236 lines
7.8 KiB
C
236 lines
7.8 KiB
C
/* Definitions for reading symbol files into GDB.
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Copyright (C) 1990, 1991, 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#if !defined (SYMFILE_H)
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#define SYMFILE_H
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/* This file requires that you first include "bfd.h". */
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struct psymbol_allocation_list {
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struct partial_symbol *list;
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struct partial_symbol *next;
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int size;
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};
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/* Structure to keep track of symbol reading functions for various
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object file types. */
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struct sym_fns {
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/* is the name, or name prefix, of the BFD "target type" that this
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set of functions handles. E.g. "a.out" or "sunOs" or "coff" or "elf". */
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char *sym_name;
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/* counts how many bytes of sym_name should be checked against the
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BFD target type of the file being read. If an exact match is
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desired, specify the number of characters in sym_name plus 1 for
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the NULL. If a prefix match is desired, specify the number of
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characters in sym_name. */
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int sym_namelen;
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/* Initializes anything that is global to the entire symbol table. It is
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called during symbol_file_add, when we begin debugging an entirely new
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program. */
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void (*sym_new_init) PARAMS ((struct objfile *));
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/* Reads any initial information from a symbol file, and initializes the
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struct sym_fns SF in preparation for sym_read(). It is called every
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time we read a symbol file for any reason. */
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void (*sym_init) PARAMS ((struct objfile *));
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/* sym_read (objfile, addr, mainline)
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Reads a symbol file into a psymtab (or possibly a symtab).
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OBJFILE is the objfile struct for the file we are reading.
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SECTION_OFFSETS
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are the offset between the file's specified section addresses and
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their true addresses in memory.
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MAINLINE is 1 if this is the
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main symbol table being read, and 0 if a secondary
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symbol file (e.g. shared library or dynamically loaded file)
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is being read. */
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void (*sym_read) PARAMS ((struct objfile *, struct section_offsets *, int));
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/* Called when we are finished with an objfile. Should do all cleanup
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that is specific to the object file format for the particular objfile. */
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void (*sym_finish) PARAMS ((struct objfile *));
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/* This function produces a file-dependent section_offsets structure,
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allocated in the objfile's storage, and based on the parameter.
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The parameter is currently a CORE_ADDR (FIXME!) for backward compatibility
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with the higher levels of GDB. It should probably be changed to
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a string, where NULL means the default, and others are parsed in a file
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dependent way. The result of this function is handed in to sym_read. */
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struct section_offsets *(*sym_offsets) PARAMS ((struct objfile *, CORE_ADDR));
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/* Finds the next struct sym_fns. They are allocated and initialized
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in whatever module implements the functions pointed to; an
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initializer calls add_symtab_fns to add them to the global chain. */
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struct sym_fns *next;
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};
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extern void
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extend_psymbol_list PARAMS ((struct psymbol_allocation_list *,
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struct objfile *));
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/* Add any kind of symbol to a psymbol_allocation_list. */
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#ifndef INLINE_ADD_PSYMBOL
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#define INLINE_ADD_PSYMBOL 1
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#endif
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#if !INLINE_ADD_PSYMBOL
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/* Since one arg is a struct, we have to pass in a ptr and deref it (sigh) */
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#define ADD_PSYMBOL_TO_LIST(name, namelength, namespace, class, list, value, language, objfile) \
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add_psymbol_to_list (name, namelength, namespace, class, &list, value, language, objfile)
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#define ADD_PSYMBOL_ADDR_TO_LIST(name, namelength, namespace, class, list, value, language, objfile) \
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add_psymbol_addr_to_list (name, namelength, namespace, class, &list, value, language, objfile)
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#else /* !INLINE_ADD_PSYMBOL */
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#include "demangle.h"
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#define ADD_PSYMBOL_VT_TO_LIST(NAME,NAMELENGTH,NAMESPACE,CLASS,LIST,VALUE,VT,LANGUAGE, OBJFILE) \
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do { \
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register struct partial_symbol *psym; \
