1/*
2
3  Copyright (C) 2000,2002,2004,2005 Silicon Graphics, Inc.  All Rights Reserved.
4  Portions Copyright (C) 2009-2010 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  Contact information:  Silicon Graphics, Inc., 1500 Crittenden Lane,
27  Mountain View, CA 94043, or:
28
29  http://www.sgi.com
30
31  For further information regarding this notice, see:
32
33  http://oss.sgi.com/projects/GenInfo/NoticeExplan
34
35*/
36
37
38
39#include "config.h"
40#include "dwarf_incl.h"
41#include <stdio.h>
42#include "dwarf_vars.h"
43#include "dwarf_global.h"
44
45int
46dwarf_get_vars(Dwarf_Debug dbg,
47    Dwarf_Var ** vars,
48    Dwarf_Signed * ret_var_count, Dwarf_Error * error)
49{
50    int res = _dwarf_load_section(dbg, &dbg->de_debug_varnames,error);
51    if (res != DW_DLV_OK) {
52        return res;
53    }
54
55    return _dwarf_internal_get_pubnames_like_data(dbg,
56        dbg->de_debug_varnames.dss_data,
57        dbg->de_debug_varnames.dss_size,
58        (Dwarf_Global **) vars, /* Type punning for sections
59            with identical format. */
60        ret_var_count,
61        error,
62        DW_DLA_VAR_CONTEXT,
63        DW_DLA_VAR,
64        DW_DLE_DEBUG_VARNAMES_LENGTH_BAD,
65        DW_DLE_DEBUG_VARNAMES_VERSION_ERROR);
66}
67
68/* Deallocating fully requires deallocating the list
69   and all entries.  But some internal data is
70   not exposed, so we need a function with internal knowledge.
71*/
72
73void
74dwarf_vars_dealloc(Dwarf_Debug dbg, Dwarf_Var * dwgl,
75                   Dwarf_Signed count)
76{
77    _dwarf_internal_globals_dealloc(dbg, (Dwarf_Global *) dwgl,
78        count,
79        DW_DLA_VAR_CONTEXT,
80        DW_DLA_VAR, DW_DLA_LIST);
81    return;
82}
83
84
85int
86dwarf_varname(Dwarf_Var var_in, char **ret_varname, Dwarf_Error * error)
87{
88    Dwarf_Global var = (Dwarf_Global) var_in;
89
90    if (var == NULL) {
91        _dwarf_error(NULL, error, DW_DLE_VAR_NULL);
92        return (DW_DLV_ERROR);
93    }
94
95    *ret_varname = (char *) (var->gl_name);
96    return DW_DLV_OK;
97}
98
99
100int
101dwarf_var_die_offset(Dwarf_Var var_in,
102        Dwarf_Off * returned_offset, Dwarf_Error * error)
103{
104    Dwarf_Global var = (Dwarf_Global) var_in;
105
106    return dwarf_global_die_offset(var, returned_offset, error);
107
108}
109
110
111int
112dwarf_var_cu_offset(Dwarf_Var var_in,
113                    Dwarf_Off * returned_offset, Dwarf_Error * error)
114{
115    Dwarf_Global var = (Dwarf_Global) var_in;
116
117    return dwarf_global_cu_offset(var, returned_offset, error);
118}
119
120
121int
122dwarf_var_name_offsets(Dwarf_Var var_in,
123        char **returned_name,
124        Dwarf_Off * die_offset,
125        Dwarf_Off * cu_offset, Dwarf_Error * error)
126{
127    Dwarf_Global var = (Dwarf_Global) var_in;
128
129    return
130        dwarf_global_name_offsets(var,
131            returned_name, die_offset, cu_offset,
132            error);
133}
134