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cd8a1148e1
This is a conservative version of SF patch 504889. It uses the log module instead of calling print in various places, and it ignores the verbose argument passed to many functions and set as an attribute on some objects. Instead, it uses the verbosity set on the logger via the command line. The log module is now preferred over announce() and warn() methods that exist only for backwards compatibility. XXX This checkin changes a lot of modules that have no test suite and aren't exercised by the Python build process. It will need substantial testing.
335 lines
12 KiB
Python
335 lines
12 KiB
Python
"""distutils.emxccompiler
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Provides the EMXCCompiler class, a subclass of UnixCCompiler that
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handles the EMX port of the GNU C compiler to OS/2.
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"""
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# issues:
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#
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# * OS/2 insists that DLLs can have names no longer than 8 characters
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# We put export_symbols in a def-file, as though the DLL can have
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# an arbitrary length name, but truncate the output filename.
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#
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# * only use OMF objects and use LINK386 as the linker (-Zomf)
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#
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# * always build for multithreading (-Zmt) as the accompanying OS/2 port
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# of Python is only distributed with threads enabled.
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#
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# tested configurations:
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#
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# * EMX gcc 2.81/EMX 0.9d fix03
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# created 2001/5/7, Andrew MacIntyre, from Rene Liebscher's cywinccompiler.py
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__revision__ = "$Id$"
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import os,sys,copy
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from distutils.ccompiler import gen_preprocess_options, gen_lib_options
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from distutils.unixccompiler import UnixCCompiler
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from distutils.file_util import write_file
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from distutils.errors import DistutilsExecError, CompileError, UnknownFileError
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from distutils import log
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class EMXCCompiler (UnixCCompiler):
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compiler_type = 'emx'
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obj_extension = ".obj"
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static_lib_extension = ".lib"
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shared_lib_extension = ".dll"
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static_lib_format = "%s%s"
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shared_lib_format = "%s%s"
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res_extension = ".res" # compiled resource file
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exe_extension = ".exe"
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def __init__ (self,
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verbose=0,
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dry_run=0,
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force=0):
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UnixCCompiler.__init__ (self, verbose, dry_run, force)
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(status, details) = check_config_h()
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self.debug_print("Python's GCC status: %s (details: %s)" %
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(status, details))
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if status is not CONFIG_H_OK:
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self.warn(
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"Python's pyconfig.h doesn't seem to support your compiler. " +
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("Reason: %s." % details) +
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"Compiling may fail because of undefined preprocessor macros.")
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(self.gcc_version, self.ld_version) = \
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get_versions()
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self.debug_print(self.compiler_type + ": gcc %s, ld %s\n" %
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(self.gcc_version,
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self.ld_version) )
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# Hard-code GCC because that's what this is all about.
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# XXX optimization, warnings etc. should be customizable.
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self.set_executables(compiler='gcc -Zomf -Zmt -O2 -Wall',
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compiler_so='gcc -Zomf -Zmt -O2 -Wall',
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linker_exe='gcc -Zomf -Zmt -Zcrtdll',
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linker_so='gcc -Zomf -Zmt -Zcrtdll -Zdll')
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# want the gcc library statically linked (so that we don't have
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# to distribute a version dependent on the compiler we have)
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self.dll_libraries=["gcc"]
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# __init__ ()
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# not much different of the compile method in UnixCCompiler,
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# but we have to insert some lines in the middle of it, so
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# we put here a adapted version of it.
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# (If we would call compile() in the base class, it would do some
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# initializations a second time, this is why all is done here.)
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def compile (self,
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sources,
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output_dir=None,
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macros=None,
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include_dirs=None,
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debug=0,
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extra_preargs=None,
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extra_postargs=None):
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(output_dir, macros, include_dirs) = \
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self._fix_compile_args (output_dir, macros, include_dirs)
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(objects, skip_sources) = self._prep_compile (sources, output_dir)
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# Figure out the options for the compiler command line.
