kernel: Rewrite the kernel source code (#554)

* clean unused header

* on_module_mounted in ksud.c

* refact: use app_profile

* unified hook manager

* add zygote to hook target

* move reboot hook to supercall.c

* refactor: kernel_umount setuid_hook

* update mark rules, add init mark tracker

* remove reboot from check_syscall_fastpath

* update setuid_hook, remove uneeded sucompat enable

* log freely

* kernel: Migrate kprobe hook configuration items

* kernel: fix build

* cli: add ksud debug mark

* Fix rustfmt warning

---------

Co-authored-by: Ylarod <me@ylarod.cn>
Co-authored-by: Wang Han <416810799@qq.com>
Co-authored-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>

kernel/kernel_umount.h

@@ -0,0 +1,12 @@
+#ifndef __KSU_H_KERNEL_UMOUNT
+#define __KSU_H_KERNEL_UMOUNT
+
+#include <linux/types.h>
+
+void ksu_kernel_umount_init(void);
+void ksu_kernel_umount_exit(void);
+
+// Handler function to be called from setresuid hook
+int ksu_handle_umount(uid_t old_uid, uid_t new_uid);
+
+#endif