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# Simple test script
#
# Alpha: "m5 test.py"
# MIPS: "m5 test.py -a Mips -c hello_mips"
import os, optparse, sys
import m5
from m5.objects import *
from FullO3Config import *
# parse command-line arguments
parser = optparse.OptionParser(option_list=m5.standardOptions)
parser.add_option("-c", "--cmd", default="hello",
help="The binary to run in syscall emulation mode.")
parser.add_option("-o", "--options", default="",
help="The options to pass to the binary, use \" \" around the entire\
string.")
parser.add_option("-i", "--input", default="",
help="A file of input to give to the binary.")
parser.add_option("-t", "--timing", action="store_true",
help="Use simple timing CPU.")
parser.add_option("-d", "--detailed", action="store_true",
help="Use detailed CPU.")
parser.add_option("-m", "--maxtick", type="int",
help="Set the maximum number of ticks to run for")
(options, args) = parser.parse_args()
m5.setStandardOptions(options)
if args:
print "Error: script doesn't take any positional arguments"
sys.exit(1)
# build configuration
this_dir = os.path.dirname(__file__)
process = LiveProcess()
process.executable = os.path.join(this_dir, options.cmd)
process.cmd = options.cmd + " " + options.options
if options.input != "":
process.input = options.input
magicbus = Bus()
mem = PhysicalMemory()
if options.timing and options.detailed:
print "Error: you may only specify one cpu model";
sys.exit(1)
if options.timing:
cpu = TimingSimpleCPU()
elif options.detailed:
#check for SMT workload
workloads = options.cmd.split(';')
if len(workloads) > 1:
process = []
smt_idx = 0
inputs = []
if options.input != "":
inputs = options.input.split(';')
for wrkld in workloads:
smt_process = LiveProcess()
smt_process.executable = os.path.join(this_dir, wrkld)
smt_process.cmd = wrkld + " " + options.options
if inputs and inputs[smt_idx]:
smt_process.input = inputs[smt_idx]
process += [smt_process, ]
smt_idx += 1
cpu = DetailedO3CPU()
else:
cpu = AtomicSimpleCPU()
cpu.workload = process
cpu.mem = magicbus
cpu.icache_port=magicbus.port
cpu.dcache_port=magicbus.port
system = System(physmem = mem, cpu = cpu)
mem.port = magicbus.port
root = Root(system = system)
# instantiate configuration
m5.instantiate(root)
# simulate until program terminates
if options.maxtick:
exit_event = m5.simulate(options.maxtick)
else:
exit_event = m5.simulate()
print 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause()
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