1 files changed, 57 insertions, 0 deletions
diff --git a/tools/gcov/coverage_report.sh b/tools/gcov/coverage_report.sh
new file mode 100755
index 0000000..5acbca2
--- /dev/null
+++ b/tools/gcov/coverage_report.sh
@@ -0,0 +1,57 @@
+#!/usr/bin/env bash
+
+#
+# Copyright (c) 2022 Arm Limited.
+#
+# 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
+#
+# 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 -o errexit
+set -o pipefail
+set -o errtrace
+
+GCDA=$1
+OUT_DIR=$2
+LDS_DIR="$(realpath "$(dirname "$(dirname "$(dirname "$0")")")")"
+
+usage() {
+    echo "Usage: $0 <gcov.tar.gz> <outdir>" >&2
+    exit 1
+}
+
+# Verify arguments to the script
+if [ ! -e "${GCDA}" ] || [ -z "${OUT_DIR}" ]
+then
+    usage
+fi
+
+# Recreate output directory
+if [ -d "${OUT_DIR}" ]
+then
+    rm -rf "${OUT_DIR}"
+fi
+
+mkdir "${OUT_DIR}"
+
+# Extract gcda files from the archive
+find "${LDS_DIR}/kernel" -name "*.gcda" -delete
+tar -C "${LDS_DIR}" -zxf "${GCDA}"
+
+# Analyze coverage and generate HTML report
+lcov -c -o "${OUT_DIR}/coverage.info" -d "${LDS_DIR}/kernel"
+lcov --rc lcov_branch_coverage=1 --remove "${OUT_DIR}/coverage.info" \
+    '*/kernel/arch/*' '*/kernel/include/*' \
+    > "${OUT_DIR}/coverage.filtered.info"
+genhtml -o "${OUT_DIR}" "${OUT_DIR}/coverage.filtered.info"