Re: Blackfin and version scripts

[Mike Frysinger]

On Mon, Jul 5, 2010 at 12:50, Kurt Roeckx wrote:
> On Mon, Jul 05, 2010 at 03:43:21AM -0400, Mike Frysinger wrote:
>> On Saturday, July 03, 2010 05:48:13 Kurt Roeckx wrote:
>> > On Tue, Jun 22, 2010 at 11:42:43AM +0200, Werner Koch wrote:
>> > > Hi!
>> > >
>> > >   GCRYPT_1.2 {
>> > >
>> > >     global:
>> > >       gcry_check_version; gcry_control;
>> > >
>> > >   [...]
>> > >
>> > > Blackfin seems to be the only platform which has version script support
>> > > and prefixes symbols with underscores.  That does not work of course.
>> >
>> > blackfins is one of the arches that defined underscores in the
>> > ABI.  But I don't think an application writer should care about
>> > that, and that this is a bug in binutils.
>>
>> no, it isnt.  please read the whole thread and the linker documentation.
>
> I'm not sure which part of the thread you think I missed that said
> anything about it.  Most of it is actually about complelty
> unrelated issues that have nothing to do with bfin.
>
> The only mail that seems to be about it is Ralf's mail about the
> mangling.  But I'm not convinced that libtool should do any
> mangle/demangle thing.  Atleast the gnu linker will already do the
> proper thing for you, but some others might not.
>
> If you think I missed something, please point me to the actual
> mail or documentation.

you stated "it is a bug in binutils".  that is simply wrong.  the
linker script deals in *linker visible* symbols while C code deals in
*C visible*.  it has always been this way and as you indirectly
stated, this is not Blackfin specific.
-mike