Making World For amd64

[Kris Kennaway]

Tim Daneliuk wrote:
> Kris Kennaway wrote:
>> Tim Daneliuk wrote:
>>> Kris Kennaway wrote:
>>>> Tim Daneliuk wrote:
>>>>> Kris Kennaway wrote:
>>>>>> Tim Daneliuk wrote:
>>>>>>> Is there anything special one has to do when doing a make world
>>>>>>> intended for 64-bit FreeBSD or is it sufficient to build the 64-bit
>>>>>>> kernel and make world as everywhere else?
>>>>>> The same as everywhere else.
>>>>>>
>>>>>> Kris
>>>>> So, I take it that this means that all the userspace programs, ports,
>>>>> packages, utilities, etc. do *not* take advantage of the 64-bit
>>>>> extensions.  That is, only the kernel gets the benefit of the
>>>>> wider word.  Is that correct?
>>>>>
>>>> No, everything is 100% native.
>>>>
>>>> Kris
>>>>
>>> OK, these may be really stupid questions but:
>>>
>>> 1) How does make world know whether to build 32-bit or 64-bit binaries?
>> It always uses the native format.  amd64 == 64 bit, i386 == 32 bit
> 
> Don't mean to beat this to death, but can you say just a bit more
> about this please.  If I am running an i386 kernel on 64-bit capable
> processor, I assume I will get 32-bit binaries or not?  IOW, what
> triggers makeworld to do something in 32- vs. 64-bit mode?  The
> *kernel* currently executing or the underlying hardware capability?

I'm pretty sure this is all documented ;)  The "i386" version of FreeBSD 
is 32-bit.  You can run it on any i386-compatible machine, including 
amd64/em64t machines.  The "amd64" version of FreeBSD is 64-bit.

Kris