include/elf/ia64.h

   1 /* IA-64 ELF support for BFD.
   2    Copyright 1998, 1999, 2000, 2003 Free Software Foundation, Inc.
   3    Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
   4
   5    This file is part of BFD, the Binary File Descriptor library.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #ifndef _ELF_IA64_H
  22 #define _ELF_IA64_H
  23
  24 /* Bits in the e_flags field of the Elf64_Ehdr:  */
  25
  26 #define EF_IA_64_MASKOS  0x0000000f     /* OS-specific flags.  */
  27 #define EF_IA_64_ARCH    0xff000000     /* Arch. version mask.  */
  28
  29 /* ??? These four definitions are not part of the SVR4 ABI.
  30    They were present in David's initial code drop, so it is probable
  31    that they are used by HP/UX.  */
  32 #define EF_IA_64_TRAPNIL (1 << 0)       /* Trap NIL pointer dereferences.  */
  33 #define EF_IA_64_EXT     (1 << 2)       /* Program uses arch. extensions.  */
  34 #define EF_IA_64_BE      (1 << 3)       /* PSR BE bit set (big-endian).  */
  35 #define EFA_IA_64_EAS2_3 0x23000000     /* IA64 EAS 2.3.  */
  36
  37 #define EF_IA_64_ABI64              (1 << 4) /* 64-bit ABI.  */
  38 /* Not used yet.  */
  39 #define EF_IA_64_REDUCEDFP          (1 << 5) /* Only FP6-FP11 used.  */
  40 #define EF_IA_64_CONS_GP            (1 << 6) /* gp as program wide constant.  */
  41 #define EF_IA_64_NOFUNCDESC_CONS_GP (1 << 7) /* And no function descriptors.  */
  42 /* Not used yet.  */
  43 #define EF_IA_64_ABSOLUTE           (1 << 8) /* Load at absolute addresses.  */
  44
  45 #define ELF_STRING_ia64_archext         ".IA_64.archext"
  46 #define ELF_STRING_ia64_pltoff          ".IA_64.pltoff"
  47 #define ELF_STRING_ia64_unwind          ".IA_64.unwind"
  48 #define ELF_STRING_ia64_unwind_info     ".IA_64.unwind_info"
  49 #define ELF_STRING_ia64_unwind_once     ".gnu.linkonce.ia64unw."
  50 #define ELF_STRING_ia64_unwind_info_once ".gnu.linkonce.ia64unwi."
  51 /* .IA_64.unwind_hdr is only used by HP-UX.  */
  52 #define ELF_STRING_ia64_unwind_hdr      ".IA_64.unwind_hdr"
  53
  54 /* Bits in the sh_flags field of Elf64_Shdr:  */
  55
  56 #define SHF_IA_64_SHORT         0x10000000      /* Section near gp.  */
  57 #define SHF_IA_64_NORECOV       0x20000000      /* Spec insns w/o recovery.  */
  58
  59 /* Possible values for sh_type in Elf64_Shdr: */
  60
  61 #define SHT_IA_64_EXT           (SHT_LOPROC + 0)        /* Extension bits.  */
  62 #define SHT_IA_64_UNWIND        (SHT_LOPROC + 1)        /* Unwind bits.  */
  63 #define SHT_IA_64_LOPSREG       (SHT_LOPROC + 0x8000000)
  64 /* ABI says (SHT_LOPROC + 0xfffffff) but I think it's a typo -- this makes sense.  */
  65 #define SHT_IA_64_HIPSREG       (SHT_LOPROC + 0x8ffffff)
  66 #define SHT_IA_64_PRIORITY_INIT (SHT_LOPROC + 0x9000000)
  67
  68 /* SHT_IA_64_HP_OPT_ANOT is only generated by HPUX compilers for its
  69    optimization annotation section.  GCC does not generate it but we
  70    want readelf to know what they are.  Do not use two capital Ns in
  71    annotate or sed will turn it into 32 or 64 during the build.  */
  72 #define SHT_IA_64_HP_OPT_ANOT   0x60000004
  73
  74 /* Bits in the p_flags field of Elf64_Phdr:  */
  75
  76 #define PF_IA_64_NORECOV        0x80000000
  77
  78 /* Possible values for p_type in Elf64_Phdr:  */
  79
  80 #define PT_IA_64_ARCHEXT        (PT_LOPROC + 0) /* Arch extension bits,  */
  81 #define PT_IA_64_UNWIND         (PT_LOPROC + 1) /* IA64 unwind bits.  */
  82
  83 /* HP-UX specific values for p_type in Elf64_Phdr.
