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      1 /* CR16C ELF support for BFD.
      2    Copyright (C) 2004-2016 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 3 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	SHN_LORESERVE
    250 #define SHN_CR16C_NCOMMON	(SHN_LORESERVE + 1)
    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 */
    259