Commit 6ad6cbda authored by Greg Ward's avatar Greg Ward

Added msvccompiler module exactly as supplied by Perry Stoll.

parent e168908a
"""distutils.ccompiler
Contains MSVCCompiler, an implementation of the abstract CCompiler class
for the Microsoft Visual Studio """
# created 1999/08/19, Perry Stoll
#
__rcsid__ = "$Id$"
import os
import sys
from distutils.errors import *
from distutils.ccompiler import CCompiler
class MSVCCompiler ( CCompiler) :
"""Abstract base class to define the interface that must be implemented
by real compiler abstraction classes. Might have some use as a
place for shared code, but it's not yet clear what code can be
shared between compiler abstraction models for different platforms.
The basic idea behind a compiler abstraction class is that each
instance can be used for all the compile/link steps in building
a single project. Thus, attributes common to all of those compile
and link steps -- include directories, macros to define, libraries
to link against, etc. -- are attributes of the compiler instance.
To allow for variability in how individual files are treated,
most (all?) of those attributes may be varied on a per-compilation
or per-link basis."""
def __init__ (self,
verbose=0,
dry_run=0):
CCompiler.__init__ (self, verbose, dry_run)
# XXX This is a nasty dependency to add on something otherwise
# pretty clean. move it to build_ext under an nt
# specific part.
# shared libraries need to link against python15.lib
self.add_library ( "python" + sys.version[0] + sys.version[2] )
self.add_library_dir( os.path.join( sys.exec_prefix, 'libs' ) )
self.cc = "cl.exe"
self.link = "link.exe"
self.preprocess_options = None
self.compile_options = [ '/nologo' ]
self.ldflags_shared = ['/DLL', '/nologo']
self.ldflags_static = [ '/nologo']
# XXX things not handled by this compiler abstraction model:
# * client can't provide additional options for a compiler,
# e.g. warning, optimization, debugging flags. Perhaps this
# should be the domain of concrete compiler abstraction classes
# (UnixCCompiler, MSVCCompiler, etc.) -- or perhaps the base
# class should have methods for the common ones.
# * can't put output files (object files, libraries, whatever)
# into a separate directory from their inputs. Should this be
# handled by an 'output_dir' attribute of the whole object, or a
# parameter to the compile/link_* methods, or both?
# * can't completely override the include or library searchg
# path, ie. no "cc -I -Idir1 -Idir2" or "cc -L -Ldir1 -Ldir2".
# I'm not sure how widely supported this is even by Unix
# compilers, much less on other platforms. And I'm even less
# sure how useful it is; maybe for cross-compiling, but
# support for that is a ways off. (And anyways, cross
# compilers probably have a dedicated binary with the
# right paths compiled in. I hope.)
# * can't do really freaky things with the library list/library
# dirs, e.g. "-Ldir1 -lfoo -Ldir2 -lfoo" to link against
# different versions of libfoo.a in different locations. I
# think this is useless without the ability to null out the
# library search path anyways.
# -- Worker methods ------------------------------------------------
# (must be implemented by subclasses)
_c_extensions = [ '.c' ]
_cpp_extensions = [ '.cc', 'cpp' ]
_obj_ext = '.obj'
_exe_ext = 'exe'
_shared_lib_ext = '.dll'
_static_lib_ext = '.lib'
def compile (self,
sources,
macros=None,
includes=None):
"""Compile one or more C/C++ source files. 'sources' must be
a list of strings, each one the name of a C/C++ source
file. Return a list of the object filenames generated
(one for each source filename in 'sources').
'macros', if given, must be a list of macro definitions. A
macro definition is either a (name, value) 2-tuple or a (name,)
1-tuple. The former defines a macro; if the value is None, the
macro is defined without an explicit value. The 1-tuple case
undefines a macro. Later definitions/redefinitions/
undefinitions take precedence.
'includes', if given, must be a list of strings, the directories
to add to the default include file search path for this
compilation only."""
if macros is None:
macros = []
if includes is None:
includes = []
objectFiles = []
base_pp_opts = _gen_preprocess_options (self.macros + macros,
self.include_dirs + includes)
base_pp_opts.append('/c')
for srcFile in sources:
base,ext = os.path.splitext(srcFile)
objFile = base + ".obj"
if ext in self._c_extensions:
fileOpt = "/Tc"
elif ext in self._cpp_extensions:
fileOpt = "/Tp"
inputOpt = fileOpt + srcFile
outputOpt = "/Fo" + objFile
pp_opts = base_pp_opts + [ outputOpt, inputOpt ]
returnCode = self.spawn( [ self.cc ] + self.compile_options + pp_opts )
# XXX check for valid return code
objectFiles.append( objFile )
return objectFiles
# XXX this is kind of useless without 'link_binary()' or
# 'link_executable()' or something -- or maybe 'link_static_lib()'
# should not exist at all, and we just have 'link_binary()'?
def link_static_lib (self,
objects,
output_libname,
libraries=None,
library_dirs=None):
"""Link a bunch of stuff together to create a static library
file. The "bunch of stuff" consists of the list of object
files supplied as 'objects', the extra object files supplied
to 'add_link_object()' and/or 'set_link_objects()', the
libraries supplied to 'add_library()' and/or
'set_libraries()', and the libraries supplied as 'libraries'
(if any).
