dwarf_pro_arange.c revision 261246 
1/*-
2 * Copyright (c) 2010 Kai Wang
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include "_libdwarf.h"
28
29ELFTC_VCSID("$Id: dwarf_pro_arange.c 2074 2011-10-27 03:34:33Z jkoshy $");
30
31Dwarf_Unsigned
32dwarf_add_arange(Dwarf_P_Debug dbg, Dwarf_Addr start, Dwarf_Unsigned length,
33    Dwarf_Signed symbol_index, Dwarf_Error *error)
34{
35
36	return (dwarf_add_arange_b(dbg, start, length, symbol_index, 0, 0,
37	    error));
38}
39
40Dwarf_Unsigned
41dwarf_add_arange_b(Dwarf_P_Debug dbg, Dwarf_Addr start, Dwarf_Unsigned length,
42    Dwarf_Unsigned symbol_index, Dwarf_Unsigned end_symbol_index,
43    Dwarf_Addr offset_from_end_symbol, Dwarf_Error *error)
44{
45	Dwarf_ArangeSet as;
46	Dwarf_Arange ar;
47
48	if (dbg == NULL) {
49		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
50		return (0);
51	}
52	as = dbg->dbgp_as;
53
54	if (end_symbol_index > 0 &&
55	    (dbg->dbgp_flags & DW_DLC_SYMBOLIC_RELOCATIONS) == 0) {
56		DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
57		return (0);
58	}
59
60	if ((ar = calloc(1, sizeof(struct _Dwarf_Arange))) == NULL) {
61		DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
62		return (0);
63	}
64	ar->ar_as = as;
65	ar->ar_address = start;
66	ar->ar_range = length;
67	ar->ar_symndx = symbol_index;
68	ar->ar_esymndx = end_symbol_index;
69	ar->ar_eoff = offset_from_end_symbol;
70	STAILQ_INSERT_TAIL(&as->as_arlist, ar, ar_next);
71
72	return (1);
73}
74