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#!/usr/bin/env python2
# Copyright (c) 2013-2014 ARM Limited
# All rights reserved
#
# The license below extends only to copyright in the software and shall
# not be construed as granting a license to any other intellectual
# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder. You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# 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: Ali Saidi
# Andreas Hansson
# This script is used to dump protobuf instruction traces to ASCII
# format. It assumes that protoc has been executed and already
# generated the Python package for the inst messages. This can
# be done manually using:
# protoc --python_out=. inst.proto
# The ASCII trace format uses one line per request.
import protolib
import sys
# Import the packet proto definitions
try:
import inst_pb2
except:
print "Did not find protobuf inst definitions, attempting to generate"
from subprocess import call
error = call(['protoc', '--python_out=util', '--proto_path=src/proto',
'src/proto/inst.proto'])
if not error:
print "Generated inst proto definitions"
try:
import google.protobuf
except:
print "Please install Python protobuf module"
exit(-1)
import inst_pb2
else:
print "Failed to import inst proto definitions"
exit(-1)
def main():
if len(sys.argv) != 3:
print "Usage: ", sys.argv[0], " <protobuf input> <ASCII output>"
exit(-1)
# Open the file in read mode
proto_in = protolib.openFileRd(sys.argv[1])
try:
ascii_out = open(sys.argv[2], 'w')
except IOError:
print "Failed to open ", sys.argv[2], " for writing"
exit(-1)
# Read the magic number in 4-byte Little Endian
magic_number = proto_in.read(4)
if magic_number != "gem5":
print "Unrecognized file", sys.argv[1]
exit(-1)
print "Parsing instruction header"
# Add the packet header
header = inst_pb2.InstHeader()
protolib.decodeMessage(proto_in, header)
print "Object id:", header.obj_id
print "Tick frequency:", header.tick_freq
print "Memory addresses included:", header.has_mem
if header.ver != 0:
print "Warning: file version newer than decoder:", header.ver
print "This decoder may not understand how to decode this file"
print "Parsing instructions"
num_insts = 0
inst = inst_pb2.Inst()
# Decode the inst messages until we hit the end of the file
optional_fields = ('tick', 'type', 'inst_flags', 'addr', 'size', 'mem_flags')
while protolib.decodeMessage(proto_in, inst):
# If we have a tick use it, otherwise count instructions
if inst.HasField('tick'):
tick = inst.tick
else:
tick = num_insts
if inst.HasField('nodeid'):
node_id = inst.nodeid
else:
node_id = 0;
if inst.HasField('cpuid'):
cpu_id = inst.cpuid
else:
cpu_id = 0;
ascii_out.write('%-20d: (%03d/%03d) %#010x @ %#016x ' % (tick, node_id, cpu_id,
inst.inst, inst.pc))
if inst.HasField('type'):
ascii_out.write(' : %10s' % inst_pb2._INST_INSTTYPE.values_by_number[inst.type].name)
for mem_acc in inst.mem_access:
ascii_out.write(" %#x-%#x;" % (mem_acc.addr, mem_acc.addr + mem_acc.size))
ascii_out.write('\n')
num_insts += 1
print "Parsed instructions:", num_insts
# We're done
ascii_out.close()
proto_in.close()
if __name__ == "__main__":
main()
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