| 1 | /* Routines to link ECOFF debugging information. |
| 2 | Copyright 1993, 1994, 1995, 1996, 1997, 2000, 2001 |
| 3 | Free Software Foundation, Inc. |
| 4 | Written by Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>. |
| 5 | |
| 6 | This file is part of BFD, the Binary File Descriptor library. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #include "bfd.h" |
| 23 | #include "sysdep.h" |
| 24 | #include "bfdlink.h" |
| 25 | #include "libbfd.h" |
| 26 | #include "objalloc.h" |
| 27 | #include "aout/stab_gnu.h" |
| 28 | #include "coff/internal.h" |
| 29 | #include "coff/sym.h" |
| 30 | #include "coff/symconst.h" |
| 31 | #include "coff/ecoff.h" |
| 32 | #include "libcoff.h" |
| 33 | #include "libecoff.h" |
| 34 | \f |
| 35 | static boolean ecoff_add_bytes PARAMS ((char **buf, char **bufend, |
| 36 | size_t need)); |
| 37 | static struct bfd_hash_entry *string_hash_newfunc |
| 38 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, |
| 39 | const char *)); |
| 40 | static void ecoff_align_debug PARAMS ((bfd *abfd, |
| 41 | struct ecoff_debug_info *debug, |
| 42 | const struct ecoff_debug_swap *swap)); |
| 43 | static boolean ecoff_write_symhdr PARAMS ((bfd *, struct ecoff_debug_info *, |
| 44 | const struct ecoff_debug_swap *, |
| 45 | file_ptr where)); |
| 46 | static int cmp_fdrtab_entry PARAMS ((const PTR, const PTR)); |
| 47 | static boolean mk_fdrtab PARAMS ((bfd *, |
| 48 | struct ecoff_debug_info * const, |
| 49 | const struct ecoff_debug_swap * const, |
| 50 | struct ecoff_find_line *)); |
| 51 | static long fdrtab_lookup PARAMS ((struct ecoff_find_line *, bfd_vma)); |
| 52 | static boolean lookup_line |
| 53 | PARAMS ((bfd *, struct ecoff_debug_info * const, |
| 54 | const struct ecoff_debug_swap * const, struct ecoff_find_line *)); |
| 55 | \f |
| 56 | /* Routines to swap auxiliary information in and out. I am assuming |
| 57 | that the auxiliary information format is always going to be target |
| 58 | independent. */ |
| 59 | |
| 60 | /* Swap in a type information record. |
| 61 | BIGEND says whether AUX symbols are big-endian or little-endian; this |
| 62 | info comes from the file header record (fh-fBigendian). */ |
| 63 | |
| 64 | void |
| 65 | _bfd_ecoff_swap_tir_in (bigend, ext_copy, intern) |
| 66 | int bigend; |
| 67 | const struct tir_ext *ext_copy; |
| 68 | TIR *intern; |
| 69 | { |
| 70 | struct tir_ext ext[1]; |
| 71 | |
| 72 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ |
| 73 | |
| 74 | /* now the fun stuff... */ |
| 75 | if (bigend) { |
| 76 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_BIG); |
| 77 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_BIG); |
| 78 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_BIG) |
| 79 | >> TIR_BITS1_BT_SH_BIG; |
| 80 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_BIG) |
| 81 | >> TIR_BITS_TQ4_SH_BIG; |
| 82 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_BIG) |
| 83 | >> TIR_BITS_TQ5_SH_BIG; |
| 84 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_BIG) |
| 85 | >> TIR_BITS_TQ0_SH_BIG; |
| 86 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_BIG) |
| 87 | >> TIR_BITS_TQ1_SH_BIG; |
| 88 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_BIG) |
| 89 | >> TIR_BITS_TQ2_SH_BIG; |
| 90 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_BIG) |
| 91 | >> TIR_BITS_TQ3_SH_BIG; |
| 92 | } else { |
| 93 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_LITTLE); |
| 94 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_LITTLE); |
| 95 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_LITTLE) |
| 96 | >> TIR_BITS1_BT_SH_LITTLE; |
| 97 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_LITTLE) |
| 98 | >> TIR_BITS_TQ4_SH_LITTLE; |
| 99 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_LITTLE) |
| 100 | >> TIR_BITS_TQ5_SH_LITTLE; |
| 101 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_LITTLE) |
| 102 | >> TIR_BITS_TQ0_SH_LITTLE; |
| 103 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_LITTLE) |
| 104 | >> TIR_BITS_TQ1_SH_LITTLE; |
| 105 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_LITTLE) |
| 106 | >> TIR_BITS_TQ2_SH_LITTLE; |
| 107 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_LITTLE) |
| 108 | >> TIR_BITS_TQ3_SH_LITTLE; |
| 109 | } |
| 110 | |
| 111 | #ifdef TEST |
| 112 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) |
| 113 | abort (); |
| 114 | #endif |
| 115 | } |
| 116 | |
| 117 | /* Swap out a type information record. |
| 118 | BIGEND says whether AUX symbols are big-endian or little-endian; this |
| 119 | info comes from the file header record (fh-fBigendian). */ |
| 120 | |
| 121 | void |
| 122 | _bfd_ecoff_swap_tir_out (bigend, intern_copy, ext) |
| 123 | int bigend; |
| 124 | const TIR *intern_copy; |
| 125 | struct tir_ext *ext; |
| 126 | { |
| 127 | TIR intern[1]; |
| 128 | |
| 129 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ |
| 130 | |
| 131 | /* now the fun stuff... */ |
| 132 | if (bigend) { |
| 133 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_BIG : 0) |
| 134 | | (intern->continued ? TIR_BITS1_CONTINUED_BIG : 0) |
| 135 | | ((intern->bt << TIR_BITS1_BT_SH_BIG) |
| 136 | & TIR_BITS1_BT_BIG)); |
| 137 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_BIG) |
| 138 | & TIR_BITS_TQ4_BIG) |
| 139 | | ((intern->tq5 << TIR_BITS_TQ5_SH_BIG) |
| 140 | & TIR_BITS_TQ5_BIG)); |
| 141 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_BIG) |
| 142 | & TIR_BITS_TQ0_BIG) |
| 143 | | ((intern->tq1 << TIR_BITS_TQ1_SH_BIG) |
| 144 | & TIR_BITS_TQ1_BIG)); |
| 145 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_BIG) |
| 146 | & TIR_BITS_TQ2_BIG) |
| 147 | | ((intern->tq3 << TIR_BITS_TQ3_SH_BIG) |
| 148 | & TIR_BITS_TQ3_BIG)); |
| 149 | } else { |
| 150 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_LITTLE : 0) |
| 151 | | (intern->continued ? TIR_BITS1_CONTINUED_LITTLE : 0) |
| 152 | | ((intern->bt << TIR_BITS1_BT_SH_LITTLE) |
| 153 | & TIR_BITS1_BT_LITTLE)); |
| 154 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_LITTLE) |
| 155 | & TIR_BITS_TQ4_LITTLE) |
| 156 | | ((intern->tq5 << TIR_BITS_TQ5_SH_LITTLE) |
| 157 | & TIR_BITS_TQ5_LITTLE)); |
| 158 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_LITTLE) |
| 159 | & TIR_BITS_TQ0_LITTLE) |
| 160 | | ((intern->tq1 << TIR_BITS_TQ1_SH_LITTLE) |
| 161 | & TIR_BITS_TQ1_LITTLE)); |
| 162 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_LITTLE) |
| 163 | & TIR_BITS_TQ2_LITTLE) |
| 164 | | ((intern->tq3 << TIR_BITS_TQ3_SH_LITTLE) |
| 165 | & TIR_BITS_TQ3_LITTLE)); |
| 166 | } |
| 167 | |
| 168 | #ifdef TEST |
| 169 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) |
| 170 | abort (); |
| 171 | #endif |
| 172 | } |
| 173 | |
| 174 | /* Swap in a relative symbol record. BIGEND says whether it is in |
| 175 | big-endian or little-endian format.*/ |
| 176 | |
| 177 | void |
| 178 | _bfd_ecoff_swap_rndx_in (bigend, ext_copy, intern) |
| 179 | int bigend; |
| 180 | const struct rndx_ext *ext_copy; |
| 181 | RNDXR *intern; |
| 182 | { |
| 183 | struct rndx_ext ext[1]; |
| 184 | |
| 185 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ |
| 186 | |
| 187 | /* now the fun stuff... */ |
| 188 | if (bigend) { |
| 189 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_BIG) |
| 190 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_BIG) |
| 191 | >> RNDX_BITS1_RFD_SH_BIG); |
| 192 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_BIG) |
| 193 | << RNDX_BITS1_INDEX_SH_LEFT_BIG) |
| 194 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_BIG) |
| 195 | | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_BIG); |
| 196 | } else { |
| 197 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_LITTLE) |
| 198 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_LITTLE) |
| 199 | << RNDX_BITS1_RFD_SH_LEFT_LITTLE); |
| 200 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_LITTLE) |
| 201 | >> RNDX_BITS1_INDEX_SH_LITTLE) |
| 202 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_LITTLE) |
| 203 | | ((unsigned int) ext->r_bits[3] |
| 204 | << RNDX_BITS3_INDEX_SH_LEFT_LITTLE); |
| 205 | } |
| 206 | |
| 207 | #ifdef TEST |
| 208 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) |
| 209 | abort (); |
| 210 | #endif |
| 211 | } |
| 212 | |
| 213 | /* Swap out a relative symbol record. BIGEND says whether it is in |
| 214 | big-endian or little-endian format.*/ |
| 215 | |
| 216 | void |
| 217 | _bfd_ecoff_swap_rndx_out (bigend, intern_copy, ext) |
| 218 | int bigend; |
| 219 | const RNDXR *intern_copy; |
| 220 | struct rndx_ext *ext; |
| 221 | { |
| 222 | RNDXR intern[1]; |
| 223 | |
| 224 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ |
| 225 | |
| 226 | /* now the fun stuff... */ |
| 227 | if (bigend) { |
| 228 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_BIG; |
| 229 | ext->r_bits[1] = (((intern->rfd << RNDX_BITS1_RFD_SH_BIG) |
| 230 | & RNDX_BITS1_RFD_BIG) |
| 231 | | ((intern->index >> RNDX_BITS1_INDEX_SH_LEFT_BIG) |
| 232 | & RNDX_BITS1_INDEX_BIG)); |
| 233 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_BIG; |
| 234 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_BIG; |
| 235 | } else { |
| 236 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_LITTLE; |
| 237 | ext->r_bits[1] = (((intern->rfd >> RNDX_BITS1_RFD_SH_LEFT_LITTLE) |
| 238 | & RNDX_BITS1_RFD_LITTLE) |
| 239 | | ((intern->index << RNDX_BITS1_INDEX_SH_LITTLE) |
| 240 | & RNDX_BITS1_INDEX_LITTLE)); |
| 241 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_LITTLE; |
| 242 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_LITTLE; |
| 243 | } |
| 244 | |
| 245 | #ifdef TEST |
| 246 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) |
| 247 | abort (); |
| 248 | #endif |
| 249 | } |
| 250 | \f |
| 251 | /* The minimum amount of data to allocate. */ |
| 252 | #define ALLOC_SIZE (4064) |
| 253 | |
| 254 | /* Add bytes to a buffer. Return success. */ |
| 255 | |
| 256 | static boolean |
| 257 | ecoff_add_bytes (buf, bufend, need) |
| 258 | char **buf; |
| 259 | char **bufend; |
| 260 | size_t need; |
| 261 | { |
| 262 | size_t have; |
| 263 | size_t want; |
| 264 | char *newbuf; |
| 265 | |
| 266 | have = *bufend - *buf; |
| 267 | if (have > need) |
| 268 | want = ALLOC_SIZE; |
| 269 | else |
| 270 | { |
| 271 | want = need - have; |
| 272 | if (want < ALLOC_SIZE) |
| 273 | want = ALLOC_SIZE; |
| 274 | } |
| 275 | newbuf = (char *) bfd_realloc (*buf, (bfd_size_type) have + want); |
| 276 | if (newbuf == NULL) |
| 277 | return false; |
| 278 | *buf = newbuf; |
| 279 | *bufend = *buf + have + want; |
| 280 | return true; |
| 281 | } |
| 282 | |
| 283 | /* We keep a hash table which maps strings to numbers. We use it to |
| 284 | map FDR names to indices in the output file, and to map local |
| 285 | strings when combining stabs debugging information. */ |
| 286 | |
| 287 | struct string_hash_entry |
| 288 | { |
| 289 | struct bfd_hash_entry root; |
| 290 | /* FDR index or string table offset. */ |
| 291 | long val; |
| 292 | /* Next entry in string table. */ |
| 293 | struct string_hash_entry *next; |
| 294 | }; |
| 295 | |
| 296 | struct string_hash_table |
| 297 | { |
| 298 | struct bfd_hash_table table; |
| 299 | }; |
| 300 | |
| 301 | /* Routine to create an entry in a string hash table. */ |
| 302 | |
| 303 | static struct bfd_hash_entry * |
| 304 | string_hash_newfunc (entry, table, string) |
| 305 | struct bfd_hash_entry *entry; |
| 306 | struct bfd_hash_table *table; |
| 307 | const char *string; |
