[RFA/RFC] try ignoring bad PLT entries in ELF symbol tables

[Joel Brobecker]

> gdb/ChangeLog:
> 
>         * elfread.c (elf_symtab_read): Ignore undefined symbols with
>         nonzero addresses if they do not correspond to a .plt section
>         when one is available in the objfile.

This patch is now in HEAD.

-- 
Joel