Bug#457078: libjvm.so: wrong ELF class: ELFCLASS32

[Kai Hendry]

Package: ia32-sun-java6-bin
Version: 6-03-2
Severity: normal

In a similar vein to:
https://bugs.launchpad.net/ubuntu/+source/sun-java6/+bug/150926

I am trying to run libjvm.so from my amd64 system. I assume there must be some
workaround, hence the existance of the "ia32-sun-java6-bin" package. Though I
am still at a loss how to open libjvm from my amd64 environment. Is there
something like linux32 for doing this? Any tips much appreciated.

x61:~/code/tests/JSXlib/unix% make
build options:
CFLAGS   = -g -Wall -O2 -I. -I/usr/include 
-I/usr/lib/jvm/java-6-sun-1.6.0.03/include/ 
-I/usr/lib/jvm/java-6-sun-1.6.0.03/include/linux -DXP_UNIX
LDFLAGS  = -g -L/usr/lib -lc -ldl
CC       = g++
CC main.cpp
CC -o main
x61:~/code/tests/JSXlib/unix% ./main 
/usr/lib/jvm/ia32-java-6-sun-1.6.0.03/jre/lib/i386/client/libjvm.so: wrong ELF 
class: ELFCLASS32

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.24-rc5-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages ia32-sun-java6-bin depends on:
ii  debconf [debconf-2.0]         1.5.17     Debian configuration management sy
ii  ia32-libs                     2.2        ia32 shared libraries for use on a
ii  libc6-i386                    2.7-4      GNU C Library: 32bit shared librar
ii  sun-java6-jre                 6-03-2     Sun Java(TM) Runtime Environment (

Versions of packages ia32-sun-java6-bin recommends:
ii  ia32-libs                     2.2        ia32 shared libraries for use on a
ii  lib32asound2                  1.0.15-3   ALSA library (32 bit)
ii  lib32gcc1                     1:4.2.2-4  GCC support library (32 bit Versio

-- debconf information:
* shared/accepted-sun-dlj-v1-1: true
  shared/error-sun-dlj-v1-1:
* shared/present-sun-dlj-v1-1:

#include <jni.h>
#include <dlfcn.h>
#include <stdio.h>
#include <stdlib.h>

int
main(int argc, char **argv)
{
   void *handle;

   handle = dlopen("/usr/lib/jvm/ia32-java-6-sun-1.6.0.03/jre/lib/i386/client/libjvm.so", RTLD_NOW);
   if (!handle) {
       fprintf(stderr, "%s\n", dlerror());
       exit(EXIT_FAILURE);
   }

   dlerror();    /* Clear any existing error */

}

include config.mk

SRC = main.cpp
OBJ = ${SRC:.cpp=.o}

all: options main

options:
	@echo build options:
	@echo "CFLAGS   = ${CFLAGS}"
	@echo "LDFLAGS  = ${LDFLAGS}"
	@echo "CC       = ${CC}"

.cpp.o:
	@echo CC $<
	@${CC} -fPIC -c ${CFLAGS} $<

#${OBJ}: main.h

main: ${OBJ}
	@echo CC -o $@
	@${CC} -o $@ ${OBJ} ${LDFLAGS}

clean:
	@echo cleaning
	@rm -f main ${OBJ}

.PHONY: all options clean dist install uninstall

# includes and libs

INCS = -I. -I/usr/include -I/usr/lib/jvm/java-6-sun-1.6.0.03/include/ -I/usr/lib/jvm/java-6-sun-1.6.0.03/include/linux
LIBS = -L/usr/lib -lc -ldl

# debugging
CFLAGS = -g -Wall -O2 ${INCS} -DXP_UNIX
LDFLAGS = -g ${LIBS}

# compiler and linker
CC = g++