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