lbr_filter

#!/usr/bin/env python
# Copyright (c) 2020-2024, Intel Corporation
# Author: Ahmad Yasin
#
#   This program is free software; you can redistribute it and/or modify it under the terms and conditions of the
# GNU General Public License, version 2, as published by the Free Software Foundation.
#   This program is distributed in the hope 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.

# A tool for filtering LBR stream on certain IPs

from __future__ import print_function
__author__ = 'ayasin'

import common as C
from lbr.lbr import read_sample
from lbr.common_lbr import print_sample
from sys import stdout

# usage: perf script -F +brstackinsn [--xed] | ./lbr_stats ip[s]-of-sample event
filter = '%x' % int(C.arg(1), 16) # asserts in hexa
ev = C.arg(2)

while True:
  sample = read_sample(ip_filter=filter, event=ev, min_lines=2, indirect_en=False)
  if not sample: break
  print_sample(sample, 0, stdout)