| 1 | /* Shared library declarations for GDB, the GNU Debugger. |
| 2 | Copyright 1990, 91, 92, 93, 94, 95, 96, 98, 1999, 2000 |
| 3 | Free Software Foundation, Inc. |
| 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 |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 20 | Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #define SO_NAME_MAX_PATH_SIZE 512 /* FIXME: Should be dynamic */ |
| 23 | |
| 24 | /* Forward declaration for target specific link map information. This |
| 25 | struct is opaque to all but the target specific file. */ |
| 26 | struct lm_info; |
| 27 | |
| 28 | struct so_list |
| 29 | { |
| 30 | /* The following fields of the structure come directly from the |
| 31 | dynamic linker's tables in the inferior, and are initialized by |
| 32 | current_sos. */ |
| 33 | |
| 34 | struct so_list *next; /* next structure in linked list */ |
| 35 | |
| 36 | /* A pointer to target specific link map information. Often this |
| 37 | will be a copy of struct link_map from the user process, but |
| 38 | it need not be; it can be any collection of data needed to |
| 39 | traverse the dynamic linker's data structures. */ |
| 40 | struct lm_info *lm_info; |
| 41 | |
| 42 | /* Shared object file name, exactly as it appears in the |
| 43 | inferior's link map. This may be a relative path, or something |
| 44 | which needs to be looked up in LD_LIBRARY_PATH, etc. We use it |
| 45 | to tell which entries in the inferior's dynamic linker's link |
| 46 | map we've already loaded. */ |
| 47 | char so_original_name[SO_NAME_MAX_PATH_SIZE]; |
| 48 | |
| 49 | /* shared object file name, expanded to something GDB can open */ |
| 50 | char so_name[SO_NAME_MAX_PATH_SIZE]; |
| 51 | |
| 52 | /* The following fields of the structure are built from |
| 53 | information gathered from the shared object file itself, and |
| 54 | are initialized when we actually add it to our symbol tables. */ |
| 55 | |
| 56 | bfd *abfd; |
| 57 | char symbols_loaded; /* flag: symbols read in yet? */ |
| 58 | char from_tty; /* flag: print msgs? */ |
| 59 | struct objfile *objfile; /* objfile for loaded lib */ |
| 60 | struct section_table *sections; |
| 61 | struct section_table *sections_end; |
| 62 | struct section_table *textsection; |
| 63 | }; |
| 64 | |
| 65 | struct target_so_ops |
| 66 | { |
| 67 | /* Adjust the section binding addresses by the base address at |
| 68 | which the object was actually mapped. */ |
| 69 | void (*relocate_section_addresses) (struct so_list *so, |
| 70 | struct section_table *); |
| 71 | |
| 72 | /* Free the the link map info and any other private data |
| 73 | structures associated with a so_list entry. */ |
| 74 | void (*free_so) (struct so_list *so); |
| 75 | |
| 76 | /* Reset or free private data structures not associated with |
| 77 | so_list entries. */ |
| 78 | void (*clear_solib) (void); |
| 79 | |
| 80 | /* Target dependent code to run after child process fork. */ |
| 81 | void (*solib_create_inferior_hook) (void); |
| 82 | |
| 83 | /* Do additional symbol handling, lookup, etc. after symbols |
| 84 | for a shared object have been loaded. */ |
| 85 | void (*special_symbol_handling) (void); |
| 86 | |
| 87 | /* Construct a list of the currently loaded shared objects. */ |
| 88 | struct so_list *(*current_sos) (void); |
| 89 | |
| 90 | /* Find, open, and read the symbols for the main executable. */ |
| 91 | int (*open_symbol_file_object) (void *from_ttyp); |
| 92 | }; |
| 93 | |
| 94 | void free_so (struct so_list *so); |
| 95 | |
| 96 | /* Find solib binary file and open it. */ |
| 97 | extern int solib_open (char *in_pathname, char **found_pathname); |
| 98 | |
| 99 | /* FIXME: gdbarch needs to control this variable */ |
| 100 | extern struct target_so_ops *current_target_so_ops; |
| 101 | |
| 102 | #define TARGET_SO_RELOCATE_SECTION_ADDRESSES \ |
| 103 | (current_target_so_ops->relocate_section_addresses) |
| 104 | #define TARGET_SO_FREE_SO (current_target_so_ops->free_so) |
| 105 | #define TARGET_SO_CLEAR_SOLIB (current_target_so_ops->clear_solib) |
| 106 | #define TARGET_SO_SOLIB_CREATE_INFERIOR_HOOK \ |
| 107 | (current_target_so_ops->solib_create_inferior_hook) |
| 108 | #define TARGET_SO_SPECIAL_SYMBOL_HANDLING \ |
| 109 | (current_target_so_ops->special_symbol_handling) |
| 110 | #define TARGET_SO_CURRENT_SOS (current_target_so_ops->current_sos) |
| 111 | #define TARGET_SO_OPEN_SYMBOL_FILE_OBJECT \ |
| 112 | (current_target_so_ops->open_symbol_file_object) |