| 1 | /* dwarf.c -- display DWARF contents of a BFD binary file |
| 2 | Copyright (C) 2005-2014 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Binutils. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
| 19 | 02110-1301, USA. */ |
| 20 | |
| 21 | #include "sysdep.h" |
| 22 | #include "libiberty.h" |
| 23 | #include "bfd.h" |
| 24 | #include "bfd_stdint.h" |
| 25 | #include "bucomm.h" |
| 26 | #include "elfcomm.h" |
| 27 | #include "elf/common.h" |
| 28 | #include "dwarf2.h" |
| 29 | #include "dwarf.h" |
| 30 | #include "gdb/gdb-index.h" |
| 31 | |
| 32 | static const char *regname (unsigned int regno, int row); |
| 33 | |
| 34 | static int have_frame_base; |
| 35 | static int need_base_address; |
| 36 | |
| 37 | static unsigned int last_pointer_size = 0; |
| 38 | static int warned_about_missing_comp_units = FALSE; |
| 39 | |
| 40 | static unsigned int num_debug_info_entries = 0; |
| 41 | static debug_info *debug_information = NULL; |
| 42 | /* Special value for num_debug_info_entries to indicate |
| 43 | that the .debug_info section could not be loaded/parsed. */ |
| 44 | #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1 |
| 45 | |
| 46 | int eh_addr_size; |
| 47 | |
| 48 | int do_debug_info; |
| 49 | int do_debug_abbrevs; |
| 50 | int do_debug_lines; |
| 51 | int do_debug_pubnames; |
| 52 | int do_debug_pubtypes; |
| 53 | int do_debug_aranges; |
| 54 | int do_debug_ranges; |
| 55 | int do_debug_frames; |
| 56 | int do_debug_frames_interp; |
| 57 | int do_debug_macinfo; |
| 58 | int do_debug_str; |
| 59 | int do_debug_loc; |
| 60 | int do_gdb_index; |
| 61 | int do_trace_info; |
| 62 | int do_trace_abbrevs; |
| 63 | int do_trace_aranges; |
| 64 | int do_debug_addr; |
| 65 | int do_debug_cu_index; |
| 66 | int do_wide; |
| 67 | |
| 68 | int dwarf_cutoff_level = -1; |
| 69 | unsigned long dwarf_start_die; |
| 70 | |
| 71 | int dwarf_check = 0; |
| 72 | |
| 73 | /* Collection of CU/TU section sets from .debug_cu_index and .debug_tu_index |
| 74 | sections. For version 1 package files, each set is stored in SHNDX_POOL |
| 75 | as a zero-terminated list of section indexes comprising one set of debug |
| 76 | sections from a .dwo file. */ |
| 77 | |
| 78 | static int cu_tu_indexes_read = 0; |
| 79 | static unsigned int *shndx_pool = NULL; |
| 80 | static unsigned int shndx_pool_size = 0; |
| 81 | static unsigned int shndx_pool_used = 0; |
| 82 | |
| 83 | /* For version 2 package files, each set contains an array of section offsets |
| 84 | and an array of section sizes, giving the offset and size of the |
| 85 | contribution from a CU or TU within one of the debug sections. |
| 86 | When displaying debug info from a package file, we need to use these |
| 87 | tables to locate the corresponding contributions to each section. */ |
| 88 | |
| 89 | struct cu_tu_set |
| 90 | { |
| 91 | uint64_t signature; |
| 92 | dwarf_vma section_offsets[DW_SECT_MAX]; |
| 93 | size_t section_sizes[DW_SECT_MAX]; |
| 94 | }; |
| 95 | |
| 96 | static int cu_count = 0; |
| 97 | static int tu_count = 0; |
| 98 | static struct cu_tu_set *cu_sets = NULL; |
| 99 | static struct cu_tu_set *tu_sets = NULL; |
| 100 | |
| 101 | static void load_cu_tu_indexes (void *file); |
| 102 | |
| 103 | /* Values for do_debug_lines. */ |
| 104 | #define FLAG_DEBUG_LINES_RAW 1 |
| 105 | #define FLAG_DEBUG_LINES_DECODED 2 |
| 106 | |
| 107 | static int |
| 108 | size_of_encoded_value (int encoding) |
| 109 | { |
| 110 | switch (encoding & 0x7) |
| 111 | { |
| 112 | default: /* ??? */ |
| 113 | case 0: return eh_addr_size; |
| 114 | case 2: return 2; |
| 115 | case 3: return 4; |
| 116 | case 4: return 8; |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | static dwarf_vma |
| 121 | get_encoded_value (unsigned char **pdata, |
| 122 | int encoding, |
| 123 | struct dwarf_section *section, |
| 124 | unsigned char * end) |
| 125 | { |
| 126 | unsigned char * data = * pdata; |
| 127 | unsigned int size = size_of_encoded_value (encoding); |
| 128 | dwarf_vma val; |
| 129 | |
| 130 | if (data + size >= end) |
| 131 | { |
| 132 | warn (_("Encoded value extends past end of section\n")); |
| 133 | * pdata = end; |
| 134 | return 0; |
| 135 | } |
| 136 | |
| 137 | /* PR 17512: file: 002-829853-0.004. */ |
| 138 | if (size > 8) |
| 139 | { |
| 140 | warn (_("Encoded size of %d is too large to read\n"), size); |
| 141 | * pdata = end; |
| 142 | return 0; |
| 143 | } |
| 144 | |
| 145 | /* PR 17512: file: 1085-5603-0.004. */ |
| 146 | if (size == 0) |
| 147 | { |
| 148 | warn (_("Encoded size of 0 is too small to read\n")); |
| 149 | * pdata = end; |
| 150 | return 0; |
| 151 | } |
| 152 | |
| 153 | if (encoding & DW_EH_PE_signed) |
| 154 | val = byte_get_signed (data, size); |
| 155 | else |
| 156 | val = byte_get (data, size); |
| 157 | |
| 158 | if ((encoding & 0x70) == DW_EH_PE_pcrel) |
| 159 | val += section->address + (data - section->start); |
| 160 | |
| 161 | * pdata = data + size; |
| 162 | return val; |
| 163 | } |
| 164 | |
| 165 | #if defined HAVE_LONG_LONG && SIZEOF_LONG_LONG > SIZEOF_LONG |
| 166 | # ifndef __MINGW32__ |
| 167 | # define DWARF_VMA_FMT "ll" |
| 168 | # define DWARF_VMA_FMT_LONG "%16.16llx" |
| 169 | # else |
| 170 | # define DWARF_VMA_FMT "I64" |
| 171 | # define DWARF_VMA_FMT_LONG "%016I64x" |
| 172 | # endif |
| 173 | #else |
| 174 | # define DWARF_VMA_FMT "l" |
| 175 | # define DWARF_VMA_FMT_LONG "%16.16lx" |
| 176 | #endif |
| 177 | |
| 178 | /* Convert a dwarf vma value into a string. Returns a pointer to a static |
| 179 | buffer containing the converted VALUE. The value is converted according |
| 180 | to the printf formating character FMTCH. If NUM_BYTES is non-zero then |
| 181 | it specifies the maximum number of bytes to be displayed in the converted |
| 182 | value and FMTCH is ignored - hex is always used. */ |
| 183 | |
| 184 | static const char * |
| 185 | dwarf_vmatoa_1 (const char *fmtch, dwarf_vma value, unsigned num_bytes) |
| 186 | { |
| 187 | /* As dwarf_vmatoa is used more then once in a printf call |
| 188 | for output, we are cycling through an fixed array of pointers |
| 189 | for return address. */ |
| 190 | static int buf_pos = 0; |
| 191 | static struct dwarf_vmatoa_buf |
| 192 | { |
| 193 | char place[64]; |
| 194 | } buf[16]; |
| 195 | char *ret; |
| 196 | |
| 197 | ret = buf[buf_pos++].place; |
| 198 | buf_pos %= ARRAY_SIZE (buf); |
| 199 | |
| 200 | if (num_bytes) |
| 201 | { |
| 202 | /* Printf does not have a way of specifiying a maximum field width for an |
| 203 | integer value, so we print the full value into a buffer and then select |
| 204 | the precision we need. */ |
| 205 | snprintf (ret, sizeof (buf[0].place), DWARF_VMA_FMT_LONG, value); |
| 206 | if (num_bytes > 8) |
| 207 | num_bytes = 8; |
| 208 | return ret + (16 - 2 * num_bytes); |
| 209 | } |
| 210 | else |
| 211 | { |
| 212 | char fmt[32]; |
| 213 | |
| 214 | sprintf (fmt, "%%%s%s", DWARF_VMA_FMT, fmtch); |
| 215 | snprintf (ret, sizeof (buf[0].place), fmt, value); |
| 216 | return ret; |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | static inline const char * |
| 221 | dwarf_vmatoa (const char * fmtch, dwarf_vma value) |
| 222 | { |
| 223 | return dwarf_vmatoa_1 (fmtch, value, 0); |
| 224 | } |
| 225 | |
| 226 | /* Print a dwarf_vma value (typically an address, offset or length) in |
| 227 | hexadecimal format, followed by a space. The length of the VALUE (and |
| 228 | hence the precision displayed) is determined by the NUM_BYTES parameter. */ |
| 229 | |
| 230 | static void |
| 231 | print_dwarf_vma (dwarf_vma value, unsigned num_bytes) |
| 232 | { |
| 233 | printf ("%s ", dwarf_vmatoa_1 (NULL, value, num_bytes)); |
| 234 | } |
| 235 | |
| 236 | /* Format a 64-bit value, given as two 32-bit values, in hex. |
| 237 | For reentrancy, this uses a buffer provided by the caller. */ |
| 238 | |
| 239 | static const char * |
| 240 | dwarf_vmatoa64 (dwarf_vma hvalue, dwarf_vma lvalue, char *buf, |
| 241 | unsigned int buf_len) |
| 242 | { |
| 243 | int len = 0; |
| 244 | |
| 245 | if (hvalue == 0) |
| 246 | snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", lvalue); |
| 247 | else |
| 248 | { |
| 249 | len = snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", hvalue); |
| 250 | snprintf (buf + len, buf_len - len, |
| 251 | "%08" DWARF_VMA_FMT "x", lvalue); |
| 252 | } |
| 253 | |
| 254 | return buf; |
| 255 | } |
| 256 | |
| 257 | /* Read in a LEB128 encoded value starting at address DATA. |
| 258 | If SIGN is true, return a signed LEB128 value. |
| 259 | If LENGTH_RETURN is not NULL, return in it the number of bytes read. |
| 260 | No bytes will be read at address END or beyond. */ |
| 261 | |
| 262 | dwarf_vma |
| 263 | read_leb128 (unsigned char *data, |
| 264 | unsigned int *length_return, |
| 265 | bfd_boolean sign, |
| 266 | const unsigned char * const end) |
| 267 | { |
| 268 | dwarf_vma result = 0; |
| 269 | unsigned int num_read = 0; |
| 270 | unsigned int shift = 0; |
| 271 | unsigned char byte = 0; |
| 272 | |
| 273 | while (data < end) |
| 274 | { |
| 275 | byte = *data++; |
| 276 | num_read++; |
| 277 | |
| 278 | result |= ((dwarf_vma) (byte & 0x7f)) << shift; |
| 279 | |
| 280 | shift += 7; |
| 281 | if ((byte & 0x80) == 0) |
| 282 | break; |
| 283 | } |
| 284 | |
| 285 | if (length_return != NULL) |
| 286 | *length_return = num_read; |
| 287 | |
| 288 | if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40)) |
| 289 | result |= (dwarf_vma) -1 << shift; |
| 290 | |
| 291 | return result; |
| 292 | } |
| 293 | |
| 294 | /* Create a signed version to avoid painful typecasts. */ |
| 295 | static inline dwarf_signed_vma |
| 296 | read_sleb128 (unsigned char * data, |
| 297 | unsigned int * length_return, |
| 298 | const unsigned char * const end) |
| 299 | { |
| 300 | return (dwarf_signed_vma) read_leb128 (data, length_return, TRUE, end); |
| 301 | } |
| 302 | |
| 303 | static inline dwarf_vma |
| 304 | read_uleb128 (unsigned char * data, |
| 305 | unsigned int * length_return, |
| 306 | const unsigned char * const end) |
| 307 | { |
| 308 | return read_leb128 (data, length_return, FALSE, end); |
| 309 | } |
| 310 | |
| 311 | #define SAFE_BYTE_GET(VAL, PTR, AMOUNT, END) \ |
| 312 | do \ |
| 313 | { \ |
| 314 | int dummy [sizeof (VAL) < (AMOUNT) ? -1 : 1] ATTRIBUTE_UNUSED ; \ |
| 315 | unsigned int amount = (AMOUNT); \ |
| 316 | if (((PTR) + amount) >= (END)) \ |
| 317 | { \ |
| 318 | if ((PTR) < (END)) \ |
| 319 | amount = (END) - (PTR); \ |
| 320 | else \ |
| 321 | amount = 0; \ |
| 322 | } \ |
| 323 | if (amount == 0 || amount > 8) \ |
| 324 | VAL = 0; \ |
| 325 | else \ |
| 326 | VAL = byte_get ((PTR), amount); \ |
| 327 | } \ |
| 328 | while (0) |
| 329 | |
| 330 | #define SAFE_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \ |
| 331 | do \ |
| 332 | { \ |
| 333 | SAFE_BYTE_GET (VAL, PTR, AMOUNT, END); \ |
| 334 | PTR += AMOUNT; \ |
| 335 | } \ |
| 336 | while (0) |
| 337 | |
| 338 | #define SAFE_SIGNED_BYTE_GET(VAL, PTR, AMOUNT, END) \ |
| 339 | do \ |
| 340 | { \ |
| 341 | unsigned int amount = (AMOUNT); \ |
| 342 | if (((PTR) + amount) >= (END)) \ |
| 343 | { \ |
| 344 | if ((PTR) < (END)) \ |
| 345 | amount = (END) - (PTR); \ |
| 346 | else \ |
| 347 | amount = 0; \ |
| 348 | } \ |
| 349 | if (amount) \ |
| 350 | VAL = byte_get_signed ((PTR), amount); \ |
| 351 | else \ |
| 352 | VAL = 0; \ |
| 353 | } \ |
| 354 | while (0) |
| 355 | |
| 356 | #define SAFE_SIGNED_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \ |
| 357 | do \ |
| 358 | { \ |
| 359 | SAFE_SIGNED_BYTE_GET (VAL, PTR, AMOUNT, END); \ |
| 360 | PTR += AMOUNT; \ |
| 361 | } \ |
| 362 | while (0) |
| 363 | |
| 364 | #define SAFE_BYTE_GET64(PTR, HIGH, LOW, END) \ |
| 365 | do \ |
| 366 | { \ |
| 367 | if (((PTR) + 8) <= (END)) \ |
| 368 | { \ |
| 369 | byte_get_64 ((PTR), (HIGH), (LOW)); \ |
| 370 | } \ |
| 371 | else \ |
| 372 | { \ |
| 373 | * (LOW) = * (HIGH) = 0; \ |
| 374 | } \ |
| 375 | } \ |
| 376 | while (0) |
| 377 | |
| 378 | typedef struct State_Machine_Registers |
| 379 | { |
| 380 | dwarf_vma address; |
| 381 | unsigned int file; |
| 382 | unsigned int line; |
| 383 | unsigned int column; |
| 384 | int is_stmt; |
| 385 | int basic_block; |
| 386 | unsigned char op_index; |
| 387 | unsigned char end_sequence; |
| 388 | /* This variable hold the number of the last entry seen |
| 389 | in the File Table. */ |
| 390 | unsigned int last_file_entry; |
| 391 | } SMR; |
| 392 | |
| 393 | static SMR state_machine_regs; |
| 394 | |
| 395 | static void |
| 396 | reset_state_machine (int is_stmt) |
| 397 | { |
| 398 | state_machine_regs.address = 0; |
| 399 | state_machine_regs.op_index = 0; |
| 400 | state_machine_regs.file = 1; |
| 401 | state_machine_regs.line = 1; |
| 402 | state_machine_regs.column = 0; |
| 403 | state_machine_regs.is_stmt = is_stmt; |
| 404 | state_machine_regs.basic_block = 0; |
| 405 | state_machine_regs.end_sequence = 0; |
| 406 | state_machine_regs.last_file_entry = 0; |
| 407 | } |
| 408 | |
| 409 | /* Handled an extend line op. |
| 410 | Returns the number of bytes read. */ |
| 411 | |
| 412 | static int |
| 413 | process_extended_line_op (unsigned char * data, |
| 414 | int is_stmt, |
| 415 | unsigned char * end) |
| 416 | { |
| 417 | unsigned char op_code; |
| 418 | unsigned int bytes_read; |
| 419 | unsigned int len; |
| 420 | unsigned char *name; |
| 421 | unsigned char *orig_data = data; |
| 422 | dwarf_vma adr; |
| 423 | |
| 424 | len = read_uleb128 (data, & bytes_read, end); |
| 425 | data += bytes_read; |
| 426 | |
| 427 | if (len == 0 || data == end || len > (uintptr_t) (end - data)) |
| 428 | { |
| 429 | warn (_("Badly formed extended line op encountered!\n")); |
| 430 | return bytes_read; |
| 431 | } |
| 432 | |
| 433 | len += bytes_read; |
| 434 | op_code = *data++; |
| 435 | |
| 436 | printf (_(" Extended opcode %d: "), op_code); |
| 437 | |
| 438 | switch (op_code) |
| 439 | { |
| 440 | case DW_LNE_end_sequence: |
| 441 | printf (_("End of Sequence\n\n")); |
| 442 | reset_state_machine (is_stmt); |
| 443 | break; |
| 444 | |
| 445 | case DW_LNE_set_address: |
| 446 | /* PR 17512: file: 002-100480-0.004. */ |
| 447 | if (len - bytes_read - 1 > 8) |
| 448 | warn (_("Length (%d) of DW_LNE_set_address op is too long\n"), |
| 449 | len - bytes_read - 1); |
| 450 | SAFE_BYTE_GET (adr, data, len - bytes_read - 1, end); |
| 451 | printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", adr)); |
| 452 | state_machine_regs.address = adr; |
| 453 | state_machine_regs.op_index = 0; |
| 454 | break; |
| 455 | |
| 456 | case DW_LNE_define_file: |
| 457 | printf (_("define new File Table entry\n")); |
| 458 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); |
| 459 | printf (" %d\t", ++state_machine_regs.last_file_entry); |
| 460 | |
| 461 | name = data; |
| 462 | data += strnlen ((char *) data, end - data) + 1; |
| 463 | printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| 464 | data += bytes_read; |
| 465 | printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| 466 | data += bytes_read; |
| 467 | printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| 468 | data += bytes_read; |
| 469 | printf ("%s\n\n", name); |
| 470 | |
| 471 | if (((unsigned int) (data - orig_data) != len) || data == end) |
| 472 | warn (_("DW_LNE_define_file: Bad opcode length\n")); |
| 473 | break; |
| 474 | |
| 475 | case DW_LNE_set_discriminator: |
| 476 | printf (_("set Discriminator to %s\n"), |
| 477 | dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| 478 | break; |
| 479 | |
| 480 | /* HP extensions. */ |
| 481 | case DW_LNE_HP_negate_is_UV_update: |
| 482 | printf ("DW_LNE_HP_negate_is_UV_update\n"); |
| 483 | break; |
| 484 | case DW_LNE_HP_push_context: |
| 485 | printf ("DW_LNE_HP_push_context\n"); |
| 486 | break; |
| 487 | case DW_LNE_HP_pop_context: |
| 488 | printf ("DW_LNE_HP_pop_context\n"); |
| 489 | break; |
| 490 | case DW_LNE_HP_set_file_line_column: |
| 491 | printf ("DW_LNE_HP_set_file_line_column\n"); |
| 492 | break; |
| 493 | case DW_LNE_HP_set_routine_name: |
| 494 | printf ("DW_LNE_HP_set_routine_name\n"); |
| 495 | break; |
| 496 | case DW_LNE_HP_set_sequence: |
| 497 | printf ("DW_LNE_HP_set_sequence\n"); |
| 498 | break; |
| 499 | case DW_LNE_HP_negate_post_semantics: |
| 500 | printf ("DW_LNE_HP_negate_post_semantics\n"); |
| 501 | break; |
| 502 | case DW_LNE_HP_negate_function_exit: |
| 503 | printf ("DW_LNE_HP_negate_function_exit\n"); |
| 504 | break; |
| 505 | case DW_LNE_HP_negate_front_end_logical: |
| 506 | printf ("DW_LNE_HP_negate_front_end_logical\n"); |
| 507 | break; |
| 508 | case DW_LNE_HP_define_proc: |
| 509 | printf ("DW_LNE_HP_define_proc\n"); |
| 510 | break; |
| 511 | case DW_LNE_HP_source_file_correlation: |
| 512 | { |
| 513 | unsigned char *edata = data + len - bytes_read - 1; |
| 514 | |
| 515 | printf ("DW_LNE_HP_source_file_correlation\n"); |
| 516 | |
| 517 | while (data < edata) |
| 518 | { |
| 519 | unsigned int opc; |
| 520 | |
| 521 | opc = read_uleb128 (data, & bytes_read, edata); |
| 522 | data += bytes_read; |
| 523 | |
| 524 | switch (opc) |
| 525 | { |
| 526 | case DW_LNE_HP_SFC_formfeed: |
| 527 | printf (" DW_LNE_HP_SFC_formfeed\n"); |
| 528 | break; |
| 529 | case DW_LNE_HP_SFC_set_listing_line: |
| 530 | printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n", |
| 531 | dwarf_vmatoa ("u", |
| 532 | read_uleb128 (data, & bytes_read, edata))); |
| 533 | data += bytes_read; |
| 534 | break; |
| 535 | case DW_LNE_HP_SFC_associate: |
| 536 | printf (" DW_LNE_HP_SFC_associate "); |
| 537 | printf ("(%s", |
| 538 | dwarf_vmatoa ("u", |
| 539 | read_uleb128 (data, & bytes_read, edata))); |
| 540 | data += bytes_read; |
| 541 | printf (",%s", |
| 542 | dwarf_vmatoa ("u", |
| 543 | read_uleb128 (data, & bytes_read, edata))); |
| 544 | data += bytes_read; |
| 545 | printf (",%s)\n", |
| 546 | dwarf_vmatoa ("u", |
| 547 | read_uleb128 (data, & bytes_read, edata))); |
| 548 | data += bytes_read; |
| 549 | break; |
| 550 | default: |
| 551 | printf (_(" UNKNOWN DW_LNE_HP_SFC opcode (%u)\n"), opc); |
| 552 | data = edata; |
| 553 | break; |
| 554 | } |
| 555 | } |
| 556 | } |
| 557 | break; |
| 558 | |
| 559 | default: |
| 560 | { |
| 561 | unsigned int rlen = len - bytes_read - 1; |
| 562 | |
| 563 | if (op_code >= DW_LNE_lo_user |
| 564 | /* The test against DW_LNW_hi_user is redundant due to |
| 565 | the limited range of the unsigned char data type used |
| 566 | for op_code. */ |
| 567 | /*&& op_code <= DW_LNE_hi_user*/) |
| 568 | printf (_("user defined: ")); |
| 569 | else |
| 570 | printf (_("UNKNOWN: ")); |
| 571 | printf (_("length %d ["), rlen); |
| 572 | for (; rlen; rlen--) |
| 573 | printf (" %02x", *data++); |
| 574 | printf ("]\n"); |
| 575 | } |
| 576 | break; |
| 577 | } |
| 578 | |
| 579 | return len; |
| 580 | } |
| 581 | |
| 582 | static const unsigned char * |
| 583 | fetch_indirect_string (dwarf_vma offset) |
| 584 | { |
| 585 | struct dwarf_section *section = &debug_displays [str].section; |
| 586 | |
| 587 | if (section->start == NULL) |
| 588 | return (const unsigned char *) _("<no .debug_str section>"); |
| 589 | |
| 590 | if (offset > section->size) |
| 591 | { |
| 592 | warn (_("DW_FORM_strp offset too big: %s\n"), |
| 593 | dwarf_vmatoa ("x", offset)); |
| 594 | return (const unsigned char *) _("<offset is too big>"); |
| 595 | } |
| 596 | |
| 597 | return (const unsigned char *) section->start + offset; |
| 598 | } |
| 599 | |
| 600 | static const char * |
| 601 | fetch_indexed_string (dwarf_vma idx, struct cu_tu_set *this_set, |
| 602 | dwarf_vma offset_size, int dwo) |
| 603 | { |
| 604 | enum dwarf_section_display_enum str_sec_idx = dwo ? str_dwo : str; |
| 605 | enum dwarf_section_display_enum idx_sec_idx = dwo ? str_index_dwo : str_index; |
| 606 | struct dwarf_section *index_section = &debug_displays [idx_sec_idx].section; |
| 607 | struct dwarf_section *str_section = &debug_displays [str_sec_idx].section; |
| 608 | dwarf_vma index_offset = idx * offset_size; |
| 609 | dwarf_vma str_offset; |
| 610 | |
| 611 | if (index_section->start == NULL) |
| 612 | return (dwo ? _("<no .debug_str_offsets.dwo section>") |
| 613 | : _("<no .debug_str_offsets section>")); |
| 614 | |
| 615 | if (this_set != NULL) |
| 616 | index_offset += this_set->section_offsets [DW_SECT_STR_OFFSETS]; |
| 617 | if (index_offset > index_section->size) |
| 618 | { |
| 619 | warn (_("DW_FORM_GNU_str_index offset too big: %s\n"), |
| 620 | dwarf_vmatoa ("x", index_offset)); |
| 621 | return _("<index offset is too big>"); |
| 622 | } |
| 623 | |
| 624 | if (str_section->start == NULL) |
| 625 | return (dwo ? _("<no .debug_str.dwo section>") |
| 626 | : _("<no .debug_str section>")); |
| 627 | |
| 628 | str_offset = byte_get (index_section->start + index_offset, offset_size); |
| 629 | str_offset -= str_section->address; |
| 630 | if (str_offset > str_section->size) |
| 631 | { |
| 632 | warn (_("DW_FORM_GNU_str_index indirect offset too big: %s\n"), |
| 633 | dwarf_vmatoa ("x", str_offset)); |
| 634 | return _("<indirect index offset is too big>"); |
| 635 | } |
| 636 | |
| 637 | return (const char *) str_section->start + str_offset; |
| 638 | } |
| 639 | |
| 640 | static const char * |
| 641 | fetch_indexed_value (dwarf_vma offset, dwarf_vma bytes) |
| 642 | { |
| 643 | struct dwarf_section *section = &debug_displays [debug_addr].section; |
| 644 | |
| 645 | if (section->start == NULL) |
| 646 | return (_("<no .debug_addr section>")); |
| 647 | |
| 648 | if (offset + bytes > section->size) |
| 649 | { |
| 650 | warn (_("Offset into section %s too big: %s\n"), |
| 651 | section->name, dwarf_vmatoa ("x", offset)); |
| 652 | return "<offset too big>"; |
| 653 | } |
| 654 | |
| 655 | return dwarf_vmatoa ("x", byte_get (section->start + offset, bytes)); |
| 656 | } |
| 657 | |
| 658 | |
| 659 | /* FIXME: There are better and more efficient ways to handle |
| 660 | these structures. For now though, I just want something that |
| 661 | is simple to implement. */ |
| 662 | typedef struct abbrev_attr |
| 663 | { |
| 664 | unsigned long attribute; |
| 665 | unsigned long form; |
| 666 | struct abbrev_attr *next; |
| 667 | } |
| 668 | abbrev_attr; |
| 669 | |
| 670 | typedef struct abbrev_entry |
| 671 | { |
| 672 | unsigned long entry; |
| 673 | unsigned long tag; |
| 674 | int children; |
| 675 | struct abbrev_attr *first_attr; |
| 676 | struct abbrev_attr *last_attr; |
| 677 | struct abbrev_entry *next; |
| 678 | } |
| 679 | abbrev_entry; |
| 680 | |
| 681 | static abbrev_entry *first_abbrev = NULL; |
| 682 | static abbrev_entry *last_abbrev = NULL; |
| 683 | |
| 684 | static void |
| 685 | free_abbrevs (void) |
| 686 | { |
| 687 | abbrev_entry *abbrv; |
| 688 | |
| 689 | for (abbrv = first_abbrev; abbrv;) |
| 690 | { |
| 691 | abbrev_entry *next_abbrev = abbrv->next; |
| 692 | abbrev_attr *attr; |
| 693 | |
| 694 | for (attr = abbrv->first_attr; attr;) |
| 695 | { |
| 696 | abbrev_attr *next_attr = attr->next; |
| 697 | |
| 698 | free (attr); |
| 699 | attr = next_attr; |
| 700 | } |
| 701 | |
| 702 | free (abbrv); |
| 703 | abbrv = next_abbrev; |
| 704 | } |
| 705 | |
| 706 | last_abbrev = first_abbrev = NULL; |
| 707 | } |
| 708 | |
| 709 | static void |
| 710 | add_abbrev (unsigned long number, unsigned long tag, int children) |
| 711 | { |
| 712 | abbrev_entry *entry; |
| 713 | |
| 714 | entry = (abbrev_entry *) malloc (sizeof (*entry)); |
| 715 | if (entry == NULL) |
| 716 | /* ugg */ |
| 717 | return; |
| 718 | |
| 719 | entry->entry = number; |
| 720 | entry->tag = tag; |
| 721 | entry->children = children; |
| 722 | entry->first_attr = NULL; |
| 723 | entry->last_attr = NULL; |
| 724 | entry->next = NULL; |
| 725 | |
| 726 | if (first_abbrev == NULL) |
| 727 | first_abbrev = entry; |
| 728 | else |
| 729 | last_abbrev->next = entry; |
| 730 | |
| 731 | last_abbrev = entry; |
| 732 | } |
| 733 | |
| 734 | static void |
| 735 | add_abbrev_attr (unsigned long attribute, unsigned long form) |
| 736 | { |
| 737 | abbrev_attr *attr; |
| 738 | |
| 739 | attr = (abbrev_attr *) malloc (sizeof (*attr)); |
| 740 | if (attr == NULL) |
| 741 | /* ugg */ |
| 742 | return; |
| 743 | |
| 744 | attr->attribute = attribute; |
| 745 | attr->form = form; |
| 746 | attr->next = NULL; |
| 747 | |
| 748 | if (last_abbrev->first_attr == NULL) |
| 749 | last_abbrev->first_attr = attr; |
| 750 | else |
| 751 | last_abbrev->last_attr->next = attr; |
| 752 | |
| 753 | last_abbrev->last_attr = attr; |
| 754 | } |
| 755 | |
| 756 | /* Processes the (partial) contents of a .debug_abbrev section. |
| 757 | Returns NULL if the end of the section was encountered. |
| 758 | Returns the address after the last byte read if the end of |
| 759 | an abbreviation set was found. */ |
| 760 | |
| 761 | static unsigned char * |
| 762 | process_abbrev_section (unsigned char *start, unsigned char *end) |
| 763 | { |
| 764 | if (first_abbrev != NULL) |
| 765 | return NULL; |
| 766 | |
| 767 | while (start < end) |
| 768 | { |
| 769 | unsigned int bytes_read; |
| 770 | unsigned long entry; |
| 771 | unsigned long tag; |
| 772 | unsigned long attribute; |
| 773 | int children; |
| 774 | |
| 775 | entry = read_uleb128 (start, & bytes_read, end); |
| 776 | start += bytes_read; |
| 777 | |
| 778 | /* A single zero is supposed to end the section according |
| 779 | to the standard. If there's more, then signal that to |
| 780 | the caller. */ |
| 781 | if (start == end) |
| 782 | return NULL; |
| 783 | if (entry == 0) |
| 784 | return start; |
| 785 | |
| 786 | tag = read_uleb128 (start, & bytes_read, end); |
| 787 | start += bytes_read; |
| 788 | if (start == end) |
| 789 | return NULL; |
| 790 | |
| 791 | children = *start++; |
| 792 | |
| 793 | add_abbrev (entry, tag, children); |
| 794 | |
| 795 | do |
| 796 | { |
| 797 | unsigned long form; |
| 798 | |
| 799 | attribute = read_uleb128 (start, & bytes_read, end); |
| 800 | start += bytes_read; |
| 801 | if (start == end) |
| 802 | break; |
| 803 | |
| 804 | form = read_uleb128 (start, & bytes_read, end); |
| 805 | start += bytes_read; |
| 806 | if (start == end) |
| 807 | break; |
| 808 | |
| 809 | add_abbrev_attr (attribute, form); |
| 810 | } |
| 811 | while (attribute != 0); |
| 812 | } |
| 813 | |
| 814 | /* Report the missing single zero which ends the section. */ |
| 815 | error (_(".debug_abbrev section not zero terminated\n")); |
| 816 | |
| 817 | return NULL; |
| 818 | } |
| 819 | |
| 820 | static const char * |
| 821 | get_TAG_name (unsigned long tag) |
| 822 | { |
| 823 | const char *name = get_DW_TAG_name ((unsigned int)tag); |
| 824 | |
| 825 | if (name == NULL) |
| 826 | { |
| 827 | static char buffer[100]; |
| 828 | |
| 829 | snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag); |
| 830 | return buffer; |
| 831 | } |
| 832 | |
| 833 | return name; |
| 834 | } |
| 835 | |
| 836 | static const char * |
| 837 | get_FORM_name (unsigned long form) |
| 838 | { |
| 839 | const char *name; |
| 840 | |
| 841 | if (form == 0) |
| 842 | return "DW_FORM value: 0"; |
| 843 | |
| 844 | name = get_DW_FORM_name (form); |
| 845 | if (name == NULL) |
| 846 | { |
| 847 | static char buffer[100]; |
| 848 | |
| 849 | snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form); |
| 850 | return buffer; |
| 851 | } |
| 852 | |
| 853 | return name; |
| 854 | } |
| 855 | |
| 856 | static unsigned char * |
| 857 | display_block (unsigned char *data, |
| 858 | dwarf_vma length, |
| 859 | const unsigned char * const end) |
| 860 | { |
| 861 | dwarf_vma maxlen; |
| 862 | |
| 863 | printf (_(" %s byte block: "), dwarf_vmatoa ("u", length)); |
| 864 | if (data > end) |
| 865 | return (unsigned char *) end; |
| 866 | |
| 867 | maxlen = (dwarf_vma) (end - data); |
| 868 | length = length > maxlen ? maxlen : length; |
| 869 | |
| 870 | while (length --) |
| 871 | printf ("%lx ", (unsigned long) byte_get (data++, 1)); |
| 872 | |
| 873 | return data; |
| 874 | } |
| 875 | |
| 876 | static int |
| 877 | decode_location_expression (unsigned char * data, |
| 878 | unsigned int pointer_size, |
| 879 | unsigned int offset_size, |
| 880 | int dwarf_version, |
| 881 | dwarf_vma length, |
| 882 | dwarf_vma cu_offset, |
| 883 | struct dwarf_section * section) |
| 884 | { |
| 885 | unsigned op; |
| 886 | unsigned int bytes_read; |
| 887 | dwarf_vma uvalue; |
| 888 | dwarf_signed_vma svalue; |
| 889 | unsigned char *end = data + length; |
| 890 | int need_frame_base = 0; |
| 891 | |
| 892 | while (data < end) |
| 893 | { |
| 894 | op = *data++; |
| 895 | |
| 896 | switch (op) |
| 897 | { |
| 898 | case DW_OP_addr: |
| 899 | SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| 900 | printf ("DW_OP_addr: %s", dwarf_vmatoa ("x", uvalue)); |
| 901 | break; |
| 902 | case DW_OP_deref: |
| 903 | printf ("DW_OP_deref"); |
| 904 | break; |
| 905 | case DW_OP_const1u: |
| 906 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 907 | printf ("DW_OP_const1u: %lu", (unsigned long) uvalue); |
| 908 | break; |
| 909 | case DW_OP_const1s: |
| 910 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 1, end); |
| 911 | printf ("DW_OP_const1s: %ld", (long) svalue); |
| 912 | break; |
| 913 | case DW_OP_const2u: |
| 914 | SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end); |
| 915 | printf ("DW_OP_const2u: %lu", (unsigned long) uvalue); |
| 916 | break; |
| 917 | case DW_OP_const2s: |
| 918 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| 919 | printf ("DW_OP_const2s: %ld", (long) svalue); |
| 920 | break; |
| 921 | case DW_OP_const4u: |
| 922 | SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| 923 | printf ("DW_OP_const4u: %lu", (unsigned long) uvalue); |
| 924 | break; |
| 925 | case DW_OP_const4s: |
| 926 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| 927 | printf ("DW_OP_const4s: %ld", (long) svalue); |
| 928 | break; |
| 929 | case DW_OP_const8u: |
| 930 | SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| 931 | printf ("DW_OP_const8u: %lu ", (unsigned long) uvalue); |
| 932 | SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| 933 | printf ("%lu", (unsigned long) uvalue); |
| 934 | break; |
| 935 | case DW_OP_const8s: |
| 936 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| 937 | printf ("DW_OP_const8s: %ld ", (long) svalue); |
| 938 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| 939 | printf ("%ld", (long) svalue); |
| 940 | break; |
| 941 | case DW_OP_constu: |
| 942 | printf ("DW_OP_constu: %s", |
| 943 | dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| 944 | data += bytes_read; |
| 945 | break; |
| 946 | case DW_OP_consts: |
| 947 | printf ("DW_OP_consts: %s", |
| 948 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| 949 | data += bytes_read; |
| 950 | break; |
| 951 | case DW_OP_dup: |
| 952 | printf ("DW_OP_dup"); |
| 953 | break; |
| 954 | case DW_OP_drop: |
| 955 | printf ("DW_OP_drop"); |
| 956 | break; |
| 957 | case DW_OP_over: |
| 958 | printf ("DW_OP_over"); |
| 959 | break; |
| 960 | case DW_OP_pick: |
| 961 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 962 | printf ("DW_OP_pick: %ld", (unsigned long) uvalue); |
| 963 | break; |
| 964 | case DW_OP_swap: |
| 965 | printf ("DW_OP_swap"); |
| 966 | break; |
| 967 | case DW_OP_rot: |
| 968 | printf ("DW_OP_rot"); |
| 969 | break; |
| 970 | case DW_OP_xderef: |
| 971 | printf ("DW_OP_xderef"); |
| 972 | break; |
| 973 | case DW_OP_abs: |
| 974 | printf ("DW_OP_abs"); |
| 975 | break; |
| 976 | case DW_OP_and: |
| 977 | printf ("DW_OP_and"); |
| 978 | break; |
| 979 | case DW_OP_div: |
| 980 | printf ("DW_OP_div"); |
| 981 | break; |
| 982 | case DW_OP_minus: |
| 983 | printf ("DW_OP_minus"); |
| 984 | break; |
| 985 | case DW_OP_mod: |
| 986 | printf ("DW_OP_mod"); |
| 987 | break; |
| 988 | case DW_OP_mul: |
| 989 | printf ("DW_OP_mul"); |
| 990 | break; |
| 991 | case DW_OP_neg: |
| 992 | printf ("DW_OP_neg"); |
