| 1 | /* dwarf.c -- display DWARF contents of a BFD binary file |
| 2 | Copyright 2005, 2006, 2007, 2008 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Binutils. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
| 20 | 02110-1301, USA. */ |
| 21 | |
| 22 | #include "sysdep.h" |
| 23 | #include "libiberty.h" |
| 24 | #include "bfd.h" |
| 25 | #include "bucomm.h" |
| 26 | #include "elf/common.h" |
| 27 | #include "dwarf2.h" |
| 28 | #include "dwarf.h" |
| 29 | |
| 30 | static int have_frame_base; |
| 31 | static int need_base_address; |
| 32 | |
| 33 | static unsigned int last_pointer_size = 0; |
| 34 | static int warned_about_missing_comp_units = FALSE; |
| 35 | |
| 36 | static unsigned int num_debug_info_entries = 0; |
| 37 | static debug_info *debug_information = NULL; |
| 38 | /* Special value for num_debug_info_entries to indicate |
| 39 | that the .debug_info section could not be loaded/parsed. */ |
| 40 | #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1 |
| 41 | |
| 42 | int eh_addr_size; |
| 43 | |
| 44 | int do_debug_info; |
| 45 | int do_debug_abbrevs; |
| 46 | int do_debug_lines; |
| 47 | int do_debug_pubnames; |
| 48 | int do_debug_aranges; |
| 49 | int do_debug_ranges; |
| 50 | int do_debug_frames; |
| 51 | int do_debug_frames_interp; |
| 52 | int do_debug_macinfo; |
| 53 | int do_debug_str; |
| 54 | int do_debug_loc; |
| 55 | int do_wide; |
| 56 | |
| 57 | /* Values for do_debug_lines. */ |
| 58 | #define FLAG_DEBUG_LINES_RAW 1 |
| 59 | #define FLAG_DEBUG_LINES_DECODED 2 |
| 60 | |
| 61 | dwarf_vma (*byte_get) (unsigned char *, int); |
| 62 | |
| 63 | dwarf_vma |
| 64 | byte_get_little_endian (unsigned char *field, int size) |
| 65 | { |
| 66 | switch (size) |
| 67 | { |
| 68 | case 1: |
| 69 | return *field; |
| 70 | |
| 71 | case 2: |
| 72 | return ((unsigned int) (field[0])) |
| 73 | | (((unsigned int) (field[1])) << 8); |
| 74 | |
| 75 | case 4: |
| 76 | return ((unsigned long) (field[0])) |
| 77 | | (((unsigned long) (field[1])) << 8) |
| 78 | | (((unsigned long) (field[2])) << 16) |
| 79 | | (((unsigned long) (field[3])) << 24); |
| 80 | |
| 81 | case 8: |
| 82 | if (sizeof (dwarf_vma) == 8) |
| 83 | return ((dwarf_vma) (field[0])) |
| 84 | | (((dwarf_vma) (field[1])) << 8) |
| 85 | | (((dwarf_vma) (field[2])) << 16) |
| 86 | | (((dwarf_vma) (field[3])) << 24) |
| 87 | | (((dwarf_vma) (field[4])) << 32) |
| 88 | | (((dwarf_vma) (field[5])) << 40) |
| 89 | | (((dwarf_vma) (field[6])) << 48) |
| 90 | | (((dwarf_vma) (field[7])) << 56); |
| 91 | else if (sizeof (dwarf_vma) == 4) |
| 92 | /* We want to extract data from an 8 byte wide field and |
| 93 | place it into a 4 byte wide field. Since this is a little |
| 94 | endian source we can just use the 4 byte extraction code. */ |
| 95 | return ((unsigned long) (field[0])) |
| 96 | | (((unsigned long) (field[1])) << 8) |
| 97 | | (((unsigned long) (field[2])) << 16) |
| 98 | | (((unsigned long) (field[3])) << 24); |
| 99 | |
| 100 | default: |
| 101 | error (_("Unhandled data length: %d\n"), size); |
| 102 | abort (); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | dwarf_vma |
| 107 | byte_get_big_endian (unsigned char *field, int size) |
| 108 | { |
| 109 | switch (size) |
| 110 | { |
| 111 | case 1: |
| 112 | return *field; |
| 113 | |
| 114 | case 2: |
| 115 | return ((unsigned int) (field[1])) | (((int) (field[0])) << 8); |
| 116 | |
| 117 | case 4: |
| 118 | return ((unsigned long) (field[3])) |
| 119 | | (((unsigned long) (field[2])) << 8) |
| 120 | | (((unsigned long) (field[1])) << 16) |
| 121 | | (((unsigned long) (field[0])) << 24); |
| 122 | |
| 123 | case 8: |
| 124 | if (sizeof (dwarf_vma) == 8) |
| 125 | return ((dwarf_vma) (field[7])) |
| 126 | | (((dwarf_vma) (field[6])) << 8) |
| 127 | | (((dwarf_vma) (field[5])) << 16) |
| 128 | | (((dwarf_vma) (field[4])) << 24) |
| 129 | | (((dwarf_vma) (field[3])) << 32) |
| 130 | | (((dwarf_vma) (field[2])) << 40) |
| 131 | | (((dwarf_vma) (field[1])) << 48) |
| 132 | | (((dwarf_vma) (field[0])) << 56); |
| 133 | else if (sizeof (dwarf_vma) == 4) |
| 134 | { |
| 135 | /* Although we are extracing data from an 8 byte wide field, |
| 136 | we are returning only 4 bytes of data. */ |
| 137 | field += 4; |
| 138 | return ((unsigned long) (field[3])) |
| 139 | | (((unsigned long) (field[2])) << 8) |
| 140 | | (((unsigned long) (field[1])) << 16) |
| 141 | | (((unsigned long) (field[0])) << 24); |
| 142 | } |
| 143 | |
| 144 | default: |
| 145 | error (_("Unhandled data length: %d\n"), size); |
| 146 | abort (); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | static dwarf_vma |
| 151 | byte_get_signed (unsigned char *field, int size) |
| 152 | { |
| 153 | dwarf_vma x = byte_get (field, size); |
| 154 | |
| 155 | switch (size) |
| 156 | { |
| 157 | case 1: |
| 158 | return (x ^ 0x80) - 0x80; |
| 159 | case 2: |
| 160 | return (x ^ 0x8000) - 0x8000; |
| 161 | case 4: |
| 162 | return (x ^ 0x80000000) - 0x80000000; |
| 163 | case 8: |
| 164 | return x; |
| 165 | default: |
| 166 | abort (); |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | static int |
| 171 | size_of_encoded_value (int encoding) |
| 172 | { |
| 173 | switch (encoding & 0x7) |
| 174 | { |
| 175 | default: /* ??? */ |
| 176 | case 0: return eh_addr_size; |
| 177 | case 2: return 2; |
| 178 | case 3: return 4; |
| 179 | case 4: return 8; |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | static dwarf_vma |
| 184 | get_encoded_value (unsigned char *data, int encoding) |
| 185 | { |
| 186 | int size = size_of_encoded_value (encoding); |
| 187 | |
| 188 | if (encoding & DW_EH_PE_signed) |
| 189 | return byte_get_signed (data, size); |
| 190 | else |
| 191 | return byte_get (data, size); |
| 192 | } |
| 193 | |
| 194 | /* Print a dwarf_vma value (typically an address, offset or length) in |
| 195 | hexadecimal format, followed by a space. The length of the value (and |
| 196 | hence the precision displayed) is determined by the byte_size parameter. */ |
| 197 | |
| 198 | static void |
| 199 | print_dwarf_vma (dwarf_vma val, unsigned byte_size) |
| 200 | { |
| 201 | static char buff[18]; |
| 202 | |
| 203 | /* Printf does not have a way of specifiying a maximum field width for an |
| 204 | integer value, so we print the full value into a buffer and then select |
| 205 | the precision we need. */ |
| 206 | #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2) |
| 207 | #ifndef __MSVCRT__ |
| 208 | snprintf (buff, sizeof (buff), "%16.16llx ", val); |
| 209 | #else |
| 210 | snprintf (buff, sizeof (buff), "%016I64x ", val); |
| 211 | #endif |
| 212 | #else |
| 213 | snprintf (buff, sizeof (buff), "%16.16lx ", val); |
| 214 | #endif |
| 215 | |
| 216 | fputs (buff + (byte_size == 4 ? 8 : 0), stdout); |
| 217 | } |
| 218 | |
| 219 | static unsigned long int |
| 220 | read_leb128 (unsigned char *data, unsigned int *length_return, int sign) |
| 221 | { |
| 222 | unsigned long int result = 0; |
| 223 | unsigned int num_read = 0; |
| 224 | unsigned int shift = 0; |
| 225 | unsigned char byte; |
| 226 | |
| 227 | do |
| 228 | { |
| 229 | byte = *data++; |
| 230 | num_read++; |
| 231 | |
| 232 | result |= ((unsigned long int) (byte & 0x7f)) << shift; |
| 233 | |
| 234 | shift += 7; |
| 235 | |
| 236 | } |
| 237 | while (byte & 0x80); |
| 238 | |
| 239 | if (length_return != NULL) |
| 240 | *length_return = num_read; |
| 241 | |
| 242 | if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40)) |
| 243 | result |= -1L << shift; |
| 244 | |
| 245 | return result; |
| 246 | } |
| 247 | |
| 248 | typedef struct State_Machine_Registers |
| 249 | { |
| 250 | unsigned long address; |
| 251 | unsigned int file; |
| 252 | unsigned int line; |
| 253 | unsigned int column; |
| 254 | int is_stmt; |
| 255 | int basic_block; |
| 256 | int end_sequence; |
| 257 | /* This variable hold the number of the last entry seen |
| 258 | in the File Table. */ |
| 259 | unsigned int last_file_entry; |
| 260 | } SMR; |
| 261 | |
| 262 | static SMR state_machine_regs; |
| 263 | |
| 264 | static void |
| 265 | reset_state_machine (int is_stmt) |
| 266 | { |
| 267 | state_machine_regs.address = 0; |
| 268 | state_machine_regs.file = 1; |
| 269 | state_machine_regs.line = 1; |
| 270 | state_machine_regs.column = 0; |
| 271 | state_machine_regs.is_stmt = is_stmt; |
| 272 | state_machine_regs.basic_block = 0; |
| 273 | state_machine_regs.end_sequence = 0; |
| 274 | state_machine_regs.last_file_entry = 0; |
| 275 | } |
| 276 | |
| 277 | /* Handled an extend line op. |
| 278 | Returns the number of bytes read. */ |
| 279 | |
| 280 | static int |
| 281 | process_extended_line_op (unsigned char *data, int is_stmt) |
| 282 | { |
| 283 | unsigned char op_code; |
| 284 | unsigned int bytes_read; |
| 285 | unsigned int len; |
| 286 | unsigned char *name; |
| 287 | unsigned long adr; |
| 288 | |
| 289 | len = read_leb128 (data, & bytes_read, 0); |
| 290 | data += bytes_read; |
| 291 | |
| 292 | if (len == 0) |
| 293 | { |
| 294 | warn (_("badly formed extended line op encountered!\n")); |
| 295 | return bytes_read; |
| 296 | } |
| 297 | |
| 298 | len += bytes_read; |
| 299 | op_code = *data++; |
| 300 | |
| 301 | printf (_(" Extended opcode %d: "), op_code); |
| 302 | |
| 303 | switch (op_code) |
| 304 | { |
| 305 | case DW_LNE_end_sequence: |
| 306 | printf (_("End of Sequence\n\n")); |
| 307 | reset_state_machine (is_stmt); |
| 308 | break; |
| 309 | |
| 310 | case DW_LNE_set_address: |
| 311 | adr = byte_get (data, len - bytes_read - 1); |
| 312 | printf (_("set Address to 0x%lx\n"), adr); |
| 313 | state_machine_regs.address = adr; |
| 314 | break; |
| 315 | |
| 316 | case DW_LNE_define_file: |
| 317 | printf (_(" define new File Table entry\n")); |
| 318 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); |
| 319 | |
| 320 | printf (_(" %d\t"), ++state_machine_regs.last_file_entry); |
| 321 | name = data; |
| 322 | data += strlen ((char *) data) + 1; |
| 323 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); |
| 324 | data += bytes_read; |
| 325 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); |
| 326 | data += bytes_read; |
| 327 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); |
| 328 | printf (_("%s\n\n"), name); |
| 329 | break; |
| 330 | |
| 331 | case DW_LNE_set_discriminator: |
| 332 | printf (_("set Discriminator to %lu\n"), |
| 333 | read_leb128 (data, & bytes_read, 0)); |
| 334 | break; |
| 335 | |
| 336 | /* HP extensions. */ |
| 337 | case DW_LNE_HP_negate_is_UV_update: |
| 338 | printf ("DW_LNE_HP_negate_is_UV_update\n"); |
| 339 | break; |
| 340 | case DW_LNE_HP_push_context: |
| 341 | printf ("DW_LNE_HP_push_context\n"); |
| 342 | break; |
| 343 | case DW_LNE_HP_pop_context: |
| 344 | printf ("DW_LNE_HP_pop_context\n"); |
| 345 | break; |
| 346 | case DW_LNE_HP_set_file_line_column: |
| 347 | printf ("DW_LNE_HP_set_file_line_column\n"); |
| 348 | break; |
| 349 | case DW_LNE_HP_set_routine_name: |
| 350 | printf ("DW_LNE_HP_set_routine_name\n"); |
| 351 | break; |
| 352 | case DW_LNE_HP_set_sequence: |
| 353 | printf ("DW_LNE_HP_set_sequence\n"); |
| 354 | break; |
| 355 | case DW_LNE_HP_negate_post_semantics: |
| 356 | printf ("DW_LNE_HP_negate_post_semantics\n"); |
| 357 | break; |
| 358 | case DW_LNE_HP_negate_function_exit: |
| 359 | printf ("DW_LNE_HP_negate_function_exit\n"); |
| 360 | break; |
| 361 | case DW_LNE_HP_negate_front_end_logical: |
| 362 | printf ("DW_LNE_HP_negate_front_end_logical\n"); |
| 363 | break; |
| 364 | case DW_LNE_HP_define_proc: |
| 365 | printf ("DW_LNE_HP_define_proc\n"); |
| 366 | break; |
| 367 | |
| 368 | default: |
| 369 | if (op_code >= DW_LNE_lo_user |
| 370 | /* The test against DW_LNW_hi_user is redundant due to |
| 371 | the limited range of the unsigned char data type used |
| 372 | for op_code. */ |
| 373 | /*&& op_code <= DW_LNE_hi_user*/) |
| 374 | printf (_("user defined: length %d\n"), len - bytes_read); |
| 375 | else |
| 376 | printf (_("UNKNOWN: length %d\n"), len - bytes_read); |
| 377 | break; |
| 378 | } |
| 379 | |
| 380 | return len; |
| 381 | } |
| 382 | |
| 383 | static const char * |
| 384 | fetch_indirect_string (unsigned long offset) |
| 385 | { |
| 386 | struct dwarf_section *section = &debug_displays [str].section; |
| 387 | |
| 388 | if (section->start == NULL) |
| 389 | return _("<no .debug_str section>"); |
| 390 | |
| 391 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 392 | offset -= section->address; |
| 393 | if (offset > section->size) |
| 394 | { |
| 395 | warn (_("DW_FORM_strp offset too big: %lx\n"), offset); |
| 396 | return _("<offset is too big>"); |
| 397 | } |
| 398 | |
| 399 | return (const char *) section->start + offset; |
| 400 | } |
| 401 | |
| 402 | /* FIXME: There are better and more efficient ways to handle |
| 403 | these structures. For now though, I just want something that |
| 404 | is simple to implement. */ |
| 405 | typedef struct abbrev_attr |
| 406 | { |
| 407 | unsigned long attribute; |
| 408 | unsigned long form; |
| 409 | struct abbrev_attr *next; |
| 410 | } |
| 411 | abbrev_attr; |
| 412 | |
| 413 | typedef struct abbrev_entry |
| 414 | { |
| 415 | unsigned long entry; |
| 416 | unsigned long tag; |
| 417 | int children; |
| 418 | struct abbrev_attr *first_attr; |
| 419 | struct abbrev_attr *last_attr; |
| 420 | struct abbrev_entry *next; |
| 421 | } |
| 422 | abbrev_entry; |
| 423 | |
| 424 | static abbrev_entry *first_abbrev = NULL; |
| 425 | static abbrev_entry *last_abbrev = NULL; |
| 426 | |
| 427 | static void |
| 428 | free_abbrevs (void) |
| 429 | { |
| 430 | abbrev_entry *abbrev; |
| 431 | |
| 432 | for (abbrev = first_abbrev; abbrev;) |
| 433 | { |
| 434 | abbrev_entry *next = abbrev->next; |
| 435 | abbrev_attr *attr; |
| 436 | |
| 437 | for (attr = abbrev->first_attr; attr;) |
| 438 | { |
| 439 | abbrev_attr *next = attr->next; |
| 440 | |
| 441 | free (attr); |
| 442 | attr = next; |
| 443 | } |
| 444 | |
| 445 | free (abbrev); |
| 446 | abbrev = next; |
| 447 | } |
| 448 | |
| 449 | last_abbrev = first_abbrev = NULL; |
| 450 | } |
| 451 | |
| 452 | static void |
| 453 | add_abbrev (unsigned long number, unsigned long tag, int children) |
| 454 | { |
| 455 | abbrev_entry *entry; |
| 456 | |
| 457 | entry = malloc (sizeof (*entry)); |
| 458 | |
| 459 | if (entry == NULL) |
| 460 | /* ugg */ |
| 461 | return; |
| 462 | |
| 463 | entry->entry = number; |
| 464 | entry->tag = tag; |
| 465 | entry->children = children; |
| 466 | entry->first_attr = NULL; |
| 467 | entry->last_attr = NULL; |
| 468 | entry->next = NULL; |
| 469 | |
| 470 | if (first_abbrev == NULL) |
| 471 | first_abbrev = entry; |
| 472 | else |
| 473 | last_abbrev->next = entry; |
| 474 | |
| 475 | last_abbrev = entry; |
| 476 | } |
| 477 | |
| 478 | static void |
| 479 | add_abbrev_attr (unsigned long attribute, unsigned long form) |
| 480 | { |
| 481 | abbrev_attr *attr; |
| 482 | |
| 483 | attr = malloc (sizeof (*attr)); |
| 484 | |
| 485 | if (attr == NULL) |
| 486 | /* ugg */ |
| 487 | return; |
| 488 | |
| 489 | attr->attribute = attribute; |
| 490 | attr->form = form; |
| 491 | attr->next = NULL; |
| 492 | |
| 493 | if (last_abbrev->first_attr == NULL) |
| 494 | last_abbrev->first_attr = attr; |
| 495 | else |
| 496 | last_abbrev->last_attr->next = attr; |
| 497 | |
| 498 | last_abbrev->last_attr = attr; |
| 499 | } |
| 500 | |
| 501 | /* Processes the (partial) contents of a .debug_abbrev section. |
| 502 | Returns NULL if the end of the section was encountered. |
| 503 | Returns the address after the last byte read if the end of |
| 504 | an abbreviation set was found. */ |
| 505 | |
| 506 | static unsigned char * |
| 507 | process_abbrev_section (unsigned char *start, unsigned char *end) |
| 508 | { |
| 509 | if (first_abbrev != NULL) |
| 510 | return NULL; |
| 511 | |
| 512 | while (start < end) |
| 513 | { |
| 514 | unsigned int bytes_read; |
| 515 | unsigned long entry; |
| 516 | unsigned long tag; |
| 517 | unsigned long attribute; |
| 518 | int children; |
| 519 | |
| 520 | entry = read_leb128 (start, & bytes_read, 0); |
| 521 | start += bytes_read; |
| 522 | |
| 523 | /* A single zero is supposed to end the section according |
| 524 | to the standard. If there's more, then signal that to |
| 525 | the caller. */ |
| 526 | if (entry == 0) |
| 527 | return start == end ? NULL : start; |
| 528 | |
| 529 | tag = read_leb128 (start, & bytes_read, 0); |
| 530 | start += bytes_read; |
| 531 | |
| 532 | children = *start++; |
| 533 | |
| 534 | add_abbrev (entry, tag, children); |
| 535 | |
| 536 | do |
| 537 | { |
| 538 | unsigned long form; |
| 539 | |
| 540 | attribute = read_leb128 (start, & bytes_read, 0); |
| 541 | start += bytes_read; |
| 542 | |
| 543 | form = read_leb128 (start, & bytes_read, 0); |
| 544 | start += bytes_read; |
| 545 | |
| 546 | if (attribute != 0) |
| 547 | add_abbrev_attr (attribute, form); |
| 548 | } |
| 549 | while (attribute != 0); |
| 550 | } |
| 551 | |
| 552 | return NULL; |
| 553 | } |
| 554 | |
| 555 | static char * |
| 556 | get_TAG_name (unsigned long tag) |
| 557 | { |
| 558 | switch (tag) |
| 559 | { |
| 560 | case DW_TAG_padding: return "DW_TAG_padding"; |
| 561 | case DW_TAG_array_type: return "DW_TAG_array_type"; |
| 562 | case DW_TAG_class_type: return "DW_TAG_class_type"; |
| 563 | case DW_TAG_entry_point: return "DW_TAG_entry_point"; |
| 564 | case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type"; |
| 565 | case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter"; |
| 566 | case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration"; |
| 567 | case DW_TAG_label: return "DW_TAG_label"; |
| 568 | case DW_TAG_lexical_block: return "DW_TAG_lexical_block"; |
| 569 | case DW_TAG_member: return "DW_TAG_member"; |
| 570 | case DW_TAG_pointer_type: return "DW_TAG_pointer_type"; |
| 571 | case DW_TAG_reference_type: return "DW_TAG_reference_type"; |
| 572 | case DW_TAG_compile_unit: return "DW_TAG_compile_unit"; |
| 573 | case DW_TAG_string_type: return "DW_TAG_string_type"; |
| 574 | case DW_TAG_structure_type: return "DW_TAG_structure_type"; |
| 575 | case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type"; |
| 576 | case DW_TAG_typedef: return "DW_TAG_typedef"; |
| 577 | case DW_TAG_union_type: return "DW_TAG_union_type"; |
| 578 | case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters"; |
| 579 | case DW_TAG_variant: return "DW_TAG_variant"; |
| 580 | case DW_TAG_common_block: return "DW_TAG_common_block"; |
| 581 | case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion"; |
| 582 | case DW_TAG_inheritance: return "DW_TAG_inheritance"; |
| 583 | case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine"; |
| 584 | case DW_TAG_module: return "DW_TAG_module"; |
| 585 | case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type"; |
| 586 | case DW_TAG_set_type: return "DW_TAG_set_type"; |
| 587 | case DW_TAG_subrange_type: return "DW_TAG_subrange_type"; |
| 588 | case DW_TAG_with_stmt: return "DW_TAG_with_stmt"; |
| 589 | case DW_TAG_access_declaration: return "DW_TAG_access_declaration"; |
| 590 | case DW_TAG_base_type: return "DW_TAG_base_type"; |
| 591 | case DW_TAG_catch_block: return "DW_TAG_catch_block"; |
| 592 | case DW_TAG_const_type: return "DW_TAG_const_type"; |
| 593 | case DW_TAG_constant: return "DW_TAG_constant"; |
| 594 | case DW_TAG_enumerator: return "DW_TAG_enumerator"; |
| 595 | case DW_TAG_file_type: return "DW_TAG_file_type"; |
| 596 | case DW_TAG_friend: return "DW_TAG_friend"; |
| 597 | case DW_TAG_namelist: return "DW_TAG_namelist"; |
| 598 | case DW_TAG_namelist_item: return "DW_TAG_namelist_item"; |
| 599 | case DW_TAG_packed_type: return "DW_TAG_packed_type"; |
| 600 | case DW_TAG_subprogram: return "DW_TAG_subprogram"; |
| 601 | case DW_TAG_template_type_param: return "DW_TAG_template_type_param"; |
| 602 | case DW_TAG_template_value_param: return "DW_TAG_template_value_param"; |
| 603 | case DW_TAG_thrown_type: return "DW_TAG_thrown_type"; |
| 604 | case DW_TAG_try_block: return "DW_TAG_try_block"; |
| 605 | case DW_TAG_variant_part: return "DW_TAG_variant_part"; |
| 606 | case DW_TAG_variable: return "DW_TAG_variable"; |
| 607 | case DW_TAG_volatile_type: return "DW_TAG_volatile_type"; |
| 608 | case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop"; |
| 609 | case DW_TAG_format_label: return "DW_TAG_format_label"; |
| 610 | case DW_TAG_function_template: return "DW_TAG_function_template"; |
| 611 | case DW_TAG_class_template: return "DW_TAG_class_template"; |
| 612 | /* DWARF 2.1 values. */ |
| 613 | case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure"; |
| 614 | case DW_TAG_restrict_type: return "DW_TAG_restrict_type"; |
| 615 | case DW_TAG_interface_type: return "DW_TAG_interface_type"; |
| 616 | case DW_TAG_namespace: return "DW_TAG_namespace"; |
| 617 | case DW_TAG_imported_module: return "DW_TAG_imported_module"; |
| 618 | case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type"; |
| 619 | case DW_TAG_partial_unit: return "DW_TAG_partial_unit"; |
