1 | /* MSP430-specific support for 32-bit ELF
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2 | Copyright (C) 2002 Free Software Foundation, Inc.
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3 | Contributed by Dmitry Diky <diwil@mail.ru>
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4 |
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5 | This file is part of BFD, the Binary File Descriptor library.
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6 |
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7 | This program is free software; you can redistribute it and/or modify
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8 | it under the terms of the GNU General Public License as published by
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9 | the Free Software Foundation; either version 2 of the License, or
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10 | (at your option) any later version.
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11 |
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12 | This program is distributed in the hope that it will be useful,
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13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | GNU General Public License for more details.
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16 |
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17 | You should have received a copy of the GNU General Public License
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18 | along with this program; if not, write to the Free Software
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19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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20 |
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21 | #include "bfd.h"
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22 | #include "sysdep.h"
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23 | #include "libiberty.h"
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24 | #include "libbfd.h"
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25 | #include "elf-bfd.h"
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26 | #include "elf/msp430.h"
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27 |
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28 | static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
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29 | PARAMS ((bfd *, bfd_reloc_code_real_type));
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30 |
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31 | static void msp430_info_to_howto_rela
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32 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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33 |
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34 | static asection *elf32_msp430_gc_mark_hook
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35 | PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
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36 | struct elf_link_hash_entry *, Elf_Internal_Sym *));
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37 |
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38 | static bfd_boolean elf32_msp430_gc_sweep_hook
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39 | PARAMS ((bfd *, struct bfd_link_info *, asection *,
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40 | const Elf_Internal_Rela *));
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41 |
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42 | static bfd_boolean elf32_msp430_check_relocs
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43 | PARAMS ((bfd *, struct bfd_link_info *, asection *,
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44 | const Elf_Internal_Rela *));
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45 |
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46 | static bfd_reloc_status_type msp430_final_link_relocate
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47 | PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
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48 | Elf_Internal_Rela *, bfd_vma));
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49 |
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50 | static bfd_boolean elf32_msp430_relocate_section
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51 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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52 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
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53 |
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54 | static void bfd_elf_msp430_final_write_processing
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55 | PARAMS ((bfd *, bfd_boolean));
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56 |
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57 | static bfd_boolean elf32_msp430_object_p
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58 | PARAMS ((bfd *));
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59 |
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60 | static void elf32_msp430_post_process_headers
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61 | PARAMS ((bfd *, struct bfd_link_info *));
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62 |
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63 | /* Use RELA instead of REL. */
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64 | #undef USE_REL
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65 |
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66 | static reloc_howto_type elf_msp430_howto_table[] =
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67 | {
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68 | HOWTO (R_MSP430_NONE, /* type */
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69 | 0, /* rightshift */
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70 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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71 | 32, /* bitsize */
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72 | FALSE, /* pc_relative */
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73 | 0, /* bitpos */
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74 | complain_overflow_bitfield, /* complain_on_overflow */
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75 | bfd_elf_generic_reloc, /* special_function */
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76 | "R_MSP430_NONE", /* name */
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77 | FALSE, /* partial_inplace */
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78 | 0, /* src_mask */
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79 | 0, /* dst_mask */
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80 | FALSE), /* pcrel_offset */
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81 |
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82 | HOWTO (R_MSP430_32, /* type */
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83 | 0, /* rightshift */
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84 | 2, /* size (0 = byte, 1 = short, 2 = long) */
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85 | 32, /* bitsize */
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86 | FALSE, /* pc_relative */
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87 | 0, /* bitpos */