| 993 | break; |
| 994 | case DW_OP_not: |
| 995 | printf ("DW_OP_not"); |
| 996 | break; |
| 997 | case DW_OP_or: |
| 998 | printf ("DW_OP_or"); |
| 999 | break; |
| 1000 | case DW_OP_plus: |
| 1001 | printf ("DW_OP_plus"); |
| 1002 | break; |
| 1003 | case DW_OP_plus_uconst: |
| 1004 | printf ("DW_OP_plus_uconst: %s", |
| 1005 | dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| 1006 | data += bytes_read; |
| 1007 | break; |
| 1008 | case DW_OP_shl: |
| 1009 | printf ("DW_OP_shl"); |
| 1010 | break; |
| 1011 | case DW_OP_shr: |
| 1012 | printf ("DW_OP_shr"); |
| 1013 | break; |
| 1014 | case DW_OP_shra: |
| 1015 | printf ("DW_OP_shra"); |
| 1016 | break; |
| 1017 | case DW_OP_xor: |
| 1018 | printf ("DW_OP_xor"); |
| 1019 | break; |
| 1020 | case DW_OP_bra: |
| 1021 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| 1022 | printf ("DW_OP_bra: %ld", (long) svalue); |
| 1023 | break; |
| 1024 | case DW_OP_eq: |
| 1025 | printf ("DW_OP_eq"); |
| 1026 | break; |
| 1027 | case DW_OP_ge: |
| 1028 | printf ("DW_OP_ge"); |
| 1029 | break; |
| 1030 | case DW_OP_gt: |
| 1031 | printf ("DW_OP_gt"); |
| 1032 | break; |
| 1033 | case DW_OP_le: |
| 1034 | printf ("DW_OP_le"); |
| 1035 | break; |
| 1036 | case DW_OP_lt: |
| 1037 | printf ("DW_OP_lt"); |
| 1038 | break; |
| 1039 | case DW_OP_ne: |
| 1040 | printf ("DW_OP_ne"); |
| 1041 | break; |
| 1042 | case DW_OP_skip: |
| 1043 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| 1044 | printf ("DW_OP_skip: %ld", (long) svalue); |
| 1045 | break; |
| 1046 | |
| 1047 | case DW_OP_lit0: |
| 1048 | case DW_OP_lit1: |
| 1049 | case DW_OP_lit2: |
| 1050 | case DW_OP_lit3: |
| 1051 | case DW_OP_lit4: |
| 1052 | case DW_OP_lit5: |
| 1053 | case DW_OP_lit6: |
| 1054 | case DW_OP_lit7: |
| 1055 | case DW_OP_lit8: |
| 1056 | case DW_OP_lit9: |
| 1057 | case DW_OP_lit10: |
| 1058 | case DW_OP_lit11: |
| 1059 | case DW_OP_lit12: |
| 1060 | case DW_OP_lit13: |
| 1061 | case DW_OP_lit14: |
| 1062 | case DW_OP_lit15: |
| 1063 | case DW_OP_lit16: |
| 1064 | case DW_OP_lit17: |
| 1065 | case DW_OP_lit18: |
| 1066 | case DW_OP_lit19: |
| 1067 | case DW_OP_lit20: |
| 1068 | case DW_OP_lit21: |
| 1069 | case DW_OP_lit22: |
| 1070 | case DW_OP_lit23: |
| 1071 | case DW_OP_lit24: |
| 1072 | case DW_OP_lit25: |
| 1073 | case DW_OP_lit26: |
| 1074 | case DW_OP_lit27: |
| 1075 | case DW_OP_lit28: |
| 1076 | case DW_OP_lit29: |
| 1077 | case DW_OP_lit30: |
| 1078 | case DW_OP_lit31: |
| 1079 | printf ("DW_OP_lit%d", op - DW_OP_lit0); |
| 1080 | break; |
| 1081 | |
| 1082 | case DW_OP_reg0: |
| 1083 | case DW_OP_reg1: |
| 1084 | case DW_OP_reg2: |
| 1085 | case DW_OP_reg3: |
| 1086 | case DW_OP_reg4: |
| 1087 | case DW_OP_reg5: |
| 1088 | case DW_OP_reg6: |
| 1089 | case DW_OP_reg7: |
| 1090 | case DW_OP_reg8: |
| 1091 | case DW_OP_reg9: |
| 1092 | case DW_OP_reg10: |
| 1093 | case DW_OP_reg11: |
| 1094 | case DW_OP_reg12: |
| 1095 | case DW_OP_reg13: |
| 1096 | case DW_OP_reg14: |
| 1097 | case DW_OP_reg15: |
| 1098 | case DW_OP_reg16: |
| 1099 | case DW_OP_reg17: |
| 1100 | case DW_OP_reg18: |
| 1101 | case DW_OP_reg19: |
| 1102 | case DW_OP_reg20: |
| 1103 | case DW_OP_reg21: |
| 1104 | case DW_OP_reg22: |
| 1105 | case DW_OP_reg23: |
| 1106 | case DW_OP_reg24: |
| 1107 | case DW_OP_reg25: |
| 1108 | case DW_OP_reg26: |
| 1109 | case DW_OP_reg27: |
| 1110 | case DW_OP_reg28: |
| 1111 | case DW_OP_reg29: |
| 1112 | case DW_OP_reg30: |
| 1113 | case DW_OP_reg31: |
| 1114 | printf ("DW_OP_reg%d (%s)", op - DW_OP_reg0, |
| 1115 | regname (op - DW_OP_reg0, 1)); |
| 1116 | break; |
| 1117 | |
| 1118 | case DW_OP_breg0: |
| 1119 | case DW_OP_breg1: |
| 1120 | case DW_OP_breg2: |
| 1121 | case DW_OP_breg3: |
| 1122 | case DW_OP_breg4: |
| 1123 | case DW_OP_breg5: |
| 1124 | case DW_OP_breg6: |
| 1125 | case DW_OP_breg7: |
| 1126 | case DW_OP_breg8: |
| 1127 | case DW_OP_breg9: |
| 1128 | case DW_OP_breg10: |
| 1129 | case DW_OP_breg11: |
| 1130 | case DW_OP_breg12: |
| 1131 | case DW_OP_breg13: |
| 1132 | case DW_OP_breg14: |
| 1133 | case DW_OP_breg15: |
| 1134 | case DW_OP_breg16: |
| 1135 | case DW_OP_breg17: |
| 1136 | case DW_OP_breg18: |
| 1137 | case DW_OP_breg19: |
| 1138 | case DW_OP_breg20: |
| 1139 | case DW_OP_breg21: |
| 1140 | case DW_OP_breg22: |
| 1141 | case DW_OP_breg23: |
| 1142 | case DW_OP_breg24: |
| 1143 | case DW_OP_breg25: |
| 1144 | case DW_OP_breg26: |
| 1145 | case DW_OP_breg27: |
| 1146 | case DW_OP_breg28: |
| 1147 | case DW_OP_breg29: |
| 1148 | case DW_OP_breg30: |
| 1149 | case DW_OP_breg31: |
| 1150 | printf ("DW_OP_breg%d (%s): %s", |
| 1151 | op - DW_OP_breg0, |
| 1152 | regname (op - DW_OP_breg0, 1), |
| 1153 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| 1154 | data += bytes_read; |
| 1155 | break; |
| 1156 | |
| 1157 | case DW_OP_regx: |
| 1158 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1159 | data += bytes_read; |
| 1160 | printf ("DW_OP_regx: %s (%s)", |
| 1161 | dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); |
| 1162 | break; |
| 1163 | case DW_OP_fbreg: |
| 1164 | need_frame_base = 1; |
| 1165 | printf ("DW_OP_fbreg: %s", |
| 1166 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| 1167 | data += bytes_read; |
| 1168 | break; |
| 1169 | case DW_OP_bregx: |
| 1170 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1171 | data += bytes_read; |
| 1172 | printf ("DW_OP_bregx: %s (%s) %s", |
| 1173 | dwarf_vmatoa ("u", uvalue), regname (uvalue, 1), |
| 1174 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| 1175 | data += bytes_read; |
| 1176 | break; |
| 1177 | case DW_OP_piece: |
| 1178 | printf ("DW_OP_piece: %s", |
| 1179 | dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| 1180 | data += bytes_read; |
| 1181 | break; |
| 1182 | case DW_OP_deref_size: |
| 1183 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 1184 | printf ("DW_OP_deref_size: %ld", (long) uvalue); |
| 1185 | break; |
| 1186 | case DW_OP_xderef_size: |
| 1187 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 1188 | printf ("DW_OP_xderef_size: %ld", (long) uvalue); |
| 1189 | break; |
| 1190 | case DW_OP_nop: |
| 1191 | printf ("DW_OP_nop"); |
| 1192 | break; |
| 1193 | |
| 1194 | /* DWARF 3 extensions. */ |
| 1195 | case DW_OP_push_object_address: |
| 1196 | printf ("DW_OP_push_object_address"); |
| 1197 | break; |
| 1198 | case DW_OP_call2: |
| 1199 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1200 | this ought to be an 8-byte wide computation. */ |
| 1201 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| 1202 | printf ("DW_OP_call2: <0x%s>", |
| 1203 | dwarf_vmatoa ("x", svalue + cu_offset)); |
| 1204 | break; |
| 1205 | case DW_OP_call4: |
| 1206 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1207 | this ought to be an 8-byte wide computation. */ |
| 1208 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| 1209 | printf ("DW_OP_call4: <0x%s>", |
| 1210 | dwarf_vmatoa ("x", svalue + cu_offset)); |
| 1211 | break; |
| 1212 | case DW_OP_call_ref: |
| 1213 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1214 | this ought to be an 8-byte wide computation. */ |
| 1215 | if (dwarf_version == -1) |
| 1216 | { |
| 1217 | printf (_("(DW_OP_call_ref in frame info)")); |
| 1218 | /* No way to tell where the next op is, so just bail. */ |
| 1219 | return need_frame_base; |
| 1220 | } |
| 1221 | if (dwarf_version == 2) |
| 1222 | { |
| 1223 | SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| 1224 | } |
| 1225 | else |
| 1226 | { |
| 1227 | SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| 1228 | } |
| 1229 | printf ("DW_OP_call_ref: <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| 1230 | break; |
| 1231 | case DW_OP_form_tls_address: |
| 1232 | printf ("DW_OP_form_tls_address"); |
| 1233 | break; |
| 1234 | case DW_OP_call_frame_cfa: |
| 1235 | printf ("DW_OP_call_frame_cfa"); |
| 1236 | break; |
| 1237 | case DW_OP_bit_piece: |
| 1238 | printf ("DW_OP_bit_piece: "); |
| 1239 | printf (_("size: %s "), |
| 1240 | dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| 1241 | data += bytes_read; |
| 1242 | printf (_("offset: %s "), |
| 1243 | dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| 1244 | data += bytes_read; |
| 1245 | break; |
| 1246 | |
| 1247 | /* DWARF 4 extensions. */ |
| 1248 | case DW_OP_stack_value: |
| 1249 | printf ("DW_OP_stack_value"); |
| 1250 | break; |
| 1251 | |
| 1252 | case DW_OP_implicit_value: |
| 1253 | printf ("DW_OP_implicit_value"); |
| 1254 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1255 | data += bytes_read; |
| 1256 | data = display_block (data, uvalue, end); |
| 1257 | break; |
| 1258 | |
| 1259 | /* GNU extensions. */ |
| 1260 | case DW_OP_GNU_push_tls_address: |
| 1261 | printf (_("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown")); |
| 1262 | break; |
| 1263 | case DW_OP_GNU_uninit: |
| 1264 | printf ("DW_OP_GNU_uninit"); |
| 1265 | /* FIXME: Is there data associated with this OP ? */ |
| 1266 | break; |
| 1267 | case DW_OP_GNU_encoded_addr: |
| 1268 | { |
| 1269 | int encoding = 0; |
| 1270 | dwarf_vma addr; |
| 1271 | |
| 1272 | if (data < end) |
| 1273 | encoding = *data++; |
| 1274 | addr = get_encoded_value (&data, encoding, section, end); |
| 1275 | |
| 1276 | printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding); |
| 1277 | print_dwarf_vma (addr, pointer_size); |
| 1278 | } |
| 1279 | break; |
| 1280 | case DW_OP_GNU_implicit_pointer: |
| 1281 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1282 | this ought to be an 8-byte wide computation. */ |
| 1283 | if (dwarf_version == -1) |
| 1284 | { |
| 1285 | printf (_("(DW_OP_GNU_implicit_pointer in frame info)")); |
| 1286 | /* No way to tell where the next op is, so just bail. */ |
| 1287 | return need_frame_base; |
| 1288 | } |
| 1289 | if (dwarf_version == 2) |
| 1290 | { |
| 1291 | SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| 1292 | } |
| 1293 | else |
| 1294 | { |
| 1295 | SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| 1296 | } |
| 1297 | printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s", |
| 1298 | dwarf_vmatoa ("x", uvalue), |
| 1299 | dwarf_vmatoa ("d", read_sleb128 (data, |
| 1300 | &bytes_read, end))); |
| 1301 | data += bytes_read; |
| 1302 | break; |
| 1303 | case DW_OP_GNU_entry_value: |
| 1304 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1305 | data += bytes_read; |
| 1306 | printf ("DW_OP_GNU_entry_value: ("); |
| 1307 | if (decode_location_expression (data, pointer_size, offset_size, |
| 1308 | dwarf_version, uvalue, |
| 1309 | cu_offset, section)) |
| 1310 | need_frame_base = 1; |
| 1311 | putchar (')'); |
| 1312 | data += uvalue; |
| 1313 | if (data > end) |
| 1314 | data = end; |
| 1315 | break; |
| 1316 | case DW_OP_GNU_const_type: |
| 1317 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1318 | data += bytes_read; |
| 1319 | printf ("DW_OP_GNU_const_type: <0x%s> ", |
| 1320 | dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1321 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 1322 | data = display_block (data, uvalue, end); |
| 1323 | break; |
| 1324 | case DW_OP_GNU_regval_type: |
| 1325 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1326 | data += bytes_read; |
| 1327 | printf ("DW_OP_GNU_regval_type: %s (%s)", |
| 1328 | dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); |
| 1329 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1330 | data += bytes_read; |
| 1331 | printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1332 | break; |
| 1333 | case DW_OP_GNU_deref_type: |
| 1334 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 1335 | printf ("DW_OP_GNU_deref_type: %ld", (long) uvalue); |
| 1336 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1337 | data += bytes_read; |
| 1338 | printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1339 | break; |
| 1340 | case DW_OP_GNU_convert: |
| 1341 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1342 | data += bytes_read; |
| 1343 | printf ("DW_OP_GNU_convert <0x%s>", |
| 1344 | dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); |
| 1345 | break; |
| 1346 | case DW_OP_GNU_reinterpret: |
| 1347 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1348 | data += bytes_read; |
| 1349 | printf ("DW_OP_GNU_reinterpret <0x%s>", |
| 1350 | dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); |
| 1351 | break; |
| 1352 | case DW_OP_GNU_parameter_ref: |
| 1353 | SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| 1354 | printf ("DW_OP_GNU_parameter_ref: <0x%s>", |
| 1355 | dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1356 | break; |
| 1357 | case DW_OP_GNU_addr_index: |
| 1358 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1359 | data += bytes_read; |
| 1360 | printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| 1361 | break; |
| 1362 | case DW_OP_GNU_const_index: |
| 1363 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1364 | data += bytes_read; |
| 1365 | printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| 1366 | break; |
| 1367 | |
| 1368 | /* HP extensions. */ |
| 1369 | case DW_OP_HP_is_value: |
| 1370 | printf ("DW_OP_HP_is_value"); |
| 1371 | /* FIXME: Is there data associated with this OP ? */ |
| 1372 | break; |
| 1373 | case DW_OP_HP_fltconst4: |
| 1374 | printf ("DW_OP_HP_fltconst4"); |
| 1375 | /* FIXME: Is there data associated with this OP ? */ |
| 1376 | break; |
| 1377 | case DW_OP_HP_fltconst8: |
| 1378 | printf ("DW_OP_HP_fltconst8"); |
| 1379 | /* FIXME: Is there data associated with this OP ? */ |
| 1380 | break; |
| 1381 | case DW_OP_HP_mod_range: |
| 1382 | printf ("DW_OP_HP_mod_range"); |
| 1383 | /* FIXME: Is there data associated with this OP ? */ |
| 1384 | break; |
| 1385 | case DW_OP_HP_unmod_range: |
| 1386 | printf ("DW_OP_HP_unmod_range"); |
| 1387 | /* FIXME: Is there data associated with this OP ? */ |
| 1388 | break; |
| 1389 | case DW_OP_HP_tls: |
| 1390 | printf ("DW_OP_HP_tls"); |
| 1391 | /* FIXME: Is there data associated with this OP ? */ |
| 1392 | break; |
| 1393 | |
| 1394 | /* PGI (STMicroelectronics) extensions. */ |
| 1395 | case DW_OP_PGI_omp_thread_num: |
| 1396 | /* Pushes the thread number for the current thread as it would be |
| 1397 | returned by the standard OpenMP library function: |
| 1398 | omp_get_thread_num(). The "current thread" is the thread for |
| 1399 | which the expression is being evaluated. */ |
| 1400 | printf ("DW_OP_PGI_omp_thread_num"); |
| 1401 | break; |
| 1402 | |
| 1403 | default: |
| 1404 | if (op >= DW_OP_lo_user |
| 1405 | && op <= DW_OP_hi_user) |
| 1406 | printf (_("(User defined location op)")); |
| 1407 | else |
| 1408 | printf (_("(Unknown location op)")); |
| 1409 | /* No way to tell where the next op is, so just bail. */ |
| 1410 | return need_frame_base; |
| 1411 | } |
| 1412 | |
| 1413 | /* Separate the ops. */ |
| 1414 | if (data < end) |
| 1415 | printf ("; "); |
| 1416 | } |
| 1417 | |
| 1418 | return need_frame_base; |
| 1419 | } |
| 1420 | |
| 1421 | /* Find the CU or TU set corresponding to the given CU_OFFSET. |
| 1422 | This is used for DWARF package files. */ |
| 1423 | |
| 1424 | static struct cu_tu_set * |
| 1425 | find_cu_tu_set_v2 (dwarf_vma cu_offset, int do_types) |
| 1426 | { |
| 1427 | struct cu_tu_set *p; |
| 1428 | unsigned int nsets; |
| 1429 | unsigned int dw_sect; |
| 1430 | |
| 1431 | if (do_types) |
| 1432 | { |
| 1433 | p = tu_sets; |
| 1434 | nsets = tu_count; |
| 1435 | dw_sect = DW_SECT_TYPES; |
| 1436 | } |
| 1437 | else |
| 1438 | { |
| 1439 | p = cu_sets; |
| 1440 | nsets = cu_count; |
| 1441 | dw_sect = DW_SECT_INFO; |
| 1442 | } |
| 1443 | while (nsets > 0) |
| 1444 | { |
| 1445 | if (p->section_offsets [dw_sect] == cu_offset) |
| 1446 | return p; |
| 1447 | p++; |
| 1448 | nsets--; |
| 1449 | } |
| 1450 | return NULL; |
| 1451 | } |
| 1452 | |
| 1453 | /* Add INC to HIGH_BITS:LOW_BITS. */ |
| 1454 | static void |
| 1455 | add64 (dwarf_vma * high_bits, dwarf_vma * low_bits, dwarf_vma inc) |
| 1456 | { |
| 1457 | dwarf_vma tmp = * low_bits; |
| 1458 | |
| 1459 | tmp += inc; |
| 1460 | |
| 1461 | /* FIXME: There is probably a better way of handling this: |
| 1462 | |
| 1463 | We need to cope with dwarf_vma being a 32-bit or 64-bit |
| 1464 | type. Plus regardless of its size LOW_BITS is meant to |
| 1465 | only hold 32-bits, so if there is overflow or wrap around |
| 1466 | we must propagate into HIGH_BITS. */ |
| 1467 | if (tmp < * low_bits) |
| 1468 | { |
| 1469 | ++ * high_bits; |
| 1470 | } |
| 1471 | else if (sizeof (tmp) > 8 |
| 1472 | && (tmp >> 31) > 1) |
| 1473 | { |
| 1474 | ++ * high_bits; |
| 1475 | tmp &= 0xFFFFFFFF; |
| 1476 | } |
| 1477 | |
| 1478 | * low_bits = tmp; |
| 1479 | } |
| 1480 | |
| 1481 | static unsigned char * |
| 1482 | read_and_display_attr_value (unsigned long attribute, |
| 1483 | unsigned long form, |
| 1484 | unsigned char * data, |
| 1485 | unsigned char * end, |
| 1486 | dwarf_vma cu_offset, |
| 1487 | dwarf_vma pointer_size, |
| 1488 | dwarf_vma offset_size, |
| 1489 | int dwarf_version, |
| 1490 | debug_info * debug_info_p, |
| 1491 | int do_loc, |
| 1492 | struct dwarf_section * section, |
| 1493 | struct cu_tu_set * this_set) |
| 1494 | { |
| 1495 | dwarf_vma uvalue = 0; |
| 1496 | unsigned char *block_start = NULL; |
| 1497 | unsigned char * orig_data = data; |
| 1498 | unsigned int bytes_read; |
| 1499 | |
| 1500 | if (data > end || (data == end && form != DW_FORM_flag_present)) |
| 1501 | { |
| 1502 | warn (_("Corrupt attribute\n")); |
| 1503 | return data; |
| 1504 | } |
| 1505 | |
| 1506 | switch (form) |
| 1507 | { |
| 1508 | default: |
| 1509 | break; |
| 1510 | |
| 1511 | case DW_FORM_ref_addr: |
| 1512 | if (dwarf_version == 2) |
| 1513 | SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| 1514 | else if (dwarf_version == 3 || dwarf_version == 4) |
| 1515 | SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| 1516 | else |
| 1517 | error (_("Internal error: DWARF version is not 2, 3 or 4.\n")); |
| 1518 | |
| 1519 | break; |
| 1520 | |
| 1521 | case DW_FORM_addr: |
| 1522 | SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| 1523 | break; |
| 1524 | |
| 1525 | case DW_FORM_strp: |
| 1526 | case DW_FORM_sec_offset: |
| 1527 | case DW_FORM_GNU_ref_alt: |
| 1528 | case DW_FORM_GNU_strp_alt: |
| 1529 | SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| 1530 | break; |
| 1531 | |
| 1532 | case DW_FORM_flag_present: |
| 1533 | uvalue = 1; |
| 1534 | break; |
| 1535 | |
| 1536 | case DW_FORM_ref1: |
| 1537 | case DW_FORM_flag: |
| 1538 | case DW_FORM_data1: |
| 1539 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 1540 | break; |
| 1541 | |
| 1542 | case DW_FORM_ref2: |
| 1543 | case DW_FORM_data2: |
| 1544 | SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end); |
| 1545 | break; |
| 1546 | |
| 1547 | case DW_FORM_ref4: |
| 1548 | case DW_FORM_data4: |
| 1549 | SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| 1550 | break; |
| 1551 | |
| 1552 | case DW_FORM_sdata: |
| 1553 | uvalue = read_sleb128 (data, & bytes_read, end); |
| 1554 | data += bytes_read; |
| 1555 | break; |
| 1556 | |
| 1557 | case DW_FORM_GNU_str_index: |
| 1558 | uvalue = read_uleb128 (data, & bytes_read, end); |
| 1559 | data += bytes_read; |
| 1560 | break; |
| 1561 | |
| 1562 | case DW_FORM_ref_udata: |
| 1563 | case DW_FORM_udata: |
| 1564 | uvalue = read_uleb128 (data, & bytes_read, end); |
| 1565 | data += bytes_read; |
| 1566 | break; |
| 1567 | |
| 1568 | case DW_FORM_indirect: |
| 1569 | form = read_uleb128 (data, & bytes_read, end); |
| 1570 | data += bytes_read; |
| 1571 | if (!do_loc) |
| 1572 | printf (" %s", get_FORM_name (form)); |
| 1573 | return read_and_display_attr_value (attribute, form, data, end, |
| 1574 | cu_offset, pointer_size, |
| 1575 | offset_size, dwarf_version, |
| 1576 | debug_info_p, do_loc, |
| 1577 | section, this_set); |
| 1578 | case DW_FORM_GNU_addr_index: |
| 1579 | uvalue = read_uleb128 (data, & bytes_read, end); |
| 1580 | data += bytes_read; |
| 1581 | break; |
| 1582 | } |
| 1583 | |
| 1584 | switch (form) |
| 1585 | { |
| 1586 | case DW_FORM_ref_addr: |
| 1587 | if (!do_loc) |
| 1588 | printf (" <0x%s>", dwarf_vmatoa ("x",uvalue)); |
| 1589 | break; |
| 1590 | |
| 1591 | case DW_FORM_GNU_ref_alt: |
| 1592 | if (!do_loc) |
| 1593 | printf (" <alt 0x%s>", dwarf_vmatoa ("x",uvalue)); |
| 1594 | break; |
| 1595 | |
| 1596 | case DW_FORM_ref1: |
| 1597 | case DW_FORM_ref2: |
| 1598 | case DW_FORM_ref4: |
| 1599 | case DW_FORM_ref_udata: |
| 1600 | if (!do_loc) |
| 1601 | printf (" <0x%s>", dwarf_vmatoa ("x", uvalue + cu_offset)); |
| 1602 | break; |
| 1603 | |
| 1604 | case DW_FORM_data4: |
| 1605 | case DW_FORM_addr: |
| 1606 | case DW_FORM_sec_offset: |
| 1607 | if (!do_loc) |
| 1608 | printf (" 0x%s", dwarf_vmatoa ("x", uvalue)); |
| 1609 | break; |
| 1610 | |
| 1611 | case DW_FORM_flag_present: |
| 1612 | case DW_FORM_flag: |
| 1613 | case DW_FORM_data1: |
| 1614 | case DW_FORM_data2: |
| 1615 | case DW_FORM_sdata: |
| 1616 | case DW_FORM_udata: |
| 1617 | if (!do_loc) |
| 1618 | printf (" %s", dwarf_vmatoa ("d", uvalue)); |
| 1619 | break; |
| 1620 | |
| 1621 | case DW_FORM_ref8: |
| 1622 | case DW_FORM_data8: |
| 1623 | if (!do_loc) |
| 1624 | { |
| 1625 | dwarf_vma high_bits; |
| 1626 | dwarf_vma utmp; |
| 1627 | char buf[64]; |
| 1628 | |
| 1629 | SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end); |
| 1630 | utmp = uvalue; |
| 1631 | if (form == DW_FORM_ref8) |
| 1632 | add64 (& high_bits, & utmp, cu_offset); |
| 1633 | printf (" 0x%s", |
| 1634 | dwarf_vmatoa64 (high_bits, utmp, buf, sizeof (buf))); |
| 1635 | } |
| 1636 | |
| 1637 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1638 | && num_debug_info_entries == 0) |
| 1639 | { |
| 1640 | if (sizeof (uvalue) == 8) |
| 1641 | SAFE_BYTE_GET (uvalue, data, 8, end); |
| 1642 | else |
| 1643 | error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n")); |
| 1644 | } |
| 1645 | |
| 1646 | data += 8; |
| 1647 | break; |
| 1648 | |
| 1649 | case DW_FORM_string: |
| 1650 | if (!do_loc) |
| 1651 | printf (" %.*s", (int) (end - data), data); |
| 1652 | data += strnlen ((char *) data, end - data) + 1; |
| 1653 | break; |
| 1654 | |
| 1655 | case DW_FORM_block: |
| 1656 | case DW_FORM_exprloc: |
| 1657 | uvalue = read_uleb128 (data, & bytes_read, end); |
| 1658 | block_start = data + bytes_read; |
| 1659 | if (block_start >= end) |
| 1660 | { |
| 1661 | warn (_("Block ends prematurely\n")); |
| 1662 | uvalue = 0; |
| 1663 | block_start = end; |
| 1664 | } |
| 1665 | /* PR 17512: file: 008-103549-0.001:0.1. */ |
| 1666 | if (block_start + uvalue > end) |
| 1667 | { |
| 1668 | warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| 1669 | uvalue = end - block_start; |
| 1670 | } |
| 1671 | if (do_loc) |
| 1672 | data = block_start + uvalue; |
| 1673 | else |
| 1674 | data = display_block (block_start, uvalue, end); |
| 1675 | break; |
| 1676 | |
| 1677 | case DW_FORM_block1: |
| 1678 | SAFE_BYTE_GET (uvalue, data, 1, end); |
| 1679 | block_start = data + 1; |
| 1680 | if (block_start >= end) |
| 1681 | { |
| 1682 | warn (_("Block ends prematurely\n")); |
| 1683 | uvalue = 0; |
| 1684 | block_start = end; |
| 1685 | } |
| 1686 | if (block_start + uvalue > end) |
| 1687 | { |
| 1688 | warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| 1689 | uvalue = end - block_start; |
| 1690 | } |
| 1691 | if (do_loc) |
| 1692 | data = block_start + uvalue; |
| 1693 | else |
| 1694 | data = display_block (block_start, uvalue, end); |
| 1695 | break; |
| 1696 | |
| 1697 | case DW_FORM_block2: |
| 1698 | SAFE_BYTE_GET (uvalue, data, 2, end); |
| 1699 | block_start = data + 2; |
| 1700 | if (block_start >= end) |
| 1701 | { |
| 1702 | warn (_("Block ends prematurely\n")); |
| 1703 | uvalue = 0; |
| 1704 | block_start = end; |
| 1705 | } |
| 1706 | if (block_start + uvalue > end) |
| 1707 | { |
| 1708 | warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| 1709 | uvalue = end - block_start; |
| 1710 | } |
| 1711 | if (do_loc) |
| 1712 | data = block_start + uvalue; |
| 1713 | else |
| 1714 | data = display_block (block_start, uvalue, end); |
| 1715 | break; |
| 1716 | |
| 1717 | case DW_FORM_block4: |
| 1718 | SAFE_BYTE_GET (uvalue, data, 4, end); |
| 1719 | block_start = data + 4; |
| 1720 | /* PR 17512: file: 3371-3907-0.004. */ |
| 1721 | if (block_start >= end) |
| 1722 | { |
| 1723 | warn (_("Block ends prematurely\n")); |
| 1724 | uvalue = 0; |
| 1725 | block_start = end; |
| 1726 | } |
| 1727 | if (block_start + uvalue > end) |
| 1728 | { |
| 1729 | warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| 1730 | uvalue = end - block_start; |
| 1731 | } |
| 1732 | if (do_loc) |
| 1733 | data = block_start + uvalue; |
| 1734 | else |
| 1735 | data = display_block (block_start, uvalue, end); |
| 1736 | break; |
| 1737 | |
| 1738 | case DW_FORM_strp: |
| 1739 | if (!do_loc) |
| 1740 | printf (_(" (indirect string, offset: 0x%s): %s"), |
| 1741 | dwarf_vmatoa ("x", uvalue), |
| 1742 | fetch_indirect_string (uvalue)); |
| 1743 | break; |
| 1744 | |
| 1745 | case DW_FORM_GNU_str_index: |
| 1746 | if (!do_loc) |
| 1747 | { |
| 1748 | const char *suffix = strrchr (section->name, '.'); |
| 1749 | int dwo = (suffix && strcmp (suffix, ".dwo") == 0) ? 1 : 0; |
| 1750 | |
| 1751 | printf (_(" (indexed string: 0x%s): %s"), |
| 1752 | dwarf_vmatoa ("x", uvalue), |
| 1753 | fetch_indexed_string (uvalue, this_set, offset_size, dwo)); |
| 1754 | } |
| 1755 | break; |
| 1756 | |
| 1757 | case DW_FORM_GNU_strp_alt: |
| 1758 | if (!do_loc) |
| 1759 | printf (_(" (alt indirect string, offset: 0x%s)"), |
| 1760 | dwarf_vmatoa ("x", uvalue)); |
| 1761 | break; |
| 1762 | |
| 1763 | case DW_FORM_indirect: |
| 1764 | /* Handled above. */ |
| 1765 | break; |
| 1766 | |
| 1767 | case DW_FORM_ref_sig8: |
| 1768 | if (!do_loc) |
| 1769 | { |
| 1770 | dwarf_vma high_bits; |
| 1771 | char buf[64]; |
| 1772 | |
| 1773 | SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end); |
| 1774 | printf (" signature: 0x%s", |
| 1775 | dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf))); |
| 1776 | } |
| 1777 | data += 8; |
| 1778 | break; |
| 1779 | |
| 1780 | case DW_FORM_GNU_addr_index: |
| 1781 | if (!do_loc) |
| 1782 | printf (_(" (addr_index: 0x%s): %s"), |
| 1783 | dwarf_vmatoa ("x", uvalue), |
| 1784 | fetch_indexed_value (uvalue * pointer_size, pointer_size)); |
| 1785 | break; |
| 1786 | |
| 1787 | default: |
| 1788 | warn (_("Unrecognized form: %lu\n"), form); |
| 1789 | break; |
| 1790 | } |
| 1791 | |
| 1792 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1793 | && num_debug_info_entries == 0 |
| 1794 | && debug_info_p != NULL) |
| 1795 | { |
| 1796 | switch (attribute) |
| 1797 | { |
| 1798 | case DW_AT_frame_base: |
| 1799 | have_frame_base = 1; |
| 1800 | case DW_AT_location: |
| 1801 | case DW_AT_string_length: |
| 1802 | case DW_AT_return_addr: |
| 1803 | case DW_AT_data_member_location: |
| 1804 | case DW_AT_vtable_elem_location: |
| 1805 | case DW_AT_segment: |
| 1806 | case DW_AT_static_link: |
| 1807 | case DW_AT_use_location: |
| 1808 | case DW_AT_GNU_call_site_value: |
| 1809 | case DW_AT_GNU_call_site_data_value: |
| 1810 | case DW_AT_GNU_call_site_target: |
| 1811 | case DW_AT_GNU_call_site_target_clobbered: |
| 1812 | if ((dwarf_version < 4 |
| 1813 | && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| 1814 | || form == DW_FORM_sec_offset) |
| 1815 | { |
| 1816 | /* Process location list. */ |
| 1817 | unsigned int lmax = debug_info_p->max_loc_offsets; |
| 1818 | unsigned int num = debug_info_p->num_loc_offsets; |
| 1819 | |
| 1820 | if (lmax == 0 || num >= lmax) |
| 1821 | { |
| 1822 | lmax += 1024; |
| 1823 | debug_info_p->loc_offsets = (dwarf_vma *) |
| 1824 | xcrealloc (debug_info_p->loc_offsets, |
| 1825 | lmax, sizeof (*debug_info_p->loc_offsets)); |
| 1826 | debug_info_p->have_frame_base = (int *) |
| 1827 | xcrealloc (debug_info_p->have_frame_base, |
| 1828 | lmax, sizeof (*debug_info_p->have_frame_base)); |
| 1829 | debug_info_p->max_loc_offsets = lmax; |
| 1830 | } |
| 1831 | if (this_set != NULL) |
| 1832 | uvalue += this_set->section_offsets [DW_SECT_LOC]; |
| 1833 | debug_info_p->loc_offsets [num] = uvalue; |
| 1834 | debug_info_p->have_frame_base [num] = have_frame_base; |
| 1835 | debug_info_p->num_loc_offsets++; |
| 1836 | } |
| 1837 | break; |
| 1838 | |
| 1839 | case DW_AT_low_pc: |
| 1840 | if (need_base_address) |
| 1841 | debug_info_p->base_address = uvalue; |
| 1842 | break; |
| 1843 | |
| 1844 | case DW_AT_GNU_addr_base: |
| 1845 | debug_info_p->addr_base = uvalue; |
| 1846 | break; |
| 1847 | |
| 1848 | case DW_AT_GNU_ranges_base: |
| 1849 | debug_info_p->ranges_base = uvalue; |
| 1850 | break; |
| 1851 | |
| 1852 | case DW_AT_ranges: |
| 1853 | if ((dwarf_version < 4 |
| 1854 | && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| 1855 | || form == DW_FORM_sec_offset) |
| 1856 | { |
| 1857 | /* Process range list. */ |
| 1858 | unsigned int lmax = debug_info_p->max_range_lists; |
| 1859 | unsigned int num = debug_info_p->num_range_lists; |
| 1860 | |
| 1861 | if (lmax == 0 || num >= lmax) |
| 1862 | { |
| 1863 | lmax += 1024; |
| 1864 | debug_info_p->range_lists = (dwarf_vma *) |
| 1865 | xcrealloc (debug_info_p->range_lists, |
| 1866 | lmax, sizeof (*debug_info_p->range_lists)); |
| 1867 | debug_info_p->max_range_lists = lmax; |
| 1868 | } |
| 1869 | debug_info_p->range_lists [num] = uvalue; |
| 1870 | debug_info_p->num_range_lists++; |
| 1871 | } |
| 1872 | break; |
| 1873 | |
| 1874 | default: |
| 1875 | break; |
| 1876 | } |
| 1877 | } |
| 1878 | |
| 1879 | if (do_loc || attribute == 0) |
| 1880 | return data; |
| 1881 | |
| 1882 | /* For some attributes we can display further information. */ |
| 1883 | switch (attribute) |
| 1884 | { |
| 1885 | case DW_AT_inline: |
| 1886 | printf ("\t"); |
| 1887 | switch (uvalue) |
| 1888 | { |
| 1889 | case DW_INL_not_inlined: |
| 1890 | printf (_("(not inlined)")); |
| 1891 | break; |
| 1892 | case DW_INL_inlined: |
| 1893 | printf (_("(inlined)")); |
| 1894 | break; |
| 1895 | case DW_INL_declared_not_inlined: |
| 1896 | printf (_("(declared as inline but ignored)")); |
| 1897 | break; |
| 1898 | case DW_INL_declared_inlined: |
| 1899 | printf (_("(declared as inline and inlined)")); |
| 1900 | break; |
| 1901 | default: |
| 1902 | printf (_(" (Unknown inline attribute value: %s)"), |
| 1903 | dwarf_vmatoa ("x", uvalue)); |
| 1904 | break; |
| 1905 | } |
| 1906 | break; |
| 1907 | |
| 1908 | case DW_AT_language: |
| 1909 | printf ("\t"); |
| 1910 | switch (uvalue) |
| 1911 | { |
| 1912 | /* Ordered by the numeric value of these constants. */ |
| 1913 | case DW_LANG_C89: printf ("(ANSI C)"); break; |
| 1914 | case DW_LANG_C: printf ("(non-ANSI C)"); break; |
| 1915 | case DW_LANG_Ada83: printf ("(Ada)"); break; |
| 1916 | case DW_LANG_C_plus_plus: printf ("(C++)"); break; |
| 1917 | case DW_LANG_Cobol74: printf ("(Cobol 74)"); break; |
| 1918 | case DW_LANG_Cobol85: printf ("(Cobol 85)"); break; |
| 1919 | case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break; |
| 1920 | case DW_LANG_Fortran90: printf ("(Fortran 90)"); break; |
| 1921 | case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break; |
| 1922 | case DW_LANG_Modula2: printf ("(Modula 2)"); break; |
| 1923 | /* DWARF 2.1 values. */ |
| 1924 | case DW_LANG_Java: printf ("(Java)"); break; |
| 1925 | case DW_LANG_C99: printf ("(ANSI C99)"); break; |
| 1926 | case DW_LANG_Ada95: printf ("(ADA 95)"); break; |
| 1927 | case DW_LANG_Fortran95: printf ("(Fortran 95)"); break; |
| 1928 | /* DWARF 3 values. */ |
| 1929 | case DW_LANG_PLI: printf ("(PLI)"); break; |
| 1930 | case DW_LANG_ObjC: printf ("(Objective C)"); break; |
| 1931 | case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break; |
| 1932 | case DW_LANG_UPC: printf ("(Unified Parallel C)"); break; |
