arch/powerpc/include/uapi/asm/elf.h

   1 /*
   2  * ELF register definitions..
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version
   7  * 2 of the License, or (at your option) any later version.
   8  */
   9 #ifndef _UAPI_ASM_POWERPC_ELF_H
  10 #define _UAPI_ASM_POWERPC_ELF_H
  11
  12
  13 #include <linux/types.h>
  14
  15 #include <asm/ptrace.h>
  16 #include <asm/cputable.h>
  17 #include <asm/auxvec.h>
  18
  19 /* PowerPC relocations defined by the ABIs */
  20 #define R_PPC_NONE              0
  21 #define R_PPC_ADDR32            1       /* 32bit absolute address */
  22 #define R_PPC_ADDR24            2       /* 26bit address, 2 bits ignored.  */
  23 #define R_PPC_ADDR16            3       /* 16bit absolute address */
  24 #define R_PPC_ADDR16_LO         4       /* lower 16bit of absolute address */
  25 #define R_PPC_ADDR16_HI         5       /* high 16bit of absolute address */
  26 #define R_PPC_ADDR16_HA         6       /* adjusted high 16bit */
  27 #define R_PPC_ADDR14            7       /* 16bit address, 2 bits ignored */
  28 #define R_PPC_ADDR14_BRTAKEN    8
  29 #define R_PPC_ADDR14_BRNTAKEN   9
  30 #define R_PPC_REL24             10      /* PC relative 26 bit */
  31 #define R_PPC_REL14             11      /* PC relative 16 bit */
  32 #define R_PPC_REL14_BRTAKEN     12
  33 #define R_PPC_REL14_BRNTAKEN    13
  34 #define R_PPC_GOT16             14
  35 #define R_PPC_GOT16_LO          15
  36 #define R_PPC_GOT16_HI          16
  37 #define R_PPC_GOT16_HA          17
  38 #define R_PPC_PLTREL24          18
  39 #define R_PPC_COPY              19
  40 #define R_PPC_GLOB_DAT          20
  41 #define R_PPC_JMP_SLOT          21
  42 #define R_PPC_RELATIVE          22
  43 #define R_PPC_LOCAL24PC         23
  44 #define R_PPC_UADDR32           24
  45 #define R_PPC_UADDR16           25
  46 #define R_PPC_REL32             26
  47 #define R_PPC_PLT32             27
  48 #define R_PPC_PLTREL32          28
  49 #define R_PPC_PLT16_LO          29
  50 #define R_PPC_PLT16_HI          30
  51 #define R_PPC_PLT16_HA          31
  52 #define R_PPC_SDAREL16          32
  53 #define R_PPC_SECTOFF           33
  54 #define R_PPC_SECTOFF_LO        34
  55 #define R_PPC_SECTOFF_HI        35
  56 #define R_PPC_SECTOFF_HA        36
  57
  58 /* PowerPC relocations defined for the TLS access ABI.  */
  59 #define R_PPC_TLS               67 /* none      (sym+add)@tls */
  60 #define R_PPC_DTPMOD32          68 /* word32    (sym+add)@dtpmod */
  61 #define R_PPC_TPREL16           69 /* half16*   (sym+add)@tprel */
  62 #define R_PPC_TPREL16_LO        70 /* half16    (sym+add)@tprel@l */
  63 #define R_PPC_TPREL16_HI        71 /* half16    (sym+add)@tprel@h */
  64 #define R_PPC_TPREL16_HA        72 /* half16    (sym+add)@tprel@ha */
  65 #define R_PPC_TPREL32           73 /* word32    (sym+add)@tprel */
  66 #define R_PPC_DTPREL16          74 /* half16*   (sym+add)@dtprel */
  67 #define R_PPC_DTPREL16_LO       75 /* half16    (sym+add)@dtprel@l */
  68 #define R_PPC_DTPREL16_HI       76 /* half16    (sym+add)@dtprel@h */
  69 #define R_PPC_DTPREL16_HA       77 /* half16    (sym+add)@dtprel@ha */
  70 #define R_PPC_DTPREL32          78 /* word32    (sym+add)@dtprel */
  71 #define R_PPC_GOT_TLSGD16       79 /* half16*   (sym+add)@got@tlsgd */
  72 #define R_PPC_GOT_TLSGD16_LO    80 /* half16    (sym+add)@got@tlsgd@l */
  73 #define R_PPC_GOT_TLSGD16_HI    81 /* half16    (sym+add)@got@tlsgd@h */
