87b9f0b87b
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>
128 lines
4.9 KiB
Python
Executable file
128 lines
4.9 KiB
Python
Executable file
#!/usr/bin/env python2
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# Copyright (c) 2013-2014 ARM Limited
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# All rights reserved
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Andreas Hansson
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# This script is used to migrate ASCII packet traces to the protobuf
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# format currently used in gem5. It assumes that protoc has been
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# executed and already generated the Python package for the packet
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# messages. This can be done manually using:
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# protoc --python_out=. --proto_path=src/proto src/proto/packet.proto
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#
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# The ASCII trace format uses one line per request on the format cmd,
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# addr, size, tick. For example:
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# r,128,64,4000
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# w,232123,64,500000
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# This trace reads 64 bytes from decimal address 128 at tick 4000,
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# then writes 64 bytes to address 232123 at tick 500000.
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#
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# This script can of course also be used as a template to convert
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# other trace formats into the gem5 protobuf format
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import protolib
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import sys
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# Import the packet proto definitions. If they are not found, attempt
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# to generate them automatically. This assumes that the script is
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# executed from the gem5 root.
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try:
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import packet_pb2
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except:
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print "Did not find packet proto definitions, attempting to generate"
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from subprocess import call
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error = call(['protoc', '--python_out=util', '--proto_path=src/proto',
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'src/proto/packet.proto'])
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if not error:
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print "Generated packet proto definitions"
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try:
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import google.protobuf
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except:
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print "Please install the Python protobuf module"
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exit(-1)
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import packet_pb2
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else:
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print "Failed to import packet proto definitions"
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exit(-1)
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def main():
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if len(sys.argv) != 3:
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print "Usage: ", sys.argv[0], " <ASCII input> <protobuf output>"
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exit(-1)
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try:
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ascii_in = open(sys.argv[1], 'r')
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except IOError:
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print "Failed to open ", sys.argv[1], " for reading"
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exit(-1)
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try:
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proto_out = open(sys.argv[2], 'wb')
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except IOError:
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print "Failed to open ", sys.argv[2], " for writing"
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exit(-1)
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# Write the magic number in 4-byte Little Endian, similar to what
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# is done in src/proto/protoio.cc
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proto_out.write("gem5")
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# Add the packet header
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header = packet_pb2.PacketHeader()
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header.obj_id = "Converted ASCII trace " + sys.argv[1]
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# Assume the default tick rate
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header.tick_freq = 1000000000000
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protolib.encodeMessage(proto_out, header)
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# For each line in the ASCII trace, create a packet message and
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# write it to the encoded output
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for line in ascii_in:
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cmd, addr, size, tick = line.split(',')
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packet = packet_pb2.Packet()
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packet.tick = long(tick)
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# ReadReq is 1 and WriteReq is 4 in src/mem/packet.hh Command enum
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packet.cmd = 1 if cmd == 'r' else 4
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packet.addr = long(addr)
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packet.size = int(size)
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protolib.encodeMessage(proto_out, packet)
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# We're done
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ascii_in.close()
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proto_out.close()
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if __name__ == "__main__":
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main()
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