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1#!/bin/sh2# SPDX-License-Identifier: GPL-2.03# description: Generic dynamic event - add/remove probes with BTF arguments4# requires: dynamic_events "<argname>":README5 6KPROBES=7FPROBES=8FIELDS=9 10if grep -qF "p[:[<group>/][<event>]] <place> [<args>]" README ; then11 KPROBES=yes12fi13if grep -qF "f[:[<group>/][<event>]] <func-name>[%return] [<args>]" README ; then14 FPROBES=yes15fi16if grep -qF "<argname>[->field[->field|.field...]]" README ; then17 FIELDS=yes18fi19 20if [ -z "$KPROBES" -a -z "$FPROBES" ] ; then21 exit_unsupported22fi23 24echo 0 > events/enable25echo > dynamic_events26 27TP=kfree28TP2=kmem_cache_alloc29TP3=getname_flags30TP4=sched_wakeup31 32if [ "$FPROBES" ] ; then33echo "f:fpevent $TP object" >> dynamic_events34echo "t:tpevent $TP ptr" >> dynamic_events35 36grep -q "fpevent.*object=object" dynamic_events37grep -q "tpevent.*ptr=ptr" dynamic_events38 39echo > dynamic_events40 41echo "f:fpevent $TP "'$arg1' >> dynamic_events42grep -q "fpevent.*object=object" dynamic_events43 44echo > dynamic_events45 46echo "f:fpevent $TP "'$arg*' >> dynamic_events47echo "t:tpevent $TP "'$arg*' >> dynamic_events48 49grep -q "fpevent.*object=object" dynamic_events50grep -q "tpevent.*ptr=ptr" dynamic_events51! grep -q "tpevent.*_data" dynamic_events52fi53 54echo > dynamic_events55 56if [ "$FIELDS" -a "$FPROBES" ] ; then57echo "t:tpevent ${TP2} obj_size=s->object_size" >> dynamic_events58echo "f:fpevent ${TP3}%return path=\$retval->name:string" >> dynamic_events59echo "t:tpevent2 ${TP4} p->se.group_node.next->prev" >> dynamic_events60 61grep -q "tpevent .*obj_size=s->object_size" dynamic_events62grep -q "fpevent.*path=\$retval->name:string" dynamic_events63grep -q 'tpevent2 .*p->se.group_node.next->prev' dynamic_events64 65echo > dynamic_events66fi67 68if [ "$KPROBES" ] ; then69echo "p:kpevent $TP object" >> dynamic_events70grep -q "kpevent.*object=object" dynamic_events71 72echo > dynamic_events73 74echo "p:kpevent $TP "'$arg*' >> dynamic_events75grep -q "kpevent.*object=object" dynamic_events76fi77 78clear_trace79