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Support compiling Python extensions on Windows.
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| """distutils.msvc9compiler | |
| Contains MSVCCompiler, an implementation of the abstract CCompiler class | |
| for the Microsoft Visual Studio 2008. | |
| The module is compatible with VS 2005-2012. You can find legacy support | |
| for older versions of VS in distutils.msvccompiler. | |
| """ | |
| # Written by Perry Stoll hacked by Cory Dolphin to support VS 2012+ | |
| # hacked by Robin Becker and Thomas Heller to do a better job of | |
| # finding DevStudio (through the registry) | |
| # ported to VS2005 and VS 2008 by Christian Heimes | |
| __revision__ = "$Id: msvc9compiler.py 82130 2010-06-21 15:27:46Z benjamin.peterson $" | |
| import os | |
| import subprocess | |
| import sys | |
| import re | |
| from distutils.errors import (DistutilsExecError, DistutilsPlatformError, | |
| CompileError, LibError, LinkError) | |
| from distutils.ccompiler import CCompiler, gen_lib_options | |
| from distutils import log | |
| from distutils.util import get_platform | |
| import _winreg | |
| RegOpenKeyEx = _winreg.OpenKeyEx | |
| RegEnumKey = _winreg.EnumKey | |
| RegEnumValue = _winreg.EnumValue | |
| RegError = _winreg.error | |
| HKEYS = (_winreg.HKEY_USERS, | |
| _winreg.HKEY_CURRENT_USER, | |
| _winreg.HKEY_LOCAL_MACHINE, | |
| _winreg.HKEY_CLASSES_ROOT) | |
| NATIVE_WIN64 = (sys.platform == 'win32' and sys.maxsize > 2**32) | |
| if NATIVE_WIN64: | |
| # Visual C++ is a 32-bit application, so we need to look in | |
| # the corresponding registry branch, if we're running a | |
| # 64-bit Python on Win64 | |
| VS_BASE = r"Software\Wow6432Node\Microsoft\VisualStudio\%0.1f" | |
| VSEXPRESS_BASE = r"Software\Wow6432Node\Microsoft\VCExpress\%0.1f" | |
| WINSDK_BASE = r"Software\Wow6432Node\Microsoft\Microsoft SDKs\Windows" | |
| NET_BASE = r"Software\Wow6432Node\Microsoft\.NETFramework" | |
| else: | |
| VS_BASE = r"Software\Microsoft\VisualStudio\%0.1f" | |
| VSEXPRESS_BASE = r"Software\Microsoft\VCExpress\%0.1f" | |
| WINSDK_BASE = r"Software\Microsoft\Microsoft SDKs\Windows" | |
| NET_BASE = r"Software\Microsoft\.NETFramework" | |
| # A map keyed by get_platform() return values to values accepted by | |
| # 'vcvarsall.bat'. Note a cross-compile may combine these (eg, 'x86_amd64' is | |
| # the param to cross-compile on x86 targetting amd64.) | |
| PLAT_TO_VCVARS = { | |
| 'win32' : 'x86', | |
| 'win-amd64' : 'amd64', | |
| 'win-ia64' : 'ia64', | |
| } | |
| class Reg: | |
| """Helper class to read values from the registry | |
| """ | |
| def get_value(cls, path, key): | |
| for base in HKEYS: | |
| d = cls.read_values(base, path) | |
| if d and key in d: | |
| return d[key] | |
| raise KeyError(key) | |
| get_value = classmethod(get_value) | |
| def read_keys(cls, 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 | |
| read_keys = classmethod(read_keys) | |
| def read_values(cls, 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[cls.convert_mbcs(name)] = cls.convert_mbcs(value) | |
| i += 1 | |
| return d | |
| read_values = classmethod(read_values) | |
| def convert_mbcs(s): | |
| dec = getattr(s, "decode", None) | |
| if dec is not None: | |
| try: | |
| s = dec("mbcs") | |
| except UnicodeError: | |
| pass | |
| return s | |
| convert_mbcs = staticmethod(convert_mbcs) | |
| class MacroExpander: | |
| def __init__(self, version): | |
| self.macros = {} | |
| self.vsbase = VS_BASE % version | |
| self.load_macros(version) | |
| def set_macro(self, macro, path, key): | |
| self.macros["$(%s)" % macro] = Reg.get_value(path, key) | |
| def load_macros(self, version): | |
