1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3# description: Create/delete multiprobe on kprobe event
4# requires: kprobe_events "Create/append/":README
5
6# Choose 2 symbols for target
7SYM1=$FUNCTION_FORK
8SYM2=do_exit
9EVENT_NAME=kprobes/testevent
10
11DEF1="p:$EVENT_NAME $SYM1"
12DEF2="p:$EVENT_NAME $SYM2"
13
14:;: "Define an event which has 2 probes" ;:
15echo $DEF1 >> kprobe_events
16echo $DEF2 >> kprobe_events
17cat kprobe_events | grep "$DEF1"
18cat kprobe_events | grep "$DEF2"
19
20:;: "Remove the event by name (should remove both)" ;:
21echo "-:$EVENT_NAME" >> kprobe_events
22test `cat kprobe_events | wc -l` -eq 0
23
24:;: "Remove just 1 event" ;:
25echo $DEF1 >> kprobe_events
26echo $DEF2 >> kprobe_events
27echo "-:$EVENT_NAME $SYM1" >> kprobe_events
28! cat kprobe_events | grep "$DEF1"
29cat kprobe_events | grep "$DEF2"
30
31:;: "Appending different type must fail" ;:
32! echo "$DEF1 \$stack" >> kprobe_events
33