modules/ksyms/filenames

modules/ksyms/filenames

[Peter J. Braam]

I'm trying to export a symbol (journal_begin/end) from
fs/reiserfs/journal.c. To export the symbols I added to the Makefile:
export-objs := journal.o

There is also a file fs/jbd/journal.c which exports symbols. 

It seems that the two journal.ver files in include/modules/*.ver get
clobbered.

Short of renaming files, is there a good solution for this? 

Thanks!

Re: modules/ksyms/filenames

[Stephen C. Tweedie]

Hi,

On Thu, Jul 19, 2001 at 03:54:00PM -0600, Peter J. Braam wrote:
> I'm trying to export a symbol (journal_begin/end) from
> fs/reiserfs/journal.c. To export the symbols I added to the Makefile:
> export-objs := journal.o
> 
> There is also a file fs/jbd/journal.c which exports symbols. 
> 
> It seems that the two journal.ver files in include/modules/*.ver get
> clobbered.
> 
> Short of renaming files, is there a good solution for this? 

Yes, you can add the EXPORT_SYMBOL to a different source file --- you
don't have to do the export from the same file which defines the
symbol.  linux/kernel/ksyms.c contains exports from all over the rest
of the kernel, for example.  If you pick a reiserfs source file which
already exports symbols and add your exports there, I _think_ it
should work OK.

Cheers,
 Stephen

Re: modules/ksyms/filenames

[Keith Owens]

On Thu, 19 Jul 2001 15:54:00 -0600, 
"Peter J. Braam" <braam@clusterfs.com> wrote:
>I'm trying to export a symbol (journal_begin/end) from
>fs/reiserfs/journal.c. To export the symbols I added to the Makefile:
>export-objs := journal.o
>
>There is also a file fs/jbd/journal.c which exports symbols. 

It is a "feature" of the module symbol versioning that all objects
which export symbols must have globally unique basenames.  Stupid, I
know, and it will disappear in 2.5.  In the meantime, create
fs/reiserfs/reiserfs_ksyms.c and export the symbols in there.  See
kernel/ksyms.c for an example.