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 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 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