Re: [Gcl-devel] 2.6.11

[Camm Maguire]

Greetings!

Will Newton <address@hidden> writes:

> On 12 August 2014 20:28, Camm Maguire <address@hidden> wrote:
>
> custreloc is working, but lacks trampolines. The branch distance is
> +/-128MB which seems sufficient on the cygwin branch but not master
> where the heap seems to grow much more quickly.
>

Great!  I did not know this (apparent adequacy on cygwin).  As I recall,
there is still no long-calls option.  Can you post the relocs used by
the existing calls output by gcc?  Is the branch you mention above the
existing 24bit call?

I'm surprised there is a difference between master and 2.6.11pre here,
but the immediate goal is the latter.  The most strenuous test will be
the acl2 build, and I'd be very surprised if that will work with 24bit
calls even in 2.6.11pre.  If it does, we can proceed with the release. 

>
> I think debian-arm is a good place to ask, there should be some ARM
> and Linaro people on that list who may be able to arrange access to
> hardware.

Thanks so much.  Have posted there, and already received a kind offer.

I take it you are working on/with gcc development on arm64.  How long
will it take to get long-calls?

Lastly, is there any reason why a 32bit long call on arm32 could not be
used as a arm64 trampoline?  Is the instruction encoding the same?

Take care,
-- 
Camm Maguire                                        address@hidden
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