1 | /* BFD back-end for Texas Instruments TMS320C80 Multimedia Video Processor (MVP).
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2 | Copyright 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
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3 |
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4 | Written by Fred Fish (fnf@cygnus.com)
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5 |
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6 | There is nothing new under the sun. This file draws a lot on other
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7 | coff files.
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8 |
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9 | This file is part of BFD, the Binary File Descriptor library.
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10 |
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11 | This program is free software; you can redistribute it and/or modify
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12 | it under the terms of the GNU General Public License as published by
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13 | the Free Software Foundation; either version 2 of the License, or
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14 | (at your option) any later version.
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15 |
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16 | This program is distributed in the hope that it will be useful,
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17 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 | GNU General Public License for more details.
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20 |
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21 | You should have received a copy of the GNU General Public License
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22 | along with this program; if not, write to the Free Software
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23 | Foundation, 59 Temple Place - Suite 330,
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24 | Boston, MA 02111-1307, USA. */
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25 |
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26 | #include "bfd.h"
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27 | #include "bfdlink.h"
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28 | #include "sysdep.h"
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29 | #include "libbfd.h"
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30 | #include "coff/tic80.h"
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31 | #include "coff/internal.h"
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32 | #include "libcoff.h"
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33 |
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34 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
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35 | #define COFF_ALIGN_IN_SECTION_HEADER 1
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36 | #define COFF_ALIGN_IN_SFLAGS 1
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37 |
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38 | #define GET_SCNHDR_FLAGS bfd_h_get_16
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39 | #define PUT_SCNHDR_FLAGS bfd_h_put_16
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40 |
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41 | static void rtype2howto
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42 | PARAMS ((arelent *cache_ptr, struct internal_reloc *dst));
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43 | static bfd_reloc_status_type ppbase_reloc
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44 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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45 | static bfd_reloc_status_type glob15_reloc
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46 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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47 | static bfd_reloc_status_type glob16_reloc
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48 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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49 | static bfd_reloc_status_type local16_reloc
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50 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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51 | static boolean coff_tic80_relocate_section
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52 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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53 | struct internal_reloc *, struct internal_syment *, asection **));
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54 |
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55 | static reloc_howto_type tic80_howto_table[] =
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56 | {
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57 |
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58 | HOWTO (R_RELLONG, /* type */
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59 | 0, /* rightshift */
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60 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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61 | 32, /* bitsize */
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62 | false, /* pc_relative */
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63 | 0, /* bitpos */
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64 | complain_overflow_bitfield, /* complain_on_overflow */
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65 | NULL, /* special_function */
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66 | "RELLONG", /* name */
