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Re: [Suggestion] about h8/300 architecture in gcc and binutils
- From: Chen Gang <gang dot chen at asianux dot com>
- To: Michael Schewe <michael dot schewe at gmx dot net>
- Cc: Jeff Law <law at redhat dot com>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>, linux at roeck-us dot net, Yoshinori Sato <ysato at users dot sourceforge dot jp>, binutils at sourceware dot org
- Date: Thu, 12 Sep 2013 12:38:52 +0800
- Subject: Re: [Suggestion] about h8/300 architecture in gcc and binutils
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Hello all:
I have send the related issues to "http://gcc.gnu.org/bugzilla", please
check if you like, thanks.
currently, I only send 3 bugs: Bug58256, Bug58400, Bug58401, the other
bugs may duplicate with these bugs, so I do not send (if they are also
valuable, I will send too).
Next, I should analyse them (better with another related members), my
analyzing way is:
compare it with another correct compiler (e.g x86 compiler) by code and by debugging.
Wish one of these bugs can be fixed by us within a week (although I am
not quite sure for it: I have no experience for compiler development).
Welcome any members' suggestions or completions :-).
Thanks.
On 09/11/2013 09:02 AM, Chen Gang wrote:
> On 09/11/2013 03:55 AM, Michael Schewe wrote:
>> Hello Maintainers,
>>
>> if you like to drop h8/300 support in linux kernel, thats OK for me.
>
> OK, thanks.
>
>> But i like to see it still supported in gcc & binutils, at least i have
>> some projects and know companies using this architecture in embedded
>> applications, bare metal without OS. These products have lifetime in
>> range of 10...20 years and need toolchain support for software-updates.
>>
>
> OK, thank you for your valuable information.
>
> And it seems the issues of h8/300 for compiling Linux kernel is still
> valuable to be focused on, just like Jeff Law said. :-)
>
>> Michael
>>
>> Please note for answers: i am only subscribed to binutils mailing list.
>>
>
> Excuse me, my English is not quite well, and also I am a newbie in
> binutils and gcc mailing list. I guess your meaning is:
>
> When send h8/300 related mails, better always include binutils@sourceware.org (although may it is only for gcc issues) ?
>
> Is it correct ? (if it is correct, not need reply)
>
>
> Thanks.
>
>> Chen Gang schrieb:
>>> On 09/10/2013 10:19 AM, Jeff Law wrote:
>>>> On 09/09/2013 07:13 PM, Chen Gang wrote:
>>>>> Hello Maintainers:
>>>>>
>>>>> After google search and check the Linux kernel, H8/300 is dead, and for
>>>>> gcc-4.9.0 and binutils-2.23.2 still has h8300, do we still need it for
>>>>> another OS ?
>>>>>
>>>>> Welcome any suggestions or completions, thanks.
>>>>>
>>>>>
>>>>> The related information in linux kernel next tree:
>>>>>
>>>>> commit d02babe847bf96b82b12cc4e4e90028ac3fac73f
>>>>> Author: Guenter Roeck<linux@roeck-us.net>
>>>>> Date: Fri Aug 30 06:01:49 2013 -0700
>>>>>
>>>>> Drop support for Renesas H8/300 (h8300) architecture
>>>>>
>>>>> H8/300 has been dead for several years, and the kernel for it
>>>>> has not compiled for ages. Drop support for it.
>>>>>
>>>>> Cc: Yoshinori Sato<ysato@users.sourceforge.jp>
>>>>> Acked-by: Greg Kroah-Hartman<gregkh@linuxfoundation.org>
>>>>> Signed-off-by: Guenter Roeck<linux@roeck-us.net>
>>>>>
>>>>>
>>>>> The related information in gcc/binutils:
>>>>>
>>>>> We can build h8300 cross-compiler for Linux kernel, successfully,
>>>>> but it has many bugs when building Linux kernel with -Os.
>>>>> if we still need h8300 for another OS, is it still valuable to send
>>>>> these bugs to Bugzilla (although it is found under Linux)?
>>>> It is still useful to send code generation bugs for the H8/300 series to
>>>> the GCC folks.
>>>>
>>>
>>> OK, thanks, I will wait for 1-2 days which may get another members'
>>> opinions for discussing.
>>>
>>> If no additional opinions, I will report them to Bugzilla, and I should
>>> try to continue 'work' with related members (although I am a newbie for
>>> compiler and binutils programming).
>>>
>>>> jeff
>>>>
>>>>
>>>>
>>>
>>> Thanks.
>
>
--
Chen Gang