lkmpg/.ci/static-analysis.sh
linD026 5070fcd9d0
CI: Run static analysis with Cppcheck (#105)
Cppcheck[1] is integrated into CI pipeline for running static analysis.

However, Cppcheck is known to report false-positive, and we have to
suppress some warnings in advance.

[1] https://cppcheck.sourceforge.io/
2021-09-14 00:52:04 +08:00

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#!/usr/bin/env bash
SOURCES=$(find $(git rev-parse --show-toplevel) | egrep "\.(cpp|cc|c|h)\$")
CPPCHECK=$(which cppcheck)
if [ $? -ne 0 ]; then
echo "[!] cppcheck not installed. Failed to run static analysis the source code." >&2
exit 1
fi
## Suppression list ##
# This list will explain the detail of suppressed warnings.
# The prototype of the item should be like:
# "- [{file}] {spec}: {reason}"
#
# - [hello-1.c] unusedFunction: False positive of init_module and cleanup_module.
# - [*.c] missingIncludeSystem: Focus on the example code, not the kernel headers.
OPTS=" --enable=warning,style,performance,information
--suppress=unusedFunction:hello-1.c
--suppress=missingIncludeSystem
--std=c89 "
$CPPCHECK $OPTS --xml ${SOURCES} 2> cppcheck.xml
ERROR_COUNT=$(cat cppcheck.xml | egrep -c "</error>" )
if [ $ERROR_COUNT -gt 0 ]; then
echo "Cppcheck failed: error count is $ERROR_COUNT"
cat cppcheck.xml
exit 1
fi
exit 0