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67 | true, /* partial_inplace */
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68 | 0xffffffff, /* src_mask */
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69 | 0xffffffff, /* dst_mask */
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70 | false), /* pcrel_offset */
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71 |
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72 | HOWTO (R_MPPCR, /* type */
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73 | 2, /* rightshift */
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74 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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75 | 32, /* bitsize */
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76 | true, /* pc_relative */
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77 | 0, /* bitpos */
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78 | complain_overflow_signed, /* complain_on_overflow */
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79 | NULL, /* special_function */
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80 | "MPPCR", /* name */
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81 | true, /* partial_inplace */
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82 | 0xffffffff, /* src_mask */
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83 | 0xffffffff, /* dst_mask */
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84 | true), /* pcrel_offset */
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85 |
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86 | HOWTO (R_ABS, /* type */
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87 | 0, /* rightshift */
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88 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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89 | 32, /* bitsize */
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90 | false, /* pc_relative */
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91 | 0, /* bitpos */
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92 | complain_overflow_bitfield, /* complain_on_overflow */
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93 | NULL, /* special_function */
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94 | "ABS", /* name */
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95 | true, /* partial_inplace */
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96 | 0xffffffff, /* src_mask */
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97 | 0xffffffff, /* dst_mask */
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98 | false), /* pcrel_offset */
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99 |
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100 | HOWTO (R_PPBASE, /* type */
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101 | 0, /* rightshift */
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102 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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103 | 32, /* bitsize */
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104 | false, /* pc_relative */
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105 | 0, /* bitpos */
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106 | complain_overflow_dont, /* complain_on_overflow */
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107 | ppbase_reloc, /* special_function */
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108 | "PPBASE", /* name */
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109 | true, /* partial_inplace */
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110 | 0xffffffff, /* src_mask */
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111 | 0xffffffff, /* dst_mask */
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112 | false), /* pcrel_offset */
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113 |
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114 | HOWTO (R_PPLBASE, /* type */
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115 | 0, /* rightshift */
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116 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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117 | 32, /* bitsize */
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118 | false, /* pc_relative */
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119 | 0, /* bitpos */
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120 | complain_overflow_dont, /* complain_on_overflow */
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121 | ppbase_reloc, /* special_function */
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122 | "PPLBASE", /* name */
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123 | true, /* partial_inplace */
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124 | 0xffffffff, /* src_mask */
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125 | 0xffffffff, /* dst_mask */
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126 | false), /* pcrel_offset */
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127 |
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128 | HOWTO (R_PP15, /* type */
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129 | 0, /* rightshift */
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130 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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131 | 15, /* bitsize */
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132 | false, /* pc_relative */
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133 | 6, /* bitpos */
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134 | complain_overflow_dont, /* complain_on_overflow */
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135 | glob15_reloc, /* special_function */
