New C++ ABI: patches.

Fri Jan 12 13:52:00 GMT 2001

Alexandre Petit-Bianco writes:
> For some reasons, the first word of _Jv_intClass points in the
> middle of the vtbl instead pointing at its beginning.

I can see that the vtbl is ajusted before being stored:
 * movl _ZTVN4java4lang5ClassE@GOT(%ebx), %eax
 movl 0,ドル 8(%edi)
 movl 56(%esi), %ecx
 movl 0,ドル 20(%edi)
 * addl 8,ドル %eax
 cmpw 86,ドル %dx
 * movl %eax, (%edi)
$edi contains `this.' I'm trying to understand why this code gets
generated. Note that if I introduce this in the copy constructor:
 void *p = ((void **)this)[0];
 ((void **)this)[0] = (void *)((char *)p-2*sizeof (void *));
I can get `int.class' to work properly.
I did a build on Alpha: `Hellow World' crashes, but I'm having a hard
to time debuging it because of the shared libraries. When built with
`-static' `Hello World' just misbehaves but doesn't crash :-(
Did anyone get a chance to try on other platforms?
./A