mirror of https://github.com/python/cpython
328 lines
11 KiB
Python
328 lines
11 KiB
Python
"""distutils.msvccompiler
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Contains MSVCCompiler, an implementation of the abstract CCompiler class
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for the Microsoft Visual Studio.
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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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import sys, os
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from distutils.errors import DistutilsPlatformError
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from distutils.ccompiler import CCompiler
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from distutils import log
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_can_read_reg = False
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try:
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import winreg
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_can_read_reg = True
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hkey_mod = winreg
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RegOpenKeyEx = winreg.OpenKeyEx
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RegEnumKey = winreg.EnumKey
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RegEnumValue = winreg.EnumValue
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RegError = winreg.error
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except ImportError:
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try:
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import win32api
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import win32con
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_can_read_reg = True
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hkey_mod = win32con
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RegOpenKeyEx = win32api.RegOpenKeyEx
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RegEnumKey = win32api.RegEnumKey
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RegEnumValue = win32api.RegEnumValue
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RegError = win32api.error
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except ImportError:
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log.info("Warning: Can't read registry to find the "
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"necessary compiler setting\n"
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"Make sure that Python modules winreg, "
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"win32api or win32con are installed.")
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if _can_read_reg:
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HKEYS = (hkey_mod.HKEY_USERS,
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hkey_mod.HKEY_CURRENT_USER,
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hkey_mod.HKEY_LOCAL_MACHINE,
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hkey_mod.HKEY_CLASSES_ROOT)
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def read_keys(base, key):
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"""Return list of registry keys."""
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try:
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handle = RegOpenKeyEx(base, key)
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except RegError:
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return None
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L = []
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i = 0
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while True:
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try:
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k = RegEnumKey(handle, i)
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except RegError:
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break
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L.append(k)
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i += 1
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return L
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def read_values(base, key):
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"""Return dict of registry keys and values.
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All names are converted to lowercase.
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"""
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try:
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handle = RegOpenKeyEx(base, key)
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except RegError:
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return None
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d = {}
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i = 0
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while True:
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try:
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name, value, type = RegEnumValue(handle, i)
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except RegError:
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break
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name = name.lower()
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d[convert_mbcs(name)] = convert_mbcs(value)
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i += 1
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return d
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def convert_mbcs(s):
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dec = getattr(s, "decode", None)
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if dec is not None:
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try:
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s = dec("mbcs")
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except UnicodeError:
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pass
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return s
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class MacroExpander:
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def __init__(self, version):
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self.macros = {}
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self.load_macros(version)
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def set_macro(self, macro, path, key):
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for base in HKEYS:
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d = read_values(base, path)
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if d:
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self.macros["$(%s)" % macro] = d[key]
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break
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def load_macros(self, version):
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vsbase = r"Software\Microsoft\VisualStudio\%0.1f" % version
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self.set_macro("VCInstallDir", vsbase + r"\Setup\VC", "productdir")
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self.set_macro("VSInstallDir", vsbase + r"\Setup\VS", "productdir")
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net = r"Software\Microsoft\.NETFramework"
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self.set_macro("FrameworkDir", net, "installroot")
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try:
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if version > 7.0:
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self.set_macro("FrameworkSDKDir", net, "sdkinstallrootv1.1")
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else:
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self.set_macro("FrameworkSDKDir", net, "sdkinstallroot")
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except KeyError as exc: #
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raise DistutilsPlatformError(
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"""Python was built with Visual Studio 2003;
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extensions must be built with a compiler than can generate compatible binaries.
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Visual Studio 2003 was not found on this system. If you have Cygwin installed,
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you can try compiling with MingW32, by passing "-c mingw32" to setup.py.""")
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p = r"Software\Microsoft\NET Framework Setup\Product"
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for base in HKEYS:
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try:
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h = RegOpenKeyEx(base, p)
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except RegError:
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continue
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key = RegEnumKey(h, 0)
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d = read_values(base, r"%s\%s" % (p, key))
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self.macros["$(FrameworkVersion)"] = d["version"]
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def sub(self, s):
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for k, v in self.macros.items():
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s = s.replace(k, v)
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return s
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def get_build_version():
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"""Return the version of MSVC that was used to build Python.
