# Copyright 2013-2017 The Meson development team # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # http://www.apache.org/licenses/LICENSE-2.0 # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # This file contains the detection logic for miscellaneous external dependencies. import glob import os import re import shlex import stat import shutil import sysconfig from .. import mlog from .. import mesonlib from ..mesonlib import Popen_safe from ..environment import detect_cpu_family from .base import DependencyException, DependencyMethods from .base import ExternalDependency, ExternalProgram, ExtraFrameworkDependency, PkgConfigDependency class BoostDependency(ExternalDependency): # Some boost libraries have different names for # their sources and libraries. This dict maps # between the two. name2lib = {'test': 'unit_test_framework'} def __init__(self, environment, kwargs): super().__init__('boost', environment, 'cpp', kwargs) self.libdir = None try: self.boost_root = os.environ['BOOST_ROOT'] if not os.path.isabs(self.boost_root): raise DependencyException('BOOST_ROOT must be an absolute path.') except KeyError: self.boost_root = None if self.boost_root is None: if self.want_cross: if 'BOOST_INCLUDEDIR' in os.environ: self.incdir = os.environ['BOOST_INCLUDEDIR'] else: raise DependencyException('BOOST_ROOT or BOOST_INCLUDEDIR is needed while cross-compiling') if mesonlib.is_windows(): self.boost_root = self.detect_win_root() self.incdir = self.boost_root else: if 'BOOST_INCLUDEDIR' in os.environ: self.incdir = os.environ['BOOST_INCLUDEDIR'] else: self.incdir = '/usr/include' if 'BOOST_LIBRARYDIR' in os.environ: self.libdir = os.environ['BOOST_LIBRARYDIR'] else: self.incdir = os.path.join(self.boost_root, 'include') self.boost_inc_subdir = os.path.join(self.incdir, 'boost') mlog.debug('Boost library root dir is', self.boost_root) self.src_modules = {} self.lib_modules = {} self.lib_modules_mt = {} self.detect_version() self.requested_modules = self.get_requested(kwargs) module_str = ', '.join(self.requested_modules) if self.is_found: self.detect_src_modules() self.detect_lib_modules() self.validate_requested() if self.boost_root is not None: info = self.version + ', ' + self.boost_root else: info = self.version mlog.log('Dependency Boost (%s) found:' % module_str, mlog.green('YES'), info) else: mlog.log("Dependency Boost (%s) found:" % module_str, mlog.red('NO')) def detect_win_root(self): globtext = 'c:\\local\\boost_*' files = glob.glob(globtext) if len(files) > 0: return files[0] return 'C:\\' def get_compile_args(self): args = [] if self.boost_root is not None: if mesonlib.is_windows(): include_dir = self.boost_root else: include_dir = os.path.join(self.boost_root, 'include') else: include_dir = self.incdir # Use "-isystem" when including boost headers instead of "-I" # to avoid compiler warnings/failures when "-Werror" is used # Careful not to use "-isystem" on default include dirs as it # breaks some of the headers for certain gcc versions # For example, doing g++ -isystem /usr/include on a simple # "int main()" source results in the error: # "/usr/include/c++/6.3.1/cstdlib:75:25: fatal error: stdlib.h: No such file or directory" # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70129 # and http://stackoverflow.com/questions/37218953/isystem-on-a-system-include-directory-causes-errors # for more details # TODO: The correct solution would probably be to ask the # compiler for it's default include paths (ie: "gcc -xc++ -E # -v -") and avoid including those with -isystem # For now, use -isystem for all includes except for some # typical defaults (which don't need to be included at all # since they are in the default include paths). These typical # defaults