| 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 | \f |
| 172 | EXTERN int os9k_stabs; |
| 173 | \f |
| 174 | /* COFF files can have multiple .stab sections, if they are linked |
| 175 | using --split-by-reloc. This linked list is used to pass the |
| 176 | information into the functions in dbxread.c. */ |
| 177 | struct stab_section_list |
| 178 | { |
| 179 | /* Next in list. */ |
| 180 | struct stab_section_list *next; |
| 181 | |
| 182 | /* Stab section. */ |
| 183 | asection *section; |
| 184 | }; |
| 185 | \f |
| 186 | /* Functions exported by dbxread.c. These are not in stabsread.c because |
| 187 | they are only used by some stabs readers. */ |
| 188 | |
| 189 | extern struct partial_symtab * |
| 190 | start_psymtab PARAMS ((struct objfile *, struct section_offsets *, char *, |
| 191 | CORE_ADDR, int, struct partial_symbol **, |
| 192 | struct partial_symbol **)); |
| 193 | |
| 194 | extern struct partial_symtab * |
| 195 | end_psymtab PARAMS ((struct partial_symtab *pst, |
| 196 | char **include_list, |
| 197 | int num_includes, |
| 198 | int capping_symbol_offset, |
| 199 | CORE_ADDR capping_text, |
| 200 | struct partial_symtab **dependency_list, |
| 201 | int number_dependencies, |
| 202 | int textlow_not_set)); |
| 203 | |
| 204 | extern void |
| 205 | process_one_symbol PARAMS ((int, int, CORE_ADDR, char *, |
| 206 | struct section_offsets *, struct objfile *)); |
| 207 | |
| 208 | extern void elfstab_build_psymtabs |
| 209 | PARAMS ((struct objfile *objfile, |
| 210 | struct section_offsets *section_offsets, |
| 211 | int mainline, |
| 212 | file_ptr staboff, unsigned int stabsize, |
| 213 | file_ptr stabstroffset, |
| 214 | unsigned int stabstrsize)); |
| 215 | |
| 216 | extern void coffstab_build_psymtabs |
| 217 | PARAMS ((struct objfile *objfile, |
| 218 | struct section_offsets *section_offsets, |
| 219 | int mainline, |
| 220 | CORE_ADDR textaddr, unsigned int textsize, |
| 221 | struct stab_section_list *stabs, |
| 222 | file_ptr stabstroffset, |
| 223 | unsigned int stabstrsize)); |
| 224 | |
| 225 | extern void stabsect_build_psymtabs |
| 226 | PARAMS ((struct objfile *objfile, |
| 227 | struct section_offsets *section_offsets, |
| 228 | int mainline, |
| 229 | char *stab_name, |
| 230 | char *stabstr_name, |
| 231 | char *text_name)); |
| 232 | |
| 233 | extern void elfstab_offset_sections PARAMS ((struct objfile *, |
| 234 | struct partial_symtab *)); |
| 235 | |
| 236 | extern void process_later |
| 237 | PARAMS ((struct symbol *, char *, |
| 238 | int (*f) PARAMS ((struct objfile *, struct symbol *, char *)))); |
| 239 | |
| 240 | extern int symbol_reference_defined PARAMS ((char **)); |
| 241 | |
| 242 | extern void ref_add PARAMS ((int, struct symbol *, char *, CORE_ADDR)); |
| 243 | |
| 244 | extern struct symbol * ref_search PARAMS ((int)); |
| 245 | |
| 246 | extern struct symbol * resolve_reference PARAMS ((char *p)); |
| 247 | |
| 248 | extern int resolve_symbol_reference |
| 249 | PARAMS ((struct objfile * objfile, struct symbol * sym, char * p)); |
| 250 | |
| 251 | extern int resolve_cfront_continuation |
| 252 | PARAMS ((struct objfile * objfile, struct symbol * sym, char * p)); |
| 253 | |
| 254 | #undef EXTERN |