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Diffstat (limited to 'engine/SCons/Tool/msvc.py')
| -rw-r--r-- | engine/SCons/Tool/msvc.py | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/engine/SCons/Tool/msvc.py b/engine/SCons/Tool/msvc.py new file mode 100644 index 0000000..d93bfa7 --- /dev/null +++ b/engine/SCons/Tool/msvc.py @@ -0,0 +1,278 @@ +"""engine.SCons.Tool.msvc + +Tool-specific initialization for Microsoft Visual C/C++. + +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. + +""" + +# +# Copyright (c) 2001 - 2014 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. +# + +__revision__ = "src/engine/SCons/Tool/msvc.py 2014/09/27 12:51:43 garyo" + +import os.path +import re +import sys + +import SCons.Action +import SCons.Builder +import SCons.Errors +import SCons.Platform.win32 +import SCons.Tool +import SCons.Tool.msvs +import SCons.Util +import SCons.Warnings +import SCons.Scanner.RC + +from MSCommon import msvc_exists, msvc_setup_env_once + +CSuffixes = ['.c', '.C'] +CXXSuffixes = ['.cc', '.cpp', '.cxx', '.c++', '.C++'] + +def validate_vars(env): + """Validate the PCH and PCHSTOP construction variables.""" + if 'PCH' in env and env['PCH']: + if 'PCHSTOP' not in env: + raise SCons.Errors.UserError("The PCHSTOP construction must be defined if PCH is defined.") + if not SCons.Util.is_String(env['PCHSTOP']): + raise SCons.Errors.UserError("The PCHSTOP construction variable must be a string: %r"%env['PCHSTOP']) + +def pch_emitter(target, source, env): + """Adds the object file target.""" + + validate_vars(env) + + pch = None + obj = None + + for t in target: + if SCons.Util.splitext(str(t))[1] == '.pch': + pch = t + if SCons.Util.splitext(str(t))[1] == '.obj': + obj = t + + if not obj: + obj = SCons.Util.splitext(str(pch))[0]+'.obj' + + target = [pch, obj] # pch must be first, and obj second for the PCHCOM to work + + return (target, source) + +def object_emitter(target, source, env, parent_emitter): + """Sets up the PCH dependencies for an object file.""" + + validate_vars(env) + + parent_emitter(target, source, env) + + # Add a dependency, but only if the target (e.g. 'Source1.obj') + # doesn't correspond to the pre-compiled header ('Source1.pch'). + # If the basenames match, then this was most likely caused by + # someone adding the source file to both the env.PCH() and the + # env.Program() calls, and adding the explicit dependency would + # cause a cycle on the .pch file itself. + # + # See issue #2505 for a discussion of what to do if it turns + # out this assumption causes trouble in the wild: + # http://scons.tigris.org/issues/show_bug.cgi?id=2505 + if 'PCH' in env: + pch = env['PCH'] + if str(target[0]) != SCons.Util.splitext(str(pch))[0] + '.obj': + env.Depends(target, pch) + + return (target, source) + +def static_object_emitter(target, source, env): + return object_emitter(target, source, env, + SCons.Defaults.StaticObjectEmitter) + +def shared_object_emitter(target, source, env): + return object_emitter(target, source, env, + SCons.Defaults.SharedObjectEmitter) + +pch_action = SCons.Action.Action('$PCHCOM', '$PCHCOMSTR') +pch_builder = SCons.Builder.Builder(action=pch_action, suffix='.pch', + emitter=pch_emitter, + source_scanner=SCons.Tool.SourceFileScanner) + + +# Logic