| # -*- mode:python -*- |
| |
| # Copyright (c) 2018, 2020 ARM Limited |
| # |
| # The license below extends only to copyright in the software and shall |
| # not be construed as granting a license to any other intellectual |
| # property including but not limited to intellectual property relating |
| # to a hardware implementation of the functionality of the software |
| # licensed hereunder. You may use the software subject to the license |
| # terms below provided that you ensure that this notice is replicated |
| # unmodified and in its entirety in all distributions of the software, |
| # modified or unmodified, in source code or in binary form. |
| # |
| # Copyright (c) 2004-2005 The Regents of The University of Michigan |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer; |
| # redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution; |
| # neither the name of the copyright holders nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| import collections |
| import distutils.spawn |
| import itertools |
| import os |
| import os.path |
| import re |
| import sys |
| |
| import SCons |
| |
| from gem5_scons import Transform, warning, error, ToValue, FromValue |
| from gem5_scons.sources import * |
| |
| Export(SourceFilter.factories) |
| |
| # This file defines how to build a particular configuration of gem5 |
| # based on variable settings in the 'env' build environment. |
| |
| Import('*') |
| |
| # Children need to see the environment |
| Export('env') |
| |
| build_env = [(opt, env[opt]) for opt in export_vars] |
| |
| from code_formatter import code_formatter |
| |
| def GdbXml(xml_id, symbol, tags=None, add_tags=None): |
| cc, hh = env.Blob(symbol, xml_id) |
| Source(cc, tags=tags, add_tags=add_tags) |
| |
| class Source(SourceFile): |
| pass |
| |
| build_tools = Dir('#build_tools') |
| |
| # Build a small helper that runs Python code using the same version of Python |
| # as gem5. This is in an unorthodox location to avoid building it for every |
| # variant. |
| gem5py_env = gem5py_env.Clone() |
| gem5py = gem5py_env.File('gem5py') |
| gem5py_m5 = gem5py_env.File('gem5py_m5') |
| gem5py_env['GEM5PY'] = gem5py |
| gem5py_env['GEM5PY_M5'] = gem5py_m5 |
| gem5py_env['OBJSUFFIX'] = '.pyo' |
| # Inject build_tools into PYTHONPATH for when we run gem5py. |
| pythonpath = gem5py_env['ENV'].get('PYTHONPATH', '').split(':') |
| pythonpath.append(build_tools.abspath) |
| gem5py_env['ENV']['PYTHONPATH'] = ':'.join(pythonpath) |
| |
| class PySource(SourceFile): |
| '''Add a python source file to the named package''' |
| def __init__(self, package, source, tags=None, add_tags=None): |
| '''specify the python package, the source file, and any tags''' |
| super().__init__(source, tags, add_tags) |
| |
| basename = os.path.basename(self.filename) |
| modname, ext = os.path.splitext(basename) |
| assert ext == '.py' |
| |
| if package: |
| modpath = package.split('.') |
| else: |
| modpath = [] |
| |
| if modname != '__init__': |
| modpath += [ modname ] |
| modpath = '.'.join(modpath) |
| |
| abspath = self.snode.abspath |
| if not os.path.exists(abspath): |
| abspath = self.tnode.abspath |
| |
| self.modpath = modpath |
| |
| cpp = File(self.filename + '.cc') |
| |
| overrides = { |
| 'PYSOURCE_MODPATH': modpath, |
| 'PYSOURCE_ABSPATH': abspath, |
| 'PYSOURCE': File(source), |
| 'MARSHAL_PY': build_tools.File('marshal.py') |
