projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 1df2fdb5 | 1 | /* PPC64 ELF support for BFD. |
| b90efa5b | 2 | Copyright (C) 2003-2015 Free Software Foundation, Inc. |
| 1df2fdb5 | 3 | |
| e4e42b45 | 4 | This file is part of BFD, the Binary File Descriptor library. |
| 1df2fdb5 | 5 | |
| e4e42b45 NC |
6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 3 of the License, or | |
| 9 | (at your option) any later version. | |
| 1df2fdb5 | 10 | |
| e4e42b45 NC |
11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 1df2fdb5 | 15 | |
| e4e42b45 NC |
16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software | |
| 18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
| 19 | MA 02110-1301, USA. */ | |
| 1df2fdb5 AM |
20 | |
| 21 | #ifndef _ELF_PPC64_H | |
| 22 | #define _ELF_PPC64_H | |
| 23 | ||
| 24 | #include "elf/reloc-macros.h" | |
| 25 | ||
| 26 | /* Relocations. */ | |
| 27 | START_RELOC_NUMBERS (elf_ppc64_reloc_type) | |
| 5255ffd3 AM |
28 | RELOC_NUMBER (R_PPC64_NONE, 0) |
| 29 | RELOC_NUMBER (R_PPC64_ADDR32, 1) | |
| 30 | RELOC_NUMBER (R_PPC64_ADDR24, 2) | |
| 31 | RELOC_NUMBER (R_PPC64_ADDR16, 3) | |
| 32 | RELOC_NUMBER (R_PPC64_ADDR16_LO, 4) | |
| 33 | RELOC_NUMBER (R_PPC64_ADDR16_HI, 5) | |
| 34 | RELOC_NUMBER (R_PPC64_ADDR16_HA, 6) | |
| 35 | RELOC_NUMBER (R_PPC64_ADDR14, 7) | |
| 36 | RELOC_NUMBER (R_PPC64_ADDR14_BRTAKEN, 8) | |
| 37 | RELOC_NUMBER (R_PPC64_ADDR14_BRNTAKEN, 9) | |
| 38 | RELOC_NUMBER (R_PPC64_REL24, 10) | |
| 39 | RELOC_NUMBER (R_PPC64_REL14, 11) | |
| 40 | RELOC_NUMBER (R_PPC64_REL14_BRTAKEN, 12) | |
| 41 | RELOC_NUMBER (R_PPC64_REL14_BRNTAKEN, 13) | |
| 42 | RELOC_NUMBER (R_PPC64_GOT16, 14) | |
| 43 | RELOC_NUMBER (R_PPC64_GOT16_LO, 15) | |
| 44 | RELOC_NUMBER (R_PPC64_GOT16_HI, 16) | |
| 45 | RELOC_NUMBER (R_PPC64_GOT16_HA, 17) | |
| 1df2fdb5 | 46 | /* 18 unused. 32-bit reloc is R_PPC_PLTREL24. */ |
| 5255ffd3 AM |
47 | RELOC_NUMBER (R_PPC64_COPY, 19) |
| 48 | RELOC_NUMBER (R_PPC64_GLOB_DAT, 20) | |
| 49 | RELOC_NUMBER (R_PPC64_JMP_SLOT, 21) | |
| 50 | RELOC_NUMBER (R_PPC64_RELATIVE, 22) | |
| 1df2fdb5 | 51 | /* 23 unused. 32-bit reloc is R_PPC_LOCAL24PC. */ |
| 5255ffd3 AM |
52 | RELOC_NUMBER (R_PPC64_UADDR32, 24) |
| 53 | RELOC_NUMBER (R_PPC64_UADDR16, 25) | |
| 54 | RELOC_NUMBER (R_PPC64_REL32, 26) | |
| 55 | RELOC_NUMBER (R_PPC64_PLT32, 27) | |
