forked from OSchip/llvm-project
373 lines
14 KiB
Python
373 lines
14 KiB
Python
# -*- Python -*-
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# Configuration file for the 'lit' test runner.
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import os
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import sys
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import re
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import platform
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import lit.util
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import lit.formats
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# name: The name of this test suite.
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config.name = 'LLVM'
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# Tweak PATH for Win32 to decide to use bash.exe or not.
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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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config.test_format = lit.formats.ShTest(execute_external)
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# suffixes: A list of file extensions to treat as test files. This is overriden
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# by individual lit.local.cfg files in the test subdirectories.
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config.suffixes = ['.ll', '.c', '.cpp', '.test', '.txt', '.s']
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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', 'CMakeLists.txt', 'README.txt', 'LICENSE.txt']
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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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llvm_obj_root = getattr(config, 'llvm_obj_root', None)
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if llvm_obj_root is not None:
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config.test_exec_root = os.path.join(llvm_obj_root, 'test')
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# Tweak the PATH to include the tools dir.
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if llvm_obj_root is not None:
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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((llvm_tools_dir, config.environment['PATH']))
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config.environment['PATH'] = path
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# Propagate 'HOME' through the environment.
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if 'HOME' in os.environ:
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config.environment['HOME'] = os.environ['HOME']
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# Propagate 'INCLUDE' through the environment.
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if 'INCLUDE' in os.environ:
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config.environment['INCLUDE'] = os.environ['INCLUDE']
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# Propagate 'LIB' through the environment.
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if 'LIB' in os.environ:
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config.environment['LIB'] = os.environ['LIB']
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# Propagate the temp directory. Windows requires this because it uses \Windows\
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# if none of these are present.
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if 'TMP' in os.environ:
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config.environment['TMP'] = os.environ['TMP']
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if 'TEMP' in os.environ:
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config.environment['TEMP'] = os.environ['TEMP']
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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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# Propagate path to symbolizer for ASan/MSan.
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for symbolizer in ['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH']:
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if symbolizer in os.environ:
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config.environment[symbolizer] = os.environ[symbolizer]
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# Propagate options for sanitizers.
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for options in ['ASAN_OPTIONS', 'UBSAN_OPTIONS']:
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if options in os.environ:
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config.environment[options] = os.environ[options]
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###
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import os
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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 'llvm_site_config' user parameter, and use that if available.
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site_cfg = lit_config.params.get('llvm_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
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# though, and I decided it was too much magic.
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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 = lit.util.capture(['llvm-config', '--src-root']).strip()
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llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
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# Validate that we got a tree which points to here.
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this_src_root = os.path.dirname(config.test_source_root)
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if os.path.realpath(llvm_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(llvm_obj_root, 'test', 'lit.site.cfg')
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if not os.path.exists(site_cfg):
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lit_config.fatal('No site specific configuration available!')
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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' % llvm_obj_root)
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lit_config.load_config(config, site_cfg)
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raise SystemExit
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###
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# Provide a command line for mcjit tests
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lli_mcjit = 'lli -use-mcjit'
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# The target triple used by default by lli is the process target triple (some
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# triple appropriate for generating code for the current process) but because
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# we don't support COFF in MCJIT well enough for the tests, force ELF format on
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# Windows. FIXME: the process target triple should be used here, but this is
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# difficult to obtain on Windows.
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if re.search(r'cygwin|mingw32|win32', config.host_triple):
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lli_mcjit += ' -mtriple='+config.host_triple+'-elf'
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config.substitutions.append( ('%lli_mcjit', lli_mcjit) )
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# Similarly, have a macro to use llc with DWARF even when the host is win32.
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llc_dwarf = 'llc'
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if re.search(r'win32', config.target_triple):
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llc_dwarf += ' -mtriple='+config.target_triple.replace('-win32', '-mingw32')
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config.substitutions.append( ('%llc_dwarf', llc_dwarf) )
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# Process jit implementation option
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jit_impl_cfg = lit_config.params.get('jit_impl', None)
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if jit_impl_cfg == 'mcjit':
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# When running with mcjit, mangle -mcjit into target triple
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# and add -use-mcjit flag to lli invocation
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if 'i386' in config.target_triple or 'i686' in config.target_triple:
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config.target_triple += jit_impl_cfg + '-ia32'
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elif 'x86_64' in config.target_triple:
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config.target_triple += jit_impl_cfg + '-ia64'
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else:
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config.target_triple += jit_impl_cfg
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config.substitutions.append( ('%lli', 'lli -use-mcjit') )
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else:
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config.substitutions.append( ('%lli', 'lli') )
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# Add site-specific substitutions.
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config.substitutions.append( ('%ocamlopt', config.ocamlopt_executable) )
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config.substitutions.append( ('%llvmshlibdir', config.llvm_shlib_dir) )
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config.substitutions.append( ('%shlibext', config.llvm_shlib_ext) )
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config.substitutions.append( ('%exeext', config.llvm_exe_ext) )
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config.substitutions.append( ('%python', config.python_executable) )
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# For each occurrence of an llvm 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. Thus this list
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# includes every tool placed in $(LLVM_OBJ_ROOT)/$(BuildMode)/bin
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# (llvm_tools_dir in lit parlance).
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# Avoid matching RUN line fragments that are actually part of
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# path names or options or whatever.
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# The regex is a pre-assertion to avoid matching a preceding
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# dot, hyphen, carat, or slash (.foo, -foo, etc.). Some patterns
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# also have a post-assertion to not match a trailing hyphen (foo-).
