|
|
|
# Copyright (c) 2013 The Chromium OS Authors.
|
|
|
|
#
|
|
|
|
# SPDX-License-Identifier: GPL-2.0+
|
|
|
|
#
|
|
|
|
|
|
|
|
# Simple test script for tracing with sandbox
|
|
|
|
|
|
|
|
TRACE_OPT="FTRACE=1"
|
|
|
|
|
|
|
|
BASE="$(dirname $0)/.."
|
|
|
|
. $BASE/common.sh
|
|
|
|
|
|
|
|
run_trace() {
|
|
|
|
echo "Run trace"
|
|
|
|
./${OUTPUT_DIR}/u-boot <<END
|
|
|
|
trace stats
|
|
|
|
hash sha256 0 10000
|
|
|
|
trace pause
|
|
|
|
trace stats
|
|
|
|
hash sha256 0 10000
|
|
|
|
trace stats
|
|
|
|
trace resume
|
|
|
|
hash sha256 0 10000
|
|
|
|
trace pause
|
|
|
|
trace stats
|
|
|
|
reset
|
|
|
|
END
|
|
|
|
}
|
|
|
|
|
|
|
|
check_results() {
|
|
|
|
echo "Check results"
|
|
|
|
|
|
|
|
# Expect sha256 to run 3 times, so we see the string 6 times
|
|
|
|
if [ $(grep -c sha256 ${tmp}) -ne 6 ]; then
|
|
|
|
fail "sha256 error"
|
|
|
|
fi
|
|
|
|
|
|
|
|
# 4 sets of results (output of 'trace stats')
|
|
|
|
if [ $(grep -c "traced function calls" ${tmp}) -ne 4 ]; then
|
|
|
|
fail "trace output error"
|
|
|
|
fi
|
|
|
|
|
|
|
|
# Check trace counts. We expect to see an increase in the number of
|
|
|
|
# traced function calls between each 'trace stats' command, except
|
|
|
|
# between calls 2 and 3, where tracing is paused.
|
|
|
|
# This code gets the sign of the difference between each number and
|
|
|
|
# its predecessor.
|
|
|
|
counts="$(tr -d ',\r' <${tmp} | awk \
|
|
|
|
'/traced function calls/ { diff = $1 - upto; upto = $1; \
|
|
|
|
printf "%d ", diff < 0 ? -1 : (diff > 0 ? 1 : 0)}')"
|
|
|
|
|
|
|
|
if [ "${counts}" != "1 1 0 1 " ]; then
|
|
|
|
fail "trace collection error: ${counts}"
|
|
|
|
fi
|
|
|
|
}
|
|
|
|
|
|
|
|
echo "Simple trace test / sanity check using sandbox"
|
|
|
|
echo
|
|
|
|
tmp="$(tempfile)"
|
|
|
|
build_uboot "${TRACE_OPT}"
|
|
|
|
run_trace >${tmp}
|
|
|
|
check_results ${tmp}
|
|
|
|
rm ${tmp}
|
|
|
|
echo "Test passed"
|