| # SPDX-License-Identifier: Apache-2.0 |
| # Copyright 2012-2020 The Meson development team |
| # Copyright © 2023 Intel Corporation |
| |
| from __future__ import annotations |
| |
| import itertools |
| import os, platform, re, sys, shutil |
| import typing as T |
| import collections |
| |
| from . import coredata |
| from . import mesonlib |
| from . import machinefile |
| |
| CmdLineFileParser = machinefile.CmdLineFileParser |
| |
| from .mesonlib import ( |
| MesonException, MachineChoice, Popen_safe, PerMachine, |
| PerMachineDefaultable, PerThreeMachineDefaultable, split_args, quote_arg, OptionKey, |
| search_version, MesonBugException |
| ) |
| from . import mlog |
| from .programs import ExternalProgram |
| |
| from .envconfig import ( |
| BinaryTable, MachineInfo, Properties, known_cpu_families, CMakeVariables, |
| ) |
| from . import compilers |
| from .compilers import ( |
| is_assembly, |
| is_header, |
| is_library, |
| is_llvm_ir, |
| is_object, |
| is_source, |
| ) |
| |
| from functools import lru_cache |
| from mesonbuild import envconfig |
| |
| if T.TYPE_CHECKING: |
| from configparser import ConfigParser |
| |
| from .compilers import Compiler |
| from .wrap.wrap import Resolver |
| |
| CompilersDict = T.Dict[str, Compiler] |
| |
| |
| build_filename = 'meson.build' |
| |
| |
| def _get_env_var(for_machine: MachineChoice, is_cross: bool, var_name: str) -> T.Optional[str]: |
| """ |
| Returns the exact env var and the value. |
| """ |
| candidates = PerMachine( |
| # The prefixed build version takes priority, but if we are native |
| # compiling we fall back on the unprefixed host version. This |
| # allows native builds to never need to worry about the 'BUILD_*' |
| # ones. |
| ([var_name + '_FOR_BUILD'] if is_cross else [var_name]), |
| # Always just the unprefixed host versions |
| [var_name] |
| )[for_machine] |
| for var in candidates: |
| value = os.environ.get(var) |
| if value is not None: |
| break |
| else: |
| formatted = ', '.join([f'{var!r}' for var in candidates]) |
| mlog.debug(f'None of {formatted} are defined in the environment, not changing global flags.') |
| return None |
| mlog.debug(f'Using {var!r} from environment with value: {value!r}') |
| return value |
| |
| |
| def detect_gcovr(gcovr_exe: str = 'gcovr', min_version: str = '3.3', log: bool = False): |
| try: |
| p, found = Popen_safe([gcovr_exe, '--version'])[0:2] |
| except (FileNotFoundError, PermissionError): |
| # Doesn't exist in PATH or isn't executable |
| return None, None |
| found = search_version(found) |
| if p.returncode == 0 and mesonlib.version_compare(found, '>=' + min_version): |
| if log: |
| mlog.log('Found gcovr-{} at {}'.format(found, quote_arg(shutil.which(gcovr_exe)))) |
| return gcovr_exe, found |
| return None, None |
| |
| def detect_lcov(lcov_exe: str = 'lcov', log: bool = False): |
| try: |
| p, found = Popen_safe([lcov_exe, '--version'])[0:2] |
| except (FileNotFoundError, PermissionError): |
| # Doesn't exist in PATH or isn't executable |
| return None, None |
| found = search_version(found) |
| if p.returncode == 0 and found: |
| if log: |
| mlog.log('Found lcov-{} at {}'.format(found, quote_arg(shutil.which(lcov_exe)))) |
| return lcov_exe, found |
| return None, None |
| |
| def detect_llvm_cov(suffix: T.Optional[str] = None): |
| # If there's a known suffix or forced lack of suffix, use that |
| if suffix is not None: |
| if suffix == '': |
| tool = 'llvm-cov' |
| else: |
| tool = f'llvm-cov-{suffix}' |
| if mesonlib.exe_exists([tool, '--version']): |
| return tool |
| else: |
| # Otherwise guess in the dark |
| tools = get_llvm_tool_names('llvm-cov') |
| for tool in tools: |
| if mesonlib.exe_exists([tool, '--version']): |
| return tool |
| return None |
| |
| def compute_llvm_suffix(coredata: coredata.CoreData): |
| # Check to see if the user is trying to do coverage for either a C or C++ project |
| compilers = coredata.compilers[MachineChoice.BUILD] |
| cpp_compiler_is_clang = 'cpp' in compilers and compilers['cpp'].id == 'clang' |
| c_compiler_is_clang = 'c' in compilers and compilers['c'].id == 'clang' |
| # Extract first the C++ compiler if available. If it's a Clang of some kind, compute the suffix if possible |
| if cpp_compiler_is_clang: |
| suffix = compilers['cpp'].version.split('.')[0] |
| return suffix |
| |
| # Then the C compiler, again checking if it's some kind of Clang and computing the suffix |
| if c_compiler_is_clang: |
| suffix = compilers['c'].version.split('.')[0] |
| return suffix |
| |
| # Neither compiler is a Clang, or no compilers are for C or C++ |
| return None |
| |
| def detect_lcov_genhtml(lcov_exe: str = 'lcov', genhtml_exe: str = 'genhtml'): |