include the usual directories at the root of the # filesystem, but also any path that ends with those directory # names in order to handle cases like cross-compiling where we # might have a different sysroot. if not include_dir.endswith(('/usr/include', '/usr/local/include')): args.append("".join(self.compiler.get_include_args(include_dir, True))) return args def get_requested(self, kwargs): candidates = kwargs.get('modules', []) if not isinstance(candidates, list): candidates = [candidates] for c in candidates: if not isinstance(c, str): raise DependencyException('Boost module argument is not a string.') return candidates def validate_requested(self): for m in self.requested_modules: if m not in self.src_modules and m not in self.lib_modules and m + '-mt' not in self.lib_modules_mt: msg = 'Requested Boost module {!r} not found' raise DependencyException(msg.format(m)) def detect_version(self): try: ifile = open(os.path.join(self.boost_inc_subdir, 'version.hpp')) except FileNotFoundError: return with ifile: for line in ifile: if line.startswith("#define") and 'BOOST_LIB_VERSION' in line: ver = line.split()[-1] ver = ver[1:-1] self.version = ver.replace('_', '.') self.is_found = True return def detect_src_modules(self): for entry in os.listdir(self.boost_inc_subdir): entry = os.path.join(self.boost_inc_subdir, entry) if stat.S_ISDIR(os.stat(entry).st_mode): self.src_modules[os.path.split(entry)[-1]] = True def detect_lib_modules(self): if mesonlib.is_windows(): return self.detect_lib_modules_win() return self.detect_lib_modules_nix() def detect_lib_modules_win(self): arch = detect_cpu_family(self.env.coredata.compilers) # Guess the libdir if arch == 'x86': gl = 'lib32*' elif arch == 'x86_64': gl = 'lib64*' else: # Does anyone do Boost cross-compiling to other archs on Windows? gl = None # See if the libdir is valid if gl: libdir = glob.glob(os.path.join(self.boost_root, gl)) else: libdir = [] # Can't find libdir, bail if not libdir: return libdir = libdir[0] # Don't override what was set in the environment if self.libdir: self.libdir = libdir globber = 'libboost_*-gd-*.lib' if self.static else 'boost_*-gd-*.lib' # FIXME for entry in glob.glob(os.path.join(libdir, globber)): (_, fname) = os.path.split(entry) base = fname.split('_', 1)[1] modname = base.split('-', 1)[0] self.lib_modules_mt[modname] = fname def detect_lib_modules_nix(self): if self.static: libsuffix = 'a' elif mesonlib.is_osx() and not self.want_cross: libsuffix = 'dylib' else: libsuffix = 'so' globber = 'libboost_*.{}'.format(libsuffix) if self.libdir: libdirs = [self.libdir] elif self.boost_root is None: libdirs = mesonlib.get_library_dirs() else: libdirs = [os.path.join(self.boost_root, 'lib')] for libdir in libdirs: for entry in glob.glob(os.path.join(libdir, globber)): lib = os.path.basename(entry) name = lib.split('.')[0].split('_', 1)[-1] # I'm not 100% sure what to do here. Some distros # have modules such as thread only as -mt versions. if entry.endswith('-mt.{}'.format(libsuffix)): self.lib_modules_mt[name] = True else: self.lib_modules[name] = True def get_win_link_args(self): args = [] # TODO: should this check self.libdir? if self.boost_root: args.append('-L' + self.libdir) for module in self.requested_modules: module = BoostDependency.name2lib.get(module, module) if module in self.lib_modules_mt: args.append(self.lib_modules_mt[module]) return args def get_link_args(self): if mesonlib.is_windows(): return self.get_win_link_args() args = [] if self.boost_root: args.append('-L' + os.path.join(self.boost_root, 'lib')) elif self.libdir: args.append('-L' + self.libdir) for module in self.requested_modules: module = BoostDependency.name2lib.get(module, module) libname = 'boost_' + module # The compiler's library detector is the most reliable so use that first. default_detect = self.compiler.find_library(libname, self.env, []) if default_detect is not None: if module == 'unit_testing_framework': emon_args = self.compiler.find_library('boost_test_exec_monitor') else: emon_args = None args += default_detect if emon_args is not None: args += emon_args elif module in self.lib_modules or module in self.lib_modules_mt: linkcmd = '-l' + libname args.append(linkcmd) # FIXME a hack, but Boost's testing framework has a lot of # different options and it's hard to determine what to do # without feedback from actual users. Update this # as we get more bug reports. if module == 'unit_testing_framework': args.append('-lboost_test_exec_monitor') elif module + '-mt' in self.lib_modules_mt: linkcmd = '-lboost_' + module + '-mt' args.append(linkcmd) if module == 'unit_testing_framework': args.append('-lboost_test_exec_monitor-mt') return args def get_sources(self): return [] def need_threads(self): return 'thread' in self.requested_modules class MPIDependency(ExternalDependency): def __init__(self, environment, kwargs): language = kwargs.get('language', 'c') super().__init__('mpi', environment, language, kwargs) required = kwargs.pop('required', True) kwargs['required'] = False kwargs['silent'] = True self.is_found = False # NOTE: Only OpenMPI supplies a pkg-config file at the moment. if language == 'c': env_vars = ['MPICC'] pkgconfig_files = ['ompi-c'] default_wrappers = ['mpicc'] elif language == 'cpp': env_vars = ['MPICXX'] pkgconfig_files = ['ompi-cxx'] default_wrappers = ['mpic++', 'mpicxx', 'mpiCC'] elif language == 'fortran': env_vars = ['MPIFC', 'MPIF90', 'MPIF77'] pkgconfig_files = ['ompi-fort'] default_wrappers = ['mpifort', 'mpif90', 'mpif77'] else: raise DependencyException('Language {} is not supported with MPI.'.format(language)) for pkg in pkgconfig_files: try: pkgdep = PkgConfigDependency(pkg, environment, kwargs) if pkgdep.found(): self.compile_args = pkgdep.get_compile_args() self.link_args = pkgdep.get_link_args() self.version = pkgdep.get_version() self.is_found = True break except Exception: pass if not self.is_found: # Prefer environment. for var in env_vars: if var in os.environ: wrappers = [os.environ[var]] break else: # Or search for default wrappers. wrappers = default_wrappers for prog in wrappers: result = self._try_openmpi_wrapper(prog) if result is not None: self.is_found = True self.version = result[0] self.compile_args = self._filter_compile_args(result[1]) self.link_args = self._filter_link_args(result[2]) break result = self._try_other_wrapper(prog) if result is not None: self.is_found = True self.version = result[0] self.compile_args = self._filter_compile_args(result[1]) self.link_args = self._filter_link_args(result[2]) break if not self.is_found and mesonlib.is_windows(): result = self._try_msmpi() if result is not None: self.is_found = True self.version, self.compile_args, self.link_args = result if self.is_found: mlog.log('Dependency', mlog.bold(self.name), 'for', self.language, 'found:', mlog.green('YES'), self.version) else: mlog.log('Dependency', mlog.bold(self.name), 'for', self.language, 'found:', mlog.red('NO')) if required: raise DependencyException('MPI dependency {!r} not found'.format(self.name)) def _filter_compile_args(self, args): """ MPI wrappers return a bunch of garbage args. Drop -O2 and everything that is not needed. """ result = [] multi_args = ('-I', ) if self.language == 'fortran': fc = self.env.coredata.compilers['fortran'] multi_args += fc.get_module_incdir_args() include_next = False for f in args: if f.startswith(('-D', '-f') + multi_args) or f == '-pthread' \ or (f.startswith('-W') and f != '-Wall' and