1 /*
2
3 Copyright (C) 2000,2002,2004,2005 Silicon Graphics, Inc. All Rights Reserved.
4 Portions Copyright (C) 2009-2011 David Anderson. All Rights Reserved.
5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms of version 2.1 of the GNU Lesser General Public License
8 as published by the Free Software Foundation.
9
10 This program is distributed in the hope that it would be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13
14 Further, this software is distributed without any warranty that it is
15 free of the rightful claim of any third person regarding infringement
16 or the like. Any license provided herein, whether implied or
17 otherwise, applies only to this software file. Patent licenses, if
18 any, provided herein do not apply to combinations of this program with
19 other software, or any other product whatsoever.
20
21 You should have received a copy of the GNU Lesser General Public
22 License along with this program; if not, write the Free Software
23 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston MA 02110-1301,
24 USA.
25
26 */
27
28 #include "config.h"
29 #include <stdio.h>
30 #include "dwarf_incl.h"
31 #include "dwarf_error.h"
32 #include "dwarf_vars.h"
33 #include "dwarf_global.h"
34
35 int
dwarf_get_vars(Dwarf_Debug dbg,Dwarf_Var ** vars,Dwarf_Signed * ret_var_count,Dwarf_Error * error)36 dwarf_get_vars(Dwarf_Debug dbg,
37 Dwarf_Var ** vars,
38 Dwarf_Signed * ret_var_count, Dwarf_Error * error)
39 {
40 int res = _dwarf_load_section(dbg, &dbg->de_debug_varnames,error);
41 if (res != DW_DLV_OK) {
42 return res;
43 }
44 if (!dbg->de_debug_abbrev.dss_size) {
45 return (DW_DLV_NO_ENTRY);
46 }
47
48 return _dwarf_internal_get_pubnames_like_data(dbg,
49 dbg->de_debug_varnames.dss_data,
50 dbg->de_debug_varnames.dss_size,
51 (Dwarf_Global **) vars, /* Type punning for sections
52 with identical format. */
53 ret_var_count,
54 error,
55 DW_DLA_VAR_CONTEXT,
56 DW_DLA_VAR,
57 DW_DLE_DEBUG_VARNAMES_LENGTH_BAD,
58 DW_DLE_DEBUG_VARNAMES_VERSION_ERROR);
59 }
60
61 /* Deallocating fully requires deallocating the list
62 and all entries. But some internal data is
63 not exposed, so we need a function with internal knowledge.
64 */
65
66 void
dwarf_vars_dealloc(Dwarf_Debug dbg,Dwarf_Var * dwgl,Dwarf_Signed count)67 dwarf_vars_dealloc(Dwarf_Debug dbg, Dwarf_Var * dwgl,
68 Dwarf_Signed count)
69 {
70 _dwarf_internal_globals_dealloc(dbg, (Dwarf_Global *) dwgl,
71 count,
72 DW_DLA_VAR_CONTEXT,
73 DW_DLA_VAR, DW_DLA_LIST);
74 return;
75 }
76
77
78 int
dwarf_varname(Dwarf_Var var_in,char ** ret_varname,Dwarf_Error * error)79 dwarf_varname(Dwarf_Var var_in, char **ret_varname, Dwarf_Error * error)
80 {
81 Dwarf_Global var = (Dwarf_Global) var_in;
82
83 if (var == NULL) {
84 _dwarf_error(NULL, error, DW_DLE_VAR_NULL);
85 return (DW_DLV_ERROR);
86 }
87
88 *ret_varname = (char *) (var->gl_name);
89 return DW_DLV_OK;
90 }
91
92
93 int
dwarf_var_die_offset(Dwarf_Var var_in,Dwarf_Off * returned_offset,Dwarf_Error * error)94 dwarf_var_die_offset(Dwarf_Var var_in,
95 Dwarf_Off * returned_offset, Dwarf_Error * error)
96 {
97 Dwarf_Global var = (Dwarf_Global) var_in;
98
99 return dwarf_global_die_offset(var, returned_offset, error);
100
101 }
102
103
104 int
dwarf_var_cu_offset(Dwarf_Var var_in,Dwarf_Off * returned_offset,Dwarf_Error * error)105 dwarf_var_cu_offset(Dwarf_Var var_in,
106 Dwarf_Off * returned_offset, Dwarf_Error * error)
107 {
108 Dwarf_Global var = (Dwarf_Global) var_in;
109
110 return dwarf_global_cu_offset(var, returned_offset, error);
111 }
112
113
114 int
dwarf_var_name_offsets(Dwarf_Var var_in,char ** returned_name,Dwarf_Off * die_offset,Dwarf_Off * cu_offset,Dwarf_Error * error)115 dwarf_var_name_offsets(Dwarf_Var var_in,
116 char **returned_name,
117 Dwarf_Off * die_offset,
118 Dwarf_Off * cu_offset, Dwarf_Error * error)
119 {
120 Dwarf_Global var = (Dwarf_Global) var_in;
121
122 return
123 dwarf_global_name_offsets(var,
124 returned_name, die_offset, cu_offset,
125 error);
126 }
127