| } |
| gem5py_env.Command(cpp, |
| [ '${PYSOURCE}', '${GEM5PY}', '${MARSHAL_PY}' ], |
| MakeAction('"${GEM5PY}" "${MARSHAL_PY}" "${TARGET}" ' \ |
| '"${PYSOURCE}" "${PYSOURCE_MODPATH}" ' \ |
| '"${PYSOURCE_ABSPATH}"', |
| Transform("EMBED PY", max_sources=1)), |
| **overrides) |
| Source(cpp, tags=self.tags, add_tags=['python', 'm5_module']) |
| |
| class SimObject(PySource): |
| '''Add a SimObject python file as a python source object and add |
| it to a list of sim object modules''' |
| |
| def __init__(self, source, *, sim_objects=None, enums=None, |
| tags=None, add_tags=None): |
| '''Specify the source file and any tags (automatically in |
| the m5.objects package)''' |
| if sim_objects is None: |
| if enums is None: |
| error(f"SimObject({source}...) must list c++ sim_objects or " |
| "enums (set either to [] if there are none).") |
| sim_objects = [] |
| if enums is None: |
| enums = [] |
| |
| super().__init__('m5.objects', source, tags, add_tags) |
| |
| build_dir = Dir(env['BUILDDIR']) |
| module = self.modpath |
| |
| # Generate all of the SimObject param C++ files. |
| for simobj in sim_objects: |
| # Some helper functions |
| srcs = [ Value(module), Value(simobj), |
| "${GEM5PY_M5}", "${PYSCRIPT}" ] |
| def cmdline(*args): |
| all_args = [ 'GEM5PY_M5', 'PYSCRIPT', 'MODULE' ] + list(args) |
| return ' '.join(list('"${%s}"' % arg for arg in all_args)) |
| |
| # Params header. |
| gem5py_env.Command([ "${PARAMS_HH}" ], srcs, |
| MakeAction(cmdline('PARAMS_HH'), Transform("SO Param", 2)), |
| MODULE=module, |
| SIMOBJ=simobj, |
| PYSCRIPT=build_tools.File('sim_object_param_struct_hh.py'), |
| PARAMS_HH=build_dir.File(f'params/{simobj}.hh')) |
| |
| # Params cc. |
| cc_file = build_dir.File(f'python/_m5/param_{simobj}.cc') |
| gem5py_env.Command([ "${PARAMS_CC}" ], srcs, |
| MakeAction(cmdline('PARAMS_CC', 'USE_PYTHON'), |
| Transform("SO Param", 2)), |
| PYSCRIPT=build_tools.File('sim_object_param_struct_cc.py'), |
| MODULE=module, |
| SIMOBJ=simobj, |
| PARAMS_CC=cc_file, |
| USE_PYTHON=env['USE_PYTHON']) |
| Source(cc_file, tags=self.tags, add_tags='python') |
| |
| # CXX config header. |
| gem5py_env.Command([ "${CXXCONFIG_HH}" ], srcs, |
| MakeAction(cmdline('CXXCONFIG_HH'), |
| Transform("CXXCPRHH", 2)), |
| PYSCRIPT=build_tools.File('cxx_config_hh.py'), |
| MODULE=module, |
| CXXCONFIG_HH=build_dir.File(f'cxx_config/{simobj}.hh')) |
| |
| # CXX config cc. |
| cc_file=build_dir.File(f'cxx_config/{simobj}.cc') |
| gem5py_env.Command([ "${CXXCONFIG_CC}" ], srcs, |
| MakeAction(cmdline('CXXCONFIG_CC'), |
| Transform("CXXCPRCC", 2)), |
| PYSCRIPT=build_tools.File('cxx_config_cc.py'), |
| MODULE=module, |
| CXXCONFIG_CC=cc_file) |
| if GetOption('with_cxx_config'): |
| Source(cc_file, tags=self.tags) |
| |
| # C++ versions of enum params. |
| for enum in enums: |
| gem5py_env.Command([ "${ENUM_HH}" ], |
| [ Value(module), Value(enum), |
| "${GEM5PY_M5}", "${ENUMHH_PY}" ], |
| MakeAction('"${GEM5PY_M5}" "${ENUMHH_PY}" "${MODULE}" ' \ |
| '"${ENUM_HH}"', |
| Transform("ENUMDECL", 2)), |
| MODULE=module, |
| ENUM=enum, |
| ENUM_HH=build_dir.File(f'enums/{enum}.hh'), |
| ENUMHH_PY=build_tools.File('enum_hh.py')) |
| cc_file = build_dir.File(f'enums/{enum}.cc') |
| gem5py_env.Command([ "${ENUM_CC}" ], |
| [ Value(module), Value(enum), |
| "${GEM5PY_M5}", "${ENUMCC_PY}" ], |
