| """distutils.cygwinccompiler | |
| Provides the CygwinCCompiler class, a subclass of UnixCCompiler that | |
| handles the Cygwin port of the GNU C compiler to Windows. It also contains | |
| the Mingw32CCompiler class which handles the mingw32 port of GCC (same as | |
| cygwin in no-cygwin mode). | |
| """ | |
| # problems: | |
| # | |
| # * if you use a msvc compiled python version (1.5.2) | |
| # 1. you have to insert a __GNUC__ section in its config.h | |
| # 2. you have to generate a import library for its dll | |
| # - create a def-file for python??.dll | |
| # - create a import library using | |
| # dlltool --dllname python15.dll --def python15.def \ | |
| # --output-lib libpython15.a | |
| # | |
| # see also http://starship.python.net/crew/kernr/mingw32/Notes.html | |
| # | |
| # * We put export_symbols in a def-file, and don't use | |
| # --export-all-symbols because it doesn't worked reliable in some | |
| # tested configurations. And because other windows compilers also | |
| # need their symbols specified this no serious problem. | |
| # | |
| # tested configurations: | |
| # | |
| # * cygwin gcc 2.91.57/ld 2.9.4/dllwrap 0.2.4 works | |
| # (after patching python's config.h and for C++ some other include files) | |
| # see also http://starship.python.net/crew/kernr/mingw32/Notes.html | |
| # * mingw32 gcc 2.95.2/ld 2.9.4/dllwrap 0.2.4 works | |
| # (ld doesn't support -shared, so we use dllwrap) | |
| # * cygwin gcc 2.95.2/ld 2.10.90/dllwrap 2.10.90 works now | |
| # - its dllwrap doesn't work, there is a bug in binutils 2.10.90 | |
| # see also http://sources.redhat.com/ml/cygwin/2000-06/msg01274.html | |
| # - using gcc -mdll instead dllwrap doesn't work without -static because | |
| # it tries to link against dlls instead their import libraries. (If | |
| # it finds the dll first.) | |
| # By specifying -static we force ld to link against the import libraries, | |
| # this is windows standard and there are normally not the necessary symbols | |
| # in the dlls. | |
| # *** only the version of June 2000 shows these problems | |
| # * cygwin gcc 3.2/ld 2.13.90 works | |
| # (ld supports -shared) | |
| # * mingw gcc 3.2/ld 2.13 works | |
| # (ld supports -shared) | |
| # This module should be kept compatible with Python 2.1. | |
| __revision__ = "$Id$" | |
| import os,sys,copy | |
| from distutils.ccompiler import gen_preprocess_options, gen_lib_options | |
| from distutils.unixccompiler import UnixCCompiler | |
| from distutils.file_util import write_file | |
| from distutils.errors import DistutilsExecError, CompileError, UnknownFileError | |
| from distutils import log | |
| def get_msvcr(): | |
| """Include the appropriate MSVC runtime library if Python was built | |
| with MSVC 7.0 or later. | |
| """ | |
| msc_pos = sys.version.find('MSC v.') | |
| if msc_pos != -1: | |
| msc_ver = sys.version[msc_pos+6:msc_pos+10] | |
| if msc_ver == '1300': | |
| # MSVC 7.0 | |
| return ['msvcr70'] | |
| elif msc_ver == '1310': | |
| # MSVC 7.1 | |
| return ['msvcr71'] | |
| elif msc_ver == '1400': | |
| # VS2005 / MSVC 8.0 | |
| return ['msvcr80'] | |
| elif msc_ver == '1500': | |
| # VS2008 / MSVC 9.0 | |
| return ['msvcr90'] | |
| else: | |
| raise ValueError("Unknown MS Compiler version %s " % msc_ver) | |
| class CygwinCCompiler (UnixCCompiler): | |
| compiler_type = 'cygwin' | |
| obj_extension = ".o" | |
| static_lib_extension = ".a" | |
| shared_lib_extension = ".dll" | |
| static_lib_format = "lib%s%s" | |
| shared_lib_format = "%s%s" | |
| exe_extension = ".exe" | |
| def __init__ (self, verbose=0, dry_run=0, force=0): | |
| UnixCCompiler.__init__ (self, verbose, dry_run, force) | |
| (status, details) = check_config_h() | |
| self.debug_print("Python's GCC status: %s (details: %s)" % | |
| (status, details)) | |
| if status is not CONFIG_H_OK: | |
| self.warn( | |
