include/elf/ppc.h

   1 /* PPC ELF support for BFD.
   2    Copyright 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
   3
   4    By Michael Meissner, Cygnus Support, <meissner@cygnus.com>, from information
   5    in the System V Application Binary Interface, PowerPC Processor Supplement
   6    and the PowerPC Embedded Application Binary Interface (eabi).
   7
   8 This file is part of BFD, the Binary File Descriptor library.
   9
  10 This program is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2 of the License, or
  13 (at your option) any later version.
  14
  15 This program is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with this program; if not, write to the Free Software
  22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  23
  24 /* This file holds definitions specific to the PPC ELF ABI.  Note
  25    that most of this is not actually implemented by BFD.  */
  26
  27 #ifndef _ELF_PPC_H
  28 #define _ELF_PPC_H
  29
  30 #include "elf/reloc-macros.h"
  31
  32 /* Relocations.  */
  33 START_RELOC_NUMBERS (elf_ppc_reloc_type)
  34   RELOC_NUMBER (R_PPC_NONE, 0)
  35   RELOC_NUMBER (R_PPC_ADDR32, 1)
  36   RELOC_NUMBER (R_PPC_ADDR24, 2)
  37   RELOC_NUMBER (R_PPC_ADDR16, 3)
  38   RELOC_NUMBER (R_PPC_ADDR16_LO, 4)
  39   RELOC_NUMBER (R_PPC_ADDR16_HI, 5)
  40   RELOC_NUMBER (R_PPC_ADDR16_HA, 6)
  41   RELOC_NUMBER (R_PPC_ADDR14, 7)
  42   RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN, 8)
  43   RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN, 9)
  44   RELOC_NUMBER (R_PPC_REL24, 10)
  45   RELOC_NUMBER (R_PPC_REL14, 11)
  46   RELOC_NUMBER (R_PPC_REL14_BRTAKEN, 12)
  47   RELOC_NUMBER (R_PPC_REL14_BRNTAKEN, 13)
  48   RELOC_NUMBER (R_PPC_GOT16, 14)
  49   RELOC_NUMBER (R_PPC_GOT16_LO, 15)
  50   RELOC_NUMBER (R_PPC_GOT16_HI, 16)
  51   RELOC_NUMBER (R_PPC_GOT16_HA, 17)
  52   RELOC_NUMBER (R_PPC_PLTREL24, 18)
  53   RELOC_NUMBER (R_PPC_COPY, 19)
  54   RELOC_NUMBER (R_PPC_GLOB_DAT, 20)
  55   RELOC_NUMBER (R_PPC_JMP_SLOT, 21)
  56   RELOC_NUMBER (R_PPC_RELATIVE, 22)
  57   RELOC_NUMBER (R_PPC_LOCAL24PC, 23)
  58   RELOC_NUMBER (R_PPC_UADDR32, 24)
  59   RELOC_NUMBER (R_PPC_UADDR16, 25)
  60   RELOC_NUMBER (R_PPC_REL32, 26)
  61   RELOC_NUMBER (R_PPC_PLT32, 27)
  62   RELOC_NUMBER (R_PPC_PLTREL32, 28)
  63   RELOC_NUMBER (R_PPC_PLT16_LO, 29)
  64   RELOC_NUMBER (R_PPC_PLT16_HI, 30)
  65   RELOC_NUMBER (R_PPC_PLT16_HA, 31)
  66   RELOC_NUMBER (R_PPC_SDAREL16, 32)
  67   RELOC_NUMBER (R_PPC_SECTOFF, 33)
  68   RELOC_NUMBER (R_PPC_SECTOFF_LO, 34)
  69   RELOC_NUMBER (R_PPC_SECTOFF_HI, 35)
  70   RELOC_NUMBER (R_PPC_SECTOFF_HA, 36)
  71   RELOC_NUMBER (R_PPC_ADDR30, 37)
  72
  73 /* The following relocs are from the 64-bit PowerPC ELF ABI. */
  74   RELOC_NUMBER (R_PPC64_ADDR64,          38)
  75   RELOC_NUMBER (R_PPC64_ADDR16_HIGHER,   39)
  76   RELOC_NUMBER (R_PPC64_ADDR16_HIGHERA,  40)
  77   RELOC_NUMBER (R_PPC64_ADDR16_HIGHEST,  41)
  78   RELOC_NUMBER (R_PPC64_ADDR16_HIGHESTA, 42)
  79   RELOC_NUMBER (R_PPC64_UADDR64,         43)
  80   RELOC_NUMBER (R_PPC64_REL64,           44)
  81   RELOC_NUMBER (R_PPC64_PLT64,           45)
