| """distutils.unixccompiler |
| |
| Contains the UnixCCompiler class, a subclass of CCompiler that handles |
| the "typical" Unix-style command-line C compiler: |
| * macros defined with -Dname[=value] |
| * macros undefined with -Uname |
| * include search directories specified with -Idir |
| * libraries specified with -lllib |
| * library search directories specified with -Ldir |
| * compile handled by 'cc' (or similar) executable with -c option: |
| compiles .c to .o |
| * link static library handled by 'ar' command (possibly with 'ranlib') |
| * link shared library handled by 'cc -shared' |
| """ |
| |
| # created 1999/07/05, Greg Ward |
| |
| __revision__ = "$Id$" |
| |
| import string, re, os, sys |
| from types import * |
| from copy import copy |
| from distutils import sysconfig |
| from distutils.dep_util import newer |
| from distutils.ccompiler import \ |
| CCompiler, gen_preprocess_options, gen_lib_options |
| from distutils.errors import \ |
| DistutilsExecError, CompileError, LibError, LinkError |
| |
| # XXX Things not currently handled: |
| # * optimization/debug/warning flags; we just use whatever's in Python's |
| # Makefile and live with it. Is this adequate? If not, we might |
| # have to have a bunch of subclasses GNUCCompiler, SGICCompiler, |
| # SunCCompiler, and I suspect down that road lies madness. |
| # * even if we don't know a warning flag from an optimization flag, |
| # we need some way for outsiders to feed preprocessor/compiler/linker |
| # flags in to us -- eg. a sysadmin might want to mandate certain flags |
| # via a site config file, or a user might want to set something for |
| # compiling this module distribution only via the setup.py command |
| # line, whatever. As long as these options come from something on the |
| # current system, they can be as system-dependent as they like, and we |
| # should just happily stuff them into the preprocessor/compiler/linker |
| # options and carry on. |
| |
| |
| class UnixCCompiler (CCompiler): |
| |
| compiler_type = 'unix' |
| |
| # These are used by CCompiler in two places: the constructor sets |
| # instance attributes 'preprocessor', 'compiler', etc. from them, and |
| # 'set_executable()' allows any of these to be set. The defaults here |
| # are pretty generic; they will probably have to be set by an outsider |
| # (eg. using information discovered by the sysconfig about building |
| # Python extensions). |
| executables = {'preprocessor' : None, |
| 'compiler' : ["cc"], |
| 'compiler_so' : ["cc"], |
| 'linker_so' : ["cc", "-shared"], |
| 'linker_exe' : ["cc"], |
| 'archiver' : ["ar", "-cr"], |
| 'ranlib' : None, |
| } |
| |
| if sys.platform[:6] == "darwin": |
| executables['ranlib'] = ["ranlib"] |
| |
| # Needed for the filename generation methods provided by the base |
| # class, CCompiler. NB. whoever instantiates/uses a particular |
| # UnixCCompiler instance should set 'shared_lib_ext' -- we set a |
| # reasonable common default here, but it's not necessarily used on all |
| # Unices! |
| |
| src_extensions = [".c",".C",".cc",".cxx",".cpp",".m"] |
| obj_extension = ".o" |
| static_lib_extension = ".a" |
| shared_lib_extension = ".so" |
| dylib_lib_extension = ".dylib" |
| static_lib_format = shared_lib_format = dylib_lib_format = "lib%s%s" |
| |
| |
| |
| def __init__ (self, |
| verbose=0, |
| dry_run=0, |
| force=0): |
| CCompiler.__init__ (self, verbose, dry_run, force) |
| |
| |
| def preprocess (self, |
| source, |
| output_file=None, |
| macros=None, |
| include_dirs=None, |
| extra_preargs=None, |
| extra_postargs=None): |
| |
| (_, macros, include_dirs) = \ |
| self._fix_compile_args(None, macros, include_dirs) |
| pp_opts = gen_preprocess_options(macros, include_dirs) |
| pp_args = self.preprocessor + pp_opts |
| if output_file: |
| pp_args.extend(['-o', output_file]) |
| if extra_preargs: |
| pp_args[:0] = extra_preargs |
| if extra_postargs: |
| pp_args.extend(extra_postargs) |
| |
| # We need to preprocess: either we're being forced to, or we're |
| # generating output to stdout, or there's a target output file and |
| # the source file is newer than the target (or the target doesn't |
| # exist). |
| if self.force or output_file is None or newer(source, output_file): |
| if output_file: |
| self.mkpath(os.path.dirname(output_file)) |
| try: |
| self.spawn(pp_args) |
| except DistutilsExecError, msg: |
| raise CompileError, msg |
| |
| |
| def compile (self, |
| sources, |
| output_dir=None, |
| macros=None, |
| include_dirs=None, |
| debug=0, |
| extra_preargs=None, |
| extra_postargs=None): |
| |
| (output_dir, macros, include_dirs) = \ |
| self._fix_compile_args(output_dir, macros, include_dirs) |
| (objects, skip_sources) = self._prep_compile(sources, output_dir) |
| |
| # Figure out the options for the compiler command line. |
| pp_opts = gen_preprocess_options(macros, include_dirs) |
