57 lines
1.6 KiB
Python
57 lines
1.6 KiB
Python
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# Copyright 2016 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import os
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import sys
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import json
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import re
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import argparse
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sys.path.append(os.environ['PERF_EXEC_PATH'] + \
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'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
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from perf_trace_context import *
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from Core import *
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def trace_begin():
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json_obj['eventCounts'] = {}
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prog = re.compile(r'0x[0-9a-fA-F]+')
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for phase in reversed(json_obj['phases']):
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if phase['name'] == "disassembly":
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for line in phase['data'].splitlines():
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result = re.match(prog, line)
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if result:
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known_addrs.add(result.group(0))
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def trace_end():
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print json.dumps(json_obj)
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def process_event(param_dict):
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addr = "0x%x" % int(param_dict['sample']['ip'])
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# Only count samples that belong to the function
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if addr not in known_addrs:
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return
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ev_name = param_dict['ev_name']
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if ev_name not in json_obj['eventCounts']:
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json_obj['eventCounts'][ev_name] = {}
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if addr not in json_obj['eventCounts'][ev_name]:
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json_obj['eventCounts'][ev_name][addr] = 0
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json_obj['eventCounts'][ev_name][addr] += 1
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(
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description="Perf script to merge profiling data with turbofan compiler "
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"traces.")
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parser.add_argument("file_name", metavar="JSON File",
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help="turbo trace json file.")
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args = parser.parse_args()
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with open(args.file_name, 'r') as json_file:
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json_obj = json.load(json_file)
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known_addrs = set()
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