gem5/util/decode_inst_dep_trace.py
Jason Lowe-Power 87b9f0b87b misc: Update #!env calls for python to explicit version
In some newer Linux distributions, env python default to Python 3.0. This
patch explicitly uses "python2" instead of just "python" for all scripts
that use #!

Reported-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
2017-02-10 10:00:18 -05:00

217 lines
8.3 KiB
Python
Executable file

#!/usr/bin/env python2
# 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()