| 56 | RELOC_NUMBER (R_PPC64_PLTREL32, 28) | |
| 57 | RELOC_NUMBER (R_PPC64_PLT16_LO, 29) | |
| 58 | RELOC_NUMBER (R_PPC64_PLT16_HI, 30) | |
| 59 | RELOC_NUMBER (R_PPC64_PLT16_HA, 31) | |
| 1df2fdb5 | 60 | /* 32 unused. 32-bit reloc is R_PPC_SDAREL16. */ |
| 5255ffd3 AM |
61 | RELOC_NUMBER (R_PPC64_SECTOFF, 33) |
| 62 | RELOC_NUMBER (R_PPC64_SECTOFF_LO, 34) | |
| 63 | RELOC_NUMBER (R_PPC64_SECTOFF_HI, 35) | |
| 64 | RELOC_NUMBER (R_PPC64_SECTOFF_HA, 36) | |
| 65 | RELOC_NUMBER (R_PPC64_REL30, 37) | |
| 66 | RELOC_NUMBER (R_PPC64_ADDR64, 38) | |
| 67 | RELOC_NUMBER (R_PPC64_ADDR16_HIGHER, 39) | |
| 68 | RELOC_NUMBER (R_PPC64_ADDR16_HIGHERA, 40) | |
| 69 | RELOC_NUMBER (R_PPC64_ADDR16_HIGHEST, 41) | |
| 70 | RELOC_NUMBER (R_PPC64_ADDR16_HIGHESTA, 42) | |
| 71 | RELOC_NUMBER (R_PPC64_UADDR64, 43) | |
| 72 | RELOC_NUMBER (R_PPC64_REL64, 44) | |
| 73 | RELOC_NUMBER (R_PPC64_PLT64, 45) | |
| 74 | RELOC_NUMBER (R_PPC64_PLTREL64, 46) | |
| 75 | RELOC_NUMBER (R_PPC64_TOC16, 47) | |
| 76 | RELOC_NUMBER (R_PPC64_TOC16_LO, 48) | |
| 77 | RELOC_NUMBER (R_PPC64_TOC16_HI, 49) | |
| 78 | RELOC_NUMBER (R_PPC64_TOC16_HA, 50) | |
| 79 | RELOC_NUMBER (R_PPC64_TOC, 51) | |
| 80 | RELOC_NUMBER (R_PPC64_PLTGOT16, 52) | |
| 81 | RELOC_NUMBER (R_PPC64_PLTGOT16_LO, 53) | |
| 82 | RELOC_NUMBER (R_PPC64_PLTGOT16_HI, 54) | |
| 83 | RELOC_NUMBER (R_PPC64_PLTGOT16_HA, 55) | |
| 1df2fdb5 | 84 | |
| 5255ffd3 AM |
85 | /* The following relocs were added in the 64-bit PowerPC ELF ABI |
| 86 | revision 1.2. */ | |
| 87 | RELOC_NUMBER (R_PPC64_ADDR16_DS, 56) | |
| 88 | RELOC_NUMBER (R_PPC64_ADDR16_LO_DS, 57) | |
| 89 | RELOC_NUMBER (R_PPC64_GOT16_DS, 58) | |
| 90 | RELOC_NUMBER (R_PPC64_GOT16_LO_DS, 59) | |
| 91 | RELOC_NUMBER (R_PPC64_PLT16_LO_DS, 60) | |
| 92 | RELOC_NUMBER (R_PPC64_SECTOFF_DS, 61) | |
| 93 | RELOC_NUMBER (R_PPC64_SECTOFF_LO_DS, 62) | |
| 94 | RELOC_NUMBER (R_PPC64_TOC16_DS, 63) | |
| 95 | RELOC_NUMBER (R_PPC64_TOC16_LO_DS, 64) | |
| 96 | RELOC_NUMBER (R_PPC64_PLTGOT16_DS, 65) | |
| 97 | RELOC_NUMBER (R_PPC64_PLTGOT16_LO_DS, 66) | |
| 98 | ||
| 99 | /* Relocs added to support TLS. PowerPC64 ELF ABI revision 1.5. */ | |
| 100 | RELOC_NUMBER (R_PPC64_TLS, 67) | |
| 101 | RELOC_NUMBER (R_PPC64_DTPMOD64, 68) | |
| 102 | RELOC_NUMBER (R_PPC64_TPREL16, 69) | |
| 103 | RELOC_NUMBER (R_PPC64_TPREL16_LO, 70) | |
| 104 | RELOC_NUMBER (R_PPC64_TPREL16_HI, 71) | |