| lcov_exe, lcov_version = detect_lcov(lcov_exe) |
| if not mesonlib.exe_exists([genhtml_exe, '--version']): |
| genhtml_exe = None |
| |
| return lcov_exe, lcov_version, genhtml_exe |
| |
| def find_coverage_tools(coredata: coredata.CoreData) -> T.Tuple[T.Optional[str], T.Optional[str], T.Optional[str], T.Optional[str], T.Optional[str], T.Optional[str]]: |
| gcovr_exe, gcovr_version = detect_gcovr() |
| |
| llvm_cov_exe = detect_llvm_cov(compute_llvm_suffix(coredata)) |
| |
| lcov_exe, lcov_version, genhtml_exe = detect_lcov_genhtml() |
| |
| return gcovr_exe, gcovr_version, lcov_exe, lcov_version, genhtml_exe, llvm_cov_exe |
| |
| def detect_ninja(version: str = '1.8.2', log: bool = False) -> T.List[str]: |
| r = detect_ninja_command_and_version(version, log) |
| return r[0] if r else None |
| |
| def detect_ninja_command_and_version(version: str = '1.8.2', log: bool = False) -> T.Tuple[T.List[str], str]: |
| env_ninja = os.environ.get('NINJA', None) |
| for n in [env_ninja] if env_ninja else ['ninja', 'ninja-build', 'samu']: |
| prog = ExternalProgram(n, silent=True) |
| if not prog.found(): |
| continue |
| try: |
| p, found = Popen_safe(prog.command + ['--version'])[0:2] |
| except (FileNotFoundError, PermissionError): |
| # Doesn't exist in PATH or isn't executable |
| continue |
| found = found.strip() |
| # Perhaps we should add a way for the caller to know the failure mode |
| # (not found or too old) |
| if p.returncode == 0 and mesonlib.version_compare(found, '>=' + version): |
| if log: |
| name = os.path.basename(n) |
| if name.endswith('-' + found): |
| name = name[0:-1 - len(found)] |
| if name == 'ninja-build': |
| name = 'ninja' |
| if name == 'samu': |
| name = 'samurai' |
| mlog.log('Found {}-{} at {}'.format(name, found, |
| ' '.join([quote_arg(x) for x in prog.command]))) |
| return (prog.command, found) |
| |
| def get_llvm_tool_names(tool: str) -> T.List[str]: |
| # Ordered list of possible suffixes of LLVM executables to try. Start with |
| # base, then try newest back to oldest (3.5 is arbitrary), and finally the |
| # devel version. Please note that the development snapshot in Debian does |
| # not have a distinct name. Do not move it to the beginning of the list |
| # unless it becomes a stable release. |
| suffixes = [ |
| '', # base (no suffix) |
| '-18.1', '18.1', |
| '-18', '18', |
| '-17', '17', |
| '-16', '16', |
| '-15', '15', |
| '-14', '14', |
| '-13', '13', |
| '-12', '12', |
| '-11', '11', |
| '-10', '10', |
| '-9', '90', |
| '-8', '80', |
| '-7', '70', |
| '-6.0', '60', |
| '-5.0', '50', |
| '-4.0', '40', |
| '-3.9', '39', |
| '-3.8', '38', |
| '-3.7', '37', |
| '-3.6', '36', |
| '-3.5', '35', |
| '-19', # Debian development snapshot |
| '-devel', # FreeBSD development snapshot |
| ] |
| names: T.List[str] = [] |
| for suffix in suffixes: |
| names.append(tool + suffix) |
| return names |
| |
| def detect_scanbuild() -> T.List[str]: |
| """ Look for scan-build binary on build platform |
| |
| First, if a SCANBUILD env variable has been provided, give it precedence |
| on all platforms. |
| |
| For most platforms, scan-build is found is the PATH contains a binary |
| named "scan-build". However, some distribution's package manager (FreeBSD) |
| don't. For those, loop through a list of candidates to see if one is |
| available. |
| |
| Return: a single-element list of the found scan-build binary ready to be |
| passed to Popen() |
| """ |
| exelist: T.List[str] = [] |
| if 'SCANBUILD' in os.environ: |
| exelist = split_args(os.environ['SCANBUILD']) |
| |
| else: |
| tools = get_llvm_tool_names('scan-build') |
| for tool in tools: |
| which = shutil.which(tool) |
| if which is not None: |
| exelist = [which] |
| break |
| |
| if exelist: |
| tool = exelist[0] |
| if os.path.isfile(tool) and os.access(tool, os.X_OK): |
| return [tool] |
| return [] |
| |
| def detect_clangformat() -> T.List[str]: |
| """ Look for clang-format binary on build platform |
| |
| Do the same thing as detect_scanbuild to find clang-format except it |
| currently does not check the environment variable. |
| |
| Return: a single-element list of the found clang-format binary ready to be |
| passed to Popen() |
| """ |
| tools = get_llvm_tool_names('clang-format') |
| for tool in tools: |
| path = shutil.which(tool) |
| if path is not None: |
| return [path] |
| return [] |
| |
| def detect_windows_arch(compilers: CompilersDict) -> str: |
| """ |
| Detecting the 'native' architecture of Windows is not a trivial task. We |
| cannot trust that the architecture that Python is built for is the 'native' |
| one because you can run 32-bit apps on 64-bit Windows using WOW64 and |
| people sometimes install 32-bit Python on 64-bit Windows. |
| |
