| # -*- Python -*- |
| |
| import os |
| import platform |
| import shlex |
| import subprocess |
| |
| import lit.formats |
| |
| # Choose between lit's internal shell pipeline runner and a real shell. If |
| # LIT_USE_INTERNAL_SHELL is in the environment, we use that as an override. |
| use_lit_shell = os.environ.get("LIT_USE_INTERNAL_SHELL") |
| if use_lit_shell: |
| # 0 is external, "" is default, and everything else is internal. |
| execute_external = use_lit_shell == "0" |
| else: |
| # Otherwise we default to internal on Windows and external elsewhere, as |
| # bash on Windows is usually very slow. |
| execute_external = not sys.platform in ["win32"] |
| |
| |
| 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.py " % attr_name |
| ) |
| return attr_value |
| |
| |
| def get_library_path(file): |
| cmd = subprocess.Popen( |
| [config.clang.strip(), "-print-file-name=%s" % file] |
| + shlex.split(config.target_cflags), |
| stdout=subprocess.PIPE, |
| env=config.environment, |
| universal_newlines=True, |
| ) |
| if not cmd.stdout: |
| lit_config.fatal("Couldn't find the library path for '%s'" % file) |
| dir = cmd.stdout.read().strip() |
| if sys.platform in ["win32"] and execute_external: |
| # Don't pass dosish path separator to msys bash.exe. |
| dir = dir.replace("\\", "/") |
| return dir |
| |
| |
| def get_libgcc_file_name(): |
| cmd = subprocess.Popen( |
| [config.clang.strip(), "-print-libgcc-file-name"] |
| + shlex.split(config.target_cflags), |
| stdout=subprocess.PIPE, |
| env=config.environment, |
| universal_newlines=True, |
| ) |
| if not cmd.stdout: |
| lit_config.fatal("Couldn't find the library path for '%s'" % file) |
| dir = cmd.stdout.read().strip() |
| if sys.platform in ["win32"] and execute_external: |
| # Don't pass dosish path separator to msys bash.exe. |
| dir = dir.replace("\\", "/") |
| return dir |
| |
| |
| # Setup config name. |
| config.name = "Builtins" + config.name_suffix |
| |
| # Platform-specific default Builtins_OPTIONS for lit tests. |
| default_builtins_opts = "" |
| |
| # Setup source root. |
| config.test_source_root = os.path.dirname(__file__) |
| |
| # Path to the static library |
| is_msvc = get_required_attr(config, "is_msvc") |
| if is_msvc: |
| base_lib = os.path.join( |
| config.compiler_rt_libdir, "clang_rt.builtins%s.lib " % config.target_suffix |
| ) |
| config.substitutions.append(("%librt ", base_lib)) |
| elif config.host_os == "Darwin": |
| base_lib = os.path.join(config.compiler_rt_libdir, "libclang_rt.osx.a ") |
| config.substitutions.append(("%librt ", base_lib + " -lSystem ")) |
| elif config.host_os == "Windows": |
| base_lib = os.path.join( |
| config.compiler_rt_libdir, "libclang_rt.builtins%s.a" % config.target_suffix |
| ) |
| if sys.platform in ["win32"] and execute_external: |
| # Don't pass dosish path separator to msys bash.exe. |
| base_lib = base_lib.replace("\\", "/") |
| config.substitutions.append( |
| ( |
| "%librt ", |
| base_lib |
| + " -lmingw32 -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 ", |
| ) |
| ) |
| else: |
| base_lib = os.path.join( |
| config.compiler_rt_libdir, "libclang_rt.builtins%s.a" % config.target_suffix |
| ) |
| if sys.platform in ["win32"] and execute_external: |
| # Don't pass dosish path separator to msys bash.exe. |
| base_lib = base_lib.replace("\\", "/") |
| config.substitutions.append(("%librt ", base_lib + " -lc -lm ")) |
| |
| builtins_build_crt = get_required_attr(config, "builtins_build_crt") |
| if builtins_build_crt: |
| base_obj = os.path.join( |
| config.compiler_rt_libdir, "clang_rt.%%s%s.o" % config.target_suffix |
| ) |
