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5191 | serge | 1 | /* MIPS ELF support for BFD. |
2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
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3 | 2003, 2004, 2005, 2008, 2009, 2010, 2013 |
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4 | Free Software Foundation, Inc. |
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5 | |||
6 | By Ian Lance Taylor, Cygnus Support, |
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7 | information in the System V Application Binary Interface, MIPS |
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8 | Processor Supplement. |
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9 | |||
10 | This file is part of BFD, the Binary File Descriptor library. |
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11 | |||
12 | This program is free software; you can redistribute it and/or modify |
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13 | it under the terms of the GNU General Public License as published by |
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14 | the Free Software Foundation; either version 3 of the License, or |
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15 | (at your option) any later version. |
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16 | |||
17 | This program is distributed in the hope that it will be useful, |
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18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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20 | GNU General Public License for more details. |
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21 | |||
22 | You should have received a copy of the GNU General Public License |
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23 | along with this program; if not, write to the Free Software |
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24 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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25 | MA 02110-1301, USA. */ |
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26 | |||
27 | /* This file holds definitions specific to the MIPS ELF ABI. Note |
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28 | that most of this is not actually implemented by BFD. */ |
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29 | |||
30 | #ifndef _ELF_MIPS_H |
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31 | #define _ELF_MIPS_H |
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32 | |||
33 | #include "elf/reloc-macros.h" |
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34 | |||
35 | /* Relocation types. */ |
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36 | START_RELOC_NUMBERS (elf_mips_reloc_type) |
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37 | RELOC_NUMBER (R_MIPS_NONE, 0) |
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38 | RELOC_NUMBER (R_MIPS_16, 1) |
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39 | RELOC_NUMBER (R_MIPS_32, 2) /* In Elf 64: alias R_MIPS_ADD */ |
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40 | RELOC_NUMBER (R_MIPS_REL32, 3) /* In Elf 64: alias R_MIPS_REL */ |
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41 | RELOC_NUMBER (R_MIPS_26, 4) |
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42 | RELOC_NUMBER (R_MIPS_HI16, 5) |
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43 | RELOC_NUMBER (R_MIPS_LO16, 6) |
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44 | RELOC_NUMBER (R_MIPS_GPREL16, 7) /* In Elf 64: alias R_MIPS_GPREL */ |
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45 | RELOC_NUMBER (R_MIPS_LITERAL, 8) |
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46 | RELOC_NUMBER (R_MIPS_GOT16, 9) /* In Elf 64: alias R_MIPS_GOT */ |
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47 | RELOC_NUMBER (R_MIPS_PC16, 10) |
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48 | RELOC_NUMBER (R_MIPS_CALL16, 11) /* In Elf 64: alias R_MIPS_CALL */ |
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49 | RELOC_NUMBER (R_MIPS_GPREL32, 12) |
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50 | /* The remaining relocs are defined on Irix, although they are not |
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51 | in the MIPS ELF ABI. */ |
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52 | RELOC_NUMBER (R_MIPS_UNUSED1, 13) |
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53 | RELOC_NUMBER (R_MIPS_UNUSED2, 14) |
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54 | RELOC_NUMBER (R_MIPS_UNUSED3, 15) |
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55 | RELOC_NUMBER (R_MIPS_SHIFT5, 16) |
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56 | RELOC_NUMBER (R_MIPS_SHIFT6, 17) |
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57 | RELOC_NUMBER (R_MIPS_64, 18) |
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58 | RELOC_NUMBER (R_MIPS_GOT_DISP, 19) |
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59 | RELOC_NUMBER (R_MIPS_GOT_PAGE, 20) |
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60 | RELOC_NUMBER (R_MIPS_GOT_OFST, 21) |
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61 | RELOC_NUMBER (R_MIPS_GOT_HI16, 22) |
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62 | RELOC_NUMBER (R_MIPS_GOT_LO16, 23) |
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63 | RELOC_NUMBER (R_MIPS_SUB, 24) |
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64 | RELOC_NUMBER (R_MIPS_INSERT_A, 25) |
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65 | RELOC_NUMBER (R_MIPS_INSERT_B, 26) |
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66 | RELOC_NUMBER (R_MIPS_DELETE, 27) |
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67 | RELOC_NUMBER (R_MIPS_HIGHER, 28) |
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68 | RELOC_NUMBER (R_MIPS_HIGHEST, 29) |
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69 | RELOC_NUMBER (R_MIPS_CALL_HI16, 30) |
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70 | RELOC_NUMBER (R_MIPS_CALL_LO16, 31) |
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71 | RELOC_NUMBER (R_MIPS_SCN_DISP, 32) |
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72 | RELOC_NUMBER (R_MIPS_REL16, 33) |
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73 | RELOC_NUMBER (R_MIPS_ADD_IMMEDIATE, 34) |
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74 | RELOC_NUMBER (R_MIPS_PJUMP, 35) |
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75 | RELOC_NUMBER (R_MIPS_RELGOT, 36) |
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76 | RELOC_NUMBER (R_MIPS_JALR, 37) |
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77 | /* TLS relocations. */ |
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78 | RELOC_NUMBER (R_MIPS_TLS_DTPMOD32, 38) |
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79 | RELOC_NUMBER (R_MIPS_TLS_DTPREL32, 39) |
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80 | RELOC_NUMBER (R_MIPS_TLS_DTPMOD64, 40) |
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81 | RELOC_NUMBER (R_MIPS_TLS_DTPREL64, 41) |
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82 | RELOC_NUMBER (R_MIPS_TLS_GD, 42) |
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83 | RELOC_NUMBER (R_MIPS_TLS_LDM, 43) |
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84 | RELOC_NUMBER (R_MIPS_TLS_DTPREL_HI16, 44) |
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85 | RELOC_NUMBER (R_MIPS_TLS_DTPREL_LO16, 45) |
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86 | RELOC_NUMBER (R_MIPS_TLS_GOTTPREL, 46) |
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87 | RELOC_NUMBER (R_MIPS_TLS_TPREL32, 47) |
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88 | RELOC_NUMBER (R_MIPS_TLS_TPREL64, 48) |
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89 | RELOC_NUMBER (R_MIPS_TLS_TPREL_HI16, 49) |
