include/elf/ia64.h

   1 /* IA-64 ELF support for BFD.
   2    Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2008, 2009
   3    Free Software Foundation, Inc.
   4    Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
   5
   6    This file is part of BFD, the Binary File Descriptor library.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  21
  22 #ifndef _ELF_IA64_H
  23 #define _ELF_IA64_H
  24
  25 /* Bits in the e_flags field of the Elf64_Ehdr:  */
  26
  27 #define EF_IA_64_MASKOS    0x0000000f   /* OS-specific flags.  */
  28 #define EF_IA_64_ARCH      0xff000000   /* Arch. version mask.  */
  29 #define EF_IA_64_ARCHVER_1 (1 << 24)    /* Arch. version level 1 compat.  */
  30
  31 /* ??? These four definitions are not part of the SVR4 ABI.
  32    They were present in David's initial code drop, so it is probable
  33    that they are used by HP/UX.  */
  34 #define EF_IA_64_TRAPNIL (1 << 0)       /* Trap NIL pointer dereferences.  */
  35 #define EF_IA_64_EXT     (1 << 2)       /* Program uses arch. extensions.  */
  36 #define EF_IA_64_BE      (1 << 3)       /* PSR BE bit set (big-endian).  */
  37 #define EFA_IA_64_EAS2_3 0x23000000     /* IA64 EAS 2.3.  */
  38
  39 #define EF_IA_64_ABI64              (1 << 4) /* 64-bit ABI.  */
  40 /* Not used yet.  */
  41 #define EF_IA_64_REDUCEDFP          (1 << 5) /* Only FP6-FP11 used.  */
  42 #define EF_IA_64_CONS_GP            (1 << 6) /* gp as program wide constant.  */
  43 #define EF_IA_64_NOFUNCDESC_CONS_GP (1 << 7) /* And no function descriptors.  */
  44 /* Not used yet.  */
  45 #define EF_IA_64_ABSOLUTE           (1 << 8) /* Load at absolute addresses.  */
  46
  47 #define ELF_STRING_ia64_archext         ".IA_64.archext"
  48 #define ELF_STRING_ia64_pltoff          ".IA_64.pltoff"
  49 #define ELF_STRING_ia64_unwind          ".IA_64.unwind"
  50 #define ELF_STRING_ia64_unwind_info     ".IA_64.unwind_info"
  51 #define ELF_STRING_ia64_unwind_once     ".gnu.linkonce.ia64unw."
  52 #define ELF_STRING_ia64_unwind_info_once ".gnu.linkonce.ia64unwi."
  53 /* .IA_64.unwind_hdr is only used by HP-UX.  */
  54 #define ELF_STRING_ia64_unwind_hdr      ".IA_64.unwind_hdr"
  55
  56 /* Bits in the sh_flags field of Elf64_Shdr:  */
  57
  58 #define SHF_IA_64_SHORT           0x10000000    /* Section near gp.  */
  59 #define SHF_IA_64_NORECOV         0x20000000    /* Spec insns w/o recovery.  */
  60
  61 #define SHF_IA_64_HP_TLS          0x01000000    /* HP specific TLS flag.  */
  62
  63 #define SHF_IA_64_VMS_GLOBAL      0x0100000000ULL /* Global for clustering.  */
  64 #define SHF_IA_64_VMS_OVERLAID    0x0200000000ULL /* To be overlaid.  */
  65 #define SHF_IA_64_VMS_SHARED      0x0400000000ULL /* Shared btw processes.  */
  66 #define SHF_IA_64_VMS_VECTOR      0x0800000000ULL /* Priv change mode vect.  */
  67 #define SHF_IA_64_VMS_ALLOC_64BIT 0x1000000000ULL /* Allocate beyond 2GB.  */
  68 #define SHF_IA_64_VMS_PROTECTED   0x2000000000ULL /* Export from sharable.  */
  69
