| 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 __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2) |
| 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 | |
| 865 | maxlen = (dwarf_vma) (end - data); |
| 866 | length = length > maxlen ? maxlen : length; |
| 867 | |
| 868 | while (length --) |
| 869 | printf ("%lx ", (unsigned long) byte_get (data++, 1)); |
| 870 | |
| 871 | return data; |
| 872 | } |
| 873 | |
| 874 | static int |
| 875 | decode_location_expression (unsigned char * data, |
| 876 | unsigned int pointer_size, |
| 877 | unsigned int offset_size, |
| 878 | int dwarf_version, |
| 879 | dwarf_vma length, |
| 880 | dwarf_vma cu_offset, |
| 881 | struct dwarf_section * section) |
| 882 | { |
| 883 | unsigned op; |
| 884 | unsigned int bytes_read; |
| 885 | dwarf_vma uvalue; |
| 886 | dwarf_signed_vma svalue; |
| 887 | unsigned char *end = data + length; |
| 888 | int need_frame_base = 0; |
| 889 | |
| 890 | while (data < end) |
| 891 | { |
| 892 | op = *data++; |
| 893 | |
| 894 | switch (op) |
| 895 | { |
| 896 | case DW_OP_addr: |
| 897 | SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| 898 | printf ("DW_OP_addr: %s", dwarf_vmatoa ("x", uvalue)); |
| 899 | break; |
| 900 | case DW_OP_deref: |
| 901 | printf ("DW_OP_deref"); |
| 902 | break; |
| 903 | case DW_OP_const1u: |
| 904 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 905 | printf ("DW_OP_const1u: %lu", (unsigned long) uvalue); |
| 906 | break; |
| 907 | case DW_OP_const1s: |
| 908 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 1, end); |
| 909 | printf ("DW_OP_const1s: %ld", (long) svalue); |
| 910 | break; |
| 911 | case DW_OP_const2u: |
| 912 | SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end); |
| 913 | printf ("DW_OP_const2u: %lu", (unsigned long) uvalue); |
| 914 | break; |
| 915 | case DW_OP_const2s: |
| 916 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| 917 | printf ("DW_OP_const2s: %ld", (long) svalue); |
| 918 | break; |
| 919 | case DW_OP_const4u: |
| 920 | SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| 921 | printf ("DW_OP_const4u: %lu", (unsigned long) uvalue); |
| 922 | break; |
| 923 | case DW_OP_const4s: |
| 924 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| 925 | printf ("DW_OP_const4s: %ld", (long) svalue); |
| 926 | break; |
| 927 | case DW_OP_const8u: |
| 928 | SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| 929 | printf ("DW_OP_const8u: %lu ", (unsigned long) uvalue); |
| 930 | SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| 931 | printf ("%lu", (unsigned long) uvalue); |
| 932 | break; |
| 933 | case DW_OP_const8s: |
| 934 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| 935 | printf ("DW_OP_const8s: %ld ", (long) svalue); |
| 936 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| 937 | printf ("%ld", (long) svalue); |
| 938 | break; |
| 939 | case DW_OP_constu: |
| 940 | printf ("DW_OP_constu: %s", |
| 941 | dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| 942 | data += bytes_read; |
| 943 | break; |
| 944 | case DW_OP_consts: |
| 945 | printf ("DW_OP_consts: %s", |
| 946 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| 947 | data += bytes_read; |
| 948 | break; |
| 949 | case DW_OP_dup: |
| 950 | printf ("DW_OP_dup"); |
| 951 | break; |
| 952 | case DW_OP_drop: |
| 953 | printf ("DW_OP_drop"); |
| 954 | break; |
| 955 | case DW_OP_over: |
| 956 | printf ("DW_OP_over"); |
| 957 | break; |
| 958 | case DW_OP_pick: |
| 959 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 960 | printf ("DW_OP_pick: %ld", (unsigned long) uvalue); |
| 961 | break; |
| 962 | case DW_OP_swap: |
| 963 | printf ("DW_OP_swap"); |
| 964 | break; |
| 965 | case DW_OP_rot: |
| 966 | printf ("DW_OP_rot"); |
| 967 | break; |
| 968 | case DW_OP_xderef: |
| 969 | printf ("DW_OP_xderef"); |
| 970 | break; |
| 971 | case DW_OP_abs: |
| 972 | printf ("DW_OP_abs"); |
| 973 | break; |
| 974 | case DW_OP_and: |
| 975 | printf ("DW_OP_and"); |
| 976 | break; |
| 977 | case DW_OP_div: |
| 978 | printf ("DW_OP_div"); |
| 979 | break; |
| 980 | case DW_OP_minus: |
| 981 | printf ("DW_OP_minus"); |
| 982 | break; |
| 983 | case DW_OP_mod: |
| 984 | printf ("DW_OP_mod"); |
| 985 | break; |
| 986 | case DW_OP_mul: |
| 987 | printf ("DW_OP_mul"); |
| 988 | break; |
| 989 | case DW_OP_neg: |
| 990 | printf ("DW_OP_neg"); |
| 991 | break; |
| 992 | case DW_OP_not: |
| 993 | printf ("DW_OP_not"); |
| 994 | break; |
| 995 | case DW_OP_or: |
| 996 | printf ("DW_OP_or"); |
| 997 | break; |
| 998 | case DW_OP_plus: |
| 999 | printf ("DW_OP_plus"); |
| 1000 | break; |
| 1001 | case DW_OP_plus_uconst: |
| 1002 | printf ("DW_OP_plus_uconst: %s", |
| 1003 | dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| 1004 | data += bytes_read; |
| 1005 | break; |
| 1006 | case DW_OP_shl: |
| 1007 | printf ("DW_OP_shl"); |
| 1008 | break; |
| 1009 | case DW_OP_shr: |
| 1010 | printf ("DW_OP_shr"); |
| 1011 | break; |
| 1012 | case DW_OP_shra: |
| 1013 | printf ("DW_OP_shra"); |
| 1014 | break; |
| 1015 | case DW_OP_xor: |
| 1016 | printf ("DW_OP_xor"); |
| 1017 | break; |
| 1018 | case DW_OP_bra: |
| 1019 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| 1020 | printf ("DW_OP_bra: %ld", (long) svalue); |
| 1021 | break; |
| 1022 | case DW_OP_eq: |
| 1023 | printf ("DW_OP_eq"); |
| 1024 | break; |
| 1025 | case DW_OP_ge: |
| 1026 | printf ("DW_OP_ge"); |
| 1027 | break; |
| 1028 | case DW_OP_gt: |
| 1029 | printf ("DW_OP_gt"); |
| 1030 | break; |
| 1031 | case DW_OP_le: |
| 1032 | printf ("DW_OP_le"); |
| 1033 | break; |
| 1034 | case DW_OP_lt: |
| 1035 | printf ("DW_OP_lt"); |
| 1036 | break; |
| 1037 | case DW_OP_ne: |
| 1038 | printf ("DW_OP_ne"); |
| 1039 | break; |
| 1040 | case DW_OP_skip: |
| 1041 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| 1042 | printf ("DW_OP_skip: %ld", (long) svalue); |
| 1043 | break; |
| 1044 | |
| 1045 | case DW_OP_lit0: |
| 1046 | case DW_OP_lit1: |
| 1047 | case DW_OP_lit2: |
| 1048 | case DW_OP_lit3: |
| 1049 | case DW_OP_lit4: |
| 1050 | case DW_OP_lit5: |
| 1051 | case DW_OP_lit6: |
| 1052 | case DW_OP_lit7: |
| 1053 | case DW_OP_lit8: |
| 1054 | case DW_OP_lit9: |
| 1055 | case DW_OP_lit10: |
| 1056 | case DW_OP_lit11: |
| 1057 | case DW_OP_lit12: |
| 1058 | case DW_OP_lit13: |
| 1059 | case DW_OP_lit14: |
| 1060 | case DW_OP_lit15: |
| 1061 | case DW_OP_lit16: |
| 1062 | case DW_OP_lit17: |
| 1063 | case DW_OP_lit18: |
| 1064 | case DW_OP_lit19: |
| 1065 | case DW_OP_lit20: |
| 1066 | case DW_OP_lit21: |
| 1067 | case DW_OP_lit22: |
| 1068 | case DW_OP_lit23: |
| 1069 | case DW_OP_lit24: |
| 1070 | case DW_OP_lit25: |
| 1071 | case DW_OP_lit26: |
| 1072 | case DW_OP_lit27: |
| 1073 | case DW_OP_lit28: |
| 1074 | case DW_OP_lit29: |
| 1075 | case DW_OP_lit30: |
| 1076 | case DW_OP_lit31: |
| 1077 | printf ("DW_OP_lit%d", op - DW_OP_lit0); |
| 1078 | break; |
| 1079 | |
| 1080 | case DW_OP_reg0: |
| 1081 | case DW_OP_reg1: |
| 1082 | case DW_OP_reg2: |
| 1083 | case DW_OP_reg3: |
| 1084 | case DW_OP_reg4: |
| 1085 | case DW_OP_reg5: |
| 1086 | case DW_OP_reg6: |
| 1087 | case DW_OP_reg7: |
| 1088 | case DW_OP_reg8: |
| 1089 | case DW_OP_reg9: |
| 1090 | case DW_OP_reg10: |
| 1091 | case DW_OP_reg11: |
| 1092 | case DW_OP_reg12: |
| 1093 | case DW_OP_reg13: |
| 1094 | case DW_OP_reg14: |
| 1095 | case DW_OP_reg15: |
| 1096 | case DW_OP_reg16: |
| 1097 | case DW_OP_reg17: |
| 1098 | case DW_OP_reg18: |
| 1099 | case DW_OP_reg19: |
| 1100 | case DW_OP_reg20: |
| 1101 | case DW_OP_reg21: |
| 1102 | case DW_OP_reg22: |
| 1103 | case DW_OP_reg23: |
| 1104 | case DW_OP_reg24: |
| 1105 | case DW_OP_reg25: |
| 1106 | case DW_OP_reg26: |
| 1107 | case DW_OP_reg27: |
| 1108 | case DW_OP_reg28: |
| 1109 | case DW_OP_reg29: |
| 1110 | case DW_OP_reg30: |
| 1111 | case DW_OP_reg31: |
| 1112 | printf ("DW_OP_reg%d (%s)", op - DW_OP_reg0, |
| 1113 | regname (op - DW_OP_reg0, 1)); |
| 1114 | break; |
| 1115 | |
| 1116 | case DW_OP_breg0: |
| 1117 | case DW_OP_breg1: |
| 1118 | case DW_OP_breg2: |
| 1119 | case DW_OP_breg3: |
| 1120 | case DW_OP_breg4: |
| 1121 | case DW_OP_breg5: |
| 1122 | case DW_OP_breg6: |
| 1123 | case DW_OP_breg7: |
| 1124 | case DW_OP_breg8: |
| 1125 | case DW_OP_breg9: |
| 1126 | case DW_OP_breg10: |
| 1127 | case DW_OP_breg11: |
| 1128 | case DW_OP_breg12: |
| 1129 | case DW_OP_breg13: |
| 1130 | case DW_OP_breg14: |
| 1131 | case DW_OP_breg15: |
| 1132 | case DW_OP_breg16: |
| 1133 | case DW_OP_breg17: |
| 1134 | case DW_OP_breg18: |
| 1135 | case DW_OP_breg19: |
| 1136 | case DW_OP_breg20: |
| 1137 | case DW_OP_breg21: |
| 1138 | case DW_OP_breg22: |
| 1139 | case DW_OP_breg23: |
| 1140 | case DW_OP_breg24: |
| 1141 | case DW_OP_breg25: |
| 1142 | case DW_OP_breg26: |
| 1143 | case DW_OP_breg27: |
| 1144 | case DW_OP_breg28: |
| 1145 | case DW_OP_breg29: |
| 1146 | case DW_OP_breg30: |
| 1147 | case DW_OP_breg31: |
| 1148 | printf ("DW_OP_breg%d (%s): %s", |
| 1149 | op - DW_OP_breg0, |
| 1150 | regname (op - DW_OP_breg0, 1), |
| 1151 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| 1152 | data += bytes_read; |
| 1153 | break; |
| 1154 | |
| 1155 | case DW_OP_regx: |
| 1156 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1157 | data += bytes_read; |
| 1158 | printf ("DW_OP_regx: %s (%s)", |
| 1159 | dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); |
| 1160 | break; |
| 1161 | case DW_OP_fbreg: |
| 1162 | need_frame_base = 1; |
| 1163 | printf ("DW_OP_fbreg: %s", |
| 1164 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| 1165 | data += bytes_read; |
| 1166 | break; |
| 1167 | case DW_OP_bregx: |
| 1168 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1169 | data += bytes_read; |
| 1170 | printf ("DW_OP_bregx: %s (%s) %s", |
| 1171 | dwarf_vmatoa ("u", uvalue), regname (uvalue, 1), |
| 1172 | dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| 1173 | data += bytes_read; |
| 1174 | break; |
| 1175 | case DW_OP_piece: |
| 1176 | printf ("DW_OP_piece: %s", |
| 1177 | dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| 1178 | data += bytes_read; |
| 1179 | break; |
| 1180 | case DW_OP_deref_size: |
| 1181 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 1182 | printf ("DW_OP_deref_size: %ld", (long) uvalue); |
| 1183 | break; |
| 1184 | case DW_OP_xderef_size: |
| 1185 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 1186 | printf ("DW_OP_xderef_size: %ld", (long) uvalue); |
| 1187 | break; |
| 1188 | case DW_OP_nop: |
| 1189 | printf ("DW_OP_nop"); |
| 1190 | break; |
| 1191 | |
| 1192 | /* DWARF 3 extensions. */ |
| 1193 | case DW_OP_push_object_address: |
| 1194 | printf ("DW_OP_push_object_address"); |
| 1195 | break; |
| 1196 | case DW_OP_call2: |
| 1197 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1198 | this ought to be an 8-byte wide computation. */ |
| 1199 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| 1200 | printf ("DW_OP_call2: <0x%s>", |
| 1201 | dwarf_vmatoa ("x", svalue + cu_offset)); |
| 1202 | break; |
| 1203 | case DW_OP_call4: |
| 1204 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1205 | this ought to be an 8-byte wide computation. */ |
| 1206 | SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| 1207 | printf ("DW_OP_call4: <0x%s>", |
| 1208 | dwarf_vmatoa ("x", svalue + cu_offset)); |
| 1209 | break; |
| 1210 | case DW_OP_call_ref: |
| 1211 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1212 | this ought to be an 8-byte wide computation. */ |
| 1213 | if (dwarf_version == -1) |
| 1214 | { |
| 1215 | printf (_("(DW_OP_call_ref in frame info)")); |
| 1216 | /* No way to tell where the next op is, so just bail. */ |
| 1217 | return need_frame_base; |
| 1218 | } |
| 1219 | if (dwarf_version == 2) |
| 1220 | { |
| 1221 | SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| 1222 | } |
| 1223 | else |
| 1224 | { |
| 1225 | SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| 1226 | } |
| 1227 | printf ("DW_OP_call_ref: <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| 1228 | break; |
| 1229 | case DW_OP_form_tls_address: |
| 1230 | printf ("DW_OP_form_tls_address"); |
| 1231 | break; |
| 1232 | case DW_OP_call_frame_cfa: |
| 1233 | printf ("DW_OP_call_frame_cfa"); |
| 1234 | break; |
| 1235 | case DW_OP_bit_piece: |
| 1236 | printf ("DW_OP_bit_piece: "); |
| 1237 | printf (_("size: %s "), |
| 1238 | dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| 1239 | data += bytes_read; |
| 1240 | printf (_("offset: %s "), |
| 1241 | dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| 1242 | data += bytes_read; |
| 1243 | break; |
| 1244 | |
| 1245 | /* DWARF 4 extensions. */ |
| 1246 | case DW_OP_stack_value: |
| 1247 | printf ("DW_OP_stack_value"); |
| 1248 | break; |
| 1249 | |
| 1250 | case DW_OP_implicit_value: |
| 1251 | printf ("DW_OP_implicit_value"); |
| 1252 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1253 | data += bytes_read; |
| 1254 | data = display_block (data, uvalue, end); |
| 1255 | break; |
| 1256 | |
| 1257 | /* GNU extensions. */ |
| 1258 | case DW_OP_GNU_push_tls_address: |
| 1259 | printf (_("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown")); |
| 1260 | break; |
| 1261 | case DW_OP_GNU_uninit: |
| 1262 | printf ("DW_OP_GNU_uninit"); |
| 1263 | /* FIXME: Is there data associated with this OP ? */ |
| 1264 | break; |
| 1265 | case DW_OP_GNU_encoded_addr: |
| 1266 | { |
| 1267 | int encoding = 0; |
| 1268 | dwarf_vma addr; |
| 1269 | |
| 1270 | if (data < end) |
| 1271 | encoding = *data++; |
| 1272 | addr = get_encoded_value (&data, encoding, section, end); |
| 1273 | |
| 1274 | printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding); |
| 1275 | print_dwarf_vma (addr, pointer_size); |
| 1276 | } |
| 1277 | break; |
| 1278 | case DW_OP_GNU_implicit_pointer: |
| 1279 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
| 1280 | this ought to be an 8-byte wide computation. */ |
| 1281 | if (dwarf_version == -1) |
| 1282 | { |
| 1283 | printf (_("(DW_OP_GNU_implicit_pointer in frame info)")); |
| 1284 | /* No way to tell where the next op is, so just bail. */ |
| 1285 | return need_frame_base; |
| 1286 | } |
| 1287 | if (dwarf_version == 2) |
| 1288 | { |
| 1289 | SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| 1290 | } |
| 1291 | else |
| 1292 | { |
| 1293 | SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| 1294 | } |
| 1295 | printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s", |
| 1296 | dwarf_vmatoa ("x", uvalue), |
| 1297 | dwarf_vmatoa ("d", read_sleb128 (data, |
| 1298 | &bytes_read, end))); |
| 1299 | data += bytes_read; |
| 1300 | break; |
| 1301 | case DW_OP_GNU_entry_value: |
| 1302 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1303 | data += bytes_read; |
| 1304 | printf ("DW_OP_GNU_entry_value: ("); |
| 1305 | if (decode_location_expression (data, pointer_size, offset_size, |
| 1306 | dwarf_version, uvalue, |
| 1307 | cu_offset, section)) |
| 1308 | need_frame_base = 1; |
| 1309 | putchar (')'); |
| 1310 | data += uvalue; |
| 1311 | if (data > end) |
| 1312 | data = end; |
| 1313 | break; |
| 1314 | case DW_OP_GNU_const_type: |
| 1315 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1316 | data += bytes_read; |
| 1317 | printf ("DW_OP_GNU_const_type: <0x%s> ", |
| 1318 | dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1319 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 1320 | data = display_block (data, uvalue, end); |
| 1321 | break; |
| 1322 | case DW_OP_GNU_regval_type: |
| 1323 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1324 | data += bytes_read; |
| 1325 | printf ("DW_OP_GNU_regval_type: %s (%s)", |
| 1326 | dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); |
| 1327 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1328 | data += bytes_read; |
| 1329 | printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1330 | break; |
| 1331 | case DW_OP_GNU_deref_type: |
| 1332 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 1333 | printf ("DW_OP_GNU_deref_type: %ld", (long) uvalue); |
| 1334 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1335 | data += bytes_read; |
| 1336 | printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1337 | break; |
| 1338 | case DW_OP_GNU_convert: |
| 1339 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1340 | data += bytes_read; |
| 1341 | printf ("DW_OP_GNU_convert <0x%s>", |
| 1342 | dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); |
| 1343 | break; |
| 1344 | case DW_OP_GNU_reinterpret: |
| 1345 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1346 | data += bytes_read; |
| 1347 | printf ("DW_OP_GNU_reinterpret <0x%s>", |
| 1348 | dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); |
| 1349 | break; |
| 1350 | case DW_OP_GNU_parameter_ref: |
| 1351 | SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| 1352 | printf ("DW_OP_GNU_parameter_ref: <0x%s>", |
| 1353 | dwarf_vmatoa ("x", cu_offset + uvalue)); |
| 1354 | break; |
| 1355 | case DW_OP_GNU_addr_index: |
| 1356 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1357 | data += bytes_read; |
| 1358 | printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| 1359 | break; |
| 1360 | case DW_OP_GNU_const_index: |
| 1361 | uvalue = read_uleb128 (data, &bytes_read, end); |
| 1362 | data += bytes_read; |
| 1363 | printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| 1364 | break; |
| 1365 | |
| 1366 | /* HP extensions. */ |
| 1367 | case DW_OP_HP_is_value: |
| 1368 | printf ("DW_OP_HP_is_value"); |
| 1369 | /* FIXME: Is there data associated with this OP ? */ |
| 1370 | break; |
| 1371 | case DW_OP_HP_fltconst4: |
| 1372 | printf ("DW_OP_HP_fltconst4"); |
| 1373 | /* FIXME: Is there data associated with this OP ? */ |
| 1374 | break; |
| 1375 | case DW_OP_HP_fltconst8: |
| 1376 | printf ("DW_OP_HP_fltconst8"); |
| 1377 | /* FIXME: Is there data associated with this OP ? */ |
| 1378 | break; |
| 1379 | case DW_OP_HP_mod_range: |
| 1380 | printf ("DW_OP_HP_mod_range"); |
| 1381 | /* FIXME: Is there data associated with this OP ? */ |
| 1382 | break; |
| 1383 | case DW_OP_HP_unmod_range: |
| 1384 | printf ("DW_OP_HP_unmod_range"); |
| 1385 | /* FIXME: Is there data associated with this OP ? */ |
| 1386 | break; |
| 1387 | case DW_OP_HP_tls: |
| 1388 | printf ("DW_OP_HP_tls"); |
| 1389 | /* FIXME: Is there data associated with this OP ? */ |
| 1390 | break; |
| 1391 | |
| 1392 | /* PGI (STMicroelectronics) extensions. */ |
| 1393 | case DW_OP_PGI_omp_thread_num: |
| 1394 | /* Pushes the thread number for the current thread as it would be |
| 1395 | returned by the standard OpenMP library function: |
| 1396 | omp_get_thread_num(). The "current thread" is the thread for |
| 1397 | which the expression is being evaluated. */ |
| 1398 | printf ("DW_OP_PGI_omp_thread_num"); |
| 1399 | break; |
| 1400 | |
| 1401 | default: |
| 1402 | if (op >= DW_OP_lo_user |
| 1403 | && op <= DW_OP_hi_user) |
| 1404 | printf (_("(User defined location op)")); |
| 1405 | else |
| 1406 | printf (_("(Unknown location op)")); |
| 1407 | /* No way to tell where the next op is, so just bail. */ |
| 1408 | return need_frame_base; |
| 1409 | } |
| 1410 | |
| 1411 | /* Separate the ops. */ |
| 1412 | if (data < end) |
| 1413 | printf ("; "); |
| 1414 | } |
| 1415 | |
| 1416 | return need_frame_base; |
| 1417 | } |
| 1418 | |
| 1419 | /* Find the CU or TU set corresponding to the given CU_OFFSET. |
| 1420 | This is used for DWARF package files. */ |
| 1421 | |
| 1422 | static struct cu_tu_set * |
| 1423 | find_cu_tu_set_v2 (dwarf_vma cu_offset, int do_types) |
| 1424 | { |
| 1425 | struct cu_tu_set *p; |
| 1426 | unsigned int nsets; |
| 1427 | unsigned int dw_sect; |
| 1428 | |
| 1429 | if (do_types) |
| 1430 | { |
| 1431 | p = tu_sets; |
| 1432 | nsets = tu_count; |
| 1433 | dw_sect = DW_SECT_TYPES; |
| 1434 | } |
| 1435 | else |
| 1436 | { |
| 1437 | p = cu_sets; |
| 1438 | nsets = cu_count; |
| 1439 | dw_sect = DW_SECT_INFO; |
| 1440 | } |
| 1441 | while (nsets > 0) |
| 1442 | { |
| 1443 | if (p->section_offsets [dw_sect] == cu_offset) |
| 1444 | return p; |
| 1445 | p++; |
| 1446 | nsets--; |
| 1447 | } |
| 1448 | return NULL; |
| 1449 | } |
| 1450 | |
| 1451 | /* Add INC to HIGH_BITS:LOW_BITS. */ |
| 1452 | static void |
| 1453 | add64 (dwarf_vma * high_bits, dwarf_vma * low_bits, dwarf_vma inc) |
| 1454 | { |
| 1455 | dwarf_vma tmp = * low_bits; |
| 1456 | |
| 1457 | tmp += inc; |
| 1458 | |
| 1459 | /* FIXME: There is probably a better way of handling this: |
| 1460 | |
| 1461 | We need to cope with dwarf_vma being a 32-bit or 64-bit |
| 1462 | type. Plus regardless of its size LOW_BITS is meant to |
| 1463 | only hold 32-bits, so if there is overflow or wrap around |
| 1464 | we must propagate into HIGH_BITS. */ |
| 1465 | if (tmp < * low_bits) |
| 1466 | { |
| 1467 | ++ * high_bits; |
| 1468 | } |
| 1469 | else if (sizeof (tmp) > 8 |
| 1470 | && (tmp >> 31) > 1) |
| 1471 | { |
| 1472 | ++ * high_bits; |
| 1473 | tmp &= 0xFFFFFFFF; |
| 1474 | } |
| 1475 | |
| 1476 | * low_bits = tmp; |
| 1477 | } |
| 1478 | |
| 1479 | static unsigned char * |
| 1480 | read_and_display_attr_value (unsigned long attribute, |
| 1481 | unsigned long form, |
| 1482 | unsigned char * data, |
| 1483 | unsigned char * end, |
| 1484 | dwarf_vma cu_offset, |
| 1485 | dwarf_vma pointer_size, |
| 1486 | dwarf_vma offset_size, |
| 1487 | int dwarf_version, |
| 1488 | debug_info * debug_info_p, |
| 1489 | int do_loc, |
| 1490 | struct dwarf_section * section, |
| 1491 | struct cu_tu_set * this_set) |
| 1492 | { |
| 1493 | dwarf_vma uvalue = 0; |
| 1494 | unsigned char *block_start = NULL; |
| 1495 | unsigned char * orig_data = data; |
| 1496 | unsigned int bytes_read; |
| 1497 | |
| 1498 | if (data > end || (data == end && form != DW_FORM_flag_present)) |
| 1499 | { |
| 1500 | warn (_("Corrupt attribute\n")); |
| 1501 | return data; |
| 1502 | } |
| 1503 | |
| 1504 | switch (form) |
| 1505 | { |
| 1506 | default: |
| 1507 | break; |
| 1508 | |
| 1509 | case DW_FORM_ref_addr: |
| 1510 | if (dwarf_version == 2) |
| 1511 | SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| 1512 | else if (dwarf_version == 3 || dwarf_version == 4) |
| 1513 | SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| 1514 | else |
| 1515 | error (_("Internal error: DWARF version is not 2, 3 or 4.\n")); |
| 1516 | |
| 1517 | break; |
| 1518 | |
| 1519 | case DW_FORM_addr: |
| 1520 | SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| 1521 | break; |
| 1522 | |
| 1523 | case DW_FORM_strp: |
| 1524 | case DW_FORM_sec_offset: |
| 1525 | case DW_FORM_GNU_ref_alt: |
| 1526 | case DW_FORM_GNU_strp_alt: |
| 1527 | SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| 1528 | break; |
| 1529 | |
| 1530 | case DW_FORM_flag_present: |
| 1531 | uvalue = 1; |
| 1532 | break; |
| 1533 | |
| 1534 | case DW_FORM_ref1: |
| 1535 | case DW_FORM_flag: |
| 1536 | case DW_FORM_data1: |
| 1537 | SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| 1538 | break; |
| 1539 | |
| 1540 | case DW_FORM_ref2: |
| 1541 | case DW_FORM_data2: |
| 1542 | SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end); |
| 1543 | break; |
| 1544 | |
| 1545 | case DW_FORM_ref4: |
| 1546 | case DW_FORM_data4: |
| 1547 | SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| 1548 | break; |
| 1549 | |
| 1550 | case DW_FORM_sdata: |
| 1551 | uvalue = read_sleb128 (data, & bytes_read, end); |
| 1552 | data += bytes_read; |
| 1553 | break; |
| 1554 | |
| 1555 | case DW_FORM_GNU_str_index: |
| 1556 | uvalue = read_uleb128 (data, & bytes_read, end); |
| 1557 | data += bytes_read; |
| 1558 | break; |
| 1559 | |
| 1560 | case DW_FORM_ref_udata: |
| 1561 | case DW_FORM_udata: |
| 1562 | uvalue = read_uleb128 (data, & bytes_read, end); |
| 1563 | data += bytes_read; |
| 1564 | break; |
| 1565 | |
| 1566 | case DW_FORM_indirect: |
| 1567 | form = read_uleb128 (data, & bytes_read, end); |
| 1568 | data += bytes_read; |
| 1569 | if (!do_loc) |
| 1570 | printf (" %s", get_FORM_name (form)); |
| 1571 | return read_and_display_attr_value (attribute, form, data, end, |
| 1572 | cu_offset, pointer_size, |
| 1573 | offset_size, dwarf_version, |
| 1574 | debug_info_p, do_loc, |
| 1575 | section, this_set); |
| 1576 | case DW_FORM_GNU_addr_index: |
| 1577 | uvalue = read_uleb128 (data, & bytes_read, end); |
| 1578 | data += bytes_read; |
| 1579 | break; |
| 1580 | } |
| 1581 | |
| 1582 | switch (form) |
| 1583 | { |
| 1584 | case DW_FORM_ref_addr: |
| 1585 | if (!do_loc) |
| 1586 | printf (" <0x%s>", dwarf_vmatoa ("x",uvalue)); |
| 1587 | break; |
| 1588 | |
| 1589 | case DW_FORM_GNU_ref_alt: |
| 1590 | if (!do_loc) |
| 1591 | printf (" <alt 0x%s>", dwarf_vmatoa ("x",uvalue)); |
| 1592 | break; |
| 1593 | |
| 1594 | case DW_FORM_ref1: |
| 1595 | case DW_FORM_ref2: |
| 1596 | case DW_FORM_ref4: |
| 1597 | case DW_FORM_ref_udata: |
| 1598 | if (!do_loc) |
| 1599 | printf (" <0x%s>", dwarf_vmatoa ("x", uvalue + cu_offset)); |
| 1600 | break; |
| 1601 | |
| 1602 | case DW_FORM_data4: |
| 1603 | case DW_FORM_addr: |
| 1604 | case DW_FORM_sec_offset: |
| 1605 | if (!do_loc) |
| 1606 | printf (" 0x%s", dwarf_vmatoa ("x", uvalue)); |
| 1607 | break; |
| 1608 | |
| 1609 | case DW_FORM_flag_present: |
| 1610 | case DW_FORM_flag: |
| 1611 | case DW_FORM_data1: |
| 1612 | case DW_FORM_data2: |
| 1613 | case DW_FORM_sdata: |
| 1614 | case DW_FORM_udata: |
| 1615 | if (!do_loc) |
| 1616 | printf (" %s", dwarf_vmatoa ("d", uvalue)); |
| 1617 | break; |
| 1618 | |
| 1619 | case DW_FORM_ref8: |
| 1620 | case DW_FORM_data8: |
| 1621 | if (!do_loc) |
| 1622 | { |
| 1623 | dwarf_vma high_bits; |
| 1624 | dwarf_vma utmp; |
| 1625 | char buf[64]; |
| 1626 | |
| 1627 | SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end); |
| 1628 | utmp = uvalue; |
| 1629 | if (form == DW_FORM_ref8) |
| 1630 | add64 (& high_bits, & utmp, cu_offset); |
| 1631 | printf (" 0x%s", |
| 1632 | dwarf_vmatoa64 (high_bits, utmp, buf, sizeof (buf))); |
| 1633 | } |
| 1634 | |
| 1635 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1636 | && num_debug_info_entries == 0) |
| 1637 | { |
| 1638 | if (sizeof (uvalue) == 8) |
| 1639 | SAFE_BYTE_GET (uvalue, data, 8, end); |
| 1640 | else |
| 1641 | error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n")); |
| 1642 | } |
| 1643 | |
| 1644 | data += 8; |
| 1645 | break; |
| 1646 | |
| 1647 | case DW_FORM_string: |
| 1648 | if (!do_loc) |
| 1649 | printf (" %.*s", (int) (end - data), data); |
| 1650 | data += strnlen ((char *) data, end - data) + 1; |
| 1651 | break; |
| 1652 | |
| 1653 | case DW_FORM_block: |
| 1654 | case DW_FORM_exprloc: |
| 1655 | uvalue = read_uleb128 (data, & bytes_read, end); |
| 1656 | block_start = data + bytes_read; |
| 1657 | /* PR 17512: file: 008-103549-0.001:0.1. */ |
| 1658 | if (block_start + uvalue > end) |
| 1659 | { |
| 1660 | warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| 1661 | uvalue = end - block_start; |
| 1662 | } |
| 1663 | if (do_loc) |
| 1664 | data = block_start + uvalue; |
| 1665 | else |
| 1666 | data = display_block (block_start, uvalue, end); |
| 1667 | break; |
| 1668 | |
| 1669 | case DW_FORM_block1: |
| 1670 | SAFE_BYTE_GET (uvalue, data, 1, end); |
| 1671 | block_start = data + 1; |
| 1672 | if (block_start + uvalue > end) |
| 1673 | { |
| 1674 | warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| 1675 | uvalue = end - block_start; |
| 1676 | } |
| 1677 | if (do_loc) |
| 1678 | data = block_start + uvalue; |
| 1679 | else |
| 1680 | data = display_block (block_start, uvalue, end); |
| 1681 | break; |
| 1682 | |
| 1683 | case DW_FORM_block2: |
| 1684 | SAFE_BYTE_GET (uvalue, data, 2, end); |