not f.startswith('-Werror')): result.append(f) if f in multi_args: # Path is a separate argument. include_next = True elif include_next: include_next = False result.append(f) return result def _filter_link_args(self, args): """ MPI wrappers return a bunch of garbage args. Drop -O2 and everything that is not needed. """ result = [] include_next = False for f in args: if f.startswith(('-L', '-l', '-Xlinker')) or f == '-pthread' \ or (f.startswith('-W') and f != '-Wall' and not f.startswith('-Werror')): result.append(f) if f in ('-L', '-Xlinker'): include_next = True elif include_next: include_next = False result.append(f) return result def _try_openmpi_wrapper(self, prog): prog = ExternalProgram(prog, silent=True) if prog.found(): cmd = prog.get_command() + ['--showme:compile'] p, o, e = mesonlib.Popen_safe(cmd) p.wait() if p.returncode != 0: mlog.debug('Command', mlog.bold(cmd), 'failed to run:') mlog.debug(mlog.bold('Standard output\n'), o) mlog.debug(mlog.bold('Standard error\n'), e) return cargs = shlex.split(o) cmd = prog.get_command() + ['--showme:link'] p, o, e = mesonlib.Popen_safe(cmd) p.wait() if p.returncode != 0: mlog.debug('Command', mlog.bold(cmd), 'failed to run:') mlog.debug(mlog.bold('Standard output\n'), o) mlog.debug(mlog.bold('Standard error\n'), e) return libs = shlex.split(o) cmd = prog.get_command() + ['--showme:version'] p, o, e = mesonlib.Popen_safe(cmd) p.wait() if p.returncode != 0: mlog.debug('Command', mlog.bold(cmd), 'failed to run:') mlog.debug(mlog.bold('Standard output\n'), o) mlog.debug(mlog.bold('Standard error\n'), e) return version = re.search('\d+.\d+.\d+', o) if version: version = version.group(0) else: version = 'none' return version, cargs, libs def _try_other_wrapper(self, prog): prog = ExternalProgram(prog, silent=True) if prog.found(): cmd = prog.get_command() + ['-show'] p, o, e = mesonlib.Popen_safe(cmd) p.wait() if p.returncode != 0: mlog.debug('Command', mlog.bold(cmd), 'failed to run:') mlog.debug(mlog.bold('Standard output\n'), o) mlog.debug(mlog.bold('Standard error\n'), e) return args = shlex.split(o) version = 'none' return version, args, args def _try_msmpi(self): if self.language == 'cpp': # MS-MPI does not support the C++ version of MPI, only the standard C API. return if 'MSMPI_INC' not in os.environ: return incdir = os.environ['MSMPI_INC'] arch = detect_cpu_family(self.env.coredata.compilers) if arch == 'x86': if 'MSMPI_LIB32' not in os.environ: return libdir = os.environ['MSMPI_LIB32'] post = 'x86' elif arch == 'x86_64': if 'MSMPI_LIB64' not in os.environ: return libdir = os.environ['MSMPI_LIB64'] post = 'x64' else: return if self.language == 'fortran': return ('none', ['-I' + incdir, '-I' + os.path.join(incdir, post)], [os.path.join(libdir, 'msmpi.lib'), os.path.join(libdir, 'msmpifec.lib')]) else: return ('none', ['-I' + incdir, '-I' + os.path.join(incdir, post)], [os.path.join(libdir, 'msmpi.lib')]) class ThreadDependency(ExternalDependency): def __init__(self, environment, kwargs): super().__init__('threads', environment, None, {}) self.name = 'threads' self.is_found = True mlog.log('Dependency', mlog.bold(self.name), 'found:', mlog.green('YES')) def need_threads(self): return True def get_version(self): return 'unknown' class Python3Dependency(ExternalDependency): def __init__(self, environment, kwargs): super().