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Re: Bug#154179: Please create binary-sh[34] and remove binary-sh



>>>>> In <20020725051639.GA10014@cyberhqz.com> 
>>>>>	Ryan Murray <rmurray@debian.org> wrote:
>> [1  <text/plain; us-ascii (quoted-printable)>]
>> On Thu, Jul 25, 2002 at 01:34:34PM +0900, ISHIKAWA Mutsumi wrote:
>> >  Binary incompatibility between SH3 and SH4 was disccused on debian-sh
>> > list, we need both binary-sh3 and binary-sh4, I understand.

>> >  I wish to merge binary-sh3 and binary-sh4 support to next Debian
>> > official release.

>> Again, please correct me if I am wrong.  From my understanding of the
>> incompatibility thread it seems that the big difference is in performance,
>> but that the current gcc emits code that is fine for both.  
>>
>> There are several cases already in the archive where we do not have
>> two archs for performance gains (mips1 vs mips3, i386 vs i686,
>> etc). 

 No, it is not same as i386 vs i686.
 Please refer the mail written by NIIBE Yutaka <gniibe@m17n.org>

 http://lists.debian.org/debian-superh/2001/debian-superh-200109/msg00011.html

 The object and/or shared library are *not* compatible  between SH3
and SH4, so we can not mix SH3 and SH4 binary on the same environmet.

 We can run i686 optimized binaries on i386 binaries environment.
 But we can not run SH4 optimized binaries on sh3 binary environment.

-- 
ISHIKAWA Mutsumi
 <ishikawa@netvillage.co.jp>, <ishikawa@linux.or.jp>, <ishikawa@debian.org>


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