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gem5/src/SConscript
Nathan Binkert 4d64d7664c SCons: Allow top level directory of EXTRAS able to contain SConscripts. 
The current EXTRAS will fail if the top level directory pointed to by EXTRAS
has a SConscript file in it.  We allow this by including the directory name
of the EXTRA in the build directory which prevents a clash between
src/SConscript and extra/SConscript. Maintain compatibility with older uses
of EXTRAS by adding a -I for each top level extra directory.
2008-11-10 11:51:18 -08:00

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# -*- 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 imp
import marshal
import os
import re
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 M5
# based on variable settings in the 'env' build environment.
Import('*')
# Children need to see the environment
Export('env')
build_env = dict([(opt, env[opt]) for opt in env.ExportOptions])
def sort_list(_list):
"""return a sorted copy of '_list'"""
if isinstance(_list, list):
_list = _list[:]
else:
_list = list(_list)
_list.sort()
return _list
class PySourceFile(object):
invalid_sym_char = re.compile('[^A-z0-9_]')
def __init__(self, package, tnode):
snode = tnode.srcnode()
filename = str(tnode)
pyname = basename(filename)
assert pyname.endswith('.py')
name = pyname[:-3]
if package:
path = package.split('.')
else:
path = []
modpath = path[:]
if name != '__init__':
modpath += [name]
modpath = '.'.join(modpath)
arcpath = path + [ pyname ]
arcname = joinpath(*arcpath)
debugname = snode.abspath
if not exists(debugname):
debugname = tnode.abspath
self.tnode = tnode
self.snode = snode
self.pyname = pyname
self.package = package
self.modpath = modpath
self.arcname = arcname
self.debugname = debugname
self.compiled = File(filename + 'c')
self.assembly = File(filename + '.s')
self.symname = "PyEMB_" + self.invalid_sym_char.sub('_', modpath)
########################################################################
# Code for adding source files of various types
#
cc_lib_sources = []
def Source(source):
'''Add a source file to the libm5 build'''
if not isinstance(source, SCons.Node.FS.File):
source = File(source)
cc_lib_sources.append(source)
cc_bin_sources = []
def BinSource(source):
'''Add a source file to the m5 binary build'''
if not isinstance(source, SCons.Node.FS.File):
source = File(source)
cc_bin_sources.append(source)
py_sources = []
def PySource(package, source):
'''Add a python source file to the named package'''
if not isinstance(source, SCons.Node.FS.File):
source = File(source)
source = PySourceFile(package, source)
py_sources.append(source)
sim_objects_fixed = False
sim_object_modfiles = set()
def SimObject(source):
'''Add a SimObject python file as a python source object and add
it to a list of sim object modules'''
if sim_objects_fixed:
raise AttributeError, "Too late to call SimObject now."
if not isinstance(source, SCons.Node.FS.File):
source = File(source)
PySource('m5.objects', source)
modfile = basename(str(source))
assert modfile.endswith('.py')
modname = modfile[:-3]
sim_object_modfiles.add(modname)
swig_sources = []
def SwigSource(package, source):
'''Add a swig file to build'''
if not isinstance(source, SCons.Node.FS.File):
source = File(source)
val = source,package
swig_sources.append(val)
unit_tests = []
def UnitTest(target, sources):
if not isinstance(sources, (list, tuple)):
sources = [ sources ]
srcs = []
for source in sources:
if not isinstance(source, SCons.Node.FS.File):
source = File(source)
srcs.append(source)
unit_tests.append((target, srcs))
# Children should have access
Export('Source')
Export('BinSource')
Export('PySource')
Export('SimObject')
Export('SwigSource')
Export('UnitTest')
########################################################################
#
# Trace Flags
#
all_flags = {}
trace_flags = []
def TraceFlag(name, desc=''):
