# SPDX-License-Identifier: Apache-2.0 # Copyright 2012-2022 The Meson development team from __future__ import annotations from ..mesonlib import ( MesonException, EnvironmentException, MachineChoice, join_args, search_version, is_windows, Popen_safe, Popen_safe_logged, version_compare, windows_proof_rm, ) from ..programs import ExternalProgram from ..envconfig import BinaryTable, detect_cpu_family, detect_machine_info from .. import mlog from ..linkers import guess_win_linker, guess_nix_linker import subprocess import platform import re import shutil import tempfile import os import typing as T if T.TYPE_CHECKING: from .compilers import Compiler from .asm import ASMCompiler from .c import CCompiler from .cpp import CPPCompiler from .fortran import FortranCompiler from .rust import RustCompiler from ..linkers.linkers import StaticLinker, DynamicLinker from ..environment import Environment # Default compilers and linkers # ============================= defaults: T.Dict[str, T.List[str]] = {} # List of potential compilers. if is_windows(): # Intel C and C++ compiler is icl on Windows, but icc and icpc elsewhere. # Search for icl before cl, since Intel "helpfully" provides a # cl.exe that returns *exactly the same thing* that Microsoft's # cl.exe does, and if icl is present, it's almost certainly what # you want. defaults['c'] = ['icl', 'cl', 'cc', 'gcc', 'clang', 'clang-cl', 'pgcc'] # There is currently no pgc++ for Windows, only for Mac and Linux. defaults['cpp'] = ['icl', 'cl', 'c++', 'g++', 'clang++', 'clang-cl'] # the binary flang-new will be renamed to flang in the foreseeable future defaults['fortran'] = ['ifort', 'ifx', 'gfortran', 'flang-new', 'flang', 'pgfortran', 'g95'] defaults['objc'] = ['clang', 'clang-cl', 'gcc'] defaults['objcpp'] = ['clang++', 'clang-cl', 'g++'] defaults['cs'] = ['csc', 'mcs'] else: if platform.machine().lower() == 'e2k': defaults['c'] = ['cc', 'gcc', 'lcc', 'clang'] defaults['cpp'] = ['c++', 'g++', 'l++', 'clang++'] defaults['objc'] = ['clang'] defaults['objcpp'] = ['clang++'] else: defaults['c'] = ['cc', 'gcc', 'clang', 'nvc', 'pgcc', 'icc', 'icx'] defaults['cpp'] = ['c++', 'g++', 'clang++', 'nvc++', 'pgc++', 'icpc', 'icpx'] defaults['objc'] = ['clang', 'gcc'] defaults['objcpp'] = ['clang++', 'g++'] # the binary flang-new will be renamed to flang in the foreseeable future defaults['fortran'] = ['gfortran', 'flang-new', 'flang', 'nvfortran', 'pgfortran', 'ifort', 'ifx', 'g95'] defaults['cs'] = ['mcs', 'csc'] defaults['d'] = ['ldc2', 'ldc', 'gdc', 'dmd'] defaults['java'] = ['javac'] defaults['cuda'] = ['nvcc'] defaults['rust'] = ['rustc'] defaults['swift'] = ['swiftc'] defaults['vala'] = ['valac'] defaults['cython'] = ['cython', 'cython3'] # Official name is cython, but Debian renamed it to cython3. defaults['static_linker'] = ['ar', 'gar'] defaults['strip'] = ['strip'] 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'] defaults['emxomf_static_linker'] = ['emxomfar'] defaults['nasm'] = ['nasm', 'yasm'] def compiler_from_language(env: 'Environment', lang: str, for_machine: MachineChoice) -> T.Optional[Compiler]: lang_map: T.Dict[str, T.Callable[['Environment', MachineChoice], Compiler]] = { 'c': detect_c_compiler, 'cpp': detect_cpp_compiler, 'objc': detect_objc_compiler, 'cuda': detect_cuda_compiler, 'objcpp': detect_objcpp_compiler, 'java': detect_java_compiler, 'cs': detect_cs_compiler, 'vala': detect_vala_compiler, 'd': detect_d_compiler, 'rust': detect_rust_compiler, 'fortran': detect_fortran_compiler, 'swift': detect_swift_compiler, 'cython': detect_cython_compiler, 'nasm': detect_nasm_compiler, 'masm': detect_masm_compiler, 'linearasm': detect_linearasm_compiler, } return lang_map[lang](env, for_machine) if lang in lang_map else None def detect_compiler_for(env: 'Environment', lang: str, for_machine: MachineChoice, skip_sanity_check: bool, subproject: str) -> T.Optional[Compiler]: comp = compiler_from_language(env, lang, for_machine) if comp is None: return comp assert comp.for_machine == for_machine env.coredata.process_compiler_options(lang, comp, subproject) if not skip_sanity_check: comp.sanity_check(env.get_scratch_dir()) env.coredata.compilers[comp.for_machine][lang] = comp return comp # Helpers # ======= def _get_compilers(env: 'Environment', lang: str, for_machine: MachineChoice, allow_build_machine: bool = False) -> T.Tuple[T.List[T.List[str]], T.Union[None, ExternalProgram]]: ''' The list of compilers is detected in the exact same way for C, C++, ObjC, ObjC++, Fortran, CS so consolidate it here. ''' value = env.lookup_binary_entry(for_machine, lang) if value is not None: comp, ccache = BinaryTable.parse_entry(value) # Return value has to be a list of compiler 'choices' compilers = [comp] else: if not env.machines.matches_build_machine(for_machine): if allow_build_machine: return _get_compilers(env, lang, MachineChoice.BUILD) raise EnvironmentException(f'{lang!r} compiler binary not defined in cross file [binaries] section') compilers = [[x] for x in defaults[lang]] ccache = BinaryTable.detect_compiler_cache() return compilers, ccache def _handle_exceptions( exceptions: T.Mapping[str, T.Union[Exception, str]], binaries: T.List[T.List[str]], bintype: str = 'compiler') -> T.NoReturn: errmsg = f'Unknown {bintype}(s): {binaries}' if exceptions: errmsg += '\nThe following exception(s) were encountered:' for c, e in exceptions.items(): errmsg += f'\nRunning `{c}` gave "{e}"' raise EnvironmentException(errmsg) # Linker specific # =============== def detect_static_linker(env: 'Environment', compiler: Compiler) -> StaticLinker: from . import d from ..linkers import linkers from ..options import OptionKey linker = env.lookup_binary_entry(compiler.for_machine, 'ar') if linker is not None: trials = [linker] else: default_linkers = [[l] for l in defaults['static_linker']] if compiler.language == 'cuda': trials = [defaults['cuda_static_linker']] + default_linkers elif compiler.get_argument_syntax() == 'msvc': trials = [defaults['vs_static_linker'], defaults['clang_cl_static_linker']] elif env.machines[compiler.for_machine].is_os2() and env.coredata.optstore.get_value_for(OptionKey('os2_emxomf')): trials = [defaults['emxomf_static_linker']] + default_linkers elif compiler.id == 'gcc': # Use gcc-ar if available; needed for LTO trials = [defaults['gcc_static_linker']] + default_linkers elif compiler.id == 'clang': # Use llvm-ar if available; needed for LTO llvm_ar = defaults['clang_static_linker'] # Extract the version major of the compiler to use as a suffix suffix = compiler.version.split('.')