参考
我使用的是common-android13-5.10,在编译的时候使用的是build.sh的方法,在实际编译的时候遇到System.map找不到的问题,需要修改build.sh,将System.map从内核编译目录下拷贝到dist目录下即可,patch如下:
pengdl@ubuntu:~/work/android/common-android13-5.10/build/kernel$ git diff diff --git a/build.sh b/build.sh index e33f44f5d97d..7d001733b6d6 100755 --- a/build.sh +++ b/build.sh @@ -982,6 +982,11 @@ if [ -z "${SKIP_CP_KERNEL_HDR}" ]; then tar -czf ${KERNEL_UAPI_HEADERS_TAR} --directory=${KERNEL_UAPI_HEADERS_DIR} usr/ fi +if [ -f ${OUT_DIR}/System.map ];then +echo " Copying System.map to ${DIST_DIR}" +cp ${OUT_DIR}/System.map ${DIST_DIR} +fi + if [ -z "${SKIP_CP_KERNEL_HDR}" ] ; then echo "========================================================" KERNEL_HEADERS_TAR=${DIST_DIR}/kernel-headers.tar.gz
如果要支持kprobe的话,使用common-modules/virtual-device/build.config.virtual_device_kprobes.x86_64,下面是我是用的配置:
$ cat common-modules/virtual-device/build.config.virtual_device_kprobes.x86_64 . ${ROOT_DIR}/common-modules/virtual-device/build.config.virtual_device . ${ROOT_DIR}/${KERNEL_DIR}/build.config.x86_64 . ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki_kprobes DEFCONFIG=cf_x86_64_gki_defconfig PRE_DEFCONFIG_CMDS="KCONFIG_CONFIG=${ROOT_DIR}/${KERNEL_DIR}/arch/x86/configs/${DEFCONFIG} ${ROOT_DIR}/${KERNEL_DIR}/scripts/kconfig/merge_config.sh -m -r ${ROOT_DIR}/${KERNEL_DIR}/arch/x86/configs/gki_defconfig ${ROOT_DIR}/common-modules/virtual-device/virtual_device.fragment" POST_DEFCONFIG_CMDS="rm ${ROOT_DIR}/${KERNEL_DIR}/arch/x86/configs/${DEFCONFIG} && update_kprobes_config" DO_NOT_STRIP_MODULES=1 function update_kprobes_config() { ${KERNEL_DIR}/scripts/config --file ${OUT_DIR}/.config \ -d LTO_CLANG_THIN \ -d LTO_CLANG_FULL \ -d CFI_PERMISSIVE \ -d CFI_CLANG \ -e CONFIG_FTRACE_SYSCALLS \ -e CONFIG_STACK_TRACER \ -e CONFIG_DYNAMIC_FTRACE \ -e CONFIG_FUNCTION_TRACER \ -e CONFIG_FUNCTION_GRAPH_TRACER \ -e CONFIG_SCHED_TRACER \ -e CONFIG_BLK_DEV_IO_TRACE \ -e CONFIG_BPF_KPROBE_OVERRIDE \ -e CONFIG_BPF_LSM \ -e CONFIG_CFS_BANDWIDTH \ -e CONFIG_IRQSOFF_TRACER \ -e CONFIG_FUNCTION_PROFILER \ -e CONFIG_PREEMPT_TRACER \ -e CONFIG_CHECKPOINT_RESTORE \ -d CONFIG_RANDOMIZE_BASE (cd ${OUT_DIR} && \ make ${TOOL_ARGS} O=${OUT_DIR} olddefconfig) } # Not saving any kernel images. This build step is meant purely to generate the .kos. FILES=""
使用下面的命令进行编译:
SKIP_MRPROPER=1 BUILD_CONFIG=common-modules/virtual-device/build.config.virtual_device_kprobes.x86_64 ./build/build.sh
完。