| MakeAction('"${GEM5PY_M5}" "${ENUMCC_PY}" "${MODULE}" ' \ |
| '"${ENUM_CC}" "${USE_PYTHON}"', |
| Transform("ENUM STR", 2)), |
| MODULE=module, |
| ENUM=enum, |
| ENUM_CC=cc_file, |
| ENUMCC_PY=build_tools.File('enum_cc.py'), |
| USE_PYTHON='--use-python' if env['USE_PYTHON'] else '') |
| Source(cc_file, tags=self.tags, add_tags='python') |
| |
| # This regular expression is simplistic and assumes that the import takes up |
| # the entire line, doesn't have the keyword "public", uses double quotes, has |
| # no whitespace at the end before or after the ;, and is all on one line. This |
| # should still cover most cases, and a completely accurate scanner would be |
| # MUCH more complex. |
| protoc_import_re = re.compile(r'^import\s+\"(.*\.proto)\"\;$', re.M) |
| |
| def protoc_scanner(node, env, path): |
| deps = [] |
| for imp in protoc_import_re.findall(node.get_text_contents()): |
| deps.append(Dir(env['BUILDDIR']).File(imp)) |
| return deps |
| |
| env.Append(SCANNERS=Scanner(function=protoc_scanner, skeys=['.proto'])) |
| |
| def protoc_emitter(target, source, env): |
| root, ext = os.path.splitext(source[0].get_abspath()) |
| return [root + '.pb.cc', root + '.pb.h'], source |
| |
| protoc_action = MakeAction('${PROTOC} --cpp_out ${BUILDDIR} ' |
| '--proto_path ${BUILDDIR} ${SOURCE.get_abspath()}', |
| Transform("PROTOC")) |
| protobuf_builder = Builder(action=protoc_action, emitter=protoc_emitter, |
| src_suffix='.proto') |
| env.Append(BUILDERS={'ProtoBufCC' : protobuf_builder}) |
| |
| c_file, cxx_file = SCons.Tool.createCFileBuilders(env) |
| cxx_file.add_action('.proto', protoc_action) |
| cxx_file.add_emitter('.proto', protoc_emitter) |
| |
| def ProtoBuf(source, tags=None, add_tags=None): |
| '''Add a Protocol Buffer to build''' |
| |
| if not env['HAVE_PROTOC'] or not env['HAVE_PROTOBUF']: |
| error('Got protobuf to build, but lacks support!') |
| |
| '''Specify the source file, and any tags''' |
| Source(source, tags, add_tags, append={'CXXFLAGS': '-Wno-array-bounds'}) |
| |
| env['PROTOC_GRPC'] = distutils.spawn.find_executable('grpc_cpp_plugin') |
| if env['PROTOC_GRPC']: |
| env.Append(LIBS=['grpc++']) |
| |
| def protoc_grpc_emitter(target, source, env): |
| root, ext = os.path.splitext(source[0].get_abspath()) |
| return [root + '.grpc.pb.cc', root + '.grpc.pb.h'], source |
| |
| protoc_grpc_action=MakeAction('${PROTOC} --grpc_out ${BUILDDIR} ' |
| '--plugin=protoc-gen-grpc=${PROTOC_GRPC} --proto_path ${BUILDDIR} ' |
| '${SOURCE.get_abspath()}', |
| Transform("PROTOC")) |
| |
| env.Append(BUILDERS={'GrpcProtoBufCC' : Builder( |
| action=protoc_grpc_action, |
| emitter=protoc_grpc_emitter |
| )}) |
| |
| def GrpcProtoBuf(source, tags=None, add_tags=None): |
| '''Add a GRPC protocol buffer to the build''' |
| |
| if not env['PROTOC_GRPC']: |
| error('No grpc_cpp_plugin found') |
| |
| Source(env.GrpcProtoBufCC(source=source)[0], tags=tags, add_tags=add_tags) |
| Source(env.ProtoBufCC(source=source)[0], tags=tags, add_tags=add_tags) |
| |
| |
| |
| date_source = File('base/date.cc') |
| |
| class TopLevelMeta(type): |
| '''Meta class for top level build products, ie binaries and libraries.''' |
| all = [] |
| |
| def __init__(cls, name, bases, d): |
| TopLevelMeta.all.append(cls) |
| super().__init__(name, bases, d) |
| cls.all = [] |
| |
| class TopLevelBase(object, metaclass=TopLevelMeta): |
| '''Base class for linked build products.''' |
