| # -*- mode:python -*- |
| |
| # 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. |
| # |
| # Authors: Nathan Binkert |
| |
| import array |
| import bisect |
| import imp |
| import marshal |
| import os |
| import re |
| import subprocess |
| import sys |
| import zlib |
| |
| from os.path import basename, dirname, exists, isdir, isfile, join as joinpath |
| |
| import SCons |
| |
| # 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 m5.util import code_formatter, compareVersions |
| |
| ######################################################################## |
| # Code for adding source files of various types |
| # |
| # When specifying a source file of some type, a set of guards can be |
| # specified for that file. When get() is used to find the files, if |
| # get specifies a set of filters, only files that match those filters |
| # will be accepted (unspecified filters on files are assumed to be |
| # false). Current filters are: |
| # main -- specifies the gem5 main() function |
| # skip_lib -- do not put this file into the gem5 library |
| # skip_no_python -- do not put this file into a no_python library |
| # as it embeds compiled Python |
| # <unittest> -- unit tests use filters based on the unit test name |
| # |
| # A parent can now be specified for a source file and default filter |
| # values will be retrieved recursively from parents (children override |
| # parents). |
| # |
| def guarded_source_iterator(sources, **guards): |
| '''Iterate over a set of sources, gated by a set of guards.''' |
| for src in sources: |
| for flag,value in guards.iteritems(): |
| # if the flag is found and has a different value, skip |
| # this file |
| if src.all_guards.get(flag, False) != value: |
| break |
| else: |
| yield src |
| |
| class SourceMeta(type): |
| '''Meta class for source files that keeps track of all files of a |
| particular type and has a get function for finding all functions |
| of a certain type that match a set of guards''' |
| def __init__(cls, name, bases, dict): |
| super(SourceMeta, cls).__init__(name, bases, dict) |
| cls.all = [] |
| |
| def get(cls, **guards): |
| '''Find all files that match the specified guards. If a source |
| file does not specify a flag, the default is False''' |
| for s in guarded_source_iterator(cls.all, **guards): |
| yield s |
| |
| class SourceFile(object): |
| '''Base object that encapsulates the notion of a source file. |
| This includes, the source node, target node, various manipulations |
| of those. A source file also specifies a set of guards which |
| describing which builds the source file applies to. A parent can |
| also be specified to get default guards from''' |
| __metaclass__ = SourceMeta |
| def __init__(self, source, parent=None, **guards): |
| self.guards = guards |
| self.parent = parent |
| |
| tnode = source |
| if not isinstance(source, SCons.Node.FS.File): |
| tnode = File(source) |
| |
| self.tnode = tnode |
| self.snode = tnode.srcnode() |
| |
| for base in type(self).__mro__: |
| if issubclass(base, SourceFile): |
| base.all.append(self) |
| |
| @property |
| def filename(self): |
| return str(self.tnode) |
| |
| @property |
| def dirname(self): |
| return dirname(self.filename) |
| |
| @property |
| def basename(self): |
| return basename(self.filename) |
| |
| @property |
| def extname(self): |
| index = self.basename.rfind('.') |
| if index <= 0: |
| # dot files aren't extensions |
| return self.basename, None |
| |
| return self.basename[:index], self.basename[index+1:] |
| |
| @property |
| def all_guards(self): |
| '''find all guards for this object getting default values |
| recursively from its parents''' |
| guards = {} |
| if self.parent: |
| guards.update(self.parent.guards) |
| guards.update(self.guards) |
| return guards |
| |
| def __lt__(self, other): return self.filename < other.filename |
| def __le__(self, other): return self.filename <= other.filename |
| def __gt__(self, other): return self.filename > other.filename |
| def __ge__(self, other): return self.filename >= other.filename |
| def __eq__(self, other): return self.filename == other.filename |
| def __ne__(self, other): return self.filename != other.filename |
| |
| @staticmethod |
| def done(): |
| def disabled(cls, name, *ignored): |
| raise RuntimeError("Additional SourceFile '%s'" % name,\ |
| "declared, but targets deps are already fixed.") |
| SourceFile.__init__ = disabled |
| |
| |
| class Source(SourceFile): |
| current_group = None |
| source_groups = { None : [] } |
| |
| @classmethod |
| def set_group(cls, group): |
| if not group in Source.source_groups: |
