include/elf/ia64.h

   1 /* IA-64 ELF support for BFD.
   2    Copyright (C) 1998, 1999, 2000 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
  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
  30 /* ??? These four definitions are not part of the SVR4 ABI.
  31    They were present in David's initial code drop, so it is probable
  32    that they are used by HP/UX.  */
  33 #define EF_IA_64_TRAPNIL (1 << 0)       /* trap NIL pointer dereferences */
  34 #define EF_IA_64_EXT     (1 << 2)       /* program uses arch. extensions */
  35 #define EF_IA_64_BE      (1 << 3)       /* PSR BE bit set (big-endian) */
  36 #define EFA_IA_64_EAS2_3 0x23000000     /* ia64 EAS 2.3 */
  37
  38 #define EF_IA_64_ABI64              (1 << 4) /* 64-bit ABI */
  39 /* Not used yet.  */
  40 #define EF_IA_64_REDUCEDFP          (1 << 5) /* Only FP6-FP11 used.  */
  41 #define EF_IA_64_CONS_GP            (1 << 6) /* gp as program wide constant. */
  42 #define EF_IA_64_NOFUNCDESC_CONS_GP (1 << 7) /* And no function descriptors. */
  43 /* Not used yet.  */
  44 #define EF_IA_64_ABSOLUTE           (1 << 8) /* Load at absolute addresses.  */
  45
  46 #define ELF_STRING_ia64_archext         ".IA_64.archext"
  47 #define ELF_STRING_ia64_pltoff          ".IA_64.pltoff"
  48 #define ELF_STRING_ia64_unwind          ".IA_64.unwind"
  49 #define ELF_STRING_ia64_unwind_info     ".IA_64.unwind_info"
  50
  51 /* Bits in the sh_flags field of Elf64_Shdr:  */
  52
  53 #define SHF_IA_64_SHORT         0x10000000      /* section near gp */
  54 #define SHF_IA_64_NORECOV       0x20000000      /* spec insns w/o recovery */
  55
  56 /* Possible values for sh_type in Elf64_Shdr: */
  57
  58 #define SHT_IA_64_EXT           (SHT_LOPROC + 0)        /* extension bits */
  59 #define SHT_IA_64_UNWIND        (SHT_LOPROC + 1)        /* unwind bits */
  60
  61 /* Bits in the p_flags field of Elf64_Phdr:  */
  62
  63 #define PF_IA_64_NORECOV        0x80000000
  64
  65 /* Possible values for p_type in Elf64_Phdr:  */
  66
  67 #define PT_IA_64_ARCHEXT        (PT_LOPROC + 0) /* arch extension bits */
  68 #define PT_IA_64_UNWIND         (PT_LOPROC + 1) /* ia64 unwind bits */
  69
  70 /* Possible values for d_tag in Elf64_Dyn:  */
  71
  72 #define DT_IA_64_PLT_RESERVE    (DT_LOPROC + 0)
  73
  74 /* ia64-specific relocation types: */
  75
  76 /* Relocs apply to specific instructions within a bundle.  The least
  77    significant 2 bits of the address indicate which instruction in the
  78    bundle the reloc refers to (0=first slot, 1=second slow, 2=third
  79    slot, 3=undefined) and the remaining bits give the address of the
  80    bundle (16 byte aligned).
  81
  82    The top 5 bits of the reloc code specifies the expression type, the
  83    low 3 bits the format of the data word being relocated.
