include/elf/cr16c.h

   1 /* CR16C ELF support for BFD.
   2    Copyright 2004 Free Software Foundation, Inc.
   3
   4    This file is part of BFD, the Binary File Descriptor library.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software Foundation,
  18    Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  19
  20 #ifndef _ELF_CR16C_H
  21 #define _ELF_CR16C_H
  22
  23 #include "bfd.h"
  24 #include "elf/reloc-macros.h"
  25
  26 /* Creating indices for reloc_map_index array.  */
  27 START_RELOC_NUMBERS (elf_cr16c_reloc_type)
  28      RELOC_NUMBER (RINDEX_16C_NUM08,            0)
  29      RELOC_NUMBER (RINDEX_16C_NUM08_C,          1)
  30      RELOC_NUMBER (RINDEX_16C_NUM16,            2)
  31      RELOC_NUMBER (RINDEX_16C_NUM16_C,          3)
  32      RELOC_NUMBER (RINDEX_16C_NUM32,            4)
  33      RELOC_NUMBER (RINDEX_16C_NUM32_C,          5)
  34      RELOC_NUMBER (RINDEX_16C_DISP04,           6)
  35      RELOC_NUMBER (RINDEX_16C_DISP04_C,         7)
  36      RELOC_NUMBER (RINDEX_16C_DISP08,           8)
  37      RELOC_NUMBER (RINDEX_16C_DISP08_C,         9)
  38      RELOC_NUMBER (RINDEX_16C_DISP16,           10)
  39      RELOC_NUMBER (RINDEX_16C_DISP16_C,         11)
  40      RELOC_NUMBER (RINDEX_16C_DISP24,           12)
  41      RELOC_NUMBER (RINDEX_16C_DISP24_C,         13)
  42      RELOC_NUMBER (RINDEX_16C_DISP24a,          14)
  43      RELOC_NUMBER (RINDEX_16C_DISP24a_C,        15)
  44      RELOC_NUMBER (RINDEX_16C_REG04,            16)
  45      RELOC_NUMBER (RINDEX_16C_REG04_C,          17)
  46      RELOC_NUMBER (RINDEX_16C_REG04a,           18)
  47      RELOC_NUMBER (RINDEX_16C_REG04a_C,         19)
  48      RELOC_NUMBER (RINDEX_16C_REG14,            20)
  49      RELOC_NUMBER (RINDEX_16C_REG14_C,          21)
  50      RELOC_NUMBER (RINDEX_16C_REG16,            22)
  51      RELOC_NUMBER (RINDEX_16C_REG16_C,          23)
  52      RELOC_NUMBER (RINDEX_16C_REG20,            24)
  53      RELOC_NUMBER (RINDEX_16C_REG20_C,          25)
  54      RELOC_NUMBER (RINDEX_16C_ABS20,            26)
  55      RELOC_NUMBER (RINDEX_16C_ABS20_C,          27)
  56      RELOC_NUMBER (RINDEX_16C_ABS24,            28)
  57      RELOC_NUMBER (RINDEX_16C_ABS24_C,          29)
  58      RELOC_NUMBER (RINDEX_16C_IMM04,            30)
  59      RELOC_NUMBER (RINDEX_16C_IMM04_C,          31)
  60      RELOC_NUMBER (RINDEX_16C_IMM16,            32)
  61      RELOC_NUMBER (RINDEX_16C_IMM16_C,          33)
  62      RELOC_NUMBER (RINDEX_16C_IMM20,            34)
  63      RELOC_NUMBER (RINDEX_16C_IMM20_C,          35)
  64      RELOC_NUMBER (RINDEX_16C_IMM24,            36)
  65      RELOC_NUMBER (RINDEX_16C_IMM24_C,          37)
  66      RELOC_NUMBER (RINDEX_16C_IMM32,            38)
  67      RELOC_NUMBER (RINDEX_16C_IMM32_C,          39)
  68 END_RELOC_NUMBERS (RINDEX_16C_MAX)
  69
  70 /* CR16C Relocation Types ('cr_reloc_type' entry in the reloc_map structure).
  71    The relocation constant name is determined as follows :
  72
  73    R_16C_<format><size>[_C]
  74
  75    Where :
  76
  77      <format> is one of the following:
  78         NUM  - R_NUMBER mnemonic,
  79         DISP - R_16C_DISPL mnemonic,
  80         REG  - R_16C_REGREL mnemonic,
  81         ABS  - R_16C_ABS mnemonic,
  82         IMM  - R_16C_IMMED mnemonic,
  83      <size> stands for R_S_16C_<size>
  84      _C means 'code label' and is only added when R_ADDRTYPE subfield
  85      is of type R_CODE_ADDR.  */
  86
  87 /* The table below shows what the hex digits in the definition of the
  88    relocation type constants correspond to.
