"""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: prefixes32 = SCons.Util.Split(""" mingw32- mingw32msvc- i386-mingw32- i486-mingw32- i586-mingw32- i686-mingw32- i386-mingw32msvc- i486-mingw32msvc- i586-mingw32msvc- i686-mingw32msvc- i686-pc-mingw32- i686-w64-mingw32- """) prefixes64 = SCons.Util.Split(""" amd64-mingw32- amd64-mingw32msvc- amd64-pc-mingw32- x86_64-w64-mingw32- """) def find(env): if env['machine'] == 'x86_64': prefixes = prefixes64 else: prefixes = prefixes32 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, '$SHLINKCOMSTR', generator=1) res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR') res_builder = SCons.Builder.Builder(action=res_action, suffix='.o', source_scanner=SCons.Tool.SourceFileScanner) SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan) def compile_without_gstabs(env, sources, c_file): '''This is a hack used to compile some source files without the -gstabs option. It seems that some versions of mingw32's gcc (4.4.2 at least) die when compiling large files with the -gstabs option. -gstabs is related to debug symbols and can be omitted from the effected files. This function compiles the given c_file without -gstabs, removes the c_file from the sources list, then appends the new .o file to sources. Then return the new sources list. ''' # Modify CCFLAGS to not have -gstabs option: env2 = env.Clone() flags = str(env2['CCFLAGS']) flags = flags.replace("-gstabs", "") env2['CCFLAGS'] = SCons.Util.CLVar(flags) # Build the special-case files: obj_file = env2.SharedObject(c_file) # Replace ".cpp" or ".c" with ".o" o_file = c_file.replace(".cpp", ".o") o_file = o_file.replace(".c", ".o") # Replace the .c files with the specially-compiled .o file sources.remove(c_file) sources.append(o_file) return sources def generate(env): mingw_prefix = find(env) if mingw_prefix: dir = os.path.dirname(env.WhereIs(mingw_prefix + 'gcc') or SCons.Util.WhereIs(mingw_prefix + 'gcc')) # The mingw bin directory must be added to the path: path = env['ENV'].get('PATH', []) if not path: path = [] if SCons.Util.is_String(path): path = string.split(path, os.pathsep) env['ENV']['PATH'] = string.join([dir] + path, os.pathsep) # Most of mingw is the same as gcc and friends... gnu_tools = ['gcc', 'g++', 'gnulink', 'ar', 'gas'] for tool in gnu_tools: SCons.Tool.Tool(tool)(env) #... but a few things differ: env['CC'] = mingw_prefix + 'gcc' env['SHCCFLAGS'] = SCons.Util.CLVar('$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(CCFLAGS = ['-gstabs']) env.AppendUnique(CPPDEFINES = [('__MSVCRT_VERSION__', '0x0700')]) #env.AppendUnique(LIBS = ['iberty']) env.AppendUnique(SHLINKFLAGS = ['-Wl,--enable-stdcall-fixup']) #env.AppendUnique(SHLINKFLAGS = ['-Wl,--kill-at']) # Avoid depending on gcc runtime DLLs env.AppendUnique(LINKFLAGS = ['-static-libgcc']) env.AddMethod(compile_without_gstabs, 'compile_without_gstabs') def exists(env): return find(env)