mbedtls/scripts/lcov.sh
Thomas Daubney 11120f9c4d Modify lcov.sh to work in tf-psa-crypto as well
Add repository detection (credit to davidhorstmann-arm
for adding this in all.sh previously) and use repository
detection to set the library directory and title
variables.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
2023-10-19 15:54:52 +01:00

95 lines
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#!/bin/sh
help () {
cat <<EOF
Usage: $0 [-r]
Collect coverage statistics of library code into an HTML report.
General instructions:
1. Build the library with CFLAGS="--coverage -O0 -g3" and link the test
programs with LDFLAGS="--coverage".
This can be an out-of-tree build.
For example (in-tree):
make CFLAGS="--coverage -O0 -g3" LDFLAGS="--coverage"
Or (out-of-tree):
mkdir build-coverage && cd build-coverage &&
cmake -D CMAKE_BUILD_TYPE=Coverage .. && make
2. Run whatever tests you want.
3. Run this script from the parent of the directory containing the library
object files and coverage statistics files.
4. Browse the coverage report in Coverage/index.html.
5. After rework, run "$0 -r", then re-test and run "$0" to get a fresh report.
Options
-r Reset traces. Run this before re-testing to get fresh measurements.
EOF
}
# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -eu
# Repository detection
in_mbedtls_repo () {
test -d include -a -d library -a -d programs -a -d tests
}
# Collect stats and build a HTML report.
lcov_library_report () {
rm -rf Coverage
mkdir Coverage Coverage/tmp
lcov --capture --initial --directory $library_dir -o Coverage/tmp/files.info
lcov --rc lcov_branch_coverage=1 --capture --directory $library_dir -o Coverage/tmp/tests.info
lcov --rc lcov_branch_coverage=1 --add-tracefile Coverage/tmp/files.info --add-tracefile Coverage/tmp/tests.info -o Coverage/tmp/all.info
lcov --rc lcov_branch_coverage=1 --remove Coverage/tmp/all.info -o Coverage/tmp/final.info '*.h'
gendesc tests/Descriptions.txt -o Coverage/tmp/descriptions
genhtml --title "$title" --description-file Coverage/tmp/descriptions --keep-descriptions --legend --branch-coverage -o Coverage Coverage/tmp/final.info
rm -f Coverage/tmp/*.info Coverage/tmp/descriptions
echo "Coverage report in: Coverage/index.html"
}
# Reset the traces to 0.
lcov_reset_traces () {
# Location with plain make
rm -f $library_dir/*.gcda
# Location with CMake
rm -f $library_dir/CMakeFiles/*.dir/*.gcda
}
if [ $# -gt 0 ] && [ "$1" = "--help" ]; then
help
exit
fi
if in_mbedtls_repo; then
library_dir='library'
title='Mbed TLS'
else
library_dir='build/core'
title='TF-PSA-Crypto'
fi
main=lcov_library_report
while getopts r OPTLET; do
case $OPTLET in
r) main=lcov_reset_traces;;
*) help 2>&1; exit 120;;
esac
done
shift $((OPTIND - 1))
"$main" "$@"