JFR Writer part 2

[tajila]

• modify iterateStackTraceImpl to take array instead of exception object as a walkback
• add buffer writer API
• add JFRChunkWriter API
• add JFR ConstantPool types for type dictionary
• add execution sample JAva native for testing purposes

[tajila]

@gacholio Please review these changes

[gacholio]

This all looks good to me.

[gacholio]

Let me know when when you are done touching it up (mark as not draft).

[gacholio]

One last thing - for the internal builds, you will need to either ifdef the files or add UMA excludes for them.

[tajila]

I've added the ifdefs

[gacholio]

I've added the ifdefs

Some of the files include JFR-specific headers - I suspect those includes will need to be inside the ifdefs.

[tajila]

jenkins test xlinux jdk8,jdk21

[tajila]

jenkins test sanity win jdk8,jdk21

[tajila]

jenkins test sanity xlinux jdk8,jdk21

[gacholio]

The test native and internalVMFunctions field need to be ifdeffed (for simplicty just ifdef the contents of the native rather than removing it entirely).

[gacholio]

Since this is test code, it might be better to move the executionSample code into the native then there would be need for the function table change.

[tajila]

Since this is test code, it might be better to move the executionSample code into the native then there would be need for the function table change.

If we do that jfrExecutionSample will need to go into the function table instead. I think ill remove it since you are working on the thread sampling.

[gacholio]

runtime/vm/JFRConstantPoolTypes.hpp:808: new blank line at EOF.

[tajila]

jenkins test sanity win jdk8,jdk21

[tajila]

jenkins test sanity xlinux jdk8,jdk21

[tajila]

jenkins test sanity xlinux jdk21

[tajila]

jenkins test sanity xlinux jdk8

[tajila]

jenkins test sanity win jdk8,jdk21

[tajila]

jenkins test sanity xlinux jdk8,jdk17,jdk21

[gacholio]

This has passed compilation in an internal build.

[tajila]

Only failure was jitserver related.