forked from OSchip/llvm-project
276 lines
11 KiB
Python
276 lines
11 KiB
Python
# -*- Python -*-
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import os
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import platform
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import re
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import subprocess
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import locale
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import lit.formats
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import lit.util
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# Configuration file for the 'lit' test runner.
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# name: The name of this test suite.
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config.name = 'lld'
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# Tweak PATH for Win32
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if sys.platform in ['win32']:
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# Seek sane tools in directories and set to $PATH.
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path = getattr(config, 'lit_tools_dir', None)
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path = lit_config.getToolsPath(path,
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config.environment['PATH'],
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['cmp.exe', 'grep.exe', 'sed.exe'])
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if path is not None:
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path = os.path.pathsep.join((path,
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config.environment['PATH']))
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config.environment['PATH'] = path
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# Choose between lit's internal shell pipeline runner and a real shell. If
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# LIT_USE_INTERNAL_SHELL is in the environment, we use that as an override.
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use_lit_shell = os.environ.get("LIT_USE_INTERNAL_SHELL")
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if use_lit_shell:
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# 0 is external, "" is default, and everything else is internal.
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execute_external = (use_lit_shell == "0")
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else:
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# Otherwise we default to internal on Windows and external elsewhere, as
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# bash on Windows is usually very slow.
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execute_external = (not sys.platform in ['win32'])
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# testFormat: The test format to use to interpret tests.
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#
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# For now we require '&&' between commands, until they get globally killed and
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# the test runner updated.
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config.test_format = lit.formats.ShTest(execute_external)
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# suffixes: A list of file extensions to treat as test files.
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config.suffixes = ['.ll', '.s', '.test', '.yaml', '.objtxt']
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# excludes: A list of directories to exclude from the testsuite. The 'Inputs'
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# subdirectories contain auxiliary inputs for various tests in their parent
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# directories.
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config.excludes = ['Inputs']
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# test_source_root: The root path where tests are located.
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config.test_source_root = os.path.dirname(__file__)
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# test_exec_root: The root path where tests should be run.
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lld_obj_root = getattr(config, 'lld_obj_root', None)
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if lld_obj_root is not None:
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config.test_exec_root = os.path.join(lld_obj_root, 'test')
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# Set llvm_{src,obj}_root for use by others.
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config.llvm_src_root = getattr(config, 'llvm_src_root', None)
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config.llvm_obj_root = getattr(config, 'llvm_obj_root', None)
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# Tweak the PATH to include the tools dir and the scripts dir.
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if lld_obj_root is not None:
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lld_tools_dir = getattr(config, 'lld_tools_dir', None)
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if not lld_tools_dir:
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lit_config.fatal('No LLD tools dir set!')
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llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
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if not llvm_tools_dir:
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lit_config.fatal('No LLVM tools dir set!')
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path = os.path.pathsep.join((lld_tools_dir, llvm_tools_dir, config.environment['PATH']))
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path = os.path.pathsep.join((os.path.join(getattr(config, 'llvm_src_root', None),'test','Scripts'),path))
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config.environment['PATH'] = path
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lld_libs_dir = getattr(config, 'lld_libs_dir', None)
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if not lld_libs_dir:
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lit_config.fatal('No LLD libs dir set!')
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llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
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if not llvm_libs_dir:
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lit_config.fatal('No LLVM libs dir set!')
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path = os.path.pathsep.join((lld_libs_dir, llvm_libs_dir,
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config.environment.get('LD_LIBRARY_PATH','')))
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config.environment['LD_LIBRARY_PATH'] = path
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# Propagate LLVM_SRC_ROOT into the environment.
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config.environment['LLVM_SRC_ROOT'] = getattr(config, 'llvm_src_root', '')
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# Propagate PYTHON_EXECUTABLE into the environment
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config.environment['PYTHON_EXECUTABLE'] = getattr(config, 'python_executable',
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'')
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###
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# Check that the object root is known.
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if config.test_exec_root is None:
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# Otherwise, we haven't loaded the site specific configuration (the user is
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# probably trying to run on a test file directly, and either the site
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# configuration hasn't been created by the build system, or we are in an
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# out-of-tree build situation).
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# Check for 'lld_site_config' user parameter, and use that if available.
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site_cfg = lit_config.params.get('lld_site_config', None)
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if site_cfg and os.path.exists(site_cfg):
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lit_config.load_config(config, site_cfg)
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raise SystemExit
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# Try to detect the situation where we are using an out-of-tree build by
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# looking for 'llvm-config'.
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#
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# FIXME: I debated (i.e., wrote and threw away) adding logic to
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# automagically generate the lit.site.cfg if we are in some kind of fresh
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# build situation. This means knowing how to invoke the build system though,
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# and I decided it was too much magic. We should solve this by just having
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# the .cfg files generated during the configuration step.
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llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
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if not llvm_config:
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lit_config.fatal('No site specific configuration available!')
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# Get the source and object roots.
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llvm_src_root = subprocess.check_output(['llvm-config', '--src-root']).strip()
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llvm_obj_root = subprocess.check_output(['llvm-config', '--obj-root']).strip()
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lld_src_root = os.path.join(llvm_src_root, "tools", "lld")
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lld_obj_root = os.path.join(llvm_obj_root, "tools", "lld")
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# Validate that we got a tree which points to here, using the standard
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# tools/lld layout.
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this_src_root = os.path.dirname(config.test_source_root)
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if os.path.realpath(lld_src_root) != os.path.realpath(this_src_root):
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lit_config.fatal('No site specific configuration available!')
