crossmingw.py revision eaf3ae58a90412da57f7eccbb1085e55be8f9c91
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 i686-pc-mingw32- 57""") 58 59def find(env): 60 for prefix in prefixes: 61 # First search in the SCons path and then the OS path: 62 if env.WhereIs(prefix + 'gcc') or SCons.Util.WhereIs(prefix + 'gcc'): 63 return prefix 64 65 return '' 66 67def shlib_generator(target, source, env, for_signature): 68 cmd = SCons.Util.CLVar(['$SHLINK', '$SHLINKFLAGS']) 69 70 dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX') 71 if dll: cmd.extend(['-o', dll]) 72 73 cmd.extend(['$SOURCES', '$_LIBDIRFLAGS', '$_LIBFLAGS']) 74 75 implib = env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX') 76 if implib: cmd.append('-Wl,--out-implib,'+implib.get_string(for_signature)) 77 78 def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') 79 if def_target: cmd.append('-Wl,--output-def,'+def_target.get_string(for_signature)) 80 81 return [cmd] 82 83def shlib_emitter(target, source, env): 84 dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX') 85 no_import_lib = env.get('no_import_lib', 0) 86 87 if not dll: 88 raise SCons.Errors.UserError, "A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX") 89 90 if not no_import_lib and \ 91 not env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX'): 92 93 # Append an import library to the list of targets. 94 target.append(env.ReplaceIxes(dll, 95 'SHLIBPREFIX', 'SHLIBSUFFIX', 96 'LIBPREFIX', 'LIBSUFFIX')) 97 98 # Append a def file target if there isn't already a def file target 99 # or a def file source. There is no option to disable def file 100 # target emitting, because I can't figure out why someone would ever 101 # want to turn it off. 102 def_source = env.FindIxes(source, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') 103 def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') 104 if not def_source and not def_target: 105 target.append(env.ReplaceIxes(dll, 106 'SHLIBPREFIX', 'SHLIBSUFFIX', 107 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')) 108 109 return (target, source) 110 111 112shlib_action = SCons.Action.Action(shlib_generator, '$SHLINKCOMSTR', generator=1) 113 114res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR') 115 116res_builder = SCons.Builder.Builder(action=res_action, suffix='.o', 117 source_scanner=SCons.Tool.SourceFileScanner) 118SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan) 119 120def generate(env): 121 mingw_prefix = find(env) 122 123 if mingw_prefix: 124 dir = os.path.dirname(env.WhereIs(mingw_prefix + 'gcc') or SCons.Util.WhereIs(mingw_prefix + 'gcc')) 125 126 # The mingw bin directory must be added to the path: 127 path = env['ENV'].get('PATH', []) 128 if not path: 129 path = [] 130 if SCons.Util.is_String(path): 131 path = string.split(path, os.pathsep) 132 133 env['ENV']['PATH'] = string.join([dir] + path, os.pathsep) 134 135 # Most of mingw is the same as gcc and friends... 136 gnu_tools = ['gcc', 'g++', 'gnulink', 'ar', 'gas'] 137 for tool in gnu_tools: 138 SCons.Tool.Tool(tool)(env) 139 140 #... but a few things differ: 141 env['CC'] = mingw_prefix + 'gcc' 142 env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS') 143 env['CXX'] = mingw_prefix + 'g++' 144 env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS') 145 env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared') 146 env['SHLINKCOM'] = shlib_action 147 env.Append(SHLIBEMITTER = [shlib_emitter]) 148 env['LINK'] = mingw_prefix + 'g++' 149 env['AR'] = mingw_prefix + 'ar' 150 env['RANLIB'] = mingw_prefix + 'ranlib' 151 env['LINK'] = mingw_prefix + 'g++' 152 env['AS'] = mingw_prefix + 'as' 153 env['WIN32DEFPREFIX'] = '' 154 env['WIN32DEFSUFFIX'] = '.def' 155 env['SHOBJSUFFIX'] = '.o' 156 env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1 157 158 env['RC'] = mingw_prefix + 'windres' 159 env['RCFLAGS'] = SCons.Util.CLVar('') 160 env['RCCOM'] = '$RC $_CPPDEFFLAGS $_CPPINCFLAGS ${INCPREFIX}${SOURCE.dir} $RCFLAGS -i $SOURCE -o $TARGET' 161 env['BUILDERS']['RES'] = res_builder 162 163 # Some setting from the platform also have to be overridden: 164 env['OBJPREFIX'] = '' 165 env['OBJSUFFIX'] = '.o' 166 env['SHOBJPREFIX'] = '$OBJPREFIX' 167 env['SHOBJSUFFIX'] = '$OBJSUFFIX' 168 env['PROGPREFIX'] = '' 169 env['PROGSUFFIX'] = '.exe' 170 env['LIBPREFIX'] = 'lib' 171 env['LIBSUFFIX'] = '.a' 172 env['SHLIBPREFIX'] = '' 173 env['SHLIBSUFFIX'] = '.dll' 174 env['LIBPREFIXES'] = [ 'lib', '' ] 175 env['LIBSUFFIXES'] = [ '.a', '.lib' ] 176 177 # MinGW port of gdb does not handle well dwarf debug info which is the 178 # default in recent gcc versions 179 env.AppendUnique(CFLAGS = ['-gstabs']) 180 181 env.AppendUnique(CPPDEFINES = [('__MSVCRT_VERSION__', '0x0700')]) 182 #env.AppendUnique(LIBS = ['iberty']) 183 env.AppendUnique(SHLINKFLAGS = ['-Wl,--enable-stdcall-fixup']) 184 #env.AppendUnique(SHLINKFLAGS = ['-Wl,--kill-at']) 185 186def exists(env): 187 return find(env) 188