| "Python's pyconfig.h doesn't seem to support your compiler. " | |
| "Reason: %s. " | |
| "Compiling may fail because of undefined preprocessor macros." | |
| % details) | |
| self.gcc_version, self.ld_version, self.dllwrap_version = \ | |
| get_versions() | |
| self.debug_print(self.compiler_type + ": gcc %s, ld %s, dllwrap %s\n" % | |
| (self.gcc_version, | |
| self.ld_version, | |
| self.dllwrap_version) ) | |
| # ld_version >= "2.10.90" and < "2.13" should also be able to use | |
| # gcc -mdll instead of dllwrap | |
| # Older dllwraps had own version numbers, newer ones use the | |
| # same as the rest of binutils ( also ld ) | |
| # dllwrap 2.10.90 is buggy | |
| if self.ld_version >= "2.10.90": | |
| self.linker_dll = "gcc" | |
| else: | |
| self.linker_dll = "dllwrap" | |
| # ld_version >= "2.13" support -shared so use it instead of | |
| # -mdll -static | |
| if self.ld_version >= "2.13": | |
| shared_option = "-shared" | |
| else: | |
| shared_option = "-mdll -static" | |
| # Hard-code GCC because that's what this is all about. | |
| # XXX optimization, warnings etc. should be customizable. | |
| self.set_executables(compiler='gcc -mcygwin -O -Wall', | |
| compiler_so='gcc -mcygwin -mdll -O -Wall', | |
| compiler_cxx='g++ -mcygwin -O -Wall', | |
| linker_exe='gcc -mcygwin', | |
| linker_so=('%s -mcygwin %s' % | |
| (self.linker_dll, shared_option))) | |
| # cygwin and mingw32 need different sets of libraries | |
| if self.gcc_version == "2.91.57": | |
| # cygwin shouldn't need msvcrt, but without the dlls will crash | |
| # (gcc version 2.91.57) -- perhaps something about initialization | |
| self.dll_libraries=["msvcrt"] | |
| self.warn( | |
| "Consider upgrading to a newer version of gcc") | |
| else: | |
| # Include the appropriate MSVC runtime library if Python was built | |
| # with MSVC 7.0 or later. | |
| self.dll_libraries = get_msvcr() | |
| # __init__ () | |
| def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts): | |
| if ext == '.rc' or ext == '.res': | |
| # gcc needs '.res' and '.rc' compiled to object files !!! | |
| try: | |
| self.spawn(["windres", "-i", src, "-o", obj]) | |
| except DistutilsExecError, msg: | |
| raise CompileError, msg | |
| else: # for other files use the C-compiler | |
| try: | |
| self.spawn(self.compiler_so + cc_args + [src, '-o', obj] + | |
| extra_postargs) | |
| except DistutilsExecError, msg: | |
| raise CompileError, msg | |
| 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): | |
| # use separate copies, so we can modify the lists | |
| extra_preargs = copy.copy(extra_preargs or []) | |
| libraries = copy.copy(libraries or []) | |
| objects = copy.copy(objects or []) | |
| # Additional libraries | |
| libraries.extend(self.dll_libraries) | |
| # handle export symbols by creating a def-file | |
| # with executables this only works with gcc/ld as linker | |
| if ((export_symbols is not None) and | |
| (target_desc != self.EXECUTABLE or self.linker_dll == "gcc")): | |
| # (The linker doesn't do anything if output is up-to-date. | |
| # So it would probably better to check if we really need this, | |
| # but for this we had to insert some unchanged parts of | |
| # UnixCCompiler, and this is not what we want.) | |
| # we want to put some files in the same directory as the | |
| # object files are, build_temp doesn't help much | |
| # where are the object files | |
| temp_dir = os.path.dirname(objects[0]) | |
| # name of dll to give the helper files the same base name | |
| (dll_name, dll_extension) = os.path.splitext( | |
| os.path.basename(output_filename)) | |
| # generate the filenames for these files | |
| def_file = os.path.join(temp_dir, dll_name + ".def") | |
| lib_file = os.path.join(temp_dir, 'lib' + dll_name + ".a") | |
| # Generate .def file | |
| contents = [ | |
| "LIBRARY %s" % os.path.basename(output_filename), | |
| "EXPORTS"] | |
