arch/mips/include/asm/elf.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Much of this is taken from binutils and GNU libc ...
   7  */
   8 #ifndef _ASM_ELF_H
   9 #define _ASM_ELF_H
  10
  11 #include <linux/auxvec.h>
  12 #include <linux/fs.h>
  13 #include <uapi/linux/elf.h>
  14
  15 #include <asm/current.h>
  16
  17 /* ELF header e_flags defines. */
  18 /* MIPS architecture level. */
  19 #define EF_MIPS_ARCH_1          0x00000000      /* -mips1 code.  */
  20 #define EF_MIPS_ARCH_2          0x10000000      /* -mips2 code.  */
  21 #define EF_MIPS_ARCH_3          0x20000000      /* -mips3 code.  */
  22 #define EF_MIPS_ARCH_4          0x30000000      /* -mips4 code.  */
  23 #define EF_MIPS_ARCH_5          0x40000000      /* -mips5 code.  */
  24 #define EF_MIPS_ARCH_32         0x50000000      /* MIPS32 code.  */
  25 #define EF_MIPS_ARCH_64         0x60000000      /* MIPS64 code.  */
  26 #define EF_MIPS_ARCH_32R2       0x70000000      /* MIPS32 R2 code.  */
  27 #define EF_MIPS_ARCH_64R2       0x80000000      /* MIPS64 R2 code.  */
  28
  29 /* The ABI of a file. */
  30 #define EF_MIPS_ABI_O32         0x00001000      /* O32 ABI.  */
  31 #define EF_MIPS_ABI_O64         0x00002000      /* O32 extended for 64 bit.  */
  32
  33 #define PT_MIPS_REGINFO         0x70000000
  34 #define PT_MIPS_RTPROC          0x70000001
  35 #define PT_MIPS_OPTIONS         0x70000002
  36 #define PT_MIPS_ABIFLAGS        0x70000003
  37
  38 /* Flags in the e_flags field of the header */
  39 #define EF_MIPS_NOREORDER       0x00000001
  40 #define EF_MIPS_PIC             0x00000002
  41 #define EF_MIPS_CPIC            0x00000004
  42 #define EF_MIPS_ABI2            0x00000020
  43 #define EF_MIPS_OPTIONS_FIRST   0x00000080
  44 #define EF_MIPS_32BITMODE       0x00000100
  45 #define EF_MIPS_FP64            0x00000200
  46 #define EF_MIPS_NAN2008         0x00000400
  47 #define EF_MIPS_ABI             0x0000f000
  48 #define EF_MIPS_ARCH            0xf0000000
  49
  50 #define DT_MIPS_RLD_VERSION     0x70000001
  51 #define DT_MIPS_TIME_STAMP      0x70000002
  52 #define DT_MIPS_ICHECKSUM       0x70000003
  53 #define DT_MIPS_IVERSION        0x70000004
  54 #define DT_MIPS_FLAGS           0x70000005
  55         #define RHF_NONE        0x00000000
  56         #define RHF_HARDWAY     0x00000001
  57         #define RHF_NOTPOT      0x00000002
  58         #define RHF_SGI_ONLY    0x00000010
  59 #define DT_MIPS_BASE_ADDRESS    0x70000006
  60 #define DT_MIPS_CONFLICT        0x70000008
  61 #define DT_MIPS_LIBLIST         0x70000009
  62 #define DT_MIPS_LOCAL_GOTNO     0x7000000a
  63 #define DT_MIPS_CONFLICTNO      0x7000000b
  64 #define DT_MIPS_LIBLISTNO       0x70000010
  65 #define DT_MIPS_SYMTABNO        0x70000011
  66 #define DT_MIPS_UNREFEXTNO      0x70000012
  67 #define DT_MIPS_GOTSYM          0x70000013
  68 #define DT_MIPS_HIPAGENO        0x70000014
  69 #define DT_MIPS_RLD_MAP         0x70000016
  70
  71 #define R_MIPS_NONE             0
  72 #define R_MIPS_16               1
  73 #define R_MIPS_32               2
  74 #define R_MIPS_REL32            3
  75 #define R_MIPS_26               4
  76 #define R_MIPS_HI16             5
  77 #define R_MIPS_LO16             6
  78 #define R_MIPS_GPREL16          7
  79 #define R_MIPS_LITERAL          8
  80 #define R_MIPS_GOT16            9
  81 #define R_MIPS_PC16             10
  82 #define R_MIPS_CALL16           11
  83 #define R_MIPS_GPREL32          12
  84 /* The remaining relocs are defined on Irix, although they are not
  85    in the MIPS ELF ABI.  */
  86 #define R_MIPS_UNUSED1          13
  87 #define R_MIPS_UNUSED2          14
  88 #define R_MIPS_UNUSED3          15
  89 #define R_MIPS_SHIFT5           16
  90 #define R_MIPS_SHIFT6           17
  91 #define R_MIPS_64               18
  92 #define R_MIPS_GOT_DISP         19
  93 #define R_MIPS_GOT_PAGE         20
  94 #define R_MIPS_GOT_OFST         21
  95 /*
  96  * The following two relocation types are specified in the MIPS ABI
  97  * conformance guide version 1.2 but not yet in the psABI.
