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Rev | Author | Line No. | Line |
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5191 | serge | 1 | /* PPC ELF support for BFD. |
6324 | serge | 2 | Copyright (C) 1995-2015 Free Software Foundation, Inc. |
5191 | serge | 3 | |
4 | By Michael Meissner, Cygnus Support, |
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5 | from information in the System V Application Binary Interface, |
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6 | PowerPC Processor Supplement and the PowerPC Embedded Application |
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7 | Binary Interface (eabi). |
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8 | |||
9 | This file is part of BFD, the Binary File Descriptor library. |
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10 | |||
11 | This program is free software; you can redistribute it and/or modify |
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12 | it under the terms of the GNU General Public License as published by |
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13 | the Free Software Foundation; either version 3 of the License, or |
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14 | (at your option) any later version. |
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15 | |||
16 | This program is distributed in the hope that it will be useful, |
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17 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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19 | GNU General Public License for more details. |
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20 | |||
21 | You should have received a copy of the GNU General Public License |
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22 | along with this program; if not, write to the Free Software |
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23 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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24 | MA 02110-1301, USA. */ |
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25 | |||
26 | /* This file holds definitions specific to the PPC ELF ABI. Note |
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27 | that most of this is not actually implemented by BFD. */ |
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28 | |||
29 | #ifndef _ELF_PPC_H |
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30 | #define _ELF_PPC_H |
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31 | |||
32 | #include "elf/reloc-macros.h" |
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33 | |||
34 | /* Relocations. */ |
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35 | START_RELOC_NUMBERS (elf_ppc_reloc_type) |
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36 | RELOC_NUMBER (R_PPC_NONE, 0) |
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37 | RELOC_NUMBER (R_PPC_ADDR32, 1) |
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38 | RELOC_NUMBER (R_PPC_ADDR24, 2) |
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39 | RELOC_NUMBER (R_PPC_ADDR16, 3) |
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40 | RELOC_NUMBER (R_PPC_ADDR16_LO, 4) |
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41 | RELOC_NUMBER (R_PPC_ADDR16_HI, 5) |
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42 | RELOC_NUMBER (R_PPC_ADDR16_HA, 6) |
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43 | RELOC_NUMBER (R_PPC_ADDR14, 7) |
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44 | RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN, 8) |
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45 | RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN, 9) |
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46 | RELOC_NUMBER (R_PPC_REL24, 10) |
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47 | RELOC_NUMBER (R_PPC_REL14, 11) |
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48 | RELOC_NUMBER (R_PPC_REL14_BRTAKEN, 12) |
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49 | RELOC_NUMBER (R_PPC_REL14_BRNTAKEN, 13) |
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50 | RELOC_NUMBER (R_PPC_GOT16, 14) |
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51 | RELOC_NUMBER (R_PPC_GOT16_LO, 15) |
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52 | RELOC_NUMBER (R_PPC_GOT16_HI, 16) |
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53 | RELOC_NUMBER (R_PPC_GOT16_HA, 17) |
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54 | RELOC_NUMBER (R_PPC_PLTREL24, 18) |
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55 | RELOC_NUMBER (R_PPC_COPY, 19) |
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56 | RELOC_NUMBER (R_PPC_GLOB_DAT, 20) |
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57 | RELOC_NUMBER (R_PPC_JMP_SLOT, 21) |
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58 | RELOC_NUMBER (R_PPC_RELATIVE, 22) |
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59 | RELOC_NUMBER (R_PPC_LOCAL24PC, 23) |
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60 | RELOC_NUMBER (R_PPC_UADDR32, 24) |
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61 | RELOC_NUMBER (R_PPC_UADDR16, 25) |
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62 | RELOC_NUMBER (R_PPC_REL32, 26) |
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63 | RELOC_NUMBER (R_PPC_PLT32, 27) |
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64 | RELOC_NUMBER (R_PPC_PLTREL32, 28) |
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65 | RELOC_NUMBER (R_PPC_PLT16_LO, 29) |
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66 | RELOC_NUMBER (R_PPC_PLT16_HI, 30) |
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67 | RELOC_NUMBER (R_PPC_PLT16_HA, 31) |
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68 | RELOC_NUMBER (R_PPC_SDAREL16, 32) |
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69 | RELOC_NUMBER (R_PPC_SECTOFF, 33) |
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70 | RELOC_NUMBER (R_PPC_SECTOFF_LO, 34) |
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71 | RELOC_NUMBER (R_PPC_SECTOFF_HI, 35) |
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72 | RELOC_NUMBER (R_PPC_SECTOFF_HA, 36) |
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73 | RELOC_NUMBER (R_PPC_ADDR30, 37) |
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74 | |||
75 | #ifndef RELOC_MACROS_GEN_FUNC |
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76 | /* Fake relocations for branch stubs, only used internally by ld. */ |
