crossmingw.py revision f816937d77e499b57f011345ce2a5e1c02ef5e91
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: 45prefixes32 = 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 i686-pc-mingw32- 57""") 58prefixes64 = SCons.Util.Split(""" 59 amd64-mingw32- 60 amd64-mingw32msvc- 61 amd64-pc-mingw32- 62""") 63 64def find(env): 65 if env['machine'] == 'x86_64': 66 prefixes = prefixes64 67 else: 68 prefixes = prefixes32 69 for prefix in prefixes: 70 # First search in the SCons path and then the OS path: 71 if env.WhereIs(prefix + 'gcc') or SCons.Util.WhereIs(prefix + 'gcc'): 72 return prefix 73 74 return '' 75 76def shlib_generator(target, source, env, for_signature): 77 cmd = SCons.Util.CLVar(['$SHLINK', '$SHLINKFLAGS']) 78 79 dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX') 80 if dll: cmd.extend(['-o', dll]) 81 82 cmd.extend(['$SOURCES', '$_LIBDIRFLAGS', '$_LIBFLAGS']) 83 84 implib = env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX') 85 if implib: cmd.append('-Wl,--out-implib,'+implib.get_string(for_signature)) 86 87 def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') 88 if def_target: cmd.append('-Wl,--output-def,'+def_target.get_string(for_signature)) 89 90 return [cmd] 91 92def shlib_emitter(target, source, env): 93 dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX') 94 no_import_lib = env.get('no_import_lib', 0) 95 96 if not dll: 97 raise SCons.Errors.UserError, "A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX") 98 99 if not no_import_lib and \ 100 not env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX'): 101 102 # Append an import library to the list of targets. 103 target.append(env.ReplaceIxes(dll, 104 'SHLIBPREFIX', 'SHLIBSUFFIX', 105 'LIBPREFIX', 'LIBSUFFIX')) 106 107 # Append a def file target if there isn't already a def file target 108 # or a def file source. There is no option to disable def file 109 # target emitting, because I can't figure out why someone would ever 110 # want to turn it off. 111 def_source = env.FindIxes(source, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') 112 def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') 113 if not def_source and not def_target: 114 target.append(env.ReplaceIxes(dll, 115 'SHLIBPREFIX', 'SHLIBSUFFIX', 116 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')) 117 118 return (target, source) 119 120 121shlib_action = SCons.Action.Action(shlib_generator, '$SHLINKCOMSTR', generator=1) 122 123res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR') 124 125res_builder = SCons.Builder.Builder(action=res_action, suffix='.o', 126 source_scanner=SCons.Tool.SourceFileScanner) 127SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan) 128 129def generate(env): 130 mingw_prefix = find(env) 131 132 if mingw_prefix: 133 dir = os.path.dirname(env.WhereIs(mingw_prefix + 'gcc') or SCons.Util.WhereIs(mingw_prefix + 'gcc')) 134 135 # The mingw bin directory must be added to the path: 136 path = env['ENV'].get('PATH', []) 137 if not path: 138 path = [] 139 if SCons.Util.is_String(path): 140 path = string.split(path, os.pathsep) 141 142 env['ENV']['PATH'] = string.join([dir] + path, os.pathsep) 143 144 # Most of mingw is the same as gcc and friends... 145 gnu_tools = ['gcc', 'g++', 'gnulink', 'ar', 'gas'] 146 for tool in gnu_tools: 147 SCons.Tool.Tool(tool)(env) 148 149 #... but a few things differ: 150 env['CC'] = mingw_prefix + 'gcc' 151 env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS') 152 env['CXX'] = mingw_prefix + 'g++' 153 env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS') 154 env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared') 155 env['SHLINKCOM'] = shlib_action 156 env.Append(SHLIBEMITTER = [shlib_emitter]) 157 env['LINK'] = mingw_prefix + 'g++' 158 env['AR'] = mingw_prefix + 'ar' 159 env['RANLIB'] = mingw_prefix + 'ranlib' 160 env['LINK'] = mingw_prefix + 'g++' 161 env['AS'] = mingw_prefix + 'as' 162 env['WIN32DEFPREFIX'] = '' 163 env['WIN32DEFSUFFIX'] = '.def' 164 env['SHOBJSUFFIX'] = '.o' 165 env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1 166 167 env['RC'] = mingw_prefix + 'windres' 168 env['RCFLAGS'] = SCons.Util.CLVar('') 169 env['RCCOM'] = '$RC $_CPPDEFFLAGS $_CPPINCFLAGS ${INCPREFIX}${SOURCE.dir} $RCFLAGS -i $SOURCE -o $TARGET' 170 env['BUILDERS']['RES'] = res_builder 171 172 # Some setting from the platform also have to be overridden: 173 env['OBJPREFIX'] = '' 174 env['OBJSUFFIX'] = '.o' 175 env['SHOBJPREFIX'] = '$OBJPREFIX' 176 env['SHOBJSUFFIX'] = '$OBJSUFFIX' 177 env['PROGPREFIX'] = '' 178 env['PROGSUFFIX'] = '.exe' 179 env['LIBPREFIX'] = 'lib' 180 env['LIBSUFFIX'] = '.a' 181 env['SHLIBPREFIX'] = '' 182 env['SHLIBSUFFIX'] = '.dll' 183 env['LIBPREFIXES'] = [ 'lib', '' ] 184 env['LIBSUFFIXES'] = [ '.a', '.lib' ] 185 186 # MinGW port of gdb does not handle well dwarf debug info which is the 187 # default in recent gcc versions 188 env.AppendUnique(CCFLAGS = ['-gstabs']) 189 190 env.AppendUnique(CPPDEFINES = [('__MSVCRT_VERSION__', '0x0700')]) 191 #env.AppendUnique(LIBS = ['iberty']) 192 env.AppendUnique(SHLINKFLAGS = ['-Wl,--enable-stdcall-fixup']) 193 #env.AppendUnique(SHLINKFLAGS = ['-Wl,--kill-at']) 194 195def exists(env): 196 return find(env) 197