| 1 | /* BFD COFF object file private structure. |
| 2 | Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc. |
| 3 | Written by Cygnus Support. |
| 4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | |
| 22 | /* Object file tdata; access macros */ |
| 23 | |
| 24 | #define coff_data(bfd) ((bfd)->tdata.coff_obj_data) |
| 25 | #define exec_hdr(bfd) (coff_data(bfd)->hdr) |
| 26 | #define obj_symbols(bfd) (coff_data(bfd)->symbols) |
| 27 | #define obj_sym_filepos(bfd) (coff_data(bfd)->sym_filepos) |
| 28 | |
| 29 | #define obj_relocbase(bfd) (coff_data(bfd)->relocbase) |
| 30 | #define obj_raw_syments(bfd) (coff_data(bfd)->raw_syments) |
| 31 | #define obj_raw_syment_count(bfd) (coff_data(bfd)->raw_syment_count) |
| 32 | #define obj_convert(bfd) (coff_data(bfd)->conversion_table) |
| 33 | #define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size) |
| 34 | #if CFILE_STUFF |
| 35 | #define obj_symbol_slew(bfd) (coff_data(bfd)->symbol_index_slew) |
| 36 | #else |
| 37 | #define obj_symbol_slew(bfd) 0 |
| 38 | #endif |
| 39 | |
| 40 | |
| 41 | /* `Tdata' information kept for COFF files. */ |
| 42 | |
| 43 | typedef struct coff_tdata |
| 44 | { |
| 45 | struct coff_symbol_struct *symbols; /* symtab for input bfd */ |
| 46 | unsigned int *conversion_table; |
| 47 | int conv_table_size; |
| 48 | file_ptr sym_filepos; |
| 49 | |
| 50 | long symbol_index_slew; /* used during read to mark whether a |
| 51 | C_FILE symbol as been added. */ |
| 52 | |
| 53 | struct coff_ptr_struct *raw_syments; |
| 54 | struct lineno *raw_linenos; |
| 55 | unsigned int raw_syment_count; |
| 56 | unsigned short flags; |
| 57 | |
| 58 | /* These are only valid once writing has begun */ |
| 59 | long int relocbase; |
| 60 | |
| 61 | /* These members communicate important constants about the symbol table |
| 62 | to GDB's symbol-reading code. These `constants' unfortunately vary |
| 63 | from coff implementation to implementation... */ |
| 64 | unsigned local_n_btmask; |
| 65 | unsigned local_n_btshft; |
| 66 | unsigned local_n_tmask; |
| 67 | unsigned local_n_tshift; |
| 68 | unsigned local_symesz; |
| 69 | unsigned local_auxesz; |
| 70 | unsigned local_linesz; |
| 71 | } coff_data_type; |
| 72 | |
| 73 | /* We take the address of the first element of a asymbol to ensure that the |
| 74 | * macro is only ever applied to an asymbol. */ |
| 75 | #define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd))) |
| 76 | |
| 77 | /* Functions in coffgen.c. */ |
| 78 | extern bfd_target *coff_object_p PARAMS ((bfd *)); |
| 79 | extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int)); |
| 80 | extern unsigned int coff_get_symtab_upper_bound PARAMS ((bfd *)); |
| 81 | extern unsigned int coff_get_symtab PARAMS ((bfd *, asymbol **)); |
| 82 | extern int coff_count_linenumbers PARAMS ((bfd *)); |
| 83 | extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *)); |
| 84 | extern void coff_renumber_symbols PARAMS ((bfd *)); |
| 85 | extern void coff_mangle_symbols PARAMS ((bfd *)); |
| 86 | extern void coff_write_symbols PARAMS ((bfd *)); |
| 87 | extern void coff_write_linenumbers PARAMS ((bfd *)); |
| 88 | extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *)); |
| 89 | extern asymbol *coff_section_symbol PARAMS ((bfd *, char *)); |
| 90 | extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *)); |
| 91 | extern unsigned int coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr)); |
| 92 | extern asymbol *coff_make_empty_symbol PARAMS ((bfd *)); |
| 93 | extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *, |
| 94 | bfd_print_symbol_type how)); |
| 95 | extern asymbol *coff_make_debug_symbol PARAMS ((bfd *, PTR, unsigned long)); |
| 96 | extern boolean coff_find_nearest_line PARAMS ((bfd *, |
| 97 | asection *, |
| 98 | asymbol **, |
| 99 | bfd_vma offset, |
| 100 | CONST char **filename_ptr, |
| 101 | CONST char **functionname_ptr, |
| 102 | unsigned int *line_ptr)); |
| 103 | extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc)); |
| 104 | extern boolean bfd_coff_reloc16_relax_section PARAMS ((bfd *, |
| 105 | asection *, |
| 106 | asymbol **)); |
| 107 | extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents |
| 108 | PARAMS ((bfd *, struct bfd_seclet *, bfd_byte *, boolean relocateable)); |