| 1685 | block_start = data + 2; |
| 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_block4: |
| 1698 | SAFE_BYTE_GET (uvalue, data, 4, end); |
| 1699 | block_start = data + 4; |
| 1700 | if (block_start + uvalue > end) |
| 1701 | { |
| 1702 | warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| 1703 | uvalue = end - block_start; |
| 1704 | } |
| 1705 | if (do_loc) |
| 1706 | data = block_start + uvalue; |
| 1707 | else |
| 1708 | data = display_block (block_start, uvalue, end); |
| 1709 | break; |
| 1710 | |
| 1711 | case DW_FORM_strp: |
| 1712 | if (!do_loc) |
| 1713 | printf (_(" (indirect string, offset: 0x%s): %s"), |
| 1714 | dwarf_vmatoa ("x", uvalue), |
| 1715 | fetch_indirect_string (uvalue)); |
| 1716 | break; |
| 1717 | |
| 1718 | case DW_FORM_GNU_str_index: |
| 1719 | if (!do_loc) |
| 1720 | { |
| 1721 | const char *suffix = strrchr (section->name, '.'); |
| 1722 | int dwo = (suffix && strcmp (suffix, ".dwo") == 0) ? 1 : 0; |
| 1723 | |
| 1724 | printf (_(" (indexed string: 0x%s): %s"), |
| 1725 | dwarf_vmatoa ("x", uvalue), |
| 1726 | fetch_indexed_string (uvalue, this_set, offset_size, dwo)); |
| 1727 | } |
| 1728 | break; |
| 1729 | |
| 1730 | case DW_FORM_GNU_strp_alt: |
| 1731 | if (!do_loc) |
| 1732 | printf (_(" (alt indirect string, offset: 0x%s)"), |
| 1733 | dwarf_vmatoa ("x", uvalue)); |
| 1734 | break; |
| 1735 | |
| 1736 | case DW_FORM_indirect: |
| 1737 | /* Handled above. */ |
| 1738 | break; |
| 1739 | |
| 1740 | case DW_FORM_ref_sig8: |
| 1741 | if (!do_loc) |
| 1742 | { |
| 1743 | dwarf_vma high_bits; |
| 1744 | char buf[64]; |
| 1745 | |
| 1746 | SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end); |
| 1747 | printf (" signature: 0x%s", |
| 1748 | dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf))); |
| 1749 | } |
| 1750 | data += 8; |
| 1751 | break; |
| 1752 | |
| 1753 | case DW_FORM_GNU_addr_index: |
| 1754 | if (!do_loc) |
| 1755 | printf (_(" (addr_index: 0x%s): %s"), |
| 1756 | dwarf_vmatoa ("x", uvalue), |
| 1757 | fetch_indexed_value (uvalue * pointer_size, pointer_size)); |
| 1758 | break; |
| 1759 | |
| 1760 | default: |
| 1761 | warn (_("Unrecognized form: %lu\n"), form); |
| 1762 | break; |
| 1763 | } |
| 1764 | |
| 1765 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 1766 | && num_debug_info_entries == 0 |
| 1767 | && debug_info_p != NULL) |
| 1768 | { |
| 1769 | switch (attribute) |
| 1770 | { |
| 1771 | case DW_AT_frame_base: |
| 1772 | have_frame_base = 1; |
| 1773 | case DW_AT_location: |
| 1774 | case DW_AT_string_length: |
| 1775 | case DW_AT_return_addr: |
| 1776 | case DW_AT_data_member_location: |
| 1777 | case DW_AT_vtable_elem_location: |
| 1778 | case DW_AT_segment: |
| 1779 | case DW_AT_static_link: |
| 1780 | case DW_AT_use_location: |
| 1781 | case DW_AT_GNU_call_site_value: |
| 1782 | case DW_AT_GNU_call_site_data_value: |
| 1783 | case DW_AT_GNU_call_site_target: |
| 1784 | case DW_AT_GNU_call_site_target_clobbered: |
| 1785 | if ((dwarf_version < 4 |
| 1786 | && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| 1787 | || form == DW_FORM_sec_offset) |
| 1788 | { |
| 1789 | /* Process location list. */ |
| 1790 | unsigned int lmax = debug_info_p->max_loc_offsets; |
| 1791 | unsigned int num = debug_info_p->num_loc_offsets; |
| 1792 | |
| 1793 | if (lmax == 0 || num >= lmax) |
| 1794 | { |
| 1795 | lmax += 1024; |
| 1796 | debug_info_p->loc_offsets = (dwarf_vma *) |
| 1797 | xcrealloc (debug_info_p->loc_offsets, |
| 1798 | lmax, sizeof (*debug_info_p->loc_offsets)); |
| 1799 | debug_info_p->have_frame_base = (int *) |
| 1800 | xcrealloc (debug_info_p->have_frame_base, |
| 1801 | lmax, sizeof (*debug_info_p->have_frame_base)); |
| 1802 | debug_info_p->max_loc_offsets = lmax; |
| 1803 | } |
| 1804 | if (this_set != NULL) |
| 1805 | uvalue += this_set->section_offsets [DW_SECT_LOC]; |
| 1806 | debug_info_p->loc_offsets [num] = uvalue; |
| 1807 | debug_info_p->have_frame_base [num] = have_frame_base; |
| 1808 | debug_info_p->num_loc_offsets++; |
| 1809 | } |
| 1810 | break; |
| 1811 | |
| 1812 | case DW_AT_low_pc: |
| 1813 | if (need_base_address) |
| 1814 | debug_info_p->base_address = uvalue; |
| 1815 | break; |
| 1816 | |
| 1817 | case DW_AT_GNU_addr_base: |
| 1818 | debug_info_p->addr_base = uvalue; |
| 1819 | break; |
| 1820 | |
| 1821 | case DW_AT_GNU_ranges_base: |
| 1822 | debug_info_p->ranges_base = uvalue; |
| 1823 | break; |
| 1824 | |
| 1825 | case DW_AT_ranges: |
| 1826 | if ((dwarf_version < 4 |
| 1827 | && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| 1828 | || form == DW_FORM_sec_offset) |
| 1829 | { |
| 1830 | /* Process range list. */ |
| 1831 | unsigned int lmax = debug_info_p->max_range_lists; |
| 1832 | unsigned int num = debug_info_p->num_range_lists; |
| 1833 | |
| 1834 | if (lmax == 0 || num >= lmax) |
| 1835 | { |
| 1836 | lmax += 1024; |
| 1837 | debug_info_p->range_lists = (dwarf_vma *) |
| 1838 | xcrealloc (debug_info_p->range_lists, |
| 1839 | lmax, sizeof (*debug_info_p->range_lists)); |
| 1840 | debug_info_p->max_range_lists = lmax; |
| 1841 | } |
| 1842 | debug_info_p->range_lists [num] = uvalue; |
| 1843 | debug_info_p->num_range_lists++; |
| 1844 | } |
| 1845 | break; |
| 1846 | |
| 1847 | default: |
| 1848 | break; |
| 1849 | } |
| 1850 | } |
| 1851 | |
| 1852 | if (do_loc || attribute == 0) |
| 1853 | return data; |
| 1854 | |
| 1855 | /* For some attributes we can display further information. */ |
| 1856 | switch (attribute) |
| 1857 | { |
| 1858 | case DW_AT_inline: |
| 1859 | printf ("\t"); |
| 1860 | switch (uvalue) |
| 1861 | { |
| 1862 | case DW_INL_not_inlined: |
| 1863 | printf (_("(not inlined)")); |
| 1864 | break; |
| 1865 | case DW_INL_inlined: |
| 1866 | printf (_("(inlined)")); |
| 1867 | break; |
| 1868 | case DW_INL_declared_not_inlined: |
| 1869 | printf (_("(declared as inline but ignored)")); |
| 1870 | break; |
| 1871 | case DW_INL_declared_inlined: |
| 1872 | printf (_("(declared as inline and inlined)")); |
| 1873 | break; |
| 1874 | default: |
| 1875 | printf (_(" (Unknown inline attribute value: %s)"), |
| 1876 | dwarf_vmatoa ("x", uvalue)); |
| 1877 | break; |
| 1878 | } |
| 1879 | break; |
| 1880 | |
| 1881 | case DW_AT_language: |
| 1882 | printf ("\t"); |
| 1883 | switch (uvalue) |
| 1884 | { |
| 1885 | /* Ordered by the numeric value of these constants. */ |
| 1886 | case DW_LANG_C89: printf ("(ANSI C)"); break; |
| 1887 | case DW_LANG_C: printf ("(non-ANSI C)"); break; |
| 1888 | case DW_LANG_Ada83: printf ("(Ada)"); break; |
| 1889 | case DW_LANG_C_plus_plus: printf ("(C++)"); break; |
| 1890 | case DW_LANG_Cobol74: printf ("(Cobol 74)"); break; |
| 1891 | case DW_LANG_Cobol85: printf ("(Cobol 85)"); break; |
| 1892 | case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break; |
| 1893 | case DW_LANG_Fortran90: printf ("(Fortran 90)"); break; |
| 1894 | case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break; |
| 1895 | case DW_LANG_Modula2: printf ("(Modula 2)"); break; |
| 1896 | /* DWARF 2.1 values. */ |
| 1897 | case DW_LANG_Java: printf ("(Java)"); break; |
| 1898 | case DW_LANG_C99: printf ("(ANSI C99)"); break; |
| 1899 | case DW_LANG_Ada95: printf ("(ADA 95)"); break; |
| 1900 | case DW_LANG_Fortran95: printf ("(Fortran 95)"); break; |
| 1901 | /* DWARF 3 values. */ |
| 1902 | case DW_LANG_PLI: printf ("(PLI)"); break; |
| 1903 | case DW_LANG_ObjC: printf ("(Objective C)"); break; |
| 1904 | case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break; |
| 1905 | case DW_LANG_UPC: printf ("(Unified Parallel C)"); break; |
| 1906 | case DW_LANG_D: printf ("(D)"); break; |
| 1907 | /* DWARF 4 values. */ |
| 1908 | case DW_LANG_Python: printf ("(Python)"); break; |
| 1909 | /* DWARF 5 values. */ |
| 1910 | case DW_LANG_Go: printf ("(Go)"); break; |
| 1911 | /* MIPS extension. */ |
| 1912 | case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break; |
| 1913 | /* UPC extension. */ |
| 1914 | case DW_LANG_Upc: printf ("(Unified Parallel C)"); break; |
| 1915 | default: |
| 1916 | if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user) |
| 1917 | printf (_("(implementation defined: %s)"), |
| 1918 | dwarf_vmatoa ("x", uvalue)); |
| 1919 | else |
| 1920 | printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue)); |
| 1921 | break; |
| 1922 | } |
| 1923 | break; |
| 1924 | |
| 1925 | case DW_AT_encoding: |
| 1926 | printf ("\t"); |
| 1927 | switch (uvalue) |
| 1928 | { |
| 1929 | case DW_ATE_void: printf ("(void)"); break; |
| 1930 | case DW_ATE_address: printf ("(machine address)"); break; |
| 1931 | case DW_ATE_boolean: printf ("(boolean)"); break; |
| 1932 | case DW_ATE_complex_float: printf ("(complex float)"); break; |
| 1933 | case DW_ATE_float: printf ("(float)"); break; |
| 1934 | case DW_ATE_signed: printf ("(signed)"); break; |
| 1935 | case DW_ATE_signed_char: printf ("(signed char)"); break; |
| 1936 | case DW_ATE_unsigned: printf ("(unsigned)"); break; |
| 1937 | case DW_ATE_unsigned_char: printf ("(unsigned char)"); break; |
| 1938 | /* DWARF 2.1 values: */ |
| 1939 | case DW_ATE_imaginary_float: printf ("(imaginary float)"); break; |
| 1940 | case DW_ATE_decimal_float: printf ("(decimal float)"); break; |
| 1941 | /* DWARF 3 values: */ |
| 1942 | case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break; |
| 1943 | case DW_ATE_numeric_string: printf ("(numeric_string)"); break; |
| 1944 | case DW_ATE_edited: printf ("(edited)"); break; |
| 1945 | case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break; |
| 1946 | case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break; |
| 1947 | /* HP extensions: */ |
| 1948 | case DW_ATE_HP_float80: printf ("(HP_float80)"); break; |
| 1949 | case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break; |
| 1950 | case DW_ATE_HP_float128: printf ("(HP_float128)"); break; |
| 1951 | case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break; |
| 1952 | case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break; |
| 1953 | case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break; |
| 1954 | case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break; |
| 1955 | |
| 1956 | default: |
| 1957 | if (uvalue >= DW_ATE_lo_user |
| 1958 | && uvalue <= DW_ATE_hi_user) |
| 1959 | printf (_("(user defined type)")); |
| 1960 | else |
| 1961 | printf (_("(unknown type)")); |
| 1962 | break; |
| 1963 | } |
| 1964 | break; |
| 1965 | |
| 1966 | case DW_AT_accessibility: |
| 1967 | printf ("\t"); |
| 1968 | switch (uvalue) |
| 1969 | { |
| 1970 | case DW_ACCESS_public: printf ("(public)"); break; |
| 1971 | case DW_ACCESS_protected: printf ("(protected)"); break; |
| 1972 | case DW_ACCESS_private: printf ("(private)"); break; |
| 1973 | default: |
| 1974 | printf (_("(unknown accessibility)")); |
| 1975 | break; |
| 1976 | } |
| 1977 | break; |
| 1978 | |
| 1979 | case DW_AT_visibility: |
| 1980 | printf ("\t"); |
| 1981 | switch (uvalue) |
| 1982 | { |
| 1983 | case DW_VIS_local: printf ("(local)"); break; |
| 1984 | case DW_VIS_exported: printf ("(exported)"); break; |
| 1985 | case DW_VIS_qualified: printf ("(qualified)"); break; |
| 1986 | default: printf (_("(unknown visibility)")); break; |
| 1987 | } |
| 1988 | break; |
| 1989 | |
| 1990 | case DW_AT_virtuality: |
| 1991 | printf ("\t"); |
| 1992 | switch (uvalue) |
| 1993 | { |
| 1994 | case DW_VIRTUALITY_none: printf ("(none)"); break; |
| 1995 | case DW_VIRTUALITY_virtual: printf ("(virtual)"); break; |
| 1996 | case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break; |
| 1997 | default: printf (_("(unknown virtuality)")); break; |
| 1998 | } |
| 1999 | break; |
| 2000 | |
| 2001 | case DW_AT_identifier_case: |
| 2002 | printf ("\t"); |
| 2003 | switch (uvalue) |
| 2004 | { |
| 2005 | case DW_ID_case_sensitive: printf ("(case_sensitive)"); break; |
| 2006 | case DW_ID_up_case: printf ("(up_case)"); break; |
| 2007 | case DW_ID_down_case: printf ("(down_case)"); break; |
| 2008 | case DW_ID_case_insensitive: printf ("(case_insensitive)"); break; |
| 2009 | default: printf (_("(unknown case)")); break; |
| 2010 | } |
| 2011 | break; |
| 2012 | |
| 2013 | case DW_AT_calling_convention: |
| 2014 | printf ("\t"); |
| 2015 | switch (uvalue) |
| 2016 | { |
| 2017 | case DW_CC_normal: printf ("(normal)"); break; |
| 2018 | case DW_CC_program: printf ("(program)"); break; |
| 2019 | case DW_CC_nocall: printf ("(nocall)"); break; |
| 2020 | default: |
| 2021 | if (uvalue >= DW_CC_lo_user |
| 2022 | && uvalue <= DW_CC_hi_user) |
| 2023 | printf (_("(user defined)")); |
| 2024 | else |
| 2025 | printf (_("(unknown convention)")); |
| 2026 | } |
| 2027 | break; |
| 2028 | |
| 2029 | case DW_AT_ordering: |
| 2030 | printf ("\t"); |
| 2031 | switch (uvalue) |
| 2032 | { |
| 2033 | case -1: printf (_("(undefined)")); break; |
| 2034 | case 0: printf ("(row major)"); break; |
| 2035 | case 1: printf ("(column major)"); break; |
| 2036 | } |
| 2037 | break; |
| 2038 | |
| 2039 | case DW_AT_frame_base: |
| 2040 | have_frame_base = 1; |
| 2041 | case DW_AT_location: |
| 2042 | case DW_AT_string_length: |
| 2043 | case DW_AT_return_addr: |
| 2044 | case DW_AT_data_member_location: |
| 2045 | case DW_AT_vtable_elem_location: |
| 2046 | case DW_AT_segment: |
| 2047 | case DW_AT_static_link: |
| 2048 | case DW_AT_use_location: |
| 2049 | case DW_AT_GNU_call_site_value: |
| 2050 | case DW_AT_GNU_call_site_data_value: |
| 2051 | case DW_AT_GNU_call_site_target: |
| 2052 | case DW_AT_GNU_call_site_target_clobbered: |
| 2053 | if ((dwarf_version < 4 |
| 2054 | && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| 2055 | || form == DW_FORM_sec_offset) |
| 2056 | printf (_(" (location list)")); |
| 2057 | /* Fall through. */ |
| 2058 | case DW_AT_allocated: |
| 2059 | case DW_AT_associated: |
| 2060 | case DW_AT_data_location: |
| 2061 | case DW_AT_stride: |
| 2062 | case DW_AT_upper_bound: |
| 2063 | case DW_AT_lower_bound: |
| 2064 | if (block_start) |
| 2065 | { |
| 2066 | int need_frame_base; |
| 2067 | |
| 2068 | printf ("\t("); |
| 2069 | need_frame_base = decode_location_expression (block_start, |
| 2070 | pointer_size, |
| 2071 | offset_size, |
| 2072 | dwarf_version, |
| 2073 | uvalue, |
| 2074 | cu_offset, section); |
| 2075 | printf (")"); |
| 2076 | if (need_frame_base && !have_frame_base) |
| 2077 | printf (_(" [without DW_AT_frame_base]")); |
| 2078 | } |
| 2079 | break; |
| 2080 | |
| 2081 | case DW_AT_import: |
| 2082 | { |
| 2083 | if (form == DW_FORM_ref_sig8 |
| 2084 | || form == DW_FORM_GNU_ref_alt) |
| 2085 | break; |
| 2086 | |
| 2087 | if (form == DW_FORM_ref1 |
| 2088 | || form == DW_FORM_ref2 |
| 2089 | || form == DW_FORM_ref4 |
| 2090 | || form == DW_FORM_ref_udata) |
| 2091 | uvalue += cu_offset; |
| 2092 | |
| 2093 | if (uvalue >= section->size) |
| 2094 | warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"), |
| 2095 | dwarf_vmatoa ("x", uvalue), |
| 2096 | (unsigned long) (orig_data - section->start)); |
| 2097 | else |
| 2098 | { |
| 2099 | unsigned long abbrev_number; |
| 2100 | abbrev_entry * entry; |
| 2101 | |
| 2102 | abbrev_number = read_uleb128 (section->start + uvalue, NULL, end); |
| 2103 | |
| 2104 | printf (_("\t[Abbrev Number: %ld"), abbrev_number); |
| 2105 | /* Don't look up abbrev for DW_FORM_ref_addr, as it very often will |
| 2106 | use different abbrev table, and we don't track .debug_info chunks |
| 2107 | yet. */ |
| 2108 | if (form != DW_FORM_ref_addr) |
| 2109 | { |
| 2110 | for (entry = first_abbrev; entry != NULL; entry = entry->next) |
| 2111 | if (entry->entry == abbrev_number) |
| 2112 | break; |
| 2113 | if (entry != NULL) |
| 2114 | printf (" (%s)", get_TAG_name (entry->tag)); |
| 2115 | } |
| 2116 | printf ("]"); |
| 2117 | } |
| 2118 | } |
| 2119 | break; |
| 2120 | |
| 2121 | default: |
| 2122 | break; |
| 2123 | } |
| 2124 | |
| 2125 | return data; |
| 2126 | } |
| 2127 | |
| 2128 | static const char * |
| 2129 | get_AT_name (unsigned long attribute) |
| 2130 | { |
| 2131 | const char *name; |
| 2132 | |
| 2133 | if (attribute == 0) |
| 2134 | return "DW_AT value: 0"; |
| 2135 | |
| 2136 | /* One value is shared by the MIPS and HP extensions: */ |
| 2137 | if (attribute == DW_AT_MIPS_fde) |
| 2138 | return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable"; |
| 2139 | |
| 2140 | name = get_DW_AT_name (attribute); |
| 2141 | |
| 2142 | if (name == NULL) |
| 2143 | { |
| 2144 | static char buffer[100]; |
| 2145 | |
| 2146 | snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), |
| 2147 | attribute); |
| 2148 | return buffer; |
| 2149 | } |
| 2150 | |
| 2151 | return name; |
| 2152 | } |
| 2153 | |
| 2154 | static unsigned char * |
| 2155 | read_and_display_attr (unsigned long attribute, |
| 2156 | unsigned long form, |
| 2157 | unsigned char * data, |
| 2158 | unsigned char * end, |
| 2159 | dwarf_vma cu_offset, |
| 2160 | dwarf_vma pointer_size, |
| 2161 | dwarf_vma offset_size, |
| 2162 | int dwarf_version, |
| 2163 | debug_info * debug_info_p, |
| 2164 | int do_loc, |
| 2165 | struct dwarf_section * section, |
| 2166 | struct cu_tu_set * this_set) |
| 2167 | { |
| 2168 | if (!do_loc) |
| 2169 | printf (" %-18s:", get_AT_name (attribute)); |
| 2170 | data = read_and_display_attr_value (attribute, form, data, end, |
| 2171 | cu_offset, pointer_size, offset_size, |
| 2172 | dwarf_version, debug_info_p, |
| 2173 | do_loc, section, this_set); |
| 2174 | if (!do_loc) |
| 2175 | printf ("\n"); |
| 2176 | return data; |
| 2177 | } |
| 2178 | |
| 2179 | /* Process the contents of a .debug_info section. If do_loc is non-zero |
| 2180 | then we are scanning for location lists and we do not want to display |
| 2181 | anything to the user. If do_types is non-zero, we are processing |
| 2182 | a .debug_types section instead of a .debug_info section. */ |
| 2183 | |
| 2184 | static int |
| 2185 | process_debug_info (struct dwarf_section *section, |
| 2186 | void *file, |
| 2187 | enum dwarf_section_display_enum abbrev_sec, |
| 2188 | int do_loc, |
| 2189 | int do_types) |
| 2190 | { |
| 2191 | unsigned char *start = section->start; |
| 2192 | unsigned char *end = start + section->size; |
| 2193 | unsigned char *section_begin; |
| 2194 | unsigned int unit; |
| 2195 | unsigned int num_units = 0; |
| 2196 | |
| 2197 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 2198 | && num_debug_info_entries == 0 |
| 2199 | && ! do_types) |
| 2200 | { |
| 2201 | dwarf_vma length; |
| 2202 | |
| 2203 | /* First scan the section to get the number of comp units. */ |
| 2204 | for (section_begin = start, num_units = 0; section_begin < end; |
| 2205 | num_units ++) |
| 2206 | { |
| 2207 | /* Read the first 4 bytes. For a 32-bit DWARF section, this |
| 2208 | will be the length. For a 64-bit DWARF section, it'll be |
| 2209 | the escape code 0xffffffff followed by an 8 byte length. */ |
| 2210 | SAFE_BYTE_GET (length, section_begin, 4, end); |
| 2211 | |
| 2212 | if (length == 0xffffffff) |
| 2213 | { |
| 2214 | SAFE_BYTE_GET (length, section_begin + 4, 8, end); |
| 2215 | section_begin += length + 12; |
| 2216 | } |
| 2217 | else if (length >= 0xfffffff0 && length < 0xffffffff) |
| 2218 | { |
| 2219 | warn (_("Reserved length value (0x%s) found in section %s\n"), |
| 2220 | dwarf_vmatoa ("x", length), section->name); |
| 2221 | return 0; |
| 2222 | } |
| 2223 | else |
| 2224 | section_begin += length + 4; |
| 2225 | |
| 2226 | /* Negative values are illegal, they may even cause infinite |
| 2227 | looping. This can happen if we can't accurately apply |
| 2228 | relocations to an object file. */ |
| 2229 | if ((signed long) length <= 0) |
| 2230 | { |
| 2231 | warn (_("Corrupt unit length (0x%s) found in section %s\n"), |
| 2232 | dwarf_vmatoa ("x", length), section->name); |
| 2233 | return 0; |
| 2234 | } |
| 2235 | } |
| 2236 | |
| 2237 | if (num_units == 0) |
| 2238 | { |
| 2239 | error (_("No comp units in %s section ?\n"), section->name); |
| 2240 | return 0; |
| 2241 | } |
| 2242 | |
| 2243 | /* Then allocate an array to hold the information. */ |
| 2244 | debug_information = (debug_info *) cmalloc (num_units, |
| 2245 | sizeof (* debug_information)); |
| 2246 | if (debug_information == NULL) |
| 2247 | { |
| 2248 | error (_("Not enough memory for a debug info array of %u entries\n"), |
| 2249 | num_units); |
| 2250 | return 0; |
| 2251 | } |
| 2252 | } |
| 2253 | |
| 2254 | if (!do_loc) |
| 2255 | { |
| 2256 | if (dwarf_start_die == 0) |
| 2257 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 2258 | |
| 2259 | load_debug_section (str, file); |
| 2260 | load_debug_section (str_dwo, file); |
| 2261 | load_debug_section (str_index, file); |
| 2262 | load_debug_section (str_index_dwo, file); |
| 2263 | load_debug_section (debug_addr, file); |
| 2264 | } |
| 2265 | |
| 2266 | load_debug_section (abbrev_sec, file); |
| 2267 | if (debug_displays [abbrev_sec].section.start == NULL) |
| 2268 | { |
| 2269 | warn (_("Unable to locate %s section!\n"), |
| 2270 | debug_displays [abbrev_sec].section.name); |
| 2271 | return 0; |
| 2272 | } |
| 2273 | |
| 2274 | for (section_begin = start, unit = 0; start < end; unit++) |
| 2275 | { |
| 2276 | DWARF2_Internal_CompUnit compunit; |
| 2277 | unsigned char *hdrptr; |
| 2278 | unsigned char *tags; |
| 2279 | int level, last_level, saved_level; |
| 2280 | dwarf_vma cu_offset; |
| 2281 | unsigned int offset_size; |
| 2282 | int initial_length_size; |
| 2283 | dwarf_vma signature_high = 0; |
| 2284 | dwarf_vma signature_low = 0; |
| 2285 | dwarf_vma type_offset = 0; |
| 2286 | struct cu_tu_set *this_set; |
| 2287 | dwarf_vma abbrev_base; |
| 2288 | size_t abbrev_size; |
| 2289 | |
| 2290 | hdrptr = start; |
| 2291 | |
| 2292 | SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 4, end); |
| 2293 | |
| 2294 | if (compunit.cu_length == 0xffffffff) |
| 2295 | { |
| 2296 | SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 8, end); |
| 2297 | offset_size = 8; |
| 2298 | initial_length_size = 12; |
| 2299 | } |
| 2300 | else |
| 2301 | { |
| 2302 | offset_size = 4; |
| 2303 | initial_length_size = 4; |
| 2304 | } |
| 2305 | |
| 2306 | SAFE_BYTE_GET_AND_INC (compunit.cu_version, hdrptr, 2, end); |
| 2307 | |
| 2308 | cu_offset = start - section_begin; |
| 2309 | |
| 2310 | this_set = find_cu_tu_set_v2 (cu_offset, do_types); |
| 2311 | |
| 2312 | SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end); |
| 2313 | |
| 2314 | if (this_set == NULL) |
| 2315 | { |
| 2316 | abbrev_base = 0; |
| 2317 | abbrev_size = debug_displays [abbrev_sec].section.size; |
| 2318 | } |
| 2319 | else |
| 2320 | { |
| 2321 | abbrev_base = this_set->section_offsets [DW_SECT_ABBREV]; |
| 2322 | abbrev_size = this_set->section_sizes [DW_SECT_ABBREV]; |
| 2323 | } |
| 2324 | |
| 2325 | SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end); |
| 2326 | /* PR 17512: file: 001-108546-0.001:0.1. */ |
| 2327 | if (compunit.cu_pointer_size < 2 || compunit.cu_pointer_size > 8) |
| 2328 | { |
| 2329 | warn (_("Invalid pointer size (%d) in compunit header, using %d instead\n"), |
| 2330 | compunit.cu_pointer_size, offset_size); |
| 2331 | compunit.cu_pointer_size = offset_size; |
| 2332 | } |
| 2333 | |
| 2334 | if (do_types) |
| 2335 | { |
| 2336 | SAFE_BYTE_GET64 (hdrptr, &signature_high, &signature_low, end); |
| 2337 | hdrptr += 8; |
| 2338 | SAFE_BYTE_GET_AND_INC (type_offset, hdrptr, offset_size, end); |
| 2339 | } |
| 2340 | |
| 2341 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 2342 | && num_debug_info_entries == 0 |
| 2343 | && ! do_types) |
| 2344 | { |
| 2345 | debug_information [unit].cu_offset = cu_offset; |
| 2346 | debug_information [unit].pointer_size |
| 2347 | = compunit.cu_pointer_size; |
| 2348 | debug_information [unit].offset_size = offset_size; |
| 2349 | debug_information [unit].dwarf_version = compunit.cu_version; |
| 2350 | debug_information [unit].base_address = 0; |
| 2351 | debug_information [unit].addr_base = DEBUG_INFO_UNAVAILABLE; |
| 2352 | debug_information [unit].ranges_base = DEBUG_INFO_UNAVAILABLE; |
| 2353 | debug_information [unit].loc_offsets = NULL; |
| 2354 | debug_information [unit].have_frame_base = NULL; |
| 2355 | debug_information [unit].max_loc_offsets = 0; |
| 2356 | debug_information [unit].num_loc_offsets = 0; |
| 2357 | debug_information [unit].range_lists = NULL; |
| 2358 | debug_information [unit].max_range_lists= 0; |
| 2359 | debug_information [unit].num_range_lists = 0; |
| 2360 | } |
| 2361 | |
| 2362 | if (!do_loc && dwarf_start_die == 0) |
| 2363 | { |
| 2364 | printf (_(" Compilation Unit @ offset 0x%s:\n"), |
| 2365 | dwarf_vmatoa ("x", cu_offset)); |
| 2366 | printf (_(" Length: 0x%s (%s)\n"), |
| 2367 | dwarf_vmatoa ("x", compunit.cu_length), |
| 2368 | offset_size == 8 ? "64-bit" : "32-bit"); |
| 2369 | printf (_(" Version: %d\n"), compunit.cu_version); |
| 2370 | printf (_(" Abbrev Offset: 0x%s\n"), |
| 2371 | dwarf_vmatoa ("x", compunit.cu_abbrev_offset)); |
| 2372 | printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size); |
| 2373 | if (do_types) |
| 2374 | { |
| 2375 | char buf[64]; |
| 2376 | |
| 2377 | printf (_(" Signature: 0x%s\n"), |
| 2378 | dwarf_vmatoa64 (signature_high, signature_low, |
| 2379 | buf, sizeof (buf))); |
| 2380 | printf (_(" Type Offset: 0x%s\n"), |
| 2381 | dwarf_vmatoa ("x", type_offset)); |
| 2382 | } |
| 2383 | if (this_set != NULL) |
| 2384 | { |
| 2385 | dwarf_vma *offsets = this_set->section_offsets; |
| 2386 | size_t *sizes = this_set->section_sizes; |
| 2387 | |
| 2388 | printf (_(" Section contributions:\n")); |
| 2389 | printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"), |
| 2390 | dwarf_vmatoa ("x", offsets [DW_SECT_ABBREV]), |
| 2391 | dwarf_vmatoa ("x", sizes [DW_SECT_ABBREV])); |
| 2392 | printf (_(" .debug_line.dwo: 0x%s 0x%s\n"), |
| 2393 | dwarf_vmatoa ("x", offsets [DW_SECT_LINE]), |
| 2394 | dwarf_vmatoa ("x", sizes [DW_SECT_LINE])); |
| 2395 | printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"), |
| 2396 | dwarf_vmatoa ("x", offsets [DW_SECT_LOC]), |
| 2397 | dwarf_vmatoa ("x", sizes [DW_SECT_LOC])); |
| 2398 | printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"), |
| 2399 | dwarf_vmatoa ("x", offsets [DW_SECT_STR_OFFSETS]), |
| 2400 | dwarf_vmatoa ("x", sizes [DW_SECT_STR_OFFSETS])); |
| 2401 | } |
| 2402 | } |
| 2403 | |
| 2404 | if (cu_offset + compunit.cu_length + initial_length_size |
| 2405 | > section->size) |
| 2406 | { |
| 2407 | warn (_("Debug info is corrupted, length of CU at %s" |
| 2408 | " extends beyond end of section (length = %s)\n"), |
| 2409 | dwarf_vmatoa ("x", cu_offset), |
| 2410 | dwarf_vmatoa ("x", compunit.cu_length)); |
| 2411 | break; |
| 2412 | } |
| 2413 | tags = hdrptr; |
| 2414 | start += compunit.cu_length + initial_length_size; |
| 2415 | |
| 2416 | if (compunit.cu_version != 2 |
| 2417 | && compunit.cu_version != 3 |
| 2418 | && compunit.cu_version != 4) |
| 2419 | { |
| 2420 | warn (_("CU at offset %s contains corrupt or " |
| 2421 | "unsupported version number: %d.\n"), |
| 2422 | dwarf_vmatoa ("x", cu_offset), compunit.cu_version); |
| 2423 | continue; |
| 2424 | } |
| 2425 | |
| 2426 | free_abbrevs (); |
| 2427 | |
| 2428 | /* Process the abbrevs used by this compilation unit. */ |
| 2429 | if (compunit.cu_abbrev_offset >= abbrev_size) |
| 2430 | warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"), |
| 2431 | (unsigned long) compunit.cu_abbrev_offset, |
| 2432 | (unsigned long) abbrev_size); |
| 2433 | else |
| 2434 | process_abbrev_section |
| 2435 | (((unsigned char *) debug_displays [abbrev_sec].section.start |
| 2436 | + abbrev_base + compunit.cu_abbrev_offset), |
| 2437 | ((unsigned char *) debug_displays [abbrev_sec].section.start |
