Commit | Line | Data |
---|---|---|
3054dd54 TT |
1 | /* DWARF abbrev table |
2 | ||
3 | Copyright (C) 1994-2020 Free Software Foundation, Inc. | |
4 | ||
5 | Adapted by Gary Funck (gary@intrepid.com), Intrepid Technology, | |
6 | Inc. with support from Florida State University (under contract | |
7 | with the Ada Joint Program Office), and Silicon Graphics, Inc. | |
8 | Initial contribution by Brent Benson, Harris Computer Systems, Inc., | |
9 | based on Fred Fish's (Cygnus Support) implementation of DWARF 1 | |
10 | support. | |
11 | ||
12 | This file is part of GDB. | |
13 | ||
14 | This program is free software; you can redistribute it and/or modify | |
15 | it under the terms of the GNU General Public License as published by | |
16 | the Free Software Foundation; either version 3 of the License, or | |
17 | (at your option) any later version. | |
18 | ||
19 | This program is distributed in the hope that it will be useful, | |
20 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | GNU General Public License for more details. | |
23 | ||
24 | You should have received a copy of the GNU General Public License | |
25 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
26 | ||
27 | #ifndef GDB_DWARF2_ABBREV_H | |
28 | #define GDB_DWARF2_ABBREV_H | |
29 | ||
30 | /* This data structure holds the information of an abbrev. */ | |
31 | struct abbrev_info | |
32 | { | |
33 | unsigned int number; /* number identifying abbrev */ | |
34 | enum dwarf_tag tag; /* dwarf tag */ | |
35 | unsigned short has_children; /* boolean */ | |
36 | unsigned short num_attrs; /* number of attributes */ | |
37 | struct attr_abbrev *attrs; /* an array of attribute descriptions */ | |
3054dd54 TT |
38 | }; |
39 | ||
40 | struct attr_abbrev | |
41 | { | |
42 | ENUM_BITFIELD(dwarf_attribute) name : 16; | |
43 | ENUM_BITFIELD(dwarf_form) form : 16; | |
44 | ||
45 | /* It is valid only if FORM is DW_FORM_implicit_const. */ | |
46 | LONGEST implicit_const; | |
47 | }; | |
48 | ||
86de1d91 TT |
49 | struct abbrev_table; |
50 | typedef std::unique_ptr<struct abbrev_table> abbrev_table_up; | |
51 | ||
3054dd54 TT |
52 | /* Top level data structure to contain an abbreviation table. */ |
53 | ||
54 | struct abbrev_table | |
55 | { | |
86de1d91 TT |
56 | static abbrev_table_up read (struct objfile *objfile, |
57 | struct dwarf2_section_info *section, | |
58 | sect_offset sect_off); | |
59 | ||
60 | /* Look up an abbrev in the table. | |
61 | Returns NULL if the abbrev is not found. */ | |
62 | ||
63 | struct abbrev_info *lookup_abbrev (unsigned int abbrev_number); | |
64 | ||
65 | ||
66 | /* Where the abbrev table came from. | |
67 | This is used as a sanity check when the table is used. */ | |
68 | const sect_offset sect_off; | |
69 | ||
70 | private: | |
71 | ||
1d33d811 | 72 | explicit abbrev_table (sect_offset off); |
3054dd54 TT |
73 | |
74 | DISABLE_COPY_AND_ASSIGN (abbrev_table); | |
75 | ||
76 | /* Allocate space for a struct abbrev_info object in | |
77 | ABBREV_TABLE. */ | |
78 | struct abbrev_info *alloc_abbrev (); | |
79 | ||
80 | /* Add an abbreviation to the table. */ | |
81 | void add_abbrev (unsigned int abbrev_number, struct abbrev_info *abbrev); | |
82 | ||
1d33d811 TT |
83 | /* Hash table of abbrevs. */ |
84 | htab_up m_abbrevs; | |
3054dd54 | 85 | |
86de1d91 TT |
86 | /* Storage for the abbrev table. */ |
87 | auto_obstack m_abbrev_obstack; | |
88 | }; | |
3054dd54 TT |
89 | |
90 | #endif /* GDB_DWARF2_ABBREV_H */ |