54 lines
1.7 KiB
Bash
54 lines
1.7 KiB
Bash
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: event trigger - test inter-event histogram trigger eprobe on synthetic event
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# requires: dynamic_events synthetic_events events/syscalls/sys_enter_openat/hist "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README
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echo 0 > events/enable
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clear_dynamic_events
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SYSTEM="syscalls"
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START="sys_enter_openat"
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END="sys_exit_openat"
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FIELD="filename"
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SYNTH="synth_open"
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EPROBE="eprobe_open"
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echo "$SYNTH unsigned long filename; long ret;" > synthetic_events
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echo "hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger
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echo "hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger
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echo "e:$EPROBE synthetic/$SYNTH file=+0(\$filename):ustring ret=\$ret:s64" >> dynamic_events
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grep -q "$SYNTH" dynamic_events
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grep -q "$EPROBE" dynamic_events
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test -d events/synthetic/$SYNTH
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test -d events/eprobes/$EPROBE
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echo 1 > events/eprobes/$EPROBE/enable
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ls
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echo 0 > events/eprobes/$EPROBE/enable
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content=`grep '^ *ls-' trace | grep 'file='`
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nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true
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if [ -z "$content" ]; then
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exit_fail
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fi
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if [ ! -z "$nocontent" ]; then
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exit_fail
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fi
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echo "-:$EPROBE" >> dynamic_events
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echo '!'"hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger
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echo '!'"hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger
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echo '!'"$SYNTH u64 filename; s64 ret;" >> synthetic_events
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! grep -q "$SYNTH" dynamic_events
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! grep -q "$EPROBE" dynamic_events
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! test -d events/synthetic/$SYNTH
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! test -d events/eprobes/$EPROBE
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clear_trace
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