| 1 | /* dwarf.c -- display DWARF contents of a BFD binary file |
| 2 | Copyright 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
| 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 "bfd_stdint.h" |
| 26 | #include "bucomm.h" |
| 27 | #include "elfcomm.h" |
| 28 | #include "elf/common.h" |
| 29 | #include "dwarf2.h" |
| 30 | #include "dwarf.h" |
| 31 | #include "gdb/gdb-index.h" |
| 32 | |
| 33 | static const char *regname (unsigned int regno, int row); |
| 34 | |
| 35 | static int have_frame_base; |
| 36 | static int need_base_address; |
| 37 | |
| 38 | static unsigned int last_pointer_size = 0; |
| 39 | static int warned_about_missing_comp_units = FALSE; |
| 40 | |
| 41 | static unsigned int num_debug_info_entries = 0; |
| 42 | static debug_info *debug_information = NULL; |
| 43 | /* Special value for num_debug_info_entries to indicate |
| 44 | that the .debug_info section could not be loaded/parsed. */ |
| 45 | #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1 |
| 46 | |
| 47 | int eh_addr_size; |
| 48 | |
| 49 | int do_debug_info; |
| 50 | int do_debug_abbrevs; |
| 51 | int do_debug_lines; |
| 52 | int do_debug_pubnames; |
| 53 | int do_debug_pubtypes; |
| 54 | int do_debug_aranges; |
| 55 | int do_debug_ranges; |
| 56 | int do_debug_frames; |
| 57 | int do_debug_frames_interp; |
| 58 | int do_debug_macinfo; |
| 59 | int do_debug_str; |
| 60 | int do_debug_loc; |
| 61 | int do_gdb_index; |
| 62 | int do_trace_info; |
| 63 | int do_trace_abbrevs; |
| 64 | int do_trace_aranges; |
| 65 | int do_debug_addr; |
| 66 | int do_debug_cu_index; |
| 67 | int do_wide; |
| 68 | |
| 69 | int dwarf_cutoff_level = -1; |
| 70 | unsigned long dwarf_start_die; |
| 71 | |
| 72 | int dwarf_check = 0; |
| 73 | |
| 74 | /* Values for do_debug_lines. */ |
| 75 | #define FLAG_DEBUG_LINES_RAW 1 |
| 76 | #define FLAG_DEBUG_LINES_DECODED 2 |
| 77 | |
| 78 | static int |
| 79 | size_of_encoded_value (int encoding) |
| 80 | { |
| 81 | switch (encoding & 0x7) |
| 82 | { |
| 83 | default: /* ??? */ |
| 84 | case 0: return eh_addr_size; |
| 85 | case 2: return 2; |
| 86 | case 3: return 4; |
| 87 | case 4: return 8; |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | static dwarf_vma |
| 92 | get_encoded_value (unsigned char *data, |
| 93 | int encoding, |
| 94 | struct dwarf_section *section) |
| 95 | { |
| 96 | int size = size_of_encoded_value (encoding); |
| 97 | dwarf_vma val; |
| 98 | |
| 99 | if (encoding & DW_EH_PE_signed) |
| 100 | val = byte_get_signed (data, size); |
| 101 | else |
| 102 | val = byte_get (data, size); |
| 103 | |
| 104 | if ((encoding & 0x70) == DW_EH_PE_pcrel) |
| 105 | val += section->address + (data - section->start); |
| 106 | return val; |
| 107 | } |
| 108 | |
| 109 | /* Print a dwarf_vma value (typically an address, offset or length) in |
| 110 | hexadecimal format, followed by a space. The length of the value (and |
| 111 | hence the precision displayed) is determined by the byte_size parameter. */ |
| 112 | |
| 113 | static void |
| 114 | print_dwarf_vma (dwarf_vma val, unsigned byte_size) |
| 115 | { |
| 116 | static char buff[18]; |
| 117 | int offset = 0; |
| 118 | |
| 119 | /* Printf does not have a way of specifiying a maximum field width for an |
| 120 | integer value, so we print the full value into a buffer and then select |
| 121 | the precision we need. */ |
| 122 | #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2) |
| 123 | #ifndef __MINGW32__ |
| 124 | snprintf (buff, sizeof (buff), "%16.16llx ", val); |
| 125 | #else |
| 126 | snprintf (buff, sizeof (buff), "%016I64x ", val); |
| 127 | #endif |
| 128 | #else |
| 129 | snprintf (buff, sizeof (buff), "%16.16lx ", val); |
| 130 | #endif |
| 131 | |
| 132 | if (byte_size != 0) |
| 133 | { |
| 134 | if (byte_size > 0 && byte_size <= 8) |
| 135 | offset = 16 - 2 * byte_size; |
| 136 | else |
| 137 | error (_("Wrong size in print_dwarf_vma")); |
| 138 | } |
| 139 | |
| 140 | fputs (buff + offset, stdout); |
| 141 | } |
| 142 | |
| 143 | #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2) |
| 144 | #ifndef __MINGW32__ |
| 145 | #define DWARF_VMA_FMT "ll" |
| 146 | #else |
| 147 | #define DWARF_VMA_FMT "I64" |
| 148 | #endif |
| 149 | #else |
| 150 | #define DWARF_VMA_FMT "l" |
| 151 | #endif |
| 152 | |
| 153 | static const char * |
| 154 | dwarf_vmatoa (const char *fmtch, dwarf_vma value) |
| 155 | { |
| 156 | /* As dwarf_vmatoa is used more then once in a printf call |
| 157 | for output, we are cycling through an fixed array of pointers |
| 158 | for return address. */ |
| 159 | static int buf_pos = 0; |
| 160 | static struct dwarf_vmatoa_buf |
| 161 | { |
| 162 | char place[64]; |
| 163 | } buf[16]; |
| 164 | char fmt[32]; |
| 165 | char *ret; |
| 166 | |
| 167 | sprintf (fmt, "%%%s%s", DWARF_VMA_FMT, fmtch); |
| 168 | |
| 169 | ret = buf[buf_pos++].place; |
| 170 | buf_pos %= ARRAY_SIZE (buf); |
| 171 | |
| 172 | snprintf (ret, sizeof (buf[0].place), fmt, value); |
| 173 | |
| 174 | return ret; |
| 175 | } |
| 176 | |
| 177 | /* Format a 64-bit value, given as two 32-bit values, in hex. |
| 178 | For reentrancy, this uses a buffer provided by the caller. */ |
| 179 | |
| 180 | static const char * |
| 181 | dwarf_vmatoa64 (dwarf_vma hvalue, dwarf_vma lvalue, char *buf, |
| 182 | unsigned int buf_len) |
| 183 | { |
| 184 | int len = 0; |
| 185 | |
| 186 | if (hvalue == 0) |
| 187 | snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", lvalue); |
| 188 | else |
| 189 | { |
| 190 | len = snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", hvalue); |
| 191 | snprintf (buf + len, buf_len - len, |
| 192 | "%08" DWARF_VMA_FMT "x", lvalue); |
| 193 | } |
| 194 | |
| 195 | return buf; |
| 196 | } |
| 197 | |
| 198 | dwarf_vma |
| 199 | read_leb128 (unsigned char *data, unsigned int *length_return, int sign) |
| 200 | { |
| 201 | dwarf_vma result = 0; |
| 202 | unsigned int num_read = 0; |
| 203 | unsigned int shift = 0; |
| 204 | unsigned char byte; |
| 205 | |
| 206 | do |
| 207 | { |
| 208 | byte = *data++; |
| 209 | num_read++; |
| 210 | |
| 211 | result |= ((dwarf_vma) (byte & 0x7f)) << shift; |
| 212 | |
| 213 | shift += 7; |
| 214 | |
| 215 | } |
| 216 | while (byte & 0x80); |
| 217 | |
| 218 | if (length_return != NULL) |
| 219 | *length_return = num_read; |
| 220 | |
| 221 | if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40)) |
| 222 | result |= -1L << shift; |
| 223 | |
| 224 | return result; |
| 225 | } |
| 226 | |
| 227 | /* Create a signed version to avoid painful typecasts. */ |
| 228 | static dwarf_signed_vma |
| 229 | read_sleb128 (unsigned char *data, unsigned int *length_return) |
| 230 | { |
| 231 | return (dwarf_signed_vma) read_leb128 (data, length_return, 1); |
| 232 | } |
| 233 | |
| 234 | typedef struct State_Machine_Registers |
| 235 | { |
| 236 | dwarf_vma address; |
| 237 | unsigned int file; |
| 238 | unsigned int line; |
| 239 | unsigned int column; |
| 240 | int is_stmt; |
| 241 | int basic_block; |
| 242 | unsigned char op_index; |
| 243 | unsigned char end_sequence; |
| 244 | /* This variable hold the number of the last entry seen |
| 245 | in the File Table. */ |
| 246 | unsigned int last_file_entry; |
| 247 | } SMR; |
| 248 | |
| 249 | static SMR state_machine_regs; |
| 250 | |
| 251 | static void |
| 252 | reset_state_machine (int is_stmt) |
| 253 | { |
| 254 | state_machine_regs.address = 0; |
| 255 | state_machine_regs.op_index = 0; |
| 256 | state_machine_regs.file = 1; |
| 257 | state_machine_regs.line = 1; |
| 258 | state_machine_regs.column = 0; |
| 259 | state_machine_regs.is_stmt = is_stmt; |
| 260 | state_machine_regs.basic_block = 0; |
| 261 | state_machine_regs.end_sequence = 0; |
| 262 | state_machine_regs.last_file_entry = 0; |
| 263 | } |
| 264 | |
| 265 | /* Handled an extend line op. |
| 266 | Returns the number of bytes read. */ |
| 267 | |
| 268 | static int |
| 269 | process_extended_line_op (unsigned char *data, int is_stmt) |
| 270 | { |
| 271 | unsigned char op_code; |
| 272 | unsigned int bytes_read; |
| 273 | unsigned int len; |
| 274 | unsigned char *name; |
| 275 | dwarf_vma adr; |
| 276 | unsigned char *orig_data = data; |
| 277 | |
| 278 | len = read_leb128 (data, & bytes_read, 0); |
| 279 | data += bytes_read; |
| 280 | |
| 281 | if (len == 0) |
| 282 | { |
| 283 | warn (_("badly formed extended line op encountered!\n")); |
| 284 | return bytes_read; |
| 285 | } |
| 286 | |
| 287 | len += bytes_read; |
| 288 | op_code = *data++; |
| 289 | |
| 290 | printf (_(" Extended opcode %d: "), op_code); |
| 291 | |
| 292 | switch (op_code) |
| 293 | { |
| 294 | case DW_LNE_end_sequence: |
| 295 | printf (_("End of Sequence\n\n")); |
| 296 | reset_state_machine (is_stmt); |
| 297 | break; |
| 298 | |
| 299 | case DW_LNE_set_address: |
| 300 | adr = byte_get (data, len - bytes_read - 1); |
| 301 | printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", adr)); |
| 302 | state_machine_regs.address = adr; |
| 303 | state_machine_regs.op_index = 0; |
| 304 | break; |
| 305 | |
| 306 | case DW_LNE_define_file: |
| 307 | printf (_("define new File Table entry\n")); |
| 308 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); |
| 309 | |
| 310 | printf (" %d\t", ++state_machine_regs.last_file_entry); |
| 311 | name = data; |
| 312 | data += strlen ((char *) data) + 1; |
| 313 | printf ("%s\t", dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0))); |
| 314 | data += bytes_read; |
| 315 | printf ("%s\t", dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0))); |
| 316 | data += bytes_read; |
| 317 | printf ("%s\t", dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0))); |
| 318 | data += bytes_read; |
| 319 | printf ("%s", name); |
| 320 | if ((unsigned int) (data - orig_data) != len) |
| 321 | printf (_(" [Bad opcode length]")); |
| 322 | printf ("\n\n"); |
| 323 | break; |
| 324 | |
| 325 | case DW_LNE_set_discriminator: |
| 326 | printf (_("set Discriminator to %s\n"), |
| 327 | dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0))); |
| 328 | break; |
| 329 | |
| 330 | /* HP extensions. */ |
| 331 | case DW_LNE_HP_negate_is_UV_update: |
| 332 | printf ("DW_LNE_HP_negate_is_UV_update\n"); |
| 333 | break; |
| 334 | case DW_LNE_HP_push_context: |
| 335 | printf ("DW_LNE_HP_push_context\n"); |
| 336 | break; |
| 337 | case DW_LNE_HP_pop_context: |
| 338 | printf ("DW_LNE_HP_pop_context\n"); |
| 339 | break; |
| 340 | case DW_LNE_HP_set_file_line_column: |
| 341 | printf ("DW_LNE_HP_set_file_line_column\n"); |
| 342 | break; |
| 343 | case DW_LNE_HP_set_routine_name: |
| 344 | printf ("DW_LNE_HP_set_routine_name\n"); |
| 345 | break; |
| 346 | case DW_LNE_HP_set_sequence: |
| 347 | printf ("DW_LNE_HP_set_sequence\n"); |
| 348 | break; |
| 349 | case DW_LNE_HP_negate_post_semantics: |
| 350 | printf ("DW_LNE_HP_negate_post_semantics\n"); |
| 351 | break; |
| 352 | case DW_LNE_HP_negate_function_exit: |
| 353 | printf ("DW_LNE_HP_negate_function_exit\n"); |
| 354 | break; |
| 355 | case DW_LNE_HP_negate_front_end_logical: |
| 356 | printf ("DW_LNE_HP_negate_front_end_logical\n"); |
| 357 | break; |
| 358 | case DW_LNE_HP_define_proc: |
| 359 | printf ("DW_LNE_HP_define_proc\n"); |
| 360 | break; |
| 361 | case DW_LNE_HP_source_file_correlation: |
| 362 | { |
| 363 | unsigned char *edata = data + len - bytes_read - 1; |
| 364 | |
| 365 | printf ("DW_LNE_HP_source_file_correlation\n"); |
| 366 | |
| 367 | while (data < edata) |
| 368 | { |
| 369 | unsigned int opc; |
| 370 | |
| 371 | opc = read_leb128 (data, & bytes_read, 0); |
| 372 | data += bytes_read; |
| 373 | |
| 374 | switch (opc) |
| 375 | { |
| 376 | case DW_LNE_HP_SFC_formfeed: |
| 377 | printf (" DW_LNE_HP_SFC_formfeed\n"); |
| 378 | break; |
| 379 | case DW_LNE_HP_SFC_set_listing_line: |
| 380 | printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n", |
| 381 | dwarf_vmatoa ("u", |
| 382 | read_leb128 (data, & bytes_read, 0))); |
| 383 | data += bytes_read; |
| 384 | break; |
| 385 | case DW_LNE_HP_SFC_associate: |
| 386 | printf (" DW_LNE_HP_SFC_associate "); |
| 387 | printf ("(%s", |
| 388 | dwarf_vmatoa ("u", |
| 389 | read_leb128 (data, & bytes_read, 0))); |
| 390 | data += bytes_read; |
| 391 | printf (",%s", |
| 392 | dwarf_vmatoa ("u", |
| 393 | read_leb128 (data, & bytes_read, 0))); |
| 394 | data += bytes_read; |
| 395 | printf (",%s)\n", |
| 396 | dwarf_vmatoa ("u", |
| 397 | read_leb128 (data, & bytes_read, 0))); |
| 398 | data += bytes_read; |
| 399 | break; |
| 400 | default: |
| 401 | printf (_(" UNKNOWN DW_LNE_HP_SFC opcode (%u)\n"), opc); |
| 402 | data = edata; |
| 403 | break; |
| 404 | } |
| 405 | } |
| 406 | } |
| 407 | break; |
| 408 | |
| 409 | default: |
| 410 | { |
| 411 | unsigned int rlen = len - bytes_read - 1; |
| 412 | |
| 413 | if (op_code >= DW_LNE_lo_user |
| 414 | /* The test against DW_LNW_hi_user is redundant due to |
| 415 | the limited range of the unsigned char data type used |
| 416 | for op_code. */ |
| 417 | /*&& op_code <= DW_LNE_hi_user*/) |
| 418 | printf (_("user defined: ")); |
| 419 | else |
| 420 | printf (_("UNKNOWN: ")); |
| 421 | printf (_("length %d ["), rlen); |
| 422 | for (; rlen; rlen--) |
| 423 | printf (" %02x", *data++); |
| 424 | printf ("]\n"); |
| 425 | } |
| 426 | break; |
| 427 | } |
| 428 | |
| 429 | return len; |
| 430 | } |
| 431 | |
| 432 | static const char * |
| 433 | fetch_indirect_string (dwarf_vma offset) |
| 434 | { |
| 435 | struct dwarf_section *section = &debug_displays [str].section; |
| 436 | |
| 437 | if (section->start == NULL) |
| 438 | return _("<no .debug_str section>"); |
| 439 | |
| 440 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 441 | offset -= section->address; |
| 442 | if (offset > section->size) |
| 443 | { |
| 444 | warn (_("DW_FORM_strp offset too big: %s\n"), |
| 445 | dwarf_vmatoa ("x", offset)); |
| 446 | return _("<offset is too big>"); |
| 447 | } |
| 448 | |
| 449 | return (const char *) section->start + offset; |
| 450 | } |
| 451 | |
| 452 | static const char * |
| 453 | fetch_indexed_string (dwarf_vma idx, dwarf_vma offset_size, int dwo) |
| 454 | { |
| 455 | enum dwarf_section_display_enum str_sec_idx = dwo ? str_dwo : str; |
| 456 | enum dwarf_section_display_enum idx_sec_idx = dwo ? str_index_dwo : str_index; |
| 457 | struct dwarf_section *index_section = &debug_displays [idx_sec_idx].section; |
| 458 | struct dwarf_section *str_section = &debug_displays [str_sec_idx].section; |
| 459 | dwarf_vma index_offset = idx * offset_size; |
| 460 | dwarf_vma str_offset; |
| 461 | |
| 462 | if (index_section->start == NULL) |
| 463 | return (dwo ? _("<no .debug_str_offsets.dwo section>") |
| 464 | : _("<no .debug_str_offsets section>")); |
| 465 | |
| 466 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 467 | index_offset -= index_section->address; |
| 468 | if (index_offset > index_section->size) |
| 469 | { |
| 470 | warn (_("DW_FORM_GNU_str_index offset too big: %s\n"), |
| 471 | dwarf_vmatoa ("x", index_offset)); |
| 472 | return _("<index offset is too big>"); |
| 473 | } |
| 474 | |
| 475 | if (str_section->start == NULL) |
| 476 | return (dwo ? _("<no .debug_str.dwo section>") |
| 477 | : _("<no .debug_str section>")); |
| 478 | |
| 479 | str_offset = byte_get (index_section->start + index_offset, offset_size); |
| 480 | str_offset -= str_section->address; |
| 481 | if (str_offset > str_section->size) |
| 482 | { |
| 483 | warn (_("DW_FORM_GNU_str_index indirect offset too big: %s\n"), |
| 484 | dwarf_vmatoa ("x", str_offset)); |
| 485 | return _("<indirect index offset is too big>"); |
| 486 | } |
| 487 | |
| 488 | return (const char *) str_section->start + str_offset; |
| 489 | } |
| 490 | |
| 491 | static const char * |
| 492 | fetch_indexed_value (dwarf_vma offset, dwarf_vma bytes) |
| 493 | { |
| 494 | struct dwarf_section *section = &debug_displays [debug_addr].section; |
| 495 | |
| 496 | if (section->start == NULL) |
| 497 | return (_("<no .debug_addr section>")); |
| 498 | |
| 499 | if (offset + bytes > section->size) |
| 500 | { |
| 501 | warn (_("Offset into section %s too big: %s\n"), |
| 502 | section->name, dwarf_vmatoa ("x", offset)); |
| 503 | return "<offset too big>"; |
| 504 | } |
| 505 | |
| 506 | return dwarf_vmatoa ("x", byte_get (section->start + offset, bytes)); |
| 507 | } |
| 508 | |
| 509 | |
| 510 | /* FIXME: There are better and more efficient ways to handle |
| 511 | these structures. For now though, I just want something that |
| 512 | is simple to implement. */ |
| 513 | typedef struct abbrev_attr |
| 514 | { |
| 515 | unsigned long attribute; |
| 516 | unsigned long form; |
| 517 | struct abbrev_attr *next; |
| 518 | } |
| 519 | abbrev_attr; |
| 520 | |
| 521 | typedef struct abbrev_entry |
| 522 | { |
| 523 | unsigned long entry; |
| 524 | unsigned long tag; |
| 525 | int children; |
| 526 | struct abbrev_attr *first_attr; |
| 527 | struct abbrev_attr *last_attr; |
| 528 | struct abbrev_entry *next; |
| 529 | } |
| 530 | abbrev_entry; |
| 531 | |
| 532 | static abbrev_entry *first_abbrev = NULL; |
| 533 | static abbrev_entry *last_abbrev = NULL; |
| 534 | |
| 535 | static void |
| 536 | free_abbrevs (void) |
| 537 | { |
| 538 | abbrev_entry *abbrv; |
| 539 | |
| 540 | for (abbrv = first_abbrev; abbrv;) |
| 541 | { |
| 542 | abbrev_entry *next_abbrev = abbrv->next; |
| 543 | abbrev_attr *attr; |
| 544 | |
| 545 | for (attr = abbrv->first_attr; attr;) |
| 546 | { |
| 547 | abbrev_attr *next_attr = attr->next; |
| 548 | |
| 549 | free (attr); |
| 550 | attr = next_attr; |
| 551 | } |
| 552 | |
| 553 | free (abbrv); |
| 554 | abbrv = next_abbrev; |
| 555 | } |
| 556 | |
| 557 | last_abbrev = first_abbrev = NULL; |
| 558 | } |
| 559 | |
| 560 | static void |
| 561 | add_abbrev (unsigned long number, unsigned long tag, int children) |
| 562 | { |
| 563 | abbrev_entry *entry; |
| 564 | |
| 565 | entry = (abbrev_entry *) malloc (sizeof (*entry)); |
| 566 | if (entry == NULL) |
| 567 | /* ugg */ |
| 568 | return; |
| 569 | |
| 570 | entry->entry = number; |
| 571 | entry->tag = tag; |
| 572 | entry->children = children; |
| 573 | entry->first_attr = NULL; |
| 574 | entry->last_attr = NULL; |
| 575 | entry->next = NULL; |
| 576 | |
| 577 | if (first_abbrev == NULL) |
| 578 | first_abbrev = entry; |
| 579 | else |
| 580 | last_abbrev->next = entry; |
| 581 | |
| 582 | last_abbrev = entry; |
| 583 | } |
| 584 | |
| 585 | static void |
| 586 | add_abbrev_attr (unsigned long attribute, unsigned long form) |
| 587 | { |
| 588 | abbrev_attr *attr; |
| 589 | |
| 590 | attr = (abbrev_attr *) malloc (sizeof (*attr)); |
| 591 | if (attr == NULL) |
| 592 | /* ugg */ |
| 593 | return; |
| 594 | |
| 595 | attr->attribute = attribute; |
| 596 | attr->form = form; |
| 597 | attr->next = NULL; |
| 598 | |
| 599 | if (last_abbrev->first_attr == NULL) |
| 600 | last_abbrev->first_attr = attr; |
| 601 | else |
| 602 | last_abbrev->last_attr->next = attr; |
| 603 | |
| 604 | last_abbrev->last_attr = attr; |
| 605 | } |
| 606 | |
| 607 | /* Processes the (partial) contents of a .debug_abbrev section. |
| 608 | Returns NULL if the end of the section was encountered. |
| 609 | Returns the address after the last byte read if the end of |
| 610 | an abbreviation set was found. */ |
| 611 | |
| 612 | static unsigned char * |
| 613 | process_abbrev_section (unsigned char *start, unsigned char *end) |
| 614 | { |
| 615 | if (first_abbrev != NULL) |
| 616 | return NULL; |
| 617 | |
| 618 | while (start < end) |
| 619 | { |
| 620 | unsigned int bytes_read; |
| 621 | unsigned long entry; |
| 622 | unsigned long tag; |
| 623 | unsigned long attribute; |
| 624 | int children; |
| 625 | |
| 626 | entry = read_leb128 (start, & bytes_read, 0); |
| 627 | start += bytes_read; |
| 628 | |
| 629 | /* A single zero is supposed to end the section according |
| 630 | to the standard. If there's more, then signal that to |
| 631 | the caller. */ |
| 632 | if (entry == 0) |
| 633 | return start == end ? NULL : start; |
| 634 | |
| 635 | tag = read_leb128 (start, & bytes_read, 0); |
| 636 | start += bytes_read; |
| 637 | |
| 638 | children = *start++; |
| 639 | |
| 640 | add_abbrev (entry, tag, children); |
| 641 | |
| 642 | do |
| 643 | { |
| 644 | unsigned long form; |
| 645 | |
| 646 | attribute = read_leb128 (start, & bytes_read, 0); |
| 647 | start += bytes_read; |
| 648 | |
| 649 | form = read_leb128 (start, & bytes_read, 0); |
| 650 | start += bytes_read; |
| 651 | |
| 652 | add_abbrev_attr (attribute, form); |
| 653 | } |
| 654 | while (attribute != 0); |
| 655 | } |
| 656 | |
| 657 | /* Report the missing single zero which ends the section. */ |
| 658 | error (_(".debug_abbrev section not zero terminated\n")); |
| 659 | |
| 660 | return NULL; |
| 661 | } |
| 662 | |
| 663 | static const char * |
| 664 | get_TAG_name (unsigned long tag) |
| 665 | { |
| 666 | const char *name = get_DW_TAG_name ((unsigned int)tag); |
| 667 | |
| 668 | if (name == NULL) |
| 669 | { |
| 670 | static char buffer[100]; |
| 671 | |
| 672 | snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag); |
| 673 | return buffer; |
| 674 | } |
| 675 | |
| 676 | return name; |
| 677 | } |
| 678 | |
| 679 | static const char * |
| 680 | get_FORM_name (unsigned long form) |
| 681 | { |
| 682 | const char *name; |
| 683 | |
| 684 | if (form == 0) |
| 685 | return "DW_FORM value: 0"; |
| 686 | |
| 687 | name = get_DW_FORM_name (form); |
| 688 | if (name == NULL) |
| 689 | { |
| 690 | static char buffer[100]; |
| 691 | |
| 692 | snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form); |
| 693 | return buffer; |
| 694 | } |
| 695 | |
| 696 | return name; |
| 697 | } |
| 698 | |
| 699 | static unsigned char * |
| 700 | display_block (unsigned char *data, dwarf_vma length) |
| 701 | { |
| 702 | printf (_(" %s byte block: "), dwarf_vmatoa ("u", length)); |
| 703 | |
| 704 | while (length --) |
| 705 | printf ("%lx ", (unsigned long) byte_get (data++, 1)); |
| 706 | |
| 707 | return data; |
| 708 | } |
| 709 | |
| 710 | static int |
| 711 | decode_location_expression (unsigned char * data, |
| 712 | unsigned int pointer_size, |
| 713 | unsigned int offset_size, |
| 714 | int dwarf_version, |
| 715 | dwarf_vma length, |
| 716 | dwarf_vma cu_offset, |
| 717 | struct dwarf_section * section) |
| 718 | { |
| 719 | unsigned op; |
| 720 | unsigned int bytes_read; |
| 721 | dwarf_vma uvalue; |
| 722 | unsigned char *end = data + length; |
| 723 | int need_frame_base = 0; |
| 724 | |
| 725 | while (data < end) |
| 726 | { |
| 727 | op = *data++; |
| 728 | |
| 729 | switch (op) |
| 730 | { |
| 731 | case DW_OP_addr: |
| 732 | printf ("DW_OP_addr: %s", |
| 733 | dwarf_vmatoa ("x", byte_get (data, pointer_size))); |
| 734 | data += pointer_size; |
| 735 | break; |
| 736 | case DW_OP_deref: |
| 737 | printf ("DW_OP_deref"); |
| 738 | break; |
| 739 | case DW_OP_const1u: |
| 740 | printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1)); |
| 741 | break; |
| 742 | case DW_OP_const1s: |
| 743 | printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1)); |
| 744 | break; |
| 745 | case DW_OP_const2u: |
| 746 | printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2)); |
| 747 | data += 2; |
| 748 | break; |
| 749 | case DW_OP_const2s: |
| 750 | printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2)); |
| 751 | data += 2; |
| 752 | break; |
| 753 | case DW_OP_const4u: |
| 754 | printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4)); |
| 755 | data += 4; |
| 756 | break; |
| 757 | case DW_OP_const4s: |
| 758 | printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4)); |
| 759 | data += 4; |
| 760 | break; |
| 761 | case DW_OP_const8u: |
| 762 | printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4), |
| 763 | (unsigned long) byte_get (data + 4, 4)); |
| 764 | data += 8; |
| 765 | break; |
| 766 | case DW_OP_const8s: |
| 767 | printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4), |
| 768 | (long) byte_get (data + 4, 4)); |
| 769 | data += 8; |
| 770 | break; |
| 771 | case DW_OP_constu: |
| 772 | printf ("DW_OP_constu: %s", |
| 773 | dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0))); |
| 774 | data += bytes_read; |
| 775 | break; |
| 776 | case DW_OP_consts: |
| 777 | printf ("DW_OP_consts: %s", |
| 778 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read))); |
| 779 | data += bytes_read; |
| 780 | break; |
| 781 | case DW_OP_dup: |
| 782 | printf ("DW_OP_dup"); |
| 783 | break; |
| 784 | case DW_OP_drop: |
| 785 | printf ("DW_OP_drop"); |
| 786 | break; |
| 787 | case DW_OP_over: |
| 788 | printf ("DW_OP_over"); |
| 789 | break; |
| 790 | case DW_OP_pick: |
| 791 | printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1)); |
| 792 | break; |
| 793 | case DW_OP_swap: |
| 794 | printf ("DW_OP_swap"); |
| 795 | break; |
| 796 | case DW_OP_rot: |
| 797 | printf ("DW_OP_rot"); |
| 798 | break; |
| 799 | case DW_OP_xderef: |
| 800 | printf ("DW_OP_xderef"); |
| 801 | break; |
| 802 | case DW_OP_abs: |
| 803 | printf ("DW_OP_abs"); |
| 804 | break; |
| 805 | case DW_OP_and: |
| 806 | printf ("DW_OP_and"); |
| 807 | break; |
| 808 | case DW_OP_div: |
| 809 | printf ("DW_OP_div"); |
| 810 | break; |
| 811 | case DW_OP_minus: |
| 812 | printf ("DW_OP_minus"); |
| 813 | break; |
| 814 | case DW_OP_mod: |
| 815 | printf ("DW_OP_mod"); |
| 816 | break; |
| 817 | case DW_OP_mul: |
| 818 | printf ("DW_OP_mul"); |
| 819 | break; |
| 820 | case DW_OP_neg: |
| 821 | printf ("DW_OP_neg"); |
| 822 | break; |
| 823 | case DW_OP_not: |
| 824 | printf ("DW_OP_not"); |
| 825 | break; |
| 826 | case DW_OP_or: |
| 827 | printf ("DW_OP_or"); |
| 828 | break; |
| 829 | case DW_OP_plus: |
| 830 | printf ("DW_OP_plus"); |
| 831 | break; |
| 832 | case DW_OP_plus_uconst: |
| 833 | printf ("DW_OP_plus_uconst: %s", |
| 834 | dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0))); |
| 835 | data += bytes_read; |
| 836 | break; |
| 837 | case DW_OP_shl: |
| 838 | printf ("DW_OP_shl"); |
| 839 | break; |
| 840 | case DW_OP_shr: |
| 841 | printf ("DW_OP_shr"); |
| 842 | break; |
| 843 | case DW_OP_shra: |
| 844 | printf ("DW_OP_shra"); |
| 845 | break; |
| 846 | case DW_OP_xor: |
| 847 | printf ("DW_OP_xor"); |
| 848 | break; |
| 849 | case DW_OP_bra: |
| 850 | printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2)); |
| 851 | data += 2; |
| 852 | break; |
| 853 | case DW_OP_eq: |
| 854 | printf ("DW_OP_eq"); |
| 855 | break; |
| 856 | case DW_OP_ge: |
| 857 | printf ("DW_OP_ge"); |
| 858 | break; |
| 859 | case DW_OP_gt: |
| 860 | printf ("DW_OP_gt"); |
| 861 | break; |
| 862 | case DW_OP_le: |
| 863 | printf ("DW_OP_le"); |
| 864 | break; |
| 865 | case DW_OP_lt: |
| 866 | printf ("DW_OP_lt"); |
| 867 | break; |
| 868 | case DW_OP_ne: |
| 869 | printf ("DW_OP_ne"); |
| 870 | break; |
| 871 | case DW_OP_skip: |
| 872 | printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2)); |
| 873 | data += 2; |
| 874 | break; |
| 875 | |
| 876 | case DW_OP_lit0: |
| 877 | case DW_OP_lit1: |
| 878 | case DW_OP_lit2: |