| for sym in export_symbols: | |
| contents.append(sym) | |
| self.execute(write_file, (def_file, contents), | |
| "writing %s" % def_file) | |
| # next add options for def-file and to creating import libraries | |
| # dllwrap uses different options than gcc/ld | |
| if self.linker_dll == "dllwrap": | |
| extra_preargs.extend(["--output-lib", lib_file]) | |
| # for dllwrap we have to use a special option | |
| extra_preargs.extend(["--def", def_file]) | |
| # we use gcc/ld here and can be sure ld is >= 2.9.10 | |
| else: | |
| # doesn't work: bfd_close build\...\libfoo.a: Invalid operation | |
| #extra_preargs.extend(["-Wl,--out-implib,%s" % lib_file]) | |
| # for gcc/ld the def-file is specified as any object files | |
| objects.append(def_file) | |
| #end: if ((export_symbols is not None) and | |
| # (target_desc != self.EXECUTABLE or self.linker_dll == "gcc")): | |
| # who wants symbols and a many times larger output file | |
| # should explicitly switch the debug mode on | |
| # otherwise we let dllwrap/ld strip the output file | |
| # (On my machine: 10KB < stripped_file < ??100KB | |
| # unstripped_file = stripped_file + XXX KB | |
| # ( XXX=254 for a typical python extension)) | |
| if not debug: | |
| extra_preargs.append("-s") | |
| UnixCCompiler.link(self, | |
| target_desc, | |
| objects, | |
| output_filename, | |
| output_dir, | |
| libraries, | |
| library_dirs, | |
| runtime_library_dirs, | |
| None, # export_symbols, we do this in our def-file | |
| debug, | |
| extra_preargs, | |
| extra_postargs, | |
| build_temp, | |
| target_lang) | |
| # link () | |
| # -- Miscellaneous methods ----------------------------------------- | |
| # overwrite the one from CCompiler to support rc and res-files | |
| def object_filenames (self, | |
| source_filenames, | |
| strip_dir=0, | |
| output_dir=''): | |
| if output_dir is None: output_dir = '' | |
| obj_names = [] | |
| for src_name in source_filenames: | |
| # use normcase to make sure '.rc' is really '.rc' and not '.RC' | |
| (base, ext) = os.path.splitext (os.path.normcase(src_name)) | |
| if ext not in (self.src_extensions + ['.rc','.res']): | |
| raise UnknownFileError, \ | |
| "unknown file type '%s' (from '%s')" % \ | |
| (ext, src_name) | |
| if strip_dir: | |
| base = os.path.basename (base) | |
| if ext == '.res' or ext == '.rc': | |
| # these need to be compiled to object files | |
| obj_names.append (os.path.join (output_dir, | |
| base + ext + self.obj_extension)) | |
| else: | |
| obj_names.append (os.path.join (output_dir, | |
| base + self.obj_extension)) | |
| return obj_names | |
| # object_filenames () | |
| # class CygwinCCompiler | |
| # the same as cygwin plus some additional parameters | |
| class Mingw32CCompiler (CygwinCCompiler): | |
| compiler_type = 'mingw32' | |
| def __init__ (self, | |
| verbose=0, | |
| dry_run=0, | |
| force=0): | |
| CygwinCCompiler.__init__ (self, verbose, dry_run, force) | |
| # ld_version >= "2.13" support -shared so use it instead of | |
| # -mdll -static | |
| if self.ld_version >= "2.13": | |
| shared_option = "-shared" | |
| else: | |
| shared_option = "-mdll -static" | |
| # A real mingw32 doesn't need to specify a different entry point, | |
| # but cygwin 2.91.57 in no-cygwin-mode needs it. | |
| if self.gcc_version <= "2.91.57": | |
| entry_point = '--entry _DllMain@12' | |
| else: | |
| entry_point = '' | |
| self.set_executables(compiler='gcc -mno-cygwin -O -Wall', | |
| compiler_so='gcc -mno-cygwin -mdll -O -Wall', | |
| compiler_cxx='g++ -mno-cygwin -O -Wall', | |
| linker_exe='gcc -mno-cygwin', | |
| linker_so='%s -mno-cygwin %s %s' | |
| % (self.linker_dll, shared_option, | |
| entry_point)) | |
| # Maybe we should also append -mthreads, but then the finished | |
| # dlls need another dll (mingwm10.dll see Mingw32 docs) | |
| # (-mthreads: Support thread-safe exception handling on `Mingw32') | |
