On Thu, May 03, 2007 at 02:58:02PM +0200, zoraida hidalgo wrote:
> Hello,
>
> i'm trying to add a new kernel module to my ubuntu. I want to insert a new
> executable interpreter in order to create a new executable format. I have
> changed the magic number of an elf executable and I have used the
> /fs/binfmt_elf.c. to generate the new interpreter modifying this file to
> recognize my executable's magic number. When I try to compile my module
> with
> this make file:
>
> MOD=binfmt_elfOS
> KMOD=$(MOD).ko
> obj-m += $(MOD).o
> all:
> make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
>
> clean:
> make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
>
>
> the displayed message is
First, look at the warnings during compilation.
>>> make
> make -C /lib/modules/2.6.20-15-386/build M=/home/zeta/phd/loader modules
> make[1]: se ingresa al directorio `/usr/src/linux-headers-2.6.20-15-386'
> CC [M] /home/loader/binfmt_elfOS.o
> /home/loader/binfmt_elfOS.c: En la función 'load_elf_binary':
> /home//loader/binfmt_elfOS.c:525: aviso: ISO C90 prohíbe las declaraciones
> mezcladas y código
> /home/loader/binfmt_elfOS.c:757: aviso: declaración implícita de la
> función
> 'sprint'
Typo, correct might be sprintf().
> /home/loader/binfmt_elfOS.c:774: aviso: declaración implícita de la
> función
> 'steal_locks'
No longer available since kernel 2.6.18.
>...
> MODPOST 1 modules
>...
> WARNING: "randomize_va_space" [/home/loader/binfmt_elfOS.ko] undefined!
>...
Not exported to modules (might also be the case for some of the others).
> Could anyone help me?
>
> Thanks!
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
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