alignment test case

Wed Mar 19 14:45:00 GMT 2003

Jeff Sturm writes:
 > On 2003年3月19日, Andrew Haley wrote:
 > > > I can't see any way to fix this without fixing the C++ problem. Well,
 > > > we could rewrite gcj to use the new ABI, but that's a long way down
 > > > the road.
 > >
 > > Actually there might be another way: use __attribute__((aligned)) on
 > > java.lang.Object. Then a subclass can never be more aligned than its
 > > superclass. Wastes memory, though.
 > 
 > I thought that with hash synchronization, boehm-gc always allocates on an
 > 8-byte boundary anyway? Would aligning Object really waste memory?
A little, because every subclass would also be 8-aligned.
But I don't know that would fix the bug anyway. I need to understand
what the C++ compiler is doing.
Andrew.