| 620 | case DW_TAG_imported_unit: return "DW_TAG_imported_unit"; |
| 621 | /* UPC values. */ |
| 622 | case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type"; |
| 623 | case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type"; |
| 624 | case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type"; |
| 625 | default: |
| 626 | { |
| 627 | static char buffer[100]; |
| 628 | |
| 629 | snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag); |
| 630 | return buffer; |
| 631 | } |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | static char * |
| 636 | get_FORM_name (unsigned long form) |
| 637 | { |
| 638 | switch (form) |
| 639 | { |
| 640 | case DW_FORM_addr: return "DW_FORM_addr"; |
| 641 | case DW_FORM_block2: return "DW_FORM_block2"; |
| 642 | case DW_FORM_block4: return "DW_FORM_block4"; |
| 643 | case DW_FORM_data2: return "DW_FORM_data2"; |
| 644 | case DW_FORM_data4: return "DW_FORM_data4"; |
| 645 | case DW_FORM_data8: return "DW_FORM_data8"; |
| 646 | case DW_FORM_string: return "DW_FORM_string"; |
| 647 | case DW_FORM_block: return "DW_FORM_block"; |
| 648 | case DW_FORM_block1: return "DW_FORM_block1"; |
| 649 | case DW_FORM_data1: return "DW_FORM_data1"; |
| 650 | case DW_FORM_flag: return "DW_FORM_flag"; |
| 651 | case DW_FORM_sdata: return "DW_FORM_sdata"; |
| 652 | case DW_FORM_strp: return "DW_FORM_strp"; |
| 653 | case DW_FORM_udata: return "DW_FORM_udata"; |
| 654 | case DW_FORM_ref_addr: return "DW_FORM_ref_addr"; |
| 655 | case DW_FORM_ref1: return "DW_FORM_ref1"; |
| 656 | case DW_FORM_ref2: return "DW_FORM_ref2"; |
| 657 | case DW_FORM_ref4: return "DW_FORM_ref4"; |
| 658 | case DW_FORM_ref8: return "DW_FORM_ref8"; |
| 659 | case DW_FORM_ref_udata: return "DW_FORM_ref_udata"; |
| 660 | case DW_FORM_indirect: return "DW_FORM_indirect"; |
| 661 | default: |
| 662 | { |
| 663 | static char buffer[100]; |
| 664 | |
| 665 | snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form); |
| 666 | return buffer; |
| 667 | } |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | static unsigned char * |
| 672 | display_block (unsigned char *data, unsigned long length) |
| 673 | { |
| 674 | printf (_(" %lu byte block: "), length); |
| 675 | |
| 676 | while (length --) |
| 677 | printf ("%lx ", (unsigned long) byte_get (data++, 1)); |
| 678 | |
| 679 | return data; |
| 680 | } |
| 681 | |
| 682 | static int |
| 683 | decode_location_expression (unsigned char * data, |
| 684 | unsigned int pointer_size, |
| 685 | unsigned long length, |
| 686 | unsigned long cu_offset, |
| 687 | struct dwarf_section * section) |
| 688 | { |
| 689 | unsigned op; |
| 690 | unsigned int bytes_read; |
| 691 | unsigned long uvalue; |
| 692 | unsigned char *end = data + length; |
| 693 | int need_frame_base = 0; |
| 694 | |
| 695 | while (data < end) |
| 696 | { |
| 697 | op = *data++; |
| 698 | |
| 699 | switch (op) |
| 700 | { |
| 701 | case DW_OP_addr: |
| 702 | printf ("DW_OP_addr: %lx", |
| 703 | (unsigned long) byte_get (data, pointer_size)); |
| 704 | data += pointer_size; |
| 705 | break; |
| 706 | case DW_OP_deref: |
| 707 | printf ("DW_OP_deref"); |
| 708 | break; |
| 709 | case DW_OP_const1u: |
| 710 | printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1)); |
| 711 | break; |
| 712 | case DW_OP_const1s: |
| 713 | printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1)); |
| 714 | break; |
| 715 | case DW_OP_const2u: |
| 716 | printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2)); |
| 717 | data += 2; |
| 718 | break; |
| 719 | case DW_OP_const2s: |
| 720 | printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2)); |
| 721 | data += 2; |
| 722 | break; |
| 723 | case DW_OP_const4u: |
| 724 | printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4)); |
| 725 | data += 4; |
| 726 | break; |
| 727 | case DW_OP_const4s: |
| 728 | printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4)); |
| 729 | data += 4; |
| 730 | break; |
| 731 | case DW_OP_const8u: |
| 732 | printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4), |
| 733 | (unsigned long) byte_get (data + 4, 4)); |
| 734 | data += 8; |
| 735 | break; |
| 736 | case DW_OP_const8s: |
| 737 | printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4), |
| 738 | (long) byte_get (data + 4, 4)); |
| 739 | data += 8; |
| 740 | break; |
| 741 | case DW_OP_constu: |
| 742 | printf ("DW_OP_constu: %lu", read_leb128 (data, &bytes_read, 0)); |
| 743 | data += bytes_read; |
| 744 | break; |
| 745 | case DW_OP_consts: |
| 746 | printf ("DW_OP_consts: %ld", read_leb128 (data, &bytes_read, 1)); |
| 747 | data += bytes_read; |
| 748 | break; |
| 749 | case DW_OP_dup: |
| 750 | printf ("DW_OP_dup"); |
| 751 | break; |
| 752 | case DW_OP_drop: |
| 753 | printf ("DW_OP_drop"); |
| 754 | break; |
| 755 | case DW_OP_over: |
| 756 | printf ("DW_OP_over"); |
| 757 | break; |
| 758 | case DW_OP_pick: |
| 759 | printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1)); |
| 760 | break; |
| 761 | case DW_OP_swap: |
| 762 | printf ("DW_OP_swap"); |
| 763 | break; |
| 764 | case DW_OP_rot: |
| 765 | printf ("DW_OP_rot"); |
| 766 | break; |
| 767 | case DW_OP_xderef: |
| 768 | printf ("DW_OP_xderef"); |
| 769 | break; |
| 770 | case DW_OP_abs: |
| 771 | printf ("DW_OP_abs"); |
| 772 | break; |
| 773 | case DW_OP_and: |
| 774 | printf ("DW_OP_and"); |
| 775 | break; |
| 776 | case DW_OP_div: |
| 777 | printf ("DW_OP_div"); |
| 778 | break; |
| 779 | case DW_OP_minus: |
| 780 | printf ("DW_OP_minus"); |
| 781 | break; |
| 782 | case DW_OP_mod: |
| 783 | printf ("DW_OP_mod"); |
| 784 | break; |
| 785 | case DW_OP_mul: |
| 786 | printf ("DW_OP_mul"); |
| 787 | break; |
| 788 | case DW_OP_neg: |
| 789 | printf ("DW_OP_neg"); |
| 790 | break; |
| 791 | case DW_OP_not: |
| 792 | printf ("DW_OP_not"); |
| 793 | break; |
| 794 | case DW_OP_or: |
| 795 | printf ("DW_OP_or"); |
| 796 | break; |
| 797 | case DW_OP_plus: |
| 798 | printf ("DW_OP_plus"); |
| 799 | break; |
| 800 | case DW_OP_plus_uconst: |
| 801 | printf ("DW_OP_plus_uconst: %lu", |
| 802 | read_leb128 (data, &bytes_read, 0)); |
| 803 | data += bytes_read; |
| 804 | break; |
| 805 | case DW_OP_shl: |
| 806 | printf ("DW_OP_shl"); |
| 807 | break; |
| 808 | case DW_OP_shr: |
| 809 | printf ("DW_OP_shr"); |
| 810 | break; |
| 811 | case DW_OP_shra: |
| 812 | printf ("DW_OP_shra"); |
| 813 | break; |
| 814 | case DW_OP_xor: |
| 815 | printf ("DW_OP_xor"); |
| 816 | break; |
| 817 | case DW_OP_bra: |
| 818 | printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2)); |
| 819 | data += 2; |
| 820 | break; |
| 821 | case DW_OP_eq: |
| 822 | printf ("DW_OP_eq"); |
| 823 | break; |
| 824 | case DW_OP_ge: |
| 825 | printf ("DW_OP_ge"); |
| 826 | break; |
| 827 | case DW_OP_gt: |
| 828 | printf ("DW_OP_gt"); |
| 829 | break; |
| 830 | case DW_OP_le: |
| 831 | printf ("DW_OP_le"); |
| 832 | break; |
| 833 | case DW_OP_lt: |
| 834 | printf ("DW_OP_lt"); |
| 835 | break; |
| 836 | case DW_OP_ne: |
| 837 | printf ("DW_OP_ne"); |
| 838 | break; |
| 839 | case DW_OP_skip: |
| 840 | printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2)); |
| 841 | data += 2; |
| 842 | break; |
| 843 | |
| 844 | case DW_OP_lit0: |
| 845 | case DW_OP_lit1: |
| 846 | case DW_OP_lit2: |
| 847 | case DW_OP_lit3: |
| 848 | case DW_OP_lit4: |
| 849 | case DW_OP_lit5: |
| 850 | case DW_OP_lit6: |
| 851 | case DW_OP_lit7: |
| 852 | case DW_OP_lit8: |
| 853 | case DW_OP_lit9: |
| 854 | case DW_OP_lit10: |
| 855 | case DW_OP_lit11: |
| 856 | case DW_OP_lit12: |
| 857 | case DW_OP_lit13: |
| 858 | case DW_OP_lit14: |
| 859 | case DW_OP_lit15: |
| 860 | case DW_OP_lit16: |
| 861 | case DW_OP_lit17: |
| 862 | case DW_OP_lit18: |
| 863 | case DW_OP_lit19: |
| 864 | case DW_OP_lit20: |
| 865 | case DW_OP_lit21: |
| 866 | case DW_OP_lit22: |
| 867 | case DW_OP_lit23: |
| 868 | case DW_OP_lit24: |
| 869 | case DW_OP_lit25: |
| 870 | case DW_OP_lit26: |
| 871 | case DW_OP_lit27: |
| 872 | case DW_OP_lit28: |
| 873 | case DW_OP_lit29: |
| 874 | case DW_OP_lit30: |
| 875 | case DW_OP_lit31: |
| 876 | printf ("DW_OP_lit%d", op - DW_OP_lit0); |
| 877 | break; |
| 878 | |
| 879 | case DW_OP_reg0: |
| 880 | case DW_OP_reg1: |
| 881 | case DW_OP_reg2: |
| 882 | case DW_OP_reg3: |
| 883 | case DW_OP_reg4: |
| 884 | case DW_OP_reg5: |
| 885 | case DW_OP_reg6: |
| 886 | case DW_OP_reg7: |
| 887 | case DW_OP_reg8: |
| 888 | case DW_OP_reg9: |
| 889 | case DW_OP_reg10: |
| 890 | case DW_OP_reg11: |
| 891 | case DW_OP_reg12: |
| 892 | case DW_OP_reg13: |
| 893 | case DW_OP_reg14: |
| 894 | case DW_OP_reg15: |
| 895 | case DW_OP_reg16: |
| 896 | case DW_OP_reg17: |
| 897 | case DW_OP_reg18: |
| 898 | case DW_OP_reg19: |
| 899 | case DW_OP_reg20: |
| 900 | case DW_OP_reg21: |
| 901 | case DW_OP_reg22: |
| 902 | case DW_OP_reg23: |
| 903 | case DW_OP_reg24: |
| 904 | case DW_OP_reg25: |
| 905 | case DW_OP_reg26: |
| 906 | case DW_OP_reg27: |
| 907 | case DW_OP_reg28: |
| 908 | case DW_OP_reg29: |
| 909 | case DW_OP_reg30: |
| 910 | case DW_OP_reg31: |
| 911 | printf ("DW_OP_reg%d", op - DW_OP_reg0); |
| 912 | break; |
| 913 | |
| 914 | case DW_OP_breg0: |
| 915 | case DW_OP_breg1: |
| 916 | case DW_OP_breg2: |
| 917 | case DW_OP_breg3: |
| 918 | case DW_OP_breg4: |
| 919 | case DW_OP_breg5: |
| 920 | case DW_OP_breg6: |
| 921 | case DW_OP_breg7: |
| 922 | case DW_OP_breg8: |
| 923 | case DW_OP_breg9: |
| 924 | case DW_OP_breg10: |
| 925 | case DW_OP_breg11: |
| 926 | case DW_OP_breg12: |
| 927 | case DW_OP_breg13: |
| 928 | case DW_OP_breg14: |
| 929 | case DW_OP_breg15: |
| 930 | case DW_OP_breg16: |
| 931 | case DW_OP_breg17: |
| 932 | case DW_OP_breg18: |
| 933 | case DW_OP_breg19: |
| 934 | case DW_OP_breg20: |
| 935 | case DW_OP_breg21: |
| 936 | case DW_OP_breg22: |
| 937 | case DW_OP_breg23: |
| 938 | case DW_OP_breg24: |
| 939 | case DW_OP_breg25: |
| 940 | case DW_OP_breg26: |
| 941 | case DW_OP_breg27: |
| 942 | case DW_OP_breg28: |
| 943 | case DW_OP_breg29: |
| 944 | case DW_OP_breg30: |
| 945 | case DW_OP_breg31: |
| 946 | printf ("DW_OP_breg%d: %ld", op - DW_OP_breg0, |
| 947 | read_leb128 (data, &bytes_read, 1)); |
| 948 | data += bytes_read; |
| 949 | break; |
| 950 | |
| 951 | case DW_OP_regx: |
| 952 | printf ("DW_OP_regx: %lu", read_leb128 (data, &bytes_read, 0)); |
| 953 | data += bytes_read; |
| 954 | break; |
| 955 | case DW_OP_fbreg: |
| 956 | need_frame_base = 1; |
| 957 | printf ("DW_OP_fbreg: %ld", read_leb128 (data, &bytes_read, 1)); |
| 958 | data += bytes_read; |
| 959 | break; |
| 960 | case DW_OP_bregx: |
| 961 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 962 | data += bytes_read; |
| 963 | printf ("DW_OP_bregx: %lu %ld", uvalue, |
| 964 | read_leb128 (data, &bytes_read, 1)); |
| 965 | data += bytes_read; |
| 966 | break; |
| 967 | case DW_OP_piece: |
| 968 | printf ("DW_OP_piece: %lu", read_leb128 (data, &bytes_read, 0)); |
| 969 | data += bytes_read; |
| 970 | break; |
| 971 | case DW_OP_deref_size: |
| 972 | printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1)); |
| 973 | break; |
| 974 | case DW_OP_xderef_size: |
| 975 | printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1)); |
| 976 | break; |
| 977 | case DW_OP_nop: |
| 978 | printf ("DW_OP_nop"); |
| 979 | break; |
| 980 | |
| 981 | /* DWARF 3 extensions. */ |
| 982 | case DW_OP_push_object_address: |
| 983 | printf ("DW_OP_push_object_address"); |
| 984 | break; |
| 985 | case DW_OP_call2: |
| 986 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 987 | this ought to be an 8-byte wide computation. */ |
| 988 | printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset); |
| 989 | data += 2; |
| 990 | break; |
| 991 | case DW_OP_call4: |
| 992 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 993 | this ought to be an 8-byte wide computation. */ |
| 994 | printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset); |
| 995 | data += 4; |
| 996 | break; |
| 997 | case DW_OP_call_ref: |
| 998 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 999 | this ought to be an 8-byte wide computation. */ |
| 1000 | printf ("DW_OP_call_ref: <%lx>", (long) byte_get (data, 4) + cu_offset); |
| 1001 | data += 4; |
| 1002 | break; |
| 1003 | case DW_OP_form_tls_address: |
| 1004 | printf ("DW_OP_form_tls_address"); |
| 1005 | break; |
| 1006 | case DW_OP_call_frame_cfa: |
| 1007 | printf ("DW_OP_call_frame_cfa"); |
| 1008 | break; |
| 1009 | case DW_OP_bit_piece: |
| 1010 | printf ("DW_OP_bit_piece: "); |
| 1011 | printf ("size: %lu ", read_leb128 (data, &bytes_read, 0)); |
| 1012 | data += bytes_read; |
| 1013 | printf ("offset: %lu ", read_leb128 (data, &bytes_read, 0)); |
| 1014 | data += bytes_read; |
| 1015 | break; |
| 1016 | |
| 1017 | /* DWARF 4 extensions. */ |
| 1018 | case DW_OP_stack_value: |
| 1019 | printf ("DW_OP_stack_value"); |
| 1020 | break; |
| 1021 | |
| 1022 | case DW_OP_implicit_value: |
| 1023 | printf ("DW_OP_implicit_value"); |
| 1024 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1025 | data += bytes_read; |
| 1026 | display_block (data, uvalue); |
| 1027 | data += uvalue; |
| 1028 | break; |
| 1029 | |
| 1030 | /* GNU extensions. */ |
| 1031 | case DW_OP_GNU_push_tls_address: |
| 1032 | printf ("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown"); |
| 1033 | break; |
| 1034 | case DW_OP_GNU_uninit: |
| 1035 | printf ("DW_OP_GNU_uninit"); |
| 1036 | /* FIXME: Is there data associated with this OP ? */ |
| 1037 | break; |
| 1038 | case DW_OP_GNU_encoded_addr: |
| 1039 | { |
| 1040 | int encoding; |
| 1041 | dwarf_vma addr; |
| 1042 | |
| 1043 | encoding = *data++; |
| 1044 | addr = get_encoded_value (data, encoding); |
| 1045 | if ((encoding & 0x70) == DW_EH_PE_pcrel) |
| 1046 | addr += section->address + (data - section->start); |
| 1047 | data += size_of_encoded_value (encoding); |
| 1048 | |
| 1049 | printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding); |
| 1050 | print_dwarf_vma (addr, pointer_size); |
| 1051 | } |
| 1052 | break; |
| 1053 | |
| 1054 | /* HP extensions. */ |
| 1055 | case DW_OP_HP_is_value: |
| 1056 | printf ("DW_OP_HP_is_value"); |
| 1057 | /* FIXME: Is there data associated with this OP ? */ |
| 1058 | break; |
| 1059 | case DW_OP_HP_fltconst4: |
| 1060 | printf ("DW_OP_HP_fltconst4"); |
| 1061 | /* FIXME: Is there data associated with this OP ? */ |
| 1062 | break; |
| 1063 | case DW_OP_HP_fltconst8: |
| 1064 | printf ("DW_OP_HP_fltconst8"); |
| 1065 | /* FIXME: Is there data associated with this OP ? */ |
| 1066 | break; |
| 1067 | case DW_OP_HP_mod_range: |
| 1068 | printf ("DW_OP_HP_mod_range"); |
| 1069 | /* FIXME: Is there data associated with this OP ? */ |
| 1070 | break; |
| 1071 | case DW_OP_HP_unmod_range: |
| 1072 | printf ("DW_OP_HP_unmod_range"); |
| 1073 | /* FIXME: Is there data associated with this OP ? */ |
| 1074 | break; |
| 1075 | case DW_OP_HP_tls: |
| 1076 | printf ("DW_OP_HP_tls"); |
| 1077 | /* FIXME: Is there data associated with this OP ? */ |
| 1078 | break; |
| 1079 | |
| 1080 | /* PGI (STMicroelectronics) extensions. */ |
| 1081 | case DW_OP_PGI_omp_thread_num: |
| 1082 | /* Pushes the thread number for the current thread as it would be |
| 1083 | returned by the standard OpenMP library function: |
| 1084 | omp_get_thread_num(). The "current thread" is the thread for |
| 1085 | which the expression is being evaluated. */ |
| 1086 | printf ("DW_OP_PGI_omp_thread_num"); |
| 1087 | break; |
| 1088 | |
| 1089 | default: |
| 1090 | if (op >= DW_OP_lo_user |
| 1091 | && op <= DW_OP_hi_user) |
| 1092 | printf (_("(User defined location op)")); |
| 1093 | else |
| 1094 | printf (_("(Unknown location op)")); |
| 1095 | /* No way to tell where the next op is, so just bail. */ |
| 1096 | return need_frame_base; |
| 1097 | } |
| 1098 | |
| 1099 | /* Separate the ops. */ |
| 1100 | if (data < end) |
| 1101 | printf ("; "); |
| 1102 | } |
| 1103 | |
| 1104 | return need_frame_base; |
| 1105 | } |
| 1106 | |
| 1107 | static unsigned char * |
| 1108 | read_and_display_attr_value (unsigned long attribute, |
| 1109 | unsigned long form, |
| 1110 | unsigned char * data, |
| 1111 | unsigned long cu_offset, |
| 1112 | unsigned long pointer_size, |
| 1113 | unsigned long offset_size, |
| 1114 | int dwarf_version, |
| 1115 | debug_info * debug_info_p, |
| 1116 | int do_loc, |
| 1117 | struct dwarf_section * section) |
| 1118 | { |
| 1119 | unsigned long uvalue = 0; |
| 1120 | unsigned char *block_start = NULL; |
| 1121 | unsigned char * orig_data = data; |
| 1122 | unsigned int bytes_read; |
| 1123 | |
| 1124 | switch (form) |
| 1125 | { |
| 1126 | default: |
| 1127 | break; |
| 1128 | |
| 1129 | case DW_FORM_ref_addr: |
| 1130 | if (dwarf_version == 2) |
| 1131 | { |
| 1132 | uvalue = byte_get (data, pointer_size); |
| 1133 | data += pointer_size; |
| 1134 | } |
| 1135 | else if (dwarf_version == 3) |
| 1136 | { |
| 1137 | uvalue = byte_get (data, offset_size); |
| 1138 | data += offset_size; |
| 1139 | } |
| 1140 | else |
| 1141 | { |
| 1142 | error (_("Internal error: DWARF version is not 2 or 3.\n")); |
| 1143 | } |
| 1144 | break; |
| 1145 | |
| 1146 | case DW_FORM_addr: |
| 1147 | uvalue = byte_get (data, pointer_size); |
| 1148 | data += pointer_size; |
| 1149 | break; |
| 1150 | |
| 1151 | case DW_FORM_strp: |
| 1152 | uvalue = byte_get (data, offset_size); |
| 1153 | data += offset_size; |
| 1154 | break; |
| 1155 | |
| 1156 | case DW_FORM_ref1: |
| 1157 | case DW_FORM_flag: |
| 1158 | case DW_FORM_data1: |
| 1159 | uvalue = byte_get (data++, 1); |
| 1160 | break; |
| 1161 | |
| 1162 | case DW_FORM_ref2: |
| 1163 | case DW_FORM_data2: |
| 1164 | uvalue = byte_get (data, 2); |
| 1165 | data += 2; |
| 1166 | break; |
| 1167 | |
| 1168 | case DW_FORM_ref4: |
| 1169 | case DW_FORM_data4: |
| 1170 | uvalue = byte_get (data, 4); |
| 1171 | data += 4; |
| 1172 | break; |
| 1173 | |
| 1174 | case DW_FORM_sdata: |
| 1175 | uvalue = read_leb128 (data, & bytes_read, 1); |
| 1176 | data += bytes_read; |
| 1177 | break; |
| 1178 | |
| 1179 | case DW_FORM_ref_udata: |
| 1180 | case DW_FORM_udata: |
| 1181 | uvalue = read_leb128 (data, & bytes_read, 0); |
| 1182 | data += bytes_read; |
| 1183 | break; |
| 1184 | |
| 1185 | case DW_FORM_indirect: |
| 1186 | form = read_leb128 (data, & bytes_read, 0); |
| 1187 | data += bytes_read; |
| 1188 | if (!do_loc) |
| 1189 | printf (" %s", get_FORM_name (form)); |
| 1190 | return read_and_display_attr_value (attribute, form, data, |
| 1191 | cu_offset, pointer_size, |
| 1192 | offset_size, dwarf_version, |
| 1193 | debug_info_p, do_loc, |
| 1194 | section); |
| 1195 | } |
| 1196 | |
| 1197 | switch (form) |
| 1198 | { |
| 1199 | case DW_FORM_ref_addr: |
| 1200 | if (!do_loc) |
| 1201 | printf (" <0x%lx>", uvalue); |
| 1202 | break; |
| 1203 | |
| 1204 | case DW_FORM_ref1: |
| 1205 | case DW_FORM_ref2: |
| 1206 | case DW_FORM_ref4: |
| 1207 | case DW_FORM_ref_udata: |
| 1208 | if (!do_loc) |
| 1209 | printf (" <0x%lx>", uvalue + cu_offset); |
| 1210 | break; |
| 1211 | |
| 1212 | case DW_FORM_data4: |
| 1213 | case DW_FORM_addr: |
| 1214 | if (!do_loc) |
| 1215 | printf (" 0x%lx", uvalue); |
| 1216 | break; |
| 1217 | |
| 1218 | case DW_FORM_flag: |
| 1219 | case DW_FORM_data1: |
| 1220 | case DW_FORM_data2: |
| 1221 | case DW_FORM_sdata: |
| 1222 | case DW_FORM_udata: |
| 1223 | if (!do_loc) |
| 1224 | printf (" %ld", uvalue); |
| 1225 | break; |
| 1226 | |
| 1227 | case DW_FORM_ref8: |
| 1228 | case DW_FORM_data8: |
| 1229 | if (!do_loc) |
| 1230 | { |
| 1231 | uvalue = byte_get (data, 4); |
| 1232 | printf (" 0x%lx", uvalue); |
| 1233 | printf (" 0x%lx", (unsigned long) byte_get (data + 4, 4)); |
| 1234 | } |
| 1235 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1236 | && num_debug_info_entries == 0) |
| 1237 | { |
| 1238 | if (sizeof (uvalue) == 8) |
| 1239 | uvalue = byte_get (data, 8); |
| 1240 | else |
| 1241 | error (_("DW_FORM_data8 is unsupported when sizeof (unsigned long) != 8\n")); |
| 1242 | } |
| 1243 | data += 8; |
| 1244 | break; |
| 1245 | |
| 1246 | case DW_FORM_string: |
| 1247 | if (!do_loc) |
| 1248 | printf (" %s", data); |
| 1249 | data += strlen ((char *) data) + 1; |
| 1250 | break; |
| 1251 | |
| 1252 | case DW_FORM_block: |
| 1253 | uvalue = read_leb128 (data, & bytes_read, 0); |
| 1254 | block_start = data + bytes_read; |
| 1255 | if (do_loc) |
| 1256 | data = block_start + uvalue; |
| 1257 | else |
| 1258 | data = display_block (block_start, uvalue); |
| 1259 | break; |
| 1260 | |
| 1261 | case DW_FORM_block1: |
| 1262 | uvalue = byte_get (data, 1); |
| 1263 | block_start = data + 1; |
| 1264 | if (do_loc) |
| 1265 | data = block_start + uvalue; |
| 1266 | else |
| 1267 | data = display_block (block_start, uvalue); |
| 1268 | break; |
| 1269 | |
| 1270 | case DW_FORM_block2: |
| 1271 | uvalue = byte_get (data, 2); |
| 1272 | block_start = data + 2; |
| 1273 | if (do_loc) |
| 1274 | data = block_start + uvalue; |
| 1275 | else |
| 1276 | data = display_block (block_start, uvalue); |
| 1277 | break; |
| 1278 | |
| 1279 | case DW_FORM_block4: |
| 1280 | uvalue = byte_get (data, 4); |