| self.set_macro("VCInstallDir", self.vsbase + r"\Setup\VC", "productdir") | |
| self.set_macro("VSInstallDir", self.vsbase + r"\Setup\VS", "productdir") | |
| self.set_macro("FrameworkDir", NET_BASE, "installroot") | |
| try: | |
| if version >= 8.0: | |
| self.set_macro("FrameworkSDKDir", NET_BASE, | |
| "sdkinstallrootv2.0") | |
| else: | |
| raise KeyError("sdkinstallrootv2.0") | |
| except KeyError: | |
| raise DistutilsPlatformError( | |
| """Python was built with Visual Studio 2008; | |
| extensions must be built with a compiler than can generate compatible binaries. | |
| Visual Studio 2008 was not found on this system. If you have Cygwin installed, | |
| you can try compiling with MingW32, by passing "-c mingw32" to setup.py.""") | |
| if version >= 9.0: | |
| self.set_macro("FrameworkVersion", self.vsbase, "clr version") | |
| self.set_macro("WindowsSdkDir", WINSDK_BASE, "currentinstallfolder") | |
| else: | |
| 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 = Reg.get_value(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_installed_vs_version(): | |
| base_str = "VisualStudio.DTE.%0.1f" | |
| for version in range(8, 15, -1): # support VS8-VS14, if convention continues | |
| try: | |
| RegOpenKeyEx(_winreg.HKEY_CLASSES_ROOT, base_str % version) | |
| return version | |
| except RegError: # key not found, version not present. | |
| continue | |
| log.debug("Unable to find any Visual Studio version in registry") | |
| return -1 # no version found in registry! | |
| 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 | |
| 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 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 | |
| def removeDuplicates(variable): | |
| """Remove duplicate values of an environment variable. | |
| """ | |
| oldList = variable.split(os.pathsep) | |
| newList = [] | |
| for i in oldList: | |
| if i not in newList: | |
| newList.append(i) | |
| newVariable = os.pathsep.join(newList) | |
| return newVariable | |
| def find_vcvarsall(version): | |
| """Find the vcvarsall.bat file | |
| At first it tries to find the productdir of VS 2008 in the registry. If | |
| that fails it falls back to the VS90COMNTOOLS env var. | |
| """ | |
| vsbase = VS_BASE % version | |
| try: | |
| productdir = Reg.get_value(r"%s\Setup\VC" % vsbase, | |
| "productdir") | |
| except KeyError: | |
| productdir = None | |
| # trying Express edition | |
| if productdir is None: | |
| vsbase = VSEXPRESS_BASE % version | |
| try: | |
| productdir = Reg.get_value(r"%s\Setup\VC" % vsbase, | |
| "productdir") | |
| except KeyError: | |
| productdir = None | |
| log.debug("Unable to find productdir in registry") | |
| if not productdir or not os.path.isdir(productdir): | |
| toolskey = "VS%0.f0COMNTOOLS" % version | |
| toolsdir = os.environ.get(toolskey, None) | |
| if toolsdir and os.path.isdir(toolsdir): | |
| productdir = os.path.join(toolsdir, os.pardir, os.pardir, "VC") | |
| productdir = os.path.abspath(productdir) | |
| if not os.path.isdir(productdir): | |
| log.debug("%s is not a valid directory" % productdir) | |
| return None | |
| else: | |
| log.debug("Env var %s is not set or invalid" % toolskey) | |
| if not productdir: | |
| log.debug("No productdir found") | |
| return None | |
| vcvarsall = os.path.join(productdir, "vcvarsall.bat") | |
| if os.path.isfile(vcvarsall): | |
| return vcvarsall | |
| log.debug("Unable to find vcvarsall.bat") | |
| return None | |
| def query_vcvarsall(version, arch="x86"): | |
| """Launch vcvarsall.bat and read the settings from its environment | |
| """ | |
| vcvarsall = find_vcvarsall(version) | |
| interesting = set(("include", "lib", "libpath", "path")) | |
| result = {} | |
| if vcvarsall is None: | |
