Problems in exporting symbols

Problems in exporting symbols

[kumar M]

Hi,

I am attempting to process Scsi Requests for implementaion of a
customised target mode driver through my kernel module.
FOr achieving this, I have declared a global pointer 'my_request' of
Scsi_Request type, and duly  allocated (using scsi_allocate_request ) in the 
scan_scsis_single function.
I am exporting the symbol through the EXPORT_SYMBOL macro in scsi_syms.c. I 
observe that scsi_allocate_request goes thorugh fine, and able to initialise 
it.
Howewver, when I reference the same in my module while processing
at a later stage, I am obtaining an unresolved external  for
'my_request' while loading my module.
I am able to see the variable in /proc/kysms as :
my_request_R__ver_my_request

Can I get any inputs on why I am facing this problem ?
TIA,
Kumar



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Re: Problems in exporting symbols

[Keith Owens]

On Fri, 30 Nov 2001 11:07:17 +0000, 
"kumar M" <kumarm4@hotmail.com> wrote:
>my_request_R__ver_my_request

Gee, it must be at least a week since I pointed somebody at the FAQ
entry for this.  http://www.tux.org/lkml/#s8-8

Re: Problems in exporting symbols

[kumar M]

Hi,

I am getting a kernel mismatch error when I insmod a binary module
compiled on a 2.4.2 kernel (kernel name say linux-2-4-2-v1) on a different 
system with the same 2.4.2 kernel  but with  a different kernel name 
(linux-2-4-2-v2). I dont want to recompile the module everytime I give a new 
name to a kernel or for every different system.
How do I fix this problem ?

TIA,
Kumar



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Re: Problems in exporting symbols

[Keith Owens]

On Sat, 05 Jan 2002 14:43:20 +0000, 
"kumar M" <kumarm4@hotmail.com> wrote:
>I am getting a kernel mismatch error when I insmod a binary module
>compiled on a 2.4.2 kernel (kernel name say linux-2-4-2-v1) on a different 
>system with the same 2.4.2 kernel  but with  a different kernel name 
>(linux-2-4-2-v2). I dont want to recompile the module everytime I give a new 
>name to a kernel or for every different system.
>How do I fix this problem ?

Try insmod -f, but don't complain if it destroys your system.  Modules
tend to be very kernel specific, forcing a module load into a different
kernel is a good way to kill your machine.

Re: Problems in exporting symbols

[Vikram]

look at Documentation/Configure.help and specifically the
CONFIG_MODVERSION option.....

hope this helps.

	Vikram


On Sat, 5 Jan 2002, kumar M wrote:

> Hi,
>
> I am getting a kernel mismatch error when I insmod a binary module
> compiled on a 2.4.2 kernel (kernel name say linux-2-4-2-v1) on a different
> system with the same 2.4.2 kernel  but with  a different kernel name
> (linux-2-4-2-v2). I dont want to recompile the module everytime I give a new
> name to a kernel or for every different system.
> How do I fix this problem ?
>
> TIA,
> Kumar
>
>
>
> _________________________________________________________________
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