Re: Error building 'Hello,World' kernel Module

[Lei Yang <leiyang@xxxxxxxxxxxx>]

Shine Mohamed Jabbar wrote:
> Hi,
>
> I tried ur program in my machine and
> its working fine.
>
> Apart from what u've done I did two more things
> 1) Copied the config file from the /boot to kernel
>    source directory and done "make menuconfig"

I didn't copy anything to kernel source, I just did 'make oldconfig'

> 2) Done a make in the kernel source till it compiles
>    the first c file (CC      init/main.o). (I've done
>    because to make a link of include/asm->include/asm-i386).

Is this really necessary...? I don't know. I didn't do that. I thought 
all the information module needed is the kernel configuration.

Thanks.
Lei

> Regards,
> Shine Mohamed Jabbar
>
> On Thu, 2004-08-05 at 04:13, Lei Yang wrote:
>
> > Hello,
> >
> > I am learning about module programming and just tried to build a
> > simplest module, Hello World.
> >
> > The code is as follows:
> > /* hello.c
> > #include <linux/module.h>       
> > #include <linux/kernel.h>      
> >
> > int init_module(void)
> > {
> >        printk("Hello world!\n");
> >        return 0;
> > }
> >
> > void cleanup_module(void)
> > {
> >        printk(KERN_ALERT "Goodbye world!\n");
> > }
> >
> >
> > The makefile is just one line:
> > obj-m += hello.o
> >
> > Then as root, I did in the HelloWorld directory:
> >
> > make -C /usr/src/linux-`uname -r` SUBDIRS=$PWD modules
> >
> > There is such an error:
> > make: Entering directory `/usr/src/linux-2.6.5-7.104-default'
> >
> > WARNING: Symbol version dump
> > /usr/src/linux-2.6.5-7.104-default/Module.symvers is  missing, modules
> > will have CONFIG_MODVERSIONS disabled.
> >
> > make[1]: *** No rule to make target `/home/lei/HelloWorld/hello.c',
> > needed by `/home/lei/HelloWorld/hello.o'.  Stop.
> > make: *** [_module_/home/lei/HelloWorld] Error 2
> > make: Leaving directory `/usr/src/linux-2.6.5-7.104-default'
> >
> >
> > Appreciate any comments and help!
> >
> > TIA
> > Lei
> >
> >
> >
> > --
> > Kernelnewbies: Help each other learn about the Linux kernel.
> > Archive:       http://mail.nl.linux.org/kernelnewbies/
> > FAQ:           http://kernelnewbies.org/faq/
>
>
>
> --
> Kernelnewbies: Help each other learn about the Linux kernel.
> Archive:       http://mail.nl.linux.org/kernelnewbies/
> FAQ:           http://kernelnewbies.org/faq/

--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/