Centralized building

[Eirik Øverby]

On Nov 20, 2005, at 09:50 , Eirik Øverby wrote:

>
> On Nov 19, 2005, at 19:43 , Joseph Koshy wrote:
>
>>> AFAICT cross-compiling amd64 on a i386 machine isn't supported
>>> yet. I ran into a similar problem when I upgraded an i386
>>> machine to amd64. I thought I could just set CPUTYPE=athlon-64
>>> and buildworld would do the right thing. Apparently not.
>>
>> Bootstrapping a single machine is supported:
>>
>> # make buildworld TARGET_ARCH=new-arch
>>
>> plus a few other steps.  (See build(7)).
>>
>> There have been a couple of postings on the mailing lists
>> on this topic in the recent past.  I've taken a stab at
>> describing how to cross-bootstrap too:
>>
>> http://edoofus.blogspot.com/2005/10/cross-building-freebsd.html
>>
>> The OP wanted to do a 'buildworld TARGET_ARCH=foo' on one
>> machine and then an 'installworld' on a different set of
>> machines.
>
> Yes, and he still wonders if this is supposed to be doable or not.
> I think the culprit is (partly) the fact that every architecture is  
> built into its own subdirectory in /usr/obj, EXCEPT the  
> architecture the build is running on. The same goes for the install  
> part, and if the build and install architectures differ, it cannot  
> ever work. Setting MAKEOBJDIRPREFIX on the target host makes the  
> install start, but it fails after a couple of minutes with the "dd:  
> not found" error.
> (I do notice that there is a /usr/obj/usr directory created also  
> when cross-building; I'm assuming this contains the build bootstrap  
> tools).

Follow-up. If I enter src/sys and do a "make install", the dd step  
works perfectly - however it stops later when trying to install  
cdboot. I am assuming this is due to missing options or wrong target  
for make, but - from all I can tell - shows a weakness in the build/ 
install system. Or maybe not...

Anyone??

/Eirik

>
>
>
>>
>> --
>> FreeBSD Volunteer,     http://people.freebsd.org/~jkoshy
>>
>>
>
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