Re: [Suggestion] about h8/300 architecture in gcc and binutils

[Chen Gang <gang.chen@asianux.com>]

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