| """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. |
| """ |
| # FIXME: next code is from issue870382 |
| # MS C-runtime libraries never support backward compatibility. |
| # Linking to a different library without to specify correct runtime |
| # version for the headers will link renamed functions to msvcrt. |
| # See issue3308: this piece of code is python problem even |
| # with correct w32api headers. |
| # Issue: for MSVC compiler we can get the version and from version |
| # to determine mcvcrt as code below. But what about if python is |
| # build with GCC compiler? |
| # Output of sys.version is information for python build on first |
| # line, on the next line is information for the compiler and the |
| # output lack information for the C-runtime. |
| 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) |
| else: |
| return [] |
| |
| |
| class CygwinCCompiler (UnixCCompiler): |
| |
| compiler_type = 'cygwin' |
| obj_extension = ".o" |
| static_lib_extension = ".a" |
| shared_lib_extension = ".dll" |
| # FIXME: dylib_... = ".dll.a" is not enought for binutils |
| # loader on win32 platform !!! |
| dylib_lib_extension = ".dll.a" |
| 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) |
| |
| # Next line of code is problem for cross-compiled enviroment: |
| # NOTE: GCC cross-compiler is prefixed by the <hostarch>-<hostos>- |
| # and by default binaries are installed in same directory |
| # as native compiler. |
| 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" |
| |
| # FIXME: |
| # Hard-code may override unix-compiler settings and isn't |
| # possible to use Makefile variables to pass correct flags ! |
| # 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: |
| # FIXME: "bogus checks for suffix" - as example the commented |
| # by #BOGUS# code break valid assembler suffix ".S" ! |
| #BOGUS## use normcase to make sure '.rc' is really '.rc' and not '.RC' |
| #BOGUS#base, ext = os.path.splitext(os.path.normcase(src_name)) |
| base, ext = os.path.splitext (src_name) |
| ext_normcase = os.path.normcase(ext) |
| if ext_normcase in ['.rc','.res']: |
| ext = ext_normcase |
| if ext not in (self.src_extensions + ['.rc','.res']): |
| raise UnknownFileError, \ |
| "unknown file type '%s' (from '%s')" % \ |
| (ext, src_name) |
| base = os.path.splitdrive(base)[1] # Chop off the drive |
| base = base[os.path.isabs(base):] # If abs, chop off leading / |
| 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 = os.environ.get('CC') or find_executable('gcc') |
| ld_exe = os.environ.get('LD') or find_executable('ld') |
| 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 |
| out = os.popen(gcc_exe + ' --print-prog-name ld','r') |
| ld_exe = out.read().decode('ascii').split()[0] |
| out.close() |
| else: |
| gcc_version = None |
| 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 = os.environ.get('DLLWRAP') or 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) |
