dwarf_seterrarg3

Usage

Library

library “libdwarf”

Overview

These functions may be used by applications to configure error handling callbacks. The error handling scheme used by the library is described in dwarf(3).

Function dwarf_seterrarg() may be used to set the callback argument passed to a configured error handler at the time it is invoked. Argument arg is the callback argument being set. Argument dbg can be a debug context allocated by a prior call to dwarf_init(3), or can be NULL to indicate that the library-wide callback argument is to be set.

Function dwarf_seterrhand() may be used to associate an error handler denoted by argument handler with the DWARF debug context descriptor denoted by argument dbg. Argument dbg should be a debug context allocated by a prior call to dwarf_init(3), or may be NULL to indicate that the library-wide error handler is to be set.

Return values

Function dwarf_seterrhand() returns the previous error handler associated with argument dbg. If argument dbg is NULL, function dwarf_seterrhand() returns the previous library-wide error handler.

Function dwarf_seterrarg() returns the previous callback argument associated with argument dbg. If argument dbg is NULL, function dwarf_seterrarg() returns the previous library-wide callback argument.

Compatibility

The behavior of these functions when argument dbg is NULL is a local extension.

Errors

These functions do not set an error code.