  74 #define R_PPC_GOT_TLSGD16_HA    82 /* half16    (sym+add)@got@tlsgd@ha */
  75 #define R_PPC_GOT_TLSLD16       83 /* half16*   (sym+add)@got@tlsld */
  76 #define R_PPC_GOT_TLSLD16_LO    84 /* half16    (sym+add)@got@tlsld@l */
  77 #define R_PPC_GOT_TLSLD16_HI    85 /* half16    (sym+add)@got@tlsld@h */
  78 #define R_PPC_GOT_TLSLD16_HA    86 /* half16    (sym+add)@got@tlsld@ha */
  79 #define R_PPC_GOT_TPREL16       87 /* half16*   (sym+add)@got@tprel */
  80 #define R_PPC_GOT_TPREL16_LO    88 /* half16    (sym+add)@got@tprel@l */
  81 #define R_PPC_GOT_TPREL16_HI    89 /* half16    (sym+add)@got@tprel@h */
  82 #define R_PPC_GOT_TPREL16_HA    90 /* half16    (sym+add)@got@tprel@ha */
  83 #define R_PPC_GOT_DTPREL16      91 /* half16*   (sym+add)@got@dtprel */
  84 #define R_PPC_GOT_DTPREL16_LO   92 /* half16*   (sym+add)@got@dtprel@l */
  85 #define R_PPC_GOT_DTPREL16_HI   93 /* half16*   (sym+add)@got@dtprel@h */
  86 #define R_PPC_GOT_DTPREL16_HA   94 /* half16*   (sym+add)@got@dtprel@ha */
  87
  88 /* keep this the last entry. */
  89 #define R_PPC_NUM               95
  90
  91
  92 #define ELF_NGREG       48      /* includes nip, msr, lr, etc. */
  93 #define ELF_NFPREG      33      /* includes fpscr */
  94 #define ELF_NVMX        34      /* includes all vector registers */
  95 #define ELF_NVSX        32      /* includes all VSX registers */
  96 #define ELF_NTMSPRREG   3       /* include tfhar, tfiar, texasr */
  97
  98 typedef unsigned long elf_greg_t64;
  99 typedef elf_greg_t64 elf_gregset_t64[ELF_NGREG];
 100
 101 typedef unsigned int elf_greg_t32;
 102 typedef elf_greg_t32 elf_gregset_t32[ELF_NGREG];
 103 typedef elf_gregset_t32 compat_elf_gregset_t;
 104
 105 /*
 106  * ELF_ARCH, CLASS, and DATA are used to set parameters in the core dumps.
 107  */
 108 #ifdef __powerpc64__
 109 # define ELF_NVRREG32   33      /* includes vscr & vrsave stuffed together */
 110 # define ELF_NVRREG     34      /* includes vscr & vrsave in split vectors */
 111 # define ELF_NVSRHALFREG 32     /* Half the vsx registers */
 112 # define ELF_GREG_TYPE  elf_greg_t64
 113 # define ELF_ARCH       EM_PPC64
 114 # define ELF_CLASS      ELFCLASS64
 115 typedef elf_greg_t64 elf_greg_t;
 116 typedef elf_gregset_t64 elf_gregset_t;
 117 #else
 118 # define ELF_NEVRREG    34      /* includes acc (as 2) */
 119 # define ELF_NVRREG     33      /* includes vscr */
 120 # define ELF_GREG_TYPE  elf_greg_t32
 121 # define ELF_ARCH       EM_PPC
 122 # define ELF_CLASS      ELFCLASS32
 123 typedef elf_greg_t32 elf_greg_t;
 124 typedef elf_gregset_t32 elf_gregset_t;
 125 #endif /* __powerpc64__ */
 126
 127 #ifdef __BIG_ENDIAN__
 128 #define ELF_DATA        ELFDATA2MSB
 129 #else
 130 #define ELF_DATA        ELFDATA2LSB
 131 #endif
 132
 133 /* Floating point registers */
 134 typedef double elf_fpreg_t;
 135 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 136
 137 /* Altivec registers */
 138 /*
 139  * The entries with indexes 0-31 contain the corresponding vector registers.
 140  * The entry with index 32 contains the vscr as the last word (offset 12)
 141  * within the quadword.  This allows the vscr to be stored as either a
 142  * quadword (since it must be copied via a vector register to/from storage)
 143  * or as a word.
 144  *
 145  * 64-bit kernel notes: The entry at index 33 contains the vrsave as the first
 146  * word (offset 0) within the quadword.
