1 /* $NetBSD: dwarf_seterror.c,v 1.2 2014/03/09 16:58:04 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 1.2 2014/03/09 16:58:04 christos Exp $");
32 ELFTC_VCSID("Id: dwarf_seterror.c 2075 2011-10-27 03:47:28Z jkoshy ");
33
34 #define _SET_FIELD(R, F, V) \
35 do { \
36 (R) = (F); \
37 (F) = (V); \
38 } while (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 (0)
47
48 Dwarf_Handler
dwarf_seterrhand(Dwarf_Debug dbg,Dwarf_Handler errhand)49 dwarf_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
58 Dwarf_Ptr
dwarf_seterrarg(Dwarf_Debug dbg,Dwarf_Ptr errarg)59 dwarf_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