
| msan_site_cfg = os.path.join(llvm_obj_root, "projects", "compiler-rt", |
| "lib", "msan", "lit_tests", "lit.site.cfg") |
| if (not msan_site_cfg) or (not os.path.exists(msan_site_cfg)): |
| DisplayNoConfigMessage() |
| |
| lit.load_config(config, msan_site_cfg) |
| raise SystemExit |
| |
| # Setup default compiler flags used with -fsanitize=memory option. |
| clang_msan_cflags = ["-fsanitize=memory", |
| "-mno-omit-leaf-frame-pointer", |
| "-fno-omit-frame-pointer", |
| "-fno-optimize-sibling-calls", |
| "-g"] |
| clang_msan_cxxflags = ["--driver-mode=g++ "] + clang_msan_cflags |
| config.substitutions.append( ("%clang_msan ", |
| " ".join([config.clang] + clang_msan_cflags) + |
| " ") ) |
| config.substitutions.append( ("%clangxx_msan ", |
| " ".join([config.clang] + clang_msan_cxxflags) + |
| " ") ) |
| |
| # Setup path to external LLVM symbolizer to run MemorySanitizer output tests. |
| config.environment['MSAN_SYMBOLIZER_PATH'] = config.llvm_symbolizer_path |
| |
| # Default test suffixes. |
| config.suffixes = ['.c', '.cc', '.cpp'] |
| |
| # MemorySanitizer tests are currently supported on Linux only. |
| if config.host_os not in ['Linux']: |
| config.unsupported = True |