if name in all_flags:
raise AttributeError, "Flag %s already specified" % name
flag = (name, (), desc)
trace_flags.append(flag)
all_flags[name] = ()
def CompoundFlag(name, flags, desc=''):
if name in all_flags:
raise AttributeError, "Flag %s already specified" % name
compound = tuple(flags)
for flag in compound:
if flag not in all_flags:
raise AttributeError, "Trace flag %s not found" % flag
if all_flags[flag]:
raise AttributeError, \
"Compound flag can't point to another compound flag"
flag = (name, compound, desc)
trace_flags.append(flag)
all_flags[name] = compound
Export('TraceFlag')
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))
# Add a flag defining what THE_ISA should be for all compilation
env.Append(CPPDEFINES=[('THE_ISA','%s_ISA' % env['TARGET_ISA'].upper())])
########################################################################
#
# 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:])
SConscript(joinpath(root, 'SConscript'), build_dir=build_dir)
for extra_dir in extras_dir_list:
prefix_len = len(dirname(extra_dir)) + 1
for root, dirs, files in os.walk(extra_dir, topdown=True):
if 'SConscript' in files:
build_dir = joinpath(env['BUILDDIR'], root[prefix_len:])
SConscript(joinpath(root, 'SConscript'), build_dir=build_dir)
for opt in env.ExportOptions:
env.ConfigFile(opt)
########################################################################
#
# Prevent any SimObjects from being added after this point, they
# should all have been added in the SConscripts above
#
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 == '__scons':
return self
if fullname == 'm5.objects':
return self
if fullname.startswith('m5.internal'):
return None
if fullname in self.modules and exists(self.modules[fullname]):
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 == '__scons':
mod.__dict__['m5_build_env'] = build_env
return mod
srcfile = self.modules[fullname]
if basename(srcfile) == '__init__.py':
mod.__path__ = fullname.split('.')
mod.__file__ = srcfile
exec file(srcfile, 'r') in mod.__dict__
return mod
py_modules = {}
for source in py_sources:
py_modules[source.modpath] = source.snode.abspath
# 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.
sim_objects_fixed = True
importer = DictImporter(py_modules)
sys.meta_path[0:0] = [ importer ]
import m5
# 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
sim_objects = list(sim_object_modfiles)
sim_objects.sort()
for simobj in sim_objects:
exec('from m5.objects import %s' % simobj)
# 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
all_params = {}
for name,obj in sim_objects.iteritems():
for param in obj._params.local.values():
if not hasattr(param, 'swig_decl'):
continue
pname = param.ptype_str
if pname not in all_params:
all_params[pname] = param
########################################################################
#
# calculate extra dependencies
#
module_depends = ["m5", "m5.SimObject", "m5.params"]
depends = [ File(py_modules[dep]) for dep in module_depends ]
########################################################################
#
# Commands for the basic automatically generated python files
#
# Generate Python file containing a dict specifying the current
# build_env flags.
def makeDefinesPyFile(target, source, env):
f = file(str(target[0]), 'w')
print >>f, "m5_build_env = ", source[0]
f.close()
# Generate python file containing info about the M5 source code
def makeInfoPyFile(target, source, env):
f = file(str(target[0]), 'w')
for src in source:
data = ''.join(file(src.srcnode().abspath, 'r').xreadlines())
print >>f, "%s = %s" % (src, repr(data))
f.close()
# Generate the __init__.py file for m5.objects
def makeObjectsInitFile(target, source, env):
f = file(str(target[0]), 'w')
print >>f, 'from params import *'
print >>f, 'from m5.SimObject import *'
for module in source:
print >>f, 'from %s import *' % module.get_contents()
f.close()