[0] # Prefer suffixed llvm-ar first, then unsuffixed then the defaults trials = [[f'{llvm_ar[0]}-{suffix}'], llvm_ar] + default_linkers elif compiler.language == 'd': # Prefer static linkers over linkers used by D compilers if is_windows(): trials = [defaults['vs_static_linker'], defaults['clang_cl_static_linker'], compiler.get_linker_exelist()] else: trials = default_linkers elif compiler.id == 'intel-cl' and compiler.language == 'c': # why not cpp? Is this a bug? # Intel has its own linker that acts like Microsoft's lib trials = [['xilib']] elif is_windows() and compiler.id == 'pgi': # this handles cpp / nvidia HPC, in addition to just c/fortran trials = [['ar']] # For PGI on Windows, "ar" is just a wrapper calling link/lib. elif is_windows() and compiler.id == 'nasm': # This may well be LINK.EXE if it's under a MSVC environment trials = [defaults['vs_static_linker'], defaults['clang_cl_static_linker']] + default_linkers else: trials = default_linkers popen_exceptions = {} for linker in trials: linker_name = os.path.basename(linker[0]) if any(os.path.basename(x) in {'lib', 'lib.exe', 'llvm-lib', 'llvm-lib.exe', 'xilib', 'xilib.exe'} for x in linker): arg = '/?' elif linker_name in {'ar2000', 'ar2000.exe', 'ar430', 'ar430.exe', 'armar', 'armar.exe', 'ar6x', 'ar6x.exe'}: arg = '?' else: arg = '--version' try: p, out, err = Popen_safe_logged(linker + [arg], msg='Detecting archiver via') except OSError as e: popen_exceptions[join_args(linker + [arg])] = e continue if "xilib: executing 'lib'" in err: return linkers.IntelVisualStudioLinker(linker, env, getattr(compiler, 'machine', None)) if '/OUT:' in out.upper() or '/OUT:' in err.upper(): return linkers.VisualStudioLinker(linker, env, getattr(compiler, 'machine', None)) if 'ar-Error-Unknown switch: --version' in err: return linkers.PGIStaticLinker(linker, env) if p.returncode == 0 and 'armar' in linker_name: return linkers.ArmarLinker(linker, env) if 'DMD32 D Compiler' in out or 'DMD64 D Compiler' in out: assert isinstance(compiler, d.DCompiler) return linkers.DLinker(linker, env, compiler.arch) if 'LDC - the LLVM D compiler' in out: assert isinstance(compiler, d.DCompiler) return linkers.DLinker(linker, env, compiler.arch, rsp_syntax=compiler.rsp_file_syntax()) if 'GDC' in out and ' based on D ' in out: assert isinstance(compiler, d.DCompiler) return linkers.DLinker(linker, env, compiler.arch) if err.startswith('Renesas') and 'rlink' in linker_name: return linkers.CcrxLinker(linker, env) if out.startswith('GNU ar'): if 'xc16-ar' in linker_name: return linkers.Xc16Linker(linker, env) elif 'xc32-ar' in linker_name: return linkers.Xc32ArLinker(compiler.for_machine, linker, env) if 'Texas Instruments Incorporated' in out: if 'ar2000' in linker_name: return linkers.C2000Linker(linker, env) elif 'ar6000' in linker_name: return linkers.C6000Linker(linker, env) else: return linkers.TILinker(linker, env) if out.startswith('The CompCert'): return linkers.CompCertLinker(linker, env) if out.strip().startswith('Metrowerks') or out.strip().startswith('Freescale'): if 'ARM' in out: return linkers.MetrowerksStaticLinkerARM(linker, env) else: return linkers.MetrowerksStaticLinkerEmbeddedPowerPC(linker, env) if 'TASKING VX-toolset' in err: return linkers.TaskingStaticLinker(linker, env) if p.returncode == 0: return linkers.ArLinker(compiler.for_machine, linker, env) if p.returncode == 1 and err.startswith('usage'): # OSX return linkers.AppleArLinker(compiler.for_machine, linker, env) if p.returncode == 1 and err.startswith('Usage'): # AIX return linkers.AIXArLinker(linker, env) if p.returncode == 1 and err.startswith('ar: bad option: --'): # Solaris return linkers.ArLinker(compiler.for_machine, linker, env) if p.returncode == 1 and err.startswith('emxomfar'): return linkers.EmxomfArLinker(compiler.for_machine, linker, env) _handle_exceptions(popen_exceptions, trials, 'linker') raise EnvironmentException('Unreachable code (exception to make mypy happy)') # Compilers # ========= def _detect_c_or_cpp_compiler(env: 'Environment', lang: str, for_machine: MachineChoice, *, override_compiler: T.Optional[T.List[str]] = None) -> Compiler: """Shared implementation for finding the C or C++ compiler to use. the override_compiler option is provided to allow compilers which use the compiler (GCC or Clang usually) as their shared linker, to find the linker they need. """ from . import c, cpp from ..linkers import linkers popen_exceptions: T.Dict[str, T.Union[Exception, str]] = {} compilers, ccache_exe = _get_compilers(env, lang, for_machine) ccache = ccache_exe.get_command() if (ccache_exe and ccache_exe.found()) else [] if override_compiler is not None: compilers = [override_compiler] cls: T.Union[T.Type[CCompiler], T.Type[CPPCompiler]] lnk: T.Union[T.Type[StaticLinker], T.Type[DynamicLinker]] for compiler in compilers: if isinstance(compiler, str): compiler = [compiler] compiler_name = os.path.basename(compiler[0]) if any(os.path.basename(x) in {'cl', 'cl.exe', 'clang-cl', 'clang-cl.exe'} for x in compiler): # Watcom C provides its own cl.exe clone that mimics an older # version of Microsoft's compiler. Since Watcom's cl.exe is # just a wrapper, we skip using it if we detect its presence # so as not to confuse Meson when configuring for MSVC. # # Additionally the help text of Watcom's cl.exe is paged, and # the binary will not exit without human intervention. In # practice, Meson will block waiting for Watcom's cl.exe to # exit, which requires user input and thus will never exit. if 'WATCOM' in os.environ: def sanitize(p: T.Optional[str]) -> T.Optional[str]: return os.path.normcase(os.path.abspath(p)) if p else None watcom_cls = [sanitize(os.path.join(os.environ['WATCOM'], 'BINNT', 'cl')), sanitize(os.path.join(os.environ['WATCOM'], 'BINNT', 'cl.exe')), sanitize(os.path.join(os.environ['WATCOM'], 'BINNT64', 'cl')), sanitize(os.path.join(os.environ['WATCOM'], 'BINNT64', 'cl.exe'))] found_cl = sanitize(shutil.which('cl')) if found_cl in watcom_cls: mlog.debug('Skipping unsupported cl.exe clone at:', found_cl) continue arg = '/?' elif 'armcc' in compiler_name: arg = '--vsn' elif 'ccrx' in compiler_name: arg = '-v' elif 'xc16' in compiler_name: arg = '--version' elif 'ccomp' in compiler_name: arg = '-version' elif compiler_name in {'cl2000', 'cl2000.exe', 'cl430', 'cl430.exe', 'armcl', 'armcl.exe', 'cl6x', 'cl6x.exe'}: # TI compiler arg = '-version' elif compiler_name in {'icl', 'icl.exe'}: # if you pass anything to icl you get stuck in a pager arg = '' else: arg = '--version' cmd = compiler + [arg] try: p, out, err = Popen_safe_logged(cmd, msg='Detecting compiler via') except OSError as e: popen_exceptions[join_args(cmd)] = e continue if 'ccrx' in compiler_name: out = err full_version = out.split('\n', 1)[0] version = search_version(out) guess_gcc_or_lcc: T.Optional[str] = None if 'Free Software Foundation' in out or out.startswith('xt-'): guess_gcc_or_lcc = 'gcc' if 'e2k' in out and 'lcc' in out: guess_gcc_or_lcc = 'lcc' if 'Microchip' in out: # this output has "Free Software Foundation" in its version guess_gcc_or_lcc = None if guess_gcc_or_lcc: defines = _get_gnu_compiler_defines(compiler, lang) if not defines: popen_exceptions[join_args(compiler)] = 'no pre-processor defines' continue if guess_gcc_or_lcc == 'lcc': version = _get_lcc_version_from_defines(defines) cls = c.ElbrusCCompiler if lang == 'c' else cpp.ElbrusCPPCompiler else: version = _get_gnu_version_from_defines(defines) cls = c.GnuCCompiler if lang == 'c' else cpp.GnuCPPCompiler linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( ccache, compiler, version, for_machine, env, defines=defines, full_version=full_version, linker=linker) if 'Emscripten' in out: cls = c.EmscriptenCCompiler if lang == 'c' else cpp.EmscriptenCPPCompiler env.add_lang_args(cls.language, cls, for_machine) # emcc requires a file input in order to pass arguments to the # linker. It'll exit with an error code, but still print the # linker version. with tempfile.NamedTemporaryFile(suffix='.c') as f: cmd = compiler + [cls.LINKER_PREFIX + "--version", f.name] _, o, _ = Popen_safe(cmd) linker = linkers.WASMDynamicLinker( compiler, env, for_machine, cls.LINKER_PREFIX, [], version=search_version(o)) return cls( ccache, compiler, version, for_machine, env, linker=linker, full_version=full_version) if 'Arm C/C++/Fortran Compiler' in out: arm_ver_match = re.search(r'version (\d+)\.