| 1281 | block_start = data + 4; |
| 1282 | if (do_loc) |
| 1283 | data = block_start + uvalue; |
| 1284 | else |
| 1285 | data = display_block (block_start, uvalue); |
| 1286 | break; |
| 1287 | |
| 1288 | case DW_FORM_strp: |
| 1289 | if (!do_loc) |
| 1290 | printf (_(" (indirect string, offset: 0x%lx): %s"), |
| 1291 | uvalue, fetch_indirect_string (uvalue)); |
| 1292 | break; |
| 1293 | |
| 1294 | case DW_FORM_indirect: |
| 1295 | /* Handled above. */ |
| 1296 | break; |
| 1297 | |
| 1298 | default: |
| 1299 | warn (_("Unrecognized form: %lu\n"), form); |
| 1300 | break; |
| 1301 | } |
| 1302 | |
| 1303 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1304 | && num_debug_info_entries == 0) |
| 1305 | { |
| 1306 | switch (attribute) |
| 1307 | { |
| 1308 | case DW_AT_frame_base: |
| 1309 | have_frame_base = 1; |
| 1310 | case DW_AT_location: |
| 1311 | case DW_AT_string_length: |
| 1312 | case DW_AT_return_addr: |
| 1313 | case DW_AT_data_member_location: |
| 1314 | case DW_AT_vtable_elem_location: |
| 1315 | case DW_AT_segment: |
| 1316 | case DW_AT_static_link: |
| 1317 | case DW_AT_use_location: |
| 1318 | if (form == DW_FORM_data4 || form == DW_FORM_data8) |
| 1319 | { |
| 1320 | /* Process location list. */ |
| 1321 | unsigned int max = debug_info_p->max_loc_offsets; |
| 1322 | unsigned int num = debug_info_p->num_loc_offsets; |
| 1323 | |
| 1324 | if (max == 0 || num >= max) |
| 1325 | { |
| 1326 | max += 1024; |
| 1327 | debug_info_p->loc_offsets |
| 1328 | = xcrealloc (debug_info_p->loc_offsets, |
| 1329 | max, sizeof (*debug_info_p->loc_offsets)); |
| 1330 | debug_info_p->have_frame_base |
| 1331 | = xcrealloc (debug_info_p->have_frame_base, |
| 1332 | max, sizeof (*debug_info_p->have_frame_base)); |
| 1333 | debug_info_p->max_loc_offsets = max; |
| 1334 | } |
| 1335 | debug_info_p->loc_offsets [num] = uvalue; |
| 1336 | debug_info_p->have_frame_base [num] = have_frame_base; |
| 1337 | debug_info_p->num_loc_offsets++; |
| 1338 | } |
| 1339 | break; |
| 1340 | |
| 1341 | case DW_AT_low_pc: |
| 1342 | if (need_base_address) |
| 1343 | debug_info_p->base_address = uvalue; |
| 1344 | break; |
| 1345 | |
| 1346 | case DW_AT_ranges: |
| 1347 | if (form == DW_FORM_data4 || form == DW_FORM_data8) |
| 1348 | { |
| 1349 | /* Process range list. */ |
| 1350 | unsigned int max = debug_info_p->max_range_lists; |
| 1351 | unsigned int num = debug_info_p->num_range_lists; |
| 1352 | |
| 1353 | if (max == 0 || num >= max) |
| 1354 | { |
| 1355 | max += 1024; |
| 1356 | debug_info_p->range_lists |
| 1357 | = xcrealloc (debug_info_p->range_lists, |
| 1358 | max, sizeof (*debug_info_p->range_lists)); |
| 1359 | debug_info_p->max_range_lists = max; |
| 1360 | } |
| 1361 | debug_info_p->range_lists [num] = uvalue; |
| 1362 | debug_info_p->num_range_lists++; |
| 1363 | } |
| 1364 | break; |
| 1365 | |
| 1366 | default: |
| 1367 | break; |
| 1368 | } |
| 1369 | } |
| 1370 | |
| 1371 | if (do_loc) |
| 1372 | return data; |
| 1373 | |
| 1374 | /* For some attributes we can display further information. */ |
| 1375 | printf ("\t"); |
| 1376 | |
| 1377 | switch (attribute) |
| 1378 | { |
| 1379 | case DW_AT_inline: |
| 1380 | switch (uvalue) |
| 1381 | { |
| 1382 | case DW_INL_not_inlined: |
| 1383 | printf (_("(not inlined)")); |
| 1384 | break; |
| 1385 | case DW_INL_inlined: |
| 1386 | printf (_("(inlined)")); |
| 1387 | break; |
| 1388 | case DW_INL_declared_not_inlined: |
| 1389 | printf (_("(declared as inline but ignored)")); |
| 1390 | break; |
| 1391 | case DW_INL_declared_inlined: |
| 1392 | printf (_("(declared as inline and inlined)")); |
| 1393 | break; |
| 1394 | default: |
| 1395 | printf (_(" (Unknown inline attribute value: %lx)"), uvalue); |
| 1396 | break; |
| 1397 | } |
| 1398 | break; |
| 1399 | |
| 1400 | case DW_AT_language: |
| 1401 | switch (uvalue) |
| 1402 | { |
| 1403 | /* Ordered by the numeric value of these constants. */ |
| 1404 | case DW_LANG_C89: printf ("(ANSI C)"); break; |
| 1405 | case DW_LANG_C: printf ("(non-ANSI C)"); break; |
| 1406 | case DW_LANG_Ada83: printf ("(Ada)"); break; |
| 1407 | case DW_LANG_C_plus_plus: printf ("(C++)"); break; |
| 1408 | case DW_LANG_Cobol74: printf ("(Cobol 74)"); break; |
| 1409 | case DW_LANG_Cobol85: printf ("(Cobol 85)"); break; |
| 1410 | case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break; |
| 1411 | case DW_LANG_Fortran90: printf ("(Fortran 90)"); break; |
| 1412 | case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break; |
| 1413 | case DW_LANG_Modula2: printf ("(Modula 2)"); break; |
| 1414 | /* DWARF 2.1 values. */ |
| 1415 | case DW_LANG_Java: printf ("(Java)"); break; |
| 1416 | case DW_LANG_C99: printf ("(ANSI C99)"); break; |
| 1417 | case DW_LANG_Ada95: printf ("(ADA 95)"); break; |
| 1418 | case DW_LANG_Fortran95: printf ("(Fortran 95)"); break; |
| 1419 | /* DWARF 3 values. */ |
| 1420 | case DW_LANG_PLI: printf ("(PLI)"); break; |
| 1421 | case DW_LANG_ObjC: printf ("(Objective C)"); break; |
| 1422 | case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break; |
| 1423 | case DW_LANG_UPC: printf ("(Unified Parallel C)"); break; |
| 1424 | case DW_LANG_D: printf ("(D)"); break; |
| 1425 | /* MIPS extension. */ |
| 1426 | case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break; |
| 1427 | /* UPC extension. */ |
| 1428 | case DW_LANG_Upc: printf ("(Unified Parallel C)"); break; |
| 1429 | default: |
| 1430 | if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user) |
| 1431 | printf ("(implementation defined: %lx)", uvalue); |
| 1432 | else |
| 1433 | printf ("(Unknown: %lx)", uvalue); |
| 1434 | break; |
| 1435 | } |
| 1436 | break; |
| 1437 | |
| 1438 | case DW_AT_encoding: |
| 1439 | switch (uvalue) |
| 1440 | { |
| 1441 | case DW_ATE_void: printf ("(void)"); break; |
| 1442 | case DW_ATE_address: printf ("(machine address)"); break; |
| 1443 | case DW_ATE_boolean: printf ("(boolean)"); break; |
| 1444 | case DW_ATE_complex_float: printf ("(complex float)"); break; |
| 1445 | case DW_ATE_float: printf ("(float)"); break; |
| 1446 | case DW_ATE_signed: printf ("(signed)"); break; |
| 1447 | case DW_ATE_signed_char: printf ("(signed char)"); break; |
| 1448 | case DW_ATE_unsigned: printf ("(unsigned)"); break; |
| 1449 | case DW_ATE_unsigned_char: printf ("(unsigned char)"); break; |
| 1450 | /* DWARF 2.1 values: */ |
| 1451 | case DW_ATE_imaginary_float: printf ("(imaginary float)"); break; |
| 1452 | case DW_ATE_decimal_float: printf ("(decimal float)"); break; |
| 1453 | /* DWARF 3 values: */ |
| 1454 | case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break; |
| 1455 | case DW_ATE_numeric_string: printf ("(numeric_string)"); break; |
| 1456 | case DW_ATE_edited: printf ("(edited)"); break; |
| 1457 | case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break; |
| 1458 | case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break; |
| 1459 | /* HP extensions: */ |
| 1460 | case DW_ATE_HP_float80: printf ("(HP_float80)"); break; |
| 1461 | case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break; |
| 1462 | case DW_ATE_HP_float128: printf ("(HP_float128)"); break; |
| 1463 | case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break; |
| 1464 | case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break; |
| 1465 | case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break; |
| 1466 | case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break; |
| 1467 | |
| 1468 | default: |
| 1469 | if (uvalue >= DW_ATE_lo_user |
| 1470 | && uvalue <= DW_ATE_hi_user) |
| 1471 | printf ("(user defined type)"); |
| 1472 | else |
| 1473 | printf ("(unknown type)"); |
| 1474 | break; |
| 1475 | } |
| 1476 | break; |
| 1477 | |
| 1478 | case DW_AT_accessibility: |
| 1479 | switch (uvalue) |
| 1480 | { |
| 1481 | case DW_ACCESS_public: printf ("(public)"); break; |
| 1482 | case DW_ACCESS_protected: printf ("(protected)"); break; |
| 1483 | case DW_ACCESS_private: printf ("(private)"); break; |
| 1484 | default: |
| 1485 | printf ("(unknown accessibility)"); |
| 1486 | break; |
| 1487 | } |
| 1488 | break; |
| 1489 | |
| 1490 | case DW_AT_visibility: |
| 1491 | switch (uvalue) |
| 1492 | { |
| 1493 | case DW_VIS_local: printf ("(local)"); break; |
| 1494 | case DW_VIS_exported: printf ("(exported)"); break; |
| 1495 | case DW_VIS_qualified: printf ("(qualified)"); break; |
| 1496 | default: printf ("(unknown visibility)"); break; |
| 1497 | } |
| 1498 | break; |
| 1499 | |
| 1500 | case DW_AT_virtuality: |
| 1501 | switch (uvalue) |
| 1502 | { |
| 1503 | case DW_VIRTUALITY_none: printf ("(none)"); break; |
| 1504 | case DW_VIRTUALITY_virtual: printf ("(virtual)"); break; |
| 1505 | case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break; |
| 1506 | default: printf ("(unknown virtuality)"); break; |
| 1507 | } |
| 1508 | break; |
| 1509 | |
| 1510 | case DW_AT_identifier_case: |
| 1511 | switch (uvalue) |
| 1512 | { |
| 1513 | case DW_ID_case_sensitive: printf ("(case_sensitive)"); break; |
| 1514 | case DW_ID_up_case: printf ("(up_case)"); break; |
| 1515 | case DW_ID_down_case: printf ("(down_case)"); break; |
| 1516 | case DW_ID_case_insensitive: printf ("(case_insensitive)"); break; |
| 1517 | default: printf ("(unknown case)"); break; |
| 1518 | } |
| 1519 | break; |
| 1520 | |
| 1521 | case DW_AT_calling_convention: |
| 1522 | switch (uvalue) |
| 1523 | { |
| 1524 | case DW_CC_normal: printf ("(normal)"); break; |
| 1525 | case DW_CC_program: printf ("(program)"); break; |
| 1526 | case DW_CC_nocall: printf ("(nocall)"); break; |
| 1527 | default: |
| 1528 | if (uvalue >= DW_CC_lo_user |
| 1529 | && uvalue <= DW_CC_hi_user) |
| 1530 | printf ("(user defined)"); |
| 1531 | else |
| 1532 | printf ("(unknown convention)"); |
| 1533 | } |
| 1534 | break; |
| 1535 | |
| 1536 | case DW_AT_ordering: |
| 1537 | switch (uvalue) |
| 1538 | { |
| 1539 | case -1: printf ("(undefined)"); break; |
| 1540 | case 0: printf ("(row major)"); break; |
| 1541 | case 1: printf ("(column major)"); break; |
| 1542 | } |
| 1543 | break; |
| 1544 | |
| 1545 | case DW_AT_frame_base: |
| 1546 | have_frame_base = 1; |
| 1547 | case DW_AT_location: |
| 1548 | case DW_AT_string_length: |
| 1549 | case DW_AT_return_addr: |
| 1550 | case DW_AT_data_member_location: |
| 1551 | case DW_AT_vtable_elem_location: |
| 1552 | case DW_AT_segment: |
| 1553 | case DW_AT_static_link: |
| 1554 | case DW_AT_use_location: |
| 1555 | if (form == DW_FORM_data4 || form == DW_FORM_data8) |
| 1556 | printf (_("(location list)")); |
| 1557 | /* Fall through. */ |
| 1558 | case DW_AT_allocated: |
| 1559 | case DW_AT_associated: |
| 1560 | case DW_AT_data_location: |
| 1561 | case DW_AT_stride: |
| 1562 | case DW_AT_upper_bound: |
| 1563 | case DW_AT_lower_bound: |
| 1564 | if (block_start) |
| 1565 | { |
| 1566 | int need_frame_base; |
| 1567 | |
| 1568 | printf ("("); |
| 1569 | need_frame_base = decode_location_expression (block_start, |
| 1570 | pointer_size, |
| 1571 | uvalue, |
| 1572 | cu_offset, section); |
| 1573 | printf (")"); |
| 1574 | if (need_frame_base && !have_frame_base) |
| 1575 | printf (_(" [without DW_AT_frame_base]")); |
| 1576 | } |
| 1577 | break; |
| 1578 | |
| 1579 | case DW_AT_import: |
| 1580 | { |
| 1581 | if (form == DW_FORM_ref1 |
| 1582 | || form == DW_FORM_ref2 |
| 1583 | || form == DW_FORM_ref4) |
| 1584 | uvalue += cu_offset; |
| 1585 | |
| 1586 | if (uvalue >= section->size) |
| 1587 | warn (_("Offset %lx used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"), |
| 1588 | uvalue, (unsigned long) (orig_data - section->start)); |
| 1589 | else |
| 1590 | { |
| 1591 | unsigned long abbrev_number; |
| 1592 | abbrev_entry * entry; |
| 1593 | |
| 1594 | abbrev_number = read_leb128 (section->start + uvalue, NULL, 0); |
| 1595 | |
| 1596 | printf ("[Abbrev Number: %ld", abbrev_number); |
| 1597 | for (entry = first_abbrev; entry != NULL; entry = entry->next) |
| 1598 | if (entry->entry == abbrev_number) |
| 1599 | break; |
| 1600 | if (entry != NULL) |
| 1601 | printf (" (%s)", get_TAG_name (entry->tag)); |
| 1602 | printf ("]"); |
| 1603 | } |
| 1604 | } |
| 1605 | break; |
| 1606 | |
| 1607 | default: |
| 1608 | break; |
| 1609 | } |
| 1610 | |
| 1611 | return data; |
| 1612 | } |
| 1613 | |
| 1614 | static char * |
| 1615 | get_AT_name (unsigned long attribute) |
| 1616 | { |
| 1617 | switch (attribute) |
| 1618 | { |
| 1619 | case DW_AT_sibling: return "DW_AT_sibling"; |
| 1620 | case DW_AT_location: return "DW_AT_location"; |
| 1621 | case DW_AT_name: return "DW_AT_name"; |
| 1622 | case DW_AT_ordering: return "DW_AT_ordering"; |
| 1623 | case DW_AT_subscr_data: return "DW_AT_subscr_data"; |
| 1624 | case DW_AT_byte_size: return "DW_AT_byte_size"; |
| 1625 | case DW_AT_bit_offset: return "DW_AT_bit_offset"; |
| 1626 | case DW_AT_bit_size: return "DW_AT_bit_size"; |
| 1627 | case DW_AT_element_list: return "DW_AT_element_list"; |
| 1628 | case DW_AT_stmt_list: return "DW_AT_stmt_list"; |
| 1629 | case DW_AT_low_pc: return "DW_AT_low_pc"; |
| 1630 | case DW_AT_high_pc: return "DW_AT_high_pc"; |
| 1631 | case DW_AT_language: return "DW_AT_language"; |
| 1632 | case DW_AT_member: return "DW_AT_member"; |
| 1633 | case DW_AT_discr: return "DW_AT_discr"; |
| 1634 | case DW_AT_discr_value: return "DW_AT_discr_value"; |
| 1635 | case DW_AT_visibility: return "DW_AT_visibility"; |
| 1636 | case DW_AT_import: return "DW_AT_import"; |
| 1637 | case DW_AT_string_length: return "DW_AT_string_length"; |
| 1638 | case DW_AT_common_reference: return "DW_AT_common_reference"; |
| 1639 | case DW_AT_comp_dir: return "DW_AT_comp_dir"; |
| 1640 | case DW_AT_const_value: return "DW_AT_const_value"; |
| 1641 | case DW_AT_containing_type: return "DW_AT_containing_type"; |
| 1642 | case DW_AT_default_value: return "DW_AT_default_value"; |
| 1643 | case DW_AT_inline: return "DW_AT_inline"; |
| 1644 | case DW_AT_is_optional: return "DW_AT_is_optional"; |
| 1645 | case DW_AT_lower_bound: return "DW_AT_lower_bound"; |
| 1646 | case DW_AT_producer: return "DW_AT_producer"; |
| 1647 | case DW_AT_prototyped: return "DW_AT_prototyped"; |
| 1648 | case DW_AT_return_addr: return "DW_AT_return_addr"; |
| 1649 | case DW_AT_start_scope: return "DW_AT_start_scope"; |
| 1650 | case DW_AT_stride_size: return "DW_AT_stride_size"; |
| 1651 | case DW_AT_upper_bound: return "DW_AT_upper_bound"; |
| 1652 | case DW_AT_abstract_origin: return "DW_AT_abstract_origin"; |
| 1653 | case DW_AT_accessibility: return "DW_AT_accessibility"; |
| 1654 | case DW_AT_address_class: return "DW_AT_address_class"; |
| 1655 | case DW_AT_artificial: return "DW_AT_artificial"; |
| 1656 | case DW_AT_base_types: return "DW_AT_base_types"; |
| 1657 | case DW_AT_calling_convention: return "DW_AT_calling_convention"; |
| 1658 | case DW_AT_count: return "DW_AT_count"; |
| 1659 | case DW_AT_data_member_location: return "DW_AT_data_member_location"; |
| 1660 | case DW_AT_decl_column: return "DW_AT_decl_column"; |
| 1661 | case DW_AT_decl_file: return "DW_AT_decl_file"; |
| 1662 | case DW_AT_decl_line: return "DW_AT_decl_line"; |
| 1663 | case DW_AT_declaration: return "DW_AT_declaration"; |
| 1664 | case DW_AT_discr_list: return "DW_AT_discr_list"; |
| 1665 | case DW_AT_encoding: return "DW_AT_encoding"; |
| 1666 | case DW_AT_external: return "DW_AT_external"; |
| 1667 | case DW_AT_frame_base: return "DW_AT_frame_base"; |
| 1668 | case DW_AT_friend: return "DW_AT_friend"; |
| 1669 | case DW_AT_identifier_case: return "DW_AT_identifier_case"; |
| 1670 | case DW_AT_macro_info: return "DW_AT_macro_info"; |
| 1671 | case DW_AT_namelist_items: return "DW_AT_namelist_items"; |
| 1672 | case DW_AT_priority: return "DW_AT_priority"; |
| 1673 | case DW_AT_segment: return "DW_AT_segment"; |
| 1674 | case DW_AT_specification: return "DW_AT_specification"; |
| 1675 | case DW_AT_static_link: return "DW_AT_static_link"; |
| 1676 | case DW_AT_type: return "DW_AT_type"; |
| 1677 | case DW_AT_use_location: return "DW_AT_use_location"; |
| 1678 | case DW_AT_variable_parameter: return "DW_AT_variable_parameter"; |
| 1679 | case DW_AT_virtuality: return "DW_AT_virtuality"; |
| 1680 | case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location"; |
| 1681 | /* DWARF 2.1 values. */ |
| 1682 | case DW_AT_allocated: return "DW_AT_allocated"; |
| 1683 | case DW_AT_associated: return "DW_AT_associated"; |
| 1684 | case DW_AT_data_location: return "DW_AT_data_location"; |
| 1685 | case DW_AT_stride: return "DW_AT_stride"; |
| 1686 | case DW_AT_entry_pc: return "DW_AT_entry_pc"; |
| 1687 | case DW_AT_use_UTF8: return "DW_AT_use_UTF8"; |
| 1688 | case DW_AT_extension: return "DW_AT_extension"; |
| 1689 | case DW_AT_ranges: return "DW_AT_ranges"; |
| 1690 | case DW_AT_trampoline: return "DW_AT_trampoline"; |
| 1691 | case DW_AT_call_column: return "DW_AT_call_column"; |
| 1692 | case DW_AT_call_file: return "DW_AT_call_file"; |
| 1693 | case DW_AT_call_line: return "DW_AT_call_line"; |
| 1694 | case DW_AT_description: return "DW_AT_description"; |
| 1695 | case DW_AT_binary_scale: return "DW_AT_binary_scale"; |
| 1696 | case DW_AT_decimal_scale: return "DW_AT_decimal_scale"; |
| 1697 | case DW_AT_small: return "DW_AT_small"; |
| 1698 | case DW_AT_decimal_sign: return "DW_AT_decimal_sign"; |
| 1699 | case DW_AT_digit_count: return "DW_AT_digit_count"; |
| 1700 | case DW_AT_picture_string: return "DW_AT_picture_string"; |
| 1701 | case DW_AT_mutable: return "DW_AT_mutable"; |
| 1702 | case DW_AT_threads_scaled: return "DW_AT_threads_scaled"; |
| 1703 | case DW_AT_explicit: return "DW_AT_explicit"; |
| 1704 | case DW_AT_object_pointer: return "DW_AT_object_pointer"; |
| 1705 | case DW_AT_endianity: return "DW_AT_endianity"; |
| 1706 | case DW_AT_elemental: return "DW_AT_elemental"; |
| 1707 | case DW_AT_pure: return "DW_AT_pure"; |
| 1708 | case DW_AT_recursive: return "DW_AT_recursive"; |
| 1709 | |
| 1710 | /* HP and SGI/MIPS extensions. */ |
| 1711 | case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin"; |
| 1712 | case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin"; |
| 1713 | case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin"; |
| 1714 | case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor"; |
| 1715 | case DW_AT_MIPS_software_pipeline_depth: return "DW_AT_MIPS_software_pipeline_depth"; |
| 1716 | case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name"; |
| 1717 | case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride"; |
| 1718 | case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name"; |
| 1719 | case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin"; |
| 1720 | case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines"; |
| 1721 | |
| 1722 | /* HP Extensions. */ |
| 1723 | case DW_AT_HP_block_index: return "DW_AT_HP_block_index"; |
| 1724 | case DW_AT_HP_actuals_stmt_list: return "DW_AT_HP_actuals_stmt_list"; |
| 1725 | case DW_AT_HP_proc_per_section: return "DW_AT_HP_proc_per_section"; |
| 1726 | case DW_AT_HP_raw_data_ptr: return "DW_AT_HP_raw_data_ptr"; |
| 1727 | case DW_AT_HP_pass_by_reference: return "DW_AT_HP_pass_by_reference"; |
| 1728 | case DW_AT_HP_opt_level: return "DW_AT_HP_opt_level"; |
| 1729 | case DW_AT_HP_prof_version_id: return "DW_AT_HP_prof_version_id"; |
| 1730 | case DW_AT_HP_opt_flags: return "DW_AT_HP_opt_flags"; |
| 1731 | case DW_AT_HP_cold_region_low_pc: return "DW_AT_HP_cold_region_low_pc"; |
| 1732 | case DW_AT_HP_cold_region_high_pc: return "DW_AT_HP_cold_region_high_pc"; |
| 1733 | case DW_AT_HP_all_variables_modifiable: return "DW_AT_HP_all_variables_modifiable"; |
| 1734 | case DW_AT_HP_linkage_name: return "DW_AT_HP_linkage_name"; |
| 1735 | case DW_AT_HP_prof_flags: return "DW_AT_HP_prof_flags"; |
| 1736 | |
| 1737 | /* One value is shared by the MIPS and HP extensions: */ |
| 1738 | case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable"; |
| 1739 | |
| 1740 | /* GNU extensions. */ |
| 1741 | case DW_AT_sf_names: return "DW_AT_sf_names"; |
| 1742 | case DW_AT_src_info: return "DW_AT_src_info"; |
| 1743 | case DW_AT_mac_info: return "DW_AT_mac_info"; |
| 1744 | case DW_AT_src_coords: return "DW_AT_src_coords"; |
| 1745 | case DW_AT_body_begin: return "DW_AT_body_begin"; |
| 1746 | case DW_AT_body_end: return "DW_AT_body_end"; |
| 1747 | case DW_AT_GNU_vector: return "DW_AT_GNU_vector"; |
| 1748 | |
| 1749 | /* UPC extension. */ |
| 1750 | case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled"; |
| 1751 | |
| 1752 | /* PGI (STMicroelectronics) extensions. */ |
| 1753 | case DW_AT_PGI_lbase: return "DW_AT_PGI_lbase"; |
| 1754 | case DW_AT_PGI_soffset: return "DW_AT_PGI_soffset"; |
| 1755 | case DW_AT_PGI_lstride: return "DW_AT_PGI_lstride"; |
| 1756 | |
| 1757 | default: |
| 1758 | { |
| 1759 | static char buffer[100]; |
| 1760 | |
| 1761 | snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), |
| 1762 | attribute); |
| 1763 | return buffer; |
| 1764 | } |
| 1765 | } |
| 1766 | } |
| 1767 | |
| 1768 | static unsigned char * |