| 308 | { |
| 309 | struct string_hash_entry *ret = (struct string_hash_entry *) entry; |
| 310 | |
| 311 | /* Allocate the structure if it has not already been allocated by a |
| 312 | subclass. */ |
| 313 | if (ret == (struct string_hash_entry *) NULL) |
| 314 | ret = ((struct string_hash_entry *) |
| 315 | bfd_hash_allocate (table, sizeof (struct string_hash_entry))); |
| 316 | if (ret == (struct string_hash_entry *) NULL) |
| 317 | return NULL; |
| 318 | |
| 319 | /* Call the allocation method of the superclass. */ |
| 320 | ret = ((struct string_hash_entry *) |
| 321 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); |
| 322 | |
| 323 | if (ret) |
| 324 | { |
| 325 | /* Initialize the local fields. */ |
| 326 | ret->val = -1; |
| 327 | ret->next = NULL; |
| 328 | } |
| 329 | |
| 330 | return (struct bfd_hash_entry *) ret; |
| 331 | } |
| 332 | |
| 333 | /* Look up an entry in an string hash table. */ |
| 334 | |
| 335 | #define string_hash_lookup(t, string, create, copy) \ |
| 336 | ((struct string_hash_entry *) \ |
| 337 | bfd_hash_lookup (&(t)->table, (string), (create), (copy))) |
| 338 | |
| 339 | /* We can't afford to read in all the debugging information when we do |
| 340 | a link. Instead, we build a list of these structures to show how |
| 341 | different parts of the input file map to the output file. */ |
| 342 | |
| 343 | struct shuffle |
| 344 | { |
| 345 | /* The next entry in this linked list. */ |
| 346 | struct shuffle *next; |
| 347 | /* The length of the information. */ |
| 348 | unsigned long size; |
| 349 | /* Whether this information comes from a file or not. */ |
| 350 | boolean filep; |
| 351 | union |
| 352 | { |
| 353 | struct |
| 354 | { |
| 355 | /* The BFD the data comes from. */ |
| 356 | bfd *input_bfd; |
| 357 | /* The offset within input_bfd. */ |
| 358 | file_ptr offset; |
| 359 | } file; |
| 360 | /* The data to be written out. */ |
| 361 | PTR memory; |
| 362 | } u; |
| 363 | }; |
| 364 | |
| 365 | /* This structure holds information across calls to |
| 366 | bfd_ecoff_debug_accumulate. */ |
| 367 | |
| 368 | struct accumulate |
| 369 | { |
| 370 | /* The FDR hash table. */ |
| 371 | struct string_hash_table fdr_hash; |
| 372 | /* The strings hash table. */ |
| 373 | struct string_hash_table str_hash; |
| 374 | /* Linked lists describing how to shuffle the input debug |
| 375 | information into the output file. We keep a pointer to both the |
| 376 | head and the tail. */ |
| 377 | struct shuffle *line; |
| 378 | struct shuffle *line_end; |
| 379 | struct shuffle *pdr; |
| 380 | struct shuffle *pdr_end; |
| 381 | struct shuffle *sym; |
| 382 | struct shuffle *sym_end; |
| 383 | struct shuffle *opt; |
| 384 | struct shuffle *opt_end; |
| 385 | struct shuffle *aux; |
| 386 | struct shuffle *aux_end; |
| 387 | struct shuffle *ss; |
| 388 | struct shuffle *ss_end; |
| 389 | struct string_hash_entry *ss_hash; |
| 390 | struct string_hash_entry *ss_hash_end; |
| 391 | struct shuffle *fdr; |
| 392 | struct shuffle *fdr_end; |
| 393 | struct shuffle *rfd; |
| 394 | struct shuffle *rfd_end; |
| 395 | /* The size of the largest file shuffle. */ |
| 396 | unsigned long largest_file_shuffle; |
| 397 | /* An objalloc for debugging information. */ |
| 398 | struct objalloc *memory; |
| 399 | }; |
| 400 | |
| 401 | /* Add a file entry to a shuffle list. */ |
| 402 | |
| 403 | static boolean add_file_shuffle PARAMS ((struct accumulate *, |
| 404 | struct shuffle **, |
| 405 | struct shuffle **, bfd *, file_ptr, |
| 406 | unsigned long)); |
| 407 | |
| 408 | static boolean |
| 409 | add_file_shuffle (ainfo, head, tail, input_bfd, offset, size) |
| 410 | struct accumulate *ainfo; |
| 411 | struct shuffle **head; |
| 412 | struct shuffle **tail; |
| 413 | bfd *input_bfd; |
| 414 | file_ptr offset; |
| 415 | unsigned long size; |
| 416 | { |
| 417 | struct shuffle *n; |
| 418 | |
| 419 | if (*tail != (struct shuffle *) NULL |
| 420 | && (*tail)->filep |
| 421 | && (*tail)->u.file.input_bfd == input_bfd |
| 422 | && (*tail)->u.file.offset + (*tail)->size == (unsigned long) offset) |
| 423 | { |
| 424 | /* Just merge this entry onto the existing one. */ |
| 425 | (*tail)->size += size; |
| 426 | if ((*tail)->size > ainfo->largest_file_shuffle) |
| 427 | ainfo->largest_file_shuffle = (*tail)->size; |
| 428 | return true; |
| 429 | } |
| 430 | |
| 431 | n = (struct shuffle *) objalloc_alloc (ainfo->memory, |
| 432 | sizeof (struct shuffle)); |
| 433 | if (!n) |
| 434 | { |
| 435 | bfd_set_error (bfd_error_no_memory); |
| 436 | return false; |
| 437 | } |
| 438 | n->next = NULL; |
| 439 | n->size = size; |
| 440 | n->filep = true; |
| 441 | n->u.file.input_bfd = input_bfd; |
| 442 | n->u.file.offset = offset; |
| 443 | if (*head == (struct shuffle *) NULL) |
| 444 | *head = n; |
| 445 | if (*tail != (struct shuffle *) NULL) |
| 446 | (*tail)->next = n; |
| 447 | *tail = n; |
| 448 | if (size > ainfo->largest_file_shuffle) |
| 449 | ainfo->largest_file_shuffle = size; |
| 450 | return true; |
| 451 | } |
| 452 | |
| 453 | /* Add a memory entry to a shuffle list. */ |
| 454 | |
| 455 | static boolean add_memory_shuffle PARAMS ((struct accumulate *, |
| 456 | struct shuffle **head, |
| 457 | struct shuffle **tail, |
| 458 | bfd_byte *data, unsigned long size)); |
| 459 | |
| 460 | static boolean |
| 461 | add_memory_shuffle (ainfo, head, tail, data, size) |
| 462 | struct accumulate *ainfo; |
| 463 | struct shuffle **head; |
| 464 | struct shuffle **tail; |
| 465 | bfd_byte *data; |
| 466 | unsigned long size; |
| 467 | { |
| 468 | struct shuffle *n; |
| 469 | |
| 470 | n = (struct shuffle *) objalloc_alloc (ainfo->memory, |
| 471 | sizeof (struct shuffle)); |
| 472 | if (!n) |
| 473 | { |
| 474 | bfd_set_error (bfd_error_no_memory); |
| 475 | return false; |
| 476 | } |
| 477 | n->next = NULL; |
| 478 | n->size = size; |
| 479 | n->filep = false; |
| 480 | n->u.memory = (PTR) data; |
| 481 | if (*head == (struct shuffle *) NULL) |
| 482 | *head = n; |
| 483 | if (*tail != (struct shuffle *) NULL) |
| 484 | (*tail)->next = n; |
| 485 | *tail = n; |
| 486 | return true; |
| 487 | } |
| 488 | |
| 489 | /* Initialize the FDR hash table. This returns a handle which is then |
| 490 | passed in to bfd_ecoff_debug_accumulate, et. al. */ |
| 491 | |
| 492 | PTR |
| 493 | bfd_ecoff_debug_init (output_bfd, output_debug, output_swap, info) |
| 494 | bfd *output_bfd ATTRIBUTE_UNUSED; |
| 495 | struct ecoff_debug_info *output_debug; |
| 496 | const struct ecoff_debug_swap *output_swap ATTRIBUTE_UNUSED; |
| 497 | struct bfd_link_info *info; |
| 498 | { |
| 499 | struct accumulate *ainfo; |
| 500 | bfd_size_type amt = sizeof (struct accumulate); |
| 501 | |
| 502 | ainfo = (struct accumulate *) bfd_malloc (amt); |
| 503 | if (!ainfo) |
| 504 | return NULL; |
| 505 | if (! bfd_hash_table_init_n (&ainfo->fdr_hash.table, string_hash_newfunc, |
| 506 | 1021)) |
| 507 | return NULL; |
| 508 | |
| 509 | ainfo->line = NULL; |
| 510 | ainfo->line_end = NULL; |
| 511 | ainfo->pdr = NULL; |
| 512 | ainfo->pdr_end = NULL; |
| 513 | ainfo->sym = NULL; |
| 514 | ainfo->sym_end = NULL; |
| 515 | ainfo->opt = NULL; |
| 516 | ainfo->opt_end = NULL; |
| 517 | ainfo->aux = NULL; |
| 518 | ainfo->aux_end = NULL; |
| 519 | ainfo->ss = NULL; |
| 520 | ainfo->ss_end = NULL; |
| 521 | ainfo->ss_hash = NULL; |
| 522 | ainfo->ss_hash_end = NULL; |
| 523 | ainfo->fdr = NULL; |
| 524 | ainfo->fdr_end = NULL; |
| 525 | ainfo->rfd = NULL; |
| 526 | ainfo->rfd_end = NULL; |
| 527 | |
| 528 | ainfo->largest_file_shuffle = 0; |
| 529 | |
| 530 | if (! info->relocateable) |
| 531 | { |
| 532 | if (! bfd_hash_table_init (&ainfo->str_hash.table, string_hash_newfunc)) |
| 533 | return NULL; |
| 534 | |
| 535 | /* The first entry in the string table is the empty string. */ |
| 536 | output_debug->symbolic_header.issMax = 1; |
| 537 | } |
| 538 | |
| 539 | ainfo->memory = objalloc_create (); |
| 540 | if (ainfo->memory == NULL) |
| 541 | { |
| 542 | bfd_set_error (bfd_error_no_memory); |
| 543 | return NULL; |
| 544 | } |
| 545 | |
| 546 | return (PTR) ainfo; |
| 547 | } |
| 548 | |
| 549 | /* Free the accumulated debugging information. */ |
| 550 | |
| 551 | void |
| 552 | bfd_ecoff_debug_free (handle, output_bfd, output_debug, output_swap, info) |
| 553 | PTR handle; |
| 554 | bfd *output_bfd ATTRIBUTE_UNUSED; |
| 555 | struct ecoff_debug_info *output_debug ATTRIBUTE_UNUSED; |
| 556 | const struct ecoff_debug_swap *output_swap ATTRIBUTE_UNUSED; |
| 557 | struct bfd_link_info *info; |
| 558 | { |
| 559 | struct accumulate *ainfo = (struct accumulate *) handle; |
| 560 | |
| 561 | bfd_hash_table_free (&ainfo->fdr_hash.table); |
| 562 | |
| 563 | if (! info->relocateable) |
| 564 | bfd_hash_table_free (&ainfo->str_hash.table); |
| 565 | |
| 566 | objalloc_free (ainfo->memory); |
| 567 | |
| 568 | free (ainfo); |
| 569 | } |
| 570 | |
| 571 | /* Accumulate the debugging information from INPUT_BFD into |
| 572 | OUTPUT_BFD. The INPUT_DEBUG argument points to some ECOFF |
| 573 | debugging information which we want to link into the information |
| 574 | pointed to by the OUTPUT_DEBUG argument. OUTPUT_SWAP and |
| 575 | INPUT_SWAP point to the swapping information needed. INFO is the |
| 576 | linker information structure. HANDLE is returned by |
| 577 | bfd_ecoff_debug_init. */ |
| 578 | |
| 579 | boolean |
| 580 | bfd_ecoff_debug_accumulate (handle, output_bfd, output_debug, output_swap, |
| 581 | input_bfd, input_debug, input_swap, |
| 582 | info) |
| 583 | PTR handle; |
| 584 | bfd *output_bfd; |
| 585 | struct ecoff_debug_info *output_debug; |
| 586 | const struct ecoff_debug_swap *output_swap; |
| 587 | bfd *input_bfd; |
| 588 | struct ecoff_debug_info *input_debug; |
| 589 | const struct ecoff_debug_swap *input_swap; |
| 590 | struct bfd_link_info *info; |
| 591 | { |
| 592 | struct accumulate *ainfo = (struct accumulate *) handle; |
| 593 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) |
| 594 | = input_swap->swap_sym_in; |
| 595 | void (* const swap_rfd_in) PARAMS ((bfd *, PTR, RFDT *)) |
| 596 | = input_swap->swap_rfd_in; |
| 597 | void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR)) |
| 598 | = output_swap->swap_sym_out; |
| 599 | void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR)) |
| 600 | = output_swap->swap_fdr_out; |
| 601 | void (* const swap_rfd_out) PARAMS ((bfd *, const RFDT *, PTR)) |
| 602 | = output_swap->swap_rfd_out; |
| 603 | bfd_size_type external_pdr_size = output_swap->external_pdr_size; |
| 604 | bfd_size_type external_sym_size = output_swap->external_sym_size; |
| 605 | bfd_size_type external_opt_size = output_swap->external_opt_size; |
| 606 | bfd_size_type external_fdr_size = output_swap->external_fdr_size; |
| 607 | bfd_size_type external_rfd_size = output_swap->external_rfd_size; |
| 608 | HDRR * const output_symhdr = &output_debug->symbolic_header; |
| 609 | HDRR * const input_symhdr = &input_debug->symbolic_header; |
| 610 | bfd_vma section_adjust[scMax]; |
| 611 | asection *sec; |
| 612 | bfd_byte *fdr_start; |
| 613 | bfd_byte *fdr_ptr; |
| 614 | bfd_byte *fdr_end; |
| 615 | bfd_size_type fdr_add; |
| 616 | unsigned int copied; |
| 617 | RFDT i; |
| 618 | unsigned long sz; |
| 619 | bfd_byte *rfd_out; |
| 620 | bfd_byte *rfd_in; |
| 621 | bfd_byte *rfd_end; |
| 622 | long newrfdbase = 0; |
| 623 | long oldrfdbase = 0; |
| 624 | bfd_byte *fdr_out; |
| 625 | bfd_size_type amt; |
| 626 | |
| 627 | /* Use section_adjust to hold the value to add to a symbol in a |
