Re: Trouble building -current

On Sun, 7 Nov 2004 13:15:54 -0800
Michael Wolfson <[email protected]> wrote:

> I've tried cross-compiling an hp700 snapshot from a 2.0_BETA sparc64 
> system and from a MacOS X 10.3.5 system.  They're the only hardware 
> I've got with enough horsepower/disk space to try this.
> 
>   compiling GENERIC kernel for hp700 fails "error: unrecognizable
>   insn"
> 	http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=28065
This is a knowen problem. GCC has 64 bit bugs, at least the PA-RISC
backend. This bug occures on all 64 bit build hosts. (I tried Alpha and
UltraSPARC). Work arounds are to compile the affected file with an other
optimization level or to use a 32 bit build host. (I use a 32 bit kernel
on my Ultra 5 with sparc userland for this purpose.) As I am no GCC
expert I have to leave the real solution open for the toolchain gurus.

Beware: Even on 32 bit machines only -O0 can be trusted. You may use -O1
or -O2 without problems in the first sight, but be prepared for some
funky compiler bugs that show up at runtime of the generated binaries.

>   cross-building of hp700 from Darwin fails when using "join"
> 	http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=28075
Don't know about this. Usually I do hp700 buils on SGI IRIX and
sometimes on sparc64 with 32 bit kernel.

> Any suggestions appreciated (or a self-hosting snapshot that works on 
> my 735/99).
There should be somthing in the snapshoot area of ftp://ftp.netbsd.org/
I hope to get some time for NetBSD in the next weeks to build a new
snapshoot and finalize some pending work.
-- 


tschüß,
       Jochen

Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/