  84    These values are currently just used to make
  85    readelf more usable on HP-UX.  */
  86
  87 #define PT_IA_64_HP_OPT_ANOT    (PT_LOOS + 0x12)
  88 #define PT_IA_64_HP_HSL_ANOT    (PT_LOOS + 0x13)
  89 #define PT_IA_64_HP_STACK       (PT_LOOS + 0x14)
  90
  91 /* Possible values for d_tag in Elf64_Dyn:  */
  92
  93 #define DT_IA_64_PLT_RESERVE    (DT_LOPROC + 0)
  94
  95 /* This section only used by HP-UX, The HP linker gives weak symbols
  96    precedence over regular common symbols.  We want common to override
  97    weak.  Using this common instead of SHN_COMMON does that.  */
  98 #define SHN_IA_64_ANSI_COMMON 0xFF00
  99
 100 /* IA64-specific relocation types: */
 101
 102 /* Relocs apply to specific instructions within a bundle.  The least
 103    significant 2 bits of the address indicate which instruction in the
 104    bundle the reloc refers to (0=first slot, 1=second slow, 2=third
 105    slot, 3=undefined) and the remaining bits give the address of the
 106    bundle (16 byte aligned).
 107
 108    The top 5 bits of the reloc code specifies the expression type, the
 109    low 3 bits the format of the data word being relocated.  */
 110
 111 #include "elf/reloc-macros.h"
 112
 113 START_RELOC_NUMBERS (elf_ia64_reloc_type)
 114   RELOC_NUMBER (R_IA64_NONE, 0x00)      /* none */
 115
 116   RELOC_NUMBER (R_IA64_IMM14, 0x21)     /* symbol + addend, add imm14 */
 117   RELOC_NUMBER (R_IA64_IMM22, 0x22)     /* symbol + addend, add imm22 */
 118   RELOC_NUMBER (R_IA64_IMM64, 0x23)     /* symbol + addend, mov imm64 */
 119   RELOC_NUMBER (R_IA64_DIR32MSB, 0x24)  /* symbol + addend, data4 MSB */
 120   RELOC_NUMBER (R_IA64_DIR32LSB, 0x25)  /* symbol + addend, data4 LSB */
 121   RELOC_NUMBER (R_IA64_DIR64MSB, 0x26)  /* symbol + addend, data8 MSB */
 122   RELOC_NUMBER (R_IA64_DIR64LSB, 0x27)  /* symbol + addend, data8 LSB */
 123
 124   RELOC_NUMBER (R_IA64_GPREL22, 0x2a)   /* @gprel(sym+add), add imm22 */
 125   RELOC_NUMBER (R_IA64_GPREL64I, 0x2b)  /* @gprel(sym+add), mov imm64 */
 126   RELOC_NUMBER (R_IA64_GPREL32MSB, 0x2c) /* @gprel(sym+add), data4 MSB */
 127   RELOC_NUMBER (R_IA64_GPREL32LSB, 0x2d) /* @gprel(sym+add), data4 LSB */
 128   RELOC_NUMBER (R_IA64_GPREL64MSB, 0x2e) /* @gprel(sym+add), data8 MSB */
 129   RELOC_NUMBER (R_IA64_GPREL64LSB, 0x2f) /* @gprel(sym+add), data8 LSB */
 130
 131   RELOC_NUMBER (R_IA64_LTOFF22, 0x32)   /* @ltoff(sym+add), add imm22 */
 132   RELOC_NUMBER (R_IA64_LTOFF64I, 0x33)  /* @ltoff(sym+add), mov imm64 */
 133
 134   RELOC_NUMBER (R_IA64_PLTOFF22, 0x3a)  /* @pltoff(sym+add), add imm22 */