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136 | "PP15", /* name */
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137 | true, /* partial_inplace */
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138 | 0x1ffc0, /* src_mask */
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139 | 0x1ffc0, /* dst_mask */
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140 | false), /* pcrel_offset */
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141 |
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142 | HOWTO (R_PP15W, /* type */
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143 | 2, /* rightshift */
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144 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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145 | 15, /* bitsize */
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146 | false, /* pc_relative */
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147 | 6, /* bitpos */
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148 | complain_overflow_dont, /* complain_on_overflow */
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149 | glob15_reloc, /* special_function */
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150 | "PP15W", /* name */
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151 | true, /* partial_inplace */
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152 | 0x1ffc0, /* src_mask */
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153 | 0x1ffc0, /* dst_mask */
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154 | false), /* pcrel_offset */
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155 |
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156 | HOWTO (R_PP15H, /* type */
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157 | 1, /* rightshift */
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158 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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159 | 15, /* bitsize */
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160 | false, /* pc_relative */
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161 | 6, /* bitpos */
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162 | complain_overflow_dont, /* complain_on_overflow */
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163 | glob15_reloc, /* special_function */
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164 | "PP15H", /* name */
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165 | true, /* partial_inplace */
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166 | 0x1ffc0, /* src_mask */
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167 | 0x1ffc0, /* dst_mask */
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168 | false), /* pcrel_offset */
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169 |
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170 | HOWTO (R_PP16B, /* type */
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171 | 0, /* rightshift */
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172 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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173 | 16, /* bitsize */
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174 | false, /* pc_relative */
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175 | 6, /* bitpos */
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176 | complain_overflow_dont, /* complain_on_overflow */
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177 | glob16_reloc, /* special_function */
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178 | "PP16B", /* name */
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179 | true, /* partial_inplace */
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180 | 0x3ffc0, /* src_mask */
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181 | 0x3ffc0, /* dst_mask */
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182 | false), /* pcrel_offset */
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183 |
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184 | HOWTO (R_PPL15, /* type */
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185 | 0, /* rightshift */
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186 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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187 | 15, /* bitsize */
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188 | false, /* pc_relative */
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189 | 0, /* bitpos */
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190 | complain_overflow_dont, /* complain_on_overflow */
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191 | NULL, /* special_function */
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192 | "PPL15", /* name */
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193 | true, /* partial_inplace */
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194 | 0x7fff, /* src_mask */
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195 | 0x7fff, /* dst_mask */
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196 | false), /* pcrel_offset */
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197 |
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198 | HOWTO (R_PPL15W, /* type */
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199 | 2, /* rightshift */
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200 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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201 | 15, /* bitsize */
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202 | false, /* pc_relative */
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203 | 0, /* bitpos */