| 2438 | + abbrev_base + abbrev_size)); |
| 2439 | |
| 2440 | level = 0; |
| 2441 | last_level = level; |
| 2442 | saved_level = -1; |
| 2443 | while (tags < start) |
| 2444 | { |
| 2445 | unsigned int bytes_read; |
| 2446 | unsigned long abbrev_number; |
| 2447 | unsigned long die_offset; |
| 2448 | abbrev_entry *entry; |
| 2449 | abbrev_attr *attr; |
| 2450 | int do_printing = 1; |
| 2451 | |
| 2452 | die_offset = tags - section_begin; |
| 2453 | |
| 2454 | abbrev_number = read_uleb128 (tags, & bytes_read, start); |
| 2455 | tags += bytes_read; |
| 2456 | |
| 2457 | /* A null DIE marks the end of a list of siblings or it may also be |
| 2458 | a section padding. */ |
| 2459 | if (abbrev_number == 0) |
| 2460 | { |
| 2461 | /* Check if it can be a section padding for the last CU. */ |
| 2462 | if (level == 0 && start == end) |
| 2463 | { |
| 2464 | unsigned char *chk; |
| 2465 | |
| 2466 | for (chk = tags; chk < start; chk++) |
| 2467 | if (*chk != 0) |
| 2468 | break; |
| 2469 | if (chk == start) |
| 2470 | break; |
| 2471 | } |
| 2472 | |
| 2473 | if (!do_loc && die_offset >= dwarf_start_die |
| 2474 | && (dwarf_cutoff_level == -1 |
| 2475 | || level < dwarf_cutoff_level)) |
| 2476 | printf (_(" <%d><%lx>: Abbrev Number: 0\n"), |
| 2477 | level, die_offset); |
| 2478 | |
| 2479 | --level; |
| 2480 | if (level < 0) |
| 2481 | { |
| 2482 | static unsigned num_bogus_warns = 0; |
| 2483 | |
| 2484 | if (num_bogus_warns < 3) |
| 2485 | { |
| 2486 | warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"), |
| 2487 | die_offset, section->name); |
| 2488 | num_bogus_warns ++; |
| 2489 | if (num_bogus_warns == 3) |
| 2490 | warn (_("Further warnings about bogus end-of-sibling markers suppressed\n")); |
| 2491 | } |
| 2492 | } |
| 2493 | if (dwarf_start_die != 0 && level < saved_level) |
| 2494 | return 1; |
| 2495 | continue; |
| 2496 | } |
| 2497 | |
| 2498 | if (!do_loc) |
| 2499 | { |
| 2500 | if (dwarf_start_die != 0 && die_offset < dwarf_start_die) |
| 2501 | do_printing = 0; |
| 2502 | else |
| 2503 | { |
| 2504 | if (dwarf_start_die != 0 && die_offset == dwarf_start_die) |
| 2505 | saved_level = level; |
| 2506 | do_printing = (dwarf_cutoff_level == -1 |
| 2507 | || level < dwarf_cutoff_level); |
| 2508 | if (do_printing) |
| 2509 | printf (_(" <%d><%lx>: Abbrev Number: %lu"), |
| 2510 | level, die_offset, abbrev_number); |
| 2511 | else if (dwarf_cutoff_level == -1 |
| 2512 | || last_level < dwarf_cutoff_level) |
| 2513 | printf (_(" <%d><%lx>: ...\n"), level, die_offset); |
| 2514 | last_level = level; |
| 2515 | } |
| 2516 | } |
| 2517 | |
| 2518 | /* Scan through the abbreviation list until we reach the |
| 2519 | correct entry. */ |
| 2520 | for (entry = first_abbrev; |
| 2521 | entry && entry->entry != abbrev_number; |
| 2522 | entry = entry->next) |
| 2523 | continue; |
| 2524 | |
| 2525 | if (entry == NULL) |
| 2526 | { |
| 2527 | if (!do_loc && do_printing) |
| 2528 | { |
| 2529 | printf ("\n"); |
| 2530 | fflush (stdout); |
| 2531 | } |
| 2532 | warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"), |
| 2533 | die_offset, abbrev_number); |
| 2534 | return 0; |
| 2535 | } |
| 2536 | |
| 2537 | if (!do_loc && do_printing) |
| 2538 | printf (" (%s)\n", get_TAG_name (entry->tag)); |
| 2539 | |
| 2540 | switch (entry->tag) |
| 2541 | { |
| 2542 | default: |
| 2543 | need_base_address = 0; |
| 2544 | break; |
| 2545 | case DW_TAG_compile_unit: |
| 2546 | need_base_address = 1; |
| 2547 | break; |
| 2548 | case DW_TAG_entry_point: |
| 2549 | case DW_TAG_subprogram: |
| 2550 | need_base_address = 0; |
| 2551 | /* Assuming that there is no DW_AT_frame_base. */ |
| 2552 | have_frame_base = 0; |
| 2553 | break; |
| 2554 | } |
| 2555 | |
| 2556 | for (attr = entry->first_attr; |
| 2557 | attr && attr->attribute; |
| 2558 | attr = attr->next) |
| 2559 | { |
| 2560 | debug_info *arg; |
| 2561 | |
| 2562 | if (! do_loc && do_printing) |
| 2563 | /* Show the offset from where the tag was extracted. */ |
| 2564 | printf (" <%lx>", (unsigned long)(tags - section_begin)); |
| 2565 | |
| 2566 | arg = debug_information; |
| 2567 | if (debug_information) |
| 2568 | arg += unit; |
| 2569 | |
| 2570 | tags = read_and_display_attr (attr->attribute, |
| 2571 | attr->form, |
| 2572 | tags, |
| 2573 | end, |
| 2574 | cu_offset, |
| 2575 | compunit.cu_pointer_size, |
| 2576 | offset_size, |
| 2577 | compunit.cu_version, |
| 2578 | arg, |
| 2579 | do_loc || ! do_printing, |
| 2580 | section, |
| 2581 | this_set); |
| 2582 | } |
| 2583 | |
| 2584 | if (entry->children) |
| 2585 | ++level; |
| 2586 | } |
| 2587 | } |
| 2588 | |
| 2589 | /* Set num_debug_info_entries here so that it can be used to check if |
| 2590 | we need to process .debug_loc and .debug_ranges sections. */ |
| 2591 | if ((do_loc || do_debug_loc || do_debug_ranges) |
| 2592 | && num_debug_info_entries == 0 |
| 2593 | && ! do_types) |
| 2594 | num_debug_info_entries = num_units; |
| 2595 | |
| 2596 | if (!do_loc) |
| 2597 | printf ("\n"); |
| 2598 | |
| 2599 | return 1; |
| 2600 | } |
| 2601 | |
| 2602 | /* Locate and scan the .debug_info section in the file and record the pointer |
| 2603 | sizes and offsets for the compilation units in it. Usually an executable |
| 2604 | will have just one pointer size, but this is not guaranteed, and so we try |
| 2605 | not to make any assumptions. Returns zero upon failure, or the number of |
| 2606 | compilation units upon success. */ |
| 2607 | |
| 2608 | static unsigned int |
| 2609 | load_debug_info (void * file) |
| 2610 | { |
| 2611 | /* Reset the last pointer size so that we can issue correct error |
| 2612 | messages if we are displaying the contents of more than one section. */ |
| 2613 | last_pointer_size = 0; |
| 2614 | warned_about_missing_comp_units = FALSE; |
| 2615 | |
| 2616 | /* If we have already tried and failed to load the .debug_info |
| 2617 | section then do not bother to repeat the task. */ |
| 2618 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
| 2619 | return 0; |
| 2620 | |
| 2621 | /* If we already have the information there is nothing else to do. */ |
| 2622 | if (num_debug_info_entries > 0) |
| 2623 | return num_debug_info_entries; |
| 2624 | |
| 2625 | /* If this is a DWARF package file, load the CU and TU indexes. */ |
| 2626 | load_cu_tu_indexes (file); |
| 2627 | |
| 2628 | if (load_debug_section (info, file) |
| 2629 | && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0)) |
| 2630 | return num_debug_info_entries; |
| 2631 | else if (load_debug_section (info_dwo, file) |
| 2632 | && process_debug_info (&debug_displays [info_dwo].section, file, |
| 2633 | abbrev_dwo, 1, 0)) |
| 2634 | return num_debug_info_entries; |
| 2635 | |
| 2636 | num_debug_info_entries = DEBUG_INFO_UNAVAILABLE; |
| 2637 | return 0; |
| 2638 | } |
| 2639 | |
| 2640 | /* Read a DWARF .debug_line section header starting at DATA. |
| 2641 | Upon success returns an updated DATA pointer and the LINFO |
| 2642 | structure and the END_OF_SEQUENCE pointer will be filled in. |
| 2643 | Otherwise returns NULL. */ |
| 2644 | |
| 2645 | static unsigned char * |
| 2646 | read_debug_line_header (struct dwarf_section * section, |
| 2647 | unsigned char * data, |
| 2648 | unsigned char * end, |
| 2649 | DWARF2_Internal_LineInfo * linfo, |
| 2650 | unsigned char ** end_of_sequence) |
| 2651 | { |
| 2652 | unsigned char *hdrptr; |
| 2653 | unsigned int offset_size; |
| 2654 | unsigned int initial_length_size; |
| 2655 | |
| 2656 | /* Extract information from the Line Number Program Header. |
| 2657 | (section 6.2.4 in the Dwarf3 doc). */ |
| 2658 | hdrptr = data; |
| 2659 | |
| 2660 | /* Get and check the length of the block. */ |
| 2661 | SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 4, end); |
| 2662 | |
| 2663 | if (linfo->li_length == 0xffffffff) |
| 2664 | { |
| 2665 | /* This section is 64-bit DWARF 3. */ |
| 2666 | SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 8, end); |
| 2667 | offset_size = 8; |
| 2668 | initial_length_size = 12; |
| 2669 | } |
| 2670 | else |
| 2671 | { |
| 2672 | offset_size = 4; |
| 2673 | initial_length_size = 4; |
| 2674 | } |
| 2675 | |
| 2676 | if (linfo->li_length + initial_length_size > section->size) |
| 2677 | { |
| 2678 | /* If the length is just a bias against the initial_length_size then |
| 2679 | this means that the field has a relocation against it which has not |
| 2680 | been applied. (Ie we are dealing with an object file, not a linked |
| 2681 | binary). Do not complain but instead assume that the rest of the |
| 2682 | section applies to this particular header. */ |
| 2683 | if (linfo->li_length == - initial_length_size) |
| 2684 | { |
| 2685 | linfo->li_length = section->size - initial_length_size; |
| 2686 | } |
| 2687 | else |
| 2688 | { |
| 2689 | warn (_("The line info appears to be corrupt - the section is too small\n")); |
| 2690 | return NULL; |
| 2691 | } |
| 2692 | } |
| 2693 | |
| 2694 | /* Get and check the version number. */ |
| 2695 | SAFE_BYTE_GET_AND_INC (linfo->li_version, hdrptr, 2, end); |
| 2696 | |
| 2697 | if (linfo->li_version != 2 |
| 2698 | && linfo->li_version != 3 |
| 2699 | && linfo->li_version != 4) |
| 2700 | { |
| 2701 | warn (_("Only DWARF version 2, 3 and 4 line info is currently supported.\n")); |
| 2702 | return NULL; |
| 2703 | } |
| 2704 | |
| 2705 | SAFE_BYTE_GET_AND_INC (linfo->li_prologue_length, hdrptr, offset_size, end); |
| 2706 | SAFE_BYTE_GET_AND_INC (linfo->li_min_insn_length, hdrptr, 1, end); |
| 2707 | |
| 2708 | if (linfo->li_version >= 4) |
| 2709 | { |
| 2710 | SAFE_BYTE_GET_AND_INC (linfo->li_max_ops_per_insn, hdrptr, 1, end); |
| 2711 | |
| 2712 | if (linfo->li_max_ops_per_insn == 0) |
| 2713 | { |
| 2714 | warn (_("Invalid maximum operations per insn.\n")); |
| 2715 | return NULL; |
| 2716 | } |
| 2717 | } |
| 2718 | else |
| 2719 | linfo->li_max_ops_per_insn = 1; |
| 2720 | |
| 2721 | SAFE_BYTE_GET_AND_INC (linfo->li_default_is_stmt, hdrptr, 1, end); |
| 2722 | SAFE_SIGNED_BYTE_GET_AND_INC (linfo->li_line_base, hdrptr, 1, end); |
| 2723 | SAFE_BYTE_GET_AND_INC (linfo->li_line_range, hdrptr, 1, end); |
| 2724 | SAFE_BYTE_GET_AND_INC (linfo->li_opcode_base, hdrptr, 1, end); |
| 2725 | |
| 2726 | * end_of_sequence = data + linfo->li_length + initial_length_size; |
| 2727 | /* PR 17512: file:002-117414-0.004. */ |
| 2728 | if (* end_of_sequence > end) |
| 2729 | { |
| 2730 | warn (_("Line length %lld extends beyond end of section\n"), linfo->li_length); |
| 2731 | * end_of_sequence = end; |
| 2732 | return NULL; |
| 2733 | } |
| 2734 | |
| 2735 | return hdrptr; |
| 2736 | } |
| 2737 | |
| 2738 | static int |
| 2739 | display_debug_lines_raw (struct dwarf_section *section, |
| 2740 | unsigned char *data, |
| 2741 | unsigned char *end) |
| 2742 | { |
| 2743 | unsigned char *start = section->start; |
| 2744 | |
| 2745 | printf (_("Raw dump of debug contents of section %s:\n\n"), |
| 2746 | section->name); |
| 2747 | |
| 2748 | while (data < end) |
| 2749 | { |
| 2750 | static DWARF2_Internal_LineInfo saved_linfo; |
| 2751 | DWARF2_Internal_LineInfo linfo; |
| 2752 | unsigned char *standard_opcodes; |
| 2753 | unsigned char *end_of_sequence; |
| 2754 | unsigned int last_dir_entry = 0; |
| 2755 | int i; |
| 2756 | |
| 2757 | if (const_strneq (section->name, ".debug_line.") |
| 2758 | /* Note: the following does not apply to .debug_line.dwo sections. |
| 2759 | These are full debug_line sections. */ |
| 2760 | && strcmp (section->name, ".debug_line.dwo") != 0) |
| 2761 | { |
| 2762 | /* Sections named .debug_line.<foo> are fragments of a .debug_line |
| 2763 | section containing just the Line Number Statements. They are |
| 2764 | created by the assembler and intended to be used alongside gcc's |
| 2765 | -ffunction-sections command line option. When the linker's |
| 2766 | garbage collection decides to discard a .text.<foo> section it |
| 2767 | can then also discard the line number information in .debug_line.<foo>. |
| 2768 | |
| 2769 | Since the section is a fragment it does not have the details |
| 2770 | needed to fill out a LineInfo structure, so instead we use the |
| 2771 | details from the last full debug_line section that we processed. */ |
| 2772 | end_of_sequence = end; |
| 2773 | standard_opcodes = NULL; |
| 2774 | linfo = saved_linfo; |
| 2775 | reset_state_machine (linfo.li_default_is_stmt); |
| 2776 | } |
| 2777 | else |
| 2778 | { |
| 2779 | unsigned char * hdrptr; |
| 2780 | |
| 2781 | if ((hdrptr = read_debug_line_header (section, data, end, & linfo, |
| 2782 | & end_of_sequence)) == NULL) |
| 2783 | return 0; |
| 2784 | |
| 2785 | printf (_(" Offset: 0x%lx\n"), (long)(data - start)); |
| 2786 | printf (_(" Length: %ld\n"), (long) linfo.li_length); |
| 2787 | printf (_(" DWARF Version: %d\n"), linfo.li_version); |
| 2788 | printf (_(" Prologue Length: %d\n"), linfo.li_prologue_length); |
| 2789 | printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length); |
| 2790 | if (linfo.li_version >= 4) |
| 2791 | printf (_(" Maximum Ops per Instruction: %d\n"), linfo.li_max_ops_per_insn); |
| 2792 | printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt); |
| 2793 | printf (_(" Line Base: %d\n"), linfo.li_line_base); |
| 2794 | printf (_(" Line Range: %d\n"), linfo.li_line_range); |
| 2795 | printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base); |
| 2796 | |
| 2797 | /* PR 17512: file: 1665-6428-0.004. */ |
| 2798 | if (linfo.li_line_range == 0) |
| 2799 | { |
| 2800 | warn (_("Line range of 0 is invalid, using 1 instead\n")); |
| 2801 | linfo.li_line_range = 1; |
| 2802 | } |
| 2803 | |
| 2804 | reset_state_machine (linfo.li_default_is_stmt); |
| 2805 | |
| 2806 | /* Display the contents of the Opcodes table. */ |
| 2807 | standard_opcodes = hdrptr; |
| 2808 | |
| 2809 | /* PR 17512: file: 002-417945-0.004. */ |
| 2810 | if (standard_opcodes + linfo.li_opcode_base >= end) |
| 2811 | { |
| 2812 | warn (_("Line Base extends beyond end of section\n")); |
| 2813 | return 0; |
| 2814 | } |
| 2815 | |
| 2816 | printf (_("\n Opcodes:\n")); |
| 2817 | |
| 2818 | for (i = 1; i < linfo.li_opcode_base; i++) |
| 2819 | printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); |
| 2820 | |
| 2821 | /* Display the contents of the Directory table. */ |
| 2822 | data = standard_opcodes + linfo.li_opcode_base - 1; |
| 2823 | |
| 2824 | if (*data == 0) |
| 2825 | printf (_("\n The Directory Table is empty.\n")); |
| 2826 | else |
| 2827 | { |
| 2828 | printf (_("\n The Directory Table (offset 0x%lx):\n"), |
| 2829 | (long)(data - start)); |
| 2830 | |
| 2831 | while (data < end && *data != 0) |
| 2832 | { |
| 2833 | printf (" %d\t%.*s\n", ++last_dir_entry, (int) (end - data), data); |
| 2834 | |
| 2835 | data += strnlen ((char *) data, end - data) + 1; |
| 2836 | } |
| 2837 | |
| 2838 | /* PR 17512: file: 002-132094-0.004. */ |
| 2839 | if (data >= end - 1) |
| 2840 | break; |
| 2841 | } |
| 2842 | |
| 2843 | /* Skip the NUL at the end of the table. */ |
| 2844 | data++; |
| 2845 | |
| 2846 | /* Display the contents of the File Name table. */ |
| 2847 | if (*data == 0) |
| 2848 | printf (_("\n The File Name Table is empty.\n")); |
| 2849 | else |
| 2850 | { |
| 2851 | printf (_("\n The File Name Table (offset 0x%lx):\n"), |
| 2852 | (long)(data - start)); |
| 2853 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); |
| 2854 | |
| 2855 | while (data < end && *data != 0) |
| 2856 | { |
| 2857 | unsigned char *name; |
| 2858 | unsigned int bytes_read; |
| 2859 | |
| 2860 | printf (" %d\t", ++state_machine_regs.last_file_entry); |
| 2861 | name = data; |
| 2862 | data += strnlen ((char *) data, end - data) + 1; |
| 2863 | |
| 2864 | printf ("%s\t", |
| 2865 | dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| 2866 | data += bytes_read; |
| 2867 | printf ("%s\t", |
| 2868 | dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| 2869 | data += bytes_read; |
| 2870 | printf ("%s\t", |
| 2871 | dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| 2872 | data += bytes_read; |
| 2873 | printf ("%.*s\n", (int)(end - name), name); |
| 2874 | |
| 2875 | if (data == end) |
| 2876 | { |
| 2877 | warn (_("Corrupt file name table entry\n")); |
| 2878 | break; |
| 2879 | } |
| 2880 | } |
| 2881 | } |
| 2882 | |
| 2883 | /* Skip the NUL at the end of the table. */ |
| 2884 | data++; |
| 2885 | putchar ('\n'); |
| 2886 | saved_linfo = linfo; |
| 2887 | } |
| 2888 | |
| 2889 | /* Now display the statements. */ |
| 2890 | if (data >= end_of_sequence) |
| 2891 | printf (_(" No Line Number Statements.\n")); |
| 2892 | else |
| 2893 | { |
| 2894 | printf (_(" Line Number Statements:\n")); |
| 2895 | |
| 2896 | while (data < end_of_sequence) |
| 2897 | { |
| 2898 | unsigned char op_code; |
| 2899 | dwarf_signed_vma adv; |
| 2900 | dwarf_vma uladv; |
| 2901 | unsigned int bytes_read; |
| 2902 | |
| 2903 | printf (" [0x%08lx]", (long)(data - start)); |
| 2904 | |
| 2905 | op_code = *data++; |
| 2906 | |
| 2907 | if (op_code >= linfo.li_opcode_base) |
| 2908 | { |
| 2909 | op_code -= linfo.li_opcode_base; |
| 2910 | uladv = (op_code / linfo.li_line_range); |
| 2911 | if (linfo.li_max_ops_per_insn == 1) |
| 2912 | { |
| 2913 | uladv *= linfo.li_min_insn_length; |
| 2914 | state_machine_regs.address += uladv; |
| 2915 | printf (_(" Special opcode %d: " |
| 2916 | "advance Address by %s to 0x%s"), |
| 2917 | op_code, dwarf_vmatoa ("u", uladv), |
| 2918 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 2919 | } |
| 2920 | else |
| 2921 | { |
| 2922 | state_machine_regs.address |
| 2923 | += ((state_machine_regs.op_index + uladv) |
| 2924 | / linfo.li_max_ops_per_insn) |
| 2925 | * linfo.li_min_insn_length; |
| 2926 | state_machine_regs.op_index |
| 2927 | = (state_machine_regs.op_index + uladv) |
| 2928 | % linfo.li_max_ops_per_insn; |
| 2929 | printf (_(" Special opcode %d: " |
| 2930 | "advance Address by %s to 0x%s[%d]"), |
| 2931 | op_code, dwarf_vmatoa ("u", uladv), |
| 2932 | dwarf_vmatoa ("x", state_machine_regs.address), |
| 2933 | state_machine_regs.op_index); |
| 2934 | } |
| 2935 | adv = (op_code % linfo.li_line_range) + linfo.li_line_base; |
| 2936 | state_machine_regs.line += adv; |
| 2937 | printf (_(" and Line by %s to %d\n"), |
| 2938 | dwarf_vmatoa ("d", adv), state_machine_regs.line); |
| 2939 | } |
| 2940 | else switch (op_code) |
| 2941 | { |
| 2942 | case DW_LNS_extended_op: |
| 2943 | data += process_extended_line_op (data, linfo.li_default_is_stmt, end); |
| 2944 | break; |
| 2945 | |
| 2946 | case DW_LNS_copy: |
| 2947 | printf (_(" Copy\n")); |
| 2948 | break; |
| 2949 | |
| 2950 | case DW_LNS_advance_pc: |
| 2951 | uladv = read_uleb128 (data, & bytes_read, end); |
| 2952 | data += bytes_read; |
| 2953 | if (linfo.li_max_ops_per_insn == 1) |
| 2954 | { |
| 2955 | uladv *= linfo.li_min_insn_length; |
| 2956 | state_machine_regs.address += uladv; |
| 2957 | printf (_(" Advance PC by %s to 0x%s\n"), |
| 2958 | dwarf_vmatoa ("u", uladv), |
| 2959 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 2960 | } |
| 2961 | else |
| 2962 | { |
| 2963 | state_machine_regs.address |
| 2964 | += ((state_machine_regs.op_index + uladv) |
| 2965 | / linfo.li_max_ops_per_insn) |
| 2966 | * linfo.li_min_insn_length; |
| 2967 | state_machine_regs.op_index |
| 2968 | = (state_machine_regs.op_index + uladv) |
| 2969 | % linfo.li_max_ops_per_insn; |
| 2970 | printf (_(" Advance PC by %s to 0x%s[%d]\n"), |
| 2971 | dwarf_vmatoa ("u", uladv), |
| 2972 | dwarf_vmatoa ("x", state_machine_regs.address), |
| 2973 | state_machine_regs.op_index); |
| 2974 | } |
| 2975 | break; |
| 2976 | |
| 2977 | case DW_LNS_advance_line: |
| 2978 | adv = read_sleb128 (data, & bytes_read, end); |
| 2979 | data += bytes_read; |
| 2980 | state_machine_regs.line += adv; |
| 2981 | printf (_(" Advance Line by %s to %d\n"), |
| 2982 | dwarf_vmatoa ("d", adv), |
| 2983 | state_machine_regs.line); |
| 2984 | break; |
| 2985 | |
| 2986 | case DW_LNS_set_file: |
| 2987 | adv = read_uleb128 (data, & bytes_read, end); |
| 2988 | data += bytes_read; |
| 2989 | printf (_(" Set File Name to entry %s in the File Name Table\n"), |
| 2990 | dwarf_vmatoa ("d", adv)); |
| 2991 | state_machine_regs.file = adv; |
| 2992 | break; |
| 2993 | |
| 2994 | case DW_LNS_set_column: |
| 2995 | uladv = read_uleb128 (data, & bytes_read, end); |
| 2996 | data += bytes_read; |
| 2997 | printf (_(" Set column to %s\n"), |
| 2998 | dwarf_vmatoa ("u", uladv)); |
| 2999 | state_machine_regs.column = uladv; |
| 3000 | break; |
| 3001 | |
| 3002 | case DW_LNS_negate_stmt: |
| 3003 | adv = state_machine_regs.is_stmt; |
| 3004 | adv = ! adv; |
| 3005 | printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv)); |
| 3006 | state_machine_regs.is_stmt = adv; |
| 3007 | break; |
| 3008 | |
| 3009 | case DW_LNS_set_basic_block: |
| 3010 | printf (_(" Set basic block\n")); |
| 3011 | state_machine_regs.basic_block = 1; |
| 3012 | break; |
| 3013 | |
| 3014 | case DW_LNS_const_add_pc: |
| 3015 | uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); |
| 3016 | if (linfo.li_max_ops_per_insn) |
| 3017 | { |
| 3018 | uladv *= linfo.li_min_insn_length; |
| 3019 | state_machine_regs.address += uladv; |
| 3020 | printf (_(" Advance PC by constant %s to 0x%s\n"), |
| 3021 | dwarf_vmatoa ("u", uladv), |
| 3022 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 3023 | } |
| 3024 | else |
| 3025 | { |
| 3026 | state_machine_regs.address |
| 3027 | += ((state_machine_regs.op_index + uladv) |
| 3028 | / linfo.li_max_ops_per_insn) |
| 3029 | * linfo.li_min_insn_length; |
| 3030 | state_machine_regs.op_index |
| 3031 | = (state_machine_regs.op_index + uladv) |
| 3032 | % linfo.li_max_ops_per_insn; |
| 3033 | printf (_(" Advance PC by constant %s to 0x%s[%d]\n"), |
| 3034 | dwarf_vmatoa ("u", uladv), |
| 3035 | dwarf_vmatoa ("x", state_machine_regs.address), |
| 3036 | state_machine_regs.op_index); |
| 3037 | } |
| 3038 | break; |
| 3039 | |
| 3040 | case DW_LNS_fixed_advance_pc: |
| 3041 | SAFE_BYTE_GET_AND_INC (uladv, data, 2, end); |
| 3042 | state_machine_regs.address += uladv; |
| 3043 | state_machine_regs.op_index = 0; |
| 3044 | printf (_(" Advance PC by fixed size amount %s to 0x%s\n"), |
| 3045 | dwarf_vmatoa ("u", uladv), |
| 3046 | dwarf_vmatoa ("x", state_machine_regs.address)); |
| 3047 | break; |
| 3048 | |
| 3049 | case DW_LNS_set_prologue_end: |
| 3050 | printf (_(" Set prologue_end to true\n")); |
| 3051 | break; |
| 3052 | |
| 3053 | case DW_LNS_set_epilogue_begin: |
| 3054 | printf (_(" Set epilogue_begin to true\n")); |
| 3055 | break; |
| 3056 | |
| 3057 | case DW_LNS_set_isa: |
| 3058 | uladv = read_uleb128 (data, & bytes_read, end); |
| 3059 | data += bytes_read; |
| 3060 | printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv)); |
| 3061 | break; |
| 3062 | |
| 3063 | default: |
| 3064 | printf (_(" Unknown opcode %d with operands: "), op_code); |
| 3065 | |
| 3066 | if (standard_opcodes != NULL) |
| 3067 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) |
| 3068 | { |
| 3069 | printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data, |
| 3070 | &bytes_read, end)), |
| 3071 | i == 1 ? "" : ", "); |
| 3072 | data += bytes_read; |
| 3073 | } |
| 3074 | putchar ('\n'); |
| 3075 | break; |
| 3076 | } |
| 3077 | } |
| 3078 | putchar ('\n'); |
| 3079 | } |
| 3080 | } |
| 3081 | |
| 3082 | return 1; |
| 3083 | } |
| 3084 | |
| 3085 | typedef struct |
| 3086 | { |
| 3087 | unsigned char *name; |
| 3088 | unsigned int directory_index; |
| 3089 | unsigned int modification_date; |
| 3090 | unsigned int length; |
| 3091 | } File_Entry; |
| 3092 | |
| 3093 | /* Output a decoded representation of the .debug_line section. */ |
| 3094 | |
| 3095 | static int |
| 3096 | display_debug_lines_decoded (struct dwarf_section *section, |
| 3097 | unsigned char *data, |
| 3098 | unsigned char *end) |
| 3099 | { |
| 3100 | static DWARF2_Internal_LineInfo saved_linfo; |
| 3101 | |
| 3102 | printf (_("Decoded dump of debug contents of section %s:\n\n"), |
| 3103 | section->name); |
| 3104 | |
| 3105 | while (data < end) |
| 3106 | { |
| 3107 | /* This loop amounts to one iteration per compilation unit. */ |
| 3108 | DWARF2_Internal_LineInfo linfo; |
| 3109 | unsigned char *standard_opcodes; |
| 3110 | unsigned char *end_of_sequence; |
| 3111 | int i; |
| 3112 | File_Entry *file_table = NULL; |
| 3113 | unsigned int n_files = 0; |
| 3114 | unsigned char **directory_table = NULL; |
| 3115 | unsigned int n_directories = 0; |
| 3116 | |
| 3117 | if (const_strneq (section->name, ".debug_line.") |
| 3118 | /* Note: the following does not apply to .debug_line.dwo sections. |
| 3119 | These are full debug_line sections. */ |
| 3120 | && strcmp (section->name, ".debug_line.dwo") != 0) |
| 3121 | { |
| 3122 | /* See comment in display_debug_lines_raw(). */ |
| 3123 | end_of_sequence = end; |
| 3124 | standard_opcodes = NULL; |
| 3125 | linfo = saved_linfo; |
| 3126 | reset_state_machine (linfo.li_default_is_stmt); |
| 3127 | } |
| 3128 | else |
| 3129 | { |
| 3130 | unsigned char *hdrptr; |
| 3131 | |
| 3132 | if ((hdrptr = read_debug_line_header (section, data, end, & linfo, |
| 3133 | & end_of_sequence)) == NULL) |
| 3134 | return 0; |
| 3135 | |
| 3136 | reset_state_machine (linfo.li_default_is_stmt); |
| 3137 | |
| 3138 | /* Save a pointer to the contents of the Opcodes table. */ |
| 3139 | standard_opcodes = hdrptr; |
| 3140 | |
| 3141 | /* Traverse the Directory table just to count entries. */ |
| 3142 | data = standard_opcodes + linfo.li_opcode_base - 1; |
| 3143 | if (*data != 0) |
| 3144 | { |
| 3145 | unsigned char *ptr_directory_table = data; |
| 3146 | |
| 3147 | while (*data != 0) |
| 3148 | { |
| 3149 | data += strnlen ((char *) data, end - data) + 1; |
| 3150 | n_directories++; |
| 3151 | } |
| 3152 | |
| 3153 | /* Go through the directory table again to save the directories. */ |
| 3154 | directory_table = (unsigned char **) |
| 3155 | xmalloc (n_directories * sizeof (unsigned char *)); |
| 3156 | |
| 3157 | i = 0; |
| 3158 | while (*ptr_directory_table != 0) |
| 3159 | { |
| 3160 | directory_table[i] = ptr_directory_table; |
| 3161 | ptr_directory_table += strnlen ((char *) ptr_directory_table, |
| 3162 | ptr_directory_table - end) + 1; |
| 3163 | i++; |
| 3164 | } |
| 3165 | } |
| 3166 | /* Skip the NUL at the end of the table. */ |
| 3167 | data++; |
| 3168 | |
| 3169 | /* Traverse the File Name table just to count the entries. */ |
| 3170 | if (*data != 0) |
| 3171 | { |
| 3172 | unsigned char *ptr_file_name_table = data; |
| 3173 | |
| 3174 | while (*data != 0) |
| 3175 | { |
| 3176 | unsigned int bytes_read; |
| 3177 | |
| 3178 | /* Skip Name, directory index, last modification time and length |
| 3179 | of file. */ |
| 3180 | data += strnlen ((char *) data, end - data) + 1; |
| 3181 | read_uleb128 (data, & bytes_read, end); |
| 3182 | data += bytes_read; |
| 3183 | read_uleb128 (data, & bytes_read, end); |
| 3184 | data += bytes_read; |
| 3185 | read_uleb128 (data, & bytes_read, end); |
| 3186 | data += bytes_read; |
| 3187 | |
| 3188 | n_files++; |
| 3189 | } |
| 3190 | |
| 3191 | /* Go through the file table again to save the strings. */ |
| 3192 | file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry)); |
| 3193 | |
| 3194 | i = 0; |
| 3195 | while (*ptr_file_name_table != 0) |
| 3196 | { |
| 3197 | unsigned int bytes_read; |
| 3198 | |
| 3199 | file_table[i].name = ptr_file_name_table; |
| 3200 | ptr_file_name_table += strnlen ((char *) ptr_file_name_table, |
| 3201 | end - ptr_file_name_table) + 1; |
| 3202 | |
| 3203 | /* We are not interested in directory, time or size. */ |
| 3204 | file_table[i].directory_index = read_uleb128 (ptr_file_name_table, |
