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