| 105 | RELOC_NUMBER (R_PPC64_TPREL16_HA, 72) | |
| 106 | RELOC_NUMBER (R_PPC64_TPREL64, 73) | |
| 107 | RELOC_NUMBER (R_PPC64_DTPREL16, 74) | |
| 108 | RELOC_NUMBER (R_PPC64_DTPREL16_LO, 75) | |
| 109 | RELOC_NUMBER (R_PPC64_DTPREL16_HI, 76) | |
| 110 | RELOC_NUMBER (R_PPC64_DTPREL16_HA, 77) | |
| 111 | RELOC_NUMBER (R_PPC64_DTPREL64, 78) | |
| 112 | RELOC_NUMBER (R_PPC64_GOT_TLSGD16, 79) | |
| 113 | RELOC_NUMBER (R_PPC64_GOT_TLSGD16_LO, 80) | |
| 114 | RELOC_NUMBER (R_PPC64_GOT_TLSGD16_HI, 81) | |
| 115 | RELOC_NUMBER (R_PPC64_GOT_TLSGD16_HA, 82) | |
| 116 | RELOC_NUMBER (R_PPC64_GOT_TLSLD16, 83) | |
| 117 | RELOC_NUMBER (R_PPC64_GOT_TLSLD16_LO, 84) | |
| 118 | RELOC_NUMBER (R_PPC64_GOT_TLSLD16_HI, 85) | |
| 119 | RELOC_NUMBER (R_PPC64_GOT_TLSLD16_HA, 86) | |
| 120 | RELOC_NUMBER (R_PPC64_GOT_TPREL16_DS, 87) | |
| 121 | RELOC_NUMBER (R_PPC64_GOT_TPREL16_LO_DS, 88) | |
| 122 | RELOC_NUMBER (R_PPC64_GOT_TPREL16_HI, 89) | |
| 123 | RELOC_NUMBER (R_PPC64_GOT_TPREL16_HA, 90) | |
| 124 | RELOC_NUMBER (R_PPC64_GOT_DTPREL16_DS, 91) | |
| 125 | RELOC_NUMBER (R_PPC64_GOT_DTPREL16_LO_DS, 92) | |
| 126 | RELOC_NUMBER (R_PPC64_GOT_DTPREL16_HI, 93) | |
| 127 | RELOC_NUMBER (R_PPC64_GOT_DTPREL16_HA, 94) | |
| 128 | RELOC_NUMBER (R_PPC64_TPREL16_DS, 95) | |
| 129 | RELOC_NUMBER (R_PPC64_TPREL16_LO_DS, 96) | |
| 130 | RELOC_NUMBER (R_PPC64_TPREL16_HIGHER, 97) | |
| 131 | RELOC_NUMBER (R_PPC64_TPREL16_HIGHERA, 98) | |
| 132 | RELOC_NUMBER (R_PPC64_TPREL16_HIGHEST, 99) | |
| 133 | RELOC_NUMBER (R_PPC64_TPREL16_HIGHESTA, 100) | |
| 134 | RELOC_NUMBER (R_PPC64_DTPREL16_DS, 101) | |
| 135 | RELOC_NUMBER (R_PPC64_DTPREL16_LO_DS, 102) | |
| 136 | RELOC_NUMBER (R_PPC64_DTPREL16_HIGHER, 103) | |
| 137 | RELOC_NUMBER (R_PPC64_DTPREL16_HIGHERA, 104) | |
| 138 | RELOC_NUMBER (R_PPC64_DTPREL16_HIGHEST, 105) | |
| 139 | RELOC_NUMBER (R_PPC64_DTPREL16_HIGHESTA, 106) | |
| 727fc41e AM |
140 | RELOC_NUMBER (R_PPC64_TLSGD, 107) |
| 141 | RELOC_NUMBER (R_PPC64_TLSLD, 108) | |
| 3b421ab3 | 142 | RELOC_NUMBER (R_PPC64_TOCSAVE, 109) |
| 1df2fdb5 | 143 | |
| f9c6b907 AM |
144 | /* Added when HA and HI relocs were changed to report overflows. */ |
| 145 | RELOC_NUMBER (R_PPC64_ADDR16_HIGH, 110) | |
| 146 | RELOC_NUMBER (R_PPC64_ADDR16_HIGHA, 111) | |
| 147 | RELOC_NUMBER (R_PPC64_TPREL16_HIGH, 112) | |
| 148 | RELOC_NUMBER (R_PPC64_TPREL16_HIGHA, 113) | |
