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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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, and
  44    the such LOC_BLOCK symbols use their fields in nonstandard ways.  */
  45
  46 EXTERN struct symbol *global_sym_chain[HASHSIZE];
  47
  48 extern void common_block_start PARAMS ((char *, struct objfile *));
  49 extern void common_block_end PARAMS ((struct objfile *));
  50
  51 /* Kludge for xcoffread.c */
  52
  53 struct pending_stabs
  54 {
  55   int count;
  56   int length;
  57   char *stab[1];
  58 };
  59
  60 EXTERN struct pending_stabs *global_stabs;
  61
  62 /* The type code that process_one_symbol saw on its previous invocation.
  63    Used to detect pairs of N_SO symbols. */
  64
  65 EXTERN int previous_stab_code;
  66 \f
  67 /* Support for Sun changes to dbx symbol format */
  68
  69 /* For each identified header file, we have a table of types defined
  70    in that header file.
  71
  72    header_files maps header file names to their type tables.
  73    It is a vector of n_header_files elements.
  74    Each element describes one header file.
  75    It contains a vector of types.
  76
  77    Sometimes it can happen that the same header file produces
  78    different results when included in different places.
  79    This can result from conditionals or from different
  80    things done before including the file.
  81    When this happens, there are multiple entries for the file in this table,
  82    one entry for each distinct set of results.
  83    The entries are distinguished by the INSTANCE field.
  84    The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
  85    used to match header-file references to their corresponding data.  */
  86
  87 struct header_file
  88 {
  89
  90   /* Name of header file */
  91
  92   char *name;
  93
  94   /* Numeric code distinguishing instances of one header file that produced
  95      different results when included.  It comes from the N_BINCL or N_EXCL. */
  96
  97   int instance;
  98
  99   /* Pointer to vector of types */
 100
 101   struct type **vector;
 102
 103   /* Allocated length (# elts) of that vector */
 104
 105   int length;
 106
 107 };
 108
 109 /* The table of header_files of this OBJFILE. */
 110 #define HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->header_files)
 111
 112 /* The actual length of HEADER_FILES. */
 113 #define N_HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->n_header_files)
 114
 115 /* The allocated lengh of HEADER_FILES. */
 116 #define N_ALLOCATED_HEADER_FILES(OBJFILE) \
 117   (DBX_SYMFILE_INFO (OBJFILE)->n_allocated_header_files)
 118
 119 /* Within each object file, various header files are assigned numbers.
 120    A type is defined or referred to with a pair of numbers
 121    (FILENUM,TYPENUM) where FILENUM is the number of the header file
 122    and TYPENUM is the number within that header file.
 123    TYPENUM is the index within the vector of types for that header file.
 124
 125    FILENUM == 0 is special; it refers to the main source of the object file,
 126    and not to any header file.  FILENUM != 1 is interpreted by looking it up
 127    in the following table, which contains indices in header_files.  */
 128
 129 EXTERN int *this_object_header_files;
 130
 131 EXTERN int n_this_object_header_files;
 132
 133 EXTERN int n_allocated_this_object_header_files;
 134
 135 extern struct complaint unknown_symtype_complaint;
 136 extern struct complaint unknown_symchar_complaint;
 137
 138 extern struct type *
 139 read_type PARAMS ((char **, struct objfile *));
 140
 141 extern void
 142 cleanup_undefined_types PARAMS ((void));
 143
 144 extern struct type **
 145 dbx_lookup_type PARAMS ((int [2]));
 146
 147 extern long
 148 read_number PARAMS ((char **, int));
 149
 150 extern void
 151 add_undefined_type PARAMS ((struct type *));
 152
 153 extern struct symbol *
 154 define_symbol PARAMS ((CORE_ADDR, char *, int, int, struct objfile *));
 155
 156 extern void
 157 stabsread_init PARAMS ((void));
 158
 159 extern void
 160 stabsread_new_init PARAMS ((void));
 161
 162 extern void
 163 start_stabs PARAMS ((void));
 164
 165 extern void
 166 end_stabs PARAMS ((void));
 167
 168 extern void
 169 finish_global_stabs PARAMS ((struct objfile *objfile));
 170
 171 extern void
 172 resolve_cfront_continuation PARAMS((struct objfile * objfile,
 173                 struct symbol * sym, char * p));
 174 \f
 175 EXTERN int os9k_stabs;
 176 \f
 177 /* COFF files can have multiple .stab sections, if they are linked
 178    using --split-by-reloc.  This linked list is used to pass the
 179    information into the functions in dbxread.c.  */
 180 struct stab_section_list
 181 {
 182   /* Next in list.  */
 183   struct stab_section_list *next;
 184
 185   /* Stab section.  */
 186   asection *section;
 187 };
 188 \f
 189 /* Functions exported by dbxread.c.  These are not in stabsread.c because
 190    they are only used by some stabs readers.  */
 191
 192 extern struct partial_symtab *
 193 start_psymtab PARAMS ((struct objfile *, struct section_offsets *, char *,
 194                        CORE_ADDR, int, struct partial_symbol **,
 195                        struct partial_symbol **));
 196
 197 extern struct partial_symtab *
 198 end_psymtab PARAMS ((struct partial_symtab *pst,
 199                      char **include_list,
 200                      int num_includes,
 201                      int capping_symbol_offset,
 202                      CORE_ADDR capping_text,
 203                      struct partial_symtab **dependency_list,
 204                      int number_dependencies,
 205                      int textlow_not_set));
 206
 207 extern void
 208 process_one_symbol PARAMS ((int, int, CORE_ADDR, char *,
 209                             struct section_offsets *, struct objfile *));
 210
 211 extern void elfstab_build_psymtabs
 212   PARAMS ((struct objfile *objfile,
 213            struct section_offsets *section_offsets,
 214            int mainline,
 215            file_ptr staboff, unsigned int stabsize,
 216            file_ptr stabstroffset,
 217            unsigned int stabstrsize));
 218
 219 extern void coffstab_build_psymtabs
 220   PARAMS ((struct objfile *objfile,
 221            struct section_offsets *section_offsets,
 222            int mainline,
 223            CORE_ADDR textaddr, unsigned int textsize,
 224            struct stab_section_list *stabs,
 225            file_ptr stabstroffset,
 226            unsigned int stabstrsize));
 227
 228 extern void stabsect_build_psymtabs
 229   PARAMS ((struct objfile *objfile,
 230            struct section_offsets *section_offsets,
 231            int mainline,
 232            char *stab_name,
 233            char *stabstr_name,
 234            char *text_name));
 235
 236 extern void elfstab_offset_sections PARAMS ((struct objfile *,
 237                                              struct partial_symtab *));
 238
 239 extern void process_later PARAMS ((struct symbol *, char *));
 240
 241 #undef EXTERN