(\d+)\.?(\d+)? \(build number (\d+)\)', out) assert arm_ver_match is not None, 'for mypy' # because mypy *should* be complaining that this could be None version = '.'.join([x for x in arm_ver_match.groups() if x is not None]) if lang == 'c': cls = c.ArmLtdClangCCompiler elif lang == 'cpp': cls = cpp.ArmLtdClangCPPCompiler linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( ccache, compiler, version, for_machine, env, linker=linker) if 'armclang' in out: # The compiler version is not present in the first line of output, # instead it is present in second line, startswith 'Component:'. # So, searching for the 'Component' in out although we know it is # present in second line, as we are not sure about the # output format in future versions arm_ver_match = re.search('.*Component.*', out) if arm_ver_match is None: popen_exceptions[join_args(compiler)] = 'version string not found' continue arm_ver_str = arm_ver_match.group(0) # Override previous values version = search_version(arm_ver_str) full_version = arm_ver_str cls = c.ArmclangCCompiler if lang == 'c' else cpp.ArmclangCPPCompiler linker = linkers.ArmClangDynamicLinker(env, for_machine, version=version) env.add_lang_args(cls.language, cls, for_machine) return cls( ccache, compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'CL.EXE COMPATIBILITY' in out: # if this is clang-cl masquerading as cl, detect it as cl, not # clang arg = '--version' try: p, out, err = Popen_safe(compiler + [arg]) except OSError as e: popen_exceptions[join_args(compiler + [arg])] = e version = search_version(out) match = re.search('^Target: (.*?)-', out, re.MULTILINE) if match: target = match.group(1) else: target = 'unknown target' cls = c.ClangClCCompiler if lang == 'c' else cpp.ClangClCPPCompiler linker = guess_win_linker(env, ['lld-link'], cls, version, for_machine) return cls( compiler, version, for_machine, env, target, linker=linker) # must be detected here before clang because TI compilers contain 'clang' in their output and so that they can be detected as 'clang' ti_compilers = { 'TMS320C2000 C/C++': (c.C2000CCompiler, cpp.C2000CPPCompiler, linkers.C2000DynamicLinker), 'TMS320C6x C/C++': (c.C6000CCompiler, cpp.C6000CPPCompiler, linkers.C6000DynamicLinker), 'TI ARM C/C++ Compiler': (c.TICCompiler, cpp.TICPPCompiler, linkers.TIDynamicLinker), 'MSP430 C/C++': (c.TICCompiler, cpp.TICPPCompiler, linkers.TIDynamicLinker) } for identifier, compiler_classes in ti_compilers.items(): if identifier in out: cls = compiler_classes[0] if lang == 'c' else compiler_classes[1] lnk = compiler_classes[2] env.add_lang_args(cls.language, cls, for_machine) linker = lnk(compiler, env, for_machine, version=version) return cls( ccache, compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'clang' in out or 'Clang' in out: linker = None defines = _get_clang_compiler_defines(compiler, lang) # Even if the for_machine is darwin, we could be using vanilla # clang. if 'Apple' in out: cls = c.AppleClangCCompiler if lang == 'c' else cpp.AppleClangCPPCompiler else: cls = c.ClangCCompiler if lang == 'c' else cpp.ClangCPPCompiler if 'windows' in out or env.machines[for_machine].is_windows(): # If we're in a MINGW context this actually will use a gnu # style ld, but for clang on "real" windows we'll use # either link.exe or lld-link.exe try: linker = guess_win_linker(env, compiler, cls, version, for_machine, invoked_directly=False) except MesonException: pass if linker is None: linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( ccache, compiler, version, for_machine, env, defines=defines, full_version=full_version, linker=linker) if 'Intel(R) C++ Intel(R)' in err: version = search_version(err) target = 'x86' if 'IA-32' in err else 'x86_64' cls = c.IntelClCCompiler if lang == 'c' else cpp.IntelClCPPCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.XilinkDynamicLinker(env, for_machine, [], version=version) return cls( compiler, version, for_machine, env, target, linker=linker) if 'Intel(R) oneAPI DPC++/C++ Compiler for applications' in err: version = search_version(err) target = 'x86' if 'IA-32' in err else 'x86_64' cls = c.IntelLLVMClCCompiler if lang == 'c' else cpp.IntelLLVMClCPPCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.XilinkDynamicLinker(env, for_machine, [], version=version) return cls( compiler, version, for_machine, env, target, linker=linker) if 'Microsoft' in out or 'Microsoft' in err: # Latest versions of Visual Studio print version # number to stderr but earlier ones print version # on stdout. Why? Lord only knows. # Check both outputs to figure out version. for lookat in [err, out]: version = search_version(lookat) if version != 'unknown version': break else: raise EnvironmentException(f'Failed to detect MSVC compiler version: stderr was\n{err!r}') cl_signature = lookat.split('\n', maxsplit=1)[0] match = re.search(r'.*(x86|x64|ARM|ARM64)([^_A-Za-z0-9]|$)', cl_signature) if match: target = match.group(1) else: m = f'Failed to detect MSVC compiler target architecture: \'cl /?\' output is\n{cl_signature}' raise EnvironmentException(m) cls = c.VisualStudioCCompiler if lang == 'c' else cpp.VisualStudioCPPCompiler linker = guess_win_linker(env, ['link'], cls, version, for_machine) if ccache_exe and ccache_exe.found(): if ccache_exe.get_name() == 'ccache' and version_compare(ccache_exe.get_version(), '< 4.6'): mlog.warning('Visual Studio support requires ccache 4.6 or higher. You have ccache {}. '.format(ccache_exe.get_version()), once=True) ccache = [] return cls( ccache, compiler, version, for_machine, env, target, full_version=cl_signature, linker=linker) if 'PGI Compilers' in out: cls = c.PGICCompiler if lang == 'c' else cpp.PGICPPCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.PGIDynamicLinker(compiler, env, for_machine, cls.LINKER_PREFIX, [], version=version) return cls( ccache, compiler, version, for_machine, env, linker=linker) if 'NVIDIA Compilers and Tools' in out: cls = c.NvidiaHPC_CCompiler if lang == 'c' else cpp.NvidiaHPC_CPPCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.NvidiaHPC_DynamicLinker(compiler, env, for_machine, cls.LINKER_PREFIX, [], version=version) return cls( ccache, compiler, version, for_machine, env, linker=linker) if '(ICC)' in out: cls = c.IntelCCompiler if lang == 'c' else cpp.IntelCPPCompiler l = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( ccache, compiler, version, for_machine, env, full_version=full_version, linker=l) if 'Intel(R) oneAPI' in out: cls = c.IntelLLVMCCompiler if lang == 'c' else cpp.IntelLLVMCPPCompiler l = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( ccache, compiler, version, for_machine, env, full_version=full_version, linker=l) if 'ARM' in out and not ('Metrowerks' in out or 'Freescale' in out): cls = c.ArmCCompiler if lang == 'c' else cpp.ArmCPPCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.ArmDynamicLinker(env, for_machine, version=version) return cls( ccache, compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'RX Family' in out: cls = c.CcrxCCompiler if lang == 'c' else cpp.CcrxCPPCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.CcrxDynamicLinker(env, for_machine, version=version) return cls( ccache, compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'Microchip' in out: if 'XC32' in out: # XC32 versions always have the form 'vMAJOR.MINOR' match = re.search(r'XC32.