 147  *
 148  * This definition of the VMX state is compatible with the current PPC32
 149  * ptrace interface.  This allows signal handling and ptrace to use the same
 150  * structures.  This also simplifies the implementation of a bi-arch
 151  * (combined (32- and 64-bit) gdb.
 152  *
 153  * Note that it's _not_ compatible with 32 bits ucontext which stuffs the
 154  * vrsave along with vscr and so only uses 33 vectors for the register set
 155  */
 156 typedef __vector128 elf_vrreg_t;
 157 typedef elf_vrreg_t elf_vrregset_t[ELF_NVRREG];
 158 #ifdef __powerpc64__
 159 typedef elf_vrreg_t elf_vrregset_t32[ELF_NVRREG32];
 160 typedef elf_fpreg_t elf_vsrreghalf_t32[ELF_NVSRHALFREG];
 161 #endif
 162
 163
 164 /*
 165  * The requirements here are:
 166  * - keep the final alignment of sp (sp & 0xf)
 167  * - make sure the 32-bit value at the first 16 byte aligned position of
 168  *   AUXV is greater than 16 for glibc compatibility.
 169  *   AT_IGNOREPPC is used for that.
 170  * - for compatibility with glibc ARCH_DLINFO must always be defined on PPC,
 171  *   even if DLINFO_ARCH_ITEMS goes to zero or is undefined.
 172  * update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes
 173  */
 174 #define ARCH_DLINFO                                                     \
 175 do {                                                                    \
 176         /* Handle glibc compatibility. */                               \
 177         NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC);                        \
 178         NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC);                        \
 179         /* Cache size items */                                          \
 180         NEW_AUX_ENT(AT_DCACHEBSIZE, dcache_bsize);                      \
 181         NEW_AUX_ENT(AT_ICACHEBSIZE, icache_bsize);                      \
 182         NEW_AUX_ENT(AT_UCACHEBSIZE, ucache_bsize);                      \
 183         VDSO_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso_base);  \
 184 } while (0)
 185
 186 /* PowerPC64 relocations defined by the ABIs */
 187 #define R_PPC64_NONE    R_PPC_NONE
 188 #define R_PPC64_ADDR32  R_PPC_ADDR32  /* 32bit absolute address.  */
 189 #define R_PPC64_ADDR24  R_PPC_ADDR24  /* 26bit address, word aligned.  */
 190 #define R_PPC64_ADDR16  R_PPC_ADDR16  /* 16bit absolute address. */
 191 #define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO /* lower 16bits of abs. address.  */
 192 #define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI /* high 16bits of abs. address. */
 193 #define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA /* adjusted high 16bits.  */
 194 #define R_PPC64_ADDR14 R_PPC_ADDR14   /* 16bit address, word aligned.  */
 195 #define R_PPC64_ADDR14_BRTAKEN  R_PPC_ADDR14_BRTAKEN
 196 #define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN
 197 #define R_PPC64_REL24   R_PPC_REL24 /* PC relative 26 bit, word aligned.  */
 198 #define R_PPC64_REL14   R_PPC_REL14 /* PC relative 16 bit. */
 199 #define R_PPC64_REL14_BRTAKEN   R_PPC_REL14_BRTAKEN
 200 #define R_PPC64_REL14_BRNTAKEN  R_PPC_REL14_BRNTAKEN
 201 #define R_PPC64_GOT16     R_PPC_GOT16
 202 #define R_PPC64_GOT16_LO  R_PPC_GOT16_LO
 203 #define R_PPC64_GOT16_HI  R_PPC_GOT16_HI
 204 #define R_PPC64_GOT16_HA  R_PPC_GOT16_HA
