mbedtls/scripts/lcov.sh
Gilles Peskine e820c0abc8 Update spelling "mbed TLS" to "Mbed TLS"
The official spelling of the trade mark changed from all-lowercase "mbed"
to normal proper noun capitalization "Mbed" a few years ago. We've been
using the new spelling in new text but still have the old spelling in a
lot of text. This commit updates most occurrences of "mbed TLS":

```
sed -i -e 's/mbed TLS/Mbed TLS/g' $(git ls-files ':!ChangeLog' ':!tests/data_files/**' ':!tests/suites/*.data' ':!programs/x509/*' ':!configs/tfm*')
```

Justification for the omissions:

* `ChangeLog`: historical text.
* `test/data_files/**`, `tests/suites/*.data`, `programs/x509/*`: many
  occurrences are significant names in certificates and such. Changing
  the spelling would invalidate many signatures and tests.
* `configs/tfm*`: this is an imported file. We'll follow the upstream
  updates.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2023-09-12 19:18:17 +02:00

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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
# Collect stats and build a HTML report.
lcov_library_report () {
rm -rf Coverage
mkdir Coverage Coverage/tmp
lcov --capture --initial --directory library -o Coverage/tmp/files.info
lcov --rc lcov_branch_coverage=1 --capture --directory library -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 "Mbed TLS" --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/*.gcda
# Location with CMake
rm -f library/CMakeFiles/*.dir/*.gcda
}
if [ $# -gt 0 ] && [ "$1" = "--help" ]; then
help
exit
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" "$@"