 135   RELOC_NUMBER (R_IA64_PLTOFF64I, 0x3b) /* @pltoff(sym+add), mov imm64 */
 136   RELOC_NUMBER (R_IA64_PLTOFF64MSB, 0x3e) /* @pltoff(sym+add), data8 MSB */
 137   RELOC_NUMBER (R_IA64_PLTOFF64LSB, 0x3f) /* @pltoff(sym+add), data8 LSB */
 138
 139   RELOC_NUMBER (R_IA64_FPTR64I, 0x43)   /* @fptr(sym+add), mov imm64 */
 140   RELOC_NUMBER (R_IA64_FPTR32MSB, 0x44) /* @fptr(sym+add), data4 MSB */
 141   RELOC_NUMBER (R_IA64_FPTR32LSB, 0x45) /* @fptr(sym+add), data4 LSB */
 142   RELOC_NUMBER (R_IA64_FPTR64MSB, 0x46) /* @fptr(sym+add), data8 MSB */
 143   RELOC_NUMBER (R_IA64_FPTR64LSB, 0x47) /* @fptr(sym+add), data8 LSB */
 144
 145   RELOC_NUMBER (R_IA64_PCREL60B, 0x48)  /* @pcrel(sym+add), brl */
 146   RELOC_NUMBER (R_IA64_PCREL21B, 0x49)  /* @pcrel(sym+add), ptb, call */
 147   RELOC_NUMBER (R_IA64_PCREL21M, 0x4a)  /* @pcrel(sym+add), chk.s */
 148   RELOC_NUMBER (R_IA64_PCREL21F, 0x4b)  /* @pcrel(sym+add), fchkf */
 149   RELOC_NUMBER (R_IA64_PCREL32MSB, 0x4c) /* @pcrel(sym+add), data4 MSB */
 150   RELOC_NUMBER (R_IA64_PCREL32LSB, 0x4d) /* @pcrel(sym+add), data4 LSB */
 151   RELOC_NUMBER (R_IA64_PCREL64MSB, 0x4e) /* @pcrel(sym+add), data8 MSB */
 152   RELOC_NUMBER (R_IA64_PCREL64LSB, 0x4f) /* @pcrel(sym+add), data8 LSB */
 153
 154   RELOC_NUMBER (R_IA64_LTOFF_FPTR22, 0x52) /* @ltoff(@fptr(s+a)), imm22 */
 155   RELOC_NUMBER (R_IA64_LTOFF_FPTR64I, 0x53) /* @ltoff(@fptr(s+a)), imm64 */
 156   RELOC_NUMBER (R_IA64_LTOFF_FPTR32MSB, 0x54) /* @ltoff(@fptr(s+a)), 4 MSB */
 157   RELOC_NUMBER (R_IA64_LTOFF_FPTR32LSB, 0x55) /* @ltoff(@fptr(s+a)), 4 LSB */
 158   RELOC_NUMBER (R_IA64_LTOFF_FPTR64MSB, 0x56) /* @ltoff(@fptr(s+a)), 8 MSB */
 159   RELOC_NUMBER (R_IA64_LTOFF_FPTR64LSB, 0x57) /* @ltoff(@fptr(s+a)), 8 LSB */
 160
 161   RELOC_NUMBER (R_IA64_SEGREL32MSB, 0x5c) /* @segrel(sym+add), data4 MSB */
 162   RELOC_NUMBER (R_IA64_SEGREL32LSB, 0x5d) /* @segrel(sym+add), data4 LSB */
 163   RELOC_NUMBER (R_IA64_SEGREL64MSB, 0x5e) /* @segrel(sym+add), data8 MSB */
 164   RELOC_NUMBER (R_IA64_SEGREL64LSB, 0x5f) /* @segrel(sym+add), data8 LSB */
 165
 166   RELOC_NUMBER (R_IA64_SECREL32MSB, 0x64) /* @secrel(sym+add), data4 MSB */
 167   RELOC_NUMBER (R_IA64_SECREL32LSB, 0x65) /* @secrel(sym+add), data4 LSB */
 168   RELOC_NUMBER (R_IA64_SECREL64MSB, 0x66) /* @secrel(sym+add), data8 MSB */
 169   RELOC_NUMBER (R_IA64_SECREL64LSB, 0x67) /* @secrel(sym+add), data8 LSB */
 170
 171   RELOC_NUMBER (R_IA64_REL32MSB, 0x6c)  /* data 4 + REL */
 172   RELOC_NUMBER (R_IA64_REL32LSB, 0x6d)  /* data 4 + REL */
