OpenJDK zero build

[Andrew Hughes]

----- Original Message -----
> Hi,
> 
> This seemed like an appropriate alias for this question. Please redirect me
> if it isn't.

There is zero-dev at openjdk.java.net for Zero.  This mailing list is primarily
for IcedTea, but will do.

> 
> I'm trying to build the OpenJDK (specifically Hotspot) with only a C++
> interpreter  (which I understand is the jvmgzero target) like I would a
> regular OpenJDK build (i.e. not using icedtea) but can't get it to work.
> 
> This is the command I'm using to build
> $ ZERO_ARCHDEF=amd64 ZERO_LIBARCH=amd64 ZERO_ENDIANNESS=little
> ZERO_ARCHFLAG="-m64" ARCH_DATA_MODEL=64 ZERO_BUILD=true ... make jvmgzero
> 

Did you not run jdk/make/jdk_generic_profile.sh?  It sets these variables for
you.

I always just use the default target.

>  
> With this I could get to the linking stage, but it failed complaining that
> multiple ffi symbols were missing. This I could fix, trivially, by adding an
> -lffi switch in the Makefile.
> 
> This let me link and create test_gamma, which however hangs every time I run
> it [1].
> 
> Given it didn't work out of the box I wonder if building zero outside of
> icedtea is even supported? If it is, could someone tell me the exact set of
> flags I'd use to get a working build?
> 

You don't say anything about what version you're using.  I've built Zero using
plain OpenJDK (i.e. the hard way) a few times in the past, but I believe there
have been issues with recent versions in 7u.  On x86_64 GNU/Linux, I haven't
been able to build it with or without IcedTea with any HotSpot later than the
one in 2.1.x.

> Thanks.
> --
> 
> 
> Krishna S
> skrsn at yahoo.com
> 
> [1] http://pastebin.com/NeDq06cc

-- 
Andrew :)

Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)

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