sablevm-developer

[Sablevm-developer] linking with java-lang

[Ian R. <ir...@cs...>]

Hi,

Has anyone resolved the following linking problems I'm having with
java-lang:

/home/ian/lib/sablepath-libs/libjava-lang.so: undefined reference to
`_Jv_strtod_r'
/home/ian/lib/sablepath-libs/libjava-lang.so: undefined reference to
`_Jv_dtoa'

I think I'm up to date with everything and I've tried the
java_lang_Double.c and mprec.[ch] sources from classpath.

Thanks,

Ian Rogers

Re: [Sablevm-developer] linking with java-lang

[Etienne M. G. <eti...@uq...>]

Hi Ian,

I am guilty of not trying to link the different libraries.

You should try moving src/unused/jni/dtoa.c to src/java-lang/dtoa.c,
then adding dtoa.c in Makefile.am.

Let me know if this helps, so that I go and fix the classpath
extraction scripts.

If you have similar problems, you can always look in the
src/unused directory for missing struff.  Another possibility
is missing "-l" compilation directives (to link with system
libraries) in Makefile.am.

Thanks,

Etienne

On Sat, Sep 15, 2001 at 11:10:39PM +0000, Ian Rogers wrote:
> Hi,
> 
> Has anyone resolved the following linking problems I'm having with
> java-lang:
> 
> /home/ian/lib/sablepath-libs/libjava-lang.so: undefined reference to
> `_Jv_strtod_r'
> /home/ian/lib/sablepath-libs/libjava-lang.so: undefined reference to
> `_Jv_dtoa'
> 
> I think I'm up to date with everything and I've tried the
> java_lang_Double.c and mprec.[ch] sources from classpath.
> 
> Thanks,
> 
> Ian Rogers
> 
> _______________________________________________
> Sablevm-developer mailing list
> Sab...@li...
> https://lists.sourceforge.net/lists/listinfo/sablevm-developer

-- 
Etienne M. Gagnon                    http://www.info.uqam.ca/~egagnon/
SableVM:                                       http://www.sablevm.org/
SableCC:                                       http://www.sablecc.org/

Re: [Sablevm-developer] linking with java-lang

[Ian R. <ir...@cs...>]

Hi Etienne,

Thanks for the pointer. dtoa.c fixed the _Jv_dtoa issue. To fix the
_Jv_strtod_r I had to define KISSME_LINUX_USER for the file
src/java-lang/java_lang_Double.c (well I altered it to a #if 1).
Shouldn't this be picked up by the configure script? Thanks again,

Ian

Re: [Sablevm-developer] linking with java-lang

[John L. <je...@pi...>]

> Hi Etienne,
> 
> Thanks for the pointer. dtoa.c fixed the _Jv_dtoa issue. To fix the
> _Jv_strtod_r I had to define KISSME_LINUX_USER for the file
> src/java-lang/java_lang_Double.c (well I altered it to a #if 1).
> Shouldn't this be picked up by the configure script? Thanks again,

Hmm, I think that's there because gcj was using it's own reentrant method.

It should be named something else.

John Leuner

Re: [Sablevm-developer] linking with java-lang

[Etienne M. G. <eti...@uq...>]

I think I forgot to add a few things in configure.ac (I will copy them over
from sablevm's), e.g.

AC_DEFINE(_REENTRANT,1,link with reentrant library functions)

This define is critical to good operation in a multithreaded
environment.  Well designed libraries relieve "programmers"
from the burden of calling the "right" function when this
is defined...

I will also add my usual gcc set of compile options.

Etienne

On Mon, Sep 17, 2001 at 05:49:41PM +0100, John Leuner wrote:
> > Hi Etienne,
> > 
> > Thanks for the pointer. dtoa.c fixed the _Jv_dtoa issue. To fix the
> > _Jv_strtod_r I had to define KISSME_LINUX_USER for the file
> > src/java-lang/java_lang_Double.c (well I altered it to a #if 1).
> > Shouldn't this be picked up by the configure script? Thanks again,
> 
> Hmm, I think that's there because gcj was using it's own reentrant method.
> 
> It should be named something else.
> 
> John Leuner
> 

-- 
Etienne M. Gagnon                    http://www.info.uqam.ca/~egagnon/
SableVM:                                       http://www.sablevm.org/
SableCC:                                       http://www.sablecc.org/