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lit.cfg
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lit.cfg
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# -*- Python -*-
# Configuration file for the 'lit' test runner.
import os
import platform
import re
import lit.util
import lit.formats
# name: The name of this test suite.
config.name = 'Cling'
# 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_config.getToolsPath(path,
config.environment['PATH'],
['cmp.exe', 'grep.exe', 'sed.exe'])
if path is not None:
path = os.path.pathsep.join((path,
config.environment['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_config.getBashPath() not in [None, ""])
# testFormat: The test format to use to interpret tests.
#config.test_format = lit_config.formats.TclTest()
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']
# suffixes: A list of file extensions to treat as test files, this is actually
# set by on_clone().
config.suffixes = ['.C']
# 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.
cling_obj_root = getattr(config, 'cling_obj_root', None)
if cling_obj_root is not None:
config.test_exec_root = os.path.join(cling_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)
# Tweak the PATH to include the tools dir and the scripts dir.
if cling_obj_root is not None:
llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
if not llvm_tools_dir:
lit_config.fatal('No LLVM tools dir set!')
path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
# For MacOS with libc++, out clang will not find libc++ causing errors with
# STL. Use the XCode one instead by not adding ours to the path. Cling is
# still found through deferCling().
if platform.mac_ver()[0] is '' or \
float('.'.join(platform.mac_ver()[0].split('.')[:2])) < 10.9:
config.environment['PATH'] = path
llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
if not llvm_libs_dir:
lit_config.fatal('No LLVM libs dir set!')
path = os.path.pathsep.join((llvm_libs_dir,
config.environment.get('LD_LIBRARY_PATH','')))
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 'cling_site_config' user parameter, and use that if available.
site_cfg = lit_config.params.get('cling_site_config', None)
if site_cfg and os.path.exists(site_cfg):
lit_config.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 lit.site.cfg 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_config.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()
cling_src_root = os.path.join(llvm_src_root, "tools", "cling")
cling_obj_root = os.path.join(llvm_obj_root, "tools", "cling")
# Validate that we got a tree which points to here, using the standard
# tools/cling layout.
this_src_root = os.path.dirname(config.test_source_root)
if os.path.realpath(cling_src_root) != os.path.realpath(this_src_root):
lit_config.fatal('No site specific configuration available!')
# Check that the site specific configuration exists.
site_cfg = os.path.join(cling_obj_root, 'test', 'lit.site.cfg')
if not os.path.exists(site_cfg):
lit_config.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_config.note('using out-of-tree build at %r' % cling_obj_root)
lit_config.load_config(config, site_cfg)
raise SystemExit
###
# Discover the 'cling' to use.
# Load site data from DejaGNU's site.exp.
import re
site_exp = {}
# FIXME: Implement lit.site.cfg.
##for line in open(os.path.join(config.llvm_obj_root, 'test', 'site.exp')):
## m = re.match('set ([^ ]+) "(.*)"', line)
## if m:
## site_exp[m.group(1)] = m.group(2)
# Add substitutions.
##config.substitutions.append(('%llvmgcc_only', site_exp['llvmgcc']))
##for sub in ['llvmgcc', 'llvmgxx', 'emitir', 'compile_cxx', 'compile_c',
## 'link', 'shlibext', 'ocamlopt', 'llvmdsymutil', 'llvmlibsdir',
## 'llvmshlibdir',
## 'bugpoint_topts']:
## if sub in ('llvmgcc', 'llvmgxx'):
## config.substitutions.append(('%' + sub,
## site_exp[sub] + ' %emitir -w'))
## # FIXME: This is a hack to avoid LLVMC tests failing due to a clang driver
## # warning when passing in "-fexceptions -fno-exceptions".
## elif sub == 'compile_cxx':
## config.substitutions.append(('%' + sub,
## site_exp[sub].replace('-fno-exceptions', '')))
## else:
## config.substitutions.append(('%' + sub, site_exp[sub]))
config.substitutions.append(('%testexecdir', config.test_exec_root))
config.substitutions.append(('%shlibext', config.shlibext))
config.substitutions.append(('%llvmsrcdir', config.llvm_src_root))
# For each occurrence of an llvm tool name as its own word, replace it
# with the full path to the build directory holding that tool. This
# ensures that we are testing the tools just built and not some random
# tools that might happen to be in the user's PATH. Thus this list
# includes every tool placed in $(LLVM_OBJ_ROOT)/$(BuildMode)/bin
# (llvm_tools_dir in lit parlance).
# Don't match 'bugpoint-' or 'clang-'.
# Don't match '/clang'.
if os.pathsep == ';':
pathext = os.environ.get('PATHEXT', '').split(';')
else:
pathext = ['']
for pattern in [r"\bbugpoint\b(?!-)", r"(?<!/)\bclang\b(?!-)",
r"\bgold\b",
r"\bllc\b", r"\blli\b",
r"\bllvm-ar\b", r"\bllvm-as\b",
r"\bllvm-bcanalyzer\b", r"\bllvm-config\b",
r"\bllvm-diff\b", r"\bllvm-dis\b",
r"\bllvm-extract\b", r"\bllvm-ld\b",
r"\bllvm-link\b", r"\bllvm-mc\b",
r"\bllvm-nm\b", r"\bllvm-prof\b",
r"\bllvm-ranlib\b", r"\bllvm-shlib\b",
r"\bllvm-stub\b", r"\bllvm2cpp\b",
# Don't match '-llvmc'.
r"(?<!-)\bllvmc\b", r"\blto\b",
# Don't match '.opt', '-opt',
# '^opt' or '/opt'.
r"\bmacho-dump\b", r"(?<!\.|-|\^|/)\bopt\b",
r"\btblgen\b", r"\bFileCheck\b",
r"\bFileUpdate\b", r"\bc-index-test\b",
r"\bfpcmp\b", r"\bllvm-PerfectShuffle\b",
# Handle these specially as they are strings searched
# for during testing.
r"\| \bcount\b", r"\| \bnot\b"]:
# Extract the tool name from the pattern. This relies on the tool
# name being surrounded by \b word match operators. If the
# pattern starts with "| ", include it in the string to be
# substituted.
substitution = re.sub(r"^(\\)?((\| )?)\W+b([0-9A-Za-z-_]+)\\b\W*$",
r"\2" + llvm_tools_dir + "/" + r"\4",
pattern)
for ext in pathext:
substitution_ext = substitution + ext
if os.path.exists(substitution_ext):
substitution = substitution_ext
break
config.substitutions.append((pattern, substitution))
excludes = []
# Provide target_triple for use in XFAIL and XTARGET.
##config.target_triple = site_exp['target_triplet']
import os
def inferCling(PATH):
# Determine which cling to use.
cling = os.getenv('CLING')
# If the user set cling in the environment, definitely use that and don't
# try to validate.
if cling:
return cling
# Otherwise look in the path.
cling = lit.util.which('cling', PATH)
if not cling:
lit_config.fatal("couldn't find 'cling' program, try setting "
"CLING in your environment")
return cling
# When running under valgrind, we mangle '-vg' onto the end of the triple so we
# can check it with XFAIL and XTARGET.
if lit_config.useValgrind:
config.target_triple += '-vg'
config.cling = inferCling(getattr(config, 'llvm_tools_dir', None)).replace('\\', '/')
if not lit_config.quiet:
lit_config.note('using cling: %r' % config.cling)
#Start cling with nologo
config.substitutions.append( ('%cling', config.cling + ' --nologo') )
if not os.getenv('CLING'):
# Add a substitution for the builds generated include dir before install
incDir = os.path.join(config.llvm_obj_root, 'tools', 'clang', 'include')
config.substitutions.append( ('%built_cling', config.cling + ' --nologo -I%s'
% os.path.normpath(incDir)) )
if not lit_config.quiet:
lit_config.note('Running tests from build tree')
else:
config.substitutions.append( ('%built_cling', config.cling + ' --nologo') )
if not lit_config.quiet:
lit_config.note('Running tests from installation')
#Don't add tests to history
os.environ['CLING_NOHISTORY'] = '1'
# FIXME: Find nicer way to prohibit this.
config.substitutions.append(
(' cling ', """*** Do not use 'cling' in tests, use '%cling'. ***""") )
# Provide on_clone hook for reading 'dg.exp'.
import os
simpleLibData = re.compile(r"""load_lib llvm.exp
RunLLVMTests \[lsort \[glob -nocomplain \$srcdir/\$subdir/\*\.(.*)\]\]""",
re.MULTILINE)
conditionalLibData = re.compile(r"""load_lib llvm.exp
if.*\[ ?(llvm[^ ]*) ([^ ]*) ?\].*{
*RunLLVMTests \[lsort \[glob -nocomplain \$srcdir/\$subdir/\*\.(.*)\]\]
\}""", re.MULTILINE)
def on_clone(parent, cfg, for_path):
def addSuffixes(match):
if match[0] == '{' and match[-1] == '}':
cfg.suffixes = ['.' + s for s in match[1:-1].split(',')]
else:
cfg.suffixes = ['.' + match]
libPath = os.path.join(os.path.dirname(for_path),
'dg.exp')
if not os.path.exists(libPath):
cfg.unsupported = True
return
# Reset unsupported, in case we inherited it.
cfg.unsupported = False
lib = open(libPath).read().strip()
# Check for a simple library.
m = simpleLibData.match(lib)
if m:
addSuffixes(m.group(1))
return
# Check for a conditional test set.
m = conditionalLibData.match(lib)
if m:
funcname,arg,match = m.groups()
addSuffixes(match)
func = globals().get(funcname)
if not func:
lit_config.error('unsupported predicate %r' % funcname)
elif not func(arg):
cfg.unsupported = True
return
# Otherwise, give up.
lit_config.error('unable to understand %r:\n%s' % (libPath, lib))
config.on_clone = on_clone
### Features
# Shell execution
if platform.system() not in ['Windows'] or lit_config.getBashPath() != '':
config.available_features.add('shell')
# Loadable module
# FIXME: This should be supplied by Makefile or autoconf.
#if sys.platform in ['win32', 'cygwin']:
# loadable_module = (config.enable_shared == 1)
#else:
# loadable_module = True
#
#if loadable_module:
# config.available_features.add('loadable_module')