| if sys.platform in ["win32"] and execute_external: |
| # Don't pass dosish path separator to msys bash.exe. |
| base_obj = base_obj.replace("\\", "/") |
| |
| config.substitutions.append(("%crtbegin", base_obj % "crtbegin")) |
| config.substitutions.append(("%crtend", base_obj % "crtend")) |
| |
| config.substitutions.append(("%crt1", get_library_path("crt1.o"))) |
| config.substitutions.append(("%crti", get_library_path("crti.o"))) |
| config.substitutions.append(("%crtn", get_library_path("crtn.o"))) |
| |
| config.substitutions.append(("%libgcc", get_libgcc_file_name())) |
| |
| config.substitutions.append( |
| ("%libstdcxx", "-l" + config.sanitizer_cxx_lib.lstrip("lib")) |
| ) |
| |
| config.available_features.add("crt") |
| |
| builtins_source_dir = os.path.join( |
| get_required_attr(config, "compiler_rt_src_root"), "lib", "builtins" |
| ) |
| if sys.platform in ["win32"] and execute_external: |
| # Don't pass dosish path separator to msys bash.exe. |
| builtins_source_dir = builtins_source_dir.replace("\\", "/") |
| builtins_lit_source_dir = get_required_attr(config, "builtins_lit_source_dir") |
| |
| extra_link_flags = ["-nodefaultlibs"] |
| |
| target_cflags = [get_required_attr(config, "target_cflags")] |
| target_cflags += ["-fno-builtin", "-I", builtins_source_dir] |
| target_cflags += extra_link_flags |
| target_cxxflags = config.cxx_mode_flags + target_cflags |
| clang_builtins_static_cflags = [""] + config.debug_info_flags + target_cflags |
| clang_builtins_static_cxxflags = config.cxx_mode_flags + clang_builtins_static_cflags |
| |
| clang_builtins_cflags = clang_builtins_static_cflags |
| clang_builtins_cxxflags = clang_builtins_static_cxxflags |
| |
| # FIXME: Right now we don't compile the C99 complex builtins when using |
| # clang-cl. Fix that. |
| if not is_msvc: |
| config.available_features.add("c99-complex") |
| |
| builtins_is_msvc = get_required_attr(config, "builtins_is_msvc") |
| if not builtins_is_msvc: |
| config.available_features.add("int128") |
| |
| clang_wrapper = "" |
| |
| |
| def build_invocation(compile_flags): |
| return " " + " ".join([clang_wrapper, config.clang] + compile_flags) + " " |
| |
| |
| config.substitutions.append(("%clang ", build_invocation(target_cflags))) |
| config.substitutions.append(("%clangxx ", build_invocation(target_cxxflags))) |
| config.substitutions.append( |
| ("%clang_builtins ", build_invocation(clang_builtins_cflags)) |
| ) |
| config.substitutions.append( |
| ("%clangxx_builtins ", build_invocation(clang_builtins_cxxflags)) |
| ) |
| |
| # Default test suffixes. |
| config.suffixes = [".c", ".cpp"] |
| |
| if not config.emulator: |
| config.available_features.add("native-run") |
| |
| # Add features for available sources |
| builtins_source_features = config.builtins_lit_source_features.split(";") |
| # Sanity checks |
| if not builtins_source_features: |
| lit_config.fatal("builtins_source_features cannot be empty") |
| builtins_source_features_set = set() |
| builtins_source_feature_duplicates = [] |
| for builtin_source_feature in builtins_source_features: |
| if len(builtin_source_feature) == 0: |
| lit_config.fatal("builtins_source_feature cannot contain empty features") |
| if builtin_source_feature not in builtins_source_features_set: |
| builtins_source_features_set.add(builtin_source_feature) |
| else: |
| builtins_source_feature_duplicates.append(builtin_source_feature) |
| |
| if len(builtins_source_feature_duplicates) > 0: |
| lit_config.fatal( |
| "builtins_source_features contains duplicates: {}".format( |
| builtins_source_feature_duplicates |
| ) |
| ) |
| config.available_features.update(builtins_source_features) |