[aarch64-port-dev ] git: openjdk/aarch64-port: master: 8259808: Add JFR event to detect GC locker stall

[Thomas Schatzl]

Changeset: 311a0a91
Author:    Denghui Dong <ddong at openjdk.org>
Committer: Thomas Schatzl <tschatzl at openjdk.org>
Date:      2021-01-27 15:28:46 +0000
URL:       https://git.openjdk.java.net/aarch64-port/commit/311a0a91

8259808: Add JFR event to detect GC locker stall

Reviewed-by: sjohanss, tschatzl, egahlin

! src/hotspot/share/gc/shared/gcLocker.cpp
! src/hotspot/share/gc/shared/gcTrace.hpp
! src/hotspot/share/gc/shared/gcTraceSend.cpp
! src/hotspot/share/jfr/metadata/metadata.xml
! src/hotspot/share/prims/whitebox.cpp
! src/jdk.jfr/share/conf/jfr/default.jfc
! src/jdk.jfr/share/conf/jfr/profile.jfc
+ test/jdk/jdk/jfr/event/gc/detailed/TestGCLockerEvent.java
! test/lib/jdk/test/lib/jfr/EventNames.java
! test/lib/sun/hotspot/WhiteBox.java