| raise DistutilsPlatformError("Unable to find vcvarsall.bat") | |
| log.debug("Calling 'vcvarsall.bat %s' (version=%s)", arch, version) | |
| popen = subprocess.Popen('"%s" %s & set' % (vcvarsall, arch), | |
| stdout=subprocess.PIPE, | |
| stderr=subprocess.PIPE) | |
| stdout, stderr = popen.communicate() | |
| if popen.wait() != 0: | |
| raise DistutilsPlatformError(stderr.decode("mbcs")) | |
| stdout = stdout.decode("mbcs") | |
| for line in stdout.split("\n"): | |
| line = Reg.convert_mbcs(line) | |
| if '=' not in line: | |
| continue | |
| line = line.strip() | |
| key, value = line.split('=', 1) | |
| key = key.lower() | |
| if key in interesting: | |
| if value.endswith(os.pathsep): | |
| value = value[:-1] | |
| result[key] = removeDuplicates(value) | |
| if len(result) != len(interesting): | |
| raise ValueError(str(list(result.keys()))) | |
| return result | |
| # More globals | |
| VERSION = get_installed_vs_version() | |
| if VERSION < 8.0: | |
| raise DistutilsPlatformError("VC %0.1f is not supported by this module" % VERSION) | |
| # MACROS = MacroExpander(VERSION) | |
| 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 = VERSION | |
| self.__root = r"Software\Microsoft\VisualStudio" | |
| # self.__macros = MACROS | |
| self.__paths = [] | |
| # target platform (.plat_name is consistent with 'bdist') | |
| self.plat_name = None | |
| self.__arch = None # deprecated name | |
| self.initialized = False | |
| def initialize(self, plat_name=None): | |
| # multi-init means we would need to check platform same each time... | |
| assert not self.initialized, "don't init multiple times" | |
| if plat_name is None: | |
| plat_name = get_platform() | |
| # sanity check for platforms to prevent obscure errors later. | |
| ok_plats = 'win32', 'win-amd64', 'win-ia64' | |
| if plat_name not in ok_plats: | |
| raise DistutilsPlatformError("--plat-name must be one of %s" % | |
| (ok_plats,)) | |
| if "DISTUTILS_USE_SDK" in os.environ and "MSSdk" in os.environ and self.find_exe("cl.exe"): | |
| # Assume that the SDK set up everything alright; don't try to be | |
| # smarter | |
| self.cc = "cl.exe" | |
| self.linker = "link.exe" | |
| self.lib = "lib.exe" | |
| self.rc = "rc.exe" | |
| self.mc = "mc.exe" | |
| else: | |
| # On x86, 'vcvars32.bat amd64' creates an env that doesn't work; | |
| # to cross compile, you use 'x86_amd64'. | |
| # On AMD64, 'vcvars32.bat amd64' is a native build env; to cross | |
| # compile use 'x86' (ie, it runs the x86 compiler directly) | |
| # No idea how itanium handles this, if at all. | |
| if plat_name == get_platform() or plat_name == 'win32': | |
| # native build or cross-compile to win32 | |
| plat_spec = PLAT_TO_VCVARS[plat_name] | |
| else: | |
| # cross compile from win32 -> some 64bit | |
| plat_spec = PLAT_TO_VCVARS[get_platform()] + '_' + \ | |
| PLAT_TO_VCVARS[plat_name] | |
| vc_env = query_vcvarsall(VERSION, plat_spec) | |
| # take care to only use strings in the environment. | |
| self.__paths = vc_env['path'].encode('mbcs').split(os.pathsep) | |
| os.environ['lib'] = vc_env['lib'].encode('mbcs') | |
| os.environ['include'] = vc_env['include'].encode('mbcs') | |
| if len(self.__paths) == 0: | |
| raise DistutilsPlatformError("Python was built with %s, " | |
| "and extensions need to be built with the same " | |
| "version of the compiler, but it isn't installed." | |
| % self.__product) | |
| self.cc = self.find_exe("cl.exe") | |
| self.linker = self.find_exe("link.exe") | |
| self.lib = self.find_exe("lib.exe") | |
| self.rc = self.find_exe("rc.exe") # resource compiler | |
| self.mc = self.find_exe("mc.exe") # message compiler | |
| #self.set_path_env_var('lib') | |
| #self.set_path_env_var('include') | |