| We also can't rely on the architecture of the OS itself, since it's |
| perfectly normal to compile and run 32-bit applications on Windows as if |
| they were native applications. It's a terrible experience to require the |
| user to supply a cross-info file to compile 32-bit applications on 64-bit |
| Windows. Thankfully, the only way to compile things with Visual Studio on |
| Windows is by entering the 'msvc toolchain' environment, which can be |
| easily detected. |
| |
| In the end, the sanest method is as follows: |
| 1. Check environment variables that are set by Windows and WOW64 to find out |
| if this is x86 (possibly in WOW64), if so use that as our 'native' |
| architecture. |
| 2. If the compiler toolchain target architecture is x86, use that as our |
| 'native' architecture. |
| 3. Otherwise, use the actual Windows architecture |
| |
| """ |
| os_arch = mesonlib.windows_detect_native_arch() |
| if os_arch == 'x86': |
| return os_arch |
| # If we're on 64-bit Windows, 32-bit apps can be compiled without |
| # cross-compilation. So if we're doing that, just set the native arch as |
| # 32-bit and pretend like we're running under WOW64. Else, return the |
| # actual Windows architecture that we deduced above. |
| for compiler in compilers.values(): |
| if compiler.id == 'msvc' and (compiler.target in {'x86', '80x86'}): |
| return 'x86' |
| if compiler.id == 'clang-cl' and compiler.target == 'x86': |
| return 'x86' |
| if compiler.id == 'gcc' and compiler.has_builtin_define('__i386__'): |
| return 'x86' |
| return os_arch |
| |
| def any_compiler_has_define(compilers: CompilersDict, define: str) -> bool: |
| for c in compilers.values(): |
| try: |
| if c.has_builtin_define(define): |
| return True |
| except mesonlib.MesonException: |
| # Ignore compilers that do not support has_builtin_define. |
| pass |
| return False |
| |
| def detect_cpu_family(compilers: CompilersDict) -> str: |
| """ |
| Python is inconsistent in its platform module. |
| It returns different values for the same cpu. |
| For x86 it might return 'x86', 'i686' or somesuch. |
| Do some canonicalization. |
| """ |
| if mesonlib.is_windows(): |
| trial = detect_windows_arch(compilers) |
| elif mesonlib.is_freebsd() or mesonlib.is_netbsd() or mesonlib.is_openbsd() or mesonlib.is_qnx() or mesonlib.is_aix(): |
| trial = platform.processor().lower() |
| else: |
| trial = platform.machine().lower() |
| if trial.startswith('i') and trial.endswith('86'): |
| trial = 'x86' |
| elif trial == 'bepc': |
| trial = 'x86' |
| elif trial == 'arm64': |
| trial = 'aarch64' |
| elif trial.startswith('aarch64'): |
| # This can be `aarch64_be` |
| trial = 'aarch64' |
| elif trial.startswith('arm') or trial.startswith('earm'): |
| trial = 'arm' |
| elif trial.startswith(('powerpc64', 'ppc64')): |
| trial = 'ppc64' |
| elif trial.startswith(('powerpc', 'ppc')) or trial in {'macppc', 'power macintosh'}: |
| trial = 'ppc' |
| elif trial in {'amd64', 'x64', 'i86pc'}: |
| trial = 'x86_64' |
| elif trial in {'sun4u', 'sun4v'}: |
| trial = 'sparc64' |
| elif trial.startswith('mips'): |
| if '64' not in trial: |
| trial = 'mips' |
| else: |
| trial = 'mips64' |
| elif trial in {'ip30', 'ip35'}: |
| trial = 'mips64' |
| |
| # On Linux (and maybe others) there can be any mixture of 32/64 bit code in |
| # the kernel, Python, system, 32-bit chroot on 64-bit host, etc. The only |
| # reliable way to know is to check the compiler defines. |
| if trial == 'x86_64': |
| if any_compiler_has_define(compilers, '__i386__'): |
| trial = 'x86' |
| elif trial == 'aarch64': |
| if any_compiler_has_define(compilers, '__arm__'): |
| trial = 'arm' |
| # Add more quirks here as bugs are reported. Keep in sync with detect_cpu() |
| # below. |
| elif trial == 'parisc64': |
| # ATM there is no 64 bit userland for PA-RISC. Thus always |
| # report it as 32 bit for simplicity. |
| trial = 'parisc' |
| elif trial == 'ppc': |
| # AIX always returns powerpc, check here for 64-bit |
| if any_compiler_has_define(compilers, '__64BIT__'): |
| trial = 'ppc64' |
| # MIPS64 is able to run MIPS32 code natively, so there is a chance that |
| # such mixture mentioned above exists. |
| elif trial == 'mips64': |
| if compilers and not any_compiler_has_define(compilers, '__mips64'): |
| trial = 'mips' |
| |
| if trial not in known_cpu_families: |
| mlog.warning(f'Unknown CPU family {trial!r}, please report this at ' |
| 'https://github.com/mesonbuild/meson/issues/new with the ' |
| 'output of `uname -a` and `cat /proc/cpuinfo`') |
| |
| return trial |
| |
| def detect_cpu(compilers: CompilersDict) -> str: |
| if mesonlib.is_windows(): |
| trial = detect_windows_arch(compilers) |
