Patched the rebase bug

In Object::rebase(Offset off)

if offset is equal to imageBase the method returns,
but as it happens, offset is usually 0 and imageBase is non
zero  , so the subesequent substraction results in an integer
overflow causing all sorts of trouble.

Smallest patch ever.

Dyninst-8.2.1/symtabAPI/src/Object-nt.C

@@ -2429,7 +2429,7 @@ void Object::applyRelocs(Region* relocs, Offset delta)
 }
 void Object::rebase(Offset off)
 {
-	if(off == imageBase) return;
+	if(off <= imageBase) return;
 	Region* relocs = findRegionByName(".reloc");
 	if(!relocs) {
 		fprintf(stderr, "rebase found no .reloc section, bailing\n");
@@ -2438,4 +2438,4 @@ void Object::rebase(Offset off)
 	Offset delta = off - imageBase;
 	applyRelocs(relocs, delta);
 	imageBase = off;
-}
+}