| 1933 | case DW_LANG_D: printf ("(D)"); break; |
| 1934 | /* DWARF 4 values. */ |
| 1935 | case DW_LANG_Python: printf ("(Python)"); break; |
| 1936 | /* DWARF 5 values. */ |
| 1937 | case DW_LANG_Go: printf ("(Go)"); break; |
| 1938 | case DW_LANG_C_plus_plus_11: printf ("(C++11)"); break; |
| 1939 | case DW_LANG_C11: printf ("(C11)"); break; |
| 1940 | case DW_LANG_C_plus_plus_14: printf ("(C++14)"); break; |
| 1941 | /* MIPS extension. */ |
| 1942 | case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break; |
| 1943 | /* UPC extension. */ |
| 1944 | case DW_LANG_Upc: printf ("(Unified Parallel C)"); break; |
| 1945 | default: |
| 1946 | if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user) |
| 1947 | printf (_("(implementation defined: %s)"), |
| 1948 | dwarf_vmatoa ("x", uvalue)); |
| 1949 | else |
| 1950 | printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue)); |
| 1951 | break; |
| 1952 | } |
| 1953 | break; |
| 1954 | |
| 1955 | case DW_AT_encoding: |
| 1956 | printf ("\t"); |
| 1957 | switch (uvalue) |
| 1958 | { |
| 1959 | case DW_ATE_void: printf ("(void)"); break; |
| 1960 | case DW_ATE_address: printf ("(machine address)"); break; |
| 1961 | case DW_ATE_boolean: printf ("(boolean)"); break; |
| 1962 | case DW_ATE_complex_float: printf ("(complex float)"); break; |
| 1963 | case DW_ATE_float: printf ("(float)"); break; |
| 1964 | case DW_ATE_signed: printf ("(signed)"); break; |
| 1965 | case DW_ATE_signed_char: printf ("(signed char)"); break; |
| 1966 | case DW_ATE_unsigned: printf ("(unsigned)"); break; |
| 1967 | case DW_ATE_unsigned_char: printf ("(unsigned char)"); break; |
| 1968 | /* DWARF 2.1 values: */ |
| 1969 | case DW_ATE_imaginary_float: printf ("(imaginary float)"); break; |
| 1970 | case DW_ATE_decimal_float: printf ("(decimal float)"); break; |
| 1971 | /* DWARF 3 values: */ |
| 1972 | case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break; |
| 1973 | case DW_ATE_numeric_string: printf ("(numeric_string)"); break; |
| 1974 | case DW_ATE_edited: printf ("(edited)"); break; |
| 1975 | case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break; |
| 1976 | case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break; |
| 1977 | /* HP extensions: */ |
| 1978 | case DW_ATE_HP_float80: printf ("(HP_float80)"); break; |
| 1979 | case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break; |
| 1980 | case DW_ATE_HP_float128: printf ("(HP_float128)"); break; |
| 1981 | case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break; |
| 1982 | case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break; |
| 1983 | case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break; |
| 1984 | case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break; |
| 1985 | |
| 1986 | default: |
| 1987 | if (uvalue >= DW_ATE_lo_user |
| 1988 | && uvalue <= DW_ATE_hi_user) |
| 1989 | printf (_("(user defined type)")); |
| 1990 | else |
| 1991 | printf (_("(unknown type)")); |
| 1992 | break; |
| 1993 | } |
| 1994 | break; |
| 1995 | |
| 1996 | case DW_AT_accessibility: |
| 1997 | printf ("\t"); |
| 1998 | switch (uvalue) |
| 1999 | { |
| 2000 | case DW_ACCESS_public: printf ("(public)"); break; |
| 2001 | case DW_ACCESS_protected: printf ("(protected)"); break; |
| 2002 | case DW_ACCESS_private: printf ("(private)"); break; |
| 2003 | default: |
| 2004 | printf (_("(unknown accessibility)")); |
| 2005 | break; |
| 2006 | } |
| 2007 | break; |
| 2008 | |
| 2009 | case DW_AT_visibility: |
| 2010 | printf ("\t"); |
| 2011 | switch (uvalue) |
| 2012 | { |
| 2013 | case DW_VIS_local: printf ("(local)"); break; |
| 2014 | case DW_VIS_exported: printf ("(exported)"); break; |
| 2015 | case DW_VIS_qualified: printf ("(qualified)"); break; |
| 2016 | default: printf (_("(unknown visibility)")); break; |
| 2017 | } |
| 2018 | break; |
| 2019 | |
| 2020 | case DW_AT_virtuality: |
| 2021 | printf ("\t"); |
| 2022 | switch (uvalue) |
| 2023 | { |
| 2024 | case DW_VIRTUALITY_none: printf ("(none)"); break; |
| 2025 | case DW_VIRTUALITY_virtual: printf ("(virtual)"); break; |
| 2026 | case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break; |
| 2027 | default: printf (_("(unknown virtuality)")); break; |
| 2028 | } |
| 2029 | break; |
| 2030 | |
| 2031 | case DW_AT_identifier_case: |
| 2032 | printf ("\t"); |
| 2033 | switch (uvalue) |
| 2034 | { |
| 2035 | case DW_ID_case_sensitive: printf ("(case_sensitive)"); break; |
| 2036 | case DW_ID_up_case: printf ("(up_case)"); break; |
| 2037 | case DW_ID_down_case: printf ("(down_case)"); break; |
| 2038 | case DW_ID_case_insensitive: printf ("(case_insensitive)"); break; |
| 2039 | default: printf (_("(unknown case)")); break; |
| 2040 | } |
| 2041 | break; |
| 2042 | |
| 2043 | case DW_AT_calling_convention: |
| 2044 | printf ("\t"); |
| 2045 | switch (uvalue) |
| 2046 | { |
| 2047 | case DW_CC_normal: printf ("(normal)"); break; |
| 2048 | case DW_CC_program: printf ("(program)"); break; |
| 2049 | case DW_CC_nocall: printf ("(nocall)"); break; |
| 2050 | default: |
| 2051 | if (uvalue >= DW_CC_lo_user |
| 2052 | && uvalue <= DW_CC_hi_user) |
| 2053 | printf (_("(user defined)")); |
| 2054 | else |
| 2055 | printf (_("(unknown convention)")); |
| 2056 | } |
| 2057 | break; |
| 2058 | |
| 2059 | case DW_AT_ordering: |
| 2060 | printf ("\t"); |
| 2061 | switch (uvalue) |
| 2062 | { |
| 2063 | case -1: printf (_("(undefined)")); break; |
| 2064 | case 0: printf ("(row major)"); break; |
| 2065 | case 1: printf ("(column major)"); break; |
| 2066 | } |
| 2067 | break; |
| 2068 | |
| 2069 | case DW_AT_frame_base: |
| 2070 | have_frame_base = 1; |
| 2071 | case DW_AT_location: |
| 2072 | case DW_AT_string_length: |
| 2073 | case DW_AT_return_addr: |
| 2074 | case DW_AT_data_member_location: |
| 2075 | case DW_AT_vtable_elem_location: |
| 2076 | case DW_AT_segment: |
| 2077 | case DW_AT_static_link: |
| 2078 | case DW_AT_use_location: |
| 2079 | case DW_AT_GNU_call_site_value: |
| 2080 | case DW_AT_GNU_call_site_data_value: |
| 2081 | case DW_AT_GNU_call_site_target: |
| 2082 | case DW_AT_GNU_call_site_target_clobbered: |
| 2083 | if ((dwarf_version < 4 |
| 2084 | && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| 2085 | || form == DW_FORM_sec_offset) |
| 2086 | printf (_(" (location list)")); |
| 2087 | /* Fall through. */ |
| 2088 | case DW_AT_allocated: |
| 2089 | case DW_AT_associated: |
| 2090 | case DW_AT_data_location: |
| 2091 | case DW_AT_stride: |
| 2092 | case DW_AT_upper_bound: |
| 2093 | case DW_AT_lower_bound: |
| 2094 | if (block_start) |
| 2095 | { |
| 2096 | int need_frame_base; |
| 2097 | |
| 2098 | printf ("\t("); |
| 2099 | need_frame_base = decode_location_expression (block_start, |
| 2100 | pointer_size, |
| 2101 | offset_size, |
| 2102 | dwarf_version, |
| 2103 | uvalue, |
| 2104 | cu_offset, section); |
| 2105 | printf (")"); |
| 2106 | if (need_frame_base && !have_frame_base) |
| 2107 | printf (_(" [without DW_AT_frame_base]")); |
| 2108 | } |
| 2109 | break; |
| 2110 | |
| 2111 | case DW_AT_import: |
| 2112 | { |
| 2113 | if (form == DW_FORM_ref_sig8 |
| 2114 | || form == DW_FORM_GNU_ref_alt) |
| 2115 | break; |
| 2116 | |
| 2117 | if (form == DW_FORM_ref1 |
| 2118 | || form == DW_FORM_ref2 |
| 2119 | || form == DW_FORM_ref4 |
| 2120 | || form == DW_FORM_ref_udata) |
| 2121 | uvalue += cu_offset; |
| 2122 | |
| 2123 | if (uvalue >= section->size) |
| 2124 | warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"), |
| 2125 | dwarf_vmatoa ("x", uvalue), |
| 2126 | (unsigned long) (orig_data - section->start)); |
| 2127 | else |
| 2128 | { |
| 2129 | unsigned long abbrev_number; |
| 2130 | abbrev_entry * entry; |
| 2131 | |
| 2132 | abbrev_number = read_uleb128 (section->start + uvalue, NULL, end); |
| 2133 | |
| 2134 | printf (_("\t[Abbrev Number: %ld"), abbrev_number); |
| 2135 | /* Don't look up abbrev for DW_FORM_ref_addr, as it very often will |
| 2136 | use different abbrev table, and we don't track .debug_info chunks |
| 2137 | yet. */ |
| 2138 | if (form != DW_FORM_ref_addr) |
| 2139 | { |
| 2140 | for (entry = first_abbrev; entry != NULL; entry = entry->next) |
| 2141 | if (entry->entry == abbrev_number) |
| 2142 | break; |
| 2143 | if (entry != NULL) |
| 2144 | printf (" (%s)", get_TAG_name (entry->tag)); |
| 2145 | } |
| 2146 | printf ("]"); |
| 2147 | } |
| 2148 | } |
| 2149 | break; |
| 2150 | |
| 2151 | default: |
| 2152 | break; |
| 2153 | } |
| 2154 | |
| 2155 | return data; |
| 2156 | } |
| 2157 | |
| 2158 | static const char * |
| 2159 | get_AT_name (unsigned long attribute) |
| 2160 | { |
| 2161 | const char *name; |
| 2162 | |
| 2163 | if (attribute == 0) |
| 2164 | return "DW_AT value: 0"; |
| 2165 | |
| 2166 | /* One value is shared by the MIPS and HP extensions: */ |
| 2167 | if (attribute == DW_AT_MIPS_fde) |
| 2168 | return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable"; |
| 2169 | |
| 2170 | name = get_DW_AT_name (attribute); |
| 2171 | |
| 2172 | if (name == NULL) |
| 2173 | { |
| 2174 | static char buffer[100]; |
| 2175 | |
| 2176 | snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), |
| 2177 | attribute); |
| 2178 | return buffer; |
| 2179 | } |
| 2180 | |
| 2181 | return name; |
| 2182 | } |
| 2183 | |
| 2184 | static unsigned char * |
| 2185 | read_and_display_attr (unsigned long attribute, |
| 2186 | unsigned long form, |
| 2187 | unsigned char * data, |
| 2188 | unsigned char * end, |
| 2189 | dwarf_vma cu_offset, |
| 2190 | dwarf_vma pointer_size, |
| 2191 | dwarf_vma offset_size, |
| 2192 | int dwarf_version, |
| 2193 | debug_info * debug_info_p, |
| 2194 | int do_loc, |
| 2195 | struct dwarf_section * section, |
| 2196 | struct cu_tu_set * this_set) |
| 2197 | { |
| 2198 | if (!do_loc) |
| 2199 | printf (" %-18s:", get_AT_name (attribute)); |
| 2200 | data = read_and_display_attr_value (attribute, form, data, end, |
| 2201 | cu_offset, pointer_size, offset_size, |
| 2202 | dwarf_version, debug_info_p, |
| 2203 | do_loc, section, this_set); |
| 2204 | if (!do_loc) |
| 2205 | printf ("\n"); |
| 2206 | return data; |
| 2207 | } |
| 2208 | |
| 2209 | /* Process the contents of a .debug_info section. If do_loc is non-zero |
| 2210 | then we are scanning for location lists and we do not want to display |
| 2211 | anything to the user. If do_types is non-zero, we are processing |
| 2212 | a .debug_types section instead of a .debug_info section. */ |
| 2213 | |
| 2214 | static int |
| 2215 | process_debug_info (struct dwarf_section *section, |
| 2216 | void *file, |
| 2217 | enum dwarf_section_display_enum abbrev_sec, |
| 2218 | int do_loc, |
| 2219 | int do_types) |
| 2220 | { |
| 2221 | unsigned char *start = section->start; |
| 2222 | unsigned char *end = start + section->size; |
| 2223 | unsigned char *section_begin; |
| 2224 | unsigned int unit; |
| 2225 | unsigned int num_units = 0; |
| 2226 | |
| 2227 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 2228 | && num_debug_info_entries == 0 |
| 2229 | && ! do_types) |
| 2230 | { |
| 2231 | dwarf_vma length; |
| 2232 | |
| 2233 | /* First scan the section to get the number of comp units. */ |
| 2234 | for (section_begin = start, num_units = 0; section_begin < end; |
| 2235 | num_units ++) |
| 2236 | { |
| 2237 | /* Read the first 4 bytes. For a 32-bit DWARF section, this |
| 2238 | will be the length. For a 64-bit DWARF section, it'll be |
| 2239 | the escape code 0xffffffff followed by an 8 byte length. */ |
| 2240 | SAFE_BYTE_GET (length, section_begin, 4, end); |
| 2241 | |
| 2242 | if (length == 0xffffffff) |
| 2243 | { |
| 2244 | SAFE_BYTE_GET (length, section_begin + 4, 8, end); |
| 2245 | section_begin += length + 12; |
| 2246 | } |
| 2247 | else if (length >= 0xfffffff0 && length < 0xffffffff) |
| 2248 | { |
| 2249 | warn (_("Reserved length value (0x%s) found in section %s\n"), |
| 2250 | dwarf_vmatoa ("x", length), section->name); |
| 2251 | return 0; |
| 2252 | } |
| 2253 | else |
| 2254 | section_begin += length + 4; |
| 2255 | |
| 2256 | /* Negative values are illegal, they may even cause infinite |
| 2257 | looping. This can happen if we can't accurately apply |
| 2258 | relocations to an object file. */ |
| 2259 | if ((signed long) length <= 0) |
| 2260 | { |
| 2261 | warn (_("Corrupt unit length (0x%s) found in section %s\n"), |
| 2262 | dwarf_vmatoa ("x", length), section->name); |
| 2263 | return 0; |
| 2264 | } |
| 2265 | } |
| 2266 | |
| 2267 | if (num_units == 0) |
| 2268 | { |
| 2269 | error (_("No comp units in %s section ?\n"), section->name); |
| 2270 | return 0; |
| 2271 | } |
| 2272 | |
| 2273 | /* Then allocate an array to hold the information. */ |
| 2274 | debug_information = (debug_info *) cmalloc (num_units, |
| 2275 | sizeof (* debug_information)); |
| 2276 | if (debug_information == NULL) |
| 2277 | { |
| 2278 | error (_("Not enough memory for a debug info array of %u entries\n"), |
| 2279 | num_units); |
| 2280 | return 0; |
| 2281 | } |
| 2282 | } |
| 2283 | |
| 2284 | if (!do_loc) |
| 2285 | { |
| 2286 | if (dwarf_start_die == 0) |
| 2287 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 2288 | |
| 2289 | load_debug_section (str, file); |
| 2290 | load_debug_section (str_dwo, file); |
| 2291 | load_debug_section (str_index, file); |
| 2292 | load_debug_section (str_index_dwo, file); |
| 2293 | load_debug_section (debug_addr, file); |
| 2294 | } |
| 2295 | |
| 2296 | load_debug_section (abbrev_sec, file); |
| 2297 | if (debug_displays [abbrev_sec].section.start == NULL) |
| 2298 | { |
| 2299 | warn (_("Unable to locate %s section!\n"), |
| 2300 | debug_displays [abbrev_sec].section.name); |
| 2301 | return 0; |
| 2302 | } |
| 2303 | |
| 2304 | for (section_begin = start, unit = 0; start < end; unit++) |
| 2305 | { |
| 2306 | DWARF2_Internal_CompUnit compunit; |
| 2307 | unsigned char *hdrptr; |
| 2308 | unsigned char *tags; |
| 2309 | int level, last_level, saved_level; |
| 2310 | dwarf_vma cu_offset; |
| 2311 | unsigned int offset_size; |
| 2312 | int initial_length_size; |
| 2313 | dwarf_vma signature_high = 0; |
| 2314 | dwarf_vma signature_low = 0; |
| 2315 | dwarf_vma type_offset = 0; |
| 2316 | struct cu_tu_set *this_set; |
| 2317 | dwarf_vma abbrev_base; |
| 2318 | size_t abbrev_size; |
| 2319 | |
| 2320 | hdrptr = start; |
| 2321 | |
| 2322 | SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 4, end); |
| 2323 | |
| 2324 | if (compunit.cu_length == 0xffffffff) |
| 2325 | { |
| 2326 | SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 8, end); |
| 2327 | offset_size = 8; |
| 2328 | initial_length_size = 12; |
| 2329 | } |
| 2330 | else |
| 2331 | { |
| 2332 | offset_size = 4; |
| 2333 | initial_length_size = 4; |
| 2334 | } |
| 2335 | |
| 2336 | SAFE_BYTE_GET_AND_INC (compunit.cu_version, hdrptr, 2, end); |
| 2337 | |
| 2338 | cu_offset = start - section_begin; |
| 2339 | |
| 2340 | this_set = find_cu_tu_set_v2 (cu_offset, do_types); |
| 2341 | |
| 2342 | SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end); |
| 2343 | |
| 2344 | if (this_set == NULL) |
| 2345 | { |
| 2346 | abbrev_base = 0; |
| 2347 | abbrev_size = debug_displays [abbrev_sec].section.size; |
| 2348 | } |
| 2349 | else |
| 2350 | { |
| 2351 | abbrev_base = this_set->section_offsets [DW_SECT_ABBREV]; |
| 2352 | abbrev_size = this_set->section_sizes [DW_SECT_ABBREV]; |
| 2353 | } |
| 2354 | |
| 2355 | SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end); |
| 2356 | /* PR 17512: file: 001-108546-0.001:0.1. */ |
| 2357 | if (compunit.cu_pointer_size < 2 || compunit.cu_pointer_size > 8) |
| 2358 | { |
| 2359 | warn (_("Invalid pointer size (%d) in compunit header, using %d instead\n"), |
| 2360 | compunit.cu_pointer_size, offset_size); |
| 2361 | compunit.cu_pointer_size = offset_size; |
| 2362 | } |
| 2363 | |
| 2364 | if (do_types) |
| 2365 | { |
| 2366 | SAFE_BYTE_GET64 (hdrptr, &signature_high, &signature_low, end); |
| 2367 | hdrptr += 8; |
| 2368 | SAFE_BYTE_GET_AND_INC (type_offset, hdrptr, offset_size, end); |
| 2369 | } |
| 2370 | |
| 2371 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 2372 | && num_debug_info_entries == 0 |
| 2373 | && ! do_types) |
| 2374 | { |
| 2375 | debug_information [unit].cu_offset = cu_offset; |
| 2376 | debug_information [unit].pointer_size |
| 2377 | = compunit.cu_pointer_size; |
| 2378 | debug_information [unit].offset_size = offset_size; |
| 2379 | debug_information [unit].dwarf_version = compunit.cu_version; |
| 2380 | debug_information [unit].base_address = 0; |
| 2381 | debug_information [unit].addr_base = DEBUG_INFO_UNAVAILABLE; |
| 2382 | debug_information [unit].ranges_base = DEBUG_INFO_UNAVAILABLE; |
| 2383 | debug_information [unit].loc_offsets = NULL; |
| 2384 | debug_information [unit].have_frame_base = NULL; |
| 2385 | debug_information [unit].max_loc_offsets = 0; |
| 2386 | debug_information [unit].num_loc_offsets = 0; |
| 2387 | debug_information [unit].range_lists = NULL; |
| 2388 | debug_information [unit].max_range_lists= 0; |
| 2389 | debug_information [unit].num_range_lists = 0; |
| 2390 | } |
| 2391 | |
| 2392 | if (!do_loc && dwarf_start_die == 0) |
| 2393 | { |
| 2394 | printf (_(" Compilation Unit @ offset 0x%s:\n"), |
| 2395 | dwarf_vmatoa ("x", cu_offset)); |
| 2396 | printf (_(" Length: 0x%s (%s)\n"), |
| 2397 | dwarf_vmatoa ("x", compunit.cu_length), |
| 2398 | offset_size == 8 ? "64-bit" : "32-bit"); |
| 2399 | printf (_(" Version: %d\n"), compunit.cu_version); |
| 2400 | printf (_(" Abbrev Offset: 0x%s\n"), |
| 2401 | dwarf_vmatoa ("x", compunit.cu_abbrev_offset)); |
| 2402 | printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size); |
| 2403 | if (do_types) |
| 2404 | { |
| 2405 | char buf[64]; |
| 2406 | |
| 2407 | printf (_(" Signature: 0x%s\n"), |
| 2408 | dwarf_vmatoa64 (signature_high, signature_low, |
| 2409 | buf, sizeof (buf))); |
| 2410 | printf (_(" Type Offset: 0x%s\n"), |
| 2411 | dwarf_vmatoa ("x", type_offset)); |
| 2412 | } |
| 2413 | if (this_set != NULL) |
| 2414 | { |
| 2415 | dwarf_vma *offsets = this_set->section_offsets; |
| 2416 | size_t *sizes = this_set->section_sizes; |
| 2417 | |
| 2418 | printf (_(" Section contributions:\n")); |
| 2419 | printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"), |
| 2420 | dwarf_vmatoa ("x", offsets [DW_SECT_ABBREV]), |
| 2421 | dwarf_vmatoa ("x", sizes [DW_SECT_ABBREV])); |
| 2422 | printf (_(" .debug_line.dwo: 0x%s 0x%s\n"), |
| 2423 | dwarf_vmatoa ("x", offsets [DW_SECT_LINE]), |
| 2424 | dwarf_vmatoa ("x", sizes [DW_SECT_LINE])); |
| 2425 | printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"), |
| 2426 | dwarf_vmatoa ("x", offsets [DW_SECT_LOC]), |
| 2427 | dwarf_vmatoa ("x", sizes [DW_SECT_LOC])); |
| 2428 | printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"), |
| 2429 | dwarf_vmatoa ("x", offsets [DW_SECT_STR_OFFSETS]), |
| 2430 | dwarf_vmatoa ("x", sizes [DW_SECT_STR_OFFSETS])); |
| 2431 | } |
| 2432 | } |
| 2433 | |
| 2434 | if (cu_offset + compunit.cu_length + initial_length_size |
| 2435 | > section->size) |
| 2436 | { |
| 2437 | warn (_("Debug info is corrupted, length of CU at %s" |
| 2438 | " extends beyond end of section (length = %s)\n"), |
| 2439 | dwarf_vmatoa ("x", cu_offset), |
| 2440 | dwarf_vmatoa ("x", compunit.cu_length)); |
| 2441 | break; |
| 2442 | } |
| 2443 | tags = hdrptr; |
| 2444 | start += compunit.cu_length + initial_length_size; |
| 2445 | |
| 2446 | if (compunit.cu_version != 2 |
| 2447 | && compunit.cu_version != 3 |
| 2448 | && compunit.cu_version != 4) |
| 2449 | { |
| 2450 | warn (_("CU at offset %s contains corrupt or " |
| 2451 | "unsupported version number: %d.\n"), |
| 2452 | dwarf_vmatoa ("x", cu_offset), compunit.cu_version); |
| 2453 | continue; |
| 2454 | } |
| 2455 | |
| 2456 | free_abbrevs (); |
| 2457 | |
| 2458 | /* Process the abbrevs used by this compilation unit. */ |
| 2459 | if (compunit.cu_abbrev_offset >= abbrev_size) |
| 2460 | warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"), |
| 2461 | (unsigned long) compunit.cu_abbrev_offset, |
| 2462 | (unsigned long) abbrev_size); |
| 2463 | else |
| 2464 | process_abbrev_section |
| 2465 | (((unsigned char *) debug_displays [abbrev_sec].section.start |
| 2466 | + abbrev_base + compunit.cu_abbrev_offset), |
| 2467 | ((unsigned char *) debug_displays [abbrev_sec].section.start |
| 2468 | + abbrev_base + abbrev_size)); |
| 2469 | |
| 2470 | level = 0; |
| 2471 | last_level = level; |
| 2472 | saved_level = -1; |
| 2473 | while (tags < start) |
| 2474 | { |
| 2475 | unsigned int bytes_read; |
| 2476 | unsigned long abbrev_number; |
| 2477 | unsigned long die_offset; |
| 2478 | abbrev_entry *entry; |
| 2479 | abbrev_attr *attr; |
| 2480 | int do_printing = 1; |
| 2481 | |
| 2482 | die_offset = tags - section_begin; |
| 2483 | |
| 2484 | abbrev_number = read_uleb128 (tags, & bytes_read, start); |
| 2485 | tags += bytes_read; |
| 2486 | |
| 2487 | /* A null DIE marks the end of a list of siblings or it may also be |
| 2488 | a section padding. */ |
| 2489 | if (abbrev_number == 0) |
| 2490 | { |
| 2491 | /* Check if it can be a section padding for the last CU. */ |
| 2492 | if (level == 0 && start == end) |
| 2493 | { |
| 2494 | unsigned char *chk; |
| 2495 | |
| 2496 | for (chk = tags; chk < start; chk++) |
| 2497 | if (*chk != 0) |
| 2498 | break; |
| 2499 | if (chk == start) |
| 2500 | break; |
| 2501 | } |
| 2502 | |
| 2503 | if (!do_loc && die_offset >= dwarf_start_die |
| 2504 | && (dwarf_cutoff_level == -1 |
| 2505 | || level < dwarf_cutoff_level)) |
| 2506 | printf (_(" <%d><%lx>: Abbrev Number: 0\n"), |
| 2507 | level, die_offset); |
| 2508 | |
| 2509 | --level; |
| 2510 | if (level < 0) |
| 2511 | { |
| 2512 | static unsigned num_bogus_warns = 0; |
| 2513 | |
| 2514 | if (num_bogus_warns < 3) |
| 2515 | { |
| 2516 | warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"), |
| 2517 | die_offset, section->name); |
| 2518 | num_bogus_warns ++; |
| 2519 | if (num_bogus_warns == 3) |
| 2520 | warn (_("Further warnings about bogus end-of-sibling markers suppressed\n")); |
| 2521 | } |
| 2522 | } |
| 2523 | if (dwarf_start_die != 0 && level < saved_level) |
| 2524 | return 1; |
| 2525 | continue; |
| 2526 | } |
| 2527 | |
| 2528 | if (!do_loc) |
| 2529 | { |
| 2530 | if (dwarf_start_die != 0 && die_offset < dwarf_start_die) |
| 2531 | do_printing = 0; |
| 2532 | else |
| 2533 | { |
| 2534 | if (dwarf_start_die != 0 && die_offset == dwarf_start_die) |
| 2535 | saved_level = level; |
| 2536 | do_printing = (dwarf_cutoff_level == -1 |
| 2537 | || level < dwarf_cutoff_level); |
| 2538 | if (do_printing) |
| 2539 | printf (_(" <%d><%lx>: Abbrev Number: %lu"), |
| 2540 | level, die_offset, abbrev_number); |
| 2541 | else if (dwarf_cutoff_level == -1 |
| 2542 | || last_level < dwarf_cutoff_level) |
| 2543 | printf (_(" <%d><%lx>: ...\n"), level, die_offset); |
| 2544 | last_level = level; |
| 2545 | } |
| 2546 | } |
| 2547 | |
| 2548 | /* Scan through the abbreviation list until we reach the |
| 2549 | correct entry. */ |
| 2550 | for (entry = first_abbrev; |
| 2551 | entry && entry->entry != abbrev_number; |
| 2552 | entry = entry->next) |
| 2553 | continue; |
| 2554 | |
| 2555 | if (entry == NULL) |
| 2556 | { |
| 2557 | if (!do_loc && do_printing) |
| 2558 | { |
| 2559 | printf ("\n"); |
| 2560 | fflush (stdout); |
| 2561 | } |
| 2562 | warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"), |
| 2563 | die_offset, abbrev_number); |
| 2564 | return 0; |
| 2565 | } |
| 2566 | |
| 2567 | if (!do_loc && do_printing) |
| 2568 | printf (" (%s)\n", get_TAG_name (entry->tag)); |
| 2569 | |
| 2570 | switch (entry->tag) |
| 2571 | { |
| 2572 | default: |
| 2573 | need_base_address = 0; |
| 2574 | break; |
| 2575 | case DW_TAG_compile_unit: |
| 2576 | need_base_address = 1; |
| 2577 | break; |
| 2578 | case DW_TAG_entry_point: |
| 2579 | case DW_TAG_subprogram: |
| 2580 | need_base_address = 0; |
| 2581 | /* Assuming that there is no DW_AT_frame_base. */ |
| 2582 | have_frame_base = 0; |
| 2583 | break; |
| 2584 | } |
| 2585 | |
| 2586 | for (attr = entry->first_attr; |
| 2587 | attr && attr->attribute; |
| 2588 | attr = attr->next) |
| 2589 | { |
| 2590 | debug_info *arg; |
| 2591 | |
| 2592 | if (! do_loc && do_printing) |
| 2593 | /* Show the offset from where the tag was extracted. */ |
| 2594 | printf (" <%lx>", (unsigned long)(tags - section_begin)); |
| 2595 | |
| 2596 | arg = debug_information; |
| 2597 | if (debug_information) |
| 2598 | arg += unit; |
| 2599 | |
| 2600 | tags = read_and_display_attr (attr->attribute, |
| 2601 | attr->form, |
| 2602 | tags, |
| 2603 | end, |
| 2604 | cu_offset, |
| 2605 | compunit.cu_pointer_size, |
| 2606 | offset_size, |
| 2607 | compunit.cu_version, |
| 2608 | arg, |
| 2609 | do_loc || ! do_printing, |
| 2610 | section, |
| 2611 | this_set); |
| 2612 | } |
| 2613 | |
| 2614 | if (entry->children) |
| 2615 | ++level; |
| 2616 | } |
| 2617 | } |
| 2618 | |
| 2619 | /* Set num_debug_info_entries here so that it can be used to check if |
| 2620 | we need to process .debug_loc and .debug_ranges sections. */ |
| 2621 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 2622 | && num_debug_info_entries == 0 |
| 2623 | && ! do_types) |
| 2624 | num_debug_info_entries = num_units; |
| 2625 | |
| 2626 | if (!do_loc) |
| 2627 | printf ("\n"); |
| 2628 | |
| 2629 | return 1; |
| 2630 | } |
| 2631 | |
| 2632 | /* Locate and scan the .debug_info section in the file and record the pointer |
| 2633 | sizes and offsets for the compilation units in it. Usually an executable |
| 2634 | will have just one pointer size, but this is not guaranteed, and so we try |
| 2635 | not to make any assumptions. Returns zero upon failure, or the number of |
| 2636 | compilation units upon success. */ |
| 2637 | |
| 2638 | static unsigned int |
| 2639 | load_debug_info (void * file) |
| 2640 | { |
| 2641 | /* Reset the last pointer size so that we can issue correct error |
| 2642 | messages if we are displaying the contents of more than one section. */ |
| 2643 | last_pointer_size = 0; |
| 2644 | warned_about_missing_comp_units = FALSE; |
| 2645 | |
| 2646 | /* If we have already tried and failed to load the .debug_info |
| 2647 | section then do not bother to repeat the task. */ |
| 2648 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
| 2649 | return 0; |
| 2650 | |
| 2651 | /* If we already have the information there is nothing else to do. */ |
| 2652 | if (num_debug_info_entries > 0) |
| 2653 | return num_debug_info_entries; |
| 2654 | |
| 2655 | /* If this is a DWARF package file, load the CU and TU indexes. */ |
| 2656 | load_cu_tu_indexes (file); |
| 2657 | |
| 2658 | if (load_debug_section (info, file) |
| 2659 | && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0)) |
| 2660 | return num_debug_info_entries; |
| 2661 | else if (load_debug_section (info_dwo, file) |
| 2662 | && process_debug_info (&debug_displays [info_dwo].section, file, |
| 2663 | abbrev_dwo, 1, 0)) |
| 2664 | return num_debug_info_entries; |
| 2665 | |
| 2666 | num_debug_info_entries = DEBUG_INFO_UNAVAILABLE; |
| 2667 | return 0; |
| 2668 | } |
| 2669 | |
| 2670 | /* Read a DWARF .debug_line section header starting at DATA. |
| 2671 | Upon success returns an updated DATA pointer and the LINFO |
| 2672 | structure and the END_OF_SEQUENCE pointer will be filled in. |
| 2673 | Otherwise returns NULL. */ |
| 2674 | |
| 2675 | static unsigned char * |
| 2676 | read_debug_line_header (struct dwarf_section * section, |
| 2677 | unsigned char * data, |
| 2678 | unsigned char * end, |
| 2679 | DWARF2_Internal_LineInfo * linfo, |
| 2680 | unsigned char ** end_of_sequence) |
| 2681 | { |
| 2682 | unsigned char *hdrptr; |
| 2683 | unsigned int offset_size; |
| 2684 | unsigned int initial_length_size; |
| 2685 | |
| 2686 | /* Extract information from the Line Number Program Header. |
| 2687 | (section 6.2.4 in the Dwarf3 doc). */ |
| 2688 | hdrptr = data; |
| 2689 | |
| 2690 | /* Get and check the length of the block. */ |
| 2691 | SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 4, end); |
| 2692 | |
| 2693 | if (linfo->li_length == 0xffffffff) |
| 2694 | { |
| 2695 | /* This section is 64-bit DWARF 3. */ |
| 2696 | SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 8, end); |
| 2697 | offset_size = 8; |
| 2698 | initial_length_size = 12; |
| 2699 | } |
| 2700 | else |
| 2701 | { |
| 2702 | offset_size = 4; |
| 2703 | initial_length_size = 4; |
| 2704 | } |
| 2705 | |
| 2706 | if (linfo->li_length + initial_length_size > section->size) |
| 2707 | { |
| 2708 | /* If the length is just a bias against the initial_length_size then |
| 2709 | this means that the field has a relocation against it which has not |
| 2710 | been applied. (Ie we are dealing with an object file, not a linked |
| 2711 | binary). Do not complain but instead assume that the rest of the |
| 2712 | section applies to this particular header. */ |
| 2713 | if (linfo->li_length == - initial_length_size) |
| 2714 | { |
| 2715 | linfo->li_length = section->size - initial_length_size; |
| 2716 | } |
| 2717 | else |
| 2718 | { |
| 2719 | warn (_("The line info appears to be corrupt - the section is too small\n")); |
| 2720 | return NULL; |
| 2721 | } |
| 2722 | } |
| 2723 | |
| 2724 | /* Get and check the version number. */ |
| 2725 | SAFE_BYTE_GET_AND_INC (linfo->li_version, hdrptr, 2, end); |
| 2726 | |
| 2727 | if (linfo->li_version != 2 |
| 2728 | && linfo->li_version != 3 |
| 2729 | && linfo->li_version != 4) |
| 2730 | { |
| 2731 | warn (_("Only DWARF version 2, 3 and 4 line info is currently supported.\n")); |
| 2732 | return NULL; |
| 2733 | } |
| 2734 | |
| 2735 | SAFE_BYTE_GET_AND_INC (linfo->li_prologue_length, hdrptr, offset_size, end); |
| 2736 | SAFE_BYTE_GET_AND_INC (linfo->li_min_insn_length, hdrptr, 1, end); |
| 2737 | |
| 2738 | if (linfo->li_version >= 4) |
| 2739 | { |
| 2740 | SAFE_BYTE_GET_AND_INC (linfo->li_max_ops_per_insn, hdrptr, 1, end); |
| 2741 | |
| 2742 | if (linfo->li_max_ops_per_insn == 0) |
| 2743 | { |
| 2744 | warn (_("Invalid maximum operations per insn.\n")); |
| 2745 | return NULL; |
| 2746 | } |
| 2747 | } |
| 2748 | else |
| 2749 | linfo->li_max_ops_per_insn = 1; |
| 2750 | |
| 2751 | SAFE_BYTE_GET_AND_INC (linfo->li_default_is_stmt, hdrptr, 1, end); |
| 2752 | SAFE_SIGNED_BYTE_GET_AND_INC (linfo->li_line_base, hdrptr, 1, end); |
| 2753 | SAFE_BYTE_GET_AND_INC (linfo->li_line_range, hdrptr, 1, end); |
| 2754 | SAFE_BYTE_GET_AND_INC (linfo->li_opcode_base, hdrptr, 1, end); |
| 2755 | |
| 2756 | * end_of_sequence = data + linfo->li_length + initial_length_size; |
| 2757 | /* PR 17512: file:002-117414-0.004. */ |
| 2758 | if (* end_of_sequence > end) |
| 2759 | { |
| 2760 | warn (_("Line length %s extends beyond end of section\n"), |
| 2761 | dwarf_vmatoa ("u", linfo->li_length)); |
| 2762 | * end_of_sequence = end; |
| 2763 | return NULL; |
| 2764 | } |
| 2765 | |
| 2766 | return hdrptr; |
| 2767 | } |
| 2768 | |
| 2769 | static int |
| 2770 | display_debug_lines_raw (struct dwarf_section *section, |
| 2771 | unsigned char *data, |
| 2772 | unsigned char *end) |
| 2773 | { |
| 2774 | unsigned char *start = section->start; |
| 2775 | |
| 2776 | printf (_("Raw dump of debug contents of section %s:\n\n"), |
| 2777 | section->name); |
| 2778 | |
| 2779 | while (data < end) |
| 2780 | { |
| 2781 | static DWARF2_Internal_LineInfo saved_linfo; |
| 2782 | DWARF2_Internal_LineInfo linfo; |
| 2783 | unsigned char *standard_opcodes; |
| 2784 | unsigned char *end_of_sequence; |
| 2785 | unsigned int last_dir_entry = 0; |
| 2786 | int i; |
| 2787 | |
| 2788 | if (const_strneq (section->name, ".debug_line.") |
| 2789 | /* Note: the following does not apply to .debug_line.dwo sections. |
| 2790 | These are full debug_line sections. */ |
| 2791 | && strcmp (section->name, ".debug_line.dwo") != 0) |
| 2792 | { |
