hulk inclusion
category: feature
bugzilla: 5507
CVE: NA

----------------------------------------

support livepatch without ftrace for x86_64

supported now:
        livepatch relocation when init_patch after load_module;
        instruction patched when enable;
	activeness function check;
	enforcing the patch stacking principle;

x86_64 use variable length instruction, so there's no need to consider
extra implementation for long jumps.
Signed-off-by: NCheng Jian <cj.chengjian@huawei.com>
Signed-off-by: NLi Bin <huawei.libin@huawei.com>
Tested-by: NYang ZuoTing <yangzuoting@huawei.com>
Tested-by: NCheng Jian <cj.chengjian@huawei.com>
Reviewed-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Nzhangyi (F) <yi.zhang@huawei.com>
Reviewed-By: NXie XiuQi <xiexiuqi@huawei.com>
Reviewed-By: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>