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# Check that the site specific configuration exists.
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site_cfg = os.path.join(lld_obj_root, 'test', 'lit.site.cfg')
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if not os.path.exists(site_cfg):
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lit_config.fatal(
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'No site specific configuration available! You may need to '
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'run "make test" in your lld build directory.')
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# Okay, that worked. Notify the user of the automagic, and reconfigure.
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lit_config.note('using out-of-tree build at %r' % lld_obj_root)
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lit_config.load_config(config, site_cfg)
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raise SystemExit
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# For each occurrence of a lld tool name as its own word, replace it
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# with the full path to the build directory holding that tool. This
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# ensures that we are testing the tools just built and not some random
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# tools that might happen to be in the user's PATH.
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# Regex assertions to reject neighbor hyphens/dots (seen in some tests).
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# For example, we want to prefix 'lld' and 'ld.lld' but not the 'lld' inside
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# of 'ld.lld'.
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NoPreJunk = r"(?<!(-|\.|/))"
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NoPostJunk = r"(?!(-|\.))"
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config.substitutions.append( (r"\bld.lld\b", 'ld.lld --full-shutdown') )
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tool_patterns = [r"\bFileCheck\b",
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r"\bnot\b",
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NoPreJunk + r"\blld\b" + NoPostJunk,
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r"\bld.lld\b",
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r"\blld-link\b",
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r"\bllvm-as\b",
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r"\bllvm-mc\b",
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r"\bllvm-nm\b",
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r"\bllvm-objdump\b",
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r"\bllvm-pdbutil\b",
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r"\bllvm-readobj\b",
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r"\bobj2yaml\b",
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r"\byaml2obj\b"]
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for pattern in tool_patterns:
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# Extract the tool name from the pattern. This relies on the tool
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# name being surrounded by \b word match operators. If the
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# pattern starts with "| ", include it in the string to be
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# substituted.
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tool_match = re.match(r"^(\\)?((\| )?)\W+b([0-9A-Za-z-_\.]+)\\b\W*$",
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pattern)
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tool_pipe = tool_match.group(2)
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tool_name = tool_match.group(4)
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tool_path = lit.util.which(tool_name, config.environment['PATH'])
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if not tool_path:
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# Warn, but still provide a substitution.
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lit_config.note('Did not find ' + tool_name + ' in ' + path)
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tool_path = llvm_tools_dir + '/' + tool_name
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config.substitutions.append((pattern, tool_pipe + tool_path))
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# Add site-specific substitutions.
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config.substitutions.append( ('%python', config.python_executable) )
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###
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# When running under valgrind, we mangle '-vg' onto the end of the triple so we
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# can check it with XFAIL and XTARGET.
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if lit_config.useValgrind:
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config.target_triple += '-vg'
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# Shell execution
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if execute_external:
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config.available_features.add('shell')
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# zlib compression library
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if config.have_zlib:
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config.available_features.add("zlib")
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# Running on Darwin OS
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if platform.system() in ['Darwin']:
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config.available_features.add('system-linker-mach-o')
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# Running on ELF based *nix
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if platform.system() in ['FreeBSD', 'Linux']:
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config.available_features.add('system-linker-elf')
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# Running on Windows
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if platform.system() in ['Windows']:
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config.available_features.add('system-windows')
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# Set if host-cxxabi's demangler can handle target's symbols.
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if platform.system() not in ['Windows']:
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config.available_features.add('demangler')
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# llvm-config knows whether it is compiled with asserts (and)
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# whether we are operating in release/debug mode.
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import subprocess
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try:
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llvm_config_cmd = \
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subprocess.Popen([os.path.join(llvm_tools_dir, 'llvm-config'),
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'--build-mode', '--assertion-mode', '--targets-built'],
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stdout = subprocess.PIPE)
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except OSError as why:
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print("Could not find llvm-config in " + llvm_tools_dir)
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exit(42)
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llvm_config_output = llvm_config_cmd.stdout.read().decode('utf_8')
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llvm_config_output_list = llvm_config_output.split("\n")
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if re.search(r'DEBUG', llvm_config_output_list[0]):
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config.available_features.add('debug')
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if re.search(r'ON', llvm_config_output_list[1]):
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config.available_features.add('asserts')
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archs = llvm_config_output_list[2]
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if re.search(r'AArch64', archs):
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config.available_features.add('aarch64')
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if re.search(r'AMDGPU', archs):
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config.available_features.add('amdgpu')
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if re.search(r'ARM', archs):
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config.available_features.add('arm')
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if re.search(r'AVR', archs):
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config.available_features.add('avr')
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if re.search(r'Mips', archs):
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config.available_features.add('mips')
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if re.search(r'PowerPC', archs):
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config.available_features.add('ppc')
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if re.search(r'Sparc', archs):
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config.available_features.add('sparc')
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if re.search(r'X86', archs):
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config.available_features.add('x86')
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llvm_config_cmd.wait()
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# Set a fake constant version so that we get consitent output.
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config.environment['LLD_VERSION'] = 'LLD 1.0'
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# Indirectly check if the mt.exe Microsoft utility exists by searching for
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# cvtres, which always accompanies it. Alternatively, check if we can use
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# libxml2 to merge manifests.
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if (lit.util.which('cvtres', config.environment['PATH'])) or \
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(config.llvm_libxml2_enabled == "1"):
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config.available_features.add('manifest_tool')
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if (config.llvm_libxml2_enabled == "1"):
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config.available_features.add('libxml2')
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