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- /* Definitions for reading symbol files into GDB.
- Copyright (C) 1990, 1991, 1992 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. */
-
- #if !defined (SYMFILE_H)
- #define SYMFILE_H
-
- /* This file requires that you first include "bfd.h". */
-
- struct psymbol_allocation_list {
- struct partial_symbol *list;
- struct partial_symbol *next;
- int size;
- };
-
- /* Structure to keep track of symbol reading functions for various
- object file types. */
-
- struct sym_fns {
-
- /* 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" or "elf". */
-
- char *sym_name;
-
- /* 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;
-
- /* 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) PARAMS ((struct objfile *));
-
- /* 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) PARAMS ((struct objfile *));
-
- /* sym_read (objfile, addr, mainline)
- Reads a symbol file into a psymtab (or possibly a symtab).
- OBJFILE is the objfile struct for the file we are reading. 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) PARAMS ((struct objfile *, CORE_ADDR, int));
-
- /* Called when we are finished with an objfile. Should do all cleanup
- that is specific to the object file format for the particular objfile. */
-
- void (*sym_finish) PARAMS ((struct objfile *));
-
- /* 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;
-
- };
-
- extern void
- extend_psymbol_list PARAMS ((struct psymbol_allocation_list *,
- struct objfile *));
-
- /* Add any kind of symbol to a psymbol_allocation_list. */
-
- #define ADD_PSYMBOL_VT_TO_LIST(NAME,NAMELENGTH,NAMESPACE,CLASS,LIST,VALUE,VT) \
- do { \
- register struct partial_symbol *psym; \
- if ((LIST).next >= (LIST).list + (LIST).size) \
- extend_psymbol_list (&(LIST),objfile); \
- psym = (LIST).next++; \
- \
- SYMBOL_NAME (psym) = (char *) obstack_alloc (&objfile->psymbol_obstack, \
- (NAMELENGTH) + 1); \
- memcpy (SYMBOL_NAME (psym), (NAME), (NAMELENGTH)); \
- SYMBOL_NAME (psym)[(NAMELENGTH)] = '\0'; \
- SYMBOL_NAMESPACE (psym) = (NAMESPACE); \
- SYMBOL_CLASS (psym) = (CLASS); \
- VT (psym) = (VALUE); \
- } while (0);
-
- #ifdef DEBUG
-
- /* Since one arg is a struct, we have to pass in a ptr and deref it (sigh) */
-
- #define ADD_PSYMBOL_TO_LIST(name, namelength, namespace, class, list, value) \
- add_psymbol_to_list (name, namelength, namespace, class, &list, value)
-
- #define ADD_PSYMBOL_ADDR_TO_LIST(name, namelength, namespace, class, list, value) \
- add_psymbol_addr_to_list (name, namelength, namespace, class, &list, value)
-
- #else /* !DEBUG */
-
- /* Add a symbol with an integer value to a psymtab. */
-
- #define ADD_PSYMBOL_TO_LIST(name, namelength, namespace, class, list, value) \
- ADD_PSYMBOL_VT_TO_LIST (name, namelength, namespace, class, list, value, SYMBOL_VALUE)
-
- /* Add a symbol with a CORE_ADDR value to a psymtab. */
-
- #define ADD_PSYMBOL_ADDR_TO_LIST(name, namelength, namespace, class, list, value)\
- ADD_PSYMBOL_VT_TO_LIST (name, namelength, namespace, class, list, value, SYMBOL_VALUE_ADDRESS)
-
- #endif /* DEBUG */
-
- /* Functions */
-
- extern void
- sort_pst_symbols PARAMS ((struct partial_symtab *));
-
- extern struct symtab *
- allocate_symtab PARAMS ((char *, struct objfile *));
-
- extern int
- free_named_symtabs PARAMS ((char *));
-
- extern void
- fill_in_vptr_fieldno PARAMS ((struct type *));
-
- extern void
- add_symtab_fns PARAMS ((struct sym_fns *));
-
- extern void
- init_entry_point_info PARAMS ((struct objfile *));
-
- extern void
- syms_from_objfile PARAMS ((struct objfile *, CORE_ADDR, int, int));
-
- extern struct partial_symtab *
- start_psymtab_common PARAMS ((struct objfile *, CORE_ADDR, char *, CORE_ADDR,
- struct partial_symbol *,
- struct partial_symbol *));
-
- /* Sorting your symbols for fast lookup or alphabetical printing. */
-
- extern void
- sort_block_syms PARAMS ((struct block *));
-
- extern void
- sort_symtab_syms PARAMS ((struct symtab *));
-
- extern void
- sort_all_symtab_syms PARAMS ((void));
-
- /* 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 PARAMS ((char *, int, struct obstack *));
-
- /* Concatenate strings S1, S2 and S3; return the new string.
- Space is found in the symbol_obstack. */
-
- extern char *
- obconcat PARAMS ((struct obstack *obstackp, const char *, const char *,
- const char *));
-
- /* Variables */
-
- /* 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) */
-
- extern void
- complain PARAMS ((struct complaint *, char *));
-
- extern void
- clear_complaints PARAMS ((int sym_reading, int noisy));
-
- /* From symfile.c */
-
- extern struct partial_symtab *
- allocate_psymtab PARAMS ((char *, struct objfile *));
-
- /* From dwarfread.c */
-
- extern void
- dwarf_build_psymtabs PARAMS ((int, char *, CORE_ADDR, int, unsigned int,
- unsigned int, unsigned int, unsigned int,
- struct objfile *));
-
- #endif /* !defined(SYMFILE_H) */
-