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90 | RELOC_NUMBER (R_MIPS_TLS_TPREL_LO16, 50) |
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91 | RELOC_NUMBER (R_MIPS_GLOB_DAT, 51) |
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92 | FAKE_RELOC (R_MIPS_max, 52) |
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93 | /* These relocs are used for the mips16. */ |
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94 | FAKE_RELOC (R_MIPS16_min, 100) |
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95 | RELOC_NUMBER (R_MIPS16_26, 100) |
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96 | RELOC_NUMBER (R_MIPS16_GPREL, 101) |
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97 | RELOC_NUMBER (R_MIPS16_GOT16, 102) |
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98 | RELOC_NUMBER (R_MIPS16_CALL16, 103) |
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99 | RELOC_NUMBER (R_MIPS16_HI16, 104) |
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100 | RELOC_NUMBER (R_MIPS16_LO16, 105) |
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101 | RELOC_NUMBER (R_MIPS16_TLS_GD, 106) |
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102 | RELOC_NUMBER (R_MIPS16_TLS_LDM, 107) |
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103 | RELOC_NUMBER (R_MIPS16_TLS_DTPREL_HI16, 108) |
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104 | RELOC_NUMBER (R_MIPS16_TLS_DTPREL_LO16, 109) |
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105 | RELOC_NUMBER (R_MIPS16_TLS_GOTTPREL, 110) |
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106 | RELOC_NUMBER (R_MIPS16_TLS_TPREL_HI16, 111) |
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107 | RELOC_NUMBER (R_MIPS16_TLS_TPREL_LO16, 112) |
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108 | FAKE_RELOC (R_MIPS16_max, 113) |
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109 | /* These relocations are specific to VxWorks. */ |
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110 | RELOC_NUMBER (R_MIPS_COPY, 126) |
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111 | RELOC_NUMBER (R_MIPS_JUMP_SLOT, 127) |
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112 | |||
113 | /* These relocations are specific to microMIPS. */ |
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114 | FAKE_RELOC (R_MICROMIPS_min, 130) |
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115 | RELOC_NUMBER (R_MICROMIPS_26_S1, 133) |
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116 | RELOC_NUMBER (R_MICROMIPS_HI16, 134) |
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117 | RELOC_NUMBER (R_MICROMIPS_LO16, 135) |
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118 | RELOC_NUMBER (R_MICROMIPS_GPREL16, 136) /* In Elf 64: |
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119 | alias R_MICROMIPS_GPREL */ |
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120 | RELOC_NUMBER (R_MICROMIPS_LITERAL, 137) |
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121 | RELOC_NUMBER (R_MICROMIPS_GOT16, 138) /* In Elf 64: |
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122 | alias R_MICROMIPS_GOT */ |
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123 | RELOC_NUMBER (R_MICROMIPS_PC7_S1, 139) |
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124 | RELOC_NUMBER (R_MICROMIPS_PC10_S1, 140) |
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125 | RELOC_NUMBER (R_MICROMIPS_PC16_S1, 141) |
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126 | RELOC_NUMBER (R_MICROMIPS_CALL16, 142) /* In Elf 64: |
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127 | alias R_MICROMIPS_CALL */ |
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128 | RELOC_NUMBER (R_MICROMIPS_GOT_DISP, 145) |
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129 | RELOC_NUMBER (R_MICROMIPS_GOT_PAGE, 146) |
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130 | RELOC_NUMBER (R_MICROMIPS_GOT_OFST, 147) |
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131 | RELOC_NUMBER (R_MICROMIPS_GOT_HI16, 148) |
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132 | RELOC_NUMBER (R_MICROMIPS_GOT_LO16, 149) |
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133 | RELOC_NUMBER (R_MICROMIPS_SUB, 150) |
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134 | RELOC_NUMBER (R_MICROMIPS_HIGHER, 151) |
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135 | RELOC_NUMBER (R_MICROMIPS_HIGHEST, 152) |
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136 | RELOC_NUMBER (R_MICROMIPS_CALL_HI16, 153) |
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137 | RELOC_NUMBER (R_MICROMIPS_CALL_LO16, 154) |
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138 | RELOC_NUMBER (R_MICROMIPS_SCN_DISP, 155) |
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139 | RELOC_NUMBER (R_MICROMIPS_JALR, 156) |
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140 | RELOC_NUMBER (R_MICROMIPS_HI0_LO16, 157) |
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141 | /* TLS relocations. */ |
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142 | RELOC_NUMBER (R_MICROMIPS_TLS_GD, 162) |
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143 | RELOC_NUMBER (R_MICROMIPS_TLS_LDM, 163) |
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144 | RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_HI16, 164) |
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145 | RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_LO16, 165) |
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146 | RELOC_NUMBER (R_MICROMIPS_TLS_GOTTPREL, 166) |
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147 | RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_HI16, 169) |
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148 | RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_LO16, 170) |
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149 | /* microMIPS GP- and PC-relative relocations. */ |
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150 | RELOC_NUMBER (R_MICROMIPS_GPREL7_S2, 172) |
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151 | RELOC_NUMBER (R_MICROMIPS_PC23_S2, 173) |
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152 | FAKE_RELOC (R_MICROMIPS_max, 174) |
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153 | |||
154 | /* This was a GNU extension used by embedded-PIC. It was co-opted by |
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155 | mips-linux for exception-handling data. GCC stopped using it in |
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156 | May, 2004, then started using it again for compact unwind tables. */ |
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157 | RELOC_NUMBER (R_MIPS_PC32, 248) |
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158 | RELOC_NUMBER (R_MIPS_EH, 249) |
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159 | /* FIXME: this relocation is used internally by gas. */ |
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160 | RELOC_NUMBER (R_MIPS_GNU_REL16_S2, 250) |
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161 | /* These are GNU extensions to enable C++ vtable garbage collection. */ |
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162 | RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253) |
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163 | RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254) |
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164 | END_RELOC_NUMBERS (R_MIPS_maxext) |
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165 | |||
166 | /* Processor specific flags for the ELF header e_flags field. */ |
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167 | |||
168 | /* At least one .noreorder directive appears in the source. */ |
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169 | #define EF_MIPS_NOREORDER 0x00000001 |