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204 | complain_overflow_dont, /* complain_on_overflow */
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205 | NULL, /* special_function */
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206 | "PPL15W", /* name */
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207 | true, /* partial_inplace */
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208 | 0x7fff, /* src_mask */
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209 | 0x7fff, /* dst_mask */
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210 | false), /* pcrel_offset */
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211 |
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212 | HOWTO (R_PPL15H, /* type */
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213 | 1, /* rightshift */
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214 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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215 | 15, /* bitsize */
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216 | false, /* pc_relative */
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217 | 0, /* bitpos */
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218 | complain_overflow_dont, /* complain_on_overflow */
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219 | NULL, /* special_function */
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220 | "PPL15H", /* name */
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221 | true, /* partial_inplace */
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222 | 0x7fff, /* src_mask */
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223 | 0x7fff, /* dst_mask */
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224 | false), /* pcrel_offset */
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225 |
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226 | HOWTO (R_PPL16B, /* type */
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227 | 0, /* rightshift */
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228 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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229 | 16, /* bitsize */
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230 | false, /* pc_relative */
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231 | 0, /* bitpos */
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232 | complain_overflow_dont, /* complain_on_overflow */
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233 | local16_reloc, /* special_function */
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234 | "PPL16B", /* name */
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235 | true, /* partial_inplace */
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236 | 0xffff, /* src_mask */
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237 | 0xffff, /* dst_mask */
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238 | false), /* pcrel_offset */
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239 |
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240 | HOWTO (R_PPN15, /* type */
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241 | 0, /* rightshift */
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242 | -2, /* size (0 = byte, 1 = short, 2 = long) */
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243 | 15, /* bitsize */
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244 | false, /* pc_relative */
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245 | 6, /* bitpos */
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246 | complain_overflow_dont, /* complain_on_overflow */
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247 | glob15_reloc, /* special_function */
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248 | "PPN15", /* name */
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249 | true, /* partial_inplace */
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250 | 0x1ffc0, /* src_mask */
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251 | 0x1ffc0, /* dst_mask */
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252 | false), /* pcrel_offset */
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253 |
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254 | HOWTO (R_PPN15W, /* type */
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255 | 2, /* rightshift */
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256 | -2, /* size (0 = byte, 1 = short, 2 = long) */
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257 | 15, /* bitsize */
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258 | false, /* pc_relative */
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259 | 6, /* bitpos */
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260 | complain_overflow_dont, /* complain_on_overflow */
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261 | glob15_reloc, /* special_function */
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262 | "PPN15W", /* name */
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263 | true, /* partial_inplace */
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264 | 0x1ffc0, /* src_mask */
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265 | 0x1ffc0, /* dst_mask */
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266 | false), /* pcrel_offset */
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267 |
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268 | HOWTO (R_PPN15H, /* type */
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269 | 1, /* rightshift */
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270 | -2, /* size (0 = byte, 1 = short, 2 = long) */
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271 | 15, /* bitsize */
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272 | false, /* pc_relative */
