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13437d4b 1/* Shared library declarations for GDB, the GNU Debugger.
197e01b6 2 Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000,
6aba47ca 3 2001, 2007 Free Software Foundation, Inc.
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4
5 This file is part of GDB.
6
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 2 of the License, or
10 (at your option) any later version.
11
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.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
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19 Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
13437d4b 21
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22#ifndef SOLIST_H
23#define SOLIST_H
24
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25#define SO_NAME_MAX_PATH_SIZE 512 /* FIXME: Should be dynamic */
26
27/* Forward declaration for target specific link map information. This
28 struct is opaque to all but the target specific file. */
29struct lm_info;
30
31struct so_list
32 {
33 /* The following fields of the structure come directly from the
34 dynamic linker's tables in the inferior, and are initialized by
35 current_sos. */
36
37 struct so_list *next; /* next structure in linked list */
38
39 /* A pointer to target specific link map information. Often this
40 will be a copy of struct link_map from the user process, but
41 it need not be; it can be any collection of data needed to
42 traverse the dynamic linker's data structures. */
43 struct lm_info *lm_info;
44
45 /* Shared object file name, exactly as it appears in the
46 inferior's link map. This may be a relative path, or something
47 which needs to be looked up in LD_LIBRARY_PATH, etc. We use it
48 to tell which entries in the inferior's dynamic linker's link
49 map we've already loaded. */
50 char so_original_name[SO_NAME_MAX_PATH_SIZE];
51
52 /* shared object file name, expanded to something GDB can open */
53 char so_name[SO_NAME_MAX_PATH_SIZE];
54
55 /* The following fields of the structure are built from
56 information gathered from the shared object file itself, and
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57 are set when we actually add it to our symbol tables.
58
59 current_sos must initialize these fields to 0. */
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60
61 bfd *abfd;
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62 char symbols_loaded; /* flag: symbols read in yet? */
63 char from_tty; /* flag: print msgs? */
64 struct objfile *objfile; /* objfile for loaded lib */
65 struct section_table *sections;
66 struct section_table *sections_end;
67 struct section_table *textsection;
68 };
69
70struct target_so_ops
71 {
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72 /* Adjust the section binding addresses by the base address at
73 which the object was actually mapped. */
74 void (*relocate_section_addresses) (struct so_list *so,
75 struct section_table *);
76
77 /* Free the the link map info and any other private data
78 structures associated with a so_list entry. */
13437d4b 79 void (*free_so) (struct so_list *so);
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80
81 /* Reset or free private data structures not associated with
82 so_list entries. */
13437d4b 83 void (*clear_solib) (void);
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84
85 /* Target dependent code to run after child process fork. */
13437d4b 86 void (*solib_create_inferior_hook) (void);
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87
88 /* Do additional symbol handling, lookup, etc. after symbols
89 for a shared object have been loaded. */
13437d4b 90 void (*special_symbol_handling) (void);
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91
92 /* Construct a list of the currently loaded shared objects. */
13437d4b 93 struct so_list *(*current_sos) (void);
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94
95 /* Find, open, and read the symbols for the main executable. */
13437d4b 96 int (*open_symbol_file_object) (void *from_ttyp);
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97
98 /* Determine if PC lies in the dynamic symbol resolution code of
99 the run time loader */
100 int (*in_dynsym_resolve_code) (CORE_ADDR pc);
2610b0bf 101
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102 /* Extra hook for finding and opening a solib.
103 Convenience function for remote debuggers finding host libs. */
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104 int (*find_and_open_solib) (char *soname,
105 unsigned o_flags, char **temp_pathname);
106
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107 };
108
f8766ec1 109/* Free the memory associated with a (so_list *). */
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110void free_so (struct so_list *so);
111
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112/* Return address of first so_list entry in master shared object list. */
113struct so_list *master_so_list (void);
114
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115/* Find solib binary file and open it. */
116extern int solib_open (char *in_pathname, char **found_pathname);
117
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118/* FIXME: gdbarch needs to control this variable */
119extern struct target_so_ops *current_target_so_ops;
120
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121#define TARGET_SO_RELOCATE_SECTION_ADDRESSES \
122 (current_target_so_ops->relocate_section_addresses)
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123#define TARGET_SO_FIND_AND_OPEN_SOLIB \
124 (current_target_so_ops->find_and_open_solib)
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125#define TARGET_SO_IN_DYNSYM_RESOLVE_CODE \
126 (current_target_so_ops->in_dynsym_resolve_code)
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127
128#endif