| elif mesonlib.is_freebsd() or mesonlib.is_netbsd() or mesonlib.is_openbsd() or mesonlib.is_aix(): |
| trial = platform.processor().lower() |
| else: |
| trial = platform.machine().lower() |
| |
| if trial in {'amd64', 'x64', 'i86pc'}: |
| trial = 'x86_64' |
| if trial == 'x86_64': |
| # Same check as above for cpu_family |
| if any_compiler_has_define(compilers, '__i386__'): |
| trial = 'i686' # All 64 bit cpus have at least this level of x86 support. |
| elif trial.startswith('aarch64') or trial.startswith('arm64'): |
| # Same check as above for cpu_family |
| if any_compiler_has_define(compilers, '__arm__'): |
| trial = 'arm' |
| else: |
| # for aarch64_be |
| trial = 'aarch64' |
| elif trial.startswith('earm'): |
| trial = 'arm' |
| elif trial == 'e2k': |
| # Make more precise CPU detection for Elbrus platform. |
| trial = platform.processor().lower() |
| elif trial.startswith('mips'): |
| if '64' not in trial: |
| trial = 'mips' |
| else: |
| if compilers and not any_compiler_has_define(compilers, '__mips64'): |
| trial = 'mips' |
| else: |
| trial = 'mips64' |
| elif trial == 'ppc': |
| # AIX always returns powerpc, check here for 64-bit |
| if any_compiler_has_define(compilers, '__64BIT__'): |
| trial = 'ppc64' |
| |
| # Add more quirks here as bugs are reported. Keep in sync with |
| # detect_cpu_family() above. |
| return trial |
| |
| KERNEL_MAPPINGS: T.Mapping[str, str] = {'freebsd': 'freebsd', |
| 'openbsd': 'openbsd', |
| 'netbsd': 'netbsd', |
| 'windows': 'nt', |
| 'android': 'linux', |
| 'linux': 'linux', |
| 'cygwin': 'nt', |
| 'darwin': 'xnu', |
| 'dragonfly': 'dragonfly', |
| 'haiku': 'haiku', |
| } |
| |
| def detect_kernel(system: str) -> T.Optional[str]: |
| if system == 'sunos': |
| # Solaris 5.10 uname doesn't support the -o switch, and illumos started |
| # with version 5.11 so shortcut the logic to report 'solaris' in such |
| # cases where the version is 5.10 or below. |
| if mesonlib.version_compare(platform.uname().release, '<=5.10'): |
| return 'solaris' |
| # This needs to be /usr/bin/uname because gnu-uname could be installed and |
| # won't provide the necessary information |
| p, out, _ = Popen_safe(['/usr/bin/uname', '-o']) |
| if p.returncode != 0: |
| raise MesonException('Failed to run "/usr/bin/uname -o"') |
| out = out.lower().strip() |
| if out not in {'illumos', 'solaris'}: |
| mlog.warning(f'Got an unexpected value for kernel on a SunOS derived platform, expcted either "illumos" or "solaris", but got "{out}".' |
| "Please open a Meson issue with the OS you're running and the value detected for your kernel.") |
| return None |
| return out |
| return KERNEL_MAPPINGS.get(system, None) |
| |
| def detect_subsystem(system: str) -> T.Optional[str]: |
| if system == 'darwin': |
| return 'macos' |
| return system |
| |
| def detect_system() -> str: |
| if sys.platform == 'cygwin': |
| return 'cygwin' |
| return platform.system().lower() |
| |
| def detect_msys2_arch() -> T.Optional[str]: |
| return os.environ.get('MSYSTEM_CARCH', None) |
| |
| def detect_machine_info(compilers: T.Optional[CompilersDict] = None) -> MachineInfo: |
| """Detect the machine we're running on |
| |
| If compilers are not provided, we cannot know as much. None out those |
| fields to avoid accidentally depending on partial knowledge. The |
| underlying ''detect_*'' method can be called to explicitly use the |
| partial information. |
| """ |
| system = detect_system() |
| return MachineInfo( |
| system, |
| detect_cpu_family(compilers) if compilers is not None else None, |
| detect_cpu(compilers) if compilers is not None else None, |
| sys.byteorder, |
| detect_kernel(system), |
| detect_subsystem(system)) |
| |
| # TODO make this compare two `MachineInfo`s purely. How important is the |
| # `detect_cpu_family({})` distinction? It is the one impediment to that. |
| def machine_info_can_run(machine_info: MachineInfo): |
| """Whether we can run binaries for this machine on the current machine. |
| |
| Can almost always run 32-bit binaries on 64-bit natively if the host |
| and build systems are the same. We don't pass any compilers to |
| detect_cpu_family() here because we always want to know the OS |
| architecture, not what the compiler environment tells us. |
| """ |
| if machine_info.system != detect_system(): |
| return False |
| true_build_cpu_family = detect_cpu_family({}) |
| return \ |
| (machine_info.cpu_family == true_build_cpu_family) or \ |
| ((true_build_cpu_family == 'x86_64') and (machine_info.cpu_family == 'x86')) or \ |
| ((true_build_cpu_family == 'mips64') and (machine_info.cpu_family == 'mips')) or \ |
| ((true_build_cpu_family == 'aarch64') and (machine_info.cpu_family == 'arm')) |
| |
| class Environment: |
| private_dir = 'meson-private' |
