GOLD linker and arm-none-symbianelf

GOLD linker and arm-none-symbianelf

[Marian Kechlibar]

Hello all,

although Symbian OS is practically dead in the commercial world, I still
have to support several hundred Symbian OS - based clients.

Recently, I successfully built binutils 2.27 for target
arm-none-symbianelf. It works. But I cannot build "gold" for this
target, only "ld". It seems that the target platform is not supported.

I can build gold for linux from the same sources just fine.

Is really gold unusable on arm-none-symbianelf?

If I still wanted to build gold for arm-none-symbianelf, what edits do I
have to do in config/makefiles in order to get the system to build the
binary?

Best regards

Marian Kechlibar

Re: GOLD linker and arm-none-symbianelf

[Ian Lance Taylor via binutils]

On Mon, Feb 20, 2017 at 9:16 AM, Marian Kechlibar
<marian.kechlibar@circletech.net> wrote:
>
> although Symbian OS is practically dead in the commercial world, I still
> have to support several hundred Symbian OS - based clients.
>
> Recently, I successfully built binutils 2.27 for target
> arm-none-symbianelf. It works. But I cannot build "gold" for this
> target, only "ld". It seems that the target platform is not supported.
>
> I can build gold for linux from the same sources just fine.
>
> Is really gold unusable on arm-none-symbianelf?
>
> If I still wanted to build gold for arm-none-symbianelf, what edits do I
> have to do in config/makefiles in order to get the system to build the
> binary?

What is different between arm-none-elf and arm-none-symbianelf, and
how do does differences affect the linker?

If there is no effect on the linker then you probably just need to
edit the handling of ENABLE_GOLD in the top-level configure.ac to
recognize "symbianelf" as identical to "elf".

Looking at ld/emulparams/armsymbian.sh, though, and comparing it to
ld/emulparams/armelf.sh, it looks like some special symbols may need
to be defined.  That will require more work.

Ian

Re: GOLD linker and arm-none-symbianelf

[Marian Kechlibar]

I must admit that I am not well-versed in the ELF format; I think that
there must be some difference between "elf" and "symbianelf", though.

Daniel Jacobowitz of Code Sourcery, who used to maintain the CSL ARM
Toolchains, probably knows better.

M.

Dne 20.2.2017 v 19:44 Ian Lance Taylor via binutils napsal(a):
> On Mon, Feb 20, 2017 at 9:16 AM, Marian Kechlibar
> <marian.kechlibar@circletech.net> wrote:
>>
>> although Symbian OS is practically dead in the commercial world, I still
>> have to support several hundred Symbian OS - based clients.
>>
>> Recently, I successfully built binutils 2.27 for target
>> arm-none-symbianelf. It works. But I cannot build "gold" for this
>> target, only "ld". It seems that the target platform is not supported.
>>
>> I can build gold for linux from the same sources just fine.
>>
>> Is really gold unusable on arm-none-symbianelf?
>>
>> If I still wanted to build gold for arm-none-symbianelf, what edits do I
>> have to do in config/makefiles in order to get the system to build the
>> binary?
> 
> What is different between arm-none-elf and arm-none-symbianelf, and
> how do does differences affect the linker?
> 
> If there is no effect on the linker then you probably just need to
> edit the handling of ENABLE_GOLD in the top-level configure.ac to
> recognize "symbianelf" as identical to "elf".
> 
> Looking at ld/emulparams/armsymbian.sh, though, and comparing it to
> ld/emulparams/armelf.sh, it looks like some special symbols may need
> to be defined.  That will require more work.
> 
> Ian
> 

Re: GOLD linker and arm-none-symbianelf

[Ian Lance Taylor via binutils]

On Mon, Feb 20, 2017 at 10:50 AM, Marian Kechlibar
<marian.kechlibar@circletech.net> wrote:
> I must admit that I am not well-versed in the ELF format; I think that
> there must be some difference between "elf" and "symbianelf", though.
>
> Daniel Jacobowitz of Code Sourcery, who used to maintain the CSL ARM
> Toolchains, probably knows better.

Daniel left CodeSourcery over five years ago.  I don't know whether he
still reads this mailing list.

Ian


> Dne 20.2.2017 v 19:44 Ian Lance Taylor via binutils napsal(a):
>> On Mon, Feb 20, 2017 at 9:16 AM, Marian Kechlibar
>> <marian.kechlibar@circletech.net> wrote:
>>>
>>> although Symbian OS is practically dead in the commercial world, I still
>>> have to support several hundred Symbian OS - based clients.
>>>
>>> Recently, I successfully built binutils 2.27 for target
>>> arm-none-symbianelf. It works. But I cannot build "gold" for this
>>> target, only "ld". It seems that the target platform is not supported.
>>>
>>> I can build gold for linux from the same sources just fine.
>>>
>>> Is really gold unusable on arm-none-symbianelf?
>>>
>>> If I still wanted to build gold for arm-none-symbianelf, what edits do I
>>> have to do in config/makefiles in order to get the system to build the
>>> binary?
>>
>> What is different between arm-none-elf and arm-none-symbianelf, and
>> how do does differences affect the linker?
>>
>> If there is no effect on the linker then you probably just need to
>> edit the handling of ENABLE_GOLD in the top-level configure.ac to
>> recognize "symbianelf" as identical to "elf".
>>
>> Looking at ld/emulparams/armsymbian.sh, though, and comparing it to
>> ld/emulparams/armelf.sh, it looks like some special symbols may need
>> to be defined.  That will require more work.
>>
>> Ian
>>