RFC: Three load segments patch (PR 30907) [version 2]

[Nick Clifton]

Hi Fangrui,

> Thanks for working on the size bloat issue. I haven't checked closely,
> but the proposed -z one-rosegment probably does something similar to
> --rosegment.

Exactly.  I was trying to emulate what that option did.

> My feature requests remain at
> https://sourceware.org/pipermail/binutils/2024-June/134541.html

> Splitting -z separate-code into --rosegment and -z separate-code (as
> suggested in https://sourceware.org/bugzilla/show_bug.cgi?id=30907#c4)
> might be useful. Gold introduced --rosegment, which has been adopted
> by lld and mold as well.

Fair enough.  So I have decided to go ahead and commit my patch, although
I have renamed the option to --rosegment instead of -z one-rosegment.  I
prefer my original name for the option, but being compatible with the other
linkers is more important I feel, so I made the change.

The option is not enabled by default unless the new --enable-rosegment
configure option is used, but at least having it in the code means that
more people than just myself can experiment with it.

Cheers
   Nick