  70 /* Possible values for sh_type in Elf64_Shdr: */
  71
  72 #define SHT_IA_64_EXT           (SHT_LOPROC + 0)        /* Extension bits.  */
  73 #define SHT_IA_64_UNWIND        (SHT_LOPROC + 1)        /* Unwind bits.  */
  74 #define SHT_IA_64_LOPSREG       (SHT_LOPROC + 0x8000000)
  75 /* ABI says (SHT_LOPROC + 0xfffffff) but I think it's a typo -- this makes sense.  */
  76 #define SHT_IA_64_HIPSREG       (SHT_LOPROC + 0x8ffffff)
  77 #define SHT_IA_64_PRIORITY_INIT (SHT_LOPROC + 0x9000000)
  78
  79 /* SHT_IA_64_HP_OPT_ANOT is only generated by HPUX compilers for its
  80    optimization annotation section.  GCC does not generate it but we
  81    want readelf to know what they are.  Do not use two capital Ns in
  82    annotate or sed will turn it into 32 or 64 during the build.  */
  83 #define SHT_IA_64_HP_OPT_ANOT   0x60000004
  84
  85 /* OpenVMS section types.  */
  86 /* The section contains PC-to-source correlation information for use by the
  87    VMS RTL's traceback facility.  */
  88 #define SHT_IA_64_VMS_TRACE             0x60000000
  89 /* The section contains routine signature information for use by the
  90    translated image executive.  */
  91 #define SHT_IA_64_VMS_TIE_SIGNATURES    0x60000001
  92 /* The section contains dwarf-3 information.  */
  93 #define SHT_IA_64_VMS_DEBUG             0x60000002
  94 /* The section contains the dwarf-3 string table.  */
  95 #define SHT_IA_64_VMS_DEBUG_STR         0x60000003
  96 /* The section contains linkage information to perform consistency checking
  97    accross object modules.  */
  98 #define SHT_IA_64_VMS_LINKAGES          0x60000004
  99 /* The section allows the symbol vector in an image to be location through
 100    the section table.  */
 101 #define SHT_IA_64_VMS_SYMBOL_VECTOR     0x60000005
 102 /* The section contains inter-image fixups.  */
 103 #define SHT_IA_64_VMS_FIXUP             0x60000006
 104 /* The section contains unmangled name info.  */
 105 #define SHT_IA_64_VMS_DISPLAY_NAME_INFO 0x60000007
 106
 107 /* Bits in the p_flags field of Elf64_Phdr:  */
 108
 109 #define PF_IA_64_NORECOV        0x80000000
 110
 111 /* Possible values for p_type in Elf64_Phdr:  */
 112
 113 #define PT_IA_64_ARCHEXT        (PT_LOPROC + 0) /* Arch extension bits,  */
 114 #define PT_IA_64_UNWIND         (PT_LOPROC + 1) /* IA64 unwind bits.  */
 115
 116 /* HP-UX specific values for p_type in Elf64_Phdr.
 117    These values are currently just used to make
 118    readelf more usable on HP-UX.  */
 119
 120 #define PT_IA_64_HP_OPT_ANOT    (PT_LOOS + 0x12)
 121 #define PT_IA_64_HP_HSL_ANOT    (PT_LOOS + 0x13)
 122 #define PT_IA_64_HP_STACK       (PT_LOOS + 0x14)
 123
 124 /* Possible values for d_tag in Elf64_Dyn:  */
 125
 126 #define DT_IA_64_PLT_RESERVE    (DT_LOPROC + 0)
 127
 128 /* VMS specific values for d_tag in Elf64_Dyn:  */
 129
 130 #define DT_IA_64_VMS_SUBTYPE         (DT_LOOS + 0)
 131 #define DT_IA_64_VMS_IMGIOCNT        (DT_LOOS + 2)
 132 #define DT_IA_64_VMS_LNKFLAGS        (DT_LOOS + 8)
