[EXT] Re: gdb does not stop at printf for ppc

Florian Weimer fweimer@redhat.com
Thu Oct 2 16:58:46 GMT 2025


* Peter Bergner via Libc-help:

> Ok, it's an even bigger problem than we thought.  I'm surprised no one
> else has hit this before us.

We've encountered it with fortification and IFUNC resolvers.  It used to
be considered a user error.

> Ok, this is promising and yeah, is what Carl and Uli suggested.
> That said, their comment from the bugzilla:
>
>     The new redirected symbols need to be dynamic symbols in case only
>     the stripped binary is available.

I'd recommend distributions do not strip .symtab on libc.so.6.  I don't
think making this a dynamic symbol is worth it.  It would have to be a
compatibility symbol under a separate symbol version, one for each
variant alias (eight for POWER?).  This is quite a bit of complexity.

Thanks,
Florian



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