# Generate a file with all of the compile options in it
env.Command('python/m5/defines.py', Value(build_env), makeDefinesPyFile)
PySource('m5', 'python/m5/defines.py')
# Generate a file that wraps the basic top level files
env.Command('python/m5/info.py',
[ '#/AUTHORS', '#/LICENSE', '#/README', '#/RELEASE_NOTES' ],
makeInfoPyFile)
PySource('m5', 'python/m5/info.py')
# Generate an __init__.py file for the objects package
env.Command('python/m5/objects/__init__.py',
[ Value(o) for o in sort_list(sim_object_modfiles) ],
makeObjectsInitFile)
PySource('m5.objects', 'python/m5/objects/__init__.py')
########################################################################
#
# Create all of the SimObject param headers and enum headers
#
def createSimObjectParam(target, source, env):
assert len(target) == 1 and len(source) == 1
hh_file = file(target[0].abspath, 'w')
name = str(source[0].get_contents())
obj = sim_objects[name]
print >>hh_file, obj.cxx_decl()
def createSwigParam(target, source, env):
assert len(target) == 1 and len(source) == 1
i_file = file(target[0].abspath, 'w')
name = str(source[0].get_contents())
param = all_params[name]
for line in param.swig_decl():
print >>i_file, line
def createEnumStrings(target, source, env):
assert len(target) == 1 and len(source) == 1
cc_file = file(target[0].abspath, 'w')
name = str(source[0].get_contents())
obj = all_enums[name]
print >>cc_file, obj.cxx_def()
cc_file.close()
def createEnumParam(target, source, env):
assert len(target) == 1 and len(source) == 1
hh_file = file(target[0].abspath, 'w')
name = str(source[0].get_contents())
obj = all_enums[name]
print >>hh_file, obj.cxx_decl()
# Generate all of the SimObject param struct header files
params_hh_files = []
for name,simobj in sim_objects.iteritems():
extra_deps = [ File(py_modules[simobj.__module__]) ]
hh_file = File('params/%s.hh' % name)
params_hh_files.append(hh_file)
env.Command(hh_file, Value(name), createSimObjectParam)
env.Depends(hh_file, depends + extra_deps)
# Generate any parameter header files needed
params_i_files = []
for name,param in all_params.iteritems():
if isinstance(param, m5.params.VectorParamDesc):
ext = 'vptype'
else:
ext = 'ptype'
i_file = File('params/%s_%s.i' % (name, ext))
params_i_files.append(i_file)
env.Command(i_file, Value(name), createSwigParam)
env.Depends(i_file, depends)
# Generate all enum header files
for name,enum in all_enums.iteritems():
extra_deps = [ File(py_modules[enum.__module__]) ]
cc_file = File('enums/%s.cc' % name)
env.Command(cc_file, Value(name), createEnumStrings)
env.Depends(cc_file, depends + extra_deps)
Source(cc_file)
hh_file = File('enums/%s.hh' % name)
env.Command(hh_file, Value(name), createEnumParam)
env.Depends(hh_file, depends + extra_deps)
# Build the big monolithic swigged params module (wraps all SimObject
# param structs and enum structs)
def buildParams(target, source, env):
names = [ s.get_contents() for s in source ]
objs = [ sim_objects[name] for name in names ]
out = file(target[0].abspath, 'w')
ordered_objs = []
obj_seen = set()
def order_obj(obj):
name = str(obj)
if name in obj_seen:
return
obj_seen.add(name)
if str(obj) != 'SimObject':
order_obj(obj.__bases__[0])
ordered_objs.append(obj)
for obj in objs:
order_obj(obj)
enums = set()
predecls = []
pd_seen = set()
def add_pds(*pds):
for pd in pds:
if pd not in pd_seen:
predecls.append(pd)
pd_seen.add(pd)
for obj in ordered_objs:
params = obj._params.local.values()
for param in params:
ptype = param.ptype
if issubclass(ptype, m5.params.Enum):
if ptype not in enums:
enums.add(ptype)
pds = param.swig_predecls()
if isinstance(pds, (list, tuple)):
add_pds(*pds)
else:
add_pds(pds)
print >>out, '%module params'
print >>out, '%{'
for obj in ordered_objs:
print >>out, '#include "params/%s.hh"' % obj
print >>out, '%}'
for pd in predecls:
print >>out, pd
enums = list(enums)
enums.sort()
for enum in enums:
