1#!/usr/bin/env python 2 3# Copyright (c) 2013-2014 ARM Limited 4# All rights reserved 5# 6# The license below extends only to copyright in the software and shall 7# not be construed as granting a license to any other intellectual 8# property including but not limited to intellectual property relating --- 21 unchanged lines hidden (view full) --- 30# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 31# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 32# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 33# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 34# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 35# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 36# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 37# |
38# Authors: Andreas Hansson |
39 40# This script is used to dump protobuf packet traces to ASCII 41# format. It assumes that protoc has been executed and already 42# generated the Python package for the packet messages. This can 43# be done manually using: 44# protoc --python_out=. --proto_path=src/proto src/proto/packet.proto 45# 46# The ASCII trace format uses one line per request on the format cmd, 47# addr, size, tick,flags. For example: 48# r,128,64,4000,0 49# w,232123,64,500000,0 50 |
51import protolib |
52import sys 53 54# Import the packet proto definitions. If they are not found, attempt 55# to generate them automatically. This assumes that the script is 56# executed from the gem5 root. 57try: 58 import packet_pb2 59except: --- 10 unchanged lines hidden (view full) --- 70 print "Please install Python protobuf module" 71 exit(-1) 72 73 import packet_pb2 74 else: 75 print "Failed to import packet proto definitions" 76 exit(-1) 77 |
78def main(): 79 if len(sys.argv) != 3: 80 print "Usage: ", sys.argv[0], " <protobuf input> <ASCII output>" 81 exit(-1) 82 83 try: 84 proto_in = open(sys.argv[1], 'rb') 85 except IOError: --- 12 unchanged lines hidden (view full) --- 98 if magic_number != "gem5": 99 print "Unrecognized file" 100 exit(-1) 101 102 print "Parsing packet header" 103 104 # Add the packet header 105 header = packet_pb2.PacketHeader() |
106 protolib.decodeMessage(proto_in, header) |
107 108 print "Object id:", header.obj_id 109 print "Tick frequency:", header.tick_freq 110 111 print "Parsing packets" 112 113 num_packets = 0 |
114 packet = packet_pb2.Packet() 115 116 # Decode the packet messages until we hit the end of the file |
117 while protolib.decodeMessage(proto_in, packet): |
118 num_packets += 1 119 # ReadReq is 1 and WriteReq is 4 in src/mem/packet.hh Command enum 120 cmd = 'r' if packet.cmd == 1 else ('w' if packet.cmd == 4 else 'u') |
121 if packet.HasField('pkt_id'): 122 ascii_out.write('%s,' % (packet.pkt_id)) |
123 if packet.HasField('flags'): |
124 ascii_out.write('%s,%s,%s,%s,%s\n' % (cmd, packet.addr, packet.size, 125 packet.flags, packet.tick)) 126 else: 127 ascii_out.write('%s,%s,%s,%s\n' % (cmd, packet.addr, packet.size, |
128 packet.tick)) 129 130 print "Parsed packets:", num_packets |
131 132 # We're done 133 ascii_out.close() 134 proto_in.close() 135 136if __name__ == "__main__": 137 main() |