| # no additional libraries needed | |
| self.dll_libraries=[] | |
| # Include the appropriate MSVC runtime library if Python was built | |
| # with MSVC 7.0 or later. | |
| self.dll_libraries = get_msvcr() | |
| # __init__ () | |
| # class Mingw32CCompiler | |
| # Because these compilers aren't configured in Python's pyconfig.h file by | |
| # default, we should at least warn the user if he is using a unmodified | |
| # version. | |
| CONFIG_H_OK = "ok" | |
| CONFIG_H_NOTOK = "not ok" | |
| CONFIG_H_UNCERTAIN = "uncertain" | |
| def check_config_h(): | |
| """Check if the current Python installation (specifically, pyconfig.h) | |
| appears amenable to building extensions with GCC. Returns a tuple | |
| (status, details), where 'status' is one of the following constants: | |
| CONFIG_H_OK | |
| all is well, go ahead and compile | |
| CONFIG_H_NOTOK | |
| doesn't look good | |
| CONFIG_H_UNCERTAIN | |
| not sure -- unable to read pyconfig.h | |
| 'details' is a human-readable string explaining the situation. | |
| Note there are two ways to conclude "OK": either 'sys.version' contains | |
| the string "GCC" (implying that this Python was built with GCC), or the | |
| installed "pyconfig.h" contains the string "__GNUC__". | |
| """ | |
| # XXX since this function also checks sys.version, it's not strictly a | |
| # "pyconfig.h" check -- should probably be renamed... | |
| from distutils import sysconfig | |
| import string | |
| # if sys.version contains GCC then python was compiled with | |
| # GCC, and the pyconfig.h file should be OK | |
| if string.find(sys.version,"GCC") >= 0: | |
| return (CONFIG_H_OK, "sys.version mentions 'GCC'") | |
| fn = sysconfig.get_config_h_filename() | |
| try: | |
| # It would probably better to read single lines to search. | |
| # But we do this only once, and it is fast enough | |
| f = open(fn) | |
| try: | |
| s = f.read() | |
| finally: | |
| f.close() | |
| except IOError, exc: | |
| # if we can't read this file, we cannot say it is wrong | |
| # the compiler will complain later about this file as missing | |
| return (CONFIG_H_UNCERTAIN, | |
| "couldn't read '%s': %s" % (fn, exc.strerror)) | |
| else: | |
| # "pyconfig.h" contains an "#ifdef __GNUC__" or something similar | |
| if string.find(s,"__GNUC__") >= 0: | |
| return (CONFIG_H_OK, "'%s' mentions '__GNUC__'" % fn) | |
| else: | |
| return (CONFIG_H_NOTOK, "'%s' does not mention '__GNUC__'" % fn) | |
| def get_versions(): | |
| """ Try to find out the versions of gcc, ld and dllwrap. | |
| If not possible it returns None for it. | |
| """ | |
| from distutils.version import LooseVersion | |
| from distutils.spawn import find_executable | |
| import re | |
| gcc_exe = find_executable('gcc') | |
| if gcc_exe: | |
| out = os.popen(gcc_exe + ' -dumpversion','r') | |
| out_string = out.read() | |
| out.close() | |
| result = re.search('(\d+\.\d+(\.\d+)*)',out_string) | |
| if result: | |
| gcc_version = LooseVersion(result.group(1)) | |
| else: | |
| gcc_version = None | |
| else: | |
| gcc_version = None | |
| ld_exe = find_executable('ld') | |
| if ld_exe: | |
| out = os.popen(ld_exe + ' -v','r') | |
| out_string = out.read() | |
| out.close() | |
| result = re.search('(\d+\.\d+(\.\d+)*)',out_string) | |
| if result: | |
| ld_version = LooseVersion(result.group(1)) | |
| else: | |
| ld_version = None | |
| else: | |
| ld_version = None | |
| dllwrap_exe = find_executable('dllwrap') | |
| if dllwrap_exe: | |
| out = os.popen(dllwrap_exe + ' --version','r') | |
| out_string = out.read() | |
| out.close() | |
| result = re.search(' (\d+\.\d+(\.\d+)*)',out_string) | |
| if result: | |
| dllwrap_version = LooseVersion(result.group(1)) | |
| else: | |
| dllwrap_version = None | |
| else: | |
| dllwrap_version = None | |
| return (gcc_version, ld_version, dllwrap_version) |