| 879 | case DW_OP_lit3: |
| 880 | case DW_OP_lit4: |
| 881 | case DW_OP_lit5: |
| 882 | case DW_OP_lit6: |
| 883 | case DW_OP_lit7: |
| 884 | case DW_OP_lit8: |
| 885 | case DW_OP_lit9: |
| 886 | case DW_OP_lit10: |
| 887 | case DW_OP_lit11: |
| 888 | case DW_OP_lit12: |
| 889 | case DW_OP_lit13: |
| 890 | case DW_OP_lit14: |
| 891 | case DW_OP_lit15: |
| 892 | case DW_OP_lit16: |
| 893 | case DW_OP_lit17: |
| 894 | case DW_OP_lit18: |
| 895 | case DW_OP_lit19: |
| 896 | case DW_OP_lit20: |
| 897 | case DW_OP_lit21: |
| 898 | case DW_OP_lit22: |
| 899 | case DW_OP_lit23: |
| 900 | case DW_OP_lit24: |
| 901 | case DW_OP_lit25: |
| 902 | case DW_OP_lit26: |
| 903 | case DW_OP_lit27: |
| 904 | case DW_OP_lit28: |
| 905 | case DW_OP_lit29: |
| 906 | case DW_OP_lit30: |
| 907 | case DW_OP_lit31: |
| 908 | printf ("DW_OP_lit%d", op - DW_OP_lit0); |
| 909 | break; |
| 910 | |
| 911 | case DW_OP_reg0: |
| 912 | case DW_OP_reg1: |
| 913 | case DW_OP_reg2: |
| 914 | case DW_OP_reg3: |
| 915 | case DW_OP_reg4: |
| 916 | case DW_OP_reg5: |
| 917 | case DW_OP_reg6: |
| 918 | case DW_OP_reg7: |
| 919 | case DW_OP_reg8: |
| 920 | case DW_OP_reg9: |
| 921 | case DW_OP_reg10: |
| 922 | case DW_OP_reg11: |
| 923 | case DW_OP_reg12: |
| 924 | case DW_OP_reg13: |
| 925 | case DW_OP_reg14: |
| 926 | case DW_OP_reg15: |
| 927 | case DW_OP_reg16: |
| 928 | case DW_OP_reg17: |
| 929 | case DW_OP_reg18: |
| 930 | case DW_OP_reg19: |
| 931 | case DW_OP_reg20: |
| 932 | case DW_OP_reg21: |
| 933 | case DW_OP_reg22: |
| 934 | case DW_OP_reg23: |
| 935 | case DW_OP_reg24: |
| 936 | case DW_OP_reg25: |
| 937 | case DW_OP_reg26: |
| 938 | case DW_OP_reg27: |
| 939 | case DW_OP_reg28: |
| 940 | case DW_OP_reg29: |
| 941 | case DW_OP_reg30: |
| 942 | case DW_OP_reg31: |
| 943 | printf ("DW_OP_reg%d (%s)", op - DW_OP_reg0, |
| 944 | regname (op - DW_OP_reg0, 1)); |
| 945 | break; |
| 946 | |
| 947 | case DW_OP_breg0: |
| 948 | case DW_OP_breg1: |
| 949 | case DW_OP_breg2: |
| 950 | case DW_OP_breg3: |
| 951 | case DW_OP_breg4: |
| 952 | case DW_OP_breg5: |
| 953 | case DW_OP_breg6: |
| 954 | case DW_OP_breg7: |
| 955 | case DW_OP_breg8: |
| 956 | case DW_OP_breg9: |
| 957 | case DW_OP_breg10: |
| 958 | case DW_OP_breg11: |
| 959 | case DW_OP_breg12: |
| 960 | case DW_OP_breg13: |
| 961 | case DW_OP_breg14: |
| 962 | case DW_OP_breg15: |
| 963 | case DW_OP_breg16: |
| 964 | case DW_OP_breg17: |
| 965 | case DW_OP_breg18: |
| 966 | case DW_OP_breg19: |
| 967 | case DW_OP_breg20: |
| 968 | case DW_OP_breg21: |
| 969 | case DW_OP_breg22: |
| 970 | case DW_OP_breg23: |
| 971 | case DW_OP_breg24: |
| 972 | case DW_OP_breg25: |
| 973 | case DW_OP_breg26: |
| 974 | case DW_OP_breg27: |
| 975 | case DW_OP_breg28: |
| 976 | case DW_OP_breg29: |
| 977 | case DW_OP_breg30: |
| 978 | case DW_OP_breg31: |
| 979 | printf ("DW_OP_breg%d (%s): %s", |
| 980 | op - DW_OP_breg0, |
| 981 | regname (op - DW_OP_breg0, 1), |
| 982 | dwarf_vmatoa ("d", (dwarf_signed_vma) |
| 983 | read_leb128 (data, &bytes_read, 1))); |
| 984 | data += bytes_read; |
| 985 | break; |
| 986 | |
| 987 | case DW_OP_regx: |
| 988 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 989 | data += bytes_read; |
| 990 | printf ("DW_OP_regx: %s (%s)", |
| 991 | dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); |
| 992 | break; |
| 993 | case DW_OP_fbreg: |
| 994 | need_frame_base = 1; |
| 995 | printf ("DW_OP_fbreg: %s", |
| 996 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read))); |
| 997 | data += bytes_read; |
| 998 | break; |
| 999 | case DW_OP_bregx: |
| 1000 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1001 | data += bytes_read; |
| 1002 | printf ("DW_OP_bregx: %s (%s) %s", |
| 1003 | dwarf_vmatoa ("u", uvalue), regname (uvalue, 1), |
| 1004 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read))); |
| 1005 | data += bytes_read; |
| 1006 | break; |
| 1007 | case DW_OP_piece: |
| 1008 | printf ("DW_OP_piece: %s", |
| 1009 | dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0))); |
| 1010 | data += bytes_read; |
| 1011 | break; |
| 1012 | case DW_OP_deref_size: |
| 1013 | printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1)); |
| 1014 | break; |
| 1015 | case DW_OP_xderef_size: |
| 1016 | printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1)); |
| 1017 | break; |
| 1018 | case DW_OP_nop: |
| 1019 | printf ("DW_OP_nop"); |
| 1020 | break; |
| 1021 | |
| 1022 | /* DWARF 3 extensions. */ |
| 1023 | case DW_OP_push_object_address: |
| 1024 | printf ("DW_OP_push_object_address"); |
| 1025 | break; |
| 1026 | case DW_OP_call2: |
| 1027 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1028 | this ought to be an 8-byte wide computation. */ |
| 1029 | printf ("DW_OP_call2: <0x%s>", |
| 1030 | dwarf_vmatoa ("x", (dwarf_signed_vma) byte_get (data, 2) |
| 1031 | + cu_offset)); |
| 1032 | data += 2; |
| 1033 | break; |
| 1034 | case DW_OP_call4: |
| 1035 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1036 | this ought to be an 8-byte wide computation. */ |
| 1037 | printf ("DW_OP_call4: <0x%s>", |
| 1038 | dwarf_vmatoa ("x", (dwarf_signed_vma) byte_get (data, 4) |
| 1039 | + cu_offset)); |
| 1040 | data += 4; |
| 1041 | break; |
| 1042 | case DW_OP_call_ref: |
| 1043 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1044 | this ought to be an 8-byte wide computation. */ |
| 1045 | if (dwarf_version == -1) |
| 1046 | { |
| 1047 | printf (_("(DW_OP_call_ref in frame info)")); |
| 1048 | /* No way to tell where the next op is, so just bail. */ |
| 1049 | return need_frame_base; |
| 1050 | } |
| 1051 | if (dwarf_version == 2) |
| 1052 | { |
| 1053 | printf ("DW_OP_call_ref: <0x%s>", |
| 1054 | dwarf_vmatoa ("x", byte_get (data, pointer_size))); |
| 1055 | data += pointer_size; |
| 1056 | } |
| 1057 | else |
| 1058 | { |
| 1059 | printf ("DW_OP_call_ref: <0x%s>", |
| 1060 | dwarf_vmatoa ("x", byte_get (data, offset_size))); |
| 1061 | data += offset_size; |
| 1062 | } |
| 1063 | break; |
| 1064 | case DW_OP_form_tls_address: |
| 1065 | printf ("DW_OP_form_tls_address"); |
| 1066 | break; |
| 1067 | case DW_OP_call_frame_cfa: |
| 1068 | printf ("DW_OP_call_frame_cfa"); |
| 1069 | break; |
| 1070 | case DW_OP_bit_piece: |
| 1071 | printf ("DW_OP_bit_piece: "); |
| 1072 | printf (_("size: %s "), |
| 1073 | dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0))); |
| 1074 | data += bytes_read; |
| 1075 | printf (_("offset: %s "), |
| 1076 | dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0))); |
| 1077 | data += bytes_read; |
| 1078 | break; |
| 1079 | |
| 1080 | /* DWARF 4 extensions. */ |
| 1081 | case DW_OP_stack_value: |
| 1082 | printf ("DW_OP_stack_value"); |
| 1083 | break; |
| 1084 | |
| 1085 | case DW_OP_implicit_value: |
| 1086 | printf ("DW_OP_implicit_value"); |
| 1087 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1088 | data += bytes_read; |
| 1089 | display_block (data, uvalue); |
| 1090 | data += uvalue; |
| 1091 | break; |
| 1092 | |
| 1093 | /* GNU extensions. */ |
| 1094 | case DW_OP_GNU_push_tls_address: |
| 1095 | printf (_("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown")); |
| 1096 | break; |
| 1097 | case DW_OP_GNU_uninit: |
| 1098 | printf ("DW_OP_GNU_uninit"); |
| 1099 | /* FIXME: Is there data associated with this OP ? */ |
| 1100 | break; |
| 1101 | case DW_OP_GNU_encoded_addr: |
| 1102 | { |
| 1103 | int encoding; |
| 1104 | dwarf_vma addr; |
| 1105 | |
| 1106 | encoding = *data++; |
| 1107 | addr = get_encoded_value (data, encoding, section); |
| 1108 | data += size_of_encoded_value (encoding); |
| 1109 | |
| 1110 | printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding); |
| 1111 | print_dwarf_vma (addr, pointer_size); |
| 1112 | } |
| 1113 | break; |
| 1114 | case DW_OP_GNU_implicit_pointer: |
| 1115 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1116 | this ought to be an 8-byte wide computation. */ |
| 1117 | if (dwarf_version == -1) |
| 1118 | { |
| 1119 | printf (_("(DW_OP_GNU_implicit_pointer in frame info)")); |
| 1120 | /* No way to tell where the next op is, so just bail. */ |
| 1121 | return need_frame_base; |
| 1122 | } |
| 1123 | if (dwarf_version == 2) |
| 1124 | { |
| 1125 | printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s", |
| 1126 | dwarf_vmatoa ("x", byte_get (data, pointer_size)), |
| 1127 | dwarf_vmatoa ("d", read_sleb128 (data + pointer_size, |
| 1128 | &bytes_read))); |
| 1129 | data += pointer_size + bytes_read; |
| 1130 | } |
| 1131 | else |
| 1132 | { |
| 1133 | printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s", |
| 1134 | dwarf_vmatoa ("x", byte_get (data, offset_size)), |
| 1135 | dwarf_vmatoa ("d", read_sleb128 (data + offset_size, |
| 1136 | &bytes_read))); |
| 1137 | data += offset_size + bytes_read; |
| 1138 | } |
| 1139 | break; |
| 1140 | case DW_OP_GNU_entry_value: |
| 1141 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1142 | data += bytes_read; |
| 1143 | printf ("DW_OP_GNU_entry_value: ("); |
| 1144 | if (decode_location_expression (data, pointer_size, offset_size, |
| 1145 | dwarf_version, uvalue, |
| 1146 | cu_offset, section)) |
| 1147 | need_frame_base = 1; |
| 1148 | putchar (')'); |
| 1149 | data += uvalue; |
| 1150 | break; |
| 1151 | case DW_OP_GNU_const_type: |
| 1152 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1153 | data += bytes_read; |
| 1154 | printf ("DW_OP_GNU_const_type: <0x%s> ", |
| 1155 | dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1156 | uvalue = byte_get (data++, 1); |
| 1157 | display_block (data, uvalue); |
| 1158 | data += uvalue; |
| 1159 | break; |
| 1160 | case DW_OP_GNU_regval_type: |
| 1161 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1162 | data += bytes_read; |
| 1163 | printf ("DW_OP_GNU_regval_type: %s (%s)", |
| 1164 | dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); |
| 1165 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1166 | data += bytes_read; |
| 1167 | printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1168 | break; |
| 1169 | case DW_OP_GNU_deref_type: |
| 1170 | printf ("DW_OP_GNU_deref_type: %ld", (long) byte_get (data++, 1)); |
| 1171 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1172 | data += bytes_read; |
| 1173 | printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1174 | break; |
| 1175 | case DW_OP_GNU_convert: |
| 1176 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1177 | data += bytes_read; |
| 1178 | printf ("DW_OP_GNU_convert <0x%s>", |
| 1179 | dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); |
| 1180 | break; |
| 1181 | case DW_OP_GNU_reinterpret: |
| 1182 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1183 | data += bytes_read; |
| 1184 | printf ("DW_OP_GNU_reinterpret <0x%s>", |
| 1185 | dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); |
| 1186 | break; |
| 1187 | case DW_OP_GNU_parameter_ref: |
| 1188 | printf ("DW_OP_GNU_parameter_ref: <0x%s>", |
| 1189 | dwarf_vmatoa ("x", cu_offset + byte_get (data, 4))); |
| 1190 | data += 4; |
| 1191 | break; |
| 1192 | case DW_OP_GNU_addr_index: |
| 1193 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1194 | data += bytes_read; |
| 1195 | printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| 1196 | break; |
| 1197 | case DW_OP_GNU_const_index: |
| 1198 | uvalue = read_leb128 (data, &bytes_read, 0); |
| 1199 | data += bytes_read; |
| 1200 | printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| 1201 | break; |
| 1202 | |
| 1203 | /* HP extensions. */ |
| 1204 | case DW_OP_HP_is_value: |
| 1205 | printf ("DW_OP_HP_is_value"); |
| 1206 | /* FIXME: Is there data associated with this OP ? */ |
| 1207 | break; |
| 1208 | case DW_OP_HP_fltconst4: |
| 1209 | printf ("DW_OP_HP_fltconst4"); |
| 1210 | /* FIXME: Is there data associated with this OP ? */ |
| 1211 | break; |
| 1212 | case DW_OP_HP_fltconst8: |
| 1213 | printf ("DW_OP_HP_fltconst8"); |
| 1214 | /* FIXME: Is there data associated with this OP ? */ |
| 1215 | break; |
| 1216 | case DW_OP_HP_mod_range: |
| 1217 | printf ("DW_OP_HP_mod_range"); |
| 1218 | /* FIXME: Is there data associated with this OP ? */ |
| 1219 | break; |
| 1220 | case DW_OP_HP_unmod_range: |
| 1221 | printf ("DW_OP_HP_unmod_range"); |
| 1222 | /* FIXME: Is there data associated with this OP ? */ |
| 1223 | break; |
| 1224 | case DW_OP_HP_tls: |
| 1225 | printf ("DW_OP_HP_tls"); |
| 1226 | /* FIXME: Is there data associated with this OP ? */ |
| 1227 | break; |
| 1228 | |
| 1229 | /* PGI (STMicroelectronics) extensions. */ |
| 1230 | case DW_OP_PGI_omp_thread_num: |
| 1231 | /* Pushes the thread number for the current thread as it would be |
| 1232 | returned by the standard OpenMP library function: |
| 1233 | omp_get_thread_num(). The "current thread" is the thread for |
| 1234 | which the expression is being evaluated. */ |
| 1235 | printf ("DW_OP_PGI_omp_thread_num"); |
| 1236 | break; |
| 1237 | |
| 1238 | default: |
| 1239 | if (op >= DW_OP_lo_user |
| 1240 | && op <= DW_OP_hi_user) |
| 1241 | printf (_("(User defined location op)")); |
| 1242 | else |
| 1243 | printf (_("(Unknown location op)")); |
| 1244 | /* No way to tell where the next op is, so just bail. */ |
| 1245 | return need_frame_base; |
| 1246 | } |
| 1247 | |
| 1248 | /* Separate the ops. */ |
| 1249 | if (data < end) |
| 1250 | printf ("; "); |
| 1251 | } |
| 1252 | |
| 1253 | return need_frame_base; |
| 1254 | } |
| 1255 | |
| 1256 | static unsigned char * |
| 1257 | read_and_display_attr_value (unsigned long attribute, |
| 1258 | unsigned long form, |
| 1259 | unsigned char * data, |
| 1260 | dwarf_vma cu_offset, |
| 1261 | dwarf_vma pointer_size, |
| 1262 | dwarf_vma offset_size, |
| 1263 | int dwarf_version, |
| 1264 | debug_info * debug_info_p, |
| 1265 | int do_loc, |
| 1266 | struct dwarf_section * section) |
| 1267 | { |
| 1268 | dwarf_vma uvalue = 0; |
| 1269 | unsigned char *block_start = NULL; |
| 1270 | unsigned char * orig_data = data; |
| 1271 | unsigned int bytes_read; |
| 1272 | |
| 1273 | switch (form) |
| 1274 | { |
| 1275 | default: |
| 1276 | break; |
| 1277 | |
| 1278 | case DW_FORM_ref_addr: |
| 1279 | if (dwarf_version == 2) |
| 1280 | { |
| 1281 | uvalue = byte_get (data, pointer_size); |
| 1282 | data += pointer_size; |
| 1283 | } |
| 1284 | else if (dwarf_version == 3 || dwarf_version == 4) |
| 1285 | { |
| 1286 | uvalue = byte_get (data, offset_size); |
| 1287 | data += offset_size; |
| 1288 | } |
| 1289 | else |
| 1290 | error (_("Internal error: DWARF version is not 2, 3 or 4.\n")); |
| 1291 | |
| 1292 | break; |
| 1293 | |
| 1294 | case DW_FORM_addr: |
| 1295 | uvalue = byte_get (data, pointer_size); |
| 1296 | data += pointer_size; |
| 1297 | break; |
| 1298 | |
| 1299 | case DW_FORM_strp: |
| 1300 | case DW_FORM_sec_offset: |
| 1301 | case DW_FORM_GNU_ref_alt: |
| 1302 | case DW_FORM_GNU_strp_alt: |
| 1303 | uvalue = byte_get (data, offset_size); |
| 1304 | data += offset_size; |
| 1305 | break; |
| 1306 | |
| 1307 | case DW_FORM_flag_present: |
| 1308 | uvalue = 1; |
| 1309 | break; |
| 1310 | |
| 1311 | case DW_FORM_ref1: |
| 1312 | case DW_FORM_flag: |
| 1313 | case DW_FORM_data1: |
| 1314 | uvalue = byte_get (data++, 1); |
| 1315 | break; |
| 1316 | |
| 1317 | case DW_FORM_ref2: |
| 1318 | case DW_FORM_data2: |
| 1319 | uvalue = byte_get (data, 2); |
| 1320 | data += 2; |
| 1321 | break; |
| 1322 | |
| 1323 | case DW_FORM_ref4: |
| 1324 | case DW_FORM_data4: |
| 1325 | uvalue = byte_get (data, 4); |
| 1326 | data += 4; |
| 1327 | break; |
| 1328 | |
| 1329 | case DW_FORM_sdata: |
| 1330 | uvalue = read_leb128 (data, & bytes_read, 1); |
| 1331 | data += bytes_read; |
| 1332 | break; |
| 1333 | |
| 1334 | case DW_FORM_GNU_str_index: |
| 1335 | uvalue = read_leb128 (data, & bytes_read, 0); |
| 1336 | data += bytes_read; |
| 1337 | break; |
| 1338 | |
| 1339 | case DW_FORM_ref_udata: |
| 1340 | case DW_FORM_udata: |
| 1341 | uvalue = read_leb128 (data, & bytes_read, 0); |
| 1342 | data += bytes_read; |
| 1343 | break; |
| 1344 | |
| 1345 | case DW_FORM_indirect: |
| 1346 | form = read_leb128 (data, & bytes_read, 0); |
| 1347 | data += bytes_read; |
| 1348 | if (!do_loc) |
| 1349 | printf (" %s", get_FORM_name (form)); |
| 1350 | return read_and_display_attr_value (attribute, form, data, |
| 1351 | cu_offset, pointer_size, |
| 1352 | offset_size, dwarf_version, |
| 1353 | debug_info_p, do_loc, |
| 1354 | section); |
| 1355 | case DW_FORM_GNU_addr_index: |
| 1356 | uvalue = read_leb128 (data, & bytes_read, 0); |
| 1357 | data += bytes_read; |
| 1358 | break; |
| 1359 | } |
| 1360 | |
| 1361 | switch (form) |
| 1362 | { |
| 1363 | case DW_FORM_ref_addr: |
| 1364 | if (!do_loc) |
| 1365 | printf (" <0x%s>", dwarf_vmatoa ("x",uvalue)); |
| 1366 | break; |
| 1367 | |
| 1368 | case DW_FORM_GNU_ref_alt: |
| 1369 | if (!do_loc) |
| 1370 | printf (" <alt 0x%s>", dwarf_vmatoa ("x",uvalue)); |
| 1371 | break; |
| 1372 | |
| 1373 | case DW_FORM_ref1: |
| 1374 | case DW_FORM_ref2: |
| 1375 | case DW_FORM_ref4: |
| 1376 | case DW_FORM_ref_udata: |
| 1377 | if (!do_loc) |
| 1378 | printf (" <0x%s>", dwarf_vmatoa ("x", uvalue + cu_offset)); |
| 1379 | break; |
| 1380 | |
| 1381 | case DW_FORM_data4: |
| 1382 | case DW_FORM_addr: |
| 1383 | case DW_FORM_sec_offset: |
| 1384 | if (!do_loc) |
| 1385 | printf (" 0x%s", dwarf_vmatoa ("x", uvalue)); |
| 1386 | break; |
| 1387 | |
| 1388 | case DW_FORM_flag_present: |
| 1389 | case DW_FORM_flag: |
| 1390 | case DW_FORM_data1: |
| 1391 | case DW_FORM_data2: |
| 1392 | case DW_FORM_sdata: |
| 1393 | case DW_FORM_udata: |
| 1394 | if (!do_loc) |
| 1395 | printf (" %s", dwarf_vmatoa ("d", uvalue)); |
| 1396 | break; |
| 1397 | |
| 1398 | case DW_FORM_ref8: |
| 1399 | case DW_FORM_data8: |
| 1400 | if (!do_loc) |
| 1401 | { |
| 1402 | dwarf_vma high_bits; |
| 1403 | char buf[64]; |
| 1404 | |
| 1405 | byte_get_64 (data, &high_bits, &uvalue); |
| 1406 | printf (" 0x%s", |
| 1407 | dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf))); |
| 1408 | } |
| 1409 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1410 | && num_debug_info_entries == 0) |
| 1411 | { |
| 1412 | if (sizeof (uvalue) == 8) |
| 1413 | uvalue = byte_get (data, 8); |
| 1414 | else |
| 1415 | error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n")); |
| 1416 | } |
| 1417 | data += 8; |
| 1418 | break; |
| 1419 | |
| 1420 | case DW_FORM_string: |
| 1421 | if (!do_loc) |
| 1422 | printf (" %s", data); |
| 1423 | data += strlen ((char *) data) + 1; |
| 1424 | break; |
| 1425 | |
| 1426 | case DW_FORM_block: |
| 1427 | case DW_FORM_exprloc: |
| 1428 | uvalue = read_leb128 (data, & bytes_read, 0); |
| 1429 | block_start = data + bytes_read; |
| 1430 | if (do_loc) |
| 1431 | data = block_start + uvalue; |
| 1432 | else |
| 1433 | data = display_block (block_start, uvalue); |
| 1434 | break; |
| 1435 | |
| 1436 | case DW_FORM_block1: |
| 1437 | uvalue = byte_get (data, 1); |
| 1438 | block_start = data + 1; |
| 1439 | if (do_loc) |
| 1440 | data = block_start + uvalue; |
| 1441 | else |
| 1442 | data = display_block (block_start, uvalue); |
| 1443 | break; |
| 1444 | |
| 1445 | case DW_FORM_block2: |
| 1446 | uvalue = byte_get (data, 2); |
| 1447 | block_start = data + 2; |
| 1448 | if (do_loc) |
| 1449 | data = block_start + uvalue; |
| 1450 | else |
| 1451 | data = display_block (block_start, uvalue); |
| 1452 | break; |
| 1453 | |
| 1454 | case DW_FORM_block4: |
| 1455 | uvalue = byte_get (data, 4); |
| 1456 | block_start = data + 4; |
| 1457 | if (do_loc) |
| 1458 | data = block_start + uvalue; |
| 1459 | else |
| 1460 | data = display_block (block_start, uvalue); |
| 1461 | break; |
| 1462 | |
| 1463 | case DW_FORM_strp: |
| 1464 | if (!do_loc) |
| 1465 | printf (_(" (indirect string, offset: 0x%s): %s"), |
| 1466 | dwarf_vmatoa ("x", uvalue), |
| 1467 | fetch_indirect_string (uvalue)); |
| 1468 | break; |
| 1469 | |
| 1470 | case DW_FORM_GNU_str_index: |
| 1471 | if (!do_loc) |
| 1472 | { |
| 1473 | const char *suffix = strrchr (section->name, '.'); |
| 1474 | int dwo = (suffix && strcmp (suffix, ".dwo") == 0) ? 1 : 0; |
| 1475 | |
| 1476 | printf (_(" (indexed string: 0x%s): %s"), |
| 1477 | dwarf_vmatoa ("x", uvalue), |
| 1478 | fetch_indexed_string (uvalue, offset_size, dwo)); |
| 1479 | } |
| 1480 | break; |
| 1481 | |
| 1482 | case DW_FORM_GNU_strp_alt: |
| 1483 | if (!do_loc) |
| 1484 | printf (_(" (alt indirect string, offset: 0x%s)"), |
| 1485 | dwarf_vmatoa ("x", uvalue)); |
| 1486 | break; |
| 1487 | |
| 1488 | case DW_FORM_indirect: |
| 1489 | /* Handled above. */ |
| 1490 | break; |
| 1491 | |
| 1492 | case DW_FORM_ref_sig8: |
| 1493 | if (!do_loc) |
| 1494 | { |
| 1495 | dwarf_vma high_bits; |
| 1496 | char buf[64]; |
| 1497 | |
| 1498 | byte_get_64 (data, &high_bits, &uvalue); |
| 1499 | printf (" signature: 0x%s", |
| 1500 | dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf))); |
| 1501 | } |
| 1502 | data += 8; |
| 1503 | break; |
| 1504 | |
| 1505 | case DW_FORM_GNU_addr_index: |
| 1506 | if (!do_loc) |
| 1507 | printf (_(" (addr_index: 0x%s): %s"), |
| 1508 | dwarf_vmatoa ("x", uvalue), |
| 1509 | fetch_indexed_value (uvalue * pointer_size, pointer_size)); |
| 1510 | break; |
| 1511 | |
| 1512 | default: |
| 1513 | warn (_("Unrecognized form: %lu\n"), form); |
| 1514 | break; |
| 1515 | } |
| 1516 | |
| 1517 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1518 | && num_debug_info_entries == 0 |
| 1519 | && debug_info_p != NULL) |
| 1520 | { |
| 1521 | switch (attribute) |
| 1522 | { |
| 1523 | case DW_AT_frame_base: |
| 1524 | have_frame_base = 1; |
| 1525 | case DW_AT_location: |
| 1526 | case DW_AT_string_length: |
| 1527 | case DW_AT_return_addr: |
| 1528 | case DW_AT_data_member_location: |
| 1529 | case DW_AT_vtable_elem_location: |
| 1530 | case DW_AT_segment: |
| 1531 | case DW_AT_static_link: |
| 1532 | case DW_AT_use_location: |
| 1533 | case DW_AT_GNU_call_site_value: |
| 1534 | case DW_AT_GNU_call_site_data_value: |
| 1535 | case DW_AT_GNU_call_site_target: |
| 1536 | case DW_AT_GNU_call_site_target_clobbered: |
| 1537 | if ((dwarf_version < 4 |
| 1538 | && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| 1539 | || form == DW_FORM_sec_offset) |
| 1540 | { |
| 1541 | /* Process location list. */ |
| 1542 | unsigned int lmax = debug_info_p->max_loc_offsets; |
| 1543 | unsigned int num = debug_info_p->num_loc_offsets; |
| 1544 | |
| 1545 | if (lmax == 0 || num >= lmax) |
| 1546 | { |
| 1547 | lmax += 1024; |
| 1548 | debug_info_p->loc_offsets = (dwarf_vma *) |
| 1549 | xcrealloc (debug_info_p->loc_offsets, |
| 1550 | lmax, sizeof (*debug_info_p->loc_offsets)); |
| 1551 | debug_info_p->have_frame_base = (int *) |
| 1552 | xcrealloc (debug_info_p->have_frame_base, |
| 1553 | lmax, sizeof (*debug_info_p->have_frame_base)); |
| 1554 | debug_info_p->max_loc_offsets = lmax; |
| 1555 | } |
| 1556 | debug_info_p->loc_offsets [num] = uvalue; |
| 1557 | debug_info_p->have_frame_base [num] = have_frame_base; |
| 1558 | debug_info_p->num_loc_offsets++; |
| 1559 | } |
| 1560 | break; |
| 1561 | |
| 1562 | case DW_AT_low_pc: |
| 1563 | if (need_base_address) |
| 1564 | debug_info_p->base_address = uvalue; |
| 1565 | break; |
| 1566 | |
| 1567 | case DW_AT_GNU_addr_base: |
| 1568 | debug_info_p->addr_base = uvalue; |
| 1569 | break; |
| 1570 | |
| 1571 | case DW_AT_GNU_ranges_base: |
| 1572 | debug_info_p->ranges_base = uvalue; |
| 1573 | break; |
| 1574 | |
| 1575 | case DW_AT_ranges: |
| 1576 | if ((dwarf_version < 4 |
| 1577 | && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| 1578 | || form == DW_FORM_sec_offset) |
| 1579 | { |
| 1580 | /* Process range list. */ |
| 1581 | unsigned int lmax = debug_info_p->max_range_lists; |
| 1582 | unsigned int num = debug_info_p->num_range_lists; |
| 1583 | |
| 1584 | if (lmax == 0 || num >= lmax) |
| 1585 | { |
| 1586 | lmax += 1024; |
| 1587 | debug_info_p->range_lists = (dwarf_vma *) |
| 1588 | xcrealloc (debug_info_p->range_lists, |
| 1589 | lmax, sizeof (*debug_info_p->range_lists)); |
| 1590 | debug_info_p->max_range_lists = lmax; |
| 1591 | } |
| 1592 | debug_info_p->range_lists [num] = uvalue; |
| 1593 | debug_info_p->num_range_lists++; |
| 1594 | } |
| 1595 | break; |
| 1596 | |
| 1597 | default: |
| 1598 | break; |
| 1599 | } |
| 1600 | } |
| 1601 | |
| 1602 | if (do_loc || attribute == 0) |
| 1603 | return data; |
| 1604 | |
| 1605 | /* For some attributes we can display further information. */ |
| 1606 | printf ("\t"); |
| 1607 | |
| 1608 | switch (attribute) |
| 1609 | { |
| 1610 | case DW_AT_inline: |
| 1611 | switch (uvalue) |
| 1612 | { |
| 1613 | case DW_INL_not_inlined: |
| 1614 | printf (_("(not inlined)")); |
| 1615 | break; |
| 1616 | case DW_INL_inlined: |
| 1617 | printf (_("(inlined)")); |
| 1618 | break; |
| 1619 | case DW_INL_declared_not_inlined: |
| 1620 | printf (_("(declared as inline but ignored)")); |
| 1621 | break; |
| 1622 | case DW_INL_declared_inlined: |
| 1623 | printf (_("(declared as inline and inlined)")); |
| 1624 | break; |
| 1625 | default: |
| 1626 | printf (_(" (Unknown inline attribute value: %s)"), |
| 1627 | dwarf_vmatoa ("x", uvalue)); |
| 1628 | break; |
| 1629 | } |
| 1630 | break; |
| 1631 | |
| 1632 | case DW_AT_language: |
| 1633 | switch (uvalue) |
| 1634 | { |
| 1635 | /* Ordered by the numeric value of these constants. */ |
| 1636 | case DW_LANG_C89: printf ("(ANSI C)"); break; |
| 1637 | case DW_LANG_C: printf ("(non-ANSI C)"); break; |
| 1638 | case DW_LANG_Ada83: printf ("(Ada)"); break; |
| 1639 | case DW_LANG_C_plus_plus: printf ("(C++)"); break; |
| 1640 | case DW_LANG_Cobol74: printf ("(Cobol 74)"); break; |
| 1641 | case DW_LANG_Cobol85: printf ("(Cobol 85)"); break; |
| 1642 | case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break; |
| 1643 | case DW_LANG_Fortran90: printf ("(Fortran 90)"); break; |
| 1644 | case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break; |
| 1645 | case DW_LANG_Modula2: printf ("(Modula 2)"); break; |
| 1646 | /* DWARF 2.1 values. */ |
| 1647 | case DW_LANG_Java: printf ("(Java)"); break; |
| 1648 | case DW_LANG_C99: printf ("(ANSI C99)"); break; |
| 1649 | case DW_LANG_Ada95: printf ("(ADA 95)"); break; |
| 1650 | case DW_LANG_Fortran95: printf ("(Fortran 95)"); break; |
| 1651 | /* DWARF 3 values. */ |
| 1652 | case DW_LANG_PLI: printf ("(PLI)"); break; |
| 1653 | case DW_LANG_ObjC: printf ("(Objective C)"); break; |
| 1654 | case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break; |
| 1655 | case DW_LANG_UPC: printf ("(Unified Parallel C)"); break; |
| 1656 | case DW_LANG_D: printf ("(D)"); break; |
| 1657 | /* DWARF 4 values. */ |
| 1658 | case DW_LANG_Python: printf ("(Python)"); break; |
| 1659 | /* DWARF 5 values. */ |
| 1660 | case DW_LANG_Go: printf ("(Go)"); break; |
| 1661 | /* MIPS extension. */ |
| 1662 | case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break; |
| 1663 | /* UPC extension. */ |
| 1664 | case DW_LANG_Upc: printf ("(Unified Parallel C)"); break; |
| 1665 | default: |
| 1666 | if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user) |