  98  */
  99 #define R_MIPS_GOTHI16          22
 100 #define R_MIPS_GOTLO16          23
 101 #define R_MIPS_SUB              24
 102 #define R_MIPS_INSERT_A         25
 103 #define R_MIPS_INSERT_B         26
 104 #define R_MIPS_DELETE           27
 105 #define R_MIPS_HIGHER           28
 106 #define R_MIPS_HIGHEST          29
 107 /*
 108  * The following two relocation types are specified in the MIPS ABI
 109  * conformance guide version 1.2 but not yet in the psABI.
 110  */
 111 #define R_MIPS_CALLHI16         30
 112 #define R_MIPS_CALLLO16         31
 113 /*
 114  * Introduced for MIPSr6.
 115  */
 116 #define R_MIPS_PC21_S2          60
 117 #define R_MIPS_PC26_S2          61
 118 /*
 119  * This range is reserved for vendor specific relocations.
 120  */
 121 #define R_MIPS_LOVENDOR         100
 122 #define R_MIPS_HIVENDOR         127
 123
 124 #define SHN_MIPS_ACCOMON        0xff00          /* Allocated common symbols */
 125 #define SHN_MIPS_TEXT           0xff01          /* Allocated test symbols.  */
 126 #define SHN_MIPS_DATA           0xff02          /* Allocated data symbols.  */
 127 #define SHN_MIPS_SCOMMON        0xff03          /* Small common symbols */
 128 #define SHN_MIPS_SUNDEFINED     0xff04          /* Small undefined symbols */
 129
 130 #define SHT_MIPS_LIST           0x70000000
 131 #define SHT_MIPS_CONFLICT       0x70000002
 132 #define SHT_MIPS_GPTAB          0x70000003
 133 #define SHT_MIPS_UCODE          0x70000004
 134 #define SHT_MIPS_DEBUG          0x70000005
 135 #define SHT_MIPS_REGINFO        0x70000006
 136 #define SHT_MIPS_PACKAGE        0x70000007
 137 #define SHT_MIPS_PACKSYM        0x70000008
 138 #define SHT_MIPS_RELD           0x70000009
 139 #define SHT_MIPS_IFACE          0x7000000b
 140 #define SHT_MIPS_CONTENT        0x7000000c
 141 #define SHT_MIPS_OPTIONS        0x7000000d
 142 #define SHT_MIPS_SHDR           0x70000010
 143 #define SHT_MIPS_FDESC          0x70000011
 144 #define SHT_MIPS_EXTSYM         0x70000012
 145 #define SHT_MIPS_DENSE          0x70000013
 146 #define SHT_MIPS_PDESC          0x70000014
 147 #define SHT_MIPS_LOCSYM         0x70000015
 148 #define SHT_MIPS_AUXSYM         0x70000016
 149 #define SHT_MIPS_OPTSYM         0x70000017
 150 #define SHT_MIPS_LOCSTR         0x70000018
 151 #define SHT_MIPS_LINE           0x70000019
 152 #define SHT_MIPS_RFDESC         0x7000001a
 153 #define SHT_MIPS_DELTASYM       0x7000001b
 154 #define SHT_MIPS_DELTAINST      0x7000001c
 155 #define SHT_MIPS_DELTACLASS     0x7000001d
 156 #define SHT_MIPS_DWARF          0x7000001e
 157 #define SHT_MIPS_DELTADECL      0x7000001f
 158 #define SHT_MIPS_SYMBOL_LIB     0x70000020
 159 #define SHT_MIPS_EVENTS         0x70000021
 160 #define SHT_MIPS_TRANSLATE      0x70000022
 161 #define SHT_MIPS_PIXIE          0x70000023