| 628 | particular section. */ |
| 629 | memset ((PTR) section_adjust, 0, sizeof section_adjust); |
| 630 | |
| 631 | #define SET(name, indx) \ |
| 632 | sec = bfd_get_section_by_name (input_bfd, name); \ |
| 633 | if (sec != NULL) \ |
| 634 | section_adjust[indx] = (sec->output_section->vma \ |
| 635 | + sec->output_offset \ |
| 636 | - sec->vma); |
| 637 | |
| 638 | SET (".text", scText); |
| 639 | SET (".data", scData); |
| 640 | SET (".bss", scBss); |
| 641 | SET (".sdata", scSData); |
| 642 | SET (".sbss", scSBss); |
| 643 | /* scRdata section may be either .rdata or .rodata. */ |
| 644 | SET (".rdata", scRData); |
| 645 | SET (".rodata", scRData); |
| 646 | SET (".init", scInit); |
| 647 | SET (".fini", scFini); |
| 648 | SET (".rconst", scRConst); |
| 649 | |
| 650 | #undef SET |
| 651 | |
| 652 | /* Find all the debugging information based on the FDR's. We need |
| 653 | to handle them whether they are swapped or not. */ |
| 654 | if (input_debug->fdr != (FDR *) NULL) |
| 655 | { |
| 656 | fdr_start = (bfd_byte *) input_debug->fdr; |
| 657 | fdr_add = sizeof (FDR); |
| 658 | } |
| 659 | else |
| 660 | { |
| 661 | fdr_start = (bfd_byte *) input_debug->external_fdr; |
| 662 | fdr_add = input_swap->external_fdr_size; |
| 663 | } |
| 664 | fdr_end = fdr_start + input_symhdr->ifdMax * fdr_add; |
| 665 | |
| 666 | amt = input_symhdr->ifdMax; |
| 667 | amt *= sizeof (RFDT); |
| 668 | input_debug->ifdmap = (RFDT *) bfd_alloc (input_bfd, amt); |
| 669 | |
| 670 | sz = (input_symhdr->crfd + input_symhdr->ifdMax) * external_rfd_size; |
| 671 | rfd_out = (bfd_byte *) objalloc_alloc (ainfo->memory, sz); |
| 672 | if (!input_debug->ifdmap || !rfd_out) |
| 673 | { |
| 674 | bfd_set_error (bfd_error_no_memory); |
| 675 | return false; |
| 676 | } |
| 677 | if (!add_memory_shuffle (ainfo, &ainfo->rfd, &ainfo->rfd_end, rfd_out, sz)) |
| 678 | return false; |
| 679 | |
| 680 | copied = 0; |
| 681 | |
| 682 | /* Look through the FDR's to see which ones we are going to include |
| 683 | in the final output. We do not want duplicate FDR information |
| 684 | for header files, because ECOFF debugging is often very large. |
| 685 | When we find an FDR with no line information which can be merged, |
| 686 | we look it up in a hash table to ensure that we only include it |
| 687 | once. We keep a table mapping FDR numbers to the final number |
| 688 | they get with the BFD, so that we can refer to it when we write |
| 689 | out the external symbols. */ |
| 690 | for (fdr_ptr = fdr_start, i = 0; |
| 691 | fdr_ptr < fdr_end; |
| 692 | fdr_ptr += fdr_add, i++, rfd_out += external_rfd_size) |
| 693 | { |
| 694 | FDR fdr; |
| 695 | |
| 696 | if (input_debug->fdr != (FDR *) NULL) |
| 697 | fdr = *(FDR *) fdr_ptr; |
| 698 | else |
| 699 | (*input_swap->swap_fdr_in) (input_bfd, (PTR) fdr_ptr, &fdr); |
| 700 | |
| 701 | /* See if this FDR can be merged with an existing one. */ |
| 702 | if (fdr.cbLine == 0 && fdr.rss != -1 && fdr.fMerge) |
| 703 | { |
| 704 | const char *name; |
| 705 | char *lookup; |
| 706 | struct string_hash_entry *fh; |
| 707 | |
| 708 | /* We look up a string formed from the file name and the |
| 709 | number of symbols and aux entries. Sometimes an include |
| 710 | file will conditionally define a typedef or something |
| 711 | based on the order of include files. Using the number of |
| 712 | symbols and aux entries as a hash reduces the chance that |
| 713 | we will merge symbol information that should not be |
| 714 | merged. */ |
| 715 | name = input_debug->ss + fdr.issBase + fdr.rss; |
| 716 | |
| 717 | lookup = (char *) bfd_malloc ((bfd_size_type) strlen (name) + 20); |
| 718 | if (lookup == NULL) |
| 719 | return false; |
| 720 | sprintf (lookup, "%s %lx %lx", name, fdr.csym, fdr.caux); |
| 721 | |
| 722 | fh = string_hash_lookup (&ainfo->fdr_hash, lookup, true, true); |
| 723 | free (lookup); |
| 724 | if (fh == (struct string_hash_entry *) NULL) |
| 725 | return false; |
| 726 | |
| 727 | if (fh->val != -1) |
| 728 | { |
| 729 | input_debug->ifdmap[i] = fh->val; |
| 730 | (*swap_rfd_out) (output_bfd, input_debug->ifdmap + i, |
| 731 | (PTR) rfd_out); |
| 732 | |
| 733 | /* Don't copy this FDR. */ |
| 734 | continue; |
| 735 | } |
| 736 | |
| 737 | fh->val = output_symhdr->ifdMax + copied; |
| 738 | } |
| 739 | |
| 740 | input_debug->ifdmap[i] = output_symhdr->ifdMax + copied; |
| 741 | (*swap_rfd_out) (output_bfd, input_debug->ifdmap + i, (PTR) rfd_out); |
| 742 | ++copied; |
| 743 | } |
| 744 | |
| 745 | newrfdbase = output_symhdr->crfd; |
| 746 | output_symhdr->crfd += input_symhdr->ifdMax; |
| 747 | |
| 748 | /* Copy over any existing RFD's. RFD's are only created by the |
| 749 | linker, so this will only happen for input files which are the |
| 750 | result of a partial link. */ |
| 751 | rfd_in = (bfd_byte *) input_debug->external_rfd; |
| 752 | rfd_end = rfd_in + input_symhdr->crfd * input_swap->external_rfd_size; |
| 753 | for (; |
| 754 | rfd_in < rfd_end; |
| 755 | rfd_in += input_swap->external_rfd_size) |
| 756 | { |
| 757 | RFDT rfd; |
| 758 | |
| 759 | (*swap_rfd_in) (input_bfd, (PTR) rfd_in, &rfd); |
| 760 | BFD_ASSERT (rfd >= 0 && rfd < input_symhdr->ifdMax); |
| 761 | rfd = input_debug->ifdmap[rfd]; |
| 762 | (*swap_rfd_out) (output_bfd, &rfd, (PTR) rfd_out); |
| 763 | rfd_out += external_rfd_size; |
| 764 | } |
| 765 | |
| 766 | oldrfdbase = output_symhdr->crfd; |
| 767 | output_symhdr->crfd += input_symhdr->crfd; |
| 768 | |
| 769 | /* Look through the FDR's and copy over all associated debugging |
| 770 | information. */ |
| 771 | sz = copied * external_fdr_size; |
| 772 | fdr_out = (bfd_byte *) objalloc_alloc (ainfo->memory, sz); |
| 773 | if (!fdr_out) |
| 774 | { |
| 775 | bfd_set_error (bfd_error_no_memory); |
| 776 | return false; |
| 777 | } |
| 778 | if (!add_memory_shuffle (ainfo, &ainfo->fdr, &ainfo->fdr_end, fdr_out, sz)) |
| 779 | return false; |
| 780 | for (fdr_ptr = fdr_start, i = 0; |
| 781 | fdr_ptr < fdr_end; |
| 782 | fdr_ptr += fdr_add, i++) |
| 783 | { |
| 784 | FDR fdr; |
| 785 | bfd_vma fdr_adr; |
| 786 | bfd_byte *sym_out; |
| 787 | bfd_byte *lraw_src; |
| 788 | bfd_byte *lraw_end; |
| 789 | boolean fgotfilename; |
| 790 | |
| 791 | if (input_debug->ifdmap[i] < output_symhdr->ifdMax) |
| 792 | { |
| 793 | /* We are not copying this FDR. */ |
| 794 | continue; |
| 795 | } |
| 796 | |
| 797 | if (input_debug->fdr != (FDR *) NULL) |
| 798 | fdr = *(FDR *) fdr_ptr; |
| 799 | else |
| 800 | (*input_swap->swap_fdr_in) (input_bfd, (PTR) fdr_ptr, &fdr); |
| 801 | |
| 802 | fdr_adr = fdr.adr; |
| 803 | |
| 804 | /* Adjust the FDR address for any changes that may have been |
| 805 | made by relaxing. */ |
| 806 | if (input_debug->adjust != (struct ecoff_value_adjust *) NULL) |
| 807 | { |
| 808 | struct ecoff_value_adjust *adjust; |
| 809 | |
| 810 | for (adjust = input_debug->adjust; |
| 811 | adjust != (struct ecoff_value_adjust *) NULL; |
| 812 | adjust = adjust->next) |
| 813 | if (fdr_adr >= adjust->start |
| 814 | && fdr_adr < adjust->end) |
| 815 | fdr.adr += adjust->adjust; |
| 816 | } |
| 817 | |
| 818 | /* FIXME: It is conceivable that this FDR points to the .init or |
| 819 | .fini section, in which case this will not do the right |
| 820 | thing. */ |
| 821 | fdr.adr += section_adjust[scText]; |
| 822 | |
| 823 | /* Swap in the local symbols, adjust their values, and swap them |
| 824 | out again. */ |
| 825 | fgotfilename = false; |
| 826 | sz = fdr.csym * external_sym_size; |
| 827 | sym_out = (bfd_byte *) objalloc_alloc (ainfo->memory, sz); |
| 828 | if (!sym_out) |
| 829 | { |
| 830 | bfd_set_error (bfd_error_no_memory); |
| 831 | return false; |
| 832 | } |
| 833 | if (!add_memory_shuffle (ainfo, &ainfo->sym, &ainfo->sym_end, sym_out, |
| 834 | sz)) |
| 835 | return false; |
| 836 | lraw_src = ((bfd_byte *) input_debug->external_sym |
| 837 | + fdr.isymBase * input_swap->external_sym_size); |
| 838 | lraw_end = lraw_src + fdr.csym * input_swap->external_sym_size; |
| 839 | for (; lraw_src < lraw_end; lraw_src += input_swap->external_sym_size) |
| 840 | { |
| 841 | SYMR internal_sym; |
| 842 | |
| 843 | (*swap_sym_in) (input_bfd, (PTR) lraw_src, &internal_sym); |
| 844 | |
| 845 | BFD_ASSERT (internal_sym.sc != scCommon |
| 846 | && internal_sym.sc != scSCommon); |
| 847 | |
| 848 | /* Adjust the symbol value if appropriate. */ |
| 849 | switch (internal_sym.st) |
| 850 | { |
| 851 | case stNil: |
| 852 | if (ECOFF_IS_STAB (&internal_sym)) |
| 853 | break; |
| 854 | /* Fall through. */ |
| 855 | case stGlobal: |
| 856 | case stStatic: |
| 857 | case stLabel: |
| 858 | case stProc: |
| 859 | case stStaticProc: |
| 860 | if (input_debug->adjust != (struct ecoff_value_adjust *) NULL) |
| 861 | { |
| 862 | bfd_vma value; |
| 863 | struct ecoff_value_adjust *adjust; |
| 864 | |
| 865 | value = internal_sym.value; |
| 866 | for (adjust = input_debug->adjust; |
| 867 | adjust != (struct ecoff_value_adjust *) NULL; |
| 868 | adjust = adjust->next) |
| 869 | if (value >= adjust->start |
| 870 | && value < adjust->end) |
| 871 | internal_sym.value += adjust->adjust; |
| 872 | } |
| 873 | internal_sym.value += section_adjust[internal_sym.sc]; |
| 874 | break; |
| 875 | |
| 876 | default: |
| 877 | break; |
| 878 | } |
| 879 | |
| 880 | /* If we are doing a final link, we hash all the strings in |
| 881 | the local symbol table together. This reduces the amount |
| 882 | of space required by debugging information. We don't do |
| 883 | this when performing a relocateable link because it would |
| 884 | prevent us from easily merging different FDR's. */ |
| 885 | if (! info->relocateable) |
| 886 | { |
| 887 | boolean ffilename; |
| 888 | const char *name; |
| 889 | |
| 890 | if (! fgotfilename && internal_sym.iss == fdr.rss) |
| 891 | ffilename = true; |
| 892 | else |
| 893 | ffilename = false; |
| 894 | |
| 895 | /* Hash the name into the string table. */ |
| 896 | name = input_debug->ss + fdr.issBase + internal_sym.iss; |
| 897 | if (*name == '\0') |
| 898 | internal_sym.iss = 0; |
| 899 | else |
| 900 | { |
| 901 | struct string_hash_entry *sh; |
| 902 | |
| 903 | sh = string_hash_lookup (&ainfo->str_hash, name, true, true); |
| 904 | if (sh == (struct string_hash_entry *) NULL) |
| 905 | return false; |
| 906 | if (sh->val == -1) |
| 907 | { |
| 908 | sh->val = output_symhdr->issMax; |
| 909 | output_symhdr->issMax += strlen (name) + 1; |
| 910 | if (ainfo->ss_hash == (struct string_hash_entry *) NULL) |
| 911 | ainfo->ss_hash = sh; |
| 912 | if (ainfo->ss_hash_end |
| 913 | != (struct string_hash_entry *) NULL) |
| 914 | ainfo->ss_hash_end->next = sh; |
| 915 | ainfo->ss_hash_end = sh; |
| 916 | } |
| 917 | internal_sym.iss = sh->val; |
| 918 | } |
| 919 | |
| 920 | if (ffilename) |
| 921 | { |
| 922 | fdr.rss = internal_sym.iss; |
| 923 | fgotfilename = true; |
| 924 | } |
| 925 | } |
| 926 | |
| 927 | (*swap_sym_out) (output_bfd, &internal_sym, sym_out); |
| 928 | sym_out += external_sym_size; |
| 929 | } |
| 930 | |
| 931 | fdr.isymBase = output_symhdr->isymMax; |
| 932 | output_symhdr->isymMax += fdr.csym; |
| 933 | |
| 934 | /* Copy the information that does not need swapping. */ |
| 935 | |
| 936 | /* FIXME: If we are relaxing, we need to adjust the line |
| 937 | numbers. Frankly, forget it. Anybody using stabs debugging |
| 938 | information will not use this line number information, and |
| 939 | stabs are adjusted correctly. */ |
| 940 | if (fdr.cbLine > 0) |
| 941 | { |