| 1667 | printf (_("(implementation defined: %s)"), |
| 1668 | dwarf_vmatoa ("x", uvalue)); |
| 1669 | else |
| 1670 | printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue)); |
| 1671 | break; |
| 1672 | } |
| 1673 | break; |
| 1674 | |
| 1675 | case DW_AT_encoding: |
| 1676 | switch (uvalue) |
| 1677 | { |
| 1678 | case DW_ATE_void: printf ("(void)"); break; |
| 1679 | case DW_ATE_address: printf ("(machine address)"); break; |
| 1680 | case DW_ATE_boolean: printf ("(boolean)"); break; |
| 1681 | case DW_ATE_complex_float: printf ("(complex float)"); break; |
| 1682 | case DW_ATE_float: printf ("(float)"); break; |
| 1683 | case DW_ATE_signed: printf ("(signed)"); break; |
| 1684 | case DW_ATE_signed_char: printf ("(signed char)"); break; |
| 1685 | case DW_ATE_unsigned: printf ("(unsigned)"); break; |
| 1686 | case DW_ATE_unsigned_char: printf ("(unsigned char)"); break; |
| 1687 | /* DWARF 2.1 values: */ |
| 1688 | case DW_ATE_imaginary_float: printf ("(imaginary float)"); break; |
| 1689 | case DW_ATE_decimal_float: printf ("(decimal float)"); break; |
| 1690 | /* DWARF 3 values: */ |
| 1691 | case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break; |
| 1692 | case DW_ATE_numeric_string: printf ("(numeric_string)"); break; |
| 1693 | case DW_ATE_edited: printf ("(edited)"); break; |
| 1694 | case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break; |
| 1695 | case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break; |
| 1696 | /* HP extensions: */ |
| 1697 | case DW_ATE_HP_float80: printf ("(HP_float80)"); break; |
| 1698 | case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break; |
| 1699 | case DW_ATE_HP_float128: printf ("(HP_float128)"); break; |
| 1700 | case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break; |
| 1701 | case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break; |
| 1702 | case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break; |
| 1703 | case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break; |
| 1704 | |
| 1705 | default: |
| 1706 | if (uvalue >= DW_ATE_lo_user |
| 1707 | && uvalue <= DW_ATE_hi_user) |
| 1708 | printf (_("(user defined type)")); |
| 1709 | else |
| 1710 | printf (_("(unknown type)")); |
| 1711 | break; |
| 1712 | } |
| 1713 | break; |
| 1714 | |
| 1715 | case DW_AT_accessibility: |
| 1716 | switch (uvalue) |
| 1717 | { |
| 1718 | case DW_ACCESS_public: printf ("(public)"); break; |
| 1719 | case DW_ACCESS_protected: printf ("(protected)"); break; |
| 1720 | case DW_ACCESS_private: printf ("(private)"); break; |
| 1721 | default: |
| 1722 | printf (_("(unknown accessibility)")); |
| 1723 | break; |
| 1724 | } |
| 1725 | break; |
| 1726 | |
| 1727 | case DW_AT_visibility: |
| 1728 | switch (uvalue) |
| 1729 | { |
| 1730 | case DW_VIS_local: printf ("(local)"); break; |
| 1731 | case DW_VIS_exported: printf ("(exported)"); break; |
| 1732 | case DW_VIS_qualified: printf ("(qualified)"); break; |
| 1733 | default: printf (_("(unknown visibility)")); break; |
| 1734 | } |
| 1735 | break; |
| 1736 | |
| 1737 | case DW_AT_virtuality: |
| 1738 | switch (uvalue) |
| 1739 | { |
| 1740 | case DW_VIRTUALITY_none: printf ("(none)"); break; |
| 1741 | case DW_VIRTUALITY_virtual: printf ("(virtual)"); break; |
| 1742 | case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break; |
| 1743 | default: printf (_("(unknown virtuality)")); break; |
| 1744 | } |
| 1745 | break; |
| 1746 | |
| 1747 | case DW_AT_identifier_case: |
| 1748 | switch (uvalue) |
| 1749 | { |
| 1750 | case DW_ID_case_sensitive: printf ("(case_sensitive)"); break; |
| 1751 | case DW_ID_up_case: printf ("(up_case)"); break; |
| 1752 | case DW_ID_down_case: printf ("(down_case)"); break; |
| 1753 | case DW_ID_case_insensitive: printf ("(case_insensitive)"); break; |
| 1754 | default: printf (_("(unknown case)")); break; |
| 1755 | } |
| 1756 | break; |
| 1757 | |
| 1758 | case DW_AT_calling_convention: |
| 1759 | switch (uvalue) |
| 1760 | { |
| 1761 | case DW_CC_normal: printf ("(normal)"); break; |
| 1762 | case DW_CC_program: printf ("(program)"); break; |
| 1763 | case DW_CC_nocall: printf ("(nocall)"); break; |
| 1764 | default: |
| 1765 | if (uvalue >= DW_CC_lo_user |
| 1766 | && uvalue <= DW_CC_hi_user) |
| 1767 | printf (_("(user defined)")); |
| 1768 | else |
| 1769 | printf (_("(unknown convention)")); |
| 1770 | } |
| 1771 | break; |
| 1772 | |
| 1773 | case DW_AT_ordering: |
| 1774 | switch (uvalue) |
| 1775 | { |
| 1776 | case -1: printf (_("(undefined)")); break; |
| 1777 | case 0: printf ("(row major)"); break; |
| 1778 | case 1: printf ("(column major)"); break; |
| 1779 | } |
| 1780 | break; |
| 1781 | |
| 1782 | case DW_AT_frame_base: |
| 1783 | have_frame_base = 1; |
| 1784 | case DW_AT_location: |
| 1785 | case DW_AT_string_length: |
| 1786 | case DW_AT_return_addr: |
| 1787 | case DW_AT_data_member_location: |
| 1788 | case DW_AT_vtable_elem_location: |
| 1789 | case DW_AT_segment: |
| 1790 | case DW_AT_static_link: |
| 1791 | case DW_AT_use_location: |
| 1792 | case DW_AT_GNU_call_site_value: |
| 1793 | case DW_AT_GNU_call_site_data_value: |
| 1794 | case DW_AT_GNU_call_site_target: |
| 1795 | case DW_AT_GNU_call_site_target_clobbered: |
| 1796 | if ((dwarf_version < 4 |
| 1797 | && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| 1798 | || form == DW_FORM_sec_offset) |
| 1799 | printf (_("(location list)")); |
| 1800 | /* Fall through. */ |
| 1801 | case DW_AT_allocated: |
| 1802 | case DW_AT_associated: |
| 1803 | case DW_AT_data_location: |
| 1804 | case DW_AT_stride: |
| 1805 | case DW_AT_upper_bound: |
| 1806 | case DW_AT_lower_bound: |
| 1807 | if (block_start) |
| 1808 | { |
| 1809 | int need_frame_base; |
| 1810 | |
| 1811 | printf ("("); |
| 1812 | need_frame_base = decode_location_expression (block_start, |
| 1813 | pointer_size, |
| 1814 | offset_size, |
| 1815 | dwarf_version, |
| 1816 | uvalue, |
| 1817 | cu_offset, section); |
| 1818 | printf (")"); |
| 1819 | if (need_frame_base && !have_frame_base) |
| 1820 | printf (_(" [without DW_AT_frame_base]")); |
| 1821 | } |
| 1822 | break; |
| 1823 | |
| 1824 | case DW_AT_import: |
| 1825 | { |
| 1826 | if (form == DW_FORM_ref_sig8 |
| 1827 | || form == DW_FORM_GNU_ref_alt) |
| 1828 | break; |
| 1829 | |
| 1830 | if (form == DW_FORM_ref1 |
| 1831 | || form == DW_FORM_ref2 |
| 1832 | || form == DW_FORM_ref4 |
| 1833 | || form == DW_FORM_ref_udata) |
| 1834 | uvalue += cu_offset; |
| 1835 | |
| 1836 | if (uvalue >= section->size) |
| 1837 | warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"), |
| 1838 | dwarf_vmatoa ("x", uvalue), |
| 1839 | (unsigned long) (orig_data - section->start)); |
| 1840 | else |
| 1841 | { |
| 1842 | unsigned long abbrev_number; |
| 1843 | abbrev_entry * entry; |
| 1844 | |
| 1845 | abbrev_number = read_leb128 (section->start + uvalue, NULL, 0); |
| 1846 | |
| 1847 | printf (_("[Abbrev Number: %ld"), abbrev_number); |
| 1848 | /* Don't look up abbrev for DW_FORM_ref_addr, as it very often will |
| 1849 | use different abbrev table, and we don't track .debug_info chunks |
| 1850 | yet. */ |
| 1851 | if (form != DW_FORM_ref_addr) |
| 1852 | { |
| 1853 | for (entry = first_abbrev; entry != NULL; entry = entry->next) |
| 1854 | if (entry->entry == abbrev_number) |
| 1855 | break; |
| 1856 | if (entry != NULL) |
| 1857 | printf (" (%s)", get_TAG_name (entry->tag)); |
| 1858 | } |
| 1859 | printf ("]"); |
| 1860 | } |
| 1861 | } |
| 1862 | break; |
| 1863 | |
| 1864 | default: |
| 1865 | break; |
| 1866 | } |
| 1867 | |
| 1868 | return data; |
| 1869 | } |
| 1870 | |
| 1871 | static const char * |
| 1872 | get_AT_name (unsigned long attribute) |
| 1873 | { |
| 1874 | const char *name; |
| 1875 | |
| 1876 | if (attribute == 0) |
| 1877 | return "DW_AT value: 0"; |
| 1878 | |
| 1879 | /* One value is shared by the MIPS and HP extensions: */ |
| 1880 | if (attribute == DW_AT_MIPS_fde) |
| 1881 | return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable"; |
| 1882 | |
| 1883 | name = get_DW_AT_name (attribute); |
| 1884 | |
| 1885 | if (name == NULL) |
| 1886 | { |
| 1887 | static char buffer[100]; |
| 1888 | |
| 1889 | snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), |
| 1890 | attribute); |
| 1891 | return buffer; |
| 1892 | } |
| 1893 | |
| 1894 | return name; |
| 1895 | } |
| 1896 | |
| 1897 | static unsigned char * |
| 1898 | read_and_display_attr (unsigned long attribute, |
| 1899 | unsigned long form, |
| 1900 | unsigned char * data, |
| 1901 | dwarf_vma cu_offset, |
| 1902 | dwarf_vma pointer_size, |
| 1903 | dwarf_vma offset_size, |
| 1904 | int dwarf_version, |
| 1905 | debug_info * debug_info_p, |
| 1906 | int do_loc, |
| 1907 | struct dwarf_section * section) |
| 1908 | { |
| 1909 | if (!do_loc) |
| 1910 | printf (" %-18s:", get_AT_name (attribute)); |
| 1911 | data = read_and_display_attr_value (attribute, form, data, cu_offset, |
| 1912 | pointer_size, offset_size, |
| 1913 | dwarf_version, debug_info_p, |
| 1914 | do_loc, section); |
| 1915 | if (!do_loc) |
| 1916 | printf ("\n"); |
| 1917 | return data; |
| 1918 | } |
| 1919 | |
| 1920 | |
| 1921 | /* Process the contents of a .debug_info section. If do_loc is non-zero |
| 1922 | then we are scanning for location lists and we do not want to display |
| 1923 | anything to the user. If do_types is non-zero, we are processing |
| 1924 | a .debug_types section instead of a .debug_info section. */ |
| 1925 | |
| 1926 | static int |
| 1927 | process_debug_info (struct dwarf_section *section, |
| 1928 | void *file, |
| 1929 | enum dwarf_section_display_enum abbrev_sec, |
| 1930 | int do_loc, |
| 1931 | int do_types) |
| 1932 | { |
| 1933 | unsigned char *start = section->start; |
| 1934 | unsigned char *end = start + section->size; |
| 1935 | unsigned char *section_begin; |
| 1936 | unsigned int unit; |
| 1937 | unsigned int num_units = 0; |
| 1938 | |
| 1939 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1940 | && num_debug_info_entries == 0 |
| 1941 | && ! do_types) |
| 1942 | { |
| 1943 | dwarf_vma length; |
| 1944 | |
| 1945 | /* First scan the section to get the number of comp units. */ |
| 1946 | for (section_begin = start, num_units = 0; section_begin < end; |
| 1947 | num_units ++) |
| 1948 | { |
| 1949 | /* Read the first 4 bytes. For a 32-bit DWARF section, this |
| 1950 | will be the length. For a 64-bit DWARF section, it'll be |
| 1951 | the escape code 0xffffffff followed by an 8 byte length. */ |
| 1952 | length = byte_get (section_begin, 4); |
| 1953 | |
| 1954 | if (length == 0xffffffff) |
| 1955 | { |
| 1956 | length = byte_get (section_begin + 4, 8); |
| 1957 | section_begin += length + 12; |
| 1958 | } |
| 1959 | else if (length >= 0xfffffff0 && length < 0xffffffff) |
| 1960 | { |
| 1961 | warn (_("Reserved length value (0x%s) found in section %s\n"), |
| 1962 | dwarf_vmatoa ("x", length), section->name); |
| 1963 | return 0; |
| 1964 | } |
| 1965 | else |
| 1966 | section_begin += length + 4; |
| 1967 | |
| 1968 | /* Negative values are illegal, they may even cause infinite |
| 1969 | looping. This can happen if we can't accurately apply |
| 1970 | relocations to an object file. */ |
| 1971 | if ((signed long) length <= 0) |
| 1972 | { |
| 1973 | warn (_("Corrupt unit length (0x%s) found in section %s\n"), |
| 1974 | dwarf_vmatoa ("x", length), section->name); |
| 1975 | return 0; |
| 1976 | } |
| 1977 | } |
| 1978 | |
| 1979 | if (num_units == 0) |
| 1980 | { |
| 1981 | error (_("No comp units in %s section ?"), section->name); |
| 1982 | return 0; |
| 1983 | } |
| 1984 | |
| 1985 | /* Then allocate an array to hold the information. */ |
| 1986 | debug_information = (debug_info *) cmalloc (num_units, |
| 1987 | sizeof (* debug_information)); |
| 1988 | if (debug_information == NULL) |
| 1989 | { |
| 1990 | error (_("Not enough memory for a debug info array of %u entries"), |
| 1991 | num_units); |
| 1992 | return 0; |
| 1993 | } |
| 1994 | } |
| 1995 | |
| 1996 | if (!do_loc) |
| 1997 | { |
| 1998 | if (dwarf_start_die == 0) |
| 1999 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 2000 | |
| 2001 | load_debug_section (str, file); |
| 2002 | load_debug_section (str_dwo, file); |
| 2003 | load_debug_section (str_index, file); |
| 2004 | load_debug_section (str_index_dwo, file); |
| 2005 | load_debug_section (debug_addr, file); |
| 2006 | } |
| 2007 | |
| 2008 | load_debug_section (abbrev_sec, file); |
| 2009 | if (debug_displays [abbrev_sec].section.start == NULL) |
| 2010 | { |
| 2011 | warn (_("Unable to locate %s section!\n"), |
| 2012 | debug_displays [abbrev_sec].section.name); |
| 2013 | return 0; |
| 2014 | } |
| 2015 | |
| 2016 | for (section_begin = start, unit = 0; start < end; unit++) |
| 2017 | { |
| 2018 | DWARF2_Internal_CompUnit compunit; |
| 2019 | unsigned char *hdrptr; |
| 2020 | unsigned char *tags; |
| 2021 | int level, last_level, saved_level; |
| 2022 | dwarf_vma cu_offset; |
| 2023 | int offset_size; |
| 2024 | int initial_length_size; |
| 2025 | dwarf_vma signature_high = 0; |
| 2026 | dwarf_vma signature_low = 0; |
| 2027 | dwarf_vma type_offset = 0; |
| 2028 | |
| 2029 | hdrptr = start; |
| 2030 | |
| 2031 | compunit.cu_length = byte_get (hdrptr, 4); |
| 2032 | hdrptr += 4; |
| 2033 | |
| 2034 | if (compunit.cu_length == 0xffffffff) |
| 2035 | { |
| 2036 | compunit.cu_length = byte_get (hdrptr, 8); |
| 2037 | hdrptr += 8; |
| 2038 | offset_size = 8; |
| 2039 | initial_length_size = 12; |
| 2040 | } |
| 2041 | else |
| 2042 | { |
| 2043 | offset_size = 4; |
| 2044 | initial_length_size = 4; |
| 2045 | } |
| 2046 | |
| 2047 | compunit.cu_version = byte_get (hdrptr, 2); |
| 2048 | hdrptr += 2; |
| 2049 | |
| 2050 | cu_offset = start - section_begin; |
| 2051 | |
| 2052 | compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size); |
| 2053 | hdrptr += offset_size; |
| 2054 | |
| 2055 | compunit.cu_pointer_size = byte_get (hdrptr, 1); |
| 2056 | hdrptr += 1; |
| 2057 | |
| 2058 | if (do_types) |
| 2059 | { |
| 2060 | byte_get_64 (hdrptr, &signature_high, &signature_low); |
| 2061 | hdrptr += 8; |
| 2062 | type_offset = byte_get (hdrptr, offset_size); |
| 2063 | hdrptr += offset_size; |
| 2064 | } |
| 2065 | |
| 2066 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 2067 | && num_debug_info_entries == 0 |
| 2068 | && ! do_types) |
| 2069 | { |
| 2070 | debug_information [unit].cu_offset = cu_offset; |
| 2071 | debug_information [unit].pointer_size |
| 2072 | = compunit.cu_pointer_size; |
| 2073 | debug_information [unit].offset_size = offset_size; |
| 2074 | debug_information [unit].dwarf_version = compunit.cu_version; |
| 2075 | debug_information [unit].base_address = 0; |
| 2076 | debug_information [unit].addr_base = DEBUG_INFO_UNAVAILABLE; |
| 2077 | debug_information [unit].ranges_base = DEBUG_INFO_UNAVAILABLE; |
| 2078 | debug_information [unit].loc_offsets = NULL; |
| 2079 | debug_information [unit].have_frame_base = NULL; |
| 2080 | debug_information [unit].max_loc_offsets = 0; |
| 2081 | debug_information [unit].num_loc_offsets = 0; |
| 2082 | debug_information [unit].range_lists = NULL; |
| 2083 | debug_information [unit].max_range_lists= 0; |
| 2084 | debug_information [unit].num_range_lists = 0; |
| 2085 | } |
| 2086 | |
| 2087 | if (!do_loc && dwarf_start_die == 0) |
| 2088 | { |
| 2089 | printf (_(" Compilation Unit @ offset 0x%s:\n"), |
| 2090 | dwarf_vmatoa ("x", cu_offset)); |
| 2091 | printf (_(" Length: 0x%s (%s)\n"), |
| 2092 | dwarf_vmatoa ("x", compunit.cu_length), |
| 2093 | offset_size == 8 ? "64-bit" : "32-bit"); |
| 2094 | printf (_(" Version: %d\n"), compunit.cu_version); |
| 2095 | printf (_(" Abbrev Offset: 0x%s\n"), |
| 2096 | dwarf_vmatoa ("x", compunit.cu_abbrev_offset)); |
| 2097 | printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size); |
| 2098 | if (do_types) |
| 2099 | { |
| 2100 | char buf[64]; |
| 2101 | |
| 2102 | printf (_(" Signature: 0x%s\n"), |
| 2103 | dwarf_vmatoa64 (signature_high, signature_low, |
| 2104 | buf, sizeof (buf))); |
| 2105 | printf (_(" Type Offset: 0x%s\n"), |
| 2106 | dwarf_vmatoa ("x", type_offset)); |
| 2107 | } |
| 2108 | } |
| 2109 | |
| 2110 | if (cu_offset + compunit.cu_length + initial_length_size |
| 2111 | > section->size) |
| 2112 | { |
| 2113 | warn (_("Debug info is corrupted, length of CU at %s" |
| 2114 | " extends beyond end of section (length = %s)\n"), |
| 2115 | dwarf_vmatoa ("x", cu_offset), |
| 2116 | dwarf_vmatoa ("x", compunit.cu_length)); |
| 2117 | break; |
| 2118 | } |
| 2119 | tags = hdrptr; |
| 2120 | start += compunit.cu_length + initial_length_size; |
| 2121 | |
| 2122 | if (compunit.cu_version != 2 |
| 2123 | && compunit.cu_version != 3 |
| 2124 | && compunit.cu_version != 4) |
| 2125 | { |
| 2126 | warn (_("CU at offset %s contains corrupt or " |
| 2127 | "unsupported version number: %d.\n"), |
| 2128 | dwarf_vmatoa ("x", cu_offset), compunit.cu_version); |
| 2129 | continue; |
| 2130 | } |
| 2131 | |
| 2132 | free_abbrevs (); |
| 2133 | |
| 2134 | /* Process the abbrevs used by this compilation unit. DWARF |
| 2135 | sections under Mach-O have non-zero addresses. */ |
| 2136 | if (compunit.cu_abbrev_offset >= debug_displays [abbrev_sec].section.size) |
| 2137 | warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"), |
| 2138 | (unsigned long) compunit.cu_abbrev_offset, |
| 2139 | (unsigned long) debug_displays [abbrev_sec].section.size); |
| 2140 | else |
| 2141 | process_abbrev_section |
| 2142 | ((unsigned char *) debug_displays [abbrev_sec].section.start |
| 2143 | + compunit.cu_abbrev_offset, |
| 2144 | (unsigned char *) debug_displays [abbrev_sec].section.start |
| 2145 | + debug_displays [abbrev_sec].section.size); |
| 2146 | |
| 2147 | level = 0; |
| 2148 | last_level = level; |
| 2149 | saved_level = -1; |
| 2150 | while (tags < start) |
| 2151 | { |
| 2152 | unsigned int bytes_read; |
| 2153 | unsigned long abbrev_number; |
| 2154 | unsigned long die_offset; |
| 2155 | abbrev_entry *entry; |
| 2156 | abbrev_attr *attr; |
| 2157 | int do_printing = 1; |
| 2158 | |
| 2159 | die_offset = tags - section_begin; |
| 2160 | |
| 2161 | abbrev_number = read_leb128 (tags, & bytes_read, 0); |
| 2162 | tags += bytes_read; |
| 2163 | |
| 2164 | /* A null DIE marks the end of a list of siblings or it may also be |
| 2165 | a section padding. */ |
| 2166 | if (abbrev_number == 0) |
| 2167 | { |
| 2168 | /* Check if it can be a section padding for the last CU. */ |
| 2169 | if (level == 0 && start == end) |
| 2170 | { |
| 2171 | unsigned char *chk; |
| 2172 | |
| 2173 | for (chk = tags; chk < start; chk++) |
| 2174 | if (*chk != 0) |
| 2175 | break; |
| 2176 | if (chk == start) |
| 2177 | break; |
| 2178 | } |
| 2179 | |
| 2180 | if (!do_loc && die_offset >= dwarf_start_die) |
| 2181 | printf (_(" <%d><%lx>: Abbrev Number: 0\n"), |
| 2182 | level, die_offset); |
| 2183 | |
| 2184 | --level; |
| 2185 | if (level < 0) |
| 2186 | { |
| 2187 | static unsigned num_bogus_warns = 0; |
| 2188 | |
| 2189 | if (num_bogus_warns < 3) |
| 2190 | { |
| 2191 | warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"), |
| 2192 | die_offset, section->name); |
| 2193 | num_bogus_warns ++; |
| 2194 | if (num_bogus_warns == 3) |
| 2195 | warn (_("Further warnings about bogus end-of-sibling markers suppressed\n")); |
| 2196 | } |
| 2197 | } |
| 2198 | if (dwarf_start_die != 0 && level < saved_level) |
| 2199 | return 1; |
| 2200 | continue; |
| 2201 | } |
| 2202 | |
| 2203 | if (!do_loc) |
| 2204 | { |
| 2205 | if (dwarf_start_die != 0 && die_offset < dwarf_start_die) |
| 2206 | do_printing = 0; |
| 2207 | else |
| 2208 | { |
| 2209 | if (dwarf_start_die != 0 && die_offset == dwarf_start_die) |
| 2210 | saved_level = level; |
| 2211 | do_printing = (dwarf_cutoff_level == -1 |
| 2212 | || level < dwarf_cutoff_level); |
| 2213 | if (do_printing) |
| 2214 | printf (_(" <%d><%lx>: Abbrev Number: %lu"), |
| 2215 | level, die_offset, abbrev_number); |
| 2216 | else if (dwarf_cutoff_level == -1 |
| 2217 | || last_level < dwarf_cutoff_level) |
| 2218 | printf (_(" <%d><%lx>: ...\n"), level, die_offset); |
| 2219 | last_level = level; |
| 2220 | } |
| 2221 | } |
| 2222 | |
| 2223 | /* Scan through the abbreviation list until we reach the |
| 2224 | correct entry. */ |
| 2225 | for (entry = first_abbrev; |
| 2226 | entry && entry->entry != abbrev_number; |
| 2227 | entry = entry->next) |
| 2228 | continue; |
| 2229 | |
| 2230 | if (entry == NULL) |
| 2231 | { |
| 2232 | if (!do_loc && do_printing) |
| 2233 | { |
| 2234 | printf ("\n"); |
| 2235 | fflush (stdout); |
| 2236 | } |
| 2237 | warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"), |
| 2238 | die_offset, abbrev_number); |
| 2239 | return 0; |
| 2240 | } |
| 2241 | |
| 2242 | if (!do_loc && do_printing) |
| 2243 | printf (" (%s)\n", get_TAG_name (entry->tag)); |
| 2244 | |
| 2245 | switch (entry->tag) |
| 2246 | { |
| 2247 | default: |
| 2248 | need_base_address = 0; |
| 2249 | break; |
| 2250 | case DW_TAG_compile_unit: |
| 2251 | need_base_address = 1; |
| 2252 | break; |
| 2253 | case DW_TAG_entry_point: |
| 2254 | case DW_TAG_subprogram: |
| 2255 | need_base_address = 0; |
| 2256 | /* Assuming that there is no DW_AT_frame_base. */ |
| 2257 | have_frame_base = 0; |
| 2258 | break; |
| 2259 | } |
| 2260 | |
| 2261 | for (attr = entry->first_attr; |
| 2262 | attr && attr->attribute; |
| 2263 | attr = attr->next) |
| 2264 | { |
| 2265 | debug_info *arg; |
| 2266 | |
| 2267 | if (! do_loc && do_printing) |
| 2268 | /* Show the offset from where the tag was extracted. */ |
| 2269 | printf (" <%lx>", (unsigned long)(tags - section_begin)); |
| 2270 | |
| 2271 | arg = debug_information; |
| 2272 | if (debug_information) |
| 2273 | arg += unit; |
| 2274 | |
| 2275 | tags = read_and_display_attr (attr->attribute, |
| 2276 | attr->form, |
| 2277 | tags, cu_offset, |
| 2278 | compunit.cu_pointer_size, |
| 2279 | offset_size, |
| 2280 | compunit.cu_version, |
| 2281 | arg, |
| 2282 | do_loc || ! do_printing, section); |
| 2283 | } |
| 2284 | |
| 2285 | if (entry->children) |
| 2286 | ++level; |
| 2287 | } |
| 2288 | } |
| 2289 | |
| 2290 | /* Set num_debug_info_entries here so that it can be used to check if |
| 2291 | we need to process .debug_loc and .debug_ranges sections. */ |
| 2292 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 2293 | && num_debug_info_entries == 0 |
| 2294 | && ! do_types) |
| 2295 | num_debug_info_entries = num_units; |
| 2296 | |
| 2297 | if (!do_loc) |
| 2298 | printf ("\n"); |
| 2299 | |
| 2300 | return 1; |
| 2301 | } |
| 2302 | |
| 2303 | /* Locate and scan the .debug_info section in the file and record the pointer |
| 2304 | sizes and offsets for the compilation units in it. Usually an executable |
| 2305 | will have just one pointer size, but this is not guaranteed, and so we try |
| 2306 | not to make any assumptions. Returns zero upon failure, or the number of |
| 2307 | compilation units upon success. */ |
| 2308 | |
| 2309 | static unsigned int |
| 2310 | load_debug_info (void * file) |
| 2311 | { |
| 2312 | /* Reset the last pointer size so that we can issue correct error |
| 2313 | messages if we are displaying the contents of more than one section. */ |
| 2314 | last_pointer_size = 0; |
| 2315 | warned_about_missing_comp_units = FALSE; |
| 2316 | |
| 2317 | /* If we have already tried and failed to load the .debug_info |
| 2318 | section then do not bother to repeat the task. */ |
| 2319 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
| 2320 | return 0; |
| 2321 | |
| 2322 | /* If we already have the information there is nothing else to do. */ |
| 2323 | if (num_debug_info_entries > 0) |
| 2324 | return num_debug_info_entries; |
| 2325 | |
| 2326 | if (load_debug_section (info, file) |
| 2327 | && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0)) |
| 2328 | return num_debug_info_entries; |
| 2329 | else if (load_debug_section (info_dwo, file) |
| 2330 | && process_debug_info (&debug_displays [info_dwo].section, file, |
| 2331 | abbrev_dwo, 1, 0)) |
| 2332 | return num_debug_info_entries; |
| 2333 | |
| 2334 | num_debug_info_entries = DEBUG_INFO_UNAVAILABLE; |
| 2335 | return 0; |
| 2336 | } |
| 2337 | |
| 2338 | static int |
| 2339 | display_debug_lines_raw (struct dwarf_section *section, |
| 2340 | unsigned char *data, |
| 2341 | unsigned char *end) |
| 2342 | { |
| 2343 | unsigned char *start = section->start; |
| 2344 | |
| 2345 | printf (_("Raw dump of debug contents of section %s:\n\n"), |
| 2346 | section->name); |
| 2347 | |
| 2348 | while (data < end) |
| 2349 | { |
| 2350 | DWARF2_Internal_LineInfo linfo; |
| 2351 | unsigned char *standard_opcodes; |
| 2352 | unsigned char *end_of_sequence; |
| 2353 | unsigned char *hdrptr; |
| 2354 | unsigned long hdroff; |
| 2355 | int initial_length_size; |
| 2356 | int offset_size; |
| 2357 | int i; |
| 2358 | |
| 2359 | hdrptr = data; |
| 2360 | hdroff = hdrptr - start; |
| 2361 | |
| 2362 | /* Check the length of the block. */ |
| 2363 | linfo.li_length = byte_get (hdrptr, 4); |
| 2364 | hdrptr += 4; |
| 2365 | |
| 2366 | if (linfo.li_length == 0xffffffff) |
| 2367 | { |
| 2368 | /* This section is 64-bit DWARF 3. */ |
| 2369 | linfo.li_length = byte_get (hdrptr, 8); |
| 2370 | hdrptr += 8; |
| 2371 | offset_size = 8; |
| 2372 | initial_length_size = 12; |
| 2373 | } |
| 2374 | else |
| 2375 | { |
| 2376 | offset_size = 4; |
| 2377 | initial_length_size = 4; |
| 2378 | } |
| 2379 | |
| 2380 | if (linfo.li_length + initial_length_size > section->size) |
| 2381 | { |
| 2382 | warn |
| 2383 | (_("The information in section %s appears to be corrupt - the section is too small\n"), |
| 2384 | section->name); |
| 2385 | return 0; |
| 2386 | } |
| 2387 | |
| 2388 | /* Check its version number. */ |
| 2389 | linfo.li_version = byte_get (hdrptr, 2); |
| 2390 | hdrptr += 2; |
| 2391 | if (linfo.li_version != 2 |
| 2392 | && linfo.li_version != 3 |
| 2393 | && linfo.li_version != 4) |
| 2394 | { |
| 2395 | warn (_("Only DWARF version 2, 3 and 4 line info is currently supported.\n")); |
| 2396 | return 0; |
| 2397 | } |
| 2398 | |
| 2399 | linfo.li_prologue_length = byte_get (hdrptr, offset_size); |
| 2400 | hdrptr += offset_size; |
| 2401 | linfo.li_min_insn_length = byte_get (hdrptr, 1); |
| 2402 | hdrptr++; |
| 2403 | if (linfo.li_version >= 4) |
| 2404 | { |
| 2405 | linfo.li_max_ops_per_insn = byte_get (hdrptr, 1); |
| 2406 | hdrptr++; |
| 2407 | if (linfo.li_max_ops_per_insn == 0) |
| 2408 | { |
| 2409 | warn (_("Invalid maximum operations per insn.\n")); |
| 2410 | return 0; |
| 2411 | } |
| 2412 | } |
| 2413 | else |
| 2414 | linfo.li_max_ops_per_insn = 1; |
| 2415 | linfo.li_default_is_stmt = byte_get (hdrptr, 1); |
| 2416 | hdrptr++; |
| 2417 | linfo.li_line_base = byte_get (hdrptr, 1); |
| 2418 | hdrptr++; |
| 2419 | linfo.li_line_range = byte_get (hdrptr, 1); |
| 2420 | hdrptr++; |
| 2421 | linfo.li_opcode_base = byte_get (hdrptr, 1); |
| 2422 | hdrptr++; |
| 2423 | |
| 2424 | /* Sign extend the line base field. */ |