| Source.source_groups[group] = [] |
| Source.current_group = group |
| |
| '''Add a c/c++ source file to the build''' |
| def __init__(self, source, Werror=True, **guards): |
| '''specify the source file, and any guards''' |
| super(Source, self).__init__(source, **guards) |
| |
| self.Werror = Werror |
| |
| Source.source_groups[Source.current_group].append(self) |
| |
| class PySource(SourceFile): |
| '''Add a python source file to the named package''' |
| invalid_sym_char = re.compile('[^A-z0-9_]') |
| modules = {} |
| tnodes = {} |
| symnames = {} |
| |
| def __init__(self, package, source, **guards): |
| '''specify the python package, the source file, and any guards''' |
| super(PySource, self).__init__(source, **guards) |
| |
| modname,ext = self.extname |
| assert ext == 'py' |
| |
| if package: |
| path = package.split('.') |
| else: |
| path = [] |
| |
| modpath = path[:] |
| if modname != '__init__': |
| modpath += [ modname ] |
| modpath = '.'.join(modpath) |
| |
| arcpath = path + [ self.basename ] |
| abspath = self.snode.abspath |
| if not exists(abspath): |
| abspath = self.tnode.abspath |
| |
| self.package = package |
| self.modname = modname |
| self.modpath = modpath |
| self.arcname = joinpath(*arcpath) |
| self.abspath = abspath |
| self.compiled = File(self.filename + 'c') |
| self.cpp = File(self.filename + '.cc') |
| self.symname = PySource.invalid_sym_char.sub('_', modpath) |
| |
| PySource.modules[modpath] = self |
| PySource.tnodes[self.tnode] = self |
| PySource.symnames[self.symname] = self |
| |
| class SimObject(PySource): |
| '''Add a SimObject python file as a python source object and add |
| it to a list of sim object modules''' |
| |
| fixed = False |
| modnames = [] |
| |
| def __init__(self, source, **guards): |
| '''Specify the source file and any guards (automatically in |
| the m5.objects package)''' |
| super(SimObject, self).__init__('m5.objects', source, **guards) |
| if self.fixed: |
| raise AttributeError, "Too late to call SimObject now." |
| |
| bisect.insort_right(SimObject.modnames, self.modname) |
| |
| class ProtoBuf(SourceFile): |
| '''Add a Protocol Buffer to build''' |
| |
| def __init__(self, source, **guards): |
| '''Specify the source file, and any guards''' |
| super(ProtoBuf, self).__init__(source, **guards) |
| |
| # Get the file name and the extension |
| modname,ext = self.extname |
| assert ext == 'proto' |
| |
| # Currently, we stick to generating the C++ headers, so we |
| # only need to track the source and header. |
| self.cc_file = File(modname + '.pb.cc') |
| self.hh_file = File(modname + '.pb.h') |
| |
| class UnitTest(object): |
| '''Create a UnitTest''' |
| |
| all = [] |
| def __init__(self, target, *sources, **kwargs): |
| '''Specify the target name and any sources. Sources that are |
| not SourceFiles are evalued with Source(). All files are |
| guarded with a guard of the same name as the UnitTest |
| target.''' |
| |
| srcs = [] |
| for src in sources: |
| if not isinstance(src, SourceFile): |
| src = Source(src, skip_lib=True) |
| src.guards[target] = True |
| srcs.append(src) |
| |
| self.sources = srcs |
| self.target = target |
| self.main = kwargs.get('main', False) |
| UnitTest.all.append(self) |
| |
| # Children should have access |
| Export('Source') |
| Export('PySource') |
| Export('SimObject') |
| Export('ProtoBuf') |
| Export('UnitTest') |
| |
| ######################################################################## |
| # |
| # Debug Flags |
| # |
| debug_flags = {} |
| def DebugFlag(name, desc=None): |
| if name in debug_flags: |
| raise AttributeError, "Flag %s already specified" % name |
| debug_flags[name] = (name, (), desc) |
| |
| def CompoundFlag(name, flags, desc=None): |
| if name in debug_flags: |
| raise AttributeError, "Flag %s already specified" % name |
| |
| compound = tuple(flags) |
| debug_flags[name] = (name, compound, desc) |
| |
| Export('DebugFlag') |
| Export('CompoundFlag') |
| |
| ######################################################################## |
| # |
| # 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)) |
| |
| # Workaround for bug in SCons version > 0.97d20071212 |
| # Scons bug id: 2006 gem5 Bug id: 308 |
| for root, dirs, files in os.walk(base_dir, topdown=True): |
| Dir(root[len(base_dir) + 1:]) |
| |
| ######################################################################## |
| # |
| # 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 = joinpath(env['BUILDDIR'], root[len(base_dir) + 1:]) |
| Source.set_group(build_dir) |
| SConscript(joinpath(root, 'SConscript'), variant_dir=build_dir) |
