Hi Peter,
that makes sense. i dont see the symbol EXPORT_SYMBOLed.
Thanks
Sabin
On Fri, 2009-02-27 at 12:44 +0530, Sandeep K Sinha wrote:
> On Fri, Feb 27, 2009 at 10:58 AM, Peter Teoh <htmldeveloper@xxxxxxxxx> wrote:
> > sorry i forgotten to mention that SYMBOLS in /proc/kallsyms are NOT
> > necessarily declared as EXPORT_SYMBOL.
> >
>
>
> But the reverse is true, Right ?
>
>
>
>
>
> > 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);
> >>>>
> >>>
> >>>
> >>> --
> >>> To unsubscribe from this list: send an email with
> >>> "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx
> >>> Please read the FAQ at http://kernelnewbies.org/FAQ
> >>>
> >>>
> >>
> >>
> >>
> >> --
> >> Regards,
> >> Peter Teoh
> >>
> >
> >
> >
> > --
> > Regards,
> > Peter Teoh
> >
> > --
> > To unsubscribe from this list: send an email with
> > "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx
> > Please read the FAQ at http://kernelnewbies.org/FAQ
> >
> >
>
>
>
--
To unsubscribe from this list: send an email with
"unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx
Please read the FAQ at http://kernelnewbies.org/FAQ
