---
title: backtrace_packed
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 12.3+]
path: kernel/3917660-backtrace_packed
---

# backtrace_packed

## Declaration

```occ
size_t backtrace_packed(backtrace_pack_t packing, uint8_t *bt, size_t btsize, struct backtrace_control *ctl, backtrace_info_t *info_out);
```