Re: [PATCH 2 of 2] cc/gcc: 4.4.5, add arm-softfloat-libgcc patch from buildroot

[Bryan Hundven <bryanhundven at gmail dot com>]

On Sat, Nov 13, 2010 at 1:16 AM, Khem Raj <raj.khem@gmail.com> wrote:
> On Thu, Nov 11, 2010 at 3:10 AM, Bryan Hundven <bryanhundven@gmail.com> wrote:
>> On Wed, Nov 10, 2010 at 10:20 PM, Esben Haabendal
>> <eha@doredevelopment.dk> wrote:
>>> Arnaud Lacombe <lacombar@gmail.com> writes:
>>>
>>>> On Thu, Nov 11, 2010 at 12:27 AM, Esben Haabendal
>>>> <eha@doredevelopment.dk> wrote:
>>>>> Feel free to continue raising the flag every single time a patch is
>>>>> proposed to or included in ct-ng which tries to fix an issue which has
>>>>> not been reported upstream.
>>>>>
>>>>> But _please_ do stop trying to obstruct the ct-ng work. ÂIt is none of
>>>>> your business.
>>>>>
>>>> You should have been a politician, you said something and its opposite
>>>> in this excerpt: comment on patches but STFU.
>>>
>>> I just said (or at least meant) that it does not make any sense that you
>>> continue to object to ct-ng's use of patches which you do not find
>>> "worthy", as you do not care for ct-ng users.
>>>
>>> /Esben
>>>
>>> --
>>> For unsubscribe information see http://sourceware.org/lists.html#faq
>>>
>>>
>>
>> This thread is a dead horse. Please, stop kicking it.
>
> The patch is needed for a toolchain configured with old ABI (oabi) and
> soft float
> as old abi is stale and obsolete upstream gcc has no interest in this
> patch. that said
> you dont need it if you do not build oabi toolchains. Most of stuff
> these days use eabi
> and eabi toolchains dont require it. Does ct-ng supprt oabi toolchains ?
> I kind of think what Arnaud asked was correct thing due dilligence
> when forward porting
> old patches is a good thing.
>
> on the other hand sending the patch to ml for review was also the
> right thing too.
>
> -Khem
>

Khem,

Thank for some actual insight on this patch!

It may be interesting to know now if Michel's ctng config had eabi turned off.
I know that eabi is a boolean option, that defaults to 'y', but can be disabled.
So I would assume that oabi is still possible with crosstool-ng.

I have a question about the "-lfloat" in the gcc/config/arm/linux-elf.h.
I thought that libfloat was provided by the netwinder floating point
emulation, but on modern (gcc > 4.1) toolchains, I don't see any
reference to libfloat except in gcc/config/arm/linux-elf.h. Am I
missing something?

Mychel,

Could you please post your .config and build.log?

-Bryan

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