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170 | |||
171 | /* File contains position independent code. */ |
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172 | #define EF_MIPS_PIC 0x00000002 |
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173 | |||
174 | /* Code in file uses the standard calling sequence for calling |
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175 | position independent code. */ |
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176 | #define EF_MIPS_CPIC 0x00000004 |
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177 | |||
178 | /* ??? Unknown flag, set in IRIX 6's BSDdup2.o in libbsd.a. */ |
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179 | #define EF_MIPS_XGOT 0x00000008 |
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180 | |||
181 | /* Code in file uses UCODE (obsolete) */ |
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182 | #define EF_MIPS_UCODE 0x00000010 |
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183 | |||
184 | /* Code in file uses new ABI (-n32 on Irix 6). */ |
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185 | #define EF_MIPS_ABI2 0x00000020 |
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186 | |||
187 | /* Process the .MIPS.options section first by ld */ |
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188 | #define EF_MIPS_OPTIONS_FIRST 0x00000080 |
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189 | |||
190 | /* Indicates code compiled for a 64-bit machine in 32-bit mode |
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191 | (regs are 32-bits wide). */ |
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192 | #define EF_MIPS_32BITMODE 0x00000100 |
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193 | |||
194 | /* 32-bit machine but FP registers are 64 bit (-mfp64). */ |
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195 | #define EF_MIPS_FP64 0x00000200 |
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196 | |||
197 | /* Code in file uses the IEEE 754-2008 NaN encoding convention. */ |
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198 | #define EF_MIPS_NAN2008 0x00000400 |
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199 | |||
200 | /* Architectural Extensions used by this file */ |
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201 | #define EF_MIPS_ARCH_ASE 0x0f000000 |
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202 | |||
203 | /* Use MDMX multimedia extensions */ |
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204 | #define EF_MIPS_ARCH_ASE_MDMX 0x08000000 |
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205 | |||
206 | /* Use MIPS-16 ISA extensions */ |
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207 | #define EF_MIPS_ARCH_ASE_M16 0x04000000 |
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208 | |||
209 | /* Use MICROMIPS ISA extensions. */ |
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210 | #define EF_MIPS_ARCH_ASE_MICROMIPS 0x02000000 |
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211 | |||
212 | /* Four bit MIPS architecture field. */ |
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213 | #define EF_MIPS_ARCH 0xf0000000 |
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214 | |||
215 | /* -mips1 code. */ |
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216 | #define E_MIPS_ARCH_1 0x00000000 |
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217 | |||
218 | /* -mips2 code. */ |
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219 | #define E_MIPS_ARCH_2 0x10000000 |
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220 | |||
221 | /* -mips3 code. */ |
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222 | #define E_MIPS_ARCH_3 0x20000000 |
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223 | |||
224 | /* -mips4 code. */ |
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225 | #define E_MIPS_ARCH_4 0x30000000 |
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226 | |||
227 | /* -mips5 code. */ |
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228 | #define E_MIPS_ARCH_5 0x40000000 |
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229 | |||
230 | /* -mips32 code. */ |
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231 | #define E_MIPS_ARCH_32 0x50000000 |
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232 | |||
233 | /* -mips64 code. */ |
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234 | #define E_MIPS_ARCH_64 0x60000000 |
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235 | |||
236 | /* -mips32r2 code. */ |
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237 | #define E_MIPS_ARCH_32R2 0x70000000 |
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238 | |||
239 | /* -mips64r2 code. */ |
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240 | #define E_MIPS_ARCH_64R2 0x80000000 |
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241 | |||
242 | /* The ABI of the file. Also see EF_MIPS_ABI2 above. */ |
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243 | #define EF_MIPS_ABI 0x0000F000 |
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244 | |||
245 | /* The original o32 abi. */ |
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246 | #define E_MIPS_ABI_O32 0x00001000 |
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247 | |||
248 | /* O32 extended to work on 64 bit architectures */ |
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249 | #define E_MIPS_ABI_O64 0x00002000 |
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250 | |||
251 | /* EABI in 32 bit mode */ |
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252 | #define E_MIPS_ABI_EABI32 0x00003000 |
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253 | |||
254 | /* EABI in 64 bit mode */ |
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255 | #define E_MIPS_ABI_EABI64 0x00004000 |
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256 | |||
257 | |||
258 | /* Machine variant if we know it. This field was invented at Cygnus, |
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259 | but it is hoped that other vendors will adopt it. If some standard |
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260 | is developed, this code should be changed to follow it. */ |
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261 | |||
262 | #define EF_MIPS_MACH 0x00FF0000 |
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263 | |||
264 | /* Cygnus is choosing values between 80 and 9F; |
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265 | 00 - 7F should be left for a future standard; |
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266 | the rest are open. */ |
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267 | |||
268 | #define E_MIPS_MACH_3900 0x00810000 |
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269 | #define E_MIPS_MACH_4010 0x00820000 |
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270 | #define E_MIPS_MACH_4100 0x00830000 |
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271 | #define E_MIPS_MACH_4650 0x00850000 |
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272 | #define E_MIPS_MACH_4120 0x00870000 |
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273 | #define E_MIPS_MACH_4111 0x00880000 |
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274 | #define E_MIPS_MACH_SB1 0x008a0000 |
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275 | #define E_MIPS_MACH_OCTEON 0x008b0000 |
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276 | #define E_MIPS_MACH_XLR 0x008c0000 |
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277 | #define E_MIPS_MACH_OCTEON2 0x008d0000 |
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278 | #define E_MIPS_MACH_5400 0x00910000 |
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279 | #define E_MIPS_MACH_5900 0x00920000 |
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280 | #define E_MIPS_MACH_5500 0x00980000 |
