gdb/stabsread.h

   1 /* Include file for stabs debugging format support functions.
   2    Copyright 1986-1991, 1992, 1993 Free Software Foundation, Inc.
   3
   4 This file is part of GDB.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 /* Definitions, prototypes, etc for stabs debugging format support
  21    functions.
  22
  23    Variables declared in this file can be defined by #define-ing
  24    the name EXTERN to null.  It is used to declare variables that
  25    are normally extern, but which get defined in a single module
  26    using this technique.  */
  27
  28 #ifndef EXTERN
  29 #define EXTERN extern
  30 #endif
  31
  32 /* Convert stab register number (from `r' declaration) to a gdb REGNUM.  */
  33
  34 #ifndef STAB_REG_TO_REGNUM
  35 #define STAB_REG_TO_REGNUM(VALUE) (VALUE)
  36 #endif
  37
  38 /* Hash table of global symbols whose values are not known yet.
  39    They are chained thru the SYMBOL_VALUE_CHAIN, since we don't
  40    have the correct data for that slot yet.
  41
  42    The use of the LOC_BLOCK code in this chain is nonstandard--
  43    it refers to a FORTRAN common block rather than the usual meaning.  */
  44
  45 EXTERN struct symbol *global_sym_chain[HASHSIZE];
  46
  47 extern void common_block_start PARAMS ((char *, struct objfile *));
  48 extern void common_block_end PARAMS ((struct objfile *));
  49
  50 /* Kludge for xcoffread.c */
  51
  52 struct pending_stabs
  53 {
  54   int count;
  55   int length;
  56   char *stab[1];
  57 };
  58
  59 EXTERN struct pending_stabs *global_stabs;
  60
  61 /* The type code that process_one_symbol saw on its previous invocation.
  62    Used to detect pairs of N_SO symbols. */
  63
  64 EXTERN int previous_stab_code;
  65 \f
  66 /* Support for Sun changes to dbx symbol format */
  67
  68 /* For each identified header file, we have a table of types defined
  69    in that header file.
  70
  71    header_files maps header file names to their type tables.
  72    It is a vector of n_header_files elements.
  73    Each element describes one header file.
  74    It contains a vector of types.
  75
  76    Sometimes it can happen that the same header file produces
  77    different results when included in different places.
  78    This can result from conditionals or from different
  79    things done before including the file.
  80    When this happens, there are multiple entries for the file in this table,
  81    one entry for each distinct set of results.
  82    The entries are distinguished by the INSTANCE field.
  83    The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
  84    used to match header-file references to their corresponding data.  */
  85
  86 struct header_file
  87 {
  88
  89   /* Name of header file */
  90
  91   char *name;
  92
  93   /* Numeric code distinguishing instances of one header file that produced
  94      different results when included.  It comes from the N_BINCL or N_EXCL. */
  95
  96   int instance;
  97
  98   /* Pointer to vector of types */
  99
 100   struct type **vector;
 101
 102   /* Allocated length (# elts) of that vector */
 103
 104   int length;
 105
 106 };
 107
 108 EXTERN struct header_file *header_files;
 109
 110 EXTERN int n_header_files;
 111
 112 EXTERN int n_allocated_header_files;
 113
 114 /* Within each object file, various header files are assigned numbers.
 115    A type is defined or referred to with a pair of numbers
 116    (FILENUM,TYPENUM) where FILENUM is the number of the header file
 117    and TYPENUM is the number within that header file.
 118    TYPENUM is the index within the vector of types for that header file.
 119
 120    FILENUM == 1 is special; it refers to the main source of the object file,
 121    and not to any header file.  FILENUM != 1 is interpreted by looking it up
 122    in the following table, which contains indices in header_files.  */
 123
 124 EXTERN int *this_object_header_files;
 125
 126 EXTERN int n_this_object_header_files;
 127
 128 EXTERN int n_allocated_this_object_header_files;
 129
 130 extern struct complaint unknown_symtype_complaint;
 131 extern struct complaint unknown_symchar_complaint;
 132
 133 extern struct type *
 134 read_type PARAMS ((char **, struct objfile *));
 135
 136 extern void
 137 cleanup_undefined_types PARAMS ((void));
 138
 139 extern struct type **
 140 dbx_lookup_type PARAMS ((int [2]));
 141
 142 extern long
 143 read_number PARAMS ((char **, int));
 144
 145 extern void
 146 add_undefined_type PARAMS ((struct type *));
 147
 148 extern struct symbol *
 149 define_symbol PARAMS ((CORE_ADDR, char *, int, int, struct objfile *));
 150
 151 extern void
 152 stabsread_init PARAMS ((void));
 153
 154 extern void
 155 stabsread_new_init PARAMS ((void));
 156
 157 extern void
 158 start_stabs PARAMS ((void));
 159
 160 extern void
 161 end_stabs PARAMS ((void));
 162
 163 extern void
 164 finish_global_stabs PARAMS ((struct objfile *objfile));
 165 \f
 166 EXTERN int os9k_stabs;
 167 \f
 168 /* Functions exported by dbxread.c.  These are not in stabsread.h because
 169    they are only used by some stabs readers.  */
 170
 171 extern struct partial_symtab *
 172 start_psymtab PARAMS ((struct objfile *, struct section_offsets *, char *,
 173                        CORE_ADDR, int, struct partial_symbol *,
 174                        struct partial_symbol *));
 175
 176 extern struct partial_symtab *
 177 end_psymtab PARAMS ((struct partial_symtab *, char **, int, int, CORE_ADDR,
 178                      struct partial_symtab **, int));
 179
 180 extern void
 181 process_one_symbol PARAMS ((int, int, CORE_ADDR, char *,
 182                             struct section_offsets *, struct objfile *));
 183
 184 extern void elfstab_build_psymtabs
 185   PARAMS ((struct objfile *objfile,
 186            struct section_offsets *section_offsets,
 187            int mainline,
 188            file_ptr staboff, unsigned int stabsize,
 189            file_ptr stabstroffset,
 190            unsigned int stabstrsize));
 191
 192 extern void coffstab_build_psymtabs
 193   PARAMS ((struct objfile *objfile,
 194            struct section_offsets *section_offsets,
 195            int mainline,
 196            file_ptr staboff, unsigned int stabsize,
 197            file_ptr stabstroffset,
 198            unsigned int stabstrsize));
 199
 200 extern void elfstab_offset_sections PARAMS ((struct objfile *,
 201                                              struct partial_symtab *));
 202
 203 extern void
 204 pastab_build_psymtabs PARAMS ((struct objfile *, struct section_offsets *,
 205                                int));
 206
 207 #undef EXTERN