| |
| def __init__(self, target, *srcs_and_filts): |
| '''Specify the target name and any sources. Sources that are |
| not SourceFiles are evalued with Source().''' |
| super().__init__() |
| self.all.append(self) |
| self.target = target |
| |
| isFilter = lambda arg: isinstance(arg, SourceFilter) |
| self.filters = filter(isFilter, srcs_and_filts) |
| sources = filter(lambda a: not isFilter(a), srcs_and_filts) |
| |
| srcs = SourceList() |
| for src in sources: |
| if not isinstance(src, SourceFile): |
| src = Source(src, tags=[]) |
| srcs.append(src) |
| self.srcs = srcs |
| |
| self.dir = Dir('.') |
| |
| def sources(self, env): |
| srcs = self.srcs |
| for f in self.filters: |
| srcs += Source.all.apply_filter(env, f) |
| return srcs |
| |
| def srcs_to_objs(self, env, sources): |
| return list([ s.static(env) for s in sources ]) |
| |
| @classmethod |
| def declare_all(cls, env): |
| return list([ instance.declare(env) for instance in cls.all ]) |
| |
| class StaticLib(TopLevelBase): |
| '''Base class for creating a static library from sources.''' |
| |
| def declare(self, env): |
| objs = self.srcs_to_objs(env, self.sources(env)) |
| |
| date_obj = env.StaticObject(date_source) |
| env.Depends(date_obj, objs) |
| |
| return env.StaticLibrary(self.target, [date_obj, objs])[0] |
| |
| class SharedLib(TopLevelBase): |
| '''Base class for creating a shared library from sources.''' |
| |
| def srcs_to_objs(self, env, sources): |
| return list([ s.shared(env) for s in sources ]) |
| |
| def declare(self, env): |
| objs = self.srcs_to_objs(env, self.sources(env)) |
| |
| date_obj = env.SharedObject(date_source) |
| env.Depends(date_obj, objs) |
| |
| return env.SharedLibrary(self.target, [date_obj, objs])[0] |
| |
| class Executable(TopLevelBase): |
| '''Base class for creating an executable from sources.''' |
| |
| def path(self, env): |
| return self.dir.File(self.target + '.${ENV_LABEL}') |
| |
| def declare(self, env, objs=None): |
| if objs is None: |
| objs = self.srcs_to_objs(env, self.sources(env)) |
| |
| env = env.Clone() |
| env['BIN_RPATH_PREFIX'] = os.path.relpath( |
| env['BUILDDIR'], self.path(env).dir.abspath) |
| |
| executable = env.Program(self.path(env).abspath, objs)[0] |
| |
| if sys.platform == 'sunos5': |
| cmd = 'cp $SOURCE $TARGET; strip $TARGET' |
| else: |
| cmd = 'strip $SOURCE -o $TARGET' |
| stripped = env.Command(str(executable) + '.stripped', |
| executable, MakeAction(cmd, Transform("STRIP")))[0] |
| |
| return [executable, stripped] |
| |
| class Gem5(Executable): |
| '''Base class for the main gem5 executable.''' |
| |
| def declare(self, env): |
| objs = self.srcs_to_objs(env, self.sources(env)) |
| |
| date_obj = env.StaticObject(date_source) |
| env.Depends(date_obj, objs) |
| objs.append(date_obj) |
| |
| return super().declare(env, objs) |
| |
| |
| class GTest(Executable): |
| '''Create a unit test based on the google test framework.''' |
| all = [] |
| def __init__(self, *srcs_and_filts, **kwargs): |
| if not kwargs.pop('skip_lib', False): |
| srcs_and_filts = srcs_and_filts + (with_tag('gtest lib'),) |
| super().__init__(*srcs_and_filts) |
| |
| @classmethod |
| def declare_all(cls, env): |
| env = env.Clone() |
| env['OBJSUFFIX'] = '.t' + env['OBJSUFFIX'][1:] |
| env['SHOBJSUFFIX'] = '.t' + env['SHOBJSUFFIX'][1:] |
| env.Append(LIBS=env['GTEST_LIBS']) |
