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-rw-r--r--Lib/distutils/emxccompiler.py315
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diff --git a/Lib/distutils/emxccompiler.py b/Lib/distutils/emxccompiler.py
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-"""distutils.emxccompiler
-
-Provides the EMXCCompiler class, a subclass of UnixCCompiler that
-handles the EMX port of the GNU C compiler to OS/2.
-"""
-
-# issues:
-#
-# * OS/2 insists that DLLs can have names no longer than 8 characters
-# We put export_symbols in a def-file, as though the DLL can have
-# an arbitrary length name, but truncate the output filename.
-#
-# * only use OMF objects and use LINK386 as the linker (-Zomf)
-#
-# * always build for multithreading (-Zmt) as the accompanying OS/2 port
-# of Python is only distributed with threads enabled.
-#
-# tested configurations:
-#
-# * EMX gcc 2.81/EMX 0.9d fix03
-
-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
-
-class EMXCCompiler (UnixCCompiler):
-
- compiler_type = 'emx'
- obj_extension = ".obj"
- static_lib_extension = ".lib"
- shared_lib_extension = ".dll"
- static_lib_format = "%s%s"
- shared_lib_format = "%s%s"
- res_extension = ".res" # compiled resource file
- 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." % details) +
- "Compiling may fail because of undefined preprocessor macros.")
-
- (self.gcc_version, self.ld_version) = \
- get_versions()
- self.debug_print(self.compiler_type + ": gcc %s, ld %s\n" %
- (self.gcc_version,
- self.ld_version) )
-
- # Hard-code GCC because that's what this is all about.
- # XXX optimization, warnings etc. should be customizable.
- self.set_executables(compiler='gcc -Zomf -Zmt -O3 -fomit-frame-pointer -mprobe -Wall',
- compiler_so='gcc -Zomf -Zmt -O3 -fomit-frame-pointer -mprobe -Wall',
- linker_exe='gcc -Zomf -Zmt -Zcrtdll',
- linker_so='gcc -Zomf -Zmt -Zcrtdll -Zdll')
-
- # want the gcc library statically linked (so that we don't have
- # to distribute a version dependent on the compiler we have)
- self.dll_libraries=["gcc"]
-
- # __init__ ()
-
- def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
- if ext == '.rc':
- # gcc requires '.rc' compiled to binary ('.res') files !!!
- try:
- self.spawn(["rc", "-r", src])
- except DistutilsExecError as 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 as 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)):
- # (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")
-
- # Generate .def file
- contents = [
- "LIBRARY %s INITINSTANCE TERMINSTANCE" % \
- os.path.splitext(os.path.basename(output_filename))[0],
- "DATA MULTIPLE NONSHARED",
- "EXPORTS"]
- for sym in export_symbols:
- contents.append(' "%s"' % sym)
- self.execute(write_file, (def_file, contents),
- "writing %s" % def_file)
-
- # next add options for def-file and to creating import libraries
- # for gcc/ld the def-file is specified as any other 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 -----------------------------------------
-
- # override the object_filenames method 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']):
- raise UnknownFileError("unknown file type '%s' (from '%s')" % \
- (ext, src_name))
- if strip_dir:
- base = os.path.basename (base)
- if ext == '.rc':
- # these need to be compiled to object files
- obj_names.append (os.path.join (output_dir,
- base + self.res_extension))
- else:
- obj_names.append (os.path.join (output_dir,
- base + self.obj_extension))
- return obj_names
-
- # object_filenames ()
-
- # override the find_library_file method from UnixCCompiler
- # to deal with file naming/searching differences
- def find_library_file(self, dirs, lib, debug=0):
- shortlib = '%s.lib' % lib
- longlib = 'lib%s.lib' % lib # this form very rare
-
- # get EMX's default library directory search path
- try:
- emx_dirs = os.environ['LIBRARY_PATH'].split(';')
- except KeyError:
- emx_dirs = []
-
- for dir in dirs + emx_dirs:
- shortlibp = os.path.join(dir, shortlib)
- longlibp = os.path.join(dir, longlib)
- if os.path.exists(shortlibp):
- return shortlibp
- elif os.path.exists(longlibp):
- return longlibp
-
- # Oops, didn't find it in *any* of 'dirs'
- return None
-
-# class EMXCCompiler
-
-
-# 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
- # if sys.version contains GCC then python was compiled with
- # GCC, and the pyconfig.h file should be OK
- if sys.version.find("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 as 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 s.find("__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 and ld.
- If not possible it returns None for it.
- """
- from distutils.version import StrictVersion
- from distutils.spawn import find_executable
- import re
-
- gcc_exe = find_executable('gcc')
- if gcc_exe:
- out = os.popen(gcc_exe + ' -dumpversion','r')
- try:
- out_string = out.read()
- finally:
- out.close()
- result = re.search('(\d+\.\d+\.\d+)', out_string, re.ASCII)
- if result:
- gcc_version = StrictVersion(result.group(1))
- else:
- gcc_version = None
- else:
- gcc_version = None
- # EMX ld has no way of reporting version number, and we use GCC
- # anyway - so we can link OMF DLLs
- ld_version = None
- return (gcc_version, ld_version)