---
title: r_extern
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 10.8+]
path: kernel/relocation_info/1577784-r_extern
---

# r_extern

Indicates whether the r_symbolnum field is an index into the symbol table (1) or a section number (0).

## Declaration

```occ
uint32_t r_extern:1;
```