JEP 175 - Review comments
Lindenmaier, Goetz
goetz.lindenmaier at sap.com
Wed Jun 12 07:44:05 PDT 2013
Hi,
With my recent changes I removed some of the problems Vladimir mentioned.
I also added the patches queue I maintain into our jdk8/hotspot repository,
at hotspot/ppc_patches.
Applied to the staging hotspot directory, the linuxppc and aixppc hotspots
can be built.
The queue contains the changes proposed by me before, with minor changes due
to recent development:
1-9 linuxppc C-interpreter port (In our plan milestone M2.1)
11-15 aixppc C-interpreter port (In our plan milestone M2.2)
101-107 C-interpreter improvements
111-122 ppc C2 compiler port leading to a vm rudimentarily working
200-217 C2 compiler fixes, extensions etc needed for a stable and
performant ppc port.
Altogether currently 49 changes.
Our plan was to propose the changes in the order of the queue for
review. I'm happy to create webrevs for any of them.
Vladimir, maybe the queue simplifies reviewing the port, as the changes
are more complete. They include all later improvements by fixes or
adaptions in merge changes.
For why and where I renamed PPC to PPC32 see the second change in the
queue.
Best regards,
Goetz.
PS: This can be used as the invokedynamic repository:
hg clone http://hg.openjdk.java.net/ppc-aix-port/jdk8/hotspot ppc-hotspot
hg clone http://hg.openjdk.java.net/ppc-aix-port/stage/hotspot stage-hotspot
cd stage-hotspot
ln -s .../ppc-hotspot/ppc_patches/ .hg/patches
hg qpush -a
-----Original Message-----
From: Vladimir Kozlov [mailto:vladimir.kozlov at oracle.com]
Sent: Dienstag, 11. Juni 2013 18:34
To: Lindenmaier, Goetz
Cc: Volker Simonis; Azeem Jiva; Chris Plummer
Subject: Re: JEP 175 - Review comments
Here is result of my first attempt to build/test ppc changes together
with our closed sources.
Small problems:
src/share/vm/memory/allocation.hpp:209: Trailing whitespace
src/share/vm/memory/allocation.inline.hpp:121: Trailing whitespace
src/share/vm/opto/escape.cpp:2207: Trailing whitespace
src/share/vm/memory/allocation.hpp:212: Trailing whitespace
src/share/vm/opto/escape.cpp:2214: Trailing whitespace
Build on MacOS:
src/share/vm/opto/callGenerator.cpp: In member function 'virtual
JVMState* VirtualCallGenerator::generate(JVMState*)':
src/share/vm/opto/callGenerator.cpp:204: error:
'zero_page_read_protected' is not a member of 'os'
agent/src/os/bsd/MacosxDebuggerLocal.m:54:2: error: #error UNSUPPORTED_ARCH
agent/src/os/bsd/MacosxDebuggerLocal.m:167:4: error: #error UNSUPPORTED_ARCH
agent/src/os/bsd/MacosxDebuggerLocal.m:591:2: error: #error UNSUPPORTED_ARCH
We have several conflict with closed sources builds:
src/share/vm/utilities/elfSymbolTable.cpp: In member function 'bool
ElfSymbolTable::lookup(unsigned char*, int*, int*, int*)':
src/share/vm/utilities/elfSymbolTable.cpp:97: error: comparison between
signed and unsigned integer expressions
src/share/vm/utilities/elfSymbolTable.cpp:124: error: comparison between
signed and unsigned integer expressions
error: no 'oopDesc** frame::interpreter_frame_mirror_addr() const'
member function declared in class 'frame'
error: no matching function for call to
'SharedRuntime::c_calling_convention(BasicType*&, VMRegPair*&, uint&)'
I think it is due to changes like next:
-#ifdef PPC
+#ifdef PPC32
oop* interpreter_frame_mirror_addr() const;
Next is easy fix in our closed sources but it requires efforts from our
side:
src/share/vm/prims/methodHandles.cpp: In static member function 'static
void MethodHandles::generate_adapters()':
src/share/vm/prims/methodHandles.cpp:68: error: 'adapter_code_size'
cannot be used as a function
src/share/vm/prims/methodHandles.cpp:70: error: 'adapter_code_size'
cannot be used as a function
I would suggest to do such shared changes which affects different builds
later after initial push.
Thanks,
Vladimir
On 6/7/13 3:20 AM, Lindenmaier, Goetz wrote:
> Hi Vladimir,
>
> I updated the repo to jdk8-b92. Our nightly tests built and
> tested it successfully. In case you experience any problems
> please tell me the details so I can fix them.
>
> Best regards,
> Goetz.