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281 | #define E_MIPS_MACH_9000 0x00990000 |
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282 | #define E_MIPS_MACH_LS2E 0x00A00000 |
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283 | #define E_MIPS_MACH_LS2F 0x00A10000 |
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284 | #define E_MIPS_MACH_LS3A 0x00A20000 |
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285 | |||
286 | /* Processor specific section indices. These sections do not actually |
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287 | exist. Symbols with a st_shndx field corresponding to one of these |
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288 | values have a special meaning. */ |
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289 | |||
290 | /* Defined and allocated common symbol. Value is virtual address. If |
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291 | relocated, alignment must be preserved. */ |
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292 | #define SHN_MIPS_ACOMMON SHN_LORESERVE |
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293 | |||
294 | /* Defined and allocated text symbol. Value is virtual address. |
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295 | Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ |
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296 | #define SHN_MIPS_TEXT (SHN_LORESERVE + 1) |
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297 | |||
298 | /* Defined and allocated data symbol. Value is virtual address. |
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299 | Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ |
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300 | #define SHN_MIPS_DATA (SHN_LORESERVE + 2) |
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301 | |||
302 | /* Small common symbol. */ |
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303 | #define SHN_MIPS_SCOMMON (SHN_LORESERVE + 3) |
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304 | |||
305 | /* Small undefined symbol. */ |
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306 | #define SHN_MIPS_SUNDEFINED (SHN_LORESERVE + 4) |
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307 | |||
308 | /* Processor specific section types. */ |
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309 | |||
310 | /* Section contains the set of dynamic shared objects used when |
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311 | statically linking. */ |
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312 | #define SHT_MIPS_LIBLIST 0x70000000 |
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313 | |||
314 | /* I'm not sure what this is, but it's used on Irix 5. */ |
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315 | #define SHT_MIPS_MSYM 0x70000001 |
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316 | |||
317 | /* Section contains list of symbols whose definitions conflict with |
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318 | symbols defined in shared objects. */ |
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319 | #define SHT_MIPS_CONFLICT 0x70000002 |
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320 | |||
321 | /* Section contains the global pointer table. */ |
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322 | #define SHT_MIPS_GPTAB 0x70000003 |
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323 | |||
324 | /* Section contains microcode information. The exact format is |
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325 | unspecified. */ |
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326 | #define SHT_MIPS_UCODE 0x70000004 |
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327 | |||
328 | /* Section contains some sort of debugging information. The exact |
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329 | format is unspecified. It's probably ECOFF symbols. */ |
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330 | #define SHT_MIPS_DEBUG 0x70000005 |
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331 | |||
332 | /* Section contains register usage information. */ |
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333 | #define SHT_MIPS_REGINFO 0x70000006 |
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334 | |||
335 | /* ??? */ |
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336 | #define SHT_MIPS_PACKAGE 0x70000007 |
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337 | |||
338 | /* ??? */ |
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339 | #define SHT_MIPS_PACKSYM 0x70000008 |
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340 | |||
341 | /* ??? */ |
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342 | #define SHT_MIPS_RELD 0x70000009 |
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343 | |||
344 | /* Section contains interface information. */ |
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345 | #define SHT_MIPS_IFACE 0x7000000b |
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346 | |||
347 | /* Section contains description of contents of another section. */ |
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348 | #define SHT_MIPS_CONTENT 0x7000000c |
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349 | |||
350 | /* Section contains miscellaneous options. */ |
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351 | #define SHT_MIPS_OPTIONS 0x7000000d |
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352 | |||
353 | /* ??? */ |
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354 | #define SHT_MIPS_SHDR 0x70000010 |
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355 | |||
356 | /* ??? */ |
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357 | #define SHT_MIPS_FDESC 0x70000011 |
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358 | |||
359 | /* ??? */ |
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360 | #define SHT_MIPS_EXTSYM 0x70000012 |
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361 | |||
362 | /* ??? */ |
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363 | #define SHT_MIPS_DENSE 0x70000013 |
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364 | |||
365 | /* ??? */ |
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366 | #define SHT_MIPS_PDESC 0x70000014 |
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367 | |||
368 | /* ??? */ |
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369 | #define SHT_MIPS_LOCSYM 0x70000015 |
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370 | |||
371 | /* ??? */ |
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372 | #define SHT_MIPS_AUXSYM 0x70000016 |
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373 | |||
374 | /* ??? */ |
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375 | #define SHT_MIPS_OPTSYM 0x70000017 |
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376 | |||
377 | /* ??? */ |
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378 | #define SHT_MIPS_LOCSTR 0x70000018 |
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379 | |||
380 | /* ??? */ |
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381 | #define SHT_MIPS_LINE 0x70000019 |
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382 | |||
383 | /* ??? */ |
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384 | #define SHT_MIPS_RFDESC 0x7000001a |
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385 | |||
386 | /* Delta C++: symbol table */ |
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387 | #define SHT_MIPS_DELTASYM 0x7000001b |
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388 | |||
389 | /* Delta C++: instance table */ |
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390 | #define SHT_MIPS_DELTAINST 0x7000001c |
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391 | |||
392 | /* Delta C++: class table */ |
