| # -*- 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 = 'AddressSanitizer' |
| |
| # 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-asan") |
| |
| # 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. |
| asan_site_cfg = lit.params.get('asan_site_config', None) |
| if (asan_site_cfg) and (os.path.exists(asan_site_cfg)): |
| lit.load_config(config, asan_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() |
| asan_site_cfg = os.path.join(llvm_obj_root, "projects", "compiler-rt", |
| "lib", "asan", "lit_tests", "lit.site.cfg") |
| if (not asan_site_cfg) or (not os.path.exists(asan_site_cfg)): |
| DisplayNoConfigMessage() |
| |
| lit.load_config(config, asan_site_cfg) |
| raise SystemExit |
| |
| # Setup default compiler flags used with -fsanitize=address option. |
| # FIXME: Review the set of required flags and check if it can be reduced. |
| bits_cflag = " -m" + config.bits |
| clang_asan_cflags = (" -fsanitize=address" |
| + " -mno-omit-leaf-frame-pointer" |
| + " -fno-omit-frame-pointer" |
| + " -fno-optimize-sibling-calls" |
| + " -g" |
| + bits_cflag) |
| clang_asan_cxxflags = " --driver-mode=g++" + clang_asan_cflags |
| config.substitutions.append( ("%clang ", " " + config.clang + bits_cflag + " ")) |
| config.substitutions.append( ("%clangxx ", (" " + config.clang + |
| " --driver-mode=g++" + |
| bits_cflag + " ")) ) |
| config.substitutions.append( ("%clang_asan ", (" " + config.clang + " " + |
| clang_asan_cflags + " ")) ) |
| config.substitutions.append( ("%clangxx_asan ", (" " + config.clang + " " + |
| clang_asan_cxxflags + " ")) ) |
| |
| # Setup path to external LLVM symbolizer to run AddressSanitizer output tests. |
| config.environment['ASAN_SYMBOLIZER_PATH'] = config.llvm_symbolizer_path |
| |
| # Setup path to asan_symbolize.py script. |
| asan_source_dir = get_required_attr(config, "asan_source_dir") |
| asan_symbolize = os.path.join(asan_source_dir, "scripts", "asan_symbolize.py") |
| if not os.path.exists(asan_symbolize): |
| lit.fatal("Can't find script on path %r" % asan_symbolize) |
| config.substitutions.append( ("%asan_symbolize", " " + asan_symbolize + " ") ) |
| |
| # Define CHECK-%os to check for OS-dependent output. |
| config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os))) |
| |
| config.available_features.add("asan-" + config.bits + "-bits") |
| |
| # Default test suffixes. |
| config.suffixes = ['.c', '.cc', '.cpp'] |
| |
| # AddressSanitizer tests are currently supported on Linux and Darwin only. |
| if config.host_os not in ['Linux', 'Darwin']: |
| config.unsupported = True |