| 2793 | /* Sections named .debug_line.<foo> are fragments of a .debug_line |
| 2794 | section containing just the Line Number Statements. They are |
| 2795 | created by the assembler and intended to be used alongside gcc's |
| 2796 | -ffunction-sections command line option. When the linker's |
| 2797 | garbage collection decides to discard a .text.<foo> section it |
| 2798 | can then also discard the line number information in .debug_line.<foo>. |
| 2799 | |
| 2800 | Since the section is a fragment it does not have the details |
| 2801 | needed to fill out a LineInfo structure, so instead we use the |
| 2802 | details from the last full debug_line section that we processed. */ |
| 2803 | end_of_sequence = end; |
| 2804 | standard_opcodes = NULL; |
| 2805 | linfo = saved_linfo; |
| 2806 | reset_state_machine (linfo.li_default_is_stmt); |
| 2807 | } |
| 2808 | else |
| 2809 | { |
| 2810 | unsigned char * hdrptr; |
| 2811 | |
| 2812 | if ((hdrptr = read_debug_line_header (section, data, end, & linfo, |
| 2813 | & end_of_sequence)) == NULL) |
| 2814 | return 0; |
| 2815 | |
| 2816 | printf (_(" Offset: 0x%lx\n"), (long)(data - start)); |
| 2817 | printf (_(" Length: %ld\n"), (long) linfo.li_length); |
| 2818 | printf (_(" DWARF Version: %d\n"), linfo.li_version); |
| 2819 | printf (_(" Prologue Length: %d\n"), linfo.li_prologue_length); |
| 2820 | printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length); |
| 2821 | if (linfo.li_version >= 4) |
| 2822 | printf (_(" Maximum Ops per Instruction: %d\n"), linfo.li_max_ops_per_insn); |
| 2823 | printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt); |
| 2824 | printf (_(" Line Base: %d\n"), linfo.li_line_base); |
| 2825 | printf (_(" Line Range: %d\n"), linfo.li_line_range); |
| 2826 | printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base); |
| 2827 | |
| 2828 | /* PR 17512: file: 1665-6428-0.004. */ |
| 2829 | if (linfo.li_line_range == 0) |
| 2830 | { |
| 2831 | warn (_("Line range of 0 is invalid, using 1 instead\n")); |
| 2832 | linfo.li_line_range = 1; |
| 2833 | } |
| 2834 | |
| 2835 | reset_state_machine (linfo.li_default_is_stmt); |
| 2836 | |
| 2837 | /* Display the contents of the Opcodes table. */ |
| 2838 | standard_opcodes = hdrptr; |
| 2839 | |
| 2840 | /* PR 17512: file: 002-417945-0.004. */ |
| 2841 | if (standard_opcodes + linfo.li_opcode_base >= end) |
| 2842 | { |
| 2843 | warn (_("Line Base extends beyond end of section\n")); |
| 2844 | return 0; |
| 2845 | } |
| 2846 | |
| 2847 | printf (_("\n Opcodes:\n")); |
| 2848 | |
| 2849 | for (i = 1; i < linfo.li_opcode_base; i++) |
| 2850 | printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); |
| 2851 | |
| 2852 | /* Display the contents of the Directory table. */ |
| 2853 | data = standard_opcodes + linfo.li_opcode_base - 1; |
| 2854 | |
| 2855 | if (*data == 0) |
| 2856 | printf (_("\n The Directory Table is empty.\n")); |
| 2857 | else |
| 2858 | { |
| 2859 | printf (_("\n The Directory Table (offset 0x%lx):\n"), |
| 2860 | (long)(data - start)); |
| 2861 | |
| 2862 | while (data < end && *data != 0) |
| 2863 | { |
| 2864 | printf (" %d\t%.*s\n", ++last_dir_entry, (int) (end - data), data); |
| 2865 | |
| 2866 | data += strnlen ((char *) data, end - data) + 1; |
| 2867 | } |
| 2868 | |
| 2869 | /* PR 17512: file: 002-132094-0.004. */ |
| 2870 | if (data >= end - 1) |
| 2871 | break; |
| 2872 | } |
| 2873 | |
| 2874 | /* Skip the NUL at the end of the table. */ |
| 2875 | data++; |
| 2876 | |
| 2877 | /* Display the contents of the File Name table. */ |
| 2878 | if (*data == 0) |
| 2879 | printf (_("\n The File Name Table is empty.\n")); |
| 2880 | else |
| 2881 | { |
| 2882 | printf (_("\n The File Name Table (offset 0x%lx):\n"), |
| 2883 | (long)(data - start)); |
| 2884 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); |
| 2885 | |
| 2886 | while (data < end && *data != 0) |
| 2887 | { |
| 2888 | unsigned char *name; |
| 2889 | unsigned int bytes_read; |
| 2890 | |
| 2891 | printf (" %d\t", ++state_machine_regs.last_file_entry); |
| 2892 | name = data; |
| 2893 | data += strnlen ((char *) data, end - data) + 1; |
| 2894 | |
| 2895 | printf ("%s\t", |
| 2896 | dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| 2897 | data += bytes_read; |
| 2898 | printf ("%s\t", |
| 2899 | dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| 2900 | data += bytes_read; |
| 2901 | printf ("%s\t", |
| 2902 | dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| 2903 | data += bytes_read; |
| 2904 | printf ("%.*s\n", (int)(end - name), name); |
| 2905 | |
| 2906 | if (data == end) |
| 2907 | { |
| 2908 | warn (_("Corrupt file name table entry\n")); |
| 2909 | break; |
| 2910 | } |
| 2911 | } |
| 2912 | } |
| 2913 | |
| 2914 | /* Skip the NUL at the end of the table. */ |
| 2915 | data++; |
| 2916 | putchar ('\n'); |
| 2917 | saved_linfo = linfo; |
| 2918 | } |
| 2919 | |
| 2920 | /* Now display the statements. */ |
| 2921 | if (data >= end_of_sequence) |
| 2922 | printf (_(" No Line Number Statements.\n")); |
| 2923 | else |
| 2924 | { |
| 2925 | printf (_(" Line Number Statements:\n")); |
| 2926 | |
| 2927 | while (data < end_of_sequence) |
| 2928 | { |
| 2929 | unsigned char op_code; |
| 2930 | dwarf_signed_vma adv; |
| 2931 | dwarf_vma uladv; |
| 2932 | unsigned int bytes_read; |
| 2933 | |
| 2934 | printf (" [0x%08lx]", (long)(data - start)); |
| 2935 | |
| 2936 | op_code = *data++; |
| 2937 | |
| 2938 | if (op_code >= linfo.li_opcode_base) |
| 2939 | { |
| 2940 | op_code -= linfo.li_opcode_base; |
| 2941 | uladv = (op_code / linfo.li_line_range); |
| 2942 | if (linfo.li_max_ops_per_insn == 1) |
| 2943 | { |
| 2944 | uladv *= linfo.li_min_insn_length; |
| 2945 | state_machine_regs.address += uladv; |
| 2946 | printf (_(" Special opcode %d: " |
| 2947 | "advance Address by %s to 0x%s"), |
| 2948 | op_code, dwarf_vmatoa ("u", uladv), |
| 2949 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 2950 | } |
| 2951 | else |
| 2952 | { |
| 2953 | state_machine_regs.address |
| 2954 | += ((state_machine_regs.op_index + uladv) |
| 2955 | / linfo.li_max_ops_per_insn) |
| 2956 | * linfo.li_min_insn_length; |
| 2957 | state_machine_regs.op_index |
| 2958 | = (state_machine_regs.op_index + uladv) |
| 2959 | % linfo.li_max_ops_per_insn; |
| 2960 | printf (_(" Special opcode %d: " |
| 2961 | "advance Address by %s to 0x%s[%d]"), |
| 2962 | op_code, dwarf_vmatoa ("u", uladv), |
| 2963 | dwarf_vmatoa ("x", state_machine_regs.address), |
| 2964 | state_machine_regs.op_index); |
| 2965 | } |
| 2966 | adv = (op_code % linfo.li_line_range) + linfo.li_line_base; |
| 2967 | state_machine_regs.line += adv; |
| 2968 | printf (_(" and Line by %s to %d\n"), |
| 2969 | dwarf_vmatoa ("d", adv), state_machine_regs.line); |
| 2970 | } |
| 2971 | else switch (op_code) |
| 2972 | { |
| 2973 | case DW_LNS_extended_op: |
| 2974 | data += process_extended_line_op (data, linfo.li_default_is_stmt, end); |
| 2975 | break; |
| 2976 | |
| 2977 | case DW_LNS_copy: |
| 2978 | printf (_(" Copy\n")); |
| 2979 | break; |
| 2980 | |
| 2981 | case DW_LNS_advance_pc: |
| 2982 | uladv = read_uleb128 (data, & bytes_read, end); |
| 2983 | data += bytes_read; |
| 2984 | if (linfo.li_max_ops_per_insn == 1) |
| 2985 | { |
| 2986 | uladv *= linfo.li_min_insn_length; |
| 2987 | state_machine_regs.address += uladv; |
| 2988 | printf (_(" Advance PC by %s to 0x%s\n"), |
| 2989 | dwarf_vmatoa ("u", uladv), |
| 2990 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 2991 | } |
| 2992 | else |
| 2993 | { |
| 2994 | state_machine_regs.address |
| 2995 | += ((state_machine_regs.op_index + uladv) |
| 2996 | / linfo.li_max_ops_per_insn) |
| 2997 | * linfo.li_min_insn_length; |
| 2998 | state_machine_regs.op_index |
| 2999 | = (state_machine_regs.op_index + uladv) |
| 3000 | % linfo.li_max_ops_per_insn; |
| 3001 | printf (_(" Advance PC by %s to 0x%s[%d]\n"), |
| 3002 | dwarf_vmatoa ("u", uladv), |
| 3003 | dwarf_vmatoa ("x", state_machine_regs.address), |
| 3004 | state_machine_regs.op_index); |
| 3005 | } |
| 3006 | break; |
| 3007 | |
| 3008 | case DW_LNS_advance_line: |
| 3009 | adv = read_sleb128 (data, & bytes_read, end); |
| 3010 | data += bytes_read; |
| 3011 | state_machine_regs.line += adv; |
| 3012 | printf (_(" Advance Line by %s to %d\n"), |
| 3013 | dwarf_vmatoa ("d", adv), |
| 3014 | state_machine_regs.line); |
| 3015 | break; |
| 3016 | |
| 3017 | case DW_LNS_set_file: |
| 3018 | adv = read_uleb128 (data, & bytes_read, end); |
| 3019 | data += bytes_read; |
| 3020 | printf (_(" Set File Name to entry %s in the File Name Table\n"), |
| 3021 | dwarf_vmatoa ("d", adv)); |
| 3022 | state_machine_regs.file = adv; |
| 3023 | break; |
| 3024 | |
| 3025 | case DW_LNS_set_column: |
| 3026 | uladv = read_uleb128 (data, & bytes_read, end); |
| 3027 | data += bytes_read; |
| 3028 | printf (_(" Set column to %s\n"), |
| 3029 | dwarf_vmatoa ("u", uladv)); |
| 3030 | state_machine_regs.column = uladv; |
| 3031 | break; |
| 3032 | |
| 3033 | case DW_LNS_negate_stmt: |
| 3034 | adv = state_machine_regs.is_stmt; |
| 3035 | adv = ! adv; |
| 3036 | printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv)); |
| 3037 | state_machine_regs.is_stmt = adv; |
| 3038 | break; |
| 3039 | |
| 3040 | case DW_LNS_set_basic_block: |
| 3041 | printf (_(" Set basic block\n")); |
| 3042 | state_machine_regs.basic_block = 1; |
| 3043 | break; |
| 3044 | |
| 3045 | case DW_LNS_const_add_pc: |
| 3046 | uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); |
| 3047 | if (linfo.li_max_ops_per_insn) |
| 3048 | { |
| 3049 | uladv *= linfo.li_min_insn_length; |
| 3050 | state_machine_regs.address += uladv; |
| 3051 | printf (_(" Advance PC by constant %s to 0x%s\n"), |
| 3052 | dwarf_vmatoa ("u", uladv), |
| 3053 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 3054 | } |
| 3055 | else |
| 3056 | { |
| 3057 | state_machine_regs.address |
| 3058 | += ((state_machine_regs.op_index + uladv) |
| 3059 | / linfo.li_max_ops_per_insn) |
| 3060 | * linfo.li_min_insn_length; |
| 3061 | state_machine_regs.op_index |
| 3062 | = (state_machine_regs.op_index + uladv) |
| 3063 | % linfo.li_max_ops_per_insn; |
| 3064 | printf (_(" Advance PC by constant %s to 0x%s[%d]\n"), |
| 3065 | dwarf_vmatoa ("u", uladv), |
| 3066 | dwarf_vmatoa ("x", state_machine_regs.address), |
| 3067 | state_machine_regs.op_index); |
| 3068 | } |
| 3069 | break; |
| 3070 | |
| 3071 | case DW_LNS_fixed_advance_pc: |
| 3072 | SAFE_BYTE_GET_AND_INC (uladv, data, 2, end); |
| 3073 | state_machine_regs.address += uladv; |
| 3074 | state_machine_regs.op_index = 0; |
| 3075 | printf (_(" Advance PC by fixed size amount %s to 0x%s\n"), |
| 3076 | dwarf_vmatoa ("u", uladv), |
| 3077 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 3078 | break; |
| 3079 | |
| 3080 | case DW_LNS_set_prologue_end: |
| 3081 | printf (_(" Set prologue_end to true\n")); |
| 3082 | break; |
| 3083 | |
| 3084 | case DW_LNS_set_epilogue_begin: |
| 3085 | printf (_(" Set epilogue_begin to true\n")); |
| 3086 | break; |
| 3087 | |
| 3088 | case DW_LNS_set_isa: |
| 3089 | uladv = read_uleb128 (data, & bytes_read, end); |
| 3090 | data += bytes_read; |
| 3091 | printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv)); |
| 3092 | break; |
| 3093 | |
| 3094 | default: |
| 3095 | printf (_(" Unknown opcode %d with operands: "), op_code); |
| 3096 | |
| 3097 | if (standard_opcodes != NULL) |
| 3098 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) |
| 3099 | { |
| 3100 | printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data, |
| 3101 | &bytes_read, end)), |
| 3102 | i == 1 ? "" : ", "); |
| 3103 | data += bytes_read; |
| 3104 | } |
| 3105 | putchar ('\n'); |
| 3106 | break; |
| 3107 | } |
| 3108 | } |
| 3109 | putchar ('\n'); |
| 3110 | } |
| 3111 | } |
| 3112 | |
| 3113 | return 1; |
| 3114 | } |
| 3115 | |
| 3116 | typedef struct |
| 3117 | { |
| 3118 | unsigned char *name; |
| 3119 | unsigned int directory_index; |
| 3120 | unsigned int modification_date; |
| 3121 | unsigned int length; |
| 3122 | } File_Entry; |
| 3123 | |
| 3124 | /* Output a decoded representation of the .debug_line section. */ |
| 3125 | |
| 3126 | static int |
| 3127 | display_debug_lines_decoded (struct dwarf_section *section, |
| 3128 | unsigned char *data, |
| 3129 | unsigned char *end) |
| 3130 | { |
| 3131 | static DWARF2_Internal_LineInfo saved_linfo; |
| 3132 | |
| 3133 | printf (_("Decoded dump of debug contents of section %s:\n\n"), |
| 3134 | section->name); |
| 3135 | |
| 3136 | while (data < end) |
| 3137 | { |
| 3138 | /* This loop amounts to one iteration per compilation unit. */ |
| 3139 | DWARF2_Internal_LineInfo linfo; |
| 3140 | unsigned char *standard_opcodes; |
| 3141 | unsigned char *end_of_sequence; |
| 3142 | int i; |
| 3143 | File_Entry *file_table = NULL; |
| 3144 | unsigned int n_files = 0; |
| 3145 | unsigned char **directory_table = NULL; |
| 3146 | unsigned int n_directories = 0; |
| 3147 | |
| 3148 | if (const_strneq (section->name, ".debug_line.") |
| 3149 | /* Note: the following does not apply to .debug_line.dwo sections. |
| 3150 | These are full debug_line sections. */ |
| 3151 | && strcmp (section->name, ".debug_line.dwo") != 0) |
| 3152 | { |
| 3153 | /* See comment in display_debug_lines_raw(). */ |
| 3154 | end_of_sequence = end; |
| 3155 | standard_opcodes = NULL; |
| 3156 | linfo = saved_linfo; |
| 3157 | reset_state_machine (linfo.li_default_is_stmt); |
| 3158 | } |
| 3159 | else |
| 3160 | { |
| 3161 | unsigned char *hdrptr; |
| 3162 | |
| 3163 | if ((hdrptr = read_debug_line_header (section, data, end, & linfo, |
| 3164 | & end_of_sequence)) == NULL) |
| 3165 | return 0; |
| 3166 | |
| 3167 | reset_state_machine (linfo.li_default_is_stmt); |
| 3168 | |
| 3169 | /* Save a pointer to the contents of the Opcodes table. */ |
| 3170 | standard_opcodes = hdrptr; |
| 3171 | |
| 3172 | /* Traverse the Directory table just to count entries. */ |
| 3173 | data = standard_opcodes + linfo.li_opcode_base - 1; |
| 3174 | if (*data != 0) |
| 3175 | { |
| 3176 | unsigned char *ptr_directory_table = data; |
| 3177 | |
| 3178 | while (*data != 0) |
| 3179 | { |
| 3180 | data += strnlen ((char *) data, end - data) + 1; |
| 3181 | n_directories++; |
| 3182 | } |
| 3183 | |
| 3184 | /* Go through the directory table again to save the directories. */ |
| 3185 | directory_table = (unsigned char **) |
| 3186 | xmalloc (n_directories * sizeof (unsigned char *)); |
| 3187 | |
| 3188 | i = 0; |
| 3189 | while (*ptr_directory_table != 0) |
| 3190 | { |
| 3191 | directory_table[i] = ptr_directory_table; |
| 3192 | ptr_directory_table += strnlen ((char *) ptr_directory_table, |
| 3193 | ptr_directory_table - end) + 1; |
| 3194 | i++; |
| 3195 | } |
| 3196 | } |
| 3197 | /* Skip the NUL at the end of the table. */ |
| 3198 | data++; |
| 3199 | |
| 3200 | /* Traverse the File Name table just to count the entries. */ |
| 3201 | if (*data != 0) |
| 3202 | { |
| 3203 | unsigned char *ptr_file_name_table = data; |
| 3204 | |
| 3205 | while (*data != 0) |
| 3206 | { |
| 3207 | unsigned int bytes_read; |
| 3208 | |
| 3209 | /* Skip Name, directory index, last modification time and length |
| 3210 | of file. */ |
| 3211 | data += strnlen ((char *) data, end - data) + 1; |
| 3212 | read_uleb128 (data, & bytes_read, end); |
| 3213 | data += bytes_read; |
| 3214 | read_uleb128 (data, & bytes_read, end); |
| 3215 | data += bytes_read; |
| 3216 | read_uleb128 (data, & bytes_read, end); |
| 3217 | data += bytes_read; |
| 3218 | |
| 3219 | n_files++; |
| 3220 | } |
| 3221 | |
| 3222 | /* Go through the file table again to save the strings. */ |
| 3223 | file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry)); |
| 3224 | |
| 3225 | i = 0; |
| 3226 | while (*ptr_file_name_table != 0) |
| 3227 | { |
| 3228 | unsigned int bytes_read; |
| 3229 | |
| 3230 | file_table[i].name = ptr_file_name_table; |
| 3231 | ptr_file_name_table += strnlen ((char *) ptr_file_name_table, |
| 3232 | end - ptr_file_name_table) + 1; |
| 3233 | |
| 3234 | /* We are not interested in directory, time or size. */ |
| 3235 | file_table[i].directory_index = read_uleb128 (ptr_file_name_table, |
| 3236 | & bytes_read, end); |
| 3237 | ptr_file_name_table += bytes_read; |
| 3238 | file_table[i].modification_date = read_uleb128 (ptr_file_name_table, |
| 3239 | & bytes_read, end); |
| 3240 | ptr_file_name_table += bytes_read; |
| 3241 | file_table[i].length = read_uleb128 (ptr_file_name_table, & bytes_read, end); |
| 3242 | ptr_file_name_table += bytes_read; |
| 3243 | i++; |
| 3244 | } |
| 3245 | i = 0; |
| 3246 | |
| 3247 | /* Print the Compilation Unit's name and a header. */ |
| 3248 | if (directory_table == NULL) |
| 3249 | { |
| 3250 | printf (_("CU: %s:\n"), file_table[0].name); |
| 3251 | printf (_("File name Line number Starting address\n")); |
| 3252 | } |
| 3253 | else |
| 3254 | { |
| 3255 | unsigned int ix = file_table[0].directory_index; |
| 3256 | const char *directory = ix ? (char *)directory_table[ix - 1] : "."; |
| 3257 | |
| 3258 | if (do_wide || strlen (directory) < 76) |
| 3259 | printf (_("CU: %s/%s:\n"), directory, file_table[0].name); |
| 3260 | else |
| 3261 | printf ("%s:\n", file_table[0].name); |
| 3262 | |
| 3263 | printf (_("File name Line number Starting address\n")); |
| 3264 | } |
| 3265 | } |
| 3266 | |
| 3267 | /* Skip the NUL at the end of the table. */ |
| 3268 | data++; |
| 3269 | |
| 3270 | saved_linfo = linfo; |
| 3271 | } |
| 3272 | |
| 3273 | /* This loop iterates through the Dwarf Line Number Program. */ |
| 3274 | while (data < end_of_sequence) |
| 3275 | { |
| 3276 | unsigned char op_code; |
| 3277 | int adv; |
| 3278 | unsigned long int uladv; |
| 3279 | unsigned int bytes_read; |
| 3280 | int is_special_opcode = 0; |
| 3281 | |
| 3282 | op_code = *data++; |
| 3283 | |
| 3284 | if (op_code >= linfo.li_opcode_base) |
| 3285 | { |
| 3286 | op_code -= linfo.li_opcode_base; |
| 3287 | uladv = (op_code / linfo.li_line_range); |
| 3288 | if (linfo.li_max_ops_per_insn == 1) |
| 3289 | { |
| 3290 | uladv *= linfo.li_min_insn_length; |
| 3291 | state_machine_regs.address += uladv; |
| 3292 | } |
| 3293 | else |
| 3294 | { |
| 3295 | state_machine_regs.address |
| 3296 | += ((state_machine_regs.op_index + uladv) |
| 3297 | / linfo.li_max_ops_per_insn) |
| 3298 | * linfo.li_min_insn_length; |
| 3299 | state_machine_regs.op_index |
| 3300 | = (state_machine_regs.op_index + uladv) |
| 3301 | % linfo.li_max_ops_per_insn; |
| 3302 | } |
| 3303 | |
| 3304 | adv = (op_code % linfo.li_line_range) + linfo.li_line_base; |
| 3305 | state_machine_regs.line += adv; |
| 3306 | is_special_opcode = 1; |
| 3307 | } |
| 3308 | else switch (op_code) |
| 3309 | { |
| 3310 | case DW_LNS_extended_op: |
| 3311 | { |
| 3312 | unsigned int ext_op_code_len; |
| 3313 | unsigned char ext_op_code; |
| 3314 | unsigned char *op_code_data = data; |
| 3315 | |
| 3316 | ext_op_code_len = read_uleb128 (op_code_data, &bytes_read, |
| 3317 | end_of_sequence); |
| 3318 | op_code_data += bytes_read; |
| 3319 | |
| 3320 | if (ext_op_code_len == 0) |
| 3321 | { |
| 3322 | warn (_("Badly formed extended line op encountered!\n")); |
| 3323 | break; |
| 3324 | } |
| 3325 | ext_op_code_len += bytes_read; |
| 3326 | ext_op_code = *op_code_data++; |
| 3327 | |
| 3328 | switch (ext_op_code) |
| 3329 | { |
| 3330 | case DW_LNE_end_sequence: |
| 3331 | reset_state_machine (linfo.li_default_is_stmt); |
| 3332 | break; |
| 3333 | case DW_LNE_set_address: |
| 3334 | SAFE_BYTE_GET_AND_INC (state_machine_regs.address, |
| 3335 | op_code_data, |
| 3336 | ext_op_code_len - bytes_read - 1, |
| 3337 | end); |
| 3338 | state_machine_regs.op_index = 0; |
| 3339 | break; |
| 3340 | case DW_LNE_define_file: |
| 3341 | { |
| 3342 | file_table = (File_Entry *) xrealloc |
| 3343 | (file_table, (n_files + 1) * sizeof (File_Entry)); |
| 3344 | |
| 3345 | ++state_machine_regs.last_file_entry; |
| 3346 | /* Source file name. */ |
| 3347 | file_table[n_files].name = op_code_data; |
| 3348 | op_code_data += strlen ((char *) op_code_data) + 1; |
| 3349 | /* Directory index. */ |
| 3350 | file_table[n_files].directory_index = |
| 3351 | read_uleb128 (op_code_data, & bytes_read, |
| 3352 | end_of_sequence); |
| 3353 | op_code_data += bytes_read; |
| 3354 | /* Last modification time. */ |
| 3355 | file_table[n_files].modification_date = |
| 3356 | read_uleb128 (op_code_data, & bytes_read, |
| 3357 | end_of_sequence); |
| 3358 | op_code_data += bytes_read; |
| 3359 | /* File length. */ |
| 3360 | file_table[n_files].length = |
| 3361 | read_uleb128 (op_code_data, & bytes_read, |
| 3362 | end_of_sequence); |
| 3363 | |
| 3364 | n_files++; |
| 3365 | break; |
| 3366 | } |
| 3367 | case DW_LNE_set_discriminator: |
| 3368 | case DW_LNE_HP_set_sequence: |
| 3369 | /* Simply ignored. */ |
| 3370 | break; |
| 3371 | |
| 3372 | default: |
| 3373 | printf (_("UNKNOWN (%u): length %d\n"), |
| 3374 | ext_op_code, ext_op_code_len - bytes_read); |
| 3375 | break; |
| 3376 | } |
| 3377 | data += ext_op_code_len; |
| 3378 | break; |
| 3379 | } |
| 3380 | case DW_LNS_copy: |
| 3381 | break; |
| 3382 | |
| 3383 | case DW_LNS_advance_pc: |
| 3384 | uladv = read_uleb128 (data, & bytes_read, end); |
| 3385 | data += bytes_read; |
| 3386 | if (linfo.li_max_ops_per_insn == 1) |
| 3387 | { |
| 3388 | uladv *= linfo.li_min_insn_length; |
| 3389 | state_machine_regs.address += uladv; |
| 3390 | } |
| 3391 | else |
| 3392 | { |
| 3393 | state_machine_regs.address |
| 3394 | += ((state_machine_regs.op_index + uladv) |
| 3395 | / linfo.li_max_ops_per_insn) |
| 3396 | * linfo.li_min_insn_length; |
| 3397 | state_machine_regs.op_index |
| 3398 | = (state_machine_regs.op_index + uladv) |
| 3399 | % linfo.li_max_ops_per_insn; |
| 3400 | } |
| 3401 | break; |
| 3402 | |
| 3403 | case DW_LNS_advance_line: |
| 3404 | adv = read_sleb128 (data, & bytes_read, end); |
| 3405 | data += bytes_read; |
| 3406 | state_machine_regs.line += adv; |
| 3407 | break; |
| 3408 | |
| 3409 | case DW_LNS_set_file: |
| 3410 | adv = read_uleb128 (data, & bytes_read, end); |
| 3411 | data += bytes_read; |
| 3412 | state_machine_regs.file = adv; |
| 3413 | |
| 3414 | if (file_table == NULL) |
| 3415 | printf (_("\n [Use file table entry %d]\n"), state_machine_regs.file - 1); |
| 3416 | else if (file_table[state_machine_regs.file - 1].directory_index == 0) |
| 3417 | /* If directory index is 0, that means current directory. */ |
| 3418 | printf ("\n./%s:[++]\n", |
| 3419 | file_table[state_machine_regs.file - 1].name); |
| 3420 | else if (directory_table == NULL) |
| 3421 | printf (_("\n [Use directory table entry %d]\n"), |
| 3422 | file_table[state_machine_regs.file - 1].directory_index - 1); |
| 3423 | else |
| 3424 | /* The directory index starts counting at 1. */ |
| 3425 | printf ("\n%s/%s:\n", |
| 3426 | directory_table[file_table[state_machine_regs.file - 1].directory_index - 1], |
| 3427 | file_table[state_machine_regs.file - 1].name); |
| 3428 | break; |
| 3429 | |
| 3430 | case DW_LNS_set_column: |
| 3431 | uladv = read_uleb128 (data, & bytes_read, end); |
| 3432 | data += bytes_read; |
| 3433 | state_machine_regs.column = uladv; |
| 3434 | break; |
| 3435 | |
| 3436 | case DW_LNS_negate_stmt: |
| 3437 | adv = state_machine_regs.is_stmt; |
| 3438 | adv = ! adv; |
| 3439 | state_machine_regs.is_stmt = adv; |
| 3440 | break; |
| 3441 | |
| 3442 | case DW_LNS_set_basic_block: |
| 3443 | state_machine_regs.basic_block = 1; |
| 3444 | break; |
| 3445 | |
| 3446 | case DW_LNS_const_add_pc: |
| 3447 | uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); |
| 3448 | if (linfo.li_max_ops_per_insn == 1) |
| 3449 | { |
| 3450 | uladv *= linfo.li_min_insn_length; |
| 3451 | state_machine_regs.address += uladv; |
| 3452 | } |
| 3453 | else |
| 3454 | { |
| 3455 | state_machine_regs.address |
| 3456 | += ((state_machine_regs.op_index + uladv) |
| 3457 | / linfo.li_max_ops_per_insn) |
| 3458 | * linfo.li_min_insn_length; |
| 3459 | state_machine_regs.op_index |
| 3460 | = (state_machine_regs.op_index + uladv) |
| 3461 | % linfo.li_max_ops_per_insn; |
| 3462 | } |
| 3463 | break; |
| 3464 | |
| 3465 | case DW_LNS_fixed_advance_pc: |
| 3466 | SAFE_BYTE_GET_AND_INC (uladv, data, 2, end); |
| 3467 | state_machine_regs.address += uladv; |
| 3468 | state_machine_regs.op_index = 0; |
| 3469 | break; |
| 3470 | |
| 3471 | case DW_LNS_set_prologue_end: |
| 3472 | break; |
| 3473 | |
| 3474 | case DW_LNS_set_epilogue_begin: |
| 3475 | break; |
| 3476 | |
| 3477 | case DW_LNS_set_isa: |
| 3478 | uladv = read_uleb128 (data, & bytes_read, end); |
| 3479 | data += bytes_read; |
| 3480 | printf (_(" Set ISA to %lu\n"), uladv); |
| 3481 | break; |
| 3482 | |
| 3483 | default: |
| 3484 | printf (_(" Unknown opcode %d with operands: "), op_code); |
| 3485 | |
| 3486 | if (standard_opcodes != NULL) |
| 3487 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) |
| 3488 | { |
| 3489 | printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data, |
| 3490 | &bytes_read, end)), |
| 3491 | i == 1 ? "" : ", "); |
| 3492 | data += bytes_read; |
| 3493 | } |
| 3494 | putchar ('\n'); |
| 3495 | break; |
| 3496 | } |
| 3497 | |
| 3498 | /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row |
| 3499 | to the DWARF address/line matrix. */ |
| 3500 | if ((is_special_opcode) || (op_code == DW_LNE_end_sequence) |
| 3501 | || (op_code == DW_LNS_copy)) |
| 3502 | { |
| 3503 | const unsigned int MAX_FILENAME_LENGTH = 35; |
| 3504 | char *fileName; |
| 3505 | char *newFileName = NULL; |
| 3506 | size_t fileNameLength; |
| 3507 | |
| 3508 | if (file_table) |
| 3509 | fileName = (char *) file_table[state_machine_regs.file - 1].name; |
| 3510 | else |
| 3511 | fileName = "<unknown>"; |
| 3512 | |
| 3513 | fileNameLength = strlen (fileName); |
| 3514 | |
| 3515 | if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide)) |
| 3516 | { |
| 3517 | newFileName = (char *) xmalloc (MAX_FILENAME_LENGTH + 1); |
| 3518 | /* Truncate file name */ |
| 3519 | strncpy (newFileName, |
| 3520 | fileName + fileNameLength - MAX_FILENAME_LENGTH, |
| 3521 | MAX_FILENAME_LENGTH + 1); |
| 3522 | } |
| 3523 | else |
| 3524 | { |
| 3525 | newFileName = (char *) xmalloc (fileNameLength + 1); |
| 3526 | strncpy (newFileName, fileName, fileNameLength + 1); |
| 3527 | } |
| 3528 | |
| 3529 | if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH)) |
| 3530 | { |
| 3531 | if (linfo.li_max_ops_per_insn == 1) |
| 3532 | printf ("%-35s %11d %#18" DWARF_VMA_FMT "x\n", |
| 3533 | newFileName, state_machine_regs.line, |
| 3534 | state_machine_regs.address); |
| 3535 | else |
| 3536 | printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]\n", |
| 3537 | newFileName, state_machine_regs.line, |
| 3538 | state_machine_regs.address, |
| 3539 | state_machine_regs.op_index); |
| 3540 | } |
| 3541 | else |
| 3542 | { |
| 3543 | if (linfo.li_max_ops_per_insn == 1) |
| 3544 | printf ("%s %11d %#18" DWARF_VMA_FMT "x\n", |
| 3545 | newFileName, state_machine_regs.line, |
| 3546 | state_machine_regs.address); |
| 3547 | else |
| 3548 | printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]\n", |
| 3549 | newFileName, state_machine_regs.line, |
| 3550 | state_machine_regs.address, |
| 3551 | state_machine_regs.op_index); |
| 3552 | } |
| 3553 | |
| 3554 | if (op_code == DW_LNE_end_sequence) |
| 3555 | printf ("\n"); |
| 3556 | |
| 3557 | free (newFileName); |
| 3558 | } |
| 3559 | } |
| 3560 | |
| 3561 | if (file_table) |
| 3562 | { |
| 3563 | free (file_table); |
| 3564 | file_table = NULL; |
| 3565 | n_files = 0; |
| 3566 | } |
| 3567 | |
| 3568 | if (directory_table) |
| 3569 | { |
| 3570 | free (directory_table); |
| 3571 | directory_table = NULL; |
| 3572 | n_directories = 0; |
| 3573 | } |
| 3574 | |
| 3575 | putchar ('\n'); |
| 3576 | } |
| 3577 | |
| 3578 | return 1; |
| 3579 | } |
| 3580 | |
| 3581 | static int |
| 3582 | display_debug_lines (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) |
| 3583 | { |
| 3584 | unsigned char *data = section->start; |
| 3585 | unsigned char *end = data + section->size; |
| 3586 | int retValRaw = 1; |
| 3587 | int retValDecoded = 1; |
| 3588 | |
| 3589 | if (do_debug_lines == 0) |
| 3590 | do_debug_lines |= FLAG_DEBUG_LINES_RAW; |
| 3591 | |
| 3592 | if (do_debug_lines & FLAG_DEBUG_LINES_RAW) |
| 3593 | retValRaw = display_debug_lines_raw (section, data, end); |
| 3594 | |
| 3595 | if (do_debug_lines & FLAG_DEBUG_LINES_DECODED) |
| 3596 | retValDecoded = display_debug_lines_decoded (section, data, end); |
| 3597 | |
| 3598 | if (!retValRaw || !retValDecoded) |
| 3599 | return 0; |
| 3600 | |
| 3601 | return 1; |
| 3602 | } |
| 3603 | |
| 3604 | static debug_info * |
| 3605 | find_debug_info_for_offset (unsigned long offset) |
| 3606 | { |
| 3607 | unsigned int i; |
| 3608 | |
| 3609 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
| 3610 | return NULL; |
| 3611 | |
| 3612 | for (i = 0; i < num_debug_info_entries; i++) |
| 3613 | if (debug_information[i].cu_offset == offset) |
| 3614 | return debug_information + i; |
| 3615 | |
| 3616 | return NULL; |
| 3617 | } |
| 3618 | |
| 3619 | static const char * |
| 3620 | get_gdb_index_symbol_kind_name (gdb_index_symbol_kind kind) |
| 3621 | { |
| 3622 | /* See gdb/gdb-index.h. */ |
| 3623 | static const char * const kinds[] = |
| 3624 | { |
| 3625 | N_ ("no info"), |
| 3626 | N_ ("type"), |
| 3627 | N_ ("variable"), |
| 3628 | N_ ("function"), |
| 3629 | N_ ("other"), |
| 3630 | N_ ("unused5"), |
| 3631 | N_ ("unused6"), |
| 3632 | N_ ("unused7") |
| 3633 | }; |
| 3634 | |
| 3635 | return _ (kinds[kind]); |
| 3636 | } |
| 3637 | |
| 3638 | static int |
| 3639 | display_debug_pubnames_worker (struct dwarf_section *section, |
| 3640 | void *file ATTRIBUTE_UNUSED, |
| 3641 | int is_gnu) |
| 3642 | { |
| 3643 | DWARF2_Internal_PubNames names; |
| 3644 | unsigned char *start = section->start; |
| 3645 | unsigned char *end = start + section->size; |
| 3646 | |
| 3647 | /* It does not matter if this load fails, |
| 3648 | we test for that later on. */ |
| 3649 | load_debug_info (file); |
| 3650 | |
| 3651 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3652 | |
| 3653 | while (start < end) |
| 3654 | { |
| 3655 | unsigned char *data; |
| 3656 | unsigned long offset; |
| 3657 | unsigned int offset_size, initial_length_size; |
| 3658 | |
| 3659 | data = start; |
| 3660 | |
| 3661 | SAFE_BYTE_GET_AND_INC (names.pn_length, data, 4, end); |
| 3662 | if (names.pn_length == 0xffffffff) |
| 3663 | { |
| 3664 | SAFE_BYTE_GET_AND_INC (names.pn_length, data, 8, end); |
| 3665 | offset_size = 8; |
| 3666 | initial_length_size = 12; |
| 3667 | } |
| 3668 | else |
| 3669 | { |
| 3670 | offset_size = 4; |
| 3671 | initial_length_size = 4; |
| 3672 | } |
| 3673 | |
| 3674 | SAFE_BYTE_GET_AND_INC (names.pn_version, data, 2, end); |
| 3675 | SAFE_BYTE_GET_AND_INC (names.pn_offset, data, offset_size, end); |
| 3676 | |
| 3677 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
| 3678 | && num_debug_info_entries > 0 |
| 3679 | && find_debug_info_for_offset (names.pn_offset) == NULL) |
| 3680 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), |
| 3681 | (unsigned long) names.pn_offset, section->name); |
| 3682 | |
| 3683 | SAFE_BYTE_GET_AND_INC (names.pn_size, data, offset_size, end); |
| 3684 | |
| 3685 | start += names.pn_length + initial_length_size; |
| 3686 | |
| 3687 | if (names.pn_version != 2 && names.pn_version != 3) |
| 3688 | { |
| 3689 | static int warned = 0; |
| 3690 | |
| 3691 | if (! warned) |
| 3692 | { |
| 3693 | warn (_("Only DWARF 2 and 3 pubnames are currently supported\n")); |
| 3694 | warned = 1; |
| 3695 | } |
| 3696 | |
| 3697 | continue; |
| 3698 | } |
| 3699 | |
| 3700 | printf (_(" Length: %ld\n"), |
| 3701 | (long) names.pn_length); |
| 3702 | printf (_(" Version: %d\n"), |
| 3703 | names.pn_version); |