| 942 | file_ptr pos = input_symhdr->cbLineOffset + fdr.cbLineOffset; |
| 943 | if (!add_file_shuffle (ainfo, &ainfo->line, &ainfo->line_end, |
| 944 | input_bfd, pos, (unsigned long) fdr.cbLine)) |
| 945 | return false; |
| 946 | fdr.ilineBase = output_symhdr->ilineMax; |
| 947 | fdr.cbLineOffset = output_symhdr->cbLine; |
| 948 | output_symhdr->ilineMax += fdr.cline; |
| 949 | output_symhdr->cbLine += fdr.cbLine; |
| 950 | } |
| 951 | if (fdr.caux > 0) |
| 952 | { |
| 953 | file_ptr pos = (input_symhdr->cbAuxOffset |
| 954 | + fdr.iauxBase * sizeof (union aux_ext)); |
| 955 | if (!add_file_shuffle (ainfo, &ainfo->aux, &ainfo->aux_end, |
| 956 | input_bfd, pos, |
| 957 | fdr.caux * sizeof (union aux_ext))) |
| 958 | return false; |
| 959 | fdr.iauxBase = output_symhdr->iauxMax; |
| 960 | output_symhdr->iauxMax += fdr.caux; |
| 961 | } |
| 962 | if (! info->relocateable) |
| 963 | { |
| 964 | |
| 965 | /* When are are hashing strings, we lie about the number of |
| 966 | strings attached to each FDR. We need to set cbSs |
| 967 | because some versions of dbx apparently use it to decide |
| 968 | how much of the string table to read in. */ |
| 969 | fdr.issBase = 0; |
| 970 | fdr.cbSs = output_symhdr->issMax; |
| 971 | } |
| 972 | else if (fdr.cbSs > 0) |
| 973 | { |
| 974 | file_ptr pos = input_symhdr->cbSsOffset + fdr.issBase; |
| 975 | if (!add_file_shuffle (ainfo, &ainfo->ss, &ainfo->ss_end, |
| 976 | input_bfd, pos, (unsigned long) fdr.cbSs)) |
| 977 | return false; |
| 978 | fdr.issBase = output_symhdr->issMax; |
| 979 | output_symhdr->issMax += fdr.cbSs; |
| 980 | } |
| 981 | |
| 982 | if ((output_bfd->xvec->header_byteorder |
| 983 | == input_bfd->xvec->header_byteorder) |
| 984 | && input_debug->adjust == (struct ecoff_value_adjust *) NULL) |
| 985 | { |
| 986 | /* The two BFD's have the same endianness, and we don't have |
| 987 | to adjust the PDR addresses, so simply copying the |
| 988 | information will suffice. */ |
| 989 | BFD_ASSERT (external_pdr_size == input_swap->external_pdr_size); |
| 990 | if (fdr.cpd > 0) |
| 991 | { |
| 992 | file_ptr pos = (input_symhdr->cbPdOffset |
| 993 | + fdr.ipdFirst * external_pdr_size); |
| 994 | unsigned long size = fdr.cpd * external_pdr_size; |
| 995 | if (!add_file_shuffle (ainfo, &ainfo->pdr, &ainfo->pdr_end, |
| 996 | input_bfd, pos, size)) |
| 997 | return false; |
| 998 | } |
| 999 | BFD_ASSERT (external_opt_size == input_swap->external_opt_size); |
| 1000 | if (fdr.copt > 0) |
| 1001 | { |
| 1002 | file_ptr pos = (input_symhdr->cbOptOffset |
| 1003 | + fdr.ioptBase * external_opt_size); |
| 1004 | unsigned long size = fdr.copt * external_opt_size; |
| 1005 | if (!add_file_shuffle (ainfo, &ainfo->opt, &ainfo->opt_end, |
| 1006 | input_bfd, pos, size)) |
| 1007 | return false; |
| 1008 | } |
| 1009 | } |
| 1010 | else |
| 1011 | { |
| 1012 | bfd_size_type outsz, insz; |
| 1013 | bfd_byte *in; |
| 1014 | bfd_byte *end; |
| 1015 | bfd_byte *out; |
| 1016 | |
| 1017 | /* The two BFD's have different endianness, so we must swap |
| 1018 | everything in and out. This code would always work, but |
| 1019 | it would be unnecessarily slow in the normal case. */ |
| 1020 | outsz = external_pdr_size; |
| 1021 | insz = input_swap->external_pdr_size; |
| 1022 | in = ((bfd_byte *) input_debug->external_pdr |
| 1023 | + fdr.ipdFirst * insz); |
| 1024 | end = in + fdr.cpd * insz; |
| 1025 | sz = fdr.cpd * outsz; |
| 1026 | out = (bfd_byte *) objalloc_alloc (ainfo->memory, sz); |
| 1027 | if (!out) |
| 1028 | { |
| 1029 | bfd_set_error (bfd_error_no_memory); |
| 1030 | return false; |
| 1031 | } |
| 1032 | if (!add_memory_shuffle (ainfo, &ainfo->pdr, &ainfo->pdr_end, out, |
| 1033 | sz)) |
| 1034 | return false; |
| 1035 | for (; in < end; in += insz, out += outsz) |
| 1036 | { |
| 1037 | PDR pdr; |
| 1038 | |
| 1039 | (*input_swap->swap_pdr_in) (input_bfd, (PTR) in, &pdr); |
| 1040 | |
| 1041 | /* If we have been relaxing, we may have to adjust the |
| 1042 | address. */ |
| 1043 | if (input_debug->adjust != (struct ecoff_value_adjust *) NULL) |
| 1044 | { |
| 1045 | bfd_vma adr; |
| 1046 | struct ecoff_value_adjust *adjust; |
| 1047 | |
| 1048 | adr = fdr_adr + pdr.adr; |
| 1049 | for (adjust = input_debug->adjust; |
| 1050 | adjust != (struct ecoff_value_adjust *) NULL; |
| 1051 | adjust = adjust->next) |
| 1052 | if (adr >= adjust->start |
| 1053 | && adr < adjust->end) |
| 1054 | pdr.adr += adjust->adjust; |
| 1055 | } |
| 1056 | |
| 1057 | (*output_swap->swap_pdr_out) (output_bfd, &pdr, (PTR) out); |
| 1058 | } |
| 1059 | |
| 1060 | /* Swap over the optimization information. */ |
| 1061 | outsz = external_opt_size; |
| 1062 | insz = input_swap->external_opt_size; |
| 1063 | in = ((bfd_byte *) input_debug->external_opt |
| 1064 | + fdr.ioptBase * insz); |
| 1065 | end = in + fdr.copt * insz; |
| 1066 | sz = fdr.copt * outsz; |
| 1067 | out = (bfd_byte *) objalloc_alloc (ainfo->memory, sz); |
| 1068 | if (!out) |
| 1069 | { |
| 1070 | bfd_set_error (bfd_error_no_memory); |
| 1071 | return false; |
| 1072 | } |
| 1073 | if (!add_memory_shuffle (ainfo, &ainfo->opt, &ainfo->opt_end, out, |
| 1074 | sz)) |
| 1075 | return false; |
| 1076 | for (; in < end; in += insz, out += outsz) |
| 1077 | { |
| 1078 | OPTR opt; |
| 1079 | |
| 1080 | (*input_swap->swap_opt_in) (input_bfd, (PTR) in, &opt); |
| 1081 | (*output_swap->swap_opt_out) (output_bfd, &opt, (PTR) out); |
| 1082 | } |
| 1083 | } |
| 1084 | |
| 1085 | fdr.ipdFirst = output_symhdr->ipdMax; |
| 1086 | output_symhdr->ipdMax += fdr.cpd; |
| 1087 | fdr.ioptBase = output_symhdr->ioptMax; |
| 1088 | output_symhdr->ioptMax += fdr.copt; |
| 1089 | |
| 1090 | if (fdr.crfd <= 0) |
| 1091 | { |
| 1092 | /* Point this FDR at the table of RFD's we created. */ |
| 1093 | fdr.rfdBase = newrfdbase; |
| 1094 | fdr.crfd = input_symhdr->ifdMax; |
| 1095 | } |
| 1096 | else |
| 1097 | { |
| 1098 | /* Point this FDR at the remapped RFD's. */ |
| 1099 | fdr.rfdBase += oldrfdbase; |
| 1100 | } |
| 1101 | |
| 1102 | (*swap_fdr_out) (output_bfd, &fdr, fdr_out); |
| 1103 | fdr_out += external_fdr_size; |
| 1104 | ++output_symhdr->ifdMax; |
| 1105 | } |
| 1106 | |
| 1107 | return true; |
| 1108 | } |
| 1109 | |
| 1110 | /* Add a string to the debugging information we are accumulating. |
| 1111 | Return the offset from the fdr string base. */ |
| 1112 | |
| 1113 | static long ecoff_add_string PARAMS ((struct accumulate *, |
| 1114 | struct bfd_link_info *, |
| 1115 | struct ecoff_debug_info *, |
| 1116 | FDR *fdr, const char *string)); |
| 1117 | |
| 1118 | static long |
| 1119 | ecoff_add_string (ainfo, info, debug, fdr, string) |
| 1120 | struct accumulate *ainfo; |
| 1121 | struct bfd_link_info *info; |
| 1122 | struct ecoff_debug_info *debug; |
| 1123 | FDR *fdr; |
| 1124 | const char *string; |
| 1125 | { |
| 1126 | HDRR *symhdr; |
| 1127 | size_t len; |
| 1128 | bfd_size_type ret; |
| 1129 | |
| 1130 | symhdr = &debug->symbolic_header; |
| 1131 | len = strlen (string); |
| 1132 | if (info->relocateable) |
| 1133 | { |
| 1134 | if (!add_memory_shuffle (ainfo, &ainfo->ss, &ainfo->ss_end, (PTR) string, |
| 1135 | len + 1)) |
| 1136 | return -1; |
| 1137 | ret = symhdr->issMax; |
| 1138 | symhdr->issMax += len + 1; |
| 1139 | fdr->cbSs += len + 1; |
| 1140 | } |
| 1141 | else |
| 1142 | { |
| 1143 | struct string_hash_entry *sh; |
| 1144 | |
| 1145 | sh = string_hash_lookup (&ainfo->str_hash, string, true, true); |
| 1146 | if (sh == (struct string_hash_entry *) NULL) |
| 1147 | return -1; |
| 1148 | if (sh->val == -1) |
| 1149 | { |
| 1150 | sh->val = symhdr->issMax; |
| 1151 | symhdr->issMax += len + 1; |
| 1152 | if (ainfo->ss_hash == (struct string_hash_entry *) NULL) |
| 1153 | ainfo->ss_hash = sh; |
| 1154 | if (ainfo->ss_hash_end |
| 1155 | != (struct string_hash_entry *) NULL) |
| 1156 | ainfo->ss_hash_end->next = sh; |
| 1157 | ainfo->ss_hash_end = sh; |
| 1158 | } |
| 1159 | ret = sh->val; |
| 1160 | } |
| 1161 | |
| 1162 | return ret; |
| 1163 | } |
| 1164 | |
| 1165 | /* Add debugging information from a non-ECOFF file. */ |
| 1166 | |
| 1167 | boolean |
| 1168 | bfd_ecoff_debug_accumulate_other (handle, output_bfd, output_debug, |
| 1169 | output_swap, input_bfd, info) |
| 1170 | PTR handle; |
| 1171 | bfd *output_bfd; |
| 1172 | struct ecoff_debug_info *output_debug; |
| 1173 | const struct ecoff_debug_swap *output_swap; |
| 1174 | bfd *input_bfd; |
| 1175 | struct bfd_link_info *info; |
| 1176 | { |
| 1177 | struct accumulate *ainfo = (struct accumulate *) handle; |
| 1178 | void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR)) |
| 1179 | = output_swap->swap_sym_out; |
| 1180 | HDRR *output_symhdr = &output_debug->symbolic_header; |
| 1181 | FDR fdr; |
| 1182 | asection *sec; |
| 1183 | asymbol **symbols; |
| 1184 | asymbol **sym_ptr; |
| 1185 | asymbol **sym_end; |
| 1186 | long symsize; |
| 1187 | long symcount; |
| 1188 | PTR external_fdr; |
| 1189 | |
| 1190 | memset ((PTR) &fdr, 0, sizeof fdr); |
| 1191 | |
| 1192 | sec = bfd_get_section_by_name (input_bfd, ".text"); |
| 1193 | if (sec != NULL) |
| 1194 | fdr.adr = sec->output_section->vma + sec->output_offset; |
| 1195 | else |
| 1196 | { |
| 1197 | /* FIXME: What about .init or .fini? */ |
| 1198 | fdr.adr = 0; |
| 1199 | } |
| 1200 | |
| 1201 | fdr.issBase = output_symhdr->issMax; |
| 1202 | fdr.cbSs = 0; |
| 1203 | fdr.rss = ecoff_add_string (ainfo, info, output_debug, &fdr, |
| 1204 | bfd_archive_filename (input_bfd)); |
| 1205 | if (fdr.rss == -1) |
| 1206 | return false; |
| 1207 | fdr.isymBase = output_symhdr->isymMax; |
| 1208 | |
| 1209 | /* Get the local symbols from the input BFD. */ |
| 1210 | symsize = bfd_get_symtab_upper_bound (input_bfd); |
| 1211 | if (symsize < 0) |
| 1212 | return false; |
| 1213 | symbols = (asymbol **) bfd_alloc (output_bfd, (bfd_size_type) symsize); |
| 1214 | if (symbols == (asymbol **) NULL) |
| 1215 | return false; |
| 1216 | symcount = bfd_canonicalize_symtab (input_bfd, symbols); |
| 1217 | if (symcount < 0) |
| 1218 | return false; |
| 1219 | sym_end = symbols + symcount; |
| 1220 | |
| 1221 | /* Handle the local symbols. Any external symbols are handled |
| 1222 | separately. */ |
| 1223 | fdr.csym = 0; |
| 1224 | for (sym_ptr = symbols; sym_ptr != sym_end; sym_ptr++) |
| 1225 | { |
| 1226 | SYMR internal_sym; |
| 1227 | PTR external_sym; |
| 1228 | |
| 1229 | if (((*sym_ptr)->flags & BSF_EXPORT) != 0) |
| 1230 | continue; |
| 1231 | memset ((PTR) &internal_sym, 0, sizeof internal_sym); |
| 1232 | internal_sym.iss = ecoff_add_string (ainfo, info, output_debug, &fdr, |
| 1233 | (*sym_ptr)->name); |
| 1234 | |
| 1235 | if (internal_sym.iss == -1) |
| 1236 | return false; |
| 1237 | if (bfd_is_com_section ((*sym_ptr)->section) |
| 1238 | || bfd_is_und_section ((*sym_ptr)->section)) |
| 1239 | internal_sym.value = (*sym_ptr)->value; |
| 1240 | else |
| 1241 | internal_sym.value = ((*sym_ptr)->value |
| 1242 | + (*sym_ptr)->section->output_offset |
| 1243 | + (*sym_ptr)->section->output_section->vma); |
| 1244 | internal_sym.st = stNil; |
| 1245 | internal_sym.sc = scUndefined; |
| 1246 | internal_sym.index = indexNil; |
| 1247 | |
| 1248 | external_sym = (PTR) objalloc_alloc (ainfo->memory, |
| 1249 | output_swap->external_sym_size); |
| 1250 | if (!external_sym) |
| 1251 | { |
| 1252 | bfd_set_error (bfd_error_no_memory); |
| 1253 | return false; |
| 1254 | } |
| 1255 | (*swap_sym_out) (output_bfd, &internal_sym, external_sym); |
| 1256 | add_memory_shuffle (ainfo, &ainfo->sym, &ainfo->sym_end, |
