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  1. /* MC68k ELF support for BFD.
  2.    Copyright 1998, 1999, 2000, 2002, 2005, 2006, 2007, 2009, 2010
  3.    Free Software Foundation, Inc.
  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 3 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 Foundation,
  19.    Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  20.  
  21. #ifndef _ELF_M68K_H
  22. #define _ELF_M68K_H
  23.  
  24. #include "elf/reloc-macros.h"
  25.  
  26. /* Relocation types.  */
  27. START_RELOC_NUMBERS (elf_m68k_reloc_type)
  28.   RELOC_NUMBER (R_68K_NONE, 0)          /* No reloc */
  29.   RELOC_NUMBER (R_68K_32, 1)            /* Direct 32 bit  */
  30.   RELOC_NUMBER (R_68K_16, 2)            /* Direct 16 bit  */
  31.   RELOC_NUMBER (R_68K_8, 3)             /* Direct 8 bit  */
  32.   RELOC_NUMBER (R_68K_PC32, 4)          /* PC relative 32 bit */
  33.   RELOC_NUMBER (R_68K_PC16, 5)          /* PC relative 16 bit */
  34.   RELOC_NUMBER (R_68K_PC8, 6)           /* PC relative 8 bit */
  35.   RELOC_NUMBER (R_68K_GOT32, 7)         /* 32 bit PC relative GOT entry */
  36.   RELOC_NUMBER (R_68K_GOT16, 8)         /* 16 bit PC relative GOT entry */
  37.   RELOC_NUMBER (R_68K_GOT8, 9)          /* 8 bit PC relative GOT entry */
  38.   RELOC_NUMBER (R_68K_GOT32O, 10)       /* 32 bit GOT offset */
  39.   RELOC_NUMBER (R_68K_GOT16O, 11)       /* 16 bit GOT offset */
  40.   RELOC_NUMBER (R_68K_GOT8O, 12)        /* 8 bit GOT offset */
  41.   RELOC_NUMBER (R_68K_PLT32, 13)        /* 32 bit PC relative PLT address */
  42.   RELOC_NUMBER (R_68K_PLT16, 14)        /* 16 bit PC relative PLT address */
  43.   RELOC_NUMBER (R_68K_PLT8, 15)         /* 8 bit PC relative PLT address */
  44.   RELOC_NUMBER (R_68K_PLT32O, 16)       /* 32 bit PLT offset */
  45.   RELOC_NUMBER (R_68K_PLT16O, 17)       /* 16 bit PLT offset */
  46.   RELOC_NUMBER (R_68K_PLT8O, 18)        /* 8 bit PLT offset */
  47.   RELOC_NUMBER (R_68K_COPY, 19)         /* Copy symbol at runtime */
  48.   RELOC_NUMBER (R_68K_GLOB_DAT, 20)     /* Create GOT entry */
  49.   RELOC_NUMBER (R_68K_JMP_SLOT, 21)     /* Create PLT entry */
  50.   RELOC_NUMBER (R_68K_RELATIVE, 22)     /* Adjust by program base */
  51.   /* These are GNU extensions to enable C++ vtable garbage collection.  */
  52.   RELOC_NUMBER (R_68K_GNU_VTINHERIT, 23)
  53.   RELOC_NUMBER (R_68K_GNU_VTENTRY, 24)
  54.   /* TLS static relocations.  */
  55.   RELOC_NUMBER (R_68K_TLS_GD32, 25)
  56.   RELOC_NUMBER (R_68K_TLS_GD16, 26)
  57.   RELOC_NUMBER (R_68K_TLS_GD8, 27)
  58.   RELOC_NUMBER (R_68K_TLS_LDM32, 28)
  59.   RELOC_NUMBER (R_68K_TLS_LDM16, 29)
  60.   RELOC_NUMBER (R_68K_TLS_LDM8, 30)
  61.   RELOC_NUMBER (R_68K_TLS_LDO32, 31)
  62.   RELOC_NUMBER (R_68K_TLS_LDO16, 32)
  63.   RELOC_NUMBER (R_68K_TLS_LDO8, 33)
  64.   RELOC_NUMBER (R_68K_TLS_IE32, 34)
  65.   RELOC_NUMBER (R_68K_TLS_IE16, 35)
  66.   RELOC_NUMBER (R_68K_TLS_IE8, 36)
  67.   RELOC_NUMBER (R_68K_TLS_LE32, 37)
  68.   RELOC_NUMBER (R_68K_TLS_LE16, 38)
  69.   RELOC_NUMBER (R_68K_TLS_LE8, 39)
  70.   RELOC_NUMBER (R_68K_TLS_DTPMOD32, 40)
  71.   RELOC_NUMBER (R_68K_TLS_DTPREL32, 41)
  72.   RELOC_NUMBER (R_68K_TLS_TPREL32, 42)
  73. END_RELOC_NUMBERS (R_68K_max)
  74.  
  75. /* We use the top 24 bits to encode information about the
  76.    architecture variant.  */
  77. #define EF_M68K_CPU32    0x00810000
  78. #define EF_M68K_M68000   0x01000000
  79. #define EF_M68K_CFV4E    0x00008000
  80. #define EF_M68K_FIDO     0x02000000
  81. #define EF_M68K_ARCH_MASK                                               \
  82.   (EF_M68K_M68000 | EF_M68K_CPU32 | EF_M68K_CFV4E | EF_M68K_FIDO)
  83.  
  84. /* We use the bottom 8 bits to encode information about the
  85.    coldfire variant.  If we use any of these bits, the top 24 bits are
  86.    either 0 or EF_M68K_CFV4E.  */
  87. #define EF_M68K_CF_ISA_MASK     0x0F  /* Which ISA */
  88. #define EF_M68K_CF_ISA_A_NODIV  0x01  /* ISA A except for div */
  89. #define EF_M68K_CF_ISA_A        0x02
  90. #define EF_M68K_CF_ISA_A_PLUS   0x03
  91. #define EF_M68K_CF_ISA_B_NOUSP  0x04  /* ISA_B except for USP */
  92. #define EF_M68K_CF_ISA_B        0x05
  93. #define EF_M68K_CF_ISA_C        0x06
  94. #define EF_M68K_CF_ISA_C_NODIV  0x07  /* ISA C except for div */
  95. #define EF_M68K_CF_MAC_MASK     0x30
  96. #define EF_M68K_CF_MAC          0x10  /* MAC */
  97. #define EF_M68K_CF_EMAC         0x20  /* EMAC */
  98. #define EF_M68K_CF_EMAC_B       0x30  /* EMAC_B */
  99. #define EF_M68K_CF_FLOAT        0x40  /* Has float insns */
  100. #define EF_M68K_CF_MASK         0xFF
  101.      
  102. #endif
  103.