545 lines
20 KiB
Python
545 lines
20 KiB
Python
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"""distutils._msvccompiler
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Contains MSVCCompiler, an implementation of the abstract CCompiler class
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for Microsoft Visual Studio 2015.
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The module is compatible with VS 2015 and later. You can find legacy support
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for older versions in distutils.msvc9compiler and distutils.msvccompiler.
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"""
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# Written by Perry Stoll
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# hacked by Robin Becker and Thomas Heller to do a better job of
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# finding DevStudio (through the registry)
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# ported to VS 2005 and VS 2008 by Christian Heimes
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# ported to VS 2015 by Steve Dower
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import os
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import shutil
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import stat
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import subprocess
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from distutils.errors import DistutilsExecError, DistutilsPlatformError, \
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CompileError, LibError, LinkError
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from distutils.ccompiler import CCompiler, gen_lib_options
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from distutils import log
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from distutils.util import get_platform
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import winreg
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from itertools import count
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def _find_vcvarsall(plat_spec):
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with winreg.OpenKeyEx(
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winreg.HKEY_LOCAL_MACHINE,
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r"Software\Microsoft\VisualStudio\SxS\VC7",
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access=winreg.KEY_READ | winreg.KEY_WOW64_32KEY
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) as key:
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if not key:
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log.debug("Visual C++ is not registered")
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return None, None
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best_version = 0
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best_dir = None
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for i in count():
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try:
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v, vc_dir, vt = winreg.EnumValue(key, i)
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except OSError:
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break
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if v and vt == winreg.REG_SZ and os.path.isdir(vc_dir):
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try:
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version = int(float(v))
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except (ValueError, TypeError):
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continue
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if version >= 14 and version > best_version:
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best_version, best_dir = version, vc_dir
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if not best_version:
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log.debug("No suitable Visual C++ version found")
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return None, None
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vcvarsall = os.path.join(best_dir, "vcvarsall.bat")
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if not os.path.isfile(vcvarsall):
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log.debug("%s cannot be found", vcvarsall)
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return None, None
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vcruntime = None
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vcruntime_spec = _VCVARS_PLAT_TO_VCRUNTIME_REDIST.get(plat_spec)
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if vcruntime_spec:
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vcruntime = os.path.join(best_dir,
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vcruntime_spec.format(best_version))
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if not os.path.isfile(vcruntime):
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log.debug("%s cannot be found", vcruntime)
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vcruntime = None
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return vcvarsall, vcruntime
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def _get_vc_env(plat_spec):
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if os.getenv("DISTUTILS_USE_SDK"):
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return {
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key.lower(): value
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for key, value in os.environ.items()
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}
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vcvarsall, vcruntime = _find_vcvarsall(plat_spec)
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if not vcvarsall:
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raise DistutilsPlatformError("Unable to find vcvarsall.bat")
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try:
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out = subprocess.check_output(
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'"{}" {} && set'.format(vcvarsall, plat_spec),
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shell=True,
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stderr=subprocess.STDOUT,
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universal_newlines=True,
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)
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except subprocess.CalledProcessError as exc:
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log.error(exc.output)
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raise DistutilsPlatformError("Error executing {}"
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.format(exc.cmd))
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env = {
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key.lower(): value
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for key, _, value in
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(line.partition('=') for line in out.splitlines())
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if key and value
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}
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if vcruntime:
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env['py_vcruntime_redist'] = vcruntime
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return env
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def _find_exe(exe, paths=None):
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"""Return path to an MSVC executable program.
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Tries to find the program in several places: first, one of the
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MSVC program search paths from the registry; next, the directories
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in the PATH environment variable. If any of those work, return an
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absolute path that is known to exist. If none of them work, just
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return the original program name, 'exe'.
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"""
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if not paths:
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paths = os.getenv('path').split(os.pathsep)
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for p in paths:
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fn = os.path.join(os.path.abspath(p), exe)
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if os.path.isfile(fn):
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return fn
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return exe
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# A map keyed by get_platform() return values to values accepted by
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# 'vcvarsall.bat'. Note a cross-compile may combine these (eg, 'x86_amd64' is
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# the param to cross-compile on x86 targetting amd64.)
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PLAT_TO_VCVARS = {
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'win32' : 'x86',
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'win-amd64' : 'amd64',
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}
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# A map keyed by get_platform() return values to the file under
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# the VC install directory containing the vcruntime redistributable.