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For Python 2.3 and up, the version number is included in
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sys.version. For earlier versions, assume the compiler is MSVC 6.
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"""
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prefix = "MSC v."
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i = sys.version.find(prefix)
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if i == -1:
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return 6
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i = i + len(prefix)
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s, rest = sys.version[i:].split(" ", 1)
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majorVersion = int(s[:-2]) - 6
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if majorVersion >= 13:
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# v13 was skipped and should be v14
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majorVersion += 1
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minorVersion = int(s[2:3]) / 10.0
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# I don't think paths are affected by minor version in version 6
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if majorVersion == 6:
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minorVersion = 0
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if majorVersion >= 6:
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return majorVersion + minorVersion
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# else we don't know what version of the compiler this is
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return None
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def get_build_architecture():
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"""Return the processor architecture.
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Possible results are "Intel" or "AMD64".
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"""
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prefix = " bit ("
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i = sys.version.find(prefix)
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if i == -1:
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return "Intel"
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j = sys.version.find(")", i)
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return sys.version[i+len(prefix):j]
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def normalize_and_reduce_paths(paths):
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"""Return a list of normalized paths with duplicates removed.
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The current order of paths is maintained.
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"""
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# Paths are normalized so things like: /a and /a/ aren't both preserved.
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reduced_paths = []
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for p in paths:
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np = os.path.normpath(p)
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# XXX(nnorwitz): O(n**2), if reduced_paths gets long perhaps use a set.
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if np not in reduced_paths:
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reduced_paths.append(np)
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return reduced_paths
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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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self.__version = get_build_version()
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self.__arch = get_build_architecture()
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if self.__arch == "Intel":
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# x86
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if self.__version >= 7:
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self.__root = r"Software\Microsoft\VisualStudio"
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self.__macros = MacroExpander(self.__version)
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else:
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self.__root = r"Software\Microsoft\Devstudio"
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self.__product = "Visual Studio version %s" % self.__version
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else:
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# Win64. Assume this was built with the platform SDK
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self.__product = "Microsoft SDK compiler %s" % (self.__version + 6)
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self.initialized = False
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# -- Miscellaneous methods -----------------------------------------
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# Helper methods for using the MSVC registry settings
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def find_exe(self, exe):
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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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for p in self.__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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# didn't find it; try existing path
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for p in os.environ['Path'].split(';'):
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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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def get_msvc_paths(self, path, platform='x86'):
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"""Get a list of devstudio directories (include, lib or path).
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Return a list of strings. The list will be empty if unable to
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access the registry or appropriate registry keys not found.
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"""
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if not _can_read_reg:
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return []
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path = path + " dirs"
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if self.__version >= 7:
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key = (r"%s\%0.1f\VC\VC_OBJECTS_PLATFORM_INFO\Win32\Directories"
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% (self.__root, self.__version))
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else:
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key = (r"%s\6.0\Build System\Components\Platforms"
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r"\Win32 (%s)\Directories" % (self.__root, platform))
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for base in HKEYS:
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d = read_values(base, key)
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if d:
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if self.__version >= 7:
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return self.__macros.sub(d[path]).split(";")
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else:
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return d[path].split(";")
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# MSVC 6 seems to create the registry entries we need only when
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# the GUI is run.
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if self.__version == 6:
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for base in HKEYS:
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if read_values(base, r"%s\6.0" % self.__root) is not None:
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self.warn("It seems you have Visual Studio 6 installed, "
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"but the expected registry settings are not present.\n"
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"You must at least run the Visual Studio GUI once "
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"so that these entries are created.")
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break
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return []
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def set_path_env_var(self, name):
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"""Set environment variable 'name' to an MSVC path type value.
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This is equivalent to a SET command prior to execution of spawned
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commands.
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"""
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if name == "lib":
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p = self.get_msvc_paths("library")
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else:
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p = self.get_msvc_paths(name)
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if p:
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os.environ[name] = ';'.join(p)
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if get_build_version() >= 8.0:
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log.debug("Importing new compiler from distutils.msvc9compiler")
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OldMSVCCompiler = MSVCCompiler
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from distutils.msvc9compiler import MSVCCompiler
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# get_build_architecture not really relevant now we support cross-compile
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from distutils.msvc9compiler import MacroExpander
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