print >>out, '%%include "enums/%s.hh"' % enum.__name__
print >>out
for obj in ordered_objs:
if obj.swig_objdecls:
for decl in obj.swig_objdecls:
print >>out, decl
continue
class_path = obj.cxx_class.split('::')
classname = class_path[-1]
namespaces = class_path[:-1]
namespaces.reverse()
code = ''
if namespaces:
code += '// avoid name conflicts\n'
sep_string = '_COLONS_'
flat_name = sep_string.join(class_path)
code += '%%rename(%s) %s;\n' % (flat_name, classname)
code += '// stop swig from creating/wrapping default ctor/dtor\n'
code += '%%nodefault %s;\n' % classname
code += 'class %s ' % classname
if obj._base:
code += ': public %s' % obj._base.cxx_class
code += ' {};\n'
for ns in namespaces:
new_code = 'namespace %s {\n' % ns
new_code += code
new_code += '}\n'
code = new_code
print >>out, code
print >>out, '%%include "src/sim/sim_object_params.hh"' % obj
for obj in ordered_objs:
print >>out, '%%include "params/%s.hh"' % obj
params_file = File('params/params.i')
names = sort_list(sim_objects.keys())
env.Command(params_file, [ Value(v) for v in names ], buildParams)
env.Depends(params_file, params_hh_files + params_i_files + depends)
SwigSource('m5.objects', params_file)
# Build all swig modules
swig_modules = []
cc_swig_sources = []
for source,package in swig_sources:
filename = str(source)
assert filename.endswith('.i')
base = '.'.join(filename.split('.')[:-1])
module = basename(base)
cc_file = base + '_wrap.cc'
py_file = base + '.py'
env.Command([cc_file, py_file], source,
'$SWIG $SWIGFLAGS -outdir ${TARGETS[1].dir} '
'-o ${TARGETS[0]} $SOURCES')
env.Depends(py_file, source)
env.Depends(cc_file, source)
swig_modules.append(Value(module))
cc_swig_sources.append(File(cc_file))
PySource(package, py_file)
# Generate the main swig init file
def makeSwigInit(target, source, env):
f = file(str(target[0]), 'w')
print >>f, 'extern "C" {'
for module in source:
print >>f, ' void init_%s();' % module.get_contents()
print >>f, '}'
print >>f, 'void initSwig() {'
for module in source:
print >>f, ' init_%s();' % module.get_contents()
print >>f, '}'
f.close()
env.Command('python/swig/init.cc', swig_modules, makeSwigInit)
Source('python/swig/init.cc')
# Generate traceflags.py
def traceFlagsPy(target, source, env):
assert(len(target) == 1)
f = file(str(target[0]), 'w')
allFlags = []
for s in source:
val = eval(s.get_contents())
allFlags.append(val)
print >>f, 'baseFlags = ['
for flag, compound, desc in allFlags:
if not compound:
print >>f, " '%s'," % flag
print >>f, " ]"
print >>f
print >>f, 'compoundFlags = ['
print >>f, " 'All',"
for flag, compound, desc in allFlags:
if compound:
print >>f, " '%s'," % flag
print >>f, " ]"
print >>f
print >>f, "allFlags = frozenset(baseFlags + compoundFlags)"
print >>f
print >>f, 'compoundFlagMap = {'
all = tuple([flag for flag,compound,desc in allFlags if not compound])
print >>f, " 'All' : %s," % (all, )
for flag, compound, desc in allFlags:
if compound:
print >>f, " '%s' : %s," % (flag, compound)
print >>f, " }"
print >>f
print >>f, 'flagDescriptions = {'
print >>f, " 'All' : 'All flags',"
for flag, compound, desc in allFlags:
print >>f, " '%s' : '%s'," % (flag, desc)
print >>f, " }"
f.close()
def traceFlagsCC(target, source, env):
assert(len(target) == 1)
f = file(str(target[0]), 'w')
allFlags = []
for s in source:
val = eval(s.get_contents())
allFlags.append(val)
# file header
print >>f, '''
/*
* DO NOT EDIT THIS FILE! Automatically generated
*/
#include "base/traceflags.hh"
using namespace Trace;
const char *Trace::flagStrings[] =
{'''
# The string array is used by SimpleEnumParam to map the strings
# provided by the user to enum values.
for flag, compound, desc in allFlags:
if not compound:
print >>f, ' "%s",' % flag
print >>f, ' "All",'
for flag, compound, desc in allFlags:
if compound:
print >>f, ' "%s",' % flag
print >>f, '};'
print >>f
print >>f, 'const int Trace::numFlagStrings = %d;' % (len(allFlags) + 1)
