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# -*- tab-width: 4 -*- ;; Emacs
# vi: set filetype=sh tabstop=8 shiftwidth=8 noexpandtab :: Vi/ViM
############################################################ IDENT(1)
#
# $Title: dwatch(8) module for dtrace_proc(4) activity $
# $Copyright: 2014-2018 Devin Teske. All rights reserved. $
# $FreeBSD$
#
############################################################ DESCRIPTION
#
# Display process activity
#
############################################################ PROBE
case "$PROFILE" in
proc)
: ${PROBE:=$( echo \
proc:::create, \
proc:::exec, \
proc:::exec-failure, \
proc:::exec-success, \
proc:::exit, \
proc:::signal-clear, \
proc:::signal-discard, \
proc:::signal-send )}
;;
proc-signal)
: ${PROBE:=$( echo \
proc:::signal-clear, \
proc:::signal-discard, \
proc:::signal-send )}
;;
proc-status)
: ${PROBE:=$( echo \
proc:::create, \
proc:::exec, \
proc:::exec-failure, \
proc:::exec-success, \
proc:::exit )}
;;
*)
: ${PROBE:=proc:::${PROFILE#proc-}}
esac
############################################################ ACTIONS
exec 9<<EOF
this int sig;
this pid_t pid;
this string details;
this string exec_arg0;
inline string probealias[string name] =
name == "create" ? "FORK" :
name == "exec" ? "EXEC" :
name == "exec-failure" ? "FAIL" :
name == "exec-success" ? "INIT" :
name == "exit" ? "EXIT" :
name == "signal-clear" ? "CLEAR" :
name == "signal-discard" ? "DISCARD" :
name == "signal-send" ? "SEND" :
name;
$PROBE /* probe ID $ID */
{${TRACE:+
printf("<$ID>");}
this->details = "";
}
proc:::create /* probe ID $(( $ID + 1 )) */
{${TRACE:+
printf("<$(( $ID + 1 ))>");
}
$( pproc -P _create "(struct proc *)args[0]" )
/* details = "pid <pid of args[0]> -- <proc args of args[0]>" */
this->details = strjoin(
strjoin("pid ", lltostr(this->pid_create)),
strjoin(" -- ", this->args_create));
}
proc:::exec /* probe ID $(( $ID + 2 )) */
{${TRACE:+
printf("<$(( $ID + 2 ))");}
this->details = this->exec_arg0 = stringof(arg0);
}
proc:::exec-failure /* probe ID $(( $ID + 3 )) */
{${TRACE:+
printf("<$(( $ID + 3 ))>");
}
/* details = "<arg0 from proc:::exec>: <strerror of arg0> (<arg0>)" */
this->details = strjoin(
strjoin(this->exec_arg0, ": "),
strjoin(strerror[(int)arg0],
strjoin(" (", strjoin(lltostr((int)arg0), ")"))));
}
proc:::exec-success /* probe ID $(( $ID + 4 )) */
{${TRACE:+
printf("<$(( $ID + 4 ))>");}
this->details = this->args0;
}
proc:::exit /* probe ID $(( $ID + 5 )) */
{${TRACE:+
printf("<$(( $ID + 5 ))>");}
this->details = child_signal_string[(int)arg0];
}
proc:::signal-clear /* probe ID $(( $ID + 6 )) */
{${TRACE:+
printf("<$(( $ID + 6 ))>");}
this->pid = (pid_t)((ksiginfo_t *)args[1])->ksi_info.si_pid;
this->sig = (int)arg0;
}
proc:::signal-discard, proc:::signal-send /* probe ID $(( $ID + 7 )) */
{${TRACE:+
printf("<$(( $ID + 7 ))>");}
this->pid = (pid_t)((struct proc *)args[1])->p_pid;
this->sig = (int)arg2;
}
proc:::signal-clear,
proc:::signal-discard,
proc:::signal-send /* probe ID $(( $ID + 8 )) */
{${TRACE:+
printf("<$(( $ID + 8 ))>");
}
/* details = "<signal>[<num>] pid <pid>" */
this->details = strjoin(strjoin(signal_string[this->sig], "["),
strjoin(strjoin(lltostr(this->sig), "] pid "),
lltostr(this->pid)));
}
proc:::signal-send, proc:::signal-discard /* probe ID $(( $ID + 9 )) */
{${TRACE:+
printf("<$(( $ID + 9 ))>");
}
$( pproc -P _signal "(struct proc *)args[1]" )
this->details = strjoin(this->details,
strjoin(" -- ", this->args_signal));
}
EOF
ACTIONS=$( cat <&9 )
ID=$(( $ID + 10 ))
############################################################ EVENT DETAILS
if [ ! "$CUSTOM_DETAILS" ]; then
exec 9<<EOF
/*
* Print details
*/
printf("%s %s", probealias[probename], this->details);
EOF
EVENT_DETAILS=$( cat <&9 )
fi
################################################################################
# END
################################################################################
|
