1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# description: event trigger - test inter-event histogram trigger eprobe on synthetic event 4# requires: dynamic_events synthetic_events events/syscalls/sys_enter_openat/hist "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README 5 6echo 0 > events/enable 7 8clear_dynamic_events 9 10SYSTEM="syscalls" 11START="sys_enter_openat" 12END="sys_exit_openat" 13FIELD="filename" 14SYNTH="synth_open" 15EPROBE="eprobe_open" 16 17echo "$SYNTH unsigned long filename; long ret;" > synthetic_events 18echo "hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger 19echo "hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger 20 21echo "e:$EPROBE synthetic/$SYNTH file=+0(\$filename):ustring ret=\$ret:s64" >> dynamic_events 22 23grep -q "$SYNTH" dynamic_events 24grep -q "$EPROBE" dynamic_events 25test -d events/synthetic/$SYNTH 26test -d events/eprobes/$EPROBE 27 28echo 1 > events/eprobes/$EPROBE/enable 29ls 30echo 0 > events/eprobes/$EPROBE/enable 31 32content=`grep '^ *ls-' trace | grep 'file='` 33nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true 34 35if [ -z "$content" ]; then 36 exit_fail 37fi 38 39if [ ! -z "$nocontent" ]; then 40 exit_fail 41fi 42 43echo "-:$EPROBE" >> dynamic_events 44echo '!'"hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger 45echo '!'"hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger 46echo '!'"$SYNTH u64 filename; s64 ret;" >> synthetic_events 47 48! grep -q "$SYNTH" dynamic_events 49! grep -q "$EPROBE" dynamic_events 50! test -d events/synthetic/$SYNTH 51! test -d events/eprobes/$EPROBE 52 53clear_trace 54