*v(\d+\.\d+)', out) if match: version = match.group(1) else: raise EnvironmentException(f'Failed to detect XC32 compiler version: full version was\n{full_version}') cls = c.Xc32CCompiler if lang == 'c' else cpp.Xc32CPPCompiler defines = _get_gnu_compiler_defines(compiler, lang) cls.gcc_version = _get_gnu_version_from_defines(defines) env.add_lang_args(cls.language, cls, for_machine) linker = linkers.Xc32DynamicLinker(compiler, env, for_machine, cls.LINKER_PREFIX, [], version=version) return cls( ccache, compiler, version, for_machine, env, defines=defines, full_version=full_version, linker=linker) else: cls = c.Xc16CCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.Xc16DynamicLinker(env, for_machine, version=version) return cls( ccache, compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'CompCert' in out: cls = c.CompCertCCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.CompCertDynamicLinker(env, for_machine, version=version) return cls( ccache, compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'Metrowerks C/C++' in out or 'Freescale C/C++' in out: if 'ARM' in out: cls = c.MetrowerksCCompilerARM if lang == 'c' else cpp.MetrowerksCPPCompilerARM lnk = linkers.MetrowerksLinkerARM else: cls = c.MetrowerksCCompilerEmbeddedPowerPC if lang == 'c' else cpp.MetrowerksCPPCompilerEmbeddedPowerPC lnk = linkers.MetrowerksLinkerEmbeddedPowerPC mwcc_ver_match = re.search(r'Version (\d+)\.(\d+)\.?(\d+)? build (\d+)', out) assert mwcc_ver_match is not None, 'for mypy' # because mypy *should* be complaining that this could be None compiler_version = '.'.join(x for x in mwcc_ver_match.groups() if x is not None) env.add_lang_args(cls.language, cls, for_machine) ld = env.lookup_binary_entry(for_machine, cls.language + '_ld') if ld is not None: _, o_ld, _ = Popen_safe(ld + ['--version']) mwld_ver_match = re.search(r'Version (\d+)\.(\d+)\.?(\d+)? build (\d+)', o_ld) assert mwld_ver_match is not None, 'for mypy' # because mypy *should* be complaining that this could be None linker_version = '.'.join(x for x in mwld_ver_match.groups() if x is not None) linker = lnk(ld, env, for_machine, version=linker_version) else: raise EnvironmentException(f'Failed to detect linker for {cls.id!r} compiler. Please update your cross file(s).') return cls( ccache, compiler, compiler_version, for_machine, env, full_version=full_version, linker=linker) if 'TASKING VX-toolset' in err: cls = c.TaskingCCompiler lnk = linkers.TaskingLinker tasking_ver_match = re.search(r'v([0-9]+)\.([0-9]+)r([0-9]+) Build ([0-9]+)', err) assert tasking_ver_match is not None, 'for mypy' tasking_version = '.'.join(x for x in tasking_ver_match.groups() if x is not None) env.add_lang_args(cls.language, cls, for_machine) ld = env.lookup_binary_entry(for_machine, cls.language + '_ld') if ld is None: raise MesonException(f'{cls.language}_ld was not properly defined in your cross file') linker = lnk(ld, env, for_machine, version=tasking_version) return cls( ccache, compiler, tasking_version, for_machine, env, full_version=full_version, linker=linker) _handle_exceptions(popen_exceptions, compilers) raise EnvironmentException(f'Unknown compiler {compilers}') def detect_c_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: return _detect_c_or_cpp_compiler(env, 'c', for_machine) def detect_cpp_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: return _detect_c_or_cpp_compiler(env, 'cpp', for_machine) def detect_cuda_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: from .cuda import CudaCompiler, Phase from ..options import OptionKey from ..linkers.linkers import CudaLinker popen_exceptions = {} compilers, ccache_exe = _get_compilers(env, 'cuda', for_machine) ccache = ccache_exe.get_command() if (ccache_exe and ccache_exe.found()) else [] for compiler in compilers: arg = '--version' try: p, out, err = Popen_safe_logged(compiler + [arg], msg='Detecting compiler via') except OSError as e: popen_exceptions[join_args(compiler + [arg])] = e continue # Example nvcc printout: # # nvcc: NVIDIA (R) Cuda compiler driver # Copyright (c) 2005-2018 NVIDIA Corporation # Built on Sat_Aug_25_21:08:01_CDT_2018 # Cuda compilation tools, release 10.0, V10.0.130 # # search_version() first finds the "10.0" after "release", # rather than the more precise "10.0.130" after "V". # The patch version number is occasionally important; For # instance, on Linux, # - CUDA Toolkit 8.0.44 requires NVIDIA Driver 367.48 # - CUDA Toolkit 8.0.61 requires NVIDIA Driver 375.26 # Luckily, the "V" also makes it very simple to extract # the full version: version = out.strip().rsplit('V', maxsplit=1)[-1] cpp_compiler = detect_cpp_compiler(env, for_machine) cls = CudaCompiler env.add_lang_args(cls.language, cls, for_machine) key = OptionKey('cuda_link_args', machine=for_machine) if env.is_cross_build(for_machine): key = key.as_host() if key in env.options: # To fix LDFLAGS issue val = env.options[key] assert isinstance(val, list) env.coredata.optstore.set_option(key, cls.to_host_flags_base(val, Phase.LINKER)) linker = CudaLinker(compiler, env, for_machine, CudaCompiler.LINKER_PREFIX, [], version=CudaLinker.parse_version()) return cls(ccache, compiler, version, for_machine, cpp_compiler, env, linker=linker) raise EnvironmentException(f'Could not find suitable CUDA compiler: "{"; ".join([" ".join(c) for c in compilers])}"') def detect_fortran_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: from . import fortran from ..linkers import linkers popen_exceptions: T.Dict[str, T.Union[Exception, str]] = {} compilers, ccache = _get_compilers(env, 'fortran', for_machine) cls: T.Type[FortranCompiler] for compiler in compilers: # capture help text for possible fallback try: _, help_out, _ = Popen_safe_logged(compiler + ['--help'], msg='Detecting compiler via') except OSError as e: popen_exceptions[join_args(compiler + ['--help'])] = e help_out = '' for arg in ['--version', '-V']: try: p, out, err = Popen_safe_logged(compiler + [arg], msg='Detecting compiler via') except OSError as e: popen_exceptions[join_args(compiler + [arg])] = e continue version = search_version(out) full_version = out.split('\n', 1)[0] guess_gcc_or_lcc: T.Optional[str] = None if 'GNU Fortran' in out: guess_gcc_or_lcc = 'gcc' if 'e2k' in out and 'lcc' in out: guess_gcc_or_lcc = 'lcc' if guess_gcc_or_lcc: defines = _get_gnu_compiler_defines(compiler, 'fortran') if not defines: popen_exceptions[join_args(compiler)] = 'no pre-processor defines' continue if guess_gcc_or_lcc == 'lcc': version = _get_lcc_version_from_defines(defines) cls = fortran.ElbrusFortranCompiler linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( compiler, version, for_machine, env, defines, full_version=full_version, linker=linker) else: version = _get_gnu_version_from_defines(defines) cls = fortran.GnuFortranCompiler linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( compiler, version, for_machine, env, defines, full_version=full_version, linker=linker) if 'Arm C/C++/Fortran Compiler' in out: cls = fortran.ArmLtdFlangFortranCompiler arm_ver_match = re.search(r'version (\d+)\.