on 29/09/2010 17:44 PL said the following:
> Dnia 29-09-2010 o godz. 16:23 Andriy Gapon napisał(a):
>> on 29/09/2010 17:13 PL said the following:
>>> It seems like it is not a problem in my own code, since readelf -S on a
>>> elf file
>>> gives me the same results as my debug messages. I've created an empty
>>> module, to
>>> simplify debugging. Both my code, and readelf says, that '.text' section
>>> address
>>> is 0x3e0, and its size is 7 bytes. Adding 0x3e0 to lf->address points to
>>> a valid location.
>>>
>>> '.data' is supposed to be at 0x1424 (again, both my code and readelf
>>> returns the same thing),
>>> but the actual data starts at lf->address + 0x3e7. How do I know ? I've
>>> added global
>>> initialized string variable in empty test module, and Im looking at the
>>> memory to determine
>>> it's location. I'm not sure what is wrong then.
>>
>>
>> Can you post a link to the compiled test module?
>>
>> --
>> Andriy Gapon
>
> Well.. i don't have any public 'hosting', but I put it in here:
>
> http://www.4shared.com/dir/LHn_I393/sharing.html
>
> Also, the code is as simple as:
>
> 1 #include <sys/param.h>
> 2 #include <sys/kernel.h>
> 3 #include <sys/module.h>
> 4
> 5
> 6 char *str = "THIS IS A STR MARKING DATA START";
You marker was put into .rodata section.
Try char str[] instead.
> 8 static int kms_null_handler(module_t m, int op, void *data)
> 9 {
> 10 return (0);
> 11 }
> 12
> 13 static moduledata_t kms_null_data = {
> 14 "kms_null",
> 15 kms_null_handler,
> 16 NULL,
> 17 };
> 18
> 19 DECLARE_MODULE(kms_null, kms_null_data, SI_SUB_EXEC, SI_ORDER_ANY);
>
> It is being compiled on i386/GENERIC kernel.
>
>
--
Andriy Gapon
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