1# -*- Python -*- 2 3# Configuration file for 'lit' test runner. 4# This file contains common rules for various compiler-rt testsuites. 5# It is mostly copied from lit.cfg.py used by Clang. 6import os 7import platform 8import re 9import subprocess 10import json 11 12import lit.formats 13import lit.util 14 15# Choose between lit's internal shell pipeline runner and a real shell. If 16# LIT_USE_INTERNAL_SHELL is in the environment, we use that as an override. 17use_lit_shell = os.environ.get("LIT_USE_INTERNAL_SHELL") 18if use_lit_shell: 19 # 0 is external, "" is default, and everything else is internal. 20 execute_external = (use_lit_shell == "0") 21else: 22 # Otherwise we default to internal on Windows and external elsewhere, as 23 # bash on Windows is usually very slow. 24 execute_external = (not sys.platform in ['win32']) 25 26# Allow expanding substitutions that are based on other substitutions 27config.recursiveExpansionLimit = 10 28 29# Setup test format. 30config.test_format = lit.formats.ShTest(execute_external) 31if execute_external: 32 config.available_features.add('shell') 33 34compiler_id = getattr(config, 'compiler_id', None) 35if compiler_id == "Clang": 36 if platform.system() != 'Windows': 37 config.cxx_mode_flags = ["--driver-mode=g++"] 38 else: 39 config.cxx_mode_flags = [] 40 # We assume that sanitizers should provide good enough error 41 # reports and stack traces even with minimal debug info. 42 config.debug_info_flags = ["-gline-tables-only"] 43 if platform.system() == 'Windows': 44 # On Windows, use CodeView with column info instead of DWARF. Both VS and 45 # windbg do not behave well when column info is enabled, but users have 46 # requested it because it makes ASan reports more precise. 47 config.debug_info_flags.append("-gcodeview") 48 config.debug_info_flags.append("-gcolumn-info") 49elif compiler_id == 'GNU': 50 config.cxx_mode_flags = ["-x c++"] 51 config.debug_info_flags = ["-g"] 52else: 53 lit_config.fatal("Unsupported compiler id: %r" % compiler_id) 54# Add compiler ID to the list of available features. 55config.available_features.add(compiler_id) 56 57# If needed, add cflag for shadow scale. 58if config.asan_shadow_scale != '': 59 config.target_cflags += " -mllvm -asan-mapping-scale=" + config.asan_shadow_scale 60if config.memprof_shadow_scale != '': 61 config.target_cflags += " -mllvm -memprof-mapping-scale=" + config.memprof_shadow_scale 62 63config.environment = dict(os.environ) 64 65# Clear some environment variables that might affect Clang. 66possibly_dangerous_env_vars = ['ASAN_OPTIONS', 'DFSAN_OPTIONS', 'LSAN_OPTIONS', 67 'MSAN_OPTIONS', 'UBSAN_OPTIONS', 68 'COMPILER_PATH', 'RC_DEBUG_OPTIONS', 69 'CINDEXTEST_PREAMBLE_FILE', 'LIBRARY_PATH', 70 'CPATH', 'C_INCLUDE_PATH', 'CPLUS_INCLUDE_PATH', 71 'OBJC_INCLUDE_PATH', 'OBJCPLUS_INCLUDE_PATH', 72 'LIBCLANG_TIMING', 'LIBCLANG_OBJTRACKING', 73 'LIBCLANG_LOGGING', 'LIBCLANG_BGPRIO_INDEX', 74 'LIBCLANG_BGPRIO_EDIT', 'LIBCLANG_NOTHREADS', 75 'LIBCLANG_RESOURCE_USAGE', 76 'LIBCLANG_CODE_COMPLETION_LOGGING', 77 'XRAY_OPTIONS'] 78# Clang/Win32 may refer to %INCLUDE%. vsvarsall.bat sets it. 79if platform.system() != 'Windows': 80 possibly_dangerous_env_vars.append('INCLUDE') 81for name in possibly_dangerous_env_vars: 82 if name in config.environment: 83 del config.environment[name] 84 85# Tweak PATH to include llvm tools dir. 86if (not config.llvm_tools_dir) or (not os.path.exists(config.llvm_tools_dir)): 87 lit_config.fatal("Invalid llvm_tools_dir config attribute: %r" % config.llvm_tools_dir) 88path = os.path.pathsep.join((config.llvm_tools_dir, config.environment['PATH'])) 89config.environment['PATH'] = path 90 91# Help MSVS link.exe find the standard libraries. 