Re: [RFC PATCH 0/3] grub powerpc64 little-endian enablement

[Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com>]

On 2015-06-15 14:15, Andrei Borzenkov wrote:
> В Thu, 28 Aug 2014 16:56:02 -0300
> Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com> пишет:
>
>> From: Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
>>
>> Hi,
>>
>> At the beginning of the year we provide a patchset that enabled GRUB for
>> little-endian PowerPC. Our approach at the time was to build GRUB itself and
>> its tools in 64-bit little-endian. One of the reasons of build in 64-bit is
>> to avoid 32-bit dependencies in the distro and build a system entirely 64-bit.
>>
>> This patchset was not welcomed at the time because it would bring a
>> high-maintainance-cost, without real gain since it could just be cross-compiled.
>>
>> After that, Brent Baude, Vladmir (phcoder) and I started to work in a solution
>> that would cross-compile but without 32-bit dependencies. This patchset is the
>> result of this new approach. It's based on the work of Brent Baude, Vladimir
>> (phcoder), and Tomohiro.
>>
>> It can be devided in two parts:
>>
>>    1) Skip libgcc dependency just for ppc64el (patch 1 and 2);
>
> This is now default for all platforms
>
>>    2) Check elf endianess and byteswap if necessary (patch 3);
>>
>
> That's still pending.

Yes, I'm aware of that. :)

>
>> The result is GRUB itself in 32-bit BE and its tools in 64-bit LE. This solution
>> satisfies the needs of the distros. I tested it in three different distros, in
>> both endianess and it's fine.
>>
>> If thoses patches were accepted we will have an official solution. Nowadays,
>> distros are taking diffrent approachs. Some of then are using the original
>> solutions and others are using cross-compiler.
>>
>
> Could you resend missing bits rebased to current head?
>
Sure thing. I'll review it once more and send it to the ML later this week.

-- 
Paulo Flabiano Smorigo
IBM Linux Technology Center