PIKApp/tools/performance-log-resolve.py

56 lines
1.7 KiB
Python
Raw Normal View History

2023-09-26 00:35:21 +02:00
#!/usr/bin/env python3
"""
performance-log-resolve.py -- Resolve PIKA performance log backtrace symbols
Copyright (C) 2018 Ell
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Usage: performance-log-resolve.py < infile > outfile
"""
from xml.etree import ElementTree
import sys
empty_element = ElementTree.Element ("")
# Read performance log from STDIN
log = ElementTree.fromstring (sys.stdin.buffer.read ())
address_map = log.find ("address-map")
if address_map:
# Create address dictionary
addresses = {}
for address in address_map.iterfind ("address"):
addresses[address.get ("value")] = list (address)
# Resolve addresses in backtraces
for sample in (log.find ("samples") or empty_element).iterfind ("sample"):
for thread in sample.find ("backtrace") or ():
for frame in thread:
address = addresses.get (frame.get ("address"))
if address:
frame.text = "\n"
frame.extend (address)
# Remove address map
log.remove (address_map)
# Write performance log to STDOUT
sys.stdout.buffer.write (ElementTree.tostring (log))