| 3205 | & bytes_read, end); |
| 3206 | ptr_file_name_table += bytes_read; |
| 3207 | file_table[i].modification_date = read_uleb128 (ptr_file_name_table, |
| 3208 | & bytes_read, end); |
| 3209 | ptr_file_name_table += bytes_read; |
| 3210 | file_table[i].length = read_uleb128 (ptr_file_name_table, & bytes_read, end); |
| 3211 | ptr_file_name_table += bytes_read; |
| 3212 | i++; |
| 3213 | } |
| 3214 | i = 0; |
| 3215 | |
| 3216 | /* Print the Compilation Unit's name and a header. */ |
| 3217 | if (directory_table == NULL) |
| 3218 | { |
| 3219 | printf (_("CU: %s:\n"), file_table[0].name); |
| 3220 | printf (_("File name Line number Starting address\n")); |
| 3221 | } |
| 3222 | else |
| 3223 | { |
| 3224 | unsigned int ix = file_table[0].directory_index; |
| 3225 | const char *directory = ix ? (char *)directory_table[ix - 1] : "."; |
| 3226 | |
| 3227 | if (do_wide || strlen (directory) < 76) |
| 3228 | printf (_("CU: %s/%s:\n"), directory, file_table[0].name); |
| 3229 | else |
| 3230 | printf ("%s:\n", file_table[0].name); |
| 3231 | |
| 3232 | printf (_("File name Line number Starting address\n")); |
| 3233 | } |
| 3234 | } |
| 3235 | |
| 3236 | /* Skip the NUL at the end of the table. */ |
| 3237 | data++; |
| 3238 | |
| 3239 | saved_linfo = linfo; |
| 3240 | } |
| 3241 | |
| 3242 | /* This loop iterates through the Dwarf Line Number Program. */ |
| 3243 | while (data < end_of_sequence) |
| 3244 | { |
| 3245 | unsigned char op_code; |
| 3246 | int adv; |
| 3247 | unsigned long int uladv; |
| 3248 | unsigned int bytes_read; |
| 3249 | int is_special_opcode = 0; |
| 3250 | |
| 3251 | op_code = *data++; |
| 3252 | |
| 3253 | if (op_code >= linfo.li_opcode_base) |
| 3254 | { |
| 3255 | op_code -= linfo.li_opcode_base; |
| 3256 | uladv = (op_code / linfo.li_line_range); |
| 3257 | if (linfo.li_max_ops_per_insn == 1) |
| 3258 | { |
| 3259 | uladv *= linfo.li_min_insn_length; |
| 3260 | state_machine_regs.address += uladv; |
| 3261 | } |
| 3262 | else |
| 3263 | { |
| 3264 | state_machine_regs.address |
| 3265 | += ((state_machine_regs.op_index + uladv) |
| 3266 | / linfo.li_max_ops_per_insn) |
| 3267 | * linfo.li_min_insn_length; |
| 3268 | state_machine_regs.op_index |
| 3269 | = (state_machine_regs.op_index + uladv) |
| 3270 | % linfo.li_max_ops_per_insn; |
| 3271 | } |
| 3272 | |
| 3273 | adv = (op_code % linfo.li_line_range) + linfo.li_line_base; |
| 3274 | state_machine_regs.line += adv; |
| 3275 | is_special_opcode = 1; |
| 3276 | } |
| 3277 | else switch (op_code) |
| 3278 | { |
| 3279 | case DW_LNS_extended_op: |
| 3280 | { |
| 3281 | unsigned int ext_op_code_len; |
| 3282 | unsigned char ext_op_code; |
| 3283 | unsigned char *op_code_data = data; |
| 3284 | |
| 3285 | ext_op_code_len = read_uleb128 (op_code_data, &bytes_read, |
| 3286 | end_of_sequence); |
| 3287 | op_code_data += bytes_read; |
| 3288 | |
| 3289 | if (ext_op_code_len == 0) |
| 3290 | { |
| 3291 | warn (_("Badly formed extended line op encountered!\n")); |
| 3292 | break; |
| 3293 | } |
| 3294 | ext_op_code_len += bytes_read; |
| 3295 | ext_op_code = *op_code_data++; |
| 3296 | |
| 3297 | switch (ext_op_code) |
| 3298 | { |
| 3299 | case DW_LNE_end_sequence: |
| 3300 | reset_state_machine (linfo.li_default_is_stmt); |
| 3301 | break; |
| 3302 | case DW_LNE_set_address: |
| 3303 | SAFE_BYTE_GET_AND_INC (state_machine_regs.address, |
| 3304 | op_code_data, |
| 3305 | ext_op_code_len - bytes_read - 1, |
| 3306 | end); |
| 3307 | state_machine_regs.op_index = 0; |
| 3308 | break; |
| 3309 | case DW_LNE_define_file: |
| 3310 | { |
| 3311 | file_table = (File_Entry *) xrealloc |
| 3312 | (file_table, (n_files + 1) * sizeof (File_Entry)); |
| 3313 | |
| 3314 | ++state_machine_regs.last_file_entry; |
| 3315 | /* Source file name. */ |
| 3316 | file_table[n_files].name = op_code_data; |
| 3317 | op_code_data += strlen ((char *) op_code_data) + 1; |
| 3318 | /* Directory index. */ |
| 3319 | file_table[n_files].directory_index = |
| 3320 | read_uleb128 (op_code_data, & bytes_read, |
| 3321 | end_of_sequence); |
| 3322 | op_code_data += bytes_read; |
| 3323 | /* Last modification time. */ |
| 3324 | file_table[n_files].modification_date = |
| 3325 | read_uleb128 (op_code_data, & bytes_read, |
| 3326 | end_of_sequence); |
| 3327 | op_code_data += bytes_read; |
| 3328 | /* File length. */ |
| 3329 | file_table[n_files].length = |
| 3330 | read_uleb128 (op_code_data, & bytes_read, |
| 3331 | end_of_sequence); |
| 3332 | |
| 3333 | n_files++; |
| 3334 | break; |
| 3335 | } |
| 3336 | case DW_LNE_set_discriminator: |
| 3337 | case DW_LNE_HP_set_sequence: |
| 3338 | /* Simply ignored. */ |
| 3339 | break; |
| 3340 | |
| 3341 | default: |
| 3342 | printf (_("UNKNOWN (%u): length %d\n"), |
| 3343 | ext_op_code, ext_op_code_len - bytes_read); |
| 3344 | break; |
| 3345 | } |
| 3346 | data += ext_op_code_len; |
| 3347 | break; |
| 3348 | } |
| 3349 | case DW_LNS_copy: |
| 3350 | break; |
| 3351 | |
| 3352 | case DW_LNS_advance_pc: |
| 3353 | uladv = read_uleb128 (data, & bytes_read, end); |
| 3354 | data += bytes_read; |
| 3355 | if (linfo.li_max_ops_per_insn == 1) |
| 3356 | { |
| 3357 | uladv *= linfo.li_min_insn_length; |
| 3358 | state_machine_regs.address += uladv; |
| 3359 | } |
| 3360 | else |
| 3361 | { |
| 3362 | state_machine_regs.address |
| 3363 | += ((state_machine_regs.op_index + uladv) |
| 3364 | / linfo.li_max_ops_per_insn) |
| 3365 | * linfo.li_min_insn_length; |
| 3366 | state_machine_regs.op_index |
| 3367 | = (state_machine_regs.op_index + uladv) |
| 3368 | % linfo.li_max_ops_per_insn; |
| 3369 | } |
| 3370 | break; |
| 3371 | |
| 3372 | case DW_LNS_advance_line: |
| 3373 | adv = read_sleb128 (data, & bytes_read, end); |
| 3374 | data += bytes_read; |
| 3375 | state_machine_regs.line += adv; |
| 3376 | break; |
| 3377 | |
| 3378 | case DW_LNS_set_file: |
| 3379 | adv = read_uleb128 (data, & bytes_read, end); |
| 3380 | data += bytes_read; |
| 3381 | state_machine_regs.file = adv; |
| 3382 | |
| 3383 | if (file_table == NULL) |
| 3384 | printf (_("\n [Use file table entry %d]\n"), state_machine_regs.file - 1); |
| 3385 | else if (file_table[state_machine_regs.file - 1].directory_index == 0) |
| 3386 | /* If directory index is 0, that means current directory. */ |
| 3387 | printf ("\n./%s:[++]\n", |
| 3388 | file_table[state_machine_regs.file - 1].name); |
| 3389 | else if (directory_table == NULL) |
| 3390 | printf (_("\n [Use directory table entry %d]\n"), |
| 3391 | file_table[state_machine_regs.file - 1].directory_index - 1); |
| 3392 | else |
| 3393 | /* The directory index starts counting at 1. */ |
| 3394 | printf ("\n%s/%s:\n", |
| 3395 | directory_table[file_table[state_machine_regs.file - 1].directory_index - 1], |
| 3396 | file_table[state_machine_regs.file - 1].name); |
| 3397 | break; |
| 3398 | |
| 3399 | case DW_LNS_set_column: |
| 3400 | uladv = read_uleb128 (data, & bytes_read, end); |
| 3401 | data += bytes_read; |
| 3402 | state_machine_regs.column = uladv; |
| 3403 | break; |
| 3404 | |
| 3405 | case DW_LNS_negate_stmt: |
| 3406 | adv = state_machine_regs.is_stmt; |
| 3407 | adv = ! adv; |
| 3408 | state_machine_regs.is_stmt = adv; |
| 3409 | break; |
| 3410 | |
| 3411 | case DW_LNS_set_basic_block: |
| 3412 | state_machine_regs.basic_block = 1; |
| 3413 | break; |
| 3414 | |
| 3415 | case DW_LNS_const_add_pc: |
| 3416 | uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); |
| 3417 | if (linfo.li_max_ops_per_insn == 1) |
| 3418 | { |
| 3419 | uladv *= linfo.li_min_insn_length; |
| 3420 | state_machine_regs.address += uladv; |
| 3421 | } |
| 3422 | else |
| 3423 | { |
| 3424 | state_machine_regs.address |
| 3425 | += ((state_machine_regs.op_index + uladv) |
| 3426 | / linfo.li_max_ops_per_insn) |
| 3427 | * linfo.li_min_insn_length; |
| 3428 | state_machine_regs.op_index |
| 3429 | = (state_machine_regs.op_index + uladv) |
| 3430 | % linfo.li_max_ops_per_insn; |
| 3431 | } |
| 3432 | break; |
| 3433 | |
| 3434 | case DW_LNS_fixed_advance_pc: |
| 3435 | SAFE_BYTE_GET_AND_INC (uladv, data, 2, end); |
| 3436 | state_machine_regs.address += uladv; |
| 3437 | state_machine_regs.op_index = 0; |
| 3438 | break; |
| 3439 | |
| 3440 | case DW_LNS_set_prologue_end: |
| 3441 | break; |
| 3442 | |
| 3443 | case DW_LNS_set_epilogue_begin: |
| 3444 | break; |
| 3445 | |
| 3446 | case DW_LNS_set_isa: |
| 3447 | uladv = read_uleb128 (data, & bytes_read, end); |
| 3448 | data += bytes_read; |
| 3449 | printf (_(" Set ISA to %lu\n"), uladv); |
| 3450 | break; |
| 3451 | |
| 3452 | default: |
| 3453 | printf (_(" Unknown opcode %d with operands: "), op_code); |
| 3454 | |
| 3455 | if (standard_opcodes != NULL) |
| 3456 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) |
| 3457 | { |
| 3458 | printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data, |
| 3459 | &bytes_read, end)), |
| 3460 | i == 1 ? "" : ", "); |
| 3461 | data += bytes_read; |
| 3462 | } |
| 3463 | putchar ('\n'); |
| 3464 | break; |
| 3465 | } |
| 3466 | |
| 3467 | /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row |
| 3468 | to the DWARF address/line matrix. */ |
| 3469 | if ((is_special_opcode) || (op_code == DW_LNE_end_sequence) |
| 3470 | || (op_code == DW_LNS_copy)) |
| 3471 | { |
| 3472 | const unsigned int MAX_FILENAME_LENGTH = 35; |
| 3473 | char *fileName; |
| 3474 | char *newFileName = NULL; |
| 3475 | size_t fileNameLength; |
| 3476 | |
| 3477 | if (file_table) |
| 3478 | fileName = (char *) file_table[state_machine_regs.file - 1].name; |
| 3479 | else |
| 3480 | fileName = "<unknown>"; |
| 3481 | |
| 3482 | fileNameLength = strlen (fileName); |
| 3483 | |
| 3484 | if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide)) |
| 3485 | { |
| 3486 | newFileName = (char *) xmalloc (MAX_FILENAME_LENGTH + 1); |
| 3487 | /* Truncate file name */ |
| 3488 | strncpy (newFileName, |
| 3489 | fileName + fileNameLength - MAX_FILENAME_LENGTH, |
| 3490 | MAX_FILENAME_LENGTH + 1); |
| 3491 | } |
| 3492 | else |
| 3493 | { |
| 3494 | newFileName = (char *) xmalloc (fileNameLength + 1); |
| 3495 | strncpy (newFileName, fileName, fileNameLength + 1); |
| 3496 | } |
| 3497 | |
| 3498 | if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH)) |
| 3499 | { |
| 3500 | if (linfo.li_max_ops_per_insn == 1) |
| 3501 | printf ("%-35s %11d %#18" DWARF_VMA_FMT "x\n", |
| 3502 | newFileName, state_machine_regs.line, |
| 3503 | state_machine_regs.address); |
| 3504 | else |
| 3505 | printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]\n", |
| 3506 | newFileName, state_machine_regs.line, |
| 3507 | state_machine_regs.address, |
| 3508 | state_machine_regs.op_index); |
| 3509 | } |
| 3510 | else |
| 3511 | { |
| 3512 | if (linfo.li_max_ops_per_insn == 1) |
| 3513 | printf ("%s %11d %#18" DWARF_VMA_FMT "x\n", |
| 3514 | newFileName, state_machine_regs.line, |
| 3515 | state_machine_regs.address); |
| 3516 | else |
| 3517 | printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]\n", |
| 3518 | newFileName, state_machine_regs.line, |
| 3519 | state_machine_regs.address, |
| 3520 | state_machine_regs.op_index); |
| 3521 | } |
| 3522 | |
| 3523 | if (op_code == DW_LNE_end_sequence) |
| 3524 | printf ("\n"); |
| 3525 | |
| 3526 | free (newFileName); |
| 3527 | } |
| 3528 | } |
| 3529 | |
| 3530 | if (file_table) |
| 3531 | { |
| 3532 | free (file_table); |
| 3533 | file_table = NULL; |
| 3534 | n_files = 0; |
| 3535 | } |
| 3536 | |
| 3537 | if (directory_table) |
| 3538 | { |
| 3539 | free (directory_table); |
| 3540 | directory_table = NULL; |
| 3541 | n_directories = 0; |
| 3542 | } |
| 3543 | |
| 3544 | putchar ('\n'); |
| 3545 | } |
| 3546 | |
| 3547 | return 1; |
| 3548 | } |
| 3549 | |
| 3550 | static int |
| 3551 | display_debug_lines (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) |
| 3552 | { |
| 3553 | unsigned char *data = section->start; |
| 3554 | unsigned char *end = data + section->size; |
| 3555 | int retValRaw = 1; |
| 3556 | int retValDecoded = 1; |
| 3557 | |
| 3558 | if (do_debug_lines == 0) |
| 3559 | do_debug_lines |= FLAG_DEBUG_LINES_RAW; |
| 3560 | |
| 3561 | if (do_debug_lines & FLAG_DEBUG_LINES_RAW) |
| 3562 | retValRaw = display_debug_lines_raw (section, data, end); |
| 3563 | |
| 3564 | if (do_debug_lines & FLAG_DEBUG_LINES_DECODED) |
| 3565 | retValDecoded = display_debug_lines_decoded (section, data, end); |
| 3566 | |
| 3567 | if (!retValRaw || !retValDecoded) |
| 3568 | return 0; |
| 3569 | |
| 3570 | return 1; |
| 3571 | } |
| 3572 | |
| 3573 | static debug_info * |
| 3574 | find_debug_info_for_offset (unsigned long offset) |
| 3575 | { |
| 3576 | unsigned int i; |
| 3577 | |
| 3578 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
| 3579 | return NULL; |
| 3580 | |
| 3581 | for (i = 0; i < num_debug_info_entries; i++) |
| 3582 | if (debug_information[i].cu_offset == offset) |
| 3583 | return debug_information + i; |
| 3584 | |
| 3585 | return NULL; |
| 3586 | } |
| 3587 | |
| 3588 | static const char * |
| 3589 | get_gdb_index_symbol_kind_name (gdb_index_symbol_kind kind) |
| 3590 | { |
| 3591 | /* See gdb/gdb-index.h. */ |
| 3592 | static const char * const kinds[] = |
| 3593 | { |
| 3594 | N_ ("no info"), |
| 3595 | N_ ("type"), |
| 3596 | N_ ("variable"), |
| 3597 | N_ ("function"), |
| 3598 | N_ ("other"), |
| 3599 | N_ ("unused5"), |
| 3600 | N_ ("unused6"), |
| 3601 | N_ ("unused7") |
| 3602 | }; |
| 3603 | |
| 3604 | return _ (kinds[kind]); |
| 3605 | } |
| 3606 | |
| 3607 | static int |
| 3608 | display_debug_pubnames_worker (struct dwarf_section *section, |
| 3609 | void *file ATTRIBUTE_UNUSED, |
| 3610 | int is_gnu) |
| 3611 | { |
| 3612 | DWARF2_Internal_PubNames names; |
| 3613 | unsigned char *start = section->start; |
| 3614 | unsigned char *end = start + section->size; |
| 3615 | |
| 3616 | /* It does not matter if this load fails, |
| 3617 | we test for that later on. */ |
| 3618 | load_debug_info (file); |
| 3619 | |
| 3620 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3621 | |
| 3622 | while (start < end) |
| 3623 | { |
| 3624 | unsigned char *data; |
| 3625 | unsigned long offset; |
| 3626 | unsigned int offset_size, initial_length_size; |
| 3627 | |
| 3628 | data = start; |
| 3629 | |
| 3630 | SAFE_BYTE_GET_AND_INC (names.pn_length, data, 4, end); |
| 3631 | if (names.pn_length == 0xffffffff) |
| 3632 | { |
| 3633 | SAFE_BYTE_GET_AND_INC (names.pn_length, data, 8, end); |
| 3634 | offset_size = 8; |
| 3635 | initial_length_size = 12; |
| 3636 | } |
| 3637 | else |
| 3638 | { |
| 3639 | offset_size = 4; |
| 3640 | initial_length_size = 4; |
| 3641 | } |
| 3642 | |
| 3643 | SAFE_BYTE_GET_AND_INC (names.pn_version, data, 2, end); |
| 3644 | SAFE_BYTE_GET_AND_INC (names.pn_offset, data, offset_size, end); |
| 3645 | |
| 3646 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
| 3647 | && num_debug_info_entries > 0 |
| 3648 | && find_debug_info_for_offset (names.pn_offset) == NULL) |
| 3649 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), |
| 3650 | (unsigned long) names.pn_offset, section->name); |
| 3651 | |
| 3652 | SAFE_BYTE_GET_AND_INC (names.pn_size, data, offset_size, end); |
| 3653 | |
| 3654 | start += names.pn_length + initial_length_size; |
| 3655 | |
| 3656 | if (names.pn_version != 2 && names.pn_version != 3) |
| 3657 | { |
| 3658 | static int warned = 0; |
| 3659 | |
| 3660 | if (! warned) |
| 3661 | { |
| 3662 | warn (_("Only DWARF 2 and 3 pubnames are currently supported\n")); |
| 3663 | warned = 1; |
| 3664 | } |
| 3665 | |
| 3666 | continue; |
| 3667 | } |
| 3668 | |
| 3669 | printf (_(" Length: %ld\n"), |
| 3670 | (long) names.pn_length); |
| 3671 | printf (_(" Version: %d\n"), |
| 3672 | names.pn_version); |
| 3673 | printf (_(" Offset into .debug_info section: 0x%lx\n"), |
| 3674 | (unsigned long) names.pn_offset); |
| 3675 | printf (_(" Size of area in .debug_info section: %ld\n"), |
| 3676 | (long) names.pn_size); |
| 3677 | |
| 3678 | if (is_gnu) |
| 3679 | printf (_("\n Offset Kind Name\n")); |
| 3680 | else |
| 3681 | printf (_("\n Offset\tName\n")); |
| 3682 | |
| 3683 | do |
| 3684 | { |
| 3685 | bfd_size_type maxprint; |
| 3686 | |
| 3687 | SAFE_BYTE_GET (offset, data, offset_size, end); |
| 3688 | |
| 3689 | if (offset != 0) |
| 3690 | { |
| 3691 | data += offset_size; |
| 3692 | if (data >= end) |
| 3693 | break; |
| 3694 | maxprint = (end - data) - 1; |
| 3695 | |
| 3696 | if (is_gnu) |
| 3697 | { |
| 3698 | unsigned int kind_data; |
| 3699 | gdb_index_symbol_kind kind; |
| 3700 | const char *kind_name; |
| 3701 | int is_static; |
| 3702 | |
| 3703 | SAFE_BYTE_GET (kind_data, data, 1, end); |
| 3704 | data++; |
| 3705 | maxprint --; |
| 3706 | /* GCC computes the kind as the upper byte in the CU index |
| 3707 | word, and then right shifts it by the CU index size. |
| 3708 | Left shift KIND to where the gdb-index.h accessor macros |
| 3709 | can use it. */ |
| 3710 | kind_data <<= GDB_INDEX_CU_BITSIZE; |
| 3711 | kind = GDB_INDEX_SYMBOL_KIND_VALUE (kind_data); |
| 3712 | kind_name = get_gdb_index_symbol_kind_name (kind); |
| 3713 | is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (kind_data); |
| 3714 | printf (" %-6lx %s,%-10s %.*s\n", |
| 3715 | offset, is_static ? _("s") : _("g"), |
| 3716 | kind_name, (int) maxprint, data); |
| 3717 | } |
| 3718 | else |
| 3719 | printf (" %-6lx\t%.*s\n", offset, (int) maxprint, data); |
| 3720 | |
| 3721 | data += strnlen ((char *) data, maxprint) + 1; |
| 3722 | if (data >= end) |
| 3723 | break; |
| 3724 | } |
| 3725 | } |
| 3726 | while (offset != 0); |
| 3727 | } |
| 3728 | |
| 3729 | printf ("\n"); |
| 3730 | return 1; |
| 3731 | } |
| 3732 | |
| 3733 | static int |
| 3734 | display_debug_pubnames (struct dwarf_section *section, void *file) |
| 3735 | { |
| 3736 | return display_debug_pubnames_worker (section, file, 0); |
| 3737 | } |
| 3738 | |
| 3739 | static int |
| 3740 | display_debug_gnu_pubnames (struct dwarf_section *section, void *file) |
| 3741 | { |
| 3742 | return display_debug_pubnames_worker (section, file, 1); |
| 3743 | } |
| 3744 | |
| 3745 | static int |
| 3746 | display_debug_macinfo (struct dwarf_section *section, |
| 3747 | void *file ATTRIBUTE_UNUSED) |
| 3748 | { |
| 3749 | unsigned char *start = section->start; |
| 3750 | unsigned char *end = start + section->size; |
| 3751 | unsigned char *curr = start; |
| 3752 | unsigned int bytes_read; |
| 3753 | enum dwarf_macinfo_record_type op; |
| 3754 | |
| 3755 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3756 | |
| 3757 | while (curr < end) |
| 3758 | { |
| 3759 | unsigned int lineno; |
| 3760 | const unsigned char *string; |
| 3761 | |
| 3762 | op = (enum dwarf_macinfo_record_type) *curr; |
| 3763 | curr++; |
| 3764 | |
| 3765 | switch (op) |
| 3766 | { |
| 3767 | case DW_MACINFO_start_file: |
| 3768 | { |
| 3769 | unsigned int filenum; |
| 3770 | |
| 3771 | lineno = read_uleb128 (curr, & bytes_read, end); |
| 3772 | curr += bytes_read; |
| 3773 | filenum = read_uleb128 (curr, & bytes_read, end); |
| 3774 | curr += bytes_read; |
| 3775 | |
| 3776 | printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"), |
| 3777 | lineno, filenum); |
| 3778 | } |
| 3779 | break; |
| 3780 | |
| 3781 | case DW_MACINFO_end_file: |
| 3782 | printf (_(" DW_MACINFO_end_file\n")); |
| 3783 | break; |
| 3784 | |
| 3785 | case DW_MACINFO_define: |
| 3786 | lineno = read_uleb128 (curr, & bytes_read, end); |
| 3787 | curr += bytes_read; |
| 3788 | string = curr; |
| 3789 | curr += strnlen ((char *) string, end - string) + 1; |
| 3790 | printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"), |
| 3791 | lineno, string); |
| 3792 | break; |
| 3793 | |
| 3794 | case DW_MACINFO_undef: |
| 3795 | lineno = read_uleb128 (curr, & bytes_read, end); |
| 3796 | curr += bytes_read; |
| 3797 | string = curr; |
| 3798 | curr += strnlen ((char *) string, end - string) + 1; |
| 3799 | printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), |
| 3800 | lineno, string); |
| 3801 | break; |
| 3802 | |
| 3803 | case DW_MACINFO_vendor_ext: |
| 3804 | { |
| 3805 | unsigned int constant; |
| 3806 | |
| 3807 | constant = read_uleb128 (curr, & bytes_read, end); |
| 3808 | curr += bytes_read; |
| 3809 | string = curr; |
| 3810 | curr += strnlen ((char *) string, end - string) + 1; |
| 3811 | printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), |
| 3812 | constant, string); |
| 3813 | } |
| 3814 | break; |
| 3815 | } |
| 3816 | } |
| 3817 | |
| 3818 | return 1; |
| 3819 | } |
| 3820 | |
| 3821 | /* Given LINE_OFFSET into the .debug_line section, attempt to return |
| 3822 | filename and dirname corresponding to file name table entry with index |
| 3823 | FILEIDX. Return NULL on failure. */ |
| 3824 | |
| 3825 | static unsigned char * |
| 3826 | get_line_filename_and_dirname (dwarf_vma line_offset, |
| 3827 | dwarf_vma fileidx, |
| 3828 | unsigned char **dir_name) |
| 3829 | { |
| 3830 | struct dwarf_section *section = &debug_displays [line].section; |
| 3831 | unsigned char *hdrptr, *dirtable, *file_name; |
| 3832 | unsigned int offset_size, initial_length_size; |
| 3833 | unsigned int version, opcode_base, bytes_read; |
| 3834 | dwarf_vma length, diridx; |
| 3835 | const unsigned char * end; |
| 3836 | |
| 3837 | *dir_name = NULL; |
| 3838 | if (section->start == NULL |
| 3839 | || line_offset >= section->size |
| 3840 | || fileidx == 0) |
| 3841 | return NULL; |
| 3842 | |
| 3843 | hdrptr = section->start + line_offset; |
| 3844 | end = section->start + section->size; |
| 3845 | |
| 3846 | SAFE_BYTE_GET_AND_INC (length, hdrptr, 4, end); |
| 3847 | if (length == 0xffffffff) |
| 3848 | { |
| 3849 | /* This section is 64-bit DWARF 3. */ |
| 3850 | SAFE_BYTE_GET_AND_INC (length, hdrptr, 8, end); |
| 3851 | offset_size = 8; |
| 3852 | initial_length_size = 12; |
| 3853 | } |
| 3854 | else |
| 3855 | { |
| 3856 | offset_size = 4; |
| 3857 | initial_length_size = 4; |
| 3858 | } |
| 3859 | if (length + initial_length_size > section->size) |
| 3860 | return NULL; |
| 3861 | |
| 3862 | SAFE_BYTE_GET_AND_INC (version, hdrptr, 2, end); |
| 3863 | if (version != 2 && version != 3 && version != 4) |
| 3864 | return NULL; |
| 3865 | hdrptr += offset_size + 1;/* Skip prologue_length and min_insn_length. */ |
| 3866 | if (version >= 4) |
| 3867 | hdrptr++; /* Skip max_ops_per_insn. */ |
| 3868 | hdrptr += 3; /* Skip default_is_stmt, line_base, line_range. */ |
| 3869 | |
| 3870 | SAFE_BYTE_GET_AND_INC (opcode_base, hdrptr, 1, end); |
| 3871 | if (opcode_base == 0) |
| 3872 | return NULL; |
| 3873 | |
| 3874 | hdrptr += opcode_base - 1; |
| 3875 | dirtable = hdrptr; |
| 3876 | /* Skip over dirname table. */ |
| 3877 | while (*hdrptr != '\0') |
| 3878 | hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; |
| 3879 | hdrptr++; /* Skip the NUL at the end of the table. */ |
| 3880 | /* Now skip over preceding filename table entries. */ |
| 3881 | for (; *hdrptr != '\0' && fileidx > 1; fileidx--) |
| 3882 | { |
| 3883 | hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; |
| 3884 | read_uleb128 (hdrptr, &bytes_read, end); |
| 3885 | hdrptr += bytes_read; |
| 3886 | read_uleb128 (hdrptr, &bytes_read, end); |
| 3887 | hdrptr += bytes_read; |
| 3888 | read_uleb128 (hdrptr, &bytes_read, end); |
| 3889 | hdrptr += bytes_read; |
| 3890 | } |
| 3891 | if (hdrptr == end || *hdrptr == '\0') |
| 3892 | return NULL; |
| 3893 | file_name = hdrptr; |
| 3894 | hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; |
| 3895 | diridx = read_uleb128 (hdrptr, &bytes_read, end); |
| 3896 | if (diridx == 0) |
| 3897 | return file_name; |
| 3898 | for (; *dirtable != '\0' && diridx > 1; diridx--) |
| 3899 | dirtable += strnlen ((char *) dirtable, end - dirtable) + 1; |
| 3900 | if (*dirtable == '\0') |
| 3901 | return NULL; |
| 3902 | *dir_name = dirtable; |
| 3903 | return file_name; |
| 3904 | } |
| 3905 | |
| 3906 | static int |
| 3907 | display_debug_macro (struct dwarf_section *section, |
| 3908 | void *file) |
| 3909 | { |
| 3910 | unsigned char *start = section->start; |
| 3911 | unsigned char *end = start + section->size; |
| 3912 | unsigned char *curr = start; |
| 3913 | unsigned char *extended_op_buf[256]; |
| 3914 | unsigned int bytes_read; |
| 3915 | |
| 3916 | load_debug_section (str, file); |
| 3917 | load_debug_section (line, file); |
| 3918 | |
| 3919 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 3920 | |
| 3921 | while (curr < end) |
| 3922 | { |
| 3923 | unsigned int lineno, version, flags; |
| 3924 | unsigned int offset_size = 4; |
| 3925 | const unsigned char *string; |
| 3926 | dwarf_vma line_offset = 0, sec_offset = curr - start, offset; |
| 3927 | unsigned char **extended_ops = NULL; |
| 3928 | |
| 3929 | SAFE_BYTE_GET_AND_INC (version, curr, 2, end); |
| 3930 | if (version != 4) |
| 3931 | { |
| 3932 | error (_("Only GNU extension to DWARF 4 of %s is currently supported.\n"), |
| 3933 | section->name); |
| 3934 | return 0; |
| 3935 | } |
| 3936 | |
| 3937 | SAFE_BYTE_GET_AND_INC (flags, curr, 1, end); |
| 3938 | if (flags & 1) |
| 3939 | offset_size = 8; |
| 3940 | printf (_(" Offset: 0x%lx\n"), |
| 3941 | (unsigned long) sec_offset); |
| 3942 | printf (_(" Version: %d\n"), version); |
| 3943 | printf (_(" Offset size: %d\n"), offset_size); |
| 3944 | if (flags & 2) |
| 3945 | { |
| 3946 | SAFE_BYTE_GET_AND_INC (line_offset, curr, offset_size, end); |
| 3947 | printf (_(" Offset into .debug_line: 0x%lx\n"), |
| 3948 | (unsigned long) line_offset); |
| 3949 | } |
| 3950 | if (flags & 4) |
| 3951 | { |
| 3952 | unsigned int i, count, op; |
| 3953 | dwarf_vma nargs, n; |
| 3954 | |
| 3955 | SAFE_BYTE_GET_AND_INC (count, curr, 1, end); |
| 3956 | |
| 3957 | memset (extended_op_buf, 0, sizeof (extended_op_buf)); |
| 3958 | extended_ops = extended_op_buf; |
| 3959 | if (count) |
| 3960 | { |
| 3961 | printf (_(" Extension opcode arguments:\n")); |
| 3962 | for (i = 0; i < count; i++) |
| 3963 | { |
| 3964 | SAFE_BYTE_GET_AND_INC (op, curr, 1, end); |
| 3965 | extended_ops[op] = curr; |
| 3966 | nargs = read_uleb128 (curr, &bytes_read, end); |
| 3967 | curr += bytes_read; |
| 3968 | if (nargs == 0) |
| 3969 | printf (_(" DW_MACRO_GNU_%02x has no arguments\n"), op); |
| 3970 | else |
| 3971 | { |
| 3972 | printf (_(" DW_MACRO_GNU_%02x arguments: "), op); |
| 3973 | for (n = 0; n < nargs; n++) |
| 3974 | { |
| 3975 | unsigned int form; |
| 3976 | |
| 3977 | SAFE_BYTE_GET_AND_INC (form, curr, 1, end); |
| 3978 | printf ("%s%s", get_FORM_name (form), |
| 3979 | n == nargs - 1 ? "\n" : ", "); |
| 3980 | switch (form) |
| 3981 | { |
| 3982 | case DW_FORM_data1: |
| 3983 | case DW_FORM_data2: |
| 3984 | case DW_FORM_data4: |
| 3985 | case DW_FORM_data8: |
| 3986 | case DW_FORM_sdata: |
| 3987 | case DW_FORM_udata: |
| 3988 | case DW_FORM_block: |
| 3989 | case DW_FORM_block1: |
| 3990 | case DW_FORM_block2: |
| 3991 | case DW_FORM_block4: |
| 3992 | case DW_FORM_flag: |
| 3993 | case DW_FORM_string: |
| 3994 | case DW_FORM_strp: |
| 3995 | case DW_FORM_sec_offset: |
| 3996 | break; |
| 3997 | default: |
| 3998 | error (_("Invalid extension opcode form %s\n"), |
| 3999 | get_FORM_name (form)); |
| 4000 | return 0; |
| 4001 | } |
| 4002 | } |
| 4003 | } |
| 4004 | } |
| 4005 | } |
| 4006 | } |
| 4007 | printf ("\n"); |
| 4008 | |
| 4009 | while (1) |
| 4010 | { |
| 4011 | unsigned int op; |
| 4012 | |
| 4013 | if (curr >= end) |
| 4014 | { |
| 4015 | error (_(".debug_macro section not zero terminated\n")); |
| 4016 | return 0; |
| 4017 | } |
| 4018 | |
| 4019 | SAFE_BYTE_GET_AND_INC (op, curr, 1, end); |
| 4020 | if (op == 0) |
| 4021 | break; |
| 4022 | |
| 4023 | switch (op) |
| 4024 | { |
| 4025 | case DW_MACRO_GNU_start_file: |