| 2425 | linfo.li_line_base <<= 24; |
| 2426 | linfo.li_line_base >>= 24; |
| 2427 | |
| 2428 | printf (_(" Offset: 0x%lx\n"), hdroff); |
| 2429 | printf (_(" Length: %ld\n"), (long) linfo.li_length); |
| 2430 | printf (_(" DWARF Version: %d\n"), linfo.li_version); |
| 2431 | printf (_(" Prologue Length: %d\n"), linfo.li_prologue_length); |
| 2432 | printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length); |
| 2433 | if (linfo.li_version >= 4) |
| 2434 | printf (_(" Maximum Ops per Instruction: %d\n"), linfo.li_max_ops_per_insn); |
| 2435 | printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt); |
| 2436 | printf (_(" Line Base: %d\n"), linfo.li_line_base); |
| 2437 | printf (_(" Line Range: %d\n"), linfo.li_line_range); |
| 2438 | printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base); |
| 2439 | |
| 2440 | end_of_sequence = data + linfo.li_length + initial_length_size; |
| 2441 | |
| 2442 | reset_state_machine (linfo.li_default_is_stmt); |
| 2443 | |
| 2444 | /* Display the contents of the Opcodes table. */ |
| 2445 | standard_opcodes = hdrptr; |
| 2446 | |
| 2447 | printf (_("\n Opcodes:\n")); |
| 2448 | |
| 2449 | for (i = 1; i < linfo.li_opcode_base; i++) |
| 2450 | printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); |
| 2451 | |
| 2452 | /* Display the contents of the Directory table. */ |
| 2453 | data = standard_opcodes + linfo.li_opcode_base - 1; |
| 2454 | |
| 2455 | if (*data == 0) |
| 2456 | printf (_("\n The Directory Table is empty.\n")); |
| 2457 | else |
| 2458 | { |
| 2459 | printf (_("\n The Directory Table:\n")); |
| 2460 | |
| 2461 | while (*data != 0) |
| 2462 | { |
| 2463 | printf (" %s\n", data); |
| 2464 | |
| 2465 | data += strlen ((char *) data) + 1; |
| 2466 | } |
| 2467 | } |
| 2468 | |
| 2469 | /* Skip the NUL at the end of the table. */ |
| 2470 | data++; |
| 2471 | |
| 2472 | /* Display the contents of the File Name table. */ |
| 2473 | if (*data == 0) |
| 2474 | printf (_("\n The File Name Table is empty.\n")); |
| 2475 | else |
| 2476 | { |
| 2477 | printf (_("\n The File Name Table:\n")); |
| 2478 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); |
| 2479 | |
| 2480 | while (*data != 0) |
| 2481 | { |
| 2482 | unsigned char *name; |
| 2483 | unsigned int bytes_read; |
| 2484 | |
| 2485 | printf (" %d\t", ++state_machine_regs.last_file_entry); |
| 2486 | name = data; |
| 2487 | |
| 2488 | data += strlen ((char *) data) + 1; |
| 2489 | |
| 2490 | printf ("%s\t", |
| 2491 | dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0))); |
| 2492 | data += bytes_read; |
| 2493 | printf ("%s\t", |
| 2494 | dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0))); |
| 2495 | data += bytes_read; |
| 2496 | printf ("%s\t", |
| 2497 | dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0))); |
| 2498 | data += bytes_read; |
| 2499 | printf ("%s\n", name); |
| 2500 | } |
| 2501 | } |
| 2502 | |
| 2503 | /* Skip the NUL at the end of the table. */ |
| 2504 | data++; |
| 2505 | |
| 2506 | /* Now display the statements. */ |
| 2507 | printf (_("\n Line Number Statements:\n")); |
| 2508 | |
| 2509 | while (data < end_of_sequence) |
| 2510 | { |
| 2511 | unsigned char op_code; |
| 2512 | dwarf_signed_vma adv; |
| 2513 | dwarf_vma uladv; |
| 2514 | unsigned int bytes_read; |
| 2515 | |
| 2516 | op_code = *data++; |
| 2517 | |
| 2518 | if (op_code >= linfo.li_opcode_base) |
| 2519 | { |
| 2520 | op_code -= linfo.li_opcode_base; |
| 2521 | uladv = (op_code / linfo.li_line_range); |
| 2522 | if (linfo.li_max_ops_per_insn == 1) |
| 2523 | { |
| 2524 | uladv *= linfo.li_min_insn_length; |
| 2525 | state_machine_regs.address += uladv; |
| 2526 | printf (_(" Special opcode %d: " |
| 2527 | "advance Address by %s to 0x%s"), |
| 2528 | op_code, dwarf_vmatoa ("u", uladv), |
| 2529 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 2530 | } |
| 2531 | else |
| 2532 | { |
| 2533 | state_machine_regs.address |
| 2534 | += ((state_machine_regs.op_index + uladv) |
| 2535 | / linfo.li_max_ops_per_insn) |
| 2536 | * linfo.li_min_insn_length; |
| 2537 | state_machine_regs.op_index |
| 2538 | = (state_machine_regs.op_index + uladv) |
| 2539 | % linfo.li_max_ops_per_insn; |
| 2540 | printf (_(" Special opcode %d: " |
| 2541 | "advance Address by %s to 0x%s[%d]"), |
| 2542 | op_code, dwarf_vmatoa ("u", uladv), |
| 2543 | dwarf_vmatoa ("x", state_machine_regs.address), |
| 2544 | state_machine_regs.op_index); |
| 2545 | } |
| 2546 | adv = (op_code % linfo.li_line_range) + linfo.li_line_base; |
| 2547 | state_machine_regs.line += adv; |
| 2548 | printf (_(" and Line by %s to %d\n"), |
| 2549 | dwarf_vmatoa ("d", adv), state_machine_regs.line); |
| 2550 | } |
| 2551 | else switch (op_code) |
| 2552 | { |
| 2553 | case DW_LNS_extended_op: |
| 2554 | data += process_extended_line_op (data, linfo.li_default_is_stmt); |
| 2555 | break; |
| 2556 | |
| 2557 | case DW_LNS_copy: |
| 2558 | printf (_(" Copy\n")); |
| 2559 | break; |
| 2560 | |
| 2561 | case DW_LNS_advance_pc: |
| 2562 | uladv = read_leb128 (data, & bytes_read, 0); |
| 2563 | data += bytes_read; |
| 2564 | if (linfo.li_max_ops_per_insn == 1) |
| 2565 | { |
| 2566 | uladv *= linfo.li_min_insn_length; |
| 2567 | state_machine_regs.address += uladv; |
| 2568 | printf (_(" Advance PC by %s to 0x%s\n"), |
| 2569 | dwarf_vmatoa ("u", uladv), |
| 2570 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 2571 | } |
| 2572 | else |
| 2573 | { |
| 2574 | state_machine_regs.address |
| 2575 | += ((state_machine_regs.op_index + uladv) |
| 2576 | / linfo.li_max_ops_per_insn) |
| 2577 | * linfo.li_min_insn_length; |
| 2578 | state_machine_regs.op_index |
| 2579 | = (state_machine_regs.op_index + uladv) |
| 2580 | % linfo.li_max_ops_per_insn; |
| 2581 | printf (_(" Advance PC by %s to 0x%s[%d]\n"), |
| 2582 | dwarf_vmatoa ("u", uladv), |
| 2583 | dwarf_vmatoa ("x", state_machine_regs.address), |
| 2584 | state_machine_regs.op_index); |
| 2585 | } |
| 2586 | break; |
| 2587 | |
| 2588 | case DW_LNS_advance_line: |
| 2589 | adv = read_sleb128 (data, & bytes_read); |
| 2590 | data += bytes_read; |
| 2591 | state_machine_regs.line += adv; |
| 2592 | printf (_(" Advance Line by %s to %d\n"), |
| 2593 | dwarf_vmatoa ("d", adv), |
| 2594 | state_machine_regs.line); |
| 2595 | break; |
| 2596 | |
| 2597 | case DW_LNS_set_file: |
| 2598 | adv = read_leb128 (data, & bytes_read, 0); |
| 2599 | data += bytes_read; |
| 2600 | printf (_(" Set File Name to entry %s in the File Name Table\n"), |
| 2601 | dwarf_vmatoa ("d", adv)); |
| 2602 | state_machine_regs.file = adv; |
| 2603 | break; |
| 2604 | |
| 2605 | case DW_LNS_set_column: |
| 2606 | uladv = read_leb128 (data, & bytes_read, 0); |
| 2607 | data += bytes_read; |
| 2608 | printf (_(" Set column to %s\n"), |
| 2609 | dwarf_vmatoa ("u", uladv)); |
| 2610 | state_machine_regs.column = uladv; |
| 2611 | break; |
| 2612 | |
| 2613 | case DW_LNS_negate_stmt: |
| 2614 | adv = state_machine_regs.is_stmt; |
| 2615 | adv = ! adv; |
| 2616 | printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv)); |
| 2617 | state_machine_regs.is_stmt = adv; |
| 2618 | break; |
| 2619 | |
| 2620 | case DW_LNS_set_basic_block: |
| 2621 | printf (_(" Set basic block\n")); |
| 2622 | state_machine_regs.basic_block = 1; |
| 2623 | break; |
| 2624 | |
| 2625 | case DW_LNS_const_add_pc: |
| 2626 | uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); |
| 2627 | if (linfo.li_max_ops_per_insn) |
| 2628 | { |
| 2629 | uladv *= linfo.li_min_insn_length; |
| 2630 | state_machine_regs.address += uladv; |
| 2631 | printf (_(" Advance PC by constant %s to 0x%s\n"), |
| 2632 | dwarf_vmatoa ("u", uladv), |
| 2633 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 2634 | } |
| 2635 | else |
| 2636 | { |
| 2637 | state_machine_regs.address |
| 2638 | += ((state_machine_regs.op_index + uladv) |
| 2639 | / linfo.li_max_ops_per_insn) |
| 2640 | * linfo.li_min_insn_length; |
| 2641 | state_machine_regs.op_index |
| 2642 | = (state_machine_regs.op_index + uladv) |
| 2643 | % linfo.li_max_ops_per_insn; |
| 2644 | printf (_(" Advance PC by constant %s to 0x%s[%d]\n"), |
| 2645 | dwarf_vmatoa ("u", uladv), |
| 2646 | dwarf_vmatoa ("x", state_machine_regs.address), |
| 2647 | state_machine_regs.op_index); |
| 2648 | } |
| 2649 | break; |
| 2650 | |
| 2651 | case DW_LNS_fixed_advance_pc: |
| 2652 | uladv = byte_get (data, 2); |
| 2653 | data += 2; |
| 2654 | state_machine_regs.address += uladv; |
| 2655 | state_machine_regs.op_index = 0; |
| 2656 | printf (_(" Advance PC by fixed size amount %s to 0x%s\n"), |
| 2657 | dwarf_vmatoa ("u", uladv), |
| 2658 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 2659 | break; |
| 2660 | |
| 2661 | case DW_LNS_set_prologue_end: |
| 2662 | printf (_(" Set prologue_end to true\n")); |
| 2663 | break; |
| 2664 | |
| 2665 | case DW_LNS_set_epilogue_begin: |
| 2666 | printf (_(" Set epilogue_begin to true\n")); |
| 2667 | break; |
| 2668 | |
| 2669 | case DW_LNS_set_isa: |
| 2670 | uladv = read_leb128 (data, & bytes_read, 0); |
| 2671 | data += bytes_read; |
| 2672 | printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv)); |
| 2673 | break; |
| 2674 | |
| 2675 | default: |
| 2676 | printf (_(" Unknown opcode %d with operands: "), op_code); |
| 2677 | |
| 2678 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) |
| 2679 | { |
| 2680 | printf ("0x%s%s", dwarf_vmatoa ("x", read_leb128 (data, |
| 2681 | &bytes_read, 0)), |
| 2682 | i == 1 ? "" : ", "); |
| 2683 | data += bytes_read; |
| 2684 | } |
| 2685 | putchar ('\n'); |
| 2686 | break; |
| 2687 | } |
| 2688 | } |
| 2689 | putchar ('\n'); |
| 2690 | } |
| 2691 | |
| 2692 | return 1; |
| 2693 | } |
| 2694 | |
| 2695 | typedef struct |
| 2696 | { |
| 2697 | unsigned char *name; |
| 2698 | unsigned int directory_index; |
| 2699 | unsigned int modification_date; |
| 2700 | unsigned int length; |
| 2701 | } File_Entry; |
| 2702 | |
| 2703 | /* Output a decoded representation of the .debug_line section. */ |
| 2704 | |
| 2705 | static int |
| 2706 | display_debug_lines_decoded (struct dwarf_section *section, |
| 2707 | unsigned char *data, |
| 2708 | unsigned char *end) |
| 2709 | { |
| 2710 | printf (_("Decoded dump of debug contents of section %s:\n\n"), |
| 2711 | section->name); |
| 2712 | |
| 2713 | while (data < end) |
| 2714 | { |
| 2715 | /* This loop amounts to one iteration per compilation unit. */ |
| 2716 | DWARF2_Internal_LineInfo linfo; |
| 2717 | unsigned char *standard_opcodes; |
| 2718 | unsigned char *end_of_sequence; |
| 2719 | unsigned char *hdrptr; |
| 2720 | int initial_length_size; |
| 2721 | int offset_size; |
| 2722 | int i; |
| 2723 | File_Entry *file_table = NULL; |
| 2724 | unsigned int n_files = 0; |
| 2725 | unsigned char **directory_table = NULL; |
| 2726 | unsigned int n_directories = 0; |
| 2727 | |
| 2728 | hdrptr = data; |
| 2729 | |
| 2730 | /* Extract information from the Line Number Program Header. |
| 2731 | (section 6.2.4 in the Dwarf3 doc). */ |
| 2732 | |
| 2733 | /* Get the length of this CU's line number information block. */ |
| 2734 | linfo.li_length = byte_get (hdrptr, 4); |
| 2735 | hdrptr += 4; |
| 2736 | |
| 2737 | if (linfo.li_length == 0xffffffff) |
| 2738 | { |
| 2739 | /* This section is 64-bit DWARF 3. */ |
| 2740 | linfo.li_length = byte_get (hdrptr, 8); |
| 2741 | hdrptr += 8; |
| 2742 | offset_size = 8; |
| 2743 | initial_length_size = 12; |
| 2744 | } |
| 2745 | else |
| 2746 | { |
| 2747 | offset_size = 4; |
| 2748 | initial_length_size = 4; |
| 2749 | } |
| 2750 | |
| 2751 | if (linfo.li_length + initial_length_size > section->size) |
| 2752 | { |
| 2753 | warn (_("The line info appears to be corrupt - " |
| 2754 | "the section is too small\n")); |
| 2755 | return 0; |
| 2756 | } |
| 2757 | |
| 2758 | /* Get this CU's Line Number Block version number. */ |
| 2759 | linfo.li_version = byte_get (hdrptr, 2); |
| 2760 | hdrptr += 2; |
| 2761 | if (linfo.li_version != 2 |
| 2762 | && linfo.li_version != 3 |
| 2763 | && linfo.li_version != 4) |
| 2764 | { |
| 2765 | warn (_("Only DWARF version 2, 3 and 4 line info is currently " |
| 2766 | "supported.\n")); |
| 2767 | return 0; |
| 2768 | } |
| 2769 | |
| 2770 | linfo.li_prologue_length = byte_get (hdrptr, offset_size); |
| 2771 | hdrptr += offset_size; |
| 2772 | linfo.li_min_insn_length = byte_get (hdrptr, 1); |
| 2773 | hdrptr++; |
| 2774 | if (linfo.li_version >= 4) |
| 2775 | { |
| 2776 | linfo.li_max_ops_per_insn = byte_get (hdrptr, 1); |
| 2777 | hdrptr++; |
| 2778 | if (linfo.li_max_ops_per_insn == 0) |
| 2779 | { |
| 2780 | warn (_("Invalid maximum operations per insn.\n")); |
| 2781 | return 0; |
| 2782 | } |
| 2783 | } |
| 2784 | else |
| 2785 | linfo.li_max_ops_per_insn = 1; |
| 2786 | linfo.li_default_is_stmt = byte_get (hdrptr, 1); |
| 2787 | hdrptr++; |
| 2788 | linfo.li_line_base = byte_get (hdrptr, 1); |
| 2789 | hdrptr++; |
| 2790 | linfo.li_line_range = byte_get (hdrptr, 1); |
| 2791 | hdrptr++; |
| 2792 | linfo.li_opcode_base = byte_get (hdrptr, 1); |
| 2793 | hdrptr++; |
| 2794 | |
| 2795 | /* Sign extend the line base field. */ |
| 2796 | linfo.li_line_base <<= 24; |
| 2797 | linfo.li_line_base >>= 24; |
| 2798 | |
| 2799 | /* Find the end of this CU's Line Number Information Block. */ |
| 2800 | end_of_sequence = data + linfo.li_length + initial_length_size; |
| 2801 | |
| 2802 | reset_state_machine (linfo.li_default_is_stmt); |
| 2803 | |
| 2804 | /* Save a pointer to the contents of the Opcodes table. */ |
| 2805 | standard_opcodes = hdrptr; |
| 2806 | |
| 2807 | /* Traverse the Directory table just to count entries. */ |
| 2808 | data = standard_opcodes + linfo.li_opcode_base - 1; |
| 2809 | if (*data != 0) |
| 2810 | { |
| 2811 | unsigned char *ptr_directory_table = data; |
| 2812 | |
| 2813 | while (*data != 0) |
| 2814 | { |
| 2815 | data += strlen ((char *) data) + 1; |
| 2816 | n_directories++; |
| 2817 | } |
| 2818 | |
| 2819 | /* Go through the directory table again to save the directories. */ |
| 2820 | directory_table = (unsigned char **) |
| 2821 | xmalloc (n_directories * sizeof (unsigned char *)); |
| 2822 | |
| 2823 | i = 0; |
| 2824 | while (*ptr_directory_table != 0) |
| 2825 | { |
| 2826 | directory_table[i] = ptr_directory_table; |
| 2827 | ptr_directory_table += strlen ((char *) ptr_directory_table) + 1; |
| 2828 | i++; |
| 2829 | } |
| 2830 | } |
| 2831 | /* Skip the NUL at the end of the table. */ |
| 2832 | data++; |
| 2833 | |
| 2834 | /* Traverse the File Name table just to count the entries. */ |
| 2835 | if (*data != 0) |
| 2836 | { |
| 2837 | unsigned char *ptr_file_name_table = data; |
| 2838 | |
| 2839 | while (*data != 0) |
| 2840 | { |
| 2841 | unsigned int bytes_read; |
| 2842 | |
| 2843 | /* Skip Name, directory index, last modification time and length |
| 2844 | of file. */ |
| 2845 | data += strlen ((char *) data) + 1; |
| 2846 | read_leb128 (data, & bytes_read, 0); |
| 2847 | data += bytes_read; |
| 2848 | read_leb128 (data, & bytes_read, 0); |
| 2849 | data += bytes_read; |
| 2850 | read_leb128 (data, & bytes_read, 0); |
| 2851 | data += bytes_read; |
| 2852 | |
| 2853 | n_files++; |
| 2854 | } |
| 2855 | |
| 2856 | /* Go through the file table again to save the strings. */ |
| 2857 | file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry)); |
| 2858 | |
| 2859 | i = 0; |
| 2860 | while (*ptr_file_name_table != 0) |
| 2861 | { |
| 2862 | unsigned int bytes_read; |
| 2863 | |
| 2864 | file_table[i].name = ptr_file_name_table; |
| 2865 | ptr_file_name_table += strlen ((char *) ptr_file_name_table) + 1; |
| 2866 | |
| 2867 | /* We are not interested in directory, time or size. */ |
| 2868 | file_table[i].directory_index = read_leb128 (ptr_file_name_table, |
| 2869 | & bytes_read, 0); |
| 2870 | ptr_file_name_table += bytes_read; |
| 2871 | file_table[i].modification_date = read_leb128 (ptr_file_name_table, |
| 2872 | & bytes_read, 0); |
| 2873 | ptr_file_name_table += bytes_read; |
| 2874 | file_table[i].length = read_leb128 (ptr_file_name_table, & bytes_read, 0); |
| 2875 | ptr_file_name_table += bytes_read; |
| 2876 | i++; |
| 2877 | } |
| 2878 | i = 0; |
| 2879 | |
| 2880 | /* Print the Compilation Unit's name and a header. */ |
| 2881 | if (directory_table == NULL) |
| 2882 | { |
| 2883 | printf (_("CU: %s:\n"), file_table[0].name); |
| 2884 | printf (_("File name Line number Starting address\n")); |
| 2885 | } |
| 2886 | else |
| 2887 | { |
| 2888 | unsigned int ix = file_table[0].directory_index; |
| 2889 | const char *directory = ix ? (char *)directory_table[ix - 1] : "."; |
| 2890 | if (do_wide || strlen (directory) < 76) |
| 2891 | printf (_("CU: %s/%s:\n"), directory, file_table[0].name); |
| 2892 | else |
| 2893 | printf ("%s:\n", file_table[0].name); |
| 2894 | |
| 2895 | printf (_("File name Line number Starting address\n")); |
| 2896 | } |
| 2897 | } |
| 2898 | |
| 2899 | /* Skip the NUL at the end of the table. */ |
| 2900 | data++; |
| 2901 | |
| 2902 | /* This loop iterates through the Dwarf Line Number Program. */ |
| 2903 | while (data < end_of_sequence) |
| 2904 | { |
| 2905 | unsigned char op_code; |
| 2906 | int adv; |
| 2907 | unsigned long int uladv; |
| 2908 | unsigned int bytes_read; |
| 2909 | int is_special_opcode = 0; |
| 2910 | |
| 2911 | op_code = *data++; |
| 2912 | |
| 2913 | if (op_code >= linfo.li_opcode_base) |
| 2914 | { |
| 2915 | op_code -= linfo.li_opcode_base; |
| 2916 | uladv = (op_code / linfo.li_line_range); |
| 2917 | if (linfo.li_max_ops_per_insn == 1) |
| 2918 | { |
| 2919 | uladv *= linfo.li_min_insn_length; |
| 2920 | state_machine_regs.address += uladv; |
| 2921 | } |
| 2922 | else |
| 2923 | { |
| 2924 | state_machine_regs.address |
| 2925 | += ((state_machine_regs.op_index + uladv) |
| 2926 | / linfo.li_max_ops_per_insn) |
| 2927 | * linfo.li_min_insn_length; |
| 2928 | state_machine_regs.op_index |
| 2929 | = (state_machine_regs.op_index + uladv) |
| 2930 | % linfo.li_max_ops_per_insn; |
| 2931 | } |
| 2932 | |
| 2933 | adv = (op_code % linfo.li_line_range) + linfo.li_line_base; |
| 2934 | state_machine_regs.line += adv; |
| 2935 | is_special_opcode = 1; |
| 2936 | } |
| 2937 | else switch (op_code) |
| 2938 | { |
| 2939 | case DW_LNS_extended_op: |
| 2940 | { |
| 2941 | unsigned int ext_op_code_len; |
| 2942 | unsigned char ext_op_code; |
| 2943 | unsigned char *op_code_data = data; |
| 2944 | |
| 2945 | ext_op_code_len = read_leb128 (op_code_data, &bytes_read, 0); |
| 2946 | op_code_data += bytes_read; |
| 2947 | |
| 2948 | if (ext_op_code_len == 0) |
| 2949 | { |
| 2950 | warn (_("badly formed extended line op encountered!\n")); |
| 2951 | break; |
| 2952 | } |
| 2953 | ext_op_code_len += bytes_read; |
| 2954 | ext_op_code = *op_code_data++; |
| 2955 | |
| 2956 | switch (ext_op_code) |
| 2957 | { |
| 2958 | case DW_LNE_end_sequence: |
| 2959 | reset_state_machine (linfo.li_default_is_stmt); |
| 2960 | break; |
| 2961 | case DW_LNE_set_address: |
| 2962 | state_machine_regs.address = |
| 2963 | byte_get (op_code_data, ext_op_code_len - bytes_read - 1); |
| 2964 | state_machine_regs.op_index = 0; |
| 2965 | break; |
| 2966 | case DW_LNE_define_file: |
| 2967 | { |
| 2968 | file_table = (File_Entry *) xrealloc |
| 2969 | (file_table, (n_files + 1) * sizeof (File_Entry)); |
| 2970 | |
| 2971 | ++state_machine_regs.last_file_entry; |
| 2972 | /* Source file name. */ |
| 2973 | file_table[n_files].name = op_code_data; |
| 2974 | op_code_data += strlen ((char *) op_code_data) + 1; |
| 2975 | /* Directory index. */ |
| 2976 | file_table[n_files].directory_index = |
| 2977 | read_leb128 (op_code_data, & bytes_read, 0); |
| 2978 | op_code_data += bytes_read; |
| 2979 | /* Last modification time. */ |
| 2980 | file_table[n_files].modification_date = |
| 2981 | read_leb128 (op_code_data, & bytes_read, 0); |
| 2982 | op_code_data += bytes_read; |
| 2983 | /* File length. */ |
| 2984 | file_table[n_files].length = |
| 2985 | read_leb128 (op_code_data, & bytes_read, 0); |
| 2986 | |
| 2987 | n_files++; |
| 2988 | break; |
| 2989 | } |
| 2990 | case DW_LNE_set_discriminator: |
| 2991 | case DW_LNE_HP_set_sequence: |
| 2992 | /* Simply ignored. */ |
| 2993 | break; |
| 2994 | |
| 2995 | default: |
| 2996 | printf (_("UNKNOWN (%u): length %d\n"), |
| 2997 | ext_op_code, ext_op_code_len - bytes_read); |
| 2998 | break; |
| 2999 | } |
| 3000 | data += ext_op_code_len; |
| 3001 | break; |
| 3002 | } |
| 3003 | case DW_LNS_copy: |
| 3004 | break; |
| 3005 | |
| 3006 | case DW_LNS_advance_pc: |
| 3007 | uladv = read_leb128 (data, & bytes_read, 0); |
| 3008 | data += bytes_read; |
| 3009 | if (linfo.li_max_ops_per_insn == 1) |
| 3010 | { |
| 3011 | uladv *= linfo.li_min_insn_length; |
| 3012 | state_machine_regs.address += uladv; |
| 3013 | } |
| 3014 | else |
| 3015 | { |
| 3016 | state_machine_regs.address |
| 3017 | += ((state_machine_regs.op_index + uladv) |
| 3018 | / linfo.li_max_ops_per_insn) |
| 3019 | * linfo.li_min_insn_length; |
| 3020 | state_machine_regs.op_index |
| 3021 | = (state_machine_regs.op_index + uladv) |
| 3022 | % linfo.li_max_ops_per_insn; |
| 3023 | } |
| 3024 | break; |
| 3025 | |
| 3026 | case DW_LNS_advance_line: |
| 3027 | adv = read_sleb128 (data, & bytes_read); |
| 3028 | data += bytes_read; |
| 3029 | state_machine_regs.line += adv; |
| 3030 | break; |
| 3031 | |
| 3032 | case DW_LNS_set_file: |
| 3033 | adv = read_leb128 (data, & bytes_read, 0); |
| 3034 | data += bytes_read; |
| 3035 | state_machine_regs.file = adv; |
| 3036 | if (file_table[state_machine_regs.file - 1].directory_index == 0) |
| 3037 | { |
| 3038 | /* If directory index is 0, that means current directory. */ |
| 3039 | printf ("\n./%s:[++]\n", |
| 3040 | file_table[state_machine_regs.file - 1].name); |
| 3041 | } |
| 3042 | else |
| 3043 | { |
| 3044 | /* The directory index starts counting at 1. */ |
| 3045 | printf ("\n%s/%s:\n", |
| 3046 | directory_table[file_table[state_machine_regs.file - 1].directory_index - 1], |
| 3047 | file_table[state_machine_regs.file - 1].name); |
| 3048 | } |
| 3049 | break; |
| 3050 | |
| 3051 | case DW_LNS_set_column: |
| 3052 | uladv = read_leb128 (data, & bytes_read, 0); |
| 3053 | data += bytes_read; |
| 3054 | state_machine_regs.column = uladv; |
| 3055 | break; |
| 3056 | |
| 3057 | case DW_LNS_negate_stmt: |
| 3058 | adv = state_machine_regs.is_stmt; |
| 3059 | adv = ! adv; |
| 3060 | state_machine_regs.is_stmt = adv; |
| 3061 | break; |
| 3062 | |
| 3063 | case DW_LNS_set_basic_block: |
| 3064 | state_machine_regs.basic_block = 1; |
| 3065 | break; |
| 3066 | |
| 3067 | case DW_LNS_const_add_pc: |
| 3068 | uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); |
| 3069 | if (linfo.li_max_ops_per_insn == 1) |
| 3070 | { |
| 3071 | uladv *= linfo.li_min_insn_length; |
| 3072 | state_machine_regs.address += uladv; |
| 3073 | } |
| 3074 | else |
| 3075 | { |
| 3076 | state_machine_regs.address |
| 3077 | += ((state_machine_regs.op_index + uladv) |
| 3078 | / linfo.li_max_ops_per_insn) |
| 3079 | * linfo.li_min_insn_length; |
| 3080 | state_machine_regs.op_index |
| 3081 | = (state_machine_regs.op_index + uladv) |
| 3082 | % linfo.li_max_ops_per_insn; |
| 3083 | } |
| 3084 | break; |
| 3085 | |
| 3086 | case DW_LNS_fixed_advance_pc: |
| 3087 | uladv = byte_get (data, 2); |
| 3088 | data += 2; |
| 3089 | state_machine_regs.address += uladv; |
| 3090 | state_machine_regs.op_index = 0; |
| 3091 | break; |
| 3092 | |
| 3093 | case DW_LNS_set_prologue_end: |
| 3094 | break; |
| 3095 | |
| 3096 | case DW_LNS_set_epilogue_begin: |
| 3097 | break; |
| 3098 | |
| 3099 | case DW_LNS_set_isa: |
| 3100 | uladv = read_leb128 (data, & bytes_read, 0); |
| 3101 | data += bytes_read; |
| 3102 | printf (_(" Set ISA to %lu\n"), uladv); |
| 3103 | break; |
| 3104 | |
| 3105 | default: |
| 3106 | printf (_(" Unknown opcode %d with operands: "), op_code); |
| 3107 | |
| 3108 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) |
| 3109 | { |
| 3110 | printf ("0x%s%s", dwarf_vmatoa ("x", read_leb128 (data, |
| 3111 | &bytes_read, 0)), |
| 3112 | i == 1 ? "" : ", "); |
| 3113 | data += bytes_read; |
| 3114 | } |
| 3115 | putchar ('\n'); |
| 3116 | break; |
| 3117 | } |
| 3118 | |
| 3119 | /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row |
| 3120 | to the DWARF address/line matrix. */ |
| 3121 | if ((is_special_opcode) || (op_code == DW_LNE_end_sequence) |
| 3122 | || (op_code == DW_LNS_copy)) |
| 3123 | { |
| 3124 | const unsigned int MAX_FILENAME_LENGTH = 35; |
| 3125 | char *fileName = (char *)file_table[state_machine_regs.file - 1].name; |
| 3126 | char *newFileName = NULL; |
| 3127 | size_t fileNameLength = strlen (fileName); |
| 3128 | |
| 3129 | if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide)) |
| 3130 | { |
| 3131 | newFileName = (char *) xmalloc (MAX_FILENAME_LENGTH + 1); |
| 3132 | /* Truncate file name */ |
| 3133 | strncpy (newFileName, |
| 3134 | fileName + fileNameLength - MAX_FILENAME_LENGTH, |
| 3135 | MAX_FILENAME_LENGTH + 1); |
| 3136 | } |
| 3137 | else |
| 3138 | { |
| 3139 | newFileName = (char *) xmalloc (fileNameLength + 1); |
| 3140 | strncpy (newFileName, fileName, fileNameLength + 1); |
| 3141 | } |
| 3142 | |
| 3143 | if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH)) |
| 3144 | { |
| 3145 | if (linfo.li_max_ops_per_insn == 1) |
| 3146 | printf ("%-35s %11d %#18" DWARF_VMA_FMT "x\n", |
| 3147 | newFileName, state_machine_regs.line, |
| 3148 | state_machine_regs.address); |
| 3149 | else |
| 3150 | printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]\n", |
| 3151 | newFileName, state_machine_regs.line, |
| 3152 | state_machine_regs.address, |
| 3153 | state_machine_regs.op_index); |
| 3154 | } |
| 3155 | else |
| 3156 | { |
| 3157 | if (linfo.li_max_ops_per_insn == 1) |
| 3158 | printf ("%s %11d %#18" DWARF_VMA_FMT "x\n", |
| 3159 | newFileName, state_machine_regs.line, |
| 3160 | state_machine_regs.address); |
| 3161 | else |
| 3162 | printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]\n", |
| 3163 | newFileName, state_machine_regs.line, |
| 3164 | state_machine_regs.address, |
| 3165 | state_machine_regs.op_index); |
| 3166 | } |
| 3167 | |
| 3168 | if (op_code == DW_LNE_end_sequence) |
| 3169 | printf ("\n"); |
| 3170 | |
| 3171 | free (newFileName); |
| 3172 | } |
| 3173 | } |
| 3174 | free (file_table); |
| 3175 | file_table = NULL; |
| 3176 | free (directory_table); |
| 3177 | directory_table = NULL; |
| 3178 | putchar ('\n'); |
| 3179 | } |
| 3180 | |
| 3181 | return 1; |
| 3182 | } |
| 3183 | |
| 3184 | static int |
| 3185 | display_debug_lines (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) |
| 3186 | { |
| 3187 | unsigned char *data = section->start; |
| 3188 | unsigned char *end = data + section->size; |
| 3189 | int retValRaw = 1; |
| 3190 | int retValDecoded = 1; |
| 3191 | |
| 3192 | if (do_debug_lines == 0) |
| 3193 | do_debug_lines |= FLAG_DEBUG_LINES_RAW; |
| 3194 | |
| 3195 | if (do_debug_lines & FLAG_DEBUG_LINES_RAW) |
