forked from OSchip/llvm-project
498 lines
21 KiB
Python
498 lines
21 KiB
Python
# -*- Python -*-
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# Configuration file for 'lit' test runner.
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# This file contains common rules for various compiler-rt testsuites.
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# It is mostly copied from lit.cfg.py used by Clang.
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import os
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import platform
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import re
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import subprocess
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import json
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import lit.formats
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import lit.util
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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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# Setup test format.
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config.test_format = lit.formats.ShTest(execute_external)
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if execute_external:
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config.available_features.add('shell')
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compiler_id = getattr(config, 'compiler_id', None)
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if compiler_id == "Clang":
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if platform.system() != 'Windows':
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config.cxx_mode_flags = ["--driver-mode=g++"]
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else:
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config.cxx_mode_flags = []
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# We assume that sanitizers should provide good enough error
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# reports and stack traces even with minimal debug info.
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config.debug_info_flags = ["-gline-tables-only"]
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if platform.system() == 'Windows':
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# On Windows, use CodeView with column info instead of DWARF. Both VS and
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# windbg do not behave well when column info is enabled, but users have
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# requested it because it makes ASan reports more precise.
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config.debug_info_flags.append("-gcodeview")
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config.debug_info_flags.append("-gcolumn-info")
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elif compiler_id == 'GNU':
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config.cxx_mode_flags = ["-x c++"]
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config.debug_info_flags = ["-g"]
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else:
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lit_config.fatal("Unsupported compiler id: %r" % compiler_id)
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# Add compiler ID to the list of available features.
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config.available_features.add(compiler_id)
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# If needed, add cflag for shadow scale.
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if config.asan_shadow_scale != '':
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config.target_cflags += " -mllvm -asan-mapping-scale=" + config.asan_shadow_scale
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# BFD linker in 64-bit android toolchains fails to find libc++_shared.so, which
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# is a transitive shared library dependency (via asan runtime).
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if config.android:
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# Prepend the flag so that it can be overridden.
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config.target_cflags = "-pie -fuse-ld=gold " + config.target_cflags
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if config.android_ndk_version < 19:
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# With a new compiler and NDK < r19 this flag ends up meaning "link against
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# libc++", but NDK r19 makes this mean "link against the stub libstdc++ that
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# just contains a handful of ABI functions", which makes most C++ code fail
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# to link. In r19 and later we just use the default which is libc++.
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config.cxx_mode_flags.append('-stdlib=libstdc++')
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# Clear some environment variables that might affect Clang.
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possibly_dangerous_env_vars = ['ASAN_OPTIONS', 'DFSAN_OPTIONS', 'LSAN_OPTIONS',
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'MSAN_OPTIONS', 'UBSAN_OPTIONS',
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'COMPILER_PATH', 'RC_DEBUG_OPTIONS',
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'CINDEXTEST_PREAMBLE_FILE', 'LIBRARY_PATH',
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'CPATH', 'C_INCLUDE_PATH', 'CPLUS_INCLUDE_PATH',
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'OBJC_INCLUDE_PATH', 'OBJCPLUS_INCLUDE_PATH',
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'LIBCLANG_TIMING', 'LIBCLANG_OBJTRACKING',
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'LIBCLANG_LOGGING', 'LIBCLANG_BGPRIO_INDEX',
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'LIBCLANG_BGPRIO_EDIT', 'LIBCLANG_NOTHREADS',
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'LIBCLANG_RESOURCE_USAGE',
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'LIBCLANG_CODE_COMPLETION_LOGGING',
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'XRAY_OPTIONS']
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# Clang/Win32 may refer to %INCLUDE%. vsvarsall.bat sets it.
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if platform.system() != 'Windows':
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possibly_dangerous_env_vars.append('INCLUDE')
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for name in possibly_dangerous_env_vars:
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if name in config.environment:
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del config.environment[name]
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# Tweak PATH to include llvm tools dir.