 133 #define DT_IA_64_VMS_VIR_MEM_BLK_SIZ (DT_LOOS + 10)
 134 #define DT_IA_64_VMS_IDENT           (DT_LOOS + 12)
 135 #define DT_IA_64_VMS_NEEDED_IDENT    (DT_LOOS + 16)
 136 #define DT_IA_64_VMS_IMG_RELA_CNT    (DT_LOOS + 18)
 137 #define DT_IA_64_VMS_SEG_RELA_CNT    (DT_LOOS + 20)
 138 #define DT_IA_64_VMS_FIXUP_RELA_CNT  (DT_LOOS + 22)
 139 #define DT_IA_64_VMS_FIXUP_NEEDED    (DT_LOOS + 24)
 140 #define DT_IA_64_VMS_SYMVEC_CNT      (DT_LOOS + 26)
 141 #define DT_IA_64_VMS_XLATED          (DT_LOOS + 30)
 142 #define DT_IA_64_VMS_STACKSIZE       (DT_LOOS + 32)
 143 #define DT_IA_64_VMS_UNWINDSZ        (DT_LOOS + 34)
 144 #define DT_IA_64_VMS_UNWIND_CODSEG   (DT_LOOS + 36)
 145 #define DT_IA_64_VMS_UNWIND_INFOSEG  (DT_LOOS + 38)
 146 #define DT_IA_64_VMS_LINKTIME        (DT_LOOS + 40)
 147 #define DT_IA_64_VMS_SEG_NO          (DT_LOOS + 42)
 148 #define DT_IA_64_VMS_SYMVEC_OFFSET   (DT_LOOS + 44)
 149 #define DT_IA_64_VMS_SYMVEC_SEG      (DT_LOOS + 46)
 150 #define DT_IA_64_VMS_UNWIND_OFFSET   (DT_LOOS + 48)
 151 #define DT_IA_64_VMS_UNWIND_SEG      (DT_LOOS + 50)
 152 #define DT_IA_64_VMS_STRTAB_OFFSET   (DT_LOOS + 52)
 153 #define DT_IA_64_VMS_SYSVER_OFFSET   (DT_LOOS + 54)
 154 #define DT_IA_64_VMS_IMG_RELA_OFF    (DT_LOOS + 56)
 155 #define DT_IA_64_VMS_SEG_RELA_OFF    (DT_LOOS + 58)
 156 #define DT_IA_64_VMS_FIXUP_RELA_OFF  (DT_LOOS + 60)
 157 #define DT_IA_64_VMS_PLTGOT_OFFSET   (DT_LOOS + 62)
 158 #define DT_IA_64_VMS_PLTGOT_SEG      (DT_LOOS + 64)
 159 #define DT_IA_64_VMS_FPMODE          (DT_LOOS + 66)
 160
 161 /* This section only used by HP-UX, The HP linker gives weak symbols
 162    precedence over regular common symbols.  We want common to override
 163    weak.  Using this common instead of SHN_COMMON does that.  */
 164 #define SHN_IA_64_ANSI_COMMON SHN_LORESERVE
 165
 166 /* This section is only used by OpenVMS.  Symbol is defined in the symbol
 167    vector (only possible for image files).  */
 168 #define SHN_IA_64_VMS_SYMVEC SHN_LOOS
 169
 170 /* IA64-specific relocation types: */
 171
 172 /* Relocs apply to specific instructions within a bundle.  The least
 173    significant 2 bits of the address indicate which instruction in the
 174    bundle the reloc refers to (0=first slot, 1=second slow, 2=third
 175    slot, 3=undefined) and the remaining bits give the address of the
 176    bundle (16 byte aligned).
 177
 178    The top 5 bits of the reloc code specifies the expression type, the
 179    low 3 bits the format of the data word being relocated.  */
 180
 181 #include "elf/reloc-macros.h"
 182
 183 START_RELOC_NUMBERS (elf_ia64_reloc_type)
 184   RELOC_NUMBER (R_IA64_NONE, 0x00)      /* none */
 185
 186   RELOC_NUMBER (R_IA64_IMM14, 0x21)     /* symbol + addend, add imm14 */
 187   RELOC_NUMBER (R_IA64_IMM22, 0x22)     /* symbol + addend, add imm22 */
 188   RELOC_NUMBER (R_IA64_IMM64, 0x23)     /* symbol + addend, mov imm64 */
 189   RELOC_NUMBER (R_IA64_DIR32MSB, 0x24)  /* symbol + addend, data4 MSB */