| 3196 | retValRaw = display_debug_lines_raw (section, data, end); |
| 3197 | |
| 3198 | if (do_debug_lines & FLAG_DEBUG_LINES_DECODED) |
| 3199 | retValDecoded = display_debug_lines_decoded (section, data, end); |
| 3200 | |
| 3201 | if (!retValRaw || !retValDecoded) |
| 3202 | return 0; |
| 3203 | |
| 3204 | return 1; |
| 3205 | } |
| 3206 | |
| 3207 | static debug_info * |
| 3208 | find_debug_info_for_offset (unsigned long offset) |
| 3209 | { |
| 3210 | unsigned int i; |
| 3211 | |
| 3212 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
| 3213 | return NULL; |
| 3214 | |
| 3215 | for (i = 0; i < num_debug_info_entries; i++) |
| 3216 | if (debug_information[i].cu_offset == offset) |
| 3217 | return debug_information + i; |
| 3218 | |
| 3219 | return NULL; |
| 3220 | } |
| 3221 | |
| 3222 | static int |
| 3223 | display_debug_pubnames (struct dwarf_section *section, |
| 3224 | void *file ATTRIBUTE_UNUSED) |
| 3225 | { |
| 3226 | DWARF2_Internal_PubNames names; |
| 3227 | unsigned char *start = section->start; |
| 3228 | unsigned char *end = start + section->size; |
| 3229 | |
| 3230 | /* It does not matter if this load fails, |
| 3231 | we test for that later on. */ |
| 3232 | load_debug_info (file); |
| 3233 | |
| 3234 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3235 | |
| 3236 | while (start < end) |
| 3237 | { |
| 3238 | unsigned char *data; |
| 3239 | unsigned long offset; |
| 3240 | int offset_size, initial_length_size; |
| 3241 | |
| 3242 | data = start; |
| 3243 | |
| 3244 | names.pn_length = byte_get (data, 4); |
| 3245 | data += 4; |
| 3246 | if (names.pn_length == 0xffffffff) |
| 3247 | { |
| 3248 | names.pn_length = byte_get (data, 8); |
| 3249 | data += 8; |
| 3250 | offset_size = 8; |
| 3251 | initial_length_size = 12; |
| 3252 | } |
| 3253 | else |
| 3254 | { |
| 3255 | offset_size = 4; |
| 3256 | initial_length_size = 4; |
| 3257 | } |
| 3258 | |
| 3259 | names.pn_version = byte_get (data, 2); |
| 3260 | data += 2; |
| 3261 | |
| 3262 | names.pn_offset = byte_get (data, offset_size); |
| 3263 | data += offset_size; |
| 3264 | |
| 3265 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
| 3266 | && num_debug_info_entries > 0 |
| 3267 | && find_debug_info_for_offset (names.pn_offset) == NULL) |
| 3268 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), |
| 3269 | (unsigned long) names.pn_offset, section->name); |
| 3270 | |
| 3271 | names.pn_size = byte_get (data, offset_size); |
| 3272 | data += offset_size; |
| 3273 | |
| 3274 | start += names.pn_length + initial_length_size; |
| 3275 | |
| 3276 | if (names.pn_version != 2 && names.pn_version != 3) |
| 3277 | { |
| 3278 | static int warned = 0; |
| 3279 | |
| 3280 | if (! warned) |
| 3281 | { |
| 3282 | warn (_("Only DWARF 2 and 3 pubnames are currently supported\n")); |
| 3283 | warned = 1; |
| 3284 | } |
| 3285 | |
| 3286 | continue; |
| 3287 | } |
| 3288 | |
| 3289 | printf (_(" Length: %ld\n"), |
| 3290 | (long) names.pn_length); |
| 3291 | printf (_(" Version: %d\n"), |
| 3292 | names.pn_version); |
| 3293 | printf (_(" Offset into .debug_info section: 0x%lx\n"), |
| 3294 | (unsigned long) names.pn_offset); |
| 3295 | printf (_(" Size of area in .debug_info section: %ld\n"), |
| 3296 | (long) names.pn_size); |
| 3297 | |
| 3298 | printf (_("\n Offset\tName\n")); |
| 3299 | |
| 3300 | do |
| 3301 | { |
| 3302 | offset = byte_get (data, offset_size); |
| 3303 | |
| 3304 | if (offset != 0) |
| 3305 | { |
| 3306 | data += offset_size; |
| 3307 | printf (" %-6lx\t%s\n", offset, data); |
| 3308 | data += strlen ((char *) data) + 1; |
| 3309 | } |
| 3310 | } |
| 3311 | while (offset != 0); |
| 3312 | } |
| 3313 | |
| 3314 | printf ("\n"); |
| 3315 | return 1; |
| 3316 | } |
| 3317 | |
| 3318 | static int |
| 3319 | display_debug_macinfo (struct dwarf_section *section, |
| 3320 | void *file ATTRIBUTE_UNUSED) |
| 3321 | { |
| 3322 | unsigned char *start = section->start; |
| 3323 | unsigned char *end = start + section->size; |
| 3324 | unsigned char *curr = start; |
| 3325 | unsigned int bytes_read; |
| 3326 | enum dwarf_macinfo_record_type op; |
| 3327 | |
| 3328 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3329 | |
| 3330 | while (curr < end) |
| 3331 | { |
| 3332 | unsigned int lineno; |
| 3333 | const char *string; |
| 3334 | |
| 3335 | op = (enum dwarf_macinfo_record_type) *curr; |
| 3336 | curr++; |
| 3337 | |
| 3338 | switch (op) |
| 3339 | { |
| 3340 | case DW_MACINFO_start_file: |
| 3341 | { |
| 3342 | unsigned int filenum; |
| 3343 | |
| 3344 | lineno = read_leb128 (curr, & bytes_read, 0); |
| 3345 | curr += bytes_read; |
| 3346 | filenum = read_leb128 (curr, & bytes_read, 0); |
| 3347 | curr += bytes_read; |
| 3348 | |
| 3349 | printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"), |
| 3350 | lineno, filenum); |
| 3351 | } |
| 3352 | break; |
| 3353 | |
| 3354 | case DW_MACINFO_end_file: |
| 3355 | printf (_(" DW_MACINFO_end_file\n")); |
| 3356 | break; |
| 3357 | |
| 3358 | case DW_MACINFO_define: |
| 3359 | lineno = read_leb128 (curr, & bytes_read, 0); |
| 3360 | curr += bytes_read; |
| 3361 | string = (char *) curr; |
| 3362 | curr += strlen (string) + 1; |
| 3363 | printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"), |
| 3364 | lineno, string); |
| 3365 | break; |
| 3366 | |
| 3367 | case DW_MACINFO_undef: |
| 3368 | lineno = read_leb128 (curr, & bytes_read, 0); |
| 3369 | curr += bytes_read; |
| 3370 | string = (char *) curr; |
| 3371 | curr += strlen (string) + 1; |
| 3372 | printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), |
| 3373 | lineno, string); |
| 3374 | break; |
| 3375 | |
| 3376 | case DW_MACINFO_vendor_ext: |
| 3377 | { |
| 3378 | unsigned int constant; |
| 3379 | |
| 3380 | constant = read_leb128 (curr, & bytes_read, 0); |
| 3381 | curr += bytes_read; |
| 3382 | string = (char *) curr; |
| 3383 | curr += strlen (string) + 1; |
| 3384 | printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), |
| 3385 | constant, string); |
| 3386 | } |
| 3387 | break; |
| 3388 | } |
| 3389 | } |
| 3390 | |
| 3391 | return 1; |
| 3392 | } |
| 3393 | |
| 3394 | /* Given LINE_OFFSET into the .debug_line section, attempt to return |
| 3395 | filename and dirname corresponding to file name table entry with index |
| 3396 | FILEIDX. Return NULL on failure. */ |
| 3397 | |
| 3398 | static unsigned char * |
| 3399 | get_line_filename_and_dirname (dwarf_vma line_offset, dwarf_vma fileidx, |
| 3400 | unsigned char **dir_name) |
| 3401 | { |
| 3402 | struct dwarf_section *section = &debug_displays [line].section; |
| 3403 | unsigned char *hdrptr, *dirtable, *file_name; |
| 3404 | unsigned int offset_size, initial_length_size; |
| 3405 | unsigned int version, opcode_base, bytes_read; |
| 3406 | dwarf_vma length, diridx; |
| 3407 | |
| 3408 | *dir_name = NULL; |
| 3409 | if (section->start == NULL |
| 3410 | || line_offset >= section->size |
| 3411 | || fileidx == 0) |
| 3412 | return NULL; |
| 3413 | |
| 3414 | hdrptr = section->start + line_offset; |
| 3415 | length = byte_get (hdrptr, 4); |
| 3416 | hdrptr += 4; |
| 3417 | if (length == 0xffffffff) |
| 3418 | { |
| 3419 | /* This section is 64-bit DWARF 3. */ |
| 3420 | length = byte_get (hdrptr, 8); |
| 3421 | hdrptr += 8; |
| 3422 | offset_size = 8; |
| 3423 | initial_length_size = 12; |
| 3424 | } |
| 3425 | else |
| 3426 | { |
| 3427 | offset_size = 4; |
| 3428 | initial_length_size = 4; |
| 3429 | } |
| 3430 | if (length + initial_length_size > section->size) |
| 3431 | return NULL; |
| 3432 | version = byte_get (hdrptr, 2); |
| 3433 | hdrptr += 2; |
| 3434 | if (version != 2 && version != 3 && version != 4) |
| 3435 | return NULL; |
| 3436 | hdrptr += offset_size + 1;/* Skip prologue_length and min_insn_length. */ |
| 3437 | if (version >= 4) |
| 3438 | hdrptr++; /* Skip max_ops_per_insn. */ |
| 3439 | hdrptr += 3; /* Skip default_is_stmt, line_base, line_range. */ |
| 3440 | opcode_base = byte_get (hdrptr, 1); |
| 3441 | if (opcode_base == 0) |
| 3442 | return NULL; |
| 3443 | hdrptr++; |
| 3444 | hdrptr += opcode_base - 1; |
| 3445 | dirtable = hdrptr; |
| 3446 | /* Skip over dirname table. */ |
| 3447 | while (*hdrptr != '\0') |
| 3448 | hdrptr += strlen ((char *) hdrptr) + 1; |
| 3449 | hdrptr++; /* Skip the NUL at the end of the table. */ |
| 3450 | /* Now skip over preceding filename table entries. */ |
| 3451 | for (; *hdrptr != '\0' && fileidx > 1; fileidx--) |
| 3452 | { |
| 3453 | hdrptr += strlen ((char *) hdrptr) + 1; |
| 3454 | read_leb128 (hdrptr, &bytes_read, 0); |
| 3455 | hdrptr += bytes_read; |
| 3456 | read_leb128 (hdrptr, &bytes_read, 0); |
| 3457 | hdrptr += bytes_read; |
| 3458 | read_leb128 (hdrptr, &bytes_read, 0); |
| 3459 | hdrptr += bytes_read; |
| 3460 | } |
| 3461 | if (*hdrptr == '\0') |
| 3462 | return NULL; |
| 3463 | file_name = hdrptr; |
| 3464 | hdrptr += strlen ((char *) hdrptr) + 1; |
| 3465 | diridx = read_leb128 (hdrptr, &bytes_read, 0); |
| 3466 | if (diridx == 0) |
| 3467 | return file_name; |
| 3468 | for (; *dirtable != '\0' && diridx > 1; diridx--) |
| 3469 | dirtable += strlen ((char *) dirtable) + 1; |
| 3470 | if (*dirtable == '\0') |
| 3471 | return NULL; |
| 3472 | *dir_name = dirtable; |
| 3473 | return file_name; |
| 3474 | } |
| 3475 | |
| 3476 | static int |
| 3477 | display_debug_macro (struct dwarf_section *section, |
| 3478 | void *file) |
| 3479 | { |
| 3480 | unsigned char *start = section->start; |
| 3481 | unsigned char *end = start + section->size; |
| 3482 | unsigned char *curr = start; |
| 3483 | unsigned char *extended_op_buf[256]; |
| 3484 | unsigned int bytes_read; |
| 3485 | |
| 3486 | load_debug_section (str, file); |
| 3487 | load_debug_section (line, file); |
| 3488 | |
| 3489 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3490 | |
| 3491 | while (curr < end) |
| 3492 | { |
| 3493 | unsigned int lineno, version, flags; |
| 3494 | unsigned int offset_size = 4; |
| 3495 | const char *string; |
| 3496 | dwarf_vma line_offset = 0, sec_offset = curr - start, offset; |
| 3497 | unsigned char **extended_ops = NULL; |
| 3498 | |
| 3499 | version = byte_get (curr, 2); |
| 3500 | curr += 2; |
| 3501 | |
| 3502 | if (version != 4) |
| 3503 | { |
| 3504 | error (_("Only GNU extension to DWARF 4 of %s is currently supported.\n"), |
| 3505 | section->name); |
| 3506 | return 0; |
| 3507 | } |
| 3508 | |
| 3509 | flags = byte_get (curr++, 1); |
| 3510 | if (flags & 1) |
| 3511 | offset_size = 8; |
| 3512 | printf (_(" Offset: 0x%lx\n"), |
| 3513 | (unsigned long) sec_offset); |
| 3514 | printf (_(" Version: %d\n"), version); |
| 3515 | printf (_(" Offset size: %d\n"), offset_size); |
| 3516 | if (flags & 2) |
| 3517 | { |
| 3518 | line_offset = byte_get (curr, offset_size); |
| 3519 | curr += offset_size; |
| 3520 | printf (_(" Offset into .debug_line: 0x%lx\n"), |
| 3521 | (unsigned long) line_offset); |
| 3522 | } |
| 3523 | if (flags & 4) |
| 3524 | { |
| 3525 | unsigned int i, count = byte_get (curr++, 1), op; |
| 3526 | dwarf_vma nargs, n; |
| 3527 | memset (extended_op_buf, 0, sizeof (extended_op_buf)); |
| 3528 | extended_ops = extended_op_buf; |
| 3529 | if (count) |
| 3530 | { |
| 3531 | printf (_(" Extension opcode arguments:\n")); |
| 3532 | for (i = 0; i < count; i++) |
| 3533 | { |
| 3534 | op = byte_get (curr++, 1); |
| 3535 | extended_ops[op] = curr; |
| 3536 | nargs = read_leb128 (curr, &bytes_read, 0); |
| 3537 | curr += bytes_read; |
| 3538 | if (nargs == 0) |
| 3539 | printf (_(" DW_MACRO_GNU_%02x has no arguments\n"), op); |
| 3540 | else |
| 3541 | { |
| 3542 | printf (_(" DW_MACRO_GNU_%02x arguments: "), op); |
| 3543 | for (n = 0; n < nargs; n++) |
| 3544 | { |
| 3545 | unsigned int form = byte_get (curr++, 1); |
| 3546 | printf ("%s%s", get_FORM_name (form), |
| 3547 | n == nargs - 1 ? "\n" : ", "); |
| 3548 | switch (form) |
| 3549 | { |
| 3550 | case DW_FORM_data1: |
| 3551 | case DW_FORM_data2: |
| 3552 | case DW_FORM_data4: |
| 3553 | case DW_FORM_data8: |
| 3554 | case DW_FORM_sdata: |
| 3555 | case DW_FORM_udata: |
| 3556 | case DW_FORM_block: |
| 3557 | case DW_FORM_block1: |
| 3558 | case DW_FORM_block2: |
| 3559 | case DW_FORM_block4: |
| 3560 | case DW_FORM_flag: |
| 3561 | case DW_FORM_string: |
| 3562 | case DW_FORM_strp: |
| 3563 | case DW_FORM_sec_offset: |
| 3564 | break; |
| 3565 | default: |
| 3566 | error (_("Invalid extension opcode form %s\n"), |
| 3567 | get_FORM_name (form)); |
| 3568 | return 0; |
| 3569 | } |
| 3570 | } |
| 3571 | } |
| 3572 | } |
| 3573 | } |
| 3574 | } |
| 3575 | printf ("\n"); |
| 3576 | |
| 3577 | while (1) |
| 3578 | { |
| 3579 | unsigned int op; |
| 3580 | |
| 3581 | if (curr >= end) |
| 3582 | { |
| 3583 | error (_(".debug_macro section not zero terminated\n")); |
| 3584 | return 0; |
| 3585 | } |
| 3586 | |
| 3587 | op = byte_get (curr++, 1); |
| 3588 | if (op == 0) |
| 3589 | break; |
| 3590 | |
| 3591 | switch (op) |
| 3592 | { |
| 3593 | case DW_MACRO_GNU_start_file: |
| 3594 | { |
| 3595 | unsigned int filenum; |
| 3596 | unsigned char *file_name = NULL, *dir_name = NULL; |
| 3597 | |
| 3598 | lineno = read_leb128 (curr, &bytes_read, 0); |
| 3599 | curr += bytes_read; |
| 3600 | filenum = read_leb128 (curr, &bytes_read, 0); |
| 3601 | curr += bytes_read; |
| 3602 | |
| 3603 | if ((flags & 2) == 0) |
| 3604 | error (_("DW_MACRO_GNU_start_file used, but no .debug_line offset provided.\n")); |
| 3605 | else |
| 3606 | file_name |
| 3607 | = get_line_filename_and_dirname (line_offset, filenum, |
| 3608 | &dir_name); |
| 3609 | if (file_name == NULL) |
| 3610 | printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d\n"), |
| 3611 | lineno, filenum); |
| 3612 | else |
| 3613 | printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d filename: %s%s%s\n"), |
| 3614 | lineno, filenum, |
| 3615 | dir_name != NULL ? (const char *) dir_name : "", |
| 3616 | dir_name != NULL ? "/" : "", file_name); |
| 3617 | } |
| 3618 | break; |
| 3619 | |
| 3620 | case DW_MACRO_GNU_end_file: |
| 3621 | printf (_(" DW_MACRO_GNU_end_file\n")); |
| 3622 | break; |
| 3623 | |
| 3624 | case DW_MACRO_GNU_define: |
| 3625 | lineno = read_leb128 (curr, &bytes_read, 0); |
| 3626 | curr += bytes_read; |
| 3627 | string = (char *) curr; |
| 3628 | curr += strlen (string) + 1; |
| 3629 | printf (_(" DW_MACRO_GNU_define - lineno : %d macro : %s\n"), |
| 3630 | lineno, string); |
| 3631 | break; |
| 3632 | |
| 3633 | case DW_MACRO_GNU_undef: |
| 3634 | lineno = read_leb128 (curr, &bytes_read, 0); |
| 3635 | curr += bytes_read; |
| 3636 | string = (char *) curr; |
| 3637 | curr += strlen (string) + 1; |
| 3638 | printf (_(" DW_MACRO_GNU_undef - lineno : %d macro : %s\n"), |
| 3639 | lineno, string); |
| 3640 | break; |
| 3641 | |
| 3642 | case DW_MACRO_GNU_define_indirect: |
| 3643 | lineno = read_leb128 (curr, &bytes_read, 0); |
| 3644 | curr += bytes_read; |
| 3645 | offset = byte_get (curr, offset_size); |
| 3646 | curr += offset_size; |
| 3647 | string = fetch_indirect_string (offset); |
| 3648 | printf (_(" DW_MACRO_GNU_define_indirect - lineno : %d macro : %s\n"), |
| 3649 | lineno, string); |
| 3650 | break; |
| 3651 | |
| 3652 | case DW_MACRO_GNU_undef_indirect: |
| 3653 | lineno = read_leb128 (curr, &bytes_read, 0); |
| 3654 | curr += bytes_read; |
| 3655 | offset = byte_get (curr, offset_size); |
| 3656 | curr += offset_size; |
| 3657 | string = fetch_indirect_string (offset); |
| 3658 | printf (_(" DW_MACRO_GNU_undef_indirect - lineno : %d macro : %s\n"), |
| 3659 | lineno, string); |
| 3660 | break; |
| 3661 | |
| 3662 | case DW_MACRO_GNU_transparent_include: |
| 3663 | offset = byte_get (curr, offset_size); |
| 3664 | curr += offset_size; |
| 3665 | printf (_(" DW_MACRO_GNU_transparent_include - offset : 0x%lx\n"), |
| 3666 | (unsigned long) offset); |
| 3667 | break; |
| 3668 | |
| 3669 | case DW_MACRO_GNU_define_indirect_alt: |
| 3670 | lineno = read_leb128 (curr, &bytes_read, 0); |
| 3671 | curr += bytes_read; |
| 3672 | offset = byte_get (curr, offset_size); |
| 3673 | curr += offset_size; |
| 3674 | printf (_(" DW_MACRO_GNU_define_indirect_alt - lineno : %d macro offset : 0x%lx\n"), |
| 3675 | lineno, (unsigned long) offset); |
| 3676 | break; |
| 3677 | |
| 3678 | case DW_MACRO_GNU_undef_indirect_alt: |
| 3679 | lineno = read_leb128 (curr, &bytes_read, 0); |
| 3680 | curr += bytes_read; |
| 3681 | offset = byte_get (curr, offset_size); |
| 3682 | curr += offset_size; |
| 3683 | printf (_(" DW_MACRO_GNU_undef_indirect_alt - lineno : %d macro offset : 0x%lx\n"), |
| 3684 | lineno, (unsigned long) offset); |
| 3685 | break; |
| 3686 | |
| 3687 | case DW_MACRO_GNU_transparent_include_alt: |
| 3688 | offset = byte_get (curr, offset_size); |
| 3689 | curr += offset_size; |
| 3690 | printf (_(" DW_MACRO_GNU_transparent_include_alt - offset : 0x%lx\n"), |
| 3691 | (unsigned long) offset); |
| 3692 | break; |
| 3693 | |
| 3694 | default: |
| 3695 | if (extended_ops == NULL || extended_ops[op] == NULL) |
| 3696 | { |
| 3697 | error (_(" Unknown macro opcode %02x seen\n"), op); |
| 3698 | return 0; |
| 3699 | } |
| 3700 | else |
| 3701 | { |
| 3702 | /* Skip over unhandled opcodes. */ |
| 3703 | dwarf_vma nargs, n; |
| 3704 | unsigned char *desc = extended_ops[op]; |
| 3705 | nargs = read_leb128 (desc, &bytes_read, 0); |
| 3706 | desc += bytes_read; |
| 3707 | if (nargs == 0) |
| 3708 | { |
| 3709 | printf (_(" DW_MACRO_GNU_%02x\n"), op); |
| 3710 | break; |
| 3711 | } |
| 3712 | printf (_(" DW_MACRO_GNU_%02x -"), op); |
| 3713 | for (n = 0; n < nargs; n++) |
| 3714 | { |
| 3715 | curr |
| 3716 | = read_and_display_attr_value (0, byte_get (desc++, 1), |
| 3717 | curr, 0, 0, offset_size, |
| 3718 | version, NULL, 0, NULL); |
| 3719 | if (n != nargs - 1) |
| 3720 | printf (","); |
| 3721 | } |
| 3722 | printf ("\n"); |
| 3723 | } |
| 3724 | break; |
| 3725 | } |
| 3726 | } |
| 3727 | |
| 3728 | printf ("\n"); |
| 3729 | } |
| 3730 | |
| 3731 | return 1; |
| 3732 | } |
| 3733 | |
| 3734 | static int |
| 3735 | display_debug_abbrev (struct dwarf_section *section, |
| 3736 | void *file ATTRIBUTE_UNUSED) |
| 3737 | { |
| 3738 | abbrev_entry *entry; |
| 3739 | unsigned char *start = section->start; |
| 3740 | unsigned char *end = start + section->size; |
| 3741 | |
| 3742 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3743 | |
| 3744 | do |
| 3745 | { |
| 3746 | unsigned char *last; |
| 3747 | |
| 3748 | free_abbrevs (); |
| 3749 | |
| 3750 | last = start; |
| 3751 | start = process_abbrev_section (start, end); |
| 3752 | |
| 3753 | if (first_abbrev == NULL) |
| 3754 | continue; |
| 3755 | |
| 3756 | printf (_(" Number TAG (0x%lx)\n"), (long) (last - section->start)); |
| 3757 | |
| 3758 | for (entry = first_abbrev; entry; entry = entry->next) |
| 3759 | { |
| 3760 | abbrev_attr *attr; |
| 3761 | |
| 3762 | printf (" %ld %s [%s]\n", |
| 3763 | entry->entry, |
| 3764 | get_TAG_name (entry->tag), |
| 3765 | entry->children ? _("has children") : _("no children")); |
| 3766 | |
| 3767 | for (attr = entry->first_attr; attr; attr = attr->next) |
| 3768 | printf (" %-18s %s\n", |
| 3769 | get_AT_name (attr->attribute), |
| 3770 | get_FORM_name (attr->form)); |
| 3771 | } |
| 3772 | } |
| 3773 | while (start); |
| 3774 | |
| 3775 | printf ("\n"); |
| 3776 | |
| 3777 | return 1; |
| 3778 | } |
| 3779 | |
| 3780 | /* Display a location list from a normal (ie, non-dwo) .debug_loc section. */ |
| 3781 | |
| 3782 | static void |
| 3783 | display_loc_list (struct dwarf_section *section, |
| 3784 | unsigned char **start_ptr, |
| 3785 | int debug_info_entry, |
| 3786 | unsigned long offset, |
| 3787 | unsigned long base_address, |
| 3788 | int has_frame_base) |
| 3789 | { |
| 3790 | unsigned char *start = *start_ptr; |
| 3791 | unsigned char *section_end = section->start + section->size; |
| 3792 | unsigned long cu_offset = debug_information [debug_info_entry].cu_offset; |
| 3793 | unsigned int pointer_size = debug_information [debug_info_entry].pointer_size; |
| 3794 | unsigned int offset_size = debug_information [debug_info_entry].offset_size; |
| 3795 | int dwarf_version = debug_information [debug_info_entry].dwarf_version; |
| 3796 | |
| 3797 | dwarf_vma begin; |
| 3798 | dwarf_vma end; |
| 3799 | unsigned short length; |
| 3800 | int need_frame_base; |
| 3801 | |
| 3802 | while (1) |
| 3803 | { |
| 3804 | if (start + 2 * pointer_size > section_end) |
| 3805 | { |
| 3806 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 3807 | offset); |
| 3808 | break; |
| 3809 | } |
| 3810 | |
| 3811 | /* Note: we use sign extension here in order to be sure that we can detect |
| 3812 | the -1 escape value. Sign extension into the top 32 bits of a 32-bit |
| 3813 | address will not affect the values that we display since we always show |
| 3814 | hex values, and always the bottom 32-bits. */ |
| 3815 | begin = byte_get_signed (start, pointer_size); |
| 3816 | start += pointer_size; |
| 3817 | end = byte_get_signed (start, pointer_size); |
| 3818 | start += pointer_size; |
| 3819 | |
| 3820 | printf (" %8.8lx ", offset); |
| 3821 | |
| 3822 | if (begin == 0 && end == 0) |
| 3823 | { |
| 3824 | printf (_("<End of list>\n")); |
| 3825 | break; |
| 3826 | } |
| 3827 | |
| 3828 | /* Check base address specifiers. */ |
| 3829 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
| 3830 | { |
| 3831 | base_address = end; |
| 3832 | print_dwarf_vma (begin, pointer_size); |
| 3833 | print_dwarf_vma (end, pointer_size); |
| 3834 | printf (_("(base address)\n")); |
| 3835 | continue; |
| 3836 | } |
| 3837 | |
| 3838 | if (start + 2 > section_end) |
| 3839 | { |
| 3840 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 3841 | offset); |
| 3842 | break; |
| 3843 | } |
| 3844 | |
| 3845 | length = byte_get (start, 2); |
| 3846 | start += 2; |
| 3847 | |
| 3848 | if (start + length > section_end) |
| 3849 | { |
| 3850 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 3851 | offset); |
| 3852 | break; |
| 3853 | } |
| 3854 | |
| 3855 | print_dwarf_vma (begin + base_address, pointer_size); |
| 3856 | print_dwarf_vma (end + base_address, pointer_size); |
| 3857 | |
| 3858 | putchar ('('); |
| 3859 | need_frame_base = decode_location_expression (start, |
| 3860 | pointer_size, |
| 3861 | offset_size, |
| 3862 | dwarf_version, |
| 3863 | length, |
| 3864 | cu_offset, section); |
| 3865 | putchar (')'); |
| 3866 | |
| 3867 | if (need_frame_base && !has_frame_base) |
| 3868 | printf (_(" [without DW_AT_frame_base]")); |
| 3869 | |
| 3870 | if (begin == end) |
| 3871 | fputs (_(" (start == end)"), stdout); |
| 3872 | else if (begin > end) |
| 3873 | fputs (_(" (start > end)"), stdout); |
| 3874 | |
| 3875 | putchar ('\n'); |
| 3876 | |
| 3877 | start += length; |
| 3878 | } |
| 3879 | |
| 3880 | *start_ptr = start; |
| 3881 | } |
| 3882 | |
| 3883 | /* Display a location list from a .dwo section. It uses address indexes rather |
| 3884 | than embedded addresses. This code closely follows display_loc_list, but the |
| 3885 | two are sufficiently different that combining things is very ugly. */ |
| 3886 | |
| 3887 | static void |
| 3888 | display_loc_list_dwo (struct dwarf_section *section, |
| 3889 | unsigned char **start_ptr, |
| 3890 | int debug_info_entry, |
| 3891 | unsigned long offset, |
| 3892 | int has_frame_base) |
| 3893 | { |
| 3894 | unsigned char *start = *start_ptr; |
| 3895 | unsigned char *section_end = section->start + section->size; |
| 3896 | unsigned long cu_offset = debug_information [debug_info_entry].cu_offset; |
| 3897 | unsigned int pointer_size = debug_information [debug_info_entry].pointer_size; |
| 3898 | unsigned int offset_size = debug_information [debug_info_entry].offset_size; |
| 3899 | int dwarf_version = debug_information [debug_info_entry].dwarf_version; |
| 3900 | int entry_type; |
| 3901 | unsigned short length; |
| 3902 | int need_frame_base; |
| 3903 | dwarf_vma idx; |
| 3904 | unsigned int bytes_read; |
| 3905 | |
| 3906 | while (1) |
| 3907 | { |
| 3908 | printf (" %8.8lx ", offset); |
| 3909 | |
| 3910 | if (start + 2 > section_end) |
| 3911 | { |
| 3912 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 3913 | offset); |
| 3914 | break; |
| 3915 | } |
| 3916 | |
| 3917 | entry_type = byte_get (start, 1); |
| 3918 | start++; |
| 3919 | switch (entry_type) |
| 3920 | { |
| 3921 | case 0: /* A terminating entry. */ |
| 3922 | idx = byte_get (start, 1); |
| 3923 | start++; |
| 3924 | *start_ptr = start; |
| 3925 | if (idx == 0) |
| 3926 | printf (_("<End of list>\n")); |
| 3927 | else |
| 3928 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 3929 | offset); |
| 3930 | return; |
| 3931 | case 1: /* A base-address entry. */ |
| 3932 | idx = read_leb128 (start, &bytes_read, 0); |
| 3933 | start += bytes_read; |
| 3934 | print_dwarf_vma (idx, pointer_size); |
| 3935 | printf (_("(base address index)\n")); |
| 3936 | continue; |
| 3937 | case 2: /* A normal entry. */ |
| 3938 | idx = read_leb128 (start, &bytes_read, 0); |
| 3939 | start += bytes_read; |
| 3940 | print_dwarf_vma (idx, pointer_size); |
| 3941 | idx = read_leb128 (start, &bytes_read, 0); |
| 3942 | start += bytes_read; |
| 3943 | print_dwarf_vma (idx, pointer_size); |
| 3944 | break; |
| 3945 | default: |
| 3946 | warn (_("Unknown location-list type 0x%x.\n"), entry_type); |
| 3947 | *start_ptr = start; |
| 3948 | return; |
| 3949 | } |
| 3950 | |
| 3951 | if (start + 2 > section_end) |
| 3952 | { |
| 3953 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 3954 | offset); |
| 3955 | break; |
| 3956 | } |
| 3957 | |
| 3958 | length = byte_get (start, 2); |
| 3959 | start += 2; |
| 3960 | |
| 3961 | if (start + length > section_end) |
| 3962 | { |
| 3963 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 3964 | offset); |
| 3965 | break; |
| 3966 | } |
| 3967 | |
| 3968 | putchar ('('); |
| 3969 | need_frame_base = decode_location_expression (start, |
| 3970 | pointer_size, |
| 3971 | offset_size, |
| 3972 | dwarf_version, |
| 3973 | length, |
| 3974 | cu_offset, section); |
| 3975 | putchar (')'); |
| 3976 | |
| 3977 | if (need_frame_base && !has_frame_base) |
| 3978 | printf (_(" [without DW_AT_frame_base]")); |
| 3979 | |
| 3980 | putchar ('\n'); |
| 3981 | |
| 3982 | start += length; |
| 3983 | } |
| 3984 | |
| 3985 | *start_ptr = start; |
| 3986 | } |
| 3987 | |
| 3988 | /* Sort array of indexes in ascending order of loc_offsets[idx]. */ |
| 3989 | |
| 3990 | static dwarf_vma *loc_offsets; |
| 3991 | |
| 3992 | static int |
| 3993 | loc_offsets_compar (const void *ap, const void *bp) |
| 3994 | { |
| 3995 | dwarf_vma a = loc_offsets[*(const unsigned int *) ap]; |
| 3996 | dwarf_vma b = loc_offsets[*(const unsigned int *) bp]; |
| 3997 | |
| 3998 | return (a > b) - (b > a); |
| 3999 | } |
| 4000 | |
| 4001 | static int |
| 4002 | display_debug_loc (struct dwarf_section *section, void *file) |
| 4003 | { |
| 4004 | unsigned char *start = section->start; |
| 4005 | unsigned long bytes; |
| 4006 | unsigned char *section_begin = start; |
| 4007 | unsigned int num_loc_list = 0; |
| 4008 | unsigned long last_offset = 0; |