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88 | complain_overflow_bitfield, /* complain_on_overflow */
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89 | bfd_elf_generic_reloc, /* special_function */
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90 | "R_MSP430_32", /* name */
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91 | FALSE, /* partial_inplace */
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92 | 0xffffffff, /* src_mask */
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93 | 0xffffffff, /* dst_mask */
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94 | FALSE), /* pcrel_offset */
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95 |
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96 | /* A 13 bit PC relative relocation. */
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97 | HOWTO (R_MSP430_10_PCREL, /* type */
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98 | 1, /* rightshift */
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99 | 1, /* size (0 = byte, 1 = short, 2 = long) */
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100 | 10, /* bitsize */
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101 | TRUE, /* pc_relative */
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102 | 0, /* bitpos */
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103 | complain_overflow_bitfield, /* complain_on_overflow */
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104 | bfd_elf_generic_reloc, /* special_function */
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105 | "R_MSP430_13_PCREL", /* name */
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106 | FALSE, /* partial_inplace */
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107 | 0xfff, /* src_mask */
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108 | 0xfff, /* dst_mask */
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109 | TRUE), /* pcrel_offset */
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110 |
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111 | /* A 16 bit absolute relocation. */
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112 | HOWTO (R_MSP430_16, /* type */
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113 | 0, /* rightshift */
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114 | 1, /* size (0 = byte, 1 = short, 2 = long) */
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115 | 16, /* bitsize */
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116 | FALSE, /* pc_relative */
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117 | 0, /* bitpos */
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118 | complain_overflow_dont,/* complain_on_overflow */
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119 | bfd_elf_generic_reloc, /* special_function */
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120 | "R_MSP430_16", /* name */
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121 | FALSE, /* partial_inplace */
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122 | 0xffff, /* src_mask */
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123 | 0xffff, /* dst_mask */
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124 | FALSE), /* pcrel_offset */
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125 |
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126 | /* A 16 bit absolute relocation for command address. */
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127 | HOWTO (R_MSP430_16_PCREL, /* type */
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128 | 1, /* rightshift */
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129 | 1, /* size (0 = byte, 1 = short, 2 = long) */
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130 | 16, /* bitsize */
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131 | TRUE, /* pc_relative */
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132 | 0, /* bitpos */
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133 | complain_overflow_dont,/* complain_on_overflow */
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134 | bfd_elf_generic_reloc, /* special_function */
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135 | "R_MSP430_16_PCREL", /* name */
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136 | FALSE, /* partial_inplace */
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137 | 0xffff, /* src_mask */
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138 | 0xffff, /* dst_mask */
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139 | TRUE), /* pcrel_offset */
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140 |
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141 | /* A 16 bit absolute relocation, byte operations. */
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142 | HOWTO (R_MSP430_16_BYTE, /* type */
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143 | 0, /* rightshift */
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144 | 1, /* size (0 = byte, 1 = short, 2 = long) */
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145 | 16, /* bitsize */
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146 | FALSE, /* pc_relative */
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147 | 0, /* bitpos */
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148 | complain_overflow_dont,/* complain_on_overflow */
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149 | bfd_elf_generic_reloc, /* special_function */
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150 | "R_MSP430_16_BYTE", /* name */
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151 | FALSE, /* partial_inplace */
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152 | 0xffff, /* src_mask */
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153 | 0xffff, /* dst_mask */
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154 | FALSE), /* pcrel_offset */
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155 |
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156 | /* A 16 bit absolute relocation for command address. */
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157 | HOWTO (R_MSP430_16_PCREL_BYTE,/* type */
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158 | 1, /* rightshift */
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159 | 1, /* size (0 = byte, 1 = short, 2 = long) */
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160 | 16, /* bitsize */
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161 | TRUE, /* pc_relative */
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162 | 0, /* bitpos */
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163 | complain_overflow_dont,/* complain_on_overflow */
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164 | bfd_elf_generic_reloc, /* special_function */
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165 | "R_MSP430_16_PCREL_BYTE", /* name */
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166 | FALSE, /* partial_inplace */
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167 | 0xffff, /* src_mask */
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168 | 0xffff, /* dst_mask */
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169 | TRUE) /* pcrel_offset */
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170 | };
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171 |
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172 | /* Map BFD reloc types to MSP430 ELF reloc types. */
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173 |