92# Make sure we only try to use it when targetting Windows. 93if platform.system() == 'Windows' and '-win' in config.target_triple: 94 config.environment['LIB'] = os.environ['LIB'] 95 96config.available_features.add(config.host_os.lower()) 97 98if re.match(r'^x86_64.*-linux', config.target_triple): 99 config.available_features.add("x86_64-linux") 100 101config.available_features.add("host-byteorder-" + sys.byteorder + "-endian") 102 103if config.have_zlib == "1": 104 config.available_features.add("zlib") 105 106# Use ugly construction to explicitly prohibit "clang", "clang++" etc. 107# in RUN lines. 108config.substitutions.append( 109 (' clang', """\n\n*** Do not use 'clangXXX' in tests, 110 instead define '%clangXXX' substitution in lit config. ***\n\n""") ) 111 112if config.host_os == 'NetBSD': 113 nb_commands_dir = os.path.join(config.compiler_rt_src_root, 114 "test", "sanitizer_common", "netbsd_commands") 115 config.netbsd_noaslr_prefix = ('sh ' + 116 os.path.join(nb_commands_dir, 'run_noaslr.sh')) 117 config.netbsd_nomprotect_prefix = ('sh ' + 118 os.path.join(nb_commands_dir, 119 'run_nomprotect.sh')) 120 config.substitutions.append( ('%run_nomprotect', 121 config.netbsd_nomprotect_prefix) ) 122else: 123 config.substitutions.append( ('%run_nomprotect', '%run') ) 124 125# Copied from libcxx's config.py 126def get_lit_conf(name, default=None): 127 # Allow overriding on the command line using --param=<name>=<val> 128 val = lit_config.params.get(name, None) 129 if val is None: 130 val = getattr(config, name, None) 131 if val is None: 132 val = default 133 return val 134 135emulator = get_lit_conf('emulator', None) 136 137# Allow tests to be executed on a simulator or remotely. 138if emulator: 139 config.substitutions.append( ('%run', emulator) ) 140 config.substitutions.append( ('%env ', "env ") ) 141 # TODO: Implement `%device_rm` to perform removal of files in the emulator. 142 # For now just make it a no-op. 143 lit_config.warning('%device_rm is not implemented') 144 config.substitutions.append( ('%device_rm', 'echo ') ) 145 config.compile_wrapper = "" 146elif config.host_os == 'Darwin' and config.apple_platform != "osx": 147 # Darwin tests can be targetting macOS, a device or a simulator. All devices 148 # are declared as "ios", even for iOS derivatives (tvOS, watchOS). Similarly, 149 # all simulators are "iossim". See the table below. 150 # 151 # ========================================================================= 152 # Target | Feature set 153 # ========================================================================= 154 # macOS | darwin 155 # iOS device | darwin, ios 156 # iOS simulator | darwin, ios, iossim 157 # tvOS device | darwin, ios, tvos 158 # tvOS simulator | darwin, ios, iossim, tvos, tvossim 159 # watchOS device | darwin, ios, watchos 160 # watchOS simulator | darwin, ios, iossim, watchos, watchossim 161 # ========================================================================= 162 163 ios_or_iossim = "iossim" if config.apple_platform.endswith("sim") else "ios" 164 165 config.available_features.add('ios') 166 device_id_env = "SANITIZER_" + ios_or_iossim.upper() + "_TEST_DEVICE_IDENTIFIER" 167 if ios_or_iossim == "iossim": 168 config.available_features.add('iossim') 169 if device_id_env not in os.environ: 170 lit_config.fatal( 171 '{} must be set in the environment when running iossim tests'.format( 172 device_id_env)) 173 if config.apple_platform != "ios" and config.apple_platform != "iossim": 174 