| 3704 | printf (_(" Offset into .debug_info section: 0x%lx\n"), |
| 3705 | (unsigned long) names.pn_offset); |
| 3706 | printf (_(" Size of area in .debug_info section: %ld\n"), |
| 3707 | (long) names.pn_size); |
| 3708 | |
| 3709 | if (is_gnu) |
| 3710 | printf (_("\n Offset Kind Name\n")); |
| 3711 | else |
| 3712 | printf (_("\n Offset\tName\n")); |
| 3713 | |
| 3714 | do |
| 3715 | { |
| 3716 | bfd_size_type maxprint; |
| 3717 | |
| 3718 | SAFE_BYTE_GET (offset, data, offset_size, end); |
| 3719 | |
| 3720 | if (offset != 0) |
| 3721 | { |
| 3722 | data += offset_size; |
| 3723 | if (data >= end) |
| 3724 | break; |
| 3725 | maxprint = (end - data) - 1; |
| 3726 | |
| 3727 | if (is_gnu) |
| 3728 | { |
| 3729 | unsigned int kind_data; |
| 3730 | gdb_index_symbol_kind kind; |
| 3731 | const char *kind_name; |
| 3732 | int is_static; |
| 3733 | |
| 3734 | SAFE_BYTE_GET (kind_data, data, 1, end); |
| 3735 | data++; |
| 3736 | maxprint --; |
| 3737 | /* GCC computes the kind as the upper byte in the CU index |
| 3738 | word, and then right shifts it by the CU index size. |
| 3739 | Left shift KIND to where the gdb-index.h accessor macros |
| 3740 | can use it. */ |
| 3741 | kind_data <<= GDB_INDEX_CU_BITSIZE; |
| 3742 | kind = GDB_INDEX_SYMBOL_KIND_VALUE (kind_data); |
| 3743 | kind_name = get_gdb_index_symbol_kind_name (kind); |
| 3744 | is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (kind_data); |
| 3745 | printf (" %-6lx %s,%-10s %.*s\n", |
| 3746 | offset, is_static ? _("s") : _("g"), |
| 3747 | kind_name, (int) maxprint, data); |
| 3748 | } |
| 3749 | else |
| 3750 | printf (" %-6lx\t%.*s\n", offset, (int) maxprint, data); |
| 3751 | |
| 3752 | data += strnlen ((char *) data, maxprint) + 1; |
| 3753 | if (data >= end) |
| 3754 | break; |
| 3755 | } |
| 3756 | } |
| 3757 | while (offset != 0); |
| 3758 | } |
| 3759 | |
| 3760 | printf ("\n"); |
| 3761 | return 1; |
| 3762 | } |
| 3763 | |
| 3764 | static int |
| 3765 | display_debug_pubnames (struct dwarf_section *section, void *file) |
| 3766 | { |
| 3767 | return display_debug_pubnames_worker (section, file, 0); |
| 3768 | } |
| 3769 | |
| 3770 | static int |
| 3771 | display_debug_gnu_pubnames (struct dwarf_section *section, void *file) |
| 3772 | { |
| 3773 | return display_debug_pubnames_worker (section, file, 1); |
| 3774 | } |
| 3775 | |
| 3776 | static int |
| 3777 | display_debug_macinfo (struct dwarf_section *section, |
| 3778 | void *file ATTRIBUTE_UNUSED) |
| 3779 | { |
| 3780 | unsigned char *start = section->start; |
| 3781 | unsigned char *end = start + section->size; |
| 3782 | unsigned char *curr = start; |
| 3783 | unsigned int bytes_read; |
| 3784 | enum dwarf_macinfo_record_type op; |
| 3785 | |
| 3786 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3787 | |
| 3788 | while (curr < end) |
| 3789 | { |
| 3790 | unsigned int lineno; |
| 3791 | const unsigned char *string; |
| 3792 | |
| 3793 | op = (enum dwarf_macinfo_record_type) *curr; |
| 3794 | curr++; |
| 3795 | |
| 3796 | switch (op) |
| 3797 | { |
| 3798 | case DW_MACINFO_start_file: |
| 3799 | { |
| 3800 | unsigned int filenum; |
| 3801 | |
| 3802 | lineno = read_uleb128 (curr, & bytes_read, end); |
| 3803 | curr += bytes_read; |
| 3804 | filenum = read_uleb128 (curr, & bytes_read, end); |
| 3805 | curr += bytes_read; |
| 3806 | |
| 3807 | printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"), |
| 3808 | lineno, filenum); |
| 3809 | } |
| 3810 | break; |
| 3811 | |
| 3812 | case DW_MACINFO_end_file: |
| 3813 | printf (_(" DW_MACINFO_end_file\n")); |
| 3814 | break; |
| 3815 | |
| 3816 | case DW_MACINFO_define: |
| 3817 | lineno = read_uleb128 (curr, & bytes_read, end); |
| 3818 | curr += bytes_read; |
| 3819 | string = curr; |
| 3820 | curr += strnlen ((char *) string, end - string) + 1; |
| 3821 | printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"), |
| 3822 | lineno, string); |
| 3823 | break; |
| 3824 | |
| 3825 | case DW_MACINFO_undef: |
| 3826 | lineno = read_uleb128 (curr, & bytes_read, end); |
| 3827 | curr += bytes_read; |
| 3828 | string = curr; |
| 3829 | curr += strnlen ((char *) string, end - string) + 1; |
| 3830 | printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), |
| 3831 | lineno, string); |
| 3832 | break; |
| 3833 | |
| 3834 | case DW_MACINFO_vendor_ext: |
| 3835 | { |
| 3836 | unsigned int constant; |
| 3837 | |
| 3838 | constant = read_uleb128 (curr, & bytes_read, end); |
| 3839 | curr += bytes_read; |
| 3840 | string = curr; |
| 3841 | curr += strnlen ((char *) string, end - string) + 1; |
| 3842 | printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), |
| 3843 | constant, string); |
| 3844 | } |
| 3845 | break; |
| 3846 | } |
| 3847 | } |
| 3848 | |
| 3849 | return 1; |
| 3850 | } |
| 3851 | |
| 3852 | /* Given LINE_OFFSET into the .debug_line section, attempt to return |
| 3853 | filename and dirname corresponding to file name table entry with index |
| 3854 | FILEIDX. Return NULL on failure. */ |
| 3855 | |
| 3856 | static unsigned char * |
| 3857 | get_line_filename_and_dirname (dwarf_vma line_offset, |
| 3858 | dwarf_vma fileidx, |
| 3859 | unsigned char **dir_name) |
| 3860 | { |
| 3861 | struct dwarf_section *section = &debug_displays [line].section; |
| 3862 | unsigned char *hdrptr, *dirtable, *file_name; |
| 3863 | unsigned int offset_size, initial_length_size; |
| 3864 | unsigned int version, opcode_base, bytes_read; |
| 3865 | dwarf_vma length, diridx; |
| 3866 | const unsigned char * end; |
| 3867 | |
| 3868 | *dir_name = NULL; |
| 3869 | if (section->start == NULL |
| 3870 | || line_offset >= section->size |
| 3871 | || fileidx == 0) |
| 3872 | return NULL; |
| 3873 | |
| 3874 | hdrptr = section->start + line_offset; |
| 3875 | end = section->start + section->size; |
| 3876 | |
| 3877 | SAFE_BYTE_GET_AND_INC (length, hdrptr, 4, end); |
| 3878 | if (length == 0xffffffff) |
| 3879 | { |
| 3880 | /* This section is 64-bit DWARF 3. */ |
| 3881 | SAFE_BYTE_GET_AND_INC (length, hdrptr, 8, end); |
| 3882 | offset_size = 8; |
| 3883 | initial_length_size = 12; |
| 3884 | } |
| 3885 | else |
| 3886 | { |
| 3887 | offset_size = 4; |
| 3888 | initial_length_size = 4; |
| 3889 | } |
| 3890 | if (length + initial_length_size > section->size) |
| 3891 | return NULL; |
| 3892 | |
| 3893 | SAFE_BYTE_GET_AND_INC (version, hdrptr, 2, end); |
| 3894 | if (version != 2 && version != 3 && version != 4) |
| 3895 | return NULL; |
| 3896 | hdrptr += offset_size + 1;/* Skip prologue_length and min_insn_length. */ |
| 3897 | if (version >= 4) |
| 3898 | hdrptr++; /* Skip max_ops_per_insn. */ |
| 3899 | hdrptr += 3; /* Skip default_is_stmt, line_base, line_range. */ |
| 3900 | |
| 3901 | SAFE_BYTE_GET_AND_INC (opcode_base, hdrptr, 1, end); |
| 3902 | if (opcode_base == 0) |
| 3903 | return NULL; |
| 3904 | |
| 3905 | hdrptr += opcode_base - 1; |
| 3906 | dirtable = hdrptr; |
| 3907 | /* Skip over dirname table. */ |
| 3908 | while (*hdrptr != '\0') |
| 3909 | hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; |
| 3910 | hdrptr++; /* Skip the NUL at the end of the table. */ |
| 3911 | /* Now skip over preceding filename table entries. */ |
| 3912 | for (; *hdrptr != '\0' && fileidx > 1; fileidx--) |
| 3913 | { |
| 3914 | hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; |
| 3915 | read_uleb128 (hdrptr, &bytes_read, end); |
| 3916 | hdrptr += bytes_read; |
| 3917 | read_uleb128 (hdrptr, &bytes_read, end); |
| 3918 | hdrptr += bytes_read; |
| 3919 | read_uleb128 (hdrptr, &bytes_read, end); |
| 3920 | hdrptr += bytes_read; |
| 3921 | } |
| 3922 | if (hdrptr == end || *hdrptr == '\0') |
| 3923 | return NULL; |
| 3924 | file_name = hdrptr; |
| 3925 | hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; |
| 3926 | diridx = read_uleb128 (hdrptr, &bytes_read, end); |
| 3927 | if (diridx == 0) |
| 3928 | return file_name; |
| 3929 | for (; *dirtable != '\0' && diridx > 1; diridx--) |
| 3930 | dirtable += strnlen ((char *) dirtable, end - dirtable) + 1; |
| 3931 | if (*dirtable == '\0') |
| 3932 | return NULL; |
| 3933 | *dir_name = dirtable; |
| 3934 | return file_name; |
| 3935 | } |
| 3936 | |
| 3937 | static int |
| 3938 | display_debug_macro (struct dwarf_section *section, |
| 3939 | void *file) |
| 3940 | { |
| 3941 | unsigned char *start = section->start; |
| 3942 | unsigned char *end = start + section->size; |
| 3943 | unsigned char *curr = start; |
| 3944 | unsigned char *extended_op_buf[256]; |
| 3945 | unsigned int bytes_read; |
| 3946 | |
| 3947 | load_debug_section (str, file); |
| 3948 | load_debug_section (line, file); |
| 3949 | |
| 3950 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3951 | |
| 3952 | while (curr < end) |
| 3953 | { |
| 3954 | unsigned int lineno, version, flags; |
| 3955 | unsigned int offset_size = 4; |
| 3956 | const unsigned char *string; |
| 3957 | dwarf_vma line_offset = 0, sec_offset = curr - start, offset; |
| 3958 | unsigned char **extended_ops = NULL; |
| 3959 | |
| 3960 | SAFE_BYTE_GET_AND_INC (version, curr, 2, end); |
| 3961 | if (version != 4) |
| 3962 | { |
| 3963 | error (_("Only GNU extension to DWARF 4 of %s is currently supported.\n"), |
| 3964 | section->name); |
| 3965 | return 0; |
| 3966 | } |
| 3967 | |
| 3968 | SAFE_BYTE_GET_AND_INC (flags, curr, 1, end); |
| 3969 | if (flags & 1) |
| 3970 | offset_size = 8; |
| 3971 | printf (_(" Offset: 0x%lx\n"), |
| 3972 | (unsigned long) sec_offset); |
| 3973 | printf (_(" Version: %d\n"), version); |
| 3974 | printf (_(" Offset size: %d\n"), offset_size); |
| 3975 | if (flags & 2) |
| 3976 | { |
| 3977 | SAFE_BYTE_GET_AND_INC (line_offset, curr, offset_size, end); |
| 3978 | printf (_(" Offset into .debug_line: 0x%lx\n"), |
| 3979 | (unsigned long) line_offset); |
| 3980 | } |
| 3981 | if (flags & 4) |
| 3982 | { |
| 3983 | unsigned int i, count, op; |
| 3984 | dwarf_vma nargs, n; |
| 3985 | |
| 3986 | SAFE_BYTE_GET_AND_INC (count, curr, 1, end); |
| 3987 | |
| 3988 | memset (extended_op_buf, 0, sizeof (extended_op_buf)); |
| 3989 | extended_ops = extended_op_buf; |
| 3990 | if (count) |
| 3991 | { |
| 3992 | printf (_(" Extension opcode arguments:\n")); |
| 3993 | for (i = 0; i < count; i++) |
| 3994 | { |
| 3995 | SAFE_BYTE_GET_AND_INC (op, curr, 1, end); |
| 3996 | extended_ops[op] = curr; |
| 3997 | nargs = read_uleb128 (curr, &bytes_read, end); |
| 3998 | curr += bytes_read; |
| 3999 | if (nargs == 0) |
| 4000 | printf (_(" DW_MACRO_GNU_%02x has no arguments\n"), op); |
| 4001 | else |
| 4002 | { |
| 4003 | printf (_(" DW_MACRO_GNU_%02x arguments: "), op); |
| 4004 | for (n = 0; n < nargs; n++) |
| 4005 | { |
| 4006 | unsigned int form; |
| 4007 | |
| 4008 | SAFE_BYTE_GET_AND_INC (form, curr, 1, end); |
| 4009 | printf ("%s%s", get_FORM_name (form), |
| 4010 | n == nargs - 1 ? "\n" : ", "); |
| 4011 | switch (form) |
| 4012 | { |
| 4013 | case DW_FORM_data1: |
| 4014 | case DW_FORM_data2: |
| 4015 | case DW_FORM_data4: |
| 4016 | case DW_FORM_data8: |
| 4017 | case DW_FORM_sdata: |
| 4018 | case DW_FORM_udata: |
| 4019 | case DW_FORM_block: |
| 4020 | case DW_FORM_block1: |
| 4021 | case DW_FORM_block2: |
| 4022 | case DW_FORM_block4: |
| 4023 | case DW_FORM_flag: |
| 4024 | case DW_FORM_string: |
| 4025 | case DW_FORM_strp: |
| 4026 | case DW_FORM_sec_offset: |
| 4027 | break; |
| 4028 | default: |
| 4029 | error (_("Invalid extension opcode form %s\n"), |
| 4030 | get_FORM_name (form)); |
| 4031 | return 0; |
| 4032 | } |
| 4033 | } |
| 4034 | } |
| 4035 | } |
| 4036 | } |
| 4037 | } |
| 4038 | printf ("\n"); |
| 4039 | |
| 4040 | while (1) |
| 4041 | { |
| 4042 | unsigned int op; |
| 4043 | |
| 4044 | if (curr >= end) |
| 4045 | { |
| 4046 | error (_(".debug_macro section not zero terminated\n")); |
| 4047 | return 0; |
| 4048 | } |
| 4049 | |
| 4050 | SAFE_BYTE_GET_AND_INC (op, curr, 1, end); |
| 4051 | if (op == 0) |
| 4052 | break; |
| 4053 | |
| 4054 | switch (op) |
| 4055 | { |
| 4056 | case DW_MACRO_GNU_start_file: |
| 4057 | { |
| 4058 | unsigned int filenum; |
| 4059 | unsigned char *file_name = NULL, *dir_name = NULL; |
| 4060 | |
| 4061 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4062 | curr += bytes_read; |
| 4063 | filenum = read_uleb128 (curr, &bytes_read, end); |
| 4064 | curr += bytes_read; |
| 4065 | |
| 4066 | if ((flags & 2) == 0) |
| 4067 | error (_("DW_MACRO_GNU_start_file used, but no .debug_line offset provided.\n")); |
| 4068 | else |
| 4069 | file_name |
| 4070 | = get_line_filename_and_dirname (line_offset, filenum, |
| 4071 | &dir_name); |
| 4072 | if (file_name == NULL) |
| 4073 | printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d\n"), |
| 4074 | lineno, filenum); |
| 4075 | else |
| 4076 | printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d filename: %s%s%s\n"), |
| 4077 | lineno, filenum, |
| 4078 | dir_name != NULL ? (const char *) dir_name : "", |
| 4079 | dir_name != NULL ? "/" : "", file_name); |
| 4080 | } |
| 4081 | break; |
| 4082 | |
| 4083 | case DW_MACRO_GNU_end_file: |
| 4084 | printf (_(" DW_MACRO_GNU_end_file\n")); |
| 4085 | break; |
| 4086 | |
| 4087 | case DW_MACRO_GNU_define: |
| 4088 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4089 | curr += bytes_read; |
| 4090 | string = curr; |
| 4091 | curr += strnlen ((char *) string, end - string) + 1; |
| 4092 | printf (_(" DW_MACRO_GNU_define - lineno : %d macro : %s\n"), |
| 4093 | lineno, string); |
| 4094 | break; |
| 4095 | |
| 4096 | case DW_MACRO_GNU_undef: |
| 4097 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4098 | curr += bytes_read; |
| 4099 | string = curr; |
| 4100 | curr += strnlen ((char *) string, end - string) + 1; |
| 4101 | printf (_(" DW_MACRO_GNU_undef - lineno : %d macro : %s\n"), |
| 4102 | lineno, string); |
| 4103 | break; |
| 4104 | |
| 4105 | case DW_MACRO_GNU_define_indirect: |
| 4106 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4107 | curr += bytes_read; |
| 4108 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4109 | string = fetch_indirect_string (offset); |
| 4110 | printf (_(" DW_MACRO_GNU_define_indirect - lineno : %d macro : %s\n"), |
| 4111 | lineno, string); |
| 4112 | break; |
| 4113 | |
| 4114 | case DW_MACRO_GNU_undef_indirect: |
| 4115 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4116 | curr += bytes_read; |
| 4117 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4118 | string = fetch_indirect_string (offset); |
| 4119 | printf (_(" DW_MACRO_GNU_undef_indirect - lineno : %d macro : %s\n"), |
| 4120 | lineno, string); |
| 4121 | break; |
| 4122 | |
| 4123 | case DW_MACRO_GNU_transparent_include: |
| 4124 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4125 | printf (_(" DW_MACRO_GNU_transparent_include - offset : 0x%lx\n"), |
| 4126 | (unsigned long) offset); |
| 4127 | break; |
| 4128 | |
| 4129 | case DW_MACRO_GNU_define_indirect_alt: |
| 4130 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4131 | curr += bytes_read; |
| 4132 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4133 | printf (_(" DW_MACRO_GNU_define_indirect_alt - lineno : %d macro offset : 0x%lx\n"), |
| 4134 | lineno, (unsigned long) offset); |
| 4135 | break; |
| 4136 | |
| 4137 | case DW_MACRO_GNU_undef_indirect_alt: |
| 4138 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4139 | curr += bytes_read; |
| 4140 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4141 | printf (_(" DW_MACRO_GNU_undef_indirect_alt - lineno : %d macro offset : 0x%lx\n"), |
| 4142 | lineno, (unsigned long) offset); |
| 4143 | break; |
| 4144 | |
| 4145 | case DW_MACRO_GNU_transparent_include_alt: |
| 4146 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4147 | printf (_(" DW_MACRO_GNU_transparent_include_alt - offset : 0x%lx\n"), |
| 4148 | (unsigned long) offset); |
| 4149 | break; |
| 4150 | |
| 4151 | default: |
| 4152 | if (extended_ops == NULL || extended_ops[op] == NULL) |
| 4153 | { |
| 4154 | error (_(" Unknown macro opcode %02x seen\n"), op); |
| 4155 | return 0; |
| 4156 | } |
| 4157 | else |
| 4158 | { |
| 4159 | /* Skip over unhandled opcodes. */ |
| 4160 | dwarf_vma nargs, n; |
| 4161 | unsigned char *desc = extended_ops[op]; |
| 4162 | nargs = read_uleb128 (desc, &bytes_read, end); |
| 4163 | desc += bytes_read; |
| 4164 | if (nargs == 0) |
| 4165 | { |
| 4166 | printf (_(" DW_MACRO_GNU_%02x\n"), op); |
| 4167 | break; |
| 4168 | } |
| 4169 | printf (_(" DW_MACRO_GNU_%02x -"), op); |
| 4170 | for (n = 0; n < nargs; n++) |
| 4171 | { |
| 4172 | int val; |
| 4173 | |
| 4174 | SAFE_BYTE_GET_AND_INC (val, desc, 1, end); |
| 4175 | curr |
| 4176 | = read_and_display_attr_value (0, val, |
| 4177 | curr, end, 0, 0, offset_size, |
| 4178 | version, NULL, 0, NULL, |
| 4179 | NULL); |
| 4180 | if (n != nargs - 1) |
| 4181 | printf (","); |
| 4182 | } |
| 4183 | printf ("\n"); |
| 4184 | } |
| 4185 | break; |
| 4186 | } |
| 4187 | } |
| 4188 | |
| 4189 | printf ("\n"); |
| 4190 | } |
| 4191 | |
| 4192 | return 1; |
| 4193 | } |
| 4194 | |
| 4195 | static int |
| 4196 | display_debug_abbrev (struct dwarf_section *section, |
| 4197 | void *file ATTRIBUTE_UNUSED) |
| 4198 | { |
| 4199 | abbrev_entry *entry; |
| 4200 | unsigned char *start = section->start; |
| 4201 | unsigned char *end = start + section->size; |
| 4202 | |
| 4203 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4204 | |
| 4205 | do |
| 4206 | { |
| 4207 | unsigned char *last; |
| 4208 | |
| 4209 | free_abbrevs (); |
| 4210 | |
| 4211 | last = start; |
| 4212 | start = process_abbrev_section (start, end); |
| 4213 | |
| 4214 | if (first_abbrev == NULL) |
| 4215 | continue; |
| 4216 | |
| 4217 | printf (_(" Number TAG (0x%lx)\n"), (long) (last - section->start)); |
| 4218 | |
| 4219 | for (entry = first_abbrev; entry; entry = entry->next) |
| 4220 | { |
| 4221 | abbrev_attr *attr; |
| 4222 | |
| 4223 | printf (" %ld %s [%s]\n", |
| 4224 | entry->entry, |
| 4225 | get_TAG_name (entry->tag), |
| 4226 | entry->children ? _("has children") : _("no children")); |
| 4227 | |
| 4228 | for (attr = entry->first_attr; attr; attr = attr->next) |
| 4229 | printf (" %-18s %s\n", |
| 4230 | get_AT_name (attr->attribute), |
| 4231 | get_FORM_name (attr->form)); |
| 4232 | } |
| 4233 | } |
| 4234 | while (start); |
| 4235 | |
| 4236 | printf ("\n"); |
| 4237 | |
| 4238 | return 1; |
| 4239 | } |
| 4240 | |
| 4241 | /* Display a location list from a normal (ie, non-dwo) .debug_loc section. */ |
| 4242 | |
| 4243 | static void |
| 4244 | display_loc_list (struct dwarf_section *section, |
| 4245 | unsigned char **start_ptr, |
| 4246 | int debug_info_entry, |
| 4247 | unsigned long offset, |
| 4248 | unsigned long base_address, |
| 4249 | int has_frame_base) |
| 4250 | { |
| 4251 | unsigned char *start = *start_ptr; |
| 4252 | unsigned char *section_end = section->start + section->size; |
| 4253 | unsigned long cu_offset = debug_information [debug_info_entry].cu_offset; |
| 4254 | unsigned int pointer_size = debug_information [debug_info_entry].pointer_size; |
| 4255 | unsigned int offset_size = debug_information [debug_info_entry].offset_size; |
| 4256 | int dwarf_version = debug_information [debug_info_entry].dwarf_version; |
| 4257 | |
| 4258 | dwarf_vma begin; |
| 4259 | dwarf_vma end; |
| 4260 | unsigned short length; |
| 4261 | int need_frame_base; |
| 4262 | |
| 4263 | if (pointer_size < 2 || pointer_size > 8) |
| 4264 | { |
| 4265 | warn (_("Invalid pointer size (%d) in debug info for entry %d\n"), |
| 4266 | pointer_size, debug_info_entry); |
| 4267 | return; |
| 4268 | } |
| 4269 | |
| 4270 | while (1) |
| 4271 | { |
| 4272 | if (start + 2 * pointer_size > section_end) |
| 4273 | { |
| 4274 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4275 | offset); |
| 4276 | break; |
| 4277 | } |
| 4278 | |
| 4279 | printf (" %8.8lx ", offset + (start - *start_ptr)); |
| 4280 | |
| 4281 | /* Note: we use sign extension here in order to be sure that we can detect |
| 4282 | the -1 escape value. Sign extension into the top 32 bits of a 32-bit |
| 4283 | address will not affect the values that we display since we always show |
| 4284 | hex values, and always the bottom 32-bits. */ |
| 4285 | SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end); |
| 4286 | SAFE_BYTE_GET_AND_INC (end, start, pointer_size, section_end); |
| 4287 | |
| 4288 | if (begin == 0 && end == 0) |
| 4289 | { |
| 4290 | printf (_("<End of list>\n")); |
| 4291 | break; |
| 4292 | } |
| 4293 | |
| 4294 | /* Check base address specifiers. */ |
| 4295 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
| 4296 | { |
| 4297 | base_address = end; |
| 4298 | print_dwarf_vma (begin, pointer_size); |
| 4299 | print_dwarf_vma (end, pointer_size); |
| 4300 | printf (_("(base address)\n")); |
| 4301 | continue; |
| 4302 | } |
| 4303 | |
| 4304 | if (start + 2 > section_end) |
| 4305 | { |
| 4306 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4307 | offset); |
| 4308 | break; |
| 4309 | } |
| 4310 | |
| 4311 | SAFE_BYTE_GET_AND_INC (length, start, 2, section_end); |
| 4312 | |
| 4313 | if (start + length > section_end) |
| 4314 | { |
| 4315 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4316 | offset); |
| 4317 | break; |
| 4318 | } |
| 4319 | |
| 4320 | print_dwarf_vma (begin + base_address, pointer_size); |
| 4321 | print_dwarf_vma (end + base_address, pointer_size); |
| 4322 | |
| 4323 | putchar ('('); |
| 4324 | need_frame_base = decode_location_expression (start, |
| 4325 | pointer_size, |
| 4326 | offset_size, |
| 4327 | dwarf_version, |
| 4328 | length, |
| 4329 | cu_offset, section); |
| 4330 | putchar (')'); |
| 4331 | |
| 4332 | if (need_frame_base && !has_frame_base) |
| 4333 | printf (_(" [without DW_AT_frame_base]")); |
| 4334 | |
| 4335 | if (begin == end) |
| 4336 | fputs (_(" (start == end)"), stdout); |
| 4337 | else if (begin > end) |
| 4338 | fputs (_(" (start > end)"), stdout); |
| 4339 | |
| 4340 | putchar ('\n'); |
| 4341 | |
| 4342 | start += length; |
| 4343 | } |
| 4344 | |
| 4345 | *start_ptr = start; |
| 4346 | } |
| 4347 | |
| 4348 | /* Print a .debug_addr table index in decimal, surrounded by square brackets, |
| 4349 | right-adjusted in a field of length LEN, and followed by a space. */ |
| 4350 | |
| 4351 | static void |
| 4352 | print_addr_index (unsigned int idx, unsigned int len) |
| 4353 | { |
| 4354 | static char buf[15]; |
| 4355 | snprintf (buf, sizeof (buf), "[%d]", idx); |
| 4356 | printf ("%*s ", len, buf); |
| 4357 | } |
| 4358 | |
| 4359 | /* Display a location list from a .dwo section. It uses address indexes rather |
| 4360 | than embedded addresses. This code closely follows display_loc_list, but the |
| 4361 | two are sufficiently different that combining things is very ugly. */ |
| 4362 | |
| 4363 | static void |
| 4364 | display_loc_list_dwo (struct dwarf_section *section, |
| 4365 | unsigned char **start_ptr, |
| 4366 | int debug_info_entry, |
| 4367 | unsigned long offset, |
| 4368 | int has_frame_base) |
| 4369 | { |
| 4370 | unsigned char *start = *start_ptr; |
| 4371 | unsigned char *section_end = section->start + section->size; |
| 4372 | unsigned long cu_offset = debug_information [debug_info_entry].cu_offset; |
| 4373 | unsigned int pointer_size = debug_information [debug_info_entry].pointer_size; |
| 4374 | unsigned int offset_size = debug_information [debug_info_entry].offset_size; |
| 4375 | int dwarf_version = debug_information [debug_info_entry].dwarf_version; |
| 4376 | int entry_type; |
| 4377 | unsigned short length; |
| 4378 | int need_frame_base; |
| 4379 | unsigned int idx; |
| 4380 | unsigned int bytes_read; |
| 4381 | |
| 4382 | if (pointer_size < 2 || pointer_size > 8) |
| 4383 | { |
| 4384 | warn (_("Invalid pointer size (%d) in debug info for entry %d\n"), |
| 4385 | pointer_size, debug_info_entry); |
| 4386 | return; |
| 4387 | } |
| 4388 | |
| 4389 | while (1) |
| 4390 | { |
| 4391 | printf (" %8.8lx ", offset + (start - *start_ptr)); |
| 4392 | |
| 4393 | if (start >= section_end) |
| 4394 | { |
| 4395 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4396 | offset); |
| 4397 | break; |
| 4398 | } |
| 4399 | |
| 4400 | SAFE_BYTE_GET_AND_INC (entry_type, start, 1, section_end); |
| 4401 | switch (entry_type) |
| 4402 | { |
| 4403 | case 0: /* A terminating entry. */ |
| 4404 | *start_ptr = start; |
| 4405 | printf (_("<End of list>\n")); |
| 4406 | return; |
| 4407 | case 1: /* A base-address entry. */ |
| 4408 | idx = read_uleb128 (start, &bytes_read, section_end); |
| 4409 | start += bytes_read; |
| 4410 | print_addr_index (idx, 8); |
| 4411 | printf (" "); |
| 4412 | printf (_("(base address selection entry)\n")); |
| 4413 | continue; |
| 4414 | case 2: /* A start/end entry. */ |
| 4415 | idx = read_uleb128 (start, &bytes_read, section_end); |
| 4416 | start += bytes_read; |
| 4417 | print_addr_index (idx, 8); |
| 4418 | idx = read_uleb128 (start, &bytes_read, section_end); |
| 4419 | start += bytes_read; |
| 4420 | print_addr_index (idx, 8); |
| 4421 | break; |
| 4422 | case 3: /* A start/length entry. */ |
| 4423 | idx = read_uleb128 (start, &bytes_read, section_end); |
| 4424 | start += bytes_read; |
| 4425 | print_addr_index (idx, 8); |
| 4426 | SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); |
| 4427 | printf ("%08x ", idx); |
| 4428 | break; |
| 4429 | case 4: /* An offset pair entry. */ |
| 4430 | SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); |
| 4431 | printf ("%08x ", idx); |
| 4432 | SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); |
| 4433 | printf ("%08x ", idx); |
| 4434 | break; |
| 4435 | default: |
| 4436 | warn (_("Unknown location list entry type 0x%x.\n"), entry_type); |
| 4437 | *start_ptr = start; |
| 4438 | return; |
| 4439 | } |
| 4440 | |
| 4441 | if (start + 2 > section_end) |
| 4442 | { |
| 4443 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4444 | offset); |
| 4445 | break; |
| 4446 | } |
| 4447 | |
| 4448 | SAFE_BYTE_GET_AND_INC (length, start, 2, section_end); |
| 4449 | if (start + length > section_end) |
| 4450 | { |
| 4451 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4452 | offset); |
| 4453 | break; |
| 4454 | } |
| 4455 | |
| 4456 | putchar ('('); |
| 4457 | need_frame_base = decode_location_expression (start, |
| 4458 | pointer_size, |
| 4459 | offset_size, |
| 4460 | dwarf_version, |
| 4461 | length, |
| 4462 | cu_offset, section); |
| 4463 | putchar (')'); |
| 4464 | |
| 4465 | if (need_frame_base && !has_frame_base) |
| 4466 | printf (_(" [without DW_AT_frame_base]")); |
| 4467 | |
| 4468 | putchar ('\n'); |
| 4469 | |
| 4470 | start += length; |
| 4471 | } |
| 4472 | |
| 4473 | *start_ptr = start; |
| 4474 | } |
| 4475 | |
| 4476 | /* Sort array of indexes in ascending order of loc_offsets[idx]. */ |
| 4477 | |
| 4478 | static dwarf_vma *loc_offsets; |
| 4479 | |
| 4480 | static int |
| 4481 | loc_offsets_compar (const void *ap, const void *bp) |
| 4482 | { |
| 4483 | dwarf_vma a = loc_offsets[*(const unsigned int *) ap]; |
| 4484 | dwarf_vma b = loc_offsets[*(const unsigned int *) bp]; |
| 4485 | |
| 4486 | return (a > b) - (b > a); |
| 4487 | } |
| 4488 | |
| 4489 | static int |
| 4490 | display_debug_loc (struct dwarf_section *section, void *file) |
| 4491 | { |
| 4492 | unsigned char *start = section->start; |
| 4493 | unsigned long bytes; |
| 4494 | unsigned char *section_begin = start; |
| 4495 | unsigned int num_loc_list = 0; |
| 4496 | unsigned long last_offset = 0; |
| 4497 | unsigned int first = 0; |
| 4498 | unsigned int i; |
| 4499 | unsigned int j; |
| 4500 | unsigned int k; |
| 4501 | int seen_first_offset = 0; |
| 4502 | int locs_sorted = 1; |
| 4503 | unsigned char *next; |
| 4504 | unsigned int *array = NULL; |
| 4505 | const char *suffix = strrchr (section->name, '.'); |
| 4506 | int is_dwo = 0; |
| 4507 | |
| 4508 | if (suffix && strcmp (suffix, ".dwo") == 0) |
| 4509 | is_dwo = 1; |
| 4510 | |
| 4511 | bytes = section->size; |
| 4512 | |
| 4513 | if (bytes == 0) |
| 4514 | { |
| 4515 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4516 | return 0; |
| 4517 | } |
| 4518 | |
| 4519 | if (load_debug_info (file) == 0) |
| 4520 | { |
| 4521 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 4522 | section->name); |
| 4523 | return 0; |
| 4524 | } |
| 4525 | |
| 4526 | /* Check the order of location list in .debug_info section. If |
| 4527 | offsets of location lists are in the ascending order, we can |
| 4528 | use `debug_information' directly. */ |
| 4529 | for (i = 0; i < num_debug_info_entries; i++) |
| 4530 | { |
| 4531 | unsigned int num; |
| 4532 | |
| 4533 | num = debug_information [i].num_loc_offsets; |
| 4534 | if (num > num_loc_list) |
| 4535 | num_loc_list = num; |
| 4536 | |
| 4537 | /* Check if we can use `debug_information' directly. */ |
| 4538 | if (locs_sorted && num != 0) |
| 4539 | { |
| 4540 | if (!seen_first_offset) |
| 4541 | { |
| 4542 | /* This is the first location list. */ |
| 4543 | last_offset = debug_information [i].loc_offsets [0]; |
| 4544 | first = i; |
| 4545 | seen_first_offset = 1; |
| 4546 | j = 1; |
| 4547 | } |
| 4548 | else |
| 4549 | j = 0; |
| 4550 | |
| 4551 | for (; j < num; j++) |
| 4552 | { |
| 4553 | if (last_offset > |
| 4554 | debug_information [i].loc_offsets [j]) |
| 4555 | { |
| 4556 | locs_sorted = 0; |
| 4557 | break; |
| 4558 | } |
| 4559 | last_offset = debug_information [i].loc_offsets [j]; |
| 4560 | } |
| 4561 | } |
| 4562 | } |
| 4563 | |
| 4564 | if (!seen_first_offset) |
| 4565 | error (_("No location lists in .debug_info section!\n")); |
| 4566 | |
| 4567 | if (debug_information [first].num_loc_offsets > 0 |
| 4568 | && debug_information [first].loc_offsets [0] != 0) |
| 4569 | warn (_("Location lists in %s section start at 0x%s\n"), |
| 4570 | section->name, |
| 4571 | dwarf_vmatoa ("x", debug_information [first].loc_offsets [0])); |
| 4572 | |
| 4573 | if (!locs_sorted) |
| 4574 | array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int)); |
| 4575 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4576 | printf (_(" Offset Begin End Expression\n")); |
| 4577 | |
| 4578 | seen_first_offset = 0; |
| 4579 | for (i = first; i < num_debug_info_entries; i++) |
| 4580 | { |
| 4581 | unsigned long offset; |
| 4582 | unsigned long base_address; |
| 4583 | int has_frame_base; |
| 4584 | |
| 4585 | if (!locs_sorted) |
| 4586 | { |
| 4587 | for (k = 0; k < debug_information [i].num_loc_offsets; k++) |
| 4588 | array[k] = k; |
| 4589 | loc_offsets = debug_information [i].loc_offsets; |
| 4590 | qsort (array, debug_information [i].num_loc_offsets, |
| 4591 | sizeof (*array), loc_offsets_compar); |
| 4592 | } |
| 4593 | |
| 4594 | for (k = 0; k < debug_information [i].num_loc_offsets; k++) |
| 4595 | { |
| 4596 | j = locs_sorted ? k : array[k]; |
| 4597 | if (k |
| 4598 | && debug_information [i].loc_offsets [locs_sorted |
| 4599 | ? k - 1 : array [k - 1]] |
| 4600 | == debug_information [i].loc_offsets [j]) |
| 4601 | continue; |
| 4602 | has_frame_base = debug_information [i].have_frame_base [j]; |
| 4603 | offset = debug_information [i].loc_offsets [j]; |
| 4604 | next = section_begin + offset; |
| 4605 | base_address = debug_information [i].base_address; |
| 4606 | |
| 4607 | if (!seen_first_offset) |
| 4608 | seen_first_offset = 1; |
| 4609 | else |
| 4610 | { |
| 4611 | if (start < next) |
| 4612 | warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"), |
| 4613 | (unsigned long) (start - section_begin), |
| 4614 | (unsigned long) (next - section_begin)); |
| 4615 | else if (start > next) |
| 4616 | warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"), |
| 4617 | (unsigned long) (start - section_begin), |
| 4618 | (unsigned long) (next - section_begin)); |
| 4619 | } |
| 4620 | start = next; |
| 4621 | |
| 4622 | if (offset >= bytes) |
| 4623 | { |
| 4624 | warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"), |
| 4625 | offset); |
| 4626 | continue; |
| 4627 | } |
| 4628 | |