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174 | struct msp430_reloc_map
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175 | {
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176 | bfd_reloc_code_real_type bfd_reloc_val;
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177 | unsigned int elf_reloc_val;
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178 | };
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179 |
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180 | static const struct msp430_reloc_map msp430_reloc_map[] =
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181 | {
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182 | {BFD_RELOC_NONE, R_MSP430_NONE},
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183 | {BFD_RELOC_32, R_MSP430_32},
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184 | {BFD_RELOC_MSP430_10_PCREL, R_MSP430_10_PCREL},
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185 | {BFD_RELOC_16, R_MSP430_16_BYTE},
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186 | {BFD_RELOC_MSP430_16_PCREL, R_MSP430_16_PCREL},
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187 | {BFD_RELOC_MSP430_16, R_MSP430_16},
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188 | {BFD_RELOC_MSP430_16_PCREL_BYTE, R_MSP430_16_PCREL_BYTE},
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189 | {BFD_RELOC_MSP430_16_BYTE, R_MSP430_16_BYTE}
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190 | };
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191 |
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192 | static reloc_howto_type *
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193 | bfd_elf32_bfd_reloc_type_lookup (abfd, code)
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194 | bfd *abfd ATTRIBUTE_UNUSED;
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195 | bfd_reloc_code_real_type code;
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196 | {
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197 | unsigned int i;
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198 |
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199 | for (i = 0; i < ARRAY_SIZE (msp430_reloc_map); i++)
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200 | if (msp430_reloc_map[i].bfd_reloc_val == code)
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201 | return &elf_msp430_howto_table[msp430_reloc_map[i].elf_reloc_val];
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202 |
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203 | return NULL;
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204 | }
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205 |
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206 | /* Set the howto pointer for an MSP430 ELF reloc. */
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207 |
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208 | static void
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209 | msp430_info_to_howto_rela (abfd, cache_ptr, dst)
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210 | bfd *abfd ATTRIBUTE_UNUSED;
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211 | arelent *cache_ptr;
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212 | Elf_Internal_Rela *dst;
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213 | {
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214 | unsigned int r_type;
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215 |
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216 | r_type = ELF32_R_TYPE (dst->r_info);
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217 | BFD_ASSERT (r_type < (unsigned int) R_MSP430_max);
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218 | cache_ptr->howto = &elf_msp430_howto_table[r_type];
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219 | }
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220 |
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221 | static asection *
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222 | elf32_msp430_gc_mark_hook (sec, info, rel, h, sym)
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223 | asection *sec;
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224 | struct bfd_link_info *info ATTRIBUTE_UNUSED;
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225 | Elf_Internal_Rela *rel;
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226 | struct elf_link_hash_entry *h;
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227 | Elf_Internal_Sym *sym;
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228 | {
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229 | if (h != NULL)
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230 | {
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231 | switch (ELF32_R_TYPE (rel->r_info))
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232 | {
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233 | default:
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234 | switch (h->root.type)
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235 | {
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236 | case bfd_link_hash_defined:
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237 | case bfd_link_hash_defweak:
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238 | return h->root.u.def.section;
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239 |
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240 | case bfd_link_hash_common:
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241 | return h->root.u.c.p->section;
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242 |
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243 | default:
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244 | break;
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245 | }
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246 | }
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247 | }
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248 | else
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249 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
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250 |
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251 | return NULL;
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252 | }
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253 |
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254 | static bfd_boolean
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255 | elf32_msp430_gc_sweep_hook (abfd, info, sec, relocs)
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256 | bfd *abfd ATTRIBUTE_UNUSED;
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257 | struct bfd_link_info *info ATTRIBUTE_UNUSED;
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258 | asection *sec ATTRIBUTE_UNUSED;
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259 | const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
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260 | {
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261 | /* We don't use got and plt entries for msp430. */
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262 | return TRUE;
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263 | }
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264 |
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265 | /* Look through the relocs for a section during the first phase.
