| """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(""" |
| x86_64-w64-mingw32- |
| amd64-mingw32- |
| amd64-mingw32msvc- |
| amd64-pc-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 x86 port of gdb does not handle well dwarf debug info which is the |
| # default in recent gcc versions. The x64 port gdb from mingw-w64 seems to |
| # handle it fine though, so stick with the default there. |
| if env['machine'] != 'x86_64': |
| env.AppendUnique(CCFLAGS = ['-gstabs']) |
| |
| env.AddMethod(compile_without_gstabs, 'compile_without_gstabs') |
| |
| def exists(env): |
| return find(env) |