| 149 | RELOC_NUMBER (R_PPC64_DTPREL16_HIGH, 114) | |
| 150 | RELOC_NUMBER (R_PPC64_DTPREL16_HIGHA, 115) | |
| 151 | ||
| 45965137 AM |
152 | /* Added for ELFv2. */ |
| 153 | RELOC_NUMBER (R_PPC64_REL24_NOTOC, 116) | |
| 154 | RELOC_NUMBER (R_PPC64_ADDR64_LOCAL, 117) | |
| 155 | ||
| ba761f19 AM |
156 | #ifndef RELOC_MACROS_GEN_FUNC |
| 157 | /* Fake relocation only used internally by ld. */ | |
| 158 | RELOC_NUMBER (R_PPC64_LO_DS_OPT, 128) | |
| 159 | #endif | |
| a680de9a PB |
160 | |
| 161 | /* Power9 split rel16 for addpcis. */ | |
| 162 | RELOC_NUMBER (R_PPC64_REL16DX_HA, 246) | |
| 163 | ||
| e054468f | 164 | /* Support STT_GNU_IFUNC plt calls. */ |
| 28ec585f | 165 | RELOC_NUMBER (R_PPC64_JMP_IREL, 247) |
| e054468f AM |
166 | RELOC_NUMBER (R_PPC64_IRELATIVE, 248) |
| 167 | ||
| 28ec585f AM |
168 | /* These are GNU extensions used in PIC code sequences. */ |
| 169 | RELOC_NUMBER (R_PPC64_REL16, 249) | |
| 170 | RELOC_NUMBER (R_PPC64_REL16_LO, 250) | |
| 171 | RELOC_NUMBER (R_PPC64_REL16_HI, 251) | |
| 172 | RELOC_NUMBER (R_PPC64_REL16_HA, 252) | |
| 173 | ||
| 1df2fdb5 | 174 | /* These are GNU extensions to enable C++ vtable garbage collection. */ |
| 5255ffd3 AM |
175 | RELOC_NUMBER (R_PPC64_GNU_VTINHERIT, 253) |
| 176 | RELOC_NUMBER (R_PPC64_GNU_VTENTRY, 254) | |
| 1df2fdb5 AM |
177 | |
| 178 | END_RELOC_NUMBERS (R_PPC64_max) | |
| 179 | ||
| f9c6b907 AM |
180 | #define IS_PPC64_TLS_RELOC(R) \ |
| 181 | (((R) >= R_PPC64_TLS && (R) <= R_PPC64_DTPREL16_HIGHESTA) \ | |
| 182 | || ((R) >= R_PPC64_TPREL16_HIGH && (R) <= R_PPC64_DTPREL16_HIGHA)) | |
| 5255ffd3 | 183 | |
| ee67d69a AM |
184 | |
| 185 | /* e_flags bits specifying ABI. | |
| 186 | 1 for original function descriptor using ABI, | |
| 187 | 2 for revised ABI without function descriptors, | |
| 188 | 0 for unspecified or not using any features affected by the differences. */ | |
| 189 | #define EF_PPC64_ABI 3 | |
| 190 | ||
| 6911b7dc AM |
191 | /* The ELFv2 ABI uses three bits in the symbol st_other field of a |
| 192 | function definition to specify the number of instructions between a | |
| 193 | function's global entry point and local entry point. | |
| 194 | The global entry point is used when it is necessary to set up the | |
| 195 | toc pointer (r2) for the function. Callers must enter the global | |
