| /* PPC ELF support for BFD. |
| Copyright (C) 1995-2021 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 */ |
