Re: app throws "illegal instruction"

[Frank Rehberger]

On Wed, 2002-05-15 at 12:03, Daniel Diaz wrote:
> Hi Frank, it is not obvious to see what's wrong. The first think you can
> do is recompile gprolog on your own machine (maybe it is a problem with
> an incompatible library).
> So get the last .tar.gz (1.2.12 is OK).
> 
> ftp://ftp.inria.fr/INRIA/Projects/contraintes/gprolog/unstable/gprolog-1.2.12.tar.gz
> 
> To test without installing the system:
> 
> uncompress the package,
> cd gprolog-1.2.12/src
> source SETVARS (under bash or else use the file CSHSETVARS)
> ./configure
> make
did not try this
 

> The file SETVARS sets the PATH in such a way when you execute gplc or
> gprolog it is the one in this directory which is chosen (so even if you
> have a RPM installed it is not the RPM which is executed).
> 
> then cd to your application directory and recompile your program (use
> gplc -v to check 1.2.12 is the version of gplc if you are not sure).
> 
> If the problem persists, recompile gprolog with debug options:
> 
> cd gprolog-1.2.12/src
> ./configure --with-c-flags=debug
> make clean
> make
this solved my problem :)

everything works fine now. 
Even delegation of printing "hello world" to gnu-prolog engine works
fine :) 

In addition, even using selfmade compilation  of gnu-prolog-1.2.8  works
fine :?   The problem was the pre-compiled version 1.2.8 (no idea why)

Thank you for your help, 

Kind regards, Frank

> and retry your app (you should compile it with -g to be able to use
> gdb).
> Then use gdb to see what happens.
> 
> Sorry I cannot help you much more
> 
> 
> Frank Rehberger wrote:
> > 
> > Hello,
> > 
> > I am using Redhat-7.1, compilation is done against glib-2.0 and
> > ORbit-2.0. I amusing the pre-compiled version of gnu-prolog-1.2.8.
> > 
> > For Gnome-MrProject I write the project-scheduler using Gnu-Prolog.
> > The instance of Gnu-Prolog shall be accessible using CORBA interfaces,
> > running as Servant.
> > 
> > First I wrote a small hello world CORBA servant working fine. One can
> > attach to this object, applying a remote function that prints "hello
> > world" to terminal. The next step was to delegate terminal printing to
> > gnu-prolog linking gnu-prolog against this CORBA interface. The specific
> > prolog rule is only:
> > 
> > echo(Mesg):-
> >     print(Mesg).
> > 
> > I use gplc to link gnu-prolog libraries against CORBA interfaces.
> > 
> > Everytime I execute this application  "Illegal instruction" signal is
> > thrown. Stepping with debugger through code I reach line 59 where the
> > error occures. The lines before activate sockets and might set some
> > signal handlers.
> > 
> > I have got no idea why this error turns up.  Currently _no_ Gnu-Prolog
> > function is called. I assume gprolog has been compiled against glib-1.x.
> > Might this error be caused by using glib-1 and glib-2 object files in
> > same application?
> > 
> > Breakpoint 2, impl_MrProject_Sked__create (poa=0x8295648, ev=0x8290d30)
> > at mrp-sked-skelimpl.c:59
> > (gdb) step
> > 
> > Program received signal SIGILL, Illegal instruction.
> > 0xbffff49a in ?? ()
> > 
> > -------<Suggestions or hints are welcome.>--------
> > 
> >    43 static MrProject_Sked
> >    44 impl_MrProject_Sked__create(PortableServer_POA poa,
> > CORBA_Environment * ev)
> >    45 {
> >    46    MrProject_Sked retval;
> >    47    impl_POA_MrProject_Sked *newservant;
> >    48    PortableServer_ObjectId *objid;
> >    49
> >    50    newservant = g_new0(impl_POA_MrProject_Sked, 1);
> >    51    newservant->servant.vepv = &impl_MrProject_Sked_vepv;
> >    52    newservant->poa = poa;
> >    53    POA_MrProject_Sked__init((PortableServer_Servant) newservant,
> > ev);
> >    54    objid = PortableServer_POA_activate_object(poa, newservant,
> > ev);
> >    55    CORBA_free(objid);
> >    56    retval = PortableServer_POA_servant_to_reference(poa,
> > newservant, ev);
> >    57
> >    58    return retval;
> >    59 }
> > 
> > Thanks, Frank
> > 
> > --
> > -------------------------------------------------
> >  Frank.Rehberger at acm.org
> > -------------------------------------------------
> >  The Twelve Networking Truths
> >  http://www.ietf.org/rfc/rfc1925.txt?number=1925
> > -------------------------------------------------
> > 
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-- 
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 Frank.Rehberger at acm.org
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 The Twelve Networking Truths 
 http://www.ietf.org/rfc/rfc1925.txt?number=1925
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