>
> http://cr.openjdk.java.net/~simonis/ppc-aix-port/index.html
>
>
> -----Original Message-----
> From: Vladimir Kozlov [mailto:vladimir.kozlov at oracle.com]
> Sent: Dienstag, 4. Juni 2013 20:58
> To: Simonis, Volker
> Cc: Iris Clark; Wintergerst, Michael; Lindenmaier, Goetz; Bernard Traversat; Jeannette Hung; Azeem Jiva; David Therkelsen; Mikael Vidstedt; Neil Richards; Steve Poole; luchsh at cn.ibm.com; Tim Ellison; Alan Bateman
> Subject: Re: JEP 175 - Review comments
>
> Volker,
>
> Can you or someone update
> http://hg.openjdk.java.net/ppc-aix-port/jdk8/hotspot to match latest
> sources in http://hg.openjdk.java.net/jdk8/jdk8/hotspot?
> I just tried to merge them and build Hotspot on x86 without success.
>
> Thanks,
> Vladimir
>
> On 6/4/13 7:04 AM, Simonis, Volker wrote:
>>
>> We intentionally used 'porters-dev' rather than'ppc-aix-port-dev' in the
>> beginning to address a broader audience for the initial discussions.
>>
>> But I'm happy to change that back to 'ppc-aix-port-dev' now.
>>
>> Regards,
>> Volker
>>
>>
>> ------------------------------------------------------------------------
>> *From:* Iris Clark [iris.clark at oracle.com]
>> *Sent:* Tuesday, June 04, 2013 3:50 PM
>> *To:* Simonis, Volker; Wintergerst, Michael; Lindenmaier, Goetz; Bernard
>> Traversat; Jeannette Hung; Azeem Jiva; David Therkelsen; Mikael
>> Vidstedt; Neil Richards; Steve Poole; luchsh at cn.ibm.com; Tim Ellison;
>> iris.clark at oracle.com
>> *Cc:* Alan Bateman; Vladimir Kozlov
>> *Subject:* RE: JEP 175 - Review comments
>>
>> Hi, Volker.
>>
>> Sorry about this, one more thing about the JEP...
>>
>> I think that the "Discussion" list probably needs to be updated to be
>> your Project's mailing list (ppc-aix-port-dev). Right now it's listed
>> as porters-dev.
>>
>> Thanks,
>>
>> iris
>>
>> *From:*Simonis, Volker [mailto:volker.simonis at sap.com]
>> *Sent:* Tuesday, June 04, 2013 12:12 AM
>> *To:* Iris Clark; Wintergerst, Michael; Lindenmaier, Goetz; Bernard
>> Traversat; Jeannette Hung; Azeem Jiva; David Therkelsen; Mikael
>> Vidstedt; Neil Richards; Steve Poole; luchsh at cn.ibm.com; Tim Ellison
>> *Cc:* Alan Bateman; Vladimir Kozlov
>> *Subject:* RE: JEP 175 - Review comments
>>
>> Hi Iris,
>>
>> you're right, the title is too clumsy - I just couldn't come up with
>> something better yesterday in the evening.
>>
>> "PowerPC/AIX Port" sounds good to me. If nobody complains, I'll take it.
>>
>> Thanks,
>> Volker
>>
>> ------------------------------------------------------------------------
>>
>> *From:*Iris Clark [iris.clark at oracle.com]
>> *Sent:* Tuesday, June 04, 2013 2:57 AM
>> *To:* Simonis, Volker; Wintergerst, Michael; Lindenmaier, Goetz; Bernard
>> Traversat; Jeannette Hung; Azeem Jiva; David Therkelsen; Mikael
>> Vidstedt; Neil Richards; Steve Poole; luchsh at cn.ibm.com
>> <mailto:luchsh at cn.ibm.com>; Tim Ellison
>> *Cc:* Alan Bateman; Vladimir Kozlov; iris.clark at oracle.com
>> <mailto:iris.clark at oracle.com>
>> *Subject:* RE: JEP 175 - Review comments
>>
>> Hi, Volker.
>>
>> I've just updated the JEP according to your suggestions.
>>
>> I'm not a Reviewer however, I think that the phrase "OpenJDK master
>> repositories" in the revised title is not ideal:
>>
>> --- a/jep-175.md Mon May 27 23:22:51 2013 +0400
>>
>> +++ b/jep-175.md Mon Jun 03 18:51:18 2013 +0200
>>
>> @@ -1,5 +1,5 @@
>>
>> JEP: 175
>>
>> -Title: Integrate PowerPC/AIX Port into JDK 8
>>
>> +Title: Integrate the PowerPC/AIX Port into the OpenJDK master repositories
>>
>> Author: Volker Simonis
>>
>> Organization: SAP AG
>>
>> Created: 2013/1/11
>>
>> Thinking out loud, what about just "PowerPC/AIX Port"? JEPs are all
>> about adding features to JDK Release Projects. There are lots of
>> examples of JEPs [1] which don't begin with verbs, e.g. "133: Unicode
>> 6.2", "148: Small VM", "172: DocLint", etc. The JEP itself contains
>> additional details.
