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llvm-project/compiler-rt/test/lit.common.cfg.py

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# -*- Python -*-
# Configuration file for 'lit' test runner.
# This file contains common rules for various compiler-rt testsuites.
# It is mostly copied from lit.cfg.py used by Clang.
import os
import platform
import re
import subprocess
import json
import lit.formats
import lit.util
# Get shlex.quote if available (added in 3.3), and fall back to pipes.quote if
# it's not available.
try:
import shlex
sh_quote = shlex.quote
except:
import pipes
sh_quote = pipes.quote
def find_compiler_libdir():
"""
Returns the path to library resource directory used
by the compiler.
"""
if config.compiler_id != 'Clang':
lit_config.warning(f'Determining compiler\'s runtime directory is not supported for {config.compiler_id}')
# TODO: Support other compilers.
return None
def get_path_from_clang(args, allow_failure):
clang_cmd = [
config.clang.strip(),
f'--target={config.target_triple}',
]
clang_cmd.extend(args)
path = None
try:
result = subprocess.run(
clang_cmd,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
check=True
)
path = result.stdout.decode().strip()
except subprocess.CalledProcessError as e:
msg = f'Failed to run {clang_cmd}\nrc:{e.returncode}\nstdout:{e.stdout}\ne.stderr{e.stderr}'
if allow_failure:
lit_config.warning(msg)
else:
lit_config.fatal(msg)
return path, clang_cmd
# Try using `-print-runtime-dir`. This is only supported by very new versions of Clang.
# so allow failure here.
runtime_dir, clang_cmd = get_path_from_clang(shlex.split(config.target_cflags)
+ ['-print-runtime-dir'],
allow_failure=True)
if runtime_dir:
if os.path.exists(runtime_dir):
return os.path.realpath(runtime_dir)
# TODO(dliew): This should be a fatal error but it seems to trip the `llvm-clang-win-x-aarch64`
# bot which is likely misconfigured
lit_config.warning(
f'Path reported by clang does not exist: \"{runtime_dir}\". '
f'This path was found by running {clang_cmd}.'
)
return None
# Fall back for older AppleClang that doesn't support `-print-runtime-dir`
# Note `-print-file-name=<path to compiler-rt lib>` was broken for Apple
# platforms so we can't use that approach here (see https://reviews.llvm.org/D101682).
if config.host_os == 'Darwin':
lib_dir, _ = get_path_from_clang(['-print-file-name=lib'], allow_failure=False)
runtime_dir = os.path.join(lib_dir, 'darwin')
if not os.path.exists(runtime_dir):
lit_config.fatal(f'Path reported by clang does not exist: {runtime_dir}')
return os.path.realpath(runtime_dir)
lit_config.warning('Failed to determine compiler\'s runtime directory')
return None
# Choose between lit's internal shell pipeline runner and a real shell. If
# LIT_USE_INTERNAL_SHELL is in the environment, we use that as an override.
use_lit_shell = os.environ.get("LIT_USE_INTERNAL_SHELL")
if use_lit_shell:
# 0 is external, "" is default, and everything else is internal.
execute_external = (use_lit_shell == "0")
else:
# Otherwise we default to internal on Windows and external elsewhere, as
# bash on Windows is usually very slow.
execute_external = (not sys.platform in ['win32'])
# Allow expanding substitutions that are based on other substitutions
config.recursiveExpansionLimit = 10
# Setup test format.
config.test_format = lit.formats.ShTest(execute_external)
if execute_external:
config.available_features.add('shell')
compiler_id = getattr(config, 'compiler_id', None)
if compiler_id == "Clang":
if platform.system() != 'Windows':
config.cxx_mode_flags = ["--driver-mode=g++"]
else:
config.cxx_mode_flags = []
# We assume that sanitizers should provide good enough error
# reports and stack traces even with minimal debug info.
config.debug_info_flags = ["-gline-tables-only"]
if platform.system() == 'Windows':
# On Windows, use CodeView with column info instead of DWARF. Both VS and
# windbg do not behave well when column info is enabled, but users have
# requested it because it makes ASan reports more precise.
config.debug_info_flags.append("-gcodeview")
config.debug_info_flags.append("-gcolumn-info")
elif compiler_id == 'GNU':
config.cxx_mode_flags = ["-x c++"]
config.debug_info_flags = ["-g"]
else:
lit_config.fatal("Unsupported compiler id: %r" % compiler_id)
# Add compiler ID to the list of available features.
config.available_features.add(compiler_id)