| log_dir = 'meson-logs' |
| info_dir = 'meson-info' |
| |
| def __init__(self, source_dir: str, build_dir: str, cmd_options: coredata.SharedCMDOptions) -> None: |
| self.source_dir = source_dir |
| self.build_dir = build_dir |
| # Do not try to create build directories when build_dir is none. |
| # This reduced mode is used by the --buildoptions introspector |
| if build_dir is not None: |
| self.scratch_dir = os.path.join(build_dir, Environment.private_dir) |
| self.log_dir = os.path.join(build_dir, Environment.log_dir) |
| self.info_dir = os.path.join(build_dir, Environment.info_dir) |
| os.makedirs(self.scratch_dir, exist_ok=True) |
| os.makedirs(self.log_dir, exist_ok=True) |
| os.makedirs(self.info_dir, exist_ok=True) |
| try: |
| self.coredata: coredata.CoreData = coredata.load(self.get_build_dir(), suggest_reconfigure=False) |
| self.first_invocation = False |
| except FileNotFoundError: |
| self.create_new_coredata(cmd_options) |
| except coredata.MesonVersionMismatchException as e: |
| # This is routine, but tell the user the update happened |
| mlog.log('Regenerating configuration from scratch:', str(e)) |
| coredata.read_cmd_line_file(self.build_dir, cmd_options) |
| self.create_new_coredata(cmd_options) |
| except MesonException as e: |
| # If we stored previous command line options, we can recover from |
| # a broken/outdated coredata. |
| if os.path.isfile(coredata.get_cmd_line_file(self.build_dir)): |
| mlog.warning('Regenerating configuration from scratch.', fatal=False) |
| mlog.log('Reason:', mlog.red(str(e))) |
| coredata.read_cmd_line_file(self.build_dir, cmd_options) |
| self.create_new_coredata(cmd_options) |
| else: |
| raise MesonException(f'{str(e)} Try regenerating using "meson setup --wipe".') |
| else: |
| # Just create a fresh coredata in this case |
| self.scratch_dir = '' |
| self.create_new_coredata(cmd_options) |
| |
| ## locally bind some unfrozen configuration |
| |
| # Stores machine infos, the only *three* machine one because we have a |
| # target machine info on for the user (Meson never cares about the |
| # target machine.) |
| machines: PerThreeMachineDefaultable[MachineInfo] = PerThreeMachineDefaultable() |
| |
| # Similar to coredata.compilers, but lower level in that there is no |
| # meta data, only names/paths. |
| binaries: PerMachineDefaultable[BinaryTable] = PerMachineDefaultable() |
| |
| # Misc other properties about each machine. |
| properties: PerMachineDefaultable[Properties] = PerMachineDefaultable() |
| |
| # CMake toolchain variables |
| cmakevars: PerMachineDefaultable[CMakeVariables] = PerMachineDefaultable() |
| |
| ## Setup build machine defaults |
| |
| # Will be fully initialized later using compilers later. |
| machines.build = detect_machine_info() |
| |
| # Just uses hard-coded defaults and environment variables. Might be |
| # overwritten by a native file. |
| binaries.build = BinaryTable() |
| properties.build = Properties() |
| |
| # Options with the key parsed into an OptionKey type. |
| # |
| # Note that order matters because of 'buildtype', if it is after |
| # 'optimization' and 'debug' keys, it override them. |
| self.options: T.MutableMapping[OptionKey, T.Union[str, T.List[str]]] = collections.OrderedDict() |
| |
| ## Read in native file(s) to override build machine configuration |
| |
| if self.coredata.config_files is not None: |
| config = machinefile.parse_machine_files(self.coredata.config_files, self.source_dir) |
| binaries.build = BinaryTable(config.get('binaries', {})) |
| properties.build = Properties(config.get('properties', {})) |
| cmakevars.build = CMakeVariables(config.get('cmake', {})) |
| self._load_machine_file_options( |
| config, properties.build, |
| MachineChoice.BUILD if self.coredata.cross_files else MachineChoice.HOST) |
| |
| ## Read in cross file(s) to override host machine configuration |
| |
| if self.coredata.cross_files: |
| config = machinefile.parse_machine_files(self.coredata.cross_files, self.source_dir) |
| properties.host = Properties(config.get('properties', {})) |
| binaries.host = BinaryTable(config.get('binaries', {})) |
| cmakevars.host = CMakeVariables(config.get('cmake', {})) |
| if 'host_machine' in config: |
| machines.host = MachineInfo.from_literal(config['host_machine']) |
| if 'target_machine' in config: |
| machines.target = MachineInfo.from_literal(config['target_machine']) |
| # Keep only per machine options from the native file. The cross |
| # file takes precedence over all other options. |
| for key, value in list(self.options.items()): |
| if self.coredata.is_per_machine_option(key): |
| self.options[key.as_build()] = value |
| self._load_machine_file_options(config, properties.host, MachineChoice.HOST) |