| 1257 | external_sym, |
| 1258 | (unsigned long) output_swap->external_sym_size); |
| 1259 | ++fdr.csym; |
| 1260 | ++output_symhdr->isymMax; |
| 1261 | } |
| 1262 | |
| 1263 | bfd_release (output_bfd, (PTR) symbols); |
| 1264 | |
| 1265 | /* Leave everything else in the FDR zeroed out. This will cause |
| 1266 | the lang field to be langC. The fBigendian field will |
| 1267 | indicate little endian format, but it doesn't matter because |
| 1268 | it only applies to aux fields and there are none. */ |
| 1269 | external_fdr = (PTR) objalloc_alloc (ainfo->memory, |
| 1270 | output_swap->external_fdr_size); |
| 1271 | if (!external_fdr) |
| 1272 | { |
| 1273 | bfd_set_error (bfd_error_no_memory); |
| 1274 | return false; |
| 1275 | } |
| 1276 | (*output_swap->swap_fdr_out) (output_bfd, &fdr, external_fdr); |
| 1277 | add_memory_shuffle (ainfo, &ainfo->fdr, &ainfo->fdr_end, |
| 1278 | external_fdr, |
| 1279 | (unsigned long) output_swap->external_fdr_size); |
| 1280 | |
| 1281 | ++output_symhdr->ifdMax; |
| 1282 | |
| 1283 | return true; |
| 1284 | } |
| 1285 | |
| 1286 | /* Set up ECOFF debugging information for the external symbols. |
| 1287 | FIXME: This is done using a memory buffer, but it should be |
| 1288 | probably be changed to use a shuffle structure. The assembler uses |
| 1289 | this interface, so that must be changed to do something else. */ |
| 1290 | |
| 1291 | boolean |
| 1292 | bfd_ecoff_debug_externals (abfd, debug, swap, relocateable, get_extr, |
| 1293 | set_index) |
| 1294 | bfd *abfd; |
| 1295 | struct ecoff_debug_info *debug; |
| 1296 | const struct ecoff_debug_swap *swap; |
| 1297 | boolean relocateable; |
| 1298 | boolean (*get_extr) PARAMS ((asymbol *, EXTR *)); |
| 1299 | void (*set_index) PARAMS ((asymbol *, bfd_size_type)); |
| 1300 | { |
| 1301 | HDRR * const symhdr = &debug->symbolic_header; |
| 1302 | asymbol **sym_ptr_ptr; |
| 1303 | size_t c; |
| 1304 | |
| 1305 | sym_ptr_ptr = bfd_get_outsymbols (abfd); |
| 1306 | if (sym_ptr_ptr == NULL) |
| 1307 | return true; |
| 1308 | |
| 1309 | for (c = bfd_get_symcount (abfd); c > 0; c--, sym_ptr_ptr++) |
| 1310 | { |
| 1311 | asymbol *sym_ptr; |
| 1312 | EXTR esym; |
| 1313 | |
| 1314 | sym_ptr = *sym_ptr_ptr; |
| 1315 | |
| 1316 | /* Get the external symbol information. */ |
| 1317 | if ((*get_extr) (sym_ptr, &esym) == false) |
| 1318 | continue; |
| 1319 | |
| 1320 | /* If we're producing an executable, move common symbols into |
| 1321 | bss. */ |
| 1322 | if (relocateable == false) |
| 1323 | { |
| 1324 | if (esym.asym.sc == scCommon) |
| 1325 | esym.asym.sc = scBss; |
| 1326 | else if (esym.asym.sc == scSCommon) |
| 1327 | esym.asym.sc = scSBss; |
| 1328 | } |
| 1329 | |
| 1330 | if (bfd_is_com_section (sym_ptr->section) |
| 1331 | || bfd_is_und_section (sym_ptr->section) |
| 1332 | || sym_ptr->section->output_section == (asection *) NULL) |
| 1333 | { |
| 1334 | /* FIXME: gas does not keep the value of a small undefined |
| 1335 | symbol in the symbol itself, because of relocation |
| 1336 | problems. */ |
| 1337 | if (esym.asym.sc != scSUndefined |
| 1338 | || esym.asym.value == 0 |
| 1339 | || sym_ptr->value != 0) |
| 1340 | esym.asym.value = sym_ptr->value; |
| 1341 | } |
| 1342 | else |
| 1343 | esym.asym.value = (sym_ptr->value |
| 1344 | + sym_ptr->section->output_offset |
| 1345 | + sym_ptr->section->output_section->vma); |
| 1346 | |
| 1347 | if (set_index) |
| 1348 | (*set_index) (sym_ptr, (bfd_size_type) symhdr->iextMax); |
| 1349 | |
| 1350 | if (! bfd_ecoff_debug_one_external (abfd, debug, swap, |
| 1351 | sym_ptr->name, &esym)) |
| 1352 | return false; |
| 1353 | } |
| 1354 | |
| 1355 | return true; |
| 1356 | } |
| 1357 | |
| 1358 | /* Add a single external symbol to the debugging information. */ |
| 1359 | |
| 1360 | boolean |
| 1361 | bfd_ecoff_debug_one_external (abfd, debug, swap, name, esym) |
| 1362 | bfd *abfd; |
| 1363 | struct ecoff_debug_info *debug; |
| 1364 | const struct ecoff_debug_swap *swap; |
| 1365 | const char *name; |
| 1366 | EXTR *esym; |
| 1367 | { |
| 1368 | const bfd_size_type external_ext_size = swap->external_ext_size; |
| 1369 | void (* const swap_ext_out) PARAMS ((bfd *, const EXTR *, PTR)) |
| 1370 | = swap->swap_ext_out; |
| 1371 | HDRR * const symhdr = &debug->symbolic_header; |
| 1372 | size_t namelen; |
| 1373 | |
| 1374 | namelen = strlen (name); |
| 1375 | |
| 1376 | if ((size_t) (debug->ssext_end - debug->ssext) |
| 1377 | < symhdr->issExtMax + namelen + 1) |
| 1378 | { |
| 1379 | if (ecoff_add_bytes ((char **) &debug->ssext, |
| 1380 | (char **) &debug->ssext_end, |
| 1381 | symhdr->issExtMax + namelen + 1) |
| 1382 | == false) |
| 1383 | return false; |
| 1384 | } |
| 1385 | if ((size_t) ((char *) debug->external_ext_end |
| 1386 | - (char *) debug->external_ext) |
| 1387 | < (symhdr->iextMax + 1) * external_ext_size) |
| 1388 | { |
| 1389 | if (ecoff_add_bytes ((char **) &debug->external_ext, |
| 1390 | (char **) &debug->external_ext_end, |
| 1391 | (symhdr->iextMax + 1) * (size_t) external_ext_size) |
| 1392 | == false) |
| 1393 | return false; |
| 1394 | } |
| 1395 | |
| 1396 | esym->asym.iss = symhdr->issExtMax; |
| 1397 | |
| 1398 | (*swap_ext_out) (abfd, esym, |
| 1399 | ((char *) debug->external_ext |
| 1400 | + symhdr->iextMax * swap->external_ext_size)); |
| 1401 | |
| 1402 | ++symhdr->iextMax; |
| 1403 | |
| 1404 | strcpy (debug->ssext + symhdr->issExtMax, name); |
| 1405 | symhdr->issExtMax += namelen + 1; |
| 1406 | |
| 1407 | return true; |
| 1408 | } |
| 1409 | |
| 1410 | /* Align the ECOFF debugging information. */ |
| 1411 | |
| 1412 | static void |
| 1413 | ecoff_align_debug (abfd, debug, swap) |
| 1414 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1415 | struct ecoff_debug_info *debug; |
| 1416 | const struct ecoff_debug_swap *swap; |
| 1417 | { |
| 1418 | HDRR * const symhdr = &debug->symbolic_header; |
| 1419 | bfd_size_type debug_align, aux_align, rfd_align; |
| 1420 | size_t add; |
| 1421 | |
| 1422 | /* Adjust the counts so that structures are aligned. */ |
| 1423 | debug_align = swap->debug_align; |
| 1424 | aux_align = debug_align / sizeof (union aux_ext); |
| 1425 | rfd_align = debug_align / swap->external_rfd_size; |
| 1426 | |
| 1427 | add = debug_align - (symhdr->cbLine & (debug_align - 1)); |
| 1428 | if (add != debug_align) |
| 1429 | { |
| 1430 | if (debug->line != (unsigned char *) NULL) |
| 1431 | memset ((PTR) (debug->line + symhdr->cbLine), 0, add); |
| 1432 | symhdr->cbLine += add; |
| 1433 | } |
| 1434 | |
| 1435 | add = debug_align - (symhdr->issMax & (debug_align - 1)); |
| 1436 | if (add != debug_align) |
| 1437 | { |
| 1438 | if (debug->ss != (char *) NULL) |
| 1439 | memset ((PTR) (debug->ss + symhdr->issMax), 0, add); |
| 1440 | symhdr->issMax += add; |
| 1441 | } |
| 1442 | |
| 1443 | add = debug_align - (symhdr->issExtMax & (debug_align - 1)); |
| 1444 | if (add != debug_align) |
| 1445 | { |
| 1446 | if (debug->ssext != (char *) NULL) |
| 1447 | memset ((PTR) (debug->ssext + symhdr->issExtMax), 0, add); |
| 1448 | symhdr->issExtMax += add; |
| 1449 | } |
| 1450 | |
| 1451 | add = aux_align - (symhdr->iauxMax & (aux_align - 1)); |
| 1452 | if (add != aux_align) |
| 1453 | { |
| 1454 | if (debug->external_aux != (union aux_ext *) NULL) |
| 1455 | memset ((PTR) (debug->external_aux + symhdr->iauxMax), 0, |
| 1456 | add * sizeof (union aux_ext)); |
| 1457 | symhdr->iauxMax += add; |
| 1458 | } |
| 1459 | |
| 1460 | add = rfd_align - (symhdr->crfd & (rfd_align - 1)); |
| 1461 | if (add != rfd_align) |
| 1462 | { |
| 1463 | if (debug->external_rfd != (PTR) NULL) |
| 1464 | memset ((PTR) ((char *) debug->external_rfd |
| 1465 | + symhdr->crfd * swap->external_rfd_size), |
| 1466 | 0, (size_t) (add * swap->external_rfd_size)); |
| 1467 | symhdr->crfd += add; |
| 1468 | } |
| 1469 | } |
| 1470 | |
| 1471 | /* Return the size required by the ECOFF debugging information. */ |
| 1472 | |
| 1473 | bfd_size_type |
| 1474 | bfd_ecoff_debug_size (abfd, debug, swap) |
| 1475 | bfd *abfd; |
| 1476 | struct ecoff_debug_info *debug; |
| 1477 | const struct ecoff_debug_swap *swap; |
| 1478 | { |
| 1479 | bfd_size_type tot; |
| 1480 | |
| 1481 | ecoff_align_debug (abfd, debug, swap); |
| 1482 | tot = swap->external_hdr_size; |
| 1483 | |
| 1484 | #define ADD(count, size) \ |
| 1485 | tot += debug->symbolic_header.count * size |
| 1486 | |
| 1487 | ADD (cbLine, sizeof (unsigned char)); |
| 1488 | ADD (idnMax, swap->external_dnr_size); |
| 1489 | ADD (ipdMax, swap->external_pdr_size); |
| 1490 | ADD (isymMax, swap->external_sym_size); |
| 1491 | ADD (ioptMax, swap->external_opt_size); |
| 1492 | ADD (iauxMax, sizeof (union aux_ext)); |
| 1493 | ADD (issMax, sizeof (char)); |
| 1494 | ADD (issExtMax, sizeof (char)); |
| 1495 | ADD (ifdMax, swap->external_fdr_size); |
| 1496 | ADD (crfd, swap->external_rfd_size); |
| 1497 | ADD (iextMax, swap->external_ext_size); |
| 1498 | |
| 1499 | #undef ADD |
| 1500 | |
| 1501 | return tot; |
| 1502 | } |
| 1503 | |
| 1504 | /* Write out the ECOFF symbolic header, given the file position it is |
| 1505 | going to be placed at. This assumes that the counts are set |
| 1506 | correctly. */ |
| 1507 | |
| 1508 | static boolean |
| 1509 | ecoff_write_symhdr (abfd, debug, swap, where) |
| 1510 | bfd *abfd; |
| 1511 | struct ecoff_debug_info *debug; |
| 1512 | const struct ecoff_debug_swap *swap; |
| 1513 | file_ptr where; |
| 1514 | { |
| 1515 | HDRR * const symhdr = &debug->symbolic_header; |
| 1516 | char *buff = NULL; |
| 1517 | |
| 1518 | ecoff_align_debug (abfd, debug, swap); |
| 1519 | |
| 1520 | /* Go to the right location in the file. */ |
| 1521 | if (bfd_seek (abfd, where, SEEK_SET) != 0) |
| 1522 | return false; |
| 1523 | |
| 1524 | where += swap->external_hdr_size; |
| 1525 | |
| 1526 | symhdr->magic = swap->sym_magic; |
| 1527 | |
| 1528 | /* Fill in the file offsets. */ |
| 1529 | #define SET(offset, count, size) \ |
| 1530 | if (symhdr->count == 0) \ |
| 1531 | symhdr->offset = 0; \ |
| 1532 | else \ |
| 1533 | { \ |
| 1534 | symhdr->offset = where; \ |
| 1535 | where += symhdr->count * size; \ |
| 1536 | } |
| 1537 | |
| 1538 | SET (cbLineOffset, cbLine, sizeof (unsigned char)); |
| 1539 | SET (cbDnOffset, idnMax, swap->external_dnr_size); |
| 1540 | SET (cbPdOffset, ipdMax, swap->external_pdr_size); |
| 1541 | SET (cbSymOffset, isymMax, swap->external_sym_size); |
| 1542 | SET (cbOptOffset, ioptMax, swap->external_opt_size); |
| 1543 | SET (cbAuxOffset, iauxMax, sizeof (union aux_ext)); |
| 1544 | SET (cbSsOffset, issMax, sizeof (char)); |
| 1545 | SET (cbSsExtOffset, issExtMax, sizeof (char)); |
| 1546 | SET (cbFdOffset, ifdMax, swap->external_fdr_size); |
| 1547 | SET (cbRfdOffset, crfd, swap->external_rfd_size); |
| 1548 | SET (cbExtOffset, iextMax, swap->external_ext_size); |
| 1549 | #undef SET |
| 1550 | |
| 1551 | buff = (PTR) bfd_malloc (swap->external_hdr_size); |
| 1552 | if (buff == NULL && swap->external_hdr_size != 0) |
| 1553 | goto error_return; |
| 1554 | |
| 1555 | (*swap->swap_hdr_out) (abfd, symhdr, buff); |
| 1556 | if (bfd_bwrite (buff, swap->external_hdr_size, abfd) |
| 1557 | != swap->external_hdr_size) |
| 1558 | goto error_return; |
| 1559 | |
| 1560 | if (buff != NULL) |
| 1561 | free (buff); |
| 1562 | return true; |
| 1563 | error_return: |
| 1564 | if (buff != NULL) |
| 1565 | free (buff); |
| 1566 | return false; |
| 1567 | } |
| 1568 | |
| 1569 | /* Write out the ECOFF debugging information. This function assumes |