 162 #define SHT_MIPS_XLATE          0x70000024
 163 #define SHT_MIPS_XLATE_DEBUG    0x70000025
 164 #define SHT_MIPS_WHIRL          0x70000026
 165 #define SHT_MIPS_EH_REGION      0x70000027
 166 #define SHT_MIPS_XLATE_OLD      0x70000028
 167 #define SHT_MIPS_PDR_EXCEPTION  0x70000029
 168
 169 #define SHF_MIPS_GPREL          0x10000000
 170 #define SHF_MIPS_MERGE          0x20000000
 171 #define SHF_MIPS_ADDR           0x40000000
 172 #define SHF_MIPS_STRING         0x80000000
 173 #define SHF_MIPS_NOSTRIP        0x08000000
 174 #define SHF_MIPS_LOCAL          0x04000000
 175 #define SHF_MIPS_NAMES          0x02000000
 176 #define SHF_MIPS_NODUPES        0x01000000
 177
 178 #define MIPS_ABI_FP_ANY         0       /* FP ABI doesn't matter */
 179 #define MIPS_ABI_FP_DOUBLE      1       /* -mdouble-float */
 180 #define MIPS_ABI_FP_SINGLE      2       /* -msingle-float */
 181 #define MIPS_ABI_FP_SOFT        3       /* -msoft-float */
 182 #define MIPS_ABI_FP_OLD_64      4       /* -mips32r2 -mfp64 */
 183 #define MIPS_ABI_FP_XX          5       /* -mfpxx */
 184 #define MIPS_ABI_FP_64          6       /* -mips32r2 -mfp64 */
 185 #define MIPS_ABI_FP_64A         7       /* -mips32r2 -mfp64 -mno-odd-spreg */
 186
 187 struct mips_elf_abiflags_v0 {
 188         uint16_t version;       /* Version of flags structure */
 189         uint8_t isa_level;      /* The level of the ISA: 1-5, 32, 64 */
 190         uint8_t isa_rev;        /* The revision of ISA: 0 for MIPS V and below,
 191                                    1-n otherwise */
 192         uint8_t gpr_size;       /* The size of general purpose registers */
 193         uint8_t cpr1_size;      /* The size of co-processor 1 registers */
 194         uint8_t cpr2_size;      /* The size of co-processor 2 registers */
 195         uint8_t fp_abi;         /* The floating-point ABI */
 196         uint32_t isa_ext;       /* Mask of processor-specific extensions */
 197         uint32_t ases;          /* Mask of ASEs used */
 198         uint32_t flags1;        /* Mask of general flags */
 199         uint32_t flags2;
 200 };
 201
 202 #ifndef ELF_ARCH
 203 /* ELF register definitions */
 204 #define ELF_NGREG       45
 205 #define ELF_NFPREG      33
 206
 207 typedef unsigned long elf_greg_t;
 208 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 209
 210 typedef double elf_fpreg_t;
 211 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 212
 213 void mips_dump_regs32(u32 *uregs, const struct pt_regs *regs);
 214 void mips_dump_regs64(u64 *uregs, const struct pt_regs *regs);
 215
 216 #ifdef CONFIG_32BIT
 217 /*
 218  * This is used to ensure we don't load something for the wrong architecture.
 219  */
 220 #define elf_check_arch elfo32_check_arch
 221
 222 /*
 223  * These are used to set parameters in the core dumps.