| 196 | entry point with r12 set to the global entry point address. On | |
| 197 | return from the function, r2 may have a different value to that | |
| 198 | which it had on entry. | |
| 199 | The local entry point is used when r2 is known to already be valid | |
| 200 | for the function. There is no requirement on r12 when using the | |
| 201 | local entry point, and on return r2 will contain the same value as | |
| 202 | at entry. | |
| 203 | A value of zero in these bits means that the function has a single | |
| 204 | entry point with no requirement on r12 or r2, and that on return r2 | |
| 205 | will contain the same value as at entry. | |
| 206 | Values of one and seven are reserved. */ | |
| 207 | #define STO_PPC64_LOCAL_BIT 5 | |
| 208 | #define STO_PPC64_LOCAL_MASK (7 << STO_PPC64_LOCAL_BIT) | |
| 209 | ||
| 210 | // 3 bit other field to bytes. | |
| 211 | static inline unsigned int | |
| 212 | ppc64_decode_local_entry(unsigned int other) | |
| 213 | { | |
| 214 | return ((1 << other) >> 2) << 2; | |
| 215 | } | |
| 216 | ||
| 217 | // bytes to field value. | |
| 218 | static inline unsigned int | |
| 219 | ppc64_encode_local_entry(unsigned int val) | |
| 220 | { | |
| 221 | return (val >= 4 * 4 | |
| 222 | ? (val >= 8 * 4 | |
| 223 | ? (val >= 16 * 4 ? 6 : 5) | |
| 224 | : 4) | |
| 225 | : (val >= 2 * 4 | |
| 226 | ? 3 | |
| 227 | : (val >= 1 * 4 ? 2 : 0))); | |
| 228 | } | |
| 229 | ||
| 230 | /* st_other to number of bytes. */ | |
| 231 | #define PPC64_LOCAL_ENTRY_OFFSET(other) \ | |
| 232 | ppc64_decode_local_entry (((other) & STO_PPC64_LOCAL_MASK) \ | |
| 233 | >> STO_PPC64_LOCAL_BIT) | |
| 234 | /* number of bytes to st_other. */ | |
| 235 | #define PPC64_SET_LOCAL_ENTRY_OFFSET(val) \ | |
| 236 | ppc64_encode_local_entry (val) << STO_PPC64_LOCAL_BIT | |
| 237 | ||
| 1df2fdb5 AM |
238 | /* Specify the start of the .glink section. */ |
| 239 | #define DT_PPC64_GLINK DT_LOPROC | |
| 240 | ||
| 241 | /* Specify the start and size of the .opd section. */ | |
| 242 | #define DT_PPC64_OPD (DT_LOPROC + 1) | |
| 243 | #define DT_PPC64_OPDSZ (DT_LOPROC + 2) | |
| 244 | ||
| e8910a83 AM |
245 | /* Specify whether various optimisations are possible. */ |
| 246 | #define DT_PPC64_OPT (DT_LOPROC + 3) | |
| 247 | #define PPC64_OPT_TLS 1 | |
| 248 | #define PPC64_OPT_MULTI_TOC 2 | |
| a7f2871e | 249 | |
| 1df2fdb5 | 250 | #endif /* _ELF_PPC64_H */ |