#!/bin/sh
|
# SPDX-License-Identifier: GPL-2.0
|
# description: Kprobe event auto/manual naming
|
# requires: kprobe_events
|
|
:;: "Add an event on function without name" ;:
|
|
FUNC=`grep " [tT] .*vfs_read$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "`
|
[ "x" != "x$FUNC" ] || exit_unresolved
|
echo "p $FUNC" > kprobe_events
|
PROBE_NAME=`echo $FUNC | tr ".:" "_"`
|
test -d events/kprobes/p_${PROBE_NAME}_0 || exit_failure
|
|
:;: "Add an event on function with new name" ;:
|
|
echo "p:event1 $FUNC" > kprobe_events
|
test -d events/kprobes/event1 || exit_failure
|
|
:;: "Add an event on function with new name and group" ;:
|
|
echo "p:kprobes2/event2 $FUNC" > kprobe_events
|
test -d events/kprobes2/event2 || exit_failure
|
|
:;: "Add an event on dot function without name" ;:
|
|
find_dot_func() {
|
if [ ! -f available_filter_functions ]; then
|
grep -m 10 " [tT] .*\.isra\..*$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "
|
return;
|
fi
|
|
grep " [tT] .*\.isra\..*" /proc/kallsyms | cut -f 3 -d " " | while read f; do
|
if grep -s $f available_filter_functions; then
|
echo $f
|
break
|
fi
|
done
|
}
|
|
FUNC=`find_dot_func | tail -n 1`
|
[ "x" != "x$FUNC" ] || exit_unresolved
|
echo "p $FUNC" > kprobe_events
|
EVENT=`grep $FUNC kprobe_events | cut -f 1 -d " " | cut -f 2 -d:`
|
[ "x" != "x$EVENT" ] || exit_failure
|
test -d events/$EVENT || exit_failure
|