  89    ------------------------------------------------------------------
  90         R_SIZESP        R_FORMAT        R_RELTO       R_ADDRTYPE
  91    ------------------------------------------------------------------  */
  92 /*      R_S_16C_08      R_NUMBER        R_ABS         R_ADDRESS */
  93 #define R_16C_NUM08     0X0001
  94
  95 /*      R_S_16C_08      R_NUMBER        R_ABS         R_CODE_ADDR */
  96 #define R_16C_NUM08_C   0X0006
  97
  98 /*      R_S_16C_16      R_NUMBER        R_ABS         R_ADDRESS */
  99 #define R_16C_NUM16     0X1001
 100
 101 /*      R_S_16C_16      R_NUMBER        R_ABS         R_CODE_ADDR */
 102 #define R_16C_NUM16_C   0X1006
 103
 104 /*      R_S_16C_32      R_NUMBER        R_ABS         R_ADDRESS */
 105 #define R_16C_NUM32     0X2001
 106
 107 /*      R_S_16C_32      R_NUMBER        R_ABS         R_CODE_ADDR */
 108 #define R_16C_NUM32_C   0X2006
 109
 110 /*      R_S_16C_04      R_16C_DISPL     R_PCREL       R_ADDRESS */
 111 #define R_16C_DISP04    0X5411
 112
 113 /*      R_S_16C_04      R_16C_DISPL     R_PCREL       R_CODE_ADDR */
 114 #define R_16C_DISP04_C  0X5416
 115
 116 /*      R_S_16C_08      R_16C_DISPL     R_PCREL       R_ADDRESS */
 117 #define R_16C_DISP08    0X0411
 118
 119 /*      R_S_16C_08      R_16C_DISPL     R_PCREL       R_CODE_ADDR */
 120 #define R_16C_DISP08_C  0X0416
 121
 122 /*      R_S_16C_16      R_16C_DISPL     R_PCREL       R_ADDRESS */
 123 #define R_16C_DISP16    0X1411
 124
 125 /*      R_S_16C_16      R_16C_DISPL     R_PCREL       R_CODE_ADDR */
 126 #define R_16C_DISP16_C  0X1416
 127
 128 /*      R_S_16C_24      R_16C_DISPL     R_PCREL       R_ADDRESS */
 129 #define R_16C_DISP24    0X7411
 130
 131 /*      R_S_16C_24      R_16C_DISPL     R_PCREL       R_CODE_ADDR */
 132 #define R_16C_DISP24_C  0X7416
 133
 134 /*      R_S_16C_24a     R_16C_DISPL     R_PCREL       R_ADDRESS */
 135 #define R_16C_DISP24a   0X6411
 136
 137 /*      R_S_16C_24a     R_16C_DISPL     R_PCREL       R_CODE_ADDR */
 138 #define R_16C_DISP24a_C 0X6416
 139
 140 /*      R_S_16C_04      R_16C_REGREL    R_ABS         R_ADDRESS */
 141 #define R_16C_REG04     0X5201
 142
 143 /*      R_S_16C_04      R_16C_REGREL    R_ABS         R_CODE_ADDR */
 144 #define R_16C_REG04_C   0X5206
 145
 146 /*      R_S_16C_04_a    R_16C_REGREL    R_ABS         R_ADDRESS */
 147 #define R_16C_REG04a    0X4201
 148
 149 /*      R_S_16C_04_a    R_16C_REGREL    R_ABS         R_CODE_ADDR */
 150 #define R_16C_REG04a_C  0X4206
 151
 152 /*      R_S_16C_14      R_16C_REGREL    R_ABS         R_ADDRESS */
 153 #define R_16C_REG14     0X3201
 154
 155 /*      R_S_16C_14      R_16C_REGREL    R_ABS         R_CODE_ADDR */
 156 #define R_16C_REG14_C   0X3206
 157
 158 /*      R_S_16C_16      R_16C_REGREL    R_ABS         R_ADDRESS */
 159 #define R_16C_REG16     0X1201
 160
 161 /*      R_S_16C_16      R_16C_REGREL    R_ABS         R_CODE_ADDR */
 162 #define R_16C_REG16_C   0X1206
 163
 164 /*      R_S_16C_20      R_16C_REGREL    R_ABS         R_ADDRESS */
 165 #define R_16C_REG20     0X8201
 166
 167 /*      R_S_16C_20      R_16C_REGREL    R_ABS         R_CODE_ADDR */
 168 #define R_16C_REG20_C   0X8206
 169
 170 /*      R_S_16C_20      R_16C_ABS       R_ABS         R_ADDRESS */
 171 #define R_16C_ABS20     0X8101
 172
 173 /*      R_S_16C_20      R_16C_ABS       R_ABS         R_CODE_ADDR */
