Need some Info regarding OpenJDK for MIPS.

[Kumar, Kiran 3. (NSN - IN/Bangalore)]

Hi Ao
 
I got some refrence to the people who knew chinese language ,it would be
very
helpful in our work if you share those document. Thanks you.
 


Thanks and Regards 
------------------------------------- 

Kiran Kumar P 
Mobile: 9880758736 

 

________________________________

From: aoqi1986 at gmail.com [mailto:aoqi1986 at gmail.com] On Behalf Of ext Ao
Qi
Sent: Saturday, December 25, 2010 1:50 PM
To: Kumar, Kiran 3. (NSN - IN/Bangalore)
Cc: ext YANG Yongqiang; mips-port at openjdk.java.net
Subject: Re: Need some Info regarding OpenJDK for MIPS.


Hi Kiran,
 
There are some Chinese documents about porting jvm to mips. If you have
someone who can read Chinese, these documents may be helpful. If you
need them, please let me know and I would send you the documents.
 
Ao Qi


2010/12/24 Kumar, Kiran 3. (NSN - IN/Bangalore) <kiran.3.kumar at nsn.com>


	Hi Ynag
	
	I am facing some difficulties in chnaging the endian to big
endian,can u have any
	Design document for the OpenJDK.
	




	Thanks and Regards
	-------------------------------------
	
	Kiran Kumar P
	Mobile: 9880758736
	
	-----Original Message-----
	From: ext YANG Yongqiang [mailto:yangyongqiang at loongson.cn]
	
	Sent: Thursday, December 23, 2010 12:33 PM
	To: Kumar, Kiran 3. (NSN - IN/Bangalore)
	Cc: ext YANG Yongqiang; mips-port at openjdk.java.net
	Subject: RE: Need some Info regarding OpenJDK for MIPS.
	
	Hi Kiran,
	
	I think it will need not too much effort to do this job. The job
could be
	divided into 2 phases.
	
	First, you can change template interperter back to big endian.
	To do this, you need to implement your bytes operations, which
are in
	hotspot/src/cpu/mips/vm/bytes_mips*.
	
	Second, you can make c1 support MIPS with big endian. You need
to
	implement  native instructions which are in
	hotspot/src/cpu/mips/vm/nativeInst_mips*.
	
	During our porting, we had a premise that destination processor
is little
	endian.  Thus maybe there are some ugly codes which rely on the
premise.
	This will need your some efforts to detect these codes.
	
	
	Cheers,
	Yongqiang.
	
	> Hi Yang
	>
	> Thanks for the reply ,what is the effort needed to change it
back
	> to big endian.If you have any idea please let me know ,as I am
intersted
	> to change it back
	> to bigendian as the Hadware we use is MIPS big endian.
	>
	>
	> Thanks and Regards
	> -------------------------------------
	>
	> Kiran Kumar P
	> Mobile: 9880758736
	>
	> -----Original Message-----
	> From: ext YANG Yongqiang [mailto:yangyongqiang at loongson.cn]
	> Sent: Thursday, December 23, 2010 12:10 PM
	> To: Kumar, Kiran 3. (NSN - IN/Bangalore)
	> Cc: ext YANG Yongqiang; mips-port at openjdk.java.net
	> Subject: RE: Need some Info regarding OpenJDK for MIPS.
	>
	>>
	>> Hi  YANG
	>>
	>> Here I have one question as JAVA by defaullt is big endian
,correct me
	>> if
	>> I am wrong.
	>> What I understood is it is ported to  little endian now I
have to change
	>> it back to use big endian right.
	>
	> Yes, you are right.
	> BTW: The destination of this porting is Loongson processor
which is little
	> endian, so we must change big endian to little endian .
	>
	>>
	>>
	>>
	>>
	>> Thanks and Regards
	>> -------------------------------------
	>>
	>> Kiran Kumar P
	>> Mobile: 9880758736
	>>
	>> -----Original Message-----
	>> From: ext YANG Yongqiang [mailto:yangyongqiang at loongson.cn]
	>> Sent: Thursday, December 23, 2010 11:58 AM
	>> To: Kumar, Kiran 3. (NSN - IN/Bangalore)
	>> Cc: mips-port at openjdk.java.net
	>> Subject: Re: Need some Info regarding OpenJDK for MIPS.
	>>
	>> Hi Kiran Kumar P,
	>>
	>> Now it only supports MIPS on little Endian architecture.  If
you want a
	>> version supporting MIPS on big Endian architecture.  You just
need to
	>> change native instructions and bytes instructions yourself.
	>>
	>> Cheers,
	>> Yongqiang.
	>>
	>>>
	>>> HI
	>>>
	>>> I am Kiran from Nokia Siemens Bangalore, I came across u r
website
	>>> http://icedtea.classpath.org/hg/openjdk6-mips/summary
	>>> That I came to know that OpenJDK is available for MIPS ,we
are also
	>>> looking for java on MIPS.
	>>>
	>>> Here my question is this OpenJDK supports MIPS on big Endian
	>>> architecure,as we are looking for OpenJDK on MIPS for big
Endian.
	>>> Thank you.
	>>>
	>>>
	>>> Thanks and Regards
	>>> -------------------------------------
	>>>
	>>> Kiran Kumar P
	>>> Mobile: 9880758736
	>>>
	>>>
	>>
	>>
	>> --
	>> Yongqiang
	>>
	>>
	>>
	>
	>
	
	> --
	> Yongqiang
	>
	>
	>
	
	
	--
	Yongqiang
	
	
	


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