1 /* PPC ELF support for BFD. 2 Copyright 1995, 1996, 1998, 2000, 2001, 2002, 2003, 2005 3 Free Software Foundation, Inc. 4 5 By Michael Meissner, Cygnus Support, <meissner@cygnus.com>, from information 6 in the System V Application Binary Interface, PowerPC Processor Supplement 7 and the PowerPC Embedded Application Binary Interface (eabi). 8 9 This file is part of BFD, the Binary File Descriptor library. 10 11 This program is free software; you can redistribute it and/or modify 12 it under the terms of the GNU General Public License as published by 13 the Free Software Foundation; either version 2 of the License, or 14 (at your option) any later version. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 You should have received a copy of the GNU General Public License 22 along with this program; if not, write to the Free Software 23 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 24 25 /* This file holds definitions specific to the PPC ELF ABI. Note 26 that most of this is not actually implemented by BFD. */ 27 28 #ifndef _ELF_PPC_H 29 #define _ELF_PPC_H 30 31 #include "elf/reloc-macros.h" 32 33 /* Relocations. */ 34 START_RELOC_NUMBERS (elf_ppc_reloc_type) 35 RELOC_NUMBER (R_PPC_NONE, 0) 36 RELOC_NUMBER (R_PPC_ADDR32, 1) 37 RELOC_NUMBER (R_PPC_ADDR24, 2) 38 RELOC_NUMBER (R_PPC_ADDR16, 3) 39 RELOC_NUMBER (R_PPC_ADDR16_LO, 4) 40 RELOC_NUMBER (R_PPC_ADDR16_HI, 5) 41 RELOC_NUMBER (R_PPC_ADDR16_HA, 6) 42 RELOC_NUMBER (R_PPC_ADDR14, 7) 43 RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN, 8) 44 RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN, 9) 45 RELOC_NUMBER (R_PPC_REL24, 10) 46 RELOC_NUMBER (R_PPC_REL14, 11) 47 RELOC_NUMBER (R_PPC_REL14_BRTAKEN, 12) 48 RELOC_NUMBER (R_PPC_REL14_BRNTAKEN, 13) 49 RELOC_NUMBER (R_PPC_GOT16, 14) 50 RELOC_NUMBER (R_PPC_GOT16_LO, 15) 51 RELOC_NUMBER (R_PPC_GOT16_HI, 16) 52 RELOC_NUMBER (R_PPC_GOT16_HA, 17) 53 RELOC_NUMBER (R_PPC_PLTREL24, 18) 54 RELOC_NUMBER (R_PPC_COPY, 19) 55 RELOC_NUMBER (R_PPC_GLOB_DAT, 20) 56 RELOC_NUMBER (R_PPC_JMP_SLOT, 21) 57 RELOC_NUMBER (R_PPC_RELATIVE, 22) 58 RELOC_NUMBER (R_PPC_LOCAL24PC, 23) 59 RELOC_NUMBER (R_PPC_UADDR32, 24) 60 RELOC_NUMBER (R_PPC_UADDR16, 25) 61 RELOC_NUMBER (R_PPC_REL32, 26) 62 RELOC_NUMBER (R_PPC_PLT32, 27) 63 RELOC_NUMBER (R_PPC_PLTREL32, 28) 64 RELOC_NUMBER (R_PPC_PLT16_LO, 29) 65 RELOC_NUMBER (R_PPC_PLT16_HI, 30) 66 RELOC_NUMBER (R_PPC_PLT16_HA, 31) 67 RELOC_NUMBER (R_PPC_SDAREL16, 32) 68 RELOC_NUMBER (R_PPC_SECTOFF, 33) 69 RELOC_NUMBER (R_PPC_SECTOFF_LO, 34) 70 RELOC_NUMBER (R_PPC_SECTOFF_HI, 35) 71 RELOC_NUMBER (R_PPC_SECTOFF_HA, 36) 72 RELOC_NUMBER (R_PPC_ADDR30, 37) 73 74 /* Relocs added to support TLS. */ 75 RELOC_NUMBER (R_PPC_TLS, 67) 76 RELOC_NUMBER (R_PPC_DTPMOD32, 68) 77 RELOC_NUMBER (R_PPC_TPREL16, 69) 78 RELOC_NUMBER (R_PPC_TPREL16_LO, 70) 79 RELOC_NUMBER (R_PPC_TPREL16_HI, 71) 80 RELOC_NUMBER (R_PPC_TPREL16_HA, 72) 81 RELOC_NUMBER (R_PPC_TPREL32, 73) 82 RELOC_NUMBER (R_PPC_DTPREL16, 74) 83 RELOC_NUMBER (R_PPC_DTPREL16_LO, 75) 84 RELOC_NUMBER (R_PPC_DTPREL16_HI, 76) 85 RELOC_NUMBER (R_PPC_DTPREL16_HA, 77) 86 RELOC_NUMBER (R_PPC_DTPREL32, 78) 87 RELOC_NUMBER (R_PPC_GOT_TLSGD16, 79) 88 RELOC_NUMBER (R_PPC_GOT_TLSGD16_LO, 80) 89 RELOC_NUMBER (R_PPC_GOT_TLSGD16_HI, 81) 90 RELOC_NUMBER (R_PPC_GOT_TLSGD16_HA, 82) 91 RELOC_NUMBER (R_PPC_GOT_TLSLD16, 