 174 #define R_16C_ABS20_C   0X8106
 175
 176 /*      R_S_16C_24      R_16C_ABS       R_ABS         R_ADDRESS */
 177 #define R_16C_ABS24     0X7101
 178
 179 /*      R_S_16C_24      R_16C_ABS       R_ABS         R_CODE_ADDR */
 180 #define R_16C_ABS24_C   0X7106
 181
 182 /*      R_S_16C_04      R_16C_IMMED     R_ABS         R_ADDRESS */
 183 #define R_16C_IMM04     0X5301
 184
 185 /*      R_S_16C_04      R_16C_IMMED     R_ABS         R_CODE_ADDR */
 186 #define R_16C_IMM04_C   0X5306
 187
 188 /*      R_S_16C_16      R_16C_IMMED     R_ABS         R_ADDRESS */
 189 #define R_16C_IMM16     0X1301
 190
 191 /*      R_S_16C_16      R_16C_IMMED     R_ABS         R_CODE_ADDR */
 192 #define R_16C_IMM16_C   0X1306
 193
 194 /*      R_S_16C_20      R_16C_IMMED     R_ABS         R_ADDRESS */
 195 #define R_16C_IMM20     0X8301
 196
 197 /*      R_S_16C_20      R_16C_IMMED     R_ABS         R_CODE_ADDR */
 198 #define R_16C_IMM20_C   0X8306
 199
 200 /*      R_S_16C_24      R_16C_IMMED     R_ABS         R_ADDRESS */
 201 #define R_16C_IMM24     0X7301
 202
 203 /*      R_S_16C_24      R_16C_IMMED     R_ABS         R_CODE_ADDR */
 204 #define R_16C_IMM24_C   0X7306
 205
 206 /*      R_S_16C_32      R_16C_IMMED     R_ABS         R_ADDRESS */
 207 #define R_16C_IMM32     0X2301
 208
 209 /*      R_S_16C_32      R_16C_IMMED     R_ABS         R_CODE_ADDR */
 210 #define R_16C_IMM32_C   0X2306
 211
 212
 213 /* Relocation item type.  */
 214 #define   R_ADDRTYPE     0x000f
 215 #define   R_ADDRESS      0x0001    /* Take address of symbol.  */
 216 #define   R_CODE_ADDR    0x0006    /* Take address of symbol divided by 2.  */
 217
 218 /* Relocation action.  */
 219 #define   R_RELTO        0x00f0
 220 #define   R_ABS          0x0000    /* Keep symbol's address as such.  */
 221 #define   R_PCREL        0x0010    /* Subtract the pc address of hole.  */
 222
 223 /* Relocation item data format.  */
 224 #define   R_FORMAT       0x0f00
 225 #define   R_NUMBER       0x0000    /* Retain as two's complement value.  */
 226 #define   R_16C_DISPL    0x0400    /* CR16C displacement type.  */
 227 #define   R_16C_ABS      0x0100    /* CR16C absolute type.  */
 228 #define   R_16C_REGREL   0x0200    /* CR16C register-relative type.  */
 229 #define   R_16C_IMMED    0x0300    /* CR16C immediate type.  */
 230
 231 /* Relocation item size. */
 232 #define   R_SIZESP       0xf000
 233 #define   R_S_16C_04     0x5000
 234 #define   R_S_16C_04_a   0x4000
 235 #define   R_S_16C_08     0x0000
 236 #define   R_S_16C_14     0x3000
 237 #define   R_S_16C_16     0x1000
 238 #define   R_S_16C_20     0x8000
 239 #define   R_S_16C_24_a   0x6000
 240 #define   R_S_16C_24     0x7000
 241 #define   R_S_16C_32     0x2000
 242
 243
 244 /* Processor specific section indices.  These sections do not actually
 245    exist.  Symbols with a st_shndx field corresponding to one of these
 246    values have a special meaning.  */
 247
 248 /* Far common symbol.  */
 249 #define SHN_CR16C_FCOMMON       0xff00
 250 #define SHN_CR16C_NCOMMON       0xff01
 251
 252 typedef struct reloc_map
 253 {
 254   unsigned short            cr_reloc_type;  /* CR relocation type.  */
 255   bfd_reloc_code_real_type  bfd_reloc_enum; /* BFD relocation enum.  */
 256 } RELOC_MAP;
 257
 258 #endif /* _ELF_CR16C_H */