| env.Append(CPPFLAGS=env['GTEST_CPPFLAGS']) |
| env['GTEST_OUT_DIR'] = \ |
| Dir(env['BUILDDIR']).Dir('unittests.${ENV_LABEL}') |
| return super().declare_all(env) |
| |
| def declare(self, env): |
| binary, stripped = super().declare(env) |
| |
| out_dir = env['GTEST_OUT_DIR'] |
| xml_file = out_dir.Dir(str(self.dir)).File(self.target + '.xml') |
| AlwaysBuild(env.Command(xml_file.abspath, binary, |
| "${SOURCES[0]} --gtest_output=xml:${TARGETS[0]}")) |
| |
| return binary |
| |
| |
| # Children should have access |
| Export('GdbXml') |
| Export('Source') |
| Export('PySource') |
| Export('SimObject') |
| Export('ProtoBuf') |
| Export('GrpcProtoBuf') |
| Export('Executable') |
| Export('GTest') |
| |
| ######################################################################## |
| # |
| # Debug Flags |
| # |
| |
| debug_flags = set() |
| def DebugFlagCommon(name, flags, desc, fmt, tags, add_tags): |
| if name == "All": |
| raise AttributeError('The "All" flag name is reserved') |
| if name in debug_flags: |
| raise AttributeError(f'Flag {name} already specified') |
| |
| debug_flags.add(name) |
| |
| hh_file = Dir(env['BUILDDIR']).Dir('debug').File(f'{name}.hh') |
| gem5py_env.Command(hh_file, |
| [ '${GEM5PY}', '${DEBUGFLAGHH_PY}' ], |
| MakeAction('"${GEM5PY}" "${DEBUGFLAGHH_PY}" "${TARGET}" "${NAME}" ' \ |
| '"${DESC}" "${FMT}" "${COMPONENTS}"', |
| Transform("TRACING", 0)), |
| DEBUGFLAGHH_PY=build_tools.File('debugflaghh.py'), |
| NAME=name, DESC=desc, FMT=('True' if fmt else 'False'), |
| COMPONENTS=':'.join(flags)) |
| cc_file = Dir(env['BUILDDIR']).Dir('debug').File('%s.cc' % name) |
| gem5py_env.Command(cc_file, |
| [ "${GEM5PY}", "${DEBUGFLAGCC_PY}" ], |
| MakeAction('"${GEM5PY}" "${DEBUGFLAGCC_PY}" "${TARGET}" "${NAME}"', |
| Transform("TRACING", 0)), |
| DEBUGFLAGCC_PY=build_tools.File('debugflagcc.py'), NAME=name) |
| if not add_tags: |
| add_tags = set() |
| if isinstance(add_tags, str): |
| add_tags = { add_tags } |
| if not isinstance(add_tags, set): |
| add_tags = set(add_tags) |
| add_tags.add('gem5 trace') |
| Source(cc_file, tags=tags, add_tags=add_tags) |
| |
| def DebugFlag(name, desc=None, fmt=False, tags=None, add_tags=None): |
| DebugFlagCommon(name, (), desc, fmt, tags=tags, add_tags=add_tags) |
| def CompoundFlag(name, flags, desc=None, tags=None, add_tags=None): |
| DebugFlagCommon(name, flags, desc, False, tags=tags, add_tags=add_tags) |
| def DebugFormatFlag(name, desc=None, tags=None, add_tags=None): |
| DebugFlag(name, desc, True, tags=tags, add_tags=add_tags) |
| |
| Export('DebugFlag') |
| Export('CompoundFlag') |
| Export('DebugFormatFlag') |
| |
| ######################################################################## |
| # |
| # Set some compiler variables |
| # |
| |
| # Include file paths are rooted in this directory. SCons will |
| # automatically expand '.' to refer to both the source directory and |
| # the corresponding build directory to pick up generated include |
| # files. |
| env.Append(CPPPATH=Dir('.')) |
| |
| for extra_dir in extras_dir_list: |
| env.Append(CPPPATH=Dir(extra_dir)) |
| |
| ######################################################################## |
| # |
| # Walk the tree and execute all SConscripts in subdirectories |
| # |
| |
| here = Dir('.').srcnode().abspath |
| for root, dirs, files in os.walk(base_dir, topdown=True): |
| if root == here: |