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_VCVARS_PLAT_TO_VCRUNTIME_REDIST = {
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'x86' : 'redist\\x86\\Microsoft.VC{0}0.CRT\\vcruntime{0}0.dll',
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'amd64' : 'redist\\x64\\Microsoft.VC{0}0.CRT\\vcruntime{0}0.dll',
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'x86_amd64' : 'redist\\x64\\Microsoft.VC{0}0.CRT\\vcruntime{0}0.dll',
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}
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# A set containing the DLLs that are guaranteed to be available for
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# all micro versions of this Python version. Known extension
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# dependencies that are not in this set will be copied to the output
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# path.
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_BUNDLED_DLLS = frozenset(['vcruntime140.dll'])
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class MSVCCompiler(CCompiler) :
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"""Concrete class that implements an interface to Microsoft Visual C++,
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as defined by the CCompiler abstract class."""
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compiler_type = 'msvc'
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# Just set this so CCompiler's constructor doesn't barf. We currently
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# don't use the 'set_executables()' bureaucracy provided by CCompiler,
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# as it really isn't necessary for this sort of single-compiler class.
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# Would be nice to have a consistent interface with UnixCCompiler,
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# though, so it's worth thinking about.
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executables = {}
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# Private class data (need to distinguish C from C++ source for compiler)
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_c_extensions = ['.c']
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_cpp_extensions = ['.cc', '.cpp', '.cxx']
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_rc_extensions = ['.rc']
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_mc_extensions = ['.mc']
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# Needed for the filename generation methods provided by the
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# base class, CCompiler.
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src_extensions = (_c_extensions + _cpp_extensions +
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_rc_extensions + _mc_extensions)
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res_extension = '.res'
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obj_extension = '.obj'
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static_lib_extension = '.lib'
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shared_lib_extension = '.dll'
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static_lib_format = shared_lib_format = '%s%s'
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exe_extension = '.exe'
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def __init__(self, verbose=0, dry_run=0, force=0):
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CCompiler.__init__ (self, verbose, dry_run, force)
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# target platform (.plat_name is consistent with 'bdist')
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self.plat_name = None
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self.initialized = False
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def initialize(self, plat_name=None):
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# multi-init means we would need to check platform same each time...
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assert not self.initialized, "don't init multiple times"
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if plat_name is None:
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plat_name = get_platform()
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# sanity check for platforms to prevent obscure errors later.
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if plat_name not in PLAT_TO_VCVARS:
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raise DistutilsPlatformError("--plat-name must be one of {}"
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.format(tuple(PLAT_TO_VCVARS)))
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# On x86, 'vcvarsall.bat amd64' creates an env that doesn't work;
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# to cross compile, you use 'x86_amd64'.
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# On AMD64, 'vcvarsall.bat amd64' is a native build env; to cross
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# compile use 'x86' (ie, it runs the x86 compiler directly)
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if plat_name == get_platform() or plat_name == 'win32':
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# native build or cross-compile to win32
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plat_spec = PLAT_TO_VCVARS[plat_name]
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else:
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# cross compile from win32 -> some 64bit
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plat_spec = '{}_{}'.format(
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PLAT_TO_VCVARS[get_platform()],
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PLAT_TO_VCVARS[plat_name]
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)
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vc_env = _get_vc_env(plat_spec)
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if not vc_env:
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raise DistutilsPlatformError("Unable to find a compatible "
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"Visual Studio installation.")
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self._paths = vc_env.get('path', '')
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paths = self._paths.split(os.pathsep)
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self.cc = _find_exe("cl.exe", paths)
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self.linker = _find_exe("link.exe", paths)
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self.lib = _find_exe("lib.exe", paths)
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self.rc = _find_exe("rc.exe", paths) # resource compiler
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self.mc = _find_exe("mc.exe", paths) # message compiler
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self.mt = _find_exe("mt.exe", paths) # message compiler
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self._vcruntime_redist = vc_env.get('py_vcruntime_redist', '')
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for dir in vc_env.get('include', '').split(os.pathsep):
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if dir:
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self.add_include_dir(dir)
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for dir in vc_env.get('lib', '').split(os.pathsep):
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if dir:
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self.add_library_dir(dir)
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self.preprocess_options = None
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# If vcruntime_redist is available, link against it dynamically. Otherwise,
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# use /MT[d] to build statically, then switch from libucrt[d].lib to ucrt[d].lib
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# later to dynamically link to ucrtbase but not vcruntime.