83) 92 RELOC_NUMBER (R_PPC_GOT_TLSLD16_LO, 84) 93 RELOC_NUMBER (R_PPC_GOT_TLSLD16_HI, 85) 94 RELOC_NUMBER (R_PPC_GOT_TLSLD16_HA, 86) 95 RELOC_NUMBER (R_PPC_GOT_TPREL16, 87) 96 RELOC_NUMBER (R_PPC_GOT_TPREL16_LO, 88) 97 RELOC_NUMBER (R_PPC_GOT_TPREL16_HI, 89) 98 RELOC_NUMBER (R_PPC_GOT_TPREL16_HA, 90) 99 RELOC_NUMBER (R_PPC_GOT_DTPREL16, 91) 100 RELOC_NUMBER (R_PPC_GOT_DTPREL16_LO, 92) 101 RELOC_NUMBER (R_PPC_GOT_DTPREL16_HI, 93) 102 RELOC_NUMBER (R_PPC_GOT_DTPREL16_HA, 94) 103 104 /* The remaining relocs are from the Embedded ELF ABI, and are not 105 in the SVR4 ELF ABI. */ 106 RELOC_NUMBER (R_PPC_EMB_NADDR32, 101) 107 RELOC_NUMBER (R_PPC_EMB_NADDR16, 102) 108 RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103) 109 RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104) 110 RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105) 111 RELOC_NUMBER (R_PPC_EMB_SDAI16, 106) 112 RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107) 113 RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108) 114 RELOC_NUMBER (R_PPC_EMB_SDA21, 109) 115 RELOC_NUMBER (R_PPC_EMB_MRKREF, 110) 116 RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111) 117 RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112) 118 RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113) 119 RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114) 120 RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115) 121 RELOC_NUMBER (R_PPC_EMB_RELSDA, 116) 122 123 /* Fake relocations for branch stubs, only used internally by ld. */ 124 #define R_PPC_RELAX32 245 125 #define R_PPC_RELAX32PC 246 126 #define R_PPC_RELAX32_PLT 247 127 #define R_PPC_RELAX32PC_PLT 248 128 129 /* These are GNU extensions used in PIC code sequences. */ 130 RELOC_NUMBER (R_PPC_REL16, 249) 131 RELOC_NUMBER (R_PPC_REL16_LO, 250) 132 RELOC_NUMBER (R_PPC_REL16_HI, 251) 133 RELOC_NUMBER (R_PPC_REL16_HA, 252) 134 135 /* These are GNU extensions to enable C++ vtable garbage collection. */ 136 RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253) 137 RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254) 138 139 /* This is a phony reloc to handle any old fashioned TOC16 references 140 that may still be in object files. */ 141 RELOC_NUMBER (R_PPC_TOC16, 255) 142 143 END_RELOC_NUMBERS (R_PPC_max) 144 145 #define IS_PPC_TLS_RELOC(R) \ 146 ((R) >= R_PPC_TLS && (R) <= R_PPC_GOT_DTPREL16_HA) 147 148 /* Specify the value of _GLOBAL_OFFSET_TABLE_. */ 149 #define DT_PPC_GOT DT_LOPROC 150 151 /* Processor specific flags for the ELF header e_flags field. */ 152 153 #define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */ 154 155 #define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */ 156 #define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */ 157 158 /* Processor specific section headers, sh_type field. */ 159 160 #define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \ 161 entries in this section \ 162 based on the address \ 163 specified in the associated \ 164 symbol table entry. */ 165 166 /* Processor specific section flags, sh_flags field. */ 167 168 #define SHF_EXCLUDE 0x80000000 /* Link editor is to exclude \ 169 this section from executable \ 170 and shared objects that it \ 171 builds when those objects \ 172 are not to be furhter \ 173 relocated. */ 174 #endif /* _ELF_PPC_H */ 175