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273 | 6, /* bitpos */
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274 | complain_overflow_dont, /* complain_on_overflow */
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275 | glob15_reloc, /* special_function */
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276 | "PPN15H", /* name */
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277 | true, /* partial_inplace */
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278 | 0x1ffc0, /* src_mask */
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279 | 0x1ffc0, /* dst_mask */
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280 | false), /* pcrel_offset */
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281 |
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282 | HOWTO (R_PPN16B, /* type */
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283 | 0, /* rightshift */
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284 | -2, /* size (0 = byte, 1 = short, 2 = long) */
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285 | 16, /* bitsize */
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286 | false, /* pc_relative */
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287 | 6, /* bitpos */
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288 | complain_overflow_dont, /* complain_on_overflow */
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289 | glob16_reloc, /* special_function */
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290 | "PPN16B", /* name */
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291 | true, /* partial_inplace */
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292 | 0x3ffc0, /* src_mask */
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293 | 0x3ffc0, /* dst_mask */
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294 | false), /* pcrel_offset */
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295 |
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296 | HOWTO (R_PPLN15, /* type */
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297 | 0, /* rightshift */
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298 | -2, /* size (0 = byte, 1 = short, 2 = long) */
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299 | 15, /* bitsize */
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300 | false, /* pc_relative */
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301 | 0, /* bitpos */
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302 | complain_overflow_dont, /* complain_on_overflow */
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303 | NULL, /* special_function */
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304 | "PPLN15", /* name */
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305 | true, /* partial_inplace */
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306 | 0x7fff, /* src_mask */
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307 | 0x7fff, /* dst_mask */
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308 | false), /* pcrel_offset */
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309 |
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310 | HOWTO (R_PPLN15W, /* type */
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311 | 2, /* rightshift */
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312 | -2, /* size (0 = byte, 1 = short, 2 = long) */
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313 | 15, /* bitsize */
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314 | false, /* pc_relative */
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315 | 0, /* bitpos */
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316 | complain_overflow_dont, /* complain_on_overflow */
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317 | NULL, /* special_function */
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318 | "PPLN15W", /* name */
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319 | true, /* partial_inplace */
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320 | 0x7fff, /* src_mask */
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321 | 0x7fff, /* dst_mask */
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322 | false), /* pcrel_offset */
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323 |
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324 | HOWTO (R_PPLN15H, /* type */
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325 | 1, /* rightshift */
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326 | -2, /* size (0 = byte, 1 = short, 2 = long) */
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327 | 15, /* bitsize */
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328 | false, /* pc_relative */
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329 | 0, /* bitpos */
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330 | complain_overflow_dont, /* complain_on_overflow */
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331 | NULL, /* special_function */
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332 | "PPLN15H", /* name */
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333 | true, /* partial_inplace */
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334 | 0x7fff, /* src_mask */
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335 | 0x7fff, /* dst_mask */
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336 | false), /* pcrel_offset */
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337 |
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338 | HOWTO (R_PPLN16B, /* type */
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339 | 0, /* rightshift */
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340 | -2, /* size (0 = byte, 1 = short, 2 = long) */
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341 | 15, /* bitsize */