| 1570 | that the information (the pointers and counts) in *DEBUG have been |
| 1571 | set correctly. WHERE is the position in the file to write the |
| 1572 | information to. This function fills in the file offsets in the |
| 1573 | symbolic header. */ |
| 1574 | |
| 1575 | boolean |
| 1576 | bfd_ecoff_write_debug (abfd, debug, swap, where) |
| 1577 | bfd *abfd; |
| 1578 | struct ecoff_debug_info *debug; |
| 1579 | const struct ecoff_debug_swap *swap; |
| 1580 | file_ptr where; |
| 1581 | { |
| 1582 | HDRR * const symhdr = &debug->symbolic_header; |
| 1583 | |
| 1584 | if (! ecoff_write_symhdr (abfd, debug, swap, where)) |
| 1585 | return false; |
| 1586 | |
| 1587 | #define WRITE(ptr, count, size, offset) \ |
| 1588 | BFD_ASSERT (symhdr->offset == 0 \ |
| 1589 | || (bfd_vma) bfd_tell (abfd) == symhdr->offset); \ |
| 1590 | if (bfd_bwrite ((PTR) debug->ptr, (bfd_size_type) size * symhdr->count, abfd)\ |
| 1591 | != size * symhdr->count) \ |
| 1592 | return false; |
| 1593 | |
| 1594 | WRITE (line, cbLine, sizeof (unsigned char), cbLineOffset); |
| 1595 | WRITE (external_dnr, idnMax, swap->external_dnr_size, cbDnOffset); |
| 1596 | WRITE (external_pdr, ipdMax, swap->external_pdr_size, cbPdOffset); |
| 1597 | WRITE (external_sym, isymMax, swap->external_sym_size, cbSymOffset); |
| 1598 | WRITE (external_opt, ioptMax, swap->external_opt_size, cbOptOffset); |
| 1599 | WRITE (external_aux, iauxMax, (bfd_size_type) sizeof (union aux_ext), |
| 1600 | cbAuxOffset); |
| 1601 | WRITE (ss, issMax, sizeof (char), cbSsOffset); |
| 1602 | WRITE (ssext, issExtMax, sizeof (char), cbSsExtOffset); |
| 1603 | WRITE (external_fdr, ifdMax, swap->external_fdr_size, cbFdOffset); |
| 1604 | WRITE (external_rfd, crfd, swap->external_rfd_size, cbRfdOffset); |
| 1605 | WRITE (external_ext, iextMax, swap->external_ext_size, cbExtOffset); |
| 1606 | #undef WRITE |
| 1607 | |
| 1608 | return true; |
| 1609 | } |
| 1610 | |
| 1611 | /* Write out a shuffle list. */ |
| 1612 | |
| 1613 | static boolean ecoff_write_shuffle PARAMS ((bfd *, |
| 1614 | const struct ecoff_debug_swap *, |
| 1615 | struct shuffle *, PTR space)); |
| 1616 | |
| 1617 | static boolean |
| 1618 | ecoff_write_shuffle (abfd, swap, shuffle, space) |
| 1619 | bfd *abfd; |
| 1620 | const struct ecoff_debug_swap *swap; |
| 1621 | struct shuffle *shuffle; |
| 1622 | PTR space; |
| 1623 | { |
| 1624 | register struct shuffle *l; |
| 1625 | unsigned long total; |
| 1626 | |
| 1627 | total = 0; |
| 1628 | for (l = shuffle; l != (struct shuffle *) NULL; l = l->next) |
| 1629 | { |
| 1630 | if (! l->filep) |
| 1631 | { |
| 1632 | if (bfd_bwrite (l->u.memory, (bfd_size_type) l->size, abfd) |
| 1633 | != l->size) |
| 1634 | return false; |
| 1635 | } |
| 1636 | else |
| 1637 | { |
| 1638 | if (bfd_seek (l->u.file.input_bfd, l->u.file.offset, SEEK_SET) != 0 |
| 1639 | || bfd_bread (space, (bfd_size_type) l->size, |
| 1640 | l->u.file.input_bfd) != l->size |
| 1641 | || bfd_bwrite (space, (bfd_size_type) l->size, abfd) != l->size) |
| 1642 | return false; |
| 1643 | } |
| 1644 | total += l->size; |
| 1645 | } |
| 1646 | |
| 1647 | if ((total & (swap->debug_align - 1)) != 0) |
| 1648 | { |
| 1649 | unsigned int i; |
| 1650 | bfd_byte *s; |
| 1651 | |
| 1652 | i = swap->debug_align - (total & (swap->debug_align - 1)); |
| 1653 | s = (bfd_byte *) bfd_malloc ((bfd_size_type) i); |
| 1654 | if (s == NULL && i != 0) |
| 1655 | return false; |
| 1656 | |
| 1657 | memset ((PTR) s, 0, i); |
| 1658 | if (bfd_bwrite ((PTR) s, (bfd_size_type) i, abfd) != i) |
| 1659 | { |
| 1660 | free (s); |
| 1661 | return false; |
| 1662 | } |
| 1663 | free (s); |
| 1664 | } |
| 1665 | |
| 1666 | return true; |
| 1667 | } |
| 1668 | |
| 1669 | /* Write out debugging information using accumulated linker |
| 1670 | information. */ |
| 1671 | |
| 1672 | boolean |
| 1673 | bfd_ecoff_write_accumulated_debug (handle, abfd, debug, swap, info, where) |
| 1674 | PTR handle; |
| 1675 | bfd *abfd; |
| 1676 | struct ecoff_debug_info *debug; |
| 1677 | const struct ecoff_debug_swap *swap; |
| 1678 | struct bfd_link_info *info; |
| 1679 | file_ptr where; |
| 1680 | { |
| 1681 | struct accumulate *ainfo = (struct accumulate *) handle; |
| 1682 | PTR space = NULL; |
| 1683 | bfd_size_type amt; |
| 1684 | |
| 1685 | if (! ecoff_write_symhdr (abfd, debug, swap, where)) |
| 1686 | goto error_return; |
| 1687 | |
| 1688 | amt = ainfo->largest_file_shuffle; |
| 1689 | space = (PTR) bfd_malloc (amt); |
| 1690 | if (space == NULL && ainfo->largest_file_shuffle != 0) |
| 1691 | goto error_return; |
| 1692 | |
| 1693 | if (! ecoff_write_shuffle (abfd, swap, ainfo->line, space) |
| 1694 | || ! ecoff_write_shuffle (abfd, swap, ainfo->pdr, space) |
| 1695 | || ! ecoff_write_shuffle (abfd, swap, ainfo->sym, space) |
| 1696 | || ! ecoff_write_shuffle (abfd, swap, ainfo->opt, space) |
| 1697 | || ! ecoff_write_shuffle (abfd, swap, ainfo->aux, space)) |
| 1698 | goto error_return; |
| 1699 | |
| 1700 | /* The string table is written out from the hash table if this is a |
| 1701 | final link. */ |
| 1702 | if (info->relocateable) |
| 1703 | { |
| 1704 | BFD_ASSERT (ainfo->ss_hash == (struct string_hash_entry *) NULL); |
| 1705 | if (! ecoff_write_shuffle (abfd, swap, ainfo->ss, space)) |
| 1706 | goto error_return; |
| 1707 | } |
| 1708 | else |
| 1709 | { |
| 1710 | unsigned long total; |
| 1711 | bfd_byte null; |
| 1712 | struct string_hash_entry *sh; |
| 1713 | |
| 1714 | BFD_ASSERT (ainfo->ss == (struct shuffle *) NULL); |
| 1715 | null = 0; |
| 1716 | if (bfd_bwrite ((PTR) &null, (bfd_size_type) 1, abfd) != 1) |
| 1717 | goto error_return; |
| 1718 | total = 1; |
| 1719 | BFD_ASSERT (ainfo->ss_hash == NULL || ainfo->ss_hash->val == 1); |
| 1720 | for (sh = ainfo->ss_hash; |
| 1721 | sh != (struct string_hash_entry *) NULL; |
| 1722 | sh = sh->next) |
| 1723 | { |
| 1724 | size_t len; |
| 1725 | |
| 1726 | len = strlen (sh->root.string); |
| 1727 | amt = len + 1; |
| 1728 | if (bfd_bwrite ((PTR) sh->root.string, amt, abfd) != amt) |
| 1729 | goto error_return; |
| 1730 | total += len + 1; |
| 1731 | } |
| 1732 | |
| 1733 | if ((total & (swap->debug_align - 1)) != 0) |
| 1734 | { |
| 1735 | unsigned int i; |
| 1736 | bfd_byte *s; |
| 1737 | |
| 1738 | i = swap->debug_align - (total & (swap->debug_align - 1)); |
| 1739 | s = (bfd_byte *) bfd_malloc ((bfd_size_type) i); |
| 1740 | if (s == NULL && i != 0) |
| 1741 | goto error_return; |
| 1742 | memset ((PTR) s, 0, i); |
| 1743 | if (bfd_bwrite ((PTR) s, (bfd_size_type) i, abfd) != i) |
| 1744 | { |
| 1745 | free (s); |
| 1746 | goto error_return; |
| 1747 | } |
| 1748 | free (s); |
| 1749 | } |
| 1750 | } |
| 1751 | |
| 1752 | /* The external strings and symbol are not converted over to using |
| 1753 | shuffles. FIXME: They probably should be. */ |
| 1754 | amt = debug->symbolic_header.issExtMax; |
| 1755 | if (bfd_bwrite (debug->ssext, amt, abfd) != amt) |
| 1756 | goto error_return; |
| 1757 | if ((debug->symbolic_header.issExtMax & (swap->debug_align - 1)) != 0) |
| 1758 | { |
| 1759 | unsigned int i; |
| 1760 | bfd_byte *s; |
| 1761 | |
| 1762 | i = (swap->debug_align |
| 1763 | - (debug->symbolic_header.issExtMax & (swap->debug_align - 1))); |
| 1764 | s = (bfd_byte *) bfd_malloc ((bfd_size_type) i); |
| 1765 | if (s == NULL && i != 0) |
| 1766 | goto error_return; |
| 1767 | memset ((PTR) s, 0, i); |
| 1768 | if (bfd_bwrite ((PTR) s, (bfd_size_type) i, abfd) != i) |
| 1769 | { |
| 1770 | free (s); |
| 1771 | goto error_return; |
| 1772 | } |
| 1773 | free (s); |
| 1774 | } |
| 1775 | |
| 1776 | if (! ecoff_write_shuffle (abfd, swap, ainfo->fdr, space) |
| 1777 | || ! ecoff_write_shuffle (abfd, swap, ainfo->rfd, space)) |
| 1778 | goto error_return; |
| 1779 | |
| 1780 | BFD_ASSERT (debug->symbolic_header.cbExtOffset == 0 |
| 1781 | || (debug->symbolic_header.cbExtOffset |
| 1782 | == (bfd_vma) bfd_tell (abfd))); |
| 1783 | |
| 1784 | amt = debug->symbolic_header.iextMax * swap->external_ext_size; |
| 1785 | if (bfd_bwrite (debug->external_ext, amt, abfd) != amt) |
| 1786 | goto error_return; |
| 1787 | |
| 1788 | if (space != NULL) |
| 1789 | free (space); |
| 1790 | return true; |
| 1791 | |
| 1792 | error_return: |
| 1793 | if (space != NULL) |
| 1794 | free (space); |
| 1795 | return false; |
| 1796 | } |
| 1797 | \f |
| 1798 | /* Handle the find_nearest_line function for both ECOFF and MIPS ELF |
| 1799 | files. */ |
| 1800 | |
| 1801 | /* Compare FDR entries. This is called via qsort. */ |
| 1802 | |
| 1803 | static int |
| 1804 | cmp_fdrtab_entry (leftp, rightp) |
| 1805 | const PTR leftp; |
| 1806 | const PTR rightp; |
| 1807 | { |
| 1808 | const struct ecoff_fdrtab_entry *lp = |
| 1809 | (const struct ecoff_fdrtab_entry *) leftp; |
| 1810 | const struct ecoff_fdrtab_entry *rp = |
| 1811 | (const struct ecoff_fdrtab_entry *) rightp; |
| 1812 | |
| 1813 | if (lp->base_addr < rp->base_addr) |
| 1814 | return -1; |
| 1815 | if (lp->base_addr > rp->base_addr) |
| 1816 | return 1; |
| 1817 | return 0; |
| 1818 | } |
| 1819 | |
| 1820 | /* Each file descriptor (FDR) has a memory address, to simplify |
| 1821 | looking up an FDR by address, we build a table covering all FDRs |
| 1822 | that have a least one procedure descriptor in them. The final |
| 1823 | table will be sorted by address so we can look it up via binary |
| 1824 | search. */ |
| 1825 | |
| 1826 | static boolean |
| 1827 | mk_fdrtab (abfd, debug_info, debug_swap, line_info) |
| 1828 | bfd *abfd; |
| 1829 | struct ecoff_debug_info * const debug_info; |
| 1830 | const struct ecoff_debug_swap * const debug_swap; |
| 1831 | struct ecoff_find_line *line_info; |
| 1832 | { |
| 1833 | struct ecoff_fdrtab_entry *tab; |
| 1834 | FDR *fdr_ptr; |
| 1835 | FDR *fdr_start; |
| 1836 | FDR *fdr_end; |
| 1837 | boolean stabs; |
| 1838 | long len; |
| 1839 | bfd_size_type amt; |
| 1840 | |
| 1841 | fdr_start = debug_info->fdr; |
| 1842 | fdr_end = fdr_start + debug_info->symbolic_header.ifdMax; |
| 1843 | |
| 1844 | /* First, let's see how long the table needs to be: */ |
| 1845 | for (len = 0, fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) |
| 1846 | { |
| 1847 | if (fdr_ptr->cpd == 0) /* skip FDRs that have no PDRs */ |
| 1848 | continue; |
| 1849 | ++len; |
| 1850 | } |
| 1851 | |
| 1852 | /* Now, create and fill in the table: */ |
| 1853 | |
| 1854 | amt = (bfd_size_type) len * sizeof (struct ecoff_fdrtab_entry); |
| 1855 | line_info->fdrtab = (struct ecoff_fdrtab_entry*) bfd_zalloc (abfd, amt); |
| 1856 | if (line_info->fdrtab == NULL) |
| 1857 | return false; |
| 1858 | line_info->fdrtab_len = len; |
| 1859 | |
| 1860 | tab = line_info->fdrtab; |
| 1861 | for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) |
| 1862 | { |
| 1863 | if (fdr_ptr->cpd == 0) |
| 1864 | continue; |
| 1865 | |
| 1866 | /* Check whether this file has stabs debugging information. In |
| 1867 | a file with stabs debugging information, the second local |
| 1868 | symbol is named @stabs. */ |
| 1869 | stabs = false; |
| 1870 | if (fdr_ptr->csym >= 2) |
| 1871 | { |
| 1872 | char *sym_ptr; |
| 1873 | SYMR sym; |
| 1874 | |
| 1875 | sym_ptr = ((char *) debug_info->external_sym |
| 1876 | + (fdr_ptr->isymBase + 1)*debug_swap->external_sym_size); |
| 1877 | (*debug_swap->swap_sym_in) (abfd, sym_ptr, &sym); |
| 1878 | if (strcmp (debug_info->ss + fdr_ptr->issBase + sym.iss, |
| 1879 | STABS_SYMBOL) == 0) |
| 1880 | stabs = true; |
| 1881 | } |
| 1882 | |
| 1883 | if (!stabs) |
