1 // SPDX-License-Identifier: GPL-2.0 2 /* This is included from relocs_32/64.c */ 3 4 #define ElfW(type) _ElfW(ELF_BITS, type) 5 #define _ElfW(bits, type) __ElfW(bits, type) 6 #define __ElfW(bits, type) Elf##bits##_##type 7 8 #define Elf_Addr ElfW(Addr) 9 #define Elf_Ehdr ElfW(Ehdr) 10 #define Elf_Phdr ElfW(Phdr) 11 #define Elf_Shdr ElfW(Shdr) 12 #define Elf_Sym ElfW(Sym) 13 14 static Elf_Ehdr ehdr; 15 16 struct relocs { 17 uint32_t *offset; 18 unsigned long count; 19 unsigned long size; 20 }; 21 22 static struct relocs relocs; 23 24 struct section { 25 Elf_Shdr shdr; 26 struct section *link; 27 Elf_Sym *symtab; 28 Elf_Rel *reltab; 29 char *strtab; 30 long shdr_offset; 31 }; 32 static struct section *secs; 33 34 static const char * const regex_sym_kernel = { 35 /* Symbols matching these regex's should never be relocated */ 36 "^(__crc_)", 37 }; 38 39 static regex_t sym_regex_c; 40 41 static int regex_skip_reloc(const char *sym_name) 42 { 43 return !regexec(&sym_regex_c, sym_name, 0, NULL, 0); 44 } 45 46 static void regex_init(void) 47 { 48 char errbuf[128]; 49 int err; 50 51 err = regcomp(&sym_regex_c, regex_sym_kernel, 52 REG_EXTENDED|REG_NOSUB); 53 54 if (err) { 55 regerror(err, &sym_regex_c, errbuf, sizeof(errbuf)); 56 die("%s", errbuf); 57 } 58 } 59 60 static const char *rel_type(unsigned type) 61 { 62 static const char * const type_name[] = { 63 #define REL_TYPE(X)[X] = #X 64 REL_TYPE(R_MIPS_NONE), 65 REL_TYPE(R_MIPS_16), 66 REL_TYPE(R_MIPS_32), 67 REL_TYPE(R_MIPS_REL32), 68 REL_TYPE(R_MIPS_26), 69 REL_TYPE(R_MIPS_HI16), 70 REL_TYPE(R_MIPS_LO16), 71 REL_TYPE(R_MIPS_GPREL16), 72 REL_TYPE(R_MIPS_LITERAL), 73 REL_TYPE(R_MIPS_GOT16), 74 REL_TYPE(R_MIPS_PC16), 75 REL_TYPE(R_MIPS_CALL16), 76 REL_TYPE(R_MIPS_GPREL32), 77 REL_TYPE(R_MIPS_64), 78 REL_TYPE(R_MIPS_HIGHER), 79 REL_TYPE(R_MIPS_HIGHEST), 80 REL_TYPE(R_MIPS_PC21_S2), 81 REL_TYPE(R_MIPS_PC26_S2), 82 REL_TYPE(R_MIPS_PC32), 83 #undef REL_TYPE 84 }; 85 const char *name = "unknown type rel type name"; 86 87 if (type < ARRAY_SIZE(type_name) && type_name[type]) 88 name = type_name[type]; 89 return name; 90 } 91 92 static const char *sec_name(unsigned shndx) 93 { 94 const char *sec_strtab; 95 const char *name; 96 97 sec_strtab = secs[ehdr.e_shstrndx].strtab; 98 if (shndx < ehdr.e_shnum) 99 name = sec_strtab + secs[shndx].shdr.sh_name; 100 else if (shndx == SHN_ABS) 101 name = "ABSOLUTE"; 102 else if (shndx == SHN_COMMON) 103 name = "COMMON"; 104 else 105 name = "<noname>"; 106 return name; 107 } 108 109 static struct section *sec_lookup(const char *secname) 110 { 111 int i; 112 113 for (i = 0; i < ehdr.e_shnum; i++) 114 if (strcmp(secname, sec_name(i)) == 0) 115 return &secs[i]; 116 117 return NULL; 118 } 119 120 static const char *sym_name(const char *sym_strtab, Elf_Sym *sym) 121 { 122 const char *name; 123 124 if (sym->st_name) 125 name = sym_strtab + sym->st_name; 126 else 127 name = sec_name(sym->st_shndx); 128 return name; 129 } 130 131 #if BYTE_ORDER == LITTLE_ENDIAN 132 #define le16_to_cpu(val) (val) 133 #define le32_to_cpu(val) (val) 134 #define le64_to_cpu(val) (val) 135 #define be16_to_cpu(val) bswap_16(val) 136 #define be32_to_cpu(val) bswap_32(val) 137 #define be64_to_cpu(val) bswap_64(val) 138 139 #define cpu_to_le16(val) (val) 140 #define cpu_to_le32(val) (val) 141 #define cpu_to_le64(val) (val) 142 #define cpu_to_be16(val) bswap_16(val) 143 #define cpu_to_be32(val) bswap_32(val) 144 #define cpu_to_be64(val) bswap_64(val) 145 #endif 146 #if BYTE_ORDER == BIG_ENDIAN 147 #define le16_to_cpu(val) bswap_16(val) 148 #define le32_to_cpu(val) bswap_32(val) 149 #define le64_to_cpu(val) bswap_64(val) 150 #define be16_to_cpu(val) (val) 151 #define be32_to_cpu(val) (val) 152 #define be64_to_cpu(val) (val) 153 154 #define cpu_to_le16(val) bswap_16(val) 155 #define cpu_to_le32(val) bswap_32(val) 156 #define cpu_to_le64(val) bswap_64(val) 157 #define cpu_to_be16(val) (val) 158 #define cpu_to_be32(val) (val) 159 #define cpu_to_be64(val) (val) 160 #endif 161 162 static uint16_t elf16_to_cpu(uint16_t val) 163 { 164 if (ehdr.e_ident[EI_DATA] == ELFDATA2LSB) 165 return le16_to_cpu(val); 166 else 167 return be16_to_cpu(val); 168 } 169 170 static uint32_t elf32_to_cpu(uint32_t val) 171 { 172 if (ehdr.e_ident[EI_DATA] == ELFDATA2LSB) 173 return le32_to_cpu(val); 174 else 175 return be32_to_cpu(val); 176 } 177 178 static uint32_t cpu_to_elf32(uint32_t val) 179 { 180 if (ehdr.e_ident[EI_DATA] == ELFDATA2LSB) 181 return cpu_to_le32(val); 182 else 183 return cpu_to_be32(val); 184 } 185 186 #define elf_half_to_cpu(x) elf16_to_cpu(x) 187 #define elf_word_to_cpu(x) elf32_to_cpu(x) 188 189 #if ELF_BITS == 64 190 static uint64_t elf64_to_cpu(uint64_t val) 191 { 192 if (ehdr.e_ident[EI_DATA] == ELFDATA2LSB) 193 return le64_to_cpu(val); 194 else 195 return be64_to_cpu(val); 196 } 197 #define elf_addr_to_cpu(x) elf64_to_cpu(x) 198 #define elf_off_to_cpu(x) elf64_to_cpu(x) 199 #define elf_xword_to_cpu(x) elf64_to_cpu(x) 200 #else 201 #define elf_addr_to_cpu(x) elf32_to_cpu(x) 202 #define elf_off_to_cpu(x) elf32_to_cpu(x) 203 #define elf_xword_to_cpu(x) elf32_to_cpu(x) 204 #endif 205 206 static void read_ehdr(FILE *fp) 207 { 208 if (fread(&ehdr, sizeof(ehdr), 1, fp) != 1) 209 die("Cannot read ELF header: %s\n", strerror(errno)); 210 211 if (memcmp(ehdr.e_ident, ELFMAG, SELFMAG) != 0) 212 die("No ELF magic\n"); 213 214 if (ehdr.e_ident[EI_CLASS] != ELF_CLASS) 215 die("Not a %d bit executable\n", ELF_BITS); 216 217 if ((ehdr.e_ident[EI_DATA] != ELFDATA2LSB) && 218 (ehdr.e_ident[EI_DATA] != ELFDATA2MSB)) 219 die("Unknown ELF Endianness\n"); 220 221 if (ehdr.e_ident[EI_VERSION] != EV_CURRENT) 222 die("Unknown ELF version\n"); 223 224 /* Convert the fields to native endian */ 225 ehdr.e_type = elf_half_to_cpu(ehdr.e_type); 226 ehdr.e_machine = elf_half_to_cpu(ehdr.e_machine); 227 ehdr.e_version = elf_word_to_cpu(ehdr.e_version); 228 ehdr.e_entry = elf_addr_to_cpu(ehdr.e_entry); 229 ehdr.e_phoff = elf_off_to_cpu(ehdr.e_phoff); 230 ehdr.e_shoff = elf_off_to_cpu(ehdr.e_shoff); 231 ehdr.e_flags = elf_word_to_cpu(ehdr.e_flags); 232 ehdr.e_ehsize = elf_half_to_cpu(ehdr.e_ehsize); 233 ehdr.e_phentsize = elf_half_to_cpu(ehdr.e_phentsize); 234 ehdr.e_phnum = elf_half_to_cpu(ehdr.e_phnum); 235 ehdr.e_shentsize = elf_half_to_cpu(ehdr.e_shentsize); 