| 1769 | read_and_display_attr (unsigned long attribute, |
| 1770 | unsigned long form, |
| 1771 | unsigned char * data, |
| 1772 | unsigned long cu_offset, |
| 1773 | unsigned long pointer_size, |
| 1774 | unsigned long offset_size, |
| 1775 | int dwarf_version, |
| 1776 | debug_info * debug_info_p, |
| 1777 | int do_loc, |
| 1778 | struct dwarf_section * section) |
| 1779 | { |
| 1780 | if (!do_loc) |
| 1781 | printf (" %-18s:", get_AT_name (attribute)); |
| 1782 | data = read_and_display_attr_value (attribute, form, data, cu_offset, |
| 1783 | pointer_size, offset_size, |
| 1784 | dwarf_version, debug_info_p, |
| 1785 | do_loc, section); |
| 1786 | if (!do_loc) |
| 1787 | printf ("\n"); |
| 1788 | return data; |
| 1789 | } |
| 1790 | |
| 1791 | |
| 1792 | /* Process the contents of a .debug_info section. If do_loc is non-zero |
| 1793 | then we are scanning for location lists and we do not want to display |
| 1794 | anything to the user. */ |
| 1795 | |
| 1796 | static int |
| 1797 | process_debug_info (struct dwarf_section *section, |
| 1798 | void *file, |
| 1799 | int do_loc) |
| 1800 | { |
| 1801 | unsigned char *start = section->start; |
| 1802 | unsigned char *end = start + section->size; |
| 1803 | unsigned char *section_begin; |
| 1804 | unsigned int unit; |
| 1805 | unsigned int num_units = 0; |
| 1806 | |
| 1807 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1808 | && num_debug_info_entries == 0) |
| 1809 | { |
| 1810 | unsigned long length; |
| 1811 | |
| 1812 | /* First scan the section to get the number of comp units. */ |
| 1813 | for (section_begin = start, num_units = 0; section_begin < end; |
| 1814 | num_units ++) |
| 1815 | { |
| 1816 | /* Read the first 4 bytes. For a 32-bit DWARF section, this |
| 1817 | will be the length. For a 64-bit DWARF section, it'll be |
| 1818 | the escape code 0xffffffff followed by an 8 byte length. */ |
| 1819 | length = byte_get (section_begin, 4); |
| 1820 | |
| 1821 | if (length == 0xffffffff) |
| 1822 | { |
| 1823 | length = byte_get (section_begin + 4, 8); |
| 1824 | section_begin += length + 12; |
| 1825 | } |
| 1826 | else if (length >= 0xfffffff0 && length < 0xffffffff) |
| 1827 | { |
| 1828 | warn (_("Reserved length value (%lx) found in section %s\n"), length, section->name); |
| 1829 | return 0; |
| 1830 | } |
| 1831 | else |
| 1832 | section_begin += length + 4; |
| 1833 | |
| 1834 | /* Negative values are illegal, they may even cause infinite |
| 1835 | looping. This can happen if we can't accurately apply |
| 1836 | relocations to an object file. */ |
| 1837 | if ((signed long) length <= 0) |
| 1838 | { |
| 1839 | warn (_("Corrupt unit length (%lx) found in section %s\n"), length, section->name); |
| 1840 | return 0; |
| 1841 | } |
| 1842 | } |
| 1843 | |
| 1844 | if (num_units == 0) |
| 1845 | { |
| 1846 | error (_("No comp units in %s section ?"), section->name); |
| 1847 | return 0; |
| 1848 | } |
| 1849 | |
| 1850 | /* Then allocate an array to hold the information. */ |
| 1851 | debug_information = cmalloc (num_units, |
| 1852 | sizeof (* debug_information)); |
| 1853 | if (debug_information == NULL) |
| 1854 | { |
| 1855 | error (_("Not enough memory for a debug info array of %u entries"), |
| 1856 | num_units); |
| 1857 | return 0; |
| 1858 | } |
| 1859 | } |
| 1860 | |
| 1861 | if (!do_loc) |
| 1862 | { |
| 1863 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 1864 | |
| 1865 | load_debug_section (str, file); |
| 1866 | } |
| 1867 | |
| 1868 | load_debug_section (abbrev, file); |
| 1869 | if (debug_displays [abbrev].section.start == NULL) |
| 1870 | { |
| 1871 | warn (_("Unable to locate %s section!\n"), |
| 1872 | debug_displays [abbrev].section.name); |
| 1873 | return 0; |
| 1874 | } |
| 1875 | |
| 1876 | for (section_begin = start, unit = 0; start < end; unit++) |
| 1877 | { |
| 1878 | DWARF2_Internal_CompUnit compunit; |
| 1879 | unsigned char *hdrptr; |
| 1880 | unsigned char *cu_abbrev_offset_ptr; |
| 1881 | unsigned char *tags; |
| 1882 | int level; |
| 1883 | unsigned long cu_offset; |
| 1884 | int offset_size; |
| 1885 | int initial_length_size; |
| 1886 | |
| 1887 | hdrptr = start; |
| 1888 | |
| 1889 | compunit.cu_length = byte_get (hdrptr, 4); |
| 1890 | hdrptr += 4; |
| 1891 | |
| 1892 | if (compunit.cu_length == 0xffffffff) |
| 1893 | { |
| 1894 | compunit.cu_length = byte_get (hdrptr, 8); |
| 1895 | hdrptr += 8; |
| 1896 | offset_size = 8; |
| 1897 | initial_length_size = 12; |
| 1898 | } |
| 1899 | else |
| 1900 | { |
| 1901 | offset_size = 4; |
| 1902 | initial_length_size = 4; |
| 1903 | } |
| 1904 | |
| 1905 | compunit.cu_version = byte_get (hdrptr, 2); |
| 1906 | hdrptr += 2; |
| 1907 | |
| 1908 | cu_offset = start - section_begin; |
| 1909 | |
| 1910 | cu_abbrev_offset_ptr = hdrptr; |
| 1911 | compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size); |
| 1912 | hdrptr += offset_size; |
| 1913 | |
| 1914 | compunit.cu_pointer_size = byte_get (hdrptr, 1); |
| 1915 | hdrptr += 1; |
| 1916 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1917 | && num_debug_info_entries == 0) |
| 1918 | { |
| 1919 | debug_information [unit].cu_offset = cu_offset; |
| 1920 | debug_information [unit].pointer_size |
| 1921 | = compunit.cu_pointer_size; |
| 1922 | debug_information [unit].base_address = 0; |
| 1923 | debug_information [unit].loc_offsets = NULL; |
| 1924 | debug_information [unit].have_frame_base = NULL; |
| 1925 | debug_information [unit].max_loc_offsets = 0; |
| 1926 | debug_information [unit].num_loc_offsets = 0; |
| 1927 | debug_information [unit].range_lists = NULL; |
| 1928 | debug_information [unit].max_range_lists= 0; |
| 1929 | debug_information [unit].num_range_lists = 0; |
| 1930 | } |
| 1931 | |
| 1932 | if (!do_loc) |
| 1933 | { |
| 1934 | printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset); |
| 1935 | printf (_(" Length: 0x%lx (%s)\n"), compunit.cu_length, |
| 1936 | initial_length_size == 8 ? "64-bit" : "32-bit"); |
| 1937 | printf (_(" Version: %d\n"), compunit.cu_version); |
| 1938 | printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset); |
| 1939 | printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size); |
| 1940 | } |
| 1941 | |
| 1942 | if (cu_offset + compunit.cu_length + initial_length_size |
| 1943 | > section->size) |
| 1944 | { |
| 1945 | warn (_("Debug info is corrupted, length of CU at %lx extends beyond end of section (length = %lx)\n"), |
| 1946 | cu_offset, compunit.cu_length); |
| 1947 | break; |
| 1948 | } |
| 1949 | tags = hdrptr; |
| 1950 | start += compunit.cu_length + initial_length_size; |
| 1951 | |
| 1952 | if (compunit.cu_version != 2 && compunit.cu_version != 3) |
| 1953 | { |
| 1954 | warn (_("CU at offset %lx contains corrupt or unsupported version number: %d.\n"), |
| 1955 | cu_offset, compunit.cu_version); |
| 1956 | continue; |
| 1957 | } |
| 1958 | |
| 1959 | free_abbrevs (); |
| 1960 | |
| 1961 | /* Process the abbrevs used by this compilation unit. DWARF |
| 1962 | sections under Mach-O have non-zero addresses. */ |
| 1963 | if (compunit.cu_abbrev_offset >= debug_displays [abbrev].section.size) |
| 1964 | warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"), |
| 1965 | (unsigned long) compunit.cu_abbrev_offset, |
| 1966 | (unsigned long) debug_displays [abbrev].section.size); |
| 1967 | else |
| 1968 | process_abbrev_section |
| 1969 | ((unsigned char *) debug_displays [abbrev].section.start |
| 1970 | + compunit.cu_abbrev_offset - debug_displays [abbrev].section.address, |
| 1971 | (unsigned char *) debug_displays [abbrev].section.start |
| 1972 | + debug_displays [abbrev].section.size); |
| 1973 | |
| 1974 | level = 0; |
| 1975 | while (tags < start) |
| 1976 | { |
| 1977 | unsigned int bytes_read; |
| 1978 | unsigned long abbrev_number; |
| 1979 | unsigned long die_offset; |
| 1980 | abbrev_entry *entry; |
| 1981 | abbrev_attr *attr; |
| 1982 | |
| 1983 | die_offset = tags - section_begin; |
| 1984 | |
| 1985 | abbrev_number = read_leb128 (tags, & bytes_read, 0); |
| 1986 | tags += bytes_read; |
| 1987 | |
| 1988 | /* A null DIE marks the end of a list of siblings. */ |
| 1989 | if (abbrev_number == 0) |
| 1990 | { |
| 1991 | --level; |
| 1992 | if (level < 0) |
| 1993 | { |
| 1994 | static unsigned num_bogus_warns = 0; |
| 1995 | |
| 1996 | if (num_bogus_warns < 3) |
| 1997 | { |
| 1998 | warn (_("Bogus end-of-siblings marker detected at offset %lx in .debug_info section\n"), |
| 1999 | die_offset); |
| 2000 | num_bogus_warns ++; |
| 2001 | if (num_bogus_warns == 3) |
| 2002 | warn (_("Further warnings about bogus end-of-sibling markers suppressed\n")); |
| 2003 | } |
| 2004 | } |
| 2005 | continue; |
| 2006 | } |
| 2007 | |
| 2008 | if (!do_loc) |
| 2009 | printf (_(" <%d><%lx>: Abbrev Number: %lu"), |
| 2010 | level, die_offset, abbrev_number); |
| 2011 | |
| 2012 | /* Scan through the abbreviation list until we reach the |
| 2013 | correct entry. */ |
| 2014 | for (entry = first_abbrev; |
| 2015 | entry && entry->entry != abbrev_number; |
| 2016 | entry = entry->next) |
| 2017 | continue; |
| 2018 | |
| 2019 | if (entry == NULL) |
| 2020 | { |
| 2021 | if (!do_loc) |
| 2022 | { |
| 2023 | printf ("\n"); |
| 2024 | fflush (stdout); |
| 2025 | } |
| 2026 | warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"), |
| 2027 | die_offset, abbrev_number); |
| 2028 | return 0; |
| 2029 | } |
| 2030 | |
| 2031 | if (!do_loc) |
| 2032 | printf (_(" (%s)\n"), get_TAG_name (entry->tag)); |
| 2033 | |
| 2034 | switch (entry->tag) |
| 2035 | { |
| 2036 | default: |
| 2037 | need_base_address = 0; |
| 2038 | break; |
| 2039 | case DW_TAG_compile_unit: |
| 2040 | need_base_address = 1; |
| 2041 | break; |
| 2042 | case DW_TAG_entry_point: |
| 2043 | case DW_TAG_subprogram: |
| 2044 | need_base_address = 0; |
| 2045 | /* Assuming that there is no DW_AT_frame_base. */ |
| 2046 | have_frame_base = 0; |
| 2047 | break; |
| 2048 | } |
| 2049 | |
| 2050 | for (attr = entry->first_attr; attr; attr = attr->next) |
| 2051 | { |
| 2052 | if (! do_loc) |
| 2053 | /* Show the offset from where the tag was extracted. */ |
| 2054 | printf (" <%2lx>", (unsigned long)(tags - section_begin)); |
| 2055 | |
| 2056 | tags = read_and_display_attr (attr->attribute, |
| 2057 | attr->form, |
| 2058 | tags, cu_offset, |
| 2059 | compunit.cu_pointer_size, |
| 2060 | offset_size, |
| 2061 | compunit.cu_version, |
| 2062 | debug_information + unit, |
| 2063 | do_loc, section); |
| 2064 | } |
| 2065 | |
| 2066 | if (entry->children) |
| 2067 | ++level; |
| 2068 | } |
| 2069 | } |
| 2070 | |
| 2071 | /* Set num_debug_info_entries here so that it can be used to check if |
| 2072 | we need to process .debug_loc and .debug_ranges sections. */ |
| 2073 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 2074 | && num_debug_info_entries == 0) |
| 2075 | num_debug_info_entries = num_units; |
| 2076 | |
| 2077 | if (!do_loc) |
| 2078 | { |
| 2079 | printf ("\n"); |
| 2080 | } |
| 2081 | |
| 2082 | return 1; |
| 2083 | } |
| 2084 | |
| 2085 | /* Locate and scan the .debug_info section in the file and record the pointer |
| 2086 | sizes and offsets for the compilation units in it. Usually an executable |
| 2087 | will have just one pointer size, but this is not guaranteed, and so we try |
| 2088 | not to make any assumptions. Returns zero upon failure, or the number of |
| 2089 | compilation units upon success. */ |
| 2090 | |
| 2091 | static unsigned int |
| 2092 | load_debug_info (void * file) |
| 2093 | { |
| 2094 | /* Reset the last pointer size so that we can issue correct error |
| 2095 | messages if we are displaying the contents of more than one section. */ |
| 2096 | last_pointer_size = 0; |
| 2097 | warned_about_missing_comp_units = FALSE; |
| 2098 | |
| 2099 | /* If we have already tried and failed to load the .debug_info |
| 2100 | section then do not bother to repear the task. */ |
| 2101 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
| 2102 | return 0; |
| 2103 | |
| 2104 | /* If we already have the information there is nothing else to do. */ |
| 2105 | if (num_debug_info_entries > 0) |
| 2106 | return num_debug_info_entries; |
| 2107 | |
| 2108 | if (load_debug_section (info, file) |
| 2109 | && process_debug_info (&debug_displays [info].section, file, 1)) |
| 2110 | return num_debug_info_entries; |
| 2111 | |
| 2112 | num_debug_info_entries = DEBUG_INFO_UNAVAILABLE; |
| 2113 | return 0; |
| 2114 | } |
| 2115 | |
| 2116 | static int |
| 2117 | display_debug_lines_raw (struct dwarf_section *section, |
| 2118 | unsigned char *data, |
| 2119 | unsigned char *end) |
| 2120 | { |
| 2121 | unsigned char *start = section->start; |
| 2122 | |
| 2123 | printf (_("Raw dump of debug contents of section %s:\n\n"), |
| 2124 | section->name); |
| 2125 | |
| 2126 | while (data < end) |
| 2127 | { |
| 2128 | DWARF2_Internal_LineInfo info; |
| 2129 | unsigned char *standard_opcodes; |
| 2130 | unsigned char *end_of_sequence; |
| 2131 | unsigned char *hdrptr; |
| 2132 | unsigned long hdroff; |
| 2133 | int initial_length_size; |
| 2134 | int offset_size; |
| 2135 | int i; |
| 2136 | |
| 2137 | hdrptr = data; |
| 2138 | hdroff = hdrptr - start; |
| 2139 | |
| 2140 | /* Check the length of the block. */ |
| 2141 | info.li_length = byte_get (hdrptr, 4); |
| 2142 | hdrptr += 4; |
| 2143 | |
| 2144 | if (info.li_length == 0xffffffff) |
| 2145 | { |
| 2146 | /* This section is 64-bit DWARF 3. */ |
| 2147 | info.li_length = byte_get (hdrptr, 8); |
| 2148 | hdrptr += 8; |
| 2149 | offset_size = 8; |
| 2150 | initial_length_size = 12; |
| 2151 | } |
| 2152 | else |
| 2153 | { |
| 2154 | offset_size = 4; |
| 2155 | initial_length_size = 4; |
| 2156 | } |
| 2157 | |
| 2158 | if (info.li_length + initial_length_size > section->size) |
| 2159 | { |
| 2160 | warn |
| 2161 | (_("The information in section %s appears to be corrupt - the section is too small\n"), |
| 2162 | section->name); |
| 2163 | return 0; |
| 2164 | } |
| 2165 | |
| 2166 | /* Check its version number. */ |
| 2167 | info.li_version = byte_get (hdrptr, 2); |
| 2168 | hdrptr += 2; |
| 2169 | if (info.li_version != 2 && info.li_version != 3) |
| 2170 | { |
| 2171 | warn (_("Only DWARF version 2 and 3 line info is currently supported.\n")); |
| 2172 | return 0; |
| 2173 | } |
| 2174 | |
| 2175 | info.li_prologue_length = byte_get (hdrptr, offset_size); |
| 2176 | hdrptr += offset_size; |
| 2177 | info.li_min_insn_length = byte_get (hdrptr, 1); |
| 2178 | hdrptr++; |
| 2179 | info.li_default_is_stmt = byte_get (hdrptr, 1); |
| 2180 | hdrptr++; |
| 2181 | info.li_line_base = byte_get (hdrptr, 1); |
| 2182 | hdrptr++; |
| 2183 | info.li_line_range = byte_get (hdrptr, 1); |
| 2184 | hdrptr++; |
| 2185 | info.li_opcode_base = byte_get (hdrptr, 1); |
| 2186 | hdrptr++; |
| 2187 | |
| 2188 | /* Sign extend the line base field. */ |
| 2189 | info.li_line_base <<= 24; |
| 2190 | info.li_line_base >>= 24; |
| 2191 | |
| 2192 | printf (_(" Offset: 0x%lx\n"), hdroff); |
| 2193 | printf (_(" Length: %ld\n"), info.li_length); |
| 2194 | printf (_(" DWARF Version: %d\n"), info.li_version); |
| 2195 | printf (_(" Prologue Length: %d\n"), info.li_prologue_length); |
| 2196 | printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length); |
| 2197 | printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt); |
| 2198 | printf (_(" Line Base: %d\n"), info.li_line_base); |
| 2199 | printf (_(" Line Range: %d\n"), info.li_line_range); |
| 2200 | printf (_(" Opcode Base: %d\n"), info.li_opcode_base); |
| 2201 | |
| 2202 | end_of_sequence = data + info.li_length + initial_length_size; |
| 2203 | |
| 2204 | reset_state_machine (info.li_default_is_stmt); |
| 2205 | |
| 2206 | /* Display the contents of the Opcodes table. */ |
| 2207 | standard_opcodes = hdrptr; |
| 2208 | |
| 2209 | printf (_("\n Opcodes:\n")); |
| 2210 | |
| 2211 | for (i = 1; i < info.li_opcode_base; i++) |
| 2212 | printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); |
| 2213 | |
| 2214 | /* Display the contents of the Directory table. */ |
| 2215 | data = standard_opcodes + info.li_opcode_base - 1; |
| 2216 | |
| 2217 | if (*data == 0) |
| 2218 | printf (_("\n The Directory Table is empty.\n")); |
| 2219 | else |
| 2220 | { |
| 2221 | printf (_("\n The Directory Table:\n")); |
| 2222 | |
| 2223 | while (*data != 0) |
| 2224 | { |
| 2225 | printf (_(" %s\n"), data); |
| 2226 | |
| 2227 | data += strlen ((char *) data) + 1; |
| 2228 | } |
| 2229 | } |
| 2230 | |
| 2231 | /* Skip the NUL at the end of the table. */ |
| 2232 | data++; |
| 2233 | |
| 2234 | /* Display the contents of the File Name table. */ |
| 2235 | if (*data == 0) |
| 2236 | printf (_("\n The File Name Table is empty.\n")); |
| 2237 | else |
| 2238 | { |
| 2239 | printf (_("\n The File Name Table:\n")); |
| 2240 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); |
| 2241 | |
| 2242 | while (*data != 0) |
| 2243 | { |
| 2244 | unsigned char *name; |
| 2245 | unsigned int bytes_read; |
| 2246 | |
| 2247 | printf (_(" %d\t"), ++state_machine_regs.last_file_entry); |
| 2248 | name = data; |
| 2249 | |
| 2250 | data += strlen ((char *) data) + 1; |
| 2251 | |
| 2252 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); |
| 2253 | data += bytes_read; |
| 2254 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); |
| 2255 | data += bytes_read; |
| 2256 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); |
| 2257 | data += bytes_read; |
| 2258 | printf (_("%s\n"), name); |
| 2259 | } |
| 2260 | } |
| 2261 | |
| 2262 | /* Skip the NUL at the end of the table. */ |
| 2263 | data++; |
| 2264 | |
| 2265 | /* Now display the statements. */ |
| 2266 | printf (_("\n Line Number Statements:\n")); |
| 2267 | |
| 2268 | while (data < end_of_sequence) |
| 2269 | { |
| 2270 | unsigned char op_code; |
| 2271 | int adv; |
| 2272 | unsigned long int uladv; |
| 2273 | unsigned int bytes_read; |
| 2274 | |
| 2275 | op_code = *data++; |
| 2276 | |
| 2277 | if (op_code >= info.li_opcode_base) |
| 2278 | { |
| 2279 | op_code -= info.li_opcode_base; |
| 2280 | uladv = (op_code / info.li_line_range) * info.li_min_insn_length; |
| 2281 | state_machine_regs.address += uladv; |
| 2282 | printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"), |
| 2283 | op_code, uladv, state_machine_regs.address); |
| 2284 | adv = (op_code % info.li_line_range) + info.li_line_base; |
| 2285 | state_machine_regs.line += adv; |
| 2286 | printf (_(" and Line by %d to %d\n"), |
| 2287 | adv, state_machine_regs.line); |
| 2288 | } |
| 2289 | else switch (op_code) |
| 2290 | { |
| 2291 | case DW_LNS_extended_op: |
| 2292 | data += process_extended_line_op (data, info.li_default_is_stmt); |
| 2293 | break; |
| 2294 | |
| 2295 | case DW_LNS_copy: |
| 2296 | printf (_(" Copy\n")); |
| 2297 | break; |
| 2298 | |
| 2299 | case DW_LNS_advance_pc: |
| 2300 | uladv = read_leb128 (data, & bytes_read, 0); |
| 2301 | uladv *= info.li_min_insn_length; |
| 2302 | data += bytes_read; |
| 2303 | state_machine_regs.address += uladv; |
| 2304 | printf (_(" Advance PC by %lu to 0x%lx\n"), uladv, |
| 2305 | state_machine_regs.address); |
| 2306 | break; |
| 2307 | |
| 2308 | case DW_LNS_advance_line: |
| 2309 | adv = read_leb128 (data, & bytes_read, 1); |
| 2310 | data += bytes_read; |
| 2311 | state_machine_regs.line += adv; |
| 2312 | printf (_(" Advance Line by %d to %d\n"), adv, |
| 2313 | state_machine_regs.line); |
| 2314 | break; |
| 2315 | |
| 2316 | case DW_LNS_set_file: |
| 2317 | adv = read_leb128 (data, & bytes_read, 0); |
| 2318 | data += bytes_read; |
| 2319 | printf (_(" Set File Name to entry %d in the File Name Table\n"), |
| 2320 | adv); |
| 2321 | state_machine_regs.file = adv; |
| 2322 | break; |
| 2323 | |
| 2324 | case DW_LNS_set_column: |
| 2325 | uladv = read_leb128 (data, & bytes_read, 0); |
| 2326 | data += bytes_read; |
| 2327 | printf (_(" Set column to %lu\n"), uladv); |
| 2328 | state_machine_regs.column = uladv; |
| 2329 | break; |
| 2330 | |
| 2331 | case DW_LNS_negate_stmt: |
| 2332 | adv = state_machine_regs.is_stmt; |
| 2333 | adv = ! adv; |
| 2334 | printf (_(" Set is_stmt to %d\n"), adv); |
| 2335 | state_machine_regs.is_stmt = adv; |
| 2336 | break; |
| 2337 | |
| 2338 | case DW_LNS_set_basic_block: |
| 2339 | printf (_(" Set basic block\n")); |
| 2340 | state_machine_regs.basic_block = 1; |
| 2341 | break; |
| 2342 | |
| 2343 | case DW_LNS_const_add_pc: |
| 2344 | uladv = (((255 - info.li_opcode_base) / info.li_line_range) |
| 2345 | * info.li_min_insn_length); |
| 2346 | state_machine_regs.address += uladv; |
| 2347 | printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv, |
| 2348 | state_machine_regs.address); |
| 2349 | break; |
| 2350 | |
| 2351 | case DW_LNS_fixed_advance_pc: |
| 2352 | uladv = byte_get (data, 2); |
| 2353 | data += 2; |
| 2354 | state_machine_regs.address += uladv; |
| 2355 | printf (_(" Advance PC by fixed size amount %lu to 0x%lx\n"), |
| 2356 | uladv, state_machine_regs.address); |
| 2357 | break; |
| 2358 | |
| 2359 | case DW_LNS_set_prologue_end: |
| 2360 | printf (_(" Set prologue_end to true\n")); |
