3 Copyright (C) 2003-2020 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 #ifndef GDB_DWARF2_DIE_H
21 #define GDB_DWARF2_DIE_H
23 /* This data structure holds a complete die structure. */
26 /* Return the named attribute or NULL if not there, but do not
27 follow DW_AT_specification, etc. */
28 struct attribute
*attr (dwarf_attribute name
)
30 for (unsigned i
= 0; i
< num_attrs
; ++i
)
31 if (attrs
[i
].name
== name
)
36 /* Return the address base of the compile unit, which, if exists, is
37 stored either at the attribute DW_AT_GNU_addr_base, or
39 gdb::optional
<ULONGEST
> addr_base ()
41 for (unsigned i
= 0; i
< num_attrs
; ++i
)
42 if (attrs
[i
].name
== DW_AT_addr_base
43 || attrs
[i
].name
== DW_AT_GNU_addr_base
)
45 /* If both exist, just use the first one. */
46 return DW_UNSND (&attrs
[i
]);
48 return gdb::optional
<ULONGEST
> ();
51 /* Return range lists base of the compile unit, which, if exists, is
52 stored either at the attribute DW_AT_rnglists_base or
53 DW_AT_GNU_ranges_base. */
54 ULONGEST
ranges_base ()
56 for (unsigned i
= 0; i
< num_attrs
; ++i
)
57 if (attrs
[i
].name
== DW_AT_rnglists_base
58 || attrs
[i
].name
== DW_AT_GNU_ranges_base
)
60 /* If both exist, just use the first one. */
61 return DW_UNSND (&attrs
[i
]);
67 /* DWARF-2 tag for this DIE. */
68 ENUM_BITFIELD(dwarf_tag
) tag
: 16;
70 /* Number of attributes */
71 unsigned char num_attrs
;
73 /* True if we're presently building the full type name for the
74 type derived from this DIE. */
75 unsigned char building_fullname
: 1;
77 /* True if this die is in process. PR 16581. */
78 unsigned char in_process
: 1;
80 /* True if this DIE has children. */
81 unsigned char has_children
: 1;
86 /* Offset in .debug_info or .debug_types section. */
89 /* The dies in a compilation unit form an n-ary tree. PARENT
90 points to this die's parent; CHILD points to the first child of
91 this node; and all the children of a given node are chained
92 together via their SIBLING fields. */
93 struct die_info
*child
; /* Its first child, if any. */
94 struct die_info
*sibling
; /* Its next sibling, if any. */
95 struct die_info
*parent
; /* Its parent, if any. */
97 /* An array of attributes, with NUM_ATTRS elements. There may be
98 zero, but it's not common and zero-sized arrays are not
99 sufficiently portable C. */
100 struct attribute attrs
[1];
103 #endif /* GDB_DWARF2_DIE_H */
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