| /* PPC64 ELF support for BFD. |
| Copyright (C) 2003-2021 Free Software Foundation, Inc. |
| |
| This file is part of BFD, the Binary File Descriptor library. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| MA 02110-1301, USA. */ |
| |
| #ifndef _ELF_PPC64_H |
| #define _ELF_PPC64_H |
| |
| #include "elf/reloc-macros.h" |
| |
| /* Relocations. */ |
| START_RELOC_NUMBERS (elf_ppc64_reloc_type) |
| RELOC_NUMBER (R_PPC64_NONE, 0) |
| RELOC_NUMBER (R_PPC64_ADDR32, 1) |
| RELOC_NUMBER (R_PPC64_ADDR24, 2) |
| RELOC_NUMBER (R_PPC64_ADDR16, 3) |
| RELOC_NUMBER (R_PPC64_ADDR16_LO, 4) |
| RELOC_NUMBER (R_PPC64_ADDR16_HI, 5) |
| RELOC_NUMBER (R_PPC64_ADDR16_HA, 6) |
| RELOC_NUMBER (R_PPC64_ADDR14, 7) |
| RELOC_NUMBER (R_PPC64_ADDR14_BRTAKEN, 8) |
| RELOC_NUMBER (R_PPC64_ADDR14_BRNTAKEN, 9) |
| RELOC_NUMBER (R_PPC64_REL24, 10) |
| RELOC_NUMBER (R_PPC64_REL14, 11) |
| RELOC_NUMBER (R_PPC64_REL14_BRTAKEN, 12) |
| RELOC_NUMBER (R_PPC64_REL14_BRNTAKEN, 13) |
| RELOC_NUMBER (R_PPC64_GOT16, 14) |
| RELOC_NUMBER (R_PPC64_GOT16_LO, 15) |
| RELOC_NUMBER (R_PPC64_GOT16_HI, 16) |
| RELOC_NUMBER (R_PPC64_GOT16_HA, 17) |
| /* 18 unused. 32-bit reloc is R_PPC_PLTREL24. */ |
| RELOC_NUMBER (R_PPC64_COPY, 19) |
| RELOC_NUMBER (R_PPC64_GLOB_DAT, 20) |
| RELOC_NUMBER (R_PPC64_JMP_SLOT, 21) |
| RELOC_NUMBER (R_PPC64_RELATIVE, 22) |
| /* 23 unused. 32-bit reloc is R_PPC_LOCAL24PC. */ |
| RELOC_NUMBER (R_PPC64_UADDR32, 24) |
| RELOC_NUMBER (R_PPC64_UADDR16, 25) |
| RELOC_NUMBER (R_PPC64_REL32, 26) |
| RELOC_NUMBER (R_PPC64_PLT32, 27) |
| RELOC_NUMBER (R_PPC64_PLTREL32, 28) |
| RELOC_NUMBER (R_PPC64_PLT16_LO, 29) |
| RELOC_NUMBER (R_PPC64_PLT16_HI, 30) |
| RELOC_NUMBER (R_PPC64_PLT16_HA, 31) |
| /* 32 unused. 32-bit reloc is R_PPC_SDAREL16. */ |
| RELOC_NUMBER (R_PPC64_SECTOFF, 33) |
| RELOC_NUMBER (R_PPC64_SECTOFF_LO, 34) |
| RELOC_NUMBER (R_PPC64_SECTOFF_HI, 35) |
| RELOC_NUMBER (R_PPC64_SECTOFF_HA, 36) |
| RELOC_NUMBER (R_PPC64_REL30, 37) |
| RELOC_NUMBER (R_PPC64_ADDR64, 38) |
| RELOC_NUMBER (R_PPC64_ADDR16_HIGHER, 39) |
| RELOC_NUMBER (R_PPC64_ADDR16_HIGHERA, 40) |
| RELOC_NUMBER (R_PPC64_ADDR16_HIGHEST, 41) |
| RELOC_NUMBER (R_PPC64_ADDR16_HIGHESTA, 42) |
| RELOC_NUMBER (R_PPC64_UADDR64, 43) |
| RELOC_NUMBER (R_PPC64_REL64, 44) |
| RELOC_NUMBER (R_PPC64_PLT64, 45) |
| RELOC_NUMBER (R_PPC64_PLTREL64, 46) |
| RELOC_NUMBER (R_PPC64_TOC16, 47) |
| RELOC_NUMBER (R_PPC64_TOC16_LO, 48) |
| RELOC_NUMBER (R_PPC64_TOC16_HI, 49) |
| RELOC_NUMBER (R_PPC64_TOC16_HA, 50) |
| RELOC_NUMBER (R_PPC64_TOC, 51) |
| RELOC_NUMBER (R_PPC64_PLTGOT16, 52) |
| RELOC_NUMBER (R_PPC64_PLTGOT16_LO, 53) |
| RELOC_NUMBER (R_PPC64_PLTGOT16_HI, 54) |
| RELOC_NUMBER (R_PPC64_PLTGOT16_HA, 55) |
| |
| /* The following relocs were added in the 64-bit PowerPC ELF ABI |
| revision 1.2. */ |
| RELOC_NUMBER (R_PPC64_ADDR16_DS, 56) |
| RELOC_NUMBER (R_PPC64_ADDR16_LO_DS, 57) |