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if (not config.llvm_tools_dir) or (not os.path.exists(config.llvm_tools_dir)):
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lit_config.fatal("Invalid llvm_tools_dir config attribute: %r" % config.llvm_tools_dir)
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path = os.path.pathsep.join((config.llvm_tools_dir, config.environment['PATH']))
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config.environment['PATH'] = path
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# Help MSVS link.exe find the standard libraries.
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# Make sure we only try to use it when targetting Windows.
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if platform.system() == 'Windows' and '-win' in config.target_triple:
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config.environment['LIB'] = os.environ['LIB']
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config.available_features.add(config.host_os.lower())
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if re.match(r'^x86_64.*-linux', config.target_triple):
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config.available_features.add("x86_64-linux")
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if config.have_zlib == "1":
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config.available_features.add("zlib")
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# Use ugly construction to explicitly prohibit "clang", "clang++" etc.
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# in RUN lines.
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config.substitutions.append(
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(' clang', """\n\n*** Do not use 'clangXXX' in tests,
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instead define '%clangXXX' substitution in lit config. ***\n\n""") )
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# Allow tests to be executed on a simulator or remotely.
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if config.emulator:
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config.substitutions.append( ('%run', config.emulator) )
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config.substitutions.append( ('%env ', "env ") )
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# TODO: Implement `%device_rm` to perform removal of files in the emulator.
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# For now just make it a no-op.
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lit_config.warning('%device_rm is not implemented')
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config.substitutions.append( ('%device_rm', 'echo ') )
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config.compile_wrapper = ""
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elif config.host_os == 'Darwin' and config.apple_platform != "osx":
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# Darwin tests can be targetting macOS, a device or a simulator. All devices
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# are declared as "ios", even for iOS derivatives (tvOS, watchOS). Similarly,
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# all simulators are "iossim". See the table below.
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#
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# =========================================================================
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# Target | Feature set
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# =========================================================================
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# macOS | darwin
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# iOS device | darwin, ios
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# iOS simulator | darwin, ios, iossim
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# tvOS device | darwin, ios, tvos
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# tvOS simulator | darwin, ios, iossim, tvos, tvossim
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# watchOS device | darwin, ios, watchos
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# watchOS simulator | darwin, ios, iossim, watchos, watchossim
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# =========================================================================
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ios_or_iossim = "iossim" if config.apple_platform.endswith("sim") else "ios"
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config.available_features.add('ios')
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device_id_env = "SANITIZER_" + ios_or_iossim.upper() + "_TEST_DEVICE_IDENTIFIER"
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if ios_or_iossim == "iossim":
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config.available_features.add('iossim')
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if device_id_env not in os.environ:
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lit_config.fatal(
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'{} must be set in the environment when running iossim tests'.format(
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device_id_env))
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if config.apple_platform != "ios" and config.apple_platform != "iossim":
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config.available_features.add(config.apple_platform)
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ios_commands_dir = os.path.join(config.compiler_rt_src_root, "test", "sanitizer_common", "ios_commands")
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run_wrapper = os.path.join(ios_commands_dir, ios_or_iossim + "_run.py")
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env_wrapper = os.path.join(ios_commands_dir, ios_or_iossim + "_env.py")
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compile_wrapper = os.path.join(ios_commands_dir, ios_or_iossim + "_compile.py")
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prepare_script = os.path.join(ios_commands_dir, ios_or_iossim + "_prepare.py")
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if device_id_env in os.environ:
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config.environment[device_id_env] = os.environ[device_id_env]
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config.substitutions.append(('%run', run_wrapper))
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config.substitutions.append(('%env ', env_wrapper + " "))
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# Current implementation of %device_rm uses the run_wrapper to do
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# the work.