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self.compile_options = [
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'/nologo', '/Ox', '/W3', '/GL', '/DNDEBUG'
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]
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self.compile_options.append('/MD' if self._vcruntime_redist else '/MT')
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self.compile_options_debug = [
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'/nologo', '/Od', '/MDd', '/Zi', '/W3', '/D_DEBUG'
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]
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ldflags = [
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'/nologo', '/INCREMENTAL:NO', '/LTCG'
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]
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if not self._vcruntime_redist:
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ldflags.extend(('/nodefaultlib:libucrt.lib', 'ucrt.lib'))
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ldflags_debug = [
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'/nologo', '/INCREMENTAL:NO', '/LTCG', '/DEBUG:FULL'
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]
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self.ldflags_exe = [*ldflags, '/MANIFEST:EMBED,ID=1']
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self.ldflags_exe_debug = [*ldflags_debug, '/MANIFEST:EMBED,ID=1']
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self.ldflags_shared = [*ldflags, '/DLL', '/MANIFEST:EMBED,ID=2', '/MANIFESTUAC:NO']
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self.ldflags_shared_debug = [*ldflags_debug, '/DLL', '/MANIFEST:EMBED,ID=2', '/MANIFESTUAC:NO']
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self.ldflags_static = [*ldflags]
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self.ldflags_static_debug = [*ldflags_debug]
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self._ldflags = {
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(CCompiler.EXECUTABLE, None): self.ldflags_exe,
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(CCompiler.EXECUTABLE, False): self.ldflags_exe,
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(CCompiler.EXECUTABLE, True): self.ldflags_exe_debug,
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(CCompiler.SHARED_OBJECT, None): self.ldflags_shared,
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(CCompiler.SHARED_OBJECT, False): self.ldflags_shared,
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(CCompiler.SHARED_OBJECT, True): self.ldflags_shared_debug,
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(CCompiler.SHARED_LIBRARY, None): self.ldflags_static,
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(CCompiler.SHARED_LIBRARY, False): self.ldflags_static,
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(CCompiler.SHARED_LIBRARY, True): self.ldflags_static_debug,
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}
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self.initialized = True
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# -- Worker methods ------------------------------------------------
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def object_filenames(self,
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source_filenames,
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strip_dir=0,
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output_dir=''):
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ext_map = {
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**{ext: self.obj_extension for ext in self.src_extensions},
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**{ext: self.res_extension for ext in self._rc_extensions + self._mc_extensions},
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}
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output_dir = output_dir or ''
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def make_out_path(p):
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base, ext = os.path.splitext(p)
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if strip_dir:
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base = os.path.basename(base)
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else:
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_, base = os.path.splitdrive(base)
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if base.startswith((os.path.sep, os.path.altsep)):
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base = base[1:]
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try:
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# XXX: This may produce absurdly long paths. We should check
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# the length of the result and trim base until we fit within
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# 260 characters.
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return os.path.join(output_dir, base + ext_map[ext])
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except LookupError:
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# Better to raise an exception instead of silently continuing
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# and later complain about sources and targets having
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# different lengths
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raise CompileError("Don't know how to compile {}".format(p))
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return list(map(make_out_path, source_filenames))
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def compile(self, sources,
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output_dir=None, macros=None, include_dirs=None, debug=0,
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extra_preargs=None, extra_postargs=None, depends=None):
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if not self.initialized:
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self.initialize()
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compile_info = self._setup_compile(output_dir, macros, include_dirs,
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sources, depends, extra_postargs)
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macros, objects, extra_postargs, pp_opts, build = compile_info
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compile_opts = extra_preargs or []
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compile_opts.append('/c')
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if debug:
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compile_opts.extend(self.compile_options_debug)
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else:
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compile_opts.extend(self.compile_options)
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add_cpp_opts = False
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for obj in objects:
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try:
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src, ext = build[obj]
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except KeyError:
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continue
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if debug:
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# pass the full pathname to MSVC in debug mode,
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# this allows the debugger to find the source file
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# without asking the user to browse for it
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src = os.path.abspath(src)
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if ext in self._c_extensions:
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input_opt = "/Tc" + src
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elif ext in self._cpp_extensions:
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input_opt = "/Tp" + src
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add_cpp_opts = True
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elif ext in self._rc_extensions:
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# compile .RC to .RES file
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input_opt = src
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output_opt = "/fo" + obj
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try:
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self.spawn([self.rc] + pp_opts + [output_opt, input_opt])
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|
except DistutilsExecError as msg:
|
||
|
|
raise CompileError(msg)
|
||
|
|
continue
|
||
|
|
elif ext in self._mc_extensions:
|
||
|
|
# Compile .MC to .RC file to .RES file.
|
||
|
|
# * '-h dir' specifies the directory for the
|
||
|
|
# generated include file
|
||
|
|
# * '-r dir' specifies the target directory of the
|
||
|
|
# generated RC file and the binary message resource
|
||
|
|
# it includes
|
||
|
|
#
|
||
|
|
# For now (since there are no options to change this),
|
||
|
|
# we use the source-directory for the include file and
|
||
|
|
# the build directory for the RC file and message
|
||
|
|
# resources. This works at least for win32all.
|
||
|
|
h_dir = os.path.dirname(src)
|
||
|
|
rc_dir = os.path.dirname(obj)
|
||
|
|
try:
|
||
|
|
# first compile .MC to .RC and .H file
|
||
|
|
self.spawn([self.mc, '-h', h_dir, '-r', rc_dir, src])
|
||
|
|
base, _ = os.path.splitext(os.path.basename (src))
|
||
|
|
rc_file = os.path.join(rc_dir, base + '.rc')
|
||
|
|
# then compile .RC to .RES file
|
||
|
|
self.spawn([self.rc, "/fo" + obj, rc_file])
|
||
|
|
|
||
|
|
except DistutilsExecError as msg:
|
||
|
|
raise CompileError(msg)
|
||
|
|
continue
|
||
|
|
else:
|
||
|
|
# how to handle this file?
|
||
|
|
raise CompileError("Don't know how to compile {} to {}"
|
||
|
|
.format(src, obj))
|
||
|
|
|
||
|
|
args = [self.cc] + compile_opts + pp_opts
|
||
|
|
if add_cpp_opts:
|
||
|
|
args.append('/EHsc')
|
||
|
|
args.append(input_opt)
|
||
|
|
args.append("/Fo" + obj)
|
||
|
|
args.extend(extra_postargs)
|
||
|
|
|
||
|
|
try:
|
||
|
|
self.spawn(args)
|
||
|
|
except DistutilsExecError as msg:
|
||
|
|
raise CompileError(msg)
|
||
|
|
|
||
|
|
return objects
|
||
|
|
|
||
|
|
|
||
|
|
def create_static_lib(self,
|
||
|
|
objects,
|
||
|
|
output_libname,
|
||
|
|
output_dir=None,
|
||
|
|
debug=0,
|
||
|
|
target_lang=None):
|
||
|
|
|
||
|
|
if not self.initialized:
|
||
|
|
self.initialize()
|
||
|
|
objects, output_dir = self._fix_object_args(objects, output_dir)
|
||
|
|
output_filename = self.library_filename(output_libname,
|
||
|
|
output_dir=output_dir)
|
||
|
|
|
||
|
|
if self._need_link(objects, output_filename):
|
||
|
|
lib_args = objects + ['/OUT:' + output_filename]
|
||
|
|
if debug:
|
||
|
|
pass # XXX what goes here?
|
||
|
|
try:
|
||
|
|
log.debug('Executing "%s" %s', self.lib, ' '.join(lib_args))
|
||
|
|
self.spawn([self.lib] + lib_args)
|
||
|
|
except DistutilsExecError as msg:
|
||
|
|
raise LibError(msg)
|
||
|
|
else:
|
||
|
|
log.debug("skipping %s (up-to-date)", output_filename)
|
||
|
|
|
||
|
|
|
||
|
|
def link(self,
|
||
|
|
target_desc,
|
||
|
|
objects,
|
||
|
|
output_filename,
|
||
|
|
output_dir=None,
|
||
|
|
libraries=None,
|
||
|
|
library_dirs=None,
|
||
|
|
runtime_library_dirs=None,
|
||
|
|
export_symbols=None,
|
||
|
|
debug=0,
|
||
|
|
extra_preargs=None,
|
||
|
|
extra_postargs=None,
|
||
|
|
build_temp=None,
|
||
|
|
target_lang=None):
|
||
|
|
|
||
|
|
if not self.initialized:
|
||
|
|
self.initialize()
|
||
|
|
objects, output_dir = self._fix_object_args(objects, output_dir)
|
||
|
|
fixed_args = self._fix_lib_args(libraries, library_dirs,
|
||
|
|
runtime_library_dirs)
|
||
|
|
libraries, library_dirs, runtime_library_dirs = fixed_args
|
||
|
|
|
||
|
|
if runtime_library_dirs:
|
||
|
|
self.warn("I don't know what to do with 'runtime_library_dirs': "
|
||
|
|
+ str(runtime_library_dirs))
|
||
|
|
|
||
|
|
lib_opts = gen_lib_options(self,
|
||
|
|
library_dirs, runtime_library_dirs,
|
||
|
|
libraries)
|
||
|
|
if output_dir is not None:
|
||
|
|
output_filename = os.path.join(output_dir, output_filename)
|
||
|
|
|
||
|
|
if self._need_link(objects, output_filename):
|
||
|
|
ldflags = self._ldflags[target_desc, debug]
|
||
|
|
|
||
|
|
export_opts = ["/EXPORT:" + sym for sym in (export_symbols or [])]
|
||
|
|
|
||
|
|
ld_args = (ldflags + lib_opts + export_opts +
|
||
|
|
objects + ['/OUT:' + output_filename])
