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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: Create/delete multiprobe on kprobe event
# requires: kprobe_events "Create/append/":README
# Choose 2 symbols for target
SYM1=$FUNCTION_FORK
SYM2=do_exit
EVENT_NAME=kprobes/testevent
DEF1="p:$EVENT_NAME $SYM1"
DEF2="p:$EVENT_NAME $SYM2"
:;: "Define an event which has 2 probes" ;:
echo $DEF1 >> kprobe_events
echo $DEF2 >> kprobe_events
cat kprobe_events | grep "$DEF1"
cat kprobe_events | grep "$DEF2"
:;: "Remove the event by name (should remove both)" ;:
echo "-:$EVENT_NAME" >> kprobe_events
test `cat kprobe_events | wc -l` -eq 0
:;: "Remove just 1 event" ;:
echo $DEF1 >> kprobe_events
echo $DEF2 >> kprobe_events
echo "-:$EVENT_NAME $SYM1" >> kprobe_events
! cat kprobe_events | grep "$DEF1"
cat kprobe_events | grep "$DEF2"
:;: "Appending different type must fail" ;:
! echo "$DEF1 \$stack" >> kprobe_events
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