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#!/usr/bin/env python2.7
# Copyright (c) 2013 - 2015 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.
#
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# 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 Google Inc. 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: Radhika Jagtap
#
# This script is used to dump protobuf traces of the instruction dependency
# graph to ASCII format.
#
# The ASCII trace format uses one line per instruction with the format
# instruction sequence number, (optional) pc, (optional) weight, type
# (optional) flags, (optional) phys addr, (optional) size, comp delay,
# (repeated) order dependencies comma-separated, and (repeated) register
# dependencies comma-separated.
#
# examples:
# seq_num,[pc],[weight,]type,[p_addr,size,flags,]comp_delay:[rob_dep]:
# [reg_dep]
# 1,35652,1,COMP,8500::
# 2,35656,1,COMP,0:,1:
# 3,35660,1,LOAD,1748752,4,74,500:,2:
# 4,35660,1,COMP,0:,3:
# 5,35664,1,COMP,3000::,4
# 6,35666,1,STORE,1748752,4,74,1000:,3:,4,5
# 7,35666,1,COMP,3000::,4
# 8,35670,1,STORE,1748748,4,74,0:,6,3:,7
# 9,35670,1,COMP,500::,7
import protolib
import sys
# Import the packet proto definitions. If they are not found, attempt
# to generate them automatically. This assumes that the script is
# executed from the gem5 root.
try:
import inst_dep_record_pb2
except:
print "Did not find proto definition, attempting to generate"
from subprocess import call
error = call(['protoc', '--python_out=util', '--proto_path=src/proto',
'src/proto/inst_dep_record.proto'])
if not error:
import inst_dep_record_pb2
print "Generated proto definitions for instruction dependency record"
else:
print "Failed to import 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 on 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"
exit(-1)
print "Parsing packet header"
# Add the packet header
header = inst_dep_record_pb2.InstDepRecordHeader()
protolib.decodeMessage(proto_in, header)
print "Object id:", header.obj_id
print "Tick frequency:", header.tick_freq
print "Parsing packets"
print "Creating enum value,name lookup from proto"
enumNames = {}
desc = inst_dep_record_pb2.InstDepRecord.DESCRIPTOR
for namestr, valdesc in desc.enum_values_by_name.items():
print '\t', valdesc.number, namestr
enumNames[valdesc.number] = namestr
num_packets = 0
num_regdeps = 0
num_robdeps = 0
packet = inst_dep_record_pb2.InstDepRecord()
# Decode the packet messages until we hit the end of the file
while protolib.decodeMessage(proto_in, packet):
num_packets += 1
# Write to file the seq num
ascii_out.write('%s' % (packet.seq_num))
# Write to file the pc of the instruction, default is 0
if packet.HasField('pc'):
ascii_out.write(',%s' % (packet.pc))
else:
ascii_out.write(',0')
# Write to file the weight, default is 1
if packet.HasField('weight'):
ascii_out.write(',%s' % (packet.weight))
else:
ascii_out.write(',1')
# Write to file the type of the record
try:
ascii_out.write(',%s' % enumNames[packet.type])
except KeyError:
print "Seq. num", packet.seq_num, "has unsupported type", \
packet.type
exit(-1)
# Write to file if it has the optional fields physical addr, size,
# flags
if packet.HasField('p_addr'):
ascii_out.write(',%s' % (packet.p_addr))
if packet.HasField('size'):
ascii_out.write(',%s' % (packet.size))
if packet.HasField('flags'):
ascii_out.write(',%s' % (packet.flags))
# Write to file the comp delay
ascii_out.write(',%s' % (packet.comp_delay))
# Write to file the repeated field order dependency
ascii_out.write(':')
if packet.rob_dep:
num_robdeps += 1
for dep in packet.rob_dep:
ascii_out.write(',%s' % dep)
# Write to file the repeated field register dependency
ascii_out.write(':')
if packet.reg_dep:
num_regdeps += 1 # No. of packets with atleast 1 register dependency
for dep in packet.reg_dep:
ascii_out.write(',%s' % dep)
# New line
ascii_out.write('\n')
print "Parsed packets:", num_packets
print "Packets with at least 1 reg dep:", num_regdeps
print "Packets with at least 1 rob dep:", num_robdeps
# We're done
ascii_out.close()
proto_in.close()
if __name__ == "__main__":
main()
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