| 4026 | { |
| 4027 | unsigned int filenum; |
| 4028 | unsigned char *file_name = NULL, *dir_name = NULL; |
| 4029 | |
| 4030 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4031 | curr += bytes_read; |
| 4032 | filenum = read_uleb128 (curr, &bytes_read, end); |
| 4033 | curr += bytes_read; |
| 4034 | |
| 4035 | if ((flags & 2) == 0) |
| 4036 | error (_("DW_MACRO_GNU_start_file used, but no .debug_line offset provided.\n")); |
| 4037 | else |
| 4038 | file_name |
| 4039 | = get_line_filename_and_dirname (line_offset, filenum, |
| 4040 | &dir_name); |
| 4041 | if (file_name == NULL) |
| 4042 | printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d\n"), |
| 4043 | lineno, filenum); |
| 4044 | else |
| 4045 | printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d filename: %s%s%s\n"), |
| 4046 | lineno, filenum, |
| 4047 | dir_name != NULL ? (const char *) dir_name : "", |
| 4048 | dir_name != NULL ? "/" : "", file_name); |
| 4049 | } |
| 4050 | break; |
| 4051 | |
| 4052 | case DW_MACRO_GNU_end_file: |
| 4053 | printf (_(" DW_MACRO_GNU_end_file\n")); |
| 4054 | break; |
| 4055 | |
| 4056 | case DW_MACRO_GNU_define: |
| 4057 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4058 | curr += bytes_read; |
| 4059 | string = curr; |
| 4060 | curr += strnlen ((char *) string, end - string) + 1; |
| 4061 | printf (_(" DW_MACRO_GNU_define - lineno : %d macro : %s\n"), |
| 4062 | lineno, string); |
| 4063 | break; |
| 4064 | |
| 4065 | case DW_MACRO_GNU_undef: |
| 4066 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4067 | curr += bytes_read; |
| 4068 | string = curr; |
| 4069 | curr += strnlen ((char *) string, end - string) + 1; |
| 4070 | printf (_(" DW_MACRO_GNU_undef - lineno : %d macro : %s\n"), |
| 4071 | lineno, string); |
| 4072 | break; |
| 4073 | |
| 4074 | case DW_MACRO_GNU_define_indirect: |
| 4075 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4076 | curr += bytes_read; |
| 4077 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4078 | string = fetch_indirect_string (offset); |
| 4079 | printf (_(" DW_MACRO_GNU_define_indirect - lineno : %d macro : %s\n"), |
| 4080 | lineno, string); |
| 4081 | break; |
| 4082 | |
| 4083 | case DW_MACRO_GNU_undef_indirect: |
| 4084 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4085 | curr += bytes_read; |
| 4086 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4087 | string = fetch_indirect_string (offset); |
| 4088 | printf (_(" DW_MACRO_GNU_undef_indirect - lineno : %d macro : %s\n"), |
| 4089 | lineno, string); |
| 4090 | break; |
| 4091 | |
| 4092 | case DW_MACRO_GNU_transparent_include: |
| 4093 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4094 | printf (_(" DW_MACRO_GNU_transparent_include - offset : 0x%lx\n"), |
| 4095 | (unsigned long) offset); |
| 4096 | break; |
| 4097 | |
| 4098 | case DW_MACRO_GNU_define_indirect_alt: |
| 4099 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4100 | curr += bytes_read; |
| 4101 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4102 | printf (_(" DW_MACRO_GNU_define_indirect_alt - lineno : %d macro offset : 0x%lx\n"), |
| 4103 | lineno, (unsigned long) offset); |
| 4104 | break; |
| 4105 | |
| 4106 | case DW_MACRO_GNU_undef_indirect_alt: |
| 4107 | lineno = read_uleb128 (curr, &bytes_read, end); |
| 4108 | curr += bytes_read; |
| 4109 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4110 | printf (_(" DW_MACRO_GNU_undef_indirect_alt - lineno : %d macro offset : 0x%lx\n"), |
| 4111 | lineno, (unsigned long) offset); |
| 4112 | break; |
| 4113 | |
| 4114 | case DW_MACRO_GNU_transparent_include_alt: |
| 4115 | SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| 4116 | printf (_(" DW_MACRO_GNU_transparent_include_alt - offset : 0x%lx\n"), |
| 4117 | (unsigned long) offset); |
| 4118 | break; |
| 4119 | |
| 4120 | default: |
| 4121 | if (extended_ops == NULL || extended_ops[op] == NULL) |
| 4122 | { |
| 4123 | error (_(" Unknown macro opcode %02x seen\n"), op); |
| 4124 | return 0; |
| 4125 | } |
| 4126 | else |
| 4127 | { |
| 4128 | /* Skip over unhandled opcodes. */ |
| 4129 | dwarf_vma nargs, n; |
| 4130 | unsigned char *desc = extended_ops[op]; |
| 4131 | nargs = read_uleb128 (desc, &bytes_read, end); |
| 4132 | desc += bytes_read; |
| 4133 | if (nargs == 0) |
| 4134 | { |
| 4135 | printf (_(" DW_MACRO_GNU_%02x\n"), op); |
| 4136 | break; |
| 4137 | } |
| 4138 | printf (_(" DW_MACRO_GNU_%02x -"), op); |
| 4139 | for (n = 0; n < nargs; n++) |
| 4140 | { |
| 4141 | int val; |
| 4142 | |
| 4143 | SAFE_BYTE_GET_AND_INC (val, desc, 1, end); |
| 4144 | curr |
| 4145 | = read_and_display_attr_value (0, val, |
| 4146 | curr, end, 0, 0, offset_size, |
| 4147 | version, NULL, 0, NULL, |
| 4148 | NULL); |
| 4149 | if (n != nargs - 1) |
| 4150 | printf (","); |
| 4151 | } |
| 4152 | printf ("\n"); |
| 4153 | } |
| 4154 | break; |
| 4155 | } |
| 4156 | } |
| 4157 | |
| 4158 | printf ("\n"); |
| 4159 | } |
| 4160 | |
| 4161 | return 1; |
| 4162 | } |
| 4163 | |
| 4164 | static int |
| 4165 | display_debug_abbrev (struct dwarf_section *section, |
| 4166 | void *file ATTRIBUTE_UNUSED) |
| 4167 | { |
| 4168 | abbrev_entry *entry; |
| 4169 | unsigned char *start = section->start; |
| 4170 | unsigned char *end = start + section->size; |
| 4171 | |
| 4172 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4173 | |
| 4174 | do |
| 4175 | { |
| 4176 | unsigned char *last; |
| 4177 | |
| 4178 | free_abbrevs (); |
| 4179 | |
| 4180 | last = start; |
| 4181 | start = process_abbrev_section (start, end); |
| 4182 | |
| 4183 | if (first_abbrev == NULL) |
| 4184 | continue; |
| 4185 | |
| 4186 | printf (_(" Number TAG (0x%lx)\n"), (long) (last - section->start)); |
| 4187 | |
| 4188 | for (entry = first_abbrev; entry; entry = entry->next) |
| 4189 | { |
| 4190 | abbrev_attr *attr; |
| 4191 | |
| 4192 | printf (" %ld %s [%s]\n", |
| 4193 | entry->entry, |
| 4194 | get_TAG_name (entry->tag), |
| 4195 | entry->children ? _("has children") : _("no children")); |
| 4196 | |
| 4197 | for (attr = entry->first_attr; attr; attr = attr->next) |
| 4198 | printf (" %-18s %s\n", |
| 4199 | get_AT_name (attr->attribute), |
| 4200 | get_FORM_name (attr->form)); |
| 4201 | } |
| 4202 | } |
| 4203 | while (start); |
| 4204 | |
| 4205 | printf ("\n"); |
| 4206 | |
| 4207 | return 1; |
| 4208 | } |
| 4209 | |
| 4210 | /* Display a location list from a normal (ie, non-dwo) .debug_loc section. */ |
| 4211 | |
| 4212 | static void |
| 4213 | display_loc_list (struct dwarf_section *section, |
| 4214 | unsigned char **start_ptr, |
| 4215 | int debug_info_entry, |
| 4216 | unsigned long offset, |
| 4217 | unsigned long base_address, |
| 4218 | int has_frame_base) |
| 4219 | { |
| 4220 | unsigned char *start = *start_ptr; |
| 4221 | unsigned char *section_end = section->start + section->size; |
| 4222 | unsigned long cu_offset = debug_information [debug_info_entry].cu_offset; |
| 4223 | unsigned int pointer_size = debug_information [debug_info_entry].pointer_size; |
| 4224 | unsigned int offset_size = debug_information [debug_info_entry].offset_size; |
| 4225 | int dwarf_version = debug_information [debug_info_entry].dwarf_version; |
| 4226 | |
| 4227 | dwarf_vma begin; |
| 4228 | dwarf_vma end; |
| 4229 | unsigned short length; |
| 4230 | int need_frame_base; |
| 4231 | |
| 4232 | if (pointer_size < 2 || pointer_size > 8) |
| 4233 | { |
| 4234 | warn (_("Invalid pointer size (%d) in debug info for entry %d\n"), |
| 4235 | pointer_size, debug_info_entry); |
| 4236 | return; |
| 4237 | } |
| 4238 | |
| 4239 | while (1) |
| 4240 | { |
| 4241 | if (start + 2 * pointer_size > section_end) |
| 4242 | { |
| 4243 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4244 | offset); |
| 4245 | break; |
| 4246 | } |
| 4247 | |
| 4248 | printf (" %8.8lx ", offset + (start - *start_ptr)); |
| 4249 | |
| 4250 | /* Note: we use sign extension here in order to be sure that we can detect |
| 4251 | the -1 escape value. Sign extension into the top 32 bits of a 32-bit |
| 4252 | address will not affect the values that we display since we always show |
| 4253 | hex values, and always the bottom 32-bits. */ |
| 4254 | SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end); |
| 4255 | SAFE_BYTE_GET_AND_INC (end, start, pointer_size, section_end); |
| 4256 | |
| 4257 | if (begin == 0 && end == 0) |
| 4258 | { |
| 4259 | printf (_("<End of list>\n")); |
| 4260 | break; |
| 4261 | } |
| 4262 | |
| 4263 | /* Check base address specifiers. */ |
| 4264 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
| 4265 | { |
| 4266 | base_address = end; |
| 4267 | print_dwarf_vma (begin, pointer_size); |
| 4268 | print_dwarf_vma (end, pointer_size); |
| 4269 | printf (_("(base address)\n")); |
| 4270 | continue; |
| 4271 | } |
| 4272 | |
| 4273 | if (start + 2 > section_end) |
| 4274 | { |
| 4275 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4276 | offset); |
| 4277 | break; |
| 4278 | } |
| 4279 | |
| 4280 | SAFE_BYTE_GET_AND_INC (length, start, 2, section_end); |
| 4281 | |
| 4282 | if (start + length > section_end) |
| 4283 | { |
| 4284 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4285 | offset); |
| 4286 | break; |
| 4287 | } |
| 4288 | |
| 4289 | print_dwarf_vma (begin + base_address, pointer_size); |
| 4290 | print_dwarf_vma (end + base_address, pointer_size); |
| 4291 | |
| 4292 | putchar ('('); |
| 4293 | need_frame_base = decode_location_expression (start, |
| 4294 | pointer_size, |
| 4295 | offset_size, |
| 4296 | dwarf_version, |
| 4297 | length, |
| 4298 | cu_offset, section); |
| 4299 | putchar (')'); |
| 4300 | |
| 4301 | if (need_frame_base && !has_frame_base) |
| 4302 | printf (_(" [without DW_AT_frame_base]")); |
| 4303 | |
| 4304 | if (begin == end) |
| 4305 | fputs (_(" (start == end)"), stdout); |
| 4306 | else if (begin > end) |
| 4307 | fputs (_(" (start > end)"), stdout); |
| 4308 | |
| 4309 | putchar ('\n'); |
| 4310 | |
| 4311 | start += length; |
| 4312 | } |
| 4313 | |
| 4314 | *start_ptr = start; |
| 4315 | } |
| 4316 | |
| 4317 | /* Print a .debug_addr table index in decimal, surrounded by square brackets, |
| 4318 | right-adjusted in a field of length LEN, and followed by a space. */ |
| 4319 | |
| 4320 | static void |
| 4321 | print_addr_index (unsigned int idx, unsigned int len) |
| 4322 | { |
| 4323 | static char buf[15]; |
| 4324 | snprintf (buf, sizeof (buf), "[%d]", idx); |
| 4325 | printf ("%*s ", len, buf); |
| 4326 | } |
| 4327 | |
| 4328 | /* Display a location list from a .dwo section. It uses address indexes rather |
| 4329 | than embedded addresses. This code closely follows display_loc_list, but the |
| 4330 | two are sufficiently different that combining things is very ugly. */ |
| 4331 | |
| 4332 | static void |
| 4333 | display_loc_list_dwo (struct dwarf_section *section, |
| 4334 | unsigned char **start_ptr, |
| 4335 | int debug_info_entry, |
| 4336 | unsigned long offset, |
| 4337 | int has_frame_base) |
| 4338 | { |
| 4339 | unsigned char *start = *start_ptr; |
| 4340 | unsigned char *section_end = section->start + section->size; |
| 4341 | unsigned long cu_offset = debug_information [debug_info_entry].cu_offset; |
| 4342 | unsigned int pointer_size = debug_information [debug_info_entry].pointer_size; |
| 4343 | unsigned int offset_size = debug_information [debug_info_entry].offset_size; |
| 4344 | int dwarf_version = debug_information [debug_info_entry].dwarf_version; |
| 4345 | int entry_type; |
| 4346 | unsigned short length; |
| 4347 | int need_frame_base; |
| 4348 | unsigned int idx; |
| 4349 | unsigned int bytes_read; |
| 4350 | |
| 4351 | if (pointer_size < 2 || pointer_size > 8) |
| 4352 | { |
| 4353 | warn (_("Invalid pointer size (%d) in debug info for entry %d\n"), |
| 4354 | pointer_size, debug_info_entry); |
| 4355 | return; |
| 4356 | } |
| 4357 | |
| 4358 | while (1) |
| 4359 | { |
| 4360 | printf (" %8.8lx ", offset + (start - *start_ptr)); |
| 4361 | |
| 4362 | if (start >= section_end) |
| 4363 | { |
| 4364 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4365 | offset); |
| 4366 | break; |
| 4367 | } |
| 4368 | |
| 4369 | SAFE_BYTE_GET_AND_INC (entry_type, start, 1, section_end); |
| 4370 | switch (entry_type) |
| 4371 | { |
| 4372 | case 0: /* A terminating entry. */ |
| 4373 | *start_ptr = start; |
| 4374 | printf (_("<End of list>\n")); |
| 4375 | return; |
| 4376 | case 1: /* A base-address entry. */ |
| 4377 | idx = read_uleb128 (start, &bytes_read, section_end); |
| 4378 | start += bytes_read; |
| 4379 | print_addr_index (idx, 8); |
| 4380 | printf (" "); |
| 4381 | printf (_("(base address selection entry)\n")); |
| 4382 | continue; |
| 4383 | case 2: /* A start/end entry. */ |
| 4384 | idx = read_uleb128 (start, &bytes_read, section_end); |
| 4385 | start += bytes_read; |
| 4386 | print_addr_index (idx, 8); |
| 4387 | idx = read_uleb128 (start, &bytes_read, section_end); |
| 4388 | start += bytes_read; |
| 4389 | print_addr_index (idx, 8); |
| 4390 | break; |
| 4391 | case 3: /* A start/length entry. */ |
| 4392 | idx = read_uleb128 (start, &bytes_read, section_end); |
| 4393 | start += bytes_read; |
| 4394 | print_addr_index (idx, 8); |
| 4395 | SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); |
| 4396 | printf ("%08x ", idx); |
| 4397 | break; |
| 4398 | case 4: /* An offset pair entry. */ |
| 4399 | SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); |
| 4400 | printf ("%08x ", idx); |
| 4401 | SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); |
| 4402 | printf ("%08x ", idx); |
| 4403 | break; |
| 4404 | default: |
| 4405 | warn (_("Unknown location list entry type 0x%x.\n"), entry_type); |
| 4406 | *start_ptr = start; |
| 4407 | return; |
| 4408 | } |
| 4409 | |
| 4410 | if (start + 2 > section_end) |
| 4411 | { |
| 4412 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4413 | offset); |
| 4414 | break; |
| 4415 | } |
| 4416 | |
| 4417 | SAFE_BYTE_GET_AND_INC (length, start, 2, section_end); |
| 4418 | if (start + length > section_end) |
| 4419 | { |
| 4420 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| 4421 | offset); |
| 4422 | break; |
| 4423 | } |
| 4424 | |
| 4425 | putchar ('('); |
| 4426 | need_frame_base = decode_location_expression (start, |
| 4427 | pointer_size, |
| 4428 | offset_size, |
| 4429 | dwarf_version, |
| 4430 | length, |
| 4431 | cu_offset, section); |
| 4432 | putchar (')'); |
| 4433 | |
| 4434 | if (need_frame_base && !has_frame_base) |
| 4435 | printf (_(" [without DW_AT_frame_base]")); |
| 4436 | |
| 4437 | putchar ('\n'); |
| 4438 | |
| 4439 | start += length; |
| 4440 | } |
| 4441 | |
| 4442 | *start_ptr = start; |
| 4443 | } |
| 4444 | |
| 4445 | /* Sort array of indexes in ascending order of loc_offsets[idx]. */ |
| 4446 | |
| 4447 | static dwarf_vma *loc_offsets; |
| 4448 | |
| 4449 | static int |
| 4450 | loc_offsets_compar (const void *ap, const void *bp) |
| 4451 | { |
| 4452 | dwarf_vma a = loc_offsets[*(const unsigned int *) ap]; |
| 4453 | dwarf_vma b = loc_offsets[*(const unsigned int *) bp]; |
| 4454 | |
| 4455 | return (a > b) - (b > a); |
| 4456 | } |
| 4457 | |
| 4458 | static int |
| 4459 | display_debug_loc (struct dwarf_section *section, void *file) |
| 4460 | { |
| 4461 | unsigned char *start = section->start; |
| 4462 | unsigned long bytes; |
| 4463 | unsigned char *section_begin = start; |
| 4464 | unsigned int num_loc_list = 0; |
| 4465 | unsigned long last_offset = 0; |
| 4466 | unsigned int first = 0; |
| 4467 | unsigned int i; |
| 4468 | unsigned int j; |
| 4469 | unsigned int k; |
| 4470 | int seen_first_offset = 0; |
| 4471 | int locs_sorted = 1; |
| 4472 | unsigned char *next; |
| 4473 | unsigned int *array = NULL; |
| 4474 | const char *suffix = strrchr (section->name, '.'); |
| 4475 | int is_dwo = 0; |
| 4476 | |
| 4477 | if (suffix && strcmp (suffix, ".dwo") == 0) |
| 4478 | is_dwo = 1; |
| 4479 | |
| 4480 | bytes = section->size; |
| 4481 | |
| 4482 | if (bytes == 0) |
| 4483 | { |
| 4484 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4485 | return 0; |
| 4486 | } |
| 4487 | |
| 4488 | if (load_debug_info (file) == 0) |
| 4489 | { |
| 4490 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 4491 | section->name); |
| 4492 | return 0; |
| 4493 | } |
| 4494 | |
| 4495 | /* Check the order of location list in .debug_info section. If |
| 4496 | offsets of location lists are in the ascending order, we can |
| 4497 | use `debug_information' directly. */ |
| 4498 | for (i = 0; i < num_debug_info_entries; i++) |
| 4499 | { |
| 4500 | unsigned int num; |
| 4501 | |
| 4502 | num = debug_information [i].num_loc_offsets; |
| 4503 | if (num > num_loc_list) |
| 4504 | num_loc_list = num; |
| 4505 | |
| 4506 | /* Check if we can use `debug_information' directly. */ |
| 4507 | if (locs_sorted && num != 0) |
| 4508 | { |
| 4509 | if (!seen_first_offset) |
| 4510 | { |
| 4511 | /* This is the first location list. */ |
| 4512 | last_offset = debug_information [i].loc_offsets [0]; |
| 4513 | first = i; |
| 4514 | seen_first_offset = 1; |
| 4515 | j = 1; |
| 4516 | } |
| 4517 | else |
| 4518 | j = 0; |
| 4519 | |
| 4520 | for (; j < num; j++) |
| 4521 | { |
| 4522 | if (last_offset > |
| 4523 | debug_information [i].loc_offsets [j]) |
| 4524 | { |
| 4525 | locs_sorted = 0; |
| 4526 | break; |
| 4527 | } |
| 4528 | last_offset = debug_information [i].loc_offsets [j]; |
| 4529 | } |
| 4530 | } |
| 4531 | } |
| 4532 | |
| 4533 | if (!seen_first_offset) |
| 4534 | error (_("No location lists in .debug_info section!\n")); |
| 4535 | |
| 4536 | if (debug_information [first].num_loc_offsets > 0 |
| 4537 | && debug_information [first].loc_offsets [0] != 0) |
| 4538 | warn (_("Location lists in %s section start at 0x%s\n"), |
| 4539 | section->name, |
| 4540 | dwarf_vmatoa ("x", debug_information [first].loc_offsets [0])); |
| 4541 | |
| 4542 | if (!locs_sorted) |
| 4543 | array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int)); |
| 4544 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4545 | printf (_(" Offset Begin End Expression\n")); |
| 4546 | |
| 4547 | seen_first_offset = 0; |
| 4548 | for (i = first; i < num_debug_info_entries; i++) |
| 4549 | { |
| 4550 | unsigned long offset; |
| 4551 | unsigned long base_address; |
| 4552 | int has_frame_base; |
| 4553 | |
| 4554 | if (!locs_sorted) |
| 4555 | { |
| 4556 | for (k = 0; k < debug_information [i].num_loc_offsets; k++) |
| 4557 | array[k] = k; |
| 4558 | loc_offsets = debug_information [i].loc_offsets; |
| 4559 | qsort (array, debug_information [i].num_loc_offsets, |
| 4560 | sizeof (*array), loc_offsets_compar); |
| 4561 | } |
| 4562 | |
| 4563 | for (k = 0; k < debug_information [i].num_loc_offsets; k++) |
| 4564 | { |
| 4565 | j = locs_sorted ? k : array[k]; |
| 4566 | if (k |
| 4567 | && debug_information [i].loc_offsets [locs_sorted |
| 4568 | ? k - 1 : array [k - 1]] |
| 4569 | == debug_information [i].loc_offsets [j]) |
| 4570 | continue; |
| 4571 | has_frame_base = debug_information [i].have_frame_base [j]; |
| 4572 | offset = debug_information [i].loc_offsets [j]; |
| 4573 | next = section_begin + offset; |
| 4574 | base_address = debug_information [i].base_address; |
| 4575 | |
| 4576 | if (!seen_first_offset) |
| 4577 | seen_first_offset = 1; |
| 4578 | else |
| 4579 | { |
| 4580 | if (start < next) |
| 4581 | warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"), |
| 4582 | (unsigned long) (start - section_begin), |
| 4583 | (unsigned long) (next - section_begin)); |
| 4584 | else if (start > next) |
| 4585 | warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"), |
| 4586 | (unsigned long) (start - section_begin), |
| 4587 | (unsigned long) (next - section_begin)); |
| 4588 | } |
| 4589 | start = next; |
| 4590 | |
| 4591 | if (offset >= bytes) |
| 4592 | { |
| 4593 | warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"), |
| 4594 | offset); |
| 4595 | continue; |
| 4596 | } |
| 4597 | |
| 4598 | if (is_dwo) |
| 4599 | display_loc_list_dwo (section, &start, i, offset, has_frame_base); |
| 4600 | else |
| 4601 | display_loc_list (section, &start, i, offset, base_address, |
| 4602 | has_frame_base); |
| 4603 | } |
| 4604 | } |
| 4605 | |
| 4606 | if (start < section->start + section->size) |
| 4607 | warn (_("There are %ld unused bytes at the end of section %s\n"), |
| 4608 | (long) (section->start + section->size - start), section->name); |
| 4609 | putchar ('\n'); |
| 4610 | free (array); |
| 4611 | return 1; |
| 4612 | } |
| 4613 | |
| 4614 | static int |
| 4615 | display_debug_str (struct dwarf_section *section, |
| 4616 | void *file ATTRIBUTE_UNUSED) |
| 4617 | { |
| 4618 | unsigned char *start = section->start; |
| 4619 | unsigned long bytes = section->size; |
| 4620 | dwarf_vma addr = section->address; |
| 4621 | |
| 4622 | if (bytes == 0) |
| 4623 | { |
| 4624 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4625 | return 0; |
| 4626 | } |
| 4627 | |
| 4628 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4629 | |
| 4630 | while (bytes) |
| 4631 | { |
| 4632 | int j; |
| 4633 | int k; |
| 4634 | int lbytes; |
| 4635 | |
| 4636 | lbytes = (bytes > 16 ? 16 : bytes); |
| 4637 | |
| 4638 | printf (" 0x%8.8lx ", (unsigned long) addr); |
| 4639 | |
| 4640 | for (j = 0; j < 16; j++) |
| 4641 | { |
| 4642 | if (j < lbytes) |
| 4643 | printf ("%2.2x", start[j]); |
| 4644 | else |
| 4645 | printf (" "); |
| 4646 | |
| 4647 | if ((j & 3) == 3) |
| 4648 | printf (" "); |
| 4649 | } |
| 4650 | |
| 4651 | for (j = 0; j < lbytes; j++) |
| 4652 | { |
| 4653 | k = start[j]; |
| 4654 | if (k >= ' ' && k < 0x80) |
| 4655 | printf ("%c", k); |
| 4656 | else |
| 4657 | printf ("."); |
| 4658 | } |
| 4659 | |
| 4660 | putchar ('\n'); |
| 4661 | |
| 4662 | start += lbytes; |
| 4663 | addr += lbytes; |
| 4664 | bytes -= lbytes; |
| 4665 | } |
| 4666 | |
| 4667 | putchar ('\n'); |
| 4668 | |
| 4669 | return 1; |
| 4670 | } |
| 4671 | |
| 4672 | static int |
| 4673 | display_debug_info (struct dwarf_section *section, void *file) |
| 4674 | { |
| 4675 | return process_debug_info (section, file, section->abbrev_sec, 0, 0); |
| 4676 | } |
| 4677 | |
| 4678 | static int |
| 4679 | display_debug_types (struct dwarf_section *section, void *file) |
| 4680 | { |
| 4681 | return process_debug_info (section, file, section->abbrev_sec, 0, 1); |
| 4682 | } |
| 4683 | |
| 4684 | static int |
| 4685 | display_trace_info (struct dwarf_section *section, void *file) |
| 4686 | { |
| 4687 | return process_debug_info (section, file, section->abbrev_sec, 0, 0); |
| 4688 | } |
| 4689 | |
| 4690 | static int |
| 4691 | display_debug_aranges (struct dwarf_section *section, |
| 4692 | void *file ATTRIBUTE_UNUSED) |
| 4693 | { |
| 4694 | unsigned char *start = section->start; |
| 4695 | unsigned char *end = start + section->size; |
| 4696 | |
| 4697 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4698 | |
| 4699 | /* It does not matter if this load fails, |
| 4700 | we test for that later on. */ |
| 4701 | load_debug_info (file); |
| 4702 | |
| 4703 | while (start < end) |
| 4704 | { |
| 4705 | unsigned char *hdrptr; |
| 4706 | DWARF2_Internal_ARange arange; |
| 4707 | unsigned char *addr_ranges; |
| 4708 | dwarf_vma length; |
| 4709 | dwarf_vma address; |
| 4710 | unsigned char address_size; |
| 4711 | int excess; |
| 4712 | unsigned int offset_size; |
| 4713 | unsigned int initial_length_size; |
| 4714 | |
| 4715 | hdrptr = start; |
| 4716 | |
| 4717 | SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 4, end); |
| 4718 | if (arange.ar_length == 0xffffffff) |
| 4719 | { |
| 4720 | SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 8, end); |
| 4721 | offset_size = 8; |
| 4722 | initial_length_size = 12; |
| 4723 | } |
| 4724 | else |
| 4725 | { |
| 4726 | offset_size = 4; |
| 4727 | initial_length_size = 4; |
| 4728 | } |
| 4729 | |
| 4730 | SAFE_BYTE_GET_AND_INC (arange.ar_version, hdrptr, 2, end); |
| 4731 | SAFE_BYTE_GET_AND_INC (arange.ar_info_offset, hdrptr, offset_size, end); |
| 4732 | |
| 4733 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
| 4734 | && num_debug_info_entries > 0 |
| 4735 | && find_debug_info_for_offset (arange.ar_info_offset) == NULL) |
| 4736 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), |
| 4737 | (unsigned long) arange.ar_info_offset, section->name); |
| 4738 | |
| 4739 | SAFE_BYTE_GET_AND_INC (arange.ar_pointer_size, hdrptr, 1, end); |
| 4740 | SAFE_BYTE_GET_AND_INC (arange.ar_segment_size, hdrptr, 1, end); |
| 4741 | |
| 4742 | if (arange.ar_version != 2 && arange.ar_version != 3) |
| 4743 | { |
| 4744 | warn (_("Only DWARF 2 and 3 aranges are currently supported.\n")); |
| 4745 | break; |
| 4746 | } |
| 4747 | |
| 4748 | printf (_(" Length: %ld\n"), |
| 4749 | (long) arange.ar_length); |
| 4750 | printf (_(" Version: %d\n"), arange.ar_version); |
| 4751 | printf (_(" Offset into .debug_info: 0x%lx\n"), |
| 4752 | (unsigned long) arange.ar_info_offset); |
| 4753 | printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size); |
| 4754 | printf (_(" Segment Size: %d\n"), arange.ar_segment_size); |
| 4755 | |
| 4756 | address_size = arange.ar_pointer_size + arange.ar_segment_size; |
| 4757 | |
| 4758 | /* PR 17512: file: 001-108546-0.001:0.1. */ |
| 4759 | if (address_size == 0 || address_size > 8) |
| 4760 | { |
| 4761 | error (_("Invalid address size in %s section!\n"), |
| 4762 | section->name); |
| 4763 | break; |
| 4764 | } |
| 4765 | |
| 4766 | /* The DWARF spec does not require that the address size be a power |
| 4767 | of two, but we do. This will have to change if we ever encounter |
| 4768 | an uneven architecture. */ |
| 4769 | if ((address_size & (address_size - 1)) != 0) |
| 4770 | { |
| 4771 | warn (_("Pointer size + Segment size is not a power of two.\n")); |
| 4772 | break; |
| 4773 | } |
| 4774 | |
| 4775 | if (address_size > 4) |
| 4776 | printf (_("\n Address Length\n")); |
| 4777 | else |
| 4778 | printf (_("\n Address Length\n")); |
| 4779 | |
| 4780 | addr_ranges = hdrptr; |
| 4781 | |
| 4782 | /* Must pad to an alignment boundary that is twice the address size. */ |
| 4783 | excess = (hdrptr - start) % (2 * address_size); |
| 4784 | if (excess) |
| 4785 | addr_ranges += (2 * address_size) - excess; |
| 4786 | |
| 4787 | start += arange.ar_length + initial_length_size; |
| 4788 | |
| 4789 | while (addr_ranges + 2 * address_size <= start) |
| 4790 | { |
| 4791 | SAFE_BYTE_GET_AND_INC (address, addr_ranges, address_size, end); |
| 4792 | SAFE_BYTE_GET_AND_INC (length, addr_ranges, address_size, end); |
| 4793 | |
| 4794 | printf (" "); |
| 4795 | print_dwarf_vma (address, address_size); |
| 4796 | print_dwarf_vma (length, address_size); |
| 4797 | putchar ('\n'); |
| 4798 | } |
| 4799 | } |
| 4800 | |
| 4801 | printf ("\n"); |
| 4802 | |
| 4803 | return 1; |
| 4804 | } |
| 4805 | |
| 4806 | /* Comparison function for qsort. */ |
| 4807 | static int |
| 4808 | comp_addr_base (const void * v0, const void * v1) |
| 4809 | { |
| 4810 | debug_info * info0 = (debug_info *) v0; |
| 4811 | debug_info * info1 = (debug_info *) v1; |
| 4812 | return info0->addr_base - info1->addr_base; |
| 4813 | } |
| 4814 | |
| 4815 | /* Display the debug_addr section. */ |
| 4816 | static int |
| 4817 | display_debug_addr (struct dwarf_section *section, |
| 4818 | void *file) |
| 4819 | { |
| 4820 | debug_info **debug_addr_info; |
| 4821 | unsigned char *entry; |
| 4822 | unsigned char *end; |
| 4823 | unsigned int i; |
| 4824 | unsigned int count; |
| 4825 | |
| 4826 | if (section->size == 0) |
| 4827 | { |
| 4828 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4829 | return 0; |
| 4830 | } |
| 4831 | |
| 4832 | if (load_debug_info (file) == 0) |