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393 | #define SHT_MIPS_DELTACLASS 0x7000001d |
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394 | |||
395 | /* DWARF debugging section. */ |
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396 | #define SHT_MIPS_DWARF 0x7000001e |
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397 | |||
398 | /* Delta C++: declarations */ |
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399 | #define SHT_MIPS_DELTADECL 0x7000001f |
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400 | |||
401 | /* List of libraries the binary depends on. Includes a time stamp, version |
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402 | number. */ |
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403 | #define SHT_MIPS_SYMBOL_LIB 0x70000020 |
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404 | |||
405 | /* Events section. */ |
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406 | #define SHT_MIPS_EVENTS 0x70000021 |
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407 | |||
408 | /* ??? */ |
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409 | #define SHT_MIPS_TRANSLATE 0x70000022 |
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410 | |||
411 | /* Special pixie sections */ |
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412 | #define SHT_MIPS_PIXIE 0x70000023 |
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413 | |||
414 | /* Address translation table (for debug info) */ |
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415 | #define SHT_MIPS_XLATE 0x70000024 |
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416 | |||
417 | /* SGI internal address translation table (for debug info) */ |
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418 | #define SHT_MIPS_XLATE_DEBUG 0x70000025 |
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419 | |||
420 | /* Intermediate code */ |
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421 | #define SHT_MIPS_WHIRL 0x70000026 |
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422 | |||
423 | /* C++ exception handling region info */ |
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424 | #define SHT_MIPS_EH_REGION 0x70000027 |
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425 | |||
426 | /* Obsolete address translation table (for debug info) */ |
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427 | #define SHT_MIPS_XLATE_OLD 0x70000028 |
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428 | |||
429 | /* Runtime procedure descriptor table exception information (ucode) ??? */ |
||
430 | #define SHT_MIPS_PDR_EXCEPTION 0x70000029 |
||
431 | |||
432 | |||
433 | /* A section of type SHT_MIPS_LIBLIST contains an array of the |
||
434 | following structure. The sh_link field is the section index of the |
||
435 | string table. The sh_info field is the number of entries in the |
||
436 | section. */ |
||
437 | typedef struct |
||
438 | { |
||
439 | /* String table index for name of shared object. */ |
||
440 | unsigned long l_name; |
||
441 | /* Time stamp. */ |
||
442 | unsigned long l_time_stamp; |
||
443 | /* Checksum of symbol names and common sizes. */ |
||
444 | unsigned long l_checksum; |
||
445 | /* String table index for version. */ |
||
446 | unsigned long l_version; |
||
447 | /* Flags. */ |
||
448 | unsigned long l_flags; |
||
449 | } Elf32_Lib; |
||
450 | |||
451 | /* The external version of Elf32_Lib. */ |
||
452 | typedef struct |
||
453 | { |
||
454 | unsigned char l_name[4]; |
||
455 | unsigned char l_time_stamp[4]; |
||
456 | unsigned char l_checksum[4]; |
||
457 | unsigned char l_version[4]; |
||
458 | unsigned char l_flags[4]; |
||
459 | } Elf32_External_Lib; |
||
460 | |||
461 | /* The l_flags field of an Elf32_Lib structure may contain the |
||
462 | following flags. */ |
||
463 | |||
464 | /* Require an exact match at runtime. */ |
||
465 | #define LL_EXACT_MATCH 0x00000001 |
||
466 | |||
467 | /* Ignore version incompatibilities at runtime. */ |
||
468 | #define LL_IGNORE_INT_VER 0x00000002 |
||
469 | |||
470 | /* Require matching minor version number. */ |
||
471 | #define LL_REQUIRE_MINOR 0x00000004 |
||
472 | |||
473 | /* ??? */ |
||
474 | #define LL_EXPORTS 0x00000008 |
||
475 | |||
476 | /* Delay loading of this library until really needed. */ |
||
477 | #define LL_DELAY_LOAD 0x00000010 |
||
478 | |||
479 | /* ??? Delta C++ stuff ??? */ |
||
480 | #define LL_DELTA 0x00000020 |
||
481 | |||
482 | |||
483 | /* A section of type SHT_MIPS_CONFLICT is an array of indices into the |
||
484 | .dynsym section. Each element has the following type. */ |
||
485 | typedef unsigned long Elf32_Conflict; |
||
486 | typedef unsigned char Elf32_External_Conflict[4]; |
||
487 | |||
488 | typedef unsigned long Elf64_Conflict; |
||
489 | typedef unsigned char Elf64_External_Conflict[8]; |
||
490 | |||
491 | /* A section of type SHT_MIPS_GPTAB contains information about how |
||
492 | much GP space would be required for different -G arguments. This |
||
493 | information is only used so that the linker can provide informative |
||
494 | suggestions as to the best -G value to use. The sh_info field is |
||
495 | the index of the section for which this information applies. The |
||
496 | contents of the section are an array of the following union. The |
||
497 | first element uses the gt_header field. The remaining elements use |
||
498 | the gt_entry field. */ |
||
499 | typedef union |
||
500 | { |
||
501 | struct |
||
502 | { |
||
503 | /* -G value actually used for this object file. */ |
||
504 | unsigned long gt_current_g_value; |
||
505 | /* Unused. */ |
||
506 | unsigned long gt_unused; |
||
507 | } gt_header; |
||
508 | struct |
||
509 | { |
||
510 | /* If this -G argument has been used... */ |
||
511 | unsigned long gt_g_value; |
||
512 | /* ...this many GP section bytes would be required. */ |
||
513 | unsigned long gt_bytes; |
||
514 | } gt_entry; |
||
515 | } Elf32_gptab; |
||
516 | |||
517 | /* The external version of Elf32_gptab. */ |
||
518 | |||
519 | typedef union |
||
520 | { |
||
521 | struct |
||
522 | { |
||
523 | unsigned char gt_current_g_value[4]; |
||
524 | unsigned char gt_unused[4]; |
||
525 | } gt_header; |
||
526 | struct |
||
527 | { |
||
528 | unsigned char gt_g_value[4]; |
||
529 | unsigned char gt_bytes[4]; |
||
530 | } gt_entry; |
||
531 | } Elf32_External_gptab; |
||
532 | |||
533 | /* A section of type SHT_MIPS_REGINFO contains the following |
||
534 | structure. */ |
||
535 | typedef struct |
||
536 | { |
||
537 | /* Mask of general purpose registers used. */ |
||
538 | unsigned long ri_gprmask; |
||
539 | /* Mask of co-processor registers used. */ |
||
540 | unsigned long ri_cprmask[4]; |
||
541 | /* GP register value for this object file. */ |
||
542 | long ri_gp_value; |
||
543 | } Elf32_RegInfo; |
||
544 | |||
545 | /* The external version of the Elf_RegInfo structure. */ |
||
546 | typedef struct |
||
547 | { |
||
548 | unsigned char ri_gprmask[4]; |
||
549 | unsigned char ri_cprmask[4][4]; |
||
550 | unsigned char ri_gp_value[4]; |
||
551 | } Elf32_External_RegInfo; |
||
552 | |||
553 | /* MIPS ELF .reginfo swapping routines. */ |
||
554 | extern void bfd_mips_elf32_swap_reginfo_in |
||
555 | (bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *); |
||
556 | extern void bfd_mips_elf32_swap_reginfo_out |
||
557 | (bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *); |
||
558 | |||
559 | /* Processor specific section flags. */ |
||
560 | |||
561 | /* This section must be in the global data area. */ |
||
562 | #define SHF_MIPS_GPREL 0x10000000 |
||
563 | |||
564 | /* This section should be merged. */ |
||
565 | #define SHF_MIPS_MERGE 0x20000000 |
||
566 | |||
567 | /* This section contains address data of size implied by section |
||
568 | element size. */ |
||
569 | #define SHF_MIPS_ADDR 0x40000000 |
||
570 | |||
571 | /* This section contains string data. */ |
||
572 | #define SHF_MIPS_STRING 0x80000000 |
||
573 | |||
