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/* Shared library declarations for GDB, the GNU Debugger.

   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000,

   2001

   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.  */

#define SO_NAME_MAX_PATH_SIZE 512       /* FIXME: Should be dynamic */

/* Forward declaration for target specific link map information.  This

   struct is opaque to all but the target specific file.  */

struct lm_info;

struct so_list

  {

    /* The following fields of the structure come directly from the

       dynamic linker's tables in the inferior, and are initialized by

       current_sos.  */

    struct so_list *next;       /* next structure in linked list */

    /* A pointer to target specific link map information.  Often this

       will be a copy of struct link_map from the user process, but

       it need not be; it can be any collection of data needed to

       traverse the dynamic linker's data structures. */

    struct lm_info *lm_info;

    /* Shared object file name, exactly as it appears in the

       inferior's link map.  This may be a relative path, or something

       which needs to be looked up in LD_LIBRARY_PATH, etc.  We use it

       to tell which entries in the inferior's dynamic linker's link

       map we've already loaded.  */

    char so_original_name[SO_NAME_MAX_PATH_SIZE];

    /* shared object file name, expanded to something GDB can open */

    char so_name[SO_NAME_MAX_PATH_SIZE];

    /* The following fields of the structure are built from

       information gathered from the shared object file itself, and

       are set when we actually add it to our symbol tables.

       current_sos must initialize these fields to 0.  */

    bfd *abfd;

    char symbols_loaded;        /* flag: symbols read in yet? */

    char from_tty;              /* flag: print msgs? */

    struct objfile *objfile;    /* objfile for loaded lib */

    struct section_table *sections;

    struct section_table *sections_end;

    struct section_table *textsection;

  };

struct target_so_ops

  {

    /* Adjust the section binding addresses by the base address at

       which the object was actually mapped.  */

    void (*relocate_section_addresses) (struct so_list *so,

                                        struct section_table *);

    /* Free the the link map info and any other private data

       structures associated with a so_list entry.  */

    void (*free_so) (struct so_list *so);

    /* Reset or free private data structures not associated with

       so_list entries.  */

    void (*clear_solib) (void);

    /* Target dependent code to run after child process fork.  */

    void (*solib_create_inferior_hook) (void);

    /* Do additional symbol handling, lookup, etc. after symbols

       for a shared object have been loaded.  */

    void (*special_symbol_handling) (void);

    /* Construct a list of the currently loaded shared objects.  */

    struct so_list *(*current_sos) (void);

    /* Find, open, and read the symbols for the main executable.  */

    int (*open_symbol_file_object) (void *from_ttyp);

    /* Determine if PC lies in the dynamic symbol resolution code of

       the run time loader */

    int (*in_dynsym_resolve_code) (CORE_ADDR pc);

  };

void free_so (struct so_list *so);

/* Find solib binary file and open it.  */

extern int solib_open (char *in_pathname, char **found_pathname);

/* FIXME: gdbarch needs to control this variable */

extern struct target_so_ops *current_target_so_ops;

#define TARGET_SO_RELOCATE_SECTION_ADDRESSES \

  (current_target_so_ops->relocate_section_addresses)

#define TARGET_SO_FREE_SO (current_target_so_ops->free_so)

#define TARGET_SO_CLEAR_SOLIB (current_target_so_ops->clear_solib)

#define TARGET_SO_SOLIB_CREATE_INFERIOR_HOOK \

  (current_target_so_ops->solib_create_inferior_hook)

#define TARGET_SO_SPECIAL_SYMBOL_HANDLING \

  (current_target_so_ops->special_symbol_handling)

#define TARGET_SO_CURRENT_SOS (current_target_so_ops->current_sos)

#define TARGET_SO_OPEN_SYMBOL_FILE_OBJECT \

  (current_target_so_ops->open_symbol_file_object)

#define TARGET_SO_IN_DYNSYM_RESOLVE_CODE \

  (current_target_so_ops->in_dynsym_resolve_code)