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# SPDX-License-Identifier: GPL-2.0
setup_remote()
{
local name=$1
[ -e $TRACING_DIR/remotes/$name/write_event ] || exit_unresolved
cd remotes/$name/
echo 0 > tracing_on
clear_trace
echo 7 > buffer_size_kb
echo 0 > events/enable
echo 1 > events/$name/selftest/enable
echo 1 > tracing_on
}
setup_remote_test()
{
[ -d $TRACING_DIR/remotes/test/ ] || modprobe remote_test || exit_unresolved
setup_remote "test"
}
assert_loaded()
{
grep -q "(loaded)" buffer_size_kb || return 1
}
assert_unloaded()
{
grep -q "(unloaded)" buffer_size_kb || return 1
}
reload_remote()
{
echo 0 > tracing_on
clear_trace
assert_unloaded
echo 1 > tracing_on
assert_loaded
}
dump_trace_pipe()
{
output=$(mktemp $TMPDIR/remote_test.XXXXXX)
cat trace_pipe > $output &
pid=$!
sleep 1
kill -1 $pid
echo $output
}
check_trace()
{
start_id="$1"
end_id="$2"
file="$3"
# Ensure the file is not empty
test -n "$(head $file)"
prev_ts=0
id=0
# Only keep <timestamp> <id>
tmp=$(mktemp $TMPDIR/remote_test.XXXXXX)
sed -e 's/\[[0-9]*\]\s*\([0-9]*.[0-9]*\): [a-z]* id=\([0-9]*\)/\1 \2/' $file > $tmp
while IFS= read -r line; do
ts=$(echo $line | cut -d ' ' -f 1)
id=$(echo $line | cut -d ' ' -f 2)
test $(echo "$ts>$prev_ts" | bc) -eq 1
test $id -eq $start_id
prev_ts=$ts
start_id=$((start_id + 1))
done < $tmp
test $id -eq $end_id
rm $tmp
}
get_cpu_ids()
{
sed -n 's/^processor\s*:\s*\([0-9]\+\).*/\1/p' /proc/cpuinfo
}
get_page_size()
{
sed -ne 's/^.*data.*size:\([0-9][0-9]*\).*/\1/p' events/header_page
}
get_selftest_event_size()
{
sed -ne 's/^.*field:.*;.*size:\([0-9][0-9]*\);.*/\1/p' events/*/selftest/format | awk '{s+=$1} END {print s}'
}
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