print >>f
#
# Now define the individual compound flag arrays. There is an array
# for each compound flag listing the component base flags.
#
all = tuple([flag for flag,compound,desc in allFlags if not compound])
print >>f, 'static const Flags AllMap[] = {'
for flag, compound, desc in allFlags:
if not compound:
print >>f, " %s," % flag
print >>f, '};'
print >>f
for flag, compound, desc in allFlags:
if not compound:
continue
print >>f, 'static const Flags %sMap[] = {' % flag
for flag in compound:
print >>f, " %s," % flag
print >>f, " (Flags)-1"
print >>f, '};'
print >>f
#
# Finally the compoundFlags[] array maps the compound flags
# to their individual arrays/
#
print >>f, 'const Flags *Trace::compoundFlags[] ='
print >>f, '{'
print >>f, ' AllMap,'
for flag, compound, desc in allFlags:
if compound:
print >>f, ' %sMap,' % flag
# file trailer
print >>f, '};'
f.close()
def traceFlagsHH(target, source, env):
assert(len(target) == 1)
f = file(str(target[0]), 'w')
allFlags = []
for s in source:
val = eval(s.get_contents())
allFlags.append(val)
# file header boilerplate
print >>f, '''
/*
* DO NOT EDIT THIS FILE!
*
* Automatically generated from traceflags.py
*/
#ifndef __BASE_TRACE_FLAGS_HH__
#define __BASE_TRACE_FLAGS_HH__
namespace Trace {
enum Flags {'''
# Generate the enum. Base flags come first, then compound flags.
idx = 0
for flag, compound, desc in allFlags:
if not compound:
print >>f, ' %s = %d,' % (flag, idx)
idx += 1
numBaseFlags = idx
print >>f, ' NumFlags = %d,' % idx
# put a comment in here to separate base from compound flags
print >>f, '''
// The remaining enum values are *not* valid indices for Trace::flags.
// They are "compound" flags, which correspond to sets of base
// flags, and are used by changeFlag.'''
print >>f, ' All = %d,' % idx
idx += 1
for flag, compound, desc in allFlags:
if compound:
print >>f, ' %s = %d,' % (flag, idx)
idx += 1
numCompoundFlags = idx - numBaseFlags
print >>f, ' NumCompoundFlags = %d' % numCompoundFlags
# trailer boilerplate
print >>f, '''\
}; // enum Flags
// Array of strings for SimpleEnumParam
extern const char *flagStrings[];
extern const int numFlagStrings;
// Array of arraay pointers: for each compound flag, gives the list of
// base flags to set. Inidividual flag arrays are terminated by -1.
extern const Flags *compoundFlags[];
/* namespace Trace */ }
#endif // __BASE_TRACE_FLAGS_HH__
'''
f.close()
flags = [ Value(f) for f in trace_flags ]
env.Command('base/traceflags.py', flags, traceFlagsPy)
PySource('m5', 'base/traceflags.py')
env.Command('base/traceflags.hh', flags, traceFlagsHH)
env.Command('base/traceflags.cc', flags, traceFlagsCC)
Source('base/traceflags.cc')
# Generate program_info.cc
def programInfo(target, source, env):
def gen_file(target, rev, node, date):
pi_stats = file(target, 'w')
print >>pi_stats, 'const char *hgRev = "%s:%s";' % (rev, node)
print >>pi_stats, 'const char *hgDate = "%s";' % date
pi_stats.close()
target = str(target[0])
scons_dir = str(source[0].get_contents())
try:
import mercurial.demandimport, mercurial.hg, mercurial.ui
import mercurial.util, mercurial.node
if not exists(scons_dir) or not isdir(scons_dir) or \
not exists(joinpath(scons_dir, ".hg")):
raise ValueError
repo = mercurial.hg.repository(mercurial.ui.ui(), scons_dir)
rev = mercurial.node.nullrev + repo.changelog.count()