| |
| ## "freeze" now initialized configuration, and "save" to the class. |
| |
| self.machines = machines.default_missing() |
| self.binaries = binaries.default_missing() |
| self.properties = properties.default_missing() |
| self.cmakevars = cmakevars.default_missing() |
| |
| # Command line options override those from cross/native files |
| self.options.update(cmd_options.cmd_line_options) |
| |
| # Take default value from env if not set in cross/native files or command line. |
| self._set_default_options_from_env() |
| self._set_default_binaries_from_env() |
| self._set_default_properties_from_env() |
| |
| # Warn if the user is using two different ways of setting build-type |
| # options that override each other |
| bt = OptionKey('buildtype') |
| db = OptionKey('debug') |
| op = OptionKey('optimization') |
| if bt in self.options and (db in self.options or op in self.options): |
| mlog.warning('Recommend using either -Dbuildtype or -Doptimization + -Ddebug. ' |
| 'Using both is redundant since they override each other. ' |
| 'See: https://mesonbuild.com/Builtin-options.html#build-type-options', |
| fatal=False) |
| |
| exe_wrapper = self.lookup_binary_entry(MachineChoice.HOST, 'exe_wrapper') |
| if exe_wrapper is not None: |
| self.exe_wrapper = ExternalProgram.from_bin_list(self, MachineChoice.HOST, 'exe_wrapper') |
| else: |
| self.exe_wrapper = None |
| |
| self.default_cmake = ['cmake'] |
| self.default_pkgconfig = ['pkg-config'] |
| self.wrap_resolver: T.Optional['Resolver'] = None |
| |
| def _load_machine_file_options(self, config: 'ConfigParser', properties: Properties, machine: MachineChoice) -> None: |
| """Read the contents of a Machine file and put it in the options store.""" |
| |
| # Look for any options in the deprecated paths section, warn about |
| # those, then assign them. They will be overwritten by the ones in the |
| # "built-in options" section if they're in both sections. |
| paths = config.get('paths') |
| if paths: |
| mlog.deprecation('The [paths] section is deprecated, use the [built-in options] section instead.') |
| for k, v in paths.items(): |
| self.options[OptionKey.from_string(k).evolve(machine=machine)] = v |
| |
| # Next look for compiler options in the "properties" section, this is |
| # also deprecated, and these will also be overwritten by the "built-in |
| # options" section. We need to remove these from this section, as well. |
| deprecated_properties: T.Set[str] = set() |
| for lang in compilers.all_languages: |
| deprecated_properties.add(lang + '_args') |
| deprecated_properties.add(lang + '_link_args') |
| for k, v in properties.properties.copy().items(): |
| if k in deprecated_properties: |
| mlog.deprecation(f'{k} in the [properties] section of the machine file is deprecated, use the [built-in options] section.') |
| self.options[OptionKey.from_string(k).evolve(machine=machine)] = v |
| del properties.properties[k] |
| |
| for section, values in config.items(): |
| if ':' in section: |
| subproject, section = section.split(':') |
| else: |
| subproject = '' |
| if section == 'built-in options': |
| for k, v in values.items(): |
| key = OptionKey.from_string(k) |
| # If we're in the cross file, and there is a `build.foo` warn about that. Later we'll remove it. |
| if machine is MachineChoice.HOST and key.machine is not machine: |
| mlog.deprecation('Setting build machine options in cross files, please use a native file instead, this will be removed in meson 0.60', once=True) |
| if key.subproject: |
| raise MesonException('Do not set subproject options in [built-in options] section, use [subproject:built-in options] instead.') |
| self.options[key.evolve(subproject=subproject, machine=machine)] = v |
| elif section == 'project options' and machine is MachineChoice.HOST: |
| # Project options are only for the host machine, we don't want |
| # to read these from the native file |
| for k, v in values.items(): |
| # Project options are always for the host machine |
| key = OptionKey.from_string(k) |
| if key.subproject: |
| raise MesonException('Do not set subproject options in [built-in options] section, use [subproject:built-in options] instead.') |
| self.options[key.evolve(subproject=subproject)] = v |
| |
| def _set_default_options_from_env(self) -> None: |
| opts: T.List[T.Tuple[str, str]] = ( |
| [(v, f'{k}_args') for k, v in compilers.compilers.CFLAGS_MAPPING.items()] + |
| [ |
| ('PKG_CONFIG_PATH', 'pkg_config_path'), |
| ('CMAKE_PREFIX_PATH', 'cmake_prefix_path'), |
| ('LDFLAGS', 'ldflags'), |
| ('CPPFLAGS', 'cppflags'), |
| ] |
| ) |
| |
| env_opts: T.DefaultDict[OptionKey, T.List[str]] = collections.defaultdict(list) |
| |
