622 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			Python
		
	
	
	
			
		
		
	
	
			622 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			Python
		
	
	
	
| # -*- Python -*-
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| 
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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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| 
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| import lit.formats
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| import lit.util
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| 
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| # Get shlex.quote if available (added in 3.3), and fall back to pipes.quote if
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| # it's not available.
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| try:
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|   import shlex
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|   sh_quote = shlex.quote
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| except:
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|   import pipes
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|   sh_quote = pipes.quote
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| 
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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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| 
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| # Allow expanding substitutions that are based on other substitutions
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| config.recursiveExpansionLimit = 10
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| 
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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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| 
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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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| 
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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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| if config.memprof_shadow_scale != '':
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|   config.target_cflags += " -mllvm -memprof-mapping-scale=" + config.memprof_shadow_scale
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| 
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| config.environment = dict(os.environ)
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| 
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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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| 
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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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| 
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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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| 
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| config.available_features.add(config.host_os.lower())
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| 
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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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| 
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| config.available_features.add("host-byteorder-" + sys.byteorder + "-endian")
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| 
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| if config.have_zlib == "1":
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|   config.available_features.add("zlib")
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| 
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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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| 
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| if config.host_os == 'NetBSD':
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|   nb_commands_dir = os.path.join(config.compiler_rt_src_root,
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|                                  "test", "sanitizer_common", "netbsd_commands")
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|   config.netbsd_noaslr_prefix = ('sh ' +
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|                                  os.path.join(nb_commands_dir, 'run_noaslr.sh'))
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|   config.netbsd_nomprotect_prefix = ('sh ' +
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|                                      os.path.join(nb_commands_dir,
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|                                                   'run_nomprotect.sh'))
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|   config.substitutions.append( ('%run_nomprotect',
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|                                 config.netbsd_nomprotect_prefix) )
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| else:
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|   config.substitutions.append( ('%run_nomprotect', '%run') )
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| 
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| # Copied from libcxx's config.py
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| def get_lit_conf(name, default=None):
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|     # Allow overriding on the command line using --param=<name>=<val>
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|     val = lit_config.params.get(name, None)
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|     if val is None:
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|         val = getattr(config, name, None)
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|         if val is None:
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|             val = default
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|     return val
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| 
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| emulator = get_lit_conf('emulator', None)
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| 
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| def get_ios_commands_dir():
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|   return os.path.join(config.compiler_rt_src_root, "test", "sanitizer_common", "ios_commands")
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| 
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| # Allow tests to be executed on a simulator or remotely.
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| if emulator:
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|   config.substitutions.append( ('%run', 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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| 
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|   ios_or_iossim = "iossim" if config.apple_platform.endswith("sim") else "ios"
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| 
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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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| 
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|   ios_commands_dir = get_ios_commands_dir()
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| 
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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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| 
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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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| 
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|   try:
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|     prepare_output = subprocess.check_output([prepare_script, config.apple_platform, config.clang]).decode().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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| 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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| 
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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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| 
