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13437d4b | 1 | /* Handle shared libraries for GDB, the GNU Debugger. |
e4bbbda8 | 2 | |
e4cd0d6a | 3 | Copyright (C) 2000, 2004, 2006 |
13437d4b KB |
4 | Free Software Foundation, Inc. |
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 | |
10 | the Free Software Foundation; either version 2 of the License, or | |
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 | |
19 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
13437d4b | 22 | |
82b38f72 MK |
23 | #ifndef SOLIB_SVR4_H |
24 | #define SOLIB_SVR4_H | |
db1ea9ba | 25 | |
da3331ec AC |
26 | struct objfile; |
27 | ||
13437d4b KB |
28 | /* Critical offsets and sizes which describe struct r_debug and |
29 | struct link_map on SVR4-like targets. All offsets and sizes are | |
30 | in bytes unless otherwise specified. */ | |
31 | ||
32 | struct link_map_offsets | |
33 | { | |
e4cd0d6a MK |
34 | /* Offset and size of r_debug.r_version. */ |
35 | int r_version_offset, r_version_size; | |
13437d4b | 36 | |
e4cd0d6a | 37 | /* Offset of r_debug.r_map. */ |
13437d4b KB |
38 | int r_map_offset; |
39 | ||
e4cd0d6a MK |
40 | /* Offset of r_debug.r_ldsomap. */ |
41 | int r_ldsomap_offset; | |
13437d4b KB |
42 | |
43 | /* Size of struct link_map (or equivalent), or at least enough of it | |
44 | to be able to obtain the fields below. */ | |
45 | int link_map_size; | |
46 | ||
47 | /* Offset to l_addr field in struct link_map. */ | |
48 | int l_addr_offset; | |
49 | ||
50 | /* Size of l_addr field in struct link_map. */ | |
51 | int l_addr_size; | |
52 | ||
cc10cae3 AO |
53 | /* Offset to l_ld field in struct link_map. */ |
54 | int l_ld_offset; | |
55 | ||
56 | /* Size of l_ld field in struct link_map. */ | |
57 | int l_ld_size; | |
58 | ||
13437d4b KB |
59 | /* Offset to l_next field in struct link_map. */ |
60 | int l_next_offset; | |
61 | ||
62 | /* Size of l_next field in struct link_map. */ | |
63 | int l_next_size; | |
64 | ||
65 | /* Offset to l_prev field in struct link_map. */ | |
66 | int l_prev_offset; | |
67 | ||
68 | /* Size of l_prev field in struct link_map. */ | |
69 | int l_prev_size; | |
70 | ||
71 | /* Offset to l_name field in struct link_map. */ | |
72 | int l_name_offset; | |
73 | ||
74 | /* Size of l_name field in struct link_map. */ | |
75 | int l_name_size; | |
76 | }; | |
77 | ||
e5e2b9ff KB |
78 | /* set_solib_svr4_fetch_link_map_offsets() is intended to be called by |
79 | a <arch>_gdbarch_init() function. It is used to establish an | |
80 | architecture specific link_map_offsets fetcher for the architecture | |
81 | being defined. */ | |
82 | ||
83 | extern void set_solib_svr4_fetch_link_map_offsets | |
84 | (struct gdbarch *gdbarch, struct link_map_offsets *(*func) (void)); | |
21479ded | 85 | |
550633cb EZ |
86 | /* This function is called by thread_db.c. Return the address of the |
87 | link map for the given objfile. */ | |
88 | extern CORE_ADDR svr4_fetch_objfile_link_map (struct objfile *objfile); | |
89 | ||
21479ded KB |
90 | /* legacy_svr4_fetch_link_map_offsets_hook is a pointer to a function |
91 | which is used to fetch link map offsets. It will only be set | |
7095b863 MS |
92 | by solib-legacy.c, if at all. */ |
93 | extern struct link_map_offsets *(*legacy_svr4_fetch_link_map_offsets_hook) (void); | |
e4bbbda8 MK |
94 | |
95 | /* Fetch (and possibly build) an appropriate `struct link_map_offsets' | |
96 | for ILP32 and LP64 SVR4 systems. */ | |
97 | extern struct link_map_offsets *svr4_ilp32_fetch_link_map_offsets (void); | |
98 | extern struct link_map_offsets *svr4_lp64_fetch_link_map_offsets (void); | |
db1ea9ba | 99 | |
82b38f72 | 100 | #endif /* solib-svr4.h */ |