| for (evar, keyname), for_machine in itertools.product(opts, MachineChoice): |
| p_env = _get_env_var(for_machine, self.is_cross_build(), evar) |
| if p_env is not None: |
| # these may contain duplicates, which must be removed, else |
| # a duplicates-in-array-option warning arises. |
| if keyname == 'cmake_prefix_path': |
| if self.machines[for_machine].is_windows(): |
| # Cannot split on ':' on Windows because its in the drive letter |
| _p_env = p_env.split(os.pathsep) |
| else: |
| # https://github.com/mesonbuild/meson/issues/7294 |
| _p_env = re.split(r':|;', p_env) |
| p_list = list(mesonlib.OrderedSet(_p_env)) |
| elif keyname == 'pkg_config_path': |
| p_list = list(mesonlib.OrderedSet(p_env.split(os.pathsep))) |
| else: |
| p_list = split_args(p_env) |
| p_list = [e for e in p_list if e] # filter out any empty elements |
| |
| # Take env vars only on first invocation, if the env changes when |
| # reconfiguring it gets ignored. |
| # FIXME: We should remember if we took the value from env to warn |
| # if it changes on future invocations. |
| if self.first_invocation: |
| if keyname == 'ldflags': |
| key = OptionKey('link_args', machine=for_machine, lang='c') # needs a language to initialize properly |
| for lang in compilers.compilers.LANGUAGES_USING_LDFLAGS: |
| key = key.evolve(lang=lang) |
| env_opts[key].extend(p_list) |
| elif keyname == 'cppflags': |
| key = OptionKey('env_args', machine=for_machine, lang='c') |
| for lang in compilers.compilers.LANGUAGES_USING_CPPFLAGS: |
| key = key.evolve(lang=lang) |
| env_opts[key].extend(p_list) |
| else: |
| key = OptionKey.from_string(keyname).evolve(machine=for_machine) |
| if evar in compilers.compilers.CFLAGS_MAPPING.values(): |
| # If this is an environment variable, we have to |
| # store it separately until the compiler is |
| # instantiated, as we don't know whether the |
| # compiler will want to use these arguments at link |
| # time and compile time (instead of just at compile |
| # time) until we're instantiating that `Compiler` |
| # object. This is required so that passing |
| # `-Dc_args=` on the command line and `$CFLAGS` |
| # have subtly different behavior. `$CFLAGS` will be |
| # added to the linker command line if the compiler |
| # acts as a linker driver, `-Dc_args` will not. |
| # |
| # We still use the original key as the base here, as |
| # we want to inherit the machine and the compiler |
| # language |
| key = key.evolve('env_args') |
| env_opts[key].extend(p_list) |
| |
| # Only store options that are not already in self.options, |
| # otherwise we'd override the machine files |
| for k, v in env_opts.items(): |
| if k not in self.options: |
| self.options[k] = v |
| |
| def _set_default_binaries_from_env(self) -> None: |
| """Set default binaries from the environment. |
| |
| For example, pkg-config can be set via PKG_CONFIG, or in the machine |
| file. We want to set the default to the env variable. |
| """ |
| opts = itertools.chain(envconfig.DEPRECATED_ENV_PROG_MAP.items(), |
| envconfig.ENV_VAR_PROG_MAP.items()) |
| |
| for (name, evar), for_machine in itertools.product(opts, MachineChoice): |
| p_env = _get_env_var(for_machine, self.is_cross_build(), evar) |
| if p_env is not None: |
| if os.path.exists(p_env): |
| self.binaries[for_machine].binaries.setdefault(name, [p_env]) |
| else: |
| self.binaries[for_machine].binaries.setdefault(name, mesonlib.split_args(p_env)) |
| |
| def _set_default_properties_from_env(self) -> None: |
| """Properties which can also be set from the environment.""" |
| # name, evar, split |
| opts: T.List[T.Tuple[str, T.List[str], bool]] = [ |
| ('boost_includedir', ['BOOST_INCLUDEDIR'], False), |
| ('boost_librarydir', ['BOOST_LIBRARYDIR'], False), |
| ('boost_root', ['BOOST_ROOT', 'BOOSTROOT'], True), |
| ('java_home', ['JAVA_HOME'], False), |
| ] |
| |
| for (name, evars, split), for_machine in itertools.product(opts, MachineChoice): |
| for evar in evars: |
| p_env = _get_env_var(for_machine, self.is_cross_build(), evar) |
| if p_env is not None: |
| if split: |
| self.properties[for_machine].properties.setdefault(name, p_env.split(os.pathsep)) |
| else: |
| self.properties[for_machine].properties.setdefault(name, p_env) |
| break |
| |
| def create_new_coredata(self, options: coredata.SharedCMDOptions) -> None: |
| # WARNING: Don't use any values from coredata in __init__. It gets |
| # re-initialized with project options by the interpreter during |
| # build file parsing. |
| # meson_command is used by the regenchecker script, which runs meson |
| self.coredata = coredata.CoreData(options, self.scratch_dir, mesonlib.get_meson_command()) |
| self.first_invocation = True |
| |
| def is_cross_build(self, when_building_for: MachineChoice = MachineChoice.HOST) -> bool: |
