forked from OSchip/llvm-project
329 lines
12 KiB
Python
329 lines
12 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 subprocess
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import lit.util
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import lit.formats
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from lit.llvm import llvm_config
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from lit.llvm.subst import FindTool
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from lit.llvm.subst import ToolSubst
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# name: The name of this test suite.
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config.name = 'LLVM'
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# testFormat: The test format to use to interpret tests.
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config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
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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', '.cxx', '.test', '.txt', '.s', '.mir']
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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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config.test_exec_root = os.path.join(config.llvm_obj_root, 'test')
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# Tweak the PATH to include the tools dir.
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llvm_config.with_environment('PATH', config.llvm_tools_dir, append_path=True)
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# Propagate some variables from the host environment.
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llvm_config.with_system_environment(
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['HOME', 'INCLUDE', 'LIB', 'TMP', 'TEMP', 'ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH'])
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# Set up OCAMLPATH to include newly built OCaml libraries.
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top_ocaml_lib = os.path.join(config.llvm_lib_dir, 'ocaml')
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llvm_ocaml_lib = os.path.join(top_ocaml_lib, 'llvm')
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llvm_config.with_system_environment('OCAMLPATH')
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llvm_config.with_environment('OCAMLPATH', top_ocaml_lib, append_path=True)
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llvm_config.with_environment('OCAMLPATH', llvm_ocaml_lib, append_path=True)
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llvm_config.with_system_environment('CAML_LD_LIBRARY_PATH')
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llvm_config.with_environment(
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'CAML_LD_LIBRARY_PATH', llvm_ocaml_lib, append_path=True)
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# Set up OCAMLRUNPARAM to enable backtraces in OCaml tests.
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llvm_config.with_environment('OCAMLRUNPARAM', 'b')
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# Provide the path to asan runtime lib 'libclang_rt.asan_osx_dynamic.dylib' if
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# available. This is darwin specific since it's currently only needed on darwin.
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def get_asan_rtlib():
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if not 'Address' in config.llvm_use_sanitizer or \
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not 'Darwin' in config.host_os or \
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not 'x86' in config.host_triple:
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return ''
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try:
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import glob
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except:
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print('glob module not found, skipping get_asan_rtlib() lookup')
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return ''
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# The libclang_rt.asan_osx_dynamic.dylib path is obtained using the relative
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# path from the host cc.
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host_lib_dir = os.path.join(os.path.dirname(config.host_cc), '../lib')
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asan_dylib_dir_pattern = host_lib_dir + \
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'/clang/*/lib/darwin/libclang_rt.asan_osx_dynamic.dylib'
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found_dylibs = glob.glob(asan_dylib_dir_pattern)
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if len(found_dylibs) != 1:
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return ''
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return found_dylibs[0]
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llvm_config.use_default_substitutions()
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# Add site-specific substitutions.
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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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lli_args = []
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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|windows-gnu|windows-msvc', config.host_triple):
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lli_args = ['-mtriple=' + config.host_triple + '-elf']
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llc_args = []
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# Similarly, have a macro to use llc with DWARF even when the host is Windows
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if re.search(r'windows-msvc', config.target_triple):
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llc_args = [' -mtriple=' +
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config.target_triple.replace('-msvc', '-gnu')]
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# Provide the path to asan runtime lib if available. On darwin, this lib needs
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# to be loaded via DYLD_INSERT_LIBRARIES before libLTO.dylib in case the files
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# to be linked contain instrumented sanitizer code.
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ld64_cmd = config.ld64_executable
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asan_rtlib = get_asan_rtlib()
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if asan_rtlib:
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ld64_cmd = 'DYLD_INSERT_LIBRARIES={} {}'.format(asan_rtlib, ld64_cmd)
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ocamlc_command = '%s ocamlc -cclib -L%s %s' % (
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config.ocamlfind_executable, config.llvm_lib_dir, config.ocaml_flags)
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ocamlopt_command = 'true'
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if config.have_ocamlopt:
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ocamlopt_command = '%s ocamlopt -cclib -L%s -cclib -Wl,-rpath,%s %s' % (
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config.ocamlfind_executable, config.llvm_lib_dir, config.llvm_lib_dir, config.ocaml_flags)
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opt_viewer_cmd = '%s %s/tools/opt-viewer/opt-viewer.py' % (sys.executable, config.llvm_src_root)
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tools = [
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ToolSubst('%lli', FindTool('lli'), post='.', extra_args=lli_args),
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ToolSubst('%llc_dwarf', FindTool('llc'), extra_args=llc_args),
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ToolSubst('%go', config.go_executable, unresolved='ignore'),
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ToolSubst('%gold', config.gold_executable, unresolved='ignore'),
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ToolSubst('%ld64', ld64_cmd, unresolved='ignore'),
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ToolSubst('%ocamlc', ocamlc_command, unresolved='ignore'),
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ToolSubst('%ocamlopt', ocamlopt_command, unresolved='ignore'),
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ToolSubst('%opt-viewer', opt_viewer_cmd),
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ToolSubst('%llvm-objcopy', FindTool('llvm-objcopy')),
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ToolSubst('%llvm-strip', FindTool('llvm-strip')),
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]
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# FIXME: Why do we have both `lli` and `%lli` that do slightly different things?
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tools.extend([
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'dsymutil', 'lli', 'lli-child-target', 'llvm-ar', 'llvm-as',
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'llvm-bcanalyzer', 'llvm-config', 'llvm-cov', 'llvm-cxxdump', 'llvm-cvtres',
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'llvm-diff', 'llvm-dis', 'llvm-dwarfdump', 'llvm-exegesis', 'llvm-extract',
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'llvm-isel-fuzzer', 'llvm-opt-fuzzer', 'llvm-lib', 'llvm-link', 'llvm-lto',
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'llvm-lto2', 'llvm-mc', 'llvm-mca', 'llvm-modextract', 'llvm-nm',
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'llvm-objcopy', 'llvm-objdump', 'llvm-pdbutil', 'llvm-profdata',
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'llvm-ranlib', 'llvm-readelf', 'llvm-readobj', 'llvm-rtdyld', 'llvm-size',
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'llvm-split', 'llvm-strings', 'llvm-strip', 'llvm-tblgen', 'llvm-undname',
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'llvm-c-test', 'llvm-cxxfilt', 'llvm-xray', 'yaml2obj', 'obj2yaml',
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'yaml-bench', 'verify-uselistorder', 'bugpoint', 'llc', 'llvm-symbolizer',
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'opt', 'sancov', 'sanstats'])
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# The following tools are optional
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tools.extend([
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ToolSubst('llvm-go', unresolved='ignore'),
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ToolSubst('llvm-mt', unresolved='ignore'),
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ToolSubst('Kaleidoscope-Ch3', unresolved='ignore'),
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ToolSubst('Kaleidoscope-Ch4', unresolved='ignore'),
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ToolSubst('Kaleidoscope-Ch5', unresolved='ignore'),
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ToolSubst('Kaleidoscope-Ch6', unresolved='ignore'),
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ToolSubst('Kaleidoscope-Ch7', unresolved='ignore'),
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ToolSubst('Kaleidoscope-Ch8', unresolved='ignore')])
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llvm_config.add_tool_substitutions(tools, config.llvm_tools_dir)
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# Targets
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config.targets = frozenset(config.targets_to_build.split())
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for arch in config.targets_to_build.split():
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config.available_features.add(arch.lower() + '-registered-target')
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# Features
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known_arches = ["x86_64", "mips64", "ppc64", "aarch64"]
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if (config.host_ldflags.find("-m32") < 0
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and any(config.llvm_host_triple.startswith(x) for x in known_arches)):
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config.available_features.add("llvm-64-bits")
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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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config.available_features.add('not_COFF')
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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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# Static libraries are not built if BUILD_SHARED_LIBS is ON.
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if not config.build_shared_libs and not config.link_llvm_dylib:
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config.available_features.add('static-libs')
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def have_cxx_shared_library():
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readobj_exe = lit.util.which('llvm-readobj', config.llvm_tools_dir)
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if not readobj_exe:
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print('llvm-readobj not found')
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return False
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try:
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readobj_cmd = subprocess.Popen(
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[readobj_exe, '-needed-libs', readobj_exe], stdout=subprocess.PIPE)
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except OSError:
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print('could not exec llvm-readobj')
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return False
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readobj_out = readobj_cmd.stdout.read().decode('ascii')
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readobj_cmd.wait()
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regex = re.compile(r'(libc\+\+|libstdc\+\+|msvcp).*\.(so|dylib|dll)')
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needed_libs = False
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for line in readobj_out.splitlines():
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if 'NeededLibraries [' in line:
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needed_libs = True
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if ']' in line:
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needed_libs = False
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if needed_libs and regex.search(line.lower()):
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return True
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return False
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if have_cxx_shared_library():
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config.available_features.add('cxx-shared-library')
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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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# LLVM can be configured with an empty default triple
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# Some tests are "generic" and require a valid default triple
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if config.target_triple:
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config.available_features.add('default_triple')
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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' + config.llvm_shlib_ext)):
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return False
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ld_cmd = subprocess.Popen(
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[config.gold_executable, '--help'], stdout=subprocess.PIPE, env={'LANG': 'C'})
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ld_out = ld_cmd.stdout.read().decode()
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ld_cmd.wait()
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if not '-plugin' in ld_out:
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return False
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# check that the used emulations are supported.
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emu_line = [l for l in ld_out.split('\n') if 'supported emulations' in l]
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if len(emu_line) != 1:
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return False
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emu_line = emu_line[0]
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fields = emu_line.split(':')
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if len(fields) != 3:
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return False
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emulations = fields[2].split()
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if 'elf_x86_64' not in emulations:
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return False
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if 'elf32ppc' in emulations:
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config.available_features.add('ld_emu_elf32ppc')
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ld_version = subprocess.Popen(
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[config.gold_executable, '--version'], stdout=subprocess.PIPE, env={'LANG': 'C'})
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if not 'GNU gold' in ld_version.stdout.read().decode():
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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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def have_ld64_plugin_support():
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if not config.llvm_tool_lto_build or config.ld64_executable == '':
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return False
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ld_cmd = subprocess.Popen(
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[config.ld64_executable, '-v'], stderr=subprocess.PIPE)
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ld_out = ld_cmd.stderr.read().decode()
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ld_cmd.wait()
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if 'ld64' not in ld_out or 'LTO' not in ld_out:
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return False
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return True
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if have_ld64_plugin_support():
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config.available_features.add('ld64_plugin')
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# Ask llvm-config about asserts and global-isel.
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llvm_config.feature_config(
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[('--assertion-mode', {'ON': 'asserts'}),
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('--has-global-isel', {'ON': 'global-isel'})])
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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.*-(windows-gnu|windows-msvc)', config.target_triple):
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config.available_features.add('debug_frame')
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if config.have_libxar:
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config.available_features.add('xar')
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if config.enable_threads:
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config.available_features.add('thread_support')
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if config.llvm_libxml2_enabled == '1':
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config.available_features.add('libxml2')
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if config.have_opt_viewer_modules:
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config.available_features.add('have_opt_viewer_modules')
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