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config.substitutions.append(('%device_rm', '{} rm '.format(run_wrapper)))
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config.compile_wrapper = compile_wrapper
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try:
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prepare_output = subprocess.check_output([prepare_script, config.apple_platform, config.clang]).strip()
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except subprocess.CalledProcessError as e:
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print("Command failed:")
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print(e.output)
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raise e
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if len(prepare_output) > 0: print(prepare_output)
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prepare_output_json = prepare_output.split("\n")[-1]
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prepare_output = json.loads(prepare_output_json)
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config.environment.update(prepare_output["env"])
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elif config.android:
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config.available_features.add('android')
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compile_wrapper = os.path.join(config.compiler_rt_src_root, "test", "sanitizer_common", "android_commands", "android_compile.py") + " "
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config.compile_wrapper = compile_wrapper
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config.substitutions.append( ('%run', "") )
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config.substitutions.append( ('%env ', "env ") )
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# TODO: Implement `%device_rm` to perform removal of files on a device. For
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# now just make it a no-op.
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lit_config.warning('%device_rm is not implemented')
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config.substitutions.append( ('%device_rm', 'echo ') )
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else:
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config.substitutions.append( ('%run', "") )
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config.substitutions.append( ('%env ', "env ") )
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# When running locally %device_rm is a no-op.
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config.substitutions.append( ('%device_rm', 'echo ') )
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config.compile_wrapper = ""
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# Define CHECK-%os to check for OS-dependent output.
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config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os)))
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# Define %arch to check for architecture-dependent output.
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config.substitutions.append( ('%arch', (config.host_arch)))
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if config.host_os == 'Windows':
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# FIXME: This isn't quite right. Specifically, it will succeed if the program
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# does not crash but exits with a non-zero exit code. We ought to merge
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# KillTheDoctor and not --crash to make the latter more useful and remove the
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# need for this substitution.
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config.expect_crash = "not KillTheDoctor "
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else:
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config.expect_crash = "not --crash "
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config.substitutions.append( ("%expect_crash ", config.expect_crash) )
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target_arch = getattr(config, 'target_arch', None)
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if target_arch:
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config.available_features.add(target_arch + '-target-arch')
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if target_arch in ['x86_64', 'i386']:
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config.available_features.add('x86-target-arch')
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config.available_features.add(target_arch + '-' + config.host_os.lower())
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compiler_rt_debug = getattr(config, 'compiler_rt_debug', False)
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if not compiler_rt_debug:
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config.available_features.add('compiler-rt-optimized')
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libdispatch = getattr(config, 'compiler_rt_intercept_libdispatch', False)
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if libdispatch:
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config.available_features.add('libdispatch')
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sanitizer_can_use_cxxabi = getattr(config, 'sanitizer_can_use_cxxabi', True)
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if sanitizer_can_use_cxxabi:
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config.available_features.add('cxxabi')
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if config.has_lld:
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config.available_features.add('lld-available')
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if config.use_lld:
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config.available_features.add('lld')
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if config.can_symbolize:
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config.available_features.add('can-symbolize')
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if config.gwp_asan:
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config.available_features.add('gwp_asan')
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lit.util.usePlatformSdkOnDarwin(config, lit_config)
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if config.host_os == 'Darwin':
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osx_version = (10, 0, 0)
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try:
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osx_version = subprocess.check_output(["sw_vers", "-productVersion"])
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osx_version = tuple(int(x) for x in osx_version.split('.'))
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if len(osx_version) == 2: osx_version = (osx_version[0], osx_version[1], 0)
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if osx_version >= (10, 11):
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config.available_features.add('osx-autointerception')
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config.available_features.add('osx-ld64-live_support')
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else:
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# The ASAN initialization-bug.cpp test should XFAIL on OS X systems
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# older than El Capitan. By marking the test as being unsupported with
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# this "feature", we can pass the test on newer OS X versions and other
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# platforms.