changenode = repo.changelog.node(rev)
changes = repo.changelog.read(changenode)
date = mercurial.util.datestr(changes[2])
gen_file(target, rev, mercurial.node.hex(changenode), date)
mercurial.demandimport.disable()
except ImportError:
gen_file(target, "Unknown", "Unknown", "Unknown")
except:
print "in except"
gen_file(target, "Unknown", "Unknown", "Unknown")
mercurial.demandimport.disable()
env.Command('base/program_info.cc',
Value(str(SCons.Node.FS.default_fs.SConstruct_dir)),
programInfo)
# 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 an assembly file that
# inserts the result into the data section with symbols indicating the
# beginning, and end (and with the size at the end)
py_sources_tnodes = {}
for pysource in py_sources:
py_sources_tnodes[pysource.tnode] = pysource
def objectifyPyFile(target, source, env):
'''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()
dst = file(str(target[0]), 'w')
pysource = py_sources_tnodes[source[0]]
compiled = compile(src, pysource.debugname, 'exec')
marshalled = marshal.dumps(compiled)
compressed = zlib.compress(marshalled)
data = compressed
# Some C/C++ compilers prepend an underscore to global symbol
# names, so if they're going to do that, we need to prepend that
# leading underscore to globals in the assembly file.
if env['LEADING_UNDERSCORE']:
sym = '_' + pysource.symname
else:
sym = pysource.symname
step = 16
print >>dst, ".data"
print >>dst, ".globl %s_beg" % sym
print >>dst, ".globl %s_end" % sym
print >>dst, "%s_beg:" % sym
for i in xrange(0, len(data), step):
x = array.array('B', data[i:i+step])
print >>dst, ".byte", ','.join([str(d) for d in x])
print >>dst, "%s_end:" % sym
print >>dst, ".long %d" % len(marshalled)
for source in py_sources:
env.Command(source.assembly, source.tnode, objectifyPyFile)
Source(source.assembly)
# Generate init_python.cc which creates a bunch of EmbeddedPyModule
# structs that describe the embedded python code. One such struct
# contains information about the importer that python uses to get at
# the embedded files, and then there's a list of all of the rest that
# the importer uses to load the rest on demand.
py_sources_symbols = {}
for pysource in py_sources:
py_sources_symbols[pysource.symname] = pysource
def pythonInit(target, source, env):
dst = file(str(target[0]), 'w')
def dump_mod(sym, endchar=','):
pysource = py_sources_symbols[sym]
print >>dst, ' { "%s",' % pysource.arcname
print >>dst, ' "%s",' % pysource.modpath
print >>dst, ' %s_beg, %s_end,' % (sym, sym)
print >>dst, ' %s_end - %s_beg,' % (sym, sym)
print >>dst, ' *(int *)%s_end }%s' % (sym, endchar)
print >>dst, '#include "sim/init.hh"'
for sym in source:
sym = sym.get_contents()
print >>dst, "extern const char %s_beg[], %s_end[];" % (sym, sym)
print >>dst, "const EmbeddedPyModule embeddedPyImporter = "
dump_mod("PyEMB_importer", endchar=';');
print >>dst
print >>dst, "const EmbeddedPyModule embeddedPyModules[] = {"
for i,sym in enumerate(source):
sym = sym.get_contents()
if sym == "PyEMB_importer":
# Skip the importer since we've already exported it
continue
dump_mod(sym)
print >>dst, " { 0, 0, 0, 0, 0, 0 }"
print >>dst, "};"
symbols = [Value(s.symname) for s in py_sources]
env.Command('sim/init_python.cc', symbols, pythonInit)
Source('sim/init_python.cc')
