LD [M] /home/praval/cprog/lkm/misc/tapas.ko
make[1]: Leaving directory `/usr/src/kernels/2.6.27.25-78.2.56.fc9.i686'
it is
#include
not
#include
--- On Mon, 23/8/10, Tapas Mishra wrote:
From: Tapas Mishra
Subject: Re: linux/module.h does not exist
To: "SPK"
Cc: k
Sharad you are right.
It did worked I got a warning in it.
make -C /lib/modules/2.6.28-11-generic/build
M=/home/tapas/LKP/pandora/temp/sample2 modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.28-11-generic'
CC [M] /home/tapas/LKP/pandora/temp/sample2/sample21.o
/home/tapas/LKP/p
On Mon, Aug 23, 2010 at 9:59 PM, Tapas Mishra wrote:
> No It did not worked I tried what you said.
> Here is the new program.
> If possible just copy paste the program and try to run.
>
> #include
> #include
> #include
> #include
> extern void *sys_table[];
> asmlinkage int(*main_sys_exit)(int
No It did not worked I tried what you said.
Here is the new program.
If possible just copy paste the program and try to run.
#include
#include
#include
#include
extern void *sys_table[];
asmlinkage int(*main_sys_exit)(int);
asmlinkage int alt_exit_function(int err_code)
{
printk("Sys_e
On Sun, Aug 22, 2010 at 11:58 PM, Tapas Mishra wrote:
> On Sun, Aug 22, 2010 at 8:49 PM, arshad hussain
> wrote:
> > Ok. So you included linux/syscalls.h instead of sys/syscalls.h
> > and still it cannot find
> Yes this is what happened
> >"__NR_exit" symbol. Right? Or it
> > compiled successfull
On Sun, Aug 22, 2010 at 8:49 PM, arshad hussain wrote:
> Ok. So you included linux/syscalls.h instead of sys/syscalls.h
> and still it cannot find
Yes this is what happened
>"__NR_exit" symbol. Right? Or it
> compiled successfully but did not load.
Not reached here.
--
Tapas
http://mightydrea
On 8/22/2010 12:39 PM, Tapas Mishra wrote:
He he tried what you said.
I wont 2 cents :)
It did not worked
Ok. So you included linux/syscalls.h instead of sys/syscalls.h
and still it cannot find "__NR_exit" symbol. Right? Or it
compiled successfully but did not load.
--snip--
sys/syscall
Ok I corrected the make file there should have been a blank space here
is the new make file for the program
ifeq ($(KERNELRELEASE),)
KERNELDIR ?= /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)
.PHONY: build clean
build:
$(MAKE) -C $(KERNELDIR) M=$(PWD) modules
clean:
rm -
On Sun, Aug 22, 2010 at 6:11 PM, Robert P. J. Day wrote:
>
> i'm just catching up with this thread and, if i read it correctly,
> the goal is to build a loadable kernel module using the proper
> incantation and options on the gcc command line, is that correct?
Yes yes right
>but
> i'm not sure i
On Sun, 22 Aug 2010, Mulyadi Santosa wrote:
> On Sun, Aug 22, 2010 at 12:41, Tapas Mishra wrote:
> >
> > Following is the program for which it was Makefile I am mentioning it
> > here for the sake of clarity so that you dont have to read first post
> >
> > #include
> > #include
> > #include
>
On Sun, Aug 22, 2010 at 1:48 PM, Mulyadi Santosa
wrote:
>
> uhum? AFAIK sys call table is not exported in 2.6.x so even if
> your code is perfectly compiled and produced valid .ko kernel module,
> I doubt it will work.
> Unless I missed something in recent development
>
> Regarding the m
On Sun, Aug 22, 2010 at 12:41, Tapas Mishra wrote:
>
> Following is the program for which it was Makefile I am mentioning it
> here for the sake of clarity so that you dont have to read first post
>
> #include
> #include
> #include
> extern void *sys_table[];
^^^
uhum? AFAIK sys call table is
He he tried what you said.
