libkern/kxld/kxld_kext.c

143     KXLDVTable *vtable = NULL;
149         vtable = kxld_array_get_item(&kext->vtables, i);
150         kxld_vtable_clear(vtable);
167     KXLDVTable *vtable = NULL;
173         vtable = kxld_array_get_slot(&kext->vtables, i);
174         kxld_vtable_deinit(vtable);
334     KXLDVTable *vtable = NULL;
346         vtable = kxld_array_get_item(&kext->vtables, i);
348         rval = kxld_dict_insert(vtables, vtable->name, vtable);
410     /* Kexts that are being relocated need symbols indexed by value for vtable
414      * symbols by value before we relocate the symbols because the vtable
448 * will look for vtable symbols in the defined_symbols dictionary.  Otherwise,
449 * it will look in the kext's symbol table for vtable symbols.
454 * for symbol resolution, so we can look there for vtable symbols without
470     KXLDVTable *vtable = NULL;
483         /* Create a vtable object for every vtable symbol */
490          * class vtable and a MetaClass vtable.
511         vtable = kxld_array_get_item(&kext->vtables, i++);
512         rval = kxld_vtable_init(vtable, vtable_sym, kext->kext,
517          * patching and can't find the metaclass vtable. If that's the
573     /* Get the vtable name from the class name */
578     /* Get the vtable symbol */
589     /* Get the meta vtable name from the class name */
594     /* Get the meta vtable symbol */
716              * 2) Actual kexts delay the error until validation in case vtable
777 *   3) Derive the name of the class's vtable from the name of the class
782 *   7) Derive the super class's vtable from the super class's name
804     KXLDVTable *vtable = NULL;
846             /* Get the vtable name from the class name */
851             /* Get the vtable and make sure it hasn't been patched */
852             vtable = kxld_dict_find(&kext->vtable_index, vtable_name);
853             require_action(vtable, finish, rval=KERN_FAILURE;
857             if (!vtable->is_patched) {
869                 /* Get the super vtable name from the class name */
874                 /* Get the super vtable if it's been patched */
882                     /* If the parent's vtable hasn't been patched, warn that
883                      * this vtable is unpatchable because of the parent.
900                 /* Get the final symbol's name from the super vtable */
923                 /* Patch the class's vtable */
924                 rval = kxld_vtable_patch(vtable, super_vtable, kext->kext);
927                 /* Add the class's vtable to the set of patched vtables */
928                 rval = kxld_dict_insert(patched_vtables, vtable->name, vtable);
931                 /* Get the meta vtable name from the class name */
936                 /* Get the meta vtable.  Whether or not it should exist has already
940                 vtable = kxld_dict_find(&kext->vtable_index, vtable_name);
941                 if (!vtable) {
946                 require_action(!vtable->is_patched, finish, rval=KERN_FAILURE);
948                 /* There is no way to look up a metaclass vtable at runtime, but
950                  * OSMetaClass, so we just hardcode that vtable name here.
957                 /* Get the super meta vtable */
962                 /* Patch the meta class's vtable */
963                 rval = kxld_vtable_patch(vtable, super_vtable, kext->kext);
966                 /* Add the MetaClass's vtable to the set of patched vtables */
967                 rval = kxld_dict_insert(patched_vtables, vtable->name, vtable);
994     KXLDVTable *vtable = NULL;
1002     /* Map vtable names to the vtable structures */
1008         vtable = kxld_array_get_item(&kext->vtables, i);
1009         rval = kxld_dict_insert(&kext->vtable_index, vtable->name, vtable);