blob: f22b0376b4d8ce850118b85706db64cf990cafa9 [file] [log] [blame]
# -*- Python -*-
import os
import platform
import re
import subprocess
import tempfile
# Configuration file for the 'lit' test runner.
# name: The name of this test suite. = 'Clang'
# Tweak PATH for Win32
if platform.system() == 'Windows':
# Seek sane tools in directories and set to $PATH.
path = getattr(config, 'lit_tools_dir', None)
path = lit.getToolsPath(path,
['cmp.exe', 'grep.exe', 'sed.exe'])
if path is not None:
path = os.path.pathsep.join((path,
config.environment['PATH'] = path
# testFormat: The test format to use to interpret tests.
# For now we require '&&' between commands, until they get globally killed and
# the test runner updated.
execute_external = (platform.system() != 'Windows'
or lit.getBashPath() not in [None, ""])
config.test_format = lit.formats.ShTest(execute_external)
# suffixes: A list of file extensions to treat as test files.
config.suffixes = ['.c', '.cpp', '.m', '.mm', '.cu', '.ll', '.cl', '.s']
# test_source_root: The root path where tests are located.
config.test_source_root = os.path.dirname(__file__)
# test_exec_root: The root path where tests should be run.
clang_obj_root = getattr(config, 'clang_obj_root', None)
if clang_obj_root is not None:
config.test_exec_root = os.path.join(clang_obj_root, 'test')
# Set llvm_{src,obj}_root for use by others.
config.llvm_src_root = getattr(config, 'llvm_src_root', None)
config.llvm_obj_root = getattr(config, 'llvm_obj_root', None)
# Clear some environment variables that might affect Clang.
# This first set of vars are read by Clang, but shouldn't affect tests
# that aren't specifically looking for these features, or are required
# simply to run the tests at all.
# FIXME: Should we have a tool that enforces this?
# safe_env_vars = ('TMPDIR', 'TEMP', 'TMP', 'USERPROFILE', 'PWD',
possibly_dangerous_env_vars = ['COMPILER_PATH', 'RC_DEBUG_OPTIONS',
# Clang/Win32 may refer to %INCLUDE%. vsvarsall.bat sets it.
if platform.system() != 'Windows':
for name in possibly_dangerous_env_vars:
if name in config.environment:
del config.environment[name]
# Tweak the PATH to include the tools dir and the scripts dir.
if clang_obj_root is not None:
llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
if not llvm_tools_dir:
lit.fatal('No LLVM tools dir set!')
path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
config.environment['PATH'] = path
llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
if not llvm_libs_dir:
lit.fatal('No LLVM libs dir set!')
path = os.path.pathsep.join((llvm_libs_dir,
config.environment['LD_LIBRARY_PATH'] = path
# Check that the object root is known.
if config.test_exec_root is None:
# Otherwise, we haven't loaded the site specific configuration (the user is
# probably trying to run on a test file directly, and either the site
# configuration hasn't been created by the build system, or we are in an
# out-of-tree build situation).
# Check for 'clang_site_config' user parameter, and use that if available.
site_cfg = lit.params.get('clang_site_config', None)
if site_cfg and os.path.exists(site_cfg):
lit.load_config(config, site_cfg)
raise SystemExit
# Try to detect the situation where we are using an out-of-tree build by
# looking for 'llvm-config'.
# FIXME: I debated (i.e., wrote and threw away) adding logic to
# automagically generate the if we are in some kind of fresh
# build situation. This means knowing how to invoke the build system though,
# and I decided it was too much magic. We should solve this by just having
# the .cfg files generated during the configuration step.
llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
if not llvm_config:
lit.fatal('No site specific configuration available!')
# Get the source and object roots.
llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
clang_src_root = os.path.join(llvm_src_root, "tools", "clang")
clang_obj_root = os.path.join(llvm_obj_root, "tools", "clang")
# Validate that we got a tree which points to here, using the standard
# tools/clang layout.
this_src_root = os.path.dirname(config.test_source_root)
if os.path.realpath(clang_src_root) != os.path.realpath(this_src_root):
lit.fatal('No site specific configuration available!')
# Check that the site specific configuration exists.
site_cfg = os.path.join(clang_obj_root, 'test', '')
if not os.path.exists(site_cfg):
lit.fatal('No site specific configuration available! You may need to '
'run "make test" in your Clang build directory.')