I wont 2 cents :)
It did not worked
Following is new program
#include
#include
#include
extern void *sys_table[];
asmlinkage int(*main_sys_exit)(int);
asmlinkage int alt_exit_function(int err_code)
{
printk("Sys_exit called with err_code=%d\n",err_code);
On 8/22/2010 11:11 AM, Tapas Mishra wrote:
/home/tapas/LKP/pandora/temp/sample2/sample2.c:2:25: error:
sys/syscall.h: No such file or directory
My 2 cents ...
#includehttp://lxr.linux.no/linux+*/include/linux/syscalls.h>> , try this include.
Thanks
Ok I did try what you suggested.
From
http://tldp.org/LDP/lkmpg/2.6/html/x181.html#AEN189
here is my Makefile
obj-m += sample2.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
but I got same err
On Sat, Aug 21, 2010 at 13:59, Tapas Mishra wrote:
> Upto this point I have tried
>
> Step1) gcc -Wall -DMODULE -D__KERNEL__ -DLINUX -c sample2.c
> Step2) added -I to gcc flag
> gcc -Wall -DMODULE -D__KERNEL -DLINUX -I
> /usr/src/linux-headers-2.6.28- 11/include/ -c sample2.c
I've just realized t
Upto this point I have tried
Step1) gcc -Wall -DMODULE -D__KERNEL__ -DLINUX -c sample2.c
Step2) added -I to gcc flag
gcc -Wall -DMODULE -D__KERNEL -DLINUX -I
/usr/src/linux-headers-2.6.28- 11/include/ -c sample2.c
Step3) added one more -I with asm in path
gcc -I /usr/src/linux-headers-2.6.28-11/a
Hi Tapas,
On Fri, Aug 20, 2010 at 10:35 PM, Tapas Mishra wrote:
> Ok I did
>
> gcc -I /usr/src/linux-headers-2.6.28-11/arch/x86/include/ -I
> /usr/src/linux-headers-2.6.28-11/include/ -c sample2.c
I tried a few other variants and couldn't get them to work either.
The only thing I've been able t
Hi Tapas,
On Fri, Aug 20, 2010 at 10:24 PM, Tapas Mishra wrote:
> Ya you were right I tried the following this time
> gcc -I /usr/src/linux-headers-2.6.28-11/arch/x86/include/asm/ -I
> /usr/src/linux-headers-2.6.28-11/include/linux/ -c sample2.c
Almost there. why did you modify your original pat
Hi Tapas,
On Fri, Aug 20, 2010 at 10:27 PM, Dave Hylands wrote:
> Hi Tapas,
>
> On Fri, Aug 20, 2010 at 10:24 PM, Tapas Mishra wrote:
>> Ya you were right I tried the following this time
>> gcc -I /usr/src/linux-headers-2.6.28-11/arch/x86/include/asm/ -I
>> /usr/src/linux-headers-2.6.28-11/inclu
Apart from what you said I notice adding /linux to reduces the errors.
So when I tried
gcc -I /usr/src/linux-headers-2.6.28-11/arch/x86/include/asm/ -I
/usr/src/linux-headers-2.6.28-11/include/linux/ -c sample2.c
got less errors
sample2.c:3:26: error: linux/module.h: No such file or directory
sam
Hi Tapas,
On Fri, Aug 20, 2010 at 9:34 PM, Tapas Mishra wrote:
> Ohh Ok now it becomes a bit clear,
>
>
> On Sat, Aug 21, 2010 at 8:51 AM, Dave Hylands wrote:
>>
>> This one:
>> /usr/src/linux-headers-2.6.28-11/include/linux/module.h
>>
>> I suspect that you'll also need to add
>> /usr/src//usr/
Ohh Ok now it becomes a bit clear,
On Sat, Aug 21, 2010 at 8:51 AM, Dave Hylands wrote:
>
> This one:
> /usr/src/linux-headers-2.6.28-11/include/linux/module.h
>
> I suspect that you'll also need to add
> /usr/src//usr/src/linux-headers-2.6.28-11/arch/x86/include/asm to your
> search path.
Ok is
Hi Tapas,
Replying to all this time...
On Fri, Aug 20, 2010 at 6:07 PM, Tapas Mishra wrote:
> Also I did a find on module.h which of them among here should I include?
