Summary: Bug fixes for JKU coroutine
The JKU patch has several flaws:
1. When using JDI to debug coroutine, it may crash because the _switchTo intrinsic entry will change to the interpreter one, which is a SHOULD_NOT_REACH_HERE().
2. Change miscellaneous thread-local data structures to coroutine-local level during _switchTo phase.
3. Disable making zombies of _switchTo alike intrinsic things.
4. Fix multiple mem leak problems for coroutine data structures.
5. Create an empty JNIHandleBlock for the first Java call.
6. The stack layout of Coroutine doesn't align with 16 bytes on x86_64 which will cause some float point instructions to throw an sig fault.
7. etc.

Test Plan: Coroutine tests

Reviewed-by: yuleil, shiyuexw, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/113

Summary:
- From http://hg.openjdk.java.net/mlvm/mlvm/hotspot/file/4cd7d914b0e3/coro-simple.patch.
- Resolve trivial conflicts in: systemDictionary.hpp, thread.cpp, debug.hpp.
- Add an option "EnableCoroutine".

Test Plan: run jtreg tests

Reviewed-by: yuleil, shiyuexw, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/113

This reverts commit 5382b8e0.

This reverts commit e1d80ec1.

This reverts commit c7503dc8.

This reverts commit 174fa73f.

This reverts commit e8704b92.

This reverts commit 7a01e5e2.

This reverts commit ca5fefe8.

Reviewed-by: rehn, egahlin

Reviewed-by: neugens
Contributed-by: asemenov@azul.com

8233197: Invert JvmtiExport::post_vm_initialized() and Jfr:on_vm_start() start-up order for correct option parsing
8246703: [TESTBUG] Add test for JDK-8233197
Reviewed-by: aph, adinn, neugens

Summary: Print Tenant ID in GC log of tenant triggered GC

Test Plan: hotspot/test/multi-tenant/

Reviewed-by: luchsh, mmyxym

Issue: https://github.com/alibaba/dragonwell8/issues/102

Reviewed-by: thartmann, kvn, andrew
Contributed-by: zhouyong44@huawei.com

Summary: Fixed build failure on Windows by disabling CPU related features

Test Plan: hotspot/test/sanity

Reviewed-by: kuaiwei, yuleil

Issue: https://github.com/alibaba/dragonwell8/issues/92

Summary: added new flag -XX:+TenantDataIsolation

Test Plan: jdk/test/multi-tenant

Reviewed-by: yuleil, superajun-wsj

Issue: https://github.com/alibaba/dragonwell8/issues/84

Summary: added two new options to support tenant cpu controlling

Test Plan: jdk/test/multi-tenant

Reviewed-by: yuleil, superajun-wsj

Issue: https://github.com/alibaba/dragonwell8/issues/84

Summary: ported heap throttling feature of MultiTenant to Dragonwell8

Test Plan: hotspot/test/multi-tenant/

Reviewed-by: luchsh, mmyxym

Issue: https://github.com/alibaba/dragonwell8/issues/91

Summary: ported heap isolation feature of MultiTenant to Dragonwell8

Test Plan: hotspot/test/multi-tenant/

Reviewed-by: luchsh, mmyxym

Issue: https://github.com/alibaba/dragonwell8/issues/90

Summary: Various small fixes around strncpy and strncat
Reviewed-by: andrew

Summary: ported HotSpot interfaces to Dragonwell8 to support MultiTenant framework

Test Plan: jdk/test/multi-tenant

Reviewed-by: yuleil, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/84

Summary: fix some misc things to build fastdebug version dragonwell8: fastdebug version has `-DCHECK_UNHANDLED_OOPS` which will make `oop` as an object instead of a pointer.

Test Plan: build Dragonwell in fastdebug mode

Reviewed-by: luchsh,D-D-H

Issue: https://github.com/alibaba/dragonwell8/issues/82

Summary: Fixed build failure caused by -Werror=format-security

Test Plan: build and sanity test

Reviewed-by: D-D-H, mmyxym

Issue: https://github.com/alibaba/dragonwell8/issues/79

Summary: Fix build issues caused by object allocation profiling on Windows/Mac

Test Plan: build Dragonwell 8 successfully on Linux/Windows/Mac

Reviewed-by: zhengxiaolinX, luchsh, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/74

Summary:
Port 8202353 from lastest jdk, in order to fix compatibility of 8u232 api change instead of the origin openjdk8 patch
Buglist ref: https://bugs.openjdk.java.net/browse/JDK-8202353
Fix ref: http://hg.openjdk.java.net/jdk/jdk/rev/f605c91e5219

Test Plan:
Successfully build Dragonwell8, and pass jfr tests.