 224  */
 225 #define ELF_CLASS       ELFCLASS32
 226
 227 #define ELF_CORE_COPY_REGS(dest, regs) \
 228         mips_dump_regs32((u32 *)&(dest), (regs));
 229
 230 #endif /* CONFIG_32BIT */
 231
 232 #ifdef CONFIG_64BIT
 233 /*
 234  * This is used to ensure we don't load something for the wrong architecture.
 235  */
 236 #define elf_check_arch elfn64_check_arch
 237
 238 /*
 239  * These are used to set parameters in the core dumps.
 240  */
 241 #define ELF_CLASS       ELFCLASS64
 242
 243 #define ELF_CORE_COPY_REGS(dest, regs) \
 244         mips_dump_regs64((u64 *)&(dest), (regs));
 245
 246 #endif /* CONFIG_64BIT */
 247
 248 /*
 249  * These are used to set parameters in the core dumps.
 250  */
 251 #ifdef __MIPSEB__
 252 #define ELF_DATA        ELFDATA2MSB
 253 #elif defined(__MIPSEL__)
 254 #define ELF_DATA        ELFDATA2LSB
 255 #endif
 256 #define ELF_ARCH        EM_MIPS
 257
 258 #endif /* !defined(ELF_ARCH) */
 259
 260 /*
 261  * In order to be sure that we don't attempt to execute an O32 binary which
 262  * requires 64 bit FP (FR=1) on a system which does not support it we refuse
 263  * to execute any binary which has bits specified by the following macro set
 264  * in its ELF header flags.
 265  */
 266 #ifdef CONFIG_MIPS_O32_FP64_SUPPORT
 267 # define __MIPS_O32_FP64_MUST_BE_ZERO   0
 268 #else
 269 # define __MIPS_O32_FP64_MUST_BE_ZERO   EF_MIPS_FP64
 270 #endif
 271
 272 #define mips_elf_check_machine(x) ((x)->e_machine == EM_MIPS)
 273
 274 #define vmcore_elf32_check_arch mips_elf_check_machine
 275 #define vmcore_elf64_check_arch mips_elf_check_machine
 276
 277 /*
 278  * Return non-zero if HDR identifies an o32 ELF binary.
 279  */
 280 #define elfo32_check_arch(hdr)                                          \
 281 ({                                                                      \
 282         int __res = 1;                                                  \
 283         struct elfhdr *__h = (hdr);                                     \
 284                                                                         \
 285         if (!mips_elf_check_machine(__h))                               \
 286                 __res = 0;                                              \
 287         if (__h->e_ident[EI_CLASS] != ELFCLASS32)                       \
 288                 __res = 0;                                              \
 289         if ((__h->e_flags & EF_MIPS_ABI2) != 0)                         \
 290                 __res = 0;                                              \
 291         if (((__h->e_flags & EF_MIPS_ABI) != 0) &&                      \
 292             ((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32))          \
 293                 __res = 0;                                              \
 294         if (__h->e_flags & __MIPS_O32_FP64_MUST_BE_ZERO)                \
 295                 __res = 0;                                              \
 296                                                                         \
 297         __res;                                                          \
 298 })
 299
 300 /*
 301  * Return non-zero if HDR identifies an n64 ELF binary.
 302  */
 303 #define elfn64_check_arch(hdr)                                          \
 304 ({                                                                      \
 305         int __res = 1;                                                  \
 306         struct elfhdr *__h = (hdr);                                     \
 307                                                                         \
 308         if (!mips_elf_check_machine(__h))                               \
 309                 __res = 0;                                              \
 310         if (__h->e_ident[EI_CLASS] != ELFCLASS64)                       \
 311                 __res = 0;                                              \
 312                                                                         \
 313         __res;                                                          \
 314 })
 315
 316 /*
 317  * Return non-zero if HDR identifies an n32 ELF binary.