| 2361 | break; |
| 2362 | |
| 2363 | case DW_LNS_set_epilogue_begin: |
| 2364 | printf (_(" Set epilogue_begin to true\n")); |
| 2365 | break; |
| 2366 | |
| 2367 | case DW_LNS_set_isa: |
| 2368 | uladv = read_leb128 (data, & bytes_read, 0); |
| 2369 | data += bytes_read; |
| 2370 | printf (_(" Set ISA to %lu\n"), uladv); |
| 2371 | break; |
| 2372 | |
| 2373 | default: |
| 2374 | printf (_(" Unknown opcode %d with operands: "), op_code); |
| 2375 | |
| 2376 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) |
| 2377 | { |
| 2378 | printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0), |
| 2379 | i == 1 ? "" : ", "); |
| 2380 | data += bytes_read; |
| 2381 | } |
| 2382 | putchar ('\n'); |
| 2383 | break; |
| 2384 | } |
| 2385 | } |
| 2386 | putchar ('\n'); |
| 2387 | } |
| 2388 | |
| 2389 | return 1; |
| 2390 | } |
| 2391 | |
| 2392 | typedef struct |
| 2393 | { |
| 2394 | unsigned char *name; |
| 2395 | unsigned int directory_index; |
| 2396 | unsigned int modification_date; |
| 2397 | unsigned int length; |
| 2398 | } File_Entry; |
| 2399 | |
| 2400 | /* Output a decoded representation of the .debug_line section. */ |
| 2401 | |
| 2402 | static int |
| 2403 | display_debug_lines_decoded (struct dwarf_section *section, |
| 2404 | unsigned char *data, |
| 2405 | unsigned char *end) |
| 2406 | { |
| 2407 | printf (_("Decoded dump of debug contents of section %s:\n\n"), |
| 2408 | section->name); |
| 2409 | |
| 2410 | while (data < end) |
| 2411 | { |
| 2412 | /* This loop amounts to one iteration per compilation unit. */ |
| 2413 | DWARF2_Internal_LineInfo info; |
| 2414 | unsigned char *standard_opcodes; |
| 2415 | unsigned char *end_of_sequence; |
| 2416 | unsigned char *hdrptr; |
| 2417 | int initial_length_size; |
| 2418 | int offset_size; |
| 2419 | int i; |
| 2420 | File_Entry *file_table = NULL; |
| 2421 | unsigned char **directory_table = NULL; |
| 2422 | unsigned int prev_line = 0; |
| 2423 | |
| 2424 | hdrptr = data; |
| 2425 | |
| 2426 | /* Extract information from the Line Number Program Header. |
| 2427 | (section 6.2.4 in the Dwarf3 doc). */ |
| 2428 | |
| 2429 | /* Get the length of this CU's line number information block. */ |
| 2430 | info.li_length = byte_get (hdrptr, 4); |
| 2431 | hdrptr += 4; |
| 2432 | |
| 2433 | if (info.li_length == 0xffffffff) |
| 2434 | { |
| 2435 | /* This section is 64-bit DWARF 3. */ |
| 2436 | info.li_length = byte_get (hdrptr, 8); |
| 2437 | hdrptr += 8; |
| 2438 | offset_size = 8; |
| 2439 | initial_length_size = 12; |
| 2440 | } |
| 2441 | else |
| 2442 | { |
| 2443 | offset_size = 4; |
| 2444 | initial_length_size = 4; |
| 2445 | } |
| 2446 | |
| 2447 | if (info.li_length + initial_length_size > section->size) |
| 2448 | { |
| 2449 | warn (_("The line info appears to be corrupt - " |
| 2450 | "the section is too small\n")); |
| 2451 | return 0; |
| 2452 | } |
| 2453 | |
| 2454 | /* Get this CU's Line Number Block version number. */ |
| 2455 | info.li_version = byte_get (hdrptr, 2); |
| 2456 | hdrptr += 2; |
| 2457 | if (info.li_version != 2 && info.li_version != 3) |
| 2458 | { |
| 2459 | warn (_("Only DWARF version 2 and 3 line info is currently " |
| 2460 | "supported.\n")); |
| 2461 | return 0; |
| 2462 | } |
| 2463 | |
| 2464 | info.li_prologue_length = byte_get (hdrptr, offset_size); |
| 2465 | hdrptr += offset_size; |
| 2466 | info.li_min_insn_length = byte_get (hdrptr, 1); |
| 2467 | hdrptr++; |
| 2468 | info.li_default_is_stmt = byte_get (hdrptr, 1); |
| 2469 | hdrptr++; |
| 2470 | info.li_line_base = byte_get (hdrptr, 1); |
| 2471 | hdrptr++; |
| 2472 | info.li_line_range = byte_get (hdrptr, 1); |
| 2473 | hdrptr++; |
| 2474 | info.li_opcode_base = byte_get (hdrptr, 1); |
| 2475 | hdrptr++; |
| 2476 | |
| 2477 | /* Sign extend the line base field. */ |
| 2478 | info.li_line_base <<= 24; |
| 2479 | info.li_line_base >>= 24; |
| 2480 | |
| 2481 | /* Find the end of this CU's Line Number Information Block. */ |
| 2482 | end_of_sequence = data + info.li_length + initial_length_size; |
| 2483 | |
| 2484 | reset_state_machine (info.li_default_is_stmt); |
| 2485 | |
| 2486 | /* Save a pointer to the contents of the Opcodes table. */ |
| 2487 | standard_opcodes = hdrptr; |
| 2488 | |
| 2489 | /* Traverse the Directory table just to count entries. */ |
| 2490 | data = standard_opcodes + info.li_opcode_base - 1; |
| 2491 | if (*data != 0) |
| 2492 | { |
| 2493 | unsigned int n_directories = 0; |
| 2494 | unsigned char *ptr_directory_table = data; |
| 2495 | int i; |
| 2496 | |
| 2497 | while (*data != 0) |
| 2498 | { |
| 2499 | data += strlen ((char *) data) + 1; |
| 2500 | n_directories++; |
| 2501 | } |
| 2502 | |
| 2503 | /* Go through the directory table again to save the directories. */ |
| 2504 | directory_table = xmalloc (n_directories * sizeof (unsigned char *)); |
| 2505 | |
| 2506 | i = 0; |
| 2507 | while (*ptr_directory_table != 0) |
| 2508 | { |
| 2509 | directory_table[i] = ptr_directory_table; |
| 2510 | ptr_directory_table += strlen ((char *) ptr_directory_table) + 1; |
| 2511 | i++; |
| 2512 | } |
| 2513 | } |
| 2514 | /* Skip the NUL at the end of the table. */ |
| 2515 | data++; |
| 2516 | |
| 2517 | /* Traverse the File Name table just to count the entries. */ |
| 2518 | if (*data != 0) |
| 2519 | { |
| 2520 | unsigned int n_files = 0; |
| 2521 | unsigned char *ptr_file_name_table = data; |
| 2522 | int i; |
| 2523 | |
| 2524 | while (*data != 0) |
| 2525 | { |
| 2526 | unsigned int bytes_read; |
| 2527 | |
| 2528 | /* Skip Name, directory index, last modification time and length |
| 2529 | of file. */ |
| 2530 | data += strlen ((char *) data) + 1; |
| 2531 | read_leb128 (data, & bytes_read, 0); |
| 2532 | data += bytes_read; |
| 2533 | read_leb128 (data, & bytes_read, 0); |
| 2534 | data += bytes_read; |
| 2535 | read_leb128 (data, & bytes_read, 0); |
| 2536 | data += bytes_read; |
| 2537 | |
| 2538 | n_files++; |
| 2539 | } |
| 2540 | |
| 2541 | /* Go through the file table again to save the strings. */ |
| 2542 | file_table = xmalloc (n_files * sizeof (File_Entry)); |
| 2543 | |
| 2544 | i = 0; |
| 2545 | while (*ptr_file_name_table != 0) |
| 2546 | { |
| 2547 | unsigned int bytes_read; |
| 2548 | |
| 2549 | file_table[i].name = ptr_file_name_table; |
| 2550 | ptr_file_name_table += strlen ((char *) ptr_file_name_table) + 1; |
| 2551 | |
| 2552 | /* We are not interested in directory, time or size. */ |
| 2553 | file_table[i].directory_index = read_leb128 (ptr_file_name_table, |
| 2554 | & bytes_read, 0); |
| 2555 | ptr_file_name_table += bytes_read; |
| 2556 | file_table[i].modification_date = read_leb128 (ptr_file_name_table, |
| 2557 | & bytes_read, 0); |
| 2558 | ptr_file_name_table += bytes_read; |
| 2559 | file_table[i].length = read_leb128 (ptr_file_name_table, & bytes_read, 0); |
| 2560 | ptr_file_name_table += bytes_read; |
| 2561 | i++; |
| 2562 | } |
| 2563 | i = 0; |
| 2564 | |
| 2565 | /* Print the Compilation Unit's name and a header. */ |
| 2566 | if (directory_table == NULL) |
| 2567 | { |
| 2568 | printf (_("CU: %s:\n"), file_table[0].name); |
| 2569 | printf (_("File name Line number Starting address\n")); |
| 2570 | } |
| 2571 | else |
| 2572 | { |
| 2573 | if (do_wide || strlen ((char *) directory_table[0]) < 76) |
| 2574 | { |
| 2575 | printf (_("CU: %s/%s:\n"), directory_table[0], |
| 2576 | file_table[0].name); |
| 2577 | } |
| 2578 | else |
| 2579 | { |
| 2580 | printf (_("%s:\n"), file_table[0].name); |
| 2581 | } |
| 2582 | printf (_("File name Line number Starting address\n")); |
| 2583 | } |
| 2584 | } |
| 2585 | |
| 2586 | /* Skip the NUL at the end of the table. */ |
| 2587 | data++; |
| 2588 | |
| 2589 | /* This loop iterates through the Dwarf Line Number Program. */ |
| 2590 | while (data < end_of_sequence) |
| 2591 | { |
| 2592 | unsigned char op_code; |
| 2593 | int adv; |
| 2594 | unsigned long int uladv; |
| 2595 | unsigned int bytes_read; |
| 2596 | int is_special_opcode = 0; |
| 2597 | |
| 2598 | op_code = *data++; |
| 2599 | prev_line = state_machine_regs.line; |
| 2600 | |
| 2601 | if (op_code >= info.li_opcode_base) |
| 2602 | { |
| 2603 | op_code -= info.li_opcode_base; |
| 2604 | uladv = (op_code / info.li_line_range) * info.li_min_insn_length; |
| 2605 | state_machine_regs.address += uladv; |
| 2606 | |
| 2607 | adv = (op_code % info.li_line_range) + info.li_line_base; |
| 2608 | state_machine_regs.line += adv; |
| 2609 | is_special_opcode = 1; |
| 2610 | } |
| 2611 | else switch (op_code) |
| 2612 | { |
| 2613 | case DW_LNS_extended_op: |
| 2614 | { |
| 2615 | unsigned int ext_op_code_len; |
| 2616 | unsigned int bytes_read; |
| 2617 | unsigned char ext_op_code; |
| 2618 | unsigned char *op_code_data = data; |
| 2619 | |
| 2620 | ext_op_code_len = read_leb128 (op_code_data, &bytes_read, 0); |
| 2621 | op_code_data += bytes_read; |
| 2622 | |
| 2623 | if (ext_op_code_len == 0) |
| 2624 | { |
| 2625 | warn (_("badly formed extended line op encountered!\n")); |
| 2626 | break; |
| 2627 | } |
| 2628 | ext_op_code_len += bytes_read; |
| 2629 | ext_op_code = *op_code_data++; |
| 2630 | |
| 2631 | switch (ext_op_code) |
| 2632 | { |
| 2633 | case DW_LNE_end_sequence: |
| 2634 | reset_state_machine (info.li_default_is_stmt); |
| 2635 | break; |
| 2636 | case DW_LNE_set_address: |
| 2637 | state_machine_regs.address = |
| 2638 | byte_get (op_code_data, ext_op_code_len - bytes_read - 1); |
| 2639 | break; |
| 2640 | case DW_LNE_define_file: |
| 2641 | { |
| 2642 | unsigned int dir_index = 0; |
| 2643 | |
| 2644 | ++state_machine_regs.last_file_entry; |
| 2645 | op_code_data += strlen ((char *) op_code_data) + 1; |
| 2646 | dir_index = read_leb128 (op_code_data, & bytes_read, 0); |
| 2647 | op_code_data += bytes_read; |
| 2648 | read_leb128 (op_code_data, & bytes_read, 0); |
| 2649 | op_code_data += bytes_read; |
| 2650 | read_leb128 (op_code_data, & bytes_read, 0); |
| 2651 | |
| 2652 | printf (_("%s:\n"), directory_table[dir_index]); |
| 2653 | break; |
| 2654 | } |
| 2655 | default: |
| 2656 | printf (_("UNKNOWN: length %d\n"), ext_op_code_len - bytes_read); |
| 2657 | break; |
| 2658 | } |
| 2659 | data += ext_op_code_len; |
| 2660 | break; |
| 2661 | } |
| 2662 | case DW_LNS_copy: |
| 2663 | break; |
| 2664 | |
| 2665 | case DW_LNS_advance_pc: |
| 2666 | uladv = read_leb128 (data, & bytes_read, 0); |
| 2667 | uladv *= info.li_min_insn_length; |
| 2668 | data += bytes_read; |
| 2669 | state_machine_regs.address += uladv; |
| 2670 | break; |
| 2671 | |
| 2672 | case DW_LNS_advance_line: |
| 2673 | adv = read_leb128 (data, & bytes_read, 1); |
| 2674 | data += bytes_read; |
| 2675 | state_machine_regs.line += adv; |
| 2676 | break; |
| 2677 | |
| 2678 | case DW_LNS_set_file: |
| 2679 | adv = read_leb128 (data, & bytes_read, 0); |
| 2680 | data += bytes_read; |
| 2681 | state_machine_regs.file = adv; |
| 2682 | if (file_table[state_machine_regs.file - 1].directory_index == 0) |
| 2683 | { |
| 2684 | /* If directory index is 0, that means current directory. */ |
| 2685 | printf (_("\n./%s:[++]\n"), |
| 2686 | file_table[state_machine_regs.file - 1].name); |
| 2687 | } |
| 2688 | else |
| 2689 | { |
| 2690 | /* The directory index starts counting at 1. */ |
| 2691 | printf (_("\n%s/%s:\n"), |
| 2692 | directory_table[file_table[state_machine_regs.file - 1].directory_index - 1], |
| 2693 | file_table[state_machine_regs.file - 1].name); |
| 2694 | } |
| 2695 | break; |
| 2696 | |
| 2697 | case DW_LNS_set_column: |
| 2698 | uladv = read_leb128 (data, & bytes_read, 0); |
| 2699 | data += bytes_read; |
| 2700 | state_machine_regs.column = uladv; |
| 2701 | break; |
| 2702 | |
| 2703 | case DW_LNS_negate_stmt: |
| 2704 | adv = state_machine_regs.is_stmt; |
| 2705 | adv = ! adv; |
| 2706 | state_machine_regs.is_stmt = adv; |
| 2707 | break; |
| 2708 | |
| 2709 | case DW_LNS_set_basic_block: |
| 2710 | state_machine_regs.basic_block = 1; |
| 2711 | break; |
| 2712 | |
| 2713 | case DW_LNS_const_add_pc: |
| 2714 | uladv = (((255 - info.li_opcode_base) / info.li_line_range) |
| 2715 | * info.li_min_insn_length); |
| 2716 | state_machine_regs.address += uladv; |
| 2717 | break; |
| 2718 | |
| 2719 | case DW_LNS_fixed_advance_pc: |
| 2720 | uladv = byte_get (data, 2); |
| 2721 | data += 2; |
| 2722 | state_machine_regs.address += uladv; |
| 2723 | break; |
| 2724 | |
| 2725 | case DW_LNS_set_prologue_end: |
| 2726 | break; |
| 2727 | |
| 2728 | case DW_LNS_set_epilogue_begin: |
| 2729 | break; |
| 2730 | |
| 2731 | case DW_LNS_set_isa: |
| 2732 | uladv = read_leb128 (data, & bytes_read, 0); |
| 2733 | data += bytes_read; |
| 2734 | printf (_(" Set ISA to %lu\n"), uladv); |
| 2735 | break; |
| 2736 | |
| 2737 | default: |
| 2738 | printf (_(" Unknown opcode %d with operands: "), op_code); |
| 2739 | |
| 2740 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) |
| 2741 | { |
| 2742 | printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0), |
| 2743 | i == 1 ? "" : ", "); |
| 2744 | data += bytes_read; |
| 2745 | } |
| 2746 | putchar ('\n'); |
| 2747 | break; |
| 2748 | } |
| 2749 | |
| 2750 | /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row |
| 2751 | to the DWARF address/line matrix. */ |
| 2752 | if ((is_special_opcode) || (op_code == DW_LNE_end_sequence) |
| 2753 | || (op_code == DW_LNS_copy)) |
| 2754 | { |
| 2755 | const unsigned int MAX_FILENAME_LENGTH = 35; |
| 2756 | char *fileName = (char *)file_table[state_machine_regs.file - 1].name; |
| 2757 | char *newFileName = NULL; |
| 2758 | size_t fileNameLength = strlen (fileName); |
| 2759 | |
| 2760 | if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide)) |
| 2761 | { |
| 2762 | newFileName = xmalloc (MAX_FILENAME_LENGTH + 1); |
| 2763 | /* Truncate file name */ |
| 2764 | strncpy (newFileName, |
| 2765 | fileName + fileNameLength - MAX_FILENAME_LENGTH, |
| 2766 | MAX_FILENAME_LENGTH + 1); |
| 2767 | } |
| 2768 | else |
| 2769 | { |
| 2770 | newFileName = xmalloc (fileNameLength + 1); |
| 2771 | strncpy (newFileName, fileName, fileNameLength + 1); |
| 2772 | } |
| 2773 | |
| 2774 | if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH)) |
| 2775 | { |
| 2776 | printf (_("%-35s %11d %#18lx\n"), newFileName, |
| 2777 | state_machine_regs.line, state_machine_regs.address); |
| 2778 | } |
| 2779 | else |
| 2780 | { |
| 2781 | printf (_("%s %11d %#18lx\n"), newFileName, |
| 2782 | state_machine_regs.line, state_machine_regs.address); |
| 2783 | } |
| 2784 | |
| 2785 | if (op_code == DW_LNE_end_sequence) |
| 2786 | printf ("\n"); |
| 2787 | |
| 2788 | free (newFileName); |
| 2789 | } |
| 2790 | } |
| 2791 | free (file_table); |
| 2792 | file_table = NULL; |
| 2793 | free (directory_table); |
| 2794 | directory_table = NULL; |
| 2795 | putchar ('\n'); |
| 2796 | } |
| 2797 | |
| 2798 | return 1; |
| 2799 | } |
| 2800 | |
| 2801 | static int |
| 2802 | display_debug_lines (struct dwarf_section *section, void *file) |
| 2803 | { |
| 2804 | unsigned char *data = section->start; |
| 2805 | unsigned char *end = data + section->size; |
| 2806 | int retValRaw = 1; |
| 2807 | int retValDecoded = 1; |
| 2808 | |
| 2809 | if (load_debug_info (file) == 0) |
| 2810 | { |
| 2811 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 2812 | section->name); |
| 2813 | return 0; |
| 2814 | } |
| 2815 | |
| 2816 | if (do_debug_lines & FLAG_DEBUG_LINES_RAW) |
| 2817 | retValRaw = display_debug_lines_raw (section, data, end); |
| 2818 | |
| 2819 | if (do_debug_lines & FLAG_DEBUG_LINES_DECODED) |
| 2820 | retValDecoded = display_debug_lines_decoded (section, data, end); |
| 2821 | |
| 2822 | if (!retValRaw || !retValDecoded) |
| 2823 | return 0; |
| 2824 | |
| 2825 | return 1; |
| 2826 | } |
| 2827 | |
| 2828 | static debug_info * |
| 2829 | find_debug_info_for_offset (unsigned long offset) |
| 2830 | { |
| 2831 | unsigned int i; |
| 2832 | |
| 2833 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
| 2834 | return NULL; |
| 2835 | |
| 2836 | for (i = 0; i < num_debug_info_entries; i++) |
| 2837 | if (debug_information[i].cu_offset == offset) |
| 2838 | return debug_information + i; |
| 2839 | |
| 2840 | return NULL; |
| 2841 | } |
| 2842 | |
| 2843 | static int |
| 2844 | display_debug_pubnames (struct dwarf_section *section, |
| 2845 | void *file ATTRIBUTE_UNUSED) |
| 2846 | { |
| 2847 | DWARF2_Internal_PubNames pubnames; |
| 2848 | unsigned char *start = section->start; |
| 2849 | unsigned char *end = start + section->size; |
| 2850 | |
| 2851 | /* It does not matter if this load fails, |
| 2852 | we test for that later on. */ |
| 2853 | load_debug_info (file); |
| 2854 | |
| 2855 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 2856 | |
| 2857 | while (start < end) |
| 2858 | { |
| 2859 | unsigned char *data; |
| 2860 | unsigned long offset; |
| 2861 | int offset_size, initial_length_size; |
| 2862 | |
| 2863 | data = start; |
| 2864 | |
| 2865 | pubnames.pn_length = byte_get (data, 4); |
| 2866 | data += 4; |
| 2867 | if (pubnames.pn_length == 0xffffffff) |
| 2868 | { |
| 2869 | pubnames.pn_length = byte_get (data, 8); |
| 2870 | data += 8; |
| 2871 | offset_size = 8; |
| 2872 | initial_length_size = 12; |
| 2873 | } |
| 2874 | else |
| 2875 | { |
| 2876 | offset_size = 4; |
| 2877 | initial_length_size = 4; |
| 2878 | } |
| 2879 | |
| 2880 | pubnames.pn_version = byte_get (data, 2); |
| 2881 | data += 2; |
| 2882 | |
| 2883 | pubnames.pn_offset = byte_get (data, offset_size); |
| 2884 | data += offset_size; |
| 2885 | |
| 2886 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
| 2887 | && num_debug_info_entries > 0 |
| 2888 | && find_debug_info_for_offset (pubnames.pn_offset) == NULL) |
| 2889 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), |
| 2890 | pubnames.pn_offset, section->name); |
| 2891 | |
| 2892 | pubnames.pn_size = byte_get (data, offset_size); |
| 2893 | data += offset_size; |
| 2894 | |
| 2895 | start += pubnames.pn_length + initial_length_size; |
| 2896 | |
| 2897 | if (pubnames.pn_version != 2 && pubnames.pn_version != 3) |
| 2898 | { |
| 2899 | static int warned = 0; |
| 2900 | |
| 2901 | if (! warned) |
| 2902 | { |
| 2903 | warn (_("Only DWARF 2 and 3 pubnames are currently supported\n")); |
| 2904 | warned = 1; |
| 2905 | } |
| 2906 | |
| 2907 | continue; |
| 2908 | } |
| 2909 | |
| 2910 | printf (_(" Length: %ld\n"), |
| 2911 | pubnames.pn_length); |
| 2912 | printf (_(" Version: %d\n"), |
| 2913 | pubnames.pn_version); |
| 2914 | printf (_(" Offset into .debug_info section: 0x%lx\n"), |
| 2915 | pubnames.pn_offset); |
| 2916 | printf (_(" Size of area in .debug_info section: %ld\n"), |
| 2917 | pubnames.pn_size); |
| 2918 | |
| 2919 | printf (_("\n Offset\tName\n")); |
| 2920 | |
| 2921 | do |
| 2922 | { |
| 2923 | offset = byte_get (data, offset_size); |
| 2924 | |
| 2925 | if (offset != 0) |
| 2926 | { |
| 2927 | data += offset_size; |
| 2928 | printf (" %-6lx\t%s\n", offset, data); |
| 2929 | data += strlen ((char *) data) + 1; |
| 2930 | } |
| 2931 | } |
| 2932 | while (offset != 0); |
| 2933 | } |
| 2934 | |
| 2935 | printf ("\n"); |
| 2936 | return 1; |
| 2937 | } |
| 2938 | |
| 2939 | static int |
| 2940 | display_debug_macinfo (struct dwarf_section *section, |
| 2941 | void *file ATTRIBUTE_UNUSED) |
| 2942 | { |
| 2943 | unsigned char *start = section->start; |
| 2944 | unsigned char *end = start + section->size; |
| 2945 | unsigned char *curr = start; |
| 2946 | unsigned int bytes_read; |
| 2947 | enum dwarf_macinfo_record_type op; |
| 2948 | |
| 2949 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 2950 | |
| 2951 | while (curr < end) |
| 2952 | { |
| 2953 | unsigned int lineno; |
| 2954 | const char *string; |
| 2955 | |
| 2956 | op = *curr; |
| 2957 | curr++; |
| 2958 | |
| 2959 | switch (op) |
| 2960 | { |
| 2961 | case DW_MACINFO_start_file: |
| 2962 | { |
| 2963 | unsigned int filenum; |
| 2964 | |
| 2965 | lineno = read_leb128 (curr, & bytes_read, 0); |
| 2966 | curr += bytes_read; |
| 2967 | filenum = read_leb128 (curr, & bytes_read, 0); |
| 2968 | curr += bytes_read; |
| 2969 | |
| 2970 | printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"), |
| 2971 | lineno, filenum); |
| 2972 | } |
| 2973 | break; |
| 2974 | |
| 2975 | case DW_MACINFO_end_file: |
| 2976 | printf (_(" DW_MACINFO_end_file\n")); |
| 2977 | break; |
| 2978 | |
| 2979 | case DW_MACINFO_define: |
| 2980 | lineno = read_leb128 (curr, & bytes_read, 0); |
| 2981 | curr += bytes_read; |
| 2982 | string = (char *) curr; |
| 2983 | curr += strlen (string) + 1; |
| 2984 | printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"), |
| 2985 | lineno, string); |
| 2986 | break; |
| 2987 | |
| 2988 | case DW_MACINFO_undef: |
| 2989 | lineno = read_leb128 (curr, & bytes_read, 0); |
| 2990 | curr += bytes_read; |
| 2991 | string = (char *) curr; |
| 2992 | curr += strlen (string) + 1; |
| 2993 | printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), |
| 2994 | lineno, string); |
| 2995 | break; |
| 2996 | |
| 2997 | case DW_MACINFO_vendor_ext: |
| 2998 | { |
| 2999 | unsigned int constant; |