236 ehdr.e_shnum = elf_half_to_cpu(ehdr.e_shnum); 237 ehdr.e_shstrndx = elf_half_to_cpu(ehdr.e_shstrndx); 238 239 if ((ehdr.e_type != ET_EXEC) && (ehdr.e_type != ET_DYN)) 240 die("Unsupported ELF header type\n"); 241 242 if (ehdr.e_machine != ELF_MACHINE) 243 die("Not for %s\n", ELF_MACHINE_NAME); 244 245 if (ehdr.e_version != EV_CURRENT) 246 die("Unknown ELF version\n"); 247 248 if (ehdr.e_ehsize != sizeof(Elf_Ehdr)) 249 die("Bad ELF header size\n"); 250 251 if (ehdr.e_phentsize != sizeof(Elf_Phdr)) 252 die("Bad program header entry\n"); 253 254 if (ehdr.e_shentsize != sizeof(Elf_Shdr)) 255 die("Bad section header entry\n"); 256 257 if (ehdr.e_shstrndx >= ehdr.e_shnum) 258 die("String table index out of bounds\n"); 259 } 260 261 static void read_shdrs(FILE *fp) 262 { 263 int i; 264 Elf_Shdr shdr; 265 266 secs = calloc(ehdr.e_shnum, sizeof(struct section)); 267 if (!secs) 268 die("Unable to allocate %d section headers\n", ehdr.e_shnum); 269 270 if (fseek(fp, ehdr.e_shoff, SEEK_SET) < 0) 271 die("Seek to %d failed: %s\n", ehdr.e_shoff, strerror(errno)); 272 273 for (i = 0; i < ehdr.e_shnum; i++) { 274 struct section *sec = &secs[i]; 275 276 sec->shdr_offset = ftell(fp); 277 if (fread(&shdr, sizeof(shdr), 1, fp) != 1) 278 die("Cannot read ELF section headers %d/%d: %s\n", 279 i, ehdr.e_shnum, strerror(errno)); 280 sec->shdr.sh_name = elf_word_to_cpu(shdr.sh_name); 281 sec->shdr.sh_type = elf_word_to_cpu(shdr.sh_type); 282 sec->shdr.sh_flags = elf_xword_to_cpu(shdr.sh_flags); 283 sec->shdr.sh_addr = elf_addr_to_cpu(shdr.sh_addr); 284 sec->shdr.sh_offset = elf_off_to_cpu(shdr.sh_offset); 285 sec->shdr.sh_size = elf_xword_to_cpu(shdr.sh_size); 286 sec->shdr.sh_link = elf_word_to_cpu(shdr.sh_link); 287 sec->shdr.sh_info = elf_word_to_cpu(shdr.sh_info); 288 sec->shdr.sh_addralign = elf_xword_to_cpu(shdr.sh_addralign); 289 sec->shdr.sh_entsize = elf_xword_to_cpu(shdr.sh_entsize); 290 if (sec->shdr.sh_link < ehdr.e_shnum) 291 sec->link = &secs[sec->shdr.sh_link]; 292 } 293 } 294 295 static void read_strtabs(FILE *fp) 296 { 297 int i; 298 299 for (i = 0; i < ehdr.e_shnum; i++) { 300 struct section *sec = &secs[i]; 301 302 if (sec->shdr.sh_type != SHT_STRTAB) 303 continue; 304 305 sec->strtab = malloc(sec->shdr.sh_size); 306 if (!sec->strtab) 307 die("malloc of %d bytes for strtab failed\n", 308 sec->shdr.sh_size); 309 310 if (fseek(fp, sec->shdr.sh_offset, SEEK_SET) < 0) 311 die("Seek to %d failed: %s\n", 312 sec->shdr.sh_offset, strerror(errno)); 313 314 if (fread(sec->strtab, 1, sec->shdr.sh_size, fp) != 315 sec->shdr.sh_size) 316 die("Cannot read symbol table: %s\n", strerror(errno)); 317 } 318 } 319 320 static void read_symtabs(FILE *fp) 321 { 322 int i, j; 323 324 for (i = 0; i < ehdr.e_shnum; i++) { 325 struct section *sec = &secs[i]; 326 if (sec->shdr.sh_type != SHT_SYMTAB) 327 continue; 328 329 sec->symtab = malloc(sec->shdr.sh_size); 330 if (!sec->symtab) 331 die("malloc of %d bytes for symtab failed\n", 332 sec->shdr.sh_size); 333 334 if (fseek(fp, sec->shdr.sh_offset, SEEK_SET) < 0) 335 die("Seek to %d failed: %s\n", 336 sec->shdr.sh_offset, strerror(errno)); 337 