RFR: JDK8u back port of JDK-8047763, JDK-8042059, JDK-8046408, JDK-8048232, JDK-8046471, JDK-8046611 and JDK-8044363

[Gerald Thornbrugh]

Hi Dan,

I agree with your changes.

Thanks!

Jerry
> Greetings,
>
> I'm sponsoring Jerry's backport of the Linux SPARC fixes to JDK8u.
> As part of my sponsorship, I've separated the changes into distinct
> changesets corresponding to the original JDK9 changesets. During
> my sanity check, I noticed that the JDK-8048232 backport did not
> exactly match the JDK9 version. Jerry had filtered out the PPC-32
> bit portions of the change since they are not applicable to JDK8u.
> Jerry and I have since decided that it is better to match the
> original JDK9 changeset since the PPC-32 bit portions in the two
> files will have no effect in JDK8u.
>
> For the record, here's the diffs relative to Jerry's last webrev:
>
> $ diff <jerry_path>/hotspot/webrev/raw_files/new/make/linux/Makefile 
> hotspot/webrev/raw_files/new/make/linux/Makefile
>
> 73c73,75
> <   FORCE_TIERED=0
> ---
> >   ifeq ($(ARCH_DATA_MODEL), 64)
> >     FORCE_TIERED=0
> >   endif
>
>
> $ diff 
> <Jerry_path>/hotspot/webrev/raw_files/new/make/linux/makefiles/defs.make 
> hotspot/webrev/raw_files/new/make/linux/makefiles/defs.make
>
> 101c101
> < # PPC64
> ---
> > # PPC
> 105,109c105,114
> <   ARCH_DATA_MODEL  = 64
> <   MAKE_ARGS        += LP64=1
> <   PLATFORM         = linux-ppc64
> <   VM_PLATFORM      = linux_ppc64
> <   HS_ARCH          = ppc
> ---
> >   ifeq ($(ARCH_DATA_MODEL), 64)
> >     MAKE_ARGS        += LP64=1
> >     PLATFORM         = linux-ppc64
> >     VM_PLATFORM      = linux_ppc64
> >   else
> >     ARCH_DATA_MODEL  = 32
> >     PLATFORM         = linux-ppc
> >     VM_PLATFORM      = linux_ppc
> >   endif
> >   HS_ARCH = ppc
>
>
> Mikael and Jerry,
>
> Please confirm that you are good with these latest changes.
>
> Dan
>
>
> On 12/17/15 12:16 PM, Gerald Thornbrugh wrote:
>> Hi Mikael,
>>
>> Thanks!
>>
>> Gerald
>>>
>>> Changes look good.
>>>
>>> This is touching PPC specific logic in the makefiles - the same 
>>> logic I accidentally broke in the original change for[1], which 
>>> resulted in[2]. I've cc:ed the PPC folks, hopefully they can help 
>>> verify that this works as expected.
>>>
>>> Cheers,
>>> Mikael
>>>
>>> [1] https://bugs.openjdk.java.net/browse/JDK-8046471
>>> [2] https://bugs.openjdk.java.net/browse/JDK-8048232
>>>
>>> On 2015-12-16 08:55, Gerald Thornbrugh wrote:
>>>> Hi Everyone,
>>>>
>>>> I am back porting a series of JDK9 Linux/SPARC fixes to JDK8u so 
>>>> Linux/SPARC is supported in JDK8.
>>>>
>>>> There are changes to three repositories - jdk8u, jdk8u/hotspot and 
>>>> jdk8u/jdk.
>>>>
>>>> Here is the webrev:
>>>>
>>>> http://cr.openjdk.java.net/~gthornbr/linux-sparc-jdk8u/ 
>>>> <http://cr.openjdk.java.net/~gthornbr/linux-sparc-jdk8u/>
>>>>
>>>> Here is a breakdown of the changes:
>>>>
>>>> jdk8u:
>>>>
>>>> These changes are related to changing the definition of “ARCH” 
>>>> within the build process and adding
>>>> the “sparc64” as a recognized platform.
>>>>
>>>> File Related CR
>>>> common/autoconf/generated-configure.sh 
>>>> https://bugs.openjdk.java.net/browse/JDK-8047763 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8047763>
>>>> common/autoconf/hotspot-spec.gmk.in 
>>>> https://bugs.openjdk.java.net/browse/JDK-8047763 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8047763>
>>>> common/autoconf/platform.m4 
>>>> https://bugs.openjdk.java.net/browse/JDK-8047763 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8047763>
>>>>
>>>>
>>>> jdk8u/hotspot:
>>>>
>>>> These changes are related to including the correct include file, 
>>>> using the new definition of “ARCH” and
>>>> cleaning up debugging code that is outdated and difficult to support.
>>>>
>>>> The change for JDK-8046471 updated the value of the "ARCH" variable 
>>>> used in the Hotspot makefiles
>>>> from OPEN_TARGET_CPU_LEGACY to OPENJDK_TARGET_CPU_ARCH. Because of 
>>>> this change
>>>> some of the PPC uses of "ARCH" also needed to change. The PPC 
>>>> portion of the fix was incorrect and
>>>> had to be address by JDK-8048232 to make it work correctly.
>>>>
>>>> File Related CR
>>>> hotspot/agent/src/os/linux/libproc.h 
>>>> https://bugs.openjdk.java.net/browse/JDK-8042059 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8042059>
>>>> https://bugs.openjdk.java.net/browse/JDK-8046408 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8046408>
>>>> hotspot/make/linux/Makefile 
>>>> https://bugs.openjdk.java.net/browse/JDK-8048232 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8048232>
>>>> hotspot/make/linux/makefiles/defs.make 
>>>> https://bugs.openjdk.java.net/browse/JDK-8046471 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8046471>
>>>> https://bugs.openjdk.java.net/browse/JDK-8048232 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8048232>
>>>> hotspot/src/cpu/sparc/vm/frame_sparc.cpp 
>>>> https://bugs.openjdk.java.net/browse/JDK-8046611 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8046611>
>>>> hotspot/src/vm/runtime/safepoint.cpp 
>>>> https://bugs.openjdk.java.net/browse/JDK-8046611 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8046611>
>>>>
>>>>
>>>> jdk8u/jdk:
>>>>
>>>> This change removed unneeded CFLAGS and LDFLAGS.
>>>>
>>>> File Related CR
>>>> jdk/make/CompileLaunchers.gmk 
>>>> https://bugs.openjdk.java.net/browse/JDK-8044363 
>>>> <https://bugs.openjdk.java.net/browse/JDK-8044363>
>>>>
>>>>
>>>>
>>>> Please let me know if you have any questions or concerns.
>>>>
>>>> Gerald
>>>
>>
>>
>