On 06-Jul-00 at 03:58, Alexander Mai ([EMAIL PROTECTED]) wrote:
> On Wed, Jul 05, 2000 at 05:06:02PM -0400, Rick Scott wrote:
> > But it's not exactly a resource offset once compiled, right?? After all,
> > we are looking for a (int)Cardinal < 0, which means a Cardinal >
> > 2147483647 (assuming 4 byte int's and Cardinal's).
>
> Yup, the MAXINT issue is also interesting here ...
> This might also look like a portability problem (-> alpha systems):
> Cardinal is 'unsigned int' in X11, i.e. if it's going to
> be used for size_t one had to face serious trouble.
Looking at how we uncompile the resources, it looks like we set the offset to
-offset, with the appropriate casts. After looking at this for a while I'm not
too sure why we don't use XtGetResourceList, anyone???
>
> But did omitting this check, i.e. take the else{} part fix test7 for you??
It stopped the core dump, but the resources you end up with are not correct.
>
> >I suspect we have some sort of _very_ serious corruption going on. Try
> >this...
>
> Interesting point.
> Given the stability of LT in general we either rarely run across this
> or just by chance it doesn't hurt often?! ;-)
>
> >gdb ./test7
> >break main
> >run
> >break BaseClass.c:_XmTransformSubResources
> >cont
> >where
> >
> >You end up at _XmGetClassExtensionPtr () at BaseClass.c:1903!!!!!!!
> >
> >What gives?????
>
> Hmm, are you sure you have disabled optimization for compiling the lib?
> Actually that's an issue I always have to fight with: I have two
> 'scripts' to run configure for my Production and Debug trees but
> for some strange reasons I often have -O!=0 used in my Debug/ :-(
It's the same as it's always been, looks like -g -O2. I don't touch this, never
have, and I have seen more than my far share of this library from inside a
debugger, and never noticed anything like this before.
Anyway, it looks like the xmVendorShellExtClassRec.object_class.resources are
either not compiling correct, getting wacked after compilation, or something is
changing it's value in the class record. Don't know what, don't know where, but
it looks to me like a problem.....
>
> --
> Alexander Mai
> [EMAIL PROTECTED]
>
>