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77 | RELOC_NUMBER (R_PPC_RELAX, 48) |
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78 | RELOC_NUMBER (R_PPC_RELAX_PLT, 49) |
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79 | RELOC_NUMBER (R_PPC_RELAX_PLTREL24, 50) |
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80 | #endif |
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81 | |||
82 | /* Relocs added to support TLS. */ |
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83 | RELOC_NUMBER (R_PPC_TLS, 67) |
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84 | RELOC_NUMBER (R_PPC_DTPMOD32, 68) |
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85 | RELOC_NUMBER (R_PPC_TPREL16, 69) |
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86 | RELOC_NUMBER (R_PPC_TPREL16_LO, 70) |
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87 | RELOC_NUMBER (R_PPC_TPREL16_HI, 71) |
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88 | RELOC_NUMBER (R_PPC_TPREL16_HA, 72) |
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89 | RELOC_NUMBER (R_PPC_TPREL32, 73) |
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90 | RELOC_NUMBER (R_PPC_DTPREL16, 74) |
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91 | RELOC_NUMBER (R_PPC_DTPREL16_LO, 75) |
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92 | RELOC_NUMBER (R_PPC_DTPREL16_HI, 76) |
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93 | RELOC_NUMBER (R_PPC_DTPREL16_HA, 77) |
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94 | RELOC_NUMBER (R_PPC_DTPREL32, 78) |
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95 | RELOC_NUMBER (R_PPC_GOT_TLSGD16, 79) |
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96 | RELOC_NUMBER (R_PPC_GOT_TLSGD16_LO, 80) |
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97 | RELOC_NUMBER (R_PPC_GOT_TLSGD16_HI, 81) |
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98 | RELOC_NUMBER (R_PPC_GOT_TLSGD16_HA, 82) |
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99 | RELOC_NUMBER (R_PPC_GOT_TLSLD16, 83) |
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100 | RELOC_NUMBER (R_PPC_GOT_TLSLD16_LO, 84) |
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101 | RELOC_NUMBER (R_PPC_GOT_TLSLD16_HI, 85) |
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102 | RELOC_NUMBER (R_PPC_GOT_TLSLD16_HA, 86) |
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103 | RELOC_NUMBER (R_PPC_GOT_TPREL16, 87) |
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104 | RELOC_NUMBER (R_PPC_GOT_TPREL16_LO, 88) |
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105 | RELOC_NUMBER (R_PPC_GOT_TPREL16_HI, 89) |
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106 | RELOC_NUMBER (R_PPC_GOT_TPREL16_HA, 90) |
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107 | RELOC_NUMBER (R_PPC_GOT_DTPREL16, 91) |
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108 | RELOC_NUMBER (R_PPC_GOT_DTPREL16_LO, 92) |
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109 | RELOC_NUMBER (R_PPC_GOT_DTPREL16_HI, 93) |
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110 | RELOC_NUMBER (R_PPC_GOT_DTPREL16_HA, 94) |
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111 | RELOC_NUMBER (R_PPC_TLSGD, 95) |
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112 | RELOC_NUMBER (R_PPC_TLSLD, 96) |
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113 | |||
114 | /* The remaining relocs are from the Embedded ELF ABI, and are not |
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115 | in the SVR4 ELF ABI. */ |
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116 | RELOC_NUMBER (R_PPC_EMB_NADDR32, 101) |
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117 | RELOC_NUMBER (R_PPC_EMB_NADDR16, 102) |
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118 | RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103) |
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119 | RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104) |
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120 | RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105) |
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121 | RELOC_NUMBER (R_PPC_EMB_SDAI16, 106) |
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122 | RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107) |
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123 | RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108) |
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124 | RELOC_NUMBER (R_PPC_EMB_SDA21, 109) |
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125 | RELOC_NUMBER (R_PPC_EMB_MRKREF, 110) |
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126 | RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111) |
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127 | RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112) |
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128 | RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113) |
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129 | RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114) |
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130 | RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115) |
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131 | RELOC_NUMBER (R_PPC_EMB_RELSDA, 116) |
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132 | |||
133 | /* PowerPC VLE relocations. */ |
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134 | RELOC_NUMBER (R_PPC_VLE_REL8, 216) |
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135 | RELOC_NUMBER (R_PPC_VLE_REL15, 217) |
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136 | RELOC_NUMBER (R_PPC_VLE_REL24, 218) |
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137 | RELOC_NUMBER (R_PPC_VLE_LO16A, 219) |
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138 | RELOC_NUMBER (R_PPC_VLE_LO16D, 220) |
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139 | RELOC_NUMBER (R_PPC_VLE_HI16A, 221) |
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140 | RELOC_NUMBER (R_PPC_VLE_HI16D, 222) |
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141 | RELOC_NUMBER (R_PPC_VLE_HA16A, 223) |
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142 | RELOC_NUMBER (R_PPC_VLE_HA16D, 224) |
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143 | RELOC_NUMBER (R_PPC_VLE_SDA21, 225) |
