On 2/21/06, Gowri Satish Adimulam <gowri@xxxxxxxxxxx> wrote:
> Thanks mr Rodrigues
>
> with the make file you have provided the previous error was gone
>
> but gave a new error
> error message ==================
> cc hello-1.c -o hello-1
> hello-1.c: In function 'cleanup_module':
> hello-1.c:16: error: 'KERN_ALERT' undeclared (first use in this
> function)
> hello-1.c:16: error: (Each undeclared identifier is reported only once
> hello-1.c:16: error: for each function it appears in.)
> hello-1.c:16: error: syntax error before string constant
> make: *** [hello-1] Error 1
>
> end of error message =============
>
> file =================
>
> #include <linux/module.h>
> #include <linux/kernel.h>
>
> int module_init(void)
> {
> printk("<1> Hello World 1. \n");
>
> // a non zero return means loaded failed ; module can't be loaded
>
> return 0;
>
> }
>
> void cleanup_module(void)
> {
> printk(KERN_ALERT "Goodbye world 1, \n");
> }
> end of file ========================
>
> Based on above error message when i replace KERN_ALERT TO <1> .
> try to compile ,
> Iam getting a different error message.
>
> error message=======================
>
> make hello-1
> cc hello-1.c -o hello-1
> /usr/lib/gcc/i386-redhat-linux/4.0.2/../../../crt1.o(.text+0x18): In
> function `_start':
> : undefined reference to `main'
> /tmp/cc0SuMYZ.o(.text+0xf): In function `module_init':
> hello-1.c: undefined reference to `printk'
> /tmp/cc0SuMYZ.o(.text+0x2c): In function `cleanup_module':
> hello-1.c: undefined reference to `printk'
> collect2: ld returned 1 exit status
> make: *** [hello-1] Error 1
>
> end error message =================
>
> I have no clue what to do .
> regards
> Gowri
>
>
>
>
>
> On Tue, 2006-02-21 at 13:44 +0900, Goldwyn Rodrigues wrote:
> > On 2/21/06, Gowri Satish Adimulam <gowri@xxxxxxxxxxx> wrote:
> > > Thanks every body ,
> > > Now the make problem has been solved but a new problem has been emerged
> > >
> > >
> > > gcc -c -O2 -DMODULE -D__KERNEL__ -W -Wall -Wstrict-prototypes
> > > -Wmissing-prototypes -isystem /lib/modules/'uname -r'/build/include -c
> > > -o hello-1.o hello-1.c
> > > In file included from /usr/include/linux/module.h:10,
> > > from hello-1.c:1:
> > > /usr/include/linux/config.h:5:2: error: #error Incorrectly using glibc
> > > headers for a kernel module
> > > hello-1.c: In function 'module_init':
> > > hello-1.c:6: warning: implicit declaration of function 'printk'
> > > hello-1.c: At top level:
> > > hello-1.c:15: warning: no previous prototype for 'cleanup_module'
> > > hello-1.c: In function 'cleanup_module':
> > > hello-1.c:16: error: 'KERN_ALERT' undeclared (first use in this
> > > function)
> > > hello-1.c:16: error: (Each undeclared identifier is reported only once
> > > hello-1.c:16: error: for each function it appears in.)
> > > hello-1.c:16: error: syntax error before string constant
> > > make: *** [hello-1.o] Error 1
> > >
> > > i tried to search in google but could get the exact solution
> > >
> > > Iam using FC4 , kernel 2.6.11-1.1369_FC4.
> > >
> >
> > Try this as the makefile contents:
> >
> > obj-m += hello-1.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
> >
> >
> >
> > As Arjan said, your Makefile is broken. The one I hacve picked is from
> > the latest LKMPG. I think you are compiling it according to the 2.4
> > LKMPG.
> >
> >
> > --
> > Goldwyn
>
>
> --
> Kernelnewbies: Help each other learn about the Linux kernel.
> Archive: http://mail.nl.linux.org/kernelnewbies/
> FAQ: http://kernelnewbies.org/faq/
>
>
True, He has been writing the makefile as it was written for the 2.4
kernel. Well the way of writing the makefiles in the 2.6 kernel is
different from as that of in 2.4 kernel.
Google for more details.
--
Cheers,
Sandeep
A man with one watch knows what time it is; a man with two watches is
never quite sure.
--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive: http://mail.nl.linux.org/kernelnewbies/
FAQ: http://kernelnewbies.org/faq/