| 1884 | { |
| 1885 | bfd_size_type external_pdr_size; |
| 1886 | char *pdr_ptr; |
| 1887 | PDR pdr; |
| 1888 | |
| 1889 | external_pdr_size = debug_swap->external_pdr_size; |
| 1890 | |
| 1891 | pdr_ptr = ((char *) debug_info->external_pdr |
| 1892 | + fdr_ptr->ipdFirst * external_pdr_size); |
| 1893 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
| 1894 | /* The address of the first PDR is the offset of that |
| 1895 | procedure relative to the beginning of file FDR. */ |
| 1896 | tab->base_addr = fdr_ptr->adr - pdr.adr; |
| 1897 | } |
| 1898 | else |
| 1899 | { |
| 1900 | /* XXX I don't know about stabs, so this is a guess |
| 1901 | (davidm@cs.arizona.edu): */ |
| 1902 | tab->base_addr = fdr_ptr->adr; |
| 1903 | } |
| 1904 | tab->fdr = fdr_ptr; |
| 1905 | ++tab; |
| 1906 | } |
| 1907 | |
| 1908 | /* Finally, the table is sorted in increasing memory-address order. |
| 1909 | The table is mostly sorted already, but there are cases (e.g., |
| 1910 | static functions in include files), where this does not hold. |
| 1911 | Use "odump -PFv" to verify... */ |
| 1912 | qsort ((PTR) line_info->fdrtab, (size_t) len, |
| 1913 | sizeof (struct ecoff_fdrtab_entry), cmp_fdrtab_entry); |
| 1914 | |
| 1915 | return true; |
| 1916 | } |
| 1917 | |
| 1918 | /* Return index of first FDR that covers to OFFSET. */ |
| 1919 | |
| 1920 | static long |
| 1921 | fdrtab_lookup (line_info, offset) |
| 1922 | struct ecoff_find_line *line_info; |
| 1923 | bfd_vma offset; |
| 1924 | { |
| 1925 | long low, high, len; |
| 1926 | long mid = -1; |
| 1927 | struct ecoff_fdrtab_entry *tab; |
| 1928 | |
| 1929 | len = line_info->fdrtab_len; |
| 1930 | if (len == 0) |
| 1931 | return -1; |
| 1932 | |
| 1933 | tab = line_info->fdrtab; |
| 1934 | for (low = 0, high = len - 1 ; low != high ;) |
| 1935 | { |
| 1936 | mid = (high + low) / 2; |
| 1937 | if (offset >= tab[mid].base_addr && offset < tab[mid + 1].base_addr) |
| 1938 | goto find_min; |
| 1939 | |
| 1940 | if (tab[mid].base_addr > offset) |
| 1941 | high = mid; |
| 1942 | else |
| 1943 | low = mid + 1; |
| 1944 | } |
| 1945 | ++mid; |
| 1946 | |
| 1947 | /* last entry is catch-all for all higher addresses: */ |
| 1948 | if (offset < tab[mid].base_addr) |
| 1949 | return -1; |
| 1950 | |
| 1951 | find_min: |
| 1952 | |
| 1953 | while (mid > 0 && tab[mid - 1].base_addr == tab[mid].base_addr) |
| 1954 | --mid; |
| 1955 | |
| 1956 | return mid; |
| 1957 | } |
| 1958 | |
| 1959 | /* Look up a line given an address, storing the information in |
| 1960 | LINE_INFO->cache. */ |
| 1961 | |
| 1962 | static boolean |
| 1963 | lookup_line (abfd, debug_info, debug_swap, line_info) |
| 1964 | bfd *abfd; |
| 1965 | struct ecoff_debug_info * const debug_info; |
| 1966 | const struct ecoff_debug_swap * const debug_swap; |
| 1967 | struct ecoff_find_line *line_info; |
| 1968 | { |
| 1969 | struct ecoff_fdrtab_entry *tab; |
| 1970 | bfd_vma offset; |
| 1971 | boolean stabs; |
| 1972 | FDR *fdr_ptr; |
| 1973 | int i; |
| 1974 | |
| 1975 | offset = line_info->cache.start; |
| 1976 | |
| 1977 | /* Build FDR table (sorted by object file's base-address) if we |
| 1978 | don't have it already. */ |
| 1979 | if (line_info->fdrtab == NULL |
| 1980 | && !mk_fdrtab (abfd, debug_info, debug_swap, line_info)) |
| 1981 | return false; |
| 1982 | |
| 1983 | tab = line_info->fdrtab; |
| 1984 | |
| 1985 | /* find first FDR for address OFFSET */ |
| 1986 | i = fdrtab_lookup (line_info, offset); |
| 1987 | if (i < 0) |
| 1988 | return false; /* no FDR, no fun... */ |
| 1989 | fdr_ptr = tab[i].fdr; |
| 1990 | |
| 1991 | /* Check whether this file has stabs debugging information. In a |
| 1992 | file with stabs debugging information, the second local symbol is |
| 1993 | named @stabs. */ |
| 1994 | stabs = false; |
| 1995 | if (fdr_ptr->csym >= 2) |
| 1996 | { |
| 1997 | char *sym_ptr; |
| 1998 | SYMR sym; |
| 1999 | |
| 2000 | sym_ptr = ((char *) debug_info->external_sym |
| 2001 | + (fdr_ptr->isymBase + 1) * debug_swap->external_sym_size); |
| 2002 | (*debug_swap->swap_sym_in) (abfd, sym_ptr, &sym); |
| 2003 | if (strcmp (debug_info->ss + fdr_ptr->issBase + sym.iss, |
| 2004 | STABS_SYMBOL) == 0) |
| 2005 | stabs = true; |
| 2006 | } |
| 2007 | |
| 2008 | if (!stabs) |
| 2009 | { |
| 2010 | bfd_size_type external_pdr_size; |
| 2011 | char *pdr_ptr; |
| 2012 | char *best_pdr = NULL; |
| 2013 | FDR *best_fdr; |
| 2014 | bfd_vma best_dist = ~(bfd_vma) 0; |
| 2015 | PDR pdr; |
| 2016 | unsigned char *line_ptr; |
| 2017 | unsigned char *line_end; |
| 2018 | int lineno; |
| 2019 | /* This file uses ECOFF debugging information. Each FDR has a |
| 2020 | list of procedure descriptors (PDR). The address in the FDR |
| 2021 | is the absolute address of the first procedure. The address |
| 2022 | in the first PDR gives the offset of that procedure relative |
| 2023 | to the object file's base-address. The addresses in |
| 2024 | subsequent PDRs specify each procedure's address relative to |
| 2025 | the object file's base-address. To make things more juicy, |
| 2026 | whenever the PROF bit in the PDR is set, the real entry point |
| 2027 | of the procedure may be 16 bytes below what would normally be |
| 2028 | the procedure's entry point. Instead, DEC came up with a |
| 2029 | wicked scheme to create profiled libraries "on the fly": |
| 2030 | instead of shipping a regular and a profiled version of each |
| 2031 | library, they insert 16 bytes of unused space in front of |
| 2032 | each procedure and set the "prof" bit in the PDR to indicate |
| 2033 | that there is a gap there (this is done automagically by "as" |
| 2034 | when option "-pg" is specified). Thus, normally, you link |
| 2035 | against such a library and, except for lots of 16 byte gaps |
| 2036 | between functions, things will behave as usual. However, |
| 2037 | when invoking "ld" with option "-pg", it will fill those gaps |
| 2038 | with code that calls mcount(). It then moves the function's |
| 2039 | entry point down by 16 bytes, and out pops a binary that has |
| 2040 | all functions profiled. |
| 2041 | |
| 2042 | NOTE: Neither FDRs nor PDRs are strictly sorted in memory |
| 2043 | order. For example, when including header-files that |
| 2044 | define functions, the FDRs follow behind the including |
| 2045 | file, even though their code may have been generated at |
| 2046 | a lower address. File coff-alpha.c from libbfd |
| 2047 | illustrates this (use "odump -PFv" to look at a file's |
| 2048 | FDR/PDR). Similarly, PDRs are sometimes out of order |
| 2049 | as well. An example of this is OSF/1 v3.0 libc's |
| 2050 | malloc.c. I'm not sure why this happens, but it could |
| 2051 | be due to optimizations that reorder a function's |
| 2052 | position within an object-file. |
| 2053 | |
| 2054 | Strategy: |
| 2055 | |
| 2056 | On the first call to this function, we build a table of FDRs |
| 2057 | that is sorted by the base-address of the object-file the FDR |
| 2058 | is referring to. Notice that each object-file may contain |
| 2059 | code from multiple source files (e.g., due to code defined in |
| 2060 | include files). Thus, for any given base-address, there may |
| 2061 | be multiple FDRs (but this case is, fortunately, uncommon). |
| 2062 | lookup(addr) guarantees to return the first FDR that applies |
| 2063 | to address ADDR. Thus, after invoking lookup(), we have a |
| 2064 | list of FDRs that may contain the PDR for ADDR. Next, we |
| 2065 | walk through the PDRs of these FDRs and locate the one that |
| 2066 | is closest to ADDR (i.e., for which the difference between |
| 2067 | ADDR and the PDR's entry point is positive and minimal). |
| 2068 | Once, the right FDR and PDR are located, we simply walk |
| 2069 | through the line-number table to lookup the line-number that |
| 2070 | best matches ADDR. Obviously, things could be sped up by |
| 2071 | keeping a sorted list of PDRs instead of a sorted list of |
| 2072 | FDRs. However, this would increase space requirements |
| 2073 | considerably, which is undesirable. */ |
| 2074 | external_pdr_size = debug_swap->external_pdr_size; |
| 2075 | |
| 2076 | /* Make offset relative to object file's start-address: */ |
| 2077 | offset -= tab[i].base_addr; |
| 2078 | /* Search FDR list starting at tab[i] for the PDR that best matches |
| 2079 | OFFSET. Normally, the FDR list is only one entry long. */ |
| 2080 | best_fdr = NULL; |
| 2081 | do |
| 2082 | { |
| 2083 | bfd_vma dist, min_dist = 0; |
| 2084 | char *pdr_hold; |
| 2085 | char *pdr_end; |
| 2086 | |
| 2087 | fdr_ptr = tab[i].fdr; |
| 2088 | |
| 2089 | pdr_ptr = ((char *) debug_info->external_pdr |
| 2090 | + fdr_ptr->ipdFirst * external_pdr_size); |
| 2091 | pdr_end = pdr_ptr + fdr_ptr->cpd * external_pdr_size; |
| 2092 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
| 2093 | /* Find PDR that is closest to OFFSET. If pdr.prof is set, |
| 2094 | the procedure entry-point *may* be 0x10 below pdr.adr. We |
| 2095 | simply pretend that pdr.prof *implies* a lower entry-point. |
| 2096 | This is safe because it just means that may identify 4 NOPs |
| 2097 | in front of the function as belonging to the function. */ |
| 2098 | for (pdr_hold = NULL; |
| 2099 | pdr_ptr < pdr_end; |
| 2100 | (pdr_ptr += external_pdr_size, |
| 2101 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr))) |
| 2102 | { |
| 2103 | if (offset >= (pdr.adr - 0x10 * pdr.prof)) |
| 2104 | { |
| 2105 | dist = offset - (pdr.adr - 0x10 * pdr.prof); |
| 2106 | if (!pdr_hold || dist < min_dist) |
| 2107 | { |
| 2108 | min_dist = dist; |
| 2109 | pdr_hold = pdr_ptr; |
| 2110 | } |
| 2111 | } |
| 2112 | } |
| 2113 | |
| 2114 | if (!best_pdr || min_dist < best_dist) |
| 2115 | { |
| 2116 | best_dist = min_dist; |
| 2117 | best_fdr = fdr_ptr; |
| 2118 | best_pdr = pdr_hold; |
| 2119 | } |
| 2120 | /* continue looping until base_addr of next entry is different: */ |
| 2121 | } |
| 2122 | while (++i < line_info->fdrtab_len |
| 2123 | && tab[i].base_addr == tab[i - 1].base_addr); |
| 2124 | |
| 2125 | if (!best_fdr || !best_pdr) |
| 2126 | return false; /* shouldn't happen... */ |
| 2127 | |
| 2128 | /* phew, finally we got something that we can hold onto: */ |
| 2129 | fdr_ptr = best_fdr; |
| 2130 | pdr_ptr = best_pdr; |
| 2131 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
| 2132 | /* Now we can look for the actual line number. The line numbers |
| 2133 | are stored in a very funky format, which I won't try to |
| 2134 | describe. The search is bounded by the end of the FDRs line |
| 2135 | number entries. */ |
| 2136 | line_end = debug_info->line + fdr_ptr->cbLineOffset + fdr_ptr->cbLine; |
| 2137 | |
| 2138 | /* Make offset relative to procedure entry: */ |
| 2139 | offset -= pdr.adr - 0x10 * pdr.prof; |
| 2140 | lineno = pdr.lnLow; |
| 2141 | line_ptr = debug_info->line + fdr_ptr->cbLineOffset + pdr.cbLineOffset; |
| 2142 | while (line_ptr < line_end) |
| 2143 | { |
| 2144 | int delta; |
| 2145 | unsigned int count; |
| 2146 | |
| 2147 | delta = *line_ptr >> 4; |
| 2148 | if (delta >= 0x8) |
| 2149 | delta -= 0x10; |
| 2150 | count = (*line_ptr & 0xf) + 1; |
| 2151 | ++line_ptr; |
| 2152 | if (delta == -8) |
| 2153 | { |
| 2154 | delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff); |
| 2155 | if (delta >= 0x8000) |
| 2156 | delta -= 0x10000; |
| 2157 | line_ptr += 2; |
| 2158 | } |
| 2159 | lineno += delta; |
| 2160 | if (offset < count * 4) |
| 2161 | { |
| 2162 | line_info->cache.stop += count * 4 - offset; |