574 | /* This section may not be stripped. */ |
||
575 | #define SHF_MIPS_NOSTRIP 0x08000000 |
||
576 | |||
577 | /* This section is local to threads. */ |
||
578 | #define SHF_MIPS_LOCAL 0x04000000 |
||
579 | |||
580 | /* Linker should generate implicit weak names for this section. */ |
||
581 | #define SHF_MIPS_NAMES 0x02000000 |
||
582 | |||
583 | /* Section contais text/data which may be replicated in other sections. |
||
584 | Linker should retain only one copy. */ |
||
585 | #define SHF_MIPS_NODUPES 0x01000000 |
||
586 | |||
587 | /* Processor specific program header types. */ |
||
588 | |||
589 | /* Register usage information. Identifies one .reginfo section. */ |
||
590 | #define PT_MIPS_REGINFO 0x70000000 |
||
591 | |||
592 | /* Runtime procedure table. */ |
||
593 | #define PT_MIPS_RTPROC 0x70000001 |
||
594 | |||
595 | /* .MIPS.options section. */ |
||
596 | #define PT_MIPS_OPTIONS 0x70000002 |
||
597 | |||
598 | /* Processor specific dynamic array tags. */ |
||
599 | |||
600 | /* 32 bit version number for runtime linker interface. */ |
||
601 | #define DT_MIPS_RLD_VERSION 0x70000001 |
||
602 | |||
603 | /* Time stamp. */ |
||
604 | #define DT_MIPS_TIME_STAMP 0x70000002 |
||
605 | |||
606 | /* Checksum of external strings and common sizes. */ |
||
607 | #define DT_MIPS_ICHECKSUM 0x70000003 |
||
608 | |||
609 | /* Index of version string in string table. */ |
||
610 | #define DT_MIPS_IVERSION 0x70000004 |
||
611 | |||
612 | /* 32 bits of flags. */ |
||
613 | #define DT_MIPS_FLAGS 0x70000005 |
||
614 | |||
615 | /* Base address of the segment. */ |
||
616 | #define DT_MIPS_BASE_ADDRESS 0x70000006 |
||
617 | |||
618 | /* ??? */ |
||
619 | #define DT_MIPS_MSYM 0x70000007 |
||
620 | |||
621 | /* Address of .conflict section. */ |
||
622 | #define DT_MIPS_CONFLICT 0x70000008 |
||
623 | |||
624 | /* Address of .liblist section. */ |
||
625 | #define DT_MIPS_LIBLIST 0x70000009 |
||
626 | |||
627 | /* Number of local global offset table entries. */ |
||
628 | #define DT_MIPS_LOCAL_GOTNO 0x7000000a |
||
629 | |||
630 | /* Number of entries in the .conflict section. */ |
||
631 | #define DT_MIPS_CONFLICTNO 0x7000000b |
||
632 | |||
633 | /* Number of entries in the .liblist section. */ |
||
634 | #define DT_MIPS_LIBLISTNO 0x70000010 |
||
635 | |||
636 | /* Number of entries in the .dynsym section. */ |
||
637 | #define DT_MIPS_SYMTABNO 0x70000011 |
||
638 | |||
639 | /* Index of first external dynamic symbol not referenced locally. */ |
||
640 | #define DT_MIPS_UNREFEXTNO 0x70000012 |
||
641 | |||
642 | /* Index of first dynamic symbol in global offset table. */ |
||
643 | #define DT_MIPS_GOTSYM 0x70000013 |
||
644 | |||
645 | /* Number of page table entries in global offset table. */ |
||
646 | #define DT_MIPS_HIPAGENO 0x70000014 |
||
647 | |||
648 | /* Address of run time loader map, used for debugging. */ |
||
649 | #define DT_MIPS_RLD_MAP 0x70000016 |
||
650 | |||
651 | /* Delta C++ class definition. */ |
||
652 | #define DT_MIPS_DELTA_CLASS 0x70000017 |
||
653 | |||
654 | /* Number of entries in DT_MIPS_DELTA_CLASS. */ |
||
655 | #define DT_MIPS_DELTA_CLASS_NO 0x70000018 |
||
656 | |||
657 | /* Delta C++ class instances. */ |
||
658 | #define DT_MIPS_DELTA_INSTANCE 0x70000019 |
||
659 | |||
660 | /* Number of entries in DT_MIPS_DELTA_INSTANCE. */ |
||
661 | #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a |
||
662 | |||
663 | /* Delta relocations. */ |
||
664 | #define DT_MIPS_DELTA_RELOC 0x7000001b |
||
665 | |||
666 | /* Number of entries in DT_MIPS_DELTA_RELOC. */ |
||
667 | #define DT_MIPS_DELTA_RELOC_NO 0x7000001c |
||
668 | |||
669 | /* Delta symbols that Delta relocations refer to. */ |
||
670 | #define DT_MIPS_DELTA_SYM 0x7000001d |
||
671 | |||
672 | /* Number of entries in DT_MIPS_DELTA_SYM. */ |
||
673 | #define DT_MIPS_DELTA_SYM_NO 0x7000001e |
||
674 | |||
675 | /* Delta symbols that hold class declarations. */ |
||
676 | #define DT_MIPS_DELTA_CLASSSYM 0x70000020 |
||
677 | |||
678 | /* Number of entries in DT_MIPS_DELTA_CLASSSYM. */ |
||
679 | #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 |
||
680 | |||
681 | /* Flags indicating information about C++ flavor. */ |
||
682 | #define DT_MIPS_CXX_FLAGS 0x70000022 |
||
683 | |||
684 | /* Pixie information (???). */ |
||
685 | #define DT_MIPS_PIXIE_INIT 0x70000023 |
||
686 | |||
687 | /* Address of .MIPS.symlib */ |
||
688 | #define DT_MIPS_SYMBOL_LIB 0x70000024 |
||
689 | |||
690 | /* The GOT index of the first PTE for a segment */ |
||
691 | #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 |
||
692 | |||
693 | /* The GOT index of the first PTE for a local symbol */ |
||
694 | #define DT_MIPS_LOCAL_GOTIDX 0x70000026 |
||
695 | |||
696 | /* The GOT index of the first PTE for a hidden symbol */ |
||
697 | #define DT_MIPS_HIDDEN_GOTIDX 0x70000027 |
||
698 | |||
699 | /* The GOT index of the first PTE for a protected symbol */ |
||
700 | #define DT_MIPS_PROTECTED_GOTIDX 0x70000028 |
||
701 | |||
702 | /* Address of `.MIPS.options'. */ |
||
703 | #define DT_MIPS_OPTIONS 0x70000029 |
||
704 | |||
705 | /* Address of `.interface'. */ |
||
706 | #define DT_MIPS_INTERFACE 0x7000002a |
||
707 | |||
708 | /* ??? */ |
||
709 | #define DT_MIPS_DYNSTR_ALIGN 0x7000002b |
||
710 | |||
711 | /* Size of the .interface section. */ |
||
712 | #define DT_MIPS_INTERFACE_SIZE 0x7000002c |
||
713 | |||
714 | /* Size of rld_text_resolve function stored in the GOT. */ |
||
715 | #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d |
||
716 | |||
717 | /* Default suffix of DSO to be added by rld on dlopen() calls. */ |
||
718 | #define DT_MIPS_PERF_SUFFIX 0x7000002e |
||
719 | |||
720 | /* Size of compact relocation section (O32). */ |
||
721 | #define DT_MIPS_COMPACT_SIZE 0x7000002f |
||
722 | |||
723 | /* GP value for auxiliary GOTs. */ |
||
724 | #define DT_MIPS_GP_VALUE 0x70000030 |
||
725 | |||
726 | /* Address of auxiliary .dynamic. */ |
||
727 | #define DT_MIPS_AUX_DYNAMIC 0x70000031 |
||
728 | |||
729 | /* Address of the base of the PLTGOT. */ |
||
730 | #define DT_MIPS_PLTGOT 0x70000032 |
||
731 | |||
732 | /* Points to the base of a writable PLT. */ |
||
733 | #define DT_MIPS_RWPLT 0x70000034 |
||
734 | |||
735 | /* Flags which may appear in a DT_MIPS_FLAGS entry. */ |
||
736 | |||
737 | /* No flags. */ |
||
738 | #define RHF_NONE 0x00000000 |
||
739 | |||
740 | /* Uses shortcut pointers. */ |
||
741 | #define RHF_QUICKSTART 0x00000001 |
||
742 | |||
743 | /* Hash size is not a power of two. */ |
||
744 | #define RHF_NOTPOT 0x00000002 |
||
745 | |||
746 | /* Ignore LD_LIBRARY_PATH. */ |
||
747 | #define RHS_NO_LIBRARY_REPLACEMENT 0x00000004 |
||
748 | |||
749 | /* DSO address may not be relocated. */ |
||
750 | #define RHF_NO_MOVE 0x00000008 |
||
751 | |||
752 | /* SGI specific features. */ |
||
753 | #define RHF_SGI_ONLY 0x00000010 |
||
754 | |||
755 | /* Guarantee that .init will finish executing before any non-init |
||
756 | code in DSO is called. */ |
||
757 | #define RHF_GUARANTEE_INIT 0x00000020 |
||
758 | |||
759 | /* Contains Delta C++ code. */ |
||
760 | #define RHF_DELTA_C_PLUS_PLUS 0x00000040 |
||
761 | |||
762 | /* Guarantee that .init will start executing before any non-init |
||
763 | code in DSO is called. */ |
||
764 | #define RHF_GUARANTEE_START_INIT 0x00000080 |
||
765 | |||
766 | /* Generated by pixie. */ |
||
767 | #define RHF_PIXIE 0x00000100 |
||
768 | |||
769 | /* Delay-load DSO by default. */ |
||
770 | #define RHF_DEFAULT_DELAY_LOAD 0x00000200 |
||
771 | |||
772 | /* Object may be requickstarted */ |
||
773 | #define RHF_REQUICKSTART 0x00000400 |
||
774 | |||
775 | /* Object has been requickstarted */ |
||
776 | #define RHF_REQUICKSTARTED 0x00000800 |
||
777 | |||
778 | /* Generated by cord. */ |
||
779 | #define RHF_CORD 0x00001000 |
||
780 | |||
781 | /* Object contains no unresolved undef symbols. */ |
||
782 | #define RHF_NO_UNRES_UNDEF 0x00002000 |
||
783 | |||
784 | /* Symbol table is in a safe order. */ |
