PR23611, objcopy is not removing executable relocatable sections

[Michael Matz]

Hi,

On Wed, 12 Sep 2018, Andrew Burgess wrote:

> > Kamlesh's patch to make --remove-relocations remove all types of reloc
> > section, but on reconsidering decided the existing behaviour was worth
> > keeping despite needing to document it.
> 
> This is what puzzles me about this discussion.  You saw value in
> --remove-relocations NOT being able to remove some relocation
> sections?
> 
> What value can that possibly have?

relocations emitted by --emit-relocs into DSOs aren't necessary at runtime 
(which is why they aren't emitted by default), dynamic relocations are.  
As the latter are part of the process image they aren't actually just 
placed in sections but also in segments.  You can't remove such pieces 
easily, you could only nullify them.  If you do that the result will stop 
working.  So I'd ask the opposite question: what value can removing 
dynamic relocations possibly have?


Ciao,
Michael.