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342 | false, /* pc_relative */
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343 | 0, /* bitpos */
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344 | complain_overflow_dont, /* complain_on_overflow */
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345 | local16_reloc, /* special_function */
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346 | "PPLN16B", /* name */
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347 | true, /* partial_inplace */
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348 | 0xffff, /* src_mask */
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349 | 0xffff, /* dst_mask */
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350 | false) /* pcrel_offset */
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351 | };
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352 | |
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353 |
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354 | /* Special relocation functions, used when the output file is not
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355 | itself a COFF TIc80 file. */
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356 |
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357 | /* This special function is used for the base address type
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358 | relocations. */
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359 |
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360 | static bfd_reloc_status_type
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361 | ppbase_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
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362 | error_message)
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363 | bfd *abfd ATTRIBUTE_UNUSED;
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364 | arelent *reloc_entry ATTRIBUTE_UNUSED;
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365 | asymbol *symbol_in ATTRIBUTE_UNUSED;
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366 | PTR data ATTRIBUTE_UNUSED;
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367 | asection *input_section ATTRIBUTE_UNUSED;
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368 | bfd *output_bfd ATTRIBUTE_UNUSED;
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369 | char **error_message ATTRIBUTE_UNUSED;
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370 | {
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371 | /* FIXME. */
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372 | abort ();
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373 | }
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374 |
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375 | /* This special function is used for the global 15 bit relocations. */
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376 |
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377 | static bfd_reloc_status_type
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378 | glob15_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
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379 | error_message)
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380 | bfd *abfd ATTRIBUTE_UNUSED;
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381 | arelent *reloc_entry ATTRIBUTE_UNUSED;
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382 | asymbol *symbol_in ATTRIBUTE_UNUSED;
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383 | PTR data ATTRIBUTE_UNUSED;
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384 | asection *input_section ATTRIBUTE_UNUSED;
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385 | bfd *output_bfd ATTRIBUTE_UNUSED;
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386 | char **error_message ATTRIBUTE_UNUSED;
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387 | {
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388 | /* FIXME. */
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389 | abort ();
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390 | }
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391 |
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392 | /* This special function is used for the global 16 bit relocations. */
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393 |
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394 | static bfd_reloc_status_type
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395 | glob16_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
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396 | error_message)
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397 | bfd *abfd ATTRIBUTE_UNUSED;
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398 | arelent *reloc_entry ATTRIBUTE_UNUSED;
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399 | asymbol *symbol_in ATTRIBUTE_UNUSED;
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400 | PTR data ATTRIBUTE_UNUSED;
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401 | asection *input_section ATTRIBUTE_UNUSED;
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402 | bfd *output_bfd ATTRIBUTE_UNUSED;
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403 | char **error_message ATTRIBUTE_UNUSED;
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404 | {
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405 | /* FIXME. */
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406 | abort ();
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407 | }
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408 |
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409 | /* This special function is used for the local 16 bit relocations. */
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410 |
