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852483bc MK |
1 | /* DWARF 2 location expression support for GDB. |
2 | ||
4c38e0a4 JB |
3 | Copyright (C) 2003, 2005, 2007, 2008, 2009, 2010 |
4 | Free Software Foundation, Inc. | |
4c2df51b DJ |
5 | |
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
4c2df51b DJ |
11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
4c2df51b DJ |
20 | |
21 | #if !defined (DWARF2LOC_H) | |
22 | #define DWARF2LOC_H | |
23 | ||
768a979c | 24 | struct symbol_computed_ops; |
ae0d2f24 UW |
25 | struct objfile; |
26 | struct dwarf2_per_cu_data; | |
a67af2b9 | 27 | |
4c2df51b DJ |
28 | /* This header is private to the DWARF-2 reader. It is shared between |
29 | dwarf2read.c and dwarf2loc.c. */ | |
30 | ||
ae0d2f24 UW |
31 | /* Return the OBJFILE associated with the compilation unit CU. */ |
32 | struct objfile *dwarf2_per_cu_objfile (struct dwarf2_per_cu_data *cu); | |
33 | ||
34 | /* Return the address size given in the compilation unit header for CU. */ | |
35 | CORE_ADDR dwarf2_per_cu_addr_size (struct dwarf2_per_cu_data *cu); | |
36 | ||
0d53c4c4 DJ |
37 | /* The symbol location baton types used by the DWARF-2 reader (i.e. |
38 | SYMBOL_LOCATION_BATON for a LOC_COMPUTED symbol). "struct | |
39 | dwarf2_locexpr_baton" is for a symbol with a single location | |
40 | expression; "struct dwarf2_loclist_baton" is for a symbol with a | |
41 | location list. */ | |
4c2df51b DJ |
42 | |
43 | struct dwarf2_locexpr_baton | |
44 | { | |
0d53c4c4 | 45 | /* Pointer to the start of the location expression. */ |
852483bc | 46 | gdb_byte *data; |
0d53c4c4 DJ |
47 | |
48 | /* Length of the location expression. */ | |
607269ae | 49 | unsigned long size; |
0d53c4c4 | 50 | |
ae0d2f24 UW |
51 | /* The compilation unit containing the symbol whose location |
52 | we're computing. */ | |
53 | struct dwarf2_per_cu_data *per_cu; | |
0d53c4c4 DJ |
54 | }; |
55 | ||
56 | struct dwarf2_loclist_baton | |
57 | { | |
58 | /* The initial base address for the location list, based on the compilation | |
59 | unit. */ | |
60 | CORE_ADDR base_address; | |
61 | ||
62 | /* Pointer to the start of the location list. */ | |
852483bc | 63 | gdb_byte *data; |
0d53c4c4 DJ |
64 | |
65 | /* Length of the location list. */ | |
607269ae | 66 | unsigned long size; |
0d53c4c4 | 67 | |
ae0d2f24 UW |
68 | /* The compilation unit containing the symbol whose location |
69 | we're computing. */ | |
70 | struct dwarf2_per_cu_data *per_cu; | |
4c2df51b DJ |
71 | }; |
72 | ||
768a979c UW |
73 | extern const struct symbol_computed_ops dwarf2_locexpr_funcs; |
74 | extern const struct symbol_computed_ops dwarf2_loclist_funcs; | |
4c2df51b | 75 | |
852483bc | 76 | #endif /* dwarf2loc.h */ |