1 /* Internal interfaces for libelf. 2 Copyright (C) 1998-2010 Red Hat, Inc. 3 This file is part of elfutils. 4 Contributed by Ulrich Drepper <drepper (at) redhat.com>, 1998. 5 6 This file is free software; you can redistribute it and/or modify 7 it under the terms of either 8 9 * the GNU Lesser General Public License as published by the Free 10 Software Foundation; either version 3 of the License, or (at 11 your option) any later version 12 13 or 14 15 * the GNU General Public License as published by the Free 16 Software Foundation; either version 2 of the License, or (at 17 your option) any later version 18 19 or both in parallel, as here. 20 21 elfutils is distributed in the hope that it will be useful, but 22 WITHOUT ANY WARRANTY; without even the implied warranty of 23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 24 General Public License for more details. 25 26 You should have received copies of the GNU General Public License and 27 the GNU Lesser General Public License along with this program. If 28 not, see <http://www.gnu.org/licenses/>. */ 29 30 #ifndef _LIBELFP_H 31 #define _LIBELFP_H 1 32 33 #ifdef HAVE_CONFIG_H 34 # include <config.h> 35 #endif 36 37 #include <ar.h> 38 #include <gelf.h> 39 40 #include <errno.h> 41 #include <stdint.h> 42 #include <stdio.h> 43 #include <string.h> 44 45 /* gettext helper macros. */ 46 #define _(Str) dgettext ("elfutils", Str) 47 48 49 /* Helper Macros to write 32 bit and 64 bit functions. */ 50 #define __elfw2_(Bits, Name) __elf##Bits##_##Name 51 #define elfw2_(Bits, Name) elf##Bits##_##Name 52 #define ElfW2_(Bits, Name) Elf##Bits##_##Name 53 #define ELFW2_(Bits, Name) ELF##Bits##_##Name 54 #define ELFW_(Name, Bits) Name##Bits 55 #define __elfw2(Bits, Name) __elfw2_(Bits, Name) 56 #define elfw2(Bits, Name) elfw2_(Bits, Name) 57 #define ElfW2(Bits, Name) ElfW2_(Bits, Name) 58 #define ELFW2(Bits, Name) ELFW2_(Bits, Name) 59 #define ELFW(Name, Bits) ELFW_(Name, Bits) 60 61 62 /* Sizes of the external types, for 32 bits objects. */ 63 #define ELF32_FSZ_ADDR 4 64 #define ELF32_FSZ_OFF 4 65 #define ELF32_FSZ_HALF 2 66 #define ELF32_FSZ_WORD 4 67 #define ELF32_FSZ_SWORD 4 68 #define ELF32_FSZ_XWORD 8 69 #define ELF32_FSZ_SXWORD 8 70 71 /* Same for 64 bits objects. */ 72 #define ELF64_FSZ_ADDR 8 73 #define ELF64_FSZ_OFF 8 74 #define ELF64_FSZ_HALF 2 75 #define ELF64_FSZ_WORD 4 76 #define ELF64_FSZ_SWORD 4 77 #define ELF64_FSZ_XWORD 8 78 #define ELF64_FSZ_SXWORD 8 79 80 81 /* This is an extension of the ELF_F_* enumeration. The values here are 82 not part of the library interface, they are only used internally. */ 83 enum 84 { 85 ELF_F_MMAPPED = 0x40, 86 ELF_F_MALLOCED = 0x80, 87 ELF_F_FILEDATA = 0x100 88 }; 89 90 91 /* Get definition of all the external types. */ 92 #include "exttypes.h" 93 94 95 /* Error values. */ 96 enum 97 { 98 ELF_E_NOERROR = 0, 99 ELF_E_UNKNOWN_ERROR, 100 ELF_E_UNKNOWN_VERSION, 101 ELF_E_UNKNOWN_TYPE, 102 ELF_E_INVALID_HANDLE, 103 ELF_E_SOURCE_SIZE, 104 ELF_E_DEST_SIZE, 105 ELF_E_INVALID_ENCODING, 106 ELF_E_NOMEM, 107 ELF_E_INVALID_FILE, 108 ELF_E_INVALID_OP, 109 ELF_E_NO_VERSION, 110 ELF_E_INVALID_CMD, 111 ELF_E_RANGE, 112 ELF_E_ARCHIVE_FMAG, 113 ELF_E_INVALID_ARCHIVE, 114 ELF_E_NO_ARCHIVE, 115 ELF_E_NO_INDEX, 116 ELF_E_READ_ERROR, 117 ELF_E_WRITE_ERROR, 118 ELF_E_INVALID_CLASS, 119 ELF_E_INVALID_INDEX, 120 ELF_E_INVALID_OPERAND, 121 ELF_E_INVALID_SECTION, 122 ELF_E_INVALID_COMMAND, 123 ELF_E_WRONG_ORDER_EHDR, 124 ELF_E_FD_DISABLED, 125 ELF_E_FD_MISMATCH, 126 ELF_E_OFFSET_RANGE, 127 ELF_E_NOT_NUL_SECTION, 128 ELF_E_DATA_MISMATCH, 129 