1 /* PPC ELF support for BFD. 2 Copyright 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc. 3 4 By Michael Meissner, Cygnus Support, <[email protected]>, from information 5 in the System V Application Binary Interface, PowerPC Processor Supplement 6 and the PowerPC Embedded Application Binary Interface (eabi). 7 8 This file is part of BFD, the Binary File Descriptor library. 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 2 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 23 24 /* This file holds definitions specific to the PPC ELF ABI. Note 25 that most of this is not actually implemented by BFD. */ 26 27 #ifndef _ELF_PPC_H 28 #define _ELF_PPC_H 29 30 #include "elf/reloc-macros.h" 31 32 /* Relocations. */ 33 START_RELOC_NUMBERS (elf_ppc_reloc_type) 34 RELOC_NUMBER (R_PPC_NONE, 0) 35 RELOC_NUMBER (R_PPC_ADDR32, 1) 36 RELOC_NUMBER (R_PPC_ADDR24, 2) 37 RELOC_NUMBER (R_PPC_ADDR16, 3) 38 RELOC_NUMBER (R_PPC_ADDR16_LO, 4) 39 RELOC_NUMBER (R_PPC_ADDR16_HI, 5) 40 RELOC_NUMBER (R_PPC_ADDR16_HA, 6) 41 RELOC_NUMBER (R_PPC_ADDR14, 7) 42 RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN, 8) 43 RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN, 9) 44 RELOC_NUMBER (R_PPC_REL24, 10) 45 RELOC_NUMBER (R_PPC_REL14, 11) 46 RELOC_NUMBER (R_PPC_REL14_BRTAKEN, 12) 47 RELOC_NUMBER (R_PPC_REL14_BRNTAKEN, 13) 48 RELOC_NUMBER (R_PPC_GOT16, 14) 49 RELOC_NUMBER (R_PPC_GOT16_LO, 15) 50 RELOC_NUMBER (R_PPC_GOT16_HI, 16) 51 RELOC_NUMBER (R_PPC_GOT16_HA, 17) 52 RELOC_NUMBER (R_PPC_PLTREL24, 18) 53 RELOC_NUMBER (R_PPC_COPY, 19) 54 RELOC_NUMBER (R_PPC_GLOB_DAT, 20) 55 RELOC_NUMBER (R_PPC_JMP_SLOT, 21) 56 RELOC_NUMBER (R_PPC_RELATIVE, 22) 57 RELOC_NUMBER (R_PPC_LOCAL24PC, 23) 58 RELOC_NUMBER (R_PPC_UADDR32, 24) 59 RELOC_NUMBER (R_PPC_UADDR16, 25) 60 RELOC_NUMBER (R_PPC_REL32, 26) 61 RELOC_NUMBER (R_PPC_PLT32, 27) 62 RELOC_NUMBER (R_PPC_PLTREL32, 28) 63 RELOC_NUMBER (R_PPC_PLT16_LO, 29) 64 RELOC_NUMBER (R_PPC_PLT16_HI, 30) 65 RELOC_NUMBER (R_PPC_PLT16_HA, 31) 66 RELOC_NUMBER (R_PPC_SDAREL16, 32) 67 RELOC_NUMBER (R_PPC_SECTOFF, 33) 68 RELOC_NUMBER (R_PPC_SECTOFF_LO, 34) 69 RELOC_NUMBER (R_PPC_SECTOFF_HI, 35) 70 RELOC_NUMBER (R_PPC_SECTOFF_HA, 36) 71 RELOC_NUMBER (R_PPC_ADDR30, 37) 72 73 /* The following relocs are from the 64-bit PowerPC ELF ABI. */ 74 RELOC_NUMBER (R_PPC64_ADDR64, 38) 75 RELOC_NUMBER (R_PPC64_ADDR16_HIGHER, 39) 76 RELOC_NUMBER (R_PPC64_ADDR16_HIGHERA, 40) 77 RELOC_NUMBER (R_PPC64_ADDR16_HIGHEST, 41) 78 RELOC_NUMBER (R_PPC64_ADDR16_HIGHESTA, 42) 79 RELOC_NUMBER (R_PPC64_UADDR64, 43) 80 RELOC_NUMBER (R_PPC64_REL64, 44) 81 RELOC_NUMBER (R_PPC64_PLT64, 45) 82 RELOC_NUMBER (R_PPC64_PLTREL64, 46) 83 RELOC_NUMBER (R_PPC64_TOC16, 47) 84 RELOC_NUMBER (R_PPC64_TOC16_LO, 48) 85 RELOC_NUMBER (R_PPC64_TOC16_HI, 49) 86 RELOC_NUMBER (R_PPC64_TOC16_HA, 50) 87 RELOC_NUMBER (R_PPC64_TOC, 51) 88 RELOC_NUMBER (R_PPC64_PLTGOT16, 52) 89 RELOC_NUMBER (R_PPC64_PLTGOT16_LO, 53) 90 RELOC_NUMBER (R_PPC64_PLTGOT16_HI, 54) 91 RELOC_NUMBER (R_PPC64_PLTGOT16_HA, 55) 92 93 /* The following relocs were added in the 64-bit PowerPC ELF ABI revision 1.2. */ 94 RELOC_NUMBER (R_PPC64_ADDR16_DS, 56) 95 RELOC_NUMBER (R_PPC64_ADDR16_LO_DS, 57) 96 RELOC_NUMBER (R_PPC64_GOT16_DS, 58) 97 RELOC_NUMBER (R_PPC64_GOT16_LO_DS, 59) 98 RELOC_NUMBER (R_PPC64_PLT16_LO_DS, 60) 99 RELOC_NUMBER (R_PPC64_SECTOFF_DS, 61) 100 RELOC_NUMBER (R_PPC64_SECTOFF_LO_DS, 62) 101 RELOC_NUMBER (R_PPC64_TOC16_DS, 63) 102 RELOC_NUMBER (R_PPC64_TOC16_LO_DS, 64) 103 RELOC_NUMBER (R_PPC64_PLTGOT16_DS, 65) 104 RELOC_NUMBER (R_PPC64_PLTGOT16_LO_DS, 66) 105 106 /* The remaining relocs are from the Embedded ELF ABI, and are not 107 in the SVR4 ELF ABI. */ 108 RELOC_NUMBER (R_PPC_EMB_NADDR32, 101) 109 RELOC_NUMBER (R_PPC_EMB_NADDR16, 102) 110 RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103) 111 RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104) 112 RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105) 113 RELOC_NUMBER (R_PPC_EMB_SDAI16, 106) 114 RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107) 115 RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108) 116 RELOC_NUMBER (R_PPC_EMB_SDA21, 109) 117 RELOC_NUMBER (R_PPC_EMB_MRKREF, 110) 118 RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111) 119 RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112) 120 RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113) 121 RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114) 122 RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115) 123 RELOC_NUMBER (R_PPC_EMB_RELSDA, 116) 124 125 /* These are GNU extensions to enable C++ vtable garbage collection. */ 126 RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253) 127 RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254) 128 129 /* This is a phony reloc to handle any old fashioned TOC16 references 130 that may still be in object files. */ 131 RELOC_NUMBER (R_PPC_TOC16, 255) 132 133 END_RELOC_NUMBERS (R_PPC_max) 134 135 /* Aliases for R_PPC64-relocs. */ 136 #define R_PPC64_NONE R_PPC_NONE 137 #define R_PPC64_ADDR32 R_PPC_ADDR32 138 #define R_PPC64_ADDR24 R_PPC_ADDR24 139 #define R_PPC64_ADDR16 R_PPC_ADDR16 140 #define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO 141 #define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI 142 #define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA 143 #define R_PPC64_ADDR14 R_PPC_ADDR14 144 #define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN 145 #define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN 146 #define R_PPC64_REL24 R_PPC_REL24 147 #define R_PPC64_REL14 R_PPC_REL14 148 #define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN 149 #define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN 150 #define R_PPC64_GOT16 R_PPC_GOT16 151 #define R_PPC64_GOT16_LO R_PPC_GOT16_LO 152 #define R_PPC64_GOT16_HI R_PPC_GOT16_HI 153 #define R_PPC64_GOT16_HA R_PPC_GOT16_HA 154 #define R_PPC64_COPY R_PPC_COPY 155 #define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT 156 #define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT 157 #define R_PPC64_RELATIVE R_PPC_RELATIVE 158 #define R_PPC64_UADDR32 R_PPC_UADDR32 159 #define R_PPC64_UADDR16 R_PPC_UADDR16 160 #define R_PPC64_REL32 R_PPC_REL32 161 #define R_PPC64_PLT32 R_PPC_PLT32 162 #define R_PPC64_PLTREL32 R_PPC_PLTREL32 163 #define R_PPC64_PLT16_LO R_PPC_PLT16_LO 164 #define R_PPC64_PLT16_HI R_PPC_PLT16_HI 165 #define R_PPC64_PLT16_HA R_PPC_PLT16_HA 166 #define R_PPC64_SECTOFF R_PPC_SECTOFF 167 #define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO 168 #define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI 169 #define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA 170 #define R_PPC64_ADDR30 R_PPC_ADDR30 171 #define R_PPC64_GNU_VTINHERIT R_PPC_GNU_VTINHERIT 172 #define R_PPC64_GNU_VTENTRY R_PPC_GNU_VTENTRY 173 174 /* Specify the start of the .glink section. */ 175 #define DT_PPC64_GLINK DT_LOPROC 176 177 /* Specify the start and size of the .opd section. */ 178 #define DT_PPC64_OPD (DT_LOPROC + 1) 179 #define DT_PPC64_OPDSZ (DT_LOPROC + 2) 180 181 /* Processor specific flags for the ELF header e_flags field. */ 182 183 #define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */ 184 185 #define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */ 186 #define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */ 187 188 /* Processor specific section headers, sh_type field. */ 189 190 #define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \ 191 entries in this section \ 192 based on the address \ 193 specified in the associated \ 194 symbol table entry. */ 195 196 /* Processor specific section flags, sh_flags field. */ 197 198 #define SHF_EXCLUDE 0x80000000 /* Link editor is to exclude \ 199 this section from executable \ 200 and shared objects that it \ 201 builds when those objects \ 202 are not to be furhter \ 203 relocated. */ 204 #endif /* _ELF_PPC_H */ 205