include/elf/ppc.h

   1 /* PPC ELF support for BFD.
   2    Copyright (C) 1995, 1998 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
  72 /* The remaining relocs are from the Embedded ELF ABI, and are not
  73    in the SVR4 ELF ABI.  */
  74   RELOC_NUMBER (R_PPC_EMB_NADDR32, 101)
  75   RELOC_NUMBER (R_PPC_EMB_NADDR16, 102)
  76   RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103)
  77   RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104)
  78   RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105)
  79   RELOC_NUMBER (R_PPC_EMB_SDAI16, 106)
  80   RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107)
  81   RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108)
  82   RELOC_NUMBER (R_PPC_EMB_SDA21, 109)
  83   RELOC_NUMBER (R_PPC_EMB_MRKREF, 110)
  84   RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111)
  85   RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112)
  86   RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113)
  87   RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114)
  88   RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115)
  89   RELOC_NUMBER (R_PPC_EMB_RELSDA, 116)
  90
  91   /* These are GNU extensions to enable C++ vtable garbage collection.  */
  92   RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253)
  93   RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254)
  94
  95 /* This is a phony reloc to handle any old fashioned TOC16 references
  96    that may still be in object files.  */
  97   RELOC_NUMBER (R_PPC_TOC16, 255)
  98
  99   EMPTY_RELOC (R_PPC_max)
 100 END_RELOC_NUMBERS
 101
 102
 103 /* Processor specific flags for the ELF header e_flags field.  */
 104
 105 #define EF_PPC_EMB              0x80000000      /* PowerPC embedded flag  */
 106
 107                                                 /* CYGNUS local bits below */
 108 #define EF_PPC_RELOCATABLE      0x00010000      /* PowerPC -mrelocatable flag */
 109 #define EF_PPC_RELOCATABLE_LIB  0x00008000      /* PowerPC -mrelocatable-lib flag */
 110
 111 /* Processor specific section headers, sh_type field */
 112
 113 #define SHT_ORDERED             SHT_HIPROC      /* Link editor is to sort the \
 114                                                    entries in this section \
 115                                                    based on the address \
 116                                                    specified in the associated \
 117                                                    symbol table entry.  */
 118
 119 /* Processor specific section flags, sh_flags field */
 120
 121 #define SHF_EXCLUDE             0x80000000      /* Link editor is to exclude \
 122                                                    this section from executable \
 123                                                    and shared objects that it \
 124                                                    builds when those objects \
 125                                                    are not to be furhter \
 126                                                    relocated.  */
 127 #endif /* _ELF_PPC_H */