From Panama 17 to 19, ability to get M1?

[Maurizio Cimadamore]

Hi,
I suggest you start looking at some of the documents we have available 
to get started - for JDK 19 you can look here:

https://github.com/openjdk/panama-foreign/blob/21452ec32b27ba906ec06253e4a7af9037728174/doc/panama_memaccess.md

In short, you always need to provide a layout constant of the right kind 
when doing allocation using an allocator (and also when doing dereference).

Value layout constants are provided in the ValueLayout class (e.g. 
ValueLayout.JAVA_DOUBLE).

If you use jextract, additional constants (e.g. C_INT, C_LONG, ...) will 
be provided.

On 23/12/2022 16:20, Martin Pernollet wrote:
> Hi,
>
> Would anyone suggest examples showing how to use Panama 19 instead of 
> 17? A couple of things have changed ( e.g. how to use the new
> locator.allocateArray(new ValueLayout.OfDouble(
> , and deal with all other datatypes, strings, etc).
>
> One additional question : when will ARM be supported to run panama on 
> Apple M1?

Apple M1 is mostly supported on JDK 19 - modulo few corner cases which 
have been addressed in Java 20.

Maurizio

>
> Regards,
>
> Martin
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