ELF_E_INVALID_SECTION_HEADER, 130 ELF_E_INVALID_DATA, 131 ELF_E_DATA_ENCODING, 132 ELF_E_SECTION_TOO_SMALL, 133 ELF_E_INVALID_ALIGN, 134 ELF_E_INVALID_SHENTSIZE, 135 ELF_E_UPDATE_RO, 136 ELF_E_NOFILE, 137 ELF_E_GROUP_NOT_REL, 138 ELF_E_INVALID_PHDR, 139 ELF_E_NO_PHDR, 140 ELF_E_INVALID_OFFSET, 141 /* Keep this as the last entry. */ 142 ELF_E_NUM 143 }; 144 145 146 /* The visible `Elf_Data' type is not sufficent for some operations due 147 to a misdesigned interface. Extend it for internal purposes. */ 148 typedef struct 149 { 150 Elf_Data d; 151 Elf_Scn *s; 152 } Elf_Data_Scn; 153 154 155 /* List of `Elf_Data' descriptors. This is what makes up the section 156 contents. */ 157 typedef struct Elf_Data_List 158 { 159 /* `data' *must* be the first element in the struct. */ 160 Elf_Data_Scn data; 161 struct Elf_Data_List *next; 162 int flags; 163 } Elf_Data_List; 164 165 166 /* Descriptor for ELF section. */ 167 struct Elf_Scn 168 { 169 /* We have to distinguish several different situations: 170 171 1. the section is user created. Therefore there is no file or memory 172 region to read the data from. Here we have two different subcases: 173 174 a) data was not yet added (before the first `elf_newdata' call) 175 176 b) at least one data set is available 177 178 2. this is a section from a file/memory region. We have to read the 179 current content in one data block if we have to. But we don't 180 read the data until it is necessary. So we have the subcases: 181 182 a) the section in the file has size zero (for whatever reason) 183 184 b) the data of the file is not (yet) read 185 186 c) the data is read and available. 187 188 In addition to this we have different data sets, the raw and the converted 189 data. This distinction only exists for the data read from the file. 190 All user-added data set (all but the first when read from the file or 191 all of them for user-create sections) are the same in both formats. 192 We don't create the converted data before it is necessary. 193 194 The `data_read' element signals whether data is available in the 195 raw format. 196 197 If there is data from the file/memory region or if read one data 198 set is added the `rawdata_list_read' pointer in non-NULL and points 199 to the last filled data set. `raw_datalist_rear' is therefore NULL 200 only if there is no data set at all. 201 202 This so far allows to distinguish all but two cases (given that the 203 `rawdata_list' and `data_list' entries are initialized to zero) is 204 between not yet loaded data from the file/memory region and a section 205 with zero size and type ELF_T_BYTE. */ 206 Elf_Data_List data_list; /* List of data buffers. */ 207 Elf_Data_List *data_list_rear; /* Pointer to the rear of the data list. */ 208 209 Elf_Data_Scn rawdata; /* Uninterpreted data of the section. */ 210 211 int data_read; /* Nonzero if the section was created by the 212 user or if the data from the file/memory 213 is read. */ 214 int shndx_index; /* Index of the extended section index 215 table for this symbol table (if this 216 section is a symbol table). */ 217 218 size_t index; /* Index of this section. */ 219 struct Elf *elf; /* The underlying ELF file. */ 220 221 union 222 { 223 Elf32_Shdr *e32; /* Pointer to 32bit section header. */ 224 Elf64_Shdr *e64; /* Pointer to 64bit section header. */ 225 } shdr; 226 227 unsigned int shdr_flags; /* Section header modified? */ 228 unsigned int flags; /* Section changed in size? */ 229 230 char *rawdata_base; /* The unmodified data of the section. */ 231 char *data_base; /* The converted