Re: powerpc-elf ld crashes

[Alan Modra]

On Sun, Mar 03, 2002 at 02:47:39PM -0800, Ryan T. Sammartino wrote:
> 
> ld is configured for powerpc-elf, and whenever it tries to resolve
> relocations in a proprietary library that I need to use (this library
> contains things like crt0.o for the particular embedded system I'm
> working on) it crashes at line 6603 of bfd/elflink.h:
> 
> - has anyone else every seen this?  If so, what was the fix/workaround?

No.

> - what does it mean when h is NULL?  Or is the problem that r_symndx
>   and/or extsymoff are incorrect?

h NULL here implies your object file doesn't adhere to the ELF standard,
and has some local symbols after the first global sym in the symbol
table, or that there is a problem in mapping the symbol section.  You
can easily check for the first case by dumping the symbol table with
readelf -s.  For some reason, code to handle this situation is only
enabled for mips targets.

The second case means you have hit the "Who knows?" comment at
elflink.h:6439.  Looking at isym might show something interesting.

> - what's a good place to start figuring out how ld works if you've never
>   worked with its internals before? :)

Start at the beginning.  :)

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre