[Overview][Types][Procedures and functions][Variables][Index] | Reference for unit 'lnfodwrf' (#rtl)

# Reference for unit 'lnfodwrf'

Return address line information

`uses`
`System;` |  | The system unit

## Overview

The lnfodwrf provides a routine that reads the debug information of an executable (if any exists) and returns source code information about this address. It works with DWARF debug information. Note that this unit is not thread-safe, and that its behaviour is undefined if multiple threads try to write a backtrace at the same time.

For stabs debug information, the lineinfo unit must be used.