| 4009 | unsigned int first = 0; |
| 4010 | unsigned int i; |
| 4011 | unsigned int j; |
| 4012 | unsigned int k; |
| 4013 | int seen_first_offset = 0; |
| 4014 | int locs_sorted = 1; |
| 4015 | unsigned char *next; |
| 4016 | unsigned int *array = NULL; |
| 4017 | const char *suffix = strrchr (section->name, '.'); |
| 4018 | int is_dwo = 0; |
| 4019 | |
| 4020 | if (suffix && strcmp (suffix, ".dwo") == 0) |
| 4021 | is_dwo = 1; |
| 4022 | |
| 4023 | bytes = section->size; |
| 4024 | |
| 4025 | if (bytes == 0) |
| 4026 | { |
| 4027 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4028 | return 0; |
| 4029 | } |
| 4030 | |
| 4031 | if (load_debug_info (file) == 0) |
| 4032 | { |
| 4033 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 4034 | section->name); |
| 4035 | return 0; |
| 4036 | } |
| 4037 | |
| 4038 | /* Check the order of location list in .debug_info section. If |
| 4039 | offsets of location lists are in the ascending order, we can |
| 4040 | use `debug_information' directly. */ |
| 4041 | for (i = 0; i < num_debug_info_entries; i++) |
| 4042 | { |
| 4043 | unsigned int num; |
| 4044 | |
| 4045 | num = debug_information [i].num_loc_offsets; |
| 4046 | if (num > num_loc_list) |
| 4047 | num_loc_list = num; |
| 4048 | |
| 4049 | /* Check if we can use `debug_information' directly. */ |
| 4050 | if (locs_sorted && num != 0) |
| 4051 | { |
| 4052 | if (!seen_first_offset) |
| 4053 | { |
| 4054 | /* This is the first location list. */ |
| 4055 | last_offset = debug_information [i].loc_offsets [0]; |
| 4056 | first = i; |
| 4057 | seen_first_offset = 1; |
| 4058 | j = 1; |
| 4059 | } |
| 4060 | else |
| 4061 | j = 0; |
| 4062 | |
| 4063 | for (; j < num; j++) |
| 4064 | { |
| 4065 | if (last_offset > |
| 4066 | debug_information [i].loc_offsets [j]) |
| 4067 | { |
| 4068 | locs_sorted = 0; |
| 4069 | break; |
| 4070 | } |
| 4071 | last_offset = debug_information [i].loc_offsets [j]; |
| 4072 | } |
| 4073 | } |
| 4074 | } |
| 4075 | |
| 4076 | if (!seen_first_offset) |
| 4077 | error (_("No location lists in .debug_info section!\n")); |
| 4078 | |
| 4079 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 4080 | if (debug_information [first].num_loc_offsets > 0 |
| 4081 | && debug_information [first].loc_offsets [0] != section->address) |
| 4082 | warn (_("Location lists in %s section start at 0x%s\n"), |
| 4083 | section->name, |
| 4084 | dwarf_vmatoa ("x", debug_information [first].loc_offsets [0])); |
| 4085 | |
| 4086 | if (!locs_sorted) |
| 4087 | array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int)); |
| 4088 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4089 | if (!is_dwo) |
| 4090 | printf (_(" Offset Begin End Expression\n")); |
| 4091 | else |
| 4092 | printf (_(" Offset Begin idx End idx Expression\n")); |
| 4093 | |
| 4094 | seen_first_offset = 0; |
| 4095 | for (i = first; i < num_debug_info_entries; i++) |
| 4096 | { |
| 4097 | unsigned long offset; |
| 4098 | unsigned long base_address; |
| 4099 | int has_frame_base; |
| 4100 | |
| 4101 | if (!locs_sorted) |
| 4102 | { |
| 4103 | for (k = 0; k < debug_information [i].num_loc_offsets; k++) |
| 4104 | array[k] = k; |
| 4105 | loc_offsets = debug_information [i].loc_offsets; |
| 4106 | qsort (array, debug_information [i].num_loc_offsets, |
| 4107 | sizeof (*array), loc_offsets_compar); |
| 4108 | } |
| 4109 | |
| 4110 | for (k = 0; k < debug_information [i].num_loc_offsets; k++) |
| 4111 | { |
| 4112 | j = locs_sorted ? k : array[k]; |
| 4113 | if (k |
| 4114 | && debug_information [i].loc_offsets [locs_sorted |
| 4115 | ? k - 1 : array [k - 1]] |
| 4116 | == debug_information [i].loc_offsets [j]) |
| 4117 | continue; |
| 4118 | has_frame_base = debug_information [i].have_frame_base [j]; |
| 4119 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 4120 | offset = debug_information [i].loc_offsets [j] - section->address; |
| 4121 | next = section_begin + offset; |
| 4122 | base_address = debug_information [i].base_address; |
| 4123 | |
| 4124 | if (!seen_first_offset) |
| 4125 | seen_first_offset = 1; |
| 4126 | else |
| 4127 | { |
| 4128 | if (start < next) |
| 4129 | warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"), |
| 4130 | (unsigned long) (start - section_begin), |
| 4131 | (unsigned long) (next - section_begin)); |
| 4132 | else if (start > next) |
| 4133 | warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"), |
| 4134 | (unsigned long) (start - section_begin), |
| 4135 | (unsigned long) (next - section_begin)); |
| 4136 | } |
| 4137 | start = next; |
| 4138 | |
| 4139 | if (offset >= bytes) |
| 4140 | { |
| 4141 | warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"), |
| 4142 | offset); |
| 4143 | continue; |
| 4144 | } |
| 4145 | |
| 4146 | if (is_dwo) |
| 4147 | display_loc_list_dwo (section, &start, i, offset, has_frame_base); |
| 4148 | else |
| 4149 | display_loc_list (section, &start, i, offset, base_address, |
| 4150 | has_frame_base); |
| 4151 | } |
| 4152 | } |
| 4153 | |
| 4154 | if (start < section->start + section->size) |
| 4155 | warn (_("There are %ld unused bytes at the end of section %s\n"), |
| 4156 | (long) (section->start + section->size - start), section->name); |
| 4157 | putchar ('\n'); |
| 4158 | free (array); |
| 4159 | return 1; |
| 4160 | } |
| 4161 | |
| 4162 | static int |
| 4163 | display_debug_str (struct dwarf_section *section, |
| 4164 | void *file ATTRIBUTE_UNUSED) |
| 4165 | { |
| 4166 | unsigned char *start = section->start; |
| 4167 | unsigned long bytes = section->size; |
| 4168 | dwarf_vma addr = section->address; |
| 4169 | |
| 4170 | if (bytes == 0) |
| 4171 | { |
| 4172 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4173 | return 0; |
| 4174 | } |
| 4175 | |
| 4176 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4177 | |
| 4178 | while (bytes) |
| 4179 | { |
| 4180 | int j; |
| 4181 | int k; |
| 4182 | int lbytes; |
| 4183 | |
| 4184 | lbytes = (bytes > 16 ? 16 : bytes); |
| 4185 | |
| 4186 | printf (" 0x%8.8lx ", (unsigned long) addr); |
| 4187 | |
| 4188 | for (j = 0; j < 16; j++) |
| 4189 | { |
| 4190 | if (j < lbytes) |
| 4191 | printf ("%2.2x", start[j]); |
| 4192 | else |
| 4193 | printf (" "); |
| 4194 | |
| 4195 | if ((j & 3) == 3) |
| 4196 | printf (" "); |
| 4197 | } |
| 4198 | |
| 4199 | for (j = 0; j < lbytes; j++) |
| 4200 | { |
| 4201 | k = start[j]; |
| 4202 | if (k >= ' ' && k < 0x80) |
| 4203 | printf ("%c", k); |
| 4204 | else |
| 4205 | printf ("."); |
| 4206 | } |
| 4207 | |
| 4208 | putchar ('\n'); |
| 4209 | |
| 4210 | start += lbytes; |
| 4211 | addr += lbytes; |
| 4212 | bytes -= lbytes; |
| 4213 | } |
| 4214 | |
| 4215 | putchar ('\n'); |
| 4216 | |
| 4217 | return 1; |
| 4218 | } |
| 4219 | |
| 4220 | static int |
| 4221 | display_debug_info (struct dwarf_section *section, void *file) |
| 4222 | { |
| 4223 | return process_debug_info (section, file, section->abbrev_sec, 0, 0); |
| 4224 | } |
| 4225 | |
| 4226 | static int |
| 4227 | display_debug_types (struct dwarf_section *section, void *file) |
| 4228 | { |
| 4229 | return process_debug_info (section, file, section->abbrev_sec, 0, 1); |
| 4230 | } |
| 4231 | |
| 4232 | static int |
| 4233 | display_trace_info (struct dwarf_section *section, void *file) |
| 4234 | { |
| 4235 | return process_debug_info (section, file, section->abbrev_sec, 0, 0); |
| 4236 | } |
| 4237 | |
| 4238 | static int |
| 4239 | display_debug_aranges (struct dwarf_section *section, |
| 4240 | void *file ATTRIBUTE_UNUSED) |
| 4241 | { |
| 4242 | unsigned char *start = section->start; |
| 4243 | unsigned char *end = start + section->size; |
| 4244 | |
| 4245 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4246 | |
| 4247 | /* It does not matter if this load fails, |
| 4248 | we test for that later on. */ |
| 4249 | load_debug_info (file); |
| 4250 | |
| 4251 | while (start < end) |
| 4252 | { |
| 4253 | unsigned char *hdrptr; |
| 4254 | DWARF2_Internal_ARange arange; |
| 4255 | unsigned char *addr_ranges; |
| 4256 | dwarf_vma length; |
| 4257 | dwarf_vma address; |
| 4258 | unsigned char address_size; |
| 4259 | int excess; |
| 4260 | int offset_size; |
| 4261 | int initial_length_size; |
| 4262 | |
| 4263 | hdrptr = start; |
| 4264 | |
| 4265 | arange.ar_length = byte_get (hdrptr, 4); |
| 4266 | hdrptr += 4; |
| 4267 | |
| 4268 | if (arange.ar_length == 0xffffffff) |
| 4269 | { |
| 4270 | arange.ar_length = byte_get (hdrptr, 8); |
| 4271 | hdrptr += 8; |
| 4272 | offset_size = 8; |
| 4273 | initial_length_size = 12; |
| 4274 | } |
| 4275 | else |
| 4276 | { |
| 4277 | offset_size = 4; |
| 4278 | initial_length_size = 4; |
| 4279 | } |
| 4280 | |
| 4281 | arange.ar_version = byte_get (hdrptr, 2); |
| 4282 | hdrptr += 2; |
| 4283 | |
| 4284 | arange.ar_info_offset = byte_get (hdrptr, offset_size); |
| 4285 | hdrptr += offset_size; |
| 4286 | |
| 4287 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
| 4288 | && num_debug_info_entries > 0 |
| 4289 | && find_debug_info_for_offset (arange.ar_info_offset) == NULL) |
| 4290 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), |
| 4291 | (unsigned long) arange.ar_info_offset, section->name); |
| 4292 | |
| 4293 | arange.ar_pointer_size = byte_get (hdrptr, 1); |
| 4294 | hdrptr += 1; |
| 4295 | |
| 4296 | arange.ar_segment_size = byte_get (hdrptr, 1); |
| 4297 | hdrptr += 1; |
| 4298 | |
| 4299 | if (arange.ar_version != 2 && arange.ar_version != 3) |
| 4300 | { |
| 4301 | warn (_("Only DWARF 2 and 3 aranges are currently supported.\n")); |
| 4302 | break; |
| 4303 | } |
| 4304 | |
| 4305 | printf (_(" Length: %ld\n"), |
| 4306 | (long) arange.ar_length); |
| 4307 | printf (_(" Version: %d\n"), arange.ar_version); |
| 4308 | printf (_(" Offset into .debug_info: 0x%lx\n"), |
| 4309 | (unsigned long) arange.ar_info_offset); |
| 4310 | printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size); |
| 4311 | printf (_(" Segment Size: %d\n"), arange.ar_segment_size); |
| 4312 | |
| 4313 | address_size = arange.ar_pointer_size + arange.ar_segment_size; |
| 4314 | |
| 4315 | if (address_size == 0) |
| 4316 | { |
| 4317 | error (_("Invalid address size in %s section!\n"), |
| 4318 | section->name); |
| 4319 | break; |
| 4320 | } |
| 4321 | |
| 4322 | /* The DWARF spec does not require that the address size be a power |
| 4323 | of two, but we do. This will have to change if we ever encounter |
| 4324 | an uneven architecture. */ |
| 4325 | if ((address_size & (address_size - 1)) != 0) |
| 4326 | { |
| 4327 | warn (_("Pointer size + Segment size is not a power of two.\n")); |
| 4328 | break; |
| 4329 | } |
| 4330 | |
| 4331 | if (address_size > 4) |
| 4332 | printf (_("\n Address Length\n")); |
| 4333 | else |
| 4334 | printf (_("\n Address Length\n")); |
| 4335 | |
| 4336 | addr_ranges = hdrptr; |
| 4337 | |
| 4338 | /* Must pad to an alignment boundary that is twice the address size. */ |
| 4339 | excess = (hdrptr - start) % (2 * address_size); |
| 4340 | if (excess) |
| 4341 | addr_ranges += (2 * address_size) - excess; |
| 4342 | |
| 4343 | start += arange.ar_length + initial_length_size; |
| 4344 | |
| 4345 | while (addr_ranges + 2 * address_size <= start) |
| 4346 | { |
| 4347 | address = byte_get (addr_ranges, address_size); |
| 4348 | |
| 4349 | addr_ranges += address_size; |
| 4350 | |
| 4351 | length = byte_get (addr_ranges, address_size); |
| 4352 | |
| 4353 | addr_ranges += address_size; |
| 4354 | |
| 4355 | printf (" "); |
| 4356 | print_dwarf_vma (address, address_size); |
| 4357 | print_dwarf_vma (length, address_size); |
| 4358 | putchar ('\n'); |
| 4359 | } |
| 4360 | } |
| 4361 | |
| 4362 | printf ("\n"); |
| 4363 | |
| 4364 | return 1; |
| 4365 | } |
| 4366 | |
| 4367 | /* Comparison function for qsort. */ |
| 4368 | static int |
| 4369 | comp_addr_base (const void * v0, const void * v1) |
| 4370 | { |
| 4371 | debug_info * info0 = (debug_info *) v0; |
| 4372 | debug_info * info1 = (debug_info *) v1; |
| 4373 | return info0->addr_base - info1->addr_base; |
| 4374 | } |
| 4375 | |
| 4376 | /* Display the debug_addr section. */ |
| 4377 | static int |
| 4378 | display_debug_addr (struct dwarf_section *section, |
| 4379 | void *file) |
| 4380 | { |
| 4381 | debug_info **debug_addr_info; |
| 4382 | unsigned char *entry; |
| 4383 | unsigned char *end; |
| 4384 | unsigned int i; |
| 4385 | unsigned int count; |
| 4386 | |
| 4387 | if (section->size == 0) |
| 4388 | { |
| 4389 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4390 | return 0; |
| 4391 | } |
| 4392 | |
| 4393 | if (load_debug_info (file) == 0) |
| 4394 | { |
| 4395 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 4396 | section->name); |
| 4397 | return 0; |
| 4398 | } |
| 4399 | |
| 4400 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4401 | |
| 4402 | debug_addr_info = (debug_info **) xmalloc ((num_debug_info_entries + 1) |
| 4403 | * sizeof (debug_info *)); |
| 4404 | |
| 4405 | count = 0; |
| 4406 | for (i = 0; i < num_debug_info_entries; i++) |
| 4407 | { |
| 4408 | if (debug_information [i].addr_base != DEBUG_INFO_UNAVAILABLE) |
| 4409 | debug_addr_info [count++] = &debug_information [i]; |
| 4410 | } |
| 4411 | |
| 4412 | /* Add a sentinel to make iteration convenient. */ |
| 4413 | debug_addr_info [count] = (debug_info *) xmalloc (sizeof (debug_info)); |
| 4414 | debug_addr_info [count]->addr_base = section->size; |
| 4415 | |
| 4416 | qsort (debug_addr_info, count, sizeof (debug_info *), comp_addr_base); |
| 4417 | for (i = 0; i < count; i++) |
| 4418 | { |
| 4419 | unsigned int idx; |
| 4420 | |
| 4421 | printf (_(" For compilation unit at offset 0x%s:\n"), |
| 4422 | dwarf_vmatoa ("x", debug_addr_info [i]->cu_offset)); |
| 4423 | |
| 4424 | printf (_("\tIndex\tOffset\n")); |
| 4425 | entry = section->start + debug_addr_info [i]->addr_base; |
| 4426 | end = section->start + debug_addr_info [i + 1]->addr_base; |
| 4427 | idx = 0; |
| 4428 | while (entry < end) |
| 4429 | { |
| 4430 | dwarf_vma base = byte_get (entry, debug_addr_info [i]->pointer_size); |
| 4431 | printf (_("\t%d:\t%s\n"), idx, dwarf_vmatoa ("x", base)); |
| 4432 | entry += debug_addr_info [i]->pointer_size; |
| 4433 | idx++; |
| 4434 | } |
| 4435 | } |
| 4436 | printf ("\n"); |
| 4437 | |
| 4438 | free (debug_addr_info); |
| 4439 | return 1; |
| 4440 | } |
| 4441 | |
| 4442 | /* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */ |
| 4443 | static int |
| 4444 | display_debug_str_offsets (struct dwarf_section *section, |
| 4445 | void *file ATTRIBUTE_UNUSED) |
| 4446 | { |
| 4447 | if (section->size == 0) |
| 4448 | { |
| 4449 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4450 | return 0; |
| 4451 | } |
| 4452 | /* TODO: Dump the contents. This is made somewhat difficult by not knowing |
| 4453 | what the offset size is for this section. */ |
| 4454 | return 1; |
| 4455 | } |
| 4456 | |
| 4457 | /* Each debug_information[x].range_lists[y] gets this representation for |
| 4458 | sorting purposes. */ |
| 4459 | |
| 4460 | struct range_entry |
| 4461 | { |
| 4462 | /* The debug_information[x].range_lists[y] value. */ |
| 4463 | unsigned long ranges_offset; |
| 4464 | |
| 4465 | /* Original debug_information to find parameters of the data. */ |
| 4466 | debug_info *debug_info_p; |
| 4467 | }; |
| 4468 | |
| 4469 | /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */ |
| 4470 | |
| 4471 | static int |
| 4472 | range_entry_compar (const void *ap, const void *bp) |
| 4473 | { |
| 4474 | const struct range_entry *a_re = (const struct range_entry *) ap; |
| 4475 | const struct range_entry *b_re = (const struct range_entry *) bp; |
| 4476 | const unsigned long a = a_re->ranges_offset; |
| 4477 | const unsigned long b = b_re->ranges_offset; |
| 4478 | |
| 4479 | return (a > b) - (b > a); |
| 4480 | } |
| 4481 | |
| 4482 | static int |
| 4483 | display_debug_ranges (struct dwarf_section *section, |
| 4484 | void *file ATTRIBUTE_UNUSED) |
| 4485 | { |
| 4486 | unsigned char *start = section->start; |
| 4487 | unsigned char *last_start = start; |
| 4488 | unsigned long bytes; |
| 4489 | unsigned char *section_begin = start; |
| 4490 | unsigned int num_range_list, i; |
| 4491 | struct range_entry *range_entries, *range_entry_fill; |
| 4492 | |
| 4493 | bytes = section->size; |
| 4494 | |
| 4495 | if (bytes == 0) |
| 4496 | { |
| 4497 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4498 | return 0; |
| 4499 | } |
| 4500 | |
| 4501 | if (load_debug_info (file) == 0) |
| 4502 | { |
| 4503 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 4504 | section->name); |
| 4505 | return 0; |
| 4506 | } |
| 4507 | |
| 4508 | num_range_list = 0; |
| 4509 | for (i = 0; i < num_debug_info_entries; i++) |
| 4510 | num_range_list += debug_information [i].num_range_lists; |
| 4511 | |
| 4512 | if (num_range_list == 0) |
| 4513 | { |
| 4514 | /* This can happen when the file was compiled with -gsplit-debug |
| 4515 | which removes references to range lists from the primary .o file. */ |
| 4516 | printf (_("No range lists in .debug_info section.\n")); |
| 4517 | return 1; |
| 4518 | } |
| 4519 | |
| 4520 | range_entries = (struct range_entry *) |
| 4521 | xmalloc (sizeof (*range_entries) * num_range_list); |
| 4522 | range_entry_fill = range_entries; |
| 4523 | |
| 4524 | for (i = 0; i < num_debug_info_entries; i++) |
| 4525 | { |
| 4526 | debug_info *debug_info_p = &debug_information[i]; |
| 4527 | unsigned int j; |
| 4528 | |
| 4529 | for (j = 0; j < debug_info_p->num_range_lists; j++) |
| 4530 | { |
| 4531 | range_entry_fill->ranges_offset = debug_info_p->range_lists[j]; |
| 4532 | range_entry_fill->debug_info_p = debug_info_p; |
| 4533 | range_entry_fill++; |
| 4534 | } |
| 4535 | } |
| 4536 | |
| 4537 | qsort (range_entries, num_range_list, sizeof (*range_entries), |
| 4538 | range_entry_compar); |
| 4539 | |
| 4540 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 4541 | if (dwarf_check != 0 && range_entries[0].ranges_offset != section->address) |
| 4542 | warn (_("Range lists in %s section start at 0x%lx\n"), |
| 4543 | section->name, range_entries[0].ranges_offset); |
| 4544 | |
| 4545 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4546 | printf (_(" Offset Begin End\n")); |
| 4547 | |
| 4548 | for (i = 0; i < num_range_list; i++) |
| 4549 | { |
| 4550 | struct range_entry *range_entry = &range_entries[i]; |
| 4551 | debug_info *debug_info_p = range_entry->debug_info_p; |
| 4552 | unsigned int pointer_size; |
| 4553 | unsigned long offset; |
| 4554 | unsigned char *next; |
| 4555 | unsigned long base_address; |
| 4556 | |
| 4557 | pointer_size = debug_info_p->pointer_size; |
| 4558 | |
| 4559 | /* DWARF sections under Mach-O have non-zero addresses. */ |
| 4560 | offset = range_entry->ranges_offset - section->address; |
| 4561 | next = section_begin + offset; |
| 4562 | base_address = debug_info_p->base_address; |
| 4563 | |
| 4564 | if (dwarf_check != 0 && i > 0) |
| 4565 | { |
| 4566 | if (start < next) |
| 4567 | warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"), |
| 4568 | (unsigned long) (start - section_begin), |
| 4569 | (unsigned long) (next - section_begin), section->name); |
| 4570 | else if (start > next) |
| 4571 | { |
| 4572 | if (next == last_start) |
| 4573 | continue; |
| 4574 | warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), |
| 4575 | (unsigned long) (start - section_begin), |
| 4576 | (unsigned long) (next - section_begin), section->name); |
| 4577 | } |
| 4578 | } |
| 4579 | start = next; |
| 4580 | last_start = next; |
| 4581 | |
| 4582 | while (1) |
| 4583 | { |
| 4584 | dwarf_vma begin; |
| 4585 | dwarf_vma end; |
| 4586 | |
| 4587 | /* Note: we use sign extension here in order to be sure that |
| 4588 | we can detect the -1 escape value. Sign extension into the |
| 4589 | top 32 bits of a 32-bit address will not affect the values |
| 4590 | that we display since we always show hex values, and always |
| 4591 | the bottom 32-bits. */ |
| 4592 | begin = byte_get_signed (start, pointer_size); |
| 4593 | start += pointer_size; |
| 4594 | end = byte_get_signed (start, pointer_size); |
| 4595 | start += pointer_size; |
| 4596 | |
| 4597 | printf (" %8.8lx ", offset); |
| 4598 | |
| 4599 | if (begin == 0 && end == 0) |
| 4600 | { |
| 4601 | printf (_("<End of list>\n")); |
| 4602 | break; |
| 4603 | } |
| 4604 | |
| 4605 | /* Check base address specifiers. */ |
| 4606 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
| 4607 | { |
| 4608 | base_address = end; |
| 4609 | print_dwarf_vma (begin, pointer_size); |
| 4610 | print_dwarf_vma (end, pointer_size); |
| 4611 | printf ("(base address)\n"); |
| 4612 | continue; |
| 4613 | } |
| 4614 | |
| 4615 | print_dwarf_vma (begin + base_address, pointer_size); |
| 4616 | print_dwarf_vma (end + base_address, pointer_size); |
| 4617 | |
| 4618 | if (begin == end) |
| 4619 | fputs (_("(start == end)"), stdout); |
| 4620 | else if (begin > end) |
| 4621 | fputs (_("(start > end)"), stdout); |
| 4622 | |
| 4623 | putchar ('\n'); |
| 4624 | } |
| 4625 | } |
| 4626 | putchar ('\n'); |
| 4627 | |
| 4628 | free (range_entries); |
| 4629 | |
| 4630 | return 1; |
| 4631 | } |
| 4632 | |
| 4633 | typedef struct Frame_Chunk |
| 4634 | { |
| 4635 | struct Frame_Chunk *next; |
| 4636 | unsigned char *chunk_start; |
| 4637 | int ncols; |
| 4638 | /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */ |
| 4639 | short int *col_type; |
| 4640 | int *col_offset; |
| 4641 | char *augmentation; |
| 4642 | unsigned int code_factor; |
| 4643 | int data_factor; |
| 4644 | unsigned long pc_begin; |
| 4645 | unsigned long pc_range; |
| 4646 | int cfa_reg; |
| 4647 | int cfa_offset; |
| 4648 | int ra; |
| 4649 | unsigned char fde_encoding; |
| 4650 | unsigned char cfa_exp; |
| 4651 | unsigned char ptr_size; |
| 4652 | unsigned char segment_size; |
| 4653 | } |
| 4654 | Frame_Chunk; |
| 4655 | |
| 4656 | static const char *const *dwarf_regnames; |
| 4657 | static unsigned int dwarf_regnames_count; |
| 4658 | |
| 4659 | /* A marker for a col_type that means this column was never referenced |
| 4660 | in the frame info. */ |
| 4661 | #define DW_CFA_unreferenced (-1) |
| 4662 | |
| 4663 | /* Return 0 if not more space is needed, 1 if more space is needed, |
| 4664 | -1 for invalid reg. */ |
| 4665 | |
| 4666 | static int |
| 4667 | frame_need_space (Frame_Chunk *fc, unsigned int reg) |
| 4668 | { |
| 4669 | int prev = fc->ncols; |
| 4670 | |
| 4671 | if (reg < (unsigned int) fc->ncols) |
| 4672 | return 0; |
| 4673 | |
| 4674 | if (dwarf_regnames_count |
| 4675 | && reg > dwarf_regnames_count) |
| 4676 | return -1; |
| 4677 | |
| 4678 | fc->ncols = reg + 1; |
| 4679 | fc->col_type = (short int *) xcrealloc (fc->col_type, fc->ncols, |
| 4680 | sizeof (short int)); |
| 4681 | fc->col_offset = (int *) xcrealloc (fc->col_offset, fc->ncols, sizeof (int)); |
| 4682 | |
| 4683 | while (prev < fc->ncols) |
| 4684 | { |
| 4685 | fc->col_type[prev] = DW_CFA_unreferenced; |
| 4686 | fc->col_offset[prev] = 0; |
| 4687 | prev++; |
| 4688 | } |
| 4689 | return 1; |
| 4690 | } |
| 4691 | |
| 4692 | static const char *const dwarf_regnames_i386[] = |
| 4693 | { |
| 4694 | "eax", "ecx", "edx", "ebx", |
| 4695 | "esp", "ebp", "esi", "edi", |
| 4696 | "eip", "eflags", NULL, |
| 4697 | "st0", "st1", "st2", "st3", |
| 4698 | "st4", "st5", "st6", "st7", |
| 4699 | NULL, NULL, |
| 4700 | "xmm0", "xmm1", "xmm2", "xmm3", |
| 4701 | "xmm4", "xmm5", "xmm6", "xmm7", |
| 4702 | "mm0", "mm1", "mm2", "mm3", |
| 4703 | "mm4", "mm5", "mm6", "mm7", |
| 4704 | "fcw", "fsw", "mxcsr", |
| 4705 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, |
| 4706 | "tr", "ldtr" |
| 4707 | }; |
| 4708 | |
| 4709 | void |
| 4710 | init_dwarf_regnames_i386 (void) |
| 4711 | { |
| 4712 | dwarf_regnames = dwarf_regnames_i386; |
| 4713 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386); |
| 4714 | } |
| 4715 | |
| 4716 | static const char *const dwarf_regnames_x86_64[] = |
| 4717 | { |
| 4718 | "rax", "rdx", "rcx", "rbx", |
| 4719 | "rsi", "rdi", "rbp", "rsp", |
| 4720 | "r8", "r9", "r10", "r11", |
| 4721 | "r12", "r13", "r14", "r15", |
| 4722 | "rip", |
| 4723 | "xmm0", "xmm1", "xmm2", "xmm3", |
| 4724 | "xmm4", "xmm5", "xmm6", "xmm7", |
| 4725 | "xmm8", "xmm9", "xmm10", "xmm11", |
| 4726 | "xmm12", "xmm13", "xmm14", "xmm15", |
| 4727 | "st0", "st1", "st2", "st3", |
| 4728 | "st4", "st5", "st6", "st7", |
| 4729 | "mm0", "mm1", "mm2", "mm3", |
| 4730 | "mm4", "mm5", "mm6", "mm7", |
| 4731 | "rflags", |
| 4732 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, |
| 4733 | "fs.base", "gs.base", NULL, NULL, |
| 4734 | "tr", "ldtr", |
| 4735 | "mxcsr", "fcw", "fsw" |
| 4736 | }; |
| 4737 | |
| 4738 | void |
| 4739 | init_dwarf_regnames_x86_64 (void) |
| 4740 | { |
| 4741 | dwarf_regnames = dwarf_regnames_x86_64; |
| 4742 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64); |
| 4743 | } |
| 4744 | |
| 4745 | void |
| 4746 | init_dwarf_regnames (unsigned int e_machine) |
| 4747 | { |
| 4748 | switch (e_machine) |
| 4749 | { |
| 4750 | case EM_386: |
| 4751 | case EM_486: |
| 4752 | init_dwarf_regnames_i386 (); |
| 4753 | break; |
| 4754 | |
| 4755 | case EM_X86_64: |
| 4756 | case EM_L1OM: |
| 4757 | case EM_K1OM: |
| 4758 | init_dwarf_regnames_x86_64 (); |
| 4759 | break; |
| 4760 | |
| 4761 | default: |
| 4762 | break; |
| 4763 | } |
| 4764 | } |
| 4765 | |
| 4766 | static const char * |
| 4767 | regname (unsigned int regno, int row) |
| 4768 | { |
| 4769 | static char reg[64]; |
| 4770 | if (dwarf_regnames |
| 4771 | && regno < dwarf_regnames_count |
| 4772 | && dwarf_regnames [regno] != NULL) |
| 4773 | { |
| 4774 | if (row) |
| 4775 | return dwarf_regnames [regno]; |
| 4776 | snprintf (reg, sizeof (reg), "r%d (%s)", regno, |
| 4777 | dwarf_regnames [regno]); |
| 4778 | } |
| 4779 | else |
| 4780 | snprintf (reg, sizeof (reg), "r%d", regno); |
| 4781 | return reg; |
| 4782 | } |
| 4783 | |
| 4784 | static void |
| 4785 | frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs) |
| 4786 | { |
| 4787 | int r; |
| 4788 | char tmp[100]; |
| 4789 | |
| 4790 | if (*max_regs < fc->ncols) |
| 4791 | *max_regs = fc->ncols; |
| 4792 | |
| 4793 | if (*need_col_headers) |
| 4794 | { |
| 4795 | static const char *sloc = " LOC"; |
| 4796 | |
| 4797 | *need_col_headers = 0; |
| 4798 | |
| 4799 | printf ("%-*s CFA ", eh_addr_size * 2, sloc); |
| 4800 | |
| 4801 | for (r = 0; r < *max_regs; r++) |
| 4802 | if (fc->col_type[r] != DW_CFA_unreferenced) |
| 4803 | { |
| 4804 | if (r == fc->ra) |
| 4805 | printf ("ra "); |
| 4806 | else |
| 4807 | printf ("%-5s ", regname (r, 1)); |
| 4808 | } |
| 4809 | |
| 4810 | printf ("\n"); |
| 4811 | } |
| 4812 | |
| 4813 | printf ("%0*lx ", eh_addr_size * 2, fc->pc_begin); |
| 4814 | if (fc->cfa_exp) |
| 4815 | strcpy (tmp, "exp"); |
| 4816 | else |
| 4817 | sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset); |
| 4818 | printf ("%-8s ", tmp); |
| 4819 | |
| 4820 | for (r = 0; r < fc->ncols; r++) |
| 4821 | { |