Reviewed-by: D-D-H,luchsh,sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/73

Summary: add support for opto object allocations sampling

Test Plan: test/jfr/event/objectsprofiling/TestOptoObjectAllocationsSampling.java

Reviewers: zhengxiaolinX, luchsh, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/64

Summary: Fix build issues on Windows/Mac from G1ElasticHeap

Test Plan:
test/elastic_heap/

Reviewers:
shiyuexw, sanhong

Issue:
https://github.com/alibaba/dragonwell8/issues/54

CR:

Summary: G1ElasticHeap to support heap shrink/expansion in runtime

Test Plan:
test/elastic-heap/

Reviewers:

Issue:
https://github.com/alibaba/dragonwell8/issues/46

CR:
https://github.com/alibaba/dragonwell8_hotspot/pull/12

Test Plan: existing test cases

Reviewed-by: shiyue

Issue: https://github.com/alibaba/dragonwell8/issues/52

Test Plan: existing test cases

Reviewed-by: shiyue, kuaiwei

Issue: https://github.com/alibaba/dragonwell8/issues/52

Summary:
  change build script and to code to support windows platform

Test Plan:
  existing test cases

Reviewers:
  shiyue, chuansheng

Issue:
  https://aone.alibaba-inc.com/task/22514166

CR:

Summary: Invoke JWarmup APIs via jcmd

Test Plan: test/jwarmup/jcmd/TestInvokeJWarmupViaJcmd.java

Reviewers: kuaiwei, luchsh

Issue: https://aone.alibaba-inc.com/task/22023553

CR: https://aone.alibaba-inc.com/task/22023553

Summary: _mini_dump is not initialized for all paths

Test Plan: test/serviceability/

Reviewed-by: D-D-H, kuaiwei

Issue: https://github.com/alibaba/dragonwell8/issues/45

[C2] Backport JDK-8010500: Possible null pointer dereference at hotspot/src/share/vm/opto/loopnode.hpp

Summary:  Added NULL check for loopnode() in get_pre_loop_end()
Backport the fix for JDK-8010500 (https://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/4e7ee57b57bf) from OpenJDK.

Test Plan: none

Reviewed-by: kuaiwei, luchsh

Issue: https://github.com/alibaba/dragonwell8/issues/13

Summary: add compatibility for UnlockCommercialFeatures

Test Plan: test/jfr/test_unlockCommercialFeatures_compatibility.sh

Reviewed-by: yfxhust, luchsh

Issue: https://github.com/alibaba/dragonwell8_hotspot/issues/6

Summary: remove useless fields of ThreadAllocationStatistics

Test Plan: jdk/test/jdk/jfr/event/runtime/TestThreadAllocationEvent.java

Reviewed-by: yfxhust, luchsh

Issue: https://github.com/alibaba/dragonwell8_hotspot/issues/5

Summary:
  Port jwarmup to dragonwell 8u hotspot

ref T19299187

Test Plan:
test/hotspot/jtreg/jwarmup/Issue11272598.java
test/hotspot/jtreg/jwarmup/TestDisableNCE.java
test/hotspot/jtreg/jwarmup/TestNotDeoptJITMethod.sh
test/hotspot/jtreg/jwarmup/issue9780156.sh
test/hotspot/jtreg/jwarmup/TestEagerCompilation.java
test/hotspot/jtreg/jwarmup/TestNotifyDeopt.sh
test/hotspot/jtreg/jwarmup/TestCheckIfCompilationIsComplete.sh
test/hotspot/jtreg/jwarmup/TestFlagAssertion.java
test/hotspot/jtreg/jwarmup/TestReadLogfile.java
test/hotspot/jtreg/jwarmup/TestClassInitChain.java
test/hotspot/jtreg/jwarmup/TestLogFlush.java
test/hotspot/jtreg/jwarmup/TestRecordNullMethodCounter.java
test/hotspot/jtreg/jwarmup/TestThrowInitializaitonException.java
test/hotspot/jtreg/jwarmup/TestDisableMethodData.sh
test/hotspot/jtreg/jwarmup/TestMethodRecorder.java
test/hotspot/jtreg/jwarmup/TestTieredCompilationInRecording.sh

Reviewers: 传胜, 三红, yumin.qi

Reviewed By: 传胜, 三红

Subscribers: 麦庶

Differential Revision: https://aone.alibaba-inc.com/code/D852146

Summary:
- add a warning of large array allocation
- port D3674 to dragonwell

Test Plan: test/runtime/memory/TestArrayAllocationWarning.java

Reviewers: 传胜

Differential Revision: https://aone.alibaba-inc.com/code/D851704

Summary:
- The original GC printing did not change in the gc log after a full gc, this patch will fix this printing problem
- port D65612 to dragonwell

Test Plan: hotspot/test/gc/metaspace/TestMetaspaceGCLogSize.java

Reviewers: 传胜

Differential Revision: https://aone.alibaba-inc.com/code/D851703

Summary:
- port D64010 to dragonwell
- print the detail time when doing root processing in generational heap collection

Test Plan:
hotspot/test/gc/TestPrintGCRootsTraceTime.java
hotspot/test/gc/

Reviewers: 传胜

Differential Revision: https://aone.alibaba-inc.com/code/D851700