/usr/lib/python2.7/distutils/emxccompiler.py is in libpython2.7-stdlib 2.7.6-8ubuntu0.5.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 | """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
__revision__ = "$Id$"
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, 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, 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
import string
# if sys.version contains GCC then python was compiled with
# GCC, and the pyconfig.h file should be OK
if string.find(sys.version,"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, 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 string.find(s,"__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)
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)
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