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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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| 
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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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| 
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| config.substitutions.append( ("%expect_crash ", config.expect_crash) )
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| if config.has_lld:
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|   config.available_features.add('lld-available')
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| 
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| if config.use_lld:
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|   config.available_features.add('lld')
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| 
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| if config.can_symbolize:
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|   config.available_features.add('can-symbolize')
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| 
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| if config.gwp_asan:
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|   config.available_features.add('gwp_asan')
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| 
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| lit.util.usePlatformSdkOnDarwin(config, lit_config)
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| 
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| min_macos_deployment_target_substitutions = [
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|   (10, 11),
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|   (10, 12),
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| ]
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| # TLS requires watchOS 3+
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| config.substitutions.append( ('%darwin_min_target_with_tls_support', '%min_macos_deployment_target=10.12') )
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| 
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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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|                                           universal_newlines=True)
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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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|   except subprocess.CalledProcessError:
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|     pass
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| 
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|   config.darwin_osx_version = osx_version
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| 
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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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| 
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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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| 
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|   def get_macos_aligned_version(macos_vers):
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|     platform = config.apple_platform
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|     if platform == 'osx':
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|       return macos_vers
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| 
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|     macos_major, macos_minor = macos_vers
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|     assert macos_major >= 10
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| 
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|     if macos_major == 10:  # macOS 10.x
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|       major = macos_minor
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|       minor = 0
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|     else:                  # macOS 11+
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|       major = macos_major + 5
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|       minor = macos_minor
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| 
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|     assert major >= 11
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| 
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|     if platform.startswith('ios') or platform.startswith('tvos'):
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|       major -= 2
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|     elif platform.startswith('watch'):
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|       major -= 9
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|     else:
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|       lit_config.fatal("Unsupported apple platform '{}'".format(platform))
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| 
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|     return (major, minor)
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| 
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|   for vers in min_macos_deployment_target_substitutions:
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|     flag = config.apple_platform_min_deployment_target_flag
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|     major, minor = get_macos_aligned_version(vers)
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|     config.substitutions.append( ('%%min_macos_deployment_target=%s.%s' % vers, '{}={}.{}'.format(flag, major, minor)) )
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| else:
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|   for vers in min_macos_deployment_target_substitutions:
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|     config.substitutions.append( ('%%min_macos_deployment_target=%s.%s' % vers, '') )
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| 
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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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| 
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|   adb = os.environ.get('ADB', 'adb')
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| 
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|   # These are needed for tests to upload/download temp files, such as
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|   # suppression-files, to device.
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|   config.substitutions.append( ('%device_rundir', "/data/local/tmp/Output") )
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|   config.substitutions.append( ('%push_to_device', "%s -s '%s' push " % (adb, env['ANDROID_SERIAL']) ) )
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|   config.substitutions.append( ('%pull_from_device', "%s -s '%s' pull " % (adb, env['ANDROID_SERIAL']) ) )
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|   config.substitutions.append( ('%adb_shell ', "%s -s '%s' shell " % (adb, env['ANDROID_SERIAL']) ) )
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|   config.substitutions.append( ('%device_rm', "%s -s '%s' shell 'rm ' " % (adb, env['ANDROID_SERIAL']) ) )
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| 
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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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|     android_api_codename = subprocess.check_output([adb, "shell", "getprop", "ro.build.version.codename"], env=env).rstrip().decode("utf-8")
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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:
 | |
|     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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|   android_api_level = min(android_api_level, int(config.android_api_level))
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|   for required in [26, 28, 30]:
 | |
|     if android_api_level >= required:
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|       config.available_features.add('android-%s' % required)
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|   # FIXME: Replace with appropriate version when availible.
