php-java-bridge-users Mailing List for PHP/Java Bridge

hi,

On Wed, Jul 2, 2008 at 5:06 AM,
<php...@li...> wrote:
>> gcj (GCC) 4.1.2 20061115 (prerelease) (Debian 4.1.1-20)
>
> supports only 32 Bit code generation.

did not realize that; thought it gen'd 64bit :-/  good to know.

> Please use a real Java implementation instead. -- GCJ compilation is a waste of time, anyway. The JIT compiler from the OpenJDK generates code which executes up to 5 times faster than the code generated from GCJ.

i've installed IBM's jdk se 6 locally,

 which java
  /home/sc/jdk16-ibm/bin/java
 java -version
  java version "1.6.0"
  Java(TM) SE Runtime Environment (build pxa6460sr1-20080416_01(SR1))
  IBM J9 VM (build 2.4, J2RE 1.6.0 IBM J9 2.4 Linux amd64-64
jvmxa6460-20080415_18762 (JIT enabled, AOT enabled)
  J9VM - 20080415_018762_LHdSMr
  JIT  - r9_20080415_1520
  GC   - 20080415_AA)
  JCL  - 20080412_01

and the php-java-bridge builds "--with-java=$HOME/jdk16-ibm", installs
without error.

i'm on a shared Apache host, and note that on nav to my site, "top" shows,

   1463 sc 15 0 81800  38m  25m S 0  0.2   0:00.12 gij-4.1

which is the gcc JIT, of course.

as the host/server ENV is independent of _my_ ENV, i'm guessing that
to get the server to invoke the IBM JIT for "my"
php-java-bridge/jjava.so extension, i need to specify some AddHandler
directive in my .htaccess ?

if so, are there any docs/examples on this ? (haven't found any yet ...)

or, different method?

thanks!

Hi,

probably 

> gcj (GCC) 4.1.2 20061115 (prerelease) (Debian 4.1.1-20)

supports only 32 Bit code generation.

Please use a real Java implementation instead. -- GCJ compilation is a waste of time, anyway. The JIT compiler from the OpenJDK generates code which executes up to 5 times faster than the code generated from GCJ.


Regards,
Jost Boekemeier




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hi,

i'm doing a 1st install of php-java-bridge_5.2.2.

reading @:

	http://php-java-bridge.sourceforge.net/doc/faq.php

i note:

	#Can I use Java libraries without installing java?
	
	Yes. On a GNU operating system (e.g.: GNU/Linux, GNU/windows (aka
"cygwin"), ...) you can use the GCC compiler to compile Java classes
to native code. Simply compile the C based extension and omit the
--with-java= configure option. The bridge will use the libgcj library,
which is part of the GNU gcc compiler. This library also uses much
less system resources (memory, files) than a "real" Java VM.

on my box,

	uname -o
		GNU/Linux  -> Debian
	gcj --version
		gcj (GCC) 4.1.2 20061115 (prerelease) (Debian 4.1.1-20)
	autoconf --version
		autoconf (GNU Autoconf) 2.62
	libtool --version
		ltmain.sh (GNU libtool) 2.2.4
	automake --version
		automake (GNU automake) 1.10.1
	which java
		/home/sc/jdk/bin/java
	java -version
		java version "1.6.0_06"
		Java(TM) SE Runtime Environment (build 1.6.0_06-b02)
		Java HotSpot(TM) 64-Bit Server VM (build 10.0-b22, mixed mode)

but @,

	cd php-java-bridge-5.2.2
	phpize
	./configure

the process dies at,

	...
	FATAL: Native compilation not supported on this system.
	Install a java SDK and run: ./configure --with-java=<JAVA_HOME>
	Back-end configuration failed.
	Please install the recommended autoconf, libtool and automake versions
	or disable back-end configuration and use the pre-compiled J2EE back-end:
	
		./configure --disable-backend --with-java=<JAVA_HOME>
	
	configure: error: ./configure.gnu failed for server

i thought i had the prereqs taken care of for a java-less install.

what am i missing?

thanks!