 205
 206 #define R_PPC64_COPY      R_PPC_COPY
 207 #define R_PPC64_GLOB_DAT  R_PPC_GLOB_DAT
 208 #define R_PPC64_JMP_SLOT  R_PPC_JMP_SLOT
 209 #define R_PPC64_RELATIVE  R_PPC_RELATIVE
 210
 211 #define R_PPC64_UADDR32   R_PPC_UADDR32
 212 #define R_PPC64_UADDR16   R_PPC_UADDR16
 213 #define R_PPC64_REL32     R_PPC_REL32
 214 #define R_PPC64_PLT32     R_PPC_PLT32
 215 #define R_PPC64_PLTREL32  R_PPC_PLTREL32
 216 #define R_PPC64_PLT16_LO  R_PPC_PLT16_LO
 217 #define R_PPC64_PLT16_HI  R_PPC_PLT16_HI
 218 #define R_PPC64_PLT16_HA  R_PPC_PLT16_HA
 219
 220 #define R_PPC64_SECTOFF     R_PPC_SECTOFF
 221 #define R_PPC64_SECTOFF_LO  R_PPC_SECTOFF_LO
 222 #define R_PPC64_SECTOFF_HI  R_PPC_SECTOFF_HI
 223 #define R_PPC64_SECTOFF_HA  R_PPC_SECTOFF_HA
 224 #define R_PPC64_ADDR30          37  /* word30 (S + A - P) >> 2.  */
 225 #define R_PPC64_ADDR64          38  /* doubleword64 S + A.  */
 226 #define R_PPC64_ADDR16_HIGHER   39  /* half16 #higher(S + A).  */
 227 #define R_PPC64_ADDR16_HIGHERA  40  /* half16 #highera(S + A).  */
 228 #define R_PPC64_ADDR16_HIGHEST  41  /* half16 #highest(S + A).  */
 229 #define R_PPC64_ADDR16_HIGHESTA 42  /* half16 #highesta(S + A). */
 230 #define R_PPC64_UADDR64     43  /* doubleword64 S + A.  */
 231 #define R_PPC64_REL64       44  /* doubleword64 S + A - P.  */
 232 #define R_PPC64_PLT64       45  /* doubleword64 L + A.  */
 233 #define R_PPC64_PLTREL64    46  /* doubleword64 L + A - P.  */
 234 #define R_PPC64_TOC16       47  /* half16* S + A - .TOC.  */
 235 #define R_PPC64_TOC16_LO    48  /* half16 #lo(S + A - .TOC.).  */
 236 #define R_PPC64_TOC16_HI    49  /* half16 #hi(S + A - .TOC.).  */
 237 #define R_PPC64_TOC16_HA    50  /* half16 #ha(S + A - .TOC.).  */
 238 #define R_PPC64_TOC         51  /* doubleword64 .TOC. */
 239 #define R_PPC64_PLTGOT16    52  /* half16* M + A.  */
 240 #define R_PPC64_PLTGOT16_LO 53  /* half16 #lo(M + A).  */
 241 #define R_PPC64_PLTGOT16_HI 54  /* half16 #hi(M + A).  */
 242 #define R_PPC64_PLTGOT16_HA 55  /* half16 #ha(M + A).  */
 243
 244 #define R_PPC64_ADDR16_DS      56 /* half16ds* (S + A) >> 2.  */
 245 #define R_PPC64_ADDR16_LO_DS   57 /* half16ds  #lo(S + A) >> 2.  */
 246 #define R_PPC64_GOT16_DS       58 /* half16ds* (G + A) >> 2.  */
 247 #define R_PPC64_GOT16_LO_DS    59 /* half16ds  #lo(G + A) >> 2.  */
 248 #define R_PPC64_PLT16_LO_DS    60 /* half16ds  #lo(L + A) >> 2.  */
 249 #define R_PPC64_SECTOFF_DS     61 /* half16ds* (R + A) >> 2.  */
 250 #define R_PPC64_SECTOFF_LO_DS  62 /* half16ds  #lo(R + A) >> 2.  */
 251 #define R_PPC64_TOC16_DS       63 /* half16ds* (S + A - .TOC.) >> 2.  */
 252 #define R_PPC64_TOC16_LO_DS    64 /* half16ds  #lo(S + A - .TOC.) >> 2.  */
 253 #define R_PPC64_PLTGOT16_DS    65 /* half16ds* (M + A) >> 2.  */
 254 #define R_PPC64_PLTGOT16_LO_DS 66 /* half16ds  #lo(M + A) >> 2.  */
 255
 256 /* PowerPC64 relocations defined for the TLS access ABI.  */
 257 #define R_PPC64_TLS             67 /* none      (sym+add)@tls */
 258 #define R_PPC64_DTPMOD64        68 /* doubleword64 (sym+add)@dtpmod */
 259 #define R_PPC64_TPREL16         69 /* half16*   (sym+add)@tprel */
 260 #define R_PPC64_TPREL16_LO      70 /* half16    (sym+add)@tprel@l */
 261 #define R_PPC64_TPREL16_HI      71 /* half16    (sym+add)@tprel@h */
 262 #define R_PPC64_TPREL16_HA      72 /* half16    (sym+add)@tprel@ha */