| |
| for extra_dir in extras_dir_list: |
| prefix_len = len(dirname(extra_dir)) + 1 |
| |
| # Also add the corresponding build directory to pick up generated |
| # include files. |
| env.Append(CPPPATH=Dir(joinpath(env['BUILDDIR'], 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 = joinpath(env['BUILDDIR'], root[prefix_len:]) |
| SConscript(joinpath(root, 'SConscript'), variant_dir=build_dir) |
| |
| for opt in export_vars: |
| env.ConfigFile(opt) |
| |
| def makeTheISA(source, target, env): |
| isas = [ src.get_contents() for src in source ] |
| target_isa = env['TARGET_ISA'] |
| def define(isa): |
| return isa.upper() + '_ISA' |
| |
| 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__ |
| |
| ''') |
| |
| # create defines for the preprocessing and compile-time determination |
| for i,isa in enumerate(isas): |
| code('#define $0 $1', define(isa), i + 1) |
| code() |
| |
| # create an enum for any run-time determination of the ISA, we |
| # reuse the same name as the namespaces |
| code('enum class Arch {') |
| for i,isa in enumerate(isas): |
| if i + 1 == len(isas): |
| code(' $0 = $1', namespace(isa), define(isa)) |
| else: |
| code(' $0 = $1,', namespace(isa), define(isa)) |
| code('};') |
| |
| code(''' |
| |
| #define THE_ISA ${{define(target_isa)}} |
| #define TheISA ${{namespace(target_isa)}} |
| #define THE_ISA_STR "${{target_isa}}" |
| |
| #endif // __CONFIG_THE_ISA_HH__''') |
| |
| code.write(str(target[0])) |
| |
| env.Command('config/the_isa.hh', map(Value, all_isa_list), |
| MakeAction(makeTheISA, Transform("CFG ISA", 0))) |
| |
| def makeTheGPUISA(source, target, env): |
| isas = [ src.get_contents() for src in source ] |
| target_gpu_isa = env['TARGET_GPU_ISA'] |
| def define(isa): |
| return isa.upper() + '_ISA' |
| |
| def namespace(isa): |
| return isa[0].upper() + isa[1:].lower() + 'ISA' |
| |
| |
| code = code_formatter() |
| code('''\ |
| #ifndef __CONFIG_THE_GPU_ISA_HH__ |
| #define __CONFIG_THE_GPU_ISA_HH__ |
| |
| ''') |
| |
| # create defines for the preprocessing and compile-time determination |
| for i,isa in enumerate(isas): |
| code('#define $0 $1', define(isa), i + 1) |
| code() |
| |
| # create an enum for any run-time determination of the ISA, we |
| # reuse the same name as the namespaces |
| code('enum class GPUArch {') |
| for i,isa in enumerate(isas): |
| if i + 1 == len(isas): |
| code(' $0 = $1', namespace(isa), define(isa)) |
| else: |
| code(' $0 = $1,', namespace(isa), define(isa)) |
| code('};') |
| |
| code(''' |
| |
| #define THE_GPU_ISA ${{define(target_gpu_isa)}} |
| #define TheGpuISA ${{namespace(target_gpu_isa)}} |
| #define THE_GPU_ISA_STR "${{target_gpu_isa}}" |
| |
| #endif // __CONFIG_THE_GPU_ISA_HH__''') |
| |
| code.write(str(target[0])) |
| |
| env.Command('config/the_gpu_isa.hh', map(Value, all_gpu_isa_list), |
| MakeAction(makeTheGPUISA, Transform("CFG ISA", 0))) |
| |
| ######################################################################## |
| # |
| # Prevent any SimObjects from being added after this point, they |
| # should all have been added in the SConscripts above |
| # |
| SimObject.fixed = True |
| |
| class DictImporter(object): |
| '''This importer takes a dictionary of arbitrary module names that |
| map to arbitrary filenames.''' |
| def __init__(self, modules): |
| self.modules = modules |
| self.installed = set() |
| |
| def __del__(self): |
| self.unload() |
| |
| def unload(self): |
| import sys |
| for module in self.installed: |
| del sys.modules[module] |
| self.installed = set() |
| |
| def find_module(self, fullname, path): |
| if fullname == 'm5.defines': |
| return self |
| |
| if fullname == 'm5.objects': |
| return self |
| |
| if fullname.startswith('_m5'): |
| return None |
| |
| source = self.modules.get(fullname, None) |
| if source is not None and fullname.startswith('m5.objects'): |
| return self |
| |
| return None |
| |
| def load_module(self, fullname): |
| mod = imp.new_module(fullname) |
| sys.modules[fullname] = mod |
| self.installed.add(fullname) |
| |
| mod.__loader__ = self |
| if fullname == 'm5.objects': |
| mod.__path__ = fullname.split('.') |
| return mod |
| |
| if fullname == 'm5.defines': |
| mod.__dict__['buildEnv'] = m5.util.SmartDict(build_env) |
| return mod |
| |
| source = self.modules[fullname] |
| if source.modname == '__init__': |
| mod.__path__ = source.modpath |
| mod.__file__ = source.abspath |
| |
| exec file(source.abspath, 'r') in mod.__dict__ |
| |
| return mod |
| |
| import m5.SimObject |
| import m5.params |
| from m5.util import code_formatter |
| |
