[444] | 1 | /* MIPS ELF support for BFD. |
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| 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 | |
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| 6 | By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from |
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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 | |
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| 10 | This file is part of BFD, the Binary File Descriptor library. |
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| 11 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 30 | #ifndef _ELF_MIPS_H |
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| 31 | #define _ELF_MIPS_H |
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| 32 | |
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| 33 | #include "elf/reloc-macros.h" |
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| 34 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 166 | /* Processor specific flags for the ELF header e_flags field. */ |
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| 167 | |
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| 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 | |
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| 171 | /* File contains position independent code. */ |
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| 172 | #define EF_MIPS_PIC 0x00000002 |
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| 173 | |
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| 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 | |
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| 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 | |
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| 181 | /* Code in file uses UCODE (obsolete) */ |
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| 182 | #define EF_MIPS_UCODE 0x00000010 |
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| 183 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 200 | /* Architectural Extensions used by this file */ |
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| 201 | #define EF_MIPS_ARCH_ASE 0x0f000000 |
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| 202 | |
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| 203 | /* Use MDMX multimedia extensions */ |
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| 204 | #define EF_MIPS_ARCH_ASE_MDMX 0x08000000 |
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| 205 | |
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| 206 | /* Use MIPS-16 ISA extensions */ |
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| 207 | #define EF_MIPS_ARCH_ASE_M16 0x04000000 |
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| 208 | |
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| 209 | /* Use MICROMIPS ISA extensions. */ |
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| 210 | #define EF_MIPS_ARCH_ASE_MICROMIPS 0x02000000 |
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| 211 | |
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| 212 | /* Four bit MIPS architecture field. */ |
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| 213 | #define EF_MIPS_ARCH 0xf0000000 |
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| 214 | |
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| 215 | /* -mips1 code. */ |
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| 216 | #define E_MIPS_ARCH_1 0x00000000 |
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| 217 | |
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| 218 | /* -mips2 code. */ |
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| 219 | #define E_MIPS_ARCH_2 0x10000000 |
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| 220 | |
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| 221 | /* -mips3 code. */ |
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| 222 | #define E_MIPS_ARCH_3 0x20000000 |
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| 223 | |
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| 224 | /* -mips4 code. */ |
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| 225 | #define E_MIPS_ARCH_4 0x30000000 |
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| 226 | |
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| 227 | /* -mips5 code. */ |
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| 228 | #define E_MIPS_ARCH_5 0x40000000 |
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| 229 | |
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| 230 | /* -mips32 code. */ |
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| 231 | #define E_MIPS_ARCH_32 0x50000000 |
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| 232 | |
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| 233 | /* -mips64 code. */ |
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| 234 | #define E_MIPS_ARCH_64 0x60000000 |
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| 235 | |
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| 236 | /* -mips32r2 code. */ |
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| 237 | #define E_MIPS_ARCH_32R2 0x70000000 |
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| 238 | |
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| 239 | /* -mips64r2 code. */ |
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| 240 | #define E_MIPS_ARCH_64R2 0x80000000 |
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| 241 | |
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| 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 | |
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| 245 | /* The original o32 abi. */ |
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| 246 | #define E_MIPS_ABI_O32 0x00001000 |
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| 247 | |
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| 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 | |
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| 251 | /* EABI in 32 bit mode */ |
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| 252 | #define E_MIPS_ABI_EABI32 0x00003000 |
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| 253 | |
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| 254 | /* EABI in 64 bit mode */ |
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| 255 | #define E_MIPS_ABI_EABI64 0x00004000 |
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| 256 | |
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| 257 | |
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| 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 | |
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| 262 | #define EF_MIPS_MACH 0x00FF0000 |
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| 263 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 302 | /* Small common symbol. */ |
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| 303 | #define SHN_MIPS_SCOMMON (SHN_LORESERVE + 3) |
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| 304 | |
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| 305 | /* Small undefined symbol. */ |
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| 306 | #define SHN_MIPS_SUNDEFINED (SHN_LORESERVE + 4) |
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| 307 | |
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| 308 | /* Processor specific section types. */ |
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| 309 | |
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| 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 | |
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| 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 | |
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| 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 | |
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| 321 | /* Section contains the global pointer table. */ |
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| 322 | #define SHT_MIPS_GPTAB 0x70000003 |
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| 323 | |
