| /* PPC ELF support for BFD. | |
| Copyright (C) 1995-2026 Free Software Foundation, Inc. | |
| By Michael Meissner, Cygnus Support, <meissner@cygnus.com>, | |
| from information in the System V Application Binary Interface, | |
| PowerPC Processor Supplement and the PowerPC Embedded Application | |
| Binary Interface (eabi). | |
| 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. */ | |
| /* This file holds definitions specific to the PPC ELF ABI. Note | |
| that most of this is not actually implemented by BFD. */ | |
| #ifndef _ELF_PPC_H | |
| #define _ELF_PPC_H | |
| #include "elf/reloc-macros.h" | |
| /* Relocations. */ | |
| START_RELOC_NUMBERS (elf_ppc_reloc_type) | |
| RELOC_NUMBER (R_PPC_NONE, 0) | |
| RELOC_NUMBER (R_PPC_ADDR32, 1) | |
| RELOC_NUMBER (R_PPC_ADDR24, 2) | |
| RELOC_NUMBER (R_PPC_ADDR16, 3) | |
| RELOC_NUMBER (R_PPC_ADDR16_LO, 4) | |
| RELOC_NUMBER (R_PPC_ADDR16_HI, 5) | |
| RELOC_NUMBER (R_PPC_ADDR16_HA, 6) | |
| RELOC_NUMBER (R_PPC_ADDR14, 7) | |
| RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN, 8) | |
| RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN, 9) | |
| RELOC_NUMBER (R_PPC_REL24, 10) | |
| RELOC_NUMBER (R_PPC_REL14, 11) | |
| RELOC_NUMBER (R_PPC_REL14_BRTAKEN, 12) | |
| RELOC_NUMBER (R_PPC_REL14_BRNTAKEN, 13) | |
| RELOC_NUMBER (R_PPC_GOT16, 14) | |
| RELOC_NUMBER (R_PPC_GOT16_LO, 15) | |
| RELOC_NUMBER (R_PPC_GOT16_HI, 16) | |
| RELOC_NUMBER (R_PPC_GOT16_HA, 17) | |
| RELOC_NUMBER (R_PPC_PLTREL24, 18) | |
| RELOC_NUMBER (R_PPC_COPY, 19) | |
| RELOC_NUMBER (R_PPC_GLOB_DAT, 20) | |
| RELOC_NUMBER (R_PPC_JMP_SLOT, 21) | |
| RELOC_NUMBER (R_PPC_RELATIVE, 22) | |
| RELOC_NUMBER (R_PPC_LOCAL24PC, 23) | |
| RELOC_NUMBER (R_PPC_UADDR32, 24) | |
| RELOC_NUMBER (R_PPC_UADDR16, 25) | |
| RELOC_NUMBER (R_PPC_REL32, 26) | |
| RELOC_NUMBER (R_PPC_PLT32, 27) | |
| RELOC_NUMBER (R_PPC_PLTREL32, 28) | |
| RELOC_NUMBER (R_PPC_PLT16_LO, 29) | |
| RELOC_NUMBER (R_PPC_PLT16_HI, 30) | |
| RELOC_NUMBER (R_PPC_PLT16_HA, 31) | |
| RELOC_NUMBER (R_PPC_SDAREL16, 32) | |
| RELOC_NUMBER (R_PPC_SECTOFF, 33) | |
| RELOC_NUMBER (R_PPC_SECTOFF_LO, 34) | |
| RELOC_NUMBER (R_PPC_SECTOFF_HI, 35) | |
| RELOC_NUMBER (R_PPC_SECTOFF_HA, 36) | |
| RELOC_NUMBER (R_PPC_ADDR30, 37) | |
| #ifndef RELOC_MACROS_GEN_FUNC | |
| /* Relocations only used internally by 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_PPC_RELAX, 48) | |
| RELOC_NUMBER (R_PPC_RELAX_PLT, 49) | |
| RELOC_NUMBER (R_PPC_RELAX_PLTREL24, 50) | |
| /* Reloc only used internally by gas. As above, value is unimportant. */ | |
| RELOC_NUMBER (R_PPC_16DX_HA, 51) | |
| #endif | |
| /* Relocs added to support TLS. */ | |
| RELOC_NUMBER (R_PPC_TLS, 67) | |
| RELOC_NUMBER (R_PPC_DTPMOD32, 68) | |
| RELOC_NUMBER (R_PPC_TPREL16, 69) | |
| RELOC_NUMBER (R_PPC_TPREL16_LO, 70) | |
| RELOC_NUMBER (R_PPC_TPREL16_HI, 71) | |
| RELOC_NUMBER (R_PPC_TPREL16_HA, 72) | |
| RELOC_NUMBER (R_PPC_TPREL32, 73) | |
| RELOC_NUMBER (R_PPC_DTPREL16, 74) | |
| RELOC_NUMBER (R_PPC_DTPREL16_LO, 75) | |
| RELOC_NUMBER (R_PPC_DTPREL16_HI, 76) | |
| RELOC_NUMBER (R_PPC_DTPREL16_HA, 77) | |
