| """distutils.msvccompiler |
| |
| Contains MSVCCompiler, an implementation of the abstract CCompiler class |
| for the Microsoft Visual Studio. |
| """ |
| |
| # Written by Perry Stoll |
| # hacked by Robin Becker and Thomas Heller to do a better job of |
| # finding DevStudio (through the registry) |
| |
| import sys, os |
| from distutils.errors import DistutilsPlatformError |
| from distutils.ccompiler import CCompiler |
| from distutils import log |
| |
| _can_read_reg = False |
| try: |
| import winreg |
| |
| _can_read_reg = True |
| hkey_mod = winreg |
| |
| RegOpenKeyEx = winreg.OpenKeyEx |
| RegEnumKey = winreg.EnumKey |
| RegEnumValue = winreg.EnumValue |
| RegError = winreg.error |
| |
| except ImportError: |
| try: |
| import win32api |
| import win32con |
| _can_read_reg = True |
| hkey_mod = win32con |
| |
| RegOpenKeyEx = win32api.RegOpenKeyEx |
| RegEnumKey = win32api.RegEnumKey |
| RegEnumValue = win32api.RegEnumValue |
| RegError = win32api.error |
| except ImportError: |
| log.info("Warning: Can't read registry to find the " |
| "necessary compiler setting\n" |
| "Make sure that Python modules winreg, " |
| "win32api or win32con are installed.") |
| |
| if _can_read_reg: |
| HKEYS = (hkey_mod.HKEY_USERS, |
| hkey_mod.HKEY_CURRENT_USER, |
| hkey_mod.HKEY_LOCAL_MACHINE, |
| hkey_mod.HKEY_CLASSES_ROOT) |
| |
| def read_keys(base, key): |
| """Return list of registry keys.""" |
| try: |
| handle = RegOpenKeyEx(base, key) |
| except RegError: |
| return None |
| L = [] |
| i = 0 |
| while True: |
| try: |
| k = RegEnumKey(handle, i) |
| except RegError: |
| break |
| L.append(k) |
| i += 1 |
| return L |
| |
| def read_values(base, key): |
| """Return dict of registry keys and values. |
| |
| All names are converted to lowercase. |
| """ |
| try: |
| handle = RegOpenKeyEx(base, key) |
| except RegError: |
| return None |
| d = {} |
| i = 0 |
| while True: |
| try: |
| name, value, type = RegEnumValue(handle, i) |
| except RegError: |
| break |
| name = name.lower() |
| d[convert_mbcs(name)] = convert_mbcs(value) |
| i += 1 |
| return d |
| |
| def convert_mbcs(s): |
| dec = getattr(s, "decode", None) |
| if dec is not None: |
| try: |
| s = dec("mbcs") |
| except UnicodeError: |
| pass |
| return s |
| |
| class MacroExpander: |
| def __init__(self, version): |
| self.macros = {} |
| self.load_macros(version) |
| |
| def set_macro(self, macro, path, key): |
| for base in HKEYS: |
| d = read_values(base, path) |
| if d: |
| self.macros["$(%s)" % macro] = d[key] |
| break |
| |
| def load_macros(self, version): |
| vsbase = r"Software\Microsoft\VisualStudio\%0.1f" % version |
| self.set_macro("VCInstallDir", vsbase + r"\Setup\VC", "productdir") |
| self.set_macro("VSInstallDir", vsbase + r"\Setup\VS", "productdir") |
| net = r"Software\Microsoft\.NETFramework" |
| self.set_macro("FrameworkDir", net, "installroot") |
| try: |
| if version > 7.0: |
| self.set_macro("FrameworkSDKDir", net, "sdkinstallrootv1.1") |
| else: |
| self.set_macro("FrameworkSDKDir", net, "sdkinstallroot") |
| except KeyError as exc: # |
| raise DistutilsPlatformError( |
| """Python was built with Visual Studio 2003; |
| extensions must be built with a compiler than can generate compatible binaries. |
| Visual Studio 2003 was not found on this system. If you have Cygwin installed, |
| you can try compiling with MingW32, by passing "-c mingw32" to setup.py.""") |
| |
| p = r"Software\Microsoft\NET Framework Setup\Product" |
| for base in HKEYS: |
| try: |
| h = RegOpenKeyEx(base, p) |
| except RegError: |
| continue |
| key = RegEnumKey(h, 0) |
| d = read_values(base, r"%s\%s" % (p, key)) |
| self.macros["$(FrameworkVersion)"] = d["version"] |
| |
| def sub(self, s): |
| for k, v in self.macros.items(): |
| s = s.replace(k, v) |
| return s |
| |
| def get_build_version(): |
| """Return the version of MSVC that was used to build Python. |
| |
| For Python 2.3 and up, the version number is included in |
| sys.version. For earlier versions, assume the compiler is MSVC 6. |
| """ |
| prefix = "MSC v." |
| i = sys.version.find(prefix) |
| if i == -1: |
| return 6 |
| i = i + len(prefix) |
| s, rest = sys.version[i:].split(" ", 1) |
| majorVersion = int(s[:-2]) - 6 |
| if majorVersion >= 13: |
| # v13 was skipped and should be v14 |
| majorVersion += 1 |
| minorVersion = int(s[2:3]) / 10.0 |
| # I don't think paths are affected by minor version in version 6 |
| if majorVersion == 6: |
| minorVersion = 0 |
| if majorVersion >= 6: |
| return majorVersion + minorVersion |
| # else we don't know what version of the compiler this is |
| return None |
| |
| def get_build_architecture(): |
| """Return the processor architecture. |
| |
| Possible results are "Intel" or "AMD64". |
| """ |
| |
| prefix = " bit (" |
| i = sys.version.find(prefix) |
| if i == -1: |
| return "Intel" |
| j = sys.version.find(")", i) |
| return sys.version[i+len(prefix):j] |
| |
| def normalize_and_reduce_paths(paths): |
| """Return a list of normalized paths with duplicates removed. |