| 3000 | |
| 3001 | constant = read_leb128 (curr, & bytes_read, 0); |
| 3002 | curr += bytes_read; |
| 3003 | string = (char *) curr; |
| 3004 | curr += strlen (string) + 1; |
| 3005 | printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), |
| 3006 | constant, string); |
| 3007 | } |
| 3008 | break; |
| 3009 | } |
| 3010 | } |
| 3011 | |
| 3012 | return 1; |
| 3013 | } |
| 3014 | |
| 3015 | static int |
| 3016 | display_debug_abbrev (struct dwarf_section *section, |
| 3017 | void *file ATTRIBUTE_UNUSED) |
| 3018 | { |
| 3019 | abbrev_entry *entry; |
| 3020 | unsigned char *start = section->start; |
| 3021 | unsigned char *end = start + section->size; |
| 3022 | |
| 3023 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3024 | |
| 3025 | do |
| 3026 | { |
| 3027 | free_abbrevs (); |
| 3028 | |
| 3029 | start = process_abbrev_section (start, end); |
| 3030 | |
| 3031 | if (first_abbrev == NULL) |
| 3032 | continue; |
| 3033 | |
| 3034 | printf (_(" Number TAG\n")); |
| 3035 | |
| 3036 | for (entry = first_abbrev; entry; entry = entry->next) |
| 3037 | { |
| 3038 | abbrev_attr *attr; |
| 3039 | |
| 3040 | printf (_(" %ld %s [%s]\n"), |
| 3041 | entry->entry, |
| 3042 | get_TAG_name (entry->tag), |
| 3043 | entry->children ? _("has children") : _("no children")); |
| 3044 | |
| 3045 | for (attr = entry->first_attr; attr; attr = attr->next) |
| 3046 | printf (_(" %-18s %s\n"), |
| 3047 | get_AT_name (attr->attribute), |
| 3048 | get_FORM_name (attr->form)); |
| 3049 | } |
| 3050 | } |
| 3051 | while (start); |
| 3052 | |
| 3053 | printf ("\n"); |
| 3054 | |
| 3055 | return 1; |
| 3056 | } |
| 3057 | |
| 3058 | static int |
| 3059 | display_debug_loc (struct dwarf_section *section, void *file) |
| 3060 | { |
| 3061 | unsigned char *start = section->start; |
| 3062 | unsigned char *section_end; |
| 3063 | unsigned long bytes; |
| 3064 | unsigned char *section_begin = start; |
| 3065 | unsigned int num_loc_list = 0; |
| 3066 | unsigned long last_offset = 0; |
| 3067 | unsigned int first = 0; |
| 3068 | unsigned int i; |
| 3069 | unsigned int j; |
| 3070 | int seen_first_offset = 0; |
| 3071 | int use_debug_info = 1; |
| 3072 | unsigned char *next; |
| 3073 | |
| 3074 | bytes = section->size; |
| 3075 | section_end = start + bytes; |
| 3076 | |
| 3077 | if (bytes == 0) |
| 3078 | { |
| 3079 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 3080 | return 0; |
| 3081 | } |
| 3082 | |
| 3083 | if (load_debug_info (file) == 0) |
| 3084 | { |
| 3085 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 3086 | section->name); |
| 3087 | return 0; |
| 3088 | } |
| 3089 | |
| 3090 | /* Check the order of location list in .debug_info section. If |
| 3091 | offsets of location lists are in the ascending order, we can |
| 3092 | use `debug_information' directly. */ |
| 3093 | for (i = 0; i < num_debug_info_entries; i++) |
| 3094 | { |
| 3095 | unsigned int num; |
| 3096 | |
| 3097 | num = debug_information [i].num_loc_offsets; |
| 3098 | num_loc_list += num; |
| 3099 | |
| 3100 | /* Check if we can use `debug_information' directly. */ |
| 3101 | if (use_debug_info && num != 0) |
| 3102 | { |
| 3103 | if (!seen_first_offset) |
| 3104 | { |
| 3105 | /* This is the first location list. */ |
| 3106 | last_offset = debug_information [i].loc_offsets [0]; |
| 3107 | first = i; |
| 3108 | seen_first_offset = 1; |
| 3109 | j = 1; |
| 3110 | } |
| 3111 | else |
| 3112 | j = 0; |
| 3113 | |
| 3114 | for (; j < num; j++) |
| 3115 | { |
| 3116 | if (last_offset > |
| 3117 | debug_information [i].loc_offsets [j]) |
| 3118 | { |
| 3119 | use_debug_info = 0; |
| 3120 | break; |
| 3121 | } |
| 3122 | last_offset = debug_information [i].loc_offsets [j]; |
| 3123 | } |
| 3124 | } |
| 3125 | } |
| 3126 | |
| 3127 | if (!use_debug_info) |
| 3128 | /* FIXME: Should we handle this case? */ |
| 3129 | error (_("Location lists in .debug_info section aren't in ascending order!\n")); |
| 3130 | |
| 3131 | if (!seen_first_offset) |
| 3132 | error (_("No location lists in .debug_info section!\n")); |
| 3133 | |
| 3134 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 3135 | if (debug_information [first].num_loc_offsets > 0 |
| 3136 | && debug_information [first].loc_offsets [0] != section->address) |
| 3137 | warn (_("Location lists in %s section start at 0x%lx\n"), |
| 3138 | section->name, debug_information [first].loc_offsets [0]); |
| 3139 | |
| 3140 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3141 | printf (_(" Offset Begin End Expression\n")); |
| 3142 | |
| 3143 | seen_first_offset = 0; |
| 3144 | for (i = first; i < num_debug_info_entries; i++) |
| 3145 | { |
| 3146 | dwarf_vma begin; |
| 3147 | dwarf_vma end; |
| 3148 | unsigned short length; |
| 3149 | unsigned long offset; |
| 3150 | unsigned int pointer_size; |
| 3151 | unsigned long cu_offset; |
| 3152 | unsigned long base_address; |
| 3153 | int need_frame_base; |
| 3154 | int has_frame_base; |
| 3155 | |
| 3156 | pointer_size = debug_information [i].pointer_size; |
| 3157 | cu_offset = debug_information [i].cu_offset; |
| 3158 | |
| 3159 | for (j = 0; j < debug_information [i].num_loc_offsets; j++) |
| 3160 | { |
| 3161 | has_frame_base = debug_information [i].have_frame_base [j]; |
| 3162 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 3163 | offset = debug_information [i].loc_offsets [j] - section->address; |
| 3164 | next = section_begin + offset; |
| 3165 | base_address = debug_information [i].base_address; |
| 3166 | |
| 3167 | if (!seen_first_offset) |
| 3168 | seen_first_offset = 1; |
| 3169 | else |
| 3170 | { |
| 3171 | if (start < next) |
| 3172 | warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"), |
| 3173 | (unsigned long) (start - section_begin), |
| 3174 | (unsigned long) (next - section_begin)); |
| 3175 | else if (start > next) |
| 3176 | warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"), |
| 3177 | (unsigned long) (start - section_begin), |
| 3178 | (unsigned long) (next - section_begin)); |
| 3179 | } |
| 3180 | start = next; |
| 3181 | |
| 3182 | if (offset >= bytes) |
| 3183 | { |
| 3184 | warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"), |
| 3185 | offset); |
| 3186 | continue; |
| 3187 | } |
| 3188 | |
| 3189 | while (1) |
| 3190 | { |
| 3191 | if (start + 2 * pointer_size > section_end) |
| 3192 | { |
| 3193 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 3194 | offset); |
| 3195 | break; |
| 3196 | } |
| 3197 | |
| 3198 | /* Note: we use sign extension here in order to be sure that |
| 3199 | we can detect the -1 escape value. Sign extension into the |
| 3200 | top 32 bits of a 32-bit address will not affect the values |
| 3201 | that we display since we always show hex values, and always |
| 3202 | the bottom 32-bits. */ |
| 3203 | begin = byte_get_signed (start, pointer_size); |
| 3204 | start += pointer_size; |
| 3205 | end = byte_get_signed (start, pointer_size); |
| 3206 | start += pointer_size; |
| 3207 | |
| 3208 | printf (" %8.8lx ", offset); |
| 3209 | |
| 3210 | if (begin == 0 && end == 0) |
| 3211 | { |
| 3212 | printf (_("<End of list>\n")); |
| 3213 | break; |
| 3214 | } |
| 3215 | |
| 3216 | /* Check base address specifiers. */ |
| 3217 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
| 3218 | { |
| 3219 | base_address = end; |
| 3220 | print_dwarf_vma (begin, pointer_size); |
| 3221 | print_dwarf_vma (end, pointer_size); |
| 3222 | printf (_("(base address)\n")); |
| 3223 | continue; |
| 3224 | } |
| 3225 | |
| 3226 | if (start + 2 > section_end) |
| 3227 | { |
| 3228 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 3229 | offset); |
| 3230 | break; |
| 3231 | } |
| 3232 | |
| 3233 | length = byte_get (start, 2); |
| 3234 | start += 2; |
| 3235 | |
| 3236 | if (start + length > section_end) |
| 3237 | { |
| 3238 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 3239 | offset); |
| 3240 | break; |
| 3241 | } |
| 3242 | |
| 3243 | print_dwarf_vma (begin + base_address, pointer_size); |
| 3244 | print_dwarf_vma (end + base_address, pointer_size); |
| 3245 | |
| 3246 | putchar ('('); |
| 3247 | need_frame_base = decode_location_expression (start, |
| 3248 | pointer_size, |
| 3249 | length, |
| 3250 | cu_offset, section); |
| 3251 | putchar (')'); |
| 3252 | |
| 3253 | if (need_frame_base && !has_frame_base) |
| 3254 | printf (_(" [without DW_AT_frame_base]")); |
| 3255 | |
| 3256 | if (begin == end) |
| 3257 | fputs (_(" (start == end)"), stdout); |
| 3258 | else if (begin > end) |
| 3259 | fputs (_(" (start > end)"), stdout); |
| 3260 | |
| 3261 | putchar ('\n'); |
| 3262 | |
| 3263 | start += length; |
| 3264 | } |
| 3265 | } |
| 3266 | } |
| 3267 | |
| 3268 | if (start < section_end) |
| 3269 | warn (_("There are %ld unused bytes at the end of section %s\n"), |
| 3270 | (long) (section_end - start), section->name); |
| 3271 | putchar ('\n'); |
| 3272 | return 1; |
| 3273 | } |
| 3274 | |
| 3275 | static int |
| 3276 | display_debug_str (struct dwarf_section *section, |
| 3277 | void *file ATTRIBUTE_UNUSED) |
| 3278 | { |
| 3279 | unsigned char *start = section->start; |
| 3280 | unsigned long bytes = section->size; |
| 3281 | dwarf_vma addr = section->address; |
| 3282 | |
| 3283 | if (bytes == 0) |
| 3284 | { |
| 3285 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 3286 | return 0; |
| 3287 | } |
| 3288 | |
| 3289 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3290 | |
| 3291 | while (bytes) |
| 3292 | { |
| 3293 | int j; |
| 3294 | int k; |
| 3295 | int lbytes; |
| 3296 | |
| 3297 | lbytes = (bytes > 16 ? 16 : bytes); |
| 3298 | |
| 3299 | printf (" 0x%8.8lx ", (unsigned long) addr); |
| 3300 | |
| 3301 | for (j = 0; j < 16; j++) |
| 3302 | { |
| 3303 | if (j < lbytes) |
| 3304 | printf ("%2.2x", start[j]); |
| 3305 | else |
| 3306 | printf (" "); |
| 3307 | |
| 3308 | if ((j & 3) == 3) |
| 3309 | printf (" "); |
| 3310 | } |
| 3311 | |
| 3312 | for (j = 0; j < lbytes; j++) |
| 3313 | { |
| 3314 | k = start[j]; |
| 3315 | if (k >= ' ' && k < 0x80) |
| 3316 | printf ("%c", k); |
| 3317 | else |
| 3318 | printf ("."); |
| 3319 | } |
| 3320 | |
| 3321 | putchar ('\n'); |
| 3322 | |
| 3323 | start += lbytes; |
| 3324 | addr += lbytes; |
| 3325 | bytes -= lbytes; |
| 3326 | } |
| 3327 | |
| 3328 | putchar ('\n'); |
| 3329 | |
| 3330 | return 1; |
| 3331 | } |
| 3332 | |
| 3333 | static int |
| 3334 | display_debug_info (struct dwarf_section *section, void *file) |
| 3335 | { |
| 3336 | return process_debug_info (section, file, 0); |
| 3337 | } |
| 3338 | |
| 3339 | |
| 3340 | static int |
| 3341 | display_debug_aranges (struct dwarf_section *section, |
| 3342 | void *file ATTRIBUTE_UNUSED) |
| 3343 | { |
| 3344 | unsigned char *start = section->start; |
| 3345 | unsigned char *end = start + section->size; |
| 3346 | |
| 3347 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3348 | |
| 3349 | /* It does not matter if this load fails, |
| 3350 | we test for that later on. */ |
| 3351 | load_debug_info (file); |
| 3352 | |
| 3353 | while (start < end) |
| 3354 | { |
| 3355 | unsigned char *hdrptr; |
| 3356 | DWARF2_Internal_ARange arange; |
| 3357 | unsigned char *ranges; |
| 3358 | dwarf_vma length; |
| 3359 | dwarf_vma address; |
| 3360 | unsigned char address_size; |
| 3361 | int excess; |
| 3362 | int offset_size; |
| 3363 | int initial_length_size; |
| 3364 | |
| 3365 | hdrptr = start; |
| 3366 | |
| 3367 | arange.ar_length = byte_get (hdrptr, 4); |
| 3368 | hdrptr += 4; |
| 3369 | |
| 3370 | if (arange.ar_length == 0xffffffff) |
| 3371 | { |
| 3372 | arange.ar_length = byte_get (hdrptr, 8); |
| 3373 | hdrptr += 8; |
| 3374 | offset_size = 8; |
| 3375 | initial_length_size = 12; |
| 3376 | } |
| 3377 | else |
| 3378 | { |
| 3379 | offset_size = 4; |
| 3380 | initial_length_size = 4; |
| 3381 | } |
| 3382 | |
| 3383 | arange.ar_version = byte_get (hdrptr, 2); |
| 3384 | hdrptr += 2; |
| 3385 | |
| 3386 | arange.ar_info_offset = byte_get (hdrptr, offset_size); |
| 3387 | hdrptr += offset_size; |
| 3388 | |
| 3389 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
| 3390 | && num_debug_info_entries > 0 |
| 3391 | && find_debug_info_for_offset (arange.ar_info_offset) == NULL) |
| 3392 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), |
| 3393 | arange.ar_info_offset, section->name); |
| 3394 | |
| 3395 | arange.ar_pointer_size = byte_get (hdrptr, 1); |
| 3396 | hdrptr += 1; |
| 3397 | |
| 3398 | arange.ar_segment_size = byte_get (hdrptr, 1); |
| 3399 | hdrptr += 1; |
| 3400 | |
| 3401 | if (arange.ar_version != 2 && arange.ar_version != 3) |
| 3402 | { |
| 3403 | warn (_("Only DWARF 2 and 3 aranges are currently supported.\n")); |
| 3404 | break; |
| 3405 | } |
| 3406 | |
| 3407 | printf (_(" Length: %ld\n"), arange.ar_length); |
| 3408 | printf (_(" Version: %d\n"), arange.ar_version); |
| 3409 | printf (_(" Offset into .debug_info: 0x%lx\n"), arange.ar_info_offset); |
| 3410 | printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size); |
| 3411 | printf (_(" Segment Size: %d\n"), arange.ar_segment_size); |
| 3412 | |
| 3413 | address_size = arange.ar_pointer_size + arange.ar_segment_size; |
| 3414 | |
| 3415 | /* The DWARF spec does not require that the address size be a power |
| 3416 | of two, but we do. This will have to change if we ever encounter |
| 3417 | an uneven architecture. */ |
| 3418 | if ((address_size & (address_size - 1)) != 0) |
| 3419 | { |
| 3420 | warn (_("Pointer size + Segment size is not a power of two.\n")); |
| 3421 | break; |
| 3422 | } |
| 3423 | |
| 3424 | if (address_size > 4) |
| 3425 | printf (_("\n Address Length\n")); |
| 3426 | else |
| 3427 | printf (_("\n Address Length\n")); |
| 3428 | |
| 3429 | ranges = hdrptr; |
| 3430 | |
| 3431 | /* Must pad to an alignment boundary that is twice the address size. */ |
| 3432 | excess = (hdrptr - start) % (2 * address_size); |
| 3433 | if (excess) |
| 3434 | ranges += (2 * address_size) - excess; |
| 3435 | |
| 3436 | start += arange.ar_length + initial_length_size; |
| 3437 | |
| 3438 | while (ranges + 2 * address_size <= start) |
| 3439 | { |
| 3440 | address = byte_get (ranges, address_size); |
| 3441 | |
| 3442 | ranges += address_size; |
| 3443 | |
| 3444 | length = byte_get (ranges, address_size); |
| 3445 | |
| 3446 | ranges += address_size; |
| 3447 | |
| 3448 | printf (" "); |
| 3449 | print_dwarf_vma (address, address_size); |
| 3450 | print_dwarf_vma (length, address_size); |
| 3451 | putchar ('\n'); |
| 3452 | } |
| 3453 | } |
| 3454 | |
| 3455 | printf ("\n"); |
| 3456 | |
| 3457 | return 1; |
| 3458 | } |
| 3459 | |
| 3460 | static int |
| 3461 | display_debug_ranges (struct dwarf_section *section, |
| 3462 | void *file ATTRIBUTE_UNUSED) |
| 3463 | { |
| 3464 | unsigned char *start = section->start; |
| 3465 | unsigned char *section_end; |
| 3466 | unsigned long bytes; |
| 3467 | unsigned char *section_begin = start; |
| 3468 | unsigned int num_range_list = 0; |
| 3469 | unsigned long last_offset = 0; |
| 3470 | unsigned int first = 0; |
| 3471 | unsigned int i; |
| 3472 | unsigned int j; |
| 3473 | int seen_first_offset = 0; |
| 3474 | int use_debug_info = 1; |
| 3475 | unsigned char *next; |
| 3476 | |
| 3477 | bytes = section->size; |
| 3478 | section_end = start + bytes; |
| 3479 | |
| 3480 | if (bytes == 0) |
| 3481 | { |
| 3482 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 3483 | return 0; |
| 3484 | } |
| 3485 | |
| 3486 | if (load_debug_info (file) == 0) |
| 3487 | { |
| 3488 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 3489 | section->name); |
| 3490 | return 0; |
| 3491 | } |
| 3492 | |
| 3493 | /* Check the order of range list in .debug_info section. If |
| 3494 | offsets of range lists are in the ascending order, we can |
| 3495 | use `debug_information' directly. */ |
| 3496 | for (i = 0; i < num_debug_info_entries; i++) |
| 3497 | { |
| 3498 | unsigned int num; |
| 3499 | |
| 3500 | num = debug_information [i].num_range_lists; |
| 3501 | num_range_list += num; |
| 3502 | |
| 3503 | /* Check if we can use `debug_information' directly. */ |
| 3504 | if (use_debug_info && num != 0) |
| 3505 | { |
| 3506 | if (!seen_first_offset) |
| 3507 | { |
| 3508 | /* This is the first range list. */ |
| 3509 | last_offset = debug_information [i].range_lists [0]; |
| 3510 | first = i; |
| 3511 | seen_first_offset = 1; |
| 3512 | j = 1; |
| 3513 | } |
| 3514 | else |
| 3515 | j = 0; |
| 3516 | |
| 3517 | for (; j < num; j++) |
| 3518 | { |
| 3519 | if (last_offset > |
| 3520 | debug_information [i].range_lists [j]) |
| 3521 | { |
| 3522 | use_debug_info = 0; |
| 3523 | break; |
| 3524 | } |
| 3525 | last_offset = debug_information [i].range_lists [j]; |
| 3526 | } |
| 3527 | } |
| 3528 | } |
| 3529 | |
| 3530 | if (!use_debug_info) |
| 3531 | /* FIXME: Should we handle this case? */ |
| 3532 | error (_("Range lists in .debug_info section aren't in ascending order!\n")); |
| 3533 | |
| 3534 | if (!seen_first_offset) |
| 3535 | error (_("No range lists in .debug_info section!\n")); |
| 3536 | |
| 3537 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 3538 | if (debug_information [first].num_range_lists > 0 |
| 3539 | && debug_information [first].range_lists [0] != section->address) |
| 3540 | warn (_("Range lists in %s section start at 0x%lx\n"), |
| 3541 | section->name, debug_information [first].range_lists [0]); |
| 3542 | |
| 3543 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3544 | printf (_(" Offset Begin End\n")); |
| 3545 | |
| 3546 | seen_first_offset = 0; |
| 3547 | for (i = first; i < num_debug_info_entries; i++) |
| 3548 | { |
| 3549 | dwarf_vma begin; |
| 3550 | dwarf_vma end; |
| 3551 | unsigned long offset; |
| 3552 | unsigned int pointer_size; |
| 3553 | unsigned long base_address; |
| 3554 | |
| 3555 | pointer_size = debug_information [i].pointer_size; |
| 3556 | |
| 3557 | for (j = 0; j < debug_information [i].num_range_lists; j++) |
| 3558 | { |
| 3559 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 3560 | offset = debug_information [i].range_lists [j] - section->address; |
| 3561 | next = section_begin + offset; |
| 3562 | base_address = debug_information [i].base_address; |
| 3563 | |
| 3564 | if (!seen_first_offset) |
| 3565 | seen_first_offset = 1; |
| 3566 | else |
| 3567 | { |
| 3568 | if (start < next) |
| 3569 | warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"), |
| 3570 | (unsigned long) (start - section_begin), |
| 3571 | (unsigned long) (next - section_begin), section->name); |
| 3572 | else if (start > next) |
| 3573 | warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), |
| 3574 | (unsigned long) (start - section_begin), |
| 3575 | (unsigned long) (next - section_begin), section->name); |
| 3576 | } |
| 3577 | start = next; |
| 3578 | |
| 3579 | while (1) |
| 3580 | { |
| 3581 | /* Note: we use sign extension here in order to be sure that |
| 3582 | we can detect the -1 escape value. Sign extension into the |
| 3583 | top 32 bits of a 32-bit address will not affect the values |
| 3584 | that we display since we always show hex values, and always |
| 3585 | the bottom 32-bits. */ |
| 3586 | begin = byte_get_signed (start, pointer_size); |
| 3587 | start += pointer_size; |
| 3588 | end = byte_get_signed (start, pointer_size); |
| 3589 | start += pointer_size; |
| 3590 | |
| 3591 | printf (" %8.8lx ", offset); |
| 3592 | |
| 3593 | if (begin == 0 && end == 0) |
| 3594 | { |
| 3595 | printf (_("<End of list>\n")); |
| 3596 | break; |
| 3597 | } |
| 3598 | |
| 3599 | /* Check base address specifiers. */ |
| 3600 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
| 3601 | { |
| 3602 | base_address = end; |
| 3603 | print_dwarf_vma (begin, pointer_size); |
| 3604 | print_dwarf_vma (end, pointer_size); |
| 3605 | printf ("(base address)\n"); |
| 3606 | continue; |
| 3607 | } |
| 3608 | |
| 3609 | print_dwarf_vma (begin + base_address, pointer_size); |
| 3610 | print_dwarf_vma (end + base_address, pointer_size); |
| 3611 | |
| 3612 | if (begin == end) |
| 3613 | fputs (_("(start == end)"), stdout); |
| 3614 | else if (begin > end) |
| 3615 | fputs (_("(start > end)"), stdout); |
| 3616 | |
| 3617 | putchar ('\n'); |
| 3618 | } |
| 3619 | } |
| 3620 | } |
| 3621 | putchar ('\n'); |
| 3622 | return 1; |
| 3623 | } |
| 3624 | |
| 3625 | typedef struct Frame_Chunk |
| 3626 | { |
| 3627 | struct Frame_Chunk *next; |
| 3628 | unsigned char *chunk_start; |
| 3629 | int ncols; |
| 3630 | /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */ |
| 3631 | short int *col_type; |
| 3632 | int *col_offset; |
| 3633 | char *augmentation; |
| 3634 | unsigned int code_factor; |
| 3635 | int data_factor; |
| 3636 | unsigned long pc_begin; |
| 3637 | unsigned long pc_range; |
| 3638 | int cfa_reg; |
| 3639 | int cfa_offset; |
| 3640 | int ra; |
| 3641 | unsigned char fde_encoding; |
| 3642 | unsigned char cfa_exp; |
| 3643 | } |
| 3644 | Frame_Chunk; |
| 3645 | |
| 3646 | static const char *const *dwarf_regnames; |
| 3647 | static unsigned int dwarf_regnames_count; |
| 3648 | |
