bunty wrote:
Hello Bhavpreet,
Is that independent module program? Have you written it for separate execution? I tried it on my linux RH9 with same makefile and i got following errors.
[parag@router1 parag]# make
make: Circular parag <- parag dependency dropped.
gcc -O2 -DMODULE -D__KERNEL__ -isystem /lib/modules/`uname -r`/build/include -o .c
gcc: no input files
make: *** [.c] Error 1
If this Makefile can be integrated in linux kernel then where can i include it in kernel? I want my module programs to be compiled with other files in kernel compilation.
regards, Parag.
On Fri, 10 Dec 2004 Bhavpreet Singh wrote :
>bunty wrote:
>
>
>Hello,
> I have written 2 modules that i want to be loaded each time kernel
>has been loaded. I add them in kernel directory of kernel source but i
>am getting following error
>deny2.o(.text+0x50): In function `init_module':
>: multiple definition of `init_module'
>deny1.o(.text+0x190): first defined here
>ld: Warning: size of symbol `init_module' changed from 110 to 57 in
>deny2.o
>deny2.o(.text+0x90): In function `cleanup_module':
>: multiple definition of `cleanup_module'
>deny1.o(.text+0x200): first defined here
>ld: Warning: size of symbol `cleanup_module' changed from 29 to 17 in
>deny2.o
>make[2]: *** [kernel.o] Error 1
>make[2]: Leaving directory `/usr/src/linux-2.4.24-module/kernel'
>make[1]: *** [first_rule] Error 2
>make[1]: Leaving directory `/usr/src/linux-2.4.24-module/kernel'
>make: *** [_dir_kernel] Error 2
>Both kernel modules have following similar calls code
>static void __init init(void)
> {
> nfho.hook = hook_func;
> nfho.hooknum = NF_IP_POST_ROUTING;
> nfho.pf = PF_INET;
> nfho.priority = NF_IP_PRI_FIRST;
> nf_register_hook(&nfho);
> > }
>static void __exit fini(void)
> {
> nf_unregister_hook(&nfho);
> }
>module_init(init);
>module_exit(fini);
>MODULE_LICENSE("GPL");
>how to solve this error?
>regards,
>parag.
>
>parag,
>Things work fine for me.
>I did the following:
><++>parag.c<++>
>#include <linux/module.h>
>#include <linux/kernel.h>
>#include <linux/netdevice.h>
>#include <linux/netfilter.h>
>#include <linux/netfilter_ipv4.h>
>#include <linux/time.h>
>#include <linux/slab.h>
>#include <linux/sched.h>
>#include <net/sock.h>
>static struct nf_hook_ops nfho;
>unsigned int hook_func(unsigned int hooknum,
> struct sk_buff **skb,
> const struct net_device *in,
> const struct net_device *out,
> int (*okfn)(struct sk_buff *))
>{
> return NF_ACCEPT;
>}
>static void __init init(void)
>{
> nfho.hook = hook_func;
> nfho.hooknum = NF_IP_POST_ROUTING;
> nfho.pf = PF_INET;
> nfho.priority = NF_IP_PRI_FIRST;
> nf_register_hook(&nfho);
>}
>static void __exit fini(void)
>{
> nf_unregister_hook(&nfho);
>}
>module_init(init);
>module_exit(fini);
>MODULE_LICENSE("GPL");
><--> parag.c <-->
><++> Makefile <++>
>TARGET := parag
>WARN := -W -Wall -Wstrict-prototypes -Wmissing-prototypes
>WARN :=
>INCLUDE := -isystem /lib/modules/`uname -r`/build/include
>CFLAGS := -O2 -DMODULE -D__KERNEL__ ${WARN} ${INCLUDE}
>CC := gcc
>all: ${TARGET}.o
>${TARGET}.o: ${TARGET}.c
>.PHONY: clean
>clean:
> rm -rf ${TARGET}.o
><--> Makefile <-->
>Cheers!
> /|\ /\ ><
>TheMatrixTen
>--
>Kernelnewbies: Help each other learn about the Linux kernel.
>Archive: http://mail.nl.linux.org/kernelnewbies/
>FAQ: http://kernelnewbies.org/faq/
>
>
<http://clients.rediff.com/signature/track_sig.asp>
There is something wrong with the make file you are using, its running fine on RH9
also with: 2.4.20-8
-------------------snip--------------------- $ cat Makefile TARGET := parag WARN := -W -Wall -Wstrict-prototypes -Wmissing-prototypes WARN := INCLUDE := -isystem /lib/modules/`uname -r`/build/include
CFLAGS := -O2 -DMODULE -D__KERNEL__ ${WARN} ${INCLUDE}
CC := gccall: ${TARGET}.o${TARGET}.o: ${TARGET}.c.PHONY: clean
clean:
rm -rf ${TARGET}.o
$ make
gcc -O2 -DMODULE -D__KERNEL__ -isystem /lib/modules/`uname -r`/build/include -c -o parag.o parag.c
parag.c: In function `__init_module_inline':
parag.c:41: warning: return from incompatible pointer type
$ ls
Makefile parag.c parag.o
$
------------------snip-----------------
you might try to run :
gcc -O2 -DMODULE -D__KERNEL__ -isystem /lib/modules/`uname -r`/build/include -c -o parag.o parag.c
/|\ /\ >< TheMatrixTen
-- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