(\d+)\.?(\d+)? \(build number (\d+)\)', out) assert arm_ver_match is not None, 'for mypy' # because mypy *should* be complaining that this could be None version = '.'.join([x for x in arm_ver_match.groups() if x is not None]) linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( compiler, version, for_machine, env, linker=linker) if 'G95' in out: cls = fortran.G95FortranCompiler linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'Sun Fortran' in err: version = search_version(err) cls = fortran.SunFortranCompiler linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'Intel(R) Fortran Compiler for applications' in err: version = search_version(err) target = 'x86' if 'IA-32' in err else 'x86_64' cls = fortran.IntelLLVMClFortranCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.XilinkDynamicLinker(env, for_machine, [], version=version) return cls( compiler, version, for_machine, env, target, linker=linker) if 'Intel(R) Visual Fortran' in err or 'Intel(R) Fortran' in err: version = search_version(err) target = 'x86' if 'IA-32' in err else 'x86_64' cls = fortran.IntelClFortranCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.XilinkDynamicLinker(env, for_machine, [], version=version) return cls( compiler, version, for_machine, env, target, linker=linker) if 'ifort (IFORT)' in out: cls = fortran.IntelFortranCompiler linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'ifx (IFORT)' in out or 'ifx (IFX)' in out: cls = fortran.IntelLLVMFortranCompiler linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'PathScale EKOPath(tm)' in err: return fortran.PathScaleFortranCompiler( compiler, version, for_machine, env, full_version=full_version) if 'PGI Compilers' in out: cls = fortran.PGIFortranCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.PGIDynamicLinker(compiler, env, for_machine, cls.LINKER_PREFIX, [], version=version) return cls( compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'NVIDIA Compilers and Tools' in out: cls = fortran.NvidiaHPC_FortranCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.PGIDynamicLinker(compiler, env, for_machine, cls.LINKER_PREFIX, [], version=version) return cls( compiler, version, for_machine, env, full_version=full_version, linker=linker) def _get_linker_try_windows(cls: T.Type['Compiler']) -> T.Optional['DynamicLinker']: linker = None if 'windows' in out or env.machines[for_machine].is_windows(): # If we're in a MINGW context this actually will use a gnu # style ld, but for flang on "real" windows we'll use # either link.exe or lld-link.exe try: linker = guess_win_linker( env, compiler, cls, version, for_machine, invoked_directly=False ) except MesonException: pass if linker is None: linker = guess_nix_linker(env, compiler, cls, version, for_machine) return linker if 'flang-new' in out or 'flang LLVM compiler' in help_out: cls = fortran.LlvmFlangFortranCompiler linker = _get_linker_try_windows(cls) return cls( compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'flang' in out or 'clang' in out: cls = fortran.ClassicFlangFortranCompiler linker = _get_linker_try_windows(cls) return cls( compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'Open64 Compiler Suite' in err: cls = fortran.Open64FortranCompiler linker = guess_nix_linker(env, compiler, cls, version, for_machine) return cls( compiler, version, for_machine, env, full_version=full_version, linker=linker) if 'NAG Fortran' in err: full_version = err.split('\n', 1)[0] version = full_version.split()[-1] cls = fortran.NAGFortranCompiler env.add_lang_args(cls.language, cls, for_machine) linker = linkers.NAGDynamicLinker( compiler, env, for_machine, cls.LINKER_PREFIX, [], version=version) return cls( compiler, version, for_machine, env, full_version=full_version, linker=linker) _handle_exceptions(popen_exceptions, compilers) raise EnvironmentException('Unreachable code (exception to make mypy happy)') def detect_objc_compiler(env: 'Environment', for_machine: MachineChoice) -> 'Compiler': return _detect_objc_or_objcpp_compiler(env, 'objc', for_machine) def detect_objcpp_compiler(env: 'Environment', for_machine: MachineChoice) -> 'Compiler': return _detect_objc_or_objcpp_compiler(env, 'objcpp', for_machine) def _detect_objc_or_objcpp_compiler(env: 'Environment', lang: str, for_machine: MachineChoice) -> 'Compiler': from . import objc, objcpp popen_exceptions: T.Dict[str, T.Union[Exception, str]] = {} compilers, ccache_exe = _get_compilers(env, lang, for_machine) ccache = ccache_exe.get_command() if (ccache_exe and ccache_exe.found()) else [] comp: T.Union[T.Type[objc.ObjCCompiler], T.Type[objcpp.ObjCPPCompiler]] for compiler in compilers: arg = ['--version'] try: p, out, err = Popen_safe_logged(compiler + arg, msg='Detecting compiler via') except OSError as e: popen_exceptions[join_args(compiler + arg)] = e continue version = search_version(out) if 'Free Software Foundation' in out: defines = _get_gnu_compiler_defines(compiler, lang) if not defines: popen_exceptions[join_args(compiler)] = 'no pre-processor defines' continue version = _get_gnu_version_from_defines(defines) comp = objc.GnuObjCCompiler if lang == 'objc' else objcpp.GnuObjCPPCompiler linker = guess_nix_linker(env, compiler, comp, version, for_machine) c = comp( ccache, compiler, version, for_machine, env, defines, linker=linker) if not c.compiles('int main(void) { return 0; }')[0]: popen_exceptions[join_args(compiler)] = f'GCC was not built with support for {"objective-c" if lang == "objc" else "objective-c++"}' continue return c if 'clang' in out: linker = None defines = _get_clang_compiler_defines(compiler, lang) if not defines: popen_exceptions[join_args(compiler)] = 'no pre-processor defines' continue if 'Apple' in out: comp = objc.AppleClangObjCCompiler if lang == 'objc' else objcpp.AppleClangObjCPPCompiler else: comp = objc.ClangObjCCompiler if lang == 'objc' else objcpp.ClangObjCPPCompiler if 'windows' in out or env.machines[for_machine].is_windows(): # If we're in a MINGW context this actually will use a gnu style ld try: linker = guess_win_linker(env, compiler, comp, version, for_machine) except MesonException: pass if not