1 /*-
2 * Copyright (c) 2009 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
29 ELFTC_VCSID("$Id: dwarf_pro_die.c 2074 2011-10-27 03:34:33Z jkoshy $");
30
31 Dwarf_Unsigned
dwarf_add_die_to_debug(Dwarf_P_Debug dbg,Dwarf_P_Die first_die,Dwarf_Error * error)32 dwarf_add_die_to_debug(Dwarf_P_Debug dbg, Dwarf_P_Die first_die,
33 Dwarf_Error *error)
34 {
35
36 if (dbg == NULL || first_die == NULL) {
37 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
38 return (DW_DLV_NOCOUNT);
39 }
40
41 dbg->dbgp_root_die = first_die;
42
43 return (DW_DLV_OK);
44 }
45
46 Dwarf_P_Die
dwarf_new_die(Dwarf_P_Debug dbg,Dwarf_Tag new_tag,Dwarf_P_Die parent,Dwarf_P_Die child,Dwarf_P_Die left_sibling,Dwarf_P_Die right_sibling,Dwarf_Error * error)47 dwarf_new_die(Dwarf_P_Debug dbg, Dwarf_Tag new_tag,
48 Dwarf_P_Die parent, Dwarf_P_Die child, Dwarf_P_Die left_sibling,
49 Dwarf_P_Die right_sibling, Dwarf_Error *error)
50 {
51 Dwarf_P_Die die;
52 int count;
53
54 if (dbg == NULL) {
55 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
56 return (DW_DLV_BADADDR);
57 }
58
59 count = _dwarf_die_count_links(parent, child, left_sibling,
60 right_sibling);
61
62 if (count > 1) {
63 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
64 return (DW_DLV_BADADDR);
65 }
66
67 if (_dwarf_die_alloc(dbg, &die, error) != DW_DLE_NONE)
68 return (DW_DLV_BADADDR);
69
70 die->die_dbg = dbg;
71 die->die_tag = new_tag;
72
73 STAILQ_INSERT_TAIL(&dbg->dbgp_dielist, die, die_pro_next);
74
75 if (count == 0)
76 return (die);
77
78 _dwarf_die_link(die, parent, child, left_sibling, right_sibling);
79
80 return (die);
81 }
82
83 Dwarf_P_Die
dwarf_die_link(Dwarf_P_Die die,Dwarf_P_Die parent,Dwarf_P_Die child,Dwarf_P_Die left_sibling,Dwarf_P_Die right_sibling,Dwarf_Error * error)84 dwarf_die_link(Dwarf_P_Die die, Dwarf_P_Die parent,
85 Dwarf_P_Die child, Dwarf_P_Die left_sibling, Dwarf_P_Die right_sibling,
86 Dwarf_Error *error)
87 {
88 Dwarf_Debug dbg;
89 int count;
90
91
92 if (die == NULL) {
93 DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
94 return (DW_DLV_BADADDR);
95 }
96
97 dbg = die->die_dbg;
98 count = _dwarf_die_count_links(parent, child, left_sibling,
99 right_sibling);
100
101 if (count > 1) {
102 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
103 return (DW_DLV_BADADDR);
104 } else if (count == 0)
105 return (die);
106
107 _dwarf_die_link(die, parent, child, left_sibling, right_sibling);
108
109 return (die);
110 }
111