JDK-8190336 Make sure that AppCDS works on aarch64 platform

[Dmitry Samersoff]

Ioi,

I can confirm that current patchset works on aarch64 as expected.

It passes all tests in runtime/SharedArchiveFile.

I'll re-check it when other version of fix/more tests become available.

-Dmitry


On 30.10.2017 18:52, Ioi Lam wrote:
> Hi Dmitry,
> 
> In the latest JDK 10 repo, is_jrt has been renamed to is_modules_image.
> Please change the code accordingly.
> 
> I will post my latest diff soon, with some test cases as well.
> 
> Thanks
> 
> - Ioi
> 
> 
> On 10/30/17 4:04 AM, Dmitry Samersoff wrote:
>> Ioi,
>>
>> I'd tried to apply your patch to latest open JDK10 and
>> the compilation fails with:
>>
>> /root/dsamersoff/ESC/appcds/hs/src/hotspot/share/classfile/systemDictionaryShared.cpp:400:16:
>>
>> error: ‘class SharedClassPathEntry’ has no member named ‘is_jrt’
>>
>> Did I miss something?
>>
>> -Dmitry
>>
>> On 13.10.2017 02:48, Ioi Lam wrote:
>>> Hi,
>>>
>>> Please review this change set.
>>>
>>> http://cr.openjdk.java.net/~iklam/jdk10/8188791-open-appcds-impl.v01/
>>>      https://bugs.openjdk.java.net/browse/JDK-8188791
>>>
>>> This is the first step of implementing the following JEP, which moves
>>> AppCDS from
>>> closed repos into the openjdk repo:
>>>
>>>      https://bugs.openjdk.java.net/browse/JDK-8185996
>>>
>>> In JDK 9, significant portion of AppCDS code resided in the closed repo.
>>> As part
>>> of the open-sourcing effort of JDK 18.3, we will move the source code
>>> into the
>>> open repo.
>>>
>>> In this changeset, the code is moved verbatim as much as possible. The
>>> intention is
>>> only to relocate the sources, not to changing existing behaviors, and
>>> not
>>> to do any sort of refactoring.
>>>
>>> Most of the "diffs" shown in this webrev are the result of copying the
>>> closed source
>>> files on top of files of the same name in the open repo. So in
>>> reviewing, instead of
>>> focusing on what's "changed", it's better to focus on the entire content
>>> of the new
>>> version of each file.
>>>
>>> The only functional change in this task is that the UseAppCDS flag is
>>> changed from
>>> a "commercial" flag to a regular "product" flag. This is because
>>> "commercial"
>>> flags are not supported by the OpenJDK build.
>>>
>>> Source code refactoring may be desirable, because the old open/closed
>>> source
>>> code structure had introduced some intermediary APIs to connect code
>>> between
>>> the two repos. Such API should be removed in a separate RFE.
>>>
>>> Also, some AppCDS tests are currently in the closed repo. These tests
>>> will be
>>> moved in a separate task. See JDK-8188792 for details.
>>>
>>> All the AppCDS tests (currently still in closed sources) passed with
>>> both Oracle JDK
>>> and OpenJDK.
>>>
>>> Thanks
>>> - Ioi
>>
>