| |
| The current order of paths is maintained. |
| """ |
| # Paths are normalized so things like: /a and /a/ aren't both preserved. |
| reduced_paths = [] |
| for p in paths: |
| np = os.path.normpath(p) |
| # XXX(nnorwitz): O(n**2), if reduced_paths gets long perhaps use a set. |
| if np not in reduced_paths: |
| reduced_paths.append(np) |
| return reduced_paths |
| |
| |
| class MSVCCompiler(CCompiler) : |
| """Concrete class that implements an interface to Microsoft Visual C++, |
| as defined by the CCompiler abstract class.""" |
| |
| compiler_type = 'msvc' |
| |
| # Just set this so CCompiler's constructor doesn't barf. We currently |
| # don't use the 'set_executables()' bureaucracy provided by CCompiler, |
| # as it really isn't necessary for this sort of single-compiler class. |
| # Would be nice to have a consistent interface with UnixCCompiler, |
| # though, so it's worth thinking about. |
| executables = {} |
| |
| # Private class data (need to distinguish C from C++ source for compiler) |
| _c_extensions = ['.c'] |
| _cpp_extensions = ['.cc', '.cpp', '.cxx'] |
| _rc_extensions = ['.rc'] |
| _mc_extensions = ['.mc'] |
| |
| # Needed for the filename generation methods provided by the |
| # base class, CCompiler. |
| src_extensions = (_c_extensions + _cpp_extensions + |
| _rc_extensions + _mc_extensions) |
| res_extension = '.res' |
| obj_extension = '.obj' |
| static_lib_extension = '.lib' |
| shared_lib_extension = '.dll' |
| static_lib_format = shared_lib_format = '%s%s' |
| exe_extension = '.exe' |
| |
| def __init__(self, verbose=0, dry_run=0, force=0): |
| CCompiler.__init__ (self, verbose, dry_run, force) |
| self.__version = get_build_version() |
| self.__arch = get_build_architecture() |
| if self.__arch == "Intel": |
| # x86 |
| if self.__version >= 7: |
| self.__root = r"Software\Microsoft\VisualStudio" |
| self.__macros = MacroExpander(self.__version) |
| else: |
| self.__root = r"Software\Microsoft\Devstudio" |
| self.__product = "Visual Studio version %s" % self.__version |
| else: |
| # Win64. Assume this was built with the platform SDK |
| self.__product = "Microsoft SDK compiler %s" % (self.__version + 6) |
| |
| self.initialized = False |
| |
| |
| # -- Miscellaneous methods ----------------------------------------- |
| |
| # Helper methods for using the MSVC registry settings |
| |
| def find_exe(self, exe): |
| """Return path to an MSVC executable program. |
| |
| Tries to find the program in several places: first, one of the |
| MSVC program search paths from the registry; next, the directories |
| in the PATH environment variable. If any of those work, return an |
| absolute path that is known to exist. If none of them work, just |
| return the original program name, 'exe'. |
| """ |
| for p in self.__paths: |
| fn = os.path.join(os.path.abspath(p), exe) |
| if os.path.isfile(fn): |
| return fn |
| |
| # didn't find it; try existing path |
| for p in os.environ['Path'].split(';'): |
| fn = os.path.join(os.path.abspath(p),exe) |
| if os.path.isfile(fn): |
| return fn |
| |
| return exe |
| |
| def get_msvc_paths(self, path, platform='x86'): |
| """Get a list of devstudio directories (include, lib or path). |
| |
| Return a list of strings. The list will be empty if unable to |
| access the registry or appropriate registry keys not found. |
| """ |
| if not _can_read_reg: |
| return [] |
| |
| path = path + " dirs" |
| if self.__version >= 7: |
| key = (r"%s\%0.1f\VC\VC_OBJECTS_PLATFORM_INFO\Win32\Directories" |
| % (self.__root, self.__version)) |
| else: |
| key = (r"%s\6.0\Build System\Components\Platforms" |
| r"\Win32 (%s)\Directories" % (self.__root, platform)) |
| |
| for base in HKEYS: |
| d = read_values(base, key) |
| if d: |
| if self.__version >= 7: |
| return self.__macros.sub(d[path]).split(";") |
| else: |
| return d[path].split(";") |
| # MSVC 6 seems to create the registry entries we need only when |
| # the GUI is run. |
| if self.__version == 6: |
| for base in HKEYS: |
| if read_values(base, r"%s\6.0" % self.__root) is not None: |
| self.warn("It seems you have Visual Studio 6 installed, " |
| "but the expected registry settings are not present.\n" |
| "You must at least run the Visual Studio GUI once " |
| "so that these entries are created.") |
| break |
| return [] |
| |
| def set_path_env_var(self, name): |
| """Set environment variable 'name' to an MSVC path type value. |
| |
| This is equivalent to a SET command prior to execution of spawned |
| commands. |
| """ |
| |
| if name == "lib": |
| p = self.get_msvc_paths("library") |
| else: |
| p = self.get_msvc_paths(name) |
| if p: |
| os.environ[name] = ';'.join(p) |
| |
| |
| if get_build_version() >= 8.0: |
| log.debug("Importing new compiler from distutils.msvc9compiler") |
| OldMSVCCompiler = MSVCCompiler |
| from distutils.msvc9compiler import MSVCCompiler |
| # get_build_architecture not really relevant now we support cross-compile |
| from distutils.msvc9compiler import MacroExpander |