# When LLVM_ENABLE_PER_TARGET_RUNTIME_DIR=on, the initial value of
# config.compiler_rt_libdir (COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR) has the
# triple as the trailing path component. The value is incorrect for -m32/-m64.
# Adjust config.compiler_rt accordingly.
if config.enable_per_target_runtime_dir:
if '-m32' in shlex.split(config.target_cflags):
config.compiler_rt_libdir = re.sub(r'/x86_64(?=-[^/]+$)', '/i386', config.compiler_rt_libdir)
elif '-m64' in shlex.split(config.target_cflags):
config.compiler_rt_libdir = re.sub(r'/i386(?=-[^/]+$)', '/x86_64', config.compiler_rt_libdir)
# Ask the compiler for the path to libraries it is going to use. If this
# doesn't match config.compiler_rt_libdir then it means we might be testing the
# compiler's own runtime libraries rather than the ones we just built.
# Warn about about this and handle appropriately.
compiler_libdir = find_compiler_libdir()
if compiler_libdir:
compiler_rt_libdir_real = os.path.realpath(config.compiler_rt_libdir)
if compiler_libdir != compiler_rt_libdir_real:
lit_config.warning(
'Compiler lib dir != compiler-rt lib dir\n'
f'Compiler libdir: "{compiler_libdir}"\n'
f'compiler-rt libdir: "{compiler_rt_libdir_real}"')
if config.test_standalone_build_libs:
# Use just built runtime libraries, i.e. the the libraries this built just built.
if not config.test_suite_supports_overriding_runtime_lib_path:
# Test suite doesn't support this configuration.
# TODO(dliew): This should be an error but it seems several bots are
# testing incorrectly and having this as an error breaks them.
lit_config.warning(
'COMPILER_RT_TEST_STANDALONE_BUILD_LIBS=ON, but this test suite '
'does not support testing the just-built runtime libraries '
'when the test compiler is configured to use different runtime '
'libraries. Either modify this test suite to support this test '
'configuration, or set COMPILER_RT_TEST_STANDALONE_BUILD_LIBS=OFF '
'to test the runtime libraries included in the compiler instead.'
)
else:
# Use Compiler's resource library directory instead.
config.compiler_rt_libdir = compiler_libdir
lit_config.note(f'Testing using libraries in "{config.compiler_rt_libdir}"')
# If needed, add cflag for shadow scale.
if config.asan_shadow_scale != '':
config.target_cflags += " -mllvm -asan-mapping-scale=" + config.asan_shadow_scale
if config.memprof_shadow_scale != '':
config.target_cflags += " -mllvm -memprof-mapping-scale=" + config.memprof_shadow_scale
config.environment = dict(os.environ)
# Clear some environment variables that might affect Clang.
possibly_dangerous_env_vars = ['ASAN_OPTIONS', 'DFSAN_OPTIONS', 'LSAN_OPTIONS',
'MSAN_OPTIONS', 'UBSAN_OPTIONS',
'COMPILER_PATH', 'RC_DEBUG_OPTIONS',
'CINDEXTEST_PREAMBLE_FILE', 'LIBRARY_PATH',
'CPATH', 'C_INCLUDE_PATH', 'CPLUS_INCLUDE_PATH',
'OBJC_INCLUDE_PATH', 'OBJCPLUS_INCLUDE_PATH',
'LIBCLANG_TIMING', 'LIBCLANG_OBJTRACKING',
'LIBCLANG_LOGGING', 'LIBCLANG_BGPRIO_INDEX',
'LIBCLANG_BGPRIO_EDIT', 'LIBCLANG_NOTHREADS',
'LIBCLANG_RESOURCE_USAGE',
'LIBCLANG_CODE_COMPLETION_LOGGING',
'XRAY_OPTIONS']
# Clang/Win32 may refer to %INCLUDE%. vsvarsall.bat sets it.
if platform.system() != 'Windows':
possibly_dangerous_env_vars.append('INCLUDE')
for name in possibly_dangerous_env_vars:
if name in config.environment:
del config.environment[name]
# Tweak PATH to include llvm tools dir.
if (not config.llvm_tools_dir) or (not os.path.exists(config.llvm_tools_dir)):
lit_config.fatal("Invalid llvm_tools_dir config attribute: %r" % config.llvm_tools_dir)
path = os.path.pathsep.join((config.llvm_tools_dir, config.environment['PATH']))
