| # SPDX-License-Identifier: Apache-2.0 |
| # Copyright 2012-2022 The Meson development team |
| |
| from __future__ import annotations |
| |
| from .. import mlog |
| from ..mesonlib import ( |
| EnvironmentException, |
| Popen_safe, Popen_safe_logged, join_args, search_version |
| ) |
| |
| import re |
| import shlex |
| import typing as T |
| |
| if T.TYPE_CHECKING: |
| from .linkers import DynamicLinker, GnuDynamicLinker |
| from ..environment import Environment |
| from ..compilers import Compiler |
| from ..mesonlib import MachineChoice |
| |
| defaults: T.Dict[str, T.List[str]] = {} |
| defaults['static_linker'] = ['ar', 'gar'] |
| defaults['vs_static_linker'] = ['lib'] |
| defaults['clang_cl_static_linker'] = ['llvm-lib'] |
| defaults['cuda_static_linker'] = ['nvlink'] |
| defaults['gcc_static_linker'] = ['gcc-ar'] |
| defaults['clang_static_linker'] = ['llvm-ar'] |
| |
| def __failed_to_detect_linker(compiler: T.List[str], args: T.List[str], stdout: str, stderr: str) -> 'T.NoReturn': |
| msg = 'Unable to detect linker for compiler `{}`\nstdout: {}\nstderr: {}'.format( |
| join_args(compiler + args), stdout, stderr) |
| raise EnvironmentException(msg) |
| |
| |
| def guess_win_linker(env: 'Environment', compiler: T.List[str], comp_class: T.Type['Compiler'], |
| comp_version: str, for_machine: MachineChoice, *, |
| use_linker_prefix: bool = True, invoked_directly: bool = True, |
| extra_args: T.Optional[T.List[str]] = None) -> 'DynamicLinker': |
| from . import linkers |
| env.coredata.add_lang_args(comp_class.language, comp_class, for_machine, env) |
| |
| # Explicitly pass logo here so that we can get the version of link.exe |
| if not use_linker_prefix or comp_class.LINKER_PREFIX is None: |
| check_args = ['/logo', '--version'] |
| elif isinstance(comp_class.LINKER_PREFIX, str): |
| check_args = [comp_class.LINKER_PREFIX + '/logo', comp_class.LINKER_PREFIX + '--version'] |
| else: # list |
| check_args = comp_class.LINKER_PREFIX + ['/logo'] + comp_class.LINKER_PREFIX + ['--version'] |
| |
| check_args += env.coredata.get_external_link_args(for_machine, comp_class.language) |
| |
| override: T.List[str] = [] |
| value = env.lookup_binary_entry(for_machine, comp_class.language + '_ld') |
| if value is not None: |
| override = comp_class.use_linker_args(value[0], comp_version) |
| check_args += override |
| elif 'lld-link' in compiler: |
| override = comp_class.use_linker_args('lld-link', comp_version) |
| check_args += override |
| |
| if extra_args is not None: |
| check_args.extend(extra_args) |
| |
| p, o, _ = Popen_safe(compiler + check_args) |
| if 'LLD' in o.split('\n', maxsplit=1)[0]: |
| if '(compatible with GNU linkers)' in o: |
| return linkers.LLVMDynamicLinker( |
| compiler, for_machine, comp_class.LINKER_PREFIX, |
| override, version=search_version(o)) |
| elif not invoked_directly: |
| return linkers.ClangClDynamicLinker( |
| for_machine, override, exelist=compiler, prefix=comp_class.LINKER_PREFIX, |
| version=search_version(o), direct=False, machine=None) |
| |
| if value is not None and invoked_directly: |
| compiler = value |
| # We've already handled the non-direct case above |
| |
| p, o, e = Popen_safe(compiler + check_args) |
| if 'LLD' in o.split('\n', maxsplit=1)[0]: |
| return linkers.ClangClDynamicLinker( |
| for_machine, [], |