__init__('python3', environment, None, kwargs) self.name = 'python3' # We can only be sure that it is Python 3 at this point self.version = '3' if DependencyMethods.PKGCONFIG in self.methods: try: pkgdep = PkgConfigDependency('python3', environment, kwargs) if pkgdep.found(): self.compile_args = pkgdep.get_compile_args() self.link_args = pkgdep.get_link_args() self.version = pkgdep.get_version() self.is_found = True return except Exception: pass if not self.is_found: if mesonlib.is_windows() and DependencyMethods.SYSCONFIG in self.methods: self._find_libpy3_windows(environment) elif mesonlib.is_osx() and DependencyMethods.EXTRAFRAMEWORK in self.methods: # In OSX the Python 3 framework does not have a version # number in its name. fw = ExtraFrameworkDependency('python', False, None, self.env, self.language, kwargs) if fw.found(): self.compile_args = fw.get_compile_args() self.link_args = fw.get_link_args() self.is_found = True if self.is_found: mlog.log('Dependency', mlog.bold(self.name), 'found:', mlog.green('YES')) else: mlog.log('Dependency', mlog.bold(self.name), 'found:', mlog.red('NO')) def _find_libpy3_windows(self, env): ''' Find python3 libraries on Windows and also verify that the arch matches what we are building for. ''' pyarch = sysconfig.get_platform() arch = detect_cpu_family(env.coredata.compilers) if arch == 'x86': arch = '32' elif arch == 'x86_64': arch = '64' else: # We can't cross-compile Python 3 dependencies on Windows yet mlog.log('Unknown architecture {!r} for'.format(arch), mlog.bold(self.name)) self.is_found = False return # Pyarch ends in '32' or '64' if arch != pyarch[-2:]: mlog.log('Need', mlog.bold(self.name), 'for {}-bit, but found {}-bit'.format(arch, pyarch[-2:])) self.is_found = False return inc = sysconfig.get_path('include') platinc = sysconfig.get_path('platinclude') self.compile_args = ['-I' + inc] if inc != platinc: self.compile_args.append('-I' + platinc) # Nothing exposes this directly that I coulf find basedir = sysconfig.get_config_var('base') vernum = sysconfig.get_config_var('py_version_nodot') self.link_args = ['-L{}/libs'.format(basedir), '-lpython{}'.format(vernum)] self.version = sysconfig.get_config_var('py_version_short') self.is_found = True def get_methods(self): if mesonlib.is_windows(): return [DependencyMethods.PKGCONFIG, DependencyMethods.SYSCONFIG] elif mesonlib.is_osx(): return [DependencyMethods.PKGCONFIG, DependencyMethods.EXTRAFRAMEWORK] else: return [DependencyMethods.PKGCONFIG] class PcapDependency(ExternalDependency): def __init__(self, environment, kwargs): super().__init__('pcap', environment, None, kwargs) if DependencyMethods.PKGCONFIG in self.methods: try: kwargs['required'] = False pcdep = PkgConfigDependency('pcap', environment, kwargs) if pcdep.found(): self.type_name = 'pkgconfig' self.is_found = True self.compile_args = pcdep.get_compile_args() self.link_args = pcdep.get_link_args() self.version = pcdep.get_version() return except Exception as e: mlog.debug('Pcap not found via pkgconfig. Trying next, error was:', str(e)) if DependencyMethods.PCAPCONFIG in self.methods: pcapconf = shutil.which('pcap-config') if pcapconf: stdo = Popen_safe(['pcap-config', '--cflags'])[1] self.compile_args = stdo.strip().split() stdo = Popen_safe(['pcap-config', '--libs'])[1] self.link_args = stdo.strip().split() self.version = '0' self.is_found = True mlog.log('Dependency', mlog.bold('pcap'), 'found:', mlog.green('YES'), '(%s)' % pcapconf) return mlog.debug('Could not find pcap-config binary, trying next.') if DependencyMethods.EXTRAFRAMEWORK in self.methods: if mesonlib.is_osx(): fwdep = ExtraFrameworkDependency('pcap', False, None, self.env, self.language, kwargs) if fwdep.found(): self.is_found = True self.compile_args = fwdep.get_compile_args() self.link_args = fwdep.get_link_args() self.version = '2' # FIXME return mlog.log('Dependency', mlog.bold('pcap'), 'found:', mlog.red('NO')) def get_methods(self): if mesonlib.is_osx(): return [DependencyMethods.PKGCONFIG, DependencyMethods.PCAPCONFIG, DependencyMethods.EXTRAFRAMEWORK] else: return [DependencyMethods.PKGCONFIG, DependencyMethods.PCAPCONFIG]