| #!/bin/bash |
| # Generate upstream-kmsan.config from upstream-kasan.config. |
| # Make sure $CC points to the Clang binary and $SOURCEDIR - to the kernel tree. |
| |
| THISDIR=`cd $(dirname $0); pwd` |
| KASAN_CONFIG=${THISDIR}/upstream-kasan.config |
| KMSAN_CONFIG=${THISDIR}/upstream-kmsan.config |
| KMSAN_ADD=${THISDIR}/kmsan-syzbot-bits.config |
| |
| [ -z "${CC}" ] && echo 'Please set $CC to point to the compiler!' && exit |
| [ -z "${SOURCEDIR}" ] && echo 'Please set $SOURCEDIR to point to the kernel tree!' && exit |
| |
| ( |
| cd $SOURCEDIR |
| cp ${KASAN_CONFIG} .config |
| scripts/kconfig/merge_config.sh .config ${KMSAN_ADD} |
| make CC="${CC}" oldconfig < /dev/null |
| |
| echo "# The following configs are added manually, preserve them. |
| # CONFIG_DEBUG_MEMORY was once added to mm tree and cause disabling of KASAN, |
| # which in turn caused storm of assorted crashes after silent memory |
| # corruptions. The config was reverted, but we keep it here for the case |
| # it is reintroduced to kernel again. |
| CONFIG_DEBUG_MEMORY=y |
| # This config can be used to enable any additional temporal debugging |
| # features in linux-next tree. |
| CONFIG_DEBUG_AID_FOR_SYZBOT=y |
| " > ${KMSAN_CONFIG} |
| |
| cat .config >> ${KMSAN_CONFIG} |
| cp ${KMSAN_CONFIG} .config |
| ) |
