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

Thanks a lot. This was really helpful.

On 10/13/05, Jost Boekemeier <jos...@ya...> wrote:
> Hi Mohammed,
>
> > knows where the jvm
> > gets initialized and started so that i can set some
> > env variables that
>
> when the RunJavaBridge executable exists in the php
> extension dir it will be called instead of java,
> please see the "java command" from phpinfo() for
> details.
>
> On RedHat Fedora the following could be used:
>
> # rename RunJavaBridge
> mv /usr/lib/php/modules/RunJavaBridge \
>    /usr/lib/php/modules/RunJavaBridge.bin
>
> # create a custom RunJavaBridge script
> cat >/usr/lib/php/modules/RunJavaBridge <<\EOF1
> #!/bin/sh
> # This is a custom script which calls the JVM
> # with additional arguments.
>
> $java=3D$1; shift
> $args=3D"$@";
> $myArgs=3D"-Dphp.java.bridge.threads=3D30";
>
> exec /usr/lib/php/modules/RunJavaBridge.bin \
>      $java \
>      $myArgs \
>      $args
> EOF1
>
> # make our script executable.
> chmod +x /usr/lib/php/modules/RunJavaBridge
>
> (The above example calls the saved RunJavaBridge.bin
> because it still carries the javabridge_t security
> context. If you don't have Security Enhanced Linux or
> if you have tagged your RunJavaBridge script with
> javabridge_t, you can remove the old RunJavaBridge.bin
> and call java directly.)
>
> Regards,
> Jost Boekemeier
>
>
>
>
>
>
>
> ___________________________________________________________
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en: http://mail.yahoo.de
>

Hi Mohammed,

> knows where the jvm
> gets initialized and started so that i can set some
> env variables that

when the RunJavaBridge executable exists in the php
extension dir it will be called instead of java,
please see the "java command" from phpinfo() for
details. 

On RedHat Fedora the following could be used:

# rename RunJavaBridge
mv /usr/lib/php/modules/RunJavaBridge \
   /usr/lib/php/modules/RunJavaBridge.bin

# create a custom RunJavaBridge script
cat >/usr/lib/php/modules/RunJavaBridge <<\EOF1
#!/bin/sh
# This is a custom script which calls the JVM
# with additional arguments.

$java=$1; shift
$args="$@";
$myArgs="-Dphp.java.bridge.threads=30";

exec /usr/lib/php/modules/RunJavaBridge.bin \
     $java \
     $myArgs \
     $args
EOF1

# make our script executable.
chmod +x /usr/lib/php/modules/RunJavaBridge

(The above example calls the saved RunJavaBridge.bin
because it still carries the javabridge_t security
context. If you don't have Security Enhanced Linux or
if you have tagged your RunJavaBridge script with
javabridge_t, you can remove the old RunJavaBridge.bin
and call java directly.)

Regards,
Jost Boekemeier



	

	
		
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how to pass env variables at jvm startup? i need to pass some other
environment variables to the vm.

i am using gentoo with apache2 and php5; if anyone knows where the jvm
gets initialized and started so that i can set some env variables that
will be real helpful.

right now when apache2 is started the php-java-bridge is started with
the parameters specified in the java.ini. i just need to find out
where and how the jvm is initialized.

thanks a lot.

Irfan

how to pass env variables at jvm startup? i need to pass some other
environment variables to the vm.

i am using gentoo with apache2 and php5; if anyone knows where the jvm
gets initialized and started so that i can set some env variables that
will be real helpful.

right now when apache2 is started the php-java-bridge is started with
the parameters specified in the java.ini. i just need to find out
where and how the jvm is initialized.

thanks a lot.

Irfan

Jost Boekemeier schrieb:

>Anyway, a strace `which javac` test.java 2>strace.log
>should give some insight.
>  
>

Seems I can't ececut anything from java.

if I type:

/opt/ibm-jdk-bin-1.4.2/bin/javac

I only get

"Killed"

on commandline.

When I use strace, the end is:

open("/opt/ibm-jdk-bin-1.4.2/jre/bin/libjitc.so", O_RDONLY) = 20
read(20, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300}\1"..., 
512) = 512
fstat64(20, {st_mode=S_IFREG|0755, st_size=2492116, ...}) = 0
mmap2(NULL, 3870384, PROT_READ|PROT_EXEC, MAP_PRIVATE, 20, 0) = 0x2f510000
mmap2(0x2f75f000, 61440, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 
20, 0x24e) = 0x2f75f000
mmap2(0x2f76e000, 1388208, PROT_READ|PROT_WRITE, 
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2f76e000
close(20)                               = 0
mprotect(0x2f510000, 2420736, PROT_READ|PROT_WRITE) = 0
mprotect(0x2f510000, 2420736, PROT_READ|PROT_EXEC) = 0
open("/etc/mtab", O_RDONLY)             = 20
fstat64(20, {st_mode=S_IFREG|0644, st_size=105, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0x2e6cf000
read(20, "/dev/hda3 / ext3 rw,noatime 0 0\n"..., 4096) = 105
close(20)                               = 0
munmap(0x2e6cf000, 4096)                = 0
open("/proc/stat", O_RDONLY)            = 20
fstat64(20, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0x2e6cf000
read(20, "cpu  8076674 231275 3399085 7254"..., 4096) = 713
read(20, "", 4096)                      = 0
close(20)                               = 0
munmap(0x2e6cf000, 4096)                = 0
uname({sys="Linux", node="rainbow", ...}) = 0
+++ killed by SIGKILL +++


My kernel-version  is 2.4.31, with grsecurity patches (PAX...), perhaps 
it has something to do with that?

I have never used Java on Linux, so perhaps I'm missing something.

It's strange, I can execute "java", but "javac" gets killed somehow.

regards
Andreas