1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/* Handle shared libraries for GDB, the GNU Debugger.
Copyright 2000, 2004
Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef SOLIB_SVR4_H
#define SOLIB_SVR4_H
struct objfile;
/* Critical offsets and sizes which describe struct r_debug and
struct link_map on SVR4-like targets. All offsets and sizes are
in bytes unless otherwise specified. */
struct link_map_offsets
{
/* Size of struct r_debug (or equivalent), or at least enough of it to
be able to obtain the r_map field. */
int r_debug_size;
/* Offset to the r_map field in struct r_debug. */
int r_map_offset;
/* Size of the r_map field in struct r_debug. */
int r_map_size;
/* Size of struct link_map (or equivalent), or at least enough of it
to be able to obtain the fields below. */
int link_map_size;
/* Offset to l_addr field in struct link_map. */
int l_addr_offset;
/* Size of l_addr field in struct link_map. */
int l_addr_size;
/* Offset to l_next field in struct link_map. */
int l_next_offset;
/* Size of l_next field in struct link_map. */
int l_next_size;
/* Offset to l_prev field in struct link_map. */
int l_prev_offset;
/* Size of l_prev field in struct link_map. */
int l_prev_size;
/* Offset to l_name field in struct link_map. */
int l_name_offset;
/* Size of l_name field in struct link_map. */
int l_name_size;
};
/* set_solib_svr4_fetch_link_map_offsets() is intended to be called by
a <arch>_gdbarch_init() function. It is used to establish an
architecture specific link_map_offsets fetcher for the architecture
being defined. */
extern void set_solib_svr4_fetch_link_map_offsets
(struct gdbarch *gdbarch, struct link_map_offsets *(*func) (void));
/* This function is called by thread_db.c. Return the address of the
link map for the given objfile. */
extern CORE_ADDR svr4_fetch_objfile_link_map (struct objfile *objfile);
/* legacy_svr4_fetch_link_map_offsets_hook is a pointer to a function
which is used to fetch link map offsets. It will only be set
by solib-legacy.c, if at all. */
extern struct link_map_offsets *(*legacy_svr4_fetch_link_map_offsets_hook) (void);
/* Fetch (and possibly build) an appropriate `struct link_map_offsets'
for ILP32 and LP64 SVR4 systems. */
extern struct link_map_offsets *svr4_ilp32_fetch_link_map_offsets (void);
extern struct link_map_offsets *svr4_lp64_fetch_link_map_offsets (void);
#endif /* solib-svr4.h */
|