data of the section. */ 232 233 struct Elf_ScnList *list; /* Pointer to the section list element the 234 data is in. */ 235 }; 236 237 238 /* List of section. */ 239 typedef struct Elf_ScnList 240 { 241 unsigned int cnt; /* Number of elements of 'data' used. */ 242 unsigned int max; /* Number of elements of 'data' allocated. */ 243 struct Elf_ScnList *next; /* Next block of sections. */ 244 struct Elf_Scn data[0]; /* Section data. */ 245 } Elf_ScnList; 246 247 248 /* elf_getdata_rawchunk result. */ 249 typedef struct Elf_Data_Chunk 250 { 251 Elf_Data_Scn data; 252 union 253 { 254 Elf_Scn dummy_scn; 255 struct Elf_Data_Chunk *next; 256 }; 257 } Elf_Data_Chunk; 258 259 260 /* The ELF descriptor. */ 261 struct Elf 262 { 263 /* Address to which the file was mapped. NULL if not mapped. */ 264 void *map_address; 265 266 /* When created for an archive member this points to the descriptor 267 for the archive. */ 268 Elf *parent; 269 Elf *next; /* Used in list of archive descriptors. */ 270 271 /* What kind of file is underneath (ELF file, archive...). */ 272 Elf_Kind kind; 273 274 /* Command used to create this descriptor. */ 275 Elf_Cmd cmd; 276 277 /* The binary class. */ 278 unsigned int class; 279 280 /* The used file descriptor. -1 if not available anymore. */ 281 int fildes; 282 283 /* Offset in the archive this file starts or zero. */ 284 off_t start_offset; 285 286 /* Size of the file in the archive or the entire file size, or ~0 287 for an (yet) unknown size. */ 288 size_t maximum_size; 289 290 /* Describes the way the memory was allocated and if the dirty bit is 291 signalled it means that the whole file has to be rewritten since 292 the layout changed. */ 293 int flags; 294 295 /* Reference counting for the descriptor. */ 296 int ref_count; 297 298 /* Lock to handle multithreaded programs. */ 299 rwlock_define (,lock); 300 301 union 302 { 303 struct 304 { 305 /* The next fields are only useful when testing for ==/!= NULL. */ 306 void *ehdr; 307 void *shdr; 308 void *phdr; 309 310 Elf_ScnList *scns_last; /* Last element in the section list. 311 If NULL the data has not yet been 312 read from the file. */ 313 Elf_Data_Chunk *rawchunks; /* List of elf_getdata_rawchunk results. */ 314 unsigned int scnincr; /* Number of sections allocate the last 315 time. */ 316 int ehdr_flags; /* Flags (dirty) for ELF header. */ 317 int phdr_flags; /* Flags (dirty|malloc) for program header. */ 318 int shdr_malloced; /* Nonzero if shdr array was allocated. */ 319 off64_t sizestr_offset; /* Offset of the size string in the parent 320 if this is an archive member. */ 321 } elf; 322 323 struct 324 { 325 Elf32_Ehdr *ehdr; /* Pointer to the ELF header. This is 326 never malloced. */ 327 Elf32_Shdr *shdr; /* Used when reading from a file. */ 328 Elf32_Phdr *phdr; /* Pointer to the program header array. */ 329 Elf_ScnList *scns_last; /* Last element in the section list. 330 If NULL the data has not yet been 331 read from the file. */ 332 Elf_Data_Chunk *rawchunks; /* List of elf_getdata_rawchunk results. */ 333 unsigned int scnincr; /* Number of sections allocate the last 334 time. */ 335 int ehdr_flags; /* Flags (dirty) for ELF header. */ 336 int phdr_flags; /* Flags (dirty|malloc) for program header. */ 337 int shdr_malloced; /* Nonzero if shdr array was allocated. */ 338 off64_t sizestr_offset; /* Offset of the size string in the parent 339 if this is an archive member. */ 340 Elf32_Ehdr ehdr_mem; /* Memory used for ELF header when not 341 mmaped. */ 342 char __e32scnspad[sizeof (Elf64_Ehdr) - sizeof (Elf32_Ehdr)]; 343 344 /* The section array. */ 345 Elf_ScnList scns; 346 } elf32; 347 348 struct 349 { 350 Elf64_Ehdr *ehdr; /* Pointer to the ELF header. This is 351 never malloced. */ 352 Elf64_Shdr *shdr; /* Used when reading from a file. */ 353 Elf64_Phdr *phdr; /* Pointer to the program header array. */ 354 Elf_ScnList *scns_last; /* Last element in the section list. 355 If NULL the data has not yet been 356 read from the file. */ 357 Elf_Data_Chunk *rawchunks; /* List of elf_getdata_rawchunk results. */ 358 unsigned int scnincr; /* Number of sections allocate the last 359 time. */ 360 int ehdr_flags; /* Flags (dirty) for ELF header. */ 361 int phdr_flags; /* Flags (dirty|malloc) for program header. */ 362 int shdr_malloced; /* Nonzero if shdr array was allocated. */ 363 off64_t sizestr_offset; /* Offset of the size string in the parent 364 if this is an archive member. */ 365 Elf64_Ehdr ehdr_mem; /* Memory used for ELF header when not 366 mmaped. */ 367 368 /* The section array. */ 369 Elf_ScnList scns; 370 } elf64; 371 372 struct 373 { 374 Elf *children; /* List of all descriptors for this archive. */ 375 Elf_Arsym *ar_sym; /* Symbol table returned by elf_getarsym. */ 376 size_t ar_sym_num; /* Number of entries in `ar_sym'. */ 377 char *long_names; /* If no index is available but long names 378 are used this elements points to the data.*/ 379 size_t long_names_len; /* Length of the long name table. */ 380 off_t offset; /* Offset in file we are currently at. 381 elf_next() advances this to the next 382 member of the archive. */ 383 Elf_Arhdr elf_ar_hdr; /* Structure returned by 'elf_getarhdr'. */ 384 struct ar_hdr ar_hdr; /* Header read from file. */ 385 char ar_name[16]; /* NUL terminated ar_name of elf_ar_hdr. */ 386 char raw_name[17]; /* This is a buffer for the NUL terminated 387 named raw_name used in the elf_ar_hdr. */ 388 } ar; 389 } state; 390 391 /* There absolutely never must be anything following the union. */ 392 }; 393 394 /* Type of the conversion functions. These functions will convert the 395 byte order. */ 396 typedef void (*xfct_t) (void *, const void *, size_t, int); 397 398 /* The table with the function pointers. */ 399 extern const xfct_t __elf_xfctstom[EV_NUM - 1][EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] attribute_hidden; 400 extern const xfct_t __elf_xfctstof[EV_NUM - 1][EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] attribute_hidden; 401 402 403 /* Array with sizes of the external types indexed by ELF version, binary 404 class, and type. */ 405 extern const size_t __libelf_type_sizes[EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] attribute_hidden; 406 /* We often have to access the size for a type in the current version. */ 407 #if EV_NUM != 2 408 # define elf_typesize(class,type,n) \ 409 elfw2(class,fsize) (type, n, __libelf_version) 410 #else 411 # define elf_typesize(class,type,n) \ 412 (__libelf_type_sizes[EV_CURRENT - 1][ELFW(ELFCLASS,class) - 1][type] * n) 413 #endif 414 415 /* Currently selected version of the ELF specification. */ 416 extern unsigned int __libelf_version attribute_hidden; 417 418 /* The byte value used for filling gaps. */ 419 extern int __libelf_fill_byte attribute_hidden; 420 421 /* Nonzero if the version was set. */ 422 extern int __libelf_version_initialized attribute_hidden; 423 424 /* Index for __libelf_type_sizes et al. */ 425 #if EV_NUM == 2 426 # define LIBELF_EV_IDX 0 427 #else 428 # define LIBELF_EV_IDX (__libelf_version - 1) 429 #endif 430 431 #if !ALLOW_UNALIGNED 432 /* Array with alignment requirements of the internal types indexed by ELF 433 version, binary class, and type. */ 434 extern const uint_fast8_t __libelf_type_aligns[EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] attribute_hidden; 435 # define __libelf_type_align(class, type) \ 436 (__libelf_type_aligns[LIBELF_EV_IDX][class - 1][type] ?: 1) 437 #else 438 # define __libelf_type_align(class, type) 1 439 #endif 440 441 /* The libelf API does not have such a function but it is still useful. 