| prefix=comp_class.LINKER_PREFIX if use_linker_prefix else [], |
| exelist=compiler, version=search_version(o), direct=invoked_directly) |
| elif 'OPTLINK' in o: |
| # Optlink's stdout *may* begin with a \r character. |
| return linkers.OptlinkDynamicLinker(compiler, for_machine, version=search_version(o)) |
| elif o.startswith('Microsoft') or e.startswith('Microsoft'): |
| out = o or e |
| match = re.search(r'.*(X86|X64|ARM|ARM64).*', out) |
| if match: |
| target = str(match.group(1)) |
| else: |
| target = 'x86' |
| |
| return linkers.MSVCDynamicLinker( |
| for_machine, [], machine=target, exelist=compiler, |
| prefix=comp_class.LINKER_PREFIX if use_linker_prefix else [], |
| version=search_version(out), direct=invoked_directly) |
| elif 'GNU coreutils' in o: |
| import shutil |
| fullpath = shutil.which(compiler[0]) |
| raise EnvironmentException( |
| f"Found GNU link.exe instead of MSVC link.exe in {fullpath}.\n" |
| "This link.exe is not a linker.\n" |
| "You may need to reorder entries to your %PATH% variable to resolve this.") |
| __failed_to_detect_linker(compiler, check_args, o, e) |
| |
| def guess_nix_linker(env: 'Environment', compiler: T.List[str], comp_class: T.Type['Compiler'], |
| comp_version: str, for_machine: MachineChoice, *, |
| extra_args: T.Optional[T.List[str]] = None) -> 'DynamicLinker': |
| """Helper for guessing what linker to use on Unix-Like OSes. |
| |
| :compiler: Invocation to use to get linker |
| :comp_class: The Compiler Type (uninstantiated) |
| :comp_version: The compiler version string |
| :for_machine: which machine this linker targets |
| :extra_args: Any additional arguments required (such as a source file) |
| """ |
| from . import linkers |
| env.coredata.add_lang_args(comp_class.language, comp_class, for_machine, env) |
| extra_args = extra_args or [] |
| |
| ldflags = env.coredata.get_external_link_args(for_machine, comp_class.language) |
| extra_args += comp_class._unix_args_to_native(ldflags, env.machines[for_machine]) |
| |
| if isinstance(comp_class.LINKER_PREFIX, str): |
| check_args = [comp_class.LINKER_PREFIX + '--version'] + extra_args |
| else: |
| check_args = comp_class.LINKER_PREFIX + ['--version'] + extra_args |
| |
| override: T.List[str] = [] |
| value = env.lookup_binary_entry(for_machine, comp_class.language + '_ld') |
| if value is not None: |
| override = comp_class.use_linker_args(value[0], comp_version) |
| check_args += override |
| |
| mlog.debug('-----') |
| p, o, e = Popen_safe_logged(compiler + check_args, msg='Detecting linker via') |
| |
| v = search_version(o + e) |
| linker: DynamicLinker |
| if 'LLD' in o.split('\n', maxsplit=1)[0] or 'tiarmlnk' in e: |
| if isinstance(comp_class.LINKER_PREFIX, str): |
| cmd = compiler + override + [comp_class.LINKER_PREFIX + '-v'] + extra_args |
| else: |
| cmd = compiler + override + comp_class.LINKER_PREFIX + ['-v'] + extra_args |
| _, newo, newerr = Popen_safe_logged(cmd, msg='Detecting LLD linker via') |
| |
| lld_cls: T.Type[DynamicLinker] |
| if 'ld64.lld' in newerr: |
| lld_cls = linkers.LLVMLD64DynamicLinker |
| else: |
| lld_cls = linkers.LLVMDynamicLinker |
| |
| linker = lld_cls( |
| compiler, for_machine, comp_class.LINKER_PREFIX, override, version=v) |
| elif 'Snapdragon' in e and 'LLVM' in e: |
| linker = linkers.QualcommLLVMDynamicLinker( |
| compiler, for_machine, comp_class.LINKER_PREFIX, override, version=v) |