This one:
/usr/src/linux-headers-2.6.28-11/include/linux/module.h
I suspect that you'll also need to add
/usr/src//usr/src/linu
Also I did a find on module.h which of them among here should I include?
As some one pointed out to use -I flag
/usr/src/linux-headers-2.6.28-11-generic/include/linux/module.h
/usr/src/linux-headers-2.6.28-11/arch/alpha/include/asm/module.h
/usr/src/linux-headers-2.6.28-11/arch/x86/include/asm/mod
Yes you were right I had missed one line
following.
asmlinkage int alt_exit_function(int err_code)
I have added this line so the program becomes now
#include
#include
#include
extern void *sys_table[];
asmlinkage int(*main_sys_exit)(int);
asmlinkage int alt_exit_function(int err_code)
{
Hi Tapas,
Replying to all this time...
On Fri, Aug 20, 2010 at 12:52 AM, Tapas Mishra wrote:
> Hi Dave I could not understand your reply.
>
Go back to page 48 of the PDF, and look at the example. And then look
at the code you posted. It's missing a line in the spot I indicated.
--
Dave Hylands
> GCC does not have information about compiling the kernel. The
> information that you were suggested to read it how to configure GCC so
> it can find the kernel headers.
I checked these 2 documents
http://www.open-std.org/JTC1/SC22/wg14/www/docs/n1124.pdf
http://gcc.gnu.org/onlinedocs/gcc-4.4.4/g
On Fri, Aug 20, 2010 at 15:29, Wouter Simons wrote:
> Your compiler should be told where to find the header files that are in
> the kernel sources.
Which is exactly I suggest Tapas to check the -I ("i" capital, no "el") :)
--
regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blo
On 08/20/2010 01:53 AM, Tapas Mishra wrote:
> Ok
> I looked at man page of gcc and searched for
> DMODULE D__KERNEL and DLINUX got following
>
> Pattern not found (press RETURN)
GCC does not have information about compiling the kernel. The
information that you were suggested to read it how to co
Hi Dave I could not understand your reply.
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Hi Tapas,
On Wed, Aug 18, 2010 at 9:12 AM, Tapas Mishra wrote:
> I wrote following program in my home directory.
>
> #include
> #include
> #include
> extern void *sys_table[];
> asmlinkage int(*main_sys_exit)(int);
You seem to be missing the line of code that goes here
> {
> print
Ok
I looked at man page of gcc and searched for
DMODULE D__KERNEL and DLINUX got following
Pattern not found (press RETURN)
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"unsubscribe kernelnewbies" to ecar...@nl.linux.org
Please read the FAQ at http://kernelnewbies.org/FAQ
Hi...
On Wed, Aug 18, 2010 at 23:12, Tapas Mishra wrote:
> When I compiled it as
>
>
> gcc -Wall -DMODULE -D__KERNEL__ -DLINUX -c sample2.c[/code]
>
> I got following error
>
>
> sample2.c:3:26: error: linux/module.h: No such file or directory
IMO it's because you forgot to tell gcc on where to
I was able to write my first module and saw that in syslog.
I am trying this code from here
https://docs.google.com/fileview?id=0B2A4urYOAf6POTI1OGE1MjctM2UyMC00OGUzLThlNDUtZDBhOWFjY2Y1MDUz&hl=en
page 48 left hand section.
Headers are installed.
sudo apt-get install linux-headers-generic
[sudo]
Hi Taps,
On Wed, Aug 18, 2010 at 9:12 AM, Tapas Mishra wrote:
> I wrote following program in my home directory.
...snip...
gcc -Wall -DMODULE -D__KERNEL__ -DLINUX -c sample2.c[/code]
...snip...
> What is the above error and why is it coming?
> I did all this in my home directory.
You're trying
I wrote following program in my home directory.
#include
#include
#include
extern void *sys_table[];
asmlinkage int(*main_sys_exit)(int);
{
printk("Sys_exit called with err_code=%d\n",err_code);
return main_sys_exit(err_code);
}
int init_module()
{
main_sys_exit=sys_t
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