Accessing serial port on Arm platform

Question

I need to read and write on the serial ports of an ARM platform with a Java application, running a cross-compiled JVM.
I considered both solutions java COMMAPI and JNI, but the problem is the same: I haven't library to support them: libLinuxSerialParallel.so, to support COMMAPI, or libnativelib.so, to implement native methods for JNI.
How can I have this library for my ARM architecture? Is it possible to cross-compile sources for it?
Thanks in advance.
regards.

Answer 1

Hello,
I have a igep boar with arm core.
I am trying to access to serial port through java.
I am using rxtx (gnu.io) http://rxtx.qbang.org.
I dowloaded the api for arm architecture (http://rxtx.qbang.org/ToyBox/2.1-7-build1/Linux/glibc-2.3.5/), but there is a problem with dependencies with glib.
This is the error when i try to call from java:
java.lang.UnsatisfiedLinkError: /home/jdoe/equinox-SDK-3.5.2/plugins/configuration/org.eclipse.osgi/bundles/2/1/.cp/librxtxSerial.so: /lib/vfp/libpthread.so.0: version `GLIBC_2.0' not found (required by /home/jdoe/equinox-SDK-3.5.2/plugins/configuration/org.eclipse.osgi/bundles/2/1/.cp/librxtxSerial.so) thrown while loading gnu.io.RXTXCommDriver
I tested the librxtxSerial.so:
jdoe@ubuntu:~$ ldd librxtxSerial.so
./librxtxSerial.so: /lib/vfp/libpthread.so.0: version `GLIBC_2.0' not found (required by ./librxtxSerial.so)
./librxtxSerial.so: /lib/vfp/libc.so.6: version `GLIBC_2.1.3' not found (required by ./librxtxSerial.so)
./librxtxSerial.so: /lib/vfp/libc.so.6: version `GLIBC_2.1' not found (required by ./librxtxSerial.so)
./librxtxSerial.so: /lib/vfp/libc.so.6: version `GLIBC_2.0' not found (required by ./librxtxSerial.so)
libpthread.so.0 => /lib/vfp/libpthread.so.0 (0x40022000)
libc.so.6 => /lib/vfp/libc.so.6 (0x40041000)
/lib/ld-linux.so.3 (0x2a000000)
And this is my glic version:
jdoe@ubuntu:~$ ls -al /lib/libc*
-rwxr-xr-x 1 root root 1201672 2009-04-09 18:02 /lib/libc-2.9.so
lrwxrwxrwx 1 root root 14 2010-07-01 16:52 /lib/libcap.so.1 -> libcap.so.1.10
-rw-r--r-- 1 root root 13984 2008-11-14 02:47 /lib/libcap.so.1.10
lrwxrwxrwx 1 root root 14 2010-06-16 17:21 /lib/libcap.so.2 -> libcap.so.2.11
-rw-r--r-- 1 root root 13800 2008-11-17 06:14 /lib/libcap.so.2.11
-rw-r--r-- 1 root root 181816 2009-04-09 18:02 /lib/libcidn-2.9.so
lrwxrwxrwx 1 root root 14 2010-06-16 17:21 /lib/libcidn.so.1 -> libcidn-2.9.so
lrwxrwxrwx 1 root root 17 2010-06-16 17:21 /lib/libcom_err.so.2 -> libcom_err.so.2.1
-rw-r--r-- 1 root root 9648 2009-02-12 16:55 /lib/libcom_err.so.2.1
-rw-r--r-- 1 root root 38400 2009-04-09 18:02 /lib/libcrypt-2.9.so
-rw-r--r-- 1 root root 1210776 2009-04-04 03:06 /lib/libcrypto.so.0.9.8
lrwxrwxrwx 1 root root 15 2010-06-16 17:21 /lib/libcrypt.so.1 -> libcrypt-2.9.so
lrwxrwxrwx 1 root root 11 2010-06-16 17:21 /lib/libc.so.6 -> libc-2.9.so
What should I do?