config.available_features.add(config.apple_platform) 175 176 ios_commands_dir = os.path.join(config.compiler_rt_src_root, "test", "sanitizer_common", "ios_commands") 177 178 run_wrapper = os.path.join(ios_commands_dir, ios_or_iossim + "_run.py") 179 env_wrapper = os.path.join(ios_commands_dir, ios_or_iossim + "_env.py") 180 compile_wrapper = os.path.join(ios_commands_dir, ios_or_iossim + "_compile.py") 181 prepare_script = os.path.join(ios_commands_dir, ios_or_iossim + "_prepare.py") 182 183 if device_id_env in os.environ: 184 config.environment[device_id_env] = os.environ[device_id_env] 185 config.substitutions.append(('%run', run_wrapper)) 186 config.substitutions.append(('%env ', env_wrapper + " ")) 187 # Current implementation of %device_rm uses the run_wrapper to do 188 # the work. 189 config.substitutions.append(('%device_rm', '{} rm '.format(run_wrapper))) 190 config.compile_wrapper = compile_wrapper 191 192 try: 193 prepare_output = subprocess.check_output([prepare_script, config.apple_platform, config.clang]).decode().strip() 194 except subprocess.CalledProcessError as e: 195 print("Command failed:") 196 print(e.output) 197 raise e 198 if len(prepare_output) > 0: print(prepare_output) 199 prepare_output_json = prepare_output.split("\n")[-1] 200 prepare_output = json.loads(prepare_output_json) 201 config.environment.update(prepare_output["env"]) 202elif config.android: 203 config.available_features.add('android') 204 compile_wrapper = os.path.join(config.compiler_rt_src_root, "test", "sanitizer_common", "android_commands", "android_compile.py") + " " 205 config.compile_wrapper = compile_wrapper 206 config.substitutions.append( ('%run', "") ) 207 config.substitutions.append( ('%env ', "env ") ) 208 # TODO: Implement `%device_rm` to perform removal of files on a device. For 209 # now just make it a no-op. 210 lit_config.warning('%device_rm is not implemented') 211 config.substitutions.append( ('%device_rm', 'echo ') ) 212else: 213 config.substitutions.append( ('%run', "") ) 214 config.substitutions.append( ('%env ', "env ") ) 215 # When running locally %device_rm is a no-op. 216 config.substitutions.append( ('%device_rm', 'echo ') ) 217 config.compile_wrapper = "" 218 219# Define CHECK-%os to check for OS-dependent output. 220config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os))) 221 222# Define %arch to check for architecture-dependent output. 223config.substitutions.append( ('%arch', (config.host_arch))) 224 225if config.host_os == 'Windows': 226 # FIXME: This isn't quite right. Specifically, it will succeed if the program 227 # does not crash but exits with a non-zero exit code. We ought to merge 228 # KillTheDoctor and not --crash to make the latter more useful and remove the 229 # need for this substitution. 230 config.expect_crash = "not KillTheDoctor " 231else: 232 config.expect_crash = "not --crash " 233 234config.substitutions.append( ("%expect_crash ", config.expect_crash) ) 235 236target_arch = getattr(config, 'target_arch', None) 237if target_arch: 238 config.available_features.add(target_arch + '-target-arch') 239 if target_arch in ['x86_64', 'i386']: 240 config.available_features.add('x86-target-arch') 241 config.available_features.add(target_arch + '-' + config.host_os.lower()) 242 243compiler_rt_debug = getattr(config, 'compiler_rt_debug', False) 244if not compiler_rt_debug: 245 config.available_features.add('compiler-rt-optimized') 246 247libdispatch = getattr(config, 'compiler_rt_intercept_libdispatch', False) 248if libdispatch: 249 config.available_features.add('libdispatch') 250 251sanitizer_can_use_cxxabi = getattr(config, 'sanitizer_can_use_cxxabi', True) 252if sanitizer_can_use_cxxabi: 253 config.available_features.add('cxxabi') 254 255if config.has_lld: 256 config.available_features.add('lld-available') 257 258if config.use_lld: 259 config.available_features.add('lld') 260 261if config.can_symbolize: 262 config.available_features.add('can-symbolize') 263 264if config.gwp_asan: 265 config.available_features.add('gwp_asan') 266 267lit.util.usePlatformSdkOnDarwin(config, lit_config) 268 269min_macos_deployment_target_substitutions = [ 270 (10, 11), 271 (10, 12), 272] 273# TLS requires watchOS 3+ 274config.substitutions.append( ('%darwin_min_target_with_tls_support', '%min_macos_deployment_target=10.12') ) 275 276if config.host_os == 'Darwin': 277 osx_version = (10, 0, 0) 278 try: 279 osx_version = subprocess.check_output(["sw_vers", "-productVersion"], 280 universal_newlines=True) 281 osx_version = tuple(int(x) for x in osx_version.split('.')) 282 if len(osx_version) == 2: osx_version = (osx_version[0], osx_version[1], 0) 283 if osx_version >= (10, 11): 284 config.available_features.add('osx-autointerception') 285 config.available_features.add('osx-ld64-live_support') 286 except subprocess.CalledProcessError: 287 pass 288 289 config.darwin_osx_version = osx_version 290 291 # Detect x86_64h 292 try: 293 output = subprocess.check_output(["sysctl", "hw.cpusubtype"]) 294 output_re = re.match("^hw.cpusubtype: ([0-9]+)$", output) 295 if output_re: 296 cpu_subtype = int(output_re.group(1)) 297 if cpu_subtype == 8: # x86_64h 298 config.available_features.add('x86_64h') 299 except: 300 pass 301 302 # 32-bit iOS simulator is deprecated and removed in latest Xcode. 303 if config.apple_platform == "iossim": 304 if config.target_arch == "i386": 305 config.unsupported = True 306 307 def get_macos_aligned_version(macos_vers): 308 platform = config.apple_platform 309 if platform == 'osx': 310 return macos_vers 311 312 macos_major, macos_minor = macos_vers 313 assert macos_major >= 10 314 315 if macos_major == 10: # macOS 10.x 316 major = macos_minor 317 minor = 0 318 else: # macOS 11+ 319 major = macos_major + 5 320 minor = macos_minor 321 322 assert major >= 11 323 324 if platform.startswith('ios') or platform.startswith('tvos'): 325 major -= 2 326 elif platform.startswith('watch'): 327 major -= 9 328 else: 329 lit_config.fatal("Unsupported apple platform '{}'".format(platform)) 330 331 return (major, minor) 332 333 for vers in min_macos_deployment_target_substitutions: 334 flag = config.apple_platform_min_deployment_target_flag 335 major, minor = get_macos_aligned_version(vers) 336 config.substitutions.append( ('%%min_macos_deployment_target=%s.%s' % vers, '{}={}.{}'.format(flag, major, minor)) ) 337else: 338 for vers in min_macos_deployment_target_substitutions: 339 config.substitutions.append( ('%%min_macos_deployment_target=%s.%s' % vers, '') ) 340 341if config.android: 342 env = os.environ.copy() 343 if config.android_serial: 344 env['ANDROID_SERIAL'] = config.android_serial 345 config.environment['ANDROID_SERIAL'] = config.android_serial 346 347 adb = os.environ.get('ADB', 'adb') 348 349 # These are needed for tests to upload/download temp files, such as 350 # suppression-files, to device. 