| """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 |
| from types import * |
| from copy import copy |
| from distutils import sysconfig |
| from distutils.ccompiler import CCompiler, gen_preprocess_options, gen_lib_options |
| |
| # 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): |
| |
| # XXX perhaps there should really be *three* kinds of include |
| # directories: those built in to the preprocessor, those from Python's |
| # Makefiles, and those supplied to {add,set}_include_dirs(). Currently |
| # we make no distinction between the latter two at this point; it's all |
| # up to the client class to select the include directories to use above |
| # and beyond the compiler's defaults. That is, both the Python include |
| # directories and any module- or package-specific include directories |
| # are specified via {add,set}_include_dirs(), and there's no way to |
| # distinguish them. This might be a bug. |
| |
| compiler_type = 'unix' |
| |
| # Needed for the filename generation methods provided by the |
| # base class, CCompiler. |
| src_extensions = [".c",".C",".cc",".cxx",".cpp"] |
| obj_extension = ".o" |
| static_lib_extension = ".a" |
| shared_lib_extension = sysconfig.SO |
| static_lib_format = shared_lib_format = "lib%s%s" |
| |
| # Command to create a static library: seems to be pretty consistent |
| # across the major Unices. Might have to move down into the |
| # constructor if we need platform-specific guesswork. |
| archiver = sysconfig.AR |
| archiver_options = "-cr" |
| ranlib = sysconfig.RANLIB |
| |
| |
| def __init__ (self, |
| verbose=0, |
| dry_run=0, |
| force=0): |
| |
| CCompiler.__init__ (self, verbose, dry_run, force) |
| |
| self.preprocess_options = None |
| self.compile_options = None |
| |
| # Munge CC and OPT together in case there are flags stuck in CC. |
| # Note that using these variables from sysconfig immediately makes |
| # this module specific to building Python extensions and |
| # inappropriate as a general-purpose C compiler front-end. So sue |
| # me. Note also that we use OPT rather than CFLAGS, because CFLAGS |
| # is the flags used to compile Python itself -- not only are there |
| # -I options in there, they are the *wrong* -I options. We'll |
| # leave selection of include directories up to the class using |
| # UnixCCompiler! |
| |
| (self.cc, self.ccflags) = \ |
| _split_command (sysconfig.CC + ' ' + sysconfig.OPT) |
| self.ccflags_shared = string.split (sysconfig.CCSHARED) |
| |
| (self.ld_shared, self.ldflags_shared) = \ |
| _split_command (sysconfig.LDSHARED) |
| |
| self.ld_exec = self.cc |
| |
| # __init__ () |
| |
| |
| 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 = ['-c'] + pp_opts + self.ccflags + self.ccflags_shared |
| 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)) |
| self.spawn ([self.cc] + cc_args + [src, '-o', obj] + extra_postargs) |
| |
| # 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, |
| self.archiver_options, |
| 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[0] != ':': |
| self.spawn ([self.ranlib, output_filename]) |
| else: |
| self.announce ("skipping %s (up-to-date)" % output_filename) |
| |
| # create_static_lib () |
| |
| |
| def link_shared_lib (self, |
| objects, |
| output_libname, |
| output_dir=None, |
| libraries=None, |
| library_dirs=None, |
| runtime_library_dirs=None, |
| export_symbols=None, |
| debug=0, |
| extra_preargs=None, |
| extra_postargs=None): |
| self.link_shared_object ( |
| objects, |
| self.shared_library_filename (output_libname), |
| output_dir, |
| libraries, |
| library_dirs, |
| runtime_library_dirs, |
| export_symbols, |
| debug, |
| extra_preargs, |
| extra_postargs) |
| |
| |
| def link_shared_object (self, |
| 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): |
| |
| (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 = (self.ldflags_shared + 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)) |
| self.spawn ([self.ld_shared] + ld_args) |
| else: |
| self.announce ("skipping %s (up-to-date)" % output_filename) |
| |
| # link_shared_object () |
| |
| |
| def link_executable (self, |
| objects, |
| output_progname, |
| output_dir=None, |
| libraries=None, |
| library_dirs=None, |
| runtime_library_dirs=None, |
| debug=0, |
| extra_preargs=None, |
| extra_postargs=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) |
| output_filename = output_progname # Unix-ism! |
| 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)) |
| self.spawn ([self.ld_exec] + ld_args) |
| else: |
| self.announce ("skipping %s (up-to-date)" % output_filename) |
| |
| # link_executable () |
| |
| |
| # -- 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): |
| return "-R" + dir |
| |
| def library_option (self, lib): |
| return "-l" + lib |
| |
| |
| def find_library_file (self, dirs, lib): |
| |
| for dir in dirs: |
| shared = os.path.join (dir, self.shared_library_filename (lib)) |
| static = os.path.join (dir, self.library_filename (lib)) |
| |
| # 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 (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 |
| |
| |
| def _split_command (cmd): |
| """Split a command string up into the progam to run (a string) and |
| the list of arguments; return them as (cmd, arglist).""" |
| args = string.split (cmd) |
| return (args[0], args[1:]) |