 190   RELOC_NUMBER (R_IA64_DIR32LSB, 0x25)  /* symbol + addend, data4 LSB */
 191   RELOC_NUMBER (R_IA64_DIR64MSB, 0x26)  /* symbol + addend, data8 MSB */
 192   RELOC_NUMBER (R_IA64_DIR64LSB, 0x27)  /* symbol + addend, data8 LSB */
 193
 194   RELOC_NUMBER (R_IA64_GPREL22, 0x2a)   /* @gprel(sym+add), add imm22 */
 195   RELOC_NUMBER (R_IA64_GPREL64I, 0x2b)  /* @gprel(sym+add), mov imm64 */
 196   RELOC_NUMBER (R_IA64_GPREL32MSB, 0x2c) /* @gprel(sym+add), data4 MSB */
 197   RELOC_NUMBER (R_IA64_GPREL32LSB, 0x2d) /* @gprel(sym+add), data4 LSB */
 198   RELOC_NUMBER (R_IA64_GPREL64MSB, 0x2e) /* @gprel(sym+add), data8 MSB */
 199   RELOC_NUMBER (R_IA64_GPREL64LSB, 0x2f) /* @gprel(sym+add), data8 LSB */
 200
 201   RELOC_NUMBER (R_IA64_LTOFF22, 0x32)   /* @ltoff(sym+add), add imm22 */
 202   RELOC_NUMBER (R_IA64_LTOFF64I, 0x33)  /* @ltoff(sym+add), mov imm64 */
 203
 204   RELOC_NUMBER (R_IA64_PLTOFF22, 0x3a)  /* @pltoff(sym+add), add imm22 */
 205   RELOC_NUMBER (R_IA64_PLTOFF64I, 0x3b) /* @pltoff(sym+add), mov imm64 */
 206   RELOC_NUMBER (R_IA64_PLTOFF64MSB, 0x3e) /* @pltoff(sym+add), data8 MSB */
 207   RELOC_NUMBER (R_IA64_PLTOFF64LSB, 0x3f) /* @pltoff(sym+add), data8 LSB */
 208
 209   RELOC_NUMBER (R_IA64_FPTR64I, 0x43)   /* @fptr(sym+add), mov imm64 */
 210   RELOC_NUMBER (R_IA64_FPTR32MSB, 0x44) /* @fptr(sym+add), data4 MSB */
 211   RELOC_NUMBER (R_IA64_FPTR32LSB, 0x45) /* @fptr(sym+add), data4 LSB */
 212   RELOC_NUMBER (R_IA64_FPTR64MSB, 0x46) /* @fptr(sym+add), data8 MSB */
 213   RELOC_NUMBER (R_IA64_FPTR64LSB, 0x47) /* @fptr(sym+add), data8 LSB */
 214
 215   RELOC_NUMBER (R_IA64_PCREL60B, 0x48)  /* @pcrel(sym+add), brl */
 216   RELOC_NUMBER (R_IA64_PCREL21B, 0x49)  /* @pcrel(sym+add), ptb, call */
 217   RELOC_NUMBER (R_IA64_PCREL21M, 0x4a)  /* @pcrel(sym+add), chk.s */
 218   RELOC_NUMBER (R_IA64_PCREL21F, 0x4b)  /* @pcrel(sym+add), fchkf */
 219   RELOC_NUMBER (R_IA64_PCREL32MSB, 0x4c) /* @pcrel(sym+add), data4 MSB */
 220   RELOC_NUMBER (R_IA64_PCREL32LSB, 0x4d) /* @pcrel(sym+add), data4 LSB */
 221   RELOC_NUMBER (R_IA64_PCREL64MSB, 0x4e) /* @pcrel(sym+add), data8 MSB */
 222   RELOC_NUMBER (R_IA64_PCREL64LSB, 0x4f) /* @pcrel(sym+add), data8 LSB */
 223
 224   RELOC_NUMBER (R_IA64_LTOFF_FPTR22, 0x52) /* @ltoff(@fptr(s+a)), imm22 */
 225   RELOC_NUMBER (R_IA64_LTOFF_FPTR64I, 0x53) /* @ltoff(@fptr(s+a)), imm64 */
 226   RELOC_NUMBER (R_IA64_LTOFF_FPTR32MSB, 0x54) /* @ltoff(@fptr(s+a)), 4 MSB */
 227   RELOC_NUMBER (R_IA64_LTOFF_FPTR32LSB, 0x55) /* @ltoff(@fptr(s+a)), 4 LSB */
 228   RELOC_NUMBER (R_IA64_LTOFF_FPTR64MSB, 0x56) /* @ltoff(@fptr(s+a)), 8 MSB */
 229   RELOC_NUMBER (R_IA64_LTOFF_FPTR64LSB, 0x57) /* @ltoff(@fptr(s+a)), 8 LSB */
 230
 231   RELOC_NUMBER (R_IA64_SEGREL32MSB, 0x5c) /* @segrel(sym+add), data4 MSB */
 232   RELOC_NUMBER (R_IA64_SEGREL32LSB, 0x5d) /* @segrel(sym+add), data4 LSB */
 233   RELOC_NUMBER (R_IA64_SEGREL64MSB, 0x5e) /* @segrel(sym+add), data8 MSB */
 234   RELOC_NUMBER (R_IA64_SEGREL64LSB, 0x5f) /* @segrel(sym+add), data8 LSB */
 235