| # we don't want to recurse back into this SConscript |
| continue |
| |
| if 'SConscript' in files: |
| build_dir = os.path.join(env['BUILDDIR'], root[len(base_dir) + 1:]) |
| SConscript(os.path.join(root, 'SConscript'), variant_dir=build_dir) |
| |
| for extra_dir in extras_dir_list: |
| prefix_len = len(os.path.dirname(extra_dir)) + 1 |
| |
| # Also add the corresponding build directory to pick up generated |
| # include files. |
| env.Append(CPPPATH=Dir(env['BUILDDIR']).Dir(extra_dir[prefix_len:])) |
| |
| for root, dirs, files in os.walk(extra_dir, topdown=True): |
| # if build lives in the extras directory, don't walk down it |
| if 'build' in dirs: |
| dirs.remove('build') |
| |
| if 'SConscript' in files: |
| build_dir = os.path.join(env['BUILDDIR'], root[prefix_len:]) |
| SConscript(os.path.join(root, 'SConscript'), variant_dir=build_dir) |
| |
| for opt in export_vars: |
| env.ConfigFile(opt) |
| |
| def makeTheISA(source, target, env): |
| isas = sorted(set(env.Split('${ALL_ISAS}'))) |
| target_isa = env['TARGET_ISA'] |
| is_null_isa = '1' if (target_isa.lower() == 'null') else '0' |
| |
| def namespace(isa): |
| return isa[0].upper() + isa[1:].lower() + 'ISA' |
| |
| |
| code = code_formatter() |
| code('''\ |
| #ifndef __CONFIG_THE_ISA_HH__ |
| #define __CONFIG_THE_ISA_HH__ |
| |
| #define IS_NULL_ISA ${{is_null_isa}} |
| #define TheISA ${{namespace(target_isa)}} |
| |
| #endif // __CONFIG_THE_ISA_HH__''') |
| |
| code.write(str(target[0])) |
| |
| env.Command('config/the_isa.hh', [], |
| MakeAction(makeTheISA, Transform("CFG ISA", 0))) |
| |
| def makeTheGPUISA(source, target, env): |
| gpu_isa = env['TARGET_GPU_ISA'] |
| |
| namespace = gpu_isa[0].upper() + gpu_isa[1:].lower() + 'ISA' |
| |
| code = code_formatter() |
| code('''\ |
| #ifndef TheGpuISA |
| #define TheGpuISA ${namespace} |
| #endif // TheGpuISA''') |
| |
| code.write(str(target[0])) |
| |
| env.Command('config/the_gpu_isa.hh', [], |
| MakeAction(makeTheGPUISA, Transform("CFG ISA", 0))) |
| |
| |
| ######################################################################## |
| # |
| # Commands for the basic automatically generated python files |
| # |
| |
| # Generate Python file containing a dict specifying the current |
| # buildEnv flags. |
| def makeDefinesPyFile(target, source, env): |
| code = code_formatter() |
| code("buildEnv = $0", FromValue(source[0])) |
| code.write(target[0].abspath) |
| |
| # Generate a file with all of the compile options in it |
| env.Command('python/m5/defines.py', ToValue(dict(build_env)), |
| MakeAction(makeDefinesPyFile, Transform("DEFINES", 0))) |
| PySource('m5', 'python/m5/defines.py') |
| |
| # Generate a file that wraps the basic top level files |
| gem5py_env.Command('python/m5/info.py', |
| [ File('#/COPYING'), File('#/LICENSE'), File('#/README'), |
| "${GEM5PY}", "${INFOPY_PY}" ], |
| MakeAction('"${GEM5PY}" "${INFOPY_PY}" "${TARGET}" ' |
| '${SOURCES[:-2]}', |
| Transform("INFO", 3)), |
| INFOPY_PY=build_tools.File('infopy.py')) |
| PySource('m5', 'python/m5/info.py') |
| |
| gem5py_m5_env = gem5py_env.Clone() |
| gem5py_env.Append(CPPPATH=env['CPPPATH']) |
| gem5py_env.Append(LIBS='z') |
| gem5py_env.Program(gem5py, 'python/gem5py.cc')[0] |
| m5_module_source = \ |
| Source.all.with_all_tags(env, 'm5_module', 'gem5 lib') |
| m5_module_static = list(map(lambda s: s.static(gem5py_env), m5_module_source)) |