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144 | RELOC_NUMBER (R_PPC_VLE_SDA21_LO, 226) |
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145 | RELOC_NUMBER (R_PPC_VLE_SDAREL_LO16A, 227) |
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146 | RELOC_NUMBER (R_PPC_VLE_SDAREL_LO16D, 228) |
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147 | RELOC_NUMBER (R_PPC_VLE_SDAREL_HI16A, 229) |
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148 | RELOC_NUMBER (R_PPC_VLE_SDAREL_HI16D, 230) |
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149 | RELOC_NUMBER (R_PPC_VLE_SDAREL_HA16A, 231) |
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150 | RELOC_NUMBER (R_PPC_VLE_SDAREL_HA16D, 232) |
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151 | |||
6324 | serge | 152 | /* Power9 split rel16 for addpcis. */ |
153 | RELOC_NUMBER (R_PPC_REL16DX_HA, 246) |
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154 | |||
5191 | serge | 155 | /* Support STT_GNU_IFUNC plt calls. */ |
156 | RELOC_NUMBER (R_PPC_IRELATIVE, 248) |
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157 | |||
158 | /* These are GNU extensions used in PIC code sequences. */ |
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159 | RELOC_NUMBER (R_PPC_REL16, 249) |
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160 | RELOC_NUMBER (R_PPC_REL16_LO, 250) |
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161 | RELOC_NUMBER (R_PPC_REL16_HI, 251) |
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162 | RELOC_NUMBER (R_PPC_REL16_HA, 252) |
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163 | |||
164 | /* These are GNU extensions to enable C++ vtable garbage collection. */ |
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165 | RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253) |
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166 | RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254) |
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167 | |||
168 | /* This is a phony reloc to handle any old fashioned TOC16 references |
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169 | that may still be in object files. */ |
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170 | RELOC_NUMBER (R_PPC_TOC16, 255) |
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171 | |||
172 | END_RELOC_NUMBERS (R_PPC_max) |
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173 | |||
174 | #define IS_PPC_TLS_RELOC(R) \ |
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175 | ((R) >= R_PPC_TLS && (R) <= R_PPC_GOT_DTPREL16_HA) |
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176 | |||
177 | /* Specify the value of _GLOBAL_OFFSET_TABLE_. */ |
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178 | #define DT_PPC_GOT (DT_LOPROC) |
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179 | |||
180 | /* Specify that tls descriptors should be optimized. */ |
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181 | #define DT_PPC_OPT (DT_LOPROC + 1) |
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182 | #define PPC_OPT_TLS 1 |
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183 | |||
184 | /* Processor specific flags for the ELF header e_flags field. */ |
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185 | |||
186 | #define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */ |
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187 | |||
188 | #define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */ |
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189 | #define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */ |
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190 | |||
191 | /* Processor specific program headers, p_flags field. */ |
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192 | #define PF_PPC_VLE 0x10000000 /* PowerPC VLE. */ |
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193 | |||
194 | /* Processor specific section headers, sh_flags field. */ |
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195 | #define SHF_PPC_VLE 0x10000000 /* PowerPC VLE text section. */ |
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196 | |||
197 | /* Processor specific section headers, sh_type field. */ |
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198 | |||
199 | #define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \ |
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200 | entries in this section \ |
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201 | based on the address \ |
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202 | specified in the associated \ |
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203 | symbol table entry. */ |
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204 | |||
205 | /* Object attribute tags. */ |
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206 | enum |
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207 | { |
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208 | /* 0-3 are generic. */ |
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209 | Tag_GNU_Power_ABI_FP = 4, /* Value 1 for hard-float, 2 for |
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210 | soft-float, 3 for single=precision |
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211 | hard-float; 0 for not tagged or not |
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212 | using any ABIs affected by the |
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213 | differences. */ |
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214 | |||
215 | /* Value 1 for general purpose registers only, 2 for AltiVec |
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216 | registers, 3 for SPE registers; 0 for not tagged or not using any |
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217 | ABIs affected by the differences. */ |
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218 | Tag_GNU_Power_ABI_Vector = 8, |
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219 | |||
220 | /* Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes, |
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221 | 2 for ABIs using memory; 0 for not tagged or not using any ABIs |
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222 | affected by the differences. */ |
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223 | Tag_GNU_Power_ABI_Struct_Return = 12 |
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224 | }; |
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225 | |||
226 | #endif /* _ELF_PPC_H */=>=> |