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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [gdb/] [psympriv.h] - Blame information for rev 332

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1 330 jeremybenn
/* Private partial symbol table definitions.
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   Copyright (C) 2009 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 3 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, see <http://www.gnu.org/licenses/>.  */
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#ifndef PSYMPRIV_H
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#define PSYMPRIV_H
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#include "psymtab.h"
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/* A partial_symbol records the name, domain, and address class of
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   symbols whose types we have not parsed yet.  For functions, it also
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   contains their memory address, so we can find them from a PC value.
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   Each partial_symbol sits in a partial_symtab, all of which are chained
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   on a  partial symtab list and which points to the corresponding
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   normal symtab once the partial_symtab has been referenced.  */
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/* This structure is space critical.  See space comments at the top of
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   symtab.h. */
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struct partial_symbol
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{
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  /* The general symbol info required for all types of symbols. */
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  struct general_symbol_info ginfo;
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  /* Name space code.  */
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  ENUM_BITFIELD(domain_enum_tag) domain : 6;
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  /* Address class (for info_symbols) */
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  ENUM_BITFIELD(address_class) aclass : 6;
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};
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#define PSYMBOL_DOMAIN(psymbol) (psymbol)->domain
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#define PSYMBOL_CLASS(psymbol)          (psymbol)->aclass
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/* Each source file that has not been fully read in is represented by
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   a partial_symtab.  This contains the information on where in the
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   executable the debugging symbols for a specific file are, and a
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   list of names of global symbols which are located in this file.
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   They are all chained on partial symtab lists.
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   Even after the source file has been read into a symtab, the
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   partial_symtab remains around.  They are allocated on an obstack,
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   objfile_obstack.  */
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struct partial_symtab
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{
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  /* Chain of all existing partial symtabs.  */
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  struct partial_symtab *next;
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  /* Name of the source file which this partial_symtab defines */
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  char *filename;
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  /* Full path of the source file.  NULL if not known.  */
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  char *fullname;
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  /* Directory in which it was compiled, or NULL if we don't know.  */
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  char *dirname;
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  /* Information about the object file from which symbols should be read.  */
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  struct objfile *objfile;
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  /* Set of relocation offsets to apply to each section.  */
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  struct section_offsets *section_offsets;
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  /* Range of text addresses covered by this file; texthigh is the
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     beginning of the next section. */
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  CORE_ADDR textlow;
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  CORE_ADDR texthigh;
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  /* Array of pointers to all of the partial_symtab's which this one
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     depends on.  Since this array can only be set to previous or
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     the current (?) psymtab, this dependency tree is guaranteed not
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     to have any loops.  "depends on" means that symbols must be read
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     for the dependencies before being read for this psymtab; this is
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     for type references in stabs, where if foo.c includes foo.h, declarations
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     in foo.h may use type numbers defined in foo.c.  For other debugging
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     formats there may be no need to use dependencies.  */
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  struct partial_symtab **dependencies;
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  int number_of_dependencies;
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  /* Global symbol list.  This list will be sorted after readin to
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     improve access.  Binary search will be the usual method of
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     finding a symbol within it. globals_offset is an integer offset
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     within global_psymbols[].  */
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  int globals_offset;
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  int n_global_syms;
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  /* Static symbol list.  This list will *not* be sorted after readin;
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     to find a symbol in it, exhaustive search must be used.  This is
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     reasonable because searches through this list will eventually
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     lead to either the read in of a files symbols for real (assumed
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     to take a *lot* of time; check) or an error (and we don't care
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     how long errors take).  This is an offset and size within
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     static_psymbols[].  */
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  int statics_offset;
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  int n_static_syms;
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  /* Pointer to symtab eventually allocated for this source file, 0 if
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     !readin or if we haven't looked for the symtab after it was readin.  */
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  struct symtab *symtab;
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  /* Pointer to function which will read in the symtab corresponding to
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     this psymtab.  */
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  void (*read_symtab) (struct partial_symtab *);
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  /* Information that lets read_symtab() locate the part of the symbol table
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     that this psymtab corresponds to.  This information is private to the
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     format-dependent symbol reading routines.  For further detail examine
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     the various symbol reading modules.  */
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  void *read_symtab_private;
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  /* Non-zero if the symtab corresponding to this psymtab has been readin */
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  unsigned char readin;
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};
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extern void sort_pst_symbols (struct partial_symtab *);
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/* Traverse all psymtabs in one objfile.  */
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#define ALL_OBJFILE_PSYMTABS(objfile, p) \
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    for ((p) = (objfile) -> psymtabs; (p) != NULL; (p) = (p) -> next)
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/* Traverse all psymtabs in all objfiles.  */
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#define ALL_PSYMTABS(objfile, p) \
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  ALL_OBJFILES (objfile)         \
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    ALL_OBJFILE_PSYMTABS (objfile, p)
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#endif /* PSYMPRIV_H */

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