| m5.SimObject.clear() |
| m5.params.clear() |
| |
| # install the python importer so we can grab stuff from the source |
| # tree itself. We can't have SimObjects added after this point or |
| # else we won't know about them for the rest of the stuff. |
| importer = DictImporter(PySource.modules) |
| sys.meta_path[0:0] = [ importer ] |
| |
| # import all sim objects so we can populate the all_objects list |
| # make sure that we're working with a list, then let's sort it |
| for modname in SimObject.modnames: |
| exec('from m5.objects import %s' % modname) |
| |
| # we need to unload all of the currently imported modules so that they |
| # will be re-imported the next time the sconscript is run |
| importer.unload() |
| sys.meta_path.remove(importer) |
| |
| sim_objects = m5.SimObject.allClasses |
| all_enums = m5.params.allEnums |
| |
| for name,obj in sorted(sim_objects.iteritems()): |
| for param in obj._params.local.values(): |
| # load the ptype attribute now because it depends on the |
| # current version of SimObject.allClasses, but when scons |
| # actually uses the value, all versions of |
| # SimObject.allClasses will have been loaded |
| param.ptype |
| |
| ######################################################################## |
| # |
| # calculate extra dependencies |
| # |
| module_depends = ["m5", "m5.SimObject", "m5.params"] |
| depends = [ PySource.modules[dep].snode for dep in module_depends ] |
| depends.sort(key = lambda x: x.name) |
| |
| ######################################################################## |
| # |
| # Commands for the basic automatically generated python files |
| # |
| |
| # Generate Python file containing a dict specifying the current |
| # buildEnv flags. |
| def makeDefinesPyFile(target, source, env): |
| build_env = source[0].get_contents() |
| |
| code = code_formatter() |
| code(""" |
| import _m5.core |
| import m5.util |
| |
| buildEnv = m5.util.SmartDict($build_env) |
| |
| compileDate = _m5.core.compileDate |
| _globals = globals() |
| for key,val in _m5.core.__dict__.iteritems(): |
| if key.startswith('flag_'): |
| flag = key[5:] |
| _globals[flag] = val |
| del _globals |
| """) |
| code.write(target[0].abspath) |
| |
| defines_info = Value(build_env) |
| # Generate a file with all of the compile options in it |
| env.Command('python/m5/defines.py', defines_info, |
| MakeAction(makeDefinesPyFile, Transform("DEFINES", 0))) |
| PySource('m5', 'python/m5/defines.py') |
| |
| # Generate python file containing info about the M5 source code |
| def makeInfoPyFile(target, source, env): |
| code = code_formatter() |
| for src in source: |
| data = ''.join(file(src.srcnode().abspath, 'r').xreadlines()) |
| code('$src = ${{repr(data)}}') |
| code.write(str(target[0])) |
| |
| # Generate a file that wraps the basic top level files |
| env.Command('python/m5/info.py', |
| [ '#/COPYING', '#/LICENSE', '#/README', ], |
| MakeAction(makeInfoPyFile, Transform("INFO"))) |
| PySource('m5', 'python/m5/info.py') |
| |
| ######################################################################## |
| # |
| # Create all of the SimObject param headers and enum headers |
| # |
| |
| def createSimObjectParamStruct(target, source, env): |
| assert len(target) == 1 and len(source) == 1 |
| |
| name = source[0].get_text_contents() |
| obj = sim_objects[name] |
| |
| code = code_formatter() |
| obj.cxx_param_decl(code) |
| code.write(target[0].abspath) |
| |
| def createSimObjectCxxConfig(is_header): |
| def body(target, source, env): |
| assert len(target) == 1 and len(source) == 1 |
| |
| name = str(source[0].get_contents()) |
| obj = sim_objects[name] |
| |
| code = code_formatter() |
| obj.cxx_config_param_file(code, is_header) |
| code.write(target[0].abspath) |
| return body |
| |
| def createEnumStrings(target, source, env): |
| assert len(target) == 1 and len(source) == 2 |
| |
| name = source[0].get_text_contents() |
| use_python = source[1].read() |
| obj = all_enums[name] |
| |
| code = code_formatter() |
| obj.cxx_def(code) |
| if use_python: |
| obj.pybind_def(code) |
| code.write(target[0].abspath) |
| |
| def createEnumDecls(target, source, env): |
| assert len(target) == 1 and len(source) == 1 |
| |
| name = source[0].get_text_contents() |
| obj = all_enums[name] |
| |
| code = code_formatter() |
| obj.cxx_decl(code) |
| code.write(target[0].abspath) |
| |
| def createSimObjectPyBindWrapper(target, source, env): |
| name = source[0].get_text_contents() |
| obj = sim_objects[name] |
| |
| code = code_formatter() |
| obj.pybind_decl(code) |
| code.write(target[0].abspath) |
| |
