586 vs 686
Ralf Corsepius
rc040203 at freenet.de
Fri Feb 20 07:09:14 UTC 2009
Warren Togami wrote:
> Ralf Corsepius wrote:
>> Kevin Kofler wrote:
>>> Jesse Keating wrote:
>>>> No, they're being made to be able to produce those for those reasons.
>>>> It is yet to be seen if it will be successful, and using the x86_64
>>>> kernel on i586 installs hinges upon this functionality so I recall.
>>>
>>> AFAIK, Debian has been shipping i386 GCC with -m64 support for ages.
>>> The
>>> drawback is that it's slower even when not using -m64 because some
>>> internal
>>> types (HOST_WIDE_INT and related stuff) are larger.
>>
>> Not true. -m64/-32 cause gcc to switch between multilibs, when using a
>> multilibbed setup. Unless something is broken somewhere, the internal
>> types, library search paths etc. will be set up correctly.
>>
>
> Debian has multilib?
Not that I am a aware off (I don't use Debian nor Ubuntu).
I was commenting on Kevin's remark on type-sizes from a GCC focused
perspective: Unless something is bugged, it switches type-sizes and
library paths corresponding to its multilib-switches.
I don't know about the kernel related issues.
Ralf
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