# Copyright (c) 2006 The Regents of The University of Michigan
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#
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# this software without specific prior written permission.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# Authors: Steve Reinhardt

# Simple test script
#
# "m5 test.py"

import m5
from m5.objects import *
import os, optparse, sys
m5.AddToPath('../common')
from FullO3Config import *

parser = optparse.OptionParser()

parser.add_option("-c", "--cmd",
                  default="../../tests/test-progs/hello/bin/alpha/linux/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("-d", "--detailed", action="store_true")
parser.add_option("-t", "--timing", action="store_true")
parser.add_option("-m", "--maxtick", type="int")

(options, args) = parser.parse_args()

if args:
    print "Error: script doesn't take any positional arguments"
    sys.exit(1)

process = LiveProcess()
process.executable = options.cmd
process.cmd = options.cmd + " " + options.options
if options.input != "":
    process.input = options.input

if 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 = 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


if options.timing:
    cpu = TimingSimpleCPU()
elif options.detailed:
    cpu = DetailedO3CPU()
else:
    cpu = AtomicSimpleCPU()

cpu.workload = process
cpu.cpu_id = 0

system = System(cpu = cpu,
                physmem = PhysicalMemory(),
                membus = Bus())
system.physmem.port = system.membus.port
system.cpu.connectMemPorts(system.membus)
system.cpu.mem = system.physmem

root = Root(system = system)

if options.timing or options.detailed:
    root.system.mem_mode = 'timing'

# 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()