to build .rc files into .res files (resource files) +res_scanner = SCons.Scanner.RC.RCScan() +res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR') +res_builder = SCons.Builder.Builder(action=res_action, + src_suffix='.rc', + suffix='.res', + src_builder=[], + source_scanner=res_scanner) + +def msvc_batch_key(action, env, target, source): + """ + Returns a key to identify unique batches of sources for compilation. + + If batching is enabled (via the $MSVC_BATCH setting), then all + target+source pairs that use the same action, defined by the same + environment, and have the same target and source directories, will + be batched. + + Returning None specifies that the specified target+source should not + be batched with other compilations. + """ + + # Fixing MSVC_BATCH mode. Previous if did not work when MSVC_BATCH + # was set to False. This new version should work better. + # Note we need to do the env.subst so $MSVC_BATCH can be a reference to + # another construction variable, which is why we test for False and 0 + # as strings. + if not 'MSVC_BATCH' in env or env.subst('$MSVC_BATCH') in ('0', 'False', '', None): + # We're not using batching; return no key. + return None + t = target[0] + s = source[0] + if os.path.splitext(t.name)[0] != os.path.splitext(s.name)[0]: + # The base names are different, so this *must* be compiled + # separately; return no key. + return None + return (id(action), id(env), t.dir, s.dir) + +def msvc_output_flag(target, source, env, for_signature): + """ + Returns the correct /Fo flag for batching. + + If batching is disabled or there's only one source file, then we + return an /Fo string that specifies the target explicitly. Otherwise, + we return an /Fo string that just specifies the first target's + directory (where the Visual C/C++ compiler will put the .obj files). + """ + + # Fixing MSVC_BATCH mode. Previous if did not work when MSVC_BATCH + # was set to False. This new version should work better. Removed + # len(source)==1 as batch mode can compile only one file + # (and it also fixed problem with compiling only one changed file + # with batch mode enabled) + if not 'MSVC_BATCH' in env or env.subst('$MSVC_BATCH') in ('0', 'False', '', None): + return '/Fo$TARGET' + else: + # The Visual C/C++ compiler requires a \ at the end of the /Fo + # option to indicate an output directory. We use os.sep here so + # that the test(s) for this can be run on non-Windows systems + # without having a hard-coded backslash mess up command-line + # argument parsing. + return '/Fo${TARGET.dir}' + os.sep + +CAction = SCons.Action.Action("$CCCOM", "$CCCOMSTR", + batch_key=msvc_batch_key, + targets='$CHANGED_TARGETS') +ShCAction = SCons.Action.Action("$SHCCCOM", "$SHCCCOMSTR", + batch_key=msvc_batch_key, + targets='$CHANGED_TARGETS') +CXXAction = SCons.Action.Action("$CXXCOM", "$CXXCOMSTR", + batch_key=msvc_batch_key, + targets='$CHANGED_TARGETS') +ShCXXAction = SCons.Action.Action("$SHCXXCOM", "$SHCXXCOMSTR", + batch_key=msvc_batch_key, + targets='$CHANGED_TARGETS') + +def generate(env): + """Add Builders and construction variables for MSVC++ to an Environment.""" + static_obj, shared_obj = SCons.Tool.createObjBuilders(env) + + # TODO(batch): shouldn't reach in to cmdgen this way; necessary + # for now to bypass the checks in Builder.DictCmdGenerator.