| 3649 | /* A marker for a col_type that means this column was never referenced |
| 3650 | in the frame info. */ |
| 3651 | #define DW_CFA_unreferenced (-1) |
| 3652 | |
| 3653 | /* Return 0 if not more space is needed, 1 if more space is needed, |
| 3654 | -1 for invalid reg. */ |
| 3655 | |
| 3656 | static int |
| 3657 | frame_need_space (Frame_Chunk *fc, unsigned int reg) |
| 3658 | { |
| 3659 | int prev = fc->ncols; |
| 3660 | |
| 3661 | if (reg < (unsigned int) fc->ncols) |
| 3662 | return 0; |
| 3663 | |
| 3664 | if (dwarf_regnames_count |
| 3665 | && reg > dwarf_regnames_count) |
| 3666 | return -1; |
| 3667 | |
| 3668 | fc->ncols = reg + 1; |
| 3669 | fc->col_type = xcrealloc (fc->col_type, fc->ncols, sizeof (short int)); |
| 3670 | fc->col_offset = xcrealloc (fc->col_offset, fc->ncols, sizeof (int)); |
| 3671 | |
| 3672 | while (prev < fc->ncols) |
| 3673 | { |
| 3674 | fc->col_type[prev] = DW_CFA_unreferenced; |
| 3675 | fc->col_offset[prev] = 0; |
| 3676 | prev++; |
| 3677 | } |
| 3678 | return 1; |
| 3679 | } |
| 3680 | |
| 3681 | static const char *const dwarf_regnames_i386[] = |
| 3682 | { |
| 3683 | "eax", "ecx", "edx", "ebx", |
| 3684 | "esp", "ebp", "esi", "edi", |
| 3685 | "eip", "eflags", NULL, |
| 3686 | "st0", "st1", "st2", "st3", |
| 3687 | "st4", "st5", "st6", "st7", |
| 3688 | NULL, NULL, |
| 3689 | "xmm0", "xmm1", "xmm2", "xmm3", |
| 3690 | "xmm4", "xmm5", "xmm6", "xmm7", |
| 3691 | "mm0", "mm1", "mm2", "mm3", |
| 3692 | "mm4", "mm5", "mm6", "mm7", |
| 3693 | "fcw", "fsw", "mxcsr", |
| 3694 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, |
| 3695 | "tr", "ldtr" |
| 3696 | }; |
| 3697 | |
| 3698 | static const char *const dwarf_regnames_x86_64[] = |
| 3699 | { |
| 3700 | "rax", "rdx", "rcx", "rbx", |
| 3701 | "rsi", "rdi", "rbp", "rsp", |
| 3702 | "r8", "r9", "r10", "r11", |
| 3703 | "r12", "r13", "r14", "r15", |
| 3704 | "rip", |
| 3705 | "xmm0", "xmm1", "xmm2", "xmm3", |
| 3706 | "xmm4", "xmm5", "xmm6", "xmm7", |
| 3707 | "xmm8", "xmm9", "xmm10", "xmm11", |
| 3708 | "xmm12", "xmm13", "xmm14", "xmm15", |
| 3709 | "st0", "st1", "st2", "st3", |
| 3710 | "st4", "st5", "st6", "st7", |
| 3711 | "mm0", "mm1", "mm2", "mm3", |
| 3712 | "mm4", "mm5", "mm6", "mm7", |
| 3713 | "rflags", |
| 3714 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, |
| 3715 | "fs.base", "gs.base", NULL, NULL, |
| 3716 | "tr", "ldtr", |
| 3717 | "mxcsr", "fcw", "fsw" |
| 3718 | }; |
| 3719 | |
| 3720 | void |
| 3721 | init_dwarf_regnames (unsigned int e_machine) |
| 3722 | { |
| 3723 | switch (e_machine) |
| 3724 | { |
| 3725 | case EM_386: |
| 3726 | case EM_486: |
| 3727 | dwarf_regnames = dwarf_regnames_i386; |
| 3728 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386); |
| 3729 | break; |
| 3730 | |
| 3731 | case EM_X86_64: |
| 3732 | dwarf_regnames = dwarf_regnames_x86_64; |
| 3733 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64); |
| 3734 | break; |
| 3735 | |
| 3736 | default: |
| 3737 | break; |
| 3738 | } |
| 3739 | } |
| 3740 | |
| 3741 | static const char * |
| 3742 | regname (unsigned int regno, int row) |
| 3743 | { |
| 3744 | static char reg[64]; |
| 3745 | if (dwarf_regnames |
| 3746 | && regno < dwarf_regnames_count |
| 3747 | && dwarf_regnames [regno] != NULL) |
| 3748 | { |
| 3749 | if (row) |
| 3750 | return dwarf_regnames [regno]; |
| 3751 | snprintf (reg, sizeof (reg), "r%d (%s)", regno, |
| 3752 | dwarf_regnames [regno]); |
| 3753 | } |
| 3754 | else |
| 3755 | snprintf (reg, sizeof (reg), "r%d", regno); |
| 3756 | return reg; |
| 3757 | } |
| 3758 | |
| 3759 | static void |
| 3760 | frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs) |
| 3761 | { |
| 3762 | int r; |
| 3763 | char tmp[100]; |
| 3764 | |
| 3765 | if (*max_regs < fc->ncols) |
| 3766 | *max_regs = fc->ncols; |
| 3767 | |
| 3768 | if (*need_col_headers) |
| 3769 | { |
| 3770 | static const char *loc = " LOC"; |
| 3771 | |
| 3772 | *need_col_headers = 0; |
| 3773 | |
| 3774 | printf ("%-*s CFA ", eh_addr_size * 2, loc); |
| 3775 | |
| 3776 | for (r = 0; r < *max_regs; r++) |
| 3777 | if (fc->col_type[r] != DW_CFA_unreferenced) |
| 3778 | { |
| 3779 | if (r == fc->ra) |
| 3780 | printf ("ra "); |
| 3781 | else |
| 3782 | printf ("%-5s ", regname (r, 1)); |
| 3783 | } |
| 3784 | |
| 3785 | printf ("\n"); |
| 3786 | } |
| 3787 | |
| 3788 | printf ("%0*lx ", eh_addr_size * 2, fc->pc_begin); |
| 3789 | if (fc->cfa_exp) |
| 3790 | strcpy (tmp, "exp"); |
| 3791 | else |
| 3792 | sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset); |
| 3793 | printf ("%-8s ", tmp); |
| 3794 | |
| 3795 | for (r = 0; r < fc->ncols; r++) |
| 3796 | { |
| 3797 | if (fc->col_type[r] != DW_CFA_unreferenced) |
| 3798 | { |
| 3799 | switch (fc->col_type[r]) |
| 3800 | { |
| 3801 | case DW_CFA_undefined: |
| 3802 | strcpy (tmp, "u"); |
| 3803 | break; |
| 3804 | case DW_CFA_same_value: |
| 3805 | strcpy (tmp, "s"); |
| 3806 | break; |
| 3807 | case DW_CFA_offset: |
| 3808 | sprintf (tmp, "c%+d", fc->col_offset[r]); |
| 3809 | break; |
| 3810 | case DW_CFA_val_offset: |
| 3811 | sprintf (tmp, "v%+d", fc->col_offset[r]); |
| 3812 | break; |
| 3813 | case DW_CFA_register: |
| 3814 | sprintf (tmp, "%s", regname (fc->col_offset[r], 0)); |
| 3815 | break; |
| 3816 | case DW_CFA_expression: |
| 3817 | strcpy (tmp, "exp"); |
| 3818 | break; |
| 3819 | case DW_CFA_val_expression: |
| 3820 | strcpy (tmp, "vexp"); |
| 3821 | break; |
| 3822 | default: |
| 3823 | strcpy (tmp, "n/a"); |
| 3824 | break; |
| 3825 | } |
| 3826 | printf ("%-5s ", tmp); |
| 3827 | } |
| 3828 | } |
| 3829 | printf ("\n"); |
| 3830 | } |
| 3831 | |
| 3832 | #define GET(N) byte_get (start, N); start += N |
| 3833 | #define LEB() read_leb128 (start, & length_return, 0); start += length_return |
| 3834 | #define SLEB() read_leb128 (start, & length_return, 1); start += length_return |
| 3835 | |
| 3836 | static int |
| 3837 | display_debug_frames (struct dwarf_section *section, |
| 3838 | void *file ATTRIBUTE_UNUSED) |
| 3839 | { |
| 3840 | unsigned char *start = section->start; |
| 3841 | unsigned char *end = start + section->size; |
| 3842 | unsigned char *section_start = start; |
| 3843 | Frame_Chunk *chunks = 0; |
| 3844 | Frame_Chunk *remembered_state = 0; |
| 3845 | Frame_Chunk *rs; |
| 3846 | int is_eh = strcmp (section->name, ".eh_frame") == 0; |
| 3847 | unsigned int length_return; |
| 3848 | int max_regs = 0; |
| 3849 | const char *bad_reg = _("bad register: "); |
| 3850 | |
| 3851 | printf (_("Contents of the %s section:\n"), section->name); |
| 3852 | |
| 3853 | while (start < end) |
| 3854 | { |
| 3855 | unsigned char *saved_start; |
| 3856 | unsigned char *block_end; |
| 3857 | unsigned long length; |
| 3858 | unsigned long cie_id; |
| 3859 | Frame_Chunk *fc; |
| 3860 | Frame_Chunk *cie; |
| 3861 | int need_col_headers = 1; |
| 3862 | unsigned char *augmentation_data = NULL; |
| 3863 | unsigned long augmentation_data_len = 0; |
| 3864 | int encoded_ptr_size = eh_addr_size; |
| 3865 | int offset_size; |
| 3866 | int initial_length_size; |
| 3867 | |
| 3868 | saved_start = start; |
| 3869 | length = byte_get (start, 4); start += 4; |
| 3870 | |
| 3871 | if (length == 0) |
| 3872 | { |
| 3873 | printf ("\n%08lx ZERO terminator\n\n", |
| 3874 | (unsigned long)(saved_start - section_start)); |
| 3875 | continue; |
| 3876 | } |
| 3877 | |
| 3878 | if (length == 0xffffffff) |
| 3879 | { |
| 3880 | length = byte_get (start, 8); |
| 3881 | start += 8; |
| 3882 | offset_size = 8; |
| 3883 | initial_length_size = 12; |
| 3884 | } |
| 3885 | else |
| 3886 | { |
| 3887 | offset_size = 4; |
| 3888 | initial_length_size = 4; |
| 3889 | } |
| 3890 | |
| 3891 | block_end = saved_start + length + initial_length_size; |
| 3892 | if (block_end > end) |
| 3893 | { |
| 3894 | warn ("Invalid length %#08lx in FDE at %#08lx\n", |
| 3895 | length, (unsigned long)(saved_start - section_start)); |
| 3896 | block_end = end; |
| 3897 | } |
| 3898 | cie_id = byte_get (start, offset_size); start += offset_size; |
| 3899 | |
| 3900 | if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID)) |
| 3901 | { |
| 3902 | int version; |
| 3903 | |
| 3904 | fc = xmalloc (sizeof (Frame_Chunk)); |
| 3905 | memset (fc, 0, sizeof (Frame_Chunk)); |
| 3906 | |
| 3907 | fc->next = chunks; |
| 3908 | chunks = fc; |
| 3909 | fc->chunk_start = saved_start; |
| 3910 | fc->ncols = 0; |
| 3911 | fc->col_type = xmalloc (sizeof (short int)); |
| 3912 | fc->col_offset = xmalloc (sizeof (int)); |
| 3913 | frame_need_space (fc, max_regs - 1); |
| 3914 | |
| 3915 | version = *start++; |
| 3916 | |
| 3917 | fc->augmentation = (char *) start; |
| 3918 | start = (unsigned char *) strchr ((char *) start, '\0') + 1; |
| 3919 | |
| 3920 | if (fc->augmentation[0] == 'z') |
| 3921 | { |
| 3922 | fc->code_factor = LEB (); |
| 3923 | fc->data_factor = SLEB (); |
| 3924 | if (version == 1) |
| 3925 | { |
| 3926 | fc->ra = GET (1); |
| 3927 | } |
| 3928 | else |
| 3929 | { |
| 3930 | fc->ra = LEB (); |
| 3931 | } |
| 3932 | augmentation_data_len = LEB (); |
| 3933 | augmentation_data = start; |
| 3934 | start += augmentation_data_len; |
| 3935 | } |
| 3936 | else if (strcmp (fc->augmentation, "eh") == 0) |
| 3937 | { |
| 3938 | start += eh_addr_size; |
| 3939 | fc->code_factor = LEB (); |
| 3940 | fc->data_factor = SLEB (); |
| 3941 | if (version == 1) |
| 3942 | { |
| 3943 | fc->ra = GET (1); |
| 3944 | } |
| 3945 | else |
| 3946 | { |
| 3947 | fc->ra = LEB (); |
| 3948 | } |
| 3949 | } |
| 3950 | else |
| 3951 | { |
| 3952 | fc->code_factor = LEB (); |
| 3953 | fc->data_factor = SLEB (); |
| 3954 | if (version == 1) |
| 3955 | { |
| 3956 | fc->ra = GET (1); |
| 3957 | } |
| 3958 | else |
| 3959 | { |
| 3960 | fc->ra = LEB (); |
| 3961 | } |
| 3962 | } |
| 3963 | cie = fc; |
| 3964 | |
| 3965 | if (do_debug_frames_interp) |
| 3966 | printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n", |
| 3967 | (unsigned long)(saved_start - section_start), length, cie_id, |
| 3968 | fc->augmentation, fc->code_factor, fc->data_factor, |
| 3969 | fc->ra); |
| 3970 | else |
| 3971 | { |
| 3972 | printf ("\n%08lx %08lx %08lx CIE\n", |
| 3973 | (unsigned long)(saved_start - section_start), length, cie_id); |
| 3974 | printf (" Version: %d\n", version); |
| 3975 | printf (" Augmentation: \"%s\"\n", fc->augmentation); |
| 3976 | printf (" Code alignment factor: %u\n", fc->code_factor); |
| 3977 | printf (" Data alignment factor: %d\n", fc->data_factor); |
| 3978 | printf (" Return address column: %d\n", fc->ra); |
| 3979 | |
| 3980 | if (augmentation_data_len) |
| 3981 | { |
| 3982 | unsigned long i; |
| 3983 | printf (" Augmentation data: "); |
| 3984 | for (i = 0; i < augmentation_data_len; ++i) |
| 3985 | printf (" %02x", augmentation_data[i]); |
| 3986 | putchar ('\n'); |
| 3987 | } |
| 3988 | putchar ('\n'); |
| 3989 | } |
| 3990 | |
| 3991 | if (augmentation_data_len) |
| 3992 | { |
| 3993 | unsigned char *p, *q; |
| 3994 | p = (unsigned char *) fc->augmentation + 1; |
| 3995 | q = augmentation_data; |
| 3996 | |
| 3997 | while (1) |
| 3998 | { |
| 3999 | if (*p == 'L') |
| 4000 | q++; |
| 4001 | else if (*p == 'P') |
| 4002 | q += 1 + size_of_encoded_value (*q); |
| 4003 | else if (*p == 'R') |
| 4004 | fc->fde_encoding = *q++; |
| 4005 | else |
| 4006 | break; |
| 4007 | p++; |
| 4008 | } |
| 4009 | |
| 4010 | if (fc->fde_encoding) |
| 4011 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); |
| 4012 | } |
| 4013 | |
| 4014 | frame_need_space (fc, fc->ra); |
| 4015 | } |
| 4016 | else |
| 4017 | { |
| 4018 | unsigned char *look_for; |
| 4019 | static Frame_Chunk fde_fc; |
| 4020 | |
| 4021 | fc = & fde_fc; |
| 4022 | memset (fc, 0, sizeof (Frame_Chunk)); |
| 4023 | |
| 4024 | look_for = is_eh ? start - 4 - cie_id : section_start + cie_id; |
| 4025 | |
| 4026 | for (cie = chunks; cie ; cie = cie->next) |
| 4027 | if (cie->chunk_start == look_for) |
| 4028 | break; |
| 4029 | |
| 4030 | if (!cie) |
| 4031 | { |
| 4032 | warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n", |
| 4033 | cie_id, (unsigned long)(saved_start - section_start)); |
| 4034 | fc->ncols = 0; |
| 4035 | fc->col_type = xmalloc (sizeof (short int)); |
| 4036 | fc->col_offset = xmalloc (sizeof (int)); |
| 4037 | frame_need_space (fc, max_regs - 1); |
| 4038 | cie = fc; |
| 4039 | fc->augmentation = ""; |
| 4040 | fc->fde_encoding = 0; |
| 4041 | } |
| 4042 | else |
| 4043 | { |
| 4044 | fc->ncols = cie->ncols; |
| 4045 | fc->col_type = xcmalloc (fc->ncols, sizeof (short int)); |
| 4046 | fc->col_offset = xcmalloc (fc->ncols, sizeof (int)); |
| 4047 | memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int)); |
| 4048 | memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int)); |
| 4049 | fc->augmentation = cie->augmentation; |
| 4050 | fc->code_factor = cie->code_factor; |
| 4051 | fc->data_factor = cie->data_factor; |
| 4052 | fc->cfa_reg = cie->cfa_reg; |
| 4053 | fc->cfa_offset = cie->cfa_offset; |
| 4054 | fc->ra = cie->ra; |
| 4055 | frame_need_space (fc, max_regs - 1); |
| 4056 | fc->fde_encoding = cie->fde_encoding; |
| 4057 | } |
| 4058 | |
| 4059 | if (fc->fde_encoding) |
| 4060 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); |
| 4061 | |
| 4062 | fc->pc_begin = get_encoded_value (start, fc->fde_encoding); |
| 4063 | if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel) |
| 4064 | fc->pc_begin += section->address + (start - section_start); |
| 4065 | start += encoded_ptr_size; |
| 4066 | fc->pc_range = byte_get (start, encoded_ptr_size); |
| 4067 | start += encoded_ptr_size; |
| 4068 | |
| 4069 | if (cie->augmentation[0] == 'z') |
| 4070 | { |
| 4071 | augmentation_data_len = LEB (); |
| 4072 | augmentation_data = start; |
| 4073 | start += augmentation_data_len; |
| 4074 | } |
| 4075 | |
| 4076 | printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=%08lx..%08lx\n", |
| 4077 | (unsigned long)(saved_start - section_start), length, cie_id, |
| 4078 | (unsigned long)(cie->chunk_start - section_start), |
| 4079 | fc->pc_begin, fc->pc_begin + fc->pc_range); |
| 4080 | if (! do_debug_frames_interp && augmentation_data_len) |
| 4081 | { |
| 4082 | unsigned long i; |
| 4083 | |
| 4084 | printf (" Augmentation data: "); |
| 4085 | for (i = 0; i < augmentation_data_len; ++i) |
| 4086 | printf (" %02x", augmentation_data[i]); |
| 4087 | putchar ('\n'); |
| 4088 | putchar ('\n'); |
| 4089 | } |
| 4090 | } |
| 4091 | |
| 4092 | /* At this point, fc is the current chunk, cie (if any) is set, and |
| 4093 | we're about to interpret instructions for the chunk. */ |
| 4094 | /* ??? At present we need to do this always, since this sizes the |
| 4095 | fc->col_type and fc->col_offset arrays, which we write into always. |
| 4096 | We should probably split the interpreted and non-interpreted bits |
| 4097 | into two different routines, since there's so much that doesn't |
| 4098 | really overlap between them. */ |
| 4099 | if (1 || do_debug_frames_interp) |
| 4100 | { |
| 4101 | /* Start by making a pass over the chunk, allocating storage |
| 4102 | and taking note of what registers are used. */ |
| 4103 | unsigned char *tmp = start; |
| 4104 | |
| 4105 | while (start < block_end) |
| 4106 | { |
| 4107 | unsigned op, opa; |
| 4108 | unsigned long reg, tmp; |
| 4109 | |
| 4110 | op = *start++; |
| 4111 | opa = op & 0x3f; |
| 4112 | if (op & 0xc0) |
| 4113 | op &= 0xc0; |
| 4114 | |
| 4115 | /* Warning: if you add any more cases to this switch, be |
| 4116 | sure to add them to the corresponding switch below. */ |
| 4117 | switch (op) |
| 4118 | { |
| 4119 | case DW_CFA_advance_loc: |
| 4120 | break; |
| 4121 | case DW_CFA_offset: |
| 4122 | LEB (); |
| 4123 | if (frame_need_space (fc, opa) >= 0) |
| 4124 | fc->col_type[opa] = DW_CFA_undefined; |
| 4125 | break; |
| 4126 | case DW_CFA_restore: |
| 4127 | if (frame_need_space (fc, opa) >= 0) |
| 4128 | fc->col_type[opa] = DW_CFA_undefined; |
| 4129 | break; |
| 4130 | case DW_CFA_set_loc: |
| 4131 | start += encoded_ptr_size; |
| 4132 | break; |
| 4133 | case DW_CFA_advance_loc1: |
| 4134 | start += 1; |
| 4135 | break; |
| 4136 | case DW_CFA_advance_loc2: |
| 4137 | start += 2; |
| 4138 | break; |
| 4139 | case DW_CFA_advance_loc4: |
| 4140 | start += 4; |
| 4141 | break; |
| 4142 | case DW_CFA_offset_extended: |
| 4143 | case DW_CFA_val_offset: |
| 4144 | reg = LEB (); LEB (); |
| 4145 | if (frame_need_space (fc, reg) >= 0) |
| 4146 | fc->col_type[reg] = DW_CFA_undefined; |
| 4147 | break; |
| 4148 | case DW_CFA_restore_extended: |
| 4149 | reg = LEB (); |
| 4150 | frame_need_space (fc, reg); |
| 4151 | if (frame_need_space (fc, reg) >= 0) |
| 4152 | fc->col_type[reg] = DW_CFA_undefined; |
| 4153 | break; |
| 4154 | case DW_CFA_undefined: |
| 4155 | reg = LEB (); |
| 4156 | if (frame_need_space (fc, reg) >= 0) |
| 4157 | fc->col_type[reg] = DW_CFA_undefined; |
| 4158 | break; |
| 4159 | case DW_CFA_same_value: |
| 4160 | reg = LEB (); |
| 4161 | if (frame_need_space (fc, reg) >= 0) |
| 4162 | fc->col_type[reg] = DW_CFA_undefined; |
| 4163 | break; |
| 4164 | case DW_CFA_register: |
| 4165 | reg = LEB (); LEB (); |
| 4166 | if (frame_need_space (fc, reg) >= 0) |
| 4167 | fc->col_type[reg] = DW_CFA_undefined; |
| 4168 | break; |
| 4169 | case DW_CFA_def_cfa: |
| 4170 | LEB (); LEB (); |
| 4171 | break; |
| 4172 | case DW_CFA_def_cfa_register: |
| 4173 | LEB (); |
| 4174 | break; |
| 4175 | case DW_CFA_def_cfa_offset: |
| 4176 | LEB (); |
| 4177 | break; |
| 4178 | case DW_CFA_def_cfa_expression: |
| 4179 | tmp = LEB (); |
| 4180 | start += tmp; |
| 4181 | break; |
| 4182 | case DW_CFA_expression: |
| 4183 | case DW_CFA_val_expression: |
| 4184 | reg = LEB (); |
| 4185 | tmp = LEB (); |
| 4186 | start += tmp; |
| 4187 | if (frame_need_space (fc, reg) >= 0) |
| 4188 | fc->col_type[reg] = DW_CFA_undefined; |
| 4189 | break; |
| 4190 | case DW_CFA_offset_extended_sf: |
| 4191 | case DW_CFA_val_offset_sf: |
| 4192 | reg = LEB (); SLEB (); |
| 4193 | if (frame_need_space (fc, reg) >= 0) |
| 4194 | fc->col_type[reg] = DW_CFA_undefined; |
| 4195 | break; |
| 4196 | case DW_CFA_def_cfa_sf: |
| 4197 | LEB (); SLEB (); |
| 4198 | break; |
| 4199 | case DW_CFA_def_cfa_offset_sf: |
| 4200 | SLEB (); |
| 4201 | break; |
| 4202 | case DW_CFA_MIPS_advance_loc8: |
| 4203 | start += 8; |
| 4204 | break; |
| 4205 | case DW_CFA_GNU_args_size: |
| 4206 | LEB (); |
| 4207 | break; |
| 4208 | case DW_CFA_GNU_negative_offset_extended: |
| 4209 | reg = LEB (); LEB (); |
| 4210 | if (frame_need_space (fc, reg) >= 0) |
| 4211 | fc->col_type[reg] = DW_CFA_undefined; |
| 4212 | break; |
| 4213 | default: |
| 4214 | break; |
| 4215 | } |
| 4216 | } |
| 4217 | start = tmp; |
| 4218 | } |
| 4219 | |
| 4220 | /* Now we know what registers are used, make a second pass over |
| 4221 | the chunk, this time actually printing out the info. */ |
| 4222 | |
| 4223 | while (start < block_end) |
| 4224 | { |
| 4225 | unsigned op, opa; |
| 4226 | unsigned long ul, reg, roffs; |
| 4227 | long l, ofs; |
| 4228 | dwarf_vma vma; |
| 4229 | const char *reg_prefix = ""; |
| 4230 | |
| 4231 | op = *start++; |
| 4232 | opa = op & 0x3f; |
| 4233 | if (op & 0xc0) |
| 4234 | op &= 0xc0; |
| 4235 | |
| 4236 | /* Warning: if you add any more cases to this switch, be |
| 4237 | sure to add them to the corresponding switch above. */ |
| 4238 | switch (op) |
| 4239 | { |
| 4240 | case DW_CFA_advance_loc: |
| 4241 | if (do_debug_frames_interp) |
| 4242 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 4243 | else |
| 4244 | printf (" DW_CFA_advance_loc: %d to %08lx\n", |
| 4245 | opa * fc->code_factor, |
| 4246 | fc->pc_begin + opa * fc->code_factor); |
| 4247 | fc->pc_begin += opa * fc->code_factor; |
| 4248 | break; |
| 4249 | |
| 4250 | case DW_CFA_offset: |
| 4251 | roffs = LEB (); |
| 4252 | if (opa >= (unsigned int) fc->ncols) |
| 4253 | reg_prefix = bad_reg; |
| 4254 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4255 | printf (" DW_CFA_offset: %s%s at cfa%+ld\n", |
| 4256 | reg_prefix, regname (opa, 0), |
| 4257 | roffs * fc->data_factor); |
| 4258 | if (*reg_prefix == '\0') |
| 4259 | { |
| 4260 | fc->col_type[opa] = DW_CFA_offset; |
| 4261 | fc->col_offset[opa] = roffs * fc->data_factor; |
| 4262 | } |
| 4263 | break; |
| 4264 | |
| 4265 | case DW_CFA_restore: |
| 4266 | if (opa >= (unsigned int) cie->ncols |
| 4267 | || opa >= (unsigned int) fc->ncols) |
| 4268 | reg_prefix = bad_reg; |
| 4269 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4270 | printf (" DW_CFA_restore: %s%s\n", |
| 4271 | reg_prefix, regname (opa, 0)); |
| 4272 | if (*reg_prefix == '\0') |
| 4273 | { |
| 4274 | fc->col_type[opa] = cie->col_type[opa]; |
| 4275 | fc->col_offset[opa] = cie->col_offset[opa]; |
| 4276 | } |
| 4277 | break; |
| 4278 | |
| 4279 | case DW_CFA_set_loc: |
| 4280 | vma = get_encoded_value (start, fc->fde_encoding); |
| 4281 | if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel) |
| 4282 | vma += section->address + (start - section_start); |
| 4283 | start += encoded_ptr_size; |
| 4284 | if (do_debug_frames_interp) |