||
785 | #define RHF_RLD_ORDER_SAFE 0x00004000 |
||
786 | |||
787 | /* Special values for the st_other field in the symbol table. These |
||
788 | are used in an Irix 5 dynamic symbol table. */ |
||
789 | |||
790 | #define STO_DEFAULT STV_DEFAULT |
||
791 | #define STO_INTERNAL STV_INTERNAL |
||
792 | #define STO_HIDDEN STV_HIDDEN |
||
793 | #define STO_PROTECTED STV_PROTECTED |
||
794 | |||
795 | /* Two topmost bits denote the MIPS ISA for .text symbols: |
||
796 | + 00 -- standard MIPS code, |
||
797 | + 10 -- microMIPS code, |
||
798 | + 11 -- MIPS16 code; requires the following two bits to be set too. |
||
799 | Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC. See below |
||
800 | for details. */ |
||
801 | #define STO_MIPS_ISA (3 << 6) |
||
802 | |||
803 | /* The mask spanning the rest of MIPS psABI flags. At most one is expected |
||
804 | to be set except for STO_MIPS16. */ |
||
805 | #define STO_MIPS_FLAGS (~(STO_MIPS_ISA | ELF_ST_VISIBILITY (-1))) |
||
806 | |||
807 | /* The MIPS psABI was updated in 2008 with support for PLTs and copy |
||
808 | relocs. There are therefore two types of nonzero SHN_UNDEF functions: |
||
809 | PLT entries and traditional MIPS lazy binding stubs. We mark the former |
||
810 | with STO_MIPS_PLT to distinguish them from the latter. */ |
||
811 | #define STO_MIPS_PLT 0x8 |
||
812 | #define ELF_ST_IS_MIPS_PLT(other) \ |
||
813 | ((ELF_ST_IS_MIPS16 (other) \ |
||
814 | ? ((other) & (~STO_MIPS16 & STO_MIPS_FLAGS)) \ |
||
815 | : ((other) & STO_MIPS_FLAGS)) == STO_MIPS_PLT) |
||
816 | #define ELF_ST_SET_MIPS_PLT(other) \ |
||
817 | ((ELF_ST_IS_MIPS16 (other) \ |
||
818 | ? ((other) & (STO_MIPS16 | ~STO_MIPS_FLAGS)) \ |
||
819 | : ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PLT) |
||
820 | |||
821 | /* This value is used to mark PIC functions in an object that mixes |
||
822 | PIC and non-PIC. Note that this bit overlaps with STO_MIPS16, |
||
823 | although MIPS16 symbols are never considered to be MIPS_PIC. */ |
||
824 | #define STO_MIPS_PIC 0x20 |
||
825 | #define ELF_ST_IS_MIPS_PIC(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PIC) |
||
826 | #define ELF_ST_SET_MIPS_PIC(other) \ |
||
827 | ((ELF_ST_IS_MIPS16 (other) \ |
||
828 | ? ((other) & ~(STO_MIPS16 | STO_MIPS_FLAGS)) \ |
||
829 | : ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PIC) |
||
830 | |||
831 | /* This value is used for a mips16 .text symbol. */ |
||
832 | #define STO_MIPS16 0xf0 |
||
833 | #define ELF_ST_IS_MIPS16(other) (((other) & STO_MIPS16) == STO_MIPS16) |
||
834 | #define ELF_ST_SET_MIPS16(other) ((other) | STO_MIPS16) |
||
835 | |||
836 | /* This value is used for a microMIPS .text symbol. To distinguish from |
||
837 | STO_MIPS16, we set top two bits to be 10 to denote STO_MICROMIPS. The |
||
838 | mask is STO_MIPS_ISA. */ |
||
839 | #define STO_MICROMIPS (2 << 6) |
||
840 | #define ELF_ST_IS_MICROMIPS(other) (((other) & STO_MIPS_ISA) == STO_MICROMIPS) |
||
841 | #define ELF_ST_SET_MICROMIPS(other) (((other) & ~STO_MIPS_ISA) | STO_MICROMIPS) |
||
842 | |||
843 | /* Whether code compression (either of the MIPS16 or the microMIPS ASEs) |
||
844 | has been indicated for a .text symbol. */ |
||
845 | #define ELF_ST_IS_COMPRESSED(other) \ |
||
846 | (ELF_ST_IS_MIPS16 (other) || ELF_ST_IS_MICROMIPS (other)) |
||
847 | |||
848 | /* This bit is used on Irix to indicate a symbol whose definition |
||
849 | is optional - if, at final link time, it cannot be found, no |
||
850 | error message should be produced. */ |
||
851 | #define STO_OPTIONAL (1 << 2) |
||
852 | /* A macro to examine the STO_OPTIONAL bit. */ |
||
853 | #define ELF_MIPS_IS_OPTIONAL(other) ((other) & STO_OPTIONAL) |
||
854 | |||
855 | /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each |
||
856 | relocation entry specifies up to three actual relocations, all at |
||
857 | the same address. The first relocation which required a symbol |
||
858 | uses the symbol in the r_sym field. The second relocation which |
||
859 | requires a symbol uses the symbol in the r_ssym field. If all |
||
860 | three relocations require a symbol, the third one uses a zero |
||
861 | value. */ |
||
862 | |||
863 | /* An entry in a 64 bit SHT_REL section. */ |
||
864 | |||
865 | typedef struct |
||
866 | { |
||
867 | /* Address of relocation. */ |
||
868 | unsigned char r_offset[8]; |
||
869 | /* Symbol index. */ |
||
870 | unsigned char r_sym[4]; |
||
871 | /* Special symbol. */ |
||
872 | unsigned char r_ssym[1]; |
||
873 | /* Third relocation. */ |
||
874 | unsigned char r_type3[1]; |
||
875 | /* Second relocation. */ |
||
876 | unsigned char r_type2[1]; |
||
877 | /* First relocation. */ |
||
878 | unsigned char r_type[1]; |
||
879 | } Elf64_Mips_External_Rel; |
||
880 | |||
881 | typedef struct |
||
882 | { |
||
883 | /* Address of relocation. */ |
||
884 | bfd_vma r_offset; |
||
885 | /* Symbol index. */ |
||
886 | unsigned long r_sym; |
||
887 | /* Special symbol. */ |
||
888 | unsigned char r_ssym; |
||
889 | /* Third relocation. */ |
||
890 | unsigned char r_type3; |
||
891 | /* Second relocation. */ |
||
892 | unsigned char r_type2; |
||
893 | /* First relocation. */ |
||
894 | unsigned char r_type; |
||
895 | } Elf64_Mips_Internal_Rel; |
||
896 | |||
897 | /* An entry in a 64 bit SHT_RELA section. */ |
||
898 | |||
899 | typedef struct |
||
900 | { |
||
901 | /* Address of relocation. */ |
||
902 | unsigned char r_offset[8]; |
||
903 | /* Symbol index. */ |
||
904 | unsigned char r_sym[4]; |
||
905 | /* Special symbol. */ |
||
906 | unsigned char r_ssym[1]; |
||
907 | /* Third relocation. */ |
||
908 | unsigned char r_type3[1]; |
||
909 | /* Second relocation. */ |
||
910 | unsigned char r_type2[1]; |
||
911 | /* First relocation. */ |
||
912 | unsigned char r_type[1]; |
||
913 | /* Addend. */ |
||
914 | unsigned char r_addend[8]; |
||
915 | } Elf64_Mips_External_Rela; |
||
916 | |||
917 | typedef struct |
||
918 | { |
||
919 | /* Address of relocation. */ |
||
920 | bfd_vma r_offset; |
||
921 | /* Symbol index. */ |
||
922 | unsigned long r_sym; |
||
923 | /* Special symbol. */ |
||
924 | unsigned char r_ssym; |
||
925 | /* Third relocation. */ |
||
926 | unsigned char r_type3; |
||
927 | /* Second relocation. */ |
||
928 | unsigned char r_type2; |
||
929 | /* First relocation. */ |
||
930 | unsigned char r_type; |
||
931 | /* Addend. */ |
||
932 | bfd_signed_vma r_addend; |
||
933 | } Elf64_Mips_Internal_Rela; |
||
934 | |||
935 | /* MIPS ELF 64 relocation info access macros. */ |
||
936 | #define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff) |
||
937 | #define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff) |
||
938 | #define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff) |
||
939 | #define ELF64_MIPS_R_TYPE(i) ((i) & 0xff) |
||
940 | |||
941 | /* Values found in the r_ssym field of a relocation entry. */ |
||
942 | |||
943 | /* No relocation. */ |
||
944 | #define RSS_UNDEF 0 |
||
945 | |||
946 | /* Value of GP. */ |
||
947 | #define RSS_GP 1 |
||
948 | |||
949 | /* Value of GP in object being relocated. */ |
||
950 | #define RSS_GP0 2 |
||
951 | |||
952 | /* Address of location being relocated. */ |
||
953 | #define RSS_LOC 3 |
||
954 | |||
955 | /* A SHT_MIPS_OPTIONS section contains a series of options, each of |
||
956 | which starts with this header. */ |
||
957 | |||
958 | typedef struct |
||
959 | { |
||
960 | /* Type of option. */ |
||
961 | unsigned char kind[1]; |
||
962 | /* Size of option descriptor, including header. */ |
||
963 | unsigned char size[1]; |
||
964 | /* Section index of affected section, or 0 for global option. */ |
||
965 | unsigned char section[2]; |
||
966 | /* Information specific to this kind of option. */ |
||
967 | unsigned char info[4]; |
||
968 | } Elf_External_Options; |
||
969 | |||
970 | typedef struct |
||
971 | { |
||
972 | /* Type of option. */ |
||
973 | unsigned char kind; |
||
974 | /* Size of option descriptor, including header. */ |
||
