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Diffstat (limited to 'Lib/packaging/compiler/unixccompiler.py')
| -rw-r--r-- | Lib/packaging/compiler/unixccompiler.py | 339 |
1 files changed, 0 insertions, 339 deletions
diff --git a/Lib/packaging/compiler/unixccompiler.py b/Lib/packaging/compiler/unixccompiler.py deleted file mode 100644 index 3458faa..0000000 --- a/Lib/packaging/compiler/unixccompiler.py +++ /dev/null @@ -1,339 +0,0 @@ -"""CCompiler implementation for Unix compilers. - -This module 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' -""" - -import os, sys - -from packaging.util import newer -from packaging.compiler.ccompiler import CCompiler -from packaging.compiler import gen_preprocess_options, gen_lib_options -from packaging.errors import (PackagingExecError, CompileError, - LibError, LinkError) -from packaging import logger -import sysconfig - - -# 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 pysetup 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. - -def _darwin_compiler_fixup(compiler_so, cc_args): - """ - This function will strip '-isysroot PATH' and '-arch ARCH' from the - compile flags if the user has specified one them in extra_compile_flags. - - This is needed because '-arch ARCH' adds another architecture to the - build, without a way to remove an architecture. Furthermore GCC will - barf if multiple '-isysroot' arguments are present. - """ - stripArch = stripSysroot = False - - compiler_so = list(compiler_so) - kernel_version = os.uname()[2] # 8.4.3 - major_version = int(kernel_version.split('.')[0]) - - if major_version < 8: - # OSX before 10.4.0, these don't support -arch and -isysroot at - # all. - stripArch = stripSysroot = True - else: - stripArch = '-arch' in cc_args - stripSysroot = '-isysroot' in cc_args - - if stripArch or 'ARCHFLAGS' in os.environ: - while True: - try: - index = compiler_so.index('-arch') - # Strip this argument and the next one: - del compiler_so[index:index+2] - except ValueError: - break - - if 'ARCHFLAGS' in os.environ and not stripArch: - # User specified different -arch flags in the environ, - # see also the sysconfig - compiler_so = compiler_so + os.environ['ARCHFLAGS'].split() - - if stripSysroot: - try: - index = compiler_so.index('-isysroot') - # Strip this argument and the next one: - del compiler_so[index:index+2] - except ValueError: - pass - - # Check if the SDK that is used during compilation actually exists, - # the universal build requires the usage of a universal SDK and not all - # users have that installed by default. - sysroot = None - if '-isysroot' in cc_args: - idx = cc_args.index('-isysroot') - sysroot = cc_args[idx+1] - elif '-isysroot' in compiler_so: - idx = compiler_so.index('-isysroot') - sysroot = compiler_so[idx+1] - - if sysroot and not os.path.isdir(sysroot): - logger.warning( - "compiling with an SDK that doesn't seem to exist: %r;\n" - "please check your Xcode installation", sysroot) - - return compiler_so - -class UnixCCompiler(CCompiler): - - name = 'unix' - description = 'Standard UNIX-style compiler' - - # 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"], - 'compiler_cxx' : ["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. XXX 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" - if sys.platform == "cygwin": - exe_extension = ".exe" - - def preprocess(self, source, - output_file=None, macros=None, include_dirs=None, - extra_preargs=None, extra_postargs=None): - ignore, 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) - pp_args.append(source) - - # 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 PackagingExecError as msg: - raise CompileError(msg) - - def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts): - compiler_so = self.compiler_so - if sys.platform == 'darwin': - compiler_so = _darwin_compiler_fixup(compiler_so, cc_args + extra_postargs) - try: - self.spawn(compiler_so + cc_args + [src, '-o', obj] + - extra_postargs) - except PackagingExecError as msg: - raise CompileError(msg) - - def create_static_lib(self, objects, output_libname, - output_dir=None, debug=False, target_lang=None): - 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 PackagingExecError as msg: - raise LibError(msg) - else: - logger.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=False, extra_preargs=None, - extra_postargs=None, build_temp=None, target_lang=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 (str, type(None)): - 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: - linker = self.linker_exe[:] - else: - linker = self.linker_so[:] - if target_lang == "c++" and self.compiler_cxx: - # skip over environment variable settings if /usr/bin/env - # is used to set up the linker's environment. - # This is needed on OSX. Note: this assumes that the - # normal and C++ compiler have the same environment - # settings. - i = 0 - if os.path.basename(linker[0]) == "env": - i = 1 - while '=' in linker[i]: - i = i + 1 - - linker[i] = self.compiler_cxx[i] - - if sys.platform == 'darwin': - linker = _darwin_compiler_fixup(linker, ld_args) - - self.spawn(linker + ld_args) - except PackagingExecError as msg: - raise LinkError(msg) - else: - logger.debug("skipping %s (up-to-date)", output_filename) - - # -- 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 _is_gcc(self, compiler_name): - return "gcc" in compiler_name or "g++" in compiler_name - - 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 on GNU systems (Linux, FreeBSD, ...) has to - # be told to pass the -R option through to the linker, whereas - # other compilers and gcc on other systems 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 sys.platform[:6] == "darwin": - # MacOSX's linker doesn't understand the -R flag at all - return "-L" + dir - elif sys.platform[:5] == "hp-ux": - if self._is_gcc(compiler): - return ["-Wl,+s", "-L" + dir] - return ["+s", "-L" + dir] - elif sys.platform[:7] == "irix646" or sys.platform[:6] == "osf1V5": - return ["-rpath", dir] - elif self._is_gcc(compiler): - # gcc on non-GNU systems does not need -Wl, but can - # use it anyway. Since distutils has always passed in - # -Wl whenever gcc was used in the past it is probably - # safest to keep doing so. - if sysconfig.get_config_var("GNULD") == "yes": - # GNU ld needs an extra option to get a RUNPATH - # instead of just an RPATH. - return "-Wl,--enable-new-dtags,-R" + dir - else: - return "-Wl,-R" + dir - elif sys.platform[:3] == "aix": - return "-blibpath:" + dir - else: - # No idea how --enable-new-dtags would be passed on to - # ld if this system was using GNU ld. Don't know if a - # system like this even exists. - return "-R" + dir - - def library_option(self, lib): - return "-l" + lib - - def find_library_file(self, dirs, lib, debug=False): - shared_f = self.library_filename(lib, lib_type='shared') - dylib_f = self.library_filename(lib, lib_type='dylib') - static_f = self.library_filename(lib, lib_type='static') - - for dir in dirs: - shared = os.path.join(dir, shared_f) - dylib = os.path.join(dir, dylib_f) - static = os.path.join(dir, static_f) - # 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 - - # Oops, didn't find it in *any* of 'dirs' - return None |