| cc_args = pp_opts + ['-c'] |
| if debug: |
| cc_args[:0] = ['-g'] |
| if extra_preargs: |
| cc_args[:0] = extra_preargs |
| if extra_postargs is None: |
| extra_postargs = [] |
| |
| # Compile all source files that weren't eliminated by |
| # '_prep_compile()'. |
| for i in range(len(sources)): |
| src = sources[i] ; obj = objects[i] |
| if skip_sources[src]: |
| self.announce("skipping %s (%s up-to-date)" % (src, obj)) |
| else: |
| self.mkpath(os.path.dirname(obj)) |
| try: |
| self.spawn(self.compiler_so + cc_args + |
| [src, '-o', obj] + |
| extra_postargs) |
| except DistutilsExecError, msg: |
| raise CompileError, msg |
| |
| # Return *all* object filenames, not just the ones we just built. |
| return objects |
| |
| # compile () |
| |
| |
| def create_static_lib (self, |
| objects, |
| output_libname, |
| output_dir=None, |
| debug=0): |
| |
| (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): |
| self.mkpath(os.path.dirname(output_filename)) |
| self.spawn(self.archiver + |
| [output_filename] + |
| objects + self.objects) |
| |
| # Not many Unices required ranlib anymore -- SunOS 4.x is, I |
| # think the only major Unix that does. Maybe we need some |
| # platform intelligence here to skip ranlib if it's not |
| # needed -- or maybe Python's configure script took care of |
| # it for us, hence the check for leading colon. |
| if self.ranlib: |
| try: |
| self.spawn(self.ranlib + [output_filename]) |
| except DistutilsExecError, msg: |
| raise LibError, msg |
| else: |
| self.announce("skipping %s (up-to-date)" % output_filename) |
| |
| # create_static_lib () |
| |
| |
| 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): |
| |
| (objects, output_dir) = self._fix_object_args(objects, output_dir) |
| (libraries, library_dirs, runtime_library_dirs) = \ |
| self._fix_lib_args(libraries, library_dirs, runtime_library_dirs) |
| |
| lib_opts = gen_lib_options(self, |
| library_dirs, runtime_library_dirs, |
| libraries) |
| if type(output_dir) not in (StringType, NoneType): |
| raise TypeError, "'output_dir' must be a string or None" |
| if output_dir is not None: |
| output_filename = os.path.join(output_dir, output_filename) |
| |
| if self._need_link(objects, output_filename): |
| ld_args = (objects + self.objects + |
| lib_opts + ['-o', output_filename]) |
| if debug: |
| ld_args[:0] = ['-g'] |
| if extra_preargs: |
| ld_args[:0] = extra_preargs |
| if extra_postargs: |
| ld_args.extend(extra_postargs) |
| self.mkpath(os.path.dirname(output_filename)) |
| try: |
| if target_desc == CCompiler.EXECUTABLE: |
| self.spawn(self.linker_exe + ld_args) |
| else: |
| self.spawn(self.linker_so + ld_args) |
| except DistutilsExecError, msg: |
| raise LinkError, msg |
| else: |
| self.announce("skipping %s (up-to-date)" % output_filename) |
| |
| # link () |
| |
| |
| # -- Miscellaneous methods ----------------------------------------- |
| # These are all used by the 'gen_lib_options() function, in |
| # ccompiler.py. |
| |
| def library_dir_option (self, dir): |
| return "-L" + dir |
| |
| def runtime_library_dir_option (self, dir): |
| # XXX Hackish, at the very least. See Python bug #445902: |
| # http://sourceforge.net/tracker/index.php |
| # ?func=detail&aid=445902&group_id=5470&atid=105470 |
| # Linkers on different platforms need different options to |
| # specify that directories need to be added to the list of |
| # directories searched for dependencies when a dynamic library |
| # is sought. GCC has to be told to pass the -R option through |
| # to the linker, whereas other compilers just know this. |
| # Other compilers may need something slightly different. At |
| # this time, there's no way to determine this information from |
| # the configuration data stored in the Python installation, so |
| # we use this hack. |
| compiler = os.path.basename(sysconfig.get_config_var("CC")) |
| if compiler == "gcc" or compiler == "g++": |
| return "-Wl,-R" + dir |
| else: |
| return "-R" + dir |
| |
| def library_option (self, lib): |
| return "-l" + lib |
| |
| |
| def find_library_file (self, dirs, lib, debug=0): |
| |
| for dir in dirs: |
| shared = os.path.join( |
| dir, self.library_filename(lib, lib_type='shared')) |
| dylib = os.path.join( |
| dir, self.library_filename(lib, lib_type='dylib')) |
| static = os.path.join( |
| dir, self.library_filename(lib, lib_type='static')) |
| |
| # We're second-guessing the linker here, with not much hard |
| # data to go on: GCC seems to prefer the shared library, so I'm |
| # assuming that *all* Unix C compilers do. And of course I'm |
| # ignoring even GCC's "-static" option. So sue me. |
| if os.path.exists(dylib): |
| return dylib |
| elif os.path.exists(shared): |
| return shared |
| elif os.path.exists(static): |
| return static |
| |
| else: |
| # Oops, didn't find it in *any* of 'dirs' |
| return None |
| |
| # find_library_file () |
| |
| # class UnixCCompiler |