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# -*- mode:python -*-
# Copyright (c) 2006 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: Steve Reinhardt
import os
import os.path
# Import build environment variable from SConstruct.
Import('env')
#################################################################
#
# Generate StaticInst execute() method signatures.
#
# There must be one signature for each CPU model compiled in.
# Since the set of compiled-in models is flexible, we generate a
# header containing the appropriate set of signatures on the fly.
#
#################################################################
# CPU model-specific data is contained in cpu_models.py
# Convert to SCons File node to get path handling
models_db = File('cpu_models.py')
# slurp in contents of file
execfile(models_db.srcnode().abspath)
# Template for execute() signature.
exec_sig_template = '''
virtual Fault execute(%s *xc, Trace::InstRecord *traceData) const = 0;
virtual Fault initiateAcc(%s *xc, Trace::InstRecord *traceData) const
{ panic("initiateAcc not defined!"); };
virtual Fault completeAcc(Packet *pkt, %s *xc,
Trace::InstRecord *traceData) const
{ panic("completeAcc not defined!"); };
'''
mem_ini_sig_template = '''
virtual Fault initiateAcc(%s *xc, Trace::InstRecord *traceData) const { panic("Not defined!"); };
'''
mem_comp_sig_template = '''
virtual Fault completeAcc(uint8_t *data, %s *xc, Trace::InstRecord *traceData) const { panic("Not defined!"); return NoFault; };
'''
# Generate a temporary CPU list, including the CheckerCPU if
# it's enabled. This isn't used for anything else other than StaticInst
# headers.
temp_cpu_list = env['CPU_MODELS']
if env['USE_CHECKER']:
temp_cpu_list.append('CheckerCPU')
# Generate header.
def gen_cpu_exec_signatures(target, source, env):
f = open(str(target[0]), 'w')
print >> f, '''
#ifndef __CPU_STATIC_INST_EXEC_SIGS_HH__
#define __CPU_STATIC_INST_EXEC_SIGS_HH__
'''
for cpu in temp_cpu_list:
xc_type = CpuModel.dict[cpu].strings['CPU_exec_context']
print >> f, exec_sig_template % (xc_type, xc_type, xc_type)
print >> f, '''
#endif // __CPU_STATIC_INST_EXEC_SIGS_HH__
'''
# Generate string that gets printed when header is rebuilt
def gen_sigs_string(target, source, env):
return "Generating static_inst_exec_sigs.hh: " \
+ ', '.join(temp_cpu_list)
# Add command to generate header to environment.
env.Command('static_inst_exec_sigs.hh', models_db,
Action(gen_cpu_exec_signatures, gen_sigs_string,
varlist = temp_cpu_list))
env.Depends('static_inst_exec_sigs.hh', Value(env['USE_CHECKER']))
env.Depends('static_inst_exec_sigs.hh', Value(env['CPU_MODELS']))
# List of suppported CPUs by the Checker. Errors out if USE_CHECKER=True
# and one of these are not being used.
CheckerSupportedCPUList = ['O3CPU', 'OzoneCPU']
#################################################################
#
# Include CPU-model-specific files based on set of models
# specified in CPU_MODELS build option.
#
#################################################################
sources = []
need_simple_base = False
if 'AtomicSimpleCPU' in env['CPU_MODELS']:
need_simple_base = True
sources += Split('simple/atomic.cc')
if 'TimingSimpleCPU' in env['CPU_MODELS']:
need_simple_base = True
sources += Split('simple/timing.cc')
if need_simple_base:
sources += Split('simple/base.cc')
if 'FastCPU' in env['CPU_MODELS']:
sources += Split('fast/cpu.cc')
need_bp_unit = False
if 'O3CPU' in env['CPU_MODELS']:
need_bp_unit = True
sources += SConscript('o3/SConscript', exports = 'env')
sources += Split('''
o3/base_dyn_inst.cc
o3/bpred_unit.cc
o3/commit.cc
o3/decode.cc
o3/fetch.cc
o3/free_list.cc
o3/fu_pool.cc
o3/cpu.cc
o3/iew.cc
o3/inst_queue.cc
o3/lsq_unit.cc
o3/lsq.cc
o3/mem_dep_unit.cc
o3/rename.cc
o3/rename_map.cc
o3/rob.cc
o3/scoreboard.cc
o3/store_set.cc
''')
if env['USE_CHECKER']:
sources += Split('o3/checker_builder.cc')
if 'OzoneCPU' in env['CPU_MODELS']:
need_bp_unit = True
sources += Split('''
ozone/base_dyn_inst.cc
ozone/bpred_unit.cc
ozone/cpu.cc
ozone/cpu_builder.cc
ozone/dyn_inst.cc
ozone/front_end.cc
ozone/lw_back_end.cc
ozone/lw_lsq.cc
ozone/rename_table.cc
''')
if env['USE_CHECKER']:
sources += Split('ozone/checker_builder.cc')
if need_bp_unit:
sources += Split('''
o3/2bit_local_pred.cc
o3/btb.cc
o3/ras.cc
o3/tournament_pred.cc
''')
if env['USE_CHECKER']:
sources += Split('checker/cpu.cc')
checker_supports = False
for i in CheckerSupportedCPUList:
if i in env['CPU_MODELS']:
checker_supports = True
if not checker_supports:
print "Checker only supports CPU models",
for i in CheckerSupportedCPUList:
print i,
print ", please set USE_CHECKER=False or use one of those CPU models"
Exit(1)
# FullCPU sources are included from src/SConscript since they're not
# below this point in the file hierarchy.
# Convert file names to SCons File objects. This takes care of the
# path relative to the top of the directory tree.
sources = [File(s) for s in sources]
Return('sources')
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