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pp_opts = gen_preprocess_options (macros, include_dirs)
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cc_args = pp_opts + ['-c']
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if debug:
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cc_args[:0] = ['-g']
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if extra_preargs:
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cc_args[:0] = extra_preargs
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if extra_postargs is None:
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extra_postargs = []
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# Compile all source files that weren't eliminated by
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# '_prep_compile()'.
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for i in range (len (sources)):
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src = sources[i] ; obj = objects[i]
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ext = (os.path.splitext (src))[1]
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if skip_sources[src]:
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log.debug("skipping %s (%s up-to-date)", src, obj)
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else:
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self.mkpath (os.path.dirname (obj))
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if ext == '.rc':
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# gcc requires '.rc' compiled to binary ('.res') files !!!
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try:
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self.spawn (["rc","-r",src])
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except DistutilsExecError, msg:
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raise CompileError, msg
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else: # for other files use the C-compiler
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try:
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self.spawn (self.compiler_so + cc_args +
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[src, '-o', obj] +
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extra_postargs)
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except DistutilsExecError, msg:
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raise CompileError, msg
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# Return *all* object filenames, not just the ones we just built.
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return objects
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# compile ()
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def link (self,
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target_desc,
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objects,
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output_filename,
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output_dir=None,
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libraries=None,
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library_dirs=None,
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runtime_library_dirs=None,
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export_symbols=None,
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debug=0,
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extra_preargs=None,
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extra_postargs=None,
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build_temp=None):
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# use separate copies, so we can modify the lists
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extra_preargs = copy.copy(extra_preargs or [])
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libraries = copy.copy(libraries or [])
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objects = copy.copy(objects or [])
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# Additional libraries
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libraries.extend(self.dll_libraries)
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# handle export symbols by creating a def-file
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# with executables this only works with gcc/ld as linker
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if ((export_symbols is not None) and
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(target_desc != self.EXECUTABLE)):
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# (The linker doesn't do anything if output is up-to-date.
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# So it would probably better to check if we really need this,
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# but for this we had to insert some unchanged parts of
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# UnixCCompiler, and this is not what we want.)
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# we want to put some files in the same directory as the
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# object files are, build_temp doesn't help much
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# where are the object files
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temp_dir = os.path.dirname(objects[0])
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# name of dll to give the helper files the same base name
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(dll_name, dll_extension) = os.path.splitext(
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os.path.basename(output_filename))
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# generate the filenames for these files
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def_file = os.path.join(temp_dir, dll_name + ".def")
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lib_file = os.path.join(temp_dir, dll_name + ".lib")
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# Generate .def file
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contents = [
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"LIBRARY %s INITINSTANCE TERMINSTANCE" % os.path.splitext(os.path.basename(output_filename))[0],
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"DATA MULTIPLE NONSHARED",
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"EXPORTS"]
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for sym in export_symbols:
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contents.append(' "%s"' % sym)
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self.execute(write_file, (def_file, contents),
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"writing %s" % def_file)
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# next add options for def-file and to creating import libraries
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# for gcc/ld the def-file is specified as any other object files
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objects.append(def_file)
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#end: if ((export_symbols is not None) and
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# (target_desc != self.EXECUTABLE or self.linker_dll == "gcc")):
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# who wants symbols and a many times larger output file
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# should explicitly switch the debug mode on
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# otherwise we let dllwrap/ld strip the output file
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# (On my machine: 10KB < stripped_file < ??100KB
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# unstripped_file = stripped_file + XXX KB
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# ( XXX=254 for a typical python extension))
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if not debug:
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extra_preargs.append("-s")
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UnixCCompiler.link(self,
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target_desc,
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objects,
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output_filename,
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output_dir,
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libraries,
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library_dirs,
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runtime_library_dirs,
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None, # export_symbols, we do this in our def-file
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debug,
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extra_preargs,
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extra_postargs,
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build_temp)
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# link ()
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# -- Miscellaneous methods -----------------------------------------
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# overwrite the one from CCompiler to support rc and res-files
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def object_filenames (self,
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source_filenames,
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strip_dir=0,
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output_dir=''):
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if output_dir is None: output_dir = ''
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obj_names = []
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for src_name in source_filenames:
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# use normcase to make sure '.rc' is really '.rc' and not '.RC'
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(base, ext) = os.path.splitext (os.path.normcase(src_name))
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if ext not in (self.src_extensions + ['.rc']):
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raise UnknownFileError, \
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"unknown file type '%s' (from '%s')" % \
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(ext, src_name)
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if strip_dir:
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base = os.path.basename (base)
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if ext == '.rc':
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# these need to be compiled to object files
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obj_names.append (os.path.join (output_dir,
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base + self.res_extension))
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else:
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obj_names.append (os.path.join (output_dir,
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base + self.obj_extension))
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return obj_names
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# object_filenames ()
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# class EMXCCompiler
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# Because these compilers aren't configured in Python's pyconfig.h file by
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# default, we should at least warn the user if he is using a unmodified
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# version.