  84
  85    ??? Relocations below marked ## are not part of the SVR4 processor
  86    suppliment.  They were present in David's initial code drop, so it
  87    is possible that they are used by HP/UX.  */
  88
  89 #include "elf/reloc-macros.h"
  90
  91 START_RELOC_NUMBERS (elf_ia64_reloc_type)
  92   RELOC_NUMBER (R_IA64_NONE, 0x00)      /* none */
  93
  94   RELOC_NUMBER (R_IA64_IMM14, 0x21)     /* symbol + addend, add imm14 */
  95   RELOC_NUMBER (R_IA64_IMM22, 0x22)     /* symbol + addend, add imm22 */
  96   RELOC_NUMBER (R_IA64_IMM64, 0x23)     /* symbol + addend, mov imm64 */
  97   RELOC_NUMBER (R_IA64_DIR32MSB, 0x24)  /* symbol + addend, data4 MSB */
  98   RELOC_NUMBER (R_IA64_DIR32LSB, 0x25)  /* symbol + addend, data4 LSB */
  99   RELOC_NUMBER (R_IA64_DIR64MSB, 0x26)  /* symbol + addend, data8 MSB */
 100   RELOC_NUMBER (R_IA64_DIR64LSB, 0x27)  /* symbol + addend, data8 LSB */
 101
 102   RELOC_NUMBER (R_IA64_GPREL22, 0x2a)   /* @gprel(sym + add), add imm22 */
 103   RELOC_NUMBER (R_IA64_GPREL64I, 0x2b)  /* @gprel(sym + add), mov imm64 */
 104   RELOC_NUMBER (R_IA64_GPREL32MSB, 0x2c) /* @gprel(sym + add), data4 MSB ## */
 105   RELOC_NUMBER (R_IA64_GPREL32LSB, 0x2d) /* @gprel(sym + add), data4 LSB ## */
 106   RELOC_NUMBER (R_IA64_GPREL64MSB, 0x2e) /* @gprel(sym + add), data8 MSB */
 107   RELOC_NUMBER (R_IA64_GPREL64LSB, 0x2f) /* @gprel(sym + add), data8 LSB */
 108
 109   RELOC_NUMBER (R_IA64_LTOFF22, 0x32)   /* @ltoff(sym + add), add imm22 */
 110   RELOC_NUMBER (R_IA64_LTOFF64I, 0x33)  /* @ltoff(sym + add), mov imm64 */
 111
 112   RELOC_NUMBER (R_IA64_PLTOFF22, 0x3a)  /* @pltoff(sym + add), add imm22 */
 113   RELOC_NUMBER (R_IA64_PLTOFF64I, 0x3b) /* @pltoff(sym + add), mov imm64 */
 114   RELOC_NUMBER (R_IA64_PLTOFF64MSB, 0x3e) /* @pltoff(sym + add), data8 MSB */
 115   RELOC_NUMBER (R_IA64_PLTOFF64LSB, 0x3f) /* @pltoff(sym + add), data8 LSB */
 116
 117   RELOC_NUMBER (R_IA64_FPTR64I, 0x43)   /* @fptr(sym + add), mov imm64 */
 118   RELOC_NUMBER (R_IA64_FPTR32MSB, 0x44) /* @fptr(sym + add), data4 MSB */
 119   RELOC_NUMBER (R_IA64_FPTR32LSB, 0x45) /* @fptr(sym + add), data4 LSB */
 120   RELOC_NUMBER (R_IA64_FPTR64MSB, 0x46) /* @fptr(sym + add), data8 MSB */
 121   RELOC_NUMBER (R_IA64_FPTR64LSB, 0x47) /* @fptr(sym + add), data8 LSB */
 122
 123   RELOC_NUMBER (R_IA64_PCREL60B, 0x48)  /* @pcrel(sym + add), brl */
 124   RELOC_NUMBER (R_IA64_PCREL21B, 0x49)  /* @pcrel(sym + add), ptb, call */
 125   RELOC_NUMBER (R_IA64_PCREL21M, 0x4a)  /* @pcrel(sym + add), chk.s */
 126   RELOC_NUMBER (R_IA64_PCREL21F, 0x4b)  /* @pcrel(sym + add), fchkf */
 127   RELOC_NUMBER (R_IA64_PCREL32MSB, 0x4c) /* @pcrel(sym + add), data4 MSB */
 128   RELOC_NUMBER (R_IA64_PCREL32LSB, 0x4d) /* @pcrel(sym + add), data4 LSB */
 129   RELOC_NUMBER (R_IA64_PCREL64MSB, 0x4e) /* @pcrel(sym + add), data8 MSB */
 130   RELOC_NUMBER (R_IA64_PCREL64LSB, 0x4f) /* @pcrel(sym + add), data8 LSB */