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411 | static bfd_reloc_status_type
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412 | local16_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
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413 | error_message)
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414 | bfd *abfd ATTRIBUTE_UNUSED;
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415 | arelent *reloc_entry ATTRIBUTE_UNUSED;
|
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416 | asymbol *symbol_in ATTRIBUTE_UNUSED;
|
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417 | PTR data ATTRIBUTE_UNUSED;
|
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418 | asection *input_section ATTRIBUTE_UNUSED;
|
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419 | bfd *output_bfd ATTRIBUTE_UNUSED;
|
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420 | char **error_message ATTRIBUTE_UNUSED;
|
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421 | {
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422 | /* FIXME. */
|
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423 | abort ();
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424 | }
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425 | |
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426 |
|
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427 | /* Code to turn an external r_type into a pointer to an entry in the howto_table.
|
---|
428 | If passed an r_type we don't recognize the abort rather than silently failing
|
---|
429 | to generate an output file. */
|
---|
430 |
|
---|
431 | static void
|
---|
432 | rtype2howto (cache_ptr, dst)
|
---|
433 | arelent *cache_ptr;
|
---|
434 | struct internal_reloc *dst;
|
---|
435 | {
|
---|
436 | unsigned int i;
|
---|
437 |
|
---|
438 | for (i = 0; i < sizeof tic80_howto_table / sizeof tic80_howto_table[0]; i++)
|
---|
439 | {
|
---|
440 | if (tic80_howto_table[i].type == dst->r_type)
|
---|
441 | {
|
---|
442 | cache_ptr->howto = tic80_howto_table + i;
|
---|
443 | return;
|
---|
444 | }
|
---|
445 | }
|
---|
446 |
|
---|
447 | (*_bfd_error_handler) (_("Unrecognized reloc type 0x%x"),
|
---|
448 | (unsigned int) dst->r_type);
|
---|
449 | cache_ptr->howto = tic80_howto_table + 0;
|
---|
450 | }
|
---|
451 |
|
---|
452 | #define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst)
|
---|
453 | #define coff_rtype_to_howto coff_tic80_rtype_to_howto
|
---|
454 |
|
---|
455 | static reloc_howto_type *
|
---|
456 | coff_tic80_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
|
---|
457 | bfd *abfd ATTRIBUTE_UNUSED;
|
---|
458 | asection *sec;
|
---|
459 | struct internal_reloc *rel;
|
---|
460 | struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
|
---|
461 | struct internal_syment *sym ATTRIBUTE_UNUSED;
|
---|
462 | bfd_vma *addendp;
|
---|
463 | {
|
---|
464 | arelent genrel;
|
---|
465 |
|
---|
466 | if (rel -> r_symndx == -1 && addendp != NULL)
|
---|
467 | {
|
---|
468 | /* This is a TI "internal relocation", which means that the relocation
|
---|
469 | amount is the amount by which the current section is being relocated
|
---|
470 | in the output section. */
|
---|
471 | *addendp = (sec -> output_section -> vma + sec -> output_offset) - sec -> vma;
|
---|
472 | }
|
---|
473 | RTYPE2HOWTO (&genrel, rel);
|
---|
474 | return genrel.howto;
|
---|
475 | }
|
---|
476 |
|
---|
477 | #ifndef BADMAG
|
---|
478 | #define BADMAG(x) TIC80BADMAG(x)
|
---|
479 | #endif
|
---|
480 | |
---|
481 |
|
---|
482 | #define coff_relocate_section coff_tic80_relocate_section
|
---|
483 |
|
---|
484 | /* We need a special relocation routine to handle the PP relocs. Most
|
---|
485 | of this is a copy of _bfd_coff_generic_relocate_section. */
|
---|
486 |
|
---|
487 | static boolean
|
---|
488 | coff_tic80_relocate_section (output_bfd, info, input_bfd,
|
---|
489 | input_section, contents, relocs, syms,
|
---|
490 | sections)
|
---|
491 | bfd *output_bfd;
|
---|
492 | struct bfd_link_info *info;
|
---|
493 | bfd *input_bfd;
|
---|
494 | asection *input_section;
|
---|
495 | bfd_byte *contents;
|
---|
496 | struct internal_reloc *relocs;
|
---|
497 | struct internal_syment *syms;
|
---|
498 | asection **sections;
|
---|
499 | {
|
---|
500 | struct internal_reloc *rel;
|
---|
501 | struct internal_reloc *relend;
|
---|
502 |
|
---|
503 | rel = relocs;
|
---|
504 | relend = rel + input_section->reloc_count;
|
---|
505 | for (; rel < relend; rel++)
|
---|
506 | {
|
---|
507 | long symndx;
|
---|
508 | struct coff_link_hash_entry *h;
|
---|
509 | struct internal_syment *sym;
|
---|
510 | bfd_vma addend;
|
---|
511 | bfd_vma val;
|
---|
512 | reloc_howto_type *howto;
|
---|
513 | bfd_reloc_status_type rstat;
|
---|
514 | bfd_vma addr;
|
---|
515 |
|
---|
516 | symndx = rel->r_symndx;
|
---|
517 |
|
---|
518 | if (symndx == -1)
|
---|
519 | {
|
---|
520 | h = NULL;
|
---|
521 | sym = NULL;
|
---|
522 | }
|
---|
523 | else
|
---|
524 | {
|
---|
525 | h = obj_coff_sym_hashes (input_bfd)[symndx];
|
---|
526 | sym = syms + symndx;
|
---|
527 | }
|
---|
528 |
|
---|
529 | /* COFF treats common symbols in one of two ways. Either the
|
---|
530 | size of the symbol is included in the section contents, or it
|
---|
531 | is not. We assume that the size is not included, and force
|
---|
532 | the rtype_to_howto function to adjust the addend as needed. */
|
---|
533 |
|
---|
534 | if (sym != NULL && sym->n_scnum != 0)
|
---|
535 | addend = - sym->n_value;
|
---|
536 | else
|
---|
537 | addend = 0;
|
---|
538 |
|
---|
539 | howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
|
---|
540 | sym, &addend);
|
---|
541 | if (howto == NULL)
|
---|
542 | return false;
|
---|
543 |
|
---|
544 | val = 0;
|
---|
545 |
|
---|
546 | if (h == NULL)
|
---|
547 | {
|
---|
548 | asection *sec;
|
---|
549 |
|
---|
