GDB on SGI Irix 6.5

[Eli Zaretskii]

> From: Elena Zannoni <ezannoni@cygnus.com>
> Date: Tue, 12 Jun 2001 16:03:49 -0400
> 
> Andrew Cagney writes:
>  > [I'll take the liberty of adding Elena and Jim.  Might be useful to pose 
>  > any follow on questions on gdb@]
>  > 
>  > > On Thu, 17 May 2001, David B Anderson wrote:
>  > > 
>  > > 
>  > >> The 64bit dwarf2 that is read by read_initial_length is based on
>  > >> dwarf 2.1, designed in 2000.  SGI 64bit dwarf2 was designed in
>  > >> the early 1990's.  SGI made offsets etc 64bit in elf64
>  > >> (and offsets etc 32bits in elf32).    
>  > >> (basically we could not bring ourselves to limit dwarf 
>  > >> offsets to 32 bits in an elf64 file...)
>  > >> 
>  > >> Anyway,  to be correct for IRIX6,  read_initial_length
>  > >> needs to know it is IRIX elf64 and then
>  > >> /* UNTESTED, NOT ALL THAT NEEDS TO BE DONE probably */
>  > >> cu_header->initial_length_size = 8;
>  > >> cu_header->offset_size = 8;
>  > >> at least gives the right sizes.
>  > > 
>  > > 
> 
> Are these the only differences? Is anything SGI specific encoded in the
> 'version' field of cu_header? Maybe that can be used. Is there somewhere 
> in the debug info a field that tells that this is SGI's version?

I don't see anything in the documents I got from Dave's site.  Dave,
could you please answer these questions?

Thanks for the other advice, I will look that up.