blob: 6fa6742a4ac57f48071ea1dc121b7e3dd2fcbf51 [file] [log] [blame]
# -*- Python -*-
import os
import platform
# Configuration file for the 'lit' test runner.
# name: The name of this test suite.
config.name = 'Clang'
# 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'
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']
# 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)
# 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.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 '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 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.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', 'lit.site.cfg')
if not os.path.exists(site_cfg):
lit.fatal('No site specific configuration available!')
# 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
def inferClangCC(clang, PATH):
clangcc = os.getenv('CLANGCC')
# If the user set clang in the environment, definitely use that and don't
# try to validate.
if clangcc:
return clangcc
# Otherwise try adding -cc since we expect to be looking in a build
# directory.
if clang.endswith('.exe'):
clangccName = clang[:-4] + '-cc.exe'
else:
clangccName = clang + '-cc'
clangcc = lit.util.which(clangccName, PATH)
if not clangcc:
# Otherwise ask clang.
res = lit.util.capture([clang, '-print-prog-name=clang-cc'])
res = res.strip()
if res and os.path.exists(res):
clangcc = res
if not clangcc:
lit.fatal("couldn't find 'clang-cc' program, try setting "
"CLANGCC in your environment")
return clangcc
config.clang = inferClang(config.environment['PATH'])
if not lit.quiet:
lit.note('using clang: %r' % config.clang)
config.substitutions.append( (' clang ', ' ' + config.clang + ' ') )
config.clang_cc = inferClangCC(config.clang, config.environment['PATH'])
if not lit.quiet:
lit.note('using clang-cc: %r' % config.clang_cc)
config.substitutions.append( (' clang-cc ', ' ' + config.clang_cc + ' ') )