| 4629 | if (is_dwo) |
| 4630 | display_loc_list_dwo (section, &start, i, offset, has_frame_base); |
| 4631 | else |
| 4632 | display_loc_list (section, &start, i, offset, base_address, |
| 4633 | has_frame_base); |
| 4634 | } |
| 4635 | } |
| 4636 | |
| 4637 | if (start < section->start + section->size) |
| 4638 | warn (_("There are %ld unused bytes at the end of section %s\n"), |
| 4639 | (long) (section->start + section->size - start), section->name); |
| 4640 | putchar ('\n'); |
| 4641 | free (array); |
| 4642 | return 1; |
| 4643 | } |
| 4644 | |
| 4645 | static int |
| 4646 | display_debug_str (struct dwarf_section *section, |
| 4647 | void *file ATTRIBUTE_UNUSED) |
| 4648 | { |
| 4649 | unsigned char *start = section->start; |
| 4650 | unsigned long bytes = section->size; |
| 4651 | dwarf_vma addr = section->address; |
| 4652 | |
| 4653 | if (bytes == 0) |
| 4654 | { |
| 4655 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4656 | return 0; |
| 4657 | } |
| 4658 | |
| 4659 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4660 | |
| 4661 | while (bytes) |
| 4662 | { |
| 4663 | int j; |
| 4664 | int k; |
| 4665 | int lbytes; |
| 4666 | |
| 4667 | lbytes = (bytes > 16 ? 16 : bytes); |
| 4668 | |
| 4669 | printf (" 0x%8.8lx ", (unsigned long) addr); |
| 4670 | |
| 4671 | for (j = 0; j < 16; j++) |
| 4672 | { |
| 4673 | if (j < lbytes) |
| 4674 | printf ("%2.2x", start[j]); |
| 4675 | else |
| 4676 | printf (" "); |
| 4677 | |
| 4678 | if ((j & 3) == 3) |
| 4679 | printf (" "); |
| 4680 | } |
| 4681 | |
| 4682 | for (j = 0; j < lbytes; j++) |
| 4683 | { |
| 4684 | k = start[j]; |
| 4685 | if (k >= ' ' && k < 0x80) |
| 4686 | printf ("%c", k); |
| 4687 | else |
| 4688 | printf ("."); |
| 4689 | } |
| 4690 | |
| 4691 | putchar ('\n'); |
| 4692 | |
| 4693 | start += lbytes; |
| 4694 | addr += lbytes; |
| 4695 | bytes -= lbytes; |
| 4696 | } |
| 4697 | |
| 4698 | putchar ('\n'); |
| 4699 | |
| 4700 | return 1; |
| 4701 | } |
| 4702 | |
| 4703 | static int |
| 4704 | display_debug_info (struct dwarf_section *section, void *file) |
| 4705 | { |
| 4706 | return process_debug_info (section, file, section->abbrev_sec, 0, 0); |
| 4707 | } |
| 4708 | |
| 4709 | static int |
| 4710 | display_debug_types (struct dwarf_section *section, void *file) |
| 4711 | { |
| 4712 | return process_debug_info (section, file, section->abbrev_sec, 0, 1); |
| 4713 | } |
| 4714 | |
| 4715 | static int |
| 4716 | display_trace_info (struct dwarf_section *section, void *file) |
| 4717 | { |
| 4718 | return process_debug_info (section, file, section->abbrev_sec, 0, 0); |
| 4719 | } |
| 4720 | |
| 4721 | static int |
| 4722 | display_debug_aranges (struct dwarf_section *section, |
| 4723 | void *file ATTRIBUTE_UNUSED) |
| 4724 | { |
| 4725 | unsigned char *start = section->start; |
| 4726 | unsigned char *end = start + section->size; |
| 4727 | |
| 4728 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4729 | |
| 4730 | /* It does not matter if this load fails, |
| 4731 | we test for that later on. */ |
| 4732 | load_debug_info (file); |
| 4733 | |
| 4734 | while (start < end) |
| 4735 | { |
| 4736 | unsigned char *hdrptr; |
| 4737 | DWARF2_Internal_ARange arange; |
| 4738 | unsigned char *addr_ranges; |
| 4739 | dwarf_vma length; |
| 4740 | dwarf_vma address; |
| 4741 | unsigned char address_size; |
| 4742 | int excess; |
| 4743 | unsigned int offset_size; |
| 4744 | unsigned int initial_length_size; |
| 4745 | |
| 4746 | hdrptr = start; |
| 4747 | |
| 4748 | SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 4, end); |
| 4749 | if (arange.ar_length == 0xffffffff) |
| 4750 | { |
| 4751 | SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 8, end); |
| 4752 | offset_size = 8; |
| 4753 | initial_length_size = 12; |
| 4754 | } |
| 4755 | else |
| 4756 | { |
| 4757 | offset_size = 4; |
| 4758 | initial_length_size = 4; |
| 4759 | } |
| 4760 | |
| 4761 | SAFE_BYTE_GET_AND_INC (arange.ar_version, hdrptr, 2, end); |
| 4762 | SAFE_BYTE_GET_AND_INC (arange.ar_info_offset, hdrptr, offset_size, end); |
| 4763 | |
| 4764 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
| 4765 | && num_debug_info_entries > 0 |
| 4766 | && find_debug_info_for_offset (arange.ar_info_offset) == NULL) |
| 4767 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), |
| 4768 | (unsigned long) arange.ar_info_offset, section->name); |
| 4769 | |
| 4770 | SAFE_BYTE_GET_AND_INC (arange.ar_pointer_size, hdrptr, 1, end); |
| 4771 | SAFE_BYTE_GET_AND_INC (arange.ar_segment_size, hdrptr, 1, end); |
| 4772 | |
| 4773 | if (arange.ar_version != 2 && arange.ar_version != 3) |
| 4774 | { |
| 4775 | warn (_("Only DWARF 2 and 3 aranges are currently supported.\n")); |
| 4776 | break; |
| 4777 | } |
| 4778 | |
| 4779 | printf (_(" Length: %ld\n"), |
| 4780 | (long) arange.ar_length); |
| 4781 | printf (_(" Version: %d\n"), arange.ar_version); |
| 4782 | printf (_(" Offset into .debug_info: 0x%lx\n"), |
| 4783 | (unsigned long) arange.ar_info_offset); |
| 4784 | printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size); |
| 4785 | printf (_(" Segment Size: %d\n"), arange.ar_segment_size); |
| 4786 | |
| 4787 | address_size = arange.ar_pointer_size + arange.ar_segment_size; |
| 4788 | |
| 4789 | /* PR 17512: file: 001-108546-0.001:0.1. */ |
| 4790 | if (address_size == 0 || address_size > 8) |
| 4791 | { |
| 4792 | error (_("Invalid address size in %s section!\n"), |
| 4793 | section->name); |
| 4794 | break; |
| 4795 | } |
| 4796 | |
| 4797 | /* The DWARF spec does not require that the address size be a power |
| 4798 | of two, but we do. This will have to change if we ever encounter |
| 4799 | an uneven architecture. */ |
| 4800 | if ((address_size & (address_size - 1)) != 0) |
| 4801 | { |
| 4802 | warn (_("Pointer size + Segment size is not a power of two.\n")); |
| 4803 | break; |
| 4804 | } |
| 4805 | |
| 4806 | if (address_size > 4) |
| 4807 | printf (_("\n Address Length\n")); |
| 4808 | else |
| 4809 | printf (_("\n Address Length\n")); |
| 4810 | |
| 4811 | addr_ranges = hdrptr; |
| 4812 | |
| 4813 | /* Must pad to an alignment boundary that is twice the address size. */ |
| 4814 | excess = (hdrptr - start) % (2 * address_size); |
| 4815 | if (excess) |
| 4816 | addr_ranges += (2 * address_size) - excess; |
| 4817 | |
| 4818 | start += arange.ar_length + initial_length_size; |
| 4819 | |
| 4820 | while (addr_ranges + 2 * address_size <= start) |
| 4821 | { |
| 4822 | SAFE_BYTE_GET_AND_INC (address, addr_ranges, address_size, end); |
| 4823 | SAFE_BYTE_GET_AND_INC (length, addr_ranges, address_size, end); |
| 4824 | |
| 4825 | printf (" "); |
| 4826 | print_dwarf_vma (address, address_size); |
| 4827 | print_dwarf_vma (length, address_size); |
| 4828 | putchar ('\n'); |
| 4829 | } |
| 4830 | } |
| 4831 | |
| 4832 | printf ("\n"); |
| 4833 | |
| 4834 | return 1; |
| 4835 | } |
| 4836 | |
| 4837 | /* Comparison function for qsort. */ |
| 4838 | static int |
| 4839 | comp_addr_base (const void * v0, const void * v1) |
| 4840 | { |
| 4841 | debug_info * info0 = (debug_info *) v0; |
| 4842 | debug_info * info1 = (debug_info *) v1; |
| 4843 | return info0->addr_base - info1->addr_base; |
| 4844 | } |
| 4845 | |
| 4846 | /* Display the debug_addr section. */ |
| 4847 | static int |
| 4848 | display_debug_addr (struct dwarf_section *section, |
| 4849 | void *file) |
| 4850 | { |
| 4851 | debug_info **debug_addr_info; |
| 4852 | unsigned char *entry; |
| 4853 | unsigned char *end; |
| 4854 | unsigned int i; |
| 4855 | unsigned int count; |
| 4856 | |
| 4857 | if (section->size == 0) |
| 4858 | { |
| 4859 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4860 | return 0; |
| 4861 | } |
| 4862 | |
| 4863 | if (load_debug_info (file) == 0) |
| 4864 | { |
| 4865 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 4866 | section->name); |
| 4867 | return 0; |
| 4868 | } |
| 4869 | |
| 4870 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4871 | |
| 4872 | debug_addr_info = (debug_info **) xmalloc ((num_debug_info_entries + 1) |
| 4873 | * sizeof (debug_info *)); |
| 4874 | |
| 4875 | count = 0; |
| 4876 | for (i = 0; i < num_debug_info_entries; i++) |
| 4877 | { |
| 4878 | if (debug_information [i].addr_base != DEBUG_INFO_UNAVAILABLE) |
| 4879 | debug_addr_info [count++] = &debug_information [i]; |
| 4880 | } |
| 4881 | |
| 4882 | /* Add a sentinel to make iteration convenient. */ |
| 4883 | debug_addr_info [count] = (debug_info *) xmalloc (sizeof (debug_info)); |
| 4884 | debug_addr_info [count]->addr_base = section->size; |
| 4885 | |
| 4886 | qsort (debug_addr_info, count, sizeof (debug_info *), comp_addr_base); |
| 4887 | for (i = 0; i < count; i++) |
| 4888 | { |
| 4889 | unsigned int idx; |
| 4890 | unsigned int address_size = debug_addr_info [i]->pointer_size; |
| 4891 | |
| 4892 | printf (_(" For compilation unit at offset 0x%s:\n"), |
| 4893 | dwarf_vmatoa ("x", debug_addr_info [i]->cu_offset)); |
| 4894 | |
| 4895 | printf (_("\tIndex\tAddress\n")); |
| 4896 | entry = section->start + debug_addr_info [i]->addr_base; |
| 4897 | end = section->start + debug_addr_info [i + 1]->addr_base; |
| 4898 | idx = 0; |
| 4899 | while (entry < end) |
| 4900 | { |
| 4901 | dwarf_vma base = byte_get (entry, address_size); |
| 4902 | printf (_("\t%d:\t"), idx); |
| 4903 | print_dwarf_vma (base, address_size); |
| 4904 | printf ("\n"); |
| 4905 | entry += address_size; |
| 4906 | idx++; |
| 4907 | } |
| 4908 | } |
| 4909 | printf ("\n"); |
| 4910 | |
| 4911 | free (debug_addr_info); |
| 4912 | return 1; |
| 4913 | } |
| 4914 | |
| 4915 | /* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */ |
| 4916 | static int |
| 4917 | display_debug_str_offsets (struct dwarf_section *section, |
| 4918 | void *file ATTRIBUTE_UNUSED) |
| 4919 | { |
| 4920 | if (section->size == 0) |
| 4921 | { |
| 4922 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4923 | return 0; |
| 4924 | } |
| 4925 | /* TODO: Dump the contents. This is made somewhat difficult by not knowing |
| 4926 | what the offset size is for this section. */ |
| 4927 | return 1; |
| 4928 | } |
| 4929 | |
| 4930 | /* Each debug_information[x].range_lists[y] gets this representation for |
| 4931 | sorting purposes. */ |
| 4932 | |
| 4933 | struct range_entry |
| 4934 | { |
| 4935 | /* The debug_information[x].range_lists[y] value. */ |
| 4936 | unsigned long ranges_offset; |
| 4937 | |
| 4938 | /* Original debug_information to find parameters of the data. */ |
| 4939 | debug_info *debug_info_p; |
| 4940 | }; |
| 4941 | |
| 4942 | /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */ |
| 4943 | |
| 4944 | static int |
| 4945 | range_entry_compar (const void *ap, const void *bp) |
| 4946 | { |
| 4947 | const struct range_entry *a_re = (const struct range_entry *) ap; |
| 4948 | const struct range_entry *b_re = (const struct range_entry *) bp; |
| 4949 | const unsigned long a = a_re->ranges_offset; |
| 4950 | const unsigned long b = b_re->ranges_offset; |
| 4951 | |
| 4952 | return (a > b) - (b > a); |
| 4953 | } |
| 4954 | |
| 4955 | static int |
| 4956 | display_debug_ranges (struct dwarf_section *section, |
| 4957 | void *file ATTRIBUTE_UNUSED) |
| 4958 | { |
| 4959 | unsigned char *start = section->start; |
| 4960 | unsigned char *last_start = start; |
| 4961 | unsigned long bytes = section->size; |
| 4962 | unsigned char *section_begin = start; |
| 4963 | unsigned char *finish = start + bytes; |
| 4964 | unsigned int num_range_list, i; |
| 4965 | struct range_entry *range_entries, *range_entry_fill; |
| 4966 | |
| 4967 | if (bytes == 0) |
| 4968 | { |
| 4969 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4970 | return 0; |
| 4971 | } |
| 4972 | |
| 4973 | if (load_debug_info (file) == 0) |
| 4974 | { |
| 4975 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 4976 | section->name); |
| 4977 | return 0; |
| 4978 | } |
| 4979 | |
| 4980 | num_range_list = 0; |
| 4981 | for (i = 0; i < num_debug_info_entries; i++) |
| 4982 | num_range_list += debug_information [i].num_range_lists; |
| 4983 | |
| 4984 | if (num_range_list == 0) |
| 4985 | { |
| 4986 | /* This can happen when the file was compiled with -gsplit-debug |
| 4987 | which removes references to range lists from the primary .o file. */ |
| 4988 | printf (_("No range lists in .debug_info section.\n")); |
| 4989 | return 1; |
| 4990 | } |
| 4991 | |
| 4992 | range_entries = (struct range_entry *) |
| 4993 | xmalloc (sizeof (*range_entries) * num_range_list); |
| 4994 | range_entry_fill = range_entries; |
| 4995 | |
| 4996 | for (i = 0; i < num_debug_info_entries; i++) |
| 4997 | { |
| 4998 | debug_info *debug_info_p = &debug_information[i]; |
| 4999 | unsigned int j; |
| 5000 | |
| 5001 | for (j = 0; j < debug_info_p->num_range_lists; j++) |
| 5002 | { |
| 5003 | range_entry_fill->ranges_offset = debug_info_p->range_lists[j]; |
| 5004 | range_entry_fill->debug_info_p = debug_info_p; |
| 5005 | range_entry_fill++; |
| 5006 | } |
| 5007 | } |
| 5008 | |
| 5009 | qsort (range_entries, num_range_list, sizeof (*range_entries), |
| 5010 | range_entry_compar); |
| 5011 | |
| 5012 | if (dwarf_check != 0 && range_entries[0].ranges_offset != 0) |
| 5013 | warn (_("Range lists in %s section start at 0x%lx\n"), |
| 5014 | section->name, range_entries[0].ranges_offset); |
| 5015 | |
| 5016 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 5017 | printf (_(" Offset Begin End\n")); |
| 5018 | |
| 5019 | for (i = 0; i < num_range_list; i++) |
| 5020 | { |
| 5021 | struct range_entry *range_entry = &range_entries[i]; |
| 5022 | debug_info *debug_info_p = range_entry->debug_info_p; |
| 5023 | unsigned int pointer_size; |
| 5024 | unsigned long offset; |
| 5025 | unsigned char *next; |
| 5026 | unsigned long base_address; |
| 5027 | |
| 5028 | pointer_size = debug_info_p->pointer_size; |
| 5029 | offset = range_entry->ranges_offset; |
| 5030 | next = section_begin + offset; |
| 5031 | base_address = debug_info_p->base_address; |
| 5032 | |
| 5033 | /* PR 17512: file: 001-101485-0.001:0.1. */ |
| 5034 | if (pointer_size < 2 || pointer_size > 8) |
| 5035 | { |
| 5036 | warn (_("Corrupt pointer size (%d) in debug entry at offset %8.8lx\n"), |
| 5037 | pointer_size, offset); |
| 5038 | continue; |
| 5039 | } |
| 5040 | |
| 5041 | if (dwarf_check != 0 && i > 0) |
| 5042 | { |
| 5043 | if (start < next) |
| 5044 | warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"), |
| 5045 | (unsigned long) (start - section_begin), |
| 5046 | (unsigned long) (next - section_begin), section->name); |
| 5047 | else if (start > next) |
| 5048 | { |
| 5049 | if (next == last_start) |
| 5050 | continue; |
| 5051 | warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), |
| 5052 | (unsigned long) (start - section_begin), |
| 5053 | (unsigned long) (next - section_begin), section->name); |
| 5054 | } |
| 5055 | } |
| 5056 | start = next; |
| 5057 | last_start = next; |
| 5058 | |
| 5059 | while (start < finish) |
| 5060 | { |
| 5061 | dwarf_vma begin; |
| 5062 | dwarf_vma end; |
| 5063 | |
| 5064 | /* Note: we use sign extension here in order to be sure that |
| 5065 | we can detect the -1 escape value. Sign extension into the |
| 5066 | top 32 bits of a 32-bit address will not affect the values |
| 5067 | that we display since we always show hex values, and always |
| 5068 | the bottom 32-bits. */ |
| 5069 | SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish); |
| 5070 | if (start >= finish) |
| 5071 | break; |
| 5072 | SAFE_SIGNED_BYTE_GET_AND_INC (end, start, pointer_size, finish); |
| 5073 | |
| 5074 | printf (" %8.8lx ", offset); |
| 5075 | |
| 5076 | if (begin == 0 && end == 0) |
| 5077 | { |
| 5078 | printf (_("<End of list>\n")); |
| 5079 | break; |
| 5080 | } |
| 5081 | |
| 5082 | /* Check base address specifiers. */ |
| 5083 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
| 5084 | { |
| 5085 | base_address = end; |
| 5086 | print_dwarf_vma (begin, pointer_size); |
| 5087 | print_dwarf_vma (end, pointer_size); |
| 5088 | printf ("(base address)\n"); |
| 5089 | continue; |
| 5090 | } |
| 5091 | |
| 5092 | print_dwarf_vma (begin + base_address, pointer_size); |
| 5093 | print_dwarf_vma (end + base_address, pointer_size); |
| 5094 | |
| 5095 | if (begin == end) |
| 5096 | fputs (_("(start == end)"), stdout); |
| 5097 | else if (begin > end) |
| 5098 | fputs (_("(start > end)"), stdout); |
| 5099 | |
| 5100 | putchar ('\n'); |
| 5101 | } |
| 5102 | } |
| 5103 | putchar ('\n'); |
| 5104 | |
| 5105 | free (range_entries); |
| 5106 | |
| 5107 | return 1; |
| 5108 | } |
| 5109 | |
| 5110 | typedef struct Frame_Chunk |
| 5111 | { |
| 5112 | struct Frame_Chunk *next; |
| 5113 | unsigned char *chunk_start; |
| 5114 | unsigned int ncols; |
| 5115 | /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */ |
| 5116 | short int *col_type; |
| 5117 | int *col_offset; |
| 5118 | char *augmentation; |
| 5119 | unsigned int code_factor; |
| 5120 | int data_factor; |
| 5121 | dwarf_vma pc_begin; |
| 5122 | dwarf_vma pc_range; |
| 5123 | int cfa_reg; |
| 5124 | int cfa_offset; |
| 5125 | unsigned int ra; |
| 5126 | unsigned char fde_encoding; |
| 5127 | unsigned char cfa_exp; |
| 5128 | unsigned char ptr_size; |
| 5129 | unsigned char segment_size; |
| 5130 | } |
| 5131 | Frame_Chunk; |
| 5132 | |
| 5133 | static const char *const *dwarf_regnames; |
| 5134 | static unsigned int dwarf_regnames_count; |
| 5135 | |
| 5136 | /* A marker for a col_type that means this column was never referenced |
| 5137 | in the frame info. */ |
| 5138 | #define DW_CFA_unreferenced (-1) |
| 5139 | |
| 5140 | /* Return 0 if no more space is needed, 1 if more space is needed, |
| 5141 | -1 for invalid reg. */ |
| 5142 | |
| 5143 | static int |
| 5144 | frame_need_space (Frame_Chunk *fc, unsigned int reg) |
| 5145 | { |
| 5146 | unsigned int prev = fc->ncols; |
| 5147 | |
| 5148 | if (reg < (unsigned int) fc->ncols) |
| 5149 | return 0; |
| 5150 | |
| 5151 | if (dwarf_regnames_count |
| 5152 | && reg > dwarf_regnames_count) |
| 5153 | return -1; |
| 5154 | |
| 5155 | fc->ncols = reg + 1; |
| 5156 | /* PR 17512: file: 10450-2643-0.004. |
| 5157 | If reg == -1 then this can happen... */ |
| 5158 | if (fc->ncols == 0) |
| 5159 | return -1; |
| 5160 | |
| 5161 | /* PR 17512: file: 2844a11d. */ |
| 5162 | if (fc->ncols > 1024) |
| 5163 | { |
| 5164 | error (_("Unfeasibly large register number: %u\n"), reg); |
| 5165 | fc->ncols = 0; |
| 5166 | /* FIXME: 1024 is an arbitrary limit. Increase it if |
| 5167 | we ever encounter a valid binary that exceeds it. */ |
| 5168 | return -1; |
| 5169 | } |
| 5170 | |
| 5171 | fc->col_type = (short int *) xcrealloc (fc->col_type, fc->ncols, |
| 5172 | sizeof (short int)); |
| 5173 | fc->col_offset = (int *) xcrealloc (fc->col_offset, fc->ncols, sizeof (int)); |
| 5174 | /* PR 17512: file:002-10025-0.005. */ |
| 5175 | if (fc->col_type == NULL || fc->col_offset == NULL) |
| 5176 | { |
| 5177 | error (_("Out of memory allocating %u columns in dwarf frame arrays\n"), |
| 5178 | fc->ncols); |
| 5179 | fc->ncols = 0; |
| 5180 | return -1; |
| 5181 | } |
| 5182 | |
| 5183 | while (prev < fc->ncols) |
| 5184 | { |
| 5185 | fc->col_type[prev] = DW_CFA_unreferenced; |
| 5186 | fc->col_offset[prev] = 0; |
| 5187 | prev++; |
| 5188 | } |
| 5189 | return 1; |
| 5190 | } |
| 5191 | |
| 5192 | static const char *const dwarf_regnames_i386[] = |
| 5193 | { |
| 5194 | "eax", "ecx", "edx", "ebx", /* 0 - 3 */ |
| 5195 | "esp", "ebp", "esi", "edi", /* 4 - 7 */ |
| 5196 | "eip", "eflags", NULL, /* 8 - 10 */ |
| 5197 | "st0", "st1", "st2", "st3", /* 11 - 14 */ |
| 5198 | "st4", "st5", "st6", "st7", /* 15 - 18 */ |
| 5199 | NULL, NULL, /* 19 - 20 */ |
| 5200 | "xmm0", "xmm1", "xmm2", "xmm3", /* 21 - 24 */ |
| 5201 | "xmm4", "xmm5", "xmm6", "xmm7", /* 25 - 28 */ |
| 5202 | "mm0", "mm1", "mm2", "mm3", /* 29 - 32 */ |
| 5203 | "mm4", "mm5", "mm6", "mm7", /* 33 - 36 */ |
| 5204 | "fcw", "fsw", "mxcsr", /* 37 - 39 */ |
| 5205 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, /* 40 - 47 */ |
| 5206 | "tr", "ldtr", /* 48 - 49 */ |
| 5207 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 50 - 57 */ |
| 5208 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 58 - 65 */ |
| 5209 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 66 - 73 */ |
| 5210 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 74 - 81 */ |
| 5211 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 82 - 89 */ |
| 5212 | NULL, NULL, NULL, /* 90 - 92 */ |
| 5213 | "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" /* 93 - 100 */ |
| 5214 | }; |
| 5215 | |
| 5216 | void |
| 5217 | init_dwarf_regnames_i386 (void) |
| 5218 | { |
| 5219 | dwarf_regnames = dwarf_regnames_i386; |
| 5220 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386); |
| 5221 | } |
| 5222 | |
| 5223 | static const char *const dwarf_regnames_x86_64[] = |
| 5224 | { |
| 5225 | "rax", "rdx", "rcx", "rbx", |
| 5226 | "rsi", "rdi", "rbp", "rsp", |
| 5227 | "r8", "r9", "r10", "r11", |
| 5228 | "r12", "r13", "r14", "r15", |
| 5229 | "rip", |
| 5230 | "xmm0", "xmm1", "xmm2", "xmm3", |
| 5231 | "xmm4", "xmm5", "xmm6", "xmm7", |
| 5232 | "xmm8", "xmm9", "xmm10", "xmm11", |
| 5233 | "xmm12", "xmm13", "xmm14", "xmm15", |
| 5234 | "st0", "st1", "st2", "st3", |
| 5235 | "st4", "st5", "st6", "st7", |
| 5236 | "mm0", "mm1", "mm2", "mm3", |
| 5237 | "mm4", "mm5", "mm6", "mm7", |
| 5238 | "rflags", |
| 5239 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, |
| 5240 | "fs.base", "gs.base", NULL, NULL, |
| 5241 | "tr", "ldtr", |
| 5242 | "mxcsr", "fcw", "fsw", |
| 5243 | "xmm16", "xmm17", "xmm18", "xmm19", |
| 5244 | "xmm20", "xmm21", "xmm22", "xmm23", |
| 5245 | "xmm24", "xmm25", "xmm26", "xmm27", |
| 5246 | "xmm28", "xmm29", "xmm30", "xmm31", |
| 5247 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 83 - 90 */ |
| 5248 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 91 - 98 */ |
| 5249 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 99 - 106 */ |
| 5250 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 107 - 114 */ |
| 5251 | NULL, NULL, NULL, /* 115 - 117 */ |
| 5252 | "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" |
| 5253 | }; |
| 5254 | |
| 5255 | void |
| 5256 | init_dwarf_regnames_x86_64 (void) |
| 5257 | { |
| 5258 | dwarf_regnames = dwarf_regnames_x86_64; |
| 5259 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64); |
| 5260 | } |
| 5261 | |
| 5262 | static const char *const dwarf_regnames_aarch64[] = |
| 5263 | { |
| 5264 | "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", |
| 5265 | "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", |
| 5266 | "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", |
| 5267 | "x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp", |
| 5268 | NULL, "elr", NULL, NULL, NULL, NULL, NULL, NULL, |
| 5269 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| 5270 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| 5271 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| 5272 | "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", |
| 5273 | "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", |
| 5274 | "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", |
| 5275 | "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", |
| 5276 | }; |
| 5277 | |
| 5278 | void |
| 5279 | init_dwarf_regnames_aarch64 (void) |
| 5280 | { |
| 5281 | dwarf_regnames = dwarf_regnames_aarch64; |
| 5282 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_aarch64); |
| 5283 | } |
| 5284 | |
| 5285 | void |
| 5286 | init_dwarf_regnames (unsigned int e_machine) |
| 5287 | { |
| 5288 | switch (e_machine) |
| 5289 | { |
| 5290 | case EM_386: |
| 5291 | case EM_486: |
| 5292 | init_dwarf_regnames_i386 (); |
| 5293 | break; |
| 5294 | |
| 5295 | case EM_X86_64: |
| 5296 | case EM_L1OM: |
| 5297 | case EM_K1OM: |
| 5298 | init_dwarf_regnames_x86_64 (); |
| 5299 | break; |
| 5300 | |
| 5301 | case EM_AARCH64: |
| 5302 | init_dwarf_regnames_aarch64 (); |
| 5303 | break; |
| 5304 | |
| 5305 | default: |
| 5306 | break; |
| 5307 | } |
| 5308 | } |
| 5309 | |
| 5310 | static const char * |
| 5311 | regname (unsigned int regno, int row) |
| 5312 | { |
| 5313 | static char reg[64]; |
| 5314 | if (dwarf_regnames |
| 5315 | && regno < dwarf_regnames_count |
| 5316 | && dwarf_regnames [regno] != NULL) |
| 5317 | { |
| 5318 | if (row) |
| 5319 | return dwarf_regnames [regno]; |
| 5320 | snprintf (reg, sizeof (reg), "r%d (%s)", regno, |
| 5321 | dwarf_regnames [regno]); |
| 5322 | } |
| 5323 | else |
| 5324 | snprintf (reg, sizeof (reg), "r%d", regno); |
| 5325 | return reg; |
| 5326 | } |
| 5327 | |
| 5328 | static void |
| 5329 | frame_display_row (Frame_Chunk *fc, int *need_col_headers, unsigned int *max_regs) |
| 5330 | { |
| 5331 | unsigned int r; |
| 5332 | char tmp[100]; |
| 5333 | |
| 5334 | if (*max_regs < fc->ncols) |
| 5335 | *max_regs = fc->ncols; |
| 5336 | |
| 5337 | if (*need_col_headers) |
| 5338 | { |
| 5339 | static const char *sloc = " LOC"; |
| 5340 | |
| 5341 | *need_col_headers = 0; |
| 5342 | |
| 5343 | printf ("%-*s CFA ", eh_addr_size * 2, sloc); |
| 5344 | |
| 5345 | for (r = 0; r < *max_regs; r++) |
| 5346 | if (fc->col_type[r] != DW_CFA_unreferenced) |
| 5347 | { |
| 5348 | if (r == fc->ra) |
| 5349 | printf ("ra "); |
| 5350 | else |
| 5351 | printf ("%-5s ", regname (r, 1)); |
| 5352 | } |
| 5353 | |
| 5354 | printf ("\n"); |
| 5355 | } |
| 5356 | |
| 5357 | print_dwarf_vma (fc->pc_begin, eh_addr_size); |
| 5358 | if (fc->cfa_exp) |
| 5359 | strcpy (tmp, "exp"); |
| 5360 | else |
| 5361 | sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset); |
| 5362 | printf ("%-8s ", tmp); |
| 5363 | |
| 5364 | for (r = 0; r < fc->ncols; r++) |
| 5365 | { |
| 5366 | if (fc->col_type[r] != DW_CFA_unreferenced) |
| 5367 | { |
| 5368 | switch (fc->col_type[r]) |
| 5369 | { |
| 5370 | case DW_CFA_undefined: |
| 5371 | strcpy (tmp, "u"); |
| 5372 | break; |
| 5373 | case DW_CFA_same_value: |
| 5374 | strcpy (tmp, "s"); |
| 5375 | break; |
| 5376 | case DW_CFA_offset: |
| 5377 | sprintf (tmp, "c%+d", fc->col_offset[r]); |
| 5378 | break; |
| 5379 | case DW_CFA_val_offset: |
| 5380 | sprintf (tmp, "v%+d", fc->col_offset[r]); |
| 5381 | break; |
| 5382 | case DW_CFA_register: |
| 5383 | sprintf (tmp, "%s", regname (fc->col_offset[r], 0)); |
| 5384 | break; |
| 5385 | case DW_CFA_expression: |
| 5386 | strcpy (tmp, "exp"); |
| 5387 | break; |
| 5388 | case DW_CFA_val_expression: |
| 5389 | strcpy (tmp, "vexp"); |
| 5390 | break; |
| 5391 | default: |
| 5392 | strcpy (tmp, "n/a"); |
| 5393 | break; |
| 5394 | } |
| 5395 | printf ("%-5s ", tmp); |
| 5396 | } |
| 5397 | } |
| 5398 | printf ("\n"); |
| 5399 | } |
| 5400 | |
| 5401 | #define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end) |
| 5402 | #define LEB() read_uleb128 (start, & length_return, end); start += length_return |
| 5403 | #define SLEB() read_sleb128 (start, & length_return, end); start += length_return |
| 5404 | |
| 5405 | static unsigned char * |
| 5406 | read_cie (unsigned char *start, unsigned char *end, |
| 5407 | Frame_Chunk **p_cie, int *p_version, |
| 5408 | unsigned long *p_aug_len, unsigned char **p_aug) |
| 5409 | { |
| 5410 | int version; |
| 5411 | Frame_Chunk *fc; |
| 5412 | unsigned int length_return; |
| 5413 | unsigned char *augmentation_data = NULL; |
| 5414 | unsigned long augmentation_data_len = 0; |
| 5415 | |
| 5416 | * p_cie = NULL; |
| 5417 | /* PR 17512: file: 001-228113-0.004. */ |
| 5418 | if (start >= end) |
| 5419 | return end; |
| 5420 | |
| 5421 | fc = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk)); |
| 5422 | memset (fc, 0, sizeof (Frame_Chunk)); |
| 5423 | |
| 5424 | fc->col_type = (short int *) xmalloc (sizeof (short int)); |
| 5425 | fc->col_offset = (int *) xmalloc (sizeof (int)); |
| 5426 | |
| 5427 | version = *start++; |
| 5428 | |
| 5429 | fc->augmentation = (char *) start; |
| 5430 | /* PR 17512: file: 001-228113-0.004. |
| 5431 | Skip past augmentation name, but avoid running off the end of the data. */ |
| 5432 | while (start < end) |
| 5433 | if (* start ++ == '\0') |
| 5434 | break; |
| 5435 | if (start == end) |
| 5436 | { |
| 5437 | warn (_("No terminator for augmentation name\n")); |
| 5438 | return start; |
| 5439 | } |
| 5440 | |
| 5441 | if (strcmp (fc->augmentation, "eh") == 0) |
| 5442 | start += eh_addr_size; |
| 5443 | |
| 5444 | if (version >= 4) |
| 5445 | { |
| 5446 | GET (fc->ptr_size, 1); |
| 5447 | GET (fc->segment_size, 1); |
| 5448 | eh_addr_size = fc->ptr_size; |
| 5449 | } |
| 5450 | else |
| 5451 | { |
| 5452 | fc->ptr_size = eh_addr_size; |
| 5453 | fc->segment_size = 0; |
| 5454 | } |
| 5455 | fc->code_factor = LEB (); |
| 5456 | fc->data_factor = SLEB (); |
| 5457 | if (version == 1) |
| 5458 | { |
| 5459 | GET (fc->ra, 1); |
| 5460 | } |
| 5461 | else |
| 5462 | { |
| 5463 | fc->ra = LEB (); |
| 5464 | } |
| 5465 | |
| 5466 | if (fc->augmentation[0] == 'z') |
| 5467 | { |
| 5468 | augmentation_data_len = LEB (); |
| 5469 | augmentation_data = start; |
| 5470 | start += augmentation_data_len; |
| 5471 | /* PR 17512: file: 11042-2589-0.004. */ |
| 5472 | if (start > end) |
| 5473 | { |
| 5474 | warn (_("Augmentation data too long: 0x%lx"), augmentation_data_len); |
| 5475 | return end; |
| 5476 | } |
| 5477 | } |
| 5478 | |
| 5479 | if (augmentation_data_len) |
| 5480 | { |
| 5481 | unsigned char *p, *q; |
| 5482 | p = (unsigned char *) fc->augmentation + 1; |
| 5483 | q = augmentation_data; |
| 5484 | |
| 5485 | while (p < end && q < augmentation_data + augmentation_data_len) |
| 5486 | { |
| 5487 | if (*p == 'L') |
| 5488 | q++; |
| 5489 | else if (*p == 'P') |
| 5490 | q += 1 + size_of_encoded_value (*q); |
| 5491 | else if (*p == 'R') |
| 5492 | fc->fde_encoding = *q++; |
| 5493 | else if (*p == 'S') |
| 5494 | ; |
| 5495 | else |
| 5496 | break; |
| 5497 | p++; |
| 5498 | } |
| 5499 | } |
| 5500 | |
| 5501 | *p_cie = fc; |
| 5502 | if (p_version) |
| 5503 | *p_version = version; |
| 5504 | if (p_aug_len) |
| 5505 | { |
| 5506 | *p_aug_len = augmentation_data_len; |
| 5507 | *p_aug = augmentation_data; |
| 5508 | } |
| 5509 | return start; |
| 5510 | } |
| 5511 | |
| 5512 | static int |
| 5513 | display_debug_frames (struct dwarf_section *section, |
| 5514 | void *file ATTRIBUTE_UNUSED) |
| 5515 | { |
| 5516 | unsigned char *start = section->start; |
| 5517 | unsigned char *end = start + section->size; |
| 5518 | unsigned char *section_start = start; |
| 5519 | Frame_Chunk *chunks = 0, *forward_refs = 0; |
| 5520 | Frame_Chunk *remembered_state = 0; |
| 5521 | Frame_Chunk *rs; |
| 5522 | int is_eh = strcmp (section->name, ".eh_frame") == 0; |
| 5523 | unsigned int length_return; |
| 5524 | unsigned int max_regs = 0; |
| 5525 | const char *bad_reg = _("bad register: "); |
| 5526 | int saved_eh_addr_size = eh_addr_size; |
| 5527 | |
| 5528 | printf (_("Contents of the %s section:\n"), section->name); |
| 5529 | |
| 5530 | while (start < end) |
| 5531 | { |
| 5532 | unsigned char *saved_start; |
| 5533 | unsigned char *block_end; |
| 5534 | dwarf_vma length; |
| 5535 | dwarf_vma cie_id; |
| 5536 | Frame_Chunk *fc; |
| 5537 | Frame_Chunk *cie; |
| 5538 | int need_col_headers = 1; |
| 5539 | unsigned char *augmentation_data = NULL; |
| 5540 | unsigned long augmentation_data_len = 0; |
| 5541 | unsigned int encoded_ptr_size = saved_eh_addr_size; |
| 5542 | unsigned int offset_size; |
| 5543 | unsigned int initial_length_size; |
| 5544 | |
| 5545 | saved_start = start; |
| 5546 | |
| 5547 | SAFE_BYTE_GET_AND_INC (length, start, 4, end); |
| 5548 | |
| 5549 | if (length == 0) |
| 5550 | { |
| 5551 | printf ("\n%08lx ZERO terminator\n\n", |
| 5552 | (unsigned long)(saved_start - section_start)); |
| 5553 | /* Skip any zero terminators that directly follow. |
| 5554 | A corrupt section size could have loaded a whole |
