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#! /usr/bin/env stap
# Copyright (C) 2006 IBM Corp.
#
# This file is part of systemtap, and is free software. You can
# redistribute it and/or modify it under the terms of the GNU General
# Public License (GPL); either version 2, or (at your option) any
# later version.
#
# Print signal counts by process IDs in descending order.
#
global sigcnt, pid2name, sig2name
probe begin {
print("Collecting data... Type Ctrl-C to exit and display results\n")
}
probe signal.send
{
rcv_pid = sig_pid
sigcnt[pid(), rcv_pid, sig] <<< 1
if (!(pid() in pid2name)) pid2name[pid()] = execname()
if (!(rcv_pid in pid2name)) pid2name[rcv_pid] = pid_name
if (!(sig in sig2name)) sig2name[sig] = sig_name
}
probe end
{
printf("%-8s %-16s %-5s %-16s %-16s %s\n",
"SPID", "SENDER", "RPID", "RECEIVER", "SIGNAME", "COUNT")
foreach ([snd_pid, rcv_pid, sig_num] in sigcnt-) {
printf("%-8d %-16s %-5d %-16s %-16s %d\n",
snd_pid, pid2name[snd_pid], rcv_pid, pid2name[rcv_pid],
sig2name[sig_num], @count(sigcnt[snd_pid, rcv_pid, sig_num]))
}
}
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