Home | History | Annotate | Line # | Download | only in libdwarf 
      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 $");
     32 ELFTC_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 
     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