| 4822 | if (fc->col_type[r] != DW_CFA_unreferenced) |
| 4823 | { |
| 4824 | switch (fc->col_type[r]) |
| 4825 | { |
| 4826 | case DW_CFA_undefined: |
| 4827 | strcpy (tmp, "u"); |
| 4828 | break; |
| 4829 | case DW_CFA_same_value: |
| 4830 | strcpy (tmp, "s"); |
| 4831 | break; |
| 4832 | case DW_CFA_offset: |
| 4833 | sprintf (tmp, "c%+d", fc->col_offset[r]); |
| 4834 | break; |
| 4835 | case DW_CFA_val_offset: |
| 4836 | sprintf (tmp, "v%+d", fc->col_offset[r]); |
| 4837 | break; |
| 4838 | case DW_CFA_register: |
| 4839 | sprintf (tmp, "%s", regname (fc->col_offset[r], 0)); |
| 4840 | break; |
| 4841 | case DW_CFA_expression: |
| 4842 | strcpy (tmp, "exp"); |
| 4843 | break; |
| 4844 | case DW_CFA_val_expression: |
| 4845 | strcpy (tmp, "vexp"); |
| 4846 | break; |
| 4847 | default: |
| 4848 | strcpy (tmp, "n/a"); |
| 4849 | break; |
| 4850 | } |
| 4851 | printf ("%-5s ", tmp); |
| 4852 | } |
| 4853 | } |
| 4854 | printf ("\n"); |
| 4855 | } |
| 4856 | |
| 4857 | #define GET(N) byte_get (start, N); start += N |
| 4858 | #define LEB() read_leb128 (start, & length_return, 0); start += length_return |
| 4859 | #define SLEB() read_sleb128 (start, & length_return); start += length_return |
| 4860 | |
| 4861 | static int |
| 4862 | display_debug_frames (struct dwarf_section *section, |
| 4863 | void *file ATTRIBUTE_UNUSED) |
| 4864 | { |
| 4865 | unsigned char *start = section->start; |
| 4866 | unsigned char *end = start + section->size; |
| 4867 | unsigned char *section_start = start; |
| 4868 | Frame_Chunk *chunks = 0; |
| 4869 | Frame_Chunk *remembered_state = 0; |
| 4870 | Frame_Chunk *rs; |
| 4871 | int is_eh = strcmp (section->name, ".eh_frame") == 0; |
| 4872 | unsigned int length_return; |
| 4873 | int max_regs = 0; |
| 4874 | const char *bad_reg = _("bad register: "); |
| 4875 | int saved_eh_addr_size = eh_addr_size; |
| 4876 | |
| 4877 | printf (_("Contents of the %s section:\n"), section->name); |
| 4878 | |
| 4879 | while (start < end) |
| 4880 | { |
| 4881 | unsigned char *saved_start; |
| 4882 | unsigned char *block_end; |
| 4883 | unsigned long length; |
| 4884 | unsigned long cie_id; |
| 4885 | Frame_Chunk *fc; |
| 4886 | Frame_Chunk *cie; |
| 4887 | int need_col_headers = 1; |
| 4888 | unsigned char *augmentation_data = NULL; |
| 4889 | unsigned long augmentation_data_len = 0; |
| 4890 | int encoded_ptr_size = saved_eh_addr_size; |
| 4891 | int offset_size; |
| 4892 | int initial_length_size; |
| 4893 | |
| 4894 | saved_start = start; |
| 4895 | length = byte_get (start, 4); start += 4; |
| 4896 | |
| 4897 | if (length == 0) |
| 4898 | { |
| 4899 | printf ("\n%08lx ZERO terminator\n\n", |
| 4900 | (unsigned long)(saved_start - section_start)); |
| 4901 | continue; |
| 4902 | } |
| 4903 | |
| 4904 | if (length == 0xffffffff) |
| 4905 | { |
| 4906 | length = byte_get (start, 8); |
| 4907 | start += 8; |
| 4908 | offset_size = 8; |
| 4909 | initial_length_size = 12; |
| 4910 | } |
| 4911 | else |
| 4912 | { |
| 4913 | offset_size = 4; |
| 4914 | initial_length_size = 4; |
| 4915 | } |
| 4916 | |
| 4917 | block_end = saved_start + length + initial_length_size; |
| 4918 | if (block_end > end) |
| 4919 | { |
| 4920 | warn ("Invalid length %#08lx in FDE at %#08lx\n", |
| 4921 | length, (unsigned long)(saved_start - section_start)); |
| 4922 | block_end = end; |
| 4923 | } |
| 4924 | cie_id = byte_get (start, offset_size); start += offset_size; |
| 4925 | |
| 4926 | if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID)) |
| 4927 | { |
| 4928 | int version; |
| 4929 | |
| 4930 | fc = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk)); |
| 4931 | memset (fc, 0, sizeof (Frame_Chunk)); |
| 4932 | |
| 4933 | fc->next = chunks; |
| 4934 | chunks = fc; |
| 4935 | fc->chunk_start = saved_start; |
| 4936 | fc->ncols = 0; |
| 4937 | fc->col_type = (short int *) xmalloc (sizeof (short int)); |
| 4938 | fc->col_offset = (int *) xmalloc (sizeof (int)); |
| 4939 | frame_need_space (fc, max_regs - 1); |
| 4940 | |
| 4941 | version = *start++; |
| 4942 | |
| 4943 | fc->augmentation = (char *) start; |
| 4944 | start = (unsigned char *) strchr ((char *) start, '\0') + 1; |
| 4945 | |
| 4946 | if (strcmp (fc->augmentation, "eh") == 0) |
| 4947 | start += eh_addr_size; |
| 4948 | |
| 4949 | if (version >= 4) |
| 4950 | { |
| 4951 | fc->ptr_size = GET (1); |
| 4952 | fc->segment_size = GET (1); |
| 4953 | eh_addr_size = fc->ptr_size; |
| 4954 | } |
| 4955 | else |
| 4956 | { |
| 4957 | fc->ptr_size = eh_addr_size; |
| 4958 | fc->segment_size = 0; |
| 4959 | } |
| 4960 | fc->code_factor = LEB (); |
| 4961 | fc->data_factor = SLEB (); |
| 4962 | if (version == 1) |
| 4963 | { |
| 4964 | fc->ra = GET (1); |
| 4965 | } |
| 4966 | else |
| 4967 | { |
| 4968 | fc->ra = LEB (); |
| 4969 | } |
| 4970 | |
| 4971 | if (fc->augmentation[0] == 'z') |
| 4972 | { |
| 4973 | augmentation_data_len = LEB (); |
| 4974 | augmentation_data = start; |
| 4975 | start += augmentation_data_len; |
| 4976 | } |
| 4977 | cie = fc; |
| 4978 | |
| 4979 | if (do_debug_frames_interp) |
| 4980 | printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n", |
| 4981 | (unsigned long)(saved_start - section_start), length, cie_id, |
| 4982 | fc->augmentation, fc->code_factor, fc->data_factor, |
| 4983 | fc->ra); |
| 4984 | else |
| 4985 | { |
| 4986 | printf ("\n%08lx %08lx %08lx CIE\n", |
| 4987 | (unsigned long)(saved_start - section_start), length, cie_id); |
| 4988 | printf (" Version: %d\n", version); |
| 4989 | printf (" Augmentation: \"%s\"\n", fc->augmentation); |
| 4990 | if (version >= 4) |
| 4991 | { |
| 4992 | printf (" Pointer Size: %u\n", fc->ptr_size); |
| 4993 | printf (" Segment Size: %u\n", fc->segment_size); |
| 4994 | } |
| 4995 | printf (" Code alignment factor: %u\n", fc->code_factor); |
| 4996 | printf (" Data alignment factor: %d\n", fc->data_factor); |
| 4997 | printf (" Return address column: %d\n", fc->ra); |
| 4998 | |
| 4999 | if (augmentation_data_len) |
| 5000 | { |
| 5001 | unsigned long i; |
| 5002 | printf (" Augmentation data: "); |
| 5003 | for (i = 0; i < augmentation_data_len; ++i) |
| 5004 | printf (" %02x", augmentation_data[i]); |
| 5005 | putchar ('\n'); |
| 5006 | } |
| 5007 | putchar ('\n'); |
| 5008 | } |
| 5009 | |
| 5010 | if (augmentation_data_len) |
| 5011 | { |
| 5012 | unsigned char *p, *q; |
| 5013 | p = (unsigned char *) fc->augmentation + 1; |
| 5014 | q = augmentation_data; |
| 5015 | |
| 5016 | while (1) |
| 5017 | { |
| 5018 | if (*p == 'L') |
| 5019 | q++; |
| 5020 | else if (*p == 'P') |
| 5021 | q += 1 + size_of_encoded_value (*q); |
| 5022 | else if (*p == 'R') |
| 5023 | fc->fde_encoding = *q++; |
| 5024 | else if (*p == 'S') |
| 5025 | ; |
| 5026 | else |
| 5027 | break; |
| 5028 | p++; |
| 5029 | } |
| 5030 | |
| 5031 | if (fc->fde_encoding) |
| 5032 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); |
| 5033 | } |
| 5034 | |
| 5035 | frame_need_space (fc, fc->ra); |
| 5036 | } |
| 5037 | else |
| 5038 | { |
| 5039 | unsigned char *look_for; |
| 5040 | static Frame_Chunk fde_fc; |
| 5041 | unsigned long segment_selector; |
| 5042 | |
| 5043 | fc = & fde_fc; |
| 5044 | memset (fc, 0, sizeof (Frame_Chunk)); |
| 5045 | |
| 5046 | look_for = is_eh ? start - 4 - cie_id : section_start + cie_id; |
| 5047 | |
| 5048 | for (cie = chunks; cie ; cie = cie->next) |
| 5049 | if (cie->chunk_start == look_for) |
| 5050 | break; |
| 5051 | |
| 5052 | if (!cie) |
| 5053 | { |
| 5054 | warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n", |
| 5055 | cie_id, (unsigned long)(saved_start - section_start)); |
| 5056 | fc->ncols = 0; |
| 5057 | fc->col_type = (short int *) xmalloc (sizeof (short int)); |
| 5058 | fc->col_offset = (int *) xmalloc (sizeof (int)); |
| 5059 | frame_need_space (fc, max_regs - 1); |
| 5060 | cie = fc; |
| 5061 | fc->augmentation = ""; |
| 5062 | fc->fde_encoding = 0; |
| 5063 | fc->ptr_size = eh_addr_size; |
| 5064 | fc->segment_size = 0; |
| 5065 | } |
| 5066 | else |
| 5067 | { |
| 5068 | fc->ncols = cie->ncols; |
| 5069 | fc->col_type = (short int *) xcmalloc (fc->ncols, sizeof (short int)); |
| 5070 | fc->col_offset = (int *) xcmalloc (fc->ncols, sizeof (int)); |
| 5071 | memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int)); |
| 5072 | memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int)); |
| 5073 | fc->augmentation = cie->augmentation; |
| 5074 | fc->ptr_size = cie->ptr_size; |
| 5075 | eh_addr_size = cie->ptr_size; |
| 5076 | fc->segment_size = cie->segment_size; |
| 5077 | fc->code_factor = cie->code_factor; |
| 5078 | fc->data_factor = cie->data_factor; |
| 5079 | fc->cfa_reg = cie->cfa_reg; |
| 5080 | fc->cfa_offset = cie->cfa_offset; |
| 5081 | fc->ra = cie->ra; |
| 5082 | frame_need_space (fc, max_regs - 1); |
| 5083 | fc->fde_encoding = cie->fde_encoding; |
| 5084 | } |
| 5085 | |
| 5086 | if (fc->fde_encoding) |
| 5087 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); |
| 5088 | |
| 5089 | segment_selector = 0; |
| 5090 | if (fc->segment_size) |
| 5091 | { |
| 5092 | segment_selector = byte_get (start, fc->segment_size); |
| 5093 | start += fc->segment_size; |
| 5094 | } |
| 5095 | fc->pc_begin = get_encoded_value (start, fc->fde_encoding, section); |
| 5096 | start += encoded_ptr_size; |
| 5097 | fc->pc_range = byte_get (start, encoded_ptr_size); |
| 5098 | start += encoded_ptr_size; |
| 5099 | |
| 5100 | if (cie->augmentation[0] == 'z') |
| 5101 | { |
| 5102 | augmentation_data_len = LEB (); |
| 5103 | augmentation_data = start; |
| 5104 | start += augmentation_data_len; |
| 5105 | } |
| 5106 | |
| 5107 | printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=", |
| 5108 | (unsigned long)(saved_start - section_start), length, cie_id, |
| 5109 | (unsigned long)(cie->chunk_start - section_start)); |
| 5110 | if (fc->segment_size) |
| 5111 | printf ("%04lx:", segment_selector); |
| 5112 | printf ("%08lx..%08lx\n", fc->pc_begin, fc->pc_begin + fc->pc_range); |
| 5113 | if (! do_debug_frames_interp && augmentation_data_len) |
| 5114 | { |
| 5115 | unsigned long i; |
| 5116 | |
| 5117 | printf (" Augmentation data: "); |
| 5118 | for (i = 0; i < augmentation_data_len; ++i) |
| 5119 | printf (" %02x", augmentation_data[i]); |
| 5120 | putchar ('\n'); |
| 5121 | putchar ('\n'); |
| 5122 | } |
| 5123 | } |
| 5124 | |
| 5125 | /* At this point, fc is the current chunk, cie (if any) is set, and |
| 5126 | we're about to interpret instructions for the chunk. */ |
| 5127 | /* ??? At present we need to do this always, since this sizes the |
| 5128 | fc->col_type and fc->col_offset arrays, which we write into always. |
| 5129 | We should probably split the interpreted and non-interpreted bits |
| 5130 | into two different routines, since there's so much that doesn't |
| 5131 | really overlap between them. */ |
| 5132 | if (1 || do_debug_frames_interp) |
| 5133 | { |
| 5134 | /* Start by making a pass over the chunk, allocating storage |
| 5135 | and taking note of what registers are used. */ |
| 5136 | unsigned char *tmp = start; |
| 5137 | |
| 5138 | while (start < block_end) |
| 5139 | { |
| 5140 | unsigned op, opa; |
| 5141 | unsigned long reg, temp; |
| 5142 | |
| 5143 | op = *start++; |
| 5144 | opa = op & 0x3f; |
| 5145 | if (op & 0xc0) |
| 5146 | op &= 0xc0; |
| 5147 | |
| 5148 | /* Warning: if you add any more cases to this switch, be |
| 5149 | sure to add them to the corresponding switch below. */ |
| 5150 | switch (op) |
| 5151 | { |
| 5152 | case DW_CFA_advance_loc: |
| 5153 | break; |
| 5154 | case DW_CFA_offset: |
| 5155 | LEB (); |
| 5156 | if (frame_need_space (fc, opa) >= 0) |
| 5157 | fc->col_type[opa] = DW_CFA_undefined; |
| 5158 | break; |
| 5159 | case DW_CFA_restore: |
| 5160 | if (frame_need_space (fc, opa) >= 0) |
| 5161 | fc->col_type[opa] = DW_CFA_undefined; |
| 5162 | break; |
| 5163 | case DW_CFA_set_loc: |
| 5164 | start += encoded_ptr_size; |
| 5165 | break; |
| 5166 | case DW_CFA_advance_loc1: |
| 5167 | start += 1; |
| 5168 | break; |
| 5169 | case DW_CFA_advance_loc2: |
| 5170 | start += 2; |
| 5171 | break; |
| 5172 | case DW_CFA_advance_loc4: |
| 5173 | start += 4; |
| 5174 | break; |
| 5175 | case DW_CFA_offset_extended: |
| 5176 | case DW_CFA_val_offset: |
| 5177 | reg = LEB (); LEB (); |
| 5178 | if (frame_need_space (fc, reg) >= 0) |
| 5179 | fc->col_type[reg] = DW_CFA_undefined; |
| 5180 | break; |
| 5181 | case DW_CFA_restore_extended: |
| 5182 | reg = LEB (); |
| 5183 | frame_need_space (fc, reg); |
| 5184 | if (frame_need_space (fc, reg) >= 0) |
| 5185 | fc->col_type[reg] = DW_CFA_undefined; |
| 5186 | break; |
| 5187 | case DW_CFA_undefined: |
| 5188 | reg = LEB (); |
| 5189 | if (frame_need_space (fc, reg) >= 0) |
| 5190 | fc->col_type[reg] = DW_CFA_undefined; |
| 5191 | break; |
| 5192 | case DW_CFA_same_value: |
| 5193 | reg = LEB (); |
| 5194 | if (frame_need_space (fc, reg) >= 0) |
| 5195 | fc->col_type[reg] = DW_CFA_undefined; |
| 5196 | break; |
| 5197 | case DW_CFA_register: |
| 5198 | reg = LEB (); LEB (); |
| 5199 | if (frame_need_space (fc, reg) >= 0) |
| 5200 | fc->col_type[reg] = DW_CFA_undefined; |
| 5201 | break; |
| 5202 | case DW_CFA_def_cfa: |
| 5203 | LEB (); LEB (); |
| 5204 | break; |
| 5205 | case DW_CFA_def_cfa_register: |
| 5206 | LEB (); |
| 5207 | break; |
| 5208 | case DW_CFA_def_cfa_offset: |
| 5209 | LEB (); |
| 5210 | break; |
| 5211 | case DW_CFA_def_cfa_expression: |
| 5212 | temp = LEB (); |
| 5213 | start += temp; |
| 5214 | break; |
| 5215 | case DW_CFA_expression: |
| 5216 | case DW_CFA_val_expression: |
| 5217 | reg = LEB (); |
| 5218 | temp = LEB (); |
| 5219 | start += temp; |
| 5220 | if (frame_need_space (fc, reg) >= 0) |
| 5221 | fc->col_type[reg] = DW_CFA_undefined; |
| 5222 | break; |
| 5223 | case DW_CFA_offset_extended_sf: |
| 5224 | case DW_CFA_val_offset_sf: |
| 5225 | reg = LEB (); SLEB (); |
| 5226 | if (frame_need_space (fc, reg) >= 0) |
| 5227 | fc->col_type[reg] = DW_CFA_undefined; |
| 5228 | break; |
| 5229 | case DW_CFA_def_cfa_sf: |
| 5230 | LEB (); SLEB (); |
| 5231 | break; |
| 5232 | case DW_CFA_def_cfa_offset_sf: |
| 5233 | SLEB (); |
| 5234 | break; |
| 5235 | case DW_CFA_MIPS_advance_loc8: |
| 5236 | start += 8; |
| 5237 | break; |
| 5238 | case DW_CFA_GNU_args_size: |
| 5239 | LEB (); |
| 5240 | break; |
| 5241 | case DW_CFA_GNU_negative_offset_extended: |
| 5242 | reg = LEB (); LEB (); |
| 5243 | if (frame_need_space (fc, reg) >= 0) |
| 5244 | fc->col_type[reg] = DW_CFA_undefined; |
| 5245 | break; |
| 5246 | default: |
| 5247 | break; |
| 5248 | } |
| 5249 | } |
| 5250 | start = tmp; |
| 5251 | } |
| 5252 | |
| 5253 | /* Now we know what registers are used, make a second pass over |
| 5254 | the chunk, this time actually printing out the info. */ |
| 5255 | |
| 5256 | while (start < block_end) |
| 5257 | { |
| 5258 | unsigned op, opa; |
| 5259 | unsigned long ul, reg, roffs; |
| 5260 | long l, ofs; |
| 5261 | dwarf_vma vma; |
| 5262 | const char *reg_prefix = ""; |
| 5263 | |
| 5264 | op = *start++; |
| 5265 | opa = op & 0x3f; |
| 5266 | if (op & 0xc0) |
| 5267 | op &= 0xc0; |
| 5268 | |
| 5269 | /* Warning: if you add any more cases to this switch, be |
| 5270 | sure to add them to the corresponding switch above. */ |
| 5271 | switch (op) |
| 5272 | { |
| 5273 | case DW_CFA_advance_loc: |
| 5274 | if (do_debug_frames_interp) |
| 5275 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5276 | else |
| 5277 | printf (" DW_CFA_advance_loc: %d to %08lx\n", |
| 5278 | opa * fc->code_factor, |
| 5279 | fc->pc_begin + opa * fc->code_factor); |
| 5280 | fc->pc_begin += opa * fc->code_factor; |
| 5281 | break; |
| 5282 | |
| 5283 | case DW_CFA_offset: |
| 5284 | roffs = LEB (); |
| 5285 | if (opa >= (unsigned int) fc->ncols) |
| 5286 | reg_prefix = bad_reg; |
| 5287 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5288 | printf (" DW_CFA_offset: %s%s at cfa%+ld\n", |
| 5289 | reg_prefix, regname (opa, 0), |
| 5290 | roffs * fc->data_factor); |
| 5291 | if (*reg_prefix == '\0') |
| 5292 | { |
| 5293 | fc->col_type[opa] = DW_CFA_offset; |
| 5294 | fc->col_offset[opa] = roffs * fc->data_factor; |
| 5295 | } |
| 5296 | break; |
| 5297 | |
| 5298 | case DW_CFA_restore: |
| 5299 | if (opa >= (unsigned int) cie->ncols |
| 5300 | || opa >= (unsigned int) fc->ncols) |
| 5301 | reg_prefix = bad_reg; |
| 5302 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5303 | printf (" DW_CFA_restore: %s%s\n", |
| 5304 | reg_prefix, regname (opa, 0)); |
| 5305 | if (*reg_prefix == '\0') |
| 5306 | { |
| 5307 | fc->col_type[opa] = cie->col_type[opa]; |
| 5308 | fc->col_offset[opa] = cie->col_offset[opa]; |
| 5309 | if (do_debug_frames_interp |
| 5310 | && fc->col_type[opa] == DW_CFA_unreferenced) |
| 5311 | fc->col_type[opa] = DW_CFA_undefined; |
| 5312 | } |
| 5313 | break; |
| 5314 | |
| 5315 | case DW_CFA_set_loc: |
| 5316 | vma = get_encoded_value (start, fc->fde_encoding, section); |
| 5317 | start += encoded_ptr_size; |
| 5318 | if (do_debug_frames_interp) |
| 5319 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5320 | else |
| 5321 | printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma); |
| 5322 | fc->pc_begin = vma; |
| 5323 | break; |
| 5324 | |
| 5325 | case DW_CFA_advance_loc1: |
| 5326 | ofs = byte_get (start, 1); start += 1; |
| 5327 | if (do_debug_frames_interp) |
| 5328 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5329 | else |
| 5330 | printf (" DW_CFA_advance_loc1: %ld to %08lx\n", |
| 5331 | ofs * fc->code_factor, |
| 5332 | fc->pc_begin + ofs * fc->code_factor); |
| 5333 | fc->pc_begin += ofs * fc->code_factor; |
| 5334 | break; |
| 5335 | |
| 5336 | case DW_CFA_advance_loc2: |
| 5337 | ofs = byte_get (start, 2); start += 2; |
| 5338 | if (do_debug_frames_interp) |
| 5339 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5340 | else |
| 5341 | printf (" DW_CFA_advance_loc2: %ld to %08lx\n", |
| 5342 | ofs * fc->code_factor, |
| 5343 | fc->pc_begin + ofs * fc->code_factor); |
| 5344 | fc->pc_begin += ofs * fc->code_factor; |
| 5345 | break; |
| 5346 | |
| 5347 | case DW_CFA_advance_loc4: |
| 5348 | ofs = byte_get (start, 4); start += 4; |
| 5349 | if (do_debug_frames_interp) |
| 5350 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5351 | else |
| 5352 | printf (" DW_CFA_advance_loc4: %ld to %08lx\n", |
| 5353 | ofs * fc->code_factor, |
| 5354 | fc->pc_begin + ofs * fc->code_factor); |
| 5355 | fc->pc_begin += ofs * fc->code_factor; |
| 5356 | break; |
| 5357 | |
| 5358 | case DW_CFA_offset_extended: |
| 5359 | reg = LEB (); |
| 5360 | roffs = LEB (); |
| 5361 | if (reg >= (unsigned int) fc->ncols) |
| 5362 | reg_prefix = bad_reg; |
| 5363 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5364 | printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n", |
| 5365 | reg_prefix, regname (reg, 0), |
| 5366 | roffs * fc->data_factor); |
| 5367 | if (*reg_prefix == '\0') |
| 5368 | { |
| 5369 | fc->col_type[reg] = DW_CFA_offset; |
| 5370 | fc->col_offset[reg] = roffs * fc->data_factor; |
| 5371 | } |
| 5372 | break; |
| 5373 | |
| 5374 | case DW_CFA_val_offset: |
| 5375 | reg = LEB (); |
| 5376 | roffs = LEB (); |
| 5377 | if (reg >= (unsigned int) fc->ncols) |
| 5378 | reg_prefix = bad_reg; |
| 5379 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5380 | printf (" DW_CFA_val_offset: %s%s at cfa%+ld\n", |
| 5381 | reg_prefix, regname (reg, 0), |
| 5382 | roffs * fc->data_factor); |
| 5383 | if (*reg_prefix == '\0') |
| 5384 | { |
| 5385 | fc->col_type[reg] = DW_CFA_val_offset; |
| 5386 | fc->col_offset[reg] = roffs * fc->data_factor; |
| 5387 | } |
| 5388 | break; |
| 5389 | |
| 5390 | case DW_CFA_restore_extended: |
| 5391 | reg = LEB (); |
| 5392 | if (reg >= (unsigned int) cie->ncols |
| 5393 | || reg >= (unsigned int) fc->ncols) |
| 5394 | reg_prefix = bad_reg; |
| 5395 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5396 | printf (" DW_CFA_restore_extended: %s%s\n", |
| 5397 | reg_prefix, regname (reg, 0)); |
| 5398 | if (*reg_prefix == '\0') |
| 5399 | { |
| 5400 | fc->col_type[reg] = cie->col_type[reg]; |
| 5401 | fc->col_offset[reg] = cie->col_offset[reg]; |
| 5402 | } |
| 5403 | break; |
| 5404 | |
| 5405 | case DW_CFA_undefined: |
| 5406 | reg = LEB (); |
| 5407 | if (reg >= (unsigned int) fc->ncols) |
| 5408 | reg_prefix = bad_reg; |
| 5409 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5410 | printf (" DW_CFA_undefined: %s%s\n", |
| 5411 | reg_prefix, regname (reg, 0)); |
| 5412 | if (*reg_prefix == '\0') |
| 5413 | { |
| 5414 | fc->col_type[reg] = DW_CFA_undefined; |
| 5415 | fc->col_offset[reg] = 0; |
| 5416 | } |
| 5417 | break; |
| 5418 | |
| 5419 | case DW_CFA_same_value: |
| 5420 | reg = LEB (); |
| 5421 | if (reg >= (unsigned int) fc->ncols) |
| 5422 | reg_prefix = bad_reg; |
| 5423 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5424 | printf (" DW_CFA_same_value: %s%s\n", |
| 5425 | reg_prefix, regname (reg, 0)); |
| 5426 | if (*reg_prefix == '\0') |
| 5427 | { |
| 5428 | fc->col_type[reg] = DW_CFA_same_value; |
| 5429 | fc->col_offset[reg] = 0; |
| 5430 | } |
| 5431 | break; |
| 5432 | |
| 5433 | case DW_CFA_register: |
| 5434 | reg = LEB (); |
| 5435 | roffs = LEB (); |
| 5436 | if (reg >= (unsigned int) fc->ncols) |
| 5437 | reg_prefix = bad_reg; |
| 5438 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5439 | { |
| 5440 | printf (" DW_CFA_register: %s%s in ", |
| 5441 | reg_prefix, regname (reg, 0)); |
| 5442 | puts (regname (roffs, 0)); |
| 5443 | } |
| 5444 | if (*reg_prefix == '\0') |
| 5445 | { |
| 5446 | fc->col_type[reg] = DW_CFA_register; |
| 5447 | fc->col_offset[reg] = roffs; |
| 5448 | } |
| 5449 | break; |
| 5450 | |
| 5451 | case DW_CFA_remember_state: |
| 5452 | if (! do_debug_frames_interp) |
| 5453 | printf (" DW_CFA_remember_state\n"); |
| 5454 | rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk)); |
| 5455 | rs->ncols = fc->ncols; |
| 5456 | rs->col_type = (short int *) xcmalloc (rs->ncols, |
| 5457 | sizeof (short int)); |
| 5458 | rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (int)); |
| 5459 | memcpy (rs->col_type, fc->col_type, rs->ncols); |
| 5460 | memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int)); |
| 5461 | rs->next = remembered_state; |
| 5462 | remembered_state = rs; |
| 5463 | break; |
| 5464 | |
| 5465 | case DW_CFA_restore_state: |
| 5466 | if (! do_debug_frames_interp) |
| 5467 | printf (" DW_CFA_restore_state\n"); |
| 5468 | rs = remembered_state; |
| 5469 | if (rs) |
| 5470 | { |
| 5471 | remembered_state = rs->next; |
| 5472 | frame_need_space (fc, rs->ncols - 1); |
| 5473 | memcpy (fc->col_type, rs->col_type, rs->ncols); |
| 5474 | memcpy (fc->col_offset, rs->col_offset, |
| 5475 | rs->ncols * sizeof (int)); |
| 5476 | free (rs->col_type); |
| 5477 | free (rs->col_offset); |
| 5478 | free (rs); |
| 5479 | } |
| 5480 | else if (do_debug_frames_interp) |
| 5481 | printf ("Mismatched DW_CFA_restore_state\n"); |
| 5482 | break; |
| 5483 | |
| 5484 | case DW_CFA_def_cfa: |
| 5485 | fc->cfa_reg = LEB (); |
| 5486 | fc->cfa_offset = LEB (); |
| 5487 | fc->cfa_exp = 0; |
| 5488 | if (! do_debug_frames_interp) |
| 5489 | printf (" DW_CFA_def_cfa: %s ofs %d\n", |
| 5490 | regname (fc->cfa_reg, 0), fc->cfa_offset); |
| 5491 | break; |
| 5492 | |
| 5493 | case DW_CFA_def_cfa_register: |
| 5494 | fc->cfa_reg = LEB (); |
| 5495 | fc->cfa_exp = 0; |
| 5496 | if (! do_debug_frames_interp) |
| 5497 | printf (" DW_CFA_def_cfa_register: %s\n", |
| 5498 | regname (fc->cfa_reg, 0)); |
| 5499 | break; |
| 5500 | |
| 5501 | case DW_CFA_def_cfa_offset: |
| 5502 | fc->cfa_offset = LEB (); |
| 5503 | if (! do_debug_frames_interp) |
| 5504 | printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset); |
| 5505 | break; |
| 5506 | |
| 5507 | case DW_CFA_nop: |
| 5508 | if (! do_debug_frames_interp) |
| 5509 | printf (" DW_CFA_nop\n"); |
| 5510 | break; |
| 5511 | |
| 5512 | case DW_CFA_def_cfa_expression: |
| 5513 | ul = LEB (); |
| 5514 | if (! do_debug_frames_interp) |
| 5515 | { |
| 5516 | printf (" DW_CFA_def_cfa_expression ("); |
| 5517 | decode_location_expression (start, eh_addr_size, 0, -1, |
| 5518 | ul, 0, section); |
| 5519 | printf (")\n"); |
| 5520 | } |
| 5521 | fc->cfa_exp = 1; |
| 5522 | start += ul; |
| 5523 | break; |
| 5524 | |
| 5525 | case DW_CFA_expression: |
| 5526 | reg = LEB (); |
| 5527 | ul = LEB (); |
| 5528 | if (reg >= (unsigned int) fc->ncols) |
| 5529 | reg_prefix = bad_reg; |
| 5530 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5531 | { |
| 5532 | printf (" DW_CFA_expression: %s%s (", |
| 5533 | reg_prefix, regname (reg, 0)); |
| 5534 | decode_location_expression (start, eh_addr_size, 0, -1, |
| 5535 | ul, 0, section); |
| 5536 | printf (")\n"); |
| 5537 | } |
| 5538 | if (*reg_prefix == '\0') |
| 5539 | fc->col_type[reg] = DW_CFA_expression; |
| 5540 | start += ul; |
| 5541 | break; |
| 5542 | |
| 5543 | case DW_CFA_val_expression: |
| 5544 | reg = LEB (); |
| 5545 | ul = LEB (); |
| 5546 | if (reg >= (unsigned int) fc->ncols) |
| 5547 | reg_prefix = bad_reg; |
| 5548 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5549 | { |
| 5550 | printf (" DW_CFA_val_expression: %s%s (", |
| 5551 | reg_prefix, regname (reg, 0)); |
| 5552 | decode_location_expression (start, eh_addr_size, 0, -1, |
| 5553 | ul, 0, section); |
| 5554 | printf (")\n"); |
| 5555 | } |
| 5556 | if (*reg_prefix == '\0') |
| 5557 | fc->col_type[reg] = DW_CFA_val_expression; |
| 5558 | start += ul; |
| 5559 | break; |
| 5560 | |
| 5561 | case DW_CFA_offset_extended_sf: |
| 5562 | reg = LEB (); |
| 5563 | l = SLEB (); |
| 5564 | if (frame_need_space (fc, reg) < 0) |
| 5565 | reg_prefix = bad_reg; |
| 5566 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5567 | printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n", |
| 5568 | reg_prefix, regname (reg, 0), |
| 5569 | l * fc->data_factor); |
| 5570 | if (*reg_prefix == '\0') |
| 5571 | { |
| 5572 | fc->col_type[reg] = DW_CFA_offset; |
| 5573 | fc->col_offset[reg] = l * fc->data_factor; |
| 5574 | } |
| 5575 | break; |
| 5576 | |
| 5577 | case DW_CFA_val_offset_sf: |
| 5578 | reg = LEB (); |
| 5579 | l = SLEB (); |
| 5580 | if (frame_need_space (fc, reg) < 0) |
| 5581 | reg_prefix = bad_reg; |
| 5582 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5583 | printf (" DW_CFA_val_offset_sf: %s%s at cfa%+ld\n", |
| 5584 | reg_prefix, regname (reg, 0), |
| 5585 | l * fc->data_factor); |
| 5586 | if (*reg_prefix == '\0') |
| 5587 | { |
| 5588 | fc->col_type[reg] = DW_CFA_val_offset; |
| 5589 | fc->col_offset[reg] = l * fc->data_factor; |
| 5590 | } |
| 5591 | break; |
| 5592 | |
| 5593 | case DW_CFA_def_cfa_sf: |
| 5594 | fc->cfa_reg = LEB (); |
| 5595 | fc->cfa_offset = SLEB (); |
| 5596 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; |
| 5597 | fc->cfa_exp = 0; |
| 5598 | if (! do_debug_frames_interp) |
| 5599 | printf (" DW_CFA_def_cfa_sf: %s ofs %d\n", |
| 5600 | regname (fc->cfa_reg, 0), fc->cfa_offset); |
| 5601 | break; |
| 5602 | |
| 5603 | case DW_CFA_def_cfa_offset_sf: |
| 5604 | fc->cfa_offset = SLEB (); |