|
||
|
|
|
||
|
|
# The MSVC linker generates .lib and .exp files, which cannot be
|
||
|
|
# suppressed by any linker switches. The .lib files may even be
|
||
|
|
# needed! Make sure they are generated in the temporary build
|
||
|
|
# directory. Since they have different names for debug and release
|
||
|
|
# builds, they can go into the same directory.
|
||
|
|
build_temp = os.path.dirname(objects[0])
|
||
|
|
if export_symbols is not None:
|
||
|
|
(dll_name, dll_ext) = os.path.splitext(
|
||
|
|
os.path.basename(output_filename))
|
||
|
|
implib_file = os.path.join(
|
||
|
|
build_temp,
|
||
|
|
self.library_filename(dll_name))
|
||
|
|
ld_args.append ('/IMPLIB:' + implib_file)
|
||
|
|
|
||
|
|
if extra_preargs:
|
||
|
|
ld_args[:0] = extra_preargs
|
||
|
|
if extra_postargs:
|
||
|
|
ld_args.extend(extra_postargs)
|
||
|
|
|
||
|
|
output_dir = os.path.dirname(os.path.abspath(output_filename))
|
||
|
|
self.mkpath(output_dir)
|
||
|
|
try:
|
||
|
|
log.debug('Executing "%s" %s', self.linker, ' '.join(ld_args))
|
||
|
|
self.spawn([self.linker] + ld_args)
|
||
|
|
self._copy_vcruntime(output_dir)
|
||
|
|
except DistutilsExecError as msg:
|
||
|
|
raise LinkError(msg)
|
||
|
|
else:
|
||
|
|
log.debug("skipping %s (up-to-date)", output_filename)
|
||
|
|
|
||
|
|
def _copy_vcruntime(self, output_dir):
|
||
|
|
vcruntime = self._vcruntime_redist
|
||
|
|
if not vcruntime or not os.path.isfile(vcruntime):
|
||
|
|
return
|
||
|
|
|
||
|
|
if os.path.basename(vcruntime).lower() in _BUNDLED_DLLS:
|
||
|
|
return
|
||
|
|
|
||
|
|
log.debug('Copying "%s"', vcruntime)
|
||
|
|
vcruntime = shutil.copy(vcruntime, output_dir)
|
||
|
|
os.chmod(vcruntime, stat.S_IWRITE)
|
||
|
|
|
||
|
|
def spawn(self, cmd):
|
||
|
|
old_path = os.getenv('path')
|
||
|
|
try:
|
||
|
|
os.environ['path'] = self._paths
|
||
|
|
return super().spawn(cmd)
|
||
|
|
finally:
|
||
|
|
os.environ['path'] = old_path
|
||
|
|
|
||
|
|
# -- Miscellaneous methods -----------------------------------------
|
||
|
|
# These are all used by the 'gen_lib_options() function, in
|
||
|
|
# ccompiler.py.
|
||
|
|
|
||
|
|
def library_dir_option(self, dir):
|
||
|
|
return "/LIBPATH:" + dir
|
||
|
|
|
||
|
|
def runtime_library_dir_option(self, dir):
|
||
|
|
raise DistutilsPlatformError(
|
||
|
|
"don't know how to set runtime library search path for MSVC")
|
||
|
|
|
||
|
|
def library_option(self, lib):
|
||
|
|
return self.library_filename(lib)
|
||
|
|
|
||
|
|
def find_library_file(self, dirs, lib, debug=0):
|
||
|
|
# Prefer a debugging library if found (and requested), but deal
|
||
|
|
# with it if we don't have one.
|
||
|
|
if debug:
|
||
|
|
try_names = [lib + "_d", lib]
|
||
|
|
else:
|
||
|
|
try_names = [lib]
|
||
|
|
for dir in dirs:
|
||
|
|
for name in try_names:
|
||
|
|
libfile = os.path.join(dir, self.library_filename(name))
|
||
|
|
if os.path.isfile(libfile):
|
||
|
|
return libfile
|
||
|
|
else:
|
||
|
|
# Oops, didn't find it in *any* of 'dirs'
|
||
|
|
return None
|