config.environment['PATH'] = path
# Help MSVS link.exe find the standard libraries.
# Make sure we only try to use it when targetting Windows.
if platform.system() == 'Windows' and '-win' in config.target_triple:
config.environment['LIB'] = os.environ['LIB']
config.available_features.add(config.host_os.lower())
if re.match(r'^x86_64.*-linux', config.target_triple):
config.available_features.add("x86_64-linux")
config.available_features.add("host-byteorder-" + sys.byteorder + "-endian")
if config.have_zlib == "1":
config.available_features.add("zlib")
# Use ugly construction to explicitly prohibit "clang", "clang++" etc.
# in RUN lines.
config.substitutions.append(
(' clang', """\n\n*** Do not use 'clangXXX' in tests,
instead define '%clangXXX' substitution in lit config. ***\n\n""") )
if config.host_os == 'NetBSD':
nb_commands_dir = os.path.join(config.compiler_rt_src_root,
"test", "sanitizer_common", "netbsd_commands")
config.netbsd_noaslr_prefix = ('sh ' +
os.path.join(nb_commands_dir, 'run_noaslr.sh'))
config.netbsd_nomprotect_prefix = ('sh ' +
os.path.join(nb_commands_dir,
'run_nomprotect.sh'))
config.substitutions.append( ('%run_nomprotect',
config.netbsd_nomprotect_prefix) )
else:
config.substitutions.append( ('%run_nomprotect', '%run') )
# Copied from libcxx's config.py
def get_lit_conf(name, default=None):
# Allow overriding on the command line using --param=<name>=<val>
val = lit_config.params.get(name, None)
if val is None:
val = getattr(config, name, None)
if val is None:
val = default
return val
emulator = get_lit_conf('emulator', None)
def get_ios_commands_dir():
return os.path.join(config.compiler_rt_src_root, "test", "sanitizer_common", "ios_commands")
# Allow tests to be executed on a simulator or remotely.
if emulator:
config.substitutions.append( ('%run', emulator) )
config.substitutions.append( ('%env ', "env ") )
# TODO: Implement `%device_rm` to perform removal of files in the emulator.
# For now just make it a no-op.
lit_config.warning('%device_rm is not implemented')
config.substitutions.append( ('%device_rm', 'echo ') )
config.compile_wrapper = ""
elif config.host_os == 'Darwin' and config.apple_platform != "osx":
# Darwin tests can be targetting macOS, a device or a simulator. All devices
# are declared as "ios", even for iOS derivatives (tvOS, watchOS). Similarly,
# all simulators are "iossim". See the table below.
#
# =========================================================================
# Target | Feature set
# =========================================================================
# macOS | darwin
# iOS device | darwin, ios
# iOS simulator | darwin, ios, iossim
# tvOS device | darwin, ios, tvos
# tvOS simulator | darwin, ios, iossim, tvos, tvossim
# watchOS device | darwin, ios, watchos
# watchOS simulator | darwin, ios, iossim, watchos, watchossim
# =========================================================================
ios_or_iossim = "iossim" if config.apple_platform.endswith("sim") else "ios"
config.available_features.add('ios')
device_id_env = "SANITIZER_" + ios_or_iossim.upper() + "_TEST_DEVICE_IDENTIFIER"
if ios_or_iossim == "iossim":
config.available_features.add('iossim')
if device_id_env not in os.environ:
lit_config.fatal(
'{} must be set in the environment when running iossim tests'.format(
device_id_env))
if config.apple_platform != "ios" and config.apple_platform != "iossim":
config.available_features.add(config.apple_platform)
ios_commands_dir = get_ios_commands_dir()
run_wrapper = os.path.join(ios_commands_dir, ios_or_iossim + "_run.py")
env_wrapper = os.path.join(ios_commands_dir, ios_or_iossim + "_env.py")
compile_wrapper = os.path.join(ios_commands_dir, ios_or_iossim + "_compile.py")
prepare_script = os.path.join(ios_commands_dir, ios_or_iossim + "_prepare.py")
if device_id_env in os.environ:
config.environment[device_id_env] = os.environ[device_id_env]
config.substitutions.append(('%run', run_wrapper))
config.substitutions.append(('%env ', env_wrapper + " "))