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NOJUNK = r"(?<!\.|-|\^|/)"
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for pattern in [r"\bbugpoint\b(?!-)",
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NOJUNK + r"\bllc\b",
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r"\blli\b",
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r"\bllvm-ar\b",
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r"\bllvm-as\b",
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r"\bllvm-bcanalyzer\b",
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r"\bllvm-config\b",
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r"\bllvm-cov\b",
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r"\bllvm-diff\b",
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r"\bllvm-dis\b",
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r"\bllvm-dwarfdump\b",
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r"\bllvm-extract\b",
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r"\bllvm-link\b",
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r"\bllvm-lto\b",
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r"\bllvm-mc\b",
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r"\bllvm-mcmarkup\b",
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r"\bllvm-nm\b",
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r"\bllvm-objdump\b",
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r"\bllvm-profdata\b",
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r"\bllvm-ranlib\b",
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r"\bllvm-readobj\b",
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r"\bllvm-rtdyld\b",
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r"\bllvm-size\b",
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r"\bllvm-tblgen\b",
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r"\bllvm-vtabledump\b",
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r"\bllvm-c-test\b",
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r"\bmacho-dump\b",
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NOJUNK + r"\bopt\b",
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r"\bFileCheck\b",
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r"\bobj2yaml\b",
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r"\byaml2obj\b",
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r"\bverify-uselistorder\b",
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# Handle these specially as they are strings searched
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# for during testing.
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r"\| \bcount\b",
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r"\| \bnot\b"]:
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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, llvm_tools_dir)
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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 ' + llvm_tools_dir)
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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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### Targets
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config.targets = frozenset(config.targets_to_build.split())
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### Features
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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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# Others/can-execute.txt
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if sys.platform not in ['win32']:
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config.available_features.add('can-execute')
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# Loadable module
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# FIXME: This should be supplied by Makefile or autoconf.
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if sys.platform in ['win32', 'cygwin']:
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loadable_module = (config.enable_shared == 1)
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else:
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loadable_module = True
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if loadable_module:
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config.available_features.add('loadable_module')
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# Sanitizers.
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if config.llvm_use_sanitizer == "Address":
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config.available_features.add("asan")
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if (config.llvm_use_sanitizer == "Memory" or
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config.llvm_use_sanitizer == "MemoryWithOrigins"):
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config.available_features.add("msan")
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# Direct object generation
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if not 'hexagon' in config.target_triple:
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config.available_features.add("object-emission")
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if config.have_zlib == "1":
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config.available_features.add("zlib")
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else:
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config.available_features.add("nozlib")
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# Native compilation: host arch == target arch
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# FIXME: Consider cases that target can be executed
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# even if host_triple were different from target_triple.
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if config.host_triple == config.target_triple:
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config.available_features.add("native")
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import subprocess
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def have_ld_plugin_support():
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if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold.so')):
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return False
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ld_cmd = subprocess.Popen(['ld', '--help'], stdout = subprocess.PIPE)
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if not '-plugin' in ld_cmd.stdout.read():
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return False
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ld_cmd.wait()
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ld_version = subprocess.Popen(['ld', '--version'], stdout = subprocess.PIPE)
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if not 'GNU gold' in ld_version.stdout.read():
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return False
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ld_version.wait()
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return True
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if have_ld_plugin_support():
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config.available_features.add('ld_plugin')
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# Ask llvm-config about assertion mode.
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try:
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llvm_config_cmd = subprocess.Popen(
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[os.path.join(llvm_tools_dir, 'llvm-config'), '--assertion-mode'],
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stdout = subprocess.PIPE)
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except OSError:
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print("Could not find llvm-config in " + llvm_tools_dir)
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exit(42)
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if re.search(r'ON', llvm_config_cmd.stdout.read().decode('ascii')):
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config.available_features.add('asserts')
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llvm_config_cmd.wait()
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if 'darwin' == sys.platform:
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try:
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sysctl_cmd = subprocess.Popen(['sysctl', 'hw.optional.fma'],
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stdout = subprocess.PIPE)
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except OSError:
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print("Could not exec sysctl")
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result = sysctl_cmd.stdout.read().decode('ascii')
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if -1 != result.find("hw.optional.fma: 1"):
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config.available_features.add('fma3')
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sysctl_cmd.wait()
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# .debug_frame is not emitted for targeting Windows x64.
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if not re.match(r'^x86_64.*-(mingw32|win32)', config.target_triple):
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config.available_features.add('debug_frame')
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# Check if we should use gmalloc.
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use_gmalloc_str = lit_config.params.get('use_gmalloc', None)
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if use_gmalloc_str is not None:
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if use_gmalloc_str.lower() in ('1', 'true'):
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use_gmalloc = True
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elif use_gmalloc_str.lower() in ('', '0', 'false'):
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use_gmalloc = False
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else:
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lit_config.fatal('user parameter use_gmalloc should be 0 or 1')
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else:
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# Default to not using gmalloc
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use_gmalloc = False
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# Allow use of an explicit path for gmalloc library.
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# Will default to '/usr/lib/libgmalloc.dylib' if not set.
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gmalloc_path_str = lit_config.params.get('gmalloc_path',
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'/usr/lib/libgmalloc.dylib')
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if use_gmalloc:
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config.environment.update({'DYLD_INSERT_LIBRARIES' : gmalloc_path_str})
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