linker: linker = guess_nix_linker(env, compiler, comp, version, for_machine) return comp( ccache, compiler, version, for_machine, env, linker=linker, defines=defines) _handle_exceptions(popen_exceptions, compilers) raise EnvironmentException('Unreachable code (exception to make mypy happy)') def detect_java_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: from .java import JavaCompiler exelist = env.lookup_binary_entry(for_machine, 'java') if exelist is None: # TODO support fallback exelist = [defaults['java'][0]] try: p, out, err = Popen_safe_logged(exelist + ['-version'], msg='Detecting compiler via') except OSError: raise EnvironmentException('Could not execute Java compiler: {}'.format(join_args(exelist))) if 'javac' in out or 'javac' in err: version = search_version(err if 'javac' in err else out) if not version or version == 'unknown version': parts = (err if 'javac' in err else out).split() if len(parts) > 1: version = parts[1] comp_class = JavaCompiler env.add_lang_args(comp_class.language, comp_class, for_machine) return comp_class(exelist, version, for_machine, env) raise EnvironmentException('Unknown compiler: ' + join_args(exelist)) def detect_cs_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: from . import cs compilers, ccache = _get_compilers(env, 'cs', for_machine) popen_exceptions = {} for comp in compilers: try: p, out, err = Popen_safe_logged(comp + ['--version'], msg='Detecting compiler via') except OSError as e: popen_exceptions[join_args(comp + ['--version'])] = e continue version = search_version(out) cls: T.Type[cs.CsCompiler] if 'Mono' in out: cls = cs.MonoCompiler elif "Visual C#" in out: cls = cs.VisualStudioCsCompiler else: continue env.add_lang_args(cls.language, cls, for_machine) return cls(comp, version, for_machine, env) _handle_exceptions(popen_exceptions, compilers) raise EnvironmentException('Unreachable code (exception to make mypy happy)') def detect_cython_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: """Search for a cython compiler.""" from .cython import CythonCompiler compilers, _ = _get_compilers(env, 'cython', MachineChoice.BUILD) popen_exceptions: T.Dict[str, Exception] = {} for comp in compilers: try: _, out, err = Popen_safe_logged(comp + ['-V'], msg='Detecting compiler via') except OSError as e: popen_exceptions[join_args(comp + ['-V'])] = e continue version: T.Optional[str] = None # 3.0 if 'Cython' in out: version = search_version(out) # older elif 'Cython' in err: version = search_version(err) if version is not None: comp_class = CythonCompiler env.add_lang_args(comp_class.language, comp_class, for_machine) return comp_class([], comp, version, for_machine, env) _handle_exceptions(popen_exceptions, compilers) raise EnvironmentException('Unreachable code (exception to make mypy happy)') def detect_vala_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: from .vala import ValaCompiler exelist = env.lookup_binary_entry(MachineChoice.BUILD, 'vala') if exelist is None: # TODO support fallback exelist = [defaults['vala'][0]] try: p, out = Popen_safe_logged(exelist + ['--version'], msg='Detecting compiler via')[0:2] except OSError: raise EnvironmentException('Could not execute Vala compiler: {}'.format(join_args(exelist))) version = search_version(out) if 'Vala' in out: comp_class = ValaCompiler env.add_lang_args(comp_class.language, comp_class, for_machine) return comp_class(exelist, version, for_machine, env) raise EnvironmentException('Unknown compiler: ' + join_args(exelist)) def detect_rust_compiler(env: 'Environment', for_machine: MachineChoice) -> RustCompiler: from . import rust from ..linkers import linkers popen_exceptions: T.Dict[str, Exception] = {} compilers, _ = _get_compilers(env, 'rust', for_machine) cc = detect_c_compiler(env, for_machine) is_link_exe = isinstance(cc.linker, linkers.VisualStudioLikeLinkerMixin) override = env.lookup_binary_entry(for_machine, 'rust_ld') for compiler in compilers: arg = ['--version'] try: out = Popen_safe_logged(compiler + arg, msg='Detecting compiler via')[1] except OSError as e: popen_exceptions[join_args(compiler + arg)] = e continue # Full version contains the "-nightly" or "-beta" suffixes, but version # should just be X.Y.Z full_version = search_version(out) version = full_version.split('-', 1)[0] cls: T.Type[RustCompiler] = rust.RustCompiler # Clippy is a wrapper around rustc, but it doesn't have rustc in its # output. We can otherwise treat it as rustc. if 'clippy' in out: # clippy returns its own version and not the rustc version by # default so try harder here to get the correct version. # Also replace the whole output with the rustc output in # case this is later used for other purposes. arg = ['--rustc', '--version'] try: out = Popen_safe(compiler + arg)[1] except OSError as e: popen_exceptions[join_args(compiler + arg)] = e continue full_version = search_version(out) version = full_version.split('-', 1)[0] cls = rust.ClippyRustCompiler mlog.deprecation( 'clippy-driver is not intended as a general purpose compiler. ' 'You can use "ninja clippy" in order to run clippy on a ' 'meson project.') if 'rustc' in out: # On Linux and mac rustc will invoke gcc (clang for mac # presumably) and it can do this windows, for dynamic linking. # this means the easiest way to C compiler for dynamic linking. # figure out what linker to use is to just get the value of the # C compiler and use that as the basis of the rust linker. # However, there are two things we need to change, if CC is not # the default use that, and second add the necessary arguments # to rust to use -fuse-ld if any(a.startswith('linker=') for a in compiler): mlog.warning( 'Please do not put -C linker= in your compiler ' 'command, set rust_ld=command in your cross file ' 'or use the RUSTC_LD environment variable, otherwise meson ' 'will override your selection.') compiler = compiler.copy() # avoid mutating the original list if override is None: extra_args: T.Dict[str, T.Union[str, bool]] = {} always_args: T.List[str] = [] if is_link_exe: compiler.extend(cls.use_linker_args(cc.linker.get_exe(), '')) extra_args['direct'] = True extra_args['machine'] = cc.linker.machine else: exelist = cc.linker.exelist + cc.linker.get_always_args() if os.path.basename(exelist[0]) in {'ccache', 'sccache'}: del exelist[0] c = exelist.pop(0) compiler.extend(cls.use_linker_args(c, '')) # Also ensure that we pass any extra arguments to the linker for l in exelist: compiler.extend(['-C', f'link-arg={l}']) # This trickery with type() gets us the class of the linker # so we can initialize a new copy for the Rust Compiler # TODO rewrite this without type: ignore assert cc.linker is not None, 'for mypy' linker: DynamicLinker if is_link_exe: # TODO: Due to initializer mismatch we can't use the VisualStudioLikeMixin here # But all of these ahve the same API so we can just pick one. linker = T.cast('T.Type[linkers.MSVCDynamicLinker]', type(cc.linker))( env, for_machine, always_args, exelist=cc.linker.exelist, version=cc.linker.version, **extra_args) # type: ignore else: linker = type(cc.linker)(compiler, env, for_machine, cc.LINKER_PREFIX, always_args=always_args, system=cc.linker.system, version=cc.linker.version, **extra_args) elif 'link' in override[0]: linker = guess_win_linker(env, override, cls, version, for_machine, use_linker_prefix=False) # rustc takes linker arguments without a prefix, and # inserts the correct prefix itself. assert isinstance(linker, linkers.VisualStudioLikeLinkerMixin) linker.direct = True compiler.extend(cls.use_linker_args(linker.get_exe(), '')) else: # On linux and macos rust will invoke the c compiler for # linking, on windows it will use lld-link or link.exe. # we will simply ask for the C compiler that corresponds to # it, and use that. cc = _detect_c_or_cpp_compiler(env, 'c', for_machine, override_compiler=override) linker = cc.linker # Of course, we're not going to use any of that, we just # need it to get the proper arguments to pass to rustc c = linker.exelist[1] if linker.exelist[0].endswith('ccache') else linker.exelist[0] compiler.extend(cls.use_linker_args(c, '')) env.add_lang_args(cls.language, cls, for_machine) return cls( compiler, version, for_machine, env, linker=linker, full_version=full_version) _handle_exceptions(popen_exceptions, compilers) raise EnvironmentException('Unreachable code (exception to make mypy happy)') def detect_d_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: from . import c, d # Detect the target architecture, required for proper architecture handling on Windows. # MSVC compiler is required for correct platform detection. c_compiler = {'c': detect_c_compiler(env, for_machine)} is_msvc = isinstance(c_compiler['c'], c.VisualStudioCCompiler) if not is_msvc: c_compiler = {} arch = detect_cpu_family(c_compiler) if is_msvc and arch == 'x86': arch = 'x86_mscoff' popen_exceptions = {} info = env.machines[for_machine] compilers, ccache = _get_compilers(env, 'd', for_machine) cls: T.Type[d.DCompiler] for exelist in compilers: # Search for a D compiler. # We prefer LDC over GDC unless overridden with the DC # environment variable because LDC has a much more # up to date language version at time (2016). if os.path.basename(exelist[-1]).startswith(('ldmd', 'gdmd')): raise EnvironmentException( f'Meson does not support {exelist[-1]} as it is only a DMD frontend for another compiler.' 'Please provide a valid value for DC or unset it so that Meson can resolve the compiler by itself.') try: p, out = Popen_safe(exelist + ['--version'])[0:2] except OSError as e: popen_exceptions[join_args(exelist + ['--version'])] = e continue version = search_version(out) full_version = out.split('\n', 1)[0] # The OpenD fork should stay close enough to upstream D (in # the areas that interest us) to allow supporting them both # without much hassle. # See: https://github.com/orgs/opendlang/discussions/56 if 'LLVM D compiler' in out or 'LLVM Open D compiler' in out: cls = d.LLVMDCompiler # LDC seems to require a file # We cannot use NamedTemporaryFile on windows, its documented # to not work for our uses. So, just use mkstemp and only have # one path for simplicity. o, f = tempfile.mkstemp('.d') os.close(o) try: if info.is_windows() or info.is_cygwin(): objfile = os.path.basename(f)[:-1] + 'obj' extra_args = [f] if env.is_cross_build(for_machine): extra_args.append(f'-mtriple={info.cpu}-windows') linker = guess_win_linker(env, exelist, cls, full_version, for_machine, use_linker_prefix=True, invoked_directly=False, extra_args=extra_args) else: # LDC writes an object file to the current working directory. # Clean it up. objfile = os.path.basename(f)[:-1] + 'o' linker = guess_nix_linker(env, exelist, cls, full_version, for_machine, extra_args=[f]) finally: windows_proof_rm(f) windows_proof_rm(objfile) return cls( exelist, version, for_machine, env, arch, full_version=full_version, linker=linker, version_output=out) elif 'gdc' in out: cls = d.GnuDCompiler linker = guess_nix_linker(env, exelist, cls, version, for_machine) return cls( exelist, version, for_machine, env, arch, full_version=full_version, linker=linker) elif 'The D Language Foundation' in out or 'Digital Mars' in out: cls = d.DmdDCompiler # DMD seems to require a file # We cannot use NamedTemporaryFile on windows, its documented # to not work for our uses. So, just use mkstemp and only have # one path for simplicity. o, f = tempfile.mkstemp('.d') os.close(o) # DMD as different detection logic for x86 and x86_64 arch_arg = '-m64' if arch == 'x86_64' else '-m32' try: if info.is_windows() or info.is_cygwin(): objfile = os.path.basename(f)[:-1] + 'obj' linker = guess_win_linker(env, exelist, cls, full_version, for_machine, invoked_directly=False, extra_args=[f, arch_arg]) else: objfile = os.path.basename(f)[:-1] + 'o' linker = guess_nix_linker(env, exelist, cls, full_version, for_machine, extra_args=[f, arch_arg]) finally: windows_proof_rm(f) windows_proof_rm(objfile) return cls( exelist, version, for_machine, env, arch, full_version=full_version, linker=linker) raise EnvironmentException('Unknown compiler: ' + join_args(exelist)) _handle_exceptions(popen_exceptions, compilers) raise EnvironmentException('Unreachable code (exception to make mypy happy)') def detect_swift_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: from .swift import SwiftCompiler exelist = env.lookup_binary_entry(for_machine, 'swift') if exelist is None: # TODO support fallback exelist = [defaults['swift'][0]] try: p, _, err = Popen_safe_logged(exelist + ['-v'], msg='Detecting compiler via') except OSError: raise EnvironmentException('Could not execute Swift compiler: {}'.format(join_args(exelist))) version = search_version(err) if 'Swift' in err: # As for 5.0.1 swiftc *requires* a file to check the linker: with tempfile.NamedTemporaryFile(suffix='.swift') as f: cls = SwiftCompiler linker = guess_nix_linker(env, exelist, cls, version, for_machine, extra_args=[f.name, '-o', '/dev/null']) return cls( exelist, version, for_machine, env, linker=linker) raise EnvironmentException('Unknown compiler: ' + join_args(exelist)) def detect_nasm_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: from .asm import NasmCompiler, YasmCompiler, MetrowerksAsmCompilerARM, MetrowerksAsmCompilerEmbeddedPowerPC # When cross compiling and nasm is not defined in the cross file we can # fallback to the build machine nasm. compilers, _ = _get_compilers(env, 'nasm', for_machine, allow_build_machine=True) # We need a C compiler to properly detect the machine info and linker cc = detect_c_compiler(env, for_machine) popen_exceptions: T.Dict[str, Exception] = {} for comp in compilers: if comp == ['nasm'] and is_windows() and not shutil.which(comp[0]): # nasm is not in PATH on Windows by default default_path = os.path.join(os.environ['ProgramFiles'], 'NASM') comp[0] = shutil.which(comp[0], path=default_path) or comp[0] try: output = Popen_safe_logged(comp + ['--version'], msg='Detecting compiler via')[1] except OSError as e: popen_exceptions[' '.join(comp + ['--version'])] = e continue version = search_version(output) comp_class: T.Type[ASMCompiler] if 'NASM' in output: comp_class = NasmCompiler env.add_lang_args(comp_class.language, comp_class, for_machine) return