624     char *cp = buffer;  in _Block_dump()  local
626         sprintf(cp, "NULL passed to _Block_dump\n");  in _Block_dump()
633     cp += sprintf(cp, "^%p (new layout) =\n", (void *)closure);  in _Block_dump()
635         cp += sprintf(cp, "isa: NULL\n");  in _Block_dump()
638         cp += sprintf(cp, "isa: stack Block\n");  in _Block_dump()
641         cp += sprintf(cp, "isa: malloc heap Block\n");  in _Block_dump()
644         cp += sprintf(cp, "isa: GC heap Block\n");  in _Block_dump()
647         cp += sprintf(cp, "isa: global Block\n");  in _Block_dump()
650         cp += sprintf(cp, "isa: finalizing Block\n");  in _Block_dump()
653         cp += sprintf(cp, "isa?: %p\n", (void *)closure->isa);  in _Block_dump()
655     cp += sprintf(cp, "flags:");  in _Block_dump()
657         cp += sprintf(cp, " HASDESCRIPTOR");  in _Block_dump()
660         cp += sprintf(cp, " FREEME");  in _Block_dump()
663         cp += sprintf(cp, " ISGC");  in _Block_dump()
666         cp += sprintf(cp, " HASHELP");  in _Block_dump()
669         cp += sprintf(cp, " HASCTOR");  in _Block_dump()
671     cp += sprintf(cp, "\nrefcount: %u\n", closure->flags & BLOCK_REFCOUNT_MASK);  in _Block_dump()
672     cp += sprintf(cp, "invoke: %p\n", (void *)(uintptr_t)closure->invoke);  in _Block_dump()
675         cp += sprintf(cp, "descriptor: %p\n", (void *)dp);  in _Block_dump()
676         cp += sprintf(cp, "descriptor->reserved: %lu\n", dp->reserved);  in _Block_dump()
677         cp += sprintf(cp, "descriptor->size: %lu\n", dp->size);  in _Block_dump()
680             cp += sprintf(cp, "descriptor->copy helper: %p\n", (void *)(uintptr_t)dp->copy);  in _Block_dump()
681             cp += sprintf(cp, "descriptor->dispose helper: %p\n", (void *)(uintptr_t)dp->dispose);  in _Block_dump()
690     char *cp = buffer;  in _Block_byref_dump()  local
691     cp += sprintf(cp, "byref data block %p contents:\n", (void *)src);  in _Block_byref_dump()
692     cp += sprintf(cp, "  forwarding: %p\n", (void *)src->forwarding);  in _Block_byref_dump()
693     cp += sprintf(cp, "  flags: 0x%x\n", src->flags);  in _Block_byref_dump()
694     cp += sprintf(cp, "  size: %d\n", src->size);  in _Block_byref_dump()
696         cp += sprintf(cp, "  copy helper: %p\n", (void *)(uintptr_t)src->byref_keep);  in _Block_byref_dump()
697         cp += sprintf(cp, "  dispose helper: %p\n", (void *)(uintptr_t)src->byref_destroy);  in _Block_byref_dump()