Re: uclibc mips ld.so and undefined symbols with nonzero symbol table entry st_value

[Richard Sandiford <rsandifo@redhat.com>]

"Bradley D. LaRonde" <brad@laronde.org> writes:
> I read this in the spec:
>
>     All externally visible symbols, both defined and undefined,
>     must be hashed into the hash table.
>
> Should libpthread's malloc stub be added to the hash table?

Yes.

> I guess not, but I think that might be happening (haven't verified),
> and libdl finding it in there and thinking it is the real deal, not
> realizing it is just a stub.

If you have an undefined function symbol with st_value != 0, then
that st_value must be for a stub.  That's how the loader can (and is
supposed to) tell the difference.

It's probably a good idea to look at how glibc handles this.

Richard