 131
 132   RELOC_NUMBER (R_IA64_LTOFF_FPTR22, 0x52) /* @ltoff(@fptr(s+a)), imm22 */
 133   RELOC_NUMBER (R_IA64_LTOFF_FPTR64I, 0x53) /* @ltoff(@fptr(s+a)), imm64 */
 134   RELOC_NUMBER (R_IA64_LTOFF_FPTR64MSB, 0x56) /* @ltoff(@fptr(s+a)), 8 MSB ##*/
 135   RELOC_NUMBER (R_IA64_LTOFF_FPTR64LSB, 0x57) /* @ltoff(@fptr(s+a)), 8 LSB ##*/
 136
 137   RELOC_NUMBER (R_IA64_SEGBASE, 0x58)   /* set segment base for @segrel ## */
 138   RELOC_NUMBER (R_IA64_SEGREL32MSB, 0x5c) /* @segrel(sym + add), data4 MSB */
 139   RELOC_NUMBER (R_IA64_SEGREL32LSB, 0x5d) /* @segrel(sym + add), data4 LSB */
 140   RELOC_NUMBER (R_IA64_SEGREL64MSB, 0x5e) /* @segrel(sym + add), data8 MSB */
 141   RELOC_NUMBER (R_IA64_SEGREL64LSB, 0x5f) /* @segrel(sym + add), data8 LSB */
 142
 143   RELOC_NUMBER (R_IA64_SECREL32MSB, 0x64) /* @secrel(sym + add), data4 MSB */
 144   RELOC_NUMBER (R_IA64_SECREL32LSB, 0x65) /* @secrel(sym + add), data4 LSB */
 145   RELOC_NUMBER (R_IA64_SECREL64MSB, 0x66) /* @secrel(sym + add), data8 MSB */
 146   RELOC_NUMBER (R_IA64_SECREL64LSB, 0x67) /* @secrel(sym + add), data8 LSB */
 147
 148   RELOC_NUMBER (R_IA64_REL32MSB, 0x6c)  /* data 4 + REL */
 149   RELOC_NUMBER (R_IA64_REL32LSB, 0x6d)  /* data 4 + REL */
 150   RELOC_NUMBER (R_IA64_REL64MSB, 0x6e)  /* data 8 + REL */
 151   RELOC_NUMBER (R_IA64_REL64LSB, 0x6f)  /* data 8 + REL */
 152
 153   RELOC_NUMBER (R_IA64_LTV32MSB, 0x70)  /* symbol + addend, data4 MSB */
 154   RELOC_NUMBER (R_IA64_LTV32LSB, 0x71)  /* symbol + addend, data4 LSB */
 155   RELOC_NUMBER (R_IA64_LTV64MSB, 0x72)  /* symbol + addend, data8 MSB */
 156   RELOC_NUMBER (R_IA64_LTV64LSB, 0x73)  /* symbol + addend, data8 LSB */
 157
 158   RELOC_NUMBER (R_IA64_PCREL21BI, 0x79) /* @pcrel(sym + add), ptb, call */
 159   RELOC_NUMBER (R_IA64_PCREL22, 0x7a)   /* @pcrel(sym + add), imm22 */
 160   RELOC_NUMBER (R_IA64_PCREL64I, 0x7b)  /* @pcrel(sym + add), imm64 */
 161
 162   RELOC_NUMBER (R_IA64_IPLTMSB, 0x80)   /* dynamic reloc, imported PLT, MSB */
 163   RELOC_NUMBER (R_IA64_IPLTLSB, 0x81)   /* dynamic reloc, imported PLT, LSB */
 164   RELOC_NUMBER (R_IA64_EPLTMSB, 0x82)   /* dynamic reloc, exported PLT, ## */
 165   RELOC_NUMBER (R_IA64_EPLTLSB, 0x83)   /* dynamic reloc, exported PLT, ## */
 166   RELOC_NUMBER (R_IA64_COPY, 0x84)      /* dynamic reloc, data copy ## */
 167   RELOC_NUMBER (R_IA64_LTOFF22X, 0x86)  /* LTOFF22, relaxable.  */
 168   RELOC_NUMBER (R_IA64_LDXMOV, 0x87)    /* Use of LTOFF22X.  */
 169
 170   RELOC_NUMBER (R_IA64_TPREL22, 0x92)    /* sym-TP+add, add imm22 ## */
 171   RELOC_NUMBER (R_IA64_TPREL64MSB, 0x96) /* sym-TP+add, data8 MSB ## */
 172   RELOC_NUMBER (R_IA64_TPREL64LSB, 0x97) /* sym-TP+add, data8 LSB ## */
 173
 174   RELOC_NUMBER (R_IA64_LTOFF_TP22, 0x9a) /* @ltoff(sym-TP+add), add imm22 ## */
 175
 176   FAKE_RELOC (R_IA64_MAX_RELOC_CODE, 0x9a)
 177 END_RELOC_NUMBERS (R_IA64_max)
 178
 179 #endif /* _ELF_IA64_H */