cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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trigger-trace-marker-synthetic-kernel.tc (1011B)

      1#!/bin/sh
      2# SPDX-License-Identifier: GPL-2.0
      3# description: trace_marker trigger - test histogram with synthetic event against kernel event
      4# requires: set_event synthetic_events events/sched/sched_waking events/ftrace/print/trigger events/ftrace/print/hist
      5# flags:
      6
      7fail() { #msg
      8    echo $1
      9    exit_fail
     10}
     11
     12echo "Test histogram kernel event to trace_marker latency histogram trigger"
     13
     14echo 'latency u64 lat' > synthetic_events
     15echo 'hist:keys=pid:ts0=common_timestamp.usecs' > events/sched/sched_waking/trigger
     16echo 'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).latency($lat)' > events/ftrace/print/trigger
     17echo 'hist:keys=common_pid,lat:sort=lat' > events/synthetic/latency/trigger
     18sleep 1
     19echo "hello" > trace_marker
     20
     21grep 'hitcount: *1$' events/ftrace/print/hist > /dev/null || \
     22    fail "hist trigger did not trigger correct times on trace_marker"
     23
     24grep 'hitcount: *1$' events/synthetic/latency/hist > /dev/null || \
     25    fail "hist trigger did not trigger "
     26
     27exit 0