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
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