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266 | Since we don't do .gots or .plts, we just need to consider the
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267 | virtual table relocs for gc. */
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268 |
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269 | static bfd_boolean
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270 | elf32_msp430_check_relocs (abfd, info, sec, relocs)
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271 | bfd *abfd;
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272 | struct bfd_link_info *info;
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273 | asection *sec;
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274 | const Elf_Internal_Rela *relocs;
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275 | {
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276 | Elf_Internal_Shdr *symtab_hdr;
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277 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
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278 | const Elf_Internal_Rela *rel;
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279 | const Elf_Internal_Rela *rel_end;
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280 |
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281 | if (info->relocateable)
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282 | return TRUE;
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283 |
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284 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
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285 | sym_hashes = elf_sym_hashes (abfd);
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286 | sym_hashes_end =
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287 | sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
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288 | if (!elf_bad_symtab (abfd))
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289 | sym_hashes_end -= symtab_hdr->sh_info;
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290 |
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291 | rel_end = relocs + sec->reloc_count;
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292 | for (rel = relocs; rel < rel_end; rel++)
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293 | {
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294 | struct elf_link_hash_entry *h;
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295 | unsigned long r_symndx;
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296 |
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297 | r_symndx = ELF32_R_SYM (rel->r_info);
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298 | if (r_symndx < symtab_hdr->sh_info)
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299 | h = NULL;
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300 | else
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301 | h = sym_hashes[r_symndx - symtab_hdr->sh_info];
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302 | }
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303 |
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304 | return TRUE;
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305 | }
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306 |
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307 | /* Perform a single relocation. By default we use the standard BFD
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308 | routines, but a few relocs, we have to do them ourselves. */
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309 |
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310 | static bfd_reloc_status_type
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311 | msp430_final_link_relocate (howto, input_bfd, input_section,
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312 | contents, rel, relocation)
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313 | reloc_howto_type *howto;
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314 | bfd *input_bfd;
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315 | asection *input_section;
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316 | bfd_byte *contents;
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317 | Elf_Internal_Rela *rel;
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318 | bfd_vma relocation;
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319 | {
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320 | bfd_reloc_status_type r = bfd_reloc_ok;