 173   RELOC_NUMBER (R_IA64_REL64MSB, 0x6e)  /* data 8 + REL */
 174   RELOC_NUMBER (R_IA64_REL64LSB, 0x6f)  /* data 8 + REL */
 175
 176   RELOC_NUMBER (R_IA64_LTV32MSB, 0x74)  /* symbol + addend, data4 MSB */
 177   RELOC_NUMBER (R_IA64_LTV32LSB, 0x75)  /* symbol + addend, data4 LSB */
 178   RELOC_NUMBER (R_IA64_LTV64MSB, 0x76)  /* symbol + addend, data8 MSB */
 179   RELOC_NUMBER (R_IA64_LTV64LSB, 0x77)  /* symbol + addend, data8 LSB */
 180
 181   RELOC_NUMBER (R_IA64_PCREL21BI, 0x79) /* @pcrel(sym+add), ptb, call */
 182   RELOC_NUMBER (R_IA64_PCREL22, 0x7a)   /* @pcrel(sym+add), imm22 */
 183   RELOC_NUMBER (R_IA64_PCREL64I, 0x7b)  /* @pcrel(sym+add), imm64 */
 184
 185   RELOC_NUMBER (R_IA64_IPLTMSB, 0x80)   /* dynamic reloc, imported PLT, MSB */
 186   RELOC_NUMBER (R_IA64_IPLTLSB, 0x81)   /* dynamic reloc, imported PLT, LSB */
 187   RELOC_NUMBER (R_IA64_COPY, 0x84)      /* dynamic reloc, data copy */
 188   RELOC_NUMBER (R_IA64_LTOFF22X, 0x86)  /* LTOFF22, relaxable.  */
 189   RELOC_NUMBER (R_IA64_LDXMOV, 0x87)    /* Use of LTOFF22X.  */
 190
 191   RELOC_NUMBER (R_IA64_TPREL14, 0x91)    /* @tprel(sym+add), add imm14 */
 192   RELOC_NUMBER (R_IA64_TPREL22, 0x92)    /* @tprel(sym+add), add imm22 */
 193   RELOC_NUMBER (R_IA64_TPREL64I, 0x93)   /* @tprel(sym+add), add imm64 */
 194   RELOC_NUMBER (R_IA64_TPREL64MSB, 0x96) /* @tprel(sym+add), data8 MSB */
 195   RELOC_NUMBER (R_IA64_TPREL64LSB, 0x97) /* @tprel(sym+add), data8 LSB */
 196
 197   RELOC_NUMBER (R_IA64_LTOFF_TPREL22, 0x9a) /* @ltoff(@tprel(s+a)), add imm22 */
 198
 199   RELOC_NUMBER (R_IA64_DTPMOD64MSB, 0xa6) /* @dtpmod(sym+add), data8 MSB */
 200   RELOC_NUMBER (R_IA64_DTPMOD64LSB, 0xa7) /* @dtpmod(sym+add), data8 LSB */
 201   RELOC_NUMBER (R_IA64_LTOFF_DTPMOD22, 0xaa) /* @ltoff(@dtpmod(s+a)), imm22 */
 202
 203   RELOC_NUMBER (R_IA64_DTPREL14, 0xb1)    /* @dtprel(sym+add), imm14 */
 204   RELOC_NUMBER (R_IA64_DTPREL22, 0xb2)    /* @dtprel(sym+add), imm22 */
 205   RELOC_NUMBER (R_IA64_DTPREL64I, 0xb3)   /* @dtprel(sym+add), imm64 */
 206   RELOC_NUMBER (R_IA64_DTPREL32MSB, 0xb4) /* @dtprel(sym+add), data4 MSB */
 207   RELOC_NUMBER (R_IA64_DTPREL32LSB, 0xb5) /* @dtprel(sym+add), data4 LSB */
 208   RELOC_NUMBER (R_IA64_DTPREL64MSB, 0xb6) /* @dtprel(sym+add), data8 MSB */
 209   RELOC_NUMBER (R_IA64_DTPREL64LSB, 0xb7) /* @dtprel(sym+add), data8 LSB */
 210
 211   RELOC_NUMBER (R_IA64_LTOFF_DTPREL22, 0xba) /* @ltoff(@dtprel(s+a)), imm22 */
 212
 213   FAKE_RELOC (R_IA64_MAX_RELOC_CODE, 0xba)
 214 END_RELOC_NUMBERS (R_IA64_max)
 215
 216 #endif /* _ELF_IA64_H */