dwarf_ranges.c revision 1.2.4.2 1 1.2.4.2 yamt /* $NetBSD: dwarf_ranges.c,v 1.2.4.2 2014/05/22 15:44:46 yamt Exp $ */
2 1.2.4.2 yamt
3 1.2.4.2 yamt /*-
4 1.2.4.2 yamt * Copyright (c) 2009,2011 Kai Wang
5 1.2.4.2 yamt * All rights reserved.
6 1.2.4.2 yamt *
7 1.2.4.2 yamt * Redistribution and use in source and binary forms, with or without
8 1.2.4.2 yamt * modification, are permitted provided that the following conditions
9 1.2.4.2 yamt * are met:
10 1.2.4.2 yamt * 1. Redistributions of source code must retain the above copyright
11 1.2.4.2 yamt * notice, this list of conditions and the following disclaimer.
12 1.2.4.2 yamt * 2. Redistributions in binary form must reproduce the above copyright
13 1.2.4.2 yamt * notice, this list of conditions and the following disclaimer in the
14 1.2.4.2 yamt * documentation and/or other materials provided with the distribution.
15 1.2.4.2 yamt *
16 1.2.4.2 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 1.2.4.2 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 1.2.4.2 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 1.2.4.2 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 1.2.4.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 1.2.4.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 1.2.4.2 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 1.2.4.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 1.2.4.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 1.2.4.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 1.2.4.2 yamt * SUCH DAMAGE.
27 1.2.4.2 yamt */
28 1.2.4.2 yamt
29 1.2.4.2 yamt #include "_libdwarf.h"
30 1.2.4.2 yamt
31 1.2.4.2 yamt __RCSID("$NetBSD: dwarf_ranges.c,v 1.2.4.2 2014/05/22 15:44:46 yamt Exp $");
32 1.2.4.2 yamt ELFTC_VCSID("Id: dwarf_ranges.c 2075 2011-10-27 03:47:28Z jkoshy ");
33 1.2.4.2 yamt
34 1.2.4.2 yamt static int
35 1.2.4.2 yamt _dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_CU cu, Dwarf_Off off,
36 1.2.4.2 yamt Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt,
37 1.2.4.2 yamt Dwarf_Error *error)
38 1.2.4.2 yamt {
39 1.2.4.2 yamt Dwarf_Rangelist rl;
40 1.2.4.2 yamt int ret;
41 1.2.4.2 yamt
42 1.2.4.2 yamt assert(cu != NULL);
43 1.2.4.2 yamt if (_dwarf_ranges_find(dbg, off, &rl) == DW_DLE_NO_ENTRY) {
44 1.2.4.2 yamt ret = _dwarf_ranges_add(dbg, cu, off, &rl, error);
45 1.2.4.2 yamt if (ret != DW_DLE_NONE)
46 1.2.4.2 yamt return (DW_DLV_ERROR);
47 1.2.4.2 yamt }
48 1.2.4.2 yamt
49 1.2.4.2 yamt *ranges = rl->rl_rgarray;
50 1.2.4.2 yamt *ret_cnt = rl->rl_rglen;
51 1.2.4.2 yamt
52 1.2.4.2 yamt if (ret_byte_cnt != NULL)
53 1.2.4.2 yamt *ret_byte_cnt = cu->cu_pointer_size * rl->rl_rglen * 2;
54 1.2.4.2 yamt
55 1.2.4.2 yamt return (DW_DLV_OK);
56 1.2.4.2 yamt }
57 1.2.4.2 yamt
58 1.2.4.2 yamt int
59 1.2.4.2 yamt dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Ranges **ranges,
60 1.2.4.2 yamt Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt, Dwarf_Error *error)
61 1.2.4.2 yamt {
62 1.2.4.2 yamt
63 1.2.4.2 yamt if (dbg == NULL || ranges == NULL || ret_cnt == NULL) {
64 1.2.4.2 yamt DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
65 1.2.4.2 yamt return (DW_DLV_ERROR);
66 1.2.4.2 yamt }
67 1.2.4.2 yamt
68 1.2.4.2 yamt if (!dbg->dbg_info_loaded) {
69 1.2.4.2 yamt if (_dwarf_info_load(dbg, 1, error) != DW_DLE_NONE)
70 1.2.4.2 yamt return (DW_DLV_ERROR);
71 1.2.4.2 yamt }
72 1.2.4.2 yamt
73 1.2.4.2 yamt return (_dwarf_get_ranges(dbg, STAILQ_FIRST(&dbg->dbg_cu), offset,
74 1.2.4.2 yamt ranges, ret_cnt, ret_byte_cnt, error));
75 1.2.4.2 yamt }
76 1.2.4.2 yamt
77 1.2.4.2 yamt int
78 1.2.4.2 yamt dwarf_get_ranges_a(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Die die,
79 1.2.4.2 yamt Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt,
80 1.2.4.2 yamt Dwarf_Error *error)
81 1.2.4.2 yamt {
82 1.2.4.2 yamt
83 1.2.4.2 yamt if (dbg == NULL || die == NULL || ranges == NULL || ret_cnt == NULL) {
84 1.2.4.2 yamt DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
85 1.2.4.2 yamt return (DW_DLV_ERROR);
86 1.2.4.2 yamt }
87 1.2.4.2 yamt
88 1.2.4.2 yamt return (_dwarf_get_ranges(dbg, die->die_cu, offset, ranges, ret_cnt,
89 1.2.4.2 yamt ret_byte_cnt, error));
90 1.2.4.2 yamt }
91