| 5605 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; |
| 5606 | if (! do_debug_frames_interp) |
| 5607 | printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset); |
| 5608 | break; |
| 5609 | |
| 5610 | case DW_CFA_MIPS_advance_loc8: |
| 5611 | ofs = byte_get (start, 8); start += 8; |
| 5612 | if (do_debug_frames_interp) |
| 5613 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5614 | else |
| 5615 | printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n", |
| 5616 | ofs * fc->code_factor, |
| 5617 | fc->pc_begin + ofs * fc->code_factor); |
| 5618 | fc->pc_begin += ofs * fc->code_factor; |
| 5619 | break; |
| 5620 | |
| 5621 | case DW_CFA_GNU_window_save: |
| 5622 | if (! do_debug_frames_interp) |
| 5623 | printf (" DW_CFA_GNU_window_save\n"); |
| 5624 | break; |
| 5625 | |
| 5626 | case DW_CFA_GNU_args_size: |
| 5627 | ul = LEB (); |
| 5628 | if (! do_debug_frames_interp) |
| 5629 | printf (" DW_CFA_GNU_args_size: %ld\n", ul); |
| 5630 | break; |
| 5631 | |
| 5632 | case DW_CFA_GNU_negative_offset_extended: |
| 5633 | reg = LEB (); |
| 5634 | l = - LEB (); |
| 5635 | if (frame_need_space (fc, reg) < 0) |
| 5636 | reg_prefix = bad_reg; |
| 5637 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5638 | printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n", |
| 5639 | reg_prefix, regname (reg, 0), |
| 5640 | l * fc->data_factor); |
| 5641 | if (*reg_prefix == '\0') |
| 5642 | { |
| 5643 | fc->col_type[reg] = DW_CFA_offset; |
| 5644 | fc->col_offset[reg] = l * fc->data_factor; |
| 5645 | } |
| 5646 | break; |
| 5647 | |
| 5648 | default: |
| 5649 | if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user) |
| 5650 | printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op); |
| 5651 | else |
| 5652 | warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op); |
| 5653 | start = block_end; |
| 5654 | } |
| 5655 | } |
| 5656 | |
| 5657 | if (do_debug_frames_interp) |
| 5658 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5659 | |
| 5660 | start = block_end; |
| 5661 | eh_addr_size = saved_eh_addr_size; |
| 5662 | } |
| 5663 | |
| 5664 | printf ("\n"); |
| 5665 | |
| 5666 | return 1; |
| 5667 | } |
| 5668 | |
| 5669 | #undef GET |
| 5670 | #undef LEB |
| 5671 | #undef SLEB |
| 5672 | |
| 5673 | static int |
| 5674 | display_gdb_index (struct dwarf_section *section, |
| 5675 | void *file ATTRIBUTE_UNUSED) |
| 5676 | { |
| 5677 | unsigned char *start = section->start; |
| 5678 | uint32_t version; |
| 5679 | uint32_t cu_list_offset, tu_list_offset; |
| 5680 | uint32_t address_table_offset, symbol_table_offset, constant_pool_offset; |
| 5681 | unsigned int cu_list_elements, tu_list_elements; |
| 5682 | unsigned int address_table_size, symbol_table_slots; |
| 5683 | unsigned char *cu_list, *tu_list; |
| 5684 | unsigned char *address_table, *symbol_table, *constant_pool; |
| 5685 | unsigned int i; |
| 5686 | |
| 5687 | /* The documentation for the format of this file is in gdb/dwarf2read.c. */ |
| 5688 | |
| 5689 | printf (_("Contents of the %s section:\n"), section->name); |
| 5690 | |
| 5691 | if (section->size < 6 * sizeof (uint32_t)) |
| 5692 | { |
| 5693 | warn (_("Truncated header in the %s section.\n"), section->name); |
| 5694 | return 0; |
| 5695 | } |
| 5696 | |
| 5697 | version = byte_get_little_endian (start, 4); |
| 5698 | printf (_("Version %ld\n"), (long) version); |
| 5699 | |
| 5700 | /* Prior versions are obsolete, and future versions may not be |
| 5701 | backwards compatible. */ |
| 5702 | if (version < 3 || version > 7) |
| 5703 | { |
| 5704 | warn (_("Unsupported version %lu.\n"), (unsigned long) version); |
| 5705 | return 0; |
| 5706 | } |
| 5707 | if (version < 4) |
| 5708 | warn (_("The address table data in version 3 may be wrong.\n")); |
| 5709 | if (version < 5) |
| 5710 | warn (_("Version 4 does not support case insensitive lookups.\n")); |
| 5711 | if (version < 6) |
| 5712 | warn (_("Version 5 does not include inlined functions.\n")); |
| 5713 | if (version < 7) |
| 5714 | warn (_("Version 6 does not include symbol attributes.\n")); |
| 5715 | |
| 5716 | cu_list_offset = byte_get_little_endian (start + 4, 4); |
| 5717 | tu_list_offset = byte_get_little_endian (start + 8, 4); |
| 5718 | address_table_offset = byte_get_little_endian (start + 12, 4); |
| 5719 | symbol_table_offset = byte_get_little_endian (start + 16, 4); |
| 5720 | constant_pool_offset = byte_get_little_endian (start + 20, 4); |
| 5721 | |
| 5722 | if (cu_list_offset > section->size |
| 5723 | || tu_list_offset > section->size |
| 5724 | || address_table_offset > section->size |
| 5725 | || symbol_table_offset > section->size |
| 5726 | || constant_pool_offset > section->size) |
| 5727 | { |
| 5728 | warn (_("Corrupt header in the %s section.\n"), section->name); |
| 5729 | return 0; |
| 5730 | } |
| 5731 | |
| 5732 | cu_list_elements = (tu_list_offset - cu_list_offset) / 8; |
| 5733 | tu_list_elements = (address_table_offset - tu_list_offset) / 8; |
| 5734 | address_table_size = symbol_table_offset - address_table_offset; |
| 5735 | symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8; |
| 5736 | |
| 5737 | cu_list = start + cu_list_offset; |
| 5738 | tu_list = start + tu_list_offset; |
| 5739 | address_table = start + address_table_offset; |
| 5740 | symbol_table = start + symbol_table_offset; |
| 5741 | constant_pool = start + constant_pool_offset; |
| 5742 | |
| 5743 | printf (_("\nCU table:\n")); |
| 5744 | for (i = 0; i < cu_list_elements; i += 2) |
| 5745 | { |
| 5746 | uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8); |
| 5747 | uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8); |
| 5748 | |
| 5749 | printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2, |
| 5750 | (unsigned long) cu_offset, |
| 5751 | (unsigned long) (cu_offset + cu_length - 1)); |
| 5752 | } |
| 5753 | |
| 5754 | printf (_("\nTU table:\n")); |
| 5755 | for (i = 0; i < tu_list_elements; i += 3) |
| 5756 | { |
| 5757 | uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8); |
| 5758 | uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8); |
| 5759 | uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8); |
| 5760 | |
| 5761 | printf (_("[%3u] 0x%lx 0x%lx "), i / 3, |
| 5762 | (unsigned long) tu_offset, |
| 5763 | (unsigned long) type_offset); |
| 5764 | print_dwarf_vma (signature, 8); |
| 5765 | printf ("\n"); |
| 5766 | } |
| 5767 | |
| 5768 | printf (_("\nAddress table:\n")); |
| 5769 | for (i = 0; i < address_table_size; i += 2 * 8 + 4) |
| 5770 | { |
| 5771 | uint64_t low = byte_get_little_endian (address_table + i, 8); |
| 5772 | uint64_t high = byte_get_little_endian (address_table + i + 8, 8); |
| 5773 | uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4); |
| 5774 | |
| 5775 | print_dwarf_vma (low, 8); |
| 5776 | print_dwarf_vma (high, 8); |
| 5777 | printf (_("%lu\n"), (unsigned long) cu_index); |
| 5778 | } |
| 5779 | |
| 5780 | printf (_("\nSymbol table:\n")); |
| 5781 | for (i = 0; i < symbol_table_slots; ++i) |
| 5782 | { |
| 5783 | uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4); |
| 5784 | uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4); |
| 5785 | uint32_t num_cus, cu; |
| 5786 | |
| 5787 | if (name_offset != 0 |
| 5788 | || cu_vector_offset != 0) |
| 5789 | { |
| 5790 | unsigned int j; |
| 5791 | |
| 5792 | printf ("[%3u] %s:", i, constant_pool + name_offset); |
| 5793 | num_cus = byte_get_little_endian (constant_pool + cu_vector_offset, 4); |
| 5794 | if (num_cus > 1) |
| 5795 | printf ("\n"); |
| 5796 | for (j = 0; j < num_cus; ++j) |
| 5797 | { |
| 5798 | int is_static; |
| 5799 | gdb_index_symbol_kind kind; |
| 5800 | |
| 5801 | cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4); |
| 5802 | is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (cu); |
| 5803 | kind = GDB_INDEX_SYMBOL_KIND_VALUE (cu); |
| 5804 | cu = GDB_INDEX_CU_VALUE (cu); |
| 5805 | /* Convert to TU number if it's for a type unit. */ |
| 5806 | if (cu >= cu_list_elements / 2) |
| 5807 | printf ("%cT%lu", num_cus > 1 ? '\t' : ' ', |
| 5808 | (unsigned long) (cu - cu_list_elements / 2)); |
| 5809 | else |
| 5810 | printf ("%c%lu", num_cus > 1 ? '\t' : ' ', (unsigned long) cu); |
| 5811 | |
| 5812 | switch (kind) |
| 5813 | { |
| 5814 | case GDB_INDEX_SYMBOL_KIND_NONE: |
| 5815 | printf (_(" [no symbol information]")); |
| 5816 | break; |
| 5817 | case GDB_INDEX_SYMBOL_KIND_TYPE: |
| 5818 | printf (is_static |
| 5819 | ? _(" [static type]") |
| 5820 | : _(" [global type]")); |
| 5821 | break; |
| 5822 | case GDB_INDEX_SYMBOL_KIND_VARIABLE: |
| 5823 | printf (is_static |
| 5824 | ? _(" [static variable]") |
| 5825 | : _(" [global variable]")); |
| 5826 | break; |
| 5827 | case GDB_INDEX_SYMBOL_KIND_FUNCTION: |
| 5828 | printf (is_static |
| 5829 | ? _(" [static function]") |
| 5830 | : _(" [global function]")); |
| 5831 | break; |
| 5832 | case GDB_INDEX_SYMBOL_KIND_OTHER: |
| 5833 | printf (is_static |
| 5834 | ? _(" [static other]") |
| 5835 | : _(" [global other]")); |
| 5836 | break; |
| 5837 | default: |
| 5838 | printf (is_static |
| 5839 | ? _(" [static unknown: %d]") |
| 5840 | : _(" [global unknown: %d]"), |
| 5841 | kind); |
| 5842 | break; |
| 5843 | } |
| 5844 | if (num_cus > 1) |
| 5845 | printf ("\n"); |
| 5846 | } |
| 5847 | if (num_cus <= 1) |
| 5848 | printf ("\n"); |
| 5849 | } |
| 5850 | } |
| 5851 | |
| 5852 | return 1; |
| 5853 | } |
| 5854 | |
| 5855 | /* Collection of CU/TU section sets from .debug_cu_index and .debug_tu_index |
| 5856 | sections. Each set is stored in SHNDX_POOL as a zero-terminated list of |
| 5857 | section indexes comprising one set of debug sections from a .dwo file. */ |
| 5858 | |
| 5859 | int cu_tu_indexes_read = 0; |
| 5860 | unsigned int *shndx_pool = NULL; |
| 5861 | unsigned int shndx_pool_size = 0; |
| 5862 | unsigned int shndx_pool_used = 0; |
| 5863 | |
| 5864 | /* Pre-allocate enough space for the CU/TU sets needed. */ |
| 5865 | |
| 5866 | static void |
| 5867 | prealloc_cu_tu_list (unsigned int nshndx) |
| 5868 | { |
| 5869 | if (shndx_pool == NULL) |
| 5870 | { |
| 5871 | shndx_pool_size = nshndx; |
| 5872 | shndx_pool_used = 0; |
| 5873 | shndx_pool = (unsigned int *) xcmalloc (shndx_pool_size, |
| 5874 | sizeof (unsigned int)); |
| 5875 | } |
| 5876 | else |
| 5877 | { |
| 5878 | shndx_pool_size = shndx_pool_used + nshndx; |
| 5879 | shndx_pool = (unsigned int *) xcrealloc (shndx_pool, shndx_pool_size, |
| 5880 | sizeof (unsigned int)); |
| 5881 | } |
| 5882 | } |
| 5883 | |
| 5884 | static void |
| 5885 | add_shndx_to_cu_tu_entry (unsigned int shndx) |
| 5886 | { |
| 5887 | if (shndx_pool_used >= shndx_pool_size) |
| 5888 | { |
| 5889 | error (_("Internal error: out of space in the shndx pool.\n")); |
| 5890 | return; |
| 5891 | } |
| 5892 | shndx_pool [shndx_pool_used++] = shndx; |
| 5893 | } |
| 5894 | |
| 5895 | static void |
| 5896 | end_cu_tu_entry (void) |
| 5897 | { |
| 5898 | if (shndx_pool_used >= shndx_pool_size) |
| 5899 | { |
| 5900 | error (_("Internal error: out of space in the shndx pool.\n")); |
| 5901 | return; |
| 5902 | } |
| 5903 | shndx_pool [shndx_pool_used++] = 0; |
| 5904 | } |
| 5905 | |
| 5906 | /* Process a CU or TU index. If DO_DISPLAY is true, print the contents. */ |
| 5907 | |
| 5908 | static int |
| 5909 | process_cu_tu_index (struct dwarf_section *section, int do_display) |
| 5910 | { |
| 5911 | unsigned char *phdr = section->start; |
| 5912 | unsigned char *limit = phdr + section->size; |
| 5913 | unsigned char *phash; |
| 5914 | unsigned char *pindex; |
| 5915 | unsigned char *ppool; |
| 5916 | unsigned int version; |
| 5917 | unsigned int nused; |
| 5918 | unsigned int nslots; |
| 5919 | unsigned int i; |
| 5920 | |
| 5921 | version = byte_get (phdr, 4); |
| 5922 | nused = byte_get (phdr + 8, 4); |
| 5923 | nslots = byte_get (phdr + 12, 4); |
| 5924 | phash = phdr + 16; |
| 5925 | pindex = phash + nslots * 8; |
| 5926 | ppool = pindex + nslots * 4; |
| 5927 | |
| 5928 | if (!do_display) |
| 5929 | prealloc_cu_tu_list((limit - ppool) / 4); |
| 5930 | |
| 5931 | if (do_display) |
| 5932 | { |
| 5933 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 5934 | printf (_(" Version: %d\n"), version); |
| 5935 | printf (_(" Number of used entries: %d\n"), nused); |
| 5936 | printf (_(" Number of slots: %d\n\n"), nslots); |
| 5937 | } |
| 5938 | |
| 5939 | if (ppool > limit) |
| 5940 | { |
| 5941 | warn (_("Section %s too small for %d hash table entries\n"), |
| 5942 | section->name, nslots); |
| 5943 | return 0; |
| 5944 | } |
| 5945 | |
| 5946 | for (i = 0; i < nslots; i++) |
| 5947 | { |
| 5948 | dwarf_vma signature_high; |
| 5949 | dwarf_vma signature_low; |
| 5950 | unsigned int j; |
| 5951 | unsigned char *shndx_list; |
| 5952 | unsigned int shndx; |
| 5953 | char buf[64]; |
| 5954 | |
| 5955 | byte_get_64 (phash, &signature_high, &signature_low); |
| 5956 | if (signature_high != 0 || signature_low != 0) |
| 5957 | { |
| 5958 | j = byte_get (pindex, 4); |
| 5959 | shndx_list = ppool + j * 4; |
| 5960 | if (do_display) |
| 5961 | printf (_(" [%3d] Signature: 0x%s Sections: "), |
| 5962 | i, dwarf_vmatoa64 (signature_high, signature_low, |
| 5963 | buf, sizeof (buf))); |
| 5964 | for (;;) |
| 5965 | { |
| 5966 | if (shndx_list >= limit) |
| 5967 | { |
| 5968 | warn (_("Section %s too small for shndx pool\n"), |
| 5969 | section->name); |
| 5970 | return 0; |
| 5971 | } |
| 5972 | shndx = byte_get (shndx_list, 4); |
| 5973 | if (shndx == 0) |
| 5974 | break; |
| 5975 | if (do_display) |
| 5976 | printf (" %d", shndx); |
| 5977 | else |
| 5978 | add_shndx_to_cu_tu_entry (shndx); |
| 5979 | shndx_list += 4; |
| 5980 | } |
| 5981 | if (do_display) |
| 5982 | printf ("\n"); |
| 5983 | else |
| 5984 | end_cu_tu_entry (); |
| 5985 | } |
| 5986 | phash += 8; |
| 5987 | pindex += 4; |
| 5988 | } |
| 5989 | |
| 5990 | if (do_display) |
| 5991 | printf ("\n"); |
| 5992 | |
| 5993 | return 1; |
| 5994 | } |
| 5995 | |
| 5996 | /* Load the CU and TU indexes if present. This will build a list of |
| 5997 | section sets that we can use to associate a .debug_info.dwo section |
| 5998 | with its associated .debug_abbrev.dwo section in a .dwp file. */ |
| 5999 | |
| 6000 | static void |
| 6001 | load_cu_tu_indexes (void *file) |
| 6002 | { |
| 6003 | /* If we have already loaded (or tried to load) the CU and TU indexes |
| 6004 | then do not bother to repeat the task. */ |
| 6005 | if (cu_tu_indexes_read) |
| 6006 | return; |
| 6007 | |
| 6008 | if (load_debug_section (dwp_cu_index, file)) |
| 6009 | process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0); |
| 6010 | |
| 6011 | if (load_debug_section (dwp_tu_index, file)) |
| 6012 | process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0); |
| 6013 | |
| 6014 | cu_tu_indexes_read = 1; |
| 6015 | } |
| 6016 | |
| 6017 | /* Find the set of sections that includes section SHNDX. */ |
| 6018 | |
| 6019 | unsigned int * |
| 6020 | find_cu_tu_set (void *file, unsigned int shndx) |
| 6021 | { |
| 6022 | unsigned int i; |
| 6023 | |
| 6024 | load_cu_tu_indexes (file); |
| 6025 | |
| 6026 | /* Find SHNDX in the shndx pool. */ |
| 6027 | for (i = 0; i < shndx_pool_used; i++) |
| 6028 | if (shndx_pool [i] == shndx) |
| 6029 | break; |
| 6030 | |
| 6031 | if (i >= shndx_pool_used) |
| 6032 | return NULL; |
| 6033 | |
| 6034 | /* Now backup to find the first entry in the set. */ |
| 6035 | while (i > 0 && shndx_pool [i - 1] != 0) |
| 6036 | i--; |
| 6037 | |
| 6038 | return shndx_pool + i; |
| 6039 | } |
| 6040 | |
| 6041 | /* Display a .debug_cu_index or .debug_tu_index section. */ |
| 6042 | |
| 6043 | static int |
| 6044 | display_cu_index (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) |
| 6045 | { |
| 6046 | return process_cu_tu_index (section, 1); |
| 6047 | } |
| 6048 | |
| 6049 | static int |
| 6050 | display_debug_not_supported (struct dwarf_section *section, |
| 6051 | void *file ATTRIBUTE_UNUSED) |
| 6052 | { |
| 6053 | printf (_("Displaying the debug contents of section %s is not yet supported.\n"), |
| 6054 | section->name); |
| 6055 | |
| 6056 | return 1; |
| 6057 | } |
| 6058 | |
| 6059 | void * |
| 6060 | cmalloc (size_t nmemb, size_t size) |
| 6061 | { |
| 6062 | /* Check for overflow. */ |
| 6063 | if (nmemb >= ~(size_t) 0 / size) |
| 6064 | return NULL; |
| 6065 | else |
| 6066 | return malloc (nmemb * size); |
| 6067 | } |
| 6068 | |
| 6069 | void * |
| 6070 | xcmalloc (size_t nmemb, size_t size) |
| 6071 | { |
| 6072 | /* Check for overflow. */ |
| 6073 | if (nmemb >= ~(size_t) 0 / size) |
| 6074 | return NULL; |
| 6075 | else |
| 6076 | return xmalloc (nmemb * size); |
| 6077 | } |
| 6078 | |
| 6079 | void * |
| 6080 | xcrealloc (void *ptr, size_t nmemb, size_t size) |
| 6081 | { |
| 6082 | /* Check for overflow. */ |
| 6083 | if (nmemb >= ~(size_t) 0 / size) |
| 6084 | return NULL; |
| 6085 | else |
| 6086 | return xrealloc (ptr, nmemb * size); |
| 6087 | } |
| 6088 | |
| 6089 | void |
| 6090 | free_debug_memory (void) |
| 6091 | { |
| 6092 | unsigned int i; |
| 6093 | |
| 6094 | free_abbrevs (); |
| 6095 | |
| 6096 | for (i = 0; i < max; i++) |
| 6097 | free_debug_section ((enum dwarf_section_display_enum) i); |
| 6098 | |
| 6099 | if (debug_information != NULL) |
| 6100 | { |
| 6101 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE) |
| 6102 | { |
| 6103 | for (i = 0; i < num_debug_info_entries; i++) |
| 6104 | { |
| 6105 | if (!debug_information [i].max_loc_offsets) |
| 6106 | { |
| 6107 | free (debug_information [i].loc_offsets); |
| 6108 | free (debug_information [i].have_frame_base); |
| 6109 | } |
| 6110 | if (!debug_information [i].max_range_lists) |
| 6111 | free (debug_information [i].range_lists); |
| 6112 | } |
| 6113 | } |
| 6114 | |
| 6115 | free (debug_information); |
| 6116 | debug_information = NULL; |
| 6117 | num_debug_info_entries = 0; |
| 6118 | } |
| 6119 | } |
| 6120 | |
| 6121 | void |
| 6122 | dwarf_select_sections_by_names (const char *names) |
| 6123 | { |
| 6124 | typedef struct |
| 6125 | { |
| 6126 | const char * option; |
| 6127 | int * variable; |
| 6128 | int val; |
| 6129 | } |
| 6130 | debug_dump_long_opts; |
| 6131 | |
| 6132 | static const debug_dump_long_opts opts_table [] = |
| 6133 | { |
| 6134 | /* Please keep this table alpha- sorted. */ |
| 6135 | { "Ranges", & do_debug_ranges, 1 }, |
| 6136 | { "abbrev", & do_debug_abbrevs, 1 }, |
| 6137 | { "addr", & do_debug_addr, 1 }, |
| 6138 | { "aranges", & do_debug_aranges, 1 }, |
| 6139 | { "cu_index", & do_debug_cu_index, 1 }, |
| 6140 | { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED }, |
| 6141 | { "frames", & do_debug_frames, 1 }, |
| 6142 | { "frames-interp", & do_debug_frames_interp, 1 }, |
| 6143 | /* The special .gdb_index section. */ |
| 6144 | { "gdb_index", & do_gdb_index, 1 }, |
| 6145 | { "info", & do_debug_info, 1 }, |
| 6146 | { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */ |
| 6147 | { "loc", & do_debug_loc, 1 }, |
| 6148 | { "macro", & do_debug_macinfo, 1 }, |
| 6149 | { "pubnames", & do_debug_pubnames, 1 }, |
| 6150 | { "pubtypes", & do_debug_pubtypes, 1 }, |
| 6151 | /* This entry is for compatability |
| 6152 | with earlier versions of readelf. */ |
| 6153 | { "ranges", & do_debug_aranges, 1 }, |
| 6154 | { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, |
| 6155 | { "str", & do_debug_str, 1 }, |
| 6156 | /* These trace_* sections are used by Itanium VMS. */ |
| 6157 | { "trace_abbrev", & do_trace_abbrevs, 1 }, |
| 6158 | { "trace_aranges", & do_trace_aranges, 1 }, |
| 6159 | { "trace_info", & do_trace_info, 1 }, |
| 6160 | { NULL, NULL, 0 } |
| 6161 | }; |
| 6162 | |
| 6163 | const char *p; |
| 6164 | |
| 6165 | p = names; |
| 6166 | while (*p) |
| 6167 | { |
| 6168 | const debug_dump_long_opts * entry; |
| 6169 | |
| 6170 | for (entry = opts_table; entry->option; entry++) |
| 6171 | { |
| 6172 | size_t len = strlen (entry->option); |
| 6173 | |
| 6174 | if (strncmp (p, entry->option, len) == 0 |
| 6175 | && (p[len] == ',' || p[len] == '\0')) |
| 6176 | { |
| 6177 | * entry->variable |= entry->val; |
| 6178 | |
| 6179 | /* The --debug-dump=frames-interp option also |
| 6180 | enables the --debug-dump=frames option. */ |
| 6181 | if (do_debug_frames_interp) |
| 6182 | do_debug_frames = 1; |
| 6183 | |
| 6184 | p += len; |
| 6185 | break; |
| 6186 | } |
| 6187 | } |
| 6188 | |
| 6189 | if (entry->option == NULL) |
| 6190 | { |
| 6191 | warn (_("Unrecognized debug option '%s'\n"), p); |
| 6192 | p = strchr (p, ','); |
| 6193 | if (p == NULL) |
| 6194 | break; |
| 6195 | } |
| 6196 | |
| 6197 | if (*p == ',') |
| 6198 | p++; |
| 6199 | } |
| 6200 | } |
| 6201 | |
| 6202 | void |
| 6203 | dwarf_select_sections_by_letters (const char *letters) |
| 6204 | { |
| 6205 | unsigned int lindex = 0; |
| 6206 | |
| 6207 | while (letters[lindex]) |
| 6208 | switch (letters[lindex++]) |
| 6209 | { |
| 6210 | case 'i': |
| 6211 | do_debug_info = 1; |
| 6212 | break; |
| 6213 | |
| 6214 | case 'a': |
| 6215 | do_debug_abbrevs = 1; |
| 6216 | break; |
| 6217 | |
| 6218 | case 'l': |
| 6219 | do_debug_lines |= FLAG_DEBUG_LINES_RAW; |
| 6220 | break; |
| 6221 | |
| 6222 | case 'L': |
| 6223 | do_debug_lines |= FLAG_DEBUG_LINES_DECODED; |
| 6224 | break; |
| 6225 | |
| 6226 | case 'p': |
| 6227 | do_debug_pubnames = 1; |
| 6228 | break; |
| 6229 | |
| 6230 | case 't': |
| 6231 | do_debug_pubtypes = 1; |
| 6232 | break; |
| 6233 | |
| 6234 | case 'r': |
| 6235 | do_debug_aranges = 1; |
| 6236 | break; |
| 6237 | |
| 6238 | case 'R': |
| 6239 | do_debug_ranges = 1; |
| 6240 | break; |
| 6241 | |
| 6242 | case 'F': |
| 6243 | do_debug_frames_interp = 1; |
| 6244 | case 'f': |
| 6245 | do_debug_frames = 1; |
| 6246 | break; |
| 6247 | |
| 6248 | case 'm': |
| 6249 | do_debug_macinfo = 1; |
| 6250 | break; |
| 6251 | |
| 6252 | case 's': |
| 6253 | do_debug_str = 1; |
| 6254 | break; |
| 6255 | |
| 6256 | case 'o': |
| 6257 | do_debug_loc = 1; |
| 6258 | break; |
| 6259 | |
| 6260 | default: |
| 6261 | warn (_("Unrecognized debug option '%s'\n"), optarg); |
| 6262 | break; |
| 6263 | } |
| 6264 | } |
| 6265 | |
| 6266 | void |
| 6267 | dwarf_select_sections_all (void) |
| 6268 | { |
| 6269 | do_debug_info = 1; |
| 6270 | do_debug_abbrevs = 1; |
| 6271 | do_debug_lines = FLAG_DEBUG_LINES_RAW; |
| 6272 | do_debug_pubnames = 1; |
| 6273 | do_debug_pubtypes = 1; |
| 6274 | do_debug_aranges = 1; |
| 6275 | do_debug_ranges = 1; |
| 6276 | do_debug_frames = 1; |
| 6277 | do_debug_macinfo = 1; |
| 6278 | do_debug_str = 1; |
| 6279 | do_debug_loc = 1; |
| 6280 | do_gdb_index = 1; |
| 6281 | do_trace_info = 1; |
| 6282 | do_trace_abbrevs = 1; |
| 6283 | do_trace_aranges = 1; |
| 6284 | do_debug_addr = 1; |
| 6285 | do_debug_cu_index = 1; |
| 6286 | } |
| 6287 | |
| 6288 | struct dwarf_section_display debug_displays[] = |
| 6289 | { |
| 6290 | { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0 }, |
| 6291 | display_debug_abbrev, &do_debug_abbrevs, 0 }, |
| 6292 | { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0 }, |
| 6293 | display_debug_aranges, &do_debug_aranges, 1 }, |
| 6294 | { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0 }, |
| 6295 | display_debug_frames, &do_debug_frames, 1 }, |
| 6296 | { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev }, |
| 6297 | display_debug_info, &do_debug_info, 1 }, |
| 6298 | { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0 }, |
| 6299 | display_debug_lines, &do_debug_lines, 1 }, |
| 6300 | { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0 }, |
| 6301 | display_debug_pubnames, &do_debug_pubnames, 0 }, |
| 6302 | { { ".eh_frame", "", NULL, NULL, 0, 0, 0 }, |
| 6303 | display_debug_frames, &do_debug_frames, 1 }, |
| 6304 | { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0 }, |
| 6305 | display_debug_macinfo, &do_debug_macinfo, 0 }, |
| 6306 | { { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0 }, |
| 6307 | display_debug_macro, &do_debug_macinfo, 1 }, |
| 6308 | { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0 }, |
| 6309 | display_debug_str, &do_debug_str, 0 }, |
| 6310 | { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0 }, |
| 6311 | display_debug_loc, &do_debug_loc, 1 }, |
| 6312 | { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0 }, |
| 6313 | display_debug_pubnames, &do_debug_pubtypes, 0 }, |
| 6314 | { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0 }, |
| 6315 | display_debug_ranges, &do_debug_ranges, 1 }, |
| 6316 | { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0 }, |
| 6317 | display_debug_not_supported, NULL, 0 }, |
| 6318 | { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0 }, |
| 6319 | display_debug_not_supported, NULL, 0 }, |
| 6320 | { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev }, |
| 6321 | display_debug_types, &do_debug_info, 1 }, |
| 6322 | { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0 }, |
| 6323 | display_debug_not_supported, NULL, 0 }, |
| 6324 | { { ".gdb_index", "", NULL, NULL, 0, 0, 0 }, |
| 6325 | display_gdb_index, &do_gdb_index, 0 }, |
| 6326 | { { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev }, |
| 6327 | display_trace_info, &do_trace_info, 1 }, |
| 6328 | { { ".trace_abbrev", "", NULL, NULL, 0, 0, 0 }, |
| 6329 | display_debug_abbrev, &do_trace_abbrevs, 0 }, |
| 6330 | { { ".trace_aranges", "", NULL, NULL, 0, 0, 0 }, |
| 6331 | display_debug_aranges, &do_trace_aranges, 0 }, |
| 6332 | { { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo }, |
| 6333 | display_debug_info, &do_debug_info, 1 }, |
| 6334 | { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0 }, |
| 6335 | display_debug_abbrev, &do_debug_abbrevs, 0 }, |
| 6336 | { { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo }, |
| 6337 | display_debug_types, &do_debug_info, 1 }, |
| 6338 | { { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0 }, |
| 6339 | display_debug_lines, &do_debug_lines, 1 }, |
| 6340 | { { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0 }, |
| 6341 | display_debug_loc, &do_debug_loc, 1 }, |
| 6342 | { { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0 }, |
| 6343 | display_debug_macro, &do_debug_macinfo, 1 }, |
| 6344 | { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0 }, |
| 6345 | display_debug_macinfo, &do_debug_macinfo, 0 }, |
| 6346 | { { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0 }, |
| 6347 | display_debug_str, &do_debug_str, 1 }, |
| 6348 | { { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0 }, |
| 6349 | display_debug_str_offsets, NULL, 0 }, |
| 6350 | { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0 }, |
| 6351 | display_debug_str_offsets, NULL, 0 }, |
| 6352 | { { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0 }, |
| 6353 | display_debug_addr, &do_debug_addr, 1 }, |
| 6354 | { { ".debug_cu_index", "", NULL, NULL, 0, 0, 0 }, |
| 6355 | display_cu_index, &do_debug_cu_index, 0 }, |
| 6356 | { { ".debug_tu_index", "", NULL, NULL, 0, 0, 0 }, |
| 6357 | display_cu_index, &do_debug_cu_index, 0 }, |
| 6358 | }; |