 318  */
 319 #define elfn32_check_arch(hdr)                                          \
 320 ({                                                                      \
 321         int __res = 1;                                                  \
 322         struct elfhdr *__h = (hdr);                                     \
 323                                                                         \
 324         if (!mips_elf_check_machine(__h))                               \
 325                 __res = 0;                                              \
 326         if (__h->e_ident[EI_CLASS] != ELFCLASS32)                       \
 327                 __res = 0;                                              \
 328         if (((__h->e_flags & EF_MIPS_ABI2) == 0) ||                     \
 329             ((__h->e_flags & EF_MIPS_ABI) != 0))                        \
 330                 __res = 0;                                              \
 331                                                                         \
 332         __res;                                                          \
 333 })
 334
 335 struct mips_abi;
 336
 337 extern struct mips_abi mips_abi;
 338 extern struct mips_abi mips_abi_32;
 339 extern struct mips_abi mips_abi_n32;
 340
 341 #ifdef CONFIG_32BIT
 342
 343 #define SET_PERSONALITY2(ex, state)                                     \
 344 do {                                                                    \
 345         clear_thread_flag(TIF_HYBRID_FPREGS);                           \
 346         set_thread_flag(TIF_32BIT_FPREGS);                              \
 347                                                                         \
 348         current->thread.abi = &mips_abi;                                \
 349                                                                         \
 350         mips_set_personality_fp(state);                                 \
 351         mips_set_personality_nan(state);                                \
 352                                                                         \
 353         if (personality(current->personality) != PER_LINUX)             \
 354                 set_personality(PER_LINUX);                             \
 355 } while (0)
 356
 357 #endif /* CONFIG_32BIT */
 358
 359 #ifdef CONFIG_64BIT
 360
 361 #ifdef CONFIG_MIPS32_N32
 362 #define __SET_PERSONALITY32_N32()                                       \
 363         do {                                                            \
 364                 set_thread_flag(TIF_32BIT_ADDR);                        \
 365                                                                         \
 366                 current->thread.abi = &mips_abi_n32;                    \
 367         } while (0)
 368 #else
 369 #define __SET_PERSONALITY32_N32()                                       \
 370         do { } while (0)
 371 #endif
 372
 373 #ifdef CONFIG_MIPS32_O32
 374 #define __SET_PERSONALITY32_O32(ex, state)                              \
 375         do {                                                            \
 376                 set_thread_flag(TIF_32BIT_REGS);                        \
 377                 set_thread_flag(TIF_32BIT_ADDR);                        \
 378                 clear_thread_flag(TIF_HYBRID_FPREGS);                   \
 379                 set_thread_flag(TIF_32BIT_FPREGS);                      \
 380                                                                         \
 381                 current->thread.abi = &mips_abi_32;                     \
 382                                                                         \
 383                 mips_set_personality_fp(state);                         \
 384         } while (0)
 385 #else
 386 #define __SET_PERSONALITY32_O32(ex, state)                              \
 387         do { } while (0)
 388 #endif
 389
 390 #ifdef CONFIG_MIPS32_COMPAT
 391 #define __SET_PERSONALITY32(ex, state)                                  \
 392 do {                                                                    \
 393         if ((((ex).e_flags & EF_MIPS_ABI2) != 0) &&                     \
 394              ((ex).e_flags & EF_MIPS_ABI) == 0)                         \
 395                 __SET_PERSONALITY32_N32();                              \
 396         else                                                            \
 397                 __SET_PERSONALITY32_O32(ex, state);                     \
 398 } while (0)
 399 #else
 400 #define __SET_PERSONALITY32(ex, state) do { } while (0)
 401 #endif
 402
 403 #define SET_PERSONALITY2(ex, state)                                     \
 404 do {                                                                    \
 405         unsigned int p;                                                 \
 406                                                                         \
 407         clear_thread_flag(TIF_32BIT_REGS);                              \
 408         clear_thread_flag(TIF_32BIT_FPREGS);                            \
 409         clear_thread_flag(TIF_HYBRID_FPREGS);                           \
 410         clear_thread_flag(TIF_32BIT_ADDR);                              \
 411                                                                         \
 412         if ((ex).e_ident[EI_CLASS] == ELFCLASS32)                       \
 413                 __SET_PERSONALITY32(ex, state);                         \
 414         else                                                            \
 415                 current->thread.abi = &mips_abi;                        \
 416                                                                         \
 417         mips_set_personality_nan(state);                                \
 418                                                                         \
 419         p = personality(current->personality);                          \
 420         if (p != PER_LINUX32 && p != PER_LINUX)                         \
 421                 set_personality(PER_LINUX);                             \
 422 } while (0)
 423
 424 #endif /* CONFIG_64BIT */
 425
 426 #define CORE_DUMP_USE_REGSET
 427 #define ELF_EXEC_PAGESIZE       PAGE_SIZE
 428
 429 /* This yields a mask that user programs can use to figure out what
 430    instruction set this cpu supports.  This could be done in userspace,
 431    but it's not easy, and we've already done it here.  */
 432
 433 #define ELF_HWCAP       (elf_hwcap)
 434 extern unsigned int elf_hwcap;
 435 #include <asm/hwcap.h>
 436
 437 /*
 438  * This yields a string that ld.so will use to load implementation
 439  * specific libraries for optimization.  This is more specific in
 440  * intent than poking at uname or /proc/cpuinfo.