| 4833 | { |
| 4834 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 4835 | section->name); |
| 4836 | return 0; |
| 4837 | } |
| 4838 | |
| 4839 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4840 | |
| 4841 | debug_addr_info = (debug_info **) xmalloc ((num_debug_info_entries + 1) |
| 4842 | * sizeof (debug_info *)); |
| 4843 | |
| 4844 | count = 0; |
| 4845 | for (i = 0; i < num_debug_info_entries; i++) |
| 4846 | { |
| 4847 | if (debug_information [i].addr_base != DEBUG_INFO_UNAVAILABLE) |
| 4848 | debug_addr_info [count++] = &debug_information [i]; |
| 4849 | } |
| 4850 | |
| 4851 | /* Add a sentinel to make iteration convenient. */ |
| 4852 | debug_addr_info [count] = (debug_info *) xmalloc (sizeof (debug_info)); |
| 4853 | debug_addr_info [count]->addr_base = section->size; |
| 4854 | |
| 4855 | qsort (debug_addr_info, count, sizeof (debug_info *), comp_addr_base); |
| 4856 | for (i = 0; i < count; i++) |
| 4857 | { |
| 4858 | unsigned int idx; |
| 4859 | unsigned int address_size = debug_addr_info [i]->pointer_size; |
| 4860 | |
| 4861 | printf (_(" For compilation unit at offset 0x%s:\n"), |
| 4862 | dwarf_vmatoa ("x", debug_addr_info [i]->cu_offset)); |
| 4863 | |
| 4864 | printf (_("\tIndex\tAddress\n")); |
| 4865 | entry = section->start + debug_addr_info [i]->addr_base; |
| 4866 | end = section->start + debug_addr_info [i + 1]->addr_base; |
| 4867 | idx = 0; |
| 4868 | while (entry < end) |
| 4869 | { |
| 4870 | dwarf_vma base = byte_get (entry, address_size); |
| 4871 | printf (_("\t%d:\t"), idx); |
| 4872 | print_dwarf_vma (base, address_size); |
| 4873 | printf ("\n"); |
| 4874 | entry += address_size; |
| 4875 | idx++; |
| 4876 | } |
| 4877 | } |
| 4878 | printf ("\n"); |
| 4879 | |
| 4880 | free (debug_addr_info); |
| 4881 | return 1; |
| 4882 | } |
| 4883 | |
| 4884 | /* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */ |
| 4885 | static int |
| 4886 | display_debug_str_offsets (struct dwarf_section *section, |
| 4887 | void *file ATTRIBUTE_UNUSED) |
| 4888 | { |
| 4889 | if (section->size == 0) |
| 4890 | { |
| 4891 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4892 | return 0; |
| 4893 | } |
| 4894 | /* TODO: Dump the contents. This is made somewhat difficult by not knowing |
| 4895 | what the offset size is for this section. */ |
| 4896 | return 1; |
| 4897 | } |
| 4898 | |
| 4899 | /* Each debug_information[x].range_lists[y] gets this representation for |
| 4900 | sorting purposes. */ |
| 4901 | |
| 4902 | struct range_entry |
| 4903 | { |
| 4904 | /* The debug_information[x].range_lists[y] value. */ |
| 4905 | unsigned long ranges_offset; |
| 4906 | |
| 4907 | /* Original debug_information to find parameters of the data. */ |
| 4908 | debug_info *debug_info_p; |
| 4909 | }; |
| 4910 | |
| 4911 | /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */ |
| 4912 | |
| 4913 | static int |
| 4914 | range_entry_compar (const void *ap, const void *bp) |
| 4915 | { |
| 4916 | const struct range_entry *a_re = (const struct range_entry *) ap; |
| 4917 | const struct range_entry *b_re = (const struct range_entry *) bp; |
| 4918 | const unsigned long a = a_re->ranges_offset; |
| 4919 | const unsigned long b = b_re->ranges_offset; |
| 4920 | |
| 4921 | return (a > b) - (b > a); |
| 4922 | } |
| 4923 | |
| 4924 | static int |
| 4925 | display_debug_ranges (struct dwarf_section *section, |
| 4926 | void *file ATTRIBUTE_UNUSED) |
| 4927 | { |
| 4928 | unsigned char *start = section->start; |
| 4929 | unsigned char *last_start = start; |
| 4930 | unsigned long bytes = section->size; |
| 4931 | unsigned char *section_begin = start; |
| 4932 | unsigned char *finish = start + bytes; |
| 4933 | unsigned int num_range_list, i; |
| 4934 | struct range_entry *range_entries, *range_entry_fill; |
| 4935 | |
| 4936 | if (bytes == 0) |
| 4937 | { |
| 4938 | printf (_("\nThe %s section is empty.\n"), section->name); |
| 4939 | return 0; |
| 4940 | } |
| 4941 | |
| 4942 | if (load_debug_info (file) == 0) |
| 4943 | { |
| 4944 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| 4945 | section->name); |
| 4946 | return 0; |
| 4947 | } |
| 4948 | |
| 4949 | num_range_list = 0; |
| 4950 | for (i = 0; i < num_debug_info_entries; i++) |
| 4951 | num_range_list += debug_information [i].num_range_lists; |
| 4952 | |
| 4953 | if (num_range_list == 0) |
| 4954 | { |
| 4955 | /* This can happen when the file was compiled with -gsplit-debug |
| 4956 | which removes references to range lists from the primary .o file. */ |
| 4957 | printf (_("No range lists in .debug_info section.\n")); |
| 4958 | return 1; |
| 4959 | } |
| 4960 | |
| 4961 | range_entries = (struct range_entry *) |
| 4962 | xmalloc (sizeof (*range_entries) * num_range_list); |
| 4963 | range_entry_fill = range_entries; |
| 4964 | |
| 4965 | for (i = 0; i < num_debug_info_entries; i++) |
| 4966 | { |
| 4967 | debug_info *debug_info_p = &debug_information[i]; |
| 4968 | unsigned int j; |
| 4969 | |
| 4970 | for (j = 0; j < debug_info_p->num_range_lists; j++) |
| 4971 | { |
| 4972 | range_entry_fill->ranges_offset = debug_info_p->range_lists[j]; |
| 4973 | range_entry_fill->debug_info_p = debug_info_p; |
| 4974 | range_entry_fill++; |
| 4975 | } |
| 4976 | } |
| 4977 | |
| 4978 | qsort (range_entries, num_range_list, sizeof (*range_entries), |
| 4979 | range_entry_compar); |
| 4980 | |
| 4981 | if (dwarf_check != 0 && range_entries[0].ranges_offset != 0) |
| 4982 | warn (_("Range lists in %s section start at 0x%lx\n"), |
| 4983 | section->name, range_entries[0].ranges_offset); |
| 4984 | |
| 4985 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 4986 | printf (_(" Offset Begin End\n")); |
| 4987 | |
| 4988 | for (i = 0; i < num_range_list; i++) |
| 4989 | { |
| 4990 | struct range_entry *range_entry = &range_entries[i]; |
| 4991 | debug_info *debug_info_p = range_entry->debug_info_p; |
| 4992 | unsigned int pointer_size; |
| 4993 | unsigned long offset; |
| 4994 | unsigned char *next; |
| 4995 | unsigned long base_address; |
| 4996 | |
| 4997 | pointer_size = debug_info_p->pointer_size; |
| 4998 | offset = range_entry->ranges_offset; |
| 4999 | next = section_begin + offset; |
| 5000 | base_address = debug_info_p->base_address; |
| 5001 | |
| 5002 | /* PR 17512: file: 001-101485-0.001:0.1. */ |
| 5003 | if (pointer_size < 2 || pointer_size > 8) |
| 5004 | { |
| 5005 | warn (_("Corrupt pointer size (%d) in debug entry at offset %8.8lx\n"), |
| 5006 | pointer_size, offset); |
| 5007 | continue; |
| 5008 | } |
| 5009 | |
| 5010 | if (dwarf_check != 0 && i > 0) |
| 5011 | { |
| 5012 | if (start < next) |
| 5013 | warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"), |
| 5014 | (unsigned long) (start - section_begin), |
| 5015 | (unsigned long) (next - section_begin), section->name); |
| 5016 | else if (start > next) |
| 5017 | { |
| 5018 | if (next == last_start) |
| 5019 | continue; |
| 5020 | warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), |
| 5021 | (unsigned long) (start - section_begin), |
| 5022 | (unsigned long) (next - section_begin), section->name); |
| 5023 | } |
| 5024 | } |
| 5025 | start = next; |
| 5026 | last_start = next; |
| 5027 | |
| 5028 | while (start < finish) |
| 5029 | { |
| 5030 | dwarf_vma begin; |
| 5031 | dwarf_vma end; |
| 5032 | |
| 5033 | /* Note: we use sign extension here in order to be sure that |
| 5034 | we can detect the -1 escape value. Sign extension into the |
| 5035 | top 32 bits of a 32-bit address will not affect the values |
| 5036 | that we display since we always show hex values, and always |
| 5037 | the bottom 32-bits. */ |
| 5038 | SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish); |
| 5039 | if (start >= finish) |
| 5040 | break; |
| 5041 | SAFE_SIGNED_BYTE_GET_AND_INC (end, start, pointer_size, finish); |
| 5042 | |
| 5043 | printf (" %8.8lx ", offset); |
| 5044 | |
| 5045 | if (begin == 0 && end == 0) |
| 5046 | { |
| 5047 | printf (_("<End of list>\n")); |
| 5048 | break; |
| 5049 | } |
| 5050 | |
| 5051 | /* Check base address specifiers. */ |
| 5052 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
| 5053 | { |
| 5054 | base_address = end; |
| 5055 | print_dwarf_vma (begin, pointer_size); |
| 5056 | print_dwarf_vma (end, pointer_size); |
| 5057 | printf ("(base address)\n"); |
| 5058 | continue; |
| 5059 | } |
| 5060 | |
| 5061 | print_dwarf_vma (begin + base_address, pointer_size); |
| 5062 | print_dwarf_vma (end + base_address, pointer_size); |
| 5063 | |
| 5064 | if (begin == end) |
| 5065 | fputs (_("(start == end)"), stdout); |
| 5066 | else if (begin > end) |
| 5067 | fputs (_("(start > end)"), stdout); |
| 5068 | |
| 5069 | putchar ('\n'); |
| 5070 | } |
| 5071 | } |
| 5072 | putchar ('\n'); |
| 5073 | |
| 5074 | free (range_entries); |
| 5075 | |
| 5076 | return 1; |
| 5077 | } |
| 5078 | |
| 5079 | typedef struct Frame_Chunk |
| 5080 | { |
| 5081 | struct Frame_Chunk *next; |
| 5082 | unsigned char *chunk_start; |
| 5083 | int ncols; |
| 5084 | /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */ |
| 5085 | short int *col_type; |
| 5086 | int *col_offset; |
| 5087 | char *augmentation; |
| 5088 | unsigned int code_factor; |
| 5089 | int data_factor; |
| 5090 | dwarf_vma pc_begin; |
| 5091 | dwarf_vma pc_range; |
| 5092 | int cfa_reg; |
| 5093 | int cfa_offset; |
| 5094 | int ra; |
| 5095 | unsigned char fde_encoding; |
| 5096 | unsigned char cfa_exp; |
| 5097 | unsigned char ptr_size; |
| 5098 | unsigned char segment_size; |
| 5099 | } |
| 5100 | Frame_Chunk; |
| 5101 | |
| 5102 | static const char *const *dwarf_regnames; |
| 5103 | static unsigned int dwarf_regnames_count; |
| 5104 | |
| 5105 | /* A marker for a col_type that means this column was never referenced |
| 5106 | in the frame info. */ |
| 5107 | #define DW_CFA_unreferenced (-1) |
| 5108 | |
| 5109 | /* Return 0 if not more space is needed, 1 if more space is needed, |
| 5110 | -1 for invalid reg. */ |
| 5111 | |
| 5112 | static int |
| 5113 | frame_need_space (Frame_Chunk *fc, unsigned int reg) |
| 5114 | { |
| 5115 | int prev = fc->ncols; |
| 5116 | |
| 5117 | if (reg < (unsigned int) fc->ncols) |
| 5118 | return 0; |
| 5119 | |
| 5120 | if (dwarf_regnames_count |
| 5121 | && reg > dwarf_regnames_count) |
| 5122 | return -1; |
| 5123 | |
| 5124 | fc->ncols = reg + 1; |
| 5125 | fc->col_type = (short int *) xcrealloc (fc->col_type, fc->ncols, |
| 5126 | sizeof (short int)); |
| 5127 | fc->col_offset = (int *) xcrealloc (fc->col_offset, fc->ncols, sizeof (int)); |
| 5128 | /* PR 17512: file:002-10025-0.005. */ |
| 5129 | if (fc->col_type == NULL || fc->col_offset == NULL) |
| 5130 | { |
| 5131 | error (_("Out of memory allocating %u columns in dwarf frame arrays\n"), |
| 5132 | fc->ncols); |
| 5133 | fc->ncols = 0; |
| 5134 | return -1; |
| 5135 | } |
| 5136 | |
| 5137 | while (prev < fc->ncols) |
| 5138 | { |
| 5139 | fc->col_type[prev] = DW_CFA_unreferenced; |
| 5140 | fc->col_offset[prev] = 0; |
| 5141 | prev++; |
| 5142 | } |
| 5143 | return 1; |
| 5144 | } |
| 5145 | |
| 5146 | static const char *const dwarf_regnames_i386[] = |
| 5147 | { |
| 5148 | "eax", "ecx", "edx", "ebx", /* 0 - 3 */ |
| 5149 | "esp", "ebp", "esi", "edi", /* 4 - 7 */ |
| 5150 | "eip", "eflags", NULL, /* 8 - 10 */ |
| 5151 | "st0", "st1", "st2", "st3", /* 11 - 14 */ |
| 5152 | "st4", "st5", "st6", "st7", /* 15 - 18 */ |
| 5153 | NULL, NULL, /* 19 - 20 */ |
| 5154 | "xmm0", "xmm1", "xmm2", "xmm3", /* 21 - 24 */ |
| 5155 | "xmm4", "xmm5", "xmm6", "xmm7", /* 25 - 28 */ |
| 5156 | "mm0", "mm1", "mm2", "mm3", /* 29 - 32 */ |
| 5157 | "mm4", "mm5", "mm6", "mm7", /* 33 - 36 */ |
| 5158 | "fcw", "fsw", "mxcsr", /* 37 - 39 */ |
| 5159 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, /* 40 - 47 */ |
| 5160 | "tr", "ldtr", /* 48 - 49 */ |
| 5161 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 50 - 57 */ |
| 5162 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 58 - 65 */ |
| 5163 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 66 - 73 */ |
| 5164 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 74 - 81 */ |
| 5165 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 82 - 89 */ |
| 5166 | NULL, NULL, NULL, /* 90 - 92 */ |
| 5167 | "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" /* 93 - 100 */ |
| 5168 | }; |
| 5169 | |
| 5170 | void |
| 5171 | init_dwarf_regnames_i386 (void) |
| 5172 | { |
| 5173 | dwarf_regnames = dwarf_regnames_i386; |
| 5174 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386); |
| 5175 | } |
| 5176 | |
| 5177 | static const char *const dwarf_regnames_x86_64[] = |
| 5178 | { |
| 5179 | "rax", "rdx", "rcx", "rbx", |
| 5180 | "rsi", "rdi", "rbp", "rsp", |
| 5181 | "r8", "r9", "r10", "r11", |
| 5182 | "r12", "r13", "r14", "r15", |
| 5183 | "rip", |
| 5184 | "xmm0", "xmm1", "xmm2", "xmm3", |
| 5185 | "xmm4", "xmm5", "xmm6", "xmm7", |
| 5186 | "xmm8", "xmm9", "xmm10", "xmm11", |
| 5187 | "xmm12", "xmm13", "xmm14", "xmm15", |
| 5188 | "st0", "st1", "st2", "st3", |
| 5189 | "st4", "st5", "st6", "st7", |
| 5190 | "mm0", "mm1", "mm2", "mm3", |
| 5191 | "mm4", "mm5", "mm6", "mm7", |
| 5192 | "rflags", |
| 5193 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, |
| 5194 | "fs.base", "gs.base", NULL, NULL, |
| 5195 | "tr", "ldtr", |
| 5196 | "mxcsr", "fcw", "fsw", |
| 5197 | "xmm16", "xmm17", "xmm18", "xmm19", |
| 5198 | "xmm20", "xmm21", "xmm22", "xmm23", |
| 5199 | "xmm24", "xmm25", "xmm26", "xmm27", |
| 5200 | "xmm28", "xmm29", "xmm30", "xmm31", |
| 5201 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 83 - 90 */ |
| 5202 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 91 - 98 */ |
| 5203 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 99 - 106 */ |
| 5204 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 107 - 114 */ |
| 5205 | NULL, NULL, NULL, /* 115 - 117 */ |
| 5206 | "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" |
| 5207 | }; |
| 5208 | |
| 5209 | void |
| 5210 | init_dwarf_regnames_x86_64 (void) |
| 5211 | { |
| 5212 | dwarf_regnames = dwarf_regnames_x86_64; |
| 5213 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64); |
| 5214 | } |
| 5215 | |
| 5216 | static const char *const dwarf_regnames_aarch64[] = |
| 5217 | { |
| 5218 | "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", |
| 5219 | "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", |
| 5220 | "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", |
| 5221 | "x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp", |
| 5222 | NULL, "elr", NULL, NULL, NULL, NULL, NULL, NULL, |
| 5223 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| 5224 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| 5225 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| 5226 | "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", |
| 5227 | "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", |
| 5228 | "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", |
| 5229 | "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", |
| 5230 | }; |
| 5231 | |
| 5232 | void |
| 5233 | init_dwarf_regnames_aarch64 (void) |
| 5234 | { |
| 5235 | dwarf_regnames = dwarf_regnames_aarch64; |
| 5236 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_aarch64); |
| 5237 | } |
| 5238 | |
| 5239 | void |
| 5240 | init_dwarf_regnames (unsigned int e_machine) |
| 5241 | { |
| 5242 | switch (e_machine) |
| 5243 | { |
| 5244 | case EM_386: |
| 5245 | case EM_486: |
| 5246 | init_dwarf_regnames_i386 (); |
| 5247 | break; |
| 5248 | |
| 5249 | case EM_X86_64: |
| 5250 | case EM_L1OM: |
| 5251 | case EM_K1OM: |
| 5252 | init_dwarf_regnames_x86_64 (); |
| 5253 | break; |
| 5254 | |
| 5255 | case EM_AARCH64: |
| 5256 | init_dwarf_regnames_aarch64 (); |
| 5257 | break; |
| 5258 | |
| 5259 | default: |
| 5260 | break; |
| 5261 | } |
| 5262 | } |
| 5263 | |
| 5264 | static const char * |
| 5265 | regname (unsigned int regno, int row) |
| 5266 | { |
| 5267 | static char reg[64]; |
| 5268 | if (dwarf_regnames |
| 5269 | && regno < dwarf_regnames_count |
| 5270 | && dwarf_regnames [regno] != NULL) |
| 5271 | { |
| 5272 | if (row) |
| 5273 | return dwarf_regnames [regno]; |
| 5274 | snprintf (reg, sizeof (reg), "r%d (%s)", regno, |
| 5275 | dwarf_regnames [regno]); |
| 5276 | } |
| 5277 | else |
| 5278 | snprintf (reg, sizeof (reg), "r%d", regno); |
| 5279 | return reg; |
| 5280 | } |
| 5281 | |
| 5282 | static void |
| 5283 | frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs) |
| 5284 | { |
| 5285 | int r; |
| 5286 | char tmp[100]; |
| 5287 | |
| 5288 | if (*max_regs < fc->ncols) |
| 5289 | *max_regs = fc->ncols; |
| 5290 | |
| 5291 | if (*need_col_headers) |
| 5292 | { |
| 5293 | static const char *sloc = " LOC"; |
| 5294 | |
| 5295 | *need_col_headers = 0; |
| 5296 | |
| 5297 | printf ("%-*s CFA ", eh_addr_size * 2, sloc); |
| 5298 | |
| 5299 | for (r = 0; r < *max_regs; r++) |
| 5300 | if (fc->col_type[r] != DW_CFA_unreferenced) |
| 5301 | { |
| 5302 | if (r == fc->ra) |
| 5303 | printf ("ra "); |
| 5304 | else |
| 5305 | printf ("%-5s ", regname (r, 1)); |
| 5306 | } |
| 5307 | |
| 5308 | printf ("\n"); |
| 5309 | } |
| 5310 | |
| 5311 | print_dwarf_vma (fc->pc_begin, eh_addr_size); |
| 5312 | if (fc->cfa_exp) |
| 5313 | strcpy (tmp, "exp"); |
| 5314 | else |
| 5315 | sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset); |
| 5316 | printf ("%-8s ", tmp); |
| 5317 | |
| 5318 | for (r = 0; r < fc->ncols; r++) |
| 5319 | { |
| 5320 | if (fc->col_type[r] != DW_CFA_unreferenced) |
| 5321 | { |
| 5322 | switch (fc->col_type[r]) |
| 5323 | { |
| 5324 | case DW_CFA_undefined: |
| 5325 | strcpy (tmp, "u"); |
| 5326 | break; |
| 5327 | case DW_CFA_same_value: |
| 5328 | strcpy (tmp, "s"); |
| 5329 | break; |
| 5330 | case DW_CFA_offset: |
| 5331 | sprintf (tmp, "c%+d", fc->col_offset[r]); |
| 5332 | break; |
| 5333 | case DW_CFA_val_offset: |
| 5334 | sprintf (tmp, "v%+d", fc->col_offset[r]); |
| 5335 | break; |
| 5336 | case DW_CFA_register: |
| 5337 | sprintf (tmp, "%s", regname (fc->col_offset[r], 0)); |
| 5338 | break; |
| 5339 | case DW_CFA_expression: |
| 5340 | strcpy (tmp, "exp"); |
| 5341 | break; |
| 5342 | case DW_CFA_val_expression: |
| 5343 | strcpy (tmp, "vexp"); |
| 5344 | break; |
| 5345 | default: |
| 5346 | strcpy (tmp, "n/a"); |
| 5347 | break; |
| 5348 | } |
| 5349 | printf ("%-5s ", tmp); |
| 5350 | } |
| 5351 | } |
| 5352 | printf ("\n"); |
| 5353 | } |
| 5354 | |
| 5355 | #define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end) |
| 5356 | #define LEB() read_uleb128 (start, & length_return, end); start += length_return |
| 5357 | #define SLEB() read_sleb128 (start, & length_return, end); start += length_return |
| 5358 | |
| 5359 | static unsigned char * |
| 5360 | read_cie (unsigned char *start, unsigned char *end, |
| 5361 | Frame_Chunk **p_cie, int *p_version, |
| 5362 | unsigned long *p_aug_len, unsigned char **p_aug) |
| 5363 | { |
| 5364 | int version; |
| 5365 | Frame_Chunk *fc; |
| 5366 | unsigned int length_return; |
| 5367 | unsigned char *augmentation_data = NULL; |
| 5368 | unsigned long augmentation_data_len = 0; |
| 5369 | |
| 5370 | * p_cie = NULL; |
| 5371 | /* PR 17512: file: 001-228113-0.004. */ |
| 5372 | if (start >= end) |
| 5373 | return end; |
| 5374 | |
| 5375 | fc = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk)); |
| 5376 | memset (fc, 0, sizeof (Frame_Chunk)); |
| 5377 | |
| 5378 | fc->col_type = (short int *) xmalloc (sizeof (short int)); |
| 5379 | fc->col_offset = (int *) xmalloc (sizeof (int)); |
| 5380 | |
| 5381 | version = *start++; |
| 5382 | |
| 5383 | fc->augmentation = (char *) start; |
| 5384 | /* PR 17512: file: 001-228113-0.004. |
| 5385 | Skip past augmentation name, but avoid running off the end of the data. */ |
| 5386 | while (start < end) |
| 5387 | if (* start ++ == '\0') |
| 5388 | break; |
| 5389 | if (start == end) |
| 5390 | { |
| 5391 | warn (_("No terminator for augmentation name\n")); |
| 5392 | return start; |
| 5393 | } |
| 5394 | |
| 5395 | if (strcmp (fc->augmentation, "eh") == 0) |
| 5396 | start += eh_addr_size; |
| 5397 | |
| 5398 | if (version >= 4) |
| 5399 | { |
| 5400 | GET (fc->ptr_size, 1); |
| 5401 | GET (fc->segment_size, 1); |
| 5402 | eh_addr_size = fc->ptr_size; |
| 5403 | } |
| 5404 | else |
| 5405 | { |
| 5406 | fc->ptr_size = eh_addr_size; |
| 5407 | fc->segment_size = 0; |
| 5408 | } |
| 5409 | fc->code_factor = LEB (); |
| 5410 | fc->data_factor = SLEB (); |
| 5411 | if (version == 1) |
| 5412 | { |
| 5413 | GET (fc->ra, 1); |
| 5414 | } |
| 5415 | else |
| 5416 | { |
| 5417 | fc->ra = LEB (); |
| 5418 | } |
| 5419 | |
| 5420 | if (fc->augmentation[0] == 'z') |
| 5421 | { |
| 5422 | augmentation_data_len = LEB (); |
| 5423 | augmentation_data = start; |
| 5424 | start += augmentation_data_len; |
| 5425 | } |
| 5426 | |
| 5427 | if (augmentation_data_len) |
| 5428 | { |
| 5429 | unsigned char *p, *q; |
| 5430 | p = (unsigned char *) fc->augmentation + 1; |
| 5431 | q = augmentation_data; |
| 5432 | |
| 5433 | while (1) |
| 5434 | { |
| 5435 | if (*p == 'L') |
| 5436 | q++; |
| 5437 | else if (*p == 'P') |
| 5438 | q += 1 + size_of_encoded_value (*q); |
| 5439 | else if (*p == 'R') |
| 5440 | fc->fde_encoding = *q++; |
| 5441 | else if (*p == 'S') |
| 5442 | ; |
| 5443 | else |
| 5444 | break; |
| 5445 | p++; |
| 5446 | } |
| 5447 | } |
| 5448 | |
| 5449 | *p_cie = fc; |
| 5450 | if (p_version) |
| 5451 | *p_version = version; |
| 5452 | if (p_aug_len) |
| 5453 | { |
| 5454 | *p_aug_len = augmentation_data_len; |
| 5455 | *p_aug = augmentation_data; |
| 5456 | } |
| 5457 | return start; |
| 5458 | } |
| 5459 | |
| 5460 | static int |
| 5461 | display_debug_frames (struct dwarf_section *section, |
| 5462 | void *file ATTRIBUTE_UNUSED) |
| 5463 | { |
| 5464 | unsigned char *start = section->start; |
| 5465 | unsigned char *end = start + section->size; |
| 5466 | unsigned char *section_start = start; |
| 5467 | Frame_Chunk *chunks = 0, *forward_refs = 0; |
| 5468 | Frame_Chunk *remembered_state = 0; |
| 5469 | Frame_Chunk *rs; |
| 5470 | int is_eh = strcmp (section->name, ".eh_frame") == 0; |
| 5471 | unsigned int length_return; |
| 5472 | int max_regs = 0; |
| 5473 | const char *bad_reg = _("bad register: "); |
| 5474 | int saved_eh_addr_size = eh_addr_size; |
| 5475 | |
| 5476 | printf (_("Contents of the %s section:\n"), section->name); |
| 5477 | |
| 5478 | while (start < end) |
| 5479 | { |
| 5480 | unsigned char *saved_start; |
| 5481 | unsigned char *block_end; |
| 5482 | dwarf_vma length; |
| 5483 | dwarf_vma cie_id; |
| 5484 | Frame_Chunk *fc; |
| 5485 | Frame_Chunk *cie; |
| 5486 | int need_col_headers = 1; |
| 5487 | unsigned char *augmentation_data = NULL; |
| 5488 | unsigned long augmentation_data_len = 0; |
| 5489 | unsigned int encoded_ptr_size = saved_eh_addr_size; |
| 5490 | unsigned int offset_size; |
| 5491 | unsigned int initial_length_size; |
| 5492 | |
| 5493 | saved_start = start; |
| 5494 | |
| 5495 | SAFE_BYTE_GET_AND_INC (length, start, 4, end); |
| 5496 | |
| 5497 | if (length == 0) |
| 5498 | { |
| 5499 | printf ("\n%08lx ZERO terminator\n\n", |
| 5500 | (unsigned long)(saved_start - section_start)); |
| 5501 | /* Skip any zero terminators that directly follow. |
| 5502 | A corrupt section size could have loaded a whole |
| 5503 | slew of zero filled memory bytes. eg |
| 5504 | PR 17512: file: 070-19381-0.004. */ |
| 5505 | while (start < end && * start == 0) |
| 5506 | ++ start; |
| 5507 | continue; |
| 5508 | } |
| 5509 | |
| 5510 | if (length == 0xffffffff) |
| 5511 | { |
| 5512 | SAFE_BYTE_GET_AND_INC (length, start, 8, end); |
| 5513 | offset_size = 8; |
| 5514 | initial_length_size = 12; |
| 5515 | } |
| 5516 | else |
| 5517 | { |
| 5518 | offset_size = 4; |
| 5519 | initial_length_size = 4; |
| 5520 | } |
| 5521 | |
| 5522 | block_end = saved_start + length + initial_length_size; |
| 5523 | if (block_end > end || block_end < start) |
| 5524 | { |
| 5525 | warn ("Invalid length 0x%s in FDE at %#08lx\n", |
| 5526 | dwarf_vmatoa_1 (NULL, length, offset_size), |
| 5527 | (unsigned long) (saved_start - section_start)); |
| 5528 | block_end = end; |
| 5529 | } |
| 5530 | |
| 5531 | SAFE_BYTE_GET_AND_INC (cie_id, start, offset_size, end); |
| 5532 | |
| 5533 | if (is_eh ? (cie_id == 0) : ((offset_size == 4 && cie_id == DW_CIE_ID) |
| 5534 | || (offset_size == 8 && cie_id == DW64_CIE_ID))) |
| 5535 | { |
| 5536 | int version; |
| 5537 | int mreg; |
| 5538 | |
| 5539 | start = read_cie (start, end, &cie, &version, |
| 5540 | &augmentation_data_len, &augmentation_data); |
| 5541 | /* PR 17512: file: 027-135133-0.005. */ |
| 5542 | if (cie == NULL) |
| 5543 | break; |
| 5544 | fc = cie; |
| 5545 | fc->next = chunks; |
| 5546 | chunks = fc; |
| 5547 | fc->chunk_start = saved_start; |
| 5548 | mreg = max_regs - 1; |
| 5549 | if (mreg < fc->ra) |
| 5550 | mreg = fc->ra; |
| 5551 | frame_need_space (fc, mreg); |
| 5552 | if (fc->fde_encoding) |
| 5553 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); |
| 5554 | |
| 5555 | printf ("\n%08lx ", (unsigned long) (saved_start - section_start)); |
| 5556 | print_dwarf_vma (length, fc->ptr_size); |
| 5557 | print_dwarf_vma (cie_id, offset_size); |
| 5558 | |
| 5559 | if (do_debug_frames_interp) |
| 5560 | { |
| 5561 | printf ("CIE \"%s\" cf=%d df=%d ra=%d\n", fc->augmentation, |
| 5562 | fc->code_factor, fc->data_factor, fc->ra); |
| 5563 | } |
| 5564 | else |
| 5565 | { |
| 5566 | printf ("CIE\n"); |
| 5567 | printf (" Version: %d\n", version); |
| 5568 | printf (" Augmentation: \"%s\"\n", fc->augmentation); |
| 5569 | if (version >= 4) |
| 5570 | { |
| 5571 | printf (" Pointer Size: %u\n", fc->ptr_size); |
| 5572 | printf (" Segment Size: %u\n", fc->segment_size); |
| 5573 | } |
| 5574 | printf (" Code alignment factor: %u\n", fc->code_factor); |
| 5575 | printf (" Data alignment factor: %d\n", fc->data_factor); |
| 5576 | printf (" Return address column: %d\n", fc->ra); |
| 5577 | |
| 5578 | if (augmentation_data_len) |
| 5579 | { |
| 5580 | unsigned long i; |
| 5581 | printf (" Augmentation data: "); |
| 5582 | for (i = 0; i < augmentation_data_len; ++i) |
| 5583 | printf (" %02x", augmentation_data[i]); |
| 5584 | putchar ('\n'); |
| 5585 | } |
| 5586 | putchar ('\n'); |
| 5587 | } |
| 5588 | } |
| 5589 | else |
| 5590 | { |
| 5591 | unsigned char *look_for; |
| 5592 | static Frame_Chunk fde_fc; |
| 5593 | unsigned long segment_selector; |
| 5594 | |
| 5595 | if (is_eh) |
| 5596 | { |
| 5597 | dwarf_vma sign = (dwarf_vma) 1 << (offset_size * 8 - 1); |
| 5598 | look_for = start - 4 - ((cie_id ^ sign) - sign); |
| 5599 | } |
| 5600 | else |
| 5601 | look_for = section_start + cie_id; |
| 5602 | |
| 5603 | if (look_for <= saved_start) |
| 5604 | { |
| 5605 | for (cie = chunks; cie ; cie = cie->next) |
| 5606 | if (cie->chunk_start == look_for) |
| 5607 | break; |
| 5608 | } |
| 5609 | else |
| 5610 | { |
| 5611 | for (cie = forward_refs; cie ; cie = cie->next) |
| 5612 | if (cie->chunk_start == look_for) |
| 5613 | break; |
| 5614 | if (!cie) |
| 5615 | { |
| 5616 | unsigned int off_size; |
| 5617 | unsigned char *cie_scan; |
| 5618 | |
| 5619 | cie_scan = look_for; |
| 5620 | off_size = 4; |
| 5621 | SAFE_BYTE_GET_AND_INC (length, cie_scan, 4, end); |
| 5622 | if (length == 0xffffffff) |
| 5623 | { |
| 5624 | SAFE_BYTE_GET_AND_INC (length, cie_scan, 8, end); |
| 5625 | off_size = 8; |
| 5626 | } |
| 5627 | if (length != 0) |
| 5628 | { |
| 5629 | dwarf_vma c_id; |
| 5630 | |
| 5631 | SAFE_BYTE_GET_AND_INC (c_id, cie_scan, off_size, end); |
| 5632 | if (is_eh |
| 5633 | ? c_id == 0 |
| 5634 | : ((off_size == 4 && c_id == DW_CIE_ID) |
| 5635 | || (off_size == 8 && c_id == DW64_CIE_ID))) |
