3 Tool-specific initialization for the Microsoft linker.
5 There normally shouldn't be any need to import this module directly.
6 It will usually be imported through the generic SCons.Tool.Tool()
12 # Copyright (c) 2001, 2002 Steven Knight
14 # Permission is hereby granted, free of charge, to any person obtaining
15 # a copy of this software and associated documentation files (the
16 # "Software"), to deal in the Software without restriction, including
17 # without limitation the rights to use, copy, modify, merge, publish,
18 # distribute, sublicense, and/or sell copies of the Software, and to
19 # permit persons to whom the Software is furnished to do so, subject to
20 # the following conditions:
22 # The above copyright notice and this permission notice shall be included
23 # in all copies or substantial portions of the Software.
25 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
26 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
27 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
29 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
30 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
31 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
42 from SCons.Tool.msvc import get_msdev_paths
44 def win32TempFileMunge(env, cmd_list, for_signature):
45 """Given a list of command line arguments, see if it is too
46 long to pass to the win32 command line interpreter. If so,
47 create a temp file, then pass "@tempfile" as the sole argument
48 to the supplied command (which is the first element of cmd_list).
49 Otherwise, just return [cmd_list]."""
50 cmd = env.subst_list(cmd_list)[0]
52 (reduce(lambda x, y: x + len(y), cmd, 0) + len(cmd)) <= 2048:
56 # We do a normpath because mktemp() has what appears to be
57 # a bug in Win32 that will use a forward slash as a path
58 # delimiter. Win32's link mistakes that for a command line
60 tmp = os.path.normpath(tempfile.mktemp())
61 args = map(SCons.Util.quote_spaces, cmd[1:])
62 open(tmp, 'w').write(string.join(args, " ") + "\n")
63 return [ [cmd[0], '@' + tmp],
66 def win32LinkGenerator(env, target, source, for_signature, **kw):
67 args = [ '$LINK', '$LINKFLAGS', '/OUT:%s' % target[0],
68 '$(', '$_LIBDIRFLAGS', '$)', '$_LIBFLAGS' ]
69 args.extend(map(SCons.Util.to_String, source))
70 return win32TempFileMunge(env, args, for_signature)
72 def win32LibGenerator(target, source, env, for_signature, no_import_lib=0):
73 listCmd = [ "$SHLINK", "$SHLINKFLAGS" ]
76 ext = os.path.splitext(str(tgt))[1]
77 if ext == env.subst("$LIBSUFFIX"):
78 # Put it on the command line as an import library.
80 raise SCons.Errors.UserError, "%s: You cannot specify a .lib file as a target of a shared library build if no_import_library is nonzero." % tgt
81 listCmd.append("${WIN32IMPLIBPREFIX}%s" % tgt)
83 listCmd.append("${WIN32DLLPREFIX}%s" % tgt)
85 listCmd.extend([ '$_LIBDIRFLAGS', '$_LIBFLAGS' ])
87 ext = os.path.splitext(str(src))[1]
88 if ext == env.subst("$WIN32DEFSUFFIX"):
89 # Treat this source as a .def file.
90 listCmd.append("${WIN32DEFPREFIX}%s" % src)
92 # Just treat it as a generic source file.
93 listCmd.append(str(src))
94 return win32TempFileMunge(env, listCmd, for_signature)
96 def win32LibEmitter(target, source, env, no_import_lib=0):
99 ext = os.path.splitext(str(tgt))[1]
100 if ext == env.subst("$SHLIBSUFFIX"):
104 raise SCons.Errors.UserError, "A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX")
106 if env.has_key("WIN32_INSERT_DEF") and \
107 env["WIN32_INSERT_DEF"] and \
108 not '.def' in map(lambda x: os.path.split(str(x))[1],
111 # append a def file to the list of sources
112 source.append("%s%s" % (os.path.splitext(str(dll))[0],
113 env.subst("$WIN32DEFSUFFIX")))
114 if not no_import_lib and \
115 not env.subst("$LIBSUFFIX") in \
116 map(lambda x: os.path.split(str(x))[1], target):
117 # Append an import library to the list of targets.
118 target.append("%s%s%s" % (env.subst("$LIBPREFIX"),
119 os.path.splitext(str(dll))[0],
120 env.subst("$LIBSUFFIX")))
121 return (target, source)
123 ShLibAction = SCons.Action.CommandGenerator(win32LibGenerator)
124 LinkAction = SCons.Action.CommandGenerator(win32LinkGenerator)
126 def generate(env, platform):
127 """Add Builders and construction variables for ar to an Environment."""
128 env['BUILDERS']['SharedLibrary'] = SCons.Defaults.SharedLibrary
129 env['BUILDERS']['Program'] = SCons.Defaults.Program
131 env['SHLINK'] = '$LINK'
132 env['SHLINKFLAGS'] = '$LINKFLAGS /dll'
133 env['SHLINKCOM'] = ShLibAction
134 env['SHLIBEMITTER']= win32LibEmitter
136 env['LINKFLAGS'] = '/nologo'
137 env['LINKCOM'] = LinkAction
138 env['LIBDIRPREFIX']='/LIBPATH:'
139 env['LIBDIRSUFFIX']=''
140 env['LIBLINKPREFIX']=''
141 env['LIBLINKSUFFIX']='$LIBSUFFIX'
143 env['WIN32DEFPREFIX'] = '/def:'
144 env['WIN32DEFSUFFIX'] = '.def'
145 env['WIN32DLLPREFIX'] = '/out:'
146 env['WIN32IMPLIBPREFIX'] = '/implib:'
147 env['WIN32_INSERT_DEF'] = 0
149 include_path, lib_path, exe_path = get_msdev_paths()
150 env['ENV']['LIB'] = lib_path
151 env['ENV']['PATH'] = exe_path