| # Generate all of the SimObject param C++ struct header files |
| params_hh_files = [] |
| for name,simobj in sorted(sim_objects.iteritems()): |
| py_source = PySource.modules[simobj.__module__] |
| extra_deps = [ py_source.tnode ] |
| |
| hh_file = File('params/%s.hh' % name) |
| params_hh_files.append(hh_file) |
| env.Command(hh_file, Value(name), |
| MakeAction(createSimObjectParamStruct, Transform("SO PARAM"))) |
| env.Depends(hh_file, depends + extra_deps) |
| |
| # C++ parameter description files |
| if GetOption('with_cxx_config'): |
| for name,simobj in sorted(sim_objects.iteritems()): |
| py_source = PySource.modules[simobj.__module__] |
| extra_deps = [ py_source.tnode ] |
| |
| cxx_config_hh_file = File('cxx_config/%s.hh' % name) |
| cxx_config_cc_file = File('cxx_config/%s.cc' % name) |
| env.Command(cxx_config_hh_file, Value(name), |
| MakeAction(createSimObjectCxxConfig(True), |
| Transform("CXXCPRHH"))) |
| env.Command(cxx_config_cc_file, Value(name), |
| MakeAction(createSimObjectCxxConfig(False), |
| Transform("CXXCPRCC"))) |
| env.Depends(cxx_config_hh_file, depends + extra_deps + |
| [File('params/%s.hh' % name), File('sim/cxx_config.hh')]) |
| env.Depends(cxx_config_cc_file, depends + extra_deps + |
| [cxx_config_hh_file]) |
| Source(cxx_config_cc_file) |
| |
| cxx_config_init_cc_file = File('cxx_config/init.cc') |
| |
| def createCxxConfigInitCC(target, source, env): |
| assert len(target) == 1 and len(source) == 1 |
| |
| code = code_formatter() |
| |
| for name,simobj in sorted(sim_objects.iteritems()): |
| if not hasattr(simobj, 'abstract') or not simobj.abstract: |
| code('#include "cxx_config/${name}.hh"') |
| code() |
| code('void cxxConfigInit()') |
| code('{') |
| code.indent() |
| for name,simobj in sorted(sim_objects.iteritems()): |
| not_abstract = not hasattr(simobj, 'abstract') or \ |
| not simobj.abstract |
| if not_abstract and 'type' in simobj.__dict__: |
| code('cxx_config_directory["${name}"] = ' |
| '${name}CxxConfigParams::makeDirectoryEntry();') |
| code.dedent() |
| code('}') |
| code.write(target[0].abspath) |
| |
| py_source = PySource.modules[simobj.__module__] |
| extra_deps = [ py_source.tnode ] |
| env.Command(cxx_config_init_cc_file, Value(name), |
| MakeAction(createCxxConfigInitCC, Transform("CXXCINIT"))) |
| cxx_param_hh_files = ["cxx_config/%s.hh" % simobj |
| for name,simobj in sorted(sim_objects.iteritems()) |
| if not hasattr(simobj, 'abstract') or not simobj.abstract] |
| Depends(cxx_config_init_cc_file, cxx_param_hh_files + |
| [File('sim/cxx_config.hh')]) |
| Source(cxx_config_init_cc_file) |
| |
| # Generate all enum header files |
| for name,enum in sorted(all_enums.iteritems()): |
| py_source = PySource.modules[enum.__module__] |
| extra_deps = [ py_source.tnode ] |
| |
| cc_file = File('enums/%s.cc' % name) |
| env.Command(cc_file, [Value(name), Value(env['USE_PYTHON'])], |
| MakeAction(createEnumStrings, Transform("ENUM STR"))) |
| env.Depends(cc_file, depends + extra_deps) |
| Source(cc_file) |
| |
| hh_file = File('enums/%s.hh' % name) |
| env.Command(hh_file, Value(name), |
| MakeAction(createEnumDecls, Transform("ENUMDECL"))) |
| env.Depends(hh_file, depends + extra_deps) |
| |
| # Generate SimObject Python bindings wrapper files |
| if env['USE_PYTHON']: |
| for name,simobj in sorted(sim_objects.iteritems()): |
| py_source = PySource.modules[simobj.__module__] |
| extra_deps = [ py_source.tnode ] |
| cc_file = File('python/_m5/param_%s.cc' % name) |
| env.Command(cc_file, Value(name), |
| MakeAction(createSimObjectPyBindWrapper, |
| Transform("SO PyBind"))) |
| env.Depends(cc_file, depends + extra_deps) |
| Source(cc_file) |
| |
| # Build all protocol buffers if we have got protoc and protobuf available |
| if env['HAVE_PROTOBUF']: |
| for proto in ProtoBuf.all: |
| # Use both the source and header as the target, and the .proto |
| # file as the source. When executing the protoc compiler, also |
| # specify the proto_path to avoid having the generated files |
| # include the path. |
| env.Command([proto.cc_file, proto.hh_file], proto.tnode, |
| MakeAction('$PROTOC --cpp_out ${TARGET.dir} ' |
| '--proto_path ${SOURCE.dir} $SOURCE', |
| Transform("PROTOC"))) |
| |
| # Add the C++ source file |
| Source(proto.cc_file, **proto.guards) |
| elif ProtoBuf.all: |
| print 'Got protobuf to build, but lacks support!' |
| Exit(1) |
| |
| # |
| # Handle debug flags |
| # |
| def makeDebugFlagCC(target, source, env): |
| assert(len(target) == 1 and len(source) == 1) |
| |
| code = code_formatter() |
| |
| # delay definition of CompoundFlags until after all the definition |