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register char *demangled_name; \
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if ((LIST).next >= (LIST).list + (LIST).size) \
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extend_psymbol_list (&(LIST),(OBJFILE)); \
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psym = (LIST).next++; \
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SYMBOL_NAME (psym) = \
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(char *) obstack_alloc (&objfile->psymbol_obstack, \
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(NAMELENGTH) + 1); \
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memcpy (SYMBOL_NAME (psym), (NAME), (NAMELENGTH)); \
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SYMBOL_NAME (psym)[(NAMELENGTH)] = '\0'; \
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SYMBOL_NAMESPACE (psym) = (NAMESPACE); \
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PSYMBOL_CLASS (psym) = (CLASS); \
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VT (psym) = (VALUE); \
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SYMBOL_LANGUAGE (psym) = (LANGUAGE); \
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SYMBOL_INIT_DEMANGLED_NAME (psym, &objfile->psymbol_obstack); \
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} while (0);
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/* Add a symbol with an integer value to a psymtab. */
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#define ADD_PSYMBOL_TO_LIST(name, namelength, namespace, class, list, value, language, objfile) \
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ADD_PSYMBOL_VT_TO_LIST (name, namelength, namespace, class, list, value, SYMBOL_VALUE, language, objfile)
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/* Add a symbol with a CORE_ADDR value to a psymtab. */
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#define ADD_PSYMBOL_ADDR_TO_LIST(name, namelength, namespace, class, list, value, language, objfile)\
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ADD_PSYMBOL_VT_TO_LIST (name, namelength, namespace, class, list, value, SYMBOL_VALUE_ADDRESS, language, objfile)
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#endif /* INLINE_ADD_PSYMBOL */
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/* Functions */
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extern void
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sort_pst_symbols PARAMS ((struct partial_symtab *));
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extern struct symtab *
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allocate_symtab PARAMS ((char *, struct objfile *));
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extern int
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free_named_symtabs PARAMS ((char *));
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extern void
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fill_in_vptr_fieldno PARAMS ((struct type *));
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extern void
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add_symtab_fns PARAMS ((struct sym_fns *));
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extern void
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init_entry_point_info PARAMS ((struct objfile *));
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extern void
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syms_from_objfile PARAMS ((struct objfile *, CORE_ADDR, int, int));
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extern void
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new_symfile_objfile PARAMS ((struct objfile *, int, int));
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extern struct partial_symtab *
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start_psymtab_common PARAMS ((struct objfile *, struct section_offsets *,
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char *, CORE_ADDR,
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struct partial_symbol *,
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struct partial_symbol *));
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/* Sorting your symbols for fast lookup or alphabetical printing. */
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extern void
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sort_block_syms PARAMS ((struct block *));
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extern void
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sort_symtab_syms PARAMS ((struct symtab *));
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extern void
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sort_all_symtab_syms PARAMS ((void));
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/* Make a copy of the string at PTR with SIZE characters in the symbol obstack
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(and add a null character at the end in the copy).
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Returns the address of the copy. */
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extern char *
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obsavestring PARAMS ((char *, int, struct obstack *));
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/* Concatenate strings S1, S2 and S3; return the new string.
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Space is found in the symbol_obstack. */
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extern char *
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obconcat PARAMS ((struct obstack *obstackp, const char *, const char *,
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const char *));
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/* Variables */
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/* From symfile.c */
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extern struct partial_symtab *
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allocate_psymtab PARAMS ((char *, struct objfile *));
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/* From dwarfread.c */
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extern void
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dwarf_build_psymtabs PARAMS ((struct objfile *, struct section_offsets *, int,
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file_ptr, unsigned int, file_ptr, unsigned int));
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/* From dbxread.c */
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extern void
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elfstab_build_psymtabs PARAMS ((struct objfile *objfile,
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struct section_offsets *section_offsets,
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int mainline,
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file_ptr staboff, unsigned int stabsize,
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file_ptr stabstroffset, unsigned int stabstrsize));
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/* From demangle.c */
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extern void
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set_demangling_style PARAMS ((char *));
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#endif /* !defined(SYMFILE_H) */
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