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|   if android_api_level > 30 or (android_api_level == 30 and android_api_codename == 'S'):
 | |
|     config.available_features.add('android-thread-properties-api')
 | |
| 
 | |
|   # 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)
 | |
|   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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| else:
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|   config.substitutions.append( ('%device_rundir', "") )
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|   config.substitutions.append( ('%push_to_device', "echo ") )
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|   config.substitutions.append( ('%pull_from_device', "echo ") )
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|   config.substitutions.append( ('%adb_shell', "echo ") )
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| 
 | |
| if config.host_os == 'Linux':
 | |
|   # 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/musl
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|   ldd_ver_cmd = subprocess.Popen(['ldd', '--version'],
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|                                  stdout=subprocess.PIPE,
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|                                  stderr=subprocess.DEVNULL,
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|                                  env={'LANG': 'C'})
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|   sout, _ = ldd_ver_cmd.communicate()
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|   ver_lines = sout.splitlines()
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|   if not config.android and len(ver_lines) and ver_lines[0].startswith(b"ldd "):
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|     from distutils.version import LooseVersion
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|     ver = LooseVersion(ver_lines[0].split()[-1].decode())
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|     for required in ["2.27", "2.30"]:
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|       if ver >= LooseVersion(required):
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|         config.available_features.add("glibc-" + required)
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| 
 | |
| sancovcc_path = os.path.join(config.llvm_tools_dir, "sancov")
 | |
| if os.path.exists(sancovcc_path):
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|   config.available_features.add("has_sancovcc")
 | |
|   config.substitutions.append( ("%sancovcc ", sancovcc_path) )
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| 
 | |
| def is_darwin_lto_supported():
 | |
|   return os.path.exists(os.path.join(config.llvm_shlib_dir, 'libLTO.dylib'))
 | |
| 
 | |
| def is_binutils_lto_supported():
 | |
|   if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold.so')):
 | |
|     return False
 | |
| 
 | |
|   # We require both ld.bfd and ld.gold exist and support plugins. They are in
 | |
|   # the same repository 'binutils-gdb' and usually built together.
 | |
|   for exe in (config.gnu_ld_executable, config.gold_executable):
 | |
|     ld_cmd = subprocess.Popen([exe, '--help'], stdout=subprocess.PIPE, env={'LANG': 'C'})
 | |
|     ld_out = ld_cmd.stdout.read().decode()
 | |
|     ld_cmd.wait()
 | |
|     if not '-plugin' in ld_out:
 | |
|       return False
 | |
| 
 | |
|   return True
 | |
| 
 | |
| def is_windows_lto_supported():
 | |
|   return os.path.exists(os.path.join(config.llvm_tools_dir, 'lld-link.exe'))
 | |
| 
 | |
| if config.host_os == 'Darwin' and is_darwin_lto_supported():
 | |
|   config.lto_supported = True
 | |
|   config.lto_launch = ["env", "DYLD_LIBRARY_PATH=" + config.llvm_shlib_dir]
 | |
|   config.lto_flags = []
 | |
| elif config.host_os in ['Linux', 'FreeBSD', 'NetBSD']:
 | |
|   config.lto_supported = False
 | |
|   if config.use_lld:
 | |
|     config.lto_supported = True
 | |
|   if is_binutils_lto_supported():
 | |
|     config.available_features.add('binutils_lto')
 | |
|     config.lto_supported = True
 | |
| 
 | |
|   if config.lto_supported:
 | |
|     config.lto_launch = []
 | |
|     if config.use_lld:
 | |
|       config.lto_flags = ["-fuse-ld=lld"]
 | |
|     else:
 | |
|       config.lto_flags = ["-fuse-ld=gold"]
 | |
| elif config.host_os == 'Windows' and is_windows_lto_supported():
 | |
|   config.lto_supported = True
 | |
|   config.lto_launch = []
 | |
|   config.lto_flags = ["-fuse-ld=lld"]
 | |
| else:
 | |
|   config.lto_supported = False
 | |
| 
 | |
| if config.lto_supported:
 | |
|   config.available_features.add('lto')
 | |
|   if config.use_thinlto:
 | |
|     config.available_features.add('thinlto')
 | |
|     config.lto_flags += ["-flto=thin"]
 | |
|   else:
 | |
|     config.lto_flags += ["-flto"]
 | |
|   if config.use_newpm:
 | |
|     config.lto_flags += ["-fexperimental-new-pass-manager"]
 | |
| 
 | |
| if config.have_rpc_xdr_h:
 | |
|   config.available_features.add('sunrpc')
 | |
| 
 | |
| # Ask llvm-config about assertion mode.
 | |
| try:
 | |
|   llvm_config_cmd = subprocess.Popen(
 | |
|       [os.path.join(config.llvm_tools_dir, 'llvm-config'), '--assertion-mode'],
 | |
|       stdout = subprocess.PIPE,
 | |
|       env=config.environment)
 | |
| except OSError as e:
 | |
|   print("Could not launch llvm-config in " + config.llvm_tools_dir)
 | |
|   print("    Failed with error #{0}: {1}".format(e.errno, e.strerror))
 | |
|   exit(42)
 | |
| 
 | |
| if re.search(r'ON', llvm_config_cmd.stdout.read().decode('ascii')):
 | |
|   config.available_features.add('asserts')
 | |
| llvm_config_cmd.wait()
 | |
| 
 | |
| # Sanitizer tests tend to be flaky on Windows due to PR24554, so add some
 | |
| # retries. We don't do this on otther platforms because it's slower.
 | |
| if platform.system() == 'Windows':
 | |
|   config.test_retry_attempts = 2
 | |
| 
 | |
| # No throttling on non-Darwin platforms.
 | |
| lit_config.parallelism_groups['shadow-memory'] = None
 | |
| 
 | |
| if platform.system() == 'Darwin':
 | |
|   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']
 | |
|   if lit.util.which('log'):
 | |
|     # Querying the log can only done by a privileged user so
 | |
|     # so check if we can query the log.
 | |
|     exit_code = -1
 | |
|     with open('/dev/null', 'r') as f:
 | |
|       # Run a `log show` command the should finish fairly quickly and produce very little output.
 | |
|       exit_code = subprocess.call(['log', 'show', '--last', '1m', '--predicate', '1 == 0'], stdout=f, stderr=f)
 | |
|     if exit_code == 0:
 | |
|       config.available_features.add('darwin_log_cmd')
 | |
|     else:
 | |
|       lit_config.warning('log command found but cannot queried')
 | |
|   else:
 | |
|     lit_config.warning('log command not found. Some tests will be skipped.')
 | |
| 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")
 | |
| 
 | |
| if config.memprof_shadow_scale:
 | |
|   config.available_features.add("memprof-shadow-scale-%s" % config.memprof_shadow_scale)
 | |
| else:
 | |
|   config.available_features.add("memprof-shadow-scale-3")
 | |
| 
 | |
| if config.expensive_checks:
 | |
|   config.available_features.add("expensive_checks")
 | |
| 
 | |
| # 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
 | |
| 
 | |
| # Append any extra flags passed in lit_config
 | |
| append_target_cflags = lit_config.params.get('append_target_cflags', None)
 | |
| if append_target_cflags:
 | |
|   lit_config.note('Appending to extra_cflags: "{}"'.format(append_target_cflags))
 | |
|   extra_cflags += [append_target_cflags]
 | |
| 
 | |
| config.clang = " " + " ".join(run_wrapper + [config.compile_wrapper, config.clang]) + " "
 | |
| config.target_cflags = " " + " ".join(target_cflags + extra_cflags) + " "
 | |
| 
 | |
| if config.host_os == 'Darwin':
 | |
|   config.substitutions.append((
 | |
|     "%get_pid_from_output", 
 | |
|     "{} {}/get_pid_from_output.py".format(
 | |
|       sh_quote(config.python_executable), 
 | |
|       sh_quote(get_ios_commands_dir())
 | |
|     ))
 | |
|   )
 | |
|   config.substitutions.append(
 | |
|     ("%print_crashreport_for_pid", 
 | |
|     "{} {}/print_crashreport_for_pid.py".format(
 | |
|       sh_quote(config.python_executable), 
 | |
|       sh_quote(get_ios_commands_dir())
 | |
|     ))
 | |
|   )
 |