sorry i forgotten to mention that SYMBOLS in /proc/kallsyms are NOT
necessarily declared as EXPORT_SYMBOL.
On Fri, Feb 27, 2009 at 1:26 PM, Peter Teoh <htmldeveloper@xxxxxxxxx> wrote:
> in order for a module to use ANY OF THE symbol from another module, or
> from the core kernel itself, the symbol must be declared as
> EXPORT_SYMBOL in the first place. And then the symbol user side must
> declare "extern" for the symbol before using it.
>
> On Thu, Feb 26, 2009 at 10:32 PM, Sabin <linuxguru75@xxxxxxxxx> wrote:
>> Thanks Matthias,
>> It worked! That was stupidly simple. But that still leaves the actual
>> question - why am I not able to use a symbol exported by kernel. Is
>> there anything to be done before using an exported symbol?
>>
>> Thank you
>> Sabin
>>
>> On Thu, 2009-02-26 at 09:50 +0100, Matthias Kaehlcke wrote:
>>> El Thu, Feb 26, 2009 at 02:02:18PM +0000 Sabin ha dit:
>>>
>>> > I am not able to link with proc_root symbol, though i could see it
>>> > exported in /proc/kallsyms.
>>> > I am trying something like this:
>>> > static void __exit procfs_exit(void)
>>> > {
>>> > remove_proc_entry(PROCFS_NAME,&proc_root);
>>> > printk(KERN_INFO "/proc/%s removed\n",PROCFS_NAME);
>>> > }
>>> >
>>> > have included the following:
>>> > #include <linux/module.h>
>>> > #include <linux/kernel.h>
>>> > #include <linux/proc_fs.h>
>>>
>>> to remove an entry in the root of /proc do:
>>>
>>> remove_proc_entry(PROCFS_NAME, NULL);
>>>
>>
>>
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>>
>
>
>
> --
> Regards,
> Peter Teoh
>
--
Regards,
Peter Teoh
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