RFC: Add PT_GNU_PROPERTY to cover .note.gnu.property section

[Szabolcs Nagy]

On 12/12/2018 10:44, Mark Wielaard wrote:
> Also I thought there was still a question whether any or all
> newly proposed property features and flags are actually needed
> as loadable segments. There is a clear overlap with the GNU
> Attributes (which are non-loadable). I would like to see consensus
> first on the new property format/flags and which are and which
> aren't needed as loadable properties at runtime.

i think the list of properties that are needed at
runtime can be decided independently, since the
point of the property mechanism is to be extensible
and useful for future features.

i think it is clear that there are at least some
properties that elf loaders will need to check at
runtime, so we do need such a mechanism. (e.g.
PT_GNU_STACK is an existing example that could have
been implemented as a property).