550 | if (symndx == -1)
|
---|
551 | {
|
---|
552 | sec = bfd_abs_section_ptr;
|
---|
553 | val = 0;
|
---|
554 | }
|
---|
555 | else
|
---|
556 | {
|
---|
557 | sec = sections[symndx];
|
---|
558 | val = (sec->output_section->vma
|
---|
559 | + sec->output_offset
|
---|
560 | + sym->n_value);
|
---|
561 | if (! obj_pe (output_bfd))
|
---|
562 | val -= sec->vma;
|
---|
563 | }
|
---|
564 | }
|
---|
565 | else
|
---|
566 | {
|
---|
567 | if (h->root.type == bfd_link_hash_defined
|
---|
568 | || h->root.type == bfd_link_hash_defweak)
|
---|
569 | {
|
---|
570 | asection *sec;
|
---|
571 |
|
---|
572 | sec = h->root.u.def.section;
|
---|
573 | val = (h->root.u.def.value
|
---|
574 | + sec->output_section->vma
|
---|
575 | + sec->output_offset);
|
---|
576 | }
|
---|
577 |
|
---|
578 | else if (! info->relocateable)
|
---|
579 | {
|
---|
580 | if (! ((*info->callbacks->undefined_symbol)
|
---|
581 | (info, h->root.root.string, input_bfd, input_section,
|
---|
582 | rel->r_vaddr - input_section->vma, true)))
|
---|
583 | return false;
|
---|
584 | }
|
---|
585 | }
|
---|
586 |
|
---|
587 | addr = rel->r_vaddr - input_section->vma;
|
---|
588 |
|
---|
589 | /* FIXME: This code assumes little endian, but the PP can
|
---|
590 | apparently be bi-endian. I don't know if the bi-endianness
|
---|
591 | applies to the instruction set or just to the data. */
|
---|
592 | switch (howto->type)
|
---|
593 | {
|
---|
594 | default:
|
---|
595 | case R_ABS:
|
---|
596 | case R_RELLONGX:
|
---|
597 | case R_PPL15:
|
---|
598 | case R_PPL15W:
|
---|
599 | case R_PPL15H:
|
---|
600 | case R_PPLN15:
|
---|
601 | case R_PPLN15W:
|
---|
602 | case R_PPLN15H:
|
---|
603 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
---|
604 | contents, addr, val, addend);
|
---|
605 | break;
|
---|
606 |
|
---|
607 | case R_PP15:
|
---|
608 | case R_PP15W:
|
---|
609 | case R_PP15H:
|
---|
610 | case R_PPN15:
|
---|
611 | case R_PPN15W:
|
---|
612 | case R_PPN15H:
|
---|
613 | /* Offset the address so that we can use 4 byte relocations. */
|
---|
614 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
---|
615 | contents + 2, addr, val, addend);
|
---|
616 | break;
|
---|
617 |
|
---|
618 | case R_PP16B:
|
---|
619 | case R_PPN16B:
|
---|
620 | {
|
---|
621 | /* The most significant bit is stored in bit 6. */
|
---|
622 | bfd_byte hold;
|
---|
623 |
|
---|
624 | hold = contents[addr + 4];
|
---|
625 | contents[addr + 4] &=~ 0x20;
|
---|
626 | contents[addr + 4] |= (contents[addr] >> 1) & 0x20;
|
---|
627 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
---|
628 | contents + 2, addr,
|
---|
629 | val, addend);
|
---|
630 | contents[addr] &=~ 0x40;
|
---|
631 | contents[addr] |= (contents[addr + 4] << 1) & 0x40;
|
---|
632 | contents[addr + 4] &=~ 0x20;
|
---|
633 | contents[addr + 4] |= hold & 0x20;
|
---|
634 | break;
|
---|
635 | }
|
---|
636 |
|
---|
637 | case R_PPL16B:
|
---|
638 | case R_PPLN16B:
|
---|
639 | {
|
---|
640 | /* The most significant bit is stored in bit 28. */
|
---|
641 | bfd_byte hold;
|
---|
642 |
|
---|
643 | hold = contents[addr + 1];
|
---|
644 | contents[addr + 1] &=~ 0x80;
|
---|
645 | contents[addr + 1] |= (contents[addr + 3] << 3) & 0x80;
|
---|
646 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
---|
647 | contents, addr,
|
---|
648 | val, addend);
|
---|
649 | contents[addr + 3] &= ~0x10;
|
---|
650 | contents[addr + 3] |= (contents[addr + 1] >> 3) & 0x10;
|
---|
651 | contents[addr + 1] &=~ 0x80;
|
---|
652 | contents[addr + 1] |= hold & 0x80;
|
---|
653 | break;
|
---|
654 | }
|
---|
655 |
|
---|
656 | case R_PPBASE:
|
---|
657 | /* Parameter RAM is from 0x1000000 to 0x1000800. */
|
---|
658 | contents[addr] &=~ 0x3;
|
---|
659 | if (val >= 0x1000000 && val < 0x1000800)
|
---|
660 | contents[addr] |= 0x3;
|
---|
661 | else
|
---|
662 | contents[addr] |= 0x2;
|
---|
663 | rstat = bfd_reloc_ok;
|
---|
664 | break;
|
---|
665 |
|
---|
666 | case R_PPLBASE:
|
---|
667 | /* Parameter RAM is from 0x1000000 to 0x1000800. */
|
---|
668 | contents[addr + 2] &= ~0xc0;
|
---|
669 | if (val >= 0x1000000 && val < 0x1000800)
|
---|
670 | contents[addr + 2] |= 0xc0;
|
---|
671 | else
|
---|
672 | contents[addr + 2] |= 0x80;
|
---|
673 | rstat = bfd_reloc_ok;
|
---|
674 | break;
|
---|
675 | }
|
---|
676 |
|
---|
677 | switch (rstat)
|
---|
678 | {
|
---|
679 | default:
|
---|
680 | abort ();
|
---|
681 | case bfd_reloc_ok:
|
---|
682 | break;
|
---|
683 | case bfd_reloc_outofrange:
|
---|
684 | (*_bfd_error_handler)
|
---|
685 | (_("%s: bad reloc address 0x%lx in section `%s'"),
|
---|
686 | bfd_get_filename (input_bfd),
|
---|
687 | (unsigned long) rel->r_vaddr,
|
---|
688 | bfd_get_section_name (input_bfd, input_section));
|
---|
689 | return false;
|
---|
690 | case bfd_reloc_overflow:
|
---|
691 | {
|
---|
692 | const char *name;
|
---|
693 | char buf[SYMNMLEN + 1];
|
---|
694 |
|
---|
695 | if (symndx == -1)
|
---|
696 | name = "*ABS*";
|
---|
697 | else if (h != NULL)
|
---|
698 | name = h->root.root.string;
|
---|
699 | else
|
---|
700 | {
|
---|
701 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
|
---|
702 | if (name == NULL)
|
---|
703 | return false;
|
---|
704 | }
|
---|
705 |
|
---|
706 | if (! ((*info->callbacks->reloc_overflow)
|
---|
707 | (info, name, howto->name, (bfd_vma) 0, input_bfd,
|
---|
708 | input_section, rel->r_vaddr - input_section->vma)))
|
---|
709 | return false;
|
---|
710 | }
|
---|
711 | }
|
---|
712 | }
|
---|
713 | return true;
|
---|
714 | }
|
---|
715 | |
---|
716 |
|
---|
717 | #define TIC80COFF 1 /* Customize coffcode.h */
|
---|
718 | #undef C_AUTOARG /* Clashes with TIc80's C_UEXT */
|
---|
719 | #undef C_LASTENT /* Clashes with TIc80's C_STATLAB */
|
---|
720 | #include "coffcode.h"
|
---|
721 |
|
---|
722 | CREATE_LITTLE_COFF_TARGET_VEC (tic80coff_vec, "coff-tic80", D_PAGED, 0, '_', NULL)
|
---|