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config.available_features.add('osx-no-ld64-live_support')
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except:
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pass
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config.darwin_osx_version = osx_version
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# Detect x86_64h
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try:
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output = subprocess.check_output(["sysctl", "hw.cpusubtype"])
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output_re = re.match("^hw.cpusubtype: ([0-9]+)$", output)
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if output_re:
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cpu_subtype = int(output_re.group(1))
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if cpu_subtype == 8: # x86_64h
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config.available_features.add('x86_64h')
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except:
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pass
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config.substitutions.append( ("%macos_min_target_10_11", "-mmacosx-version-min=10.11") )
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isIOS = config.apple_platform != "osx"
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# rdar://problem/22207160
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config.substitutions.append( ("%darwin_min_target_with_full_runtime_arc_support",
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"-miphoneos-version-min=9.0" if isIOS else "-mmacosx-version-min=10.11") )
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# 32-bit iOS simulator is deprecated and removed in latest Xcode.
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if config.apple_platform == "iossim":
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if config.target_arch == "i386":
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config.unsupported = True
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else:
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config.substitutions.append( ("%macos_min_target_10_11", "") )
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config.substitutions.append( ("%darwin_min_target_with_full_runtime_arc_support", "") )
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if config.android:
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env = os.environ.copy()
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if config.android_serial:
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env['ANDROID_SERIAL'] = config.android_serial
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config.environment['ANDROID_SERIAL'] = config.android_serial
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adb = os.environ.get('ADB', 'adb')
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try:
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android_api_level_str = subprocess.check_output([adb, "shell", "getprop", "ro.build.version.sdk"], env=env).rstrip()
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except (subprocess.CalledProcessError, OSError):
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lit_config.fatal("Failed to read ro.build.version.sdk (using '%s' as adb)" % adb)
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try:
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android_api_level = int(android_api_level_str)
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except ValueError:
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lit_config.fatal("Failed to read ro.build.version.sdk (using '%s' as adb): got '%s'" % (adb, android_api_level_str))
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if android_api_level >= 26:
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config.available_features.add('android-26')
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if android_api_level >= 28:
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config.available_features.add('android-28')
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# Prepare the device.
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android_tmpdir = '/data/local/tmp/Output'
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subprocess.check_call([adb, "shell", "mkdir", "-p", android_tmpdir], env=env)
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for file in config.android_files_to_push:
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subprocess.check_call([adb, "push", file, android_tmpdir], env=env)
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if config.host_os == 'Linux':
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# detect whether we are using glibc, and which version
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# NB: 'ldd' is just one of the tools commonly installed as part of glibc
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ldd_ver_cmd = subprocess.Popen(['ldd', '--version'],
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stdout=subprocess.PIPE,
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env={'LANG': 'C'})
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sout, _ = ldd_ver_cmd.communicate()
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ver_line = sout.splitlines()[0]
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if ver_line.startswith(b"ldd "):
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from distutils.version import LooseVersion
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ver = LooseVersion(ver_line.split()[-1].decode())
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# 2.27 introduced some incompatibilities
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if ver >= LooseVersion("2.27"):
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config.available_features.add("glibc-2.27")
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sancovcc_path = os.path.join(config.llvm_tools_dir, "sancov")
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if os.path.exists(sancovcc_path):
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config.available_features.add("has_sancovcc")
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config.substitutions.append( ("%sancovcc ", sancovcc_path) )