| # of all constituent SimpleFlags |
| comp_code = code_formatter() |
| |
| # file header |
| code(''' |
| /* |
| * DO NOT EDIT THIS FILE! Automatically generated by SCons. |
| */ |
| |
| #include "base/debug.hh" |
| |
| namespace Debug { |
| |
| ''') |
| |
| for name, flag in sorted(source[0].read().iteritems()): |
| n, compound, desc = flag |
| assert n == name |
| |
| if not compound: |
| code('SimpleFlag $name("$name", "$desc");') |
| else: |
| comp_code('CompoundFlag $name("$name", "$desc",') |
| comp_code.indent() |
| last = len(compound) - 1 |
| for i,flag in enumerate(compound): |
| if i != last: |
| comp_code('&$flag,') |
| else: |
| comp_code('&$flag);') |
| comp_code.dedent() |
| |
| code.append(comp_code) |
| code() |
| code('} // namespace Debug') |
| |
| code.write(str(target[0])) |
| |
| def makeDebugFlagHH(target, source, env): |
| assert(len(target) == 1 and len(source) == 1) |
| |
| val = eval(source[0].get_contents()) |
| name, compound, desc = val |
| |
| code = code_formatter() |
| |
| # file header boilerplate |
| code('''\ |
| /* |
| * DO NOT EDIT THIS FILE! Automatically generated by SCons. |
| */ |
| |
| #ifndef __DEBUG_${name}_HH__ |
| #define __DEBUG_${name}_HH__ |
| |
| namespace Debug { |
| ''') |
| |
| if compound: |
| code('class CompoundFlag;') |
| code('class SimpleFlag;') |
| |
| if compound: |
| code('extern CompoundFlag $name;') |
| for flag in compound: |
| code('extern SimpleFlag $flag;') |
| else: |
| code('extern SimpleFlag $name;') |
| |
| code(''' |
| } |
| |
| #endif // __DEBUG_${name}_HH__ |
| ''') |
| |
| code.write(str(target[0])) |
| |
| for name,flag in sorted(debug_flags.iteritems()): |
| n, compound, desc = flag |
| assert n == name |
| |
| hh_file = 'debug/%s.hh' % name |
| env.Command(hh_file, Value(flag), |
| MakeAction(makeDebugFlagHH, Transform("TRACING", 0))) |
| |
| env.Command('debug/flags.cc', Value(debug_flags), |
| MakeAction(makeDebugFlagCC, Transform("TRACING", 0))) |
| Source('debug/flags.cc') |
| |
| # version tags |
| tags = \ |
| env.Command('sim/tags.cc', None, |
| MakeAction('util/cpt_upgrader.py --get-cc-file > $TARGET', |
| Transform("VER TAGS"))) |
| env.AlwaysBuild(tags) |
| |
| # Embed python files. All .py files that have been indicated by a |
| # PySource() call in a SConscript need to be embedded into the M5 |
| # library. To do that, we compile the file to byte code, marshal the |
| # byte code, compress it, and then generate a c++ file that |
| # inserts the result into an array. |
| def embedPyFile(target, source, env): |
| def c_str(string): |
| if string is None: |
| return "0" |
| return '"%s"' % string |
| |
| '''Action function to compile a .py into a code object, marshal |
| it, compress it, and stick it into an asm file so the code appears |
| as just bytes with a label in the data section''' |
| |
| src = file(str(source[0]), 'r').read() |
| |
| pysource = PySource.tnodes[source[0]] |
| compiled = compile(src, pysource.abspath, 'exec') |
| marshalled = marshal.dumps(compiled) |
| compressed = zlib.compress(marshalled) |
| data = compressed |
| sym = pysource.symname |
| |
| code = code_formatter() |
| code('''\ |
| #include "sim/init.hh" |
| |
| namespace { |
| |
| const uint8_t data_${sym}[] = { |
| ''') |
| code.indent() |
| step = 16 |
| for i in xrange(0, len(data), step): |
| x = array.array('B', data[i:i+step]) |
| code(''.join('%d,' % d for d in x)) |
| code.dedent() |
| |
| code('''}; |
| |
| EmbeddedPython embedded_${sym}( |
| ${{c_str(pysource.arcname)}}, |
| ${{c_str(pysource.abspath)}}, |
| ${{c_str(pysource.modpath)}}, |
| data_${sym}, |
| ${{len(data)}}, |
| ${{len(marshalled)}}); |
| |
| } // anonymous namespace |
| ''') |
| code.write(str(target[0])) |
| |
| for source in PySource.all: |
| env.Command(source.cpp, source.tnode, |
| MakeAction(embedPyFile, Transform("EMBED PY"))) |
| Source(source.cpp, skip_no_python=True) |
| |
| ######################################################################## |
| # |
| # Define binaries. Each different build type (debug, opt, etc.) gets |
| # a slightly different build environment. |
| # |
| |
| # List of constructed environments to pass back to SConstruct |
| date_source = Source('base/date.cc', skip_lib=True) |
| |
| # Function to create a new build environment as clone of current |
| # environment 'env' with modified object suffix and optional stripped |
| # binary. Additional keyword arguments are appended to corresponding |
| # build environment vars. |
| def makeEnv(env, label, objsfx, strip=False, disable_partial=False, **kwargs): |
