lkmpg/.ci/static-analysis.sh
Chih-En Lin e2e8e1106d
CI: Fix "unreplaced" warnings by using git source (#229)
Because of sparse-latest.tar.gz has not been updated since 06-Sep-2021,
we are encoutering an old bug, 0e1aae55e49c ("fix "unreplaced" warnings
caused by using typeof() on inline functions") [1], that has been fixed
in the newest version. So, let's switch to the git source tree [2]
instead of using sparse-latest.tar.gz [3].

[1] https://git.kernel.org/pub/scm/devel/sparse/sparse.git/commit/?id=0e1aae55e49cad7ea43848af5b58ff0f57e7af99
[2] git://git.kernel.org/pub/scm/devel/sparse/sparse.git
[3] http://www.kernel.org/pub/software/devel/sparse/dist/sparse-latest.tar.gz
2023-09-17 18:09:48 +08:00

113 lines
3.2 KiB
Bash
Executable File

#!/usr/bin/env bash
function do_cppcheck()
{
local SOURCES=$(find $(git rev-parse --show-toplevel) | egrep "\.(cpp|cc|c|h)\$")
local CPPCHECK=$(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.
local OPTS="
--enable=warning,style,performance,information
--suppress=unusedFunction:hello-1.c
--suppress=missingIncludeSystem
--std=c89 "
$CPPCHECK $OPTS --xml ${SOURCES} 2> cppcheck.xml
local ERROR_COUNT=$(cat cppcheck.xml | egrep -c "</error>" )
if [ $ERROR_COUNT -gt 0 ]; then
echo "Cppcheck failed: $ERROR_COUNT error(s)"
cat cppcheck.xml
exit 1
fi
}
function do_sparse()
{
git clone git://git.kernel.org/pub/scm/devel/sparse/sparse.git --depth=1
if [ $? -ne 0 ]; then
echo "Failed to download sparse."
exit 1
fi
pushd sparse
make sparse || exit 1
sudo make INST_PROGRAMS=sparse PREFIX=/usr install || exit 1
popd
local SPARSE=$(which sparse)
make -C examples C=2 CHECK="$SPARSE" 2> sparse.log
local WARNING_COUNT=$(cat sparse.log | egrep -c " warning:" )
local ERROR_COUNT=$(cat sparse.log | egrep -c " error:" )
local COUNT=`expr $WARNING_COUNT + $ERROR_COUNT`
if [ $COUNT -gt 0 ]; then
echo "Sparse failed: $WARNING_COUNT warning(s), $ERROR_COUNT error(s)"
cat sparse.log
exit 1
fi
make -C examples clean
}
function do_gcc()
{
local GCC=$(which gcc-11)
if [ $? -ne 0 ]; then
echo "[!] gcc-11 is not installed. Failed to run static analysis with GCC." >&2
exit 1
fi
make -C examples CONFIG_STATUS_CHECK_GCC=y STATUS_CHECK_GCC=$GCC 2> gcc.log
local WARNING_COUNT=$(cat gcc.log | egrep -c " warning:" )
local ERROR_COUNT=$(cat gcc.log | egrep -c " error:" )
local COUNT=`expr $WARNING_COUNT + $ERROR_COUNT`
if [ $COUNT -gt 0 ]; then
echo "gcc failed: $WARNING_COUNT warning(s), $ERROR_COUNT error(s)"
cat gcc.log
exit 1
fi
make -C examples CONFIG_STATUS_CHECK_GCC=y STATUS_CHECK_GCC=$GCC clean
}
function do_smatch()
{
git clone https://github.com/error27/smatch.git --depth=1
if [ $? -ne 0 ]; then
echo "Failed to download smatch."
exit 1
fi
pushd smatch
make smatch || exit 1
local SMATCH=$(pwd)/smatch
popd
make -C examples C=2 CHECK="$SMATCH -p=kernel" > smatch.log
local WARNING_COUNT=$(cat smatch.log | egrep -c " warn:" )
local ERROR_COUNT=$(cat smatch.log | egrep -c " error:" )
local COUNT=`expr $WARNING_COUNT + $ERROR_COUNT`
if [ $COUNT -gt 0 ]; then
echo "Smatch failed: $WARNING_COUNT warning(s), $ERROR_COUNT error(s)"
cat smatch.log | grep "warn:\|error:"
exit 1
fi
make -C examples clean
}
do_cppcheck
do_sparse
do_gcc
do_smatch
exit 0