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321 | bfd_vma x;
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322 | bfd_signed_vma srel;
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323 |
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324 | switch (howto->type)
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325 | {
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326 | case R_MSP430_10_PCREL:
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327 | contents += rel->r_offset;
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328 | srel = (bfd_signed_vma) relocation;
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329 | srel += rel->r_addend;
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330 | srel -= rel->r_offset;
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331 | srel -= 2; /* Branch instructions add 2 to the PC... */
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332 | srel -= (input_section->output_section->vma +
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333 | input_section->output_offset);
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334 |
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335 | if (srel & 1)
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336 | return bfd_reloc_outofrange;
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337 |
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338 | /* MSP430 addresses commands as words. */
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339 | srel >>= 1;
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340 |
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341 | /* Check for an overflow. */
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342 | if (srel < -512 || srel > 511)
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343 | return bfd_reloc_overflow;
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344 |
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345 | x = bfd_get_16 (input_bfd, contents);
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346 | x = (x & 0xfc00) | (srel & 0x3ff);
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347 | bfd_put_16 (input_bfd, x, contents);
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348 | break;
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349 |
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350 | case R_MSP430_16_PCREL:
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351 | contents += rel->r_offset;
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352 | srel = (bfd_signed_vma) relocation;
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353 | srel += rel->r_addend;
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354 | srel -= rel->r_offset;
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355 | /* Only branch instructions add 2 to the PC... */
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356 | srel -= (input_section->output_section->vma +
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357 | input_section->output_offset);
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358 |
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359 | if (srel & 1)
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360 | return bfd_reloc_outofrange;
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361 |
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362 | bfd_put_16 (input_bfd, srel & 0xffff, contents);
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363 | break;
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364 |
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365 | case R_MSP430_16_PCREL_BYTE:
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366 | contents += rel->r_offset;
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367 | srel = (bfd_signed_vma) relocation;
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368 | srel += rel->r_addend;
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369 | srel -= rel->r_offset;
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370 | /* Only branch instructions add 2 to the PC... */
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371 | srel -= (input_section->output_section->vma +
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372 | input_section->output_offset);
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373 |
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374 | bfd_put_16 (input_bfd, srel & 0xffff, contents);
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375 | break;