########################################################################
#
# Define binaries. Each different build type (debug, opt, etc.) gets
# a slightly different build environment.
#
# List of constructed environments to pass back to SConstruct
envList = []
# This function adds the specified sources to the given build
# environment, and returns a list of all the corresponding SCons
# Object nodes (including an extra one for date.cc). We explicitly
# add the Object nodes so we can set up special dependencies for
# date.cc.
def make_objs(sources, env, static):
if static:
XObject = env.StaticObject
else:
XObject = env.SharedObject
objs = [ XObject(s) for s in sources ]
# make date.cc depend on all other objects so it always gets
# recompiled whenever anything else does
date_obj = XObject('base/date.cc')
# Make the generation of program_info.cc dependend on all
# the other cc files and the compiling of program_info.cc
# dependent on all the objects but program_info.o
pinfo_obj = XObject('base/program_info.cc')
env.Depends('base/program_info.cc', sources)
env.Depends(date_obj, objs)
env.Depends(pinfo_obj, objs)
objs.extend([date_obj, pinfo_obj])
return objs
# 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(label, objsfx, strip = False, **kwargs):
# SCons doesn't know to append a library suffix when there is a '.' in the
# name. Use '_' instead.
libname = 'm5_' + label
exename = 'm5.' + label
new_env = env.Copy(OBJSUFFIX=objsfx, SHOBJSUFFIX=objsfx + 's')
new_env.Label = label
new_env.Append(**kwargs)
swig_env = new_env.Copy()
if env['GCC']:
swig_env.Append(CCFLAGS='-Wno-uninitialized')
swig_env.Append(CCFLAGS='-Wno-sign-compare')
swig_env.Append(CCFLAGS='-Wno-parentheses')
static_objs = make_objs(cc_lib_sources, new_env, static=True)
shared_objs = make_objs(cc_lib_sources, new_env, static=False)
static_objs += [ swig_env.StaticObject(s) for s in cc_swig_sources ]
shared_objs += [ swig_env.SharedObject(s) for s in cc_swig_sources ]
# First make a library of everything but main() so other programs can
# link against m5.
static_lib = new_env.StaticLibrary(libname, static_objs + static_objs)
shared_lib = new_env.SharedLibrary(libname, shared_objs + shared_objs)
for target, sources in unit_tests:
objs = [ new_env.StaticObject(s) for s in sources ]
new_env.Program("unittest/%s.%s" % (target, label), objs + static_lib)
# Now link a stub with main() and the static library.
objects = [new_env.Object(s) for s in cc_bin_sources] + static_lib
if strip:
unstripped_exe = exename + '.unstripped'
new_env.Program(unstripped_exe, objects)
if sys.platform == 'sunos5':
cmd = 'cp $SOURCE $TARGET; strip $TARGET'
else:
cmd = 'strip $SOURCE -o $TARGET'
targets = new_env.Command(exename, unstripped_exe, cmd)
else:
targets = new_env.Program(exename, objects)
new_env.M5Binary = targets[0]
envList.append(new_env)
# Debug binary
ccflags = {}
if env['GCC']:
if sys.platform == 'sunos5':
ccflags['debug'] = '-gstabs+'
else:
ccflags['debug'] = '-ggdb3'
ccflags['opt'] = '-g -O3'
ccflags['fast'] = '-O3'
ccflags['prof'] = '-O3 -g -pg'
elif env['SUNCC']:
ccflags['debug'] = '-g0'
ccflags['opt'] = '-g -O'
ccflags['fast'] = '-fast'
ccflags['prof'] = '-fast -g -pg'
elif env['ICC']:
ccflags['debug'] = '-g -O0'
ccflags['opt'] = '-g -O'
ccflags['fast'] = '-fast'
ccflags['prof'] = '-fast -g -pg'
else:
print 'Unknown compiler, please fix compiler options'
Exit(1)
makeEnv('debug', '.do',
CCFLAGS = Split(ccflags['debug']),
CPPDEFINES = ['DEBUG', 'TRACING_ON=1'])
# Optimized binary
makeEnv('opt', '.o',
CCFLAGS = Split(ccflags['opt']),
CPPDEFINES = ['TRACING_ON=1'])
# "Fast" binary
makeEnv('fast', '.fo', strip = True,
CCFLAGS = Split(ccflags['fast']),
CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'])
# Profiled binary
makeEnv('prof', '.po',
CCFLAGS = Split(ccflags['prof']),
CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
LINKFLAGS = '-pg')
Return('envList')
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