1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
#!/usr/bin/env python
# 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()
|
