u-boot/test/trace/test-trace.sh
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2013 The Chromium OS Authors.
#
# 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"