[Bug ld/25665] aarch64 veneers not inserted with large .text object between caller and target

[wdijkstr at arm dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25665

Wilco <wdijkstr at arm dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |wdijkstr at arm dot com

--- Comment #9 from Wilco <wdijkstr at arm dot com> ---
(In reply to rrorden from comment #8)
> So the proposal is to add an aarch64 linker option that places stubs after
> input sections that need them, just like aarch32, and I would need to
> implement the -ffunction-sections behavior in our aot compiler so each
> function (and they are relatively small) gets a unique section name. The A53
> erratum would not force every stub section to align to 4k, but that is a
> worst-case scenario. If this is correct, I am okay with it.

You don't need to place every function in its own section (that would add a lot
of overhead if there are millions), just avoid creating sections larger than
say 127MBytes (that allows for >87000 long branch veneers).

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