338 if (fread(sec->symtab, 1, sec->shdr.sh_size, fp) != 339 sec->shdr.sh_size) 340 die("Cannot read symbol table: %s\n", strerror(errno)); 341 342 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Sym); j++) { 343 Elf_Sym *sym = &sec->symtab[j]; 344 345 sym->st_name = elf_word_to_cpu(sym->st_name); 346 sym->st_value = elf_addr_to_cpu(sym->st_value); 347 sym->st_size = elf_xword_to_cpu(sym->st_size); 348 sym->st_shndx = elf_half_to_cpu(sym->st_shndx); 349 } 350 } 351 } 352 353 static void read_relocs(FILE *fp) 354 { 355 static unsigned long base; 356 int i, j; 357 358 if (!base) { 359 struct section *sec = sec_lookup(".text"); 360 361 if (!sec) 362 die("Could not find .text section\n"); 363 364 base = sec->shdr.sh_addr; 365 } 366 367 for (i = 0; i < ehdr.e_shnum; i++) { 368 struct section *sec = &secs[i]; 369 370 if (sec->shdr.sh_type != SHT_REL_TYPE) 371 continue; 372 373 sec->reltab = malloc(sec->shdr.sh_size); 374 if (!sec->reltab) 375 die("malloc of %d bytes for relocs failed\n", 376 sec->shdr.sh_size); 377 378 if (fseek(fp, sec->shdr.sh_offset, SEEK_SET) < 0) 379 die("Seek to %d failed: %s\n", 380 sec->shdr.sh_offset, strerror(errno)); 381 382 if (fread(sec->reltab, 1, sec->shdr.sh_size, fp) != 383 sec->shdr.sh_size) 384 die("Cannot read symbol table: %s\n", strerror(errno)); 385 386 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) { 387 Elf_Rel *rel = &sec->reltab[j]; 388 389 rel->r_offset = elf_addr_to_cpu(rel->r_offset); 390 /* Set offset into kernel image */ 391 rel->r_offset -= base; 392 #if (ELF_BITS == 32) 393 rel->r_info = elf_xword_to_cpu(rel->r_info); 394 #else 395 /* Convert MIPS64 RELA format - only the symbol 396 * index needs converting to native endianness 397 */ 398 rel->r_info = rel->r_info; 399 ELF_R_SYM(rel->r_info) = elf32_to_cpu(ELF_R_SYM(rel->r_info)); 400 #endif 401 #if (SHT_REL_TYPE == SHT_RELA) 402 rel->r_addend = elf_xword_to_cpu(rel->r_addend); 403 #endif 404 } 405 } 406 } 407 408 static void remove_relocs(FILE *fp) 409 { 410 int i; 411 Elf_Shdr shdr; 412 413 for (i = 0; i < ehdr.e_shnum; i++) { 414 struct section *sec = &secs[i]; 415 416 if (sec->shdr.sh_type != SHT_REL_TYPE) 417 continue; 418 419 if (fseek(fp, sec->shdr_offset, SEEK_SET) < 0) 420 die("Seek to %d failed: %s\n", 421 sec->shdr_offset, strerror(errno)); 422 423 if (fread(&shdr, sizeof(shdr), 1, fp) != 1) 424 die("Cannot read ELF section headers %d/%d: %s\n", 425 i, ehdr.e_shnum, strerror(errno)); 426 427 /* Set relocation section size to 0, effectively removing it. 428 * This is necessary due to lack of support for relocations 429 * in objcopy when creating 32bit elf from 64bit elf. 430 */ 431 shdr.sh_size = 0; 432 433 if (fseek(fp, sec->shdr_offset, SEEK_SET) < 0) 434 die("Seek to %d failed: %s\n", 435 sec->shdr_offset, strerror(errno)); 436 437 if (fwrite(&shdr, sizeof(shdr), 1, fp) != 1) 438 die("Cannot write ELF section headers %d/%d: %s\n", 439 i, ehdr.e_shnum, strerror(errno)); 440 } 441 } 442 443 static void add_reloc(struct relocs *r, uint32_t offset, unsigned type) 444 { 445 /* Relocation representation in binary table: 446 * |76543210|76543210|76543210|76543210| 447 * | Type | offset from _text >> 2 | 448 */ 449 offset >>= 2; 450 if (offset > 0x00FFFFFF) 451 die("Kernel image exceeds maximum size for relocation!