| RELOC_NUMBER (R_PPC64_GOT16_DS, 58) |
| RELOC_NUMBER (R_PPC64_GOT16_LO_DS, 59) |
| RELOC_NUMBER (R_PPC64_PLT16_LO_DS, 60) |
| RELOC_NUMBER (R_PPC64_SECTOFF_DS, 61) |
| RELOC_NUMBER (R_PPC64_SECTOFF_LO_DS, 62) |
| RELOC_NUMBER (R_PPC64_TOC16_DS, 63) |
| RELOC_NUMBER (R_PPC64_TOC16_LO_DS, 64) |
| RELOC_NUMBER (R_PPC64_PLTGOT16_DS, 65) |
| RELOC_NUMBER (R_PPC64_PLTGOT16_LO_DS, 66) |
| |
| /* Relocs added to support TLS. PowerPC64 ELF ABI revision 1.5. */ |
| RELOC_NUMBER (R_PPC64_TLS, 67) |
| RELOC_NUMBER (R_PPC64_DTPMOD64, 68) |
| RELOC_NUMBER (R_PPC64_TPREL16, 69) |
| RELOC_NUMBER (R_PPC64_TPREL16_LO, 70) |
| RELOC_NUMBER (R_PPC64_TPREL16_HI, 71) |
| RELOC_NUMBER (R_PPC64_TPREL16_HA, 72) |
| RELOC_NUMBER (R_PPC64_TPREL64, 73) |
| RELOC_NUMBER (R_PPC64_DTPREL16, 74) |
| RELOC_NUMBER (R_PPC64_DTPREL16_LO, 75) |
| RELOC_NUMBER (R_PPC64_DTPREL16_HI, 76) |
| RELOC_NUMBER (R_PPC64_DTPREL16_HA, 77) |
| RELOC_NUMBER (R_PPC64_DTPREL64, 78) |
| RELOC_NUMBER (R_PPC64_GOT_TLSGD16, 79) |
| RELOC_NUMBER (R_PPC64_GOT_TLSGD16_LO, 80) |
| RELOC_NUMBER (R_PPC64_GOT_TLSGD16_HI, 81) |
| RELOC_NUMBER (R_PPC64_GOT_TLSGD16_HA, 82) |
| RELOC_NUMBER (R_PPC64_GOT_TLSLD16, 83) |
| RELOC_NUMBER (R_PPC64_GOT_TLSLD16_LO, 84) |
| RELOC_NUMBER (R_PPC64_GOT_TLSLD16_HI, 85) |
| RELOC_NUMBER (R_PPC64_GOT_TLSLD16_HA, 86) |
| RELOC_NUMBER (R_PPC64_GOT_TPREL16_DS, 87) |
| RELOC_NUMBER (R_PPC64_GOT_TPREL16_LO_DS, 88) |
| RELOC_NUMBER (R_PPC64_GOT_TPREL16_HI, 89) |
| RELOC_NUMBER (R_PPC64_GOT_TPREL16_HA, 90) |
| RELOC_NUMBER (R_PPC64_GOT_DTPREL16_DS, 91) |
| RELOC_NUMBER (R_PPC64_GOT_DTPREL16_LO_DS, 92) |
| RELOC_NUMBER (R_PPC64_GOT_DTPREL16_HI, 93) |
| RELOC_NUMBER (R_PPC64_GOT_DTPREL16_HA, 94) |
| RELOC_NUMBER (R_PPC64_TPREL16_DS, 95) |
| RELOC_NUMBER (R_PPC64_TPREL16_LO_DS, 96) |
| RELOC_NUMBER (R_PPC64_TPREL16_HIGHER, 97) |
| RELOC_NUMBER (R_PPC64_TPREL16_HIGHERA, 98) |
| RELOC_NUMBER (R_PPC64_TPREL16_HIGHEST, 99) |
| RELOC_NUMBER (R_PPC64_TPREL16_HIGHESTA, 100) |
| RELOC_NUMBER (R_PPC64_DTPREL16_DS, 101) |
| RELOC_NUMBER (R_PPC64_DTPREL16_LO_DS, 102) |
| RELOC_NUMBER (R_PPC64_DTPREL16_HIGHER, 103) |
| RELOC_NUMBER (R_PPC64_DTPREL16_HIGHERA, 104) |
| RELOC_NUMBER (R_PPC64_DTPREL16_HIGHEST, 105) |
| RELOC_NUMBER (R_PPC64_DTPREL16_HIGHESTA, 106) |
| RELOC_NUMBER (R_PPC64_TLSGD, 107) |
| RELOC_NUMBER (R_PPC64_TLSLD, 108) |
| RELOC_NUMBER (R_PPC64_TOCSAVE, 109) |
| |
| /* Added when HA and HI relocs were changed to report overflows. */ |
| RELOC_NUMBER (R_PPC64_ADDR16_HIGH, 110) |
| RELOC_NUMBER (R_PPC64_ADDR16_HIGHA, 111) |
| RELOC_NUMBER (R_PPC64_TPREL16_HIGH, 112) |
| RELOC_NUMBER (R_PPC64_TPREL16_HIGHA, 113) |
| RELOC_NUMBER (R_PPC64_DTPREL16_HIGH, 114) |
| RELOC_NUMBER (R_PPC64_DTPREL16_HIGHA, 115) |
| |
| /* Added for ELFv2. */ |
| RELOC_NUMBER (R_PPC64_REL24_NOTOC, 116) |
| RELOC_NUMBER (R_PPC64_ADDR64_LOCAL, 117) |
