[kaffe] Re: Problem with rxtx

[Fabien Renaud]

Fabien Renaud wrote:

> Hello !!
>
> I´m still with my problems ;)
>
> Well I don´t think this one is specific to ARM ( I hope, so maybe 
> you´ll be able to help me :) )
>
> So, when I want to run a simple sample to communicate with serial 
> interface ( I have rxtx lib) I have a lot of things on my screen 
> (which seem ok), then this :
>
> RXTX WARNING:  This library was compiled to run with OS release 
> 2.4.20_dev and you are currently running OS release 2.4.21-rmk2
> -pxa1.  In some cases this can be a problem.  Try recompiling RXTX if 
> you notice strange behavior.  If you just compiled RXTX m
> ake sure /usr/include/linux is a symbolic link to the include files 
> that came with the kernel source and not an older copy.
>
> press enter to continue
>
> If I press continue nothing happened.
>
> This is the backtrace :
>
> #0  0x4029939c in *__GI___poll (fds=0xbfffdd28, nfds=1, timeout=-1)
>    at ../sysdeps/unix/sysv/linux/poll.c:85
> #1  0x400cdc58 in handleIO ()
>   from /home/java/kaffe/jre/lib/arm/libkaffevm-1.1.4.so
> #2  0x400cd924 in reschedule ()
>   from /home/java/kaffe/jre/lib/arm/libkaffevm-1.1.4.so
> #3  0x400cb380 in suspendOnQThread ()
>   from /home/java/kaffe/jre/lib/arm/libkaffevm-1.1.4.so
> #4  0x400ce668 in jcondvar_wait ()
>
> With sablevm the program runs when I press enter.
>
> I attach SimpleWrite.java
>
>
> Someone have ever run rxtx with kaffe ?
>
> Fabien
>
>------------------------------------------------------------------------
>
>import java.io.*;
>import java.util.*;
>import gnu.io.*;
>
>
>public class SimpleWrite {
>    static Enumeration portList;
>    static CommPortIdentifier portId;
>    static String messageString = "Hello, world!\n";
>    static SerialPort serialPort;
>    static OutputStream outputStream;
>
>    public static void main(String[] args) {
>        portList = CommPortIdentifier.getPortIdentifiers();
>        while ( portList.hasMoreElements() ) {
>            portId = (CommPortIdentifier) portList.nextElement();
>            if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
>                if (portId.getName().equals("/dev/ttyS3")) {
>                    try {
>                        serialPort = (SerialPort)
>			portId.open("SimpleWriteApp", 2000);
>			System.out.println("ok");
>                    } catch (PortInUseException e) {
>			System.out.println("not ok");
>		    }
>                    try {
>                        outputStream = serialPort.getOutputStream();
>                    } catch (IOException e) {}
>		    System.out.println("test 3");
>                    try {
>                        serialPort.setSerialPortParams(9600,
>                            SerialPort.DATABITS_8,
>                            SerialPort.STOPBITS_1,
>                            SerialPort.PARITY_NONE);
>                    } catch (UnsupportedCommOperationException e) {}
>                    try {
>                        outputStream.write(messageString.getBytes());
>                    } catch (IOException e) {}
>		    serialPort.close();
>                }
>            }
>        }
>    }
>}
>  
>

I have now more informations with kaffe-1.1.4:

Program received signal SIGINT, Interrupt.
[Switching to Thread 16384 (LWP 743)]
0x4025c39c in *__GI___poll (fds=0xbfffe054, nfds=1, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:85
85      ../sysdeps/unix/sysv/linux/poll.c: No such file or directory.
        in ../sysdeps/unix/sysv/linux/poll.c
(gdb) where
#0  0x4025c39c in *__GI___poll (fds=0xbfffe054, nfds=1, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:85
#1  0x4009217c in handleIO (canSleep=1) at jthread.c:2147
#2  0x40091de4 in reschedule () at jthread.c:2026
#3  0x4008fb78 in suspendOnQThread (jtid=0xc0018, queue=0xc0028, timeout=-1)
    at jthread.c:911
#4  0x40092a34 in jcondvar_wait (cv=0xc0028, lock=0xc0020, timeout=-1)
    at jthread.c:2365

The line in jthread.c is this one :

#if USE_POLL
        r = poll(pollarray, nfd, sleep ? -1 : 0);   <- line 2147
#else


I tried with HEAD too and I have segfault :

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 796)]
callMethodA (meth=0x1b8cb8, func=0x1b8cb8, obj=0x0, args=0xbfffe198,
    ret=0xbfffe964, promoted=1) at support.c:653
653     support.c: No such file or directory.
        in support.c
(gdb) where
#0  callMethodA (meth=0x1b8cb8, func=0x1b8cb8, obj=0x0, args=0xbfffe198,
    ret=0xbfffe964, promoted=1) at support.c:653
#1  0x4006eba8 in virtualMachine (meth=0x1b8cb8, arg=0xbfffe190,
    retval=0xbfffe964, thread_data=0xa902c) at machine.c:137
#2  0x400710a4 in runVirtualMachine (meth=0x1b8e20, lcl=0xbfffe160,
    sp=0xbfffe188, npc=41, retval=0xbfffe964, mjbuf=0xbfffe1e8,
    thread_data=0xa902c) at kaffe.def:2832

Is someone has now an idea :)

Cheers,

Fabien