| 1 | /* PPC ELF support for BFD. |
| 2 | Copyright 1995, 1996, 1998, 2000, 2001, 2002, 2003 |
| 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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. This will keep them |
| 124 | together. */ |
| 125 | #define R_PPC_RELAX32 249 |
| 126 | #define R_PPC_RELAX32PC 250 |
| 127 | #define R_PPC_RELAX32_PLT 251 |
| 128 | #define R_PPC_RELAX32PC_PLT 252 |
| 129 | |
| 130 | /* These are GNU extensions to enable C++ vtable garbage collection. */ |
| 131 | RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253) |
| 132 | RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254) |
| 133 | |
| 134 | /* This is a phony reloc to handle any old fashioned TOC16 references |
| 135 | that may still be in object files. */ |
| 136 | RELOC_NUMBER (R_PPC_TOC16, 255) |
| 137 | |
| 138 | END_RELOC_NUMBERS (R_PPC_max) |
| 139 | |
| 140 | #define IS_PPC_TLS_RELOC(R) \ |
| 141 | ((R) >= R_PPC_TLS && (R) <= R_PPC_GOT_DTPREL16_HA) |
| 142 | |
| 143 | /* Processor specific flags for the ELF header e_flags field. */ |
| 144 | |
| 145 | #define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */ |
| 146 | |
| 147 | #define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */ |
| 148 | #define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */ |
| 149 | |
| 150 | /* Processor specific section headers, sh_type field. */ |
| 151 | |
| 152 | #define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \ |
| 153 | entries in this section \ |
| 154 | based on the address \ |
| 155 | specified in the associated \ |
| 156 | symbol table entry. */ |
| 157 | |
| 158 | /* Processor specific section flags, sh_flags field. */ |
| 159 | |
| 160 | #define SHF_EXCLUDE 0x80000000 /* Link editor is to exclude \ |
| 161 | this section from executable \ |
| 162 | and shared objects that it \ |
| 163 | builds when those objects \ |
| 164 | are not to be furhter \ |
| 165 | relocated. */ |
| 166 | #endif /* _ELF_PPC_H */ |