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376 |
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377 | case R_MSP430_16_BYTE:
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378 | contents += rel->r_offset;
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379 | srel = (bfd_signed_vma) relocation;
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380 | srel += rel->r_addend;
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381 | bfd_put_16 (input_bfd, srel & 0xffff, contents);
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382 | break;
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383 |
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384 | case R_MSP430_16:
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385 | contents += rel->r_offset;
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386 | srel = (bfd_signed_vma) relocation;
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387 | srel += rel->r_addend;
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388 |
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389 | if (srel & 1)
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390 | return bfd_reloc_notsupported;
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391 |
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392 | bfd_put_16 (input_bfd, srel & 0xffff, contents);
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393 | break;
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394 |
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395 | default:
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396 | r = _bfd_final_link_relocate (howto, input_bfd, input_section,
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397 | contents, rel->r_offset,
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398 | relocation, rel->r_addend);
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399 | }
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400 |
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401 | return r;
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402 | }
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403 |
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404 | /* Relocate an MSP430 ELF section. */
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405 |
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406 | static bfd_boolean
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407 | elf32_msp430_relocate_section (output_bfd, info, input_bfd, input_section,
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408 | contents, relocs, local_syms, local_sections)
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409 | bfd *output_bfd ATTRIBUTE_UNUSED;
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410 | struct bfd_link_info *info;
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411 | bfd *input_bfd;
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412 | asection *input_section;
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413 | bfd_byte *contents;
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414 | Elf_Internal_Rela *relocs;
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415 | Elf_Internal_Sym *local_syms;
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416 | asection **local_sections;
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417 | {
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418 | Elf_Internal_Shdr *symtab_hdr;
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419 | struct elf_link_hash_entry **sym_hashes;
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420 | Elf_Internal_Rela *rel;
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421 | Elf_Internal_Rela *relend;
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422 |
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423 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
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---|
424 | sym_hashes = elf_sym_hashes (input_bfd);
|
---|
425 | relend = relocs + input_section->reloc_count;
|
---|
426 |
|
---|
427 | for (rel = relocs; rel < relend; rel++)
|
---|
428 | {
|
---|
429 | reloc_howto_type *howto;
|
---|
430 | unsigned long r_symndx;
|
---|
431 | Elf_Internal_Sym *sym;
|
---|
432 | asection *sec;
|
---|
433 | struct elf_link_hash_entry *h;
|
---|
434 | bfd_vma relocation;
|
---|
435 | bfd_reloc_status_type r;
|
---|
436 | const char *name = NULL;
|
---|
437 | int r_type;
|
---|
438 |
|
---|
439 | /* This is a final link. */
|
---|
440 |
|
---|
441 | r_type = ELF32_R_TYPE (rel->r_info);
|
---|
442 | r_symndx = ELF32_R_SYM (rel->r_info);