975 | unsigned char size; |
||
976 | /* Section index of affected section, or 0 for global option. */ |
||
977 | unsigned short section; |
||
978 | /* Information specific to this kind of option. */ |
||
979 | unsigned long info; |
||
980 | } Elf_Internal_Options; |
||
981 | |||
982 | /* MIPS ELF option header swapping routines. */ |
||
983 | extern void bfd_mips_elf_swap_options_in |
||
984 | (bfd *, const Elf_External_Options *, Elf_Internal_Options *); |
||
985 | extern void bfd_mips_elf_swap_options_out |
||
986 | (bfd *, const Elf_Internal_Options *, Elf_External_Options *); |
||
987 | |||
988 | /* Values which may appear in the kind field of an Elf_Options |
||
989 | structure. */ |
||
990 | |||
991 | /* Undefined. */ |
||
992 | #define ODK_NULL 0 |
||
993 | |||
994 | /* Register usage and GP value. */ |
||
995 | #define ODK_REGINFO 1 |
||
996 | |||
997 | /* Exception processing information. */ |
||
998 | #define ODK_EXCEPTIONS 2 |
||
999 | |||
1000 | /* Section padding information. */ |
||
1001 | #define ODK_PAD 3 |
||
1002 | |||
1003 | /* Hardware workarounds performed. */ |
||
1004 | #define ODK_HWPATCH 4 |
||
1005 | |||
1006 | /* Fill value used by the linker. */ |
||
1007 | #define ODK_FILL 5 |
||
1008 | |||
1009 | /* Reserved space for desktop tools. */ |
||
1010 | #define ODK_TAGS 6 |
||
1011 | |||
1012 | /* Hardware workarounds, AND bits when merging. */ |
||
1013 | #define ODK_HWAND 7 |
||
1014 | |||
1015 | /* Hardware workarounds, OR bits when merging. */ |
||
1016 | #define ODK_HWOR 8 |
||
1017 | |||
1018 | /* GP group to use for text/data sections. */ |
||
1019 | #define ODK_GP_GROUP 9 |
||
1020 | |||
1021 | /* ID information. */ |
||
1022 | #define ODK_IDENT 10 |
||
1023 | |||
1024 | /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo |
||
1025 | structure. In the 64 bit ABI, it is the following structure. The |
||
1026 | info field of the options header is not used. */ |
||
1027 | |||
1028 | typedef struct |
||
1029 | { |
||
1030 | /* Mask of general purpose registers used. */ |
||
1031 | unsigned char ri_gprmask[4]; |
||
1032 | /* Padding. */ |
||
1033 | unsigned char ri_pad[4]; |
||
1034 | /* Mask of co-processor registers used. */ |
||
1035 | unsigned char ri_cprmask[4][4]; |
||
1036 | /* GP register value for this object file. */ |
||
1037 | unsigned char ri_gp_value[8]; |
||
1038 | } Elf64_External_RegInfo; |
||
1039 | |||
1040 | typedef struct |
||
1041 | { |
||
1042 | /* Mask of general purpose registers used. */ |
||
1043 | unsigned long ri_gprmask; |
||
1044 | /* Padding. */ |
||
1045 | unsigned long ri_pad; |
||
1046 | /* Mask of co-processor registers used. */ |
||
1047 | unsigned long ri_cprmask[4]; |
||
1048 | /* GP register value for this object file. */ |
||
1049 | bfd_vma ri_gp_value; |
||
1050 | } Elf64_Internal_RegInfo; |
||
1051 | |||
1052 | typedef struct |
||
1053 | { |
||
1054 | /* The hash value computed from the name of the corresponding |
||
1055 | dynamic symbol. */ |
||
1056 | unsigned char ms_hash_value[4]; |
||
1057 | /* Contains both the dynamic relocation index and the symbol flags |
||
1058 | field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used |
||
1059 | to access the individual values. The dynamic relocation index |
||
1060 | identifies the first entry in the .rel.dyn section that |
||
1061 | references the dynamic symbol corresponding to this msym entry. |
||
1062 | If the index is 0, no dynamic relocations are associated with the |
||
1063 | symbol. The symbol flags field is reserved for future use. */ |
||
1064 | unsigned char ms_info[4]; |
||
1065 | } Elf32_External_Msym; |
||
1066 | |||
1067 | typedef struct |
||
1068 | { |
||
1069 | /* The hash value computed from the name of the corresponding |
||
1070 | dynamic symbol. */ |
||
1071 | unsigned long ms_hash_value; |
||
1072 | /* Contains both the dynamic relocation index and the symbol flags |
||
1073 | field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used |
||
1074 | to access the individual values. The dynamic relocation index |
||
1075 | identifies the first entry in the .rel.dyn section that |
||
1076 | references the dynamic symbol corresponding to this msym entry. |
||
1077 | If the index is 0, no dynamic relocations are associated with the |
||
1078 | symbol. The symbol flags field is reserved for future use. */ |
||
1079 | unsigned long ms_info; |
||
1080 | } Elf32_Internal_Msym; |
||
1081 | |||
1082 | #define ELF32_MS_REL_INDEX(i) ((i) >> 8) |
||
1083 | #define ELF32_MS_FLAGS(i) (i) & 0xff) |
||
1084 | #define ELF32_MS_INFO(r, f) (((r) << 8) + ((f) & 0xff)) |
||
1085 | |||
1086 | /* MIPS ELF reginfo swapping routines. */ |
||
1087 | extern void bfd_mips_elf64_swap_reginfo_in |
||
1088 | (bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *); |
||
1089 | extern void bfd_mips_elf64_swap_reginfo_out |
||
1090 | (bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *); |
||
1091 | |||
1092 | /* Masks for the info work of an ODK_EXCEPTIONS descriptor. */ |
||
1093 | #define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */ |
||
1094 | #define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */ |
||
1095 | #define OEX_PAGE0 0x10000 /* Page zero must be mapped. */ |
||
1096 | #define OEX_SMM 0x20000 /* Force sequential memory mode. */ |
||
1097 | #define OEX_FPDBUG 0x40000 /* Force precise floating-point |
||
1098 | exceptions (debug mode). */ |
||
1099 | #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */ |
||
1100 | |||
1101 | /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */ |
||
1102 | #define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */ |
||
1103 | #define OEX_FPU_DIV0 0x08 /* Division by zero exception. */ |
||
1104 | #define OEX_FPU_OFLO 0x04 /* Overflow exception. */ |
||
1105 | #define OEX_FPU_UFLO 0x02 /* Underflow exception. */ |
||
1106 | #define OEX_FPU_INEX 0x01 /* Inexact exception. */ |
||
1107 | |||
1108 | /* Masks for the info word of an ODK_PAD descriptor. */ |
||
1109 | #define OPAD_PREFIX 0x01 |
||
1110 | #define OPAD_POSTFIX 0x02 |
||
1111 | #define OPAD_SYMBOL 0x04 |
||
1112 | |||
1113 | /* Masks for the info word of an ODK_HWPATCH descriptor. */ |
||
1114 | #define OHW_R4KEOP 0x00000001 /* R4000 end-of-page patch. */ |
||
1115 | #define OHW_R8KPFETCH 0x00000002 /* May need R8000 prefetch patch. */ |
||
1116 | #define OHW_R5KEOP 0x00000004 /* R5000 end-of-page patch. */ |
||
1117 | #define OHW_R5KCVTL 0x00000008 /* R5000 cvt.[ds].l bug |
||
1118 | (clean == 1). */ |
||
1119 | #define OHW_R10KLDL 0x00000010 /* Needs R10K misaligned |
||
1120 | load patch. */ |
||
1121 | |||
1122 | /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */ |
||
1123 | #define OGP_GROUP 0x0000ffff /* GP group number. */ |
||
1124 | #define OGP_SELF 0xffff0000 /* Self-contained GP groups. */ |
||
1125 | |||
1126 | /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */ |
||
1127 | #define OHWA0_R4KEOP_CHECKED 0x00000001 |
||
1128 | #define OHWA0_R4KEOP_CLEAN 0x00000002 |
||
1129 | |||
1130 | |||
1131 | /* Object attribute tags. */ |
||
1132 | enum |
||
1133 | { |
||
1134 | /* 0-3 are generic. */ |
||
1135 | |||
1136 | /* Floating-point ABI used by this object file. */ |
||
1137 | Tag_GNU_MIPS_ABI_FP = 4, |
||
1138 | }; |
||
1139 | |||
1140 | /* Object attribute values. */ |
||
1141 | enum |
||
1142 | { |
||
1143 | /* Values defined for Tag_GNU_MIPS_ABI_FP. */ |
||
1144 | |||
1145 | /* Not tagged or not using any ABIs affected by the differences. */ |
||
1146 | Val_GNU_MIPS_ABI_FP_ANY = 0, |
||
1147 | |||
1148 | /* Using hard-float -mdouble-float. */ |
||
1149 | Val_GNU_MIPS_ABI_FP_DOUBLE = 1, |
||
1150 | |||
1151 | /* Using hard-float -msingle-float. */ |
||
1152 | Val_GNU_MIPS_ABI_FP_SINGLE = 2, |
||
1153 | |||
1154 | /* Using soft-float. */ |
||
1155 | Val_GNU_MIPS_ABI_FP_SOFT = 3, |
||
1156 | |||
1157 | /* Using -mips32r2 -mfp64. */ |
||
1158 | Val_GNU_MIPS_ABI_FP_64 = 4, |
||
1159 | }; |
||
1160 | |||
1161 | #endif /* _ELF_MIPS_H */><>><>><>><> |