| return self.coredata.is_cross_build(when_building_for) |
| |
| def dump_coredata(self) -> str: |
| return coredata.save(self.coredata, self.get_build_dir()) |
| |
| def get_log_dir(self) -> str: |
| return self.log_dir |
| |
| def get_coredata(self) -> coredata.CoreData: |
| return self.coredata |
| |
| @staticmethod |
| def get_build_command(unbuffered: bool = False) -> T.List[str]: |
| cmd = mesonlib.get_meson_command() |
| if cmd is None: |
| raise MesonBugException('No command?') |
| cmd = cmd.copy() |
| if unbuffered and 'python' in os.path.basename(cmd[0]): |
| cmd.insert(1, '-u') |
| return cmd |
| |
| def is_header(self, fname: 'mesonlib.FileOrString') -> bool: |
| return is_header(fname) |
| |
| def is_source(self, fname: 'mesonlib.FileOrString') -> bool: |
| return is_source(fname) |
| |
| def is_assembly(self, fname: 'mesonlib.FileOrString') -> bool: |
| return is_assembly(fname) |
| |
| def is_llvm_ir(self, fname: 'mesonlib.FileOrString') -> bool: |
| return is_llvm_ir(fname) |
| |
| def is_object(self, fname: 'mesonlib.FileOrString') -> bool: |
| return is_object(fname) |
| |
| @lru_cache(maxsize=None) |
| def is_library(self, fname: mesonlib.FileOrString): |
| return is_library(fname) |
| |
| def lookup_binary_entry(self, for_machine: MachineChoice, name: str) -> T.Optional[T.List[str]]: |
| return self.binaries[for_machine].lookup_entry(name) |
| |
| def get_scratch_dir(self) -> str: |
| return self.scratch_dir |
| |
| def get_source_dir(self) -> str: |
| return self.source_dir |
| |
| def get_build_dir(self) -> str: |
| return self.build_dir |
| |
| def get_import_lib_dir(self) -> str: |
| "Install dir for the import library (library used for linking)" |
| return self.get_libdir() |
| |
| def get_shared_module_dir(self) -> str: |
| "Install dir for shared modules that are loaded at runtime" |
| return self.get_libdir() |
| |
| def get_shared_lib_dir(self) -> str: |
| "Install dir for the shared library" |
| m = self.machines.host |
| # Windows has no RPATH or similar, so DLLs must be next to EXEs. |
| if m.is_windows() or m.is_cygwin(): |
| return self.get_bindir() |
| return self.get_libdir() |
| |
| def get_jar_dir(self) -> str: |
| """Install dir for JAR files""" |
| return f"{self.get_datadir()}/java" |
| |
| def get_static_lib_dir(self) -> str: |
| "Install dir for the static library" |
| return self.get_libdir() |
| |
| def get_prefix(self) -> str: |
| return self.coredata.get_option(OptionKey('prefix')) |
| |
| def get_libdir(self) -> str: |
| return self.coredata.get_option(OptionKey('libdir')) |
| |
| def get_libexecdir(self) -> str: |
| return self.coredata.get_option(OptionKey('libexecdir')) |
| |
| def get_bindir(self) -> str: |
| return self.coredata.get_option(OptionKey('bindir')) |
| |
| def get_includedir(self) -> str: |
| return self.coredata.get_option(OptionKey('includedir')) |
| |
| def get_mandir(self) -> str: |
| return self.coredata.get_option(OptionKey('mandir')) |
| |
| def get_datadir(self) -> str: |
| return self.coredata.get_option(OptionKey('datadir')) |
| |
| def get_compiler_system_lib_dirs(self, for_machine: MachineChoice) -> T.List[str]: |
| for comp in self.coredata.compilers[for_machine].values(): |
| if comp.id == 'clang': |
| index = 1 |
| break |
| elif comp.id == 'gcc': |
| index = 2 |
| break |
| else: |
| # This option is only supported by gcc and clang. If we don't get a |
| # GCC or Clang compiler return and empty list. |
| return [] |
| |
| p, out, _ = Popen_safe(comp.get_exelist() + ['-print-search-dirs']) |
| if p.returncode != 0: |
| raise mesonlib.MesonException('Could not calculate system search dirs') |
| out = out.split('\n')[index].lstrip('libraries: =').split(':') |
| return [os.path.normpath(p) for p in out] |
| |
| def get_compiler_system_include_dirs(self, for_machine: MachineChoice) -> T.List[str]: |
| for comp in self.coredata.compilers[for_machine].values(): |
| if comp.id == 'clang': |
| break |
| elif comp.id == 'gcc': |
| break |
| else: |
| # This option is only supported by gcc and clang. If we don't get a |
| # GCC or Clang compiler return and empty list. |
| return [] |
| return comp.get_default_include_dirs() |
| |
| def need_exe_wrapper(self, for_machine: MachineChoice = MachineChoice.HOST): |
| value = self.properties[for_machine].get('needs_exe_wrapper', None) |
| if value is not None: |
| return value |
| return not machine_info_can_run(self.machines[for_machine]) |
| |
| def get_exe_wrapper(self) -> T.Optional[ExternalProgram]: |
| if not self.need_exe_wrapper(): |
| return None |
| return self.exe_wrapper |
| |
| def has_exe_wrapper(self) -> bool: |
| return self.exe_wrapper and self.exe_wrapper.found() |