  82   RELOC_NUMBER (R_PPC64_PLTREL64,        46)
  83   RELOC_NUMBER (R_PPC64_TOC16,           47)
  84   RELOC_NUMBER (R_PPC64_TOC16_LO,        48)
  85   RELOC_NUMBER (R_PPC64_TOC16_HI,        49)
  86   RELOC_NUMBER (R_PPC64_TOC16_HA,        50)
  87   RELOC_NUMBER (R_PPC64_TOC,             51)
  88   RELOC_NUMBER (R_PPC64_PLTGOT16,        52)
  89   RELOC_NUMBER (R_PPC64_PLTGOT16_LO,     53)
  90   RELOC_NUMBER (R_PPC64_PLTGOT16_HI,     54)
  91   RELOC_NUMBER (R_PPC64_PLTGOT16_HA,     55)
  92
  93 /* The following relocs were added in the 64-bit PowerPC ELF ABI revision 1.2. */
  94   RELOC_NUMBER (R_PPC64_ADDR16_DS,       56)
  95   RELOC_NUMBER (R_PPC64_ADDR16_LO_DS,    57)
  96   RELOC_NUMBER (R_PPC64_GOT16_DS,        58)
  97   RELOC_NUMBER (R_PPC64_GOT16_LO_DS,     59)
  98   RELOC_NUMBER (R_PPC64_PLT16_LO_DS,     60)
  99   RELOC_NUMBER (R_PPC64_SECTOFF_DS,      61)
 100   RELOC_NUMBER (R_PPC64_SECTOFF_LO_DS,   62)
 101   RELOC_NUMBER (R_PPC64_TOC16_DS,        63)
 102   RELOC_NUMBER (R_PPC64_TOC16_LO_DS,     64)
 103   RELOC_NUMBER (R_PPC64_PLTGOT16_DS,     65)
 104   RELOC_NUMBER (R_PPC64_PLTGOT16_LO_DS,  66)
 105
 106 /* The remaining relocs are from the Embedded ELF ABI, and are not
 107    in the SVR4 ELF ABI.  */
 108   RELOC_NUMBER (R_PPC_EMB_NADDR32, 101)
 109   RELOC_NUMBER (R_PPC_EMB_NADDR16, 102)
 110   RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103)
 111   RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104)
 112   RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105)
 113   RELOC_NUMBER (R_PPC_EMB_SDAI16, 106)
 114   RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107)
 115   RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108)
 116   RELOC_NUMBER (R_PPC_EMB_SDA21, 109)
 117   RELOC_NUMBER (R_PPC_EMB_MRKREF, 110)
 118   RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111)
 119   RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112)
 120   RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113)
 121   RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114)
 122   RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115)
 123   RELOC_NUMBER (R_PPC_EMB_RELSDA, 116)
 124
 125   /* These are GNU extensions to enable C++ vtable garbage collection.  */
 126   RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253)
 127   RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254)
 128
 129 /* This is a phony reloc to handle any old fashioned TOC16 references
 130    that may still be in object files.  */
 131   RELOC_NUMBER (R_PPC_TOC16, 255)
 132
 133 END_RELOC_NUMBERS (R_PPC_max)
 134
 135 /* Aliases for R_PPC64-relocs. */
 136 #define R_PPC64_NONE              R_PPC_NONE
 137 #define R_PPC64_ADDR32            R_PPC_ADDR32
 138 #define R_PPC64_ADDR24            R_PPC_ADDR24
 139 #define R_PPC64_ADDR16            R_PPC_ADDR16
 140 #define R_PPC64_ADDR16_LO         R_PPC_ADDR16_LO
 141 #define R_PPC64_ADDR16_HI         R_PPC_ADDR16_HI
 142 #define R_PPC64_ADDR16_HA         R_PPC_ADDR16_HA
 143 #define R_PPC64_ADDR14            R_PPC_ADDR14
 144 #define R_PPC64_ADDR14_BRTAKEN    R_PPC_ADDR14_BRTAKEN
 145 #define R_PPC64_ADDR14_BRNTAKEN   R_PPC_ADDR14_BRNTAKEN
