dwarf_ranges.c revision 1.2.8.2 1 1.2.8.2 tls /* $NetBSD: dwarf_ranges.c,v 1.2.8.2 2014/08/19 23:46:44 tls Exp $ */
2 1.2.8.2 tls
3 1.2.8.2 tls /*-
4 1.2.8.2 tls * Copyright (c) 2009,2011 Kai Wang
5 1.2.8.2 tls * All rights reserved.
6 1.2.8.2 tls *
7 1.2.8.2 tls * Redistribution and use in source and binary forms, with or without
8 1.2.8.2 tls * modification, are permitted provided that the following conditions
9 1.2.8.2 tls * are met:
10 1.2.8.2 tls * 1. Redistributions of source code must retain the above copyright
11 1.2.8.2 tls * notice, this list of conditions and the following disclaimer.
12 1.2.8.2 tls * 2. Redistributions in binary form must reproduce the above copyright
13 1.2.8.2 tls * notice, this list of conditions and the following disclaimer in the
14 1.2.8.2 tls * documentation and/or other materials provided with the distribution.
15 1.2.8.2 tls *
16 1.2.8.2 tls * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 1.2.8.2 tls * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 1.2.8.2 tls * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 1.2.8.2 tls * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 1.2.8.2 tls * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 1.2.8.2 tls * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 1.2.8.2 tls * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 1.2.8.2 tls * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 1.2.8.2 tls * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 1.2.8.2 tls * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 1.2.8.2 tls * SUCH DAMAGE.
27 1.2.8.2 tls */
28 1.2.8.2 tls
29 1.2.8.2 tls #include "_libdwarf.h"
30 1.2.8.2 tls
31 1.2.8.2 tls __RCSID("$NetBSD: dwarf_ranges.c,v 1.2.8.2 2014/08/19 23:46:44 tls Exp $");
32 1.2.8.2 tls ELFTC_VCSID("Id: dwarf_ranges.c 2075 2011-10-27 03:47:28Z jkoshy ");
33 1.2.8.2 tls
34 1.2.8.2 tls static int
35 1.2.8.2 tls _dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_CU cu, Dwarf_Off off,
36 1.2.8.2 tls Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt,
37 1.2.8.2 tls Dwarf_Error *error)
38 1.2.8.2 tls {
39 1.2.8.2 tls Dwarf_Rangelist rl;
40 1.2.8.2 tls int ret;
41 1.2.8.2 tls
42 1.2.8.2 tls assert(cu != NULL);
43 1.2.8.2 tls if (_dwarf_ranges_find(dbg, off, &rl) == DW_DLE_NO_ENTRY) {
44 1.2.8.2 tls ret = _dwarf_ranges_add(dbg, cu, off, &rl, error);
45 1.2.8.2 tls if (ret != DW_DLE_NONE)
46 1.2.8.2 tls return (DW_DLV_ERROR);
47 1.2.8.2 tls }
48 1.2.8.2 tls
49 1.2.8.2 tls *ranges = rl->rl_rgarray;
50 1.2.8.2 tls *ret_cnt = rl->rl_rglen;
51 1.2.8.2 tls
52 1.2.8.2 tls if (ret_byte_cnt != NULL)
53 1.2.8.2 tls *ret_byte_cnt = cu->cu_pointer_size * rl->rl_rglen * 2;
54 1.2.8.2 tls
55 1.2.8.2 tls return (DW_DLV_OK);
56 1.2.8.2 tls }
57 1.2.8.2 tls
58 1.2.8.2 tls int
59 1.2.8.2 tls dwarf_get_ranges(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Ranges **ranges,
60 1.2.8.2 tls Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt, Dwarf_Error *error)
61 1.2.8.2 tls {
62 1.2.8.2 tls
63 1.2.8.2 tls if (dbg == NULL || ranges == NULL || ret_cnt == NULL) {
64 1.2.8.2 tls DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
65 1.2.8.2 tls return (DW_DLV_ERROR);
66 1.2.8.2 tls }
67 1.2.8.2 tls
68 1.2.8.2 tls if (!dbg->dbg_info_loaded) {
69 1.2.8.2 tls if (_dwarf_info_load(dbg, 1, error) != DW_DLE_NONE)
70 1.2.8.2 tls return (DW_DLV_ERROR);
71 1.2.8.2 tls }
72 1.2.8.2 tls
73 1.2.8.2 tls return (_dwarf_get_ranges(dbg, STAILQ_FIRST(&dbg->dbg_cu), offset,
74 1.2.8.2 tls ranges, ret_cnt, ret_byte_cnt, error));
75 1.2.8.2 tls }
76 1.2.8.2 tls
77 1.2.8.2 tls int
78 1.2.8.2 tls dwarf_get_ranges_a(Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Die die,
79 1.2.8.2 tls Dwarf_Ranges **ranges, Dwarf_Signed *ret_cnt, Dwarf_Unsigned *ret_byte_cnt,
80 1.2.8.2 tls Dwarf_Error *error)
81 1.2.8.2 tls {
82 1.2.8.2 tls
83 1.2.8.2 tls if (dbg == NULL || die == NULL || ranges == NULL || ret_cnt == NULL) {
84 1.2.8.2 tls DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
85 1.2.8.2 tls return (DW_DLV_ERROR);
86 1.2.8.2 tls }
87 1.2.8.2 tls
88 1.2.8.2 tls return (_dwarf_get_ranges(dbg, die->die_cu, offset, ranges, ret_cnt,
89 1.2.8.2 tls ret_byte_cnt, error));
90 1.2.8.2 tls }
91