🚀 go-pugleaf

In article HMM@world.std.com, moshier@world.std.com (Stephen L Moshier) writes:
>
>
>
>  For several years I've been trying off and on to get gcc running on an
>old Motorola Delta box.  The unix system identifies itself as System
>V/68 M68020 R2V2.2, copyright 1985.
>
>  By supplying a minimal config.h, I can get cccp to compile with some
>complaints about enums.  The unix compiler supports structure
>assignments, but apparently not reentrantly in subroutine returns. 
>cccp crashes with a core dump almost immediately.
>
>  Has anyone succeeded porting to this system, and if so what is the
>trick?
>
>  Thanks,
>
>  Steve Moshier
>  moshier@world.std.com


Wow! I thought we were the only ones in the world with Motorola Delta boxes of that
vintage. I have managed to get gcc built on one of those boxes; however we're running
a much newer release of the OS (R3V6.2). I had previously tried to build it on a system
running R3V5 but couldn't get it to work. It took on the order of 4-6 HOURS to compile
one of the first parts of the system and eventually blew up because of some HUGE macro 
expansion in the code, as I remember. If you have the option, I would suggest trying
to obtain a software upgrade - there are so many fixes and changes (including 
addition of networking and X-windows support), not to mention C compiler bug fixes,
since R2V2 that I wouldn't attempt to build it there.

Andy Wolff
aaw@cray.com

Motorola stopped supporting this particular box years ago; it's not
worth the $1200 they asked for an only slightly later unix version.

If it's true that the structure assignments are the problem, I will
attempt a cross-compilation on another machine.  If that doesn't
work, I'll throw the unix away and put OS-9 on it.  There is a gcc
port that should work.

In article <C0CHrq.HMM@world.std.com> moshier@world.std.com (Stephen L Moshier) writes:


>     For several years I've been trying off and on to get gcc running on an
>   old Motorola Delta box.  The unix system identifies itself as System
>   V/68 M68020 R2V2.2, copyright 1985.

Furtheron I will assume MVME130/MVME131 - based...

>     By supplying a minimal config.h, I can get cccp to compile with some
>   complaints about enums.  The unix compiler supports structure
>   assignments, but apparently not reentrantly in subroutine returns. 
>   cccp crashes with a core dump almost immediately.

You will have problems with  your current C-compiler, it 
will not be able to evaluate branches around "LEGITMIZE_xxx_ADDRESS",
(if ..(if (if ()))). 
This is due to tables choosen too small during setup. There were fixes
available from Motorola.

Trick I used to bootstrap gcc on Motorola systems years ago was to
build a cross compiler on a system with approbriate endian ;->,
move all include files from Motorola to the cross development system,
making _SURE_, that these will be used,
and compile the sources to assembler sources, which were assembled
on the target system.

C-compilers delivered by Motorola (except Green Hills, which I never tested)
never were able to compile any GCC-sources (No, even not 1.3[7-9]).

You might have a llok at 
	"ftp.th-darmstadt.de:/pub/incoming/local_ports/sysV68".

hope it helps, adams

PS: mail referring to GNU-software should be sent to
	"gnu@pdv2.fmr.maschinenbau.th-darmstadt.de".