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def is_darwin_lto_supported():
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return os.path.exists(os.path.join(config.llvm_shlib_dir, 'libLTO.dylib'))
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def is_linux_lto_supported():
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if config.use_lld:
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return True
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if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold.so')):
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return False
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ld_cmd = subprocess.Popen([config.gold_executable, '--help'], stdout = subprocess.PIPE, env={'LANG': 'C'})
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ld_out = ld_cmd.stdout.read().decode()
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ld_cmd.wait()
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if not '-plugin' in ld_out:
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return False
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return True
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def is_windows_lto_supported():
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return os.path.exists(os.path.join(config.llvm_tools_dir, 'lld-link.exe'))
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if config.host_os == 'Darwin' and is_darwin_lto_supported():
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config.lto_supported = True
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config.lto_launch = ["env", "DYLD_LIBRARY_PATH=" + config.llvm_shlib_dir]
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config.lto_flags = []
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elif config.host_os in ['Linux', 'FreeBSD', 'NetBSD'] and is_linux_lto_supported():
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config.lto_supported = True
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config.lto_launch = []
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if config.use_lld:
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config.lto_flags = ["-fuse-ld=lld"]
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else:
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config.lto_flags = ["-fuse-ld=gold"]
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elif config.host_os == 'Windows' and is_windows_lto_supported():
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config.lto_supported = True
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config.lto_launch = []
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config.lto_flags = ["-fuse-ld=lld"]
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else:
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config.lto_supported = False
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if config.lto_supported:
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config.available_features.add('lto')
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if config.use_thinlto:
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config.available_features.add('thinlto')
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config.lto_flags += ["-flto=thin"]
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else:
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config.lto_flags += ["-flto"]
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if config.use_newpm:
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config.lto_flags += ["-fexperimental-new-pass-manager"]
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if config.have_rpc_xdr_h:
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config.available_features.add('sunrpc')
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# Ask llvm-config about assertion mode.
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try:
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llvm_config_cmd = subprocess.Popen(
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[os.path.join(config.llvm_tools_dir, 'llvm-config'), '--assertion-mode'],
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stdout = subprocess.PIPE,
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env=config.environment)
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except OSError as e:
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print("Could not launch llvm-config in " + config.llvm_tools_dir)
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print(" Failed with error #{0}: {1}".format(e.errno, e.strerror))
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exit(42)
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if re.search(r'ON', llvm_config_cmd.stdout.read().decode('ascii')):
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config.available_features.add('asserts')
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llvm_config_cmd.wait()
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# Sanitizer tests tend to be flaky on Windows due to PR24554, so add some
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# retries. We don't do this on otther platforms because it's slower.
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if platform.system() == 'Windows':
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config.test_retry_attempts = 2
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# No throttling on non-Darwin platforms.
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lit_config.parallelism_groups['shadow-memory'] = None
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if platform.system() == 'Darwin':
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ios_device = config.apple_platform != 'osx' and not config.apple_platform.endswith('sim')
|
|
# Force sequential execution when running tests on iOS devices.
|
|
if ios_device:
|
|
lit_config.warning('Forcing sequential execution for iOS device tests')
|
|
lit_config.parallelism_groups['ios-device'] = 1
|
|
config.parallelism_group = 'ios-device'
|
|
|
|
# Only run up to 3 processes that require shadow memory simultaneously on
|
|
# 64-bit Darwin. Using more scales badly and hogs the system due to
|
|
# inefficient handling of large mmap'd regions (terabytes) by the kernel.
|
|
elif config.target_arch in ['x86_64', 'x86_64h']:
|
|
lit_config.warning('Throttling sanitizer tests that require shadow memory on Darwin 64bit')
|
|
lit_config.parallelism_groups['shadow-memory'] = 3
|
|
|
|
# Multiple substitutions are necessary to support multiple shared objects used
|
|
# at once.
|
|
# Note that substitutions with numbers have to be defined first to avoid
|
|
# being subsumed by substitutions with smaller postfix.
|
|
for postfix in ["2", "1", ""]:
|
|
if config.host_os == 'Darwin':
|
|
config.substitutions.append( ("%ld_flags_rpath_exe" + postfix, '-Wl,-rpath,@executable_path/ %dynamiclib' + postfix) )
|
|
config.substitutions.append( ("%ld_flags_rpath_so" + postfix, '-install_name @rpath/`basename %dynamiclib{}`'.format(postfix)) )
|
|
elif config.host_os in ('FreeBSD', 'NetBSD', 'OpenBSD'):
|
|
config.substitutions.append( ("%ld_flags_rpath_exe" + postfix, "-Wl,-z,origin -Wl,-rpath,\$ORIGIN -L%T -l%xdynamiclib_namespec" + postfix) )
|
|
config.substitutions.append( ("%ld_flags_rpath_so" + postfix, '') )
|
|
elif config.host_os == 'Linux':
|
|
config.substitutions.append( ("%ld_flags_rpath_exe" + postfix, "-Wl,-rpath,\$ORIGIN -L%T -l%xdynamiclib_namespec" + postfix) )
|
|
config.substitutions.append( ("%ld_flags_rpath_so" + postfix, '') )
|
|
elif config.host_os == 'SunOS':
|
|
config.substitutions.append( ("%ld_flags_rpath_exe" + postfix, "-Wl,-R\$ORIGIN -L%T -l%xdynamiclib_namespec" + postfix) )
|
|
config.substitutions.append( ("%ld_flags_rpath_so" + postfix, '') )
|
|
|
|
# Must be defined after the substitutions that use %dynamiclib.
|
|
config.substitutions.append( ("%dynamiclib" + postfix, '%T/%xdynamiclib_filename' + postfix) )
|
|
config.substitutions.append( ("%xdynamiclib_filename" + postfix, 'lib%xdynamiclib_namespec{}.so'.format(postfix)) )
|
|
config.substitutions.append( ("%xdynamiclib_namespec", '%basename_t.dynamic') )
|
|
|
|
# Provide a substituion that can be used to tell Clang to use a static libstdc++.
|
|
# The substitution expands to nothing on non Linux platforms.
|
|
# FIXME: This should check the target OS, not the host OS.
|
|
if config.host_os == 'Linux':
|
|
config.substitutions.append( ("%linux_static_libstdcplusplus", "-stdlib=libstdc++ -static-libstdc++") )
|
|
else:
|
|
config.substitutions.append( ("%linux_static_libstdcplusplus", "") )
|
|
|
|
config.default_sanitizer_opts = []
|
|
if config.host_os == 'Darwin':
|
|
# On Darwin, we default to `abort_on_error=1`, which would make tests run
|
|
# much slower. Let's override this and run lit tests with 'abort_on_error=0'.
|
|
config.default_sanitizer_opts += ['abort_on_error=0']
|
|
config.default_sanitizer_opts += ['log_to_syslog=0']
|
|
elif config.android:
|
|
config.default_sanitizer_opts += ['abort_on_error=0']
|
|
|
|
# Allow tests to use REQUIRES=stable-runtime. For use when you cannot use XFAIL
|
|
# because the test hangs or fails on one configuration and not the other.
|
|
if config.android or (config.target_arch not in ['arm', 'armhf', 'aarch64']):
|
|
config.available_features.add('stable-runtime')
|
|
|
|
if config.asan_shadow_scale:
|
|
config.available_features.add("shadow-scale-%s" % config.asan_shadow_scale)
|
|
else:
|
|
config.available_features.add("shadow-scale-3")
|
|
|
|
# Propagate the LLD/LTO into the clang config option, so nothing else is needed.
|
|
run_wrapper = []
|
|
target_cflags = [getattr(config, 'target_cflags', None)]
|
|
extra_cflags = []
|
|
|
|
if config.use_lto and config.lto_supported:
|
|
run_wrapper += config.lto_launch
|
|
extra_cflags += config.lto_flags
|
|
elif config.use_lto and (not config.lto_supported):
|
|
config.unsupported = True
|
|
|
|
if config.use_lld and config.has_lld and not config.use_lto:
|
|
extra_cflags += ["-fuse-ld=lld"]
|
|
elif config.use_lld and (not config.has_lld):
|
|
config.unsupported = True
|
|
|
|
config.clang = " " + " ".join(run_wrapper + [config.compile_wrapper, config.clang]) + " "
|
|
config.target_cflags = " " + " ".join(target_cflags + extra_cflags) + " "
|