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e4f7b8c818
* solist.h: Declare new function solib_open.
* solib.c (solib_open): New function. Abstracts some of the
code from solib_map_sections, for finding the binary solib file.
(solib_map_sections): Call solib_open.
* solib-svr4.c (enable_break): Call solib_open.
113 lines
4.4 KiB
C
113 lines
4.4 KiB
C
/* Shared library declarations for GDB, the GNU Debugger.
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Copyright 1990, 91, 92, 93, 94, 95, 96, 98, 1999, 2000
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Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#define SO_NAME_MAX_PATH_SIZE 512 /* FIXME: Should be dynamic */
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/* Forward declaration for target specific link map information. This
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struct is opaque to all but the target specific file. */
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struct lm_info;
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struct so_list
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{
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/* The following fields of the structure come directly from the
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dynamic linker's tables in the inferior, and are initialized by
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current_sos. */
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struct so_list *next; /* next structure in linked list */
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/* A pointer to target specific link map information. Often this
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will be a copy of struct link_map from the user process, but
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it need not be; it can be any collection of data needed to
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traverse the dynamic linker's data structures. */
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struct lm_info *lm_info;
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/* Shared object file name, exactly as it appears in the
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inferior's link map. This may be a relative path, or something
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which needs to be looked up in LD_LIBRARY_PATH, etc. We use it
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to tell which entries in the inferior's dynamic linker's link
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map we've already loaded. */
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char so_original_name[SO_NAME_MAX_PATH_SIZE];
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/* shared object file name, expanded to something GDB can open */
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char so_name[SO_NAME_MAX_PATH_SIZE];
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/* The following fields of the structure are built from
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information gathered from the shared object file itself, and
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are initialized when we actually add it to our symbol tables. */
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bfd *abfd;
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char symbols_loaded; /* flag: symbols read in yet? */
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char from_tty; /* flag: print msgs? */
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struct objfile *objfile; /* objfile for loaded lib */
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struct section_table *sections;
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struct section_table *sections_end;
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struct section_table *textsection;
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};
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struct target_so_ops
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{
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/* Adjust the section binding addresses by the base address at
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which the object was actually mapped. */
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void (*relocate_section_addresses) (struct so_list *so,
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struct section_table *);
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/* Free the the link map info and any other private data
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structures associated with a so_list entry. */
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void (*free_so) (struct so_list *so);
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/* Reset or free private data structures not associated with
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so_list entries. */
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void (*clear_solib) (void);
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/* Target dependent code to run after child process fork. */
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void (*solib_create_inferior_hook) (void);
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/* Do additional symbol handling, lookup, etc. after symbols
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for a shared object have been loaded. */
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void (*special_symbol_handling) (void);
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/* Construct a list of the currently loaded shared objects. */
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struct so_list *(*current_sos) (void);
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/* Find, open, and read the symbols for the main executable. */
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int (*open_symbol_file_object) (void *from_ttyp);
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};
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void free_so (struct so_list *so);
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/* Find solib binary file and open it. */
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extern int solib_open (char *in_pathname, char **found_pathname);
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/* FIXME: gdbarch needs to control this variable */
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extern struct target_so_ops *current_target_so_ops;
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#define TARGET_SO_RELOCATE_SECTION_ADDRESSES \
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(current_target_so_ops->relocate_section_addresses)
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#define TARGET_SO_FREE_SO (current_target_so_ops->free_so)
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#define TARGET_SO_CLEAR_SOLIB (current_target_so_ops->clear_solib)
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#define TARGET_SO_SOLIB_CREATE_INFERIOR_HOOK \
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(current_target_so_ops->solib_create_inferior_hook)
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#define TARGET_SO_SPECIAL_SYMBOL_HANDLING \
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(current_target_so_ops->special_symbol_handling)
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#define TARGET_SO_CURRENT_SOS (current_target_so_ops->current_sos)
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#define TARGET_SO_OPEN_SYMBOL_FILE_OBJECT \
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(current_target_so_ops->open_symbol_file_object)
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