Re: Cross compile for SGI IRIX target?

[Kai Ruottu <karuottu at freenet dot hut dot fi>]

Matthew Majka wrote:
> 
> ----- Original Message -----
> From: Avinash Chopde <avinash@acm.org>
> To: <crossgcc@sourceware.cygnus.com>
> Sent: Thursday, June 29, 2000 6:24 AM
> Subject: Cross compile for SGI IRIX target?
> 
> >
> > My preliminary research shows that it is not possible
> > to cross compile for a SGI IRIX (6.x) target, so am looking
> > for any info that I'm wrong!
> >
> > Looks like gcc on SGI requires some libraries (free) from SGI
> > for the final link step (?), which I presume precludes any
> > cross compiling for IRIX?

 Aren't the SGI libs available at all ?  When currently Sun and
SCO deliver their 'Free Unix'es with the system libs, getting
something similar from SGI would be expected... Anyway the 'Irix'
is just one of those SVR4/MIPS variations like SNI 'Sinix, the
Pyramid, Tandem, DDE etc. ones with 'proprietary' names...

 The SVR4/MIPS docs used to be available with other SVR4 docs via :
     www.sco.com/developer/devspecs

 Some MIPS ABI docs, like :

	MIPS Processor
	ABI Conformance Guide
	Version 3.0 DRAFT 4
	MIPS ABI Group, Inc.
	http://www.mipsabi.org/

may now be missing when the www.mipsabi.org died... Does SGI have
them still ?  I managed to download them while they still were
available.
 
> I don't think the GNU assembler or linker support IRIX 6, so
> that would be the limiting factor at this point.  The assembler
> does support IRIX 5.3, IIRC, but the linker does not support
> any versions of IRIX that I know of.

 Perhaps the situation has been changed... A guy from DDE in
India worked with the 'traditional-elf32bsmip' and got the GNU
ld to work with producing normal, shared-libs-using executables
and statically linked executables. To produce shared libs too...
He also made new startup/exits, 'crt1.S', 'crti.S' and 'crtn.S'...

 I think that it could be possible to build newlib for a generic
32-bit 'mips-sysv4', as a static library. I built it for a
generic 'x86-sysv4' a year or more ago, but the 'mips-sysv4' was
left untested (no machine available for testing...).

Cheers, Kai



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