| elif e.startswith('lld-link: '): |
| # The LLD MinGW frontend didn't respond to --version before version 9.0.0, |
| # and produced an error message about failing to link (when no object |
| # files were specified), instead of printing the version number. |
| # Let's try to extract the linker invocation command to grab the version. |
| |
| _, o, e = Popen_safe(compiler + check_args + ['-v']) |
| |
| try: |
| linker_cmd = re.match(r'.*\n(.*?)\nlld-link: ', e, re.DOTALL).group(1) |
| linker_cmd = shlex.split(linker_cmd)[0] |
| except (AttributeError, IndexError, ValueError): |
| pass |
| else: |
| _, o, e = Popen_safe([linker_cmd, '--version']) |
| v = search_version(o) |
| |
| linker = linkers.LLVMDynamicLinker(compiler, for_machine, comp_class.LINKER_PREFIX, override, version=v) |
| # detect xtools first, bug #10805 |
| elif 'xtools-' in o.split('\n', maxsplit=1)[0]: |
| xtools = o.split(' ', maxsplit=1)[0] |
| v = xtools.split('-', maxsplit=2)[1] |
| linker = linkers.AppleDynamicLinker(compiler, for_machine, comp_class.LINKER_PREFIX, override, version=v) |
| # First might be apple clang, second is for real gcc, the third is icc. |
| # Note that "ld: unknown option: " sometimes instead is "ld: unknown options:". |
| elif e.endswith('(use -v to see invocation)\n') or 'macosx_version' in e or 'ld: unknown option' in e: |
| if isinstance(comp_class.LINKER_PREFIX, str): |
| cmd = compiler + [comp_class.LINKER_PREFIX + '-v'] + extra_args |
| else: |
| cmd = compiler + comp_class.LINKER_PREFIX + ['-v'] + extra_args |
| _, newo, newerr = Popen_safe_logged(cmd, msg='Detecting Apple linker via') |
| |
| for line in newerr.split('\n'): |
| if 'PROJECT:ld' in line or 'PROJECT:dyld' in line: |
| v = line.split('-')[1] |
| break |
| else: |
| __failed_to_detect_linker(compiler, check_args, o, e) |
| linker = linkers.AppleDynamicLinker(compiler, for_machine, comp_class.LINKER_PREFIX, override, version=v) |
| elif 'GNU' in o or 'GNU' in e: |
| gnu_cls: T.Type[GnuDynamicLinker] |
| # this is always the only thing on stdout, except for swift |
| # which may or may not redirect the linker stdout to stderr |
| if o.startswith('GNU gold') or e.startswith('GNU gold'): |
| gnu_cls = linkers.GnuGoldDynamicLinker |
| elif o.startswith('mold') or e.startswith('mold'): |
| gnu_cls = linkers.MoldDynamicLinker |
| else: |
| gnu_cls = linkers.GnuBFDDynamicLinker |
| linker = gnu_cls(compiler, for_machine, comp_class.LINKER_PREFIX, override, version=v) |
| elif 'Solaris' in e or 'Solaris' in o: |
| for line in (o+e).split('\n'): |
| if 'ld: Software Generation Utilities' in line: |
| v = line.split(':')[2].lstrip() |
| break |
| else: |
| v = 'unknown version' |
| linker = linkers.SolarisDynamicLinker( |
| compiler, for_machine, comp_class.LINKER_PREFIX, override, |
| version=v) |
| elif 'ld: 0706-012 The -- flag is not recognized' in e: |
| if isinstance(comp_class.LINKER_PREFIX, str): |
| _, _, e = Popen_safe(compiler + [comp_class.LINKER_PREFIX + '-V'] + extra_args) |
| else: |
| _, _, e = Popen_safe(compiler + comp_class.LINKER_PREFIX + ['-V'] + extra_args) |
| linker = linkers.AIXDynamicLinker( |
| compiler, for_machine, comp_class.LINKER_PREFIX, override, |
| version=search_version(e)) |
| else: |
| __failed_to_detect_linker(compiler, check_args, o, e) |
| return linker |
