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Review of --enable-gold=both patch

Matthias Klose doko@ubuntu.com
Fri Oct 29 15:41:00 GMT 2010 
On 29.10.2010 17:12, Paolo Bonzini wrote:
> On 10/29/2010 04:54 PM, Matthias Klose wrote:
>> On 29.10.2010 11:20, Nick Clifton wrote:
>>> Hi Matthias,
>>>
>>>>> OK. I suppose we could also have --with-default-linker=gold -- or
>>>>> --enable :-) -- but I'm not worried about that.
>>>>>
>>>>> Thanks again for your help with this.
>>>>
>>>> the --enable-gold=both option is already in current binutils trunk,
>>>> which will soon be released as binutils-2.21. Should this be changed
>>>> before the binutils release, or should the binutils patch be kept as it
>>>> is? Any recommendations how to update the patch and/or current binutils?
>>>
>>> We should really make the 2.21 release support --with-default-linker=
>>> Would you care to submit a patch for this ?
>>
>> to summarize:
>>
>> - in binutils, --with-default-linker= should trigger which linker is
>> built, and should determine which linker the ld symlink points to.
>>
>> - if both linkers are built, the non-default linker build has to be
>> enabled with either --enable-ld or --enable-gold.
>>
>> - values (other than yes or no) passed to --enable-ld and --enable-gold
>> are ignored.
>
> Uh, actually no. Rereading the thread, the only point on which we had consensus
> :) was to remove the current wart of --enable-gold disabling --enable-ld; you're
> proposing to double it instead.
>
> This was my proposal:
>
> --disable-gold [--enable-ld]
> Build only ld. Default option.
>
> --enable-gold[=default] [--enable-ld]
> Build both gold and ld. Install gold as "gold" and "ld", install ld
> as "ld.bfd". This is different from the current behavior, in that ld
> is currently not installed at all.
>
> --enable-gold[=default] --disable-ld
> Build only gold, which is then installed as both "gold" and "ld".
>
> --enable-gold --enable-ld=default
> Build both gold (installed as "gold") and ld (installed as "ld").
> In other words, ld is default
>
> --enable-gold=default --enable-ld=default
> Error.

fine with this too, but you should not change "ld.gold" to "gold".

Fine with me to implement this, if there is consensus, but it won't be before 
next week.

   Matthias
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