>>
>> Perhaps others have suggestions?
>>
>> Am I right with my assumption that the targeted release will still be
>> JDK 8 (or 9/8u respectively) but that the targeted release will be set
>> in the "Release" header field of the JEP by the OpenJDK Lead (as
>> specified in the JEP specification)?
>>
>> Yes. Once that field is populated, the value will appear in the JEP
>> index [1], see the third column.
>>
>> Thanks,
>>
>> Iris
>>
>> [1]: http://openjdk.java.net/jeps/0
>>
>> *From:*Simonis, Volker [mailto:volker.simonis at sap.com]
>> *Sent:* Monday, June 03, 2013 10:10 AM
>> *To:* Iris Clark; Wintergerst, Michael; Lindenmaier, Goetz; Bernard
>> Traversat; Jeannette Hung; Azeem Jiva; David Therkelsen; Mikael
>> Vidstedt; Neil Richards; Steve Poole; luchsh at cn.ibm.com
>> <mailto:luchsh at cn.ibm.com>; Tim Ellison
>> *Cc:* Alan Bateman; Vladimir Kozlov
>> *Subject:* RE: JEP 175 - Review comments
>>
>> Hi,
>>
>> I've just updated the JEP according to your suggestions. Please find
>> the new version attached to this mail (I haven't checked the new version
>> in until now to give everybody a chance to comment on the changes).
>>
>> Am I right with my assumption that the targeted release will still be
>> JDK 8 (or 9/8u respectively) but that the targeted release will be set
>> in the "Release" header field of the JEP by the OpenJDK Lead (as
>> specified in the JEP specification)?
>>
>> In addition to the changes proposed by you I've added the contents of
>> the "Approach" section from Azeems "PPCAIX plan" to the "Description"
>> section of the JEP. I've also added links to the new "PowerPC/AIX Port
>> Integration Plan" [2] of our "PowerPC/AIX Port OpenJDK Wiki Space" [3]
>> to the JEP.
>>
>> The "PowerPC/AIX Port Integration Plan" in the Wiki is intended to hold
>> Azeems "PPCAIX plan" document.
>>
>> @Iris: could you please somehow arrange to give Azeem editing rights to
>> that page?
>>
>> @Azeem: could you please be so kind to past the contents of the "PPCAIX
>> plan" into that page (once you have the appropriate rights)? I saw that
>> the document is created from an Atlassian Confluence Wiki anyway and in
>> my unlimited naivety I imagine this could be a simple copy-and-paste
>> operation:) If that doesn't work so easily, please let me know how I
>> could help.
>>
>> If there are no objections I plan to checkin the new version of the JEP
>> tomorrow after our telephone call.
>>
>> Thank you and best regards,
>> Volker
>>
>> [2]: https://wiki.openjdk.java.net/pages/viewpage.action?pageId=13729959
>> [3]: https://wiki.openjdk.java.net/display/PPCAIXPort
>>
>> ------------------------------------------------------------------------
>>
>> *From:*Iris Clark [iris.clark at oracle.com]
>> *Sent:* Friday, May 31, 2013 8:48 PM
>> *To:* Wintergerst, Michael; Simonis, Volker; Lindenmaier, Goetz; Bernard
>> Traversat; Jeannette Hung; Azeem Jiva; David Therkelsen; Mikael
>> Vidstedt; Neil Richards; Steve Poole; luchsh at cn.ibm.com
>> <mailto:luchsh at cn.ibm.com>; Tim Ellison
>> *Cc:* iris.clark at oracle.com <mailto:iris.clark at oracle.com>; Alan
>> Bateman; Vladimir Kozlov
>> *Subject:* JEP 175 - Review comments
>>
>> Hi, Volker.
>>
>> JEP 175: Integrate PowerPC/AIX Port into JDK 8
>>
>> http://openjdk.java.net/jeps/175
>>
>> We're actively working to get your JEP to Funded. We had a few comments:
>>
>> -Recommend that "8" be removed from the JEP title, etc.
>>
>> -Recommend that the first Motivation bullet clearly indicate that it is
>> only covering PPC/AIX.
>>
>> -Recommend that the second Motivation bullet be modified to make it
>> clear that it applies to Hotspot only.
>>
>> (Instructions for editing the JEP may be found in the "Mechanics"
>> section at the bottom of JEP 1 [1].)
>>
>> Vladimir Kozlov (VM) and Alan Bateman (Core Libraries) are lined up to
>> be the JEP's reviewers. Once they're satisfied with your
>> changes/feedback they'll add themselves to the JEP's "Reviewed-by" line.
>>
>> Thanks,
>>
>> Iris Clark
>>
>> [1]: http://openjdk.java.net/jeps/1
>>
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