Problem with AClass.class

Problem with AClass.class

[Ryszard Kabatek]

gcj (gcc version 3.1 20020325 (prerelease)) on linux

I got a linking error because of using the class member function:
AClass.class.getName()

/tmp/cc3aa1t7.o: In function `main':
/tmp/cc3aa1t7.o(.text+0x1d): undefined reference to `AClass::class$'
collect2: ld returned 1 exit status

What is wrong?

Regards
-- 
Ryszard Kabatek

Re: Problem with AClass.class

[Bryce McKinlay]

Ryszard Kabatek wrote:

>gcj (gcc version 3.1 20020325 (prerelease)) on linux
>
>I got a linking error because of using the class member function:
>AClass.class.getName()
>
>/tmp/cc3aa1t7.o: In function `main':
>/tmp/cc3aa1t7.o(.text+0x1d): undefined reference to `AClass::class$'
>collect2: ld returned 1 exit status
>
>What is wrong?
>

Given that the undefined reference is in "main", it seems like you 
specified an incorrect --main class, or forgot to link in AClass?

regards

Bryce.

Re: Problem with AClass.class

[Ryszard Kabatek]

Bryce McKinlay wrote:
> 
> Ryszard Kabatek wrote:
> 
> >gcj (gcc version 3.1 20020325 (prerelease)) on linux
> >
> >I got a linking error because of using the class member function:
> >AClass.class.getName()
> >
> >/tmp/cc3aa1t7.o: In function `main':
> >/tmp/cc3aa1t7.o(.text+0x1d): undefined reference to `AClass::class$'
> >collect2: ld returned 1 exit status
> >
> >What is wrong?
> >
> 
> Given that the undefined reference is in "main", it seems like you
> specified an incorrect --main class, or forgot to link in AClass?
> 
> regards
> 
> Bryce.

Hm, AClass is the --main class.
-- 
Ryszard Kabatek

Tel. (Softax) +48 (22) 517 38 31
Tel. kom. (Softax) +48 606 609 363

Re: Problem with AClass.class

[Tom Tromey]

>>>>> "Ryszard" == Ryszard Kabatek <Ryszard.Kabatek@softax.pl> writes:

>> >/tmp/cc3aa1t7.o: In function `main':
>> >/tmp/cc3aa1t7.o(.text+0x1d): undefined reference to `AClass::class$'
>> >collect2: ld returned 1 exit status

Bryce> Given that the undefined reference is in "main", it seems like
Bryce> you specified an incorrect --main class, or forgot to link in
Bryce> AClass?

Ryszard> Hm, AClass is the --main class.

Then we need more information.  How exactly did you compile your
program?  Is it short enough to post here?  What platform are you on?

Tom

Re: Problem with AClass.class

[Ryszard Kabatek]

Tom Tromey wrote:
> 
> >>>>> "Ryszard" == Ryszard Kabatek <Ryszard.Kabatek@softax.pl> writes:
> 
> >> >/tmp/cc3aa1t7.o: In function `main':
> >> >/tmp/cc3aa1t7.o(.text+0x1d): undefined reference to `AClass::class$'
> >> >collect2: ld returned 1 exit status
> 
> Bryce> Given that the undefined reference is in "main", it seems like
> Bryce> you specified an incorrect --main class, or forgot to link in
> Bryce> AClass?
> 
> Ryszard> Hm, AClass is the --main class.
> 
> Then we need more information.  How exactly did you compile your
> program?  Is it short enough to post here?  What platform are you on?
> 
> Tom

I compiled under linux (RH 7.1). The file AClass.java is one of the *.java.
The source is pretty large. I cannot post it.

gcj --main=AClass
--classpath=/home/rysio/programming/cvs/brelink_full/progs/gbp/actions /home/rysio/programming/cvs/brelink_full/progs/gbp/libs.jar 
-I /home/rysio/programming/cvs/brelink_full/progs/gbp/actions *.java

Regards
-- 
Ryszard Kabatek

Tel. (Softax) +48 (22) 517 38 31
Tel. kom. (Softax) +48 606 609 363

Re: Problem with AClass.class

[Bryce McKinlay]

Ryszard Kabatek wrote:

>gcj --main=AClass
>
Should it be gcj --main=some.package.AClass ?

regards

Bryce.

Re: Problem with AClass.class

[Ryszard Kabatek]

Bryce McKinlay wrote:
> 
> Ryszard Kabatek wrote:
> 
> >gcj --main=AClass
> >
> Should it be gcj --main=some.package.AClass ?
> 
> regards
> 
> Bryce.

If I try it (gcj --main=mypackage.AClass) I get:
/tmp/ccjmo6vc.o: In function `main':
/tmp/ccjmo6vc.o(.text+0x1d): undefined reference to `mypackage::AClass::class$'
collect2: ld returned 1 exit status

The reason are the calls of AClass.class.getName();

Regards
-- 
Ryszard Kabatek

Re: Problem with AClass.class

[Tom Tromey]

>>>>> "Ryszard" == Ryszard Kabatek <Ryszard.Kabatek@softax.pl> writes:

Bryce> Should it be gcj --main=some.package.AClass ?

Ryszard> If I try it (gcj --main=mypackage.AClass) I get:
Ryszard> /tmp/ccjmo6vc.o: In function `main':
Ryszard> /tmp/ccjmo6vc.o(.text+0x1d): undefined reference to `mypackage::AClass::class$'

Ryszard> The reason are the calls of AClass.class.getName();

I doubt it.  Nobody else has problems with this feature.
I assume you are compiling and linking in AClass?
And that the fully qualified class name is "mypackage.AClass"?

One thing you could do is run "nm AClass.o | c++filt" and then send
the output.  That might help us.

Tom