| # -*- 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 = 'ThreadSanitizer' |
| |
| # 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-tsan") |
| |
| # 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. |
| tsan_site_cfg = lit.params.get('tsan_site_config', None) |
| if (tsan_site_cfg) and (os.path.exists(tsan_site_cfg)): |
| lit.load_config(config, tsan_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() |
| tsan_site_cfg = os.path.join(llvm_obj_root, "projects", "compiler-rt", |
| "lib", "tsan", "lit_tests", "lit.site.cfg") |
| if (not tsan_site_cfg) or (not os.path.exists(tsan_site_cfg)): |
| DisplayNoConfigMessage() |
| |
| lit.load_config(config, tsan_site_cfg) |
| raise SystemExit |
| |
| # Setup environment variables for running ThreadSanitizer. |
| tsan_options = "atexit_sleep_ms=0" |
| # Set path to external LLVM symbolizer to run ThreadSanitizer output tests. |
| tsan_options += " " + "external_symbolizer_path=" + config.llvm_symbolizer_path |
| |
| config.environment['TSAN_OPTIONS'] = tsan_options |
| |
| # Setup default compiler flags used with -fsanitize=thread option. |
| # FIXME: Review the set of required flags and check if it can be reduced. |
| clang_tsan_cflags = ("-fsanitize=thread " |
| + "-g " |
| + "-Wall " |
| + "-lpthread " |
| + "-ldl ") |
| clang_tsan_cxxflags = "--driver-mode=g++ " + clang_tsan_cflags |
| config.substitutions.append( ("%clangxx_tsan ", (" " + config.clang + " " + |
| clang_tsan_cxxflags + " ")) ) |
| config.substitutions.append( ("%clang_tsan ", (" " + config.clang + " " + |
| clang_tsan_cflags + " ")) ) |
| |
| # Define CHECK-%os to check for OS-dependent output. |
| config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os))) |
| |
| # Default test suffixes. |
| config.suffixes = ['.c', '.cc', '.cpp'] |
| |
| # ThreadSanitizer tests are currently supported on Linux only. |
| if config.host_os not in ['Linux']: |
| config.unsupported = True |