| RELOC_NUMBER (R_PPC_DTPREL32, 78) | |
| RELOC_NUMBER (R_PPC_GOT_TLSGD16, 79) | |
| RELOC_NUMBER (R_PPC_GOT_TLSGD16_LO, 80) | |
| RELOC_NUMBER (R_PPC_GOT_TLSGD16_HI, 81) | |
| RELOC_NUMBER (R_PPC_GOT_TLSGD16_HA, 82) | |
| RELOC_NUMBER (R_PPC_GOT_TLSLD16, 83) | |
| RELOC_NUMBER (R_PPC_GOT_TLSLD16_LO, 84) | |
| RELOC_NUMBER (R_PPC_GOT_TLSLD16_HI, 85) | |
| RELOC_NUMBER (R_PPC_GOT_TLSLD16_HA, 86) | |
| RELOC_NUMBER (R_PPC_GOT_TPREL16, 87) | |
| RELOC_NUMBER (R_PPC_GOT_TPREL16_LO, 88) | |
| RELOC_NUMBER (R_PPC_GOT_TPREL16_HI, 89) | |
| RELOC_NUMBER (R_PPC_GOT_TPREL16_HA, 90) | |
| RELOC_NUMBER (R_PPC_GOT_DTPREL16, 91) | |
| RELOC_NUMBER (R_PPC_GOT_DTPREL16_LO, 92) | |
| RELOC_NUMBER (R_PPC_GOT_DTPREL16_HI, 93) | |
| RELOC_NUMBER (R_PPC_GOT_DTPREL16_HA, 94) | |
| RELOC_NUMBER (R_PPC_TLSGD, 95) | |
| RELOC_NUMBER (R_PPC_TLSLD, 96) | |
| /* The remaining relocs are from the Embedded ELF ABI, and are not | |
| in the SVR4 ELF ABI. */ | |
| RELOC_NUMBER (R_PPC_EMB_NADDR32, 101) | |
| RELOC_NUMBER (R_PPC_EMB_NADDR16, 102) | |
| RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103) | |
| RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104) | |
| RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105) | |
| RELOC_NUMBER (R_PPC_EMB_SDAI16, 106) | |
| RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107) | |
| RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108) | |
| RELOC_NUMBER (R_PPC_EMB_SDA21, 109) | |
| RELOC_NUMBER (R_PPC_EMB_MRKREF, 110) | |
| RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111) | |
| RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112) | |
| RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113) | |
| RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114) | |
| RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115) | |
| RELOC_NUMBER (R_PPC_EMB_RELSDA, 116) | |
| /* Marker reloc for inline plt call insns. */ | |
| RELOC_NUMBER (R_PPC_PLTSEQ, 119) | |
| RELOC_NUMBER (R_PPC_PLTCALL, 120) | |
| /* PowerPC VLE relocations. */ | |
| RELOC_NUMBER (R_PPC_VLE_REL8, 216) | |
| RELOC_NUMBER (R_PPC_VLE_REL15, 217) | |
| RELOC_NUMBER (R_PPC_VLE_REL24, 218) | |
| RELOC_NUMBER (R_PPC_VLE_LO16A, 219) | |
| RELOC_NUMBER (R_PPC_VLE_LO16D, 220) | |
| RELOC_NUMBER (R_PPC_VLE_HI16A, 221) | |
| RELOC_NUMBER (R_PPC_VLE_HI16D, 222) | |
| RELOC_NUMBER (R_PPC_VLE_HA16A, 223) | |
| RELOC_NUMBER (R_PPC_VLE_HA16D, 224) | |
| RELOC_NUMBER (R_PPC_VLE_SDA21, 225) | |
| RELOC_NUMBER (R_PPC_VLE_SDA21_LO, 226) | |
| RELOC_NUMBER (R_PPC_VLE_SDAREL_LO16A, 227) | |
| RELOC_NUMBER (R_PPC_VLE_SDAREL_LO16D, 228) | |
| RELOC_NUMBER (R_PPC_VLE_SDAREL_HI16A, 229) | |
| RELOC_NUMBER (R_PPC_VLE_SDAREL_HI16D, 230) | |
| RELOC_NUMBER (R_PPC_VLE_SDAREL_HA16A, 231) | |
| RELOC_NUMBER (R_PPC_VLE_SDAREL_HA16D, 232) | |
| RELOC_NUMBER (R_PPC_VLE_ADDR20, 233) | |
| /* Power9 split rel16 for addpcis. */ | |
| RELOC_NUMBER (R_PPC_REL16DX_HA, 246) | |
| /* Support STT_GNU_IFUNC plt calls. */ | |
| RELOC_NUMBER (R_PPC_IRELATIVE, 248) | |
| /* These are GNU extensions used in PIC code sequences. */ | |