__call__() + # and allow .cc and .cpp to be compiled in the same command line. + static_obj.cmdgen.source_ext_match = False + shared_obj.cmdgen.source_ext_match = False + + for suffix in CSuffixes: + static_obj.add_action(suffix, CAction) + shared_obj.add_action(suffix, ShCAction) + static_obj.add_emitter(suffix, static_object_emitter) + shared_obj.add_emitter(suffix, shared_object_emitter) + + for suffix in CXXSuffixes: + static_obj.add_action(suffix, CXXAction) + shared_obj.add_action(suffix, ShCXXAction) + static_obj.add_emitter(suffix, static_object_emitter) + shared_obj.add_emitter(suffix, shared_object_emitter) + + env['CCPDBFLAGS'] = SCons.Util.CLVar(['${(PDB and "/Z7") or ""}']) + env['CCPCHFLAGS'] = SCons.Util.CLVar(['${(PCH and "/Yu%s \\\"/Fp%s\\\""%(PCHSTOP or "",File(PCH))) or ""}']) + env['_MSVC_OUTPUT_FLAG'] = msvc_output_flag + env['_CCCOMCOM'] = '$CPPFLAGS $_CPPDEFFLAGS $_CPPINCFLAGS $CCPCHFLAGS $CCPDBFLAGS' + env['CC'] = 'cl' + env['CCFLAGS'] = SCons.Util.CLVar('/nologo') + env['CFLAGS'] = SCons.Util.CLVar('') + env['CCCOM'] = '${TEMPFILE("$CC $_MSVC_OUTPUT_FLAG /c $CHANGED_SOURCES $CFLAGS $CCFLAGS $_CCCOMCOM")}' + env['SHCC'] = '$CC' + env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS') + env['SHCFLAGS'] = SCons.Util.CLVar('$CFLAGS') + env['SHCCCOM'] = '${TEMPFILE("$SHCC $_MSVC_OUTPUT_FLAG /c $CHANGED_SOURCES $SHCFLAGS $SHCCFLAGS $_CCCOMCOM")}' + env['CXX'] = '$CC' + env['CXXFLAGS'] = SCons.Util.CLVar('$( /TP $)') + env['CXXCOM'] = '${TEMPFILE("$CXX $_MSVC_OUTPUT_FLAG /c $CHANGED_SOURCES $CXXFLAGS $CCFLAGS $_CCCOMCOM")}' + env['SHCXX'] = '$CXX' + env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS') + env['SHCXXCOM'] = '${TEMPFILE("$SHCXX $_MSVC_OUTPUT_FLAG /c $CHANGED_SOURCES $SHCXXFLAGS $SHCCFLAGS $_CCCOMCOM")}' + env['CPPDEFPREFIX'] = '/D' + env['CPPDEFSUFFIX'] = '' + env['INCPREFIX'] = '/I' + env['INCSUFFIX'] = '' +# env.Append(OBJEMITTER = [static_object_emitter]) +# env.Append(SHOBJEMITTER = [shared_object_emitter]) + env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1 + + env['RC'] = 'rc' + env['RCFLAGS'] = SCons.Util.CLVar('') + env['RCSUFFIXES']=['.rc','.rc2'] + env['RCCOM'] = '$RC $_CPPDEFFLAGS $_CPPINCFLAGS $RCFLAGS /fo$TARGET $SOURCES' + env['BUILDERS']['RES'] = res_builder + env['OBJPREFIX'] = '' + env['OBJSUFFIX'] = '.obj' + env['SHOBJPREFIX'] = '$OBJPREFIX' + env['SHOBJSUFFIX'] = '$OBJSUFFIX' + + # Set-up ms tools paths + msvc_setup_env_once(env) + + env['CFILESUFFIX'] = '.c' + env['CXXFILESUFFIX'] = '.cc' + + env['PCHPDBFLAGS'] = SCons.Util.CLVar(['${(PDB and "/Yd") or ""}']) + env['PCHCOM'] = '$CXX /Fo${TARGETS[1]} $CXXFLAGS $CCFLAGS $CPPFLAGS $_CPPDEFFLAGS $_CPPINCFLAGS /c $SOURCES /Yc$PCHSTOP /Fp${TARGETS[0]} $CCPDBFLAGS $PCHPDBFLAGS' + env['BUILDERS']['PCH'] = pch_builder + + if 'ENV' not in env: + env['ENV'] = {} + if 'SystemRoot' not in env['ENV']: # required for dlls in the winsxs folders + env['ENV']['SystemRoot'] = SCons.Platform.win32.get_system_root() + +def exists(env): + return msvc_exists() + +# Local Variables: +# tab-width:4 +# indent-tabs-mode:nil +# End: +# vim: set expandtab tabstop=4 shiftwidth=4: |