351 config.substitutions.append( ('%device_rundir', "/data/local/tmp/Output") ) 352 config.substitutions.append( ('%push_to_device', "%s -s '%s' push " % (adb, env['ANDROID_SERIAL']) ) ) 353 config.substitutions.append( ('%pull_from_device', "%s -s '%s' pull " % (adb, env['ANDROID_SERIAL']) ) ) 354 config.substitutions.append( ('%adb_shell ', "%s -s '%s' shell " % (adb, env['ANDROID_SERIAL']) ) ) 355 356 try: 357 android_api_level_str = subprocess.check_output([adb, "shell", "getprop", "ro.build.version.sdk"], env=env).rstrip() 358 android_api_codename = subprocess.check_output([adb, "shell", "getprop", "ro.build.version.codename"], env=env).rstrip().decode("utf-8") 359 except (subprocess.CalledProcessError, OSError): 360 lit_config.fatal("Failed to read ro.build.version.sdk (using '%s' as adb)" % adb) 361 try: 362 android_api_level = int(android_api_level_str) 363 except ValueError: 364 lit_config.fatal("Failed to read ro.build.version.sdk (using '%s' as adb): got '%s'" % (adb, android_api_level_str)) 365 if android_api_level >= 26: 366 config.available_features.add('android-26') 367 if android_api_level >= 28: 368 config.available_features.add('android-28') 369 if android_api_level >= 31 or android_api_codename == 'S': 370 config.available_features.add('android-thread-properties-api') 371 372 # Prepare the device. 373 android_tmpdir = '/data/local/tmp/Output' 374 subprocess.check_call([adb, "shell", "mkdir", "-p", android_tmpdir], env=env) 375 for file in config.android_files_to_push: 376 subprocess.check_call([adb, "push", file, android_tmpdir], env=env) 377else: 378 config.substitutions.append( ('%device_rundir', "") ) 379 config.substitutions.append( ('%push_to_device', "echo ") ) 380 config.substitutions.append( ('%pull_from_device', "echo ") ) 381 config.substitutions.append( ('%adb_shell', "echo ") ) 382 383if config.host_os == 'Linux': 384 # detect whether we are using glibc, and which version 385 # NB: 'ldd' is just one of the tools commonly installed as part of glibc 386 ldd_ver_cmd = subprocess.Popen(['ldd', '--version'], 387 stdout=subprocess.PIPE, 388 env={'LANG': 'C'}) 389 sout, _ = ldd_ver_cmd.communicate() 390 ver_line = sout.splitlines()[0] 391 if not config.android and ver_line.startswith(b"ldd "): 392 from distutils.version import LooseVersion 393 ver = LooseVersion(ver_line.split()[-1].decode()) 394 # 2.27 introduced some incompatibilities 395 if ver >= LooseVersion("2.27"): 396 config.available_features.add("glibc-2.27") 397 398sancovcc_path = os.path.join(config.llvm_tools_dir, "sancov") 399if os.path.exists(sancovcc_path): 400 config.available_features.add("has_sancovcc") 401 config.substitutions.append( ("%sancovcc ", sancovcc_path) ) 402 403def is_darwin_lto_supported(): 404 return os.path.exists(os.path.join(config.llvm_shlib_dir, 'libLTO.dylib')) 405 406def is_binutils_lto_supported(): 407 if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold.so')): 408 return False 409 410 # We require both ld.bfd and ld.gold exist and support plugins. They are in 411 # the same repository 'binutils-gdb' and usually built together. 412 for exe in (config.gnu_ld_executable, config.gold_executable): 413 ld_cmd = subprocess.Popen([exe, '--help'], stdout=subprocess.PIPE, env={'LANG': 'C'}) 414 ld_out = ld_cmd.stdout.read().decode() 415 ld_cmd.wait() 416 if not '-plugin' in ld_out: 417 return False 418 419 return True 420 421def is_windows_lto_supported(): 422 return os.path.exists(os.path.join(config.llvm_tools_dir, 'lld-link.exe')) 423 424if config.host_os == 'Darwin' and is_darwin_lto_supported(): 425 config.lto_supported = True 426 config.lto_launch = ["env", "DYLD_LIBRARY_PATH=" + config.llvm_shlib_dir] 427 config.lto_flags = [] 428elif config.host_os in ['Linux', 'FreeBSD', 'NetBSD']: 429 config.lto_supported = False 430 if config.use_lld: 431 config.lto_supported = True 432 if is_binutils_lto_supported(): 433 config.available_features.add('binutils_lto') 434 config.lto_supported = True 435 436 if config.lto_supported: 437 config.lto_launch = [] 438 if config.use_lld: 439 config.lto_flags = ["-fuse-ld=lld"] 440 else: 441 config.lto_flags = ["-fuse-ld=gold"] 442elif config.host_os == 'Windows' and is_windows_lto_supported(): 443 config.lto_supported = True 444 config.lto_launch = [] 445 config.lto_flags = ["-fuse-ld=lld"] 446else: 447 config.lto_supported = False 448 449if config.lto_supported: 450 config.available_features.add('lto') 451 if config.use_thinlto: 452 config.available_features.add('thinlto') 453 config.lto_flags += ["-flto=thin"] 454 else: 455 config.lto_flags += ["-flto"] 456 if config.use_newpm: 457 config.lto_flags += ["-fexperimental-new-pass-manager"] 458 459if config.have_rpc_xdr_h: 460 config.available_features.add('sunrpc') 461 462# Ask llvm-config about assertion mode. 463try: 464 llvm_config_cmd = subprocess.Popen( 465 [os.path.join(config.llvm_tools_dir, 'llvm-config'), '--assertion-mode'], 466 stdout = subprocess.PIPE, 467 env=config.environment) 468except OSError as e: 469 print("Could not launch llvm-config in " + config.llvm_tools_dir) 470 print(" Failed with error #{0}: {1}".format(e.errno, e.strerror)) 471 exit(42) 472 473if re.search(r'ON', llvm_config_cmd.stdout.read().decode('ascii')): 474 config.available_features.add('asserts') 475llvm_config_cmd.wait() 476 477# Sanitizer tests tend to be flaky on Windows due to PR24554, so add some 478# retries. We don't do this on otther platforms because it's slower. 479if platform.system() == 'Windows': 480 config.test_retry_attempts = 2 481 482# No throttling on non-Darwin platforms. 483lit_config.parallelism_groups['shadow-memory'] = None 484 485if platform.system() == 'Darwin': 486 ios_device = config.apple_platform != 'osx' and not config.apple_platform.endswith('sim') 487 # Force sequential execution when running tests on iOS devices. 488 if ios_device: 489 lit_config.warning('Forcing sequential execution for iOS device tests') 490 lit_config.parallelism_groups['ios-device'] = 1 491 config.parallelism_group = 'ios-device' 492 493 # Only run up to 3 processes that require shadow memory simultaneously on 494 # 64-bit Darwin. Using more scales badly and hogs the system due to 495 # inefficient handling of large mmap'd regions (terabytes) by the kernel. 496 elif config.target_arch in ['x86_64', 'x86_64h']: 497 lit_config.warning('Throttling sanitizer tests that require shadow memory on Darwin 64bit') 498 lit_config.parallelism_groups['shadow-memory'] = 3 499 500# Multiple substitutions are necessary to support multiple shared objects used 501# at once. 502# Note that substitutions with numbers have to be defined first to avoid 503# being subsumed by substitutions with smaller postfix. 504for postfix in ["2", "1", ""]: 505 if config.host_os == 'Darwin': 506 config.substitutions.append( ("%ld_flags_rpath_exe" + postfix, '-Wl,-rpath,@executable_path/ %dynamiclib' + postfix) ) 507 config.substitutions.append( ("%ld_flags_rpath_so" + postfix, '-install_name @rpath/`basename %dynamiclib{}`'.format(postfix)) ) 508 elif config.host_os in ('FreeBSD', 'NetBSD', 'OpenBSD'): 509 config.substitutions.append( ("%ld_flags_rpath_exe" + postfix, "-Wl,-z,origin -Wl,-rpath,\$ORIGIN -L%T -l%xdynamiclib_namespec" + postfix) ) 510 config.substitutions.append( ("%ld_flags_rpath_so" + postfix, '') ) 511 elif config.host_os == 'Linux': 512 config.substitutions.append( ("%ld_flags_rpath_exe" + postfix, "-Wl,-rpath,\$ORIGIN -L%T -l%xdynamiclib_namespec" + postfix) ) 513 config.substitutions.append( ("%ld_flags_rpath_so" + postfix, '') ) 514 elif config.host_os == 'SunOS': 515 config.substitutions.append( ("%ld_flags_rpath_exe" + postfix, "-Wl,-R\$ORIGIN -L%T -l%xdynamiclib_namespec" + postfix) ) 516 config.substitutions.append( ("%ld_flags_rpath_so" + postfix, '') ) 517 518 # Must be defined after the substitutions that use %dynamiclib. 