|
---|
443 | howto = elf_msp430_howto_table + ELF32_R_TYPE (rel->r_info);
|
---|
444 | h = NULL;
|
---|
445 | sym = NULL;
|
---|
446 | sec = NULL;
|
---|
447 |
|
---|
448 | if (r_symndx < symtab_hdr->sh_info)
|
---|
449 | {
|
---|
450 | sym = local_syms + r_symndx;
|
---|
451 | sec = local_sections[r_symndx];
|
---|
452 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
|
---|
453 |
|
---|
454 | name = bfd_elf_string_from_elf_section
|
---|
455 | (input_bfd, symtab_hdr->sh_link, sym->st_name);
|
---|
456 | name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
|
---|
457 | }
|
---|
458 | else
|
---|
459 | {
|
---|
460 | h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
---|
461 |
|
---|
462 | while (h->root.type == bfd_link_hash_indirect
|
---|
463 | || h->root.type == bfd_link_hash_warning)
|
---|
464 | h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
---|
465 |
|
---|
466 | name = h->root.root.string;
|
---|
467 |
|
---|
468 | if (h->root.type == bfd_link_hash_defined
|
---|
469 | || h->root.type == bfd_link_hash_defweak)
|
---|
470 | {
|
---|
471 | sec = h->root.u.def.section;
|
---|
472 | relocation = (h->root.u.def.value
|
---|
473 | + sec->output_section->vma + sec->output_offset);
|
---|
474 | }
|
---|
475 | else if (h->root.type == bfd_link_hash_undefweak)
|
---|
476 | {
|
---|
477 | relocation = 0;
|
---|
478 | }
|
---|
479 | else
|
---|
480 | {
|
---|
481 | if (!((*info->callbacks->undefined_symbol)
|
---|
482 | (info, h->root.root.string, input_bfd,
|
---|
483 | input_section, rel->r_offset, TRUE)))
|
---|
484 | return FALSE;
|
---|
485 | relocation = 0;
|
---|
486 | }
|
---|
487 | }
|
---|
488 |
|
---|
489 | r = msp430_final_link_relocate (howto, input_bfd, input_section,
|
---|
490 | contents, rel, relocation);
|
---|
491 |
|
---|
492 | if (r != bfd_reloc_ok)
|
---|
493 | {
|
---|
494 | const char *msg = (const char *) NULL;
|
---|
495 |
|
---|
496 | switch (r)
|
---|
497 | {
|
---|
498 | case bfd_reloc_overflow:
|
---|
499 | r = info->callbacks->reloc_overflow
|
---|
500 | (info, name, howto->name, (bfd_vma) 0,
|
---|
501 | input_bfd, input_section, rel->r_offset);
|
---|
502 | break;
|
---|
503 |
|
---|
504 | case bfd_reloc_undefined:
|
---|
505 | r = info->callbacks->undefined_symbol
|
---|
506 | (info, name, input_bfd, input_section, rel->r_offset, TRUE);
|
---|
507 | break;
|
---|
508 |
|
---|
509 | case bfd_reloc_outofrange:
|
---|
510 | msg = _("internal error: out of range error");
|
---|
511 | break;
|
---|
512 |
|
---|
513 | case bfd_reloc_notsupported:
|
---|
514 | msg = _("internal error: unsupported relocation error");
|
---|
515 | break;
|
---|
516 |
|
---|
517 | case bfd_reloc_dangerous:
|
---|
518 | msg = _("internal error: dangerous relocation");
|
---|
519 | break;
|
---|
520 |
|
---|
521 | default:
|
---|
522 | msg = _("internal error: unknown error");
|
---|
523 | break;
|
---|
524 | }
|
---|
525 |
|
---|
526 | if (msg)
|
---|
527 | r = info->callbacks->warning
|
---|
528 | (info, msg, name, input_bfd, input_section, rel->r_offset);
|
---|
529 |
|
---|
530 | if (!r)
|
---|
531 | return FALSE;
|
---|
532 | }
|
---|
533 |
|
---|
534 | }
|
---|
535 |
|
---|
536 | return TRUE;
|
---|
537 | }
|
---|
538 |
|
---|
539 | /* The final processing done just before writing out a MSP430 ELF object
|
---|
540 | file. This gets the MSP430 architecture right based on the machine
|
---|
541 | number. */
|
---|
542 |
|
---|
543 | static void
|
---|
544 | bfd_elf_msp430_final_write_processing (abfd, linker)
|
---|
545 | bfd *abfd;
|
---|
546 | bfd_boolean linker ATTRIBUTE_UNUSED;
|
---|
547 | {
|
---|
548 | unsigned long val;
|
---|
549 |
|
---|
550 | switch (bfd_get_mach (abfd))
|
---|
551 | {
|
---|
552 | default:
|
---|
553 | case bfd_mach_msp12:
|
---|
554 | val = E_MSP430_MACH_MSP430x12;
|
---|
555 | break;
|
---|
556 |
|
---|
557 | case bfd_mach_msp110:
|
---|
558 | val = E_MSP430_MACH_MSP430x11x1;
|
---|
559 | break;
|
---|
560 |
|
---|
561 | case bfd_mach_msp11:
|
---|
562 | val = E_MSP430_MACH_MSP430x11;
|
---|
563 | break;
|
---|
564 |
|
---|
565 | case bfd_mach_msp13:
|
---|
566 | val = E_MSP430_MACH_MSP430x13;
|
---|
567 | break;
|
---|
568 |
|
---|
569 | case bfd_mach_msp14:
|
---|
570 | val = E_MSP430_MACH_MSP430x14;
|
---|
571 | break;
|
---|
572 |
|
---|
573 | case bfd_mach_msp41:
|
---|
574 | val = E_MSP430_MACH_MSP430x41;
|
---|
575 | break;
|
---|
576 |
|
---|
577 | case bfd_mach_msp43:
|
---|
578 | val = E_MSP430_MACH_MSP430x43;
|
---|
579 | break;
|
---|
580 |
|
---|
581 | case bfd_mach_msp44:
|
---|
582 | val = E_MSP430_MACH_MSP430x44;
|