 236   RELOC_NUMBER (R_IA64_SECREL32MSB, 0x64) /* @secrel(sym+add), data4 MSB */
 237   RELOC_NUMBER (R_IA64_SECREL32LSB, 0x65) /* @secrel(sym+add), data4 LSB */
 238   RELOC_NUMBER (R_IA64_SECREL64MSB, 0x66) /* @secrel(sym+add), data8 MSB */
 239   RELOC_NUMBER (R_IA64_SECREL64LSB, 0x67) /* @secrel(sym+add), data8 LSB */
 240
 241   RELOC_NUMBER (R_IA64_REL32MSB, 0x6c)  /* data 4 + REL */
 242   RELOC_NUMBER (R_IA64_REL32LSB, 0x6d)  /* data 4 + REL */
 243   RELOC_NUMBER (R_IA64_REL64MSB, 0x6e)  /* data 8 + REL */
 244   RELOC_NUMBER (R_IA64_REL64LSB, 0x6f)  /* data 8 + REL */
 245
 246   RELOC_NUMBER (R_IA64_LTV32MSB, 0x74)  /* symbol + addend, data4 MSB */
 247   RELOC_NUMBER (R_IA64_LTV32LSB, 0x75)  /* symbol + addend, data4 LSB */
 248   RELOC_NUMBER (R_IA64_LTV64MSB, 0x76)  /* symbol + addend, data8 MSB */
 249   RELOC_NUMBER (R_IA64_LTV64LSB, 0x77)  /* symbol + addend, data8 LSB */
 250
 251   RELOC_NUMBER (R_IA64_PCREL21BI, 0x79) /* @pcrel(sym+add), ptb, call */
 252   RELOC_NUMBER (R_IA64_PCREL22, 0x7a)   /* @pcrel(sym+add), imm22 */
 253   RELOC_NUMBER (R_IA64_PCREL64I, 0x7b)  /* @pcrel(sym+add), imm64 */
 254
 255   RELOC_NUMBER (R_IA64_IPLTMSB, 0x80)   /* dynamic reloc, imported PLT, MSB */
 256   RELOC_NUMBER (R_IA64_IPLTLSB, 0x81)   /* dynamic reloc, imported PLT, LSB */
 257   RELOC_NUMBER (R_IA64_COPY, 0x84)      /* dynamic reloc, data copy */
 258   RELOC_NUMBER (R_IA64_LTOFF22X, 0x86)  /* LTOFF22, relaxable.  */
 259   RELOC_NUMBER (R_IA64_LDXMOV, 0x87)    /* Use of LTOFF22X.  */
 260
 261   RELOC_NUMBER (R_IA64_TPREL14, 0x91)    /* @tprel(sym+add), add imm14 */
 262   RELOC_NUMBER (R_IA64_TPREL22, 0x92)    /* @tprel(sym+add), add imm22 */
 263   RELOC_NUMBER (R_IA64_TPREL64I, 0x93)   /* @tprel(sym+add), add imm64 */
 264   RELOC_NUMBER (R_IA64_TPREL64MSB, 0x96) /* @tprel(sym+add), data8 MSB */
 265   RELOC_NUMBER (R_IA64_TPREL64LSB, 0x97) /* @tprel(sym+add), data8 LSB */
 266
 267   RELOC_NUMBER (R_IA64_LTOFF_TPREL22, 0x9a) /* @ltoff(@tprel(s+a)), add imm22 */
 268
 269   RELOC_NUMBER (R_IA64_DTPMOD64MSB, 0xa6) /* @dtpmod(sym+add), data8 MSB */
 270   RELOC_NUMBER (R_IA64_DTPMOD64LSB, 0xa7) /* @dtpmod(sym+add), data8 LSB */
 271   RELOC_NUMBER (R_IA64_LTOFF_DTPMOD22, 0xaa) /* @ltoff(@dtpmod(s+a)), imm22 */
 272
 273   RELOC_NUMBER (R_IA64_DTPREL14, 0xb1)    /* @dtprel(sym+add), imm14 */
 274   RELOC_NUMBER (R_IA64_DTPREL22, 0xb2)    /* @dtprel(sym+add), imm22 */
 275   RELOC_NUMBER (R_IA64_DTPREL64I, 0xb3)   /* @dtprel(sym+add), imm64 */
 276   RELOC_NUMBER (R_IA64_DTPREL32MSB, 0xb4) /* @dtprel(sym+add), data4 MSB */
 277   RELOC_NUMBER (R_IA64_DTPREL32LSB, 0xb5) /* @dtprel(sym+add), data4 LSB */
 278   RELOC_NUMBER (R_IA64_DTPREL64MSB, 0xb6) /* @dtprel(sym+add), data8 MSB */
 279   RELOC_NUMBER (R_IA64_DTPREL64LSB, 0xb7) /* @dtprel(sym+add), data8 LSB */
 280
 281   RELOC_NUMBER (R_IA64_LTOFF_DTPREL22, 0xba) /* @ltoff(@dtprel(s+a)), imm22 */
 282
 283   FAKE_RELOC (R_IA64_MAX_RELOC_CODE, 0xba)
 284 END_RELOC_NUMBERS (R_IA64_max)
 285
 286 #endif /* _ELF_IA64_H */