519 config.substitutions.append( ("%dynamiclib" + postfix, '%T/%xdynamiclib_filename' + postfix) ) 520 config.substitutions.append( ("%xdynamiclib_filename" + postfix, 'lib%xdynamiclib_namespec{}.so'.format(postfix)) ) 521 config.substitutions.append( ("%xdynamiclib_namespec", '%basename_t.dynamic') ) 522 523# Provide a substituion that can be used to tell Clang to use a static libstdc++. 524# The substitution expands to nothing on non Linux platforms. 525# FIXME: This should check the target OS, not the host OS. 526if config.host_os == 'Linux': 527 config.substitutions.append( ("%linux_static_libstdcplusplus", "-stdlib=libstdc++ -static-libstdc++") ) 528else: 529 config.substitutions.append( ("%linux_static_libstdcplusplus", "") ) 530 531config.default_sanitizer_opts = [] 532if config.host_os == 'Darwin': 533 # On Darwin, we default to `abort_on_error=1`, which would make tests run 534 # much slower. Let's override this and run lit tests with 'abort_on_error=0'. 535 config.default_sanitizer_opts += ['abort_on_error=0'] 536 config.default_sanitizer_opts += ['log_to_syslog=0'] 537 if lit.util.which('log'): 538 # Querying the log can only done by a privileged user so 539 # so check if we can query the log. 540 exit_code = -1 541 with open('/dev/null', 'r') as f: 542 # Run a `log show` command the should finish fairly quickly and produce very little output. 543 exit_code = subprocess.call(['log', 'show', '--last', '1m', '--predicate', '1 == 0'], stdout=f, stderr=f) 544 if exit_code == 0: 545 config.available_features.add('darwin_log_cmd') 546 else: 547 lit_config.warning('log command found but cannot queried') 548 else: 549 lit_config.warning('log command not found. Some tests will be skipped.') 550elif config.android: 551 config.default_sanitizer_opts += ['abort_on_error=0'] 552 553# Allow tests to use REQUIRES=stable-runtime. For use when you cannot use XFAIL 554# because the test hangs or fails on one configuration and not the other. 555if config.android or (config.target_arch not in ['arm', 'armhf', 'aarch64']): 556 config.available_features.add('stable-runtime') 557 558if config.asan_shadow_scale: 559 config.available_features.add("shadow-scale-%s" % config.asan_shadow_scale) 560else: 561 config.available_features.add("shadow-scale-3") 562 563if config.memprof_shadow_scale: 564 config.available_features.add("memprof-shadow-scale-%s" % config.memprof_shadow_scale) 565else: 566 config.available_features.add("memprof-shadow-scale-3") 567 568if config.expensive_checks: 569 config.available_features.add("expensive_checks") 570 571# Propagate the LLD/LTO into the clang config option, so nothing else is needed. 572run_wrapper = [] 573target_cflags = [getattr(config, 'target_cflags', None)] 574extra_cflags = [] 575 576if config.use_lto and config.lto_supported: 577 run_wrapper += config.lto_launch 578 extra_cflags += config.lto_flags 579elif config.use_lto and (not config.lto_supported): 580 config.unsupported = True 581 582if config.use_lld and config.has_lld and not config.use_lto: 583 extra_cflags += ["-fuse-ld=lld"] 584elif config.use_lld and (not config.has_lld): 585 config.unsupported = True 586 587config.clang = " " + " ".join(run_wrapper + [config.compile_wrapper, config.clang]) + " " 588config.target_cflags = " " + " ".join(target_cflags + extra_cflags) + " " 589