| 2163 | break; |
| 2164 | } |
| 2165 | offset -= count * 4; |
| 2166 | } |
| 2167 | |
| 2168 | /* If fdr_ptr->rss is -1, then this file does not have full |
| 2169 | symbols, at least according to gdb/mipsread.c. */ |
| 2170 | if (fdr_ptr->rss == -1) |
| 2171 | { |
| 2172 | line_info->cache.filename = NULL; |
| 2173 | if (pdr.isym == -1) |
| 2174 | line_info->cache.functionname = NULL; |
| 2175 | else |
| 2176 | { |
| 2177 | EXTR proc_ext; |
| 2178 | |
| 2179 | (*debug_swap->swap_ext_in) |
| 2180 | (abfd, |
| 2181 | ((char *) debug_info->external_ext |
| 2182 | + pdr.isym * debug_swap->external_ext_size), |
| 2183 | &proc_ext); |
| 2184 | line_info->cache.functionname = (debug_info->ssext |
| 2185 | + proc_ext.asym.iss); |
| 2186 | } |
| 2187 | } |
| 2188 | else |
| 2189 | { |
| 2190 | SYMR proc_sym; |
| 2191 | |
| 2192 | line_info->cache.filename = (debug_info->ss |
| 2193 | + fdr_ptr->issBase |
| 2194 | + fdr_ptr->rss); |
| 2195 | (*debug_swap->swap_sym_in) |
| 2196 | (abfd, |
| 2197 | ((char *) debug_info->external_sym |
| 2198 | + ((fdr_ptr->isymBase + pdr.isym) |
| 2199 | * debug_swap->external_sym_size)), |
| 2200 | &proc_sym); |
| 2201 | line_info->cache.functionname = (debug_info->ss |
| 2202 | + fdr_ptr->issBase |
| 2203 | + proc_sym.iss); |
| 2204 | } |
| 2205 | if (lineno == ilineNil) |
| 2206 | lineno = 0; |
| 2207 | line_info->cache.line_num = lineno; |
| 2208 | } |
| 2209 | else |
| 2210 | { |
| 2211 | bfd_size_type external_sym_size; |
| 2212 | const char *directory_name; |
| 2213 | const char *main_file_name; |
| 2214 | const char *current_file_name; |
| 2215 | const char *function_name; |
| 2216 | const char *line_file_name; |
| 2217 | bfd_vma low_func_vma; |
| 2218 | bfd_vma low_line_vma; |
| 2219 | boolean past_line; |
| 2220 | boolean past_fn; |
| 2221 | char *sym_ptr, *sym_ptr_end; |
| 2222 | size_t len, funclen; |
| 2223 | char *buffer = NULL; |
| 2224 | |
| 2225 | /* This file uses stabs debugging information. When gcc is not |
| 2226 | optimizing, it will put the line number information before |
| 2227 | the function name stabs entry. When gcc is optimizing, it |
| 2228 | will put the stabs entry for all the function first, followed |
| 2229 | by the line number information. (This appears to happen |
| 2230 | because of the two output files used by the -mgpopt switch, |
| 2231 | which is implied by -O). This means that we must keep |
| 2232 | looking through the symbols until we find both a line number |
| 2233 | and a function name which are beyond the address we want. */ |
| 2234 | |
| 2235 | line_info->cache.filename = NULL; |
| 2236 | line_info->cache.functionname = NULL; |
| 2237 | line_info->cache.line_num = 0; |
| 2238 | |
| 2239 | directory_name = NULL; |
| 2240 | main_file_name = NULL; |
| 2241 | current_file_name = NULL; |
| 2242 | function_name = NULL; |
| 2243 | line_file_name = NULL; |
| 2244 | low_func_vma = 0; |
| 2245 | low_line_vma = 0; |
| 2246 | past_line = false; |
| 2247 | past_fn = false; |
| 2248 | |
| 2249 | external_sym_size = debug_swap->external_sym_size; |
| 2250 | |
| 2251 | sym_ptr = ((char *) debug_info->external_sym |
| 2252 | + (fdr_ptr->isymBase + 2) * external_sym_size); |
| 2253 | sym_ptr_end = sym_ptr + (fdr_ptr->csym - 2) * external_sym_size; |
| 2254 | for (; |
| 2255 | sym_ptr < sym_ptr_end && (! past_line || ! past_fn); |
| 2256 | sym_ptr += external_sym_size) |
| 2257 | { |
| 2258 | SYMR sym; |
| 2259 | |
| 2260 | (*debug_swap->swap_sym_in) (abfd, sym_ptr, &sym); |
| 2261 | |
| 2262 | if (ECOFF_IS_STAB (&sym)) |
| 2263 | { |
| 2264 | switch (ECOFF_UNMARK_STAB (sym.index)) |
| 2265 | { |
| 2266 | case N_SO: |
| 2267 | main_file_name = current_file_name = |
| 2268 | debug_info->ss + fdr_ptr->issBase + sym.iss; |
| 2269 | |
| 2270 | /* Check the next symbol to see if it is also an |
| 2271 | N_SO symbol. */ |
| 2272 | if (sym_ptr + external_sym_size < sym_ptr_end) |
| 2273 | { |
| 2274 | SYMR nextsym; |
| 2275 | |
| 2276 | (*debug_swap->swap_sym_in) (abfd, |
| 2277 | sym_ptr + external_sym_size, |
| 2278 | &nextsym); |
| 2279 | if (ECOFF_IS_STAB (&nextsym) |
| 2280 | && ECOFF_UNMARK_STAB (nextsym.index) == N_SO) |
| 2281 | { |
| 2282 | directory_name = current_file_name; |
| 2283 | main_file_name = current_file_name = |
| 2284 | debug_info->ss + fdr_ptr->issBase + nextsym.iss; |
| 2285 | sym_ptr += external_sym_size; |
| 2286 | } |
| 2287 | } |
| 2288 | break; |
| 2289 | |
| 2290 | case N_SOL: |
| 2291 | current_file_name = |
| 2292 | debug_info->ss + fdr_ptr->issBase + sym.iss; |
| 2293 | break; |
| 2294 | |
| 2295 | case N_FUN: |
| 2296 | if (sym.value > offset) |
| 2297 | past_fn = true; |
| 2298 | else if (sym.value >= low_func_vma) |
| 2299 | { |
| 2300 | low_func_vma = sym.value; |
| 2301 | function_name = |
| 2302 | debug_info->ss + fdr_ptr->issBase + sym.iss; |
| 2303 | } |
| 2304 | break; |
| 2305 | } |
| 2306 | } |
| 2307 | else if (sym.st == stLabel && sym.index != indexNil) |
| 2308 | { |
| 2309 | if (sym.value > offset) |
| 2310 | past_line = true; |
| 2311 | else if (sym.value >= low_line_vma) |
| 2312 | { |
| 2313 | low_line_vma = sym.value; |
| 2314 | line_file_name = current_file_name; |
| 2315 | line_info->cache.line_num = sym.index; |
| 2316 | } |
| 2317 | } |
| 2318 | } |
| 2319 | |
| 2320 | if (line_info->cache.line_num != 0) |
| 2321 | main_file_name = line_file_name; |
| 2322 | |
| 2323 | /* We need to remove the stuff after the colon in the function |
| 2324 | name. We also need to put the directory name and the file |
| 2325 | name together. */ |
| 2326 | if (function_name == NULL) |
| 2327 | len = funclen = 0; |
| 2328 | else |
| 2329 | len = funclen = strlen (function_name) + 1; |
| 2330 | |
| 2331 | if (main_file_name != NULL |
| 2332 | && directory_name != NULL |
| 2333 | && main_file_name[0] != '/') |
| 2334 | len += strlen (directory_name) + strlen (main_file_name) + 1; |
| 2335 | |
| 2336 | if (len != 0) |
| 2337 | { |
| 2338 | if (line_info->find_buffer != NULL) |
| 2339 | free (line_info->find_buffer); |
| 2340 | buffer = (char *) bfd_malloc ((bfd_size_type) len); |
| 2341 | if (buffer == NULL) |
| 2342 | return false; |
| 2343 | line_info->find_buffer = buffer; |
| 2344 | } |
| 2345 | |
| 2346 | if (function_name != NULL) |
| 2347 | { |
| 2348 | char *colon; |
| 2349 | |
| 2350 | strcpy (buffer, function_name); |
| 2351 | colon = strchr (buffer, ':'); |
| 2352 | if (colon != NULL) |
| 2353 | *colon = '\0'; |
| 2354 | line_info->cache.functionname = buffer; |
| 2355 | } |
| 2356 | |
| 2357 | if (main_file_name != NULL) |
| 2358 | { |
| 2359 | if (directory_name == NULL || main_file_name[0] == '/') |
| 2360 | line_info->cache.filename = main_file_name; |
| 2361 | else |
| 2362 | { |
| 2363 | sprintf (buffer + funclen, "%s%s", directory_name, |
| 2364 | main_file_name); |
| 2365 | line_info->cache.filename = buffer + funclen; |
| 2366 | } |
| 2367 | } |
| 2368 | } |
| 2369 | |
| 2370 | return true; |
| 2371 | } |
| 2372 | |
| 2373 | /* Do the work of find_nearest_line. */ |
| 2374 | |
| 2375 | boolean |
| 2376 | _bfd_ecoff_locate_line (abfd, section, offset, debug_info, debug_swap, |
| 2377 | line_info, filename_ptr, functionname_ptr, retline_ptr) |
| 2378 | bfd *abfd; |
| 2379 | asection *section; |
| 2380 | bfd_vma offset; |
| 2381 | struct ecoff_debug_info * const debug_info; |
| 2382 | const struct ecoff_debug_swap * const debug_swap; |
| 2383 | struct ecoff_find_line *line_info; |
| 2384 | const char **filename_ptr; |
| 2385 | const char **functionname_ptr; |
| 2386 | unsigned int *retline_ptr; |
| 2387 | { |
| 2388 | offset += section->vma; |
| 2389 | |
| 2390 | if (line_info->cache.sect == NULL |
| 2391 | || line_info->cache.sect != section |
| 2392 | || offset < line_info->cache.start |
| 2393 | || offset >= line_info->cache.stop) |
| 2394 | { |
| 2395 | line_info->cache.sect = section; |
| 2396 | line_info->cache.start = offset; |
| 2397 | line_info->cache.stop = offset; |
| 2398 | if (! lookup_line (abfd, debug_info, debug_swap, line_info)) |
| 2399 | { |
| 2400 | line_info->cache.sect = NULL; |
| 2401 | return false; |
| 2402 | } |
| 2403 | } |
| 2404 | |
| 2405 | *filename_ptr = line_info->cache.filename; |
| 2406 | *functionname_ptr = line_info->cache.functionname; |
| 2407 | *retline_ptr = line_info->cache.line_num; |
| 2408 | |
| 2409 | return true; |
| 2410 | } |
| 2411 | \f |
| 2412 | /* These routines copy symbolic information into a memory buffer. |
| 2413 | |
| 2414 | FIXME: The whole point of the shuffle code is to avoid storing |
| 2415 | everything in memory, since the linker is such a memory hog. This |
| 2416 | code makes that effort useless. It is only called by the MIPS ELF |
| 2417 | code when generating a shared library, so it is not that big a |
| 2418 | deal, but it should be fixed eventually. */ |
| 2419 | |
| 2420 | /* Collect a shuffle into a memory buffer. */ |
| 2421 | |
| 2422 | static boolean ecoff_collect_shuffle PARAMS ((struct shuffle *, bfd_byte *)); |
| 2423 | |
| 2424 | static boolean |
| 2425 | ecoff_collect_shuffle (l, buff) |
| 2426 | struct shuffle *l; |
| 2427 | bfd_byte *buff; |
| 2428 | { |
| 2429 | unsigned long total; |
| 2430 | |
| 2431 | total = 0; |
| 2432 | for (; l != (struct shuffle *) NULL; l = l->next) |
| 2433 | { |
| 2434 | if (! l->filep) |
| 2435 | memcpy (buff, l->u.memory, l->size); |
| 2436 | else |
| 2437 | { |
| 2438 | if (bfd_seek (l->u.file.input_bfd, l->u.file.offset, SEEK_SET) != 0 |
| 2439 | || (bfd_bread (buff, (bfd_size_type) l->size, l->u.file.input_bfd) |
| 2440 | != l->size)) |
| 2441 | return false; |
| 2442 | } |
| 2443 | total += l->size; |
| 2444 | buff += l->size; |
| 2445 | } |
| 2446 | |
| 2447 | return true; |
| 2448 | } |
| 2449 | |
| 2450 | /* Copy PDR information into a memory buffer. */ |
| 2451 | |
| 2452 | boolean |
| 2453 | _bfd_ecoff_get_accumulated_pdr (handle, buff) |
| 2454 | PTR handle; |
| 2455 | bfd_byte *buff; |
| 2456 | { |
| 2457 | struct accumulate *ainfo = (struct accumulate *) handle; |
| 2458 | |
| 2459 | return ecoff_collect_shuffle (ainfo->pdr, buff); |
| 2460 | } |
| 2461 | |
| 2462 | /* Copy symbol information into a memory buffer. */ |
| 2463 | |
| 2464 | boolean |
| 2465 | _bfd_ecoff_get_accumulated_sym (handle, buff) |
| 2466 | PTR handle; |
| 2467 | bfd_byte *buff; |
| 2468 | { |
| 2469 | struct accumulate *ainfo = (struct accumulate *) handle; |
| 2470 | |
| 2471 | return ecoff_collect_shuffle (ainfo->sym, buff); |
| 2472 | } |
| 2473 | |
| 2474 | /* Copy the string table into a memory buffer. */ |
| 2475 | |
| 2476 | boolean |
| 2477 | _bfd_ecoff_get_accumulated_ss (handle, buff) |
| 2478 | PTR handle; |
| 2479 | bfd_byte *buff; |
| 2480 | { |
| 2481 | struct accumulate *ainfo = (struct accumulate *) handle; |
| 2482 | struct string_hash_entry *sh; |
| 2483 | unsigned long total; |
| 2484 | |
| 2485 | /* The string table is written out from the hash table if this is a |
| 2486 | final link. */ |
| 2487 | BFD_ASSERT (ainfo->ss == (struct shuffle *) NULL); |
| 2488 | *buff++ = '\0'; |
| 2489 | total = 1; |
| 2490 | BFD_ASSERT (ainfo->ss_hash == NULL || ainfo->ss_hash->val == 1); |
| 2491 | for (sh = ainfo->ss_hash; |
| 2492 | sh != (struct string_hash_entry *) NULL; |
| 2493 | sh = sh->next) |
| 2494 | { |
| 2495 | size_t len; |
| 2496 | |
| 2497 | len = strlen (sh->root.string); |
| 2498 | memcpy (buff, (PTR) sh->root.string, len + 1); |
| 2499 | total += len + 1; |
| 2500 | buff += len + 1; |
| 2501 | } |
| 2502 | |
| 2503 | return true; |
| 2504 | } |