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Diffstat (limited to 'scons/crossmingw.py')
| -rw-r--r-- | scons/crossmingw.py | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/scons/crossmingw.py b/scons/crossmingw.py new file mode 100644 index 0000000000..bf81f16fd6 --- /dev/null +++ b/scons/crossmingw.py @@ -0,0 +1,185 @@ +"""SCons.Tool.gcc + +Tool-specific initialization for MinGW (http://www.mingw.org/) + +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. + +See also http://www.scons.org/wiki/CrossCompilingMingw +""" + +# +# Copyright (c) 2001, 2002, 2003, 2004 The SCons Foundation +# +# 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. +# + +import os +import os.path +import string + +import SCons.Action +import SCons.Builder +import SCons.Tool +import SCons.Util + +# This is what we search for to find mingw: +prefixes = SCons.Util.Split(""" + mingw32- + mingw32msvc- + i386-mingw32- + i486-mingw32- + i586-mingw32- + i686-mingw32- + i386-mingw32msvc- + i486-mingw32msvc- + i586-mingw32msvc- + i686-mingw32msvc- +""") + +def find(env): + for prefix in prefixes: + # First search in the SCons path and then the OS path: + if env.WhereIs(prefix + 'gcc') or SCons.Util.WhereIs(prefix + 'gcc'): + return prefix + + return '' + +def shlib_generator(target, source, env, for_signature): + cmd = SCons.Util.CLVar(['$SHLINK', '$SHLINKFLAGS']) + + dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX') + if dll: cmd.extend(['-o', dll]) + + cmd.extend(['$SOURCES', '$_LIBDIRFLAGS', '$_LIBFLAGS']) + + implib = env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX') + if implib: cmd.append('-Wl,--out-implib,'+implib.get_string(for_signature)) + + def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') + if def_target: cmd.append('-Wl,--output-def,'+def_target.get_string(for_signature)) + + return [cmd] + +def shlib_emitter(target, source, env): + dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX') + no_import_lib = env.get('no_import_lib', 0) + + if not dll: + raise SCons.Errors.UserError, "A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX") + + if not no_import_lib and \ + not env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX'): + + # Append an import library to the list of targets. + target.append(env.ReplaceIxes(dll, + 'SHLIBPREFIX', 'SHLIBSUFFIX', + 'LIBPREFIX', 'LIBSUFFIX')) + + # Append a def file target if there isn't already a def file target + # or a def file source. There is no option to disable def file + # target emitting, because I can't figure out why someone would ever + # want to turn it off. + def_source = env.FindIxes(source, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') + def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX') + if not def_source and not def_target: + target.append(env.ReplaceIxes(dll, + 'SHLIBPREFIX', 'SHLIBSUFFIX', + 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')) + + return (target, source) + + +shlib_action = SCons.Action.Action(shlib_generator, generator=1) + +res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR') + +res_builder = SCons.Builder.Builder(action=res_action, suffix='.o', + source_scanner=SCons.Tool.SourceFileScanner) +SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan) + +def generate(env): + mingw_prefix = find(env) + + if mingw_prefix: + dir = os.path.dirname(env.WhereIs(mingw_prefix + 'gcc') or SCons.Util.WhereIs(mingw_prefix + 'gcc')) + + # The mingw bin directory must be added to the path: + path = env['ENV'].get('PATH', []) + if not path: + path = [] + if SCons.Util.is_String(path): + path = string.split(path, os.pathsep) + + env['ENV']['PATH'] = string.join([dir] + path, os.pathsep) + + # Most of mingw is the same as gcc and friends... + gnu_tools = ['gcc', 'g++', 'gnulink', 'ar', 'gas'] + for tool in gnu_tools: + SCons.Tool.Tool(tool)(env) + + #... but a few things differ: + env['CC'] = mingw_prefix + 'gcc' + env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS') + env['CXX'] = mingw_prefix + 'g++' + env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS') + env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared') + env['SHLINKCOM'] = shlib_action + env.Append(SHLIBEMITTER = [shlib_emitter]) + env['LINK'] = mingw_prefix + 'g++' + env['AR'] = mingw_prefix + 'ar' + env['RANLIB'] = mingw_prefix + 'ranlib' + env['LINK'] = mingw_prefix + 'g++' + env['AS'] = mingw_prefix + 'as' + env['WIN32DEFPREFIX'] = '' + env['WIN32DEFSUFFIX'] = '.def' + env['SHOBJSUFFIX'] = '.o' + env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1 + + env['RC'] = mingw_prefix + 'windres' + env['RCFLAGS'] = SCons.Util.CLVar('') + env['RCCOM'] = '$RC $_CPPDEFFLAGS $_CPPINCFLAGS ${INCPREFIX}${SOURCE.dir} $RCFLAGS -i $SOURCE -o $TARGET' + env['BUILDERS']['RES'] = res_builder + + # Some setting from the platform also have to be overridden: + env['OBJPREFIX'] = '' + env['OBJSUFFIX'] = '.o' + env['SHOBJPREFIX'] = '$OBJPREFIX' + env['SHOBJSUFFIX'] = '$OBJSUFFIX' + env['PROGPREFIX'] = '' + env['PROGSUFFIX'] = '.exe' + env['LIBPREFIX'] = 'lib' + env['LIBSUFFIX'] = '.a' + env['SHLIBPREFIX'] = '' + env['SHLIBSUFFIX'] = '.dll' + env['LIBPREFIXES'] = [ 'lib', '' ] + env['LIBSUFFIXES'] = [ '.a', '.lib' ] + + # MinGW port of gdb does not handle well dwarf debug info which is the + # default in recent gcc versions + env.AppendUnique(CFLAGS = ['-gstabs']) + + env.AppendUnique(LIBS = ['iberty']) + env.AppendUnique(SHLINKFLAGS = ['-Wl,--enable-stdcall-fixup']) + #env.AppendUnique(SHLINKFLAGS = ['-Wl,--kill-at']) + +def exists(env): + return find(env) |