| 109 | extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *, |
| 110 | struct bfd_seclet *)); |
| 111 | |
| 112 | /* And more taken from the source .. */ |
| 113 | |
| 114 | typedef struct coff_ptr_struct |
| 115 | { |
| 116 | |
| 117 | /* Remembers the offset from the first symbol in the file for |
| 118 | this symbol. Generated by coff_renumber_symbols. */ |
| 119 | unsigned int offset; |
| 120 | |
| 121 | /* Should the tag field of this symbol be renumbered. |
| 122 | Created by coff_pointerize_aux. */ |
| 123 | char fix_tag; |
| 124 | |
| 125 | /* Should the endidx field of this symbol be renumbered. |
| 126 | Created by coff_pointerize_aux. */ |
| 127 | char fix_end; |
| 128 | |
| 129 | /* The container for the symbol structure as read and translated |
| 130 | from the file. */ |
| 131 | |
| 132 | union { |
| 133 | union internal_auxent auxent; |
| 134 | struct internal_syment syment; |
| 135 | } u; |
| 136 | } combined_entry_type; |
| 137 | |
| 138 | |
| 139 | /* Each canonical asymbol really looks like this: */ |
| 140 | |
| 141 | typedef struct coff_symbol_struct |
| 142 | { |
| 143 | /* The actual symbol which the rest of BFD works with */ |
| 144 | asymbol symbol; |
| 145 | |
| 146 | /* A pointer to the hidden information for this symbol */ |
| 147 | combined_entry_type *native; |
| 148 | |
| 149 | /* A pointer to the linenumber information for this symbol */ |
| 150 | struct lineno_cache_entry *lineno; |
| 151 | |
| 152 | /* Have the line numbers been relocated yet ? */ |
| 153 | boolean done_lineno; |
| 154 | } coff_symbol_type; |
| 155 | typedef struct |
| 156 | { |
| 157 | void (*_bfd_coff_swap_aux_in) PARAMS (( |
| 158 | bfd *abfd , |
| 159 | PTR ext, |
| 160 | int type, |
| 161 | int class , |
| 162 | PTR in)); |
| 163 | |
| 164 | void (*_bfd_coff_swap_sym_in) PARAMS (( |
| 165 | bfd *abfd , |
| 166 | PTR ext, |
| 167 | PTR in)); |
| 168 | |
| 169 | void (*_bfd_coff_swap_lineno_in) PARAMS (( |
| 170 | bfd *abfd, |
| 171 | PTR ext, |
| 172 | PTR in)); |
| 173 | |
| 174 | unsigned int (*_bfd_coff_swap_aux_out) PARAMS (( |
| 175 | bfd *abfd, |
| 176 | PTR in, |
| 177 | int type, |
| 178 | int class, |
| 179 | PTR ext)); |
| 180 | |
| 181 | unsigned int (*_bfd_coff_swap_sym_out) PARAMS (( |
| 182 | bfd *abfd, |
| 183 | PTR in, |
| 184 | PTR ext)); |
| 185 | |
| 186 | unsigned int (*_bfd_coff_swap_lineno_out) PARAMS (( |
| 187 | bfd *abfd, |
| 188 | PTR in, |
| 189 | PTR ext)); |
| 190 | |
| 191 | unsigned int (*_bfd_coff_swap_reloc_out) PARAMS (( |
| 192 | bfd *abfd, |
| 193 | PTR src, |
| 194 | PTR dst)); |
| 195 | |
| 196 | unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS (( |
| 197 | bfd *abfd, |
| 198 | PTR in, |
| 199 | PTR out)); |
| 200 | |
| 201 | unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS (( |
| 202 | bfd *abfd, |
| 203 | PTR in, |
| 204 | PTR out)); |
| 205 | |
| 206 | unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS (( |
| 207 | bfd *abfd, |
| 208 | PTR in, |
| 209 | PTR out)); |
| 210 | |
| 211 | unsigned int _bfd_filhsz; |
| 212 | unsigned int _bfd_aoutsz; |
| 213 | unsigned int _bfd_scnhsz; |
| 214 | unsigned int _bfd_symesz; |
| 215 | unsigned int _bfd_auxesz; |
| 216 | unsigned int _bfd_linesz; |
| 217 | boolean _bfd_coff_long_filenames; |
| 218 | void (*_bfd_coff_swap_filehdr_in) PARAMS (( |
| 219 | bfd *abfd, |
| 220 | PTR ext, |
| 221 | PTR in)); |
| 222 | void (*_bfd_coff_swap_aouthdr_in) PARAMS (( |
| 223 | bfd *abfd, |
| 224 | PTR ext, |
| 225 | PTR in)); |
| 226 | void (*_bfd_coff_swap_scnhdr_in) PARAMS (( |
| 227 | bfd *abfd, |
| 228 | PTR ext, |
| 229 | PTR in)); |
| 230 | boolean (*_bfd_coff_bad_format_hook) PARAMS (( |
| 231 | bfd *abfd, |
| 232 | PTR internal_filehdr)); |
| 233 | boolean (*_bfd_coff_set_arch_mach_hook) PARAMS (( |
| 234 | bfd *abfd, |
| 235 | PTR internal_filehdr)); |
| 236 | PTR (*_bfd_coff_mkobject_hook) PARAMS (( |
| 237 | bfd *abfd, |
| 238 | PTR internal_filehdr, |
| 239 | PTR internal_aouthdr)); |
| 240 | flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( |
| 241 | bfd *abfd, |
| 242 | PTR internal_scnhdr)); |
| 243 | asection *(*_bfd_make_section_hook) PARAMS (( |
| 244 | bfd *abfd, |
| 245 | char *name)); |
