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13437d4b | 1 | /* Shared library declarations for GDB, the GNU Debugger. |
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2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, |
3 | 2001 | |
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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 | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | #define SO_NAME_MAX_PATH_SIZE 512 /* FIXME: Should be dynamic */ | |
24 | ||
25 | /* Forward declaration for target specific link map information. This | |
26 | struct is opaque to all but the target specific file. */ | |
27 | struct lm_info; | |
28 | ||
29 | struct so_list | |
30 | { | |
31 | /* The following fields of the structure come directly from the | |
32 | dynamic linker's tables in the inferior, and are initialized by | |
33 | current_sos. */ | |
34 | ||
35 | struct so_list *next; /* next structure in linked list */ | |
36 | ||
37 | /* A pointer to target specific link map information. Often this | |
38 | will be a copy of struct link_map from the user process, but | |
39 | it need not be; it can be any collection of data needed to | |
40 | traverse the dynamic linker's data structures. */ | |
41 | struct lm_info *lm_info; | |
42 | ||
43 | /* Shared object file name, exactly as it appears in the | |
44 | inferior's link map. This may be a relative path, or something | |
45 | which needs to be looked up in LD_LIBRARY_PATH, etc. We use it | |
46 | to tell which entries in the inferior's dynamic linker's link | |
47 | map we've already loaded. */ | |
48 | char so_original_name[SO_NAME_MAX_PATH_SIZE]; | |
49 | ||
50 | /* shared object file name, expanded to something GDB can open */ | |
51 | char so_name[SO_NAME_MAX_PATH_SIZE]; | |
52 | ||
53 | /* The following fields of the structure are built from | |
54 | information gathered from the shared object file itself, and | |
55 | are initialized when we actually add it to our symbol tables. */ | |
56 | ||
57 | bfd *abfd; | |
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58 | char symbols_loaded; /* flag: symbols read in yet? */ |
59 | char from_tty; /* flag: print msgs? */ | |
60 | struct objfile *objfile; /* objfile for loaded lib */ | |
61 | struct section_table *sections; | |
62 | struct section_table *sections_end; | |
63 | struct section_table *textsection; | |
64 | }; | |
65 | ||
66 | struct target_so_ops | |
67 | { | |
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68 | /* Adjust the section binding addresses by the base address at |
69 | which the object was actually mapped. */ | |
70 | void (*relocate_section_addresses) (struct so_list *so, | |
71 | struct section_table *); | |
72 | ||
73 | /* Free the the link map info and any other private data | |
74 | structures associated with a so_list entry. */ | |
13437d4b | 75 | void (*free_so) (struct so_list *so); |
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76 | |
77 | /* Reset or free private data structures not associated with | |
78 | so_list entries. */ | |
13437d4b | 79 | void (*clear_solib) (void); |
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80 | |
81 | /* Target dependent code to run after child process fork. */ | |
13437d4b | 82 | void (*solib_create_inferior_hook) (void); |
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83 | |
84 | /* Do additional symbol handling, lookup, etc. after symbols | |
85 | for a shared object have been loaded. */ | |
13437d4b | 86 | void (*special_symbol_handling) (void); |
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87 | |
88 | /* Construct a list of the currently loaded shared objects. */ | |
13437d4b | 89 | struct so_list *(*current_sos) (void); |
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90 | |
91 | /* Find, open, and read the symbols for the main executable. */ | |
13437d4b | 92 | int (*open_symbol_file_object) (void *from_ttyp); |
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93 | |
94 | /* Determine if PC lies in the dynamic symbol resolution code of | |
95 | the run time loader */ | |
96 | int (*in_dynsym_resolve_code) (CORE_ADDR pc); | |
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97 | }; |
98 | ||
99 | void free_so (struct so_list *so); | |
100 | ||
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101 | /* Find solib binary file and open it. */ |
102 | extern int solib_open (char *in_pathname, char **found_pathname); | |
103 | ||
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104 | /* FIXME: gdbarch needs to control this variable */ |
105 | extern struct target_so_ops *current_target_so_ops; | |
106 | ||
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107 | #define TARGET_SO_RELOCATE_SECTION_ADDRESSES \ |
108 | (current_target_so_ops->relocate_section_addresses) | |
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109 | #define TARGET_SO_FREE_SO (current_target_so_ops->free_so) |
110 | #define TARGET_SO_CLEAR_SOLIB (current_target_so_ops->clear_solib) | |
111 | #define TARGET_SO_SOLIB_CREATE_INFERIOR_HOOK \ | |
112 | (current_target_so_ops->solib_create_inferior_hook) | |
113 | #define TARGET_SO_SPECIAL_SYMBOL_HANDLING \ | |
114 | (current_target_so_ops->special_symbol_handling) | |
115 | #define TARGET_SO_CURRENT_SOS (current_target_so_ops->current_sos) | |
116 | #define TARGET_SO_OPEN_SYMBOL_FILE_OBJECT \ | |
117 | (current_target_so_ops->open_symbol_file_object) | |
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118 | #define TARGET_SO_IN_DYNSYM_RESOLVE_CODE \ |
119 | (current_target_so_ops->in_dynsym_resolve_code) |