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| 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 | |
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| 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 | |
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| 332 | /* Section contains register usage information. */ |
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| 333 | #define SHT_MIPS_REGINFO 0x70000006 |
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| 334 | |
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| 335 | /* ??? */ |
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| 336 | #define SHT_MIPS_PACKAGE 0x70000007 |
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| 337 | |
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| 338 | /* ??? */ |
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| 339 | #define SHT_MIPS_PACKSYM 0x70000008 |
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| 340 | |
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| 341 | /* ??? */ |
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| 342 | #define SHT_MIPS_RELD 0x70000009 |
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| 343 | |
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| 344 | /* Section contains interface information. */ |
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| 345 | #define SHT_MIPS_IFACE 0x7000000b |
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| 346 | |
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| 347 | /* Section contains description of contents of another section. */ |
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| 348 | #define SHT_MIPS_CONTENT 0x7000000c |
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| 349 | |
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| 350 | /* Section contains miscellaneous options. */ |
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| 351 | #define SHT_MIPS_OPTIONS 0x7000000d |
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| 352 | |
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| 353 | /* ??? */ |
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| 354 | #define SHT_MIPS_SHDR 0x70000010 |
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| 355 | |
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| 356 | /* ??? */ |
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| 357 | #define SHT_MIPS_FDESC 0x70000011 |
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| 358 | |
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| 359 | /* ??? */ |
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| 360 | #define SHT_MIPS_EXTSYM 0x70000012 |
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| 361 | |
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| 362 | /* ??? */ |
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| 363 | #define SHT_MIPS_DENSE 0x70000013 |
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| 364 | |
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| 365 | /* ??? */ |
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| 366 | #define SHT_MIPS_PDESC 0x70000014 |
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| 367 | |
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| 368 | /* ??? */ |
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| 369 | #define SHT_MIPS_LOCSYM 0x70000015 |
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| 370 | |
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| 371 | /* ??? */ |
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| 372 | #define SHT_MIPS_AUXSYM 0x70000016 |
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| 373 | |
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| 374 | /* ??? */ |
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| 375 | #define SHT_MIPS_OPTSYM 0x70000017 |
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| 376 | |
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| 377 | /* ??? */ |
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| 378 | #define SHT_MIPS_LOCSTR 0x70000018 |
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| 379 | |
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| 380 | /* ??? */ |
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| 381 | #define SHT_MIPS_LINE 0x70000019 |
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| 382 | |
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| 383 | /* ??? */ |
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| 384 | #define SHT_MIPS_RFDESC 0x7000001a |
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| 385 | |
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| 386 | /* Delta C++: symbol table */ |
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| 387 | #define SHT_MIPS_DELTASYM 0x7000001b |
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| 388 | |
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| 389 | /* Delta C++: instance table */ |
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| 390 | #define SHT_MIPS_DELTAINST 0x7000001c |
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| 391 | |
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| 392 | /* Delta C++: class table */ |
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| 393 | #define SHT_MIPS_DELTACLASS 0x7000001d |
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| 394 | |
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| 395 | /* DWARF debugging section. */ |
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| 396 | #define SHT_MIPS_DWARF 0x7000001e |
---|
| 397 | |
---|
| 398 | /* Delta C++: declarations */ |
---|
| 399 | #define SHT_MIPS_DELTADECL 0x7000001f |
---|
| 400 | |
---|
| 401 | /* List of libraries the binary depends on. Includes a time stamp, version |
---|
| 402 | number. */ |
---|
| 403 | #define SHT_MIPS_SYMBOL_LIB 0x70000020 |
---|
| 404 | |
---|
| 405 | /* Events section. */ |
---|
| 406 | #define SHT_MIPS_EVENTS 0x70000021 |
---|
| 407 | |
---|
| 408 | /* ??? */ |
---|
| 409 | #define SHT_MIPS_TRANSLATE 0x70000022 |
---|
| 410 | |
---|
| 411 | /* Special pixie sections */ |
---|
| 412 | #define SHT_MIPS_PIXIE 0x70000023 |
---|
| 413 | |
---|
| 414 | /* Address translation table (for debug info) */ |
---|
| 415 | #define SHT_MIPS_XLATE 0x70000024 |
---|
| 416 | |
---|
| 417 | /* SGI internal address translation table (for debug info) */ |
---|
| 418 | #define SHT_MIPS_XLATE_DEBUG 0x70000025 |
---|
| 419 | |
---|
| 420 | /* Intermediate code */ |
---|
| 421 | #define SHT_MIPS_WHIRL 0x70000026 |
---|
| 422 | |
---|
| 423 | /* C++ exception handling region info */ |
---|
| 424 | #define SHT_MIPS_EH_REGION 0x70000027 |
---|
| 425 | |
---|
| 426 | /* Obsolete address translation table (for debug info) */ |
---|
| 427 | #define SHT_MIPS_XLATE_OLD 0x70000028 |
---|
| 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 | /* MSA ABI used by this object file. */ |
---|
| 1140 | Tag_GNU_MIPS_ABI_MSA = 8, |
---|
| 1141 | }; |
---|
| 1142 | |
---|
| 1143 | /* Object attribute values. */ |
---|
| 1144 | enum |
---|
| 1145 | { |
---|
| 1146 | /* Values defined for Tag_GNU_MIPS_ABI_FP. */ |
---|
| 1147 | |
---|
| 1148 | /* Not tagged or not using any ABIs affected by the differences. */ |
---|
| 1149 | Val_GNU_MIPS_ABI_FP_ANY = 0, |
---|
| 1150 | |
---|
| 1151 | /* Using hard-float -mdouble-float. */ |
---|
| 1152 | Val_GNU_MIPS_ABI_FP_DOUBLE = 1, |
---|
| 1153 | |
---|
| 1154 | /* Using hard-float -msingle-float. */ |
---|
| 1155 | Val_GNU_MIPS_ABI_FP_SINGLE = 2, |
---|
| 1156 | |
---|
| 1157 | /* Using soft-float. */ |
---|
| 1158 | Val_GNU_MIPS_ABI_FP_SOFT = 3, |
---|
| 1159 | |
---|
| 1160 | /* Using -mips32r2 -mfp64. */ |
---|
| 1161 | Val_GNU_MIPS_ABI_FP_64 = 4, |
---|
| 1162 | |
---|
| 1163 | /* Values defined for Tag_GNU_MIPS_ABI_MSA. */ |
---|
| 1164 | |
---|
| 1165 | /* Not tagged or not using any ABIs affected by the differences. */ |
---|
| 1166 | Val_GNU_MIPS_ABI_MSA_ANY = 0, |
---|
| 1167 | |
---|
| 1168 | /* Using 128-bit MSA. */ |
---|
| 1169 | Val_GNU_MIPS_ABI_MSA_128 = 1, |
---|
| 1170 | }; |
---|
| 1171 | |
---|
| 1172 | #endif /* _ELF_MIPS_H */ |
---|