| 5636 | { |
| 5637 | int version; |
| 5638 | int mreg; |
| 5639 | |
| 5640 | read_cie (cie_scan, end, &cie, &version, |
| 5641 | &augmentation_data_len, &augmentation_data); |
| 5642 | cie->next = forward_refs; |
| 5643 | forward_refs = cie; |
| 5644 | cie->chunk_start = look_for; |
| 5645 | mreg = max_regs - 1; |
| 5646 | if (mreg < cie->ra) |
| 5647 | mreg = cie->ra; |
| 5648 | frame_need_space (cie, mreg); |
| 5649 | if (cie->fde_encoding) |
| 5650 | encoded_ptr_size |
| 5651 | = size_of_encoded_value (cie->fde_encoding); |
| 5652 | } |
| 5653 | } |
| 5654 | } |
| 5655 | } |
| 5656 | |
| 5657 | fc = &fde_fc; |
| 5658 | memset (fc, 0, sizeof (Frame_Chunk)); |
| 5659 | |
| 5660 | if (!cie) |
| 5661 | { |
| 5662 | warn ("Invalid CIE pointer 0x%s in FDE at %#08lx\n", |
| 5663 | dwarf_vmatoa_1 (NULL, cie_id, offset_size), |
| 5664 | (unsigned long) (saved_start - section_start)); |
| 5665 | fc->ncols = 0; |
| 5666 | fc->col_type = (short int *) xmalloc (sizeof (short int)); |
| 5667 | fc->col_offset = (int *) xmalloc (sizeof (int)); |
| 5668 | frame_need_space (fc, max_regs - 1); |
| 5669 | cie = fc; |
| 5670 | fc->augmentation = ""; |
| 5671 | fc->fde_encoding = 0; |
| 5672 | fc->ptr_size = eh_addr_size; |
| 5673 | fc->segment_size = 0; |
| 5674 | } |
| 5675 | else |
| 5676 | { |
| 5677 | fc->ncols = cie->ncols; |
| 5678 | fc->col_type = (short int *) xcmalloc (fc->ncols, sizeof (short int)); |
| 5679 | fc->col_offset = (int *) xcmalloc (fc->ncols, sizeof (int)); |
| 5680 | memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int)); |
| 5681 | memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int)); |
| 5682 | fc->augmentation = cie->augmentation; |
| 5683 | fc->ptr_size = cie->ptr_size; |
| 5684 | eh_addr_size = cie->ptr_size; |
| 5685 | fc->segment_size = cie->segment_size; |
| 5686 | fc->code_factor = cie->code_factor; |
| 5687 | fc->data_factor = cie->data_factor; |
| 5688 | fc->cfa_reg = cie->cfa_reg; |
| 5689 | fc->cfa_offset = cie->cfa_offset; |
| 5690 | fc->ra = cie->ra; |
| 5691 | frame_need_space (fc, max_regs - 1); |
| 5692 | fc->fde_encoding = cie->fde_encoding; |
| 5693 | } |
| 5694 | |
| 5695 | if (fc->fde_encoding) |
| 5696 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); |
| 5697 | |
| 5698 | segment_selector = 0; |
| 5699 | if (fc->segment_size) |
| 5700 | SAFE_BYTE_GET_AND_INC (segment_selector, start, fc->segment_size, end); |
| 5701 | |
| 5702 | fc->pc_begin = get_encoded_value (&start, fc->fde_encoding, section, end); |
| 5703 | |
| 5704 | /* FIXME: It appears that sometimes the final pc_range value is |
| 5705 | encoded in less than encoded_ptr_size bytes. See the x86_64 |
| 5706 | run of the "objcopy on compressed debug sections" test for an |
| 5707 | example of this. */ |
| 5708 | SAFE_BYTE_GET_AND_INC (fc->pc_range, start, encoded_ptr_size, end); |
| 5709 | |
| 5710 | if (cie->augmentation[0] == 'z') |
| 5711 | { |
| 5712 | augmentation_data_len = LEB (); |
| 5713 | augmentation_data = start; |
| 5714 | start += augmentation_data_len; |
| 5715 | /* PR 17512: file: 722-8446-0.004. */ |
| 5716 | if (start >= end) |
| 5717 | { |
| 5718 | warn (_("Corrupt augmentation data length: %lx\n"), |
| 5719 | augmentation_data_len); |
| 5720 | start = end; |
| 5721 | augmentation_data = NULL; |
| 5722 | augmentation_data_len = 0; |
| 5723 | } |
| 5724 | } |
| 5725 | |
| 5726 | printf ("\n%08lx %s %s FDE cie=%08lx pc=", |
| 5727 | (unsigned long)(saved_start - section_start), |
| 5728 | dwarf_vmatoa_1 (NULL, length, fc->ptr_size), |
| 5729 | dwarf_vmatoa_1 (NULL, cie_id, offset_size), |
| 5730 | (unsigned long)(cie->chunk_start - section_start)); |
| 5731 | |
| 5732 | if (fc->segment_size) |
| 5733 | printf ("%04lx:", segment_selector); |
| 5734 | |
| 5735 | printf ("%s..%s\n", |
| 5736 | dwarf_vmatoa_1 (NULL, fc->pc_begin, fc->ptr_size), |
| 5737 | dwarf_vmatoa_1 (NULL, fc->pc_begin + fc->pc_range, fc->ptr_size)); |
| 5738 | |
| 5739 | if (! do_debug_frames_interp && augmentation_data_len) |
| 5740 | { |
| 5741 | unsigned long i; |
| 5742 | |
| 5743 | printf (" Augmentation data: "); |
| 5744 | for (i = 0; i < augmentation_data_len; ++i) |
| 5745 | printf (" %02x", augmentation_data[i]); |
| 5746 | putchar ('\n'); |
| 5747 | putchar ('\n'); |
| 5748 | } |
| 5749 | } |
| 5750 | |
| 5751 | /* At this point, fc is the current chunk, cie (if any) is set, and |
| 5752 | we're about to interpret instructions for the chunk. */ |
| 5753 | /* ??? At present we need to do this always, since this sizes the |
| 5754 | fc->col_type and fc->col_offset arrays, which we write into always. |
| 5755 | We should probably split the interpreted and non-interpreted bits |
| 5756 | into two different routines, since there's so much that doesn't |
| 5757 | really overlap between them. */ |
| 5758 | if (1 || do_debug_frames_interp) |
| 5759 | { |
| 5760 | /* Start by making a pass over the chunk, allocating storage |
| 5761 | and taking note of what registers are used. */ |
| 5762 | unsigned char *tmp = start; |
| 5763 | |
| 5764 | while (start < block_end) |
| 5765 | { |
| 5766 | unsigned int reg, op, opa; |
| 5767 | unsigned long temp; |
| 5768 | |
| 5769 | op = *start++; |
| 5770 | opa = op & 0x3f; |
| 5771 | if (op & 0xc0) |
| 5772 | op &= 0xc0; |
| 5773 | |
| 5774 | /* Warning: if you add any more cases to this switch, be |
| 5775 | sure to add them to the corresponding switch below. */ |
| 5776 | switch (op) |
| 5777 | { |
| 5778 | case DW_CFA_advance_loc: |
| 5779 | break; |
| 5780 | case DW_CFA_offset: |
| 5781 | LEB (); |
| 5782 | if (frame_need_space (fc, opa) >= 0) |
| 5783 | fc->col_type[opa] = DW_CFA_undefined; |
| 5784 | break; |
| 5785 | case DW_CFA_restore: |
| 5786 | if (frame_need_space (fc, opa) >= 0) |
| 5787 | fc->col_type[opa] = DW_CFA_undefined; |
| 5788 | break; |
| 5789 | case DW_CFA_set_loc: |
| 5790 | start += encoded_ptr_size; |
| 5791 | break; |
| 5792 | case DW_CFA_advance_loc1: |
| 5793 | start += 1; |
| 5794 | break; |
| 5795 | case DW_CFA_advance_loc2: |
| 5796 | start += 2; |
| 5797 | break; |
| 5798 | case DW_CFA_advance_loc4: |
| 5799 | start += 4; |
| 5800 | break; |
| 5801 | case DW_CFA_offset_extended: |
| 5802 | case DW_CFA_val_offset: |
| 5803 | reg = LEB (); LEB (); |
| 5804 | if (frame_need_space (fc, reg) >= 0) |
| 5805 | fc->col_type[reg] = DW_CFA_undefined; |
| 5806 | break; |
| 5807 | case DW_CFA_restore_extended: |
| 5808 | reg = LEB (); |
| 5809 | frame_need_space (fc, reg); |
| 5810 | if (frame_need_space (fc, reg) >= 0) |
| 5811 | fc->col_type[reg] = DW_CFA_undefined; |
| 5812 | break; |
| 5813 | case DW_CFA_undefined: |
| 5814 | reg = LEB (); |
| 5815 | if (frame_need_space (fc, reg) >= 0) |
| 5816 | fc->col_type[reg] = DW_CFA_undefined; |
| 5817 | break; |
| 5818 | case DW_CFA_same_value: |
| 5819 | reg = LEB (); |
| 5820 | if (frame_need_space (fc, reg) >= 0) |
| 5821 | fc->col_type[reg] = DW_CFA_undefined; |
| 5822 | break; |
| 5823 | case DW_CFA_register: |
| 5824 | reg = LEB (); LEB (); |
| 5825 | if (frame_need_space (fc, reg) >= 0) |
| 5826 | fc->col_type[reg] = DW_CFA_undefined; |
| 5827 | break; |
| 5828 | case DW_CFA_def_cfa: |
| 5829 | LEB (); LEB (); |
| 5830 | break; |
| 5831 | case DW_CFA_def_cfa_register: |
| 5832 | LEB (); |
| 5833 | break; |
| 5834 | case DW_CFA_def_cfa_offset: |
| 5835 | LEB (); |
| 5836 | break; |
| 5837 | case DW_CFA_def_cfa_expression: |
| 5838 | temp = LEB (); |
| 5839 | if (start + temp < start) |
| 5840 | { |
| 5841 | warn (_("Corrupt CFA_def expression value: %lu\n"), temp); |
| 5842 | start = block_end; |
| 5843 | } |
| 5844 | else |
| 5845 | start += temp; |
| 5846 | break; |
| 5847 | case DW_CFA_expression: |
| 5848 | case DW_CFA_val_expression: |
| 5849 | reg = LEB (); |
| 5850 | temp = LEB (); |
| 5851 | if (start + temp < start) |
| 5852 | { |
| 5853 | /* PR 17512: file:306-192417-0.005. */ |
| 5854 | warn (_("Corrupt CFA expression value: %lu\n"), temp); |
| 5855 | start = block_end; |
| 5856 | } |
| 5857 | else |
| 5858 | start += temp; |
| 5859 | if (frame_need_space (fc, reg) >= 0) |
| 5860 | fc->col_type[reg] = DW_CFA_undefined; |
| 5861 | break; |
| 5862 | case DW_CFA_offset_extended_sf: |
| 5863 | case DW_CFA_val_offset_sf: |
| 5864 | reg = LEB (); SLEB (); |
| 5865 | if (frame_need_space (fc, reg) >= 0) |
| 5866 | fc->col_type[reg] = DW_CFA_undefined; |
| 5867 | break; |
| 5868 | case DW_CFA_def_cfa_sf: |
| 5869 | LEB (); SLEB (); |
| 5870 | break; |
| 5871 | case DW_CFA_def_cfa_offset_sf: |
| 5872 | SLEB (); |
| 5873 | break; |
| 5874 | case DW_CFA_MIPS_advance_loc8: |
| 5875 | start += 8; |
| 5876 | break; |
| 5877 | case DW_CFA_GNU_args_size: |
| 5878 | LEB (); |
| 5879 | break; |
| 5880 | case DW_CFA_GNU_negative_offset_extended: |
| 5881 | reg = LEB (); LEB (); |
| 5882 | if (frame_need_space (fc, reg) >= 0) |
| 5883 | fc->col_type[reg] = DW_CFA_undefined; |
| 5884 | break; |
| 5885 | default: |
| 5886 | break; |
| 5887 | } |
| 5888 | } |
| 5889 | start = tmp; |
| 5890 | } |
| 5891 | |
| 5892 | /* Now we know what registers are used, make a second pass over |
| 5893 | the chunk, this time actually printing out the info. */ |
| 5894 | |
| 5895 | while (start < block_end) |
| 5896 | { |
| 5897 | unsigned op, opa; |
| 5898 | unsigned long ul, reg, roffs; |
| 5899 | long l; |
| 5900 | dwarf_vma ofs; |
| 5901 | dwarf_vma vma; |
| 5902 | const char *reg_prefix = ""; |
| 5903 | |
| 5904 | op = *start++; |
| 5905 | opa = op & 0x3f; |
| 5906 | if (op & 0xc0) |
| 5907 | op &= 0xc0; |
| 5908 | |
| 5909 | /* Warning: if you add any more cases to this switch, be |
| 5910 | sure to add them to the corresponding switch above. */ |
| 5911 | switch (op) |
| 5912 | { |
| 5913 | case DW_CFA_advance_loc: |
| 5914 | if (do_debug_frames_interp) |
| 5915 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5916 | else |
| 5917 | printf (" DW_CFA_advance_loc: %d to %s\n", |
| 5918 | opa * fc->code_factor, |
| 5919 | dwarf_vmatoa_1 (NULL, |
| 5920 | fc->pc_begin + opa * fc->code_factor, |
| 5921 | fc->ptr_size)); |
| 5922 | fc->pc_begin += opa * fc->code_factor; |
| 5923 | break; |
| 5924 | |
| 5925 | case DW_CFA_offset: |
| 5926 | roffs = LEB (); |
| 5927 | if (opa >= (unsigned int) fc->ncols) |
| 5928 | reg_prefix = bad_reg; |
| 5929 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5930 | printf (" DW_CFA_offset: %s%s at cfa%+ld\n", |
| 5931 | reg_prefix, regname (opa, 0), |
| 5932 | roffs * fc->data_factor); |
| 5933 | if (*reg_prefix == '\0') |
| 5934 | { |
| 5935 | fc->col_type[opa] = DW_CFA_offset; |
| 5936 | fc->col_offset[opa] = roffs * fc->data_factor; |
| 5937 | } |
| 5938 | break; |
| 5939 | |
| 5940 | case DW_CFA_restore: |
| 5941 | if (opa >= (unsigned int) cie->ncols |
| 5942 | || opa >= (unsigned int) fc->ncols) |
| 5943 | reg_prefix = bad_reg; |
| 5944 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 5945 | printf (" DW_CFA_restore: %s%s\n", |
| 5946 | reg_prefix, regname (opa, 0)); |
| 5947 | if (*reg_prefix == '\0') |
| 5948 | { |
| 5949 | fc->col_type[opa] = cie->col_type[opa]; |
| 5950 | fc->col_offset[opa] = cie->col_offset[opa]; |
| 5951 | if (do_debug_frames_interp |
| 5952 | && fc->col_type[opa] == DW_CFA_unreferenced) |
| 5953 | fc->col_type[opa] = DW_CFA_undefined; |
| 5954 | } |
| 5955 | break; |
| 5956 | |
| 5957 | case DW_CFA_set_loc: |
| 5958 | vma = get_encoded_value (&start, fc->fde_encoding, section, block_end); |
| 5959 | if (do_debug_frames_interp) |
| 5960 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5961 | else |
| 5962 | printf (" DW_CFA_set_loc: %s\n", |
| 5963 | dwarf_vmatoa_1 (NULL, vma, fc->ptr_size)); |
| 5964 | fc->pc_begin = vma; |
| 5965 | break; |
| 5966 | |
| 5967 | case DW_CFA_advance_loc1: |
| 5968 | SAFE_BYTE_GET_AND_INC (ofs, start, 1, end); |
| 5969 | if (do_debug_frames_interp) |
| 5970 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5971 | else |
| 5972 | printf (" DW_CFA_advance_loc1: %ld to %s\n", |
| 5973 | (unsigned long) (ofs * fc->code_factor), |
| 5974 | dwarf_vmatoa_1 (NULL, |
| 5975 | fc->pc_begin + ofs * fc->code_factor, |
| 5976 | fc->ptr_size)); |
| 5977 | fc->pc_begin += ofs * fc->code_factor; |
| 5978 | break; |
| 5979 | |
| 5980 | case DW_CFA_advance_loc2: |
| 5981 | SAFE_BYTE_GET_AND_INC (ofs, start, 2, block_end); |
| 5982 | if (do_debug_frames_interp) |
| 5983 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5984 | else |
| 5985 | printf (" DW_CFA_advance_loc2: %ld to %s\n", |
| 5986 | (unsigned long) (ofs * fc->code_factor), |
| 5987 | dwarf_vmatoa_1 (NULL, |
| 5988 | fc->pc_begin + ofs * fc->code_factor, |
| 5989 | fc->ptr_size)); |
| 5990 | fc->pc_begin += ofs * fc->code_factor; |
| 5991 | break; |
| 5992 | |
| 5993 | case DW_CFA_advance_loc4: |
| 5994 | SAFE_BYTE_GET_AND_INC (ofs, start, 4, block_end); |
| 5995 | if (do_debug_frames_interp) |
| 5996 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 5997 | else |
| 5998 | printf (" DW_CFA_advance_loc4: %ld to %s\n", |
| 5999 | (unsigned long) (ofs * fc->code_factor), |
| 6000 | dwarf_vmatoa_1 (NULL, |
| 6001 | fc->pc_begin + ofs * fc->code_factor, |
| 6002 | fc->ptr_size)); |
| 6003 | fc->pc_begin += ofs * fc->code_factor; |
| 6004 | break; |
| 6005 | |
| 6006 | case DW_CFA_offset_extended: |
| 6007 | reg = LEB (); |
| 6008 | roffs = LEB (); |
| 6009 | if (reg >= (unsigned int) fc->ncols) |
| 6010 | reg_prefix = bad_reg; |
| 6011 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6012 | printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n", |
| 6013 | reg_prefix, regname (reg, 0), |
| 6014 | roffs * fc->data_factor); |
| 6015 | if (*reg_prefix == '\0') |
| 6016 | { |
| 6017 | fc->col_type[reg] = DW_CFA_offset; |
| 6018 | fc->col_offset[reg] = roffs * fc->data_factor; |
| 6019 | } |
| 6020 | break; |
| 6021 | |
| 6022 | case DW_CFA_val_offset: |
| 6023 | reg = LEB (); |
| 6024 | roffs = LEB (); |
| 6025 | if (reg >= (unsigned int) fc->ncols) |
| 6026 | reg_prefix = bad_reg; |
| 6027 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6028 | printf (" DW_CFA_val_offset: %s%s at cfa%+ld\n", |
| 6029 | reg_prefix, regname (reg, 0), |
| 6030 | roffs * fc->data_factor); |
| 6031 | if (*reg_prefix == '\0') |
| 6032 | { |
| 6033 | fc->col_type[reg] = DW_CFA_val_offset; |
| 6034 | fc->col_offset[reg] = roffs * fc->data_factor; |
| 6035 | } |
| 6036 | break; |
| 6037 | |
| 6038 | case DW_CFA_restore_extended: |
| 6039 | reg = LEB (); |
| 6040 | if (reg >= (unsigned int) cie->ncols |
| 6041 | || reg >= (unsigned int) fc->ncols) |
| 6042 | reg_prefix = bad_reg; |
| 6043 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6044 | printf (" DW_CFA_restore_extended: %s%s\n", |
| 6045 | reg_prefix, regname (reg, 0)); |
| 6046 | if (*reg_prefix == '\0') |
| 6047 | { |
| 6048 | fc->col_type[reg] = cie->col_type[reg]; |
| 6049 | fc->col_offset[reg] = cie->col_offset[reg]; |
| 6050 | } |
| 6051 | break; |
| 6052 | |
| 6053 | case DW_CFA_undefined: |
| 6054 | reg = LEB (); |
| 6055 | if (reg >= (unsigned int) fc->ncols) |
| 6056 | reg_prefix = bad_reg; |
| 6057 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6058 | printf (" DW_CFA_undefined: %s%s\n", |
| 6059 | reg_prefix, regname (reg, 0)); |
| 6060 | if (*reg_prefix == '\0') |
| 6061 | { |
| 6062 | fc->col_type[reg] = DW_CFA_undefined; |
| 6063 | fc->col_offset[reg] = 0; |
| 6064 | } |
| 6065 | break; |
| 6066 | |
| 6067 | case DW_CFA_same_value: |
| 6068 | reg = LEB (); |
| 6069 | if (reg >= (unsigned int) fc->ncols) |
| 6070 | reg_prefix = bad_reg; |
| 6071 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6072 | printf (" DW_CFA_same_value: %s%s\n", |
| 6073 | reg_prefix, regname (reg, 0)); |
| 6074 | if (*reg_prefix == '\0') |
| 6075 | { |
| 6076 | fc->col_type[reg] = DW_CFA_same_value; |
| 6077 | fc->col_offset[reg] = 0; |
| 6078 | } |
| 6079 | break; |
| 6080 | |
| 6081 | case DW_CFA_register: |
| 6082 | reg = LEB (); |
| 6083 | roffs = LEB (); |
| 6084 | if (reg >= (unsigned int) fc->ncols) |
| 6085 | reg_prefix = bad_reg; |
| 6086 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6087 | { |
| 6088 | printf (" DW_CFA_register: %s%s in ", |
| 6089 | reg_prefix, regname (reg, 0)); |
| 6090 | puts (regname (roffs, 0)); |
| 6091 | } |
| 6092 | if (*reg_prefix == '\0') |
| 6093 | { |
| 6094 | fc->col_type[reg] = DW_CFA_register; |
| 6095 | fc->col_offset[reg] = roffs; |
| 6096 | } |
| 6097 | break; |
| 6098 | |
| 6099 | case DW_CFA_remember_state: |
| 6100 | if (! do_debug_frames_interp) |
| 6101 | printf (" DW_CFA_remember_state\n"); |
| 6102 | rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk)); |
| 6103 | rs->cfa_offset = fc->cfa_offset; |
| 6104 | rs->cfa_reg = fc->cfa_reg; |
| 6105 | rs->ra = fc->ra; |
| 6106 | rs->cfa_exp = fc->cfa_exp; |
| 6107 | rs->ncols = fc->ncols; |
| 6108 | rs->col_type = (short int *) xcmalloc (rs->ncols, |
| 6109 | sizeof (* rs->col_type)); |
| 6110 | rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (* rs->col_offset)); |
| 6111 | memcpy (rs->col_type, fc->col_type, rs->ncols * sizeof (* fc->col_type)); |
| 6112 | memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (* fc->col_offset)); |
| 6113 | rs->next = remembered_state; |
| 6114 | remembered_state = rs; |
| 6115 | break; |
| 6116 | |
| 6117 | case DW_CFA_restore_state: |
| 6118 | if (! do_debug_frames_interp) |
| 6119 | printf (" DW_CFA_restore_state\n"); |
| 6120 | rs = remembered_state; |
| 6121 | if (rs) |
| 6122 | { |
| 6123 | remembered_state = rs->next; |
| 6124 | fc->cfa_offset = rs->cfa_offset; |
| 6125 | fc->cfa_reg = rs->cfa_reg; |
| 6126 | fc->ra = rs->ra; |
| 6127 | fc->cfa_exp = rs->cfa_exp; |
| 6128 | frame_need_space (fc, rs->ncols - 1); |
| 6129 | memcpy (fc->col_type, rs->col_type, rs->ncols * sizeof (* rs->col_type)); |
| 6130 | memcpy (fc->col_offset, rs->col_offset, |
| 6131 | rs->ncols * sizeof (* rs->col_offset)); |
| 6132 | free (rs->col_type); |
| 6133 | free (rs->col_offset); |
| 6134 | free (rs); |
| 6135 | } |
| 6136 | else if (do_debug_frames_interp) |
| 6137 | printf ("Mismatched DW_CFA_restore_state\n"); |
| 6138 | break; |
| 6139 | |
| 6140 | case DW_CFA_def_cfa: |
| 6141 | fc->cfa_reg = LEB (); |
| 6142 | fc->cfa_offset = LEB (); |
| 6143 | fc->cfa_exp = 0; |
| 6144 | if (! do_debug_frames_interp) |
| 6145 | printf (" DW_CFA_def_cfa: %s ofs %d\n", |
| 6146 | regname (fc->cfa_reg, 0), fc->cfa_offset); |
| 6147 | break; |
| 6148 | |
| 6149 | case DW_CFA_def_cfa_register: |
| 6150 | fc->cfa_reg = LEB (); |
| 6151 | fc->cfa_exp = 0; |
| 6152 | if (! do_debug_frames_interp) |
| 6153 | printf (" DW_CFA_def_cfa_register: %s\n", |
| 6154 | regname (fc->cfa_reg, 0)); |
| 6155 | break; |
| 6156 | |
| 6157 | case DW_CFA_def_cfa_offset: |
| 6158 | fc->cfa_offset = LEB (); |
| 6159 | if (! do_debug_frames_interp) |
| 6160 | printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset); |
| 6161 | break; |
| 6162 | |
| 6163 | case DW_CFA_nop: |
| 6164 | if (! do_debug_frames_interp) |
| 6165 | printf (" DW_CFA_nop\n"); |
| 6166 | break; |
| 6167 | |
| 6168 | case DW_CFA_def_cfa_expression: |
| 6169 | ul = LEB (); |
| 6170 | if (start >= block_end) |
| 6171 | { |
| 6172 | printf (" DW_CFA_def_cfa_expression: <corrupt>\n"); |
| 6173 | warn (_("Corrupt length field in DW_CFA_def_cfa_expression\n")); |
| 6174 | break; |
| 6175 | } |
| 6176 | if (! do_debug_frames_interp) |
| 6177 | { |
| 6178 | printf (" DW_CFA_def_cfa_expression ("); |
| 6179 | decode_location_expression (start, eh_addr_size, 0, -1, |
| 6180 | ul, 0, section); |
| 6181 | printf (")\n"); |
| 6182 | } |
| 6183 | fc->cfa_exp = 1; |
| 6184 | start += ul; |
| 6185 | break; |
| 6186 | |
| 6187 | case DW_CFA_expression: |
| 6188 | reg = LEB (); |
| 6189 | ul = LEB (); |
| 6190 | if (reg >= (unsigned int) fc->ncols) |
| 6191 | reg_prefix = bad_reg; |
| 6192 | /* PR 17512: file: 069-133014-0.006. */ |
| 6193 | if (start >= block_end) |
| 6194 | { |
| 6195 | printf (" DW_CFA_expression: <corrupt>\n"); |
| 6196 | warn (_("Corrupt length field in DW_CFA_expression\n")); |
| 6197 | break; |
| 6198 | } |
| 6199 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6200 | { |
| 6201 | printf (" DW_CFA_expression: %s%s (", |
| 6202 | reg_prefix, regname (reg, 0)); |
| 6203 | decode_location_expression (start, eh_addr_size, 0, -1, |
| 6204 | ul, 0, section); |
| 6205 | printf (")\n"); |
| 6206 | } |
| 6207 | if (*reg_prefix == '\0') |
| 6208 | fc->col_type[reg] = DW_CFA_expression; |
| 6209 | start += ul; |
| 6210 | break; |
| 6211 | |
| 6212 | case DW_CFA_val_expression: |
| 6213 | reg = LEB (); |
| 6214 | ul = LEB (); |
| 6215 | if (reg >= (unsigned int) fc->ncols) |
| 6216 | reg_prefix = bad_reg; |
| 6217 | if (start >= block_end) |
| 6218 | { |
| 6219 | printf (" DW_CFA_val_expression: <corrupt>\n"); |
| 6220 | warn (_("Corrupt length field in DW_CFA_val_expression\n")); |
| 6221 | break; |
| 6222 | } |
| 6223 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6224 | { |
| 6225 | printf (" DW_CFA_val_expression: %s%s (", |
| 6226 | reg_prefix, regname (reg, 0)); |
| 6227 | decode_location_expression (start, eh_addr_size, 0, -1, |
| 6228 | ul, 0, section); |
| 6229 | printf (")\n"); |
| 6230 | } |
| 6231 | if (*reg_prefix == '\0') |
| 6232 | fc->col_type[reg] = DW_CFA_val_expression; |
| 6233 | start += ul; |
| 6234 | break; |
| 6235 | |
| 6236 | case DW_CFA_offset_extended_sf: |
| 6237 | reg = LEB (); |
| 6238 | l = SLEB (); |
| 6239 | if (frame_need_space (fc, reg) < 0) |
| 6240 | reg_prefix = bad_reg; |
| 6241 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6242 | printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n", |
| 6243 | reg_prefix, regname (reg, 0), |
| 6244 | l * fc->data_factor); |
| 6245 | if (*reg_prefix == '\0') |
| 6246 | { |
| 6247 | fc->col_type[reg] = DW_CFA_offset; |
| 6248 | fc->col_offset[reg] = l * fc->data_factor; |
| 6249 | } |
| 6250 | break; |
| 6251 | |
| 6252 | case DW_CFA_val_offset_sf: |
| 6253 | reg = LEB (); |
| 6254 | l = SLEB (); |
| 6255 | if (frame_need_space (fc, reg) < 0) |
| 6256 | reg_prefix = bad_reg; |
| 6257 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6258 | printf (" DW_CFA_val_offset_sf: %s%s at cfa%+ld\n", |
| 6259 | reg_prefix, regname (reg, 0), |
| 6260 | l * fc->data_factor); |
| 6261 | if (*reg_prefix == '\0') |
| 6262 | { |
| 6263 | fc->col_type[reg] = DW_CFA_val_offset; |
| 6264 | fc->col_offset[reg] = l * fc->data_factor; |
| 6265 | } |
| 6266 | break; |
| 6267 | |
| 6268 | case DW_CFA_def_cfa_sf: |
| 6269 | fc->cfa_reg = LEB (); |
| 6270 | fc->cfa_offset = SLEB (); |
| 6271 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; |
| 6272 | fc->cfa_exp = 0; |
| 6273 | if (! do_debug_frames_interp) |
| 6274 | printf (" DW_CFA_def_cfa_sf: %s ofs %d\n", |
| 6275 | regname (fc->cfa_reg, 0), fc->cfa_offset); |
| 6276 | break; |
| 6277 | |
| 6278 | case DW_CFA_def_cfa_offset_sf: |
| 6279 | fc->cfa_offset = SLEB (); |
| 6280 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; |
| 6281 | if (! do_debug_frames_interp) |
| 6282 | printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset); |
| 6283 | break; |
| 6284 | |
| 6285 | case DW_CFA_MIPS_advance_loc8: |
| 6286 | SAFE_BYTE_GET_AND_INC (ofs, start, 8, block_end); |
| 6287 | if (do_debug_frames_interp) |
| 6288 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 6289 | else |
| 6290 | printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n", |
| 6291 | (unsigned long) (ofs * fc->code_factor), |
| 6292 | dwarf_vmatoa_1 (NULL, |
| 6293 | fc->pc_begin + ofs * fc->code_factor, |
| 6294 | fc->ptr_size)); |
| 6295 | fc->pc_begin += ofs * fc->code_factor; |
| 6296 | break; |
| 6297 | |
| 6298 | case DW_CFA_GNU_window_save: |
| 6299 | if (! do_debug_frames_interp) |
| 6300 | printf (" DW_CFA_GNU_window_save\n"); |
| 6301 | break; |
| 6302 | |
| 6303 | case DW_CFA_GNU_args_size: |
| 6304 | ul = LEB (); |
| 6305 | if (! do_debug_frames_interp) |
| 6306 | printf (" DW_CFA_GNU_args_size: %ld\n", ul); |
| 6307 | break; |
| 6308 | |
| 6309 | case DW_CFA_GNU_negative_offset_extended: |
| 6310 | reg = LEB (); |
| 6311 | l = - LEB (); |
| 6312 | if (frame_need_space (fc, reg) < 0) |
| 6313 | reg_prefix = bad_reg; |
| 6314 | if (! do_debug_frames_interp || *reg_prefix != '\0') |
| 6315 | printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n", |
| 6316 | reg_prefix, regname (reg, 0), |
| 6317 | l * fc->data_factor); |
| 6318 | if (*reg_prefix == '\0') |
| 6319 | { |
| 6320 | fc->col_type[reg] = DW_CFA_offset; |
| 6321 | fc->col_offset[reg] = l * fc->data_factor; |
| 6322 | } |
| 6323 | break; |
| 6324 | |
| 6325 | default: |
| 6326 | if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user) |
| 6327 | printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op); |
| 6328 | else |
| 6329 | warn (_("Unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op); |
| 6330 | start = block_end; |
| 6331 | } |
| 6332 | } |
| 6333 | |
| 6334 | if (do_debug_frames_interp) |
| 6335 | frame_display_row (fc, &need_col_headers, &max_regs); |
| 6336 | |
| 6337 | start = block_end; |
| 6338 | eh_addr_size = saved_eh_addr_size; |
| 6339 | } |
| 6340 | |
| 6341 | printf ("\n"); |
| 6342 | |
| 6343 | return 1; |
| 6344 | } |
| 6345 | |
| 6346 | #undef GET |
| 6347 | #undef LEB |
| 6348 | #undef SLEB |
| 6349 | |
| 6350 | static int |
| 6351 | display_gdb_index (struct dwarf_section *section, |
| 6352 | void *file ATTRIBUTE_UNUSED) |
| 6353 | { |
| 6354 | unsigned char *start = section->start; |
| 6355 | uint32_t version; |
| 6356 | uint32_t cu_list_offset, tu_list_offset; |
| 6357 | uint32_t address_table_offset, symbol_table_offset, constant_pool_offset; |
| 6358 | unsigned int cu_list_elements, tu_list_elements; |
| 6359 | unsigned int address_table_size, symbol_table_slots; |
| 6360 | unsigned char *cu_list, *tu_list; |
| 6361 | unsigned char *address_table, *symbol_table, *constant_pool; |
| 6362 | unsigned int i; |
| 6363 | |
| 6364 | /* The documentation for the format of this file is in gdb/dwarf2read.c. */ |
| 6365 | |
| 6366 | printf (_("Contents of the %s section:\n"), section->name); |
| 6367 | |
| 6368 | if (section->size < 6 * sizeof (uint32_t)) |
| 6369 | { |
| 6370 | warn (_("Truncated header in the %s section.\n"), section->name); |
| 6371 | return 0; |
| 6372 | } |
| 6373 | |
| 6374 | version = byte_get_little_endian (start, 4); |
| 6375 | printf (_("Version %ld\n"), (long) version); |
| 6376 | |
| 6377 | /* Prior versions are obsolete, and future versions may not be |
| 6378 | backwards compatible. */ |
| 6379 | if (version < 3 || version > 8) |
| 6380 | { |
| 6381 | warn (_("Unsupported version %lu.\n"), (unsigned long) version); |
| 6382 | return 0; |
| 6383 | } |
| 6384 | if (version < 4) |
| 6385 | warn (_("The address table data in version 3 may be wrong.\n")); |
| 6386 | if (version < 5) |
| 6387 | warn (_("Version 4 does not support case insensitive lookups.\n")); |
| 6388 | if (version < 6) |
| 6389 | warn (_("Version 5 does not include inlined functions.\n")); |
| 6390 | if (version < 7) |
| 6391 | warn (_("Version 6 does not include symbol attributes.\n")); |
| 6392 | /* Version 7 indices generated by Gold have bad type unit references, |
| 6393 | PR binutils/15021. But we don't know if the index was generated by |
| 6394 | Gold or not, so to avoid worrying users with gdb-generated indices |
| 6395 | we say nothing for version 7 here. */ |
| 6396 | |
| 6397 | cu_list_offset = byte_get_little_endian (start + 4, 4); |
| 6398 | tu_list_offset = byte_get_little_endian (start + 8, 4); |
| 6399 | address_table_offset = byte_get_little_endian (start + 12, 4); |
| 6400 | symbol_table_offset = byte_get_little_endian (start + 16, 4); |
| 6401 | constant_pool_offset = byte_get_little_endian (start + 20, 4); |
