Re: Document existing GNU extensions

["H.J. Lu" <hjl.tools@gmail.com>]

On Thu, Mar 3, 2016 at 9:23 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Fri, Feb 19, 2016 at 2:52 PM, Mark Wielaard <mark@klomp.org> wrote:
>> On Fri, Feb 19, 2016 at 02:26:15PM -0800, H.J. Lu wrote:
>>> There are many GNU extensions in GCC, binutils and glibc.  Some of
>>> them are
>>>
>>> PT_GNU_EH_FRAME
>>> STT_GNU_IFUNC
>>> PT_GNU_STACK
>>> PT_GNU_RELRO
>>> SHT_GNU_INCREMENTAL_INPUTS
>>> SHT_GNU_ATTRIBUTES
>>> SHT_GNU_HASH
>>> SHT_GNU_LIBLIST
>>> SHT_GNU_verdef
>>> SHT_GNU_verneed
>>> SHT_GNU_versym
>>> STB_GNU_UNIQUE
>>> DT_GNU_PRELINKED
>>> DT_GNU_CONFLICTSZ
>>> DT_GNU_LIBLISTSZ
>>> DT_GNU_HASH
>>> DT_GNU_CONFLICT
>>> DT_GNU_LIBLIST
>>> DT_RELCOUNT
>>> DT_RELACOUNT
>>> .note.ABI-tag
>>> .note.GNU-stack
>>
>> That is a nice list to start with, thanks.
>>
>>> Most of their documentations are with the source codes or spread over
>>> multiple email messages in various mailing list archives.  There is no
>>> central place to look them up.
>>
>> Right, that is why we set up this group.
>>
>>> I documented 2 of them:
>>>
>>> PT_GNU_EH_FRAME
>>> STT_GNU_IFUNC
>>>
>>> and put them at
>>>
>>> https://github.com/hjl-tools/linux-abi
>>>
>>> Is there a git repo I can use on sourceware.org?
>>
>> Not yet. But we should get one once we have concensus about how to
>> make sure we document things.
>>
>
> FYI, I updated my Linux-abi spec to correct PT_GNU_EH_FRAME
> and add .eh_frame_hdr section.
>

I updated my Linux-abi spec with .note.gnu.build-id section and
NT_GNU_BUILD_ID:

https://github.com/hjl-tools/linux-abi/wiki/Linux-Extensions-to-gABI

-- 
H.J.