| 5555 | slew of zero filled memory bytes. eg |
| 5556 | PR 17512: file: 070-19381-0.004. */ |
| 5557 | while (start < end && * start == 0) |
| 5558 | ++ start; |
| 5559 | continue; |
| 5560 | } |
| 5561 | |
| 5562 | if (length == 0xffffffff) |
| 5563 | { |
| 5564 | SAFE_BYTE_GET_AND_INC (length, start, 8, end); |
| 5565 | offset_size = 8; |
| 5566 | initial_length_size = 12; |
| 5567 | } |
| 5568 | else |
| 5569 | { |
| 5570 | offset_size = 4; |
| 5571 | initial_length_size = 4; |
| 5572 | } |
| 5573 | |
| 5574 | block_end = saved_start + length + initial_length_size; |
| 5575 | if (block_end > end || block_end < start) |
| 5576 | { |
| 5577 | warn ("Invalid length 0x%s in FDE at %#08lx\n", |
| 5578 | dwarf_vmatoa_1 (NULL, length, offset_size), |
| 5579 | (unsigned long) (saved_start - section_start)); |
| 5580 | block_end = end; |
| 5581 | } |
| 5582 | |
| 5583 | SAFE_BYTE_GET_AND_INC (cie_id, start, offset_size, end); |
| 5584 | |
| 5585 | if (is_eh ? (cie_id == 0) : ((offset_size == 4 && cie_id == DW_CIE_ID) |
| 5586 | || (offset_size == 8 && cie_id == DW64_CIE_ID))) |
| 5587 | { |
| 5588 | int version; |
| 5589 | unsigned int mreg; |
| 5590 | |
| 5591 | start = read_cie (start, end, &cie, &version, |
| 5592 | &augmentation_data_len, &augmentation_data); |
| 5593 | /* PR 17512: file: 027-135133-0.005. */ |
| 5594 | if (cie == NULL) |
| 5595 | break; |
| 5596 | |
| 5597 | fc = cie; |
| 5598 | fc->next = chunks; |
| 5599 | chunks = fc; |
| 5600 | fc->chunk_start = saved_start; |
| 5601 | mreg = max_regs > 0 ? max_regs - 1 : 0; |
| 5602 | if (mreg < fc->ra) |
| 5603 | mreg = fc->ra; |
| 5604 | if (frame_need_space (fc, mreg) < 0) |
| 5605 | break; |
| 5606 | if (fc->fde_encoding) |
| 5607 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); |
| 5608 | |
| 5609 | printf ("\n%08lx ", (unsigned long) (saved_start - section_start)); |
| 5610 | print_dwarf_vma (length, fc->ptr_size); |
| 5611 | print_dwarf_vma (cie_id, offset_size); |
| 5612 | |
| 5613 | if (do_debug_frames_interp) |
| 5614 | { |
| 5615 | printf ("CIE \"%s\" cf=%d df=%d ra=%d\n", fc->augmentation, |
| 5616 | fc->code_factor, fc->data_factor, fc->ra); |
| 5617 | } |
| 5618 | else |
| 5619 | { |
| 5620 | printf ("CIE\n"); |
| 5621 | printf (" Version: %d\n", version); |
| 5622 | printf (" Augmentation: \"%s\"\n", fc->augmentation); |
| 5623 | if (version >= 4) |
| 5624 | { |
| 5625 | printf (" Pointer Size: %u\n", fc->ptr_size); |
| 5626 | printf (" Segment Size: %u\n", fc->segment_size); |
| 5627 | } |
| 5628 | printf (" Code alignment factor: %u\n", fc->code_factor); |
| 5629 | printf (" Data alignment factor: %d\n", fc->data_factor); |
| 5630 | printf (" Return address column: %d\n", fc->ra); |
| 5631 | |
| 5632 | if (augmentation_data_len) |
| 5633 | { |
| 5634 | unsigned long i; |
| 5635 | |
| 5636 | printf (" Augmentation data: "); |
| 5637 | for (i = 0; i < augmentation_data_len; ++i) |
| 5638 | /* FIXME: If do_wide is FALSE, then we should |
| 5639 | add carriage returns at 80 columns... */ |
| 5640 | printf (" %02x", augmentation_data[i]); |
| 5641 | putchar ('\n'); |
| 5642 | } |
| 5643 | putchar ('\n'); |
| 5644 | } |
| 5645 | } |
| 5646 | else |
| 5647 | { |
| 5648 | unsigned char *look_for; |
| 5649 | static Frame_Chunk fde_fc; |
| 5650 | unsigned long segment_selector; |
| 5651 | |
| 5652 | if (is_eh) |
| 5653 | { |
| 5654 | dwarf_vma sign = (dwarf_vma) 1 << (offset_size * 8 - 1); |
| 5655 | look_for = start - 4 - ((cie_id ^ sign) - sign); |
| 5656 | } |
| 5657 | else |
| 5658 | look_for = section_start + cie_id; |
| 5659 | |
| 5660 | if (look_for <= saved_start) |
| 5661 | { |
| 5662 | for (cie = chunks; cie ; cie = cie->next) |
| 5663 | if (cie->chunk_start == look_for) |
| 5664 | break; |
| 5665 | } |
| 5666 | else |
| 5667 | { |
| 5668 | for (cie = forward_refs; cie ; cie = cie->next) |
| 5669 | if (cie->chunk_start == look_for) |
| 5670 | break; |
| 5671 | if (!cie) |
| 5672 | { |
| 5673 | unsigned int off_size; |
| 5674 | unsigned char *cie_scan; |
| 5675 | |
| 5676 | cie_scan = look_for; |
| 5677 | off_size = 4; |
| 5678 | SAFE_BYTE_GET_AND_INC (length, cie_scan, 4, end); |
| 5679 | if (length == 0xffffffff) |
| 5680 | { |
| 5681 | SAFE_BYTE_GET_AND_INC (length, cie_scan, 8, end); |
| 5682 | off_size = 8; |
| 5683 | } |
| 5684 | if (length != 0) |
| 5685 | { |
| 5686 | dwarf_vma c_id; |
| 5687 | |
| 5688 | SAFE_BYTE_GET_AND_INC (c_id, cie_scan, off_size, end); |
| 5689 | if (is_eh |
| 5690 | ? c_id == 0 |
| 5691 | : ((off_size == 4 && c_id == DW_CIE_ID) |
| 5692 | || (off_size == 8 && c_id == DW64_CIE_ID))) |
| 5693 | { |
| 5694 | int version; |
| 5695 | unsigned int mreg; |
| 5696 | |
| 5697 | read_cie (cie_scan, end, &cie, &version, |
| 5698 | &augmentation_data_len, &augmentation_data); |
| 5699 | /* PR 17512: file: 3450-2098-0.004. */ |
| 5700 | if (cie == NULL) |
| 5701 | { |
| 5702 | warn (_("Failed to read CIE information\n")); |
| 5703 | break; |
| 5704 | } |
| 5705 | cie->next = forward_refs; |
| 5706 | forward_refs = cie; |
| 5707 | cie->chunk_start = look_for; |
| 5708 | mreg = max_regs > 0 ? max_regs - 1 : 0; |
| 5709 | if (mreg < cie->ra) |
| 5710 | mreg = cie->ra; |
| 5711 | if (frame_need_space (cie, mreg) < 0) |
| 5712 | { |
| 5713 | warn (_("Invalid max register\n")); |
| 5714 | break; |
| 5715 | } |
| 5716 | if (cie->fde_encoding) |
| 5717 | encoded_ptr_size |
| 5718 | = size_of_encoded_value (cie->fde_encoding); |
| 5719 | } |
| 5720 | } |
| 5721 | } |
| 5722 | } |
| 5723 | |
| 5724 | fc = &fde_fc; |
| 5725 | memset (fc, 0, sizeof (Frame_Chunk)); |
| 5726 | |
| 5727 | if (!cie) |
| 5728 | { |
| 5729 | warn ("Invalid CIE pointer 0x%s in FDE at %#08lx\n", |
| 5730 | dwarf_vmatoa_1 (NULL, cie_id, offset_size), |
| 5731 | (unsigned long) (saved_start - section_start)); |
| 5732 | fc->ncols = 0; |
| 5733 | fc->col_type = (short int *) xmalloc (sizeof (short int)); |
| 5734 | fc->col_offset = (int *) xmalloc (sizeof (int)); |
| 5735 | if (frame_need_space (fc, max_regs > 0 ? max_regs - 1 : 0) < 0) |
| 5736 | { |
| 5737 | warn (_("Invalid max register\n")); |
| 5738 | break; |
| 5739 | } |
| 5740 | cie = fc; |
| 5741 | fc->augmentation = ""; |
| 5742 | fc->fde_encoding = 0; |
| 5743 | fc->ptr_size = eh_addr_size; |
| 5744 | fc->segment_size = 0; |
| 5745 | } |
| 5746 | else |
| 5747 | { |
| 5748 | fc->ncols = cie->ncols; |
| 5749 | fc->col_type = (short int *) xcmalloc (fc->ncols, sizeof (short int)); |
| 5750 | fc->col_offset = (int *) xcmalloc (fc->ncols, sizeof (int)); |
| 5751 | memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int)); |
| 5752 | memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int)); |
| 5753 | fc->augmentation = cie->augmentation; |
| 5754 | fc->ptr_size = cie->ptr_size; |
| 5755 | eh_addr_size = cie->ptr_size; |
| 5756 | fc->segment_size = cie->segment_size; |
| 5757 | fc->code_factor = cie->code_factor; |
| 5758 | fc->data_factor = cie->data_factor; |
| 5759 | fc->cfa_reg = cie->cfa_reg; |
| 5760 | fc->cfa_offset = cie->cfa_offset; |
| 5761 | fc->ra = cie->ra; |
| 5762 | if (frame_need_space (fc, max_regs > 0 ? max_regs - 1: 0) < 0) |
| 5763 | { |
| 5764 | warn (_("Invalid max register\n")); |
| 5765 | break; |
| 5766 | } |
| 5767 | fc->fde_encoding = cie->fde_encoding; |
| 5768 | } |
| 5769 | |
| 5770 | if (fc->fde_encoding) |
| 5771 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); |
| 5772 | |
| 5773 | segment_selector = 0; |
| 5774 | if (fc->segment_size) |
| 5775 | SAFE_BYTE_GET_AND_INC (segment_selector, start, fc->segment_size, end); |
| 5776 | |
| 5777 | fc->pc_begin = get_encoded_value (&start, fc->fde_encoding, section, end); |
| 5778 | |
| 5779 | /* FIXME: It appears that sometimes the final pc_range value is |
| 5780 | encoded in less than encoded_ptr_size bytes. See the x86_64 |
| 5781 | run of the "objcopy on compressed debug sections" test for an |
| 5782 | example of this. */ |
| 5783 | SAFE_BYTE_GET_AND_INC (fc->pc_range, start, encoded_ptr_size, end); |
| 5784 | |
| 5785 | if (cie->augmentation[0] == 'z') |
| 5786 | { |
| 5787 | augmentation_data_len = LEB (); |
| 5788 | augmentation_data = start; |
| 5789 | start += augmentation_data_len; |
| 5790 | /* PR 17512: file: 722-8446-0.004. */ |
| 5791 | if (start >= end || ((signed long) augmentation_data_len) < 0) |
| 5792 | { |
| 5793 | warn (_("Corrupt augmentation data length: %lx\n"), |
| 5794 | augmentation_data_len); |
| 5795 | start = end; |
| 5796 | augmentation_data = NULL; |
| 5797 | augmentation_data_len = 0; |
| 5798 | } |
| 5799 | } |
| 5800 | |
| 5801 | printf ("\n%08lx %s %s FDE cie=%08lx pc=", |
| 5802 | (unsigned long)(saved_start - section_start), |
| 5803 | dwarf_vmatoa_1 (NULL, length, fc->ptr_size), |
| 5804 | dwarf_vmatoa_1 (NULL, cie_id, offset_size), |
| 5805 | (unsigned long)(cie->chunk_start - section_start)); |
| 5806 | |
| 5807 | if (fc->segment_size) |
| 5808 | printf ("%04lx:", segment_selector); |
| 5809 | |
| 5810 | printf ("%s..%s\n", |
| 5811 | dwarf_vmatoa_1 (NULL, fc->pc_begin, fc->ptr_size), |
| 5812 | dwarf_vmatoa_1 (NULL, fc->pc_begin + fc->pc_range, fc->ptr_size)); |
| 5813 | |
| 5814 | if (! do_debug_frames_interp && augmentation_data_len) |
| 5815 | { |
| 5816 | unsigned long i; |
| 5817 | |
| 5818 | printf (" Augmentation data: "); |
| 5819 | for (i = 0; i < augmentation_data_len; ++i) |
| 5820 | printf (" %02x", augmentation_data[i]); |
| 5821 | putchar ('\n'); |
| 5822 | putchar ('\n'); |
| 5823 | } |
| 5824 | } |
| 5825 | |
| 5826 | /* At this point, fc is the current chunk, cie (if any) is set, and |
| 5827 | we're about to interpret instructions for the chunk. */ |
| 5828 | /* ??? At present we need to do this always, since this sizes the |
| 5829 | fc->col_type and fc->col_offset arrays, which we write into always. |
| 5830 | We should probably split the interpreted and non-interpreted bits |
| 5831 | into two different routines, since there's so much that doesn't |
| 5832 | really overlap between them. */ |
| 5833 | if (1 || do_debug_frames_interp) |
| 5834 | { |
| 5835 | /* Start by making a pass over the chunk, allocating storage |
| 5836 | and taking note of what registers are used. */ |
| 5837 | unsigned char *tmp = start; |
| 5838 | |
| 5839 | while (start < block_end) |
| 5840 | { |
| 5841 | unsigned int reg, op, opa; |
| 5842 | unsigned long temp; |
| 5843 | |
| 5844 | op = *start++; |
| 5845 | opa = op & 0x3f; |
| 5846 | if (op & 0xc0) |
| 5847 | op &= 0xc0; |
| 5848 | |
| 5849 | /* Warning: if you add any more cases to this switch, be |
| 5850 | sure to add them to the corresponding switch below. */ |
| 5851 | switch (op) |
| 5852 | { |
| 5853 | case DW_CFA_advance_loc: |
| 5854 | break; |
| 5855 | case DW_CFA_offset: |
| 5856 | LEB (); |
| 5857 | if (frame_need_space (fc, opa) >= 0) |
| 5858 | fc->col_type[opa] = DW_CFA_undefined; |
| 5859 | break; |
| 5860 | case DW_CFA_restore: |
| 5861 | if (frame_need_space (fc, opa) >= 0) |
| 5862 | fc->col_type[opa] = DW_CFA_undefined; |
| 5863 | break; |
| 5864 | case DW_CFA_set_loc: |
| 5865 | start += encoded_ptr_size; |
| 5866 | break; |
| 5867 | case DW_CFA_advance_loc1: |
| 5868 | start += 1; |
| 5869 | break; |
| 5870 | case DW_CFA_advance_loc2: |
| 5871 | start += 2; |
| 5872 | break; |
| 5873 | case DW_CFA_advance_loc4: |
| 5874 | start += 4; |
| 5875 | break; |
| 5876 | case DW_CFA_offset_extended: |
| 5877 | case DW_CFA_val_offset: |
| 5878 | reg = LEB (); LEB (); |
| 5879 | if (frame_need_space (fc, reg) >= 0) |
| 5880 | fc->col_type[reg] = DW_CFA_undefined; |
| 5881 | break; |
| 5882 | case DW_CFA_restore_extended: |
| 5883 | reg = LEB (); |
| 5884 | if (frame_need_space (fc, reg) >= 0) |
| 5885 | fc->col_type[reg] = DW_CFA_undefined; |
| 5886 | break; |
| 5887 | case DW_CFA_undefined: |
| 5888 | reg = LEB (); |
| 5889 | if (frame_need_space (fc, reg) >= 0) |
| 5890 | fc->col_type[reg] = DW_CFA_undefined; |
| 5891 | break; |
| 5892 | case DW_CFA_same_value: |
| 5893 | reg = LEB (); |
| 5894 | if (frame_need_space (fc, reg) >= 0) |
| 5895 | fc->col_type[reg] = DW_CFA_undefined; |
| 5896 | break; |
| 5897 | case DW_CFA_register: |
| 5898 | reg = LEB (); LEB (); |
| 5899 | if (frame_need_space (fc, reg) >= 0) |
| 5900 | fc->col_type[reg] = DW_CFA_undefined; |
| 5901 | break; |
| 5902 | case DW_CFA_def_cfa: |
| 5903 | LEB (); LEB (); |
| 5904 | break; |
| 5905 | case DW_CFA_def_cfa_register: |
| 5906 | LEB (); |
| 5907 | break; |
| 5908 | case DW_CFA_def_cfa_offset: |
| 5909 | LEB (); |
| 5910 | break; |
| 5911 | case DW_CFA_def_cfa_expression: |
| 5912 | temp = LEB (); |
| 5913 | if (start + temp < start) |
| 5914 | { |
| 5915 | warn (_("Corrupt CFA_def expression value: %lu\n"), temp); |
| 5916 | start = block_end; |
| 5917 | } |
| 5918 | else |
| 5919 | start += temp; |
| 5920 | break; |
| 5921 | case DW_CFA_expression: |
| 5922 | case DW_CFA_val_expression: |
| 5923 | reg = LEB (); |
| 5924 | temp = LEB (); |
| 5925 | if (start + temp < start) |
| 5926 | { |
| 5927 | /* PR 17512: file:306-192417-0.005. */ |
| 5928 | warn (_("Corrupt CFA expression value: %lu\n"), temp); |
| 5929 | start = block_end; |
| 5930 | } |
| 5931 | else |
| 5932 | start += temp; |
| 5933 | if (frame_need_space (fc, reg) >= 0) |
| 5934 | fc->col_type[reg] = DW_CFA_undefined; |
| 5935 | break; |
| 5936 | case DW_CFA_offset_extended_sf: |
| 5937 | case DW_CFA_val_offset_sf: |
| 5938 | reg = LEB (); SLEB (); |
| 5939 | if (frame_need_space (fc, reg) >= 0) |
| 5940 | fc->col_type[reg] = DW_CFA_undefined; |
| 5941 | break; |
| 5942 | case DW_CFA_def_cfa_sf: |
| 5943 | LEB (); SLEB (); |
| 5944 | break; |
| 5945 | case DW_CFA_def_cfa_offset_sf: |
| 5946 | SLEB (); |
| 5947 | break; |
| 5948 | case DW_CFA_MIPS_advance_loc8: |
| 5949 | start += 8; |
| 5950 | break; |
| 5951 | case DW_CFA_GNU_args_size: |
| 5952 | LEB (); |
| 5953 | break; |
| 5954 | case DW_CFA_GNU_negative_offset_extended: |
| 5955 | reg = LEB (); LEB (); |
| 5956 | if (frame_need_space (fc, reg) >= 0) |
| 5957 | fc->col_type[reg] = DW_CFA_undefined; |
| 5958 | break; |
| 5959 | default: |
| 5960 | break; |
| 5961 | } |
| 5962 | } |
| 5963 | start = tmp; |
| 5964 | } |
| 5965 | |
| 5966 | /* Now we know what registers are used, make a second pass over |
| 5967 | the chunk, this time actually printing out the info. */ |
| 5968 | |
| 5969 | while (start < block_end) |
| 5970 | { |
| 5971 | unsigned op, opa; |
| 5972 | unsigned long ul, reg, roffs; |
| 5973 | long l; |
| 5974 | dwarf_vma ofs; |
| 5975 | dwarf_vma vma; |
| 5976 | const char *reg_prefix = ""; |
| 5977 | |
| 5978 | op = *start++; |
| 5979 | opa = op & 0x3f; |
| 5980 | if (op & 0xc0) |
| 5981 | op &= 0xc0; |
| 5982 | |
| 5983 | /* Warning: if you add any more cases to this switch, be |
| 5984 | sure to add them to the corresponding switch above. */ |
| 5985 | switch (op) |
| 5986 | { |
| 5987 | case DW_CFA_advance_loc: |
| 5988 | if (do_debug_frames_interp) |
| 5989 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5990 | else |
| 5991 | printf (" DW_CFA_advance_loc: %d to %s\n", |
| 5992 | opa * fc->code_factor, |
| 5993 | dwarf_vmatoa_1 (NULL, |
| 5994 | fc->pc_begin + opa * fc->code_factor, |
| 5995 | fc->ptr_size)); |
| 5996 | fc->pc_begin += opa * fc->code_factor; |
| 5997 | break; |
| 5998 | |
| 5999 | case DW_CFA_offset: |
| 6000 | roffs = LEB (); |
| 6001 | if (opa >= (unsigned int) fc->ncols) |
| 6002 | reg_prefix = bad_reg; |
| 6003 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6004 | printf (" DW_CFA_offset: %s%s at cfa%+ld\n", |
| 6005 | reg_prefix, regname (opa, 0), |
| 6006 | roffs * fc->data_factor); |
| 6007 | if (*reg_prefix == '\0') |
| 6008 | { |
| 6009 | fc->col_type[opa] = DW_CFA_offset; |
| 6010 | fc->col_offset[opa] = roffs * fc->data_factor; |
| 6011 | } |
| 6012 | break; |
| 6013 | |
| 6014 | case DW_CFA_restore: |
| 6015 | if (opa >= (unsigned int) cie->ncols |
| 6016 | || opa >= (unsigned int) fc->ncols) |
| 6017 | reg_prefix = bad_reg; |
| 6018 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6019 | printf (" DW_CFA_restore: %s%s\n", |
| 6020 | reg_prefix, regname (opa, 0)); |
| 6021 | if (*reg_prefix == '\0') |
| 6022 | { |
| 6023 | fc->col_type[opa] = cie->col_type[opa]; |
| 6024 | fc->col_offset[opa] = cie->col_offset[opa]; |
| 6025 | if (do_debug_frames_interp |
| 6026 | && fc->col_type[opa] == DW_CFA_unreferenced) |
| 6027 | fc->col_type[opa] = DW_CFA_undefined; |
| 6028 | } |
| 6029 | break; |
| 6030 | |
| 6031 | case DW_CFA_set_loc: |
| 6032 | vma = get_encoded_value (&start, fc->fde_encoding, section, block_end); |
| 6033 | if (do_debug_frames_interp) |
| 6034 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 6035 | else |
| 6036 | printf (" DW_CFA_set_loc: %s\n", |
| 6037 | dwarf_vmatoa_1 (NULL, vma, fc->ptr_size)); |
| 6038 | fc->pc_begin = vma; |
| 6039 | break; |
| 6040 | |
| 6041 | case DW_CFA_advance_loc1: |
| 6042 | SAFE_BYTE_GET_AND_INC (ofs, start, 1, end); |
| 6043 | if (do_debug_frames_interp) |
| 6044 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 6045 | else |
| 6046 | printf (" DW_CFA_advance_loc1: %ld to %s\n", |
| 6047 | (unsigned long) (ofs * fc->code_factor), |
| 6048 | dwarf_vmatoa_1 (NULL, |
| 6049 | fc->pc_begin + ofs * fc->code_factor, |
| 6050 | fc->ptr_size)); |
| 6051 | fc->pc_begin += ofs * fc->code_factor; |
| 6052 | break; |
| 6053 | |
| 6054 | case DW_CFA_advance_loc2: |
| 6055 | SAFE_BYTE_GET_AND_INC (ofs, start, 2, block_end); |
| 6056 | if (do_debug_frames_interp) |
| 6057 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 6058 | else |
| 6059 | printf (" DW_CFA_advance_loc2: %ld to %s\n", |
| 6060 | (unsigned long) (ofs * fc->code_factor), |
| 6061 | dwarf_vmatoa_1 (NULL, |
| 6062 | fc->pc_begin + ofs * fc->code_factor, |
| 6063 | fc->ptr_size)); |
| 6064 | fc->pc_begin += ofs * fc->code_factor; |
| 6065 | break; |
| 6066 | |
| 6067 | case DW_CFA_advance_loc4: |
| 6068 | SAFE_BYTE_GET_AND_INC (ofs, start, 4, block_end); |
| 6069 | if (do_debug_frames_interp) |
| 6070 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 6071 | else |
| 6072 | printf (" DW_CFA_advance_loc4: %ld to %s\n", |
| 6073 | (unsigned long) (ofs * fc->code_factor), |
| 6074 | dwarf_vmatoa_1 (NULL, |
| 6075 | fc->pc_begin + ofs * fc->code_factor, |
| 6076 | fc->ptr_size)); |
| 6077 | fc->pc_begin += ofs * fc->code_factor; |
| 6078 | break; |
| 6079 | |
| 6080 | case DW_CFA_offset_extended: |
| 6081 | reg = LEB (); |
| 6082 | roffs = LEB (); |
| 6083 | if (reg >= (unsigned int) fc->ncols) |
| 6084 | reg_prefix = bad_reg; |
| 6085 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6086 | printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n", |
| 6087 | reg_prefix, regname (reg, 0), |
| 6088 | roffs * fc->data_factor); |
| 6089 | if (*reg_prefix == '\0') |
| 6090 | { |
| 6091 | fc->col_type[reg] = DW_CFA_offset; |
| 6092 | fc->col_offset[reg] = roffs * fc->data_factor; |
| 6093 | } |
| 6094 | break; |
| 6095 | |
| 6096 | case DW_CFA_val_offset: |
| 6097 | reg = LEB (); |
| 6098 | roffs = LEB (); |
| 6099 | if (reg >= (unsigned int) fc->ncols) |
| 6100 | reg_prefix = bad_reg; |
| 6101 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6102 | printf (" DW_CFA_val_offset: %s%s at cfa%+ld\n", |
| 6103 | reg_prefix, regname (reg, 0), |
| 6104 | roffs * fc->data_factor); |
| 6105 | if (*reg_prefix == '\0') |
| 6106 | { |
| 6107 | fc->col_type[reg] = DW_CFA_val_offset; |
| 6108 | fc->col_offset[reg] = roffs * fc->data_factor; |
| 6109 | } |
| 6110 | break; |
| 6111 | |
| 6112 | case DW_CFA_restore_extended: |
| 6113 | reg = LEB (); |
| 6114 | if (reg >= (unsigned int) cie->ncols |
| 6115 | || reg >= (unsigned int) fc->ncols) |
| 6116 | reg_prefix = bad_reg; |
| 6117 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6118 | printf (" DW_CFA_restore_extended: %s%s\n", |
| 6119 | reg_prefix, regname (reg, 0)); |
| 6120 | if (*reg_prefix == '\0') |
| 6121 | { |
| 6122 | fc->col_type[reg] = cie->col_type[reg]; |
| 6123 | fc->col_offset[reg] = cie->col_offset[reg]; |
| 6124 | } |
| 6125 | break; |
| 6126 | |
| 6127 | case DW_CFA_undefined: |
| 6128 | reg = LEB (); |
| 6129 | if (reg >= (unsigned int) fc->ncols) |
| 6130 | reg_prefix = bad_reg; |
| 6131 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6132 | printf (" DW_CFA_undefined: %s%s\n", |
| 6133 | reg_prefix, regname (reg, 0)); |
| 6134 | if (*reg_prefix == '\0') |
| 6135 | { |
| 6136 | fc->col_type[reg] = DW_CFA_undefined; |
| 6137 | fc->col_offset[reg] = 0; |
| 6138 | } |
| 6139 | break; |
| 6140 | |
| 6141 | case DW_CFA_same_value: |
| 6142 | reg = LEB (); |
| 6143 | if (reg >= (unsigned int) fc->ncols) |
| 6144 | reg_prefix = bad_reg; |
| 6145 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6146 | printf (" DW_CFA_same_value: %s%s\n", |
| 6147 | reg_prefix, regname (reg, 0)); |
| 6148 | if (*reg_prefix == '\0') |
| 6149 | { |
| 6150 | fc->col_type[reg] = DW_CFA_same_value; |
| 6151 | fc->col_offset[reg] = 0; |
| 6152 | } |
| 6153 | break; |
| 6154 | |
| 6155 | case DW_CFA_register: |
| 6156 | reg = LEB (); |
| 6157 | roffs = LEB (); |
| 6158 | if (reg >= (unsigned int) fc->ncols) |
| 6159 | reg_prefix = bad_reg; |
| 6160 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6161 | { |
| 6162 | printf (" DW_CFA_register: %s%s in ", |
| 6163 | reg_prefix, regname (reg, 0)); |
| 6164 | puts (regname (roffs, 0)); |
| 6165 | } |
| 6166 | if (*reg_prefix == '\0') |
| 6167 | { |
| 6168 | fc->col_type[reg] = DW_CFA_register; |
| 6169 | fc->col_offset[reg] = roffs; |
| 6170 | } |
| 6171 | break; |
| 6172 | |
| 6173 | case DW_CFA_remember_state: |
| 6174 | if (! do_debug_frames_interp) |
| 6175 | printf (" DW_CFA_remember_state\n"); |
| 6176 | rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk)); |
| 6177 | rs->cfa_offset = fc->cfa_offset; |
| 6178 | rs->cfa_reg = fc->cfa_reg; |
| 6179 | rs->ra = fc->ra; |
| 6180 | rs->cfa_exp = fc->cfa_exp; |
| 6181 | rs->ncols = fc->ncols; |
| 6182 | rs->col_type = (short int *) xcmalloc (rs->ncols, |
| 6183 | sizeof (* rs->col_type)); |
| 6184 | rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (* rs->col_offset)); |
| 6185 | memcpy (rs->col_type, fc->col_type, rs->ncols * sizeof (* fc->col_type)); |
| 6186 | memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (* fc->col_offset)); |
| 6187 | rs->next = remembered_state; |
| 6188 | remembered_state = rs; |
| 6189 | break; |
| 6190 | |
| 6191 | case DW_CFA_restore_state: |
| 6192 | if (! do_debug_frames_interp) |
| 6193 | printf (" DW_CFA_restore_state\n"); |
| 6194 | rs = remembered_state; |
| 6195 | if (rs) |
| 6196 | { |
| 6197 | remembered_state = rs->next; |
| 6198 | fc->cfa_offset = rs->cfa_offset; |
| 6199 | fc->cfa_reg = rs->cfa_reg; |
| 6200 | fc->ra = rs->ra; |
| 6201 | fc->cfa_exp = rs->cfa_exp; |
| 6202 | if (frame_need_space (fc, rs->ncols - 1) < 0) |
| 6203 | { |
| 6204 | warn (_("Invalid column number in saved frame state")); |
| 6205 | fc->ncols = 0; |
| 6206 | break; |
| 6207 | } |
| 6208 | memcpy (fc->col_type, rs->col_type, rs->ncols * sizeof (* rs->col_type)); |
| 6209 | memcpy (fc->col_offset, rs->col_offset, |
| 6210 | rs->ncols * sizeof (* rs->col_offset)); |
| 6211 | free (rs->col_type); |
| 6212 | free (rs->col_offset); |
| 6213 | free (rs); |
| 6214 | } |
| 6215 | else if (do_debug_frames_interp) |
| 6216 | printf ("Mismatched DW_CFA_restore_state\n"); |
| 6217 | break; |
| 6218 | |
| 6219 | case DW_CFA_def_cfa: |
| 6220 | fc->cfa_reg = LEB (); |
| 6221 | fc->cfa_offset = LEB (); |
| 6222 | fc->cfa_exp = 0; |
| 6223 | if (! do_debug_frames_interp) |
| 6224 | printf (" DW_CFA_def_cfa: %s ofs %d\n", |
| 6225 | regname (fc->cfa_reg, 0), fc->cfa_offset); |
| 6226 | break; |
| 6227 | |
| 6228 | case DW_CFA_def_cfa_register: |
| 6229 | fc->cfa_reg = LEB (); |
| 6230 | fc->cfa_exp = 0; |
| 6231 | if (! do_debug_frames_interp) |
| 6232 | printf (" DW_CFA_def_cfa_register: %s\n", |
| 6233 | regname (fc->cfa_reg, 0)); |
| 6234 | break; |
| 6235 | |
| 6236 | case DW_CFA_def_cfa_offset: |
| 6237 | fc->cfa_offset = LEB (); |
| 6238 | if (! do_debug_frames_interp) |
| 6239 | printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset); |
| 6240 | break; |
| 6241 | |
| 6242 | case DW_CFA_nop: |
| 6243 | if (! do_debug_frames_interp) |
| 6244 | printf (" DW_CFA_nop\n"); |
| 6245 | break; |
| 6246 | |
| 6247 | case DW_CFA_def_cfa_expression: |
| 6248 | ul = LEB (); |
| 6249 | if (start >= block_end || start + ul > block_end || start + ul < start) |
| 6250 | { |
| 6251 | printf (_(" DW_CFA_def_cfa_expression: <corrupt len %lu>\n"), ul); |
| 6252 | break; |
| 6253 | } |
| 6254 | if (! do_debug_frames_interp) |
| 6255 | { |
| 6256 | printf (" DW_CFA_def_cfa_expression ("); |
| 6257 | decode_location_expression (start, eh_addr_size, 0, -1, |
| 6258 | ul, 0, section); |
| 6259 | printf (")\n"); |
| 6260 | } |
| 6261 | fc->cfa_exp = 1; |
| 6262 | start += ul; |
| 6263 | break; |
| 6264 | |
| 6265 | case DW_CFA_expression: |
| 6266 | reg = LEB (); |
| 6267 | ul = LEB (); |
| 6268 | if (reg >= (unsigned int) fc->ncols) |
| 6269 | reg_prefix = bad_reg; |
| 6270 | /* PR 17512: file: 069-133014-0.006. */ |
| 6271 | /* PR 17512: file: 98c02eb4. */ |
| 6272 | if (start >= block_end || start + ul > block_end || start + ul < start) |
| 6273 | { |
| 6274 | printf (_(" DW_CFA_expression: <corrupt len %lu>\n"), ul); |
| 6275 | break; |
| 6276 | } |
| 6277 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6278 | { |
| 6279 | printf (" DW_CFA_expression: %s%s (", |
| 6280 | reg_prefix, regname (reg, 0)); |
| 6281 | decode_location_expression (start, eh_addr_size, 0, -1, |
| 6282 | ul, 0, section); |
| 6283 | printf (")\n"); |
| 6284 | } |
| 6285 | if (*reg_prefix == '\0') |
| 6286 | fc->col_type[reg] = DW_CFA_expression; |
| 6287 | start += ul; |
| 6288 | break; |
| 6289 | |
| 6290 | case DW_CFA_val_expression: |
| 6291 | reg = LEB (); |
| 6292 | ul = LEB (); |
| 6293 | if (reg >= (unsigned int) fc->ncols) |
| 6294 | reg_prefix = bad_reg; |
| 6295 | if (start >= block_end || start + ul > block_end || start + ul < start) |
| 6296 | { |
| 6297 | printf (" DW_CFA_val_expression: <corrupt len %lu>\n", ul); |
| 6298 | break; |
| 6299 | } |
| 6300 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6301 | { |
| 6302 | printf (" DW_CFA_val_expression: %s%s (", |
| 6303 | reg_prefix, regname (reg, 0)); |
| 6304 | decode_location_expression (start, eh_addr_size, 0, -1, |
| 6305 | ul, 0, section); |
| 6306 | printf (")\n"); |
| 6307 | } |
| 6308 | if (*reg_prefix == '\0') |
| 6309 | fc->col_type[reg] = DW_CFA_val_expression; |
| 6310 | start += ul; |
| 6311 | break; |
| 6312 | |
| 6313 | case DW_CFA_offset_extended_sf: |
| 6314 | reg = LEB (); |
| 6315 | l = SLEB (); |
| 6316 | if (frame_need_space (fc, reg) < 0) |
| 6317 | reg_prefix = bad_reg; |
| 6318 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6319 | printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n", |
| 6320 | reg_prefix, regname (reg, 0), |
| 6321 | l * fc->data_factor); |
| 6322 | if (*reg_prefix == '\0') |
| 6323 | { |
| 6324 | fc->col_type[reg] = DW_CFA_offset; |
| 6325 | fc->col_offset[reg] = l * fc->data_factor; |
| 6326 | } |
| 6327 | break; |
| 6328 | |
| 6329 | case DW_CFA_val_offset_sf: |
| 6330 | reg = LEB (); |
| 6331 | l = SLEB (); |
| 6332 | if (frame_need_space (fc, reg) < 0) |
| 6333 | reg_prefix = bad_reg; |
| 6334 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6335 | printf (" DW_CFA_val_offset_sf: %s%s at cfa%+ld\n", |
| 6336 | reg_prefix, regname (reg, 0), |
| 6337 | l * fc->data_factor); |
| 6338 | if (*reg_prefix == '\0') |
| 6339 | { |
| 6340 | fc->col_type[reg] = DW_CFA_val_offset; |
| 6341 | fc->col_offset[reg] = l * fc->data_factor; |
| 6342 | } |
| 6343 | break; |
| 6344 | |
| 6345 | case DW_CFA_def_cfa_sf: |
| 6346 | fc->cfa_reg = LEB (); |
| 6347 | fc->cfa_offset = SLEB (); |
| 6348 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; |
| 6349 | fc->cfa_exp = 0; |
| 6350 | if (! do_debug_frames_interp) |
| 6351 | printf (" DW_CFA_def_cfa_sf: %s ofs %d\n", |
| 6352 | regname (fc->cfa_reg, 0), fc->cfa_offset); |
| 6353 | break; |
| 6354 | |
| 6355 | case DW_CFA_def_cfa_offset_sf: |
| 6356 | fc->cfa_offset = SLEB (); |
| 6357 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; |
| 6358 | if (! do_debug_frames_interp) |
| 6359 | printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset); |
| 6360 | break; |
| 6361 | |
| 6362 | case DW_CFA_MIPS_advance_loc8: |
| 6363 | SAFE_BYTE_GET_AND_INC (ofs, start, 8, block_end); |
| 6364 | if (do_debug_frames_interp) |
| 6365 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 6366 | else |
| 6367 | printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n", |
| 6368 | (unsigned long) (ofs * fc->code_factor), |
| 6369 | dwarf_vmatoa_1 (NULL, |
| 6370 | fc->pc_begin + ofs * fc->code_factor, |
| 6371 | fc->ptr_size)); |
| 6372 | fc->pc_begin += ofs * fc->code_factor; |
| 6373 | break; |
| 6374 | |
| 6375 | case DW_CFA_GNU_window_save: |
| 6376 | if (! do_debug_frames_interp) |
| 6377 | printf (" DW_CFA_GNU_window_save\n"); |
| 6378 | break; |
| 6379 | |
| 6380 | case DW_CFA_GNU_args_size: |
| 6381 | ul = LEB (); |
| 6382 | if (! do_debug_frames_interp) |
| 6383 | printf (" DW_CFA_GNU_args_size: %ld\n", ul); |
| 6384 | break; |
| 6385 | |
| 6386 | case DW_CFA_GNU_negative_offset_extended: |
| 6387 | reg = LEB (); |
| 6388 | l = - LEB (); |
| 6389 | if (frame_need_space (fc, reg) < 0) |
| 6390 | reg_prefix = bad_reg; |
| 6391 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6392 | printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n", |
| 6393 | reg_prefix, regname (reg, 0), |
| 6394 | l * fc->data_factor); |
| 6395 | if (*reg_prefix == '\0') |
| 6396 | { |
| 6397 | fc->col_type[reg] = DW_CFA_offset; |
| 6398 | fc->col_offset[reg] = l * fc->data_factor; |
| 6399 | } |
| 6400 | break; |
| 6401 | |
| 6402 | default: |
| 6403 | if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user) |
| 6404 | printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op); |
| 6405 | else |
| 6406 | warn (_("Unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op); |
| 6407 | start = block_end; |
| 6408 | } |
| 6409 | } |
| 6410 | |
| 6411 | if (do_debug_frames_interp) |
| 6412 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 6413 | |
| 6414 | start = block_end; |
| 6415 | eh_addr_size = saved_eh_addr_size; |
| 6416 | } |
| 6417 | |
| 6418 | printf ("\n"); |
| 6419 | |
| 6420 | return 1; |
| 6421 | } |
| 6422 | |
| 6423 | #undef GET |
| 6424 | #undef LEB |
| 6425 | #undef SLEB |
| 6426 | |
| 6427 | static int |
| 6428 | display_gdb_index (struct dwarf_section *section, |
| 6429 | void *file ATTRIBUTE_UNUSED) |
| 6430 | { |
| 6431 | unsigned char *start = section->start; |
| 6432 | uint32_t version; |
| 6433 | uint32_t cu_list_offset, tu_list_offset; |
| 6434 | uint32_t address_table_offset, symbol_table_offset, constant_pool_offset; |
| 6435 | unsigned int cu_list_elements, tu_list_elements; |
| 6436 | unsigned int address_table_size, symbol_table_slots; |
| 6437 | unsigned char *cu_list, *tu_list; |
| 6438 | unsigned char *address_table, *symbol_table, *constant_pool; |
| 6439 | unsigned int i; |
| 6440 | |
| 6441 | /* The documentation for the format of this file is in gdb/dwarf2read.c. */ |
| 6442 | |
| 6443 | printf (_("Contents of the %s section:\n"), section->name); |
| 6444 | |
| 6445 | if (section->size < 6 * sizeof (uint32_t)) |
| 6446 | { |
| 6447 | warn (_("Truncated header in the %s section.\n"), section->name); |
| 6448 | return 0; |
| 6449 | } |
| 6450 | |
| 6451 | version = byte_get_little_endian (start, 4); |
| 6452 | printf (_("Version %ld\n"), (long) version); |
| 6453 | |
| 6454 | /* Prior versions are obsolete, and future versions may not be |
| 6455 | backwards compatible. */ |
| 6456 | if (version < 3 || version > 8) |
| 6457 | { |
| 6458 | warn (_("Unsupported version %lu.\n"), (unsigned long) version); |
| 6459 | return 0; |
