crossmingw.py revision 9ea277ba7aac23c66c8879f71ff885d11c034aae
1"""SCons.Tool.gcc 2 3Tool-specific initialization for MinGW (http://www.mingw.org/) 4 5There normally shouldn't be any need to import this module directly. 6It will usually be imported through the generic SCons.Tool.Tool() 7selection method. 8 9See also http://www.scons.org/wiki/CrossCompilingMingw 10""" 11 12# 13# Copyright (c) 2001, 2002, 2003, 2004 The SCons Foundation 14# 15# Permission is hereby granted, free of charge, to any person obtaining 16# a copy of this software and associated documentation files (the 17# "Software"), to deal in the Software without restriction, including 18# without limitation the rights to use, copy, modify, merge, publish, 19# distribute, sublicense, and/or sell copies of the Software, and to 20# permit persons to whom the Software is furnished to do so, subject to 21# the following conditions: 22# 23# The above copyright notice and this permission notice shall be included 24# in all copies or substantial portions of the Software. 25# 26# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY 27# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 28# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 30# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 31# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 32# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 33# 34 35import os 36import os.path 37import string 38 39import SCons.Action 40import SCons.Builder 41import SCons.Tool 42import SCons.Util 43 44# This is what we search for to find mingw: 45prefixes = SCons.Util.Split(""" 46 mingw32- 47 mingw32msvc- 48 i386-mingw32- 49 i486-mingw32- 50 i586-mingw32- 51 i686-mingw32- 52 i386-mingw32msvc- 53 i486-mingw32msvc- 54 i586-mingw32msvc- 55 i686-mingw32msvc- 56""") 57 58def find(env): 59 for prefix in prefixes: 60 # First search in the SCons path and then the OS path: 61 if env.WhereIs(prefix + 'gcc') or SCons.Util.WhereIs(prefix + 'gcc'): 62 return prefix 63 64 return '' 65 66def shlib_generator(target, source, env, for_signature): 67 cmd = SCons.Util.CLVar(['$SHLINK', '$SHLINKFLAGS']) 68 69 dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX') 70 if dll: cmd.extend(['-o', dll]) 71 72 cmd.extend(['$SOURCES', '$_LIBDIRFLAGS', '$_LIBFLAGS']) 73 74 implib = env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX') 75 if implib: cmd.append('-Wl,--out-implib,'+implib.get_string(for_signature)) 76 77 def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') 78 if def_target: cmd.append('-Wl,--output-def,'+def_target.get_string(for_signature)) 79 80 return [cmd] 81 82def shlib_emitter(target, source, env): 83 dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX') 84 no_import_lib = env.get('no_import_lib', 0) 85 86 if not dll: 87 raise SCons.Errors.UserError, "A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX") 88 89 if not no_import_lib and \ 90 not env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX'): 91 92 # Append an import library to the list of targets. 93 target.append(env.ReplaceIxes(dll, 94 'SHLIBPREFIX', 'SHLIBSUFFIX', 95 'LIBPREFIX', 'LIBSUFFIX')) 96 97 # Append a def file target if there isn't already a def file target 98 # or a def file source. There is no option to disable def file 99 # target emitting, because I can't figure out why someone would ever 100 # want to turn it off. 101 def_source = env.FindIxes(source, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') 102 def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') 103 if not def_source and not def_target: 104 target.append(env.ReplaceIxes(dll, 105 'SHLIBPREFIX', 'SHLIBSUFFIX', 106 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')) 107 108 return (target, source) 109 110 111shlib_action = SCons.Action.Action(shlib_generator, '$SHLINKCOMSTR', generator=1) 112 113res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR') 114 115res_builder = SCons.Builder.Builder(action=res_action, suffix='.o', 116 source_scanner=SCons.Tool.SourceFileScanner) 117SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan) 118 119def generate(env): 120 mingw_prefix = find(env) 121 122 if mingw_prefix: 123 dir = os.path.dirname(env.WhereIs(mingw_prefix + 'gcc') or SCons.Util.WhereIs(mingw_prefix + 'gcc')) 124 125 # The mingw bin directory must be added to the path: 126 path = env['ENV'].get('PATH', []) 127 if not path: 128 path = [] 129 if SCons.Util.is_String(path): 130 path = string.split(path, os.pathsep) 131 132 env['ENV']['PATH'] = string.join([dir] + path, os.pathsep) 133 134 # Most of mingw is the same as gcc and friends... 135 gnu_tools = ['gcc', 'g++', 'gnulink', 'ar', 'gas'] 136 for tool in gnu_tools: 137 SCons.Tool.Tool(tool)(env) 138 139 #... but a few things differ: 140 env['CC'] = mingw_prefix + 'gcc' 141 env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS') 142 env['CXX'] = mingw_prefix + 'g++' 143 env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS') 144 env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared') 145 env['SHLINKCOM'] = shlib_action 146 env.Append(SHLIBEMITTER = [shlib_emitter]) 147 env['LINK'] = mingw_prefix + 'g++' 148 env['AR'] = mingw_prefix + 'ar' 149 env['RANLIB'] = mingw_prefix + 'ranlib' 150 env['LINK'] = mingw_prefix + 'g++' 151 env['AS'] = mingw_prefix + 'as' 152 env['WIN32DEFPREFIX'] = '' 153 env['WIN32DEFSUFFIX'] = '.def' 154 env['SHOBJSUFFIX'] = '.o' 155 env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1 156 157 env['RC'] = mingw_prefix + 'windres' 158 env['RCFLAGS'] = SCons.Util.CLVar('') 159 env['RCCOM'] = '$RC $_CPPDEFFLAGS $_CPPINCFLAGS ${INCPREFIX}${SOURCE.dir} $RCFLAGS -i $SOURCE -o $TARGET' 160 env['BUILDERS']['RES'] = res_builder 161 162 # Some setting from the platform also have to be overridden: 163 env['OBJPREFIX'] = '' 164 env['OBJSUFFIX'] = '.o' 165 env['SHOBJPREFIX'] = '$OBJPREFIX' 166 env['SHOBJSUFFIX'] = '$OBJSUFFIX' 167 env['PROGPREFIX'] = '' 168 env['PROGSUFFIX'] = '.exe' 169 env['LIBPREFIX'] = 'lib' 170 env['LIBSUFFIX'] = '.a' 171 env['SHLIBPREFIX'] = '' 172 env['SHLIBSUFFIX'] = '.dll' 173 env['LIBPREFIXES'] = [ 'lib', '' ] 174 env['LIBSUFFIXES'] = [ '.a', '.lib' ] 175 176 # MinGW port of gdb does not handle well dwarf debug info which is the 177 # default in recent gcc versions 178 env.AppendUnique(CFLAGS = ['-gstabs']) 179 180 #env.AppendUnique(LIBS = ['iberty']) 181 env.AppendUnique(SHLINKFLAGS = ['-Wl,--enable-stdcall-fixup']) 182 #env.AppendUnique(SHLINKFLAGS = ['-Wl,--kill-at']) 183 184def exists(env): 185 return find(env) 186