3. Объедините все объектные файлы в один. Под x86 это делается командой:
>ld -m elf_i386 -r -o <имя_модуля>.o <1-ый исходный файл>.o <2-ой исходный файл>.o.
Пример такого модуля:
start.c
>/* start.c
>* Copyright (C) 1999 by Ori Pomerantz
>*
>* "Hello, world" - the kernel module version.
>* This file includes just the start routine
>*/
>/* The necessary header files */
>/* Standard in kernel modules */
>#include /* We're doing kernel work */
>#include /* Specifically, a module */
>/* Deal with CONFIG_MODVERSIONS */
>#if CONFIG_MODVERSIONS==1
>#define MODVERSIONS
>#include
>#endif
>/* Initialize the module */
>int init_module() {
> printk("Hello, world - this is the kernel speaking\n");
> /* If we return a non zero value, it means that
> * init_module failed and the kernel module
> * can't be loaded */
> return 0;
>}
>/* stop.c
>* Copyright (C) 1999 by Ori Pomerantz
>*
>* "Hello, world" - the kernel module version. This
>* file includes just the stop routine.
>*/
>/* The necessary header files */
>/* Standard in kernel modules */
>#include /* We're doing kernel work */
>#define __NO_VERSION__ /* This isn't "the" file of the kernel module */
>#include /* Specifically, a module */
>#include /* Not included by module.h because of the __NO_VERSION__ */
>/* Deal with CONFIG_MODVERSIONS */
>#if CONFIG_MODVERSIONS==1
>#define MODVERSIONS
>#include
>#endif
>/* Cleanup - undid whatever init_module did */
>void cleanup_module(){
> printk("Short is the life of a kernel module\n");
>}
Makefile
># Makefile for a multifile kernel module
>CC=gcc
>MODCFLAGS := -Wall -DMODULE -D__KERNEL__ -DLINUX
>hello.o: start.o stop.o
> ld -m elf_i386 -r -o hello.o start.o stop.o
>start.o: start.c /usr/include/linux/version.h
> $(CC) $(MODCFLAGS) -c start.c
>stop.o: stop.c /usr/include/linux/version.h
> $(CC) $(MODCFLAGS) -c stop.c