| # extend the MSVC path with the current path | |
| try: | |
| for p in os.environ['path'].split(';'): | |
| self.__paths.append(p) | |
| except KeyError: | |
| pass | |
| self.__paths = normalize_and_reduce_paths(self.__paths) | |
| os.environ['path'] = ";".join(self.__paths) | |
| self.preprocess_options = None | |
| if self.__arch == "x86": | |
| self.compile_options = [ '/nologo', '/Ox', '/MD', '/W3', | |
| '/DNDEBUG'] | |
| self.compile_options_debug = ['/nologo', '/Od', '/MDd', '/W3', | |
| '/Z7', '/D_DEBUG'] | |
| else: | |
| # Win64 | |
| self.compile_options = [ '/nologo', '/Ox', '/MD', '/W3', '/GS-' , | |
| '/DNDEBUG'] | |
| self.compile_options_debug = ['/nologo', '/Od', '/MDd', '/W3', '/GS-', | |
| '/Z7', '/D_DEBUG'] | |
| self.ldflags_shared = ['/DLL', '/nologo', '/INCREMENTAL:NO'] | |
| if self.__version >= 7: | |
| self.ldflags_shared_debug = [ | |
| '/DLL', '/nologo', '/INCREMENTAL:no', '/DEBUG', '/pdb:None' | |
| ] | |
| self.ldflags_static = [ '/nologo'] | |
| self.initialized = True | |
| # -- Worker methods ------------------------------------------------ | |
| def object_filenames(self, | |
| source_filenames, | |
| strip_dir=0, | |
| output_dir=''): | |
| # Copied from ccompiler.py, extended to return .res as 'object'-file | |
| # for .rc input file | |
| if output_dir is None: output_dir = '' | |
| obj_names = [] | |
| for src_name in source_filenames: | |
| (base, ext) = os.path.splitext (src_name) | |
| base = os.path.splitdrive(base)[1] # Chop off the drive | |
| base = base[os.path.isabs(base):] # If abs, chop off leading / | |
| if ext not in self.src_extensions: | |
| # Better to raise an exception instead of silently continuing | |
| # and later complain about sources and targets having | |
| # different lengths | |
| raise CompileError ("Don't know how to compile %s" % src_name) | |
| if strip_dir: | |
| base = os.path.basename (base) | |
| if ext in self._rc_extensions: | |
| obj_names.append (os.path.join (output_dir, | |
| base + self.res_extension)) | |
| elif ext in self._mc_extensions: | |
| obj_names.append (os.path.join (output_dir, | |
| base + self.res_extension)) | |
| else: | |
| obj_names.append (os.path.join (output_dir, | |
| base + self.obj_extension)) | |
| return obj_names | |
| def compile(self, sources, | |
| output_dir=None, macros=None, include_dirs=None, debug=0, | |
| extra_preargs=None, extra_postargs=None, depends=None): | |
| if not self.initialized: | |
| self.initialize() | |
| compile_info = self._setup_compile(output_dir, macros, include_dirs, | |
| sources, depends, extra_postargs) | |
| macros, objects, extra_postargs, pp_opts, build = compile_info | |
| compile_opts = extra_preargs or [] | |
| compile_opts.append ('/c') | |
| if debug: | |
| compile_opts.extend(self.compile_options_debug) | |
| else: | |
| compile_opts.extend(self.compile_options) | |
| for obj in objects: | |
| try: | |
| src, ext = build[obj] | |
| except KeyError: | |
| continue | |
| if debug: | |
| # pass the full pathname to MSVC in debug mode, | |
| # this allows the debugger to find the source file | |
| # without asking the user to browse for it | |
| src = os.path.abspath(src) | |
| if ext in self._c_extensions: | |
| input_opt = "/Tc" + src | |
| elif ext in self._cpp_extensions: | |
| input_opt = "/Tp" + src | |
| elif ext in self._rc_extensions: | |
| # compile .RC to .RES file | |
| input_opt = src | |
| output_opt = "/fo" + obj | |
| try: | |
| self.spawn([self.rc] + pp_opts + | |
| [output_opt] + [input_opt]) | |
| except DistutilsExecError, 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, msg: | |
| raise CompileError(msg) | |
| continue | |
| else: | |
| # how to handle this file? | |
