gdb/hpread.h

   1 /* hpread.h
   2  * Common include file for:
   3  *   hp_symtab_read.c
   4  *   hp_psymtab_read.c
   5  */
   6
   7 /* Copyright 1993, 1996 Free Software Foundation, Inc.
   8
   9    This file is part of GDB.
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 2 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program; if not, write to the Free Software
  23    Foundation, Inc., 59 Temple Place - Suite 330,
  24    Boston, MA 02111-1307, USA.
  25
  26    Written by the Center for Software Science at the University of Utah
  27    and by Cygnus Support.  */
  28
  29 #include "defs.h"
  30 #include "bfd.h"
  31 #include "gdb_string.h"
  32 #include "hp-symtab.h"
  33 #include "syms.h"
  34 #include "symtab.h"
  35 #include "symfile.h"
  36 #include "objfiles.h"
  37 #include "buildsym.h"
  38 #include "complaints.h"
  39 #include "gdb-stabs.h"
  40 #include "gdbtypes.h"
  41 #include "demangle.h"
  42
  43 /* Private information attached to an objfile which we use to find
  44    and internalize the HP C debug symbols within that objfile.  */
  45
  46 struct hpread_symfile_info
  47   {
  48     /* The contents of each of the debug sections (there are 4 of them).  */
  49     char *gntt;
  50     char *lntt;
  51     char *slt;
  52     char *vt;
  53
  54     /* We keep the size of the $VT$ section for range checking.  */
  55     unsigned int vt_size;
  56
  57     /* Some routines still need to know the number of symbols in the
  58        main debug sections ($LNTT$ and $GNTT$). */
  59     unsigned int lntt_symcount;
  60     unsigned int gntt_symcount;
  61
  62     /* To keep track of all the types we've processed.  */
  63     struct type **type_vector;
  64     int type_vector_length;
  65
  66     /* Keeps track of the beginning of a range of source lines.  */
  67     sltpointer sl_index;
  68
  69     /* Some state variables we'll need.  */
  70     int within_function;
  71
  72     /* Keep track of the current function's address.  We may need to look
  73        up something based on this address.  */
  74     unsigned int current_function_value;
  75   };
  76
  77 /* Accessor macros to get at the fields.  */
  78 #define HPUX_SYMFILE_INFO(o) \
  79   ((struct hpread_symfile_info *)((o)->sym_private))
  80 #define GNTT(o)                 (HPUX_SYMFILE_INFO(o)->gntt)
  81 #define LNTT(o)                 (HPUX_SYMFILE_INFO(o)->lntt)
  82 #define SLT(o)                  (HPUX_SYMFILE_INFO(o)->slt)
  83 #define VT(o)                   (HPUX_SYMFILE_INFO(o)->vt)
  84 #define VT_SIZE(o)              (HPUX_SYMFILE_INFO(o)->vt_size)
  85 #define LNTT_SYMCOUNT(o)        (HPUX_SYMFILE_INFO(o)->lntt_symcount)
  86 #define GNTT_SYMCOUNT(o)        (HPUX_SYMFILE_INFO(o)->gntt_symcount)
  87 #define TYPE_VECTOR(o)          (HPUX_SYMFILE_INFO(o)->type_vector)
  88 #define TYPE_VECTOR_LENGTH(o)   (HPUX_SYMFILE_INFO(o)->type_vector_length)
  89 #define SL_INDEX(o)             (HPUX_SYMFILE_INFO(o)->sl_index)
  90 #define WITHIN_FUNCTION(o)      (HPUX_SYMFILE_INFO(o)->within_function)
  91 #define CURRENT_FUNCTION_VALUE(o) (HPUX_SYMFILE_INFO(o)->current_function_value)
  92
  93 /* Given the native debug symbol SYM, set NAMEP to the name associated
  94    with the debug symbol.  Note we may be called with a debug symbol which
  95    has no associated name, in that case we return an empty string.
  96
  97    Also note we "know" that the name for any symbol is always in the
  98    same place.  Hence we don't have to conditionalize on the symbol type.  */
  99 #define SET_NAMESTRING(SYM, NAMEP, OBJFILE) \
 100   if (! hpread_has_name ((SYM)->dblock.kind)) \
 101     *NAMEP = ""; \
 102   else if (((unsigned)(SYM)->dsfile.name) >= VT_SIZE (OBJFILE)) \
 103     { \
 104       complain (&string_table_offset_complaint, (char *) symnum); \
 105       *NAMEP = ""; \
 106     } \
 107   else \
 108     *NAMEP = (SYM)->dsfile.name + VT (OBJFILE)
 109 \f
 110 /* We put a pointer to this structure in the read_symtab_private field
 111    of the psymtab.  */
 112
 113 struct symloc
 114   {
 115     /* The offset within the file symbol table of first local symbol for
 116        this file.  */
 117
 118     int ldsymoff;
 119
 120     /* Length (in bytes) of the section of the symbol table devoted to
 121        this file's symbols (actually, the section bracketed may contain
 122        more than just this file's symbols).  If ldsymlen is 0, the only
 123        reason for this thing's existence is the dependency list.
 124        Nothing else will happen when it is read in.  */
 125
 126     int ldsymlen;
 127   };
 128
 129 #define LDSYMOFF(p) (((struct symloc *)((p)->read_symtab_private))->ldsymoff)
 130 #define LDSYMLEN(p) (((struct symloc *)((p)->read_symtab_private))->ldsymlen)
 131 #define SYMLOC(p) ((struct symloc *)((p)->read_symtab_private))
 132 \f
 133 /* FIXME: Shouldn't this stuff be in a .h file somewhere?  */
 134 /* Nonzero means give verbose info on gdb action.  */
 135 extern int info_verbose;
 136
 137 /* Complaints about the symbols we have encountered.  */
 138 extern struct complaint string_table_offset_complaint;
 139 extern struct complaint lbrac_unmatched_complaint;
 140 extern struct complaint lbrac_mismatch_complaint;
 141
 142 extern union sltentry *hpread_get_slt (int, struct objfile *);
 143
 144 extern union dnttentry *hpread_get_lntt (int, struct objfile *);
 145
 146 int hpread_has_name (enum dntt_entry_type);
 147
 148 /* end of hpread.h */