| # SCons doesn't know to append a library suffix when there is a '.' in the |
| # name. Use '_' instead. |
| libname = 'gem5_' + label |
| exename = 'gem5.' + label |
| secondary_exename = 'm5.' + label |
| |
| new_env = env.Clone(OBJSUFFIX=objsfx, SHOBJSUFFIX=objsfx + 's') |
| new_env.Label = label |
| new_env.Append(**kwargs) |
| |
| if env['GCC']: |
| # The address sanitizer is available for gcc >= 4.8 |
| if GetOption('with_asan'): |
| if GetOption('with_ubsan') and \ |
| compareVersions(env['GCC_VERSION'], '4.9') >= 0: |
| new_env.Append(CCFLAGS=['-fsanitize=address,undefined', |
| '-fno-omit-frame-pointer']) |
| new_env.Append(LINKFLAGS='-fsanitize=address,undefined') |
| else: |
| new_env.Append(CCFLAGS=['-fsanitize=address', |
| '-fno-omit-frame-pointer']) |
| new_env.Append(LINKFLAGS='-fsanitize=address') |
| # Only gcc >= 4.9 supports UBSan, so check both the version |
| # and the command-line option before adding the compiler and |
| # linker flags. |
| elif GetOption('with_ubsan') and \ |
| compareVersions(env['GCC_VERSION'], '4.9') >= 0: |
| new_env.Append(CCFLAGS='-fsanitize=undefined') |
| new_env.Append(LINKFLAGS='-fsanitize=undefined') |
| |
| |
| if env['CLANG']: |
| # We require clang >= 3.1, so there is no need to check any |
| # versions here. |
| if GetOption('with_ubsan'): |
| if GetOption('with_asan'): |
| new_env.Append(CCFLAGS=['-fsanitize=address,undefined', |
| '-fno-omit-frame-pointer']) |
| new_env.Append(LINKFLAGS='-fsanitize=address,undefined') |
| else: |
| new_env.Append(CCFLAGS='-fsanitize=undefined') |
| new_env.Append(LINKFLAGS='-fsanitize=undefined') |
| |
| elif GetOption('with_asan'): |
| new_env.Append(CCFLAGS=['-fsanitize=address', |
| '-fno-omit-frame-pointer']) |
| new_env.Append(LINKFLAGS='-fsanitize=address') |
| |
| werror_env = new_env.Clone() |
| # Treat warnings as errors but white list some warnings that we |
| # want to allow (e.g., deprecation warnings). |
| werror_env.Append(CCFLAGS=['-Werror', |
| '-Wno-error=deprecated-declarations', |
| '-Wno-error=deprecated', |
| ]) |
| |
| def make_obj(source, static, extra_deps = None): |
| '''This function adds the specified source to the correct |
| build environment, and returns the corresponding SCons Object |
| nodes''' |
| |
| if source.Werror: |
| env = werror_env |
| else: |
| env = new_env |
| |
| if static: |
| obj = env.StaticObject(source.tnode) |
| else: |
| obj = env.SharedObject(source.tnode) |
| |
| if extra_deps: |
| env.Depends(obj, extra_deps) |
| |
| return obj |
| |
| lib_guards = {'main': False, 'skip_lib': False} |
| |
| # 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_guards['skip_no_python'] = False |
| |
| static_objs = [] |
| shared_objs = [] |
| for s in guarded_source_iterator(Source.source_groups[None], **lib_guards): |
| static_objs.append(make_obj(s, True)) |
| shared_objs.append(make_obj(s, False)) |
| |
| partial_objs = [] |
| for group, all_srcs in Source.source_groups.iteritems(): |
| # If these are the ungrouped source files, skip them. |
| if not group: |
| continue |
| |
| # Get a list of the source files compatible with the current guards. |
| srcs = [ s for s in guarded_source_iterator(all_srcs, **lib_guards) ] |
| # If there aren't any left, skip this group. |
| if not srcs: |
| continue |
| |
| # If partial linking is disabled, add these sources to the build |
| # directly, and short circuit this loop. |
| if disable_partial: |
| for s in srcs: |
| static_objs.append(make_obj(s, True)) |
| shared_objs.append(make_obj(s, False)) |
| continue |
| |
| # Set up the static partially linked objects. |
| source_objs = [ make_obj(s, True) for s in srcs ] |
| file_name = new_env.subst("${OBJPREFIX}lib${OBJSUFFIX}.partial") |
| target = File(joinpath(group, file_name)) |
| partial = env.PartialStatic(target=target, source=source_objs) |
| static_objs.append(partial) |
| |
| # Set up the shared partially linked objects. |
| source_objs = [ make_obj(s, False) for s in srcs ] |
| file_name = new_env.subst("${SHOBJPREFIX}lib${SHOBJSUFFIX}.partial") |
| target = File(joinpath(group, file_name)) |
| partial = env.PartialShared(target=target, source=source_objs) |
| shared_objs.append(partial) |
| |
| static_date = make_obj(date_source, static=True, extra_deps=static_objs) |
| static_objs.append(static_date) |
| |
| shared_date = make_obj(date_source, static=False, extra_deps=shared_objs) |
| shared_objs.append(shared_date) |
| |
| # First make a library of everything but main() so other programs can |
| # link against m5. |
| static_lib = new_env.StaticLibrary(libname, static_objs) |
| shared_lib = new_env.SharedLibrary(libname, shared_objs) |
