Compiling jar file using gcj

[Swapnil Jain]

On 01-Sep-09, at 3:02 PM, Andrew Haley wrote:

> Swapnil Jain wrote:
>> i am attaching the RXTXcomm.jar that i use
>>
>>
>>
>>
>> --------------------------------
>> Swapnil Jain
>> Indore
>> -----------------------------------------------
>>
>>
>>
>> On 31-Aug-09, at 4:52 PM, Andrew Haley wrote:
>>
>>> Swapnil Jain wrote:
>>>> i am using ubuntu 9.04 32 bit desktop edition.
>>>>
>>>> gcc (Ubuntu 4.3.3-5ubuntu4) 4.3.3
>>>> gcj (Ubuntu 4.3.3-5ubuntu4) 4.3.3
>>>> java version "1.6.0_14"
>>>> Java(TM) SE Runtime Environment (build 1.6.0_14-b08)
>>>>
>>>> i created a java project using netbeans. it uses 2 libraries
>>>> RXTXcomm.jar & mysql-connector-java-5.1.7-bin.jar
>>>>
>>>> after building the project thru netbeans i get the iRemote.jar  
>>>> file in
>>>> the dist folder.
>>>>
>>>> i want to compile it using gcj to create a binary file. i am  
>>>> using the
>>>> following command
>>>>
>>>> gcj -o iRemote.sh --main=iremote.controller.Controller
>>>> --classpath=RXTXcomm.jar:mysql-connector-java-5.1.7-bin.jar:  
>>>> iRemote.jar
>>>> RXTXcomm.jar mysql-connector-java-5.1.7-bin.jar -v
>>>>
>>>> i am getting a segmentation fault error (file attached)
>>>>
>>>>
>>>> i am also attaching strace of gcc & gcj
>>>>
>>>>
>>>> kindly let me know if any more information you need.
>>>
>>> All files.  I need to know how to get the exact same versions you
>>> are using.  Of course, this includes RXTXcomm.jar.
>
> You have run into a bug where gcj gets very confused if the same  
> file occurs
> more than once on the command line.  I need to look at a way to  
> detect this
> and abort with an error message instead of segfaulting.
>
> I cannot compile your example because a chunk of native code seems  
> to be
> missing from RXTXcomm.  You need to find this.
>
> However, once you find the native code for RXTXcomm, something like
>
> <compile the RXTX native code to native.o>
> gcj -c RXTXcomm.jar -o RXTXcomm.o
> gcj -c --classpath=RXTXcomm.jar iRemote.jar -o iRemote.o
> gcj --main=iremote.controller.Controller native.o RXTXcomm.o iRemote.o
>
> should work.
>
> Andrew.

> gcj -c RXTXcomm.jar -o RXTXcomm.o

THIS GOES OK

> gcj -c --classpath=RXTXcomm.jar iRemote.jar -o iRemote.o

THIS GOES OK

> gcj --main=iremote.controller.Controller -o native.o RXTXcomm.o  
> iRemote.o

again too many errors, i am attaching the error log


------
Swapnil
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