| 6460 | } |
| 6461 | if (version < 4) |
| 6462 | warn (_("The address table data in version 3 may be wrong.\n")); |
| 6463 | if (version < 5) |
| 6464 | warn (_("Version 4 does not support case insensitive lookups.\n")); |
| 6465 | if (version < 6) |
| 6466 | warn (_("Version 5 does not include inlined functions.\n")); |
| 6467 | if (version < 7) |
| 6468 | warn (_("Version 6 does not include symbol attributes.\n")); |
| 6469 | /* Version 7 indices generated by Gold have bad type unit references, |
| 6470 | PR binutils/15021. But we don't know if the index was generated by |
| 6471 | Gold or not, so to avoid worrying users with gdb-generated indices |
| 6472 | we say nothing for version 7 here. */ |
| 6473 | |
| 6474 | cu_list_offset = byte_get_little_endian (start + 4, 4); |
| 6475 | tu_list_offset = byte_get_little_endian (start + 8, 4); |
| 6476 | address_table_offset = byte_get_little_endian (start + 12, 4); |
| 6477 | symbol_table_offset = byte_get_little_endian (start + 16, 4); |
| 6478 | constant_pool_offset = byte_get_little_endian (start + 20, 4); |
| 6479 | |
| 6480 | if (cu_list_offset > section->size |
| 6481 | || tu_list_offset > section->size |
| 6482 | || address_table_offset > section->size |
| 6483 | || symbol_table_offset > section->size |
| 6484 | || constant_pool_offset > section->size) |
| 6485 | { |
| 6486 | warn (_("Corrupt header in the %s section.\n"), section->name); |
| 6487 | return 0; |
| 6488 | } |
| 6489 | |
| 6490 | /* PR 17531: file: 418d0a8a. */ |
| 6491 | if (tu_list_offset < cu_list_offset) |
| 6492 | { |
| 6493 | warn (_("TU offset (%x) is less than CU offset (%x)\n"), |
| 6494 | tu_list_offset, cu_list_offset); |
| 6495 | return 0; |
| 6496 | } |
| 6497 | |
| 6498 | cu_list_elements = (tu_list_offset - cu_list_offset) / 8; |
| 6499 | |
| 6500 | if (address_table_offset < tu_list_offset) |
| 6501 | { |
| 6502 | warn (_("Address table offset (%x) is less than TU offset (%x)\n"), |
| 6503 | address_table_offset, tu_list_offset); |
| 6504 | return 0; |
| 6505 | } |
| 6506 | |
| 6507 | tu_list_elements = (address_table_offset - tu_list_offset) / 8; |
| 6508 | |
| 6509 | /* PR 17531: file: 18a47d3d. */ |
| 6510 | if (symbol_table_offset < address_table_offset) |
| 6511 | { |
| 6512 | warn (_("Symbol table offset (%xl) is less then Address table offset (%x)\n"), |
| 6513 | symbol_table_offset, address_table_offset); |
| 6514 | return 0; |
| 6515 | } |
| 6516 | |
| 6517 | address_table_size = symbol_table_offset - address_table_offset; |
| 6518 | |
| 6519 | if (constant_pool_offset < symbol_table_offset) |
| 6520 | { |
| 6521 | warn (_("Constant pool offset (%x) is less than symbol table offset (%x)\n"), |
| 6522 | constant_pool_offset, symbol_table_offset); |
| 6523 | return 0; |
| 6524 | } |
| 6525 | |
| 6526 | symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8; |
| 6527 | |
| 6528 | cu_list = start + cu_list_offset; |
| 6529 | tu_list = start + tu_list_offset; |
| 6530 | address_table = start + address_table_offset; |
| 6531 | symbol_table = start + symbol_table_offset; |
| 6532 | constant_pool = start + constant_pool_offset; |
| 6533 | |
| 6534 | if (address_table + address_table_size * (2 + 8 + 4) > section->start + section->size) |
| 6535 | { |
| 6536 | warn (_("Address table extends beyond end of section. %x"), address_table_size); |
| 6537 | return 0; |
| 6538 | } |
| 6539 | |
| 6540 | printf (_("\nCU table:\n")); |
| 6541 | for (i = 0; i < cu_list_elements; i += 2) |
| 6542 | { |
| 6543 | uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8); |
| 6544 | uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8); |
| 6545 | |
| 6546 | printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2, |
| 6547 | (unsigned long) cu_offset, |
| 6548 | (unsigned long) (cu_offset + cu_length - 1)); |
| 6549 | } |
| 6550 | |
| 6551 | printf (_("\nTU table:\n")); |
| 6552 | for (i = 0; i < tu_list_elements; i += 3) |
| 6553 | { |
| 6554 | uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8); |
| 6555 | uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8); |
| 6556 | uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8); |
| 6557 | |
| 6558 | printf (_("[%3u] 0x%lx 0x%lx "), i / 3, |
| 6559 | (unsigned long) tu_offset, |
| 6560 | (unsigned long) type_offset); |
| 6561 | print_dwarf_vma (signature, 8); |
| 6562 | printf ("\n"); |
| 6563 | } |
| 6564 | |
| 6565 | printf (_("\nAddress table:\n")); |
| 6566 | for (i = 0; i < address_table_size && i <= address_table_size - (2 * 8 + 4); |
| 6567 | i += 2 * 8 + 4) |
| 6568 | { |
| 6569 | uint64_t low = byte_get_little_endian (address_table + i, 8); |
| 6570 | uint64_t high = byte_get_little_endian (address_table + i + 8, 8); |
| 6571 | uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4); |
| 6572 | |
| 6573 | print_dwarf_vma (low, 8); |
| 6574 | print_dwarf_vma (high, 8); |
| 6575 | printf (_("%lu\n"), (unsigned long) cu_index); |
| 6576 | } |
| 6577 | |
| 6578 | printf (_("\nSymbol table:\n")); |
| 6579 | for (i = 0; i < symbol_table_slots; ++i) |
| 6580 | { |
| 6581 | uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4); |
| 6582 | uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4); |
| 6583 | uint32_t num_cus, cu; |
| 6584 | |
| 6585 | if (name_offset != 0 |
| 6586 | || cu_vector_offset != 0) |
| 6587 | { |
| 6588 | unsigned int j; |
| 6589 | |
| 6590 | /* PR 17531: file: 5b7b07ad. */ |
| 6591 | if (constant_pool + name_offset < constant_pool |
| 6592 | || constant_pool + name_offset >= section->start + section->size) |
| 6593 | { |
| 6594 | printf (_("[%3u] <corrupt offset: %x>"), i, name_offset); |
| 6595 | warn (_("Corrupt name offset of 0x%x found for symbol table slot %d\n"), |
| 6596 | name_offset, i); |
| 6597 | } |
| 6598 | else |
| 6599 | printf ("[%3u] %.*s:", i, |
| 6600 | (int) (section->size - (constant_pool_offset + name_offset)), |
| 6601 | constant_pool + name_offset); |
| 6602 | |
| 6603 | if (constant_pool + cu_vector_offset < constant_pool |
| 6604 | || constant_pool + cu_vector_offset >= section->start + section->size) |
| 6605 | { |
| 6606 | printf (_("<invalid CU vector offset: %x>\n"), cu_vector_offset); |
| 6607 | warn (_("Corrupt CU vector offset of 0x%x found for symbol table slot %d\n"), |
| 6608 | cu_vector_offset, i); |
| 6609 | continue; |
| 6610 | } |
| 6611 | else |
| 6612 | num_cus = byte_get_little_endian (constant_pool + cu_vector_offset, 4); |
| 6613 | |
| 6614 | if (num_cus * 4 < num_cus |
| 6615 | || constant_pool + cu_vector_offset + 4 + num_cus * 4 >= |
| 6616 | section->start + section->size) |
| 6617 | { |
| 6618 | printf ("<invalid number of CUs: %d>\n", num_cus); |
| 6619 | warn (_("Invalid number of CUs (0x%x) for symbol table slot %d\n"), |
| 6620 | num_cus, i); |
| 6621 | continue; |
| 6622 | } |
| 6623 | |
| 6624 | if (num_cus > 1) |
| 6625 | printf ("\n"); |
| 6626 | for (j = 0; j < num_cus; ++j) |
| 6627 | { |
| 6628 | int is_static; |
| 6629 | gdb_index_symbol_kind kind; |
| 6630 | |
| 6631 | cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4); |
| 6632 | is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (cu); |
| 6633 | kind = GDB_INDEX_SYMBOL_KIND_VALUE (cu); |
| 6634 | cu = GDB_INDEX_CU_VALUE (cu); |
| 6635 | /* Convert to TU number if it's for a type unit. */ |
| 6636 | if (cu >= cu_list_elements / 2) |
| 6637 | printf ("%cT%lu", num_cus > 1 ? '\t' : ' ', |
| 6638 | (unsigned long) (cu - cu_list_elements / 2)); |
| 6639 | else |
| 6640 | printf ("%c%lu", num_cus > 1 ? '\t' : ' ', (unsigned long) cu); |
| 6641 | |
| 6642 | printf (" [%s, %s]", |
| 6643 | is_static ? _("static") : _("global"), |
| 6644 | get_gdb_index_symbol_kind_name (kind)); |
| 6645 | if (num_cus > 1) |
| 6646 | printf ("\n"); |
| 6647 | } |
| 6648 | if (num_cus <= 1) |
| 6649 | printf ("\n"); |
| 6650 | } |
| 6651 | } |
| 6652 | |
| 6653 | return 1; |
| 6654 | } |
| 6655 | |
| 6656 | /* Pre-allocate enough space for the CU/TU sets needed. */ |
| 6657 | |
| 6658 | static void |
| 6659 | prealloc_cu_tu_list (unsigned int nshndx) |
| 6660 | { |
| 6661 | if (shndx_pool == NULL) |
| 6662 | { |
| 6663 | shndx_pool_size = nshndx; |
| 6664 | shndx_pool_used = 0; |
| 6665 | shndx_pool = (unsigned int *) xcmalloc (shndx_pool_size, |
| 6666 | sizeof (unsigned int)); |
| 6667 | } |
| 6668 | else |
| 6669 | { |
| 6670 | shndx_pool_size = shndx_pool_used + nshndx; |
| 6671 | shndx_pool = (unsigned int *) xcrealloc (shndx_pool, shndx_pool_size, |
| 6672 | sizeof (unsigned int)); |
| 6673 | } |
| 6674 | } |
| 6675 | |
| 6676 | static void |
| 6677 | add_shndx_to_cu_tu_entry (unsigned int shndx) |
| 6678 | { |
| 6679 | if (shndx_pool_used >= shndx_pool_size) |
| 6680 | { |
| 6681 | error (_("Internal error: out of space in the shndx pool.\n")); |
| 6682 | return; |
| 6683 | } |
| 6684 | shndx_pool [shndx_pool_used++] = shndx; |
| 6685 | } |
| 6686 | |
| 6687 | static void |
| 6688 | end_cu_tu_entry (void) |
| 6689 | { |
| 6690 | if (shndx_pool_used >= shndx_pool_size) |
| 6691 | { |
| 6692 | error (_("Internal error: out of space in the shndx pool.\n")); |
| 6693 | return; |
| 6694 | } |
| 6695 | shndx_pool [shndx_pool_used++] = 0; |
| 6696 | } |
| 6697 | |
| 6698 | /* Return the short name of a DWARF section given by a DW_SECT enumerator. */ |
| 6699 | |
| 6700 | static const char * |
| 6701 | get_DW_SECT_short_name (unsigned int dw_sect) |
| 6702 | { |
| 6703 | static char buf[16]; |
| 6704 | |
| 6705 | switch (dw_sect) |
| 6706 | { |
| 6707 | case DW_SECT_INFO: |
| 6708 | return "info"; |
| 6709 | case DW_SECT_TYPES: |
| 6710 | return "types"; |
| 6711 | case DW_SECT_ABBREV: |
| 6712 | return "abbrev"; |
| 6713 | case DW_SECT_LINE: |
| 6714 | return "line"; |
| 6715 | case DW_SECT_LOC: |
| 6716 | return "loc"; |
| 6717 | case DW_SECT_STR_OFFSETS: |
| 6718 | return "str_off"; |
| 6719 | case DW_SECT_MACINFO: |
| 6720 | return "macinfo"; |
| 6721 | case DW_SECT_MACRO: |
| 6722 | return "macro"; |
| 6723 | default: |
| 6724 | break; |
| 6725 | } |
| 6726 | |
| 6727 | snprintf (buf, sizeof (buf), "%d", dw_sect); |
| 6728 | return buf; |
| 6729 | } |
| 6730 | |
| 6731 | /* Process a CU or TU index. If DO_DISPLAY is true, print the contents. |
| 6732 | These sections are extensions for Fission. |
| 6733 | See http://gcc.gnu.org/wiki/DebugFissionDWP. */ |
| 6734 | |
| 6735 | static int |
| 6736 | process_cu_tu_index (struct dwarf_section *section, int do_display) |
| 6737 | { |
| 6738 | unsigned char *phdr = section->start; |
| 6739 | unsigned char *limit = phdr + section->size; |
| 6740 | unsigned char *phash; |
| 6741 | unsigned char *pindex; |
| 6742 | unsigned char *ppool; |
| 6743 | unsigned int version; |
| 6744 | unsigned int ncols = 0; |
| 6745 | unsigned int nused; |
| 6746 | unsigned int nslots; |
| 6747 | unsigned int i; |
| 6748 | unsigned int j; |
| 6749 | dwarf_vma signature_high; |
| 6750 | dwarf_vma signature_low; |
| 6751 | char buf[64]; |
| 6752 | |
| 6753 | /* PR 17512: file: 002-168123-0.004. */ |
| 6754 | if (phdr == NULL) |
| 6755 | { |
| 6756 | warn (_("Section %s is empty\n"), section->name); |
| 6757 | return 0; |
| 6758 | } |
| 6759 | /* PR 17512: file: 002-376-0.004. */ |
| 6760 | if (section->size < 24) |
| 6761 | { |
| 6762 | warn (_("Section %s is too small to contain a CU/TU header"), |
| 6763 | section->name); |
| 6764 | return 0; |
| 6765 | } |
| 6766 | |
| 6767 | SAFE_BYTE_GET (version, phdr, 4, limit); |
| 6768 | if (version >= 2) |
| 6769 | SAFE_BYTE_GET (ncols, phdr + 4, 4, limit); |
| 6770 | SAFE_BYTE_GET (nused, phdr + 8, 4, limit); |
| 6771 | SAFE_BYTE_GET (nslots, phdr + 12, 4, limit); |
| 6772 | |
| 6773 | phash = phdr + 16; |
| 6774 | pindex = phash + nslots * 8; |
| 6775 | ppool = pindex + nslots * 4; |
| 6776 | |
| 6777 | if (do_display) |
| 6778 | { |
| 6779 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 6780 | printf (_(" Version: %d\n"), version); |
| 6781 | if (version >= 2) |
| 6782 | printf (_(" Number of columns: %d\n"), ncols); |
| 6783 | printf (_(" Number of used entries: %d\n"), nused); |
| 6784 | printf (_(" Number of slots: %d\n\n"), nslots); |
| 6785 | } |
| 6786 | |
| 6787 | if (ppool > limit) |
| 6788 | { |
| 6789 | warn (_("Section %s too small for %d hash table entries\n"), |
| 6790 | section->name, nslots); |
| 6791 | return 0; |
| 6792 | } |
| 6793 | |
| 6794 | if (version == 1) |
| 6795 | { |
| 6796 | if (!do_display) |
| 6797 | prealloc_cu_tu_list ((limit - ppool) / 4); |
| 6798 | for (i = 0; i < nslots; i++) |
| 6799 | { |
| 6800 | unsigned char *shndx_list; |
| 6801 | unsigned int shndx; |
| 6802 | |
| 6803 | SAFE_BYTE_GET64 (phash, &signature_high, &signature_low, limit); |
| 6804 | if (signature_high != 0 || signature_low != 0) |
| 6805 | { |
| 6806 | SAFE_BYTE_GET (j, pindex, 4, limit); |
| 6807 | shndx_list = ppool + j * 4; |
| 6808 | if (do_display) |
| 6809 | printf (_(" [%3d] Signature: 0x%s Sections: "), |
| 6810 | i, dwarf_vmatoa64 (signature_high, signature_low, |
| 6811 | buf, sizeof (buf))); |
| 6812 | for (;;) |
| 6813 | { |
| 6814 | if (shndx_list >= limit) |
| 6815 | { |
| 6816 | warn (_("Section %s too small for shndx pool\n"), |
| 6817 | section->name); |
| 6818 | return 0; |
| 6819 | } |
| 6820 | SAFE_BYTE_GET (shndx, shndx_list, 4, limit); |
| 6821 | if (shndx == 0) |
| 6822 | break; |
| 6823 | if (do_display) |
| 6824 | printf (" %d", shndx); |
| 6825 | else |
| 6826 | add_shndx_to_cu_tu_entry (shndx); |
| 6827 | shndx_list += 4; |
| 6828 | } |
| 6829 | if (do_display) |
| 6830 | printf ("\n"); |
| 6831 | else |
| 6832 | end_cu_tu_entry (); |
| 6833 | } |
| 6834 | phash += 8; |
| 6835 | pindex += 4; |
| 6836 | } |
| 6837 | } |
| 6838 | else if (version == 2) |
| 6839 | { |
| 6840 | unsigned int val; |
| 6841 | unsigned int dw_sect; |
| 6842 | unsigned char *ph = phash; |
| 6843 | unsigned char *pi = pindex; |
| 6844 | unsigned char *poffsets = ppool + ncols * 4; |
| 6845 | unsigned char *psizes = poffsets + nused * ncols * 4; |
| 6846 | unsigned char *pend = psizes + nused * ncols * 4; |
| 6847 | bfd_boolean is_tu_index; |
| 6848 | struct cu_tu_set *this_set = NULL; |
| 6849 | unsigned int row; |
| 6850 | unsigned char *prow; |
| 6851 | |
| 6852 | is_tu_index = strcmp (section->name, ".debug_tu_index") == 0; |
| 6853 | |
| 6854 | if (pend > limit) |
| 6855 | { |
| 6856 | warn (_("Section %s too small for offset and size tables\n"), |
| 6857 | section->name); |
| 6858 | return 0; |
| 6859 | } |
| 6860 | |
| 6861 | if (do_display) |
| 6862 | { |
| 6863 | printf (_(" Offset table\n")); |
| 6864 | printf (" slot %-16s ", |
| 6865 | is_tu_index ? _("signature") : _("dwo_id")); |
| 6866 | } |
| 6867 | else |
| 6868 | { |
| 6869 | if (is_tu_index) |
| 6870 | { |
| 6871 | tu_count = nused; |
| 6872 | tu_sets = xcmalloc (nused, sizeof (struct cu_tu_set)); |
| 6873 | this_set = tu_sets; |
| 6874 | } |
| 6875 | else |
| 6876 | { |
| 6877 | cu_count = nused; |
| 6878 | cu_sets = xcmalloc (nused, sizeof (struct cu_tu_set)); |
| 6879 | this_set = cu_sets; |
| 6880 | } |
| 6881 | } |
| 6882 | |
| 6883 | if (do_display) |
| 6884 | { |
| 6885 | for (j = 0; j < ncols; j++) |
| 6886 | { |
| 6887 | SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit); |
| 6888 | printf (" %8s", get_DW_SECT_short_name (dw_sect)); |
| 6889 | } |
| 6890 | printf ("\n"); |
| 6891 | } |
| 6892 | |
| 6893 | for (i = 0; i < nslots; i++) |
| 6894 | { |
| 6895 | SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit); |
| 6896 | |
| 6897 | SAFE_BYTE_GET (row, pi, 4, limit); |
| 6898 | if (row != 0) |
| 6899 | { |
| 6900 | /* PR 17531: file: a05f6ab3. */ |
| 6901 | if (row > nused) |
| 6902 | { |
| 6903 | warn (_("Row index (%u) is larger than number of used entries (%u)\n"), |
| 6904 | row, nused); |
| 6905 | return 0; |
| 6906 | } |
| 6907 | |
| 6908 | if (!do_display) |
| 6909 | memcpy (&this_set[row - 1].signature, ph, sizeof (uint64_t)); |
| 6910 | |
| 6911 | prow = poffsets + (row - 1) * ncols * 4; |
| 6912 | |
| 6913 | if (do_display) |
| 6914 | printf (_(" [%3d] 0x%s"), |
| 6915 | i, dwarf_vmatoa64 (signature_high, signature_low, |
| 6916 | buf, sizeof (buf))); |
| 6917 | for (j = 0; j < ncols; j++) |
| 6918 | { |
| 6919 | SAFE_BYTE_GET (val, prow + j * 4, 4, limit); |
| 6920 | if (do_display) |
| 6921 | printf (" %8d", val); |
| 6922 | else |
| 6923 | { |
| 6924 | SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit); |
| 6925 | this_set [row - 1].section_offsets [dw_sect] = val; |
| 6926 | } |
| 6927 | } |
| 6928 | |
| 6929 | if (do_display) |
| 6930 | printf ("\n"); |
| 6931 | } |
| 6932 | ph += 8; |
| 6933 | pi += 4; |
| 6934 | } |
| 6935 | |
| 6936 | ph = phash; |
| 6937 | pi = pindex; |
| 6938 | if (do_display) |
| 6939 | { |
| 6940 | printf ("\n"); |
| 6941 | printf (_(" Size table\n")); |
| 6942 | printf (" slot %-16s ", |
| 6943 | is_tu_index ? _("signature") : _("dwo_id")); |
| 6944 | } |
| 6945 | |
| 6946 | for (j = 0; j < ncols; j++) |
| 6947 | { |
| 6948 | SAFE_BYTE_GET (val, ppool + j * 4, 4, limit); |
| 6949 | if (do_display) |
| 6950 | printf (" %8s", get_DW_SECT_short_name (val)); |
| 6951 | } |
| 6952 | |
| 6953 | if (do_display) |
| 6954 | printf ("\n"); |
| 6955 | |
| 6956 | for (i = 0; i < nslots; i++) |
| 6957 | { |
| 6958 | SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit); |
| 6959 | |
| 6960 | SAFE_BYTE_GET (row, pi, 4, limit); |
| 6961 | if (row != 0) |
| 6962 | { |
| 6963 | prow = psizes + (row - 1) * ncols * 4; |
| 6964 | |
| 6965 | if (do_display) |
| 6966 | printf (_(" [%3d] 0x%s"), |
| 6967 | i, dwarf_vmatoa64 (signature_high, signature_low, |
| 6968 | buf, sizeof (buf))); |
| 6969 | |
| 6970 | for (j = 0; j < ncols; j++) |
| 6971 | { |
| 6972 | SAFE_BYTE_GET (val, prow + j * 4, 4, limit); |
| 6973 | if (do_display) |
| 6974 | printf (" %8d", val); |
| 6975 | else |
| 6976 | { |
| 6977 | SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit); |
| 6978 | this_set [row - 1].section_sizes [dw_sect] = val; |
| 6979 | } |
| 6980 | } |
| 6981 | |
| 6982 | if (do_display) |
| 6983 | printf ("\n"); |
| 6984 | } |
| 6985 | |
| 6986 | ph += 8; |
| 6987 | pi += 4; |
| 6988 | } |
| 6989 | } |
| 6990 | else if (do_display) |
| 6991 | printf (_(" Unsupported version (%d)\n"), version); |
| 6992 | |
| 6993 | if (do_display) |
| 6994 | printf ("\n"); |
| 6995 | |
| 6996 | return 1; |
| 6997 | } |
| 6998 | |
| 6999 | /* Load the CU and TU indexes if present. This will build a list of |
| 7000 | section sets that we can use to associate a .debug_info.dwo section |
| 7001 | with its associated .debug_abbrev.dwo section in a .dwp file. */ |
| 7002 | |
| 7003 | static void |
| 7004 | load_cu_tu_indexes (void *file) |
| 7005 | { |
| 7006 | /* If we have already loaded (or tried to load) the CU and TU indexes |
| 7007 | then do not bother to repeat the task. */ |
| 7008 | if (cu_tu_indexes_read) |
| 7009 | return; |
| 7010 | |
| 7011 | if (load_debug_section (dwp_cu_index, file)) |
| 7012 | process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0); |
| 7013 | |
| 7014 | if (load_debug_section (dwp_tu_index, file)) |
| 7015 | process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0); |
| 7016 | |
| 7017 | cu_tu_indexes_read = 1; |
| 7018 | } |
| 7019 | |
| 7020 | /* Find the set of sections that includes section SHNDX. */ |
| 7021 | |
| 7022 | unsigned int * |
| 7023 | find_cu_tu_set (void *file, unsigned int shndx) |
| 7024 | { |
| 7025 | unsigned int i; |
| 7026 | |
| 7027 | load_cu_tu_indexes (file); |
| 7028 | |
| 7029 | /* Find SHNDX in the shndx pool. */ |
| 7030 | for (i = 0; i < shndx_pool_used; i++) |
| 7031 | if (shndx_pool [i] == shndx) |
| 7032 | break; |
| 7033 | |
| 7034 | if (i >= shndx_pool_used) |
| 7035 | return NULL; |
| 7036 | |
| 7037 | /* Now backup to find the first entry in the set. */ |
| 7038 | while (i > 0 && shndx_pool [i - 1] != 0) |
| 7039 | i--; |
| 7040 | |
| 7041 | return shndx_pool + i; |
| 7042 | } |
| 7043 | |
| 7044 | /* Display a .debug_cu_index or .debug_tu_index section. */ |
| 7045 | |
| 7046 | static int |
| 7047 | display_cu_index (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) |
| 7048 | { |
| 7049 | return process_cu_tu_index (section, 1); |
| 7050 | } |
| 7051 | |
| 7052 | static int |
| 7053 | display_debug_not_supported (struct dwarf_section *section, |
| 7054 | void *file ATTRIBUTE_UNUSED) |
| 7055 | { |
| 7056 | printf (_("Displaying the debug contents of section %s is not yet supported.\n"), |
| 7057 | section->name); |
| 7058 | |
| 7059 | return 1; |
| 7060 | } |
| 7061 | |
| 7062 | void * |
| 7063 | cmalloc (size_t nmemb, size_t size) |
| 7064 | { |
| 7065 | /* Check for overflow. */ |
| 7066 | if (nmemb >= ~(size_t) 0 / size) |
| 7067 | return NULL; |
| 7068 | else |
| 7069 | return malloc (nmemb * size); |
| 7070 | } |
| 7071 | |
| 7072 | void * |
| 7073 | xcmalloc (size_t nmemb, size_t size) |
| 7074 | { |
| 7075 | /* Check for overflow. */ |
| 7076 | if (nmemb >= ~(size_t) 0 / size) |
| 7077 | return NULL; |
| 7078 | else |
| 7079 | return xmalloc (nmemb * size); |
| 7080 | } |
| 7081 | |
| 7082 | void * |
| 7083 | xcrealloc (void *ptr, size_t nmemb, size_t size) |
| 7084 | { |
| 7085 | /* Check for overflow. */ |
| 7086 | if (nmemb >= ~(size_t) 0 / size) |
| 7087 | return NULL; |
| 7088 | else |
| 7089 | return xrealloc (ptr, nmemb * size); |
| 7090 | } |
| 7091 | |
| 7092 | void |
| 7093 | free_debug_memory (void) |
| 7094 | { |
| 7095 | unsigned int i; |
| 7096 | |
| 7097 | free_abbrevs (); |
| 7098 | |
| 7099 | for (i = 0; i < max; i++) |
| 7100 | free_debug_section ((enum dwarf_section_display_enum) i); |
| 7101 | |
| 7102 | if (debug_information != NULL) |
| 7103 | { |
| 7104 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE) |
| 7105 | { |
| 7106 | for (i = 0; i < num_debug_info_entries; i++) |
| 7107 | { |
| 7108 | if (!debug_information [i].max_loc_offsets) |
| 7109 | { |
| 7110 | free (debug_information [i].loc_offsets); |
| 7111 | free (debug_information [i].have_frame_base); |
| 7112 | } |
| 7113 | if (!debug_information [i].max_range_lists) |
| 7114 | free (debug_information [i].range_lists); |
| 7115 | } |
| 7116 | } |
| 7117 | |
| 7118 | free (debug_information); |
| 7119 | debug_information = NULL; |
| 7120 | num_debug_info_entries = 0; |
| 7121 | } |
| 7122 | } |
| 7123 | |
| 7124 | void |
| 7125 | dwarf_select_sections_by_names (const char *names) |
| 7126 | { |
| 7127 | typedef struct |
| 7128 | { |
| 7129 | const char * option; |
| 7130 | int * variable; |
| 7131 | int val; |
| 7132 | } |
| 7133 | debug_dump_long_opts; |
| 7134 | |
| 7135 | static const debug_dump_long_opts opts_table [] = |
| 7136 | { |
| 7137 | /* Please keep this table alpha- sorted. */ |
| 7138 | { "Ranges", & do_debug_ranges, 1 }, |
| 7139 | { "abbrev", & do_debug_abbrevs, 1 }, |
| 7140 | { "addr", & do_debug_addr, 1 }, |
| 7141 | { "aranges", & do_debug_aranges, 1 }, |
| 7142 | { "cu_index", & do_debug_cu_index, 1 }, |
| 7143 | { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED }, |
| 7144 | { "frames", & do_debug_frames, 1 }, |
| 7145 | { "frames-interp", & do_debug_frames_interp, 1 }, |
| 7146 | /* The special .gdb_index section. */ |
| 7147 | { "gdb_index", & do_gdb_index, 1 }, |
| 7148 | { "info", & do_debug_info, 1 }, |
| 7149 | { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */ |
| 7150 | { "loc", & do_debug_loc, 1 }, |
| 7151 | { "macro", & do_debug_macinfo, 1 }, |
| 7152 | { "pubnames", & do_debug_pubnames, 1 }, |
| 7153 | { "pubtypes", & do_debug_pubtypes, 1 }, |
| 7154 | /* This entry is for compatability |
| 7155 | with earlier versions of readelf. */ |
| 7156 | { "ranges", & do_debug_aranges, 1 }, |
| 7157 | { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, |
| 7158 | { "str", & do_debug_str, 1 }, |
| 7159 | /* These trace_* sections are used by Itanium VMS. */ |
| 7160 | { "trace_abbrev", & do_trace_abbrevs, 1 }, |
| 7161 | { "trace_aranges", & do_trace_aranges, 1 }, |
| 7162 | { "trace_info", & do_trace_info, 1 }, |
| 7163 | { NULL, NULL, 0 } |
| 7164 | }; |
| 7165 | |
| 7166 | const char *p; |
| 7167 | |
| 7168 | p = names; |
| 7169 | while (*p) |
| 7170 | { |
| 7171 | const debug_dump_long_opts * entry; |
| 7172 | |
| 7173 | for (entry = opts_table; entry->option; entry++) |
| 7174 | { |
| 7175 | size_t len = strlen (entry->option); |
| 7176 | |
| 7177 | if (strncmp (p, entry->option, len) == 0 |
| 7178 | && (p[len] == ',' || p[len] == '\0')) |
| 7179 | { |
| 7180 | * entry->variable |= entry->val; |
| 7181 | |
| 7182 | /* The --debug-dump=frames-interp option also |
| 7183 | enables the --debug-dump=frames option. */ |
| 7184 | if (do_debug_frames_interp) |
| 7185 | do_debug_frames = 1; |
| 7186 | |
| 7187 | p += len; |
| 7188 | break; |
| 7189 | } |
| 7190 | } |
| 7191 | |
| 7192 | if (entry->option == NULL) |
| 7193 | { |
| 7194 | warn (_("Unrecognized debug option '%s'\n"), p); |
| 7195 | p = strchr (p, ','); |
| 7196 | if (p == NULL) |
| 7197 | break; |
| 7198 | } |
| 7199 | |
| 7200 | if (*p == ',') |
| 7201 | p++; |
| 7202 | } |
| 7203 | } |
| 7204 | |
| 7205 | void |
| 7206 | dwarf_select_sections_by_letters (const char *letters) |
| 7207 | { |
| 7208 | unsigned int lindex = 0; |
| 7209 | |
| 7210 | while (letters[lindex]) |
| 7211 | switch (letters[lindex++]) |
| 7212 | { |
| 7213 | case 'i': |
| 7214 | do_debug_info = 1; |
| 7215 | break; |
| 7216 | |
| 7217 | case 'a': |
| 7218 | do_debug_abbrevs = 1; |
| 7219 | break; |
| 7220 | |
| 7221 | case 'l': |
| 7222 | do_debug_lines |= FLAG_DEBUG_LINES_RAW; |
| 7223 | break; |
| 7224 | |
| 7225 | case 'L': |
| 7226 | do_debug_lines |= FLAG_DEBUG_LINES_DECODED; |
| 7227 | break; |
| 7228 | |
| 7229 | case 'p': |
| 7230 | do_debug_pubnames = 1; |
| 7231 | break; |
| 7232 | |
| 7233 | case 't': |
| 7234 | do_debug_pubtypes = 1; |
| 7235 | break; |
| 7236 | |
| 7237 | case 'r': |
| 7238 | do_debug_aranges = 1; |
| 7239 | break; |
| 7240 | |
| 7241 | case 'R': |
| 7242 | do_debug_ranges = 1; |
| 7243 | break; |
| 7244 | |
| 7245 | case 'F': |
| 7246 | do_debug_frames_interp = 1; |
| 7247 | case 'f': |
| 7248 | do_debug_frames = 1; |
| 7249 | break; |
| 7250 | |
| 7251 | case 'm': |
| 7252 | do_debug_macinfo = 1; |
| 7253 | break; |
| 7254 | |
| 7255 | case 's': |
| 7256 | do_debug_str = 1; |
| 7257 | break; |
| 7258 | |
| 7259 | case 'o': |
| 7260 | do_debug_loc = 1; |
| 7261 | break; |
| 7262 | |
| 7263 | default: |
| 7264 | warn (_("Unrecognized debug option '%s'\n"), optarg); |
| 7265 | break; |
| 7266 | } |
| 7267 | } |
| 7268 | |
| 7269 | void |
| 7270 | dwarf_select_sections_all (void) |
| 7271 | { |
| 7272 | do_debug_info = 1; |
| 7273 | do_debug_abbrevs = 1; |
| 7274 | do_debug_lines = FLAG_DEBUG_LINES_RAW; |
| 7275 | do_debug_pubnames = 1; |
| 7276 | do_debug_pubtypes = 1; |
| 7277 | do_debug_aranges = 1; |
| 7278 | do_debug_ranges = 1; |
| 7279 | do_debug_frames = 1; |
| 7280 | do_debug_macinfo = 1; |
| 7281 | do_debug_str = 1; |
| 7282 | do_debug_loc = 1; |
| 7283 | do_gdb_index = 1; |
| 7284 | do_trace_info = 1; |
| 7285 | do_trace_abbrevs = 1; |
| 7286 | do_trace_aranges = 1; |
| 7287 | do_debug_addr = 1; |
| 7288 | do_debug_cu_index = 1; |
| 7289 | } |
| 7290 | |
| 7291 | struct dwarf_section_display debug_displays[] = |
| 7292 | { |
| 7293 | { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0, NULL }, |
| 7294 | display_debug_abbrev, &do_debug_abbrevs, 0 }, |
| 7295 | { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0, NULL }, |
| 7296 | display_debug_aranges, &do_debug_aranges, 1 }, |
| 7297 | { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0, NULL }, |
| 7298 | display_debug_frames, &do_debug_frames, 1 }, |
| 7299 | { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev, NULL }, |
| 7300 | display_debug_info, &do_debug_info, 1 }, |
| 7301 | { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0, NULL }, |
| 7302 | display_debug_lines, &do_debug_lines, 1 }, |
| 7303 | { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0, NULL }, |
| 7304 | display_debug_pubnames, &do_debug_pubnames, 0 }, |
| 7305 | { { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NULL, NULL, 0, 0, 0, NULL }, |
| 7306 | display_debug_gnu_pubnames, &do_debug_pubnames, 0 }, |
| 7307 | { { ".eh_frame", "", NULL, NULL, 0, 0, 0, NULL }, |
| 7308 | display_debug_frames, &do_debug_frames, 1 }, |
| 7309 | { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0, NULL }, |
| 7310 | display_debug_macinfo, &do_debug_macinfo, 0 }, |
| 7311 | { { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0, NULL }, |
| 7312 | display_debug_macro, &do_debug_macinfo, 1 }, |
| 7313 | { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0, NULL }, |
| 7314 | display_debug_str, &do_debug_str, 0 }, |
| 7315 | { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0, NULL }, |
| 7316 | display_debug_loc, &do_debug_loc, 1 }, |
| 7317 | { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0, NULL }, |
| 7318 | display_debug_pubnames, &do_debug_pubtypes, 0 }, |
| 7319 | { { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NULL, NULL, 0, 0, 0, NULL }, |
| 7320 | display_debug_gnu_pubnames, &do_debug_pubtypes, 0 }, |
| 7321 | { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0, NULL }, |
| 7322 | display_debug_ranges, &do_debug_ranges, 1 }, |
| 7323 | { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0, NULL }, |
| 7324 | display_debug_not_supported, NULL, 0 }, |
| 7325 | { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0, NULL }, |
| 7326 | display_debug_not_supported, NULL, 0 }, |
| 7327 | { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev, NULL }, |
| 7328 | display_debug_types, &do_debug_info, 1 }, |
| 7329 | { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0, NULL }, |
| 7330 | display_debug_not_supported, NULL, 0 }, |
| 7331 | { { ".gdb_index", "", NULL, NULL, 0, 0, 0, NULL }, |
| 7332 | display_gdb_index, &do_gdb_index, 0 }, |
| 7333 | { { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev, NULL }, |
| 7334 | display_trace_info, &do_trace_info, 1 }, |
| 7335 | { { ".trace_abbrev", "", NULL, NULL, 0, 0, 0, NULL }, |
| 7336 | display_debug_abbrev, &do_trace_abbrevs, 0 }, |
| 7337 | { { ".trace_aranges", "", NULL, NULL, 0, 0, 0, NULL }, |
| 7338 | display_debug_aranges, &do_trace_aranges, 0 }, |
| 7339 | { { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL }, |
| 7340 | display_debug_info, &do_debug_info, 1 }, |
| 7341 | { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0, NULL }, |
| 7342 | display_debug_abbrev, &do_debug_abbrevs, 0 }, |
| 7343 | { { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL }, |
| 7344 | display_debug_types, &do_debug_info, 1 }, |
| 7345 | { { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0, NULL }, |
| 7346 | display_debug_lines, &do_debug_lines, 1 }, |
| 7347 | { { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0, NULL }, |
| 7348 | display_debug_loc, &do_debug_loc, 1 }, |
| 7349 | { { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0, NULL }, |
| 7350 | display_debug_macro, &do_debug_macinfo, 1 }, |
| 7351 | { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0, NULL }, |
| 7352 | display_debug_macinfo, &do_debug_macinfo, 0 }, |
| 7353 | { { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0, NULL }, |
| 7354 | display_debug_str, &do_debug_str, 1 }, |
| 7355 | { { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0, NULL }, |
| 7356 | display_debug_str_offsets, NULL, 0 }, |
| 7357 | { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0, NULL }, |
| 7358 | display_debug_str_offsets, NULL, 0 }, |
| 7359 | { { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0, NULL }, |
| 7360 | display_debug_addr, &do_debug_addr, 1 }, |
| 7361 | { { ".debug_cu_index", "", NULL, NULL, 0, 0, 0, NULL }, |
| 7362 | display_cu_index, &do_debug_cu_index, 0 }, |
| 7363 | { { ".debug_tu_index", "", NULL, NULL, 0, 0, 0, NULL }, |
| 7364 | display_cu_index, &do_debug_cu_index, 0 }, |
| 7365 | }; |