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Merge pull request #8926 from gilles-peskine-arm/lcov-cannot-write-investigation

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Work around a bug in ancient lcov
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Gilles Peskine 2024-03-13 17:52:15 +00:00 committed by GitHub
commit 5c77ad0f4f
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1 changed files with 13 additions and 7 deletions
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20
scripts/lcov.sh
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@ -39,13 +39,19 @@ in_mbedtls_build_dir () {
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
# Pass absolute paths as lcov output files. This works around a bug
# whereby lcov tries to create the output file in the root directory
# if it has emitted a warning. A fix was released in lcov 1.13 in 2016.
# Ubuntu 16.04 is affected, 18.04 and above are not.
# https://github.com/linux-test-project/lcov/commit/632c25a0d1f5e4d2f4fd5b28ce7c8b86d388c91f
COVTMP=$PWD/Coverage/tmp
lcov --capture --initial --directory $library_dir -o "$COVTMP/files.info"
lcov --rc lcov_branch_coverage=1 --capture --directory $library_dir -o "$COVTMP/tests.info"
lcov --rc lcov_branch_coverage=1 --add-tracefile "$COVTMP/files.info" --add-tracefile "$COVTMP/tests.info" -o "$COVTMP/all.info"
lcov --rc lcov_branch_coverage=1 --remove "$COVTMP/all.info" -o "$COVTMP/final.info" '*.h'
gendesc tests/Descriptions.txt -o "$COVTMP/descriptions"
genhtml --title "$title" --description-file "$COVTMP/descriptions" --keep-descriptions --legend --branch-coverage -o Coverage "$COVTMP/final.info"
rm -f "$COVTMP/"*.info "$COVTMP/descriptions"
echo "Coverage report in: Coverage/index.html"
}