# Current implementation of %device_rm uses the run_wrapper to do
# the work.
config.substitutions.append(('%device_rm', '{} rm '.format(run_wrapper)))
config.compile_wrapper = compile_wrapper
try:
prepare_output = subprocess.check_output([prepare_script, config.apple_platform, config.clang]).decode().strip()
except subprocess.CalledProcessError as e:
print("Command failed:")
print(e.output)
raise e
if len(prepare_output) > 0: print(prepare_output)
prepare_output_json = prepare_output.split("\n")[-1]
prepare_output = json.loads(prepare_output_json)
config.environment.update(prepare_output["env"])
elif config.android:
config.available_features.add('android')
compile_wrapper = os.path.join(config.compiler_rt_src_root, "test", "sanitizer_common", "android_commands", "android_compile.py") + " "
config.compile_wrapper = compile_wrapper
config.substitutions.append( ('%run', "") )
config.substitutions.append( ('%env ', "env ") )
else:
config.substitutions.append( ('%run', "") )
config.substitutions.append( ('%env ', "env ") )
# When running locally %device_rm is a no-op.
config.substitutions.append( ('%device_rm', 'echo ') )
config.compile_wrapper = ""
# Define CHECK-%os to check for OS-dependent output.
config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os)))
# Define %arch to check for architecture-dependent output.
config.substitutions.append( ('%arch', (config.host_arch)))
if config.host_os == 'Windows':
# FIXME: This isn't quite right. Specifically, it will succeed if the program
# does not crash but exits with a non-zero exit code. We ought to merge
# KillTheDoctor and not --crash to make the latter more useful and remove the
# need for this substitution.
config.expect_crash = "not KillTheDoctor "
else:
config.expect_crash = "not --crash "
config.substitutions.append( ("%expect_crash ", config.expect_crash) )
target_arch = getattr(config, 'target_arch', None)
if target_arch:
config.available_features.add(target_arch + '-target-arch')
if target_arch in ['x86_64', 'i386']:
config.available_features.add('x86-target-arch')
config.available_features.add(target_arch + '-' + config.host_os.lower())
compiler_rt_debug = getattr(config, 'compiler_rt_debug', False)
if not compiler_rt_debug:
config.available_features.add('compiler-rt-optimized')
libdispatch = getattr(config, 'compiler_rt_intercept_libdispatch', False)
if libdispatch:
config.available_features.add('libdispatch')
sanitizer_can_use_cxxabi = getattr(config, 'sanitizer_can_use_cxxabi', True)
if sanitizer_can_use_cxxabi:
config.available_features.add('cxxabi')
if not getattr(config, 'sanitizer_uses_static_cxxabi', False):
config.available_features.add('shared_cxxabi')
if not getattr(config, 'sanitizer_uses_static_unwind', False):
config.available_features.add('shared_unwind')
if config.has_lld:
config.available_features.add('lld-available')
if config.use_lld:
config.available_features.add('lld')
if config.can_symbolize:
config.available_features.add('can-symbolize')
if config.gwp_asan:
config.available_features.add('gwp_asan')
lit.util.usePlatformSdkOnDarwin(config, lit_config)
min_macos_deployment_target_substitutions = [
(10, 11),
(10, 12),
]
# TLS requires watchOS 3+
config.substitutions.append( ('%darwin_min_target_with_tls_support', '%min_macos_deployment_target=10.12') )
if config.host_os == 'Darwin':
osx_version = (10, 0, 0)
try:
osx_version = subprocess.check_output(["sw_vers", "-productVersion"],
universal_newlines=True)
osx_version = tuple(int(x) for x in osx_version.split('.'))
if len(osx_version) == 2: osx_version = (osx_version[0], osx_version[1], 0)
if osx_version >= (10, 11):
config.available_features.add('osx-autointerception')
config.available_features.add('osx-ld64-live_support')
if osx_version >= (10, 15):
config.available_features.add('osx-swift-runtime')
except subprocess.CalledProcessError:
pass
config.darwin_osx_version = osx_version
# Detect x86_64h
try:
output = subprocess.check_output(["sysctl", "hw.cpusubtype"])
output_re = re.match("^hw.cpusubtype: ([0-9]+)$", output)
if output_re:
cpu_subtype = int(output_re.group(1))
if cpu_subtype == 8: # x86_64h
config.available_features.add('x86_64h')
except:
pass
# 32-bit iOS simulator is deprecated and removed in latest Xcode.
if config.apple_platform == "iossim":
if config.target_arch == "i386":
config.unsupported = True
def get_macos_aligned_version(macos_vers):
platform = config.apple_platform
if platform == 'osx':
return macos_vers
macos_major, macos_minor = macos_vers
assert macos_major >= 10
if macos_major == 10: # macOS 10.x
major = macos_minor
minor = 0
else: # macOS 11+
major = macos_major + 5
minor = macos_minor
assert major >= 11
if platform.startswith('ios') or platform.startswith('tvos'):
major -= 2
elif platform.startswith('watch'):
major -= 9
else:
lit_config.fatal("Unsupported apple platform '{}'".format(platform))
return (major, minor)
for vers in min_macos_deployment_target_substitutions:
flag = config.apple_platform_min_deployment_target_flag
major, minor = get_macos_aligned_version(vers)
config.substitutions.append( ('%%min_macos_deployment_target=%s.%s' % vers, '{}={}.{}'.format(flag, major, minor)) )
else:
for vers in min_macos_deployment_target_substitutions:
config.substitutions.append( ('%%min_macos_deployment_target=%s.%s' % vers, '') )
if config.android:
env = os.environ.copy()
if config.android_serial:
env['ANDROID_SERIAL'] = config.android_serial
config.environment['ANDROID_SERIAL'] = config.android_serial
adb = os.environ.get('ADB', 'adb')
# These are needed for tests to upload/download temp files, such as
# suppression-files, to device.
config.substitutions.append( ('%device_rundir/', "/data/local/tmp/Output/") )
config.substitutions.append( ('%push_to_device', "%s -s '%s' push " % (adb, env['ANDROID_SERIAL']) ) )
config.substitutions.append( ('%adb_shell ', "%s -s '%s' shell " % (adb, env['ANDROID_SERIAL']) ) )
config.substitutions.append( ('%device_rm', "%s -s '%s' shell 'rm ' " % (adb, env['ANDROID_SERIAL']) ) )
try:
android_api_level_str = subprocess.check_output([adb, "shell", "getprop", "ro.build.version.sdk"], env=env).rstrip()
android_api_codename = subprocess.check_output([adb, "shell", "getprop", "ro.build.version.codename"], env=env).rstrip().decode("utf-8")
except (subprocess.CalledProcessError, OSError):
lit_config.fatal("Failed to read ro.build.version.sdk (using '%s' as adb)" % adb)
try:
android_api_level = int(android_api_level_str)
except ValueError:
lit_config.fatal("Failed to read ro.build.version.sdk (using '%s' as adb): got '%s'" % (adb, android_api_level_str))
android_api_level = min(android_api_level, int(config.android_api_level))
for required in [26, 28, 29, 30]:
if android_api_level >= required:
config.available_features.add('android-%s' % required)
# FIXME: Replace with appropriate version when availible.
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.
android_tmpdir = '/data/local/tmp/Output'
subprocess.check_call([adb, "shell", "mkdir", "-p", android_tmpdir], env=env)
for file in config.android_files_to_push:
subprocess.check_call([adb, "push", file, android_tmpdir], env=env)
else:
config.substitutions.append( ('%device_rundir/', "") )
config.substitutions.append( ('%push_to_device', "echo ") )
config.substitutions.append( ('%adb_shell', "echo ") )
if config.host_os == 'Linux':
# detect whether we are using glibc, and which version
# NB: 'ldd' is just one of the tools commonly installed as part of glibc/musl
ldd_ver_cmd = subprocess.Popen(['ldd', '--version'],
stdout=subprocess.PIPE,
stderr=subprocess.DEVNULL,
env={'LANG': 'C'})
sout, _ = ldd_ver_cmd.communicate()
ver_lines = sout.splitlines()
if not config.android and len(ver_lines) and ver_lines[0].startswith(b"ldd "):
from distutils.version import LooseVersion
ver = LooseVersion(ver_lines[0].split()[-1].decode())
for required in ["2.27", "2.30", "2.34"]:
if ver >= LooseVersion(required):
config.available_features.add("glibc-" + required)
sancovcc_path = os.path.join(config.llvm_tools_dir, "sancov")
if os.path.exists(sancovcc_path):
config.available_features.add("has_sancovcc")
config.substitutions.append( ("%sancovcc ", sancovcc_path) )
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.
else:
lit_config.warning('Throttling sanitizer tests that require shadow memory on Darwin')
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 substitution 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())
))
)
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