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1#!/bin/sh2# SPDX-License-Identifier: GPL-2.03# description: Register/unregister many kprobe events4# requires: kprobe_events5 6# ftrace fentry skip size depends on the machine architecture.7# Currently HAVE_KPROBES_ON_FTRACE defined on x86 and powerpc64le8case `uname -m` in9 x86_64|i[3456]86) OFFS=5;;10 ppc64le) OFFS=8;;11 *) OFFS=0;;12esac13 14N=015echo "Setup up kprobes on first available 256 text symbols"16grep -i " t " /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \17while read i; do18 echo p ${i}+${OFFS} >> kprobe_events && N=$((N+1)) ||:19 test $N -eq 256 && break20done21 22L=`cat kprobe_events | wc -l`23if [ $L -ne 256 ]; then24 echo "The number of kprobes events ($L) is not 256"25 exit_fail26fi27 28cat kprobe_events >> $testlog29 30echo 1 > events/kprobes/enable31echo 0 > events/kprobes/enable32echo > kprobe_events33echo "Waiting for unoptimizing & freeing"34sleep 535echo "Done"36