# Okay, that worked. Notify the user of the automagic, and reconfigure.
lit.note('using out-of-tree build at %r' % clang_obj_root)
lit.load_config(config, site_cfg)
raise SystemExit
# Discover the 'clang' and 'clangcc' to use.
import os
def inferClang(PATH):
# Determine which clang to use.
clang = os.getenv('CLANG')
# If the user set clang in the environment, definitely use that and don't
# try to validate.
if clang:
return clang
# Otherwise look in the path.
clang = lit.util.which('clang', PATH)
if not clang:
lit.fatal("couldn't find 'clang' program, try setting "
"CLANG in your environment")
return clang
config.clang = inferClang(config.environment['PATH']).replace('\\', '/')
if not lit.quiet:
lit.note('using clang: %r' % config.clang)
# Note that when substituting %clang_cc1 also fill in the include directory of
# the builtin headers. Those are part of even a freestanding environment, but
# Clang relies on the driver to locate them.
def getClangBuiltinIncludeDir(clang):
# FIXME: Rather than just getting the version, we should have clang print
# out its resource dir here in an easy to scrape form.
cmd = subprocess.Popen([clang, '-print-file-name=include'],
if not cmd.stdout:
lit.fatal("Couldn't find the include dir for Clang ('%s')" % clang)
config.substitutions.append( ('%clang_cc1', '%s -cc1 -internal-isystem %s'
% (config.clang,
getClangBuiltinIncludeDir(config.clang))) )
config.substitutions.append( ('%clangxx', ' ' + config.clang +
' -ccc-cxx '))
config.substitutions.append( ('%clang', ' ' + config.clang + ' ') )
config.substitutions.append( ('%test_debuginfo', ' ' + config.llvm_src_root + '/utils/ ') )
# FIXME: Find nicer way to prohibit this.
(' clang ', """*** Do not use 'clang' in tests, use '%clang'. ***""") )
(' clang\+\+ ', """*** Do not use 'clang++' in tests, use '%clangxx'. ***"""))
(' clang-cc ',
"""*** Do not use 'clang-cc' in tests, use '%clang_cc1'. ***""") )
(' clang -cc1 ',
"""*** Do not use 'clang -cc1' in tests, use '%clang_cc1'. ***""") )
(' %clang-cc1 ',
"""*** invalid substitution, use '%clang_cc1'. ***""") )
# Set available features we allow tests to conditionalize on.
# As of 2011.08, crash-recovery tests still do not pass on FreeBSD.
if platform.system() not in ['FreeBSD']:
# Shell execution
if platform.system() not in ['Windows'] or lit.getBashPath() != '':
# Exclude MSYS due to transforming '/' to 'X:/mingwroot/'.
if not platform.system() in ['Windows'] or lit.getBashPath() == '':
# For tests that require Darwin to run.
if platform.system() in ['Darwin']:
# ANSI escape sequences in non-dumb terminal
if platform.system() not in ['Windows']:
# Case-insensitive file system
def is_filesystem_case_insensitive():
handle, path = tempfile.mkstemp(prefix='case-test', dir=config.test_exec_root)
isInsensitive = os.path.exists(path.upper())
return isInsensitive
if is_filesystem_case_insensitive():
# Tests that require the /dev/fd filesystem.
if os.path.exists("/dev/fd/0") and sys.platform not in ['cygwin']:
# [PR8833] LLP64-incompatible tests
if not re.match(r'^x86_64.*-(win32|mingw32)$', config.target_triple):
# [PR12920] "clang-driver" -- set if gcc driver is not used.
if not re.match(r'.*-(cygwin|mingw32)$', config.target_triple):
# Registered Targets
def get_llc_props(tool):
set_of_targets = set()
enable_assertions = False
cmd = subprocess.Popen([tool, '-version'], stdout=subprocess.PIPE)
# Parse the stdout to get the list of registered targets.
parse_targets = False
for line in cmd.stdout:
if parse_targets:
m = re.match( r'(.*) - ', line)
if m is not None:
set_of_targets.add( + '-registered-target')
elif "Registered Targets:" in line:
parse_targets = True
if'with assertions', line):
enable_assertions = True
return {"set_of_targets": set_of_targets,
"enable_assertions": enable_assertions}
llc_props = get_llc_props(os.path.join(llvm_tools_dir, 'llc'))
if len(llc_props['set_of_targets']) > 0:
lit.fatal('No Targets Registered with the LLVM Tools!')
if llc_props['enable_assertions']:
if lit.util.which('xmllint'):