3080bbcc36
This patch replaces the booleans that specified the elastic trace record type with an enum type. The source of change is the proto message for elastic trace where the enum is introduced. The struct definitions in the elastic trace probe listener as well as the Trace CPU replace the boleans with the proto message enum. The patch does not impact functionality, but traces are not compatible with previous version. This is preparation for adding new types of records in subsequent patches.
207 lines
8.4 KiB
Python
Executable file
207 lines
8.4 KiB
Python
Executable file
#!/usr/bin/env python
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# Copyright (c) 2015 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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# Copyright 2008 Google Inc. All rights reserved.
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# http://code.google.com/p/protobuf/
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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:
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#
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# * 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
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. 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: Radhika Jagtap
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#
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# This script is used to dump ASCII traces of the instruction dependency
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# graph to protobuf format.
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#
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# The ASCII trace format uses one line per instruction with the format
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# instruction sequence number, (optional) pc, (optional) weight, type,
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# (optional) flags, (optional) addr, (optional) size, comp delay,
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# (repeated) order dependencies comma-separated, and (repeated) register
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# dependencies comma-separated.
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#
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# examples:
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# seq_num,[pc],[weight,]type,[address,size,flags,]comp_delay:[rob_dep]:
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# [reg_dep]
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# 1,35652,1,COMP,8500::
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# 2,35656,1,COMP,0:,1:
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# 3,35660,1,LOAD,1748752,4,74,500:,2:
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# 4,35660,1,COMP,0:,3:
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# 5,35664,1,COMP,3000::,4
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# 6,35666,1,STORE,1748752,4,74,1000:,3:,4,5
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# 7,35666,1,COMP,3000::,4
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# 8,35670,1,STORE,1748748,4,74,0:,6,3:,7
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# 9,35670,1,COMP,500::,7
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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 inst_dep_record_pb2
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except:
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print "Did not find proto definition, 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/inst_dep_record.proto'])
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if not error:
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import inst_dep_record_pb2
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print "Generated proto definitions for instruction dependency record"
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else:
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print "Failed to import proto definitions"
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exit(-1)
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DepRecord = inst_dep_record_pb2.InstDepRecord
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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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# Open the file in write mode
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proto_out = open(sys.argv[2], 'wb')
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# Open the file in read mode
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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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# 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 = inst_dep_record_pb2.InstDepRecordHeader()
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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 = 1000000000
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header.window_size = 120
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protolib.encodeMessage(proto_out, header)
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print "Creating enum name,value lookup from proto"
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enumValues = {}
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for namestr, valdesc in DepRecord.DESCRIPTOR.enum_values_by_name.items():
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print '\t', namestr, valdesc.number
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enumValues[namestr] = valdesc.number
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num_records = 0
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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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inst_info_str, rob_dep_str, reg_dep_str = (line.strip()).split(':')
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inst_info_list = inst_info_str.split(',')
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dep_record = DepRecord()
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dep_record.seq_num = long(inst_info_list[0])
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dep_record.pc = long(inst_info_list[1])
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dep_record.weight = long(inst_info_list[2])
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# If the type is not one of the enum values, it should be a key error
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try:
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dep_record.type = enumValues[inst_info_list[3]]
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except KeyError:
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print "Seq. num", dep_record.seq_num, "has unsupported type", \
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inst_info_list[3]
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exit(-1)
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if dep_record.type == DepRecord.INVALID:
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print "Seq. num", dep_record.seq_num, "is of INVALID type"
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exit(-1)
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# If the instruction is a load or store record the addr, size flags
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# in addition to recording the computation delay
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if dep_record.type in [DepRecord.LOAD, DepRecord.STORE]:
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addr, size, flags, comp_delay = inst_info_list[4:8]
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dep_record.addr = long(addr)
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dep_record.size = int(size)
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dep_record.flags = int(flags)
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dep_record.comp_delay = long(comp_delay)
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else:
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comp_delay = inst_info_list[4]
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dep_record.comp_delay = long(comp_delay)
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# Parse the register and order dependencies both of which are
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# repeated fields. An empty list is valid.
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rob_deps = rob_dep_str.strip().split(',')
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for a_dep in rob_deps:
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# if the string is empty, split(',') returns 1 item: ''
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# if the string is ",4", split(',') returns 2 items: '', '4'
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# long('') gives error, so check if the item is non-empty
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if a_dep:
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dep_record.rob_dep.append(long(a_dep))
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reg_deps = reg_dep_str.split(',')
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for a_dep in reg_deps:
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if a_dep:
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dep_record.reg_dep.append(long(a_dep))
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protolib.encodeMessage(proto_out, dep_record)
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num_records += 1
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print "Converted", num_records, "records."
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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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