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"""SCons.Tool.mslink
Tool-specific initialization for the Microsoft linker.
There normally shouldn't be any need to import this module directly.
It will usually be imported through the generic SCons.Tool.Tool()
selection method.
"""
#
# Copyright (c) 2001, 2002 Steven Knight
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
import os.path
import string
import SCons.Defaults
import SCons.Errors
import SCons.Action
import SCons.Util
from SCons.Tool.msvc import get_msdev_paths
def win32TempFileMunge(env, cmd_list, for_signature):
"""Given a list of command line arguments, see if it is too
long to pass to the win32 command line interpreter. If so,
create a temp file, then pass "@tempfile" as the sole argument
to the supplied command (which is the first element of cmd_list).
Otherwise, just return [cmd_list]."""
cmd = env.subst_list(cmd_list)[0]
if for_signature or \
(reduce(lambda x, y: x + len(y), cmd, 0) + len(cmd)) <= 2048:
return [cmd_list]
else:
import tempfile
# We do a normpath because mktemp() has what appears to be
# a bug in Win32 that will use a forward slash as a path
# delimiter. Win32's link mistakes that for a command line
# switch and barfs.
tmp = os.path.normpath(tempfile.mktemp())
args = map(SCons.Util.quote_spaces, cmd[1:])
open(tmp, 'w').write(string.join(args, " ") + "\n")
return [ [cmd[0], '@' + tmp],
['del', tmp] ]
def win32LinkGenerator(env, target, source, for_signature, **kw):
args = [ '$LINK', '$LINKFLAGS', '/OUT:%s' % target[0],
'$(', '$_LIBDIRFLAGS', '$)', '$_LIBFLAGS' ]
args.extend(map(SCons.Util.to_String, source))
return win32TempFileMunge(env, args, for_signature)
def win32LibGenerator(target, source, env, for_signature, no_import_lib=0):
listCmd = [ "$SHLINK", "$SHLINKFLAGS" ]
for tgt in target:
ext = os.path.splitext(str(tgt))[1]
if ext == env.subst("$LIBSUFFIX"):
# Put it on the command line as an import library.
if no_import_lib:
raise SCons.Errors.UserError, "%s: You cannot specify a .lib file as a target of a shared library build if no_import_library is nonzero." % tgt
listCmd.append("${WIN32IMPLIBPREFIX}%s" % tgt)
else:
listCmd.append("${WIN32DLLPREFIX}%s" % tgt)
listCmd.extend([ '$_LIBDIRFLAGS', '$_LIBFLAGS' ])
for src in source:
ext = os.path.splitext(str(src))[1]
if ext == env.subst("$WIN32DEFSUFFIX"):
# Treat this source as a .def file.
listCmd.append("${WIN32DEFPREFIX}%s" % src)
else:
# Just treat it as a generic source file.
listCmd.append(str(src))
return win32TempFileMunge(env, listCmd, for_signature)
def win32LibEmitter(target, source, env, no_import_lib=0):
dll = None
for tgt in target:
ext = os.path.splitext(str(tgt))[1]
if ext == env.subst("$SHLIBSUFFIX"):
dll = tgt
break
if not dll:
raise SCons.Errors.UserError, "A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX")
if env.has_key("WIN32_INSERT_DEF") and \
env["WIN32_INSERT_DEF"] and \
not '.def' in map(lambda x: os.path.split(str(x))[1],
source):
# append a def file to the list of sources
source.append("%s%s" % (os.path.splitext(str(dll))[0],
env.subst("$WIN32DEFSUFFIX")))
if not no_import_lib and \
not env.subst("$LIBSUFFIX") in \
map(lambda x: os.path.split(str(x))[1], target):
# Append an import library to the list of targets.
target.append("%s%s%s" % (env.subst("$LIBPREFIX"),
os.path.splitext(str(dll))[0],
env.subst("$LIBSUFFIX")))
return (target, source)
ShLibAction = SCons.Action.CommandGenerator(win32LibGenerator)
LinkAction = SCons.Action.CommandGenerator(win32LinkGenerator)
def generate(env, platform):
"""Add Builders and construction variables for ar to an Environment."""
env['BUILDERS']['SharedLibrary'] = SCons.Defaults.SharedLibrary
env['BUILDERS']['Program'] = SCons.Defaults.Program
env['SHLINK'] = '$LINK'
env['SHLINKFLAGS'] = '$LINKFLAGS /dll'
env['SHLINKCOM'] = ShLibAction
env['SHLIBEMITTER']= win32LibEmitter
env['LINK'] = 'link'
env['LINKFLAGS'] = '/nologo'
env['LINKCOM'] = LinkAction
env['LIBDIRPREFIX']='/LIBPATH:'
env['LIBDIRSUFFIX']=''
env['LIBLINKPREFIX']=''
env['LIBLINKSUFFIX']='$LIBSUFFIX'
env['WIN32DEFPREFIX'] = '/def:'
env['WIN32DEFSUFFIX'] = '.def'
env['WIN32DLLPREFIX'] = '/out:'
env['WIN32IMPLIBPREFIX'] = '/implib:'
env['WIN32_INSERT_DEF'] = 0
include_path, lib_path, exe_path = get_msdev_paths()
env['ENV']['LIB'] = lib_path
env['ENV']['PATH'] = exe_path
def exists(env):
return SCons.Util.Detect(['link'], env)
|