 441  */
 442
 443 #define ELF_PLATFORM  __elf_platform
 444 extern const char *__elf_platform;
 445
 446 /*
 447  * See comments in asm-alpha/elf.h, this is the same thing
 448  * on the MIPS.
 449  */
 450 #define ELF_PLAT_INIT(_r, load_addr)    do { \
 451         _r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0;      \
 452         _r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0;      \
 453         _r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0;   \
 454         _r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0;  \
 455         _r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0;  \
 456         _r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0;  \
 457         _r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0;  \
 458         _r->regs[30] = _r->regs[31] = 0;                                \
 459 } while (0)
 460
 461 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
 462    use of this is to invoke "./ld.so someprog" to test out a new version of
 463    the loader.  We need to make sure that it is out of the way of the program
 464    that it will "exec", and that there is sufficient room for the brk.  */
 465
 466 #ifndef ELF_ET_DYN_BASE
 467 #define ELF_ET_DYN_BASE         (TASK_SIZE / 3 * 2)
 468 #endif
 469
 470 /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
 471 #define ARCH_DLINFO                                                     \
 472 do {                                                                    \
 473         NEW_AUX_ENT(AT_SYSINFO_EHDR,                                    \
 474                     (unsigned long)current->mm->context.vdso);          \
 475 } while (0)
 476
 477 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
 478 struct linux_binprm;
 479 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 480                                        int uses_interp);
 481
 482 struct arch_elf_state {
 483         int nan_2008;
 484         int fp_abi;
 485         int interp_fp_abi;
 486         int overall_fp_mode;
 487 };
 488
 489 #define MIPS_ABI_FP_UNKNOWN     (-1)    /* Unknown FP ABI (kernel internal) */
 490
 491 #define INIT_ARCH_ELF_STATE {                   \
 492         .nan_2008 = -1,                         \
 493         .fp_abi = MIPS_ABI_FP_UNKNOWN,          \
 494         .interp_fp_abi = MIPS_ABI_FP_UNKNOWN,   \
 495         .overall_fp_mode = -1,                  \
 496 }
 497
 498 /* Whether to accept legacy-NaN and 2008-NaN user binaries.  */
 499 extern bool mips_use_nan_legacy;
 500 extern bool mips_use_nan_2008;
 501
 502 extern int arch_elf_pt_proc(void *ehdr, void *phdr, struct file *elf,
 503                             bool is_interp, struct arch_elf_state *state);
 504
 505 extern int arch_check_elf(void *ehdr, bool has_interpreter, void *interp_ehdr,
 506                           struct arch_elf_state *state);
 507
 508 extern void mips_set_personality_nan(struct arch_elf_state *state);
 509 extern void mips_set_personality_fp(struct arch_elf_state *state);
 510
 511 #define elf_read_implies_exec(ex, stk) mips_elf_read_implies_exec(&(ex), stk)
 512 extern int mips_elf_read_implies_exec(void *elf_ex, int exstack);
 513
 514 #endif /* _ASM_ELF_H */