| |
| # Now link a stub with main() and the static library. |
| main_objs = [ make_obj(s, True) for s in Source.get(main=True) ] |
| |
| for test in UnitTest.all: |
| flags = { test.target : True } |
| test_sources = Source.get(**flags) |
| test_objs = [ make_obj(s, static=True) for s in test_sources ] |
| if test.main: |
| test_objs += main_objs |
| path = 'unittest/%s.%s' % (test.target, label) |
| new_env.Program(path, test_objs + static_objs) |
| |
| progname = exename |
| if strip: |
| progname += '.unstripped' |
| |
| targets = new_env.Program(progname, main_objs + static_objs) |
| |
| if strip: |
| if sys.platform == 'sunos5': |
| cmd = 'cp $SOURCE $TARGET; strip $TARGET' |
| else: |
| cmd = 'strip $SOURCE -o $TARGET' |
| targets = new_env.Command(exename, progname, |
| MakeAction(cmd, Transform("STRIP"))) |
| |
| new_env.Command(secondary_exename, exename, |
| MakeAction('ln $SOURCE $TARGET', Transform("HARDLINK"))) |
| |
| new_env.M5Binary = targets[0] |
| |
| # Set up regression tests. |
| SConscript(os.path.join(env.root.abspath, 'tests', 'SConscript'), |
| variant_dir=Dir('tests').Dir(new_env.Label), |
| exports={ 'env' : new_env }, duplicate=False) |
| |
| # Start out with the compiler flags common to all compilers, |
| # i.e. they all use -g for opt and -g -pg for prof |
| ccflags = {'debug' : [], 'opt' : ['-g'], 'fast' : [], 'prof' : ['-g', '-pg'], |
| 'perf' : ['-g']} |
| |
| # Start out with the linker flags common to all linkers, i.e. -pg for |
| # prof, and -lprofiler for perf. The -lprofile flag is surrounded by |
| # no-as-needed and as-needed as the binutils linker is too clever and |
| # simply doesn't link to the library otherwise. |
| ldflags = {'debug' : [], 'opt' : [], 'fast' : [], 'prof' : ['-pg'], |
| 'perf' : ['-Wl,--no-as-needed', '-lprofiler', '-Wl,--as-needed']} |
| |
| # 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': |
| ccflags['debug'] += ['-gstabs+'] |
| else: |
| ccflags['debug'] += ['-ggdb3'] |
| ldflags['debug'] += ['-O0'] |
| # opt, fast, prof and perf all share the same cc flags, also add |
| # the optimization to the ldflags as LTO defers the optimization |
| # to link time |
| for target in ['opt', 'fast', 'prof', 'perf']: |
| ccflags[target] += ['-O3'] |
| ldflags[target] += ['-O3'] |
| |
| ccflags['fast'] += env['LTO_CCFLAGS'] |
| ldflags['fast'] += env['LTO_LDFLAGS'] |
| elif env['CLANG']: |
| ccflags['debug'] += ['-g', '-O0'] |
| # opt, fast, prof and perf all share the same cc flags |
| for target in ['opt', 'fast', 'prof', 'perf']: |
| ccflags[target] += ['-O3'] |
| else: |
| print 'Unknown compiler, please fix compiler options' |
| Exit(1) |
| |
| |
| # 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. |
| target_types = ['debug', 'opt', 'fast', 'prof', 'perf'] |
| obj2target = {'do': 'debug', 'o': 'opt', 'fo': 'fast', 'po': 'prof', |
| 'gpo' : 'perf'} |
| |
| def identifyTarget(t): |
| ext = t.split('.')[-1] |
| if ext in target_types: |
| return ext |
| if obj2target.has_key(ext): |
| return obj2target[ext] |
| match = re.search(r'/tests/([^/]+)/', t) |
| if match and match.group(1) in target_types: |
| return match.group(1) |
| return 'all' |
| |
| needed_envs = [identifyTarget(target) for target in BUILD_TARGETS] |
| if 'all' in needed_envs: |
| needed_envs += target_types |
| |
| # Debug binary |
| if 'debug' in needed_envs: |
| makeEnv(env, 'debug', '.do', |
| CCFLAGS = Split(ccflags['debug']), |
| CPPDEFINES = ['DEBUG', 'TRACING_ON=1'], |
| LINKFLAGS = Split(ldflags['debug'])) |
| |
| # Optimized binary |
| if 'opt' in needed_envs: |
| makeEnv(env, 'opt', '.o', |
| CCFLAGS = Split(ccflags['opt']), |
| CPPDEFINES = ['TRACING_ON=1'], |
| LINKFLAGS = Split(ldflags['opt'])) |
| |
| # "Fast" binary |
| if 'fast' in needed_envs: |
| disable_partial = \ |
| env.get('BROKEN_INCREMENTAL_LTO', False) and \ |
| GetOption('force_lto') |
| makeEnv(env, 'fast', '.fo', strip = True, |
| CCFLAGS = Split(ccflags['fast']), |
| CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'], |
| LINKFLAGS = Split(ldflags['fast']), |
| disable_partial=disable_partial) |
| |
| # Profiled binary using gprof |
| if 'prof' in needed_envs: |
| makeEnv(env, 'prof', '.po', |
| CCFLAGS = Split(ccflags['prof']), |
| CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'], |
| LINKFLAGS = Split(ldflags['prof'])) |
| |
| # Profiled binary using google-pprof |
| if 'perf' in needed_envs: |
| makeEnv(env, 'perf', '.gpo', |
| CCFLAGS = Split(ccflags['perf']), |
| CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'], |
| LINKFLAGS = Split(ldflags['perf'])) |