442 Get the memory size for the given type. 443 444 These functions cannot be marked internal since they are aliases 445 of the export elfXX_fsize functions.*/ 446 extern size_t __elf32_msize (Elf_Type __type, size_t __count, 447 unsigned int __version); 448 extern size_t __elf64_msize (Elf_Type __type, size_t __count, 449 unsigned int __version); 450 451 452 /* Create Elf descriptor from memory image. */ 453 extern Elf *__libelf_read_mmaped_file (int fildes, void *map_address, 454 off_t offset, size_t maxsize, 455 Elf_Cmd cmd, Elf *parent) 456 internal_function; 457 458 /* Set error value. */ 459 extern void __libelf_seterrno (int value) internal_function; 460 461 /* Get the next archive header. */ 462 extern int __libelf_next_arhdr_wrlock (Elf *elf) internal_function; 463 464 /* Read all of the file associated with the descriptor. */ 465 extern char *__libelf_readall (Elf *elf) internal_function; 466 467 /* Read the complete section table and convert the byte order if necessary. */ 468 extern int __libelf_readsections (Elf *elf) internal_function; 469 470 /* Store the information for the raw data in the `rawdata_list' element. */ 471 extern int __libelf_set_rawdata (Elf_Scn *scn) internal_function; 472 extern int __libelf_set_rawdata_wrlock (Elf_Scn *scn) internal_function; 473 474 475 /* Helper functions for elf_update. */ 476 extern off_t __elf32_updatenull_wrlock (Elf *elf, int *change_bop, 477 size_t shnum) internal_function; 478 extern off_t __elf64_updatenull_wrlock (Elf *elf, int *change_bop, 479 size_t shnum) internal_function; 480 481 extern int __elf32_updatemmap (Elf *elf, int change_bo, size_t shnum) 482 internal_function; 483 extern int __elf64_updatemmap (Elf *elf, int change_bo, size_t shnum) 484 internal_function; 485 extern int __elf32_updatefile (Elf *elf, int change_bo, size_t shnum) 486 internal_function; 487 extern int __elf64_updatefile (Elf *elf, int change_bo, size_t shnum) 488 internal_function; 489 490 491 /* Alias for exported functions to avoid PLT entries, and 492 rdlock/wrlock variants of these functions. */ 493 extern int __elf_end_internal (Elf *__elf) attribute_hidden; 494 extern Elf *__elf_begin_internal (int __fildes, Elf_Cmd __cmd, Elf *__ref) 495 attribute_hidden; 496 extern Elf32_Ehdr *__elf32_getehdr_wrlock (Elf *__elf) internal_function; 497 extern Elf64_Ehdr *__elf64_getehdr_wrlock (Elf *__elf) internal_function; 498 extern Elf32_Ehdr *__elf32_newehdr_internal (Elf *__elf) attribute_hidden; 499 extern Elf64_Ehdr *__elf64_newehdr_internal (Elf *__elf) attribute_hidden; 500 extern Elf32_Phdr *__elf32_getphdr_internal (Elf *__elf) attribute_hidden; 501 extern Elf64_Phdr *__elf64_getphdr_internal (Elf *__elf) attribute_hidden; 502 extern Elf32_Phdr *__elf32_getphdr_wrlock (Elf *__elf) attribute_hidden; 503 extern Elf64_Phdr *__elf64_getphdr_wrlock (Elf *__elf) attribute_hidden; 504 extern Elf32_Phdr *__elf32_newphdr_internal (Elf *__elf, size_t __cnt) 505 attribute_hidden; 506 extern Elf64_Phdr *__elf64_newphdr_internal (Elf *__elf, size_t __cnt) 507 attribute_hidden; 508 extern Elf_Scn *__elf32_offscn_internal (Elf *__elf, Elf32_Off __offset) 509 attribute_hidden; 510 extern Elf_Scn *__elf64_offscn_internal (Elf *__elf, Elf64_Off __offset) 511 attribute_hidden; 512 extern int __elf_getphdrnum_rdlock (Elf *__elf, size_t *__dst) 513 internal_function; 514 extern int __elf_getshdrnum_rdlock (Elf *__elf, size_t *__dst) 515 internal_function; 516 extern int __elf_getshdrstrndx_internal (Elf *__elf, size_t *__dst) 517 attribute_hidden; 518 extern Elf32_Shdr *__elf32_getshdr_rdlock (Elf_Scn *__scn) internal_function; 519 extern Elf64_Shdr *__elf64_getshdr_rdlock (Elf_Scn *__scn) internal_function; 520 extern Elf32_Shdr *__elf32_getshdr_wrlock (Elf_Scn *__scn) internal_function; 521 extern Elf64_Shdr *__elf64_getshdr_wrlock (Elf_Scn *__scn) internal_function; 522 extern Elf_Scn *__elf_getscn_internal (Elf *__elf, size_t __index) 523 attribute_hidden; 524 extern Elf_Scn *__elf_nextscn_internal (Elf *__elf, Elf_Scn *__scn) 525 attribute_hidden; 526 extern int __elf_scnshndx_internal (Elf_Scn *__scn) attribute_hidden; 527 extern Elf_Data *__elf_getdata_internal (Elf_Scn *__scn, Elf_Data *__data) 528 attribute_hidden; 529 extern Elf_Data *__elf_getdata_rdlock (Elf_Scn *__scn, Elf_Data *__data) 530 internal_function; 531 extern Elf_Data *__elf_rawdata_internal (Elf_Scn *__scn, Elf_Data *__data) 532 attribute_hidden; 533 extern char *__elf_strptr_internal (Elf *__elf, size_t __index, 534 size_t __offset) attribute_hidden; 535 extern Elf_Data *__elf32_xlatetom_internal (Elf_Data *__dest, 536 const Elf_Data *__src, 537 unsigned int __encode) 538 attribute_hidden; 539 extern Elf_Data *__elf64_xlatetom_internal (Elf_Data *__dest, 540 const Elf_Data *__src, 541 unsigned int __encode) 542 attribute_hidden; 543 extern Elf_Data *__elf32_xlatetof_internal (Elf_Data *__dest, 544 const Elf_Data *__src, 545 unsigned int __encode) 546 attribute_hidden; 547 extern Elf_Data *__elf64_xlatetof_internal (Elf_Data *__dest, 548 const Elf_Data *__src, 549 unsigned int __encode) 550 attribute_hidden; 551 extern unsigned int __elf_version_internal (unsigned int __version) 552 attribute_hidden; 553 extern unsigned long int __elf_hash_internal (const char *__string) 554 __attribute__ ((__pure__, visibility ("hidden"))); 555 extern long int __elf32_checksum_internal (Elf *__elf) attribute_hidden; 556 extern long int __elf64_checksum_internal (Elf *__elf) attribute_hidden; 557 558 559 extern GElf_Ehdr *__gelf_getehdr_rdlock (Elf *__elf, GElf_Ehdr *__dest) 560 internal_function; 561 extern size_t __gelf_fsize_internal (Elf *__elf, Elf_Type __type, 562 size_t __count, unsigned int __version) 563 attribute_hidden; 564 extern GElf_Shdr *__gelf_getshdr_internal (Elf_Scn *__scn, GElf_Shdr *__dst) 565 attribute_hidden; 566 extern GElf_Sym *__gelf_getsym_internal (Elf_Data *__data, int __ndx, 567 GElf_Sym *__dst) attribute_hidden; 568 569 570 extern uint32_t __libelf_crc32 (uint32_t crc, unsigned char *buf, size_t len) 571 attribute_hidden; 572 573 574 /* We often have to update a flag iff a value changed. Make this 575 convenient. */ 576 #define update_if_changed(var, exp, flag) \ 577 do { \ 578 __typeof__ (var) *_var = &(var); \ 579 __typeof__ (exp) _exp = (exp); \ 580 if (*_var != _exp) \ 581 { \ 582 *_var = _exp; \ 583 (flag) |= ELF_F_DIRTY; \ 584 } \ 585 } while (0) 586 587 /* Align offset to 4 bytes as needed for note name and descriptor data. */ 588 #define NOTE_ALIGN(n) (((n) + 3) & -4U) 589 590 /* Convenience macro. */ 591 #define INVALID_NDX(ndx, type, data) \ 592 unlikely ((data)->d_size / sizeof (type) <= (unsigned int) (ndx)) 593 594 #endif /* libelfP.h */ 595
