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- /* Definitions for reading symbol files into GDB.
- Copyright (C) 1990 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* This file requires that you first include "bfd.h". */
-
- /* Data structures and function definitions for dealing with
- symbol table reading from files. */
-
- /* Structure to keep track of symbol reading functions for various
- object file types. */
-
- struct sym_fns {
-
- /* sym_name
- is the name, or name prefix, of the BFD "target type" that this
- set of functions handles. E.g. "a.out" or "sunOs" or "coff". */
-
- char *sym_name;
-
- /* sym_namelen
- counts how many bytes of sym_name should be checked against the
- BFD target type of the file being read. If an exact match is
- desired, specify the number of characters in sym_name plus 1 for the
- NUL. If a prefix match is desired, specify the number of characters in
- sym_name. */
-
- int sym_namelen;
-
- /* sym_new_init
- initializes anything that is global to the entire
- symbol table. It is called during symbol_file_add, when
- we begin debugging an entirely new program. */
-
- void (*sym_new_init) ();
-
- /* sym_init (sf)
- reads any initial information from a symbol file, and
- initializes the struct sym_fns SF in preparation for sym_read().
- It is called every time we read a symbol file for any reason. */
-
- void (*sym_init) ();
-
- /* sym_read (sf, addr, mainline)
- reads a symbol file into a psymtab (or possibly a symtab).
- SF is the struct sym_fns that sym_init initialized. ADDR
- is the offset between the file's specified start address and
- its true address in memory. MAINLINE is 1 if this is the
- main symbol table being read, and 0 if a secondary
- symbol file (e.g. shared library or dynamically loaded file)
- is being read. */
-
- void (*sym_read) ();
-
- /* sym_bfd
- is the accessor for the symbol file being read. */
-
- bfd *sym_bfd;
-
- /* sym_private
- is where information can be shared among sym_init and sym_read.
- It is typically a pointer to malloc'd memory. */
-
- char *sym_private; /* Should be void * */
-
- /* next
- finds the next struct sym_fns. They are allocated and initialized
- in whatever module implements the functions pointed to; an
- initializer calls add_symtab_fns to add them to the global chain. */
- struct sym_fns *next;
- };
-
- /* Functions */
-
- extern int free_named_symtabs ();
- extern void fill_in_vptr_fieldno ();
- extern void add_symtab_fns ();
-
- /* Functions for dealing with the misc "function" vector, really a misc
- address<->symbol mapping vector for things we don't have debug symbols
- for. */
-
- extern void init_misc_bunches ();
- extern void prim_record_misc_function ();
- extern void discard_misc_bunches ();
- extern void condense_misc_bunches ();
-
- /* Sorting your symbols for fast lookup or alphabetical printing. */
-
- extern void sort_block_syms ();
- extern void sort_symtab_syms ();
- extern void sort_all_symtab_syms ();
- extern void sort_block_syms ();
-
- /* Make a copy of the string at PTR with SIZE characters in the symbol obstack
- (and add a null character at the end in the copy).
- Returns the address of the copy. */
-
- extern char *obsavestring ();
-
- /* Concatenate strings S1, S2 and S3; return the new string.
- Space is found in the symbol_obstack. */
-
- extern char *obconcat ();
-
- /* Variables */
-
- /* File name symbols were loaded from. */
-
- extern char *symfile;
-
- /* The modification date of the file when they were loaded. */
-
- extern long /* really time_t */ symfile_mtime;
-
- /* Vectors of all partial symbols read in from file. */
-
- extern struct psymbol_allocation_list {
- struct partial_symbol *list, *next;
- int size;
- } global_psymbols, static_psymbols;
-
- /* Support for complaining about things in the symbol file that aren't
- catastrophic.
-
- Each such thing gets a counter. The first time we have the problem,
- during a symbol read, we report it. At the end of symbol reading,
- if verbose, we report how many of each problem we had. */
-
- struct complaint {
- char *message;
- unsigned counter;
- struct complaint *next;
- };
-
- /* Root of the chain of complaints that have at some point been issued.
- This is used to reset the counters, and/or report the total counts. */
-
- extern struct complaint complaint_root[1];
-
- /* Functions that handle complaints. (in symfile.c) */
-
- int complain();
- void clear_complaints();
-