RFR: 8303002: Reject packed structs from linker [v5]

[Jorn Vernee]

On Thu, 20 Apr 2023 00:40:44 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

>> Also, isn't it the case that, for structs, we want the size of the layout to be a multiple of its alignment constraint?
>
> The third item in the list is for group size needing to be a multiple of the alignment constraint, the forth item refers to that, so I'll keep the ordered list.
> 
> WRT byte order: I think it's fine to just say "native byte order". Keep it simple. Or do you think there might be confusion about the meaning of "native"? (It looks like not even ByteOrder::nativeOrder explains that term: https://docs.oracle.com/en/java/javase/20/docs/api/java.base/java/nio/ByteOrder.html#nativeOrder())
> 
> "padding layout elements" is not quite right I think, since they also have to be the right size. I think saying just "padding" is more accurate (and simpler).
> 
> I'll switch to using plain links instead.

Uploaded another version

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PR Review Comment: https://git.openjdk.org/jdk/pull/13164#discussion_r1171979964