---|
583 | break;
|
---|
584 |
|
---|
585 | case bfd_mach_msp31:
|
---|
586 | val = E_MSP430_MACH_MSP430x31;
|
---|
587 | break;
|
---|
588 |
|
---|
589 | case bfd_mach_msp32:
|
---|
590 | val = E_MSP430_MACH_MSP430x32;
|
---|
591 | break;
|
---|
592 |
|
---|
593 | case bfd_mach_msp33:
|
---|
594 | val = E_MSP430_MACH_MSP430x33;
|
---|
595 | break;
|
---|
596 |
|
---|
597 | case bfd_mach_msp15:
|
---|
598 | val = E_MSP430_MACH_MSP430x15;
|
---|
599 | break;
|
---|
600 |
|
---|
601 | case bfd_mach_msp16:
|
---|
602 | val = E_MSP430_MACH_MSP430x16;
|
---|
603 | break;
|
---|
604 | }
|
---|
605 |
|
---|
606 | elf_elfheader (abfd)->e_machine = EM_MSP430;
|
---|
607 | elf_elfheader (abfd)->e_flags &= ~EF_MSP430_MACH;
|
---|
608 | elf_elfheader (abfd)->e_flags |= val;
|
---|
609 | }
|
---|
610 |
|
---|
611 | /* Set the right machine number. */
|
---|
612 |
|
---|
613 | static bfd_boolean
|
---|
614 | elf32_msp430_object_p (abfd)
|
---|
615 | bfd *abfd;
|
---|
616 | {
|
---|
617 | int e_set = bfd_mach_msp14;
|
---|
618 |
|
---|
619 | if (elf_elfheader (abfd)->e_machine == EM_MSP430
|
---|
620 | || elf_elfheader (abfd)->e_machine == EM_MSP430_OLD)
|
---|
621 | {
|
---|
622 | int e_mach = elf_elfheader (abfd)->e_flags & EF_MSP430_MACH;
|
---|
623 |
|
---|
624 | switch (e_mach)
|
---|
625 | {
|
---|
626 | default:
|
---|
627 | case E_MSP430_MACH_MSP430x12:
|
---|
628 | e_set = bfd_mach_msp12;
|
---|
629 | break;
|
---|
630 |
|
---|
631 | case E_MSP430_MACH_MSP430x11:
|
---|
632 | e_set = bfd_mach_msp11;
|
---|
633 | break;
|
---|
634 |
|
---|
635 | case E_MSP430_MACH_MSP430x11x1:
|
---|
636 | e_set = bfd_mach_msp110;
|
---|
637 | break;
|
---|
638 |
|
---|
639 | case E_MSP430_MACH_MSP430x13:
|
---|
640 | e_set = bfd_mach_msp13;
|
---|
641 | break;
|
---|
642 |
|
---|
643 | case E_MSP430_MACH_MSP430x14:
|
---|
644 | e_set = bfd_mach_msp14;
|
---|
645 | break;
|
---|
646 |
|
---|
647 | case E_MSP430_MACH_MSP430x41:
|
---|
648 | e_set = bfd_mach_msp41;
|
---|
649 | break;
|
---|
650 |
|
---|
651 | case E_MSP430_MACH_MSP430x31:
|
---|
652 | e_set = bfd_mach_msp31;
|
---|
653 | break;
|
---|
654 |
|
---|
655 | case E_MSP430_MACH_MSP430x32:
|
---|
656 | e_set = bfd_mach_msp32;
|
---|
657 | break;
|
---|
658 |
|
---|
659 | case E_MSP430_MACH_MSP430x33:
|
---|
660 | e_set = bfd_mach_msp33;
|
---|
661 | break;
|
---|
662 |
|
---|
663 | case E_MSP430_MACH_MSP430x43:
|
---|
664 | e_set = bfd_mach_msp43;
|
---|
665 | break;
|
---|
666 |
|
---|
667 | case E_MSP430_MACH_MSP430x44:
|
---|
668 | e_set = bfd_mach_msp44;
|
---|
669 | break;
|
---|
670 |
|
---|
671 | case E_MSP430_MACH_MSP430x15:
|
---|
672 | e_set = bfd_mach_msp15;
|
---|
673 | break;
|
---|
674 |
|
---|
675 | case E_MSP430_MACH_MSP430x16:
|
---|
676 | e_set = bfd_mach_msp16;
|
---|
677 | break;
|
---|
678 | }
|
---|
679 | }
|
---|
680 |
|
---|
681 | return bfd_default_set_arch_mach (abfd, bfd_arch_msp430, e_set);
|
---|
682 | }
|
---|
683 |
|
---|
684 | static void
|
---|
685 | elf32_msp430_post_process_headers (abfd, link_info)
|
---|
686 | bfd *abfd;
|
---|
687 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
|
---|
688 | {
|
---|
689 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */
|
---|
690 |
|
---|
691 | i_ehdrp = elf_elfheader (abfd);
|
---|
692 |
|
---|
693 | #ifndef ELFOSABI_STANDALONE
|
---|
694 | #define ELFOSABI_STANDALONE 255
|
---|
695 | #endif
|
---|
696 |
|
---|
697 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_STANDALONE;
|
---|
698 | }
|
---|
699 |
|
---|
700 |
|
---|
701 | #define ELF_ARCH bfd_arch_msp430
|
---|
702 | #define ELF_MACHINE_CODE EM_MSP430
|
---|
703 | #define ELF_MACHINE_ALT1 EM_MSP430_OLD
|
---|
704 | #define ELF_MAXPAGESIZE 1
|
---|
705 |
|
---|
706 | #define TARGET_LITTLE_SYM bfd_elf32_msp430_vec
|
---|
707 | #define TARGET_LITTLE_NAME "elf32-msp430"
|
---|
708 |
|
---|
709 | #define elf_info_to_howto msp430_info_to_howto_rela
|
---|
710 | #define elf_info_to_howto_rel NULL
|
---|
711 | #define elf_backend_relocate_section elf32_msp430_relocate_section
|
---|
712 | #define elf_backend_gc_mark_hook elf32_msp430_gc_mark_hook
|
---|
713 | #define elf_backend_gc_sweep_hook elf32_msp430_gc_sweep_hook
|
---|
714 | #define elf_backend_check_relocs elf32_msp430_check_relocs
|
---|
715 | #define elf_backend_can_gc_sections 1
|
---|
716 | #define elf_backend_final_write_processing bfd_elf_msp430_final_write_processing
|
---|
717 | #define elf_backend_object_p elf32_msp430_object_p
|
---|
718 | #define elf_backend_post_process_headers elf32_msp430_post_process_headers
|
---|
719 |
|
---|
720 | #include "elf32-target.h"
|
---|