[PATCH] elf: Support multiple PT_GNU_RELRO segments

[Adhemerval Zanella Netto]

On 09/07/26 05:43, Florian Weimer wrote:
> * Adhemerval Zanella Netto:
> 
>> One possibility is to create the tests (ET_EXEC/ET_DYN) with some extra dummy
>> DT_NEEDED tags by linking with -Wl,--as-needed and some libraries, and then 
>> post-processing it and replace it with PT_GNU_RELRO tags.
> 
> I don't see how this would work.  We can try to create extra PT_NOTE
> segments (perhaps by varying alignment?), and turn those into
> PT_GNU_RELRO via post-processing.

The idea is just to create extra DT_* entries, the shared libraries are just
placeholders.  But as H.J has noted, ld.bfd already supports --spare-dynamic-tags=
(not sure which version, but we can add a configure script).