| 246 | void (*_bfd_set_alignment_hook) PARAMS (( |
| 247 | bfd *abfd, |
| 248 | asection *sec, |
| 249 | PTR internal_scnhdr)); |
| 250 | boolean (*_bfd_coff_slurp_symbol_table) PARAMS (( |
| 251 | bfd *abfd)); |
| 252 | boolean (*_bfd_coff_symname_in_debug) PARAMS (( |
| 253 | bfd *abfd, |
| 254 | struct internal_syment *sym)); |
| 255 | void (*_bfd_coff_reloc16_extra_cases) PARAMS (( |
| 256 | bfd *abfd, |
| 257 | struct bfd_seclet *seclet, |
| 258 | arelent *reloc, |
| 259 | bfd_byte *data, |
| 260 | unsigned int *src_ptr, |
| 261 | unsigned int *dst_ptr)); |
| 262 | } bfd_coff_backend_data; |
| 263 | |
| 264 | #define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) |
| 265 | |
| 266 | #define bfd_coff_swap_aux_in(a,e,t,c,i) \ |
| 267 | ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,i)) |
| 268 | |
| 269 | #define bfd_coff_swap_sym_in(a,e,i) \ |
| 270 | ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) |
| 271 | |
| 272 | #define bfd_coff_swap_lineno_in(a,e,i) \ |
| 273 | ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) |
| 274 | |
| 275 | #define bfd_coff_swap_reloc_out(abfd, i, o) \ |
| 276 | ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) |
| 277 | |
| 278 | #define bfd_coff_swap_lineno_out(abfd, i, o) \ |
| 279 | ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) |
| 280 | |
| 281 | #define bfd_coff_swap_aux_out(abfd, i, t,c,o) \ |
| 282 | ((coff_backend_info (abfd)->_bfd_coff_swap_aux_out) (abfd, i,t,c, o)) |
| 283 | |
| 284 | #define bfd_coff_swap_sym_out(abfd, i,o) \ |
| 285 | ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) |
| 286 | |
| 287 | #define bfd_coff_swap_scnhdr_out(abfd, i,o) \ |
| 288 | ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) |
| 289 | |
| 290 | #define bfd_coff_swap_filehdr_out(abfd, i,o) \ |
| 291 | ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) |
| 292 | |
| 293 | #define bfd_coff_swap_aouthdr_out(abfd, i,o) \ |
| 294 | ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) |
| 295 | |
| 296 | #define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) |
| 297 | #define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) |
| 298 | #define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) |
| 299 | #define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) |
| 300 | #define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) |
| 301 | #define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) |
| 302 | #define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) |
| 303 | #define bfd_coff_swap_filehdr_in(abfd, i,o) \ |
| 304 | ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) |
| 305 | |
| 306 | #define bfd_coff_swap_aouthdr_in(abfd, i,o) \ |
| 307 | ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) |
| 308 | |
| 309 | #define bfd_coff_swap_scnhdr_in(abfd, i,o) \ |
| 310 | ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) |
| 311 | |
| 312 | #define bfd_coff_bad_format_hook(abfd, filehdr) \ |
| 313 | ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) |
| 314 | |
| 315 | #define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ |
| 316 | ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) |
| 317 | #define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ |
| 318 | ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr)) |
| 319 | |
| 320 | #define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr)\ |
| 321 | ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr)) |
| 322 | |
| 323 | #define bfd_coff_make_section_hook(abfd, name)\ |
| 324 | ((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name)) |
| 325 | |
| 326 | #define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ |
| 327 | ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) |
| 328 | |
| 329 | #define bfd_coff_slurp_symbol_table(abfd)\ |
| 330 | ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) |
| 331 | |
| 332 | #define bfd_coff_symname_in_debug(abfd, sym)\ |
| 333 | ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) |
| 334 | |
| 335 | #define bfd_coff_reloc16_extra_cases(abfd, seclet, reloc, data, src_ptr, dst_ptr)\ |
| 336 | ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ |
| 337 | (abfd, seclet, reloc, data, src_ptr, dst_ptr)) |
| 338 | |