| gem5py_env.Program(gem5py_m5, [ 'python/gem5py.cc' ] + m5_module_static) |
| |
| |
| # version tags |
| tags = \ |
| env.Command('sim/tags.cc', None, |
| MakeAction('util/cpt_upgrader.py --get-cc-file > $TARGET', |
| Transform("VER TAGS"))) |
| env.AlwaysBuild(tags) |
| |
| ######################################################################## |
| # |
| # Define binaries. Each different build type (debug, opt, etc.) gets |
| # a slightly different build environment. |
| # |
| |
| env['SHOBJSUFFIX'] = '${OBJSUFFIX}s' |
| |
| envs = { |
| 'debug': env.Clone(ENV_LABEL='debug', OBJSUFFIX='.do'), |
| 'opt': env.Clone(ENV_LABEL='opt', OBJSUFFIX='.o'), |
| 'fast': env.Clone(ENV_LABEL='fast', OBJSUFFIX='.fo'), |
| } |
| |
| envs['debug'].Append(CPPDEFINES=['DEBUG', 'TRACING_ON=1']) |
| envs['opt'].Append(CCFLAGS=['-g'], CPPDEFINES=['TRACING_ON=1']) |
| envs['fast'].Append(CPPDEFINES=['NDEBUG', 'TRACING_ON=0']) |
| |
| # For Link Time Optimization, the optimisation flags used to compile |
| # individual files are decoupled from those used at link time |
| # (i.e. you can compile with -O3 and perform LTO with -O0), so we need |
| # to also update the linker flags based on the target. |
| if env['GCC']: |
| if sys.platform == 'sunos5': |
| envs['debug'].Append(CCFLAGS=['-gstabs+']) |
| else: |
| envs['debug'].Append(CCFLAGS=['-ggdb3']) |
| envs['debug'].Append(LINKFLAGS=['-O0']) |
| # opt and fast share the same cc flags, also add the optimization to the |
| # linkflags as LTO defers the optimization to link time |
| for target in ['opt', 'fast']: |
| envs[target].Append(CCFLAGS=['-O3', '${LTO_CCFLAGS}']) |
| envs[target].Append(LINKFLAGS=['-O3', '${LTO_LINKFLAGS}']) |
| |
| elif env['CLANG']: |
| envs['debug'].Append(CCFLAGS=['-g', '-O0']) |
| # opt and fast share the same cc flags |
| for target in ['opt', 'fast']: |
| envs[target].Append(CCFLAGS=['-O3']) |
| else: |
| error('Unknown compiler, please fix compiler options') |
| |
| |
| # To speed things up, we only instantiate the build environments we need. We |
| # try to identify the needed environment for each target; if we can't, we fall |
| # back on instantiating all the environments just to be safe. |
| |
| # A set of all the extensions on targets. |
| target_exts = set({ os.path.splitext(t)[1] for t in BUILD_TARGETS }) |
| needed_envs = set() |
| for ext in target_exts: |
| match = next((e for e in envs.values() if ext in ( |
| '.' + e['ENV_LABEL'], e['OBJSUFFIX'])), None) |
| if match: |
| needed_envs.add(match['ENV_LABEL']) |
| else: |
| needed_envs |= set(envs.keys()) |
| break |
| |
| |
| # SCons doesn't know to append a library suffix when there is a '.' in the |
| # name. Use '_' instead. |
| lib_name = 'gem5_${ENV_LABEL}' |
| |
| lib_filter = with_tag('gem5 lib') |
| |
| # Without Python, leave out all Python content from the library builds. The |
| # option doesn't affect gem5 built as a program. |
| if GetOption('without_python'): |
| lib_filter = lib_filter & without_tag('python') |
| |
| StaticLib(lib_name, lib_filter) |
| SharedLib(lib_name, lib_filter) |
| |
| Gem5('gem5', with_any_tags('gem5 lib', 'main')) |
| |
| |
| # Function to create a new build environment as clone of current |
| # environment 'env' with modified object suffix and optional stripped |
| # binary. |
| for env in (envs[e] for e in needed_envs): |
| for cls in TopLevelMeta.all: |
| cls.declare_all(env) |