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CONFIG_H_OK = "ok"
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CONFIG_H_NOTOK = "not ok"
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CONFIG_H_UNCERTAIN = "uncertain"
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def check_config_h():
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"""Check if the current Python installation (specifically, pyconfig.h)
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appears amenable to building extensions with GCC. Returns a tuple
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(status, details), where 'status' is one of the following constants:
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CONFIG_H_OK
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all is well, go ahead and compile
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CONFIG_H_NOTOK
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doesn't look good
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CONFIG_H_UNCERTAIN
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not sure -- unable to read pyconfig.h
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'details' is a human-readable string explaining the situation.
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Note there are two ways to conclude "OK": either 'sys.version' contains
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the string "GCC" (implying that this Python was built with GCC), or the
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installed "pyconfig.h" contains the string "__GNUC__".
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"""
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# XXX since this function also checks sys.version, it's not strictly a
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# "pyconfig.h" check -- should probably be renamed...
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from distutils import sysconfig
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import string
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# if sys.version contains GCC then python was compiled with
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# GCC, and the pyconfig.h file should be OK
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if string.find(sys.version,"GCC") >= 0:
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return (CONFIG_H_OK, "sys.version mentions 'GCC'")
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fn = sysconfig.get_config_h_filename()
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try:
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# It would probably better to read single lines to search.
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# But we do this only once, and it is fast enough
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f = open(fn)
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s = f.read()
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f.close()
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except IOError, exc:
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# if we can't read this file, we cannot say it is wrong
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# the compiler will complain later about this file as missing
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return (CONFIG_H_UNCERTAIN,
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"couldn't read '%s': %s" % (fn, exc.strerror))
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else:
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# "pyconfig.h" contains an "#ifdef __GNUC__" or something similar
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if string.find(s,"__GNUC__") >= 0:
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return (CONFIG_H_OK, "'%s' mentions '__GNUC__'" % fn)
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else:
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return (CONFIG_H_NOTOK, "'%s' does not mention '__GNUC__'" % fn)
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def get_versions():
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""" Try to find out the versions of gcc and ld.
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If not possible it returns None for it.
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"""
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from distutils.version import StrictVersion
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from distutils.spawn import find_executable
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import re
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gcc_exe = find_executable('gcc')
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if gcc_exe:
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out = os.popen(gcc_exe + ' -dumpversion','r')
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out_string = out.read()
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out.close()
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result = re.search('(\d+\.\d+\.\d+)',out_string)
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if result:
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gcc_version = StrictVersion(result.group(1))
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else:
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gcc_version = None
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else:
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gcc_version = None
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# EMX ld has no way of reporting version number, and we use GCC
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# anyway - so we can link OMF DLLs
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ld_version = None
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return (gcc_version, ld_version)
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