 263 #define R_PPC64_TPREL64         73 /* doubleword64 (sym+add)@tprel */
 264 #define R_PPC64_DTPREL16        74 /* half16*   (sym+add)@dtprel */
 265 #define R_PPC64_DTPREL16_LO     75 /* half16    (sym+add)@dtprel@l */
 266 #define R_PPC64_DTPREL16_HI     76 /* half16    (sym+add)@dtprel@h */
 267 #define R_PPC64_DTPREL16_HA     77 /* half16    (sym+add)@dtprel@ha */
 268 #define R_PPC64_DTPREL64        78 /* doubleword64 (sym+add)@dtprel */
 269 #define R_PPC64_GOT_TLSGD16     79 /* half16*   (sym+add)@got@tlsgd */
 270 #define R_PPC64_GOT_TLSGD16_LO  80 /* half16    (sym+add)@got@tlsgd@l */
 271 #define R_PPC64_GOT_TLSGD16_HI  81 /* half16    (sym+add)@got@tlsgd@h */
 272 #define R_PPC64_GOT_TLSGD16_HA  82 /* half16    (sym+add)@got@tlsgd@ha */
 273 #define R_PPC64_GOT_TLSLD16     83 /* half16*   (sym+add)@got@tlsld */
 274 #define R_PPC64_GOT_TLSLD16_LO  84 /* half16    (sym+add)@got@tlsld@l */
 275 #define R_PPC64_GOT_TLSLD16_HI  85 /* half16    (sym+add)@got@tlsld@h */
 276 #define R_PPC64_GOT_TLSLD16_HA  86 /* half16    (sym+add)@got@tlsld@ha */
 277 #define R_PPC64_GOT_TPREL16_DS  87 /* half16ds* (sym+add)@got@tprel */
 278 #define R_PPC64_GOT_TPREL16_LO_DS 88 /* half16ds (sym+add)@got@tprel@l */
 279 #define R_PPC64_GOT_TPREL16_HI  89 /* half16    (sym+add)@got@tprel@h */
 280 #define R_PPC64_GOT_TPREL16_HA  90 /* half16    (sym+add)@got@tprel@ha */
 281 #define R_PPC64_GOT_DTPREL16_DS 91 /* half16ds* (sym+add)@got@dtprel */
 282 #define R_PPC64_GOT_DTPREL16_LO_DS 92 /* half16ds (sym+add)@got@dtprel@l */
 283 #define R_PPC64_GOT_DTPREL16_HI 93 /* half16    (sym+add)@got@dtprel@h */
 284 #define R_PPC64_GOT_DTPREL16_HA 94 /* half16    (sym+add)@got@dtprel@ha */
 285 #define R_PPC64_TPREL16_DS      95 /* half16ds* (sym+add)@tprel */
 286 #define R_PPC64_TPREL16_LO_DS   96 /* half16ds  (sym+add)@tprel@l */
 287 #define R_PPC64_TPREL16_HIGHER  97 /* half16    (sym+add)@tprel@higher */
 288 #define R_PPC64_TPREL16_HIGHERA 98 /* half16    (sym+add)@tprel@highera */
 289 #define R_PPC64_TPREL16_HIGHEST 99 /* half16    (sym+add)@tprel@highest */
 290 #define R_PPC64_TPREL16_HIGHESTA 100 /* half16  (sym+add)@tprel@highesta */
 291 #define R_PPC64_DTPREL16_DS     101 /* half16ds* (sym+add)@dtprel */
 292 #define R_PPC64_DTPREL16_LO_DS  102 /* half16ds (sym+add)@dtprel@l */
 293 #define R_PPC64_DTPREL16_HIGHER 103 /* half16   (sym+add)@dtprel@higher */
 294 #define R_PPC64_DTPREL16_HIGHERA 104 /* half16  (sym+add)@dtprel@highera */
 295 #define R_PPC64_DTPREL16_HIGHEST 105 /* half16  (sym+add)@dtprel@highest */
 296 #define R_PPC64_DTPREL16_HIGHESTA 106 /* half16 (sym+add)@dtprel@highesta */
 297 #define R_PPC64_TLSGD           107
 298 #define R_PPC64_TLSLD           108
 299 #define R_PPC64_TOCSAVE         109
 300
 301 #define R_PPC64_ENTRY           118
 302
 303 #define R_PPC64_REL16           249
 304 #define R_PPC64_REL16_LO        250
 305 #define R_PPC64_REL16_HI        251
 306 #define R_PPC64_REL16_HA        252
 307
 308 /* Keep this the last entry.  */
 309 #define R_PPC64_NUM             253
 310
 311 /* There's actually a third entry here, but it's unused */
 312 struct ppc64_opd_entry
 313 {
 314         unsigned long funcaddr;
 315         unsigned long r2;
 316 };
 317
 318
 319 #endif /* _UAPI_ASM_POWERPC_ELF_H */