| raise CompileError("Don't know how to compile %s to %s" | |
| % (src, obj)) | |
| output_opt = "/Fo" + obj | |
| try: | |
| self.spawn([self.cc] + compile_opts + pp_opts + | |
| [input_opt, output_opt] + | |
| extra_postargs) | |
| except DistutilsExecError, 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: | |
| self.spawn([self.lib] + lib_args) | |
| except DistutilsExecError, 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): | |
| if target_desc == CCompiler.EXECUTABLE: | |
| if debug: | |
| ldflags = self.ldflags_shared_debug[1:] | |
| else: | |
| ldflags = self.ldflags_shared[1:] | |
| else: | |
| if debug: | |
| ldflags = self.ldflags_shared_debug | |
| else: | |
| ldflags = self.ldflags_shared | |
| export_opts = [] | |
| for sym in (export_symbols or []): | |
| export_opts.append("/EXPORT:" + sym) | |
| 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) | |
| # Embedded manifests are recommended - see MSDN article titled | |
| # "How to: Embed a Manifest Inside a C/C++ Application" | |
| # (currently at http://msdn2.microsoft.com/en-us/library/ms235591(VS.80).aspx) | |
| # Ask the linker to generate the manifest in the temp dir, so | |
| # we can embed it later. | |
| temp_manifest = os.path.join( | |
| build_temp, | |
| os.path.basename(output_filename) + ".manifest") | |
| ld_args.append('/MANIFEST') | |
| ld_args.append('/MANIFESTFILE:' + temp_manifest) | |
| if extra_preargs: | |
| ld_args[:0] = extra_preargs | |
| if extra_postargs: | |
| ld_args.extend(extra_postargs) | |
| self.mkpath(os.path.dirname(output_filename)) | |
| try: | |
| self.spawn([self.linker] + ld_args) | |
| except DistutilsExecError, msg: | |
| raise LinkError(msg) | |
| # embed the manifest | |
| # XXX - this is somewhat fragile - if mt.exe fails, distutils | |
| # will still consider the DLL up-to-date, but it will not have a | |
| # manifest. Maybe we should link to a temp file? OTOH, that | |
| # implies a build environment error that shouldn't go undetected. | |
| if target_desc == CCompiler.EXECUTABLE: | |
| mfid = 1 | |
| else: | |
| mfid = 2 | |
| self._remove_visual_c_ref(temp_manifest) | |
| out_arg = '-outputresource:%s;%s' % (output_filename, mfid) | |
| try: | |
| self.spawn(['mt.exe', '-nologo', '-manifest', | |
| temp_manifest, out_arg]) | |
| except DistutilsExecError, msg: | |
| raise LinkError(msg) | |
| else: | |
| log.debug("skipping %s (up-to-date)", output_filename) | |
| def _remove_visual_c_ref(self, manifest_file): | |
| try: | |
| # Remove references to the Visual C runtime, so they will | |
| # fall through to the Visual C dependency of Python.exe. | |
| # This way, when installed for a restricted user (e.g. | |
| # runtimes are not in WinSxS folder, but in Python's own | |
| # folder), the runtimes do not need to be in every folder | |
| # with .pyd's. | |
| manifest_f = open(manifest_file) | |
| try: | |
| manifest_buf = manifest_f.read() | |
| finally: | |
| manifest_f.close() | |
| pattern = re.compile( | |
| r"""<assemblyIdentity.*?name=("|')Microsoft\."""\ | |
| r"""VC\d{2}\.CRT("|').*?(/>|</assemblyIdentity>)""", | |
| re.DOTALL) | |
| manifest_buf = re.sub(pattern, "", manifest_buf) | |
| pattern = "<dependentAssembly>\s*</dependentAssembly>" | |
| manifest_buf = re.sub(pattern, "", manifest_buf) | |
| manifest_f = open(manifest_file, 'w') | |
| try: | |
| manifest_f.write(manifest_buf) | |
| finally: | |
| manifest_f.close() | |
| except IOError: | |
| pass | |
| # -- 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.exists(libfile): | |
| return libfile | |
| else: | |
| # Oops, didn't find it in *any* of 'dirs' | |
| return None | |
| # 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 |
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