[syslinux] binutils (objcopy?) >= 2.26 breaks syslinux (bios) build

[poma]

On 08.02.2016 19:04, H. Peter Anvin wrote:
> On 02/03/16 10:30, H. Peter Anvin via Syslinux wrote:
>> On February 3, 2016 7:17:37 AM PST, Celelibi <celelibi at gmail.com> wrote:
>>> 2016-02-02 18:50 UTC+01:00, poma via Syslinux <syslinux at zytor.com>:
>>>> On 30.01.2016 16:59, poma wrote:
>>>>> ...
>>>>>
>>>>> https://sourceware.org/bugzilla/show_bug.cgi?id=19538
>>>>>
>>>>>
>>>>
>>>> Mister Anvin,
>>>> care to share what's the status of the "ld?" problemo,
>>>> is anyone working on it?
>>>>
>>>> It would be maravilloso if syslinux can continue to build and test
>>> with
>>>> latest and greatest.
>>>
>>> There have been a discussion about the -fPIC option a few month ago
>>> (november or december 2015). I don't remember what exactly it was
>>> about. I think I said I would submit a patch that add -fPIC for 32
>>> bits even thought it wouldn't have an actual effect regarding current
>>> compilers.
>>>
>>> This option is definitely required for 64 bits, and it is
>>> theoretically required for 32 bits. But I haven't investigated the
>>> current issue.
>>>
>>> Celelibi
>>
>> It isn't just 32 vs 64 bits, it is also 32 bit BIOS vs 32 bit EFI, and their requirements differ.
>>
> 
> So here is the deal... syslinux.elf in the BIOS case is really an odd
> duck.  It has parts that are relocatable (and needs to export its
> symbols) and parts that aren't (and also needs to export at least some
> of its symbols.)
> 
> It might be that we need -Bdynamic rather than -pie, and perhaps some
> modification to the relocation code, but it could also be that ld needs
> a whack to the head.
> 
> 	-hpa
> 

s/LD_PIE = -pie/LD_PIE = -Bdynamic/

Failed to load ldlinux.c32
Boot failed: press a key to retry...
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