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1#!/bin/sh2# SPDX-License-Identifier: GPL-2.03# description: event trigger - test inter-event histogram trigger eprobe on synthetic event4# requires: dynamic_events synthetic_events events/syscalls/sys_enter_openat/hist "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README5 6echo 0 > events/enable7 8clear_dynamic_events9 10SYSTEM="syscalls"11START="sys_enter_openat"12END="sys_exit_openat"13FIELD="filename"14SYNTH="synth_open"15EPROBE="eprobe_open"16 17echo "$SYNTH unsigned long filename; long ret;" > synthetic_events18echo "hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger19echo "hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger20 21echo "e:$EPROBE synthetic/$SYNTH file=+0(\$filename):ustring ret=\$ret:s64" >> dynamic_events22 23grep -q "$SYNTH" dynamic_events24grep -q "$EPROBE" dynamic_events25test -d events/synthetic/$SYNTH26test -d events/eprobes/$EPROBE27 28echo 1 > events/eprobes/$EPROBE/enable29ls30echo 0 > events/eprobes/$EPROBE/enable31 32content=`grep '^ *ls-' trace | grep 'file='`33nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true34 35if [ -z "$content" ]; then36 exit_fail37fi38 39if [ ! -z "$nocontent" ]; then40 exit_fail41fi42 43echo "-:$EPROBE" >> dynamic_events44echo '!'"hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger45echo '!'"hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger46echo '!'"$SYNTH u64 filename; s64 ret;" >> synthetic_events47 48! grep -q "$SYNTH" dynamic_events49! grep -q "$EPROBE" dynamic_events50! test -d events/synthetic/$SYNTH51! test -d events/eprobes/$EPROBE52 53clear_trace54