1/*	$NetBSD: dwarf_seterror.c,v 1.5 2024/03/03 17:37:32 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2010 Joseph Koshy
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include "_libdwarf.h"
30
31__RCSID("$NetBSD: dwarf_seterror.c,v 1.5 2024/03/03 17:37:32 christos Exp $");
32ELFTC_VCSID("Id: dwarf_seterror.c 3902 2020-11-24 21:17:41Z jkoshy");
33
34#define	_SET_FIELD(R, F, V)					\
35	do {							\
36		(R) = (F);					\
37		(F) = (V);					\
38	} while (/* CONSTCOND */ 0)
39
40#define	SET_FIELD(D, R, F)					\
41	do {							\
42		if (D)						\
43			_SET_FIELD(R, (D)->dbg_##F, F);		\
44		else						\
45			_SET_FIELD(R, _libdwarf.F, F);		\
46	} while (/* CONSTCOND */ 0)
47
48Dwarf_Handler
49dwarf_seterrhand(Dwarf_Debug dbg, Dwarf_Handler errhand)
50{
51	Dwarf_Handler oldhandler;
52
53	SET_FIELD(dbg, oldhandler, errhand);
54
55	return (oldhandler);
56}
57
58Dwarf_Ptr
59dwarf_seterrarg(Dwarf_Debug dbg, Dwarf_Ptr errarg)
60{
61	Dwarf_Ptr oldarg;
62
63	SET_FIELD(dbg, oldarg, errarg);
64
65	return (oldarg);
66}
67