#!/usr/bin/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.

#
# Track when a specific process ID receives a specific signal.  For example,
# when process ID 31994 receives a SIGKILL signal.
#
# Example command line: 
#
#   stap -x 31994 sigmon.stp SIGKILL
#
# Example output: 
#
#   SPID     SNAME            RPID  RNAME            SIGNUM SIGNAME
#   5609     bash             31994 find             9      SIGKILL 
#

probe begin
{
  printf("%-8s %-16s %-5s %-16s %6s %-16s\n",
         "SPID", "SNAME", "RPID", "RNAME", "SIGNUM", "SIGNAME")
}

probe signal.send 
{
  if (sig_name == @1 && sig_pid == target())
    printf("%-8d %-16s %-5d %-16s %-6d %-16s\n", 
      pid(), execname(), sig_pid, pid_name, sig, sig_name)
}