comp_class([], comp, version, for_machine, env, cc.linker) elif 'yasm' in output: comp_class = YasmCompiler env.add_lang_args(comp_class.language, comp_class, for_machine) return comp_class([], comp, version, for_machine, env, cc.linker) elif 'Metrowerks' in output or 'Freescale' in output: if 'ARM' in output: comp_class_mwasmarm = MetrowerksAsmCompilerARM env.add_lang_args(comp_class_mwasmarm.language, comp_class_mwasmarm, for_machine) return comp_class_mwasmarm([], comp, version, for_machine, env, cc.linker) else: comp_class_mwasmeppc = MetrowerksAsmCompilerEmbeddedPowerPC env.add_lang_args(comp_class_mwasmeppc.language, comp_class_mwasmeppc, for_machine) return comp_class_mwasmeppc([], comp, version, for_machine, env, cc.linker) _handle_exceptions(popen_exceptions, compilers) raise EnvironmentException('Unreachable code (exception to make mypy happy)') def detect_masm_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler: # We need a C compiler to properly detect the machine info and linker cc = detect_c_compiler(env, for_machine) if not env.is_cross_build(for_machine): info = detect_machine_info({'c': cc}) else: info = env.machines[for_machine] from .asm import MasmCompiler, MasmARMCompiler comp_class: T.Type[ASMCompiler] if info.cpu_family == 'x86': comp = ['ml'] comp_class = MasmCompiler arg = '/?' elif info.cpu_family == 'x86_64': comp = ['ml64'] comp_class = MasmCompiler arg = '/?' elif info.cpu_family == 'arm': comp = ['armasm'] comp_class = MasmARMCompiler arg = '-h' elif info.cpu_family == 'aarch64': comp = ['armasm64'] comp_class = MasmARMCompiler arg = '-h' else: raise EnvironmentException(f'Platform {info.cpu_family} not supported by MASM') popen_exceptions: T.Dict[str, Exception] = {} try: output = Popen_safe(comp + [arg])[2] version = search_version(output) env.add_lang_args(comp_class.language, comp_class, for_machine) return comp_class([], comp, version, for_machine, env, cc.linker) except OSError as e: popen_exceptions[' '.join(comp + [arg])] = e _handle_exceptions(popen_exceptions, [comp]) raise EnvironmentException('Unreachable code (exception to make mypy happy)') def detect_linearasm_compiler(env: Environment, for_machine: MachineChoice) -> Compiler: from .asm import TILinearAsmCompiler comp = ['cl6x'] comp_class: T.Type[ASMCompiler] = TILinearAsmCompiler arg = '-h' cc = detect_c_compiler(env, for_machine) popen_exceptions: T.Dict[str, Exception] = {} try: output = Popen_safe(comp + [arg])[2] version = search_version(output) env.add_lang_args(comp_class.language, comp_class, for_machine) return comp_class([], comp, version, for_machine, env, cc.linker) except OSError as e: popen_exceptions[' '.join(comp + [arg])] = e _handle_exceptions(popen_exceptions, [comp]) raise EnvironmentException('Unreachable code (exception to make mypy happy)') # GNU/Clang defines and version # ============================= def _get_gnu_compiler_defines(compiler: T.List[str], lang: str) -> T.Dict[str, str]: """ Get the list of GCC pre-processor defines """ from .mixins.gnu import gnu_lang_map def _try_obtain_compiler_defines(args: T.List[str]) -> str: mlog.debug(f'Running command: {join_args(args)}') p, output, error = Popen_safe(compiler + args, write='', stdin=subprocess.PIPE) if p.returncode != 0: raise EnvironmentException('Unable to get gcc pre-processor defines:\n' f'Compiler stdout:\n{output}\n-----\n' f'Compiler stderr:\n{error}\n-----\n') return output # Arguments to output compiler pre-processor defines to stdout # gcc, g++, and gfortran all support these arguments baseline_test_args = ['-E', '-dM', '-'] try: # We assume that when _get_gnu_compiler_defines is called, it's # close enough to a GCCish compiler so we reuse the _LANG_MAP # from the GCC mixin. This isn't a dangerous assumption because # we fallback if the detection fails anyway. # We might not have a match for Fortran, so fallback to detection # based on the driver. lang = gnu_lang_map[lang] # The compiler may not infer the target language based on the driver name # so first, try with '-cpp -x lang', then fallback without given it's less # portable. We try with '-cpp' as GCC needs it for Fortran at least, and # it seems to do no harm. output = _try_obtain_compiler_defines(['-cpp', '-x', lang] + baseline_test_args) except (EnvironmentException, KeyError): mlog.debug(f'pre-processor extraction using -cpp -x {lang} failed, falling back w/o lang') output = _try_obtain_compiler_defines(baseline_test_args) # Parse several lines of the type: # `#define ___SOME_DEF some_value` # and extract `___SOME_DEF` defines: T.Dict[str, str] = {} for line in output.split('\n'): if not line: continue d, *rest = line.split(' ', 2) if d != '#define': continue if len(rest) == 1: defines[rest[0]] = '' if len(rest) == 2: defines[rest[0]] = rest[1] return defines def _get_clang_compiler_defines(compiler: T.List[str], lang: str) -> T.Dict[str, str]: """ Get the list of Clang pre-processor defines """ from .mixins.clang import clang_lang_map def _try_obtain_compiler_defines(args: T.List[str]) -> str: mlog.debug(f'Running command: {join_args(args)}') p, output, error = Popen_safe(compiler + args, write='', stdin=subprocess.PIPE) if p.returncode != 0: raise EnvironmentException('Unable to get clang pre-processor defines:\n' f'Compiler stdout:\n{output}\n-----\n' f'Compiler stderr:\n{error}\n-----\n') return output # Arguments to output compiler pre-processor defines to stdout baseline_test_args = ['-E', '-dM', '-'] try: # We assume that when _get_clang_compiler_defines is called, it's # close enough to a Clangish compiler so we reuse the _LANG_MAP # from the Clang mixin. This isn't a dangerous assumption because # we fallback if the detection fails anyway. # We might not have a match for Fortran, so fallback to detection # based on the driver. lang = clang_lang_map[lang] # The compiler may not infer the target language based on the driver name. # Try first with '-x lang' to supported systemwide language level overrides, # then fallback to without since it's a more recent option. output = _try_obtain_compiler_defines(['-x', lang] + baseline_test_args) except (EnvironmentException, KeyError): mlog.debug(f'pre-processor extraction using -x {lang} failed, falling back w/o lang') output = _try_obtain_compiler_defines(baseline_test_args) defines: T.Dict[str, str] = {} for line in output.split('\n'): if not line: continue d, *rest = line.split(' ', 2) if d != '#define': continue if len(rest) == 1: defines[rest[0]] = '' if len(rest) == 2: defines[rest[0]] = rest[1] return defines def _get_gnu_version_from_defines(defines: T.Dict[str, str]) -> str: dot = '.' major = defines.get('__GNUC__', '0') minor = defines.get('__GNUC_MINOR__', '0') patch = defines.get('__GNUC_PATCHLEVEL__', '0') return dot.join((major, minor, patch)) def _get_lcc_version_from_defines(defines: T.Dict[str, str]) -> str: dot = '.' generation_and_major = defines.get('__LCC__', '100') generation = generation_and_major[:1] major = generation_and_major[1:] minor = defines.get('__LCC_MINOR__', '0') return dot.join((generation, major, minor))