xref: /freebsd-src/contrib/elftoolchain/libdwarf/dwarf_seterror.c (revision 6cec9cad762b6476313fb1f8e931a1647822db6b)
1*2de3b87aSKai Wang /*-
2*2de3b87aSKai Wang  * Copyright (c) 2010 Joseph Koshy
3*2de3b87aSKai Wang  * All rights reserved.
4*2de3b87aSKai Wang  *
5*2de3b87aSKai Wang  * Redistribution and use in source and binary forms, with or without
6*2de3b87aSKai Wang  * modification, are permitted provided that the following conditions
7*2de3b87aSKai Wang  * are met:
8*2de3b87aSKai Wang  * 1. Redistributions of source code must retain the above copyright
9*2de3b87aSKai Wang  *    notice, this list of conditions and the following disclaimer.
10*2de3b87aSKai Wang  * 2. Redistributions in binary form must reproduce the above copyright
11*2de3b87aSKai Wang  *    notice, this list of conditions and the following disclaimer in the
12*2de3b87aSKai Wang  *    documentation and/or other materials provided with the distribution.
13*2de3b87aSKai Wang  *
14*2de3b87aSKai Wang  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*2de3b87aSKai Wang  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*2de3b87aSKai Wang  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*2de3b87aSKai Wang  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*2de3b87aSKai Wang  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*2de3b87aSKai Wang  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*2de3b87aSKai Wang  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*2de3b87aSKai Wang  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*2de3b87aSKai Wang  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*2de3b87aSKai Wang  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*2de3b87aSKai Wang  * SUCH DAMAGE.
25*2de3b87aSKai Wang  */
26*2de3b87aSKai Wang 
27*2de3b87aSKai Wang #include "_libdwarf.h"
28*2de3b87aSKai Wang 
29*2de3b87aSKai Wang ELFTC_VCSID("$Id: dwarf_seterror.c 2075 2011-10-27 03:47:28Z jkoshy $");
30*2de3b87aSKai Wang 
31*2de3b87aSKai Wang #define	_SET_FIELD(R, F, V)					\
32*2de3b87aSKai Wang 	do {							\
33*2de3b87aSKai Wang 		(R) = (F);					\
34*2de3b87aSKai Wang 		(F) = (V);					\
35*2de3b87aSKai Wang 	} while (0)
36*2de3b87aSKai Wang 
37*2de3b87aSKai Wang #define	SET_FIELD(D, R, F)					\
38*2de3b87aSKai Wang 	do {							\
39*2de3b87aSKai Wang 		if (D)						\
40*2de3b87aSKai Wang 			_SET_FIELD(R, (D)->dbg_##F, F);		\
41*2de3b87aSKai Wang 		else						\
42*2de3b87aSKai Wang 			_SET_FIELD(R, _libdwarf.F, F);		\
43*2de3b87aSKai Wang 	} while (0)
44*2de3b87aSKai Wang 
45*2de3b87aSKai Wang Dwarf_Handler
dwarf_seterrhand(Dwarf_Debug dbg,Dwarf_Handler errhand)46*2de3b87aSKai Wang dwarf_seterrhand(Dwarf_Debug dbg, Dwarf_Handler errhand)
47*2de3b87aSKai Wang {
48*2de3b87aSKai Wang 	Dwarf_Handler oldhandler;
49*2de3b87aSKai Wang 
50*2de3b87aSKai Wang 	SET_FIELD(dbg, oldhandler, errhand);
51*2de3b87aSKai Wang 
52*2de3b87aSKai Wang 	return (oldhandler);
53*2de3b87aSKai Wang }
54*2de3b87aSKai Wang 
55*2de3b87aSKai Wang Dwarf_Ptr
dwarf_seterrarg(Dwarf_Debug dbg,Dwarf_Ptr errarg)56*2de3b87aSKai Wang dwarf_seterrarg(Dwarf_Debug dbg, Dwarf_Ptr errarg)
57*2de3b87aSKai Wang {
58*2de3b87aSKai Wang 	Dwarf_Ptr oldarg;
59*2de3b87aSKai Wang 
60*2de3b87aSKai Wang 	SET_FIELD(dbg, oldarg, errarg);
61*2de3b87aSKai Wang 
62*2de3b87aSKai Wang 	return (oldarg);
63*2de3b87aSKai Wang }
64