[dpdk-dev] [PATCH] devtools: add cppcheck wrapper

[Ferruh Yigit <ferruh.yigit@intel.com>]

Adding wrapper script for cppcheck code analysis tool.

usage: cppcheck.sh [-h] [path]

Without any argument current folder scanned with all sub folders, if
'path' argument provided, that 'path' is scanned with all its
subfolders, like:
"./devtools/cppcheck.sh lib/librte_ethdev/"

The output log is saved to 'cppcheck_error.txt' in current folder.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 devtools/cppcheck.sh | 67 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100755 devtools/cppcheck.sh

diff --git a/devtools/cppcheck.sh b/devtools/cppcheck.sh
new file mode 100755
index 000000000000..935eb5d9d625
--- /dev/null
+++ b/devtools/cppcheck.sh
@@ -0,0 +1,67 @@
+#! /bin/sh
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2021 Intel Corporation
+
+# wrapper script for cppcheck code analysis tool
+# Args:
+#   $1: path to scan (optional)
+
+CPPCHECK_BIN=cppcheck
+out=cppcheck_error.txt
+
+which ${CPPCHECK_BIN} > /dev/null 2> /dev/null
+if [ $? -ne 0 ]; then
+	echo "${CPPCHECK_BIN} is missing!"
+	exit 1
+fi
+
+print_usage () {
+	cat <<- END_OF_HELP
+	usage: $(basename $0) [-h] [path]
+
+	Wrapper on checkpatch tool. Output goes to ${out} file.
+
+	Without parameter current folder with all subfolders scanned. It is possible
+	to provide a sub-folder to recude the scan to that folder.
+	END_OF_HELP
+}
+
+if [ "$1" = "-h" ]; then
+	print_usage
+	exit 1;
+fi
+
+dir=${1:-$(dirname $(readlink -f $0))/..}
+if [ ! -e ${dir} ]; then
+	echo "\"${dir}\" is not valid folder/file to check"
+	exit 1
+fi
+
+
+suppress_args="
+	--suppress=invalidPrintfArgType_sint \
+	--suppress=invalidPrintfArgType_uint \
+	--suppress=duplicateAssignExpression \
+	--suppress=nullPointerRedundantCheck \
+	--suppress=identicalConditionAfterEarlyExit \
+	--suppress=objectIndex
+	"
+
+# all, warning, performance, portability,
+# information, unusedFunction, missingInclude
+additional_checks=warning
+
+${CPPCHECK_BIN} \
+	-j64 \
+	--language=c \
+	--enable=${additional_checks} \
+	--force \
+	${suppress_args} \
+	${dir} \
+	2> ${out}
+
+if [ $? -eq 0 ]; then
+	echo -e "\nOutput saved to ${out}"
+else
+	exit $?
+fi
-- 
2.29.2