| 6402 | |
| 6403 | if (cu_list_offset > section->size |
| 6404 | || tu_list_offset > section->size |
| 6405 | || address_table_offset > section->size |
| 6406 | || symbol_table_offset > section->size |
| 6407 | || constant_pool_offset > section->size) |
| 6408 | { |
| 6409 | warn (_("Corrupt header in the %s section.\n"), section->name); |
| 6410 | return 0; |
| 6411 | } |
| 6412 | |
| 6413 | cu_list_elements = (tu_list_offset - cu_list_offset) / 8; |
| 6414 | tu_list_elements = (address_table_offset - tu_list_offset) / 8; |
| 6415 | address_table_size = symbol_table_offset - address_table_offset; |
| 6416 | symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8; |
| 6417 | |
| 6418 | cu_list = start + cu_list_offset; |
| 6419 | tu_list = start + tu_list_offset; |
| 6420 | address_table = start + address_table_offset; |
| 6421 | symbol_table = start + symbol_table_offset; |
| 6422 | constant_pool = start + constant_pool_offset; |
| 6423 | |
| 6424 | printf (_("\nCU table:\n")); |
| 6425 | for (i = 0; i < cu_list_elements; i += 2) |
| 6426 | { |
| 6427 | uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8); |
| 6428 | uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8); |
| 6429 | |
| 6430 | printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2, |
| 6431 | (unsigned long) cu_offset, |
| 6432 | (unsigned long) (cu_offset + cu_length - 1)); |
| 6433 | } |
| 6434 | |
| 6435 | printf (_("\nTU table:\n")); |
| 6436 | for (i = 0; i < tu_list_elements; i += 3) |
| 6437 | { |
| 6438 | uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8); |
| 6439 | uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8); |
| 6440 | uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8); |
| 6441 | |
| 6442 | printf (_("[%3u] 0x%lx 0x%lx "), i / 3, |
| 6443 | (unsigned long) tu_offset, |
| 6444 | (unsigned long) type_offset); |
| 6445 | print_dwarf_vma (signature, 8); |
| 6446 | printf ("\n"); |
| 6447 | } |
| 6448 | |
| 6449 | printf (_("\nAddress table:\n")); |
| 6450 | for (i = 0; i < address_table_size; i += 2 * 8 + 4) |
| 6451 | { |
| 6452 | uint64_t low = byte_get_little_endian (address_table + i, 8); |
| 6453 | uint64_t high = byte_get_little_endian (address_table + i + 8, 8); |
| 6454 | uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4); |
| 6455 | |
| 6456 | print_dwarf_vma (low, 8); |
| 6457 | print_dwarf_vma (high, 8); |
| 6458 | printf (_("%lu\n"), (unsigned long) cu_index); |
| 6459 | } |
| 6460 | |
| 6461 | printf (_("\nSymbol table:\n")); |
| 6462 | for (i = 0; i < symbol_table_slots; ++i) |
| 6463 | { |
| 6464 | uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4); |
| 6465 | uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4); |
| 6466 | uint32_t num_cus, cu; |
| 6467 | |
| 6468 | if (name_offset != 0 |
| 6469 | || cu_vector_offset != 0) |
| 6470 | { |
| 6471 | unsigned int j; |
| 6472 | |
| 6473 | printf ("[%3u] %s:", i, constant_pool + name_offset); |
| 6474 | num_cus = byte_get_little_endian (constant_pool + cu_vector_offset, 4); |
| 6475 | if (num_cus > 1) |
| 6476 | printf ("\n"); |
| 6477 | for (j = 0; j < num_cus; ++j) |
| 6478 | { |
| 6479 | int is_static; |
| 6480 | gdb_index_symbol_kind kind; |
| 6481 | |
| 6482 | cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4); |
| 6483 | is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (cu); |
| 6484 | kind = GDB_INDEX_SYMBOL_KIND_VALUE (cu); |
| 6485 | cu = GDB_INDEX_CU_VALUE (cu); |
| 6486 | /* Convert to TU number if it's for a type unit. */ |
| 6487 | if (cu >= cu_list_elements / 2) |
| 6488 | printf ("%cT%lu", num_cus > 1 ? '\t' : ' ', |
| 6489 | (unsigned long) (cu - cu_list_elements / 2)); |
| 6490 | else |
| 6491 | printf ("%c%lu", num_cus > 1 ? '\t' : ' ', (unsigned long) cu); |
| 6492 | |
| 6493 | printf (" [%s, %s]", |
| 6494 | is_static ? _("static") : _("global"), |
| 6495 | get_gdb_index_symbol_kind_name (kind)); |
| 6496 | if (num_cus > 1) |
| 6497 | printf ("\n"); |
| 6498 | } |
| 6499 | if (num_cus <= 1) |
| 6500 | printf ("\n"); |
| 6501 | } |
| 6502 | } |
| 6503 | |
| 6504 | return 1; |
| 6505 | } |
| 6506 | |
| 6507 | /* Pre-allocate enough space for the CU/TU sets needed. */ |
| 6508 | |
| 6509 | static void |
| 6510 | prealloc_cu_tu_list (unsigned int nshndx) |
| 6511 | { |
| 6512 | if (shndx_pool == NULL) |
| 6513 | { |
| 6514 | shndx_pool_size = nshndx; |
| 6515 | shndx_pool_used = 0; |
| 6516 | shndx_pool = (unsigned int *) xcmalloc (shndx_pool_size, |
| 6517 | sizeof (unsigned int)); |
| 6518 | } |
| 6519 | else |
| 6520 | { |
| 6521 | shndx_pool_size = shndx_pool_used + nshndx; |
| 6522 | shndx_pool = (unsigned int *) xcrealloc (shndx_pool, shndx_pool_size, |
| 6523 | sizeof (unsigned int)); |
| 6524 | } |
| 6525 | } |
| 6526 | |
| 6527 | static void |
| 6528 | add_shndx_to_cu_tu_entry (unsigned int shndx) |
| 6529 | { |
| 6530 | if (shndx_pool_used >= shndx_pool_size) |
| 6531 | { |
| 6532 | error (_("Internal error: out of space in the shndx pool.\n")); |
| 6533 | return; |
| 6534 | } |
| 6535 | shndx_pool [shndx_pool_used++] = shndx; |
| 6536 | } |
| 6537 | |
| 6538 | static void |
| 6539 | end_cu_tu_entry (void) |
| 6540 | { |
| 6541 | if (shndx_pool_used >= shndx_pool_size) |
| 6542 | { |
| 6543 | error (_("Internal error: out of space in the shndx pool.\n")); |
| 6544 | return; |
| 6545 | } |
| 6546 | shndx_pool [shndx_pool_used++] = 0; |
| 6547 | } |
| 6548 | |
| 6549 | /* Return the short name of a DWARF section given by a DW_SECT enumerator. */ |
| 6550 | |
| 6551 | static const char * |
| 6552 | get_DW_SECT_short_name (unsigned int dw_sect) |
| 6553 | { |
| 6554 | static char buf[16]; |
| 6555 | |
| 6556 | switch (dw_sect) |
| 6557 | { |
| 6558 | case DW_SECT_INFO: |
| 6559 | return "info"; |
| 6560 | case DW_SECT_TYPES: |
| 6561 | return "types"; |
| 6562 | case DW_SECT_ABBREV: |
| 6563 | return "abbrev"; |
| 6564 | case DW_SECT_LINE: |
| 6565 | return "line"; |
| 6566 | case DW_SECT_LOC: |
| 6567 | return "loc"; |
| 6568 | case DW_SECT_STR_OFFSETS: |
| 6569 | return "str_off"; |
| 6570 | case DW_SECT_MACINFO: |
| 6571 | return "macinfo"; |
| 6572 | case DW_SECT_MACRO: |
| 6573 | return "macro"; |
| 6574 | default: |
| 6575 | break; |
| 6576 | } |
| 6577 | |
| 6578 | snprintf (buf, sizeof (buf), "%d", dw_sect); |
| 6579 | return buf; |
| 6580 | } |
| 6581 | |
| 6582 | /* Process a CU or TU index. If DO_DISPLAY is true, print the contents. |
| 6583 | These sections are extensions for Fission. |
| 6584 | See http://gcc.gnu.org/wiki/DebugFissionDWP. */ |
| 6585 | |
| 6586 | static int |
| 6587 | process_cu_tu_index (struct dwarf_section *section, int do_display) |
| 6588 | { |
| 6589 | unsigned char *phdr = section->start; |
| 6590 | unsigned char *limit = phdr + section->size; |
| 6591 | unsigned char *phash; |
| 6592 | unsigned char *pindex; |
| 6593 | unsigned char *ppool; |
| 6594 | unsigned int version; |
| 6595 | unsigned int ncols = 0; |
| 6596 | unsigned int nused; |
| 6597 | unsigned int nslots; |
| 6598 | unsigned int i; |
| 6599 | unsigned int j; |
| 6600 | dwarf_vma signature_high; |
| 6601 | dwarf_vma signature_low; |
| 6602 | char buf[64]; |
| 6603 | |
| 6604 | /* PR 17512: file: 002-168123-0.004. */ |
| 6605 | if (phdr == NULL) |
| 6606 | { |
| 6607 | warn (_("Section %s is empty\n"), section->name); |
| 6608 | return 0; |
| 6609 | } |
| 6610 | /* PR 17512: file: 002-376-0.004. */ |
| 6611 | if (section->size < 24) |
| 6612 | { |
| 6613 | warn (_("Section %s is too small to contain a CU/TU header"), |
| 6614 | section->name); |
| 6615 | return 0; |
| 6616 | } |
| 6617 | |
| 6618 | SAFE_BYTE_GET (version, phdr, 4, limit); |
| 6619 | if (version >= 2) |
| 6620 | SAFE_BYTE_GET (ncols, phdr + 4, 4, limit); |
| 6621 | SAFE_BYTE_GET (nused, phdr + 8, 4, limit); |
| 6622 | SAFE_BYTE_GET (nslots, phdr + 12, 4, limit); |
| 6623 | |
| 6624 | phash = phdr + 16; |
| 6625 | pindex = phash + nslots * 8; |
| 6626 | ppool = pindex + nslots * 4; |
| 6627 | |
| 6628 | if (do_display) |
| 6629 | { |
| 6630 | printf (_("Contents of the %s section:\n\n"), section->name); |
| 6631 | printf (_(" Version: %d\n"), version); |
| 6632 | if (version >= 2) |
| 6633 | printf (_(" Number of columns: %d\n"), ncols); |
| 6634 | printf (_(" Number of used entries: %d\n"), nused); |
| 6635 | printf (_(" Number of slots: %d\n\n"), nslots); |
| 6636 | } |
| 6637 | |
| 6638 | if (ppool > limit) |
| 6639 | { |
| 6640 | warn (_("Section %s too small for %d hash table entries\n"), |
| 6641 | section->name, nslots); |
| 6642 | return 0; |
| 6643 | } |
| 6644 | |
| 6645 | if (version == 1) |
| 6646 | { |
| 6647 | if (!do_display) |
| 6648 | prealloc_cu_tu_list ((limit - ppool) / 4); |
| 6649 | for (i = 0; i < nslots; i++) |
| 6650 | { |
| 6651 | unsigned char *shndx_list; |
| 6652 | unsigned int shndx; |
| 6653 | |
| 6654 | SAFE_BYTE_GET64 (phash, &signature_high, &signature_low, limit); |
| 6655 | if (signature_high != 0 || signature_low != 0) |
| 6656 | { |
| 6657 | SAFE_BYTE_GET (j, pindex, 4, limit); |
| 6658 | shndx_list = ppool + j * 4; |
| 6659 | if (do_display) |
| 6660 | printf (_(" [%3d] Signature: 0x%s Sections: "), |
| 6661 | i, dwarf_vmatoa64 (signature_high, signature_low, |
| 6662 | buf, sizeof (buf))); |
| 6663 | for (;;) |
| 6664 | { |
| 6665 | if (shndx_list >= limit) |
| 6666 | { |
| 6667 | warn (_("Section %s too small for shndx pool\n"), |
| 6668 | section->name); |
| 6669 | return 0; |
| 6670 | } |
| 6671 | SAFE_BYTE_GET (shndx, shndx_list, 4, limit); |
| 6672 | if (shndx == 0) |
| 6673 | break; |
| 6674 | if (do_display) |
| 6675 | printf (" %d", shndx); |
| 6676 | else |
| 6677 | add_shndx_to_cu_tu_entry (shndx); |
| 6678 | shndx_list += 4; |
| 6679 | } |
| 6680 | if (do_display) |
| 6681 | printf ("\n"); |
| 6682 | else |
| 6683 | end_cu_tu_entry (); |
| 6684 | } |
| 6685 | phash += 8; |
| 6686 | pindex += 4; |
| 6687 | } |
| 6688 | } |
| 6689 | else if (version == 2) |
| 6690 | { |
| 6691 | unsigned int val; |
| 6692 | unsigned int dw_sect; |
| 6693 | unsigned char *ph = phash; |
| 6694 | unsigned char *pi = pindex; |
| 6695 | unsigned char *poffsets = ppool + ncols * 4; |
| 6696 | unsigned char *psizes = poffsets + nused * ncols * 4; |
| 6697 | unsigned char *pend = psizes + nused * ncols * 4; |
| 6698 | bfd_boolean is_tu_index; |
| 6699 | struct cu_tu_set *this_set = NULL; |
| 6700 | unsigned int row; |
| 6701 | unsigned char *prow; |
| 6702 | |
| 6703 | is_tu_index = strcmp (section->name, ".debug_tu_index") == 0; |
| 6704 | |
| 6705 | if (pend > limit) |
| 6706 | { |
| 6707 | warn (_("Section %s too small for offset and size tables\n"), |
| 6708 | section->name); |
| 6709 | return 0; |
| 6710 | } |
| 6711 | |
| 6712 | if (do_display) |
| 6713 | { |
| 6714 | printf (_(" Offset table\n")); |
| 6715 | printf (" slot %-16s ", |
| 6716 | is_tu_index ? _("signature") : _("dwo_id")); |
| 6717 | } |
| 6718 | else |
| 6719 | { |
| 6720 | if (is_tu_index) |
| 6721 | { |
| 6722 | tu_count = nused; |
| 6723 | tu_sets = xcmalloc (nused, sizeof (struct cu_tu_set)); |
| 6724 | this_set = tu_sets; |
| 6725 | } |
| 6726 | else |
| 6727 | { |
| 6728 | cu_count = nused; |
| 6729 | cu_sets = xcmalloc (nused, sizeof (struct cu_tu_set)); |
| 6730 | this_set = cu_sets; |
| 6731 | } |
| 6732 | } |
| 6733 | |
| 6734 | if (do_display) |
| 6735 | { |
| 6736 | for (j = 0; j < ncols; j++) |
| 6737 | { |
| 6738 | SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit); |
| 6739 | printf (" %8s", get_DW_SECT_short_name (dw_sect)); |
| 6740 | } |
| 6741 | printf ("\n"); |
| 6742 | } |
| 6743 | |
| 6744 | for (i = 0; i < nslots; i++) |
| 6745 | { |
| 6746 | SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit); |
| 6747 | |
| 6748 | SAFE_BYTE_GET (row, pi, 4, limit); |
| 6749 | if (row != 0) |
| 6750 | { |
| 6751 | if (!do_display) |
| 6752 | memcpy (&this_set[row - 1].signature, ph, sizeof (uint64_t)); |
| 6753 | |
| 6754 | prow = poffsets + (row - 1) * ncols * 4; |
| 6755 | |
| 6756 | if (do_display) |
| 6757 | printf (_(" [%3d] 0x%s"), |
| 6758 | i, dwarf_vmatoa64 (signature_high, signature_low, |
| 6759 | buf, sizeof (buf))); |
| 6760 | for (j = 0; j < ncols; j++) |
| 6761 | { |
| 6762 | SAFE_BYTE_GET (val, prow + j * 4, 4, limit); |
| 6763 | if (do_display) |
| 6764 | printf (" %8d", val); |
| 6765 | else |
| 6766 | { |
| 6767 | SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit); |
| 6768 | this_set [row - 1].section_offsets [dw_sect] = val; |
| 6769 | } |
| 6770 | } |
| 6771 | |
| 6772 | if (do_display) |
| 6773 | printf ("\n"); |
| 6774 | } |
| 6775 | ph += 8; |
| 6776 | pi += 4; |
| 6777 | } |
| 6778 | |
| 6779 | ph = phash; |
| 6780 | pi = pindex; |
| 6781 | if (do_display) |
| 6782 | { |
| 6783 | printf ("\n"); |
| 6784 | printf (_(" Size table\n")); |
| 6785 | printf (" slot %-16s ", |
| 6786 | is_tu_index ? _("signature") : _("dwo_id")); |
| 6787 | } |
| 6788 | |
| 6789 | for (j = 0; j < ncols; j++) |
| 6790 | { |
| 6791 | SAFE_BYTE_GET (val, ppool + j * 4, 4, limit); |
| 6792 | if (do_display) |
| 6793 | printf (" %8s", get_DW_SECT_short_name (val)); |
| 6794 | } |
| 6795 | |
| 6796 | if (do_display) |
| 6797 | printf ("\n"); |
| 6798 | |
| 6799 | for (i = 0; i < nslots; i++) |
| 6800 | { |
| 6801 | SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit); |
| 6802 | |
| 6803 | SAFE_BYTE_GET (row, pi, 4, limit); |
| 6804 | if (row != 0) |
| 6805 | { |
| 6806 | prow = psizes + (row - 1) * ncols * 4; |
| 6807 | |
| 6808 | if (do_display) |
| 6809 | printf (_(" [%3d] 0x%s"), |
| 6810 | i, dwarf_vmatoa64 (signature_high, signature_low, |
| 6811 | buf, sizeof (buf))); |
| 6812 | |
| 6813 | for (j = 0; j < ncols; j++) |
| 6814 | { |
| 6815 | SAFE_BYTE_GET (val, prow + j * 4, 4, limit); |
| 6816 | if (do_display) |
| 6817 | printf (" %8d", val); |
| 6818 | else |
| 6819 | { |
| 6820 | SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit); |
| 6821 | this_set [row - 1].section_sizes [dw_sect] = val; |
| 6822 | } |
| 6823 | } |
| 6824 | |
| 6825 | if (do_display) |
| 6826 | printf ("\n"); |
| 6827 | } |
| 6828 | |
| 6829 | ph += 8; |
| 6830 | pi += 4; |
| 6831 | } |
| 6832 | } |
| 6833 | else if (do_display) |
| 6834 | printf (_(" Unsupported version (%d)\n"), version); |
| 6835 | |
| 6836 | if (do_display) |
| 6837 | printf ("\n"); |
| 6838 | |
| 6839 | return 1; |
| 6840 | } |
| 6841 | |
| 6842 | /* Load the CU and TU indexes if present. This will build a list of |
| 6843 | section sets that we can use to associate a .debug_info.dwo section |
| 6844 | with its associated .debug_abbrev.dwo section in a .dwp file. */ |
| 6845 | |
| 6846 | static void |
| 6847 | load_cu_tu_indexes (void *file) |
| 6848 | { |
| 6849 | /* If we have already loaded (or tried to load) the CU and TU indexes |
| 6850 | then do not bother to repeat the task. */ |
| 6851 | if (cu_tu_indexes_read) |
| 6852 | return; |
| 6853 | |
| 6854 | if (load_debug_section (dwp_cu_index, file)) |
| 6855 | process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0); |
| 6856 | |
| 6857 | if (load_debug_section (dwp_tu_index, file)) |
| 6858 | process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0); |
| 6859 | |
| 6860 | cu_tu_indexes_read = 1; |
| 6861 | } |
| 6862 | |
| 6863 | /* Find the set of sections that includes section SHNDX. */ |
| 6864 | |
| 6865 | unsigned int * |
| 6866 | find_cu_tu_set (void *file, unsigned int shndx) |
| 6867 | { |
| 6868 | unsigned int i; |
| 6869 | |
| 6870 | load_cu_tu_indexes (file); |
| 6871 | |
| 6872 | /* Find SHNDX in the shndx pool. */ |
| 6873 | for (i = 0; i < shndx_pool_used; i++) |
| 6874 | if (shndx_pool [i] == shndx) |
| 6875 | break; |
| 6876 | |
| 6877 | if (i >= shndx_pool_used) |
| 6878 | return NULL; |
| 6879 | |
| 6880 | /* Now backup to find the first entry in the set. */ |
| 6881 | while (i > 0 && shndx_pool [i - 1] != 0) |
| 6882 | i--; |
| 6883 | |
| 6884 | return shndx_pool + i; |
| 6885 | } |
| 6886 | |
| 6887 | /* Display a .debug_cu_index or .debug_tu_index section. */ |
| 6888 | |
| 6889 | static int |
| 6890 | display_cu_index (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) |
| 6891 | { |
| 6892 | return process_cu_tu_index (section, 1); |
| 6893 | } |
| 6894 | |
| 6895 | static int |
| 6896 | display_debug_not_supported (struct dwarf_section *section, |
| 6897 | void *file ATTRIBUTE_UNUSED) |
| 6898 | { |
| 6899 | printf (_("Displaying the debug contents of section %s is not yet supported.\n"), |
| 6900 | section->name); |
| 6901 | |
| 6902 | return 1; |
| 6903 | } |
| 6904 | |
| 6905 | void * |
| 6906 | cmalloc (size_t nmemb, size_t size) |
| 6907 | { |
| 6908 | /* Check for overflow. */ |
| 6909 | if (nmemb >= ~(size_t) 0 / size) |
| 6910 | return NULL; |
| 6911 | else |
| 6912 | return malloc (nmemb * size); |
| 6913 | } |
| 6914 | |
| 6915 | void * |
| 6916 | xcmalloc (size_t nmemb, size_t size) |
| 6917 | { |
| 6918 | /* Check for overflow. */ |
| 6919 | if (nmemb >= ~(size_t) 0 / size) |
| 6920 | return NULL; |
| 6921 | else |
| 6922 | return xmalloc (nmemb * size); |
| 6923 | } |
| 6924 | |
| 6925 | void * |
| 6926 | xcrealloc (void *ptr, size_t nmemb, size_t size) |
| 6927 | { |
| 6928 | /* Check for overflow. */ |
| 6929 | if (nmemb >= ~(size_t) 0 / size) |
| 6930 | return NULL; |
| 6931 | else |
| 6932 | return xrealloc (ptr, nmemb * size); |
| 6933 | } |
| 6934 | |
| 6935 | void |
| 6936 | free_debug_memory (void) |
| 6937 | { |
| 6938 | unsigned int i; |
| 6939 | |
| 6940 | free_abbrevs (); |
| 6941 | |
| 6942 | for (i = 0; i < max; i++) |
| 6943 | free_debug_section ((enum dwarf_section_display_enum) i); |
| 6944 | |
| 6945 | if (debug_information != NULL) |
| 6946 | { |
| 6947 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE) |
| 6948 | { |
| 6949 | for (i = 0; i < num_debug_info_entries; i++) |
| 6950 | { |
| 6951 | if (!debug_information [i].max_loc_offsets) |
| 6952 | { |
| 6953 | free (debug_information [i].loc_offsets); |
| 6954 | free (debug_information [i].have_frame_base); |
| 6955 | } |
| 6956 | if (!debug_information [i].max_range_lists) |
| 6957 | free (debug_information [i].range_lists); |
| 6958 | } |
| 6959 | } |
| 6960 | |
| 6961 | free (debug_information); |
| 6962 | debug_information = NULL; |
| 6963 | num_debug_info_entries = 0; |
| 6964 | } |
| 6965 | } |
| 6966 | |
| 6967 | void |
| 6968 | dwarf_select_sections_by_names (const char *names) |
| 6969 | { |
| 6970 | typedef struct |
| 6971 | { |
| 6972 | const char * option; |
| 6973 | int * variable; |
| 6974 | int val; |
| 6975 | } |
| 6976 | debug_dump_long_opts; |
| 6977 | |
| 6978 | static const debug_dump_long_opts opts_table [] = |
| 6979 | { |
| 6980 | /* Please keep this table alpha- sorted. */ |
| 6981 | { "Ranges", & do_debug_ranges, 1 }, |
| 6982 | { "abbrev", & do_debug_abbrevs, 1 }, |
| 6983 | { "addr", & do_debug_addr, 1 }, |
| 6984 | { "aranges", & do_debug_aranges, 1 }, |
| 6985 | { "cu_index", & do_debug_cu_index, 1 }, |
| 6986 | { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED }, |
| 6987 | { "frames", & do_debug_frames, 1 }, |
| 6988 | { "frames-interp", & do_debug_frames_interp, 1 }, |
| 6989 | /* The special .gdb_index section. */ |
| 6990 | { "gdb_index", & do_gdb_index, 1 }, |
| 6991 | { "info", & do_debug_info, 1 }, |
| 6992 | { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */ |
| 6993 | { "loc", & do_debug_loc, 1 }, |
| 6994 | { "macro", & do_debug_macinfo, 1 }, |
| 6995 | { "pubnames", & do_debug_pubnames, 1 }, |
| 6996 | { "pubtypes", & do_debug_pubtypes, 1 }, |
| 6997 | /* This entry is for compatability |
| 6998 | with earlier versions of readelf. */ |
| 6999 | { "ranges", & do_debug_aranges, 1 }, |
| 7000 | { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, |
| 7001 | { "str", & do_debug_str, 1 }, |
| 7002 | /* These trace_* sections are used by Itanium VMS. */ |
| 7003 | { "trace_abbrev", & do_trace_abbrevs, 1 }, |
| 7004 | { "trace_aranges", & do_trace_aranges, 1 }, |
| 7005 | { "trace_info", & do_trace_info, 1 }, |
| 7006 | { NULL, NULL, 0 } |
| 7007 | }; |
| 7008 | |
| 7009 | const char *p; |
| 7010 | |
| 7011 | p = names; |
| 7012 | while (*p) |
| 7013 | { |
| 7014 | const debug_dump_long_opts * entry; |
| 7015 | |
| 7016 | for (entry = opts_table; entry->option; entry++) |
| 7017 | { |
| 7018 | size_t len = strlen (entry->option); |
| 7019 | |
| 7020 | if (strncmp (p, entry->option, len) == 0 |
| 7021 | && (p[len] == ',' || p[len] == '\0')) |
| 7022 | { |
| 7023 | * entry->variable |= entry->val; |
| 7024 | |
| 7025 | /* The --debug-dump=frames-interp option also |
| 7026 | enables the --debug-dump=frames option. */ |
| 7027 | if (do_debug_frames_interp) |
| 7028 | do_debug_frames = 1; |
| 7029 | |
| 7030 | p += len; |
| 7031 | break; |
| 7032 | } |
| 7033 | } |
| 7034 | |
| 7035 | if (entry->option == NULL) |
| 7036 | { |
| 7037 | warn (_("Unrecognized debug option '%s'\n"), p); |
| 7038 | p = strchr (p, ','); |
| 7039 | if (p == NULL) |
| 7040 | break; |
| 7041 | } |
| 7042 | |
| 7043 | if (*p == ',') |
| 7044 | p++; |
| 7045 | } |
| 7046 | } |
| 7047 | |
| 7048 | void |
| 7049 | dwarf_select_sections_by_letters (const char *letters) |
| 7050 | { |
| 7051 | unsigned int lindex = 0; |
| 7052 | |
| 7053 | while (letters[lindex]) |
| 7054 | switch (letters[lindex++]) |
| 7055 | { |
| 7056 | case 'i': |
| 7057 | do_debug_info = 1; |
| 7058 | break; |
| 7059 | |
| 7060 | case 'a': |
| 7061 | do_debug_abbrevs = 1; |
| 7062 | break; |
| 7063 | |
| 7064 | case 'l': |
| 7065 | do_debug_lines |= FLAG_DEBUG_LINES_RAW; |
| 7066 | break; |
| 7067 | |
| 7068 | case 'L': |
| 7069 | do_debug_lines |= FLAG_DEBUG_LINES_DECODED; |
| 7070 | break; |
| 7071 | |
| 7072 | case 'p': |
| 7073 | do_debug_pubnames = 1; |
| 7074 | break; |
| 7075 | |
| 7076 | case 't': |
| 7077 | do_debug_pubtypes = 1; |
| 7078 | break; |
| 7079 | |
| 7080 | case 'r': |
| 7081 | do_debug_aranges = 1; |
| 7082 | break; |
| 7083 | |
| 7084 | case 'R': |
| 7085 | do_debug_ranges = 1; |
| 7086 | break; |
| 7087 | |
| 7088 | case 'F': |
| 7089 | do_debug_frames_interp = 1; |
| 7090 | case 'f': |
| 7091 | do_debug_frames = 1; |
| 7092 | break; |
| 7093 | |
| 7094 | case 'm': |
| 7095 | do_debug_macinfo = 1; |
| 7096 | break; |
| 7097 | |
| 7098 | case 's': |
| 7099 | do_debug_str = 1; |
| 7100 | break; |
| 7101 | |
| 7102 | case 'o': |
| 7103 | do_debug_loc = 1; |
| 7104 | break; |
| 7105 | |
| 7106 | default: |
| 7107 | warn (_("Unrecognized debug option '%s'\n"), optarg); |
| 7108 | break; |
| 7109 | } |
| 7110 | } |
| 7111 | |
| 7112 | void |
| 7113 | dwarf_select_sections_all (void) |
| 7114 | { |
| 7115 | do_debug_info = 1; |
| 7116 | do_debug_abbrevs = 1; |
| 7117 | do_debug_lines = FLAG_DEBUG_LINES_RAW; |
| 7118 | do_debug_pubnames = 1; |
| 7119 | do_debug_pubtypes = 1; |
| 7120 | do_debug_aranges = 1; |
| 7121 | do_debug_ranges = 1; |
| 7122 | do_debug_frames = 1; |
| 7123 | do_debug_macinfo = 1; |
| 7124 | do_debug_str = 1; |
| 7125 | do_debug_loc = 1; |
| 7126 | do_gdb_index = 1; |
| 7127 | do_trace_info = 1; |
| 7128 | do_trace_abbrevs = 1; |
| 7129 | do_trace_aranges = 1; |
| 7130 | do_debug_addr = 1; |
| 7131 | do_debug_cu_index = 1; |
| 7132 | } |
| 7133 | |
| 7134 | struct dwarf_section_display debug_displays[] = |
| 7135 | { |
| 7136 | { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0 }, |
| 7137 | display_debug_abbrev, &do_debug_abbrevs, 0 }, |
| 7138 | { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0 }, |
| 7139 | display_debug_aranges, &do_debug_aranges, 1 }, |
| 7140 | { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0 }, |
| 7141 | display_debug_frames, &do_debug_frames, 1 }, |
| 7142 | { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev }, |
| 7143 | display_debug_info, &do_debug_info, 1 }, |
| 7144 | { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0 }, |
| 7145 | display_debug_lines, &do_debug_lines, 1 }, |
| 7146 | { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0 }, |
| 7147 | display_debug_pubnames, &do_debug_pubnames, 0 }, |
| 7148 | { { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NULL, NULL, 0, 0, 0 }, |
| 7149 | display_debug_gnu_pubnames, &do_debug_pubnames, 0 }, |
| 7150 | { { ".eh_frame", "", NULL, NULL, 0, 0, 0 }, |
| 7151 | display_debug_frames, &do_debug_frames, 1 }, |
| 7152 | { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0 }, |
| 7153 | display_debug_macinfo, &do_debug_macinfo, 0 }, |
| 7154 | { { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0 }, |
| 7155 | display_debug_macro, &do_debug_macinfo, 1 }, |
| 7156 | { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0 }, |
| 7157 | display_debug_str, &do_debug_str, 0 }, |
| 7158 | { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0 }, |
| 7159 | display_debug_loc, &do_debug_loc, 1 }, |
| 7160 | { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0 }, |
| 7161 | display_debug_pubnames, &do_debug_pubtypes, 0 }, |
| 7162 | { { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NULL, NULL, 0, 0, 0 }, |
| 7163 | display_debug_gnu_pubnames, &do_debug_pubtypes, 0 }, |
| 7164 | { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0 }, |
| 7165 | display_debug_ranges, &do_debug_ranges, 1 }, |
| 7166 | { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0 }, |
| 7167 | display_debug_not_supported, NULL, 0 }, |
| 7168 | { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0 }, |
| 7169 | display_debug_not_supported, NULL, 0 }, |
| 7170 | { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev }, |
| 7171 | display_debug_types, &do_debug_info, 1 }, |
| 7172 | { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0 }, |
| 7173 | display_debug_not_supported, NULL, 0 }, |
| 7174 | { { ".gdb_index", "", NULL, NULL, 0, 0, 0 }, |
| 7175 | display_gdb_index, &do_gdb_index, 0 }, |
| 7176 | { { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev }, |
| 7177 | display_trace_info, &do_trace_info, 1 }, |
| 7178 | { { ".trace_abbrev", "", NULL, NULL, 0, 0, 0 }, |
| 7179 | display_debug_abbrev, &do_trace_abbrevs, 0 }, |
| 7180 | { { ".trace_aranges", "", NULL, NULL, 0, 0, 0 }, |
| 7181 | display_debug_aranges, &do_trace_aranges, 0 }, |
| 7182 | { { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo }, |
| 7183 | display_debug_info, &do_debug_info, 1 }, |
| 7184 | { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0 }, |
| 7185 | display_debug_abbrev, &do_debug_abbrevs, 0 }, |
| 7186 | { { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo }, |
| 7187 | display_debug_types, &do_debug_info, 1 }, |
| 7188 | { { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0 }, |
| 7189 | display_debug_lines, &do_debug_lines, 1 }, |
| 7190 | { { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0 }, |
| 7191 | display_debug_loc, &do_debug_loc, 1 }, |
| 7192 | { { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0 }, |
| 7193 | display_debug_macro, &do_debug_macinfo, 1 }, |
| 7194 | { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0 }, |
| 7195 | display_debug_macinfo, &do_debug_macinfo, 0 }, |
| 7196 | { { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0 }, |
| 7197 | display_debug_str, &do_debug_str, 1 }, |
| 7198 | { { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0 }, |
| 7199 | display_debug_str_offsets, NULL, 0 }, |
| 7200 | { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0 }, |
| 7201 | display_debug_str_offsets, NULL, 0 }, |
| 7202 | { { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0 }, |
| 7203 | display_debug_addr, &do_debug_addr, 1 }, |
| 7204 | { { ".debug_cu_index", "", NULL, NULL, 0, 0, 0 }, |
| 7205 | display_cu_index, &do_debug_cu_index, 0 }, |
| 7206 | { { ".debug_tu_index", "", NULL, NULL, 0, 0, 0 }, |
| 7207 | display_cu_index, &do_debug_cu_index, 0 }, |
| 7208 | }; |