;=================================================================================
; Kernel Module example.
;
; Before re-assembling this example make sure you have changed 'vermagic' 
; (kernel_version) to reflect your kernel version. And have executed
; 'koupd lkm.asm' (koupd is located in the bin directory) to generate symversion 
; information. 
; If '__versions' section already exists, remove it prior to running koupd!
; 
; Load module with: 'insmod lkm.ko'
; View currently loaded modules with: 'lsmod'
; To inspect prink-ed messages use: 'cat /var/log/kern.log | tail'
; Unload the module with: 'rmmod lkm' 
;
;
; The LSCR Project. 
;=================================================================================


format ELF

section ".text" executable align 4

public  init_module
public  cleanup_module

extrn   struct_module
extrn   printk


init_module:
        push    init
        call    printk
        pop     eax
        xor     eax, eax
        ret

cleanup_module:
        push    cleanup
        call    printk
        pop     eax
        ret

section ".rodata" writeable align 4

init            db "<1>Hello, LKM world", 0xa, 0
cleanup         db "<1>Goodbye, cruel world", 0xa, 0


section '.modinfo' align 32

__kernel_version     db "kernel_version=2.6.19-1.2911.fc6", 0
__mod_vermagic       db "vermagic=2.6.19-1.2911.fc6 SMP mod_unload 586 REGPARM 4KSTACKS ", 0
__module_depends     db "depends=", 0
__module_license     db "license=GPL", 0
__module_author      db "author=...", 0
__module_description db "description=Hello, LKM world", 0


section '.gnu.linkonce.this_module' writeable align 64

__this_module:                                  ; this is actually a module structure (defined in include/linux/module.h)
                                                ; this structure has changed in 2.6.6. so if you are using kernel < 2.6.6
                                                ; lookup for the correct offsets. 
                dd 0, 0, 0
@@:             db "lkm"                        ; module name 
                db 160-($-@b) dup(0)
                dd init_module                  ; +172bytes. initialization function
		db 156 dup(0)
                dd cleanup_module               ; +332bytes. finalization function
		db 48 dup(0)