| RELOC_NUMBER (R_PPC64_ENTRY, 118) |
| |
| /* Marker reloc for inline plt call insns. */ |
| RELOC_NUMBER (R_PPC64_PLTSEQ, 119) |
| RELOC_NUMBER (R_PPC64_PLTCALL, 120) |
| |
| /* Power10 support. */ |
| RELOC_NUMBER (R_PPC64_PLTSEQ_NOTOC, 121) |
| RELOC_NUMBER (R_PPC64_PLTCALL_NOTOC, 122) |
| RELOC_NUMBER (R_PPC64_PCREL_OPT, 123) |
| |
| RELOC_NUMBER (R_PPC64_D34, 128) |
| RELOC_NUMBER (R_PPC64_D34_LO, 129) |
| RELOC_NUMBER (R_PPC64_D34_HI30, 130) |
| RELOC_NUMBER (R_PPC64_D34_HA30, 131) |
| RELOC_NUMBER (R_PPC64_PCREL34, 132) |
| RELOC_NUMBER (R_PPC64_GOT_PCREL34, 133) |
| RELOC_NUMBER (R_PPC64_PLT_PCREL34, 134) |
| RELOC_NUMBER (R_PPC64_PLT_PCREL34_NOTOC, 135) |
| RELOC_NUMBER (R_PPC64_ADDR16_HIGHER34, 136) |
| RELOC_NUMBER (R_PPC64_ADDR16_HIGHERA34, 137) |
| RELOC_NUMBER (R_PPC64_ADDR16_HIGHEST34, 138) |
| RELOC_NUMBER (R_PPC64_ADDR16_HIGHESTA34, 139) |
| RELOC_NUMBER (R_PPC64_REL16_HIGHER34, 140) |
| RELOC_NUMBER (R_PPC64_REL16_HIGHERA34, 141) |
| RELOC_NUMBER (R_PPC64_REL16_HIGHEST34, 142) |
| RELOC_NUMBER (R_PPC64_REL16_HIGHESTA34, 143) |
| RELOC_NUMBER (R_PPC64_D28, 144) |
| RELOC_NUMBER (R_PPC64_PCREL28, 145) |
| RELOC_NUMBER (R_PPC64_TPREL34, 146) |
| RELOC_NUMBER (R_PPC64_DTPREL34, 147) |
| RELOC_NUMBER (R_PPC64_GOT_TLSGD_PCREL34, 148) |
| RELOC_NUMBER (R_PPC64_GOT_TLSLD_PCREL34, 149) |
| RELOC_NUMBER (R_PPC64_GOT_TPREL_PCREL34, 150) |
| RELOC_NUMBER (R_PPC64_GOT_DTPREL_PCREL34, 151) |
| |
| #ifndef RELOC_MACROS_GEN_FUNC |
| /* Relocation only used internally by gas or ld. If you need to use |
| these reloc numbers, you can change them to some other unused value |
| without affecting the ABI. They will never appear in object files. */ |
| RELOC_NUMBER (R_PPC64_LO_DS_OPT, 200) |
| RELOC_NUMBER (R_PPC64_16DX_HA, 201) |
| #endif |
| |
| RELOC_NUMBER (R_PPC64_REL16_HIGH, 240) |
| RELOC_NUMBER (R_PPC64_REL16_HIGHA, 241) |
| RELOC_NUMBER (R_PPC64_REL16_HIGHER, 242) |
| RELOC_NUMBER (R_PPC64_REL16_HIGHERA, 243) |
| RELOC_NUMBER (R_PPC64_REL16_HIGHEST, 244) |
| RELOC_NUMBER (R_PPC64_REL16_HIGHESTA, 245) |
| |
| /* Power9 split rel16 for addpcis. */ |
| RELOC_NUMBER (R_PPC64_REL16DX_HA, 246) |
| |
| /* Support STT_GNU_IFUNC plt calls. */ |
| RELOC_NUMBER (R_PPC64_JMP_IREL, 247) |
| RELOC_NUMBER (R_PPC64_IRELATIVE, 248) |
| |
| /* These are GNU extensions used in PIC code sequences. */ |
| RELOC_NUMBER (R_PPC64_REL16, 249) |
| RELOC_NUMBER (R_PPC64_REL16_LO, 250) |
| RELOC_NUMBER (R_PPC64_REL16_HI, 251) |
| RELOC_NUMBER (R_PPC64_REL16_HA, 252) |
| |
| /* These are GNU extensions to enable C++ vtable garbage collection. */ |
| RELOC_NUMBER (R_PPC64_GNU_VTINHERIT, 253) |
| RELOC_NUMBER (R_PPC64_GNU_VTENTRY, 254) |
| |
| END_RELOC_NUMBERS (R_PPC64_max) |
| |
| #define IS_PPC64_TLS_RELOC(R) \ |
| (((R) >= R_PPC64_TLS && (R) <= R_PPC64_DTPREL16_HIGHESTA) \ |
| || ((R) >= R_PPC64_TPREL16_HIGH && (R) <= R_PPC64_DTPREL16_HIGHA) \ |