\n"); 452 453 offset = (offset & 0x00FFFFFF) | ((type & 0xFF) << 24); 454 455 if (r->count == r->size) { 456 unsigned long newsize = r->size + 50000; 457 void *mem = realloc(r->offset, newsize * sizeof(r->offset[0])); 458 459 if (!mem) 460 die("realloc failed\n"); 461 462 r->offset = mem; 463 r->size = newsize; 464 } 465 r->offset[r->count++] = offset; 466 } 467 468 static void walk_relocs(int (*process)(struct section *sec, Elf_Rel *rel, 469 Elf_Sym *sym, const char *symname)) 470 { 471 int i; 472 struct section *extab_sec = sec_lookup("__ex_table"); 473 int extab_index = extab_sec ? extab_sec - secs : -1; 474 475 /* Walk through the relocations */ 476 for (i = 0; i < ehdr.e_shnum; i++) { 477 char *sym_strtab; 478 Elf_Sym *sh_symtab; 479 struct section *sec_applies, *sec_symtab; 480 int j; 481 struct section *sec = &secs[i]; 482 483 if (sec->shdr.sh_type != SHT_REL_TYPE) 484 continue; 485 486 if (sec->shdr.sh_info == extab_index) 487 continue; 488 489 sec_symtab = sec->link; 490 sec_applies = &secs[sec->shdr.sh_info]; 491 if (!(sec_applies->shdr.sh_flags & SHF_ALLOC)) 492 continue; 493 494 sh_symtab = sec_symtab->symtab; 495 sym_strtab = sec_symtab->link->strtab; 496 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) { 497 Elf_Rel *rel = &sec->reltab[j]; 498 Elf_Sym *sym = &sh_symtab[ELF_R_SYM(rel->r_info)]; 499 const char *symname = sym_name(sym_strtab, sym); 500 501 process(sec, rel, sym, symname); 502 } 503 } 504 } 505 506 static int do_reloc(struct section *sec, Elf_Rel *rel, Elf_Sym *sym, 507 const char *symname) 508 { 509 unsigned r_type = ELF_R_TYPE(rel->r_info); 510 unsigned bind = ELF_ST_BIND(sym->st_info); 511 512 if ((bind == STB_WEAK) && (sym->st_value == 0)) { 513 /* Don't relocate weak symbols without a target */ 514 return 0; 515 } 516 517 if (regex_skip_reloc(symname)) 518 return 0; 519 520 switch (r_type) { 521 case R_MIPS_NONE: 522 case R_MIPS_REL32: 523 case R_MIPS_PC16: 524 case R_MIPS_PC21_S2: 525 case R_MIPS_PC26_S2: 526 case R_MIPS_PC32: 527 /* 528 * NONE can be ignored and PC relative relocations don't 529 * need to be adjusted. 530 */ 531 case R_MIPS_HIGHEST: 532 case R_MIPS_HIGHER: 533 /* We support relocating within the same 4Gb segment only, 534 * thus leaving the top 32bits unchanged 535 */ 536 case R_MIPS_LO16: 537 /* We support relocating by 64k jumps only 538 * thus leaving the bottom 16bits unchanged 539 */ 540 break; 541 542 case R_MIPS_64: 543 case R_MIPS_32: 544 case R_MIPS_26: 545 case R_MIPS_HI16: 546 add_reloc(&relocs, rel->r_offset, r_type); 547 break; 548 549 default: 550 die("Unsupported relocation type: %s (%d)\n", 551 rel_type(r_type), r_type); 552 break; 553 } 554 555 return 0; 556 } 557 558 static int write_reloc_as_bin(uint32_t v, FILE *f) 559 { 560 unsigned char buf[4]; 561 562 v = cpu_to_elf32(v); 563 564 memcpy(buf, &v, sizeof(uint32_t)); 565 return fwrite(buf, 1, 4, f); 566 } 567 568 static int write_reloc_as_text(uint32_t v, FILE *f) 569 { 570 int res; 571 572 res = fprintf(f, "\t.long 0x%08"PRIx32"\n", v); 573 if (res < 0) 574 return res; 575 else 576 return sizeof(uint32_t); 577 } 578 579 static void emit_relocs(int as_text, int as_bin, FILE *outf) 580 { 581 int i; 582 int (*write_reloc)(uint32_t, FILE *) = write_reloc_as_bin; 583 int size = 0; 584 int size_reserved; 585 struct section *sec_reloc; 586 587 sec_reloc = sec_lookup(".data.reloc"); 588 if (!sec_reloc) 589 die("Could not find relocation section\n"); 590 591 size_reserved = sec_reloc->shdr.sh_size; 592 593 /* Collect up the relocations */ 594 walk_relocs(do_reloc); 595 596 /* Print the relocations */ 597 if (as_text) { 598 /* Print the relocations in a form suitable that 599 * gas will like. 600 */ 601 printf(".section \".data.reloc\",\"a\"\n"); 602 printf(".balign 4\n"); 603 /* Output text to stdout */ 604 write_reloc = write_reloc_as_text; 605 outf = stdout; 606 } else if (as_bin) { 607 /* Output raw binary to stdout */ 608 outf = stdout; 609 } else { 610 /* Seek to offset of the relocation section. 611 * Each relocation is then written into the 612 * vmlinux kernel image. 613 */ 614 if (fseek(outf, sec_reloc->shdr.sh_offset, SEEK_SET) < 0) { 615 die("Seek to %d failed: %s\n", 616 sec_reloc->shdr.sh_offset, strerror(errno)); 617 } 618 } 619 620 for (i = 0; i < relocs.count; i++) 621 size += write_reloc(relocs.offset[i], outf); 622 623 /* Print a stop, but only if we've actually written some relocs */ 624 if (size) 625 size += write_reloc(0, outf); 626 627 if (size > size_reserved) 628 /* Die, but suggest a value for CONFIG_RELOCATION_TABLE_SIZE 629 * which will fix this problem and allow a bit of headroom 630 * if more kernel features are enabled 631 */ 632 die("Relocations overflow available space!\n" \ 633 "Please adjust CONFIG_RELOCATION_TABLE_SIZE " \ 634 "to at least 0x%08x\n", (size + 0x1000) & ~0xFFF); 635 } 636 637 /* 638 * As an aid to debugging problems with different linkers 639 * print summary information about the relocs. 640 * Since different linkers tend to emit the sections in 641 * different orders we use the section names in the output. 642 */ 643 static int do_reloc_info(struct section *sec, Elf_Rel *rel, ElfW(Sym) *sym, 644 const char *symname) 645 { 646 printf("%16s 0x%08x %16s %40s %16s\n", 647 sec_name(sec->shdr.sh_info), 648 (unsigned int)rel->r_offset, 649 rel_type(ELF_R_TYPE(rel->r_info)), 650 symname, 651 sec_name(sym->st_shndx)); 652 return 0; 653 } 654 655 static void print_reloc_info(void) 656 { 657 printf("%16s %10s %16s %40s %16s\n", 658 "reloc section", 659 "offset", 660 "reloc type", 661 "symbol", 662 "symbol section"); 663 walk_relocs(do_reloc_info); 664 } 665 666 #if ELF_BITS == 64 667 # define process process_64 668 #else 669 # define process process_32 670 #endif 671 672 void process(FILE *fp, int as_text, int as_bin, 673 int show_reloc_info, int keep_relocs) 674 { 675 regex_init(); 676 read_ehdr(fp); 677 read_shdrs(fp); 678 read_strtabs(fp); 679 read_symtabs(fp); 680 read_relocs(fp); 681 if (show_reloc_info) { 682 print_reloc_info(); 683 return; 684 } 685 emit_relocs(as_text, as_bin, fp); 686 if (!keep_relocs) 687 remove_relocs(fp); 688 } 689