Integrated: 8261473: Shenandoah: Add breakpoint support

[Zhengyu Gu]

On Tue, 9 Feb 2021 21:19:11 GMT, Zhengyu Gu <zgu at openjdk.org> wrote:

> Please review this patch that adds breakpoint support for Shenandoah, that allows Shenandoah to access a few tests:
> 
> gc/TestConcurrentGCBreakpoints.java
> gc/TestJNIWeak/TestJNIWeak.java
> gc/TestReferenceClearDuringMarking.java
> gc/TestReferenceClearDuringReferenceProcessing.java
> gc/TestReferenceRefersTo.java
> 
> The drawback is that above tests can not run with passive mode, which can result tests to hang, as breakpoints only apply to concurrent GC.
> 
> Test:
> - [x] hotspot_gc_shenandoah
> - [x] tier1 with Shenandoah

This pull request has now been integrated.

Changeset: 9cf4f90d
Author:    Zhengyu Gu <zgu at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/9cf4f90d
Stats:     165 lines in 7 files changed: 153 ins; 2 del; 10 mod

8261473: Shenandoah: Add breakpoint support

Reviewed-by: rkennke, shade

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PR: https://git.openjdk.java.net/jdk/pull/2489