| || ((R) >= R_PPC64_TPREL34 && (R) <= R_PPC64_GOT_DTPREL_PCREL34)) |
| |
| /* e_flags bits specifying ABI. |
| 1 for original function descriptor using ABI, |
| 2 for revised ABI without function descriptors, |
| 0 for unspecified or not using any features affected by the differences. */ |
| #define EF_PPC64_ABI 3 |
| |
| /* The ELFv2 ABI uses three bits in the symbol st_other field of a |
| function definition to specify the number of bytes between a |
| function's global entry point and local entry point. |
| Values of two to six specify powers of two from four to sixty four |
| bytes. For such functions: |
| The global entry point is used when it is necessary to set up the |
| toc pointer (r2) for the function. Callers must enter the global |
| entry point with r12 set to the global entry point address. On |
| return from the function r2 will contain the toc pointer for the |
| function. |
| The local entry point is used when r2 is known to already be valid |
| for the function. There is no requirement on r12 when using the |
| local entry point, and on return r2 will contain the same value as |
| at entry. |
| A value of zero in these bits means that the function has a single |
| entry point with no requirement on r12 or r2, and that on return r2 |
| will contain the same value as at entry. |
| A value of one means that the function has a single entry point |
| with no requirement on r12 or r2, and that r2 is *not* preserved. |
| A value of seven is reserved. */ |
| #define STO_PPC64_LOCAL_BIT 5 |
| #define STO_PPC64_LOCAL_MASK (7 << STO_PPC64_LOCAL_BIT) |
| |
| /* 3 bit other field to bytes. */ |
| static inline unsigned int |
| ppc64_decode_local_entry(unsigned int other) |
| { |
| return ((1 << other) >> 2) << 2; |
| } |
| |
| /* bytes to field value. */ |
| static inline unsigned int |
| ppc64_encode_local_entry(unsigned int val) |
| { |
| return (val >= 4 * 4 |
| ? (val >= 8 * 4 |
| ? (val >= 16 * 4 ? 6 : 5) |
| : 4) |
| : (val >= 2 * 4 |
| ? 3 |
| : (val >= 1 * 4 ? 2 : 0))); |
| } |
| |
| /* st_other to number of bytes. */ |
| #define PPC64_LOCAL_ENTRY_OFFSET(other) \ |
| ppc64_decode_local_entry (((other) & STO_PPC64_LOCAL_MASK) \ |
| >> STO_PPC64_LOCAL_BIT) |
| /* number of bytes to st_other. */ |
| #define PPC64_SET_LOCAL_ENTRY_OFFSET(val) \ |
| ppc64_encode_local_entry (val) << STO_PPC64_LOCAL_BIT |
| |
| /* Specify the start of the .glink section. */ |
| #define DT_PPC64_GLINK DT_LOPROC |
| |
| /* Specify the start and size of the .opd section. */ |
| #define DT_PPC64_OPD (DT_LOPROC + 1) |
| #define DT_PPC64_OPDSZ (DT_LOPROC + 2) |
| |
| /* Specify whether various optimisations are possible. */ |
| #define DT_PPC64_OPT (DT_LOPROC + 3) |
| #define PPC64_OPT_TLS 1 |
| #define PPC64_OPT_MULTI_TOC 2 |
| #define PPC64_OPT_LOCALENTRY 4 |
| |
| #endif /* _ELF_PPC64_H */ |