| RELOC_NUMBER (R_PPC_REL16, 249) | |
| RELOC_NUMBER (R_PPC_REL16_LO, 250) | |
| RELOC_NUMBER (R_PPC_REL16_HI, 251) | |
| RELOC_NUMBER (R_PPC_REL16_HA, 252) | |
| /* These are GNU extensions to enable C++ vtable garbage collection. */ | |
| RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253) | |
| RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254) | |
| /* This is a phony reloc to handle any old fashioned TOC16 references | |
| that may still be in object files. */ | |
| RELOC_NUMBER (R_PPC_TOC16, 255) | |
| END_RELOC_NUMBERS (R_PPC_max) | |
| #define IS_PPC_TLS_RELOC(R) \ | |
| ((R) >= R_PPC_TLS && (R) <= R_PPC_GOT_DTPREL16_HA) | |
| /* Specify the value of _GLOBAL_OFFSET_TABLE_. */ | |
| #define DT_PPC_GOT (DT_LOPROC) | |
| /* Specify that tls descriptors should be optimized. */ | |
| #define DT_PPC_OPT (DT_LOPROC + 1) | |
| #define PPC_OPT_TLS 1 | |
| /* Processor specific flags for the ELF header e_flags field. */ | |
| #define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */ | |
| #define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */ | |
| #define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */ | |
| /* Processor specific program headers, p_flags field. */ | |
| #define PF_PPC_VLE 0x10000000 /* PowerPC VLE. */ | |
| /* Processor specific section headers, sh_flags field. */ | |
| #define SHF_PPC_VLE 0x10000000 /* PowerPC VLE text section. */ | |
| /* Processor specific section headers, sh_type field. */ | |
| #define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \ | |
| entries in this section \ | |
| based on the address \ | |
| specified in the associated \ | |
| symbol table entry. */ | |
| /* APUinfo note section. */ | |
| #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo" | |
| #define APUINFO_LABEL "APUinfo" | |
| #define PPC_APUINFO_ISEL 0x40 | |
| #define PPC_APUINFO_PMR 0x41 | |
| #define PPC_APUINFO_RFMCI 0x42 | |
| #define PPC_APUINFO_CACHELCK 0x43 | |
| #define PPC_APUINFO_SPE 0x100 | |
| #define PPC_APUINFO_EFS 0x101 | |
| #define PPC_APUINFO_BRLOCK 0x102 | |
| #define PPC_APUINFO_VLE 0x104 | |
| /* Object attribute tags. */ | |
| enum | |
| { | |
| /* 0-3 are generic. */ | |
| /* FP ABI, low 2 bits: | |
| 1 for double precision hard-float, | |
| 2 for soft-float, | |
| 3 for single precision hard-float. | |
| 0 for not tagged or not using any ABIs affected by the differences. | |
| Next 2 bits: | |
| 1 for ibm long double | |
| 2 for 64-bit long double | |
| 3 for IEEE long double. | |
| 0 for not tagged or not using any ABIs affected by the differences. */ | |
| Tag_GNU_Power_ABI_FP = 4, | |
| /* Value 1 for general purpose registers only, 2 for AltiVec | |
| registers, 3 for SPE registers; 0 for not tagged or not using any | |
| ABIs affected by the differences. */ | |
| Tag_GNU_Power_ABI_Vector = 8, | |
| /* Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes, | |
| 2 for ABIs using memory; 0 for not tagged or not using any ABIs | |
| affected by the differences. */ | |
| Tag_GNU_Power_ABI_Struct_Return = 12 | |
| }; | |
| #endif /* _ELF_PPC_H */ |