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#! /bin/sh
echo checking running as root
if [ `whoami` != "root" ]; then
echo run as root
exit 1
fi
echo checking /sys/kernel/debug mounted
if test -d /sys/kernel/debug/tracing/events
then
true
else
mount -t debugfs /dev/null /sys/kernel/debug
fi
tmp=`mktemp -d`
echo made work directory $tmp
trap 'rm -fr $tmp' 0 1 2 3 5 9 15
# Notice we're ignoring several tracepoints:
# sys_enter_*/sys_exit_*: "virtual" tracepoints unusable by stap
# hcall_entry/hcall_exit: ppc64-specific tracepoints that are on the
# blocklist
# ftrace:function: "virtual" tracepoint unusable by stap
echo gathering perf tracepoint list
${PERF-perf} list tracepoint | grep Tracepoint | grep -E -v 'sys_(enter|exit)_' \
| grep -E -v 'hcall_(entry|exit)'| grep -E -v 'ftrace:function' \
| awk '{print $1}' | sort > $tmp/perf
perf_tracepoints=`wc -l $tmp/perf | cut -f1 -d' '`
echo " perf found $perf_tracepoints tracepoints"
echo gathering systemtap tracepoint list
${STAP-stap} --poison-cache -L 'kernel.trace("*")' | cut -f2 -d'"' \
| sort > $tmp/stap
stap_tracepoints=`wc -l $tmp/stap | cut -f1 -d' '`
echo " stap found $stap_tracepoints tracepoints"
echo listing tracepoints missing in stap
echo
comm ${COMM--23} $tmp/perf $tmp/stap
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