| 4285 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 4286 | else |
| 4287 | printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma); |
| 4288 | fc->pc_begin = vma; |
| 4289 | break; |
| 4290 | |
| 4291 | case DW_CFA_advance_loc1: |
| 4292 | ofs = byte_get (start, 1); start += 1; |
| 4293 | if (do_debug_frames_interp) |
| 4294 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 4295 | else |
| 4296 | printf (" DW_CFA_advance_loc1: %ld to %08lx\n", |
| 4297 | ofs * fc->code_factor, |
| 4298 | fc->pc_begin + ofs * fc->code_factor); |
| 4299 | fc->pc_begin += ofs * fc->code_factor; |
| 4300 | break; |
| 4301 | |
| 4302 | case DW_CFA_advance_loc2: |
| 4303 | ofs = byte_get (start, 2); start += 2; |
| 4304 | if (do_debug_frames_interp) |
| 4305 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 4306 | else |
| 4307 | printf (" DW_CFA_advance_loc2: %ld to %08lx\n", |
| 4308 | ofs * fc->code_factor, |
| 4309 | fc->pc_begin + ofs * fc->code_factor); |
| 4310 | fc->pc_begin += ofs * fc->code_factor; |
| 4311 | break; |
| 4312 | |
| 4313 | case DW_CFA_advance_loc4: |
| 4314 | ofs = byte_get (start, 4); start += 4; |
| 4315 | if (do_debug_frames_interp) |
| 4316 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 4317 | else |
| 4318 | printf (" DW_CFA_advance_loc4: %ld to %08lx\n", |
| 4319 | ofs * fc->code_factor, |
| 4320 | fc->pc_begin + ofs * fc->code_factor); |
| 4321 | fc->pc_begin += ofs * fc->code_factor; |
| 4322 | break; |
| 4323 | |
| 4324 | case DW_CFA_offset_extended: |
| 4325 | reg = LEB (); |
| 4326 | roffs = LEB (); |
| 4327 | if (reg >= (unsigned int) fc->ncols) |
| 4328 | reg_prefix = bad_reg; |
| 4329 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4330 | printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n", |
| 4331 | reg_prefix, regname (reg, 0), |
| 4332 | roffs * fc->data_factor); |
| 4333 | if (*reg_prefix == '\0') |
| 4334 | { |
| 4335 | fc->col_type[reg] = DW_CFA_offset; |
| 4336 | fc->col_offset[reg] = roffs * fc->data_factor; |
| 4337 | } |
| 4338 | break; |
| 4339 | |
| 4340 | case DW_CFA_val_offset: |
| 4341 | reg = LEB (); |
| 4342 | roffs = LEB (); |
| 4343 | if (reg >= (unsigned int) fc->ncols) |
| 4344 | reg_prefix = bad_reg; |
| 4345 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4346 | printf (" DW_CFA_val_offset: %s%s at cfa%+ld\n", |
| 4347 | reg_prefix, regname (reg, 0), |
| 4348 | roffs * fc->data_factor); |
| 4349 | if (*reg_prefix == '\0') |
| 4350 | { |
| 4351 | fc->col_type[reg] = DW_CFA_val_offset; |
| 4352 | fc->col_offset[reg] = roffs * fc->data_factor; |
| 4353 | } |
| 4354 | break; |
| 4355 | |
| 4356 | case DW_CFA_restore_extended: |
| 4357 | reg = LEB (); |
| 4358 | if (reg >= (unsigned int) cie->ncols |
| 4359 | || reg >= (unsigned int) fc->ncols) |
| 4360 | reg_prefix = bad_reg; |
| 4361 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4362 | printf (" DW_CFA_restore_extended: %s%s\n", |
| 4363 | reg_prefix, regname (reg, 0)); |
| 4364 | if (*reg_prefix == '\0') |
| 4365 | { |
| 4366 | fc->col_type[reg] = cie->col_type[reg]; |
| 4367 | fc->col_offset[reg] = cie->col_offset[reg]; |
| 4368 | } |
| 4369 | break; |
| 4370 | |
| 4371 | case DW_CFA_undefined: |
| 4372 | reg = LEB (); |
| 4373 | if (reg >= (unsigned int) fc->ncols) |
| 4374 | reg_prefix = bad_reg; |
| 4375 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4376 | printf (" DW_CFA_undefined: %s%s\n", |
| 4377 | reg_prefix, regname (reg, 0)); |
| 4378 | if (*reg_prefix == '\0') |
| 4379 | { |
| 4380 | fc->col_type[reg] = DW_CFA_undefined; |
| 4381 | fc->col_offset[reg] = 0; |
| 4382 | } |
| 4383 | break; |
| 4384 | |
| 4385 | case DW_CFA_same_value: |
| 4386 | reg = LEB (); |
| 4387 | if (reg >= (unsigned int) fc->ncols) |
| 4388 | reg_prefix = bad_reg; |
| 4389 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4390 | printf (" DW_CFA_same_value: %s%s\n", |
| 4391 | reg_prefix, regname (reg, 0)); |
| 4392 | if (*reg_prefix == '\0') |
| 4393 | { |
| 4394 | fc->col_type[reg] = DW_CFA_same_value; |
| 4395 | fc->col_offset[reg] = 0; |
| 4396 | } |
| 4397 | break; |
| 4398 | |
| 4399 | case DW_CFA_register: |
| 4400 | reg = LEB (); |
| 4401 | roffs = LEB (); |
| 4402 | if (reg >= (unsigned int) fc->ncols) |
| 4403 | reg_prefix = bad_reg; |
| 4404 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4405 | { |
| 4406 | printf (" DW_CFA_register: %s%s in ", |
| 4407 | reg_prefix, regname (reg, 0)); |
| 4408 | puts (regname (roffs, 0)); |
| 4409 | } |
| 4410 | if (*reg_prefix == '\0') |
| 4411 | { |
| 4412 | fc->col_type[reg] = DW_CFA_register; |
| 4413 | fc->col_offset[reg] = roffs; |
| 4414 | } |
| 4415 | break; |
| 4416 | |
| 4417 | case DW_CFA_remember_state: |
| 4418 | if (! do_debug_frames_interp) |
| 4419 | printf (" DW_CFA_remember_state\n"); |
| 4420 | rs = xmalloc (sizeof (Frame_Chunk)); |
| 4421 | rs->ncols = fc->ncols; |
| 4422 | rs->col_type = xcmalloc (rs->ncols, sizeof (short int)); |
| 4423 | rs->col_offset = xcmalloc (rs->ncols, sizeof (int)); |
| 4424 | memcpy (rs->col_type, fc->col_type, rs->ncols); |
| 4425 | memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int)); |
| 4426 | rs->next = remembered_state; |
| 4427 | remembered_state = rs; |
| 4428 | break; |
| 4429 | |
| 4430 | case DW_CFA_restore_state: |
| 4431 | if (! do_debug_frames_interp) |
| 4432 | printf (" DW_CFA_restore_state\n"); |
| 4433 | rs = remembered_state; |
| 4434 | if (rs) |
| 4435 | { |
| 4436 | remembered_state = rs->next; |
| 4437 | frame_need_space (fc, rs->ncols - 1); |
| 4438 | memcpy (fc->col_type, rs->col_type, rs->ncols); |
| 4439 | memcpy (fc->col_offset, rs->col_offset, |
| 4440 | rs->ncols * sizeof (int)); |
| 4441 | free (rs->col_type); |
| 4442 | free (rs->col_offset); |
| 4443 | free (rs); |
| 4444 | } |
| 4445 | else if (do_debug_frames_interp) |
| 4446 | printf ("Mismatched DW_CFA_restore_state\n"); |
| 4447 | break; |
| 4448 | |
| 4449 | case DW_CFA_def_cfa: |
| 4450 | fc->cfa_reg = LEB (); |
| 4451 | fc->cfa_offset = LEB (); |
| 4452 | fc->cfa_exp = 0; |
| 4453 | if (! do_debug_frames_interp) |
| 4454 | printf (" DW_CFA_def_cfa: %s ofs %d\n", |
| 4455 | regname (fc->cfa_reg, 0), fc->cfa_offset); |
| 4456 | break; |
| 4457 | |
| 4458 | case DW_CFA_def_cfa_register: |
| 4459 | fc->cfa_reg = LEB (); |
| 4460 | fc->cfa_exp = 0; |
| 4461 | if (! do_debug_frames_interp) |
| 4462 | printf (" DW_CFA_def_cfa_register: %s\n", |
| 4463 | regname (fc->cfa_reg, 0)); |
| 4464 | break; |
| 4465 | |
| 4466 | case DW_CFA_def_cfa_offset: |
| 4467 | fc->cfa_offset = LEB (); |
| 4468 | if (! do_debug_frames_interp) |
| 4469 | printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset); |
| 4470 | break; |
| 4471 | |
| 4472 | case DW_CFA_nop: |
| 4473 | if (! do_debug_frames_interp) |
| 4474 | printf (" DW_CFA_nop\n"); |
| 4475 | break; |
| 4476 | |
| 4477 | case DW_CFA_def_cfa_expression: |
| 4478 | ul = LEB (); |
| 4479 | if (! do_debug_frames_interp) |
| 4480 | { |
| 4481 | printf (" DW_CFA_def_cfa_expression ("); |
| 4482 | decode_location_expression (start, eh_addr_size, ul, 0, |
| 4483 | section); |
| 4484 | printf (")\n"); |
| 4485 | } |
| 4486 | fc->cfa_exp = 1; |
| 4487 | start += ul; |
| 4488 | break; |
| 4489 | |
| 4490 | case DW_CFA_expression: |
| 4491 | reg = LEB (); |
| 4492 | ul = LEB (); |
| 4493 | if (reg >= (unsigned int) fc->ncols) |
| 4494 | reg_prefix = bad_reg; |
| 4495 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4496 | { |
| 4497 | printf (" DW_CFA_expression: %s%s (", |
| 4498 | reg_prefix, regname (reg, 0)); |
| 4499 | decode_location_expression (start, eh_addr_size, |
| 4500 | ul, 0, section); |
| 4501 | printf (")\n"); |
| 4502 | } |
| 4503 | if (*reg_prefix == '\0') |
| 4504 | fc->col_type[reg] = DW_CFA_expression; |
| 4505 | start += ul; |
| 4506 | break; |
| 4507 | |
| 4508 | case DW_CFA_val_expression: |
| 4509 | reg = LEB (); |
| 4510 | ul = LEB (); |
| 4511 | if (reg >= (unsigned int) fc->ncols) |
| 4512 | reg_prefix = bad_reg; |
| 4513 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4514 | { |
| 4515 | printf (" DW_CFA_val_expression: %s%s (", |
| 4516 | reg_prefix, regname (reg, 0)); |
| 4517 | decode_location_expression (start, eh_addr_size, ul, 0, |
| 4518 | section); |
| 4519 | printf (")\n"); |
| 4520 | } |
| 4521 | if (*reg_prefix == '\0') |
| 4522 | fc->col_type[reg] = DW_CFA_val_expression; |
| 4523 | start += ul; |
| 4524 | break; |
| 4525 | |
| 4526 | case DW_CFA_offset_extended_sf: |
| 4527 | reg = LEB (); |
| 4528 | l = SLEB (); |
| 4529 | if (frame_need_space (fc, reg) < 0) |
| 4530 | reg_prefix = bad_reg; |
| 4531 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4532 | printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n", |
| 4533 | reg_prefix, regname (reg, 0), |
| 4534 | l * fc->data_factor); |
| 4535 | if (*reg_prefix == '\0') |
| 4536 | { |
| 4537 | fc->col_type[reg] = DW_CFA_offset; |
| 4538 | fc->col_offset[reg] = l * fc->data_factor; |
| 4539 | } |
| 4540 | break; |
| 4541 | |
| 4542 | case DW_CFA_val_offset_sf: |
| 4543 | reg = LEB (); |
| 4544 | l = SLEB (); |
| 4545 | if (frame_need_space (fc, reg) < 0) |
| 4546 | reg_prefix = bad_reg; |
| 4547 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4548 | printf (" DW_CFA_val_offset_sf: %s%s at cfa%+ld\n", |
| 4549 | reg_prefix, regname (reg, 0), |
| 4550 | l * fc->data_factor); |
| 4551 | if (*reg_prefix == '\0') |
| 4552 | { |
| 4553 | fc->col_type[reg] = DW_CFA_val_offset; |
| 4554 | fc->col_offset[reg] = l * fc->data_factor; |
| 4555 | } |
| 4556 | break; |
| 4557 | |
| 4558 | case DW_CFA_def_cfa_sf: |
| 4559 | fc->cfa_reg = LEB (); |
| 4560 | fc->cfa_offset = SLEB (); |
| 4561 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; |
| 4562 | fc->cfa_exp = 0; |
| 4563 | if (! do_debug_frames_interp) |
| 4564 | printf (" DW_CFA_def_cfa_sf: %s ofs %d\n", |
| 4565 | regname (fc->cfa_reg, 0), fc->cfa_offset); |
| 4566 | break; |
| 4567 | |
| 4568 | case DW_CFA_def_cfa_offset_sf: |
| 4569 | fc->cfa_offset = SLEB (); |
| 4570 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; |
| 4571 | if (! do_debug_frames_interp) |
| 4572 | printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset); |
| 4573 | break; |
| 4574 | |
| 4575 | case DW_CFA_MIPS_advance_loc8: |
| 4576 | ofs = byte_get (start, 8); start += 8; |
| 4577 | if (do_debug_frames_interp) |
| 4578 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 4579 | else |
| 4580 | printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n", |
| 4581 | ofs * fc->code_factor, |
| 4582 | fc->pc_begin + ofs * fc->code_factor); |
| 4583 | fc->pc_begin += ofs * fc->code_factor; |
| 4584 | break; |
| 4585 | |
| 4586 | case DW_CFA_GNU_window_save: |
| 4587 | if (! do_debug_frames_interp) |
| 4588 | printf (" DW_CFA_GNU_window_save\n"); |
| 4589 | break; |
| 4590 | |
| 4591 | case DW_CFA_GNU_args_size: |
| 4592 | ul = LEB (); |
| 4593 | if (! do_debug_frames_interp) |
| 4594 | printf (" DW_CFA_GNU_args_size: %ld\n", ul); |
| 4595 | break; |
| 4596 | |
| 4597 | case DW_CFA_GNU_negative_offset_extended: |
| 4598 | reg = LEB (); |
| 4599 | l = - LEB (); |
| 4600 | if (frame_need_space (fc, reg) < 0) |
| 4601 | reg_prefix = bad_reg; |
| 4602 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 4603 | printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n", |
| 4604 | reg_prefix, regname (reg, 0), |
| 4605 | l * fc->data_factor); |
| 4606 | if (*reg_prefix == '\0') |
| 4607 | { |
| 4608 | fc->col_type[reg] = DW_CFA_offset; |
| 4609 | fc->col_offset[reg] = l * fc->data_factor; |
| 4610 | } |
| 4611 | break; |
| 4612 | |
| 4613 | default: |
| 4614 | if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user) |
| 4615 | printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op); |
| 4616 | else |
| 4617 | warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op); |
| 4618 | start = block_end; |
| 4619 | } |
| 4620 | } |
| 4621 | |
| 4622 | if (do_debug_frames_interp) |
| 4623 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 4624 | |
| 4625 | start = block_end; |
| 4626 | } |
| 4627 | |
| 4628 | printf ("\n"); |
| 4629 | |
| 4630 | return 1; |
| 4631 | } |
| 4632 | |
| 4633 | #undef GET |
| 4634 | #undef LEB |
| 4635 | #undef SLEB |
| 4636 | |
| 4637 | static int |
| 4638 | display_debug_not_supported (struct dwarf_section *section, |
| 4639 | void *file ATTRIBUTE_UNUSED) |
| 4640 | { |
| 4641 | printf (_("Displaying the debug contents of section %s is not yet supported.\n"), |
| 4642 | section->name); |
| 4643 | |
| 4644 | return 1; |
| 4645 | } |
| 4646 | |
| 4647 | void * |
| 4648 | cmalloc (size_t nmemb, size_t size) |
| 4649 | { |
| 4650 | /* Check for overflow. */ |
| 4651 | if (nmemb >= ~(size_t) 0 / size) |
| 4652 | return NULL; |
| 4653 | else |
| 4654 | return malloc (nmemb * size); |
| 4655 | } |
| 4656 | |
| 4657 | void * |
| 4658 | xcmalloc (size_t nmemb, size_t size) |
| 4659 | { |
| 4660 | /* Check for overflow. */ |
| 4661 | if (nmemb >= ~(size_t) 0 / size) |
| 4662 | return NULL; |
| 4663 | else |
| 4664 | return xmalloc (nmemb * size); |
| 4665 | } |
| 4666 | |
| 4667 | void * |
| 4668 | xcrealloc (void *ptr, size_t nmemb, size_t size) |
| 4669 | { |
| 4670 | /* Check for overflow. */ |
| 4671 | if (nmemb >= ~(size_t) 0 / size) |
| 4672 | return NULL; |
| 4673 | else |
| 4674 | return xrealloc (ptr, nmemb * size); |
| 4675 | } |
| 4676 | |
| 4677 | void |
| 4678 | error (const char *message, ...) |
| 4679 | { |
| 4680 | va_list args; |
| 4681 | |
| 4682 | va_start (args, message); |
| 4683 | fprintf (stderr, _("%s: Error: "), program_name); |
| 4684 | vfprintf (stderr, message, args); |
| 4685 | va_end (args); |
| 4686 | } |
| 4687 | |
| 4688 | void |
| 4689 | warn (const char *message, ...) |
| 4690 | { |
| 4691 | va_list args; |
| 4692 | |
| 4693 | va_start (args, message); |
| 4694 | fprintf (stderr, _("%s: Warning: "), program_name); |
| 4695 | vfprintf (stderr, message, args); |
| 4696 | va_end (args); |
| 4697 | } |
| 4698 | |
| 4699 | void |
| 4700 | free_debug_memory (void) |
| 4701 | { |
| 4702 | enum dwarf_section_display_enum i; |
| 4703 | |
| 4704 | free_abbrevs (); |
| 4705 | |
| 4706 | for (i = 0; i < max; i++) |
| 4707 | free_debug_section (i); |
| 4708 | |
| 4709 | if (debug_information != NULL) |
| 4710 | { |
| 4711 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE) |
| 4712 | { |
| 4713 | for (i = 0; i < num_debug_info_entries; i++) |
| 4714 | { |
| 4715 | if (!debug_information [i].max_loc_offsets) |
| 4716 | { |
| 4717 | free (debug_information [i].loc_offsets); |
| 4718 | free (debug_information [i].have_frame_base); |
| 4719 | } |
| 4720 | if (!debug_information [i].max_range_lists) |
| 4721 | free (debug_information [i].range_lists); |
| 4722 | } |
| 4723 | } |
| 4724 | |
| 4725 | free (debug_information); |
| 4726 | debug_information = NULL; |
| 4727 | num_debug_info_entries = 0; |
| 4728 | } |
| 4729 | } |
| 4730 | |
| 4731 | void |
| 4732 | dwarf_select_sections_by_names (const char *names) |
| 4733 | { |
| 4734 | typedef struct |
| 4735 | { |
| 4736 | const char * option; |
| 4737 | int * variable; |
| 4738 | int val; |
| 4739 | } |
| 4740 | debug_dump_long_opts; |
| 4741 | |
| 4742 | static const debug_dump_long_opts opts_table [] = |
| 4743 | { |
| 4744 | /* Please keep this table alpha- sorted. */ |
| 4745 | { "Ranges", & do_debug_ranges, 1 }, |
| 4746 | { "abbrev", & do_debug_abbrevs, 1 }, |
| 4747 | { "aranges", & do_debug_aranges, 1 }, |
| 4748 | { "frames", & do_debug_frames, 1 }, |
| 4749 | { "frames-interp", & do_debug_frames_interp, 1 }, |
| 4750 | { "info", & do_debug_info, 1 }, |
| 4751 | { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */ |
| 4752 | { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, |
| 4753 | { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED }, |
| 4754 | { "loc", & do_debug_loc, 1 }, |
| 4755 | { "macro", & do_debug_macinfo, 1 }, |
| 4756 | { "pubnames", & do_debug_pubnames, 1 }, |
| 4757 | /* This entry is for compatability |
| 4758 | with earlier versions of readelf. */ |
| 4759 | { "ranges", & do_debug_aranges, 1 }, |
| 4760 | { "str", & do_debug_str, 1 }, |
| 4761 | { NULL, NULL, 0 } |
| 4762 | }; |
| 4763 | |
| 4764 | const char *p; |
| 4765 | |
| 4766 | p = names; |
| 4767 | while (*p) |
| 4768 | { |
| 4769 | const debug_dump_long_opts * entry; |
| 4770 | |
| 4771 | for (entry = opts_table; entry->option; entry++) |
| 4772 | { |
| 4773 | size_t len = strlen (entry->option); |
| 4774 | |
| 4775 | if (strncmp (p, entry->option, len) == 0 |
| 4776 | && (p[len] == ',' || p[len] == '\0')) |
| 4777 | { |
| 4778 | * entry->variable |= entry->val; |
| 4779 | |
| 4780 | /* The --debug-dump=frames-interp option also |
| 4781 | enables the --debug-dump=frames option. */ |
| 4782 | if (do_debug_frames_interp) |
| 4783 | do_debug_frames = 1; |
| 4784 | |
| 4785 | p += len; |
| 4786 | break; |
| 4787 | } |
| 4788 | } |
| 4789 | |
| 4790 | if (entry->option == NULL) |
| 4791 | { |
| 4792 | warn (_("Unrecognized debug option '%s'\n"), p); |
| 4793 | p = strchr (p, ','); |
| 4794 | if (p == NULL) |
| 4795 | break; |
| 4796 | } |
| 4797 | |
| 4798 | if (*p == ',') |
| 4799 | p++; |
| 4800 | } |
| 4801 | } |
| 4802 | |
| 4803 | void |
| 4804 | dwarf_select_sections_by_letters (const char *letters) |
| 4805 | { |
| 4806 | unsigned int index = 0; |
| 4807 | |
| 4808 | while (letters[index]) |
| 4809 | switch (letters[index++]) |
| 4810 | { |
| 4811 | case 'i': |
| 4812 | do_debug_info = 1; |
| 4813 | break; |
| 4814 | |
| 4815 | case 'a': |
| 4816 | do_debug_abbrevs = 1; |
| 4817 | break; |
| 4818 | |
| 4819 | case 'l': |
| 4820 | do_debug_lines |= FLAG_DEBUG_LINES_RAW; |
| 4821 | break; |
| 4822 | |
| 4823 | case 'L': |
| 4824 | do_debug_lines |= FLAG_DEBUG_LINES_DECODED; |
| 4825 | break; |
| 4826 | |
| 4827 | case 'p': |
| 4828 | do_debug_pubnames = 1; |
| 4829 | break; |
| 4830 | |
| 4831 | case 'r': |
| 4832 | do_debug_aranges = 1; |
| 4833 | break; |
| 4834 | |
| 4835 | case 'R': |
| 4836 | do_debug_ranges = 1; |
| 4837 | break; |
| 4838 | |
| 4839 | case 'F': |
| 4840 | do_debug_frames_interp = 1; |
| 4841 | case 'f': |
| 4842 | do_debug_frames = 1; |
| 4843 | break; |
| 4844 | |
| 4845 | case 'm': |
| 4846 | do_debug_macinfo = 1; |
| 4847 | break; |
| 4848 | |
| 4849 | case 's': |
| 4850 | do_debug_str = 1; |
| 4851 | break; |
| 4852 | |
| 4853 | case 'o': |
| 4854 | do_debug_loc = 1; |
| 4855 | break; |
| 4856 | |
| 4857 | default: |
| 4858 | warn (_("Unrecognized debug option '%s'\n"), optarg); |
| 4859 | break; |
| 4860 | } |
| 4861 | } |
| 4862 | |
| 4863 | void |
| 4864 | dwarf_select_sections_all (void) |
| 4865 | { |
| 4866 | do_debug_info = 1; |
| 4867 | do_debug_abbrevs = 1; |
| 4868 | do_debug_lines = FLAG_DEBUG_LINES_RAW; |
| 4869 | do_debug_pubnames = 1; |
| 4870 | do_debug_aranges = 1; |
| 4871 | do_debug_ranges = 1; |
| 4872 | do_debug_frames = 1; |
| 4873 | do_debug_macinfo = 1; |
| 4874 | do_debug_str = 1; |
| 4875 | do_debug_loc = 1; |
| 4876 | } |
| 4877 | |
| 4878 | struct dwarf_section_display debug_displays[] = |
| 4879 | { |
| 4880 | { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0 }, |
| 4881 | display_debug_abbrev, &do_debug_abbrevs, 0 }, |
| 4882 | { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0 }, |
| 4883 | display_debug_aranges, &do_debug_aranges, 1 }, |
| 4884 | { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0 }, |
| 4885 | display_debug_frames, &do_debug_frames, 1 }, |
| 4886 | { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0 }, |
| 4887 | display_debug_info, &do_debug_info, 1 }, |
| 4888 | { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0 }, |
| 4889 | display_debug_lines, &do_debug_lines, 1 }, |
| 4890 | { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0 }, |
| 4891 | display_debug_pubnames, &do_debug_pubnames, 0 }, |
| 4892 | { { ".eh_frame", "", NULL, NULL, 0, 0 }, |
| 4893 | display_debug_frames, &do_debug_frames, 1 }, |
| 4894 | { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0 }, |
| 4895 | display_debug_macinfo, &do_debug_macinfo, 0 }, |
| 4896 | { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0 }, |
| 4897 | display_debug_str, &do_debug_str, 0 }, |
| 4898 | { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0 }, |
| 4899 | display_debug_loc, &do_debug_loc, 1 }, |
| 4900 | { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0 }, |
| 4901 | display_debug_pubnames, &do_debug_pubnames, 0 }, |
| 4902 | { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0 }, |
| 4903 | display_debug_ranges, &do_debug_ranges, 1 }, |
| 4904 | { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0 }, |
| 4905 | display_debug_not_supported, NULL, 0 }, |
| 4906 | { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0 }, |
| 4907 | display_debug_not_supported, NULL, 0 }, |
| 4908 | { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0 }, |
| 4909 | display_debug_not_supported, NULL, 0 }, |
| 4910 | { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0 }, |
| 4911 | display_debug_not_supported, NULL, 0 } |
| 4912 | }; |