+ps3)
+    platformo="$object/head.o $object/ps3-hvcall.o $object/ps3.o"
+    ;;

Having those vectors makes a 4MB dead gap in the binary image.  The 
ps3's
loader supports a gziped image so there is no problem, but for the 
general
case of binary images, there is no way we can have those always in 
there.

If this is an ELF file, you can put the exception vectors in a
separate segment.  Or if you don't need the entry point to
be in the low region, (and you don't need that unless your
boot loader ignores the entry point in the ELF header), you can
copy the vectors in at startup and have no code linked at 0 at
all.


Segher