 146 #define R_PPC64_REL24             R_PPC_REL24
 147 #define R_PPC64_REL14             R_PPC_REL14
 148 #define R_PPC64_REL14_BRTAKEN     R_PPC_REL14_BRTAKEN
 149 #define R_PPC64_REL14_BRNTAKEN    R_PPC_REL14_BRNTAKEN
 150 #define R_PPC64_GOT16             R_PPC_GOT16
 151 #define R_PPC64_GOT16_LO          R_PPC_GOT16_LO
 152 #define R_PPC64_GOT16_HI          R_PPC_GOT16_HI
 153 #define R_PPC64_GOT16_HA          R_PPC_GOT16_HA
 154 #define R_PPC64_COPY              R_PPC_COPY
 155 #define R_PPC64_GLOB_DAT          R_PPC_GLOB_DAT
 156 #define R_PPC64_JMP_SLOT          R_PPC_JMP_SLOT
 157 #define R_PPC64_RELATIVE          R_PPC_RELATIVE
 158 #define R_PPC64_UADDR32           R_PPC_UADDR32
 159 #define R_PPC64_UADDR16           R_PPC_UADDR16
 160 #define R_PPC64_REL32             R_PPC_REL32
 161 #define R_PPC64_PLT32             R_PPC_PLT32
 162 #define R_PPC64_PLTREL32          R_PPC_PLTREL32
 163 #define R_PPC64_PLT16_LO          R_PPC_PLT16_LO
 164 #define R_PPC64_PLT16_HI          R_PPC_PLT16_HI
 165 #define R_PPC64_PLT16_HA          R_PPC_PLT16_HA
 166 #define R_PPC64_SECTOFF           R_PPC_SECTOFF
 167 #define R_PPC64_SECTOFF_LO        R_PPC_SECTOFF_LO
 168 #define R_PPC64_SECTOFF_HI        R_PPC_SECTOFF_HI
 169 #define R_PPC64_SECTOFF_HA        R_PPC_SECTOFF_HA
 170 #define R_PPC64_ADDR30            R_PPC_ADDR30
 171 #define R_PPC64_GNU_VTINHERIT     R_PPC_GNU_VTINHERIT
 172 #define R_PPC64_GNU_VTENTRY       R_PPC_GNU_VTENTRY
 173
 174 /* Specify the start of the .glink section.  */
 175 #define DT_PPC64_GLINK          DT_LOPROC
 176
 177 /* Specify the start and size of the .opd section.  */
 178 #define DT_PPC64_OPD            (DT_LOPROC + 1)
 179 #define DT_PPC64_OPDSZ          (DT_LOPROC + 2)
 180
 181 /* Processor specific flags for the ELF header e_flags field.  */
 182
 183 #define EF_PPC_EMB              0x80000000      /* PowerPC embedded flag.  */
 184
 185 #define EF_PPC_RELOCATABLE      0x00010000      /* PowerPC -mrelocatable flag.  */
 186 #define EF_PPC_RELOCATABLE_LIB  0x00008000      /* PowerPC -mrelocatable-lib flag.  */
 187
 188 /* Processor specific section headers, sh_type field.  */
 189
 190 #define SHT_ORDERED             SHT_HIPROC      /* Link editor is to sort the \
 191                                                    entries in this section \
 192                                                    based on the address \
 193                                                    specified in the associated \
 194                                                    symbol table entry.  */
 195
 196 /* Processor specific section flags, sh_flags field.  */
 197
 198 #define SHF_EXCLUDE             0x80000000      /* Link editor is to exclude \
 199                                                    this section from executable \
 200                                                    and shared objects that it \
 201                                                    builds when those objects \
 202                                                    are not to be furhter \
 203                                                    relocated.  */
 204 #endif /* _ELF_PPC_H */