1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3# description: Create/delete multiprobe on kprobe event
4
5[ -f kprobe_events ] || exit_unsupported
6
7grep -q "Create/append/" README || exit_unsupported
8
9# Choose 2 symbols for target
10SYM1=_do_fork
11SYM2=do_exit
12EVENT_NAME=kprobes/testevent
13
14DEF1="p:$EVENT_NAME $SYM1"
15DEF2="p:$EVENT_NAME $SYM2"
16
17:;: "Define an event which has 2 probes" ;:
18echo $DEF1 >> kprobe_events
19echo $DEF2 >> kprobe_events
20cat kprobe_events | grep "$DEF1"
21cat kprobe_events | grep "$DEF2"
22
23:;: "Remove the event by name (should remove both)" ;:
24echo "-:$EVENT_NAME" >> kprobe_events
25test `cat kprobe_events | wc -l` -eq 0
26
27:;: "Remove just 1 event" ;:
28echo $DEF1 >> kprobe_events
29echo $DEF2 >> kprobe_events
30echo "-:$EVENT_NAME $SYM1" >> kprobe_events
31! cat kprobe_events | grep "$DEF1"
32cat kprobe_events | grep "$DEF2"
33
34:;: "Appending different type must fail" ;:
35! echo "$DEF1 \$stack" >> kprobe_events
36