'output_libname' should be a library name, not a filename;
the filename will be inferred from the library name.
'library_dirs', if supplied, should be a list of additional
directories to search on top of the system default and those
supplied to 'add_library_dir()' and/or 'set_library_dirs()'."""
if libraries is None:
libraries = []
if library_dirs is None:
library_dirs = []
if build_info is None:
build_info = {}
lib_opts = _gen_lib_options (self.libraries + libraries,
self.library_dirs + library_dirs)
if build_info.has_key('def_file') :
lib_opts.append('/DEF:' + build_info['def_file'] )
ld_args = self.ldflags_static + lib_opts + \
objects + ['/OUT:' + output_filename]
self.spawn ( [ self.link ] + ld_args )
def link_shared_lib (self,
objects,
output_libname,
libraries=None,
library_dirs=None,
build_info=None):
"""Link a bunch of stuff together to create a shared library
file. Has the same effect as 'link_static_lib()' except
that the filename inferred from 'output_libname' will most
likely be different, and the type of file generated will
almost certainly be different."""
# XXX should we sanity check the library name? (eg. no
# slashes)
self.link_shared_object (objects, self.shared_library_name(output_libname),
build_info=build_info )
def link_shared_object (self,
objects,
output_filename,
libraries=None,
library_dirs=None,
build_info=None):
"""Link a bunch of stuff together to create a shared object
file. Much like 'link_shared_lib()', except the output
filename is explicitly supplied as 'output_filename'."""
if libraries is None:
libraries = []
if library_dirs is None:
library_dirs = []
if build_info is None:
build_info = {}
lib_opts = _gen_lib_options (self.libraries + libraries,
self.library_dirs + library_dirs)
if build_info.has_key('def_file') :
lib_opts.append('/DEF:' + build_info['def_file'] )
ld_args = self.ldflags_shared + lib_opts + \
objects + ['/OUT:' + output_filename]
self.spawn ( [ self.link ] + ld_args )
# -- Filename mangling methods -------------------------------------
def _change_extensions( self, filenames, newExtension ):
object_filenames = []
for srcFile in filenames:
base,ext = os.path.splitext( srcFile )
# XXX should we strip off any existing path?
object_filenames.append( base + newExtension )
return object_filenames
def object_filenames (self, source_filenames):
"""Return the list of object filenames corresponding to each
specified source filename."""
return self._change_extensions( source_filenames, self._obj_ext )
def shared_object_filename (self, source_filename):
"""Return the shared object filename corresponding to a
specified source filename."""
return self._change_extensions( source_filenames, self._shared_lib_ext )
def library_filename (self, libname):
"""Return the static library filename corresponding to the
specified library name."""
return "lib%s%s" %( libname, self._static_lib_ext )
def shared_library_filename (self, libname):
"""Return the shared library filename corresponding to the
specified library name."""
return "lib%s%s" %( libname, self._shared_lib_ext )
# class MSVCCompiler
def _gen_preprocess_options (macros, includes):
# XXX it would be nice (mainly aesthetic, and so we don't generate
# stupid-looking command lines) to go over 'macros' and eliminate
# redundant definitions/undefinitions (ie. ensure that only the
# latest mention of a particular macro winds up on the command
# line). I don't think it's essential, though, since most (all?)
# Unix C compilers only pay attention to the latest -D or -U
# mention of a macro on their command line. Similar situation for
# 'includes'. I'm punting on both for now. Anyways, weeding out
# redundancies like this should probably be the province of
# CCompiler, since the data structures used are inherited from it
# and therefore common to all CCompiler classes.
pp_opts = []
for macro in macros:
if len (macro) == 1: # undefine this macro
pp_opts.append ("-U%s" % macro[0])
elif len (macro) == 2:
if macro[1] is None: # define with no explicit value
pp_opts.append ("-D%s" % macro[0])
else:
# XXX *don't* need to be clever about quoting the
# macro value here, because we're going to avoid the
# shell at all costs when we spawn the command!
pp_opts.append ("-D%s=%s" % macro)
for dir in includes:
pp_opts.append ("-I%s" % dir)
return pp_opts
def _gen_lib_options (libraries, library_dirs):
lib_opts = []
for dir in library_dirs:
lib_opts.append ("/LIBPATH:%s" % dir)
# XXX it's important that we *not* remove redundant library mentions!
# sometimes you really do have to say "-lfoo -lbar -lfoo" in order to
# resolve all symbols. I just hope we never have to say "-lfoo obj.o
# -lbar" to get things to work -- that's certainly a possibility, but a
# pretty nasty way to arrange your C code.
for lib in libraries:
lib_opts.append ("%s.lib" % lib) # import libraries end in .lib
return lib_opts
# _gen_lib_options ()
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