1/* 390 ELF support for BFD. 2 Copyright (C) 2000-2024 Free Software Foundation, Inc. 3 Contributed by Carl B. Pedersen and Martin Schwidefsky. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 20 02110-1301, USA. */ 21 22#ifndef _ELF_390_H 23#define _ELF_390_H 24 25/* Processor specific flags for the ELF header e_flags field. */ 26 27/* Symbol types. */ 28 29#define STACK_REG 15 /* Global Stack reg */ 30#define BACKL_REG 14 /* Global Backlink reg */ 31#define BASE_REG 13 /* Global Base reg */ 32#define GOT_REG 12 /* Holds addr of GOT */ 33 34#include "elf/reloc-macros.h" 35 36/* Processor specific flags for the ELF header e_flags field. */ 37 38#define EF_S390_HIGH_GPRS 0x00000001 39 40/* Request 4k page table size. */ 41#define PT_S390_PGSTE (PT_LOPROC + 0) 42 43/* Relocation types. */ 44 45START_RELOC_NUMBERS (elf_s390_reloc_type) 46 RELOC_NUMBER (R_390_NONE, 0) /* No reloc. */ 47 RELOC_NUMBER (R_390_8, 1) /* Direct 8 bit. */ 48 RELOC_NUMBER (R_390_12, 2) /* Direct 12 bit. */ 49 RELOC_NUMBER (R_390_16, 3) /* Direct 16 bit. */ 50 RELOC_NUMBER (R_390_32, 4) /* Direct 32 bit. */ 51 RELOC_NUMBER (R_390_PC32, 5) /* PC relative 32 bit. */ 52 RELOC_NUMBER (R_390_GOT12, 6) /* 12 bit GOT offset. */ 53 RELOC_NUMBER (R_390_GOT32, 7) /* 32 bit GOT offset. */ 54 RELOC_NUMBER (R_390_PLT32, 8) /* 32 bit PC relative PLT address. */ 55 RELOC_NUMBER (R_390_COPY, 9) /* Copy symbol at runtime. */ 56 RELOC_NUMBER (R_390_GLOB_DAT, 10) /* Create GOT entry. */ 57 RELOC_NUMBER (R_390_JMP_SLOT, 11) /* Create PLT entry. */ 58 RELOC_NUMBER (R_390_RELATIVE, 12) /* Adjust by program base. */ 59 RELOC_NUMBER (R_390_GOTOFF32, 13) /* 32 bit offset to GOT. */ 60 RELOC_NUMBER (R_390_GOTPC, 14) /* 32 bit PC relative offset to GOT. */ 61 RELOC_NUMBER (R_390_GOT16, 15) /* 16 bit GOT offset. */ 62 RELOC_NUMBER (R_390_PC16, 16) /* PC relative 16 bit. */ 63 RELOC_NUMBER (R_390_PC12DBL, 62) /* PC relative 12 bit shifted by 1. */ 64 RELOC_NUMBER (R_390_PLT12DBL, 63) /* 12 bit PC rel. PLT shifted by 1. */ 65 RELOC_NUMBER (R_390_PC16DBL, 17) /* PC relative 16 bit shifted by 1. */ 66 RELOC_NUMBER (R_390_PLT16DBL, 18) /* 16 bit PC rel. PLT shifted by 1. */ 67 RELOC_NUMBER (R_390_PC24DBL, 64) /* PC relative 24 bit shifted by 1. */ 68 RELOC_NUMBER (R_390_PLT24DBL, 65) /* 24 bit PC rel. PLT shifted by 1. */ 69 RELOC_NUMBER (R_390_PC32DBL, 19) /* PC relative 32 bit shifted by 1. */ 70 RELOC_NUMBER (R_390_PLT32DBL, 20) /* 32 bit PC rel. PLT shifted by 1. */ 71 RELOC_NUMBER (R_390_GOTPCDBL, 21) /* 32 bit PC rel. GOT shifted by 1. */ 72 RELOC_NUMBER (R_390_64, 22) /* Direct 64 bit. */ 73 RELOC_NUMBER (R_390_PC64, 23) /* PC relative 64 bit. */ 74 RELOC_NUMBER (R_390_GOT64, 24) /* 64 bit GOT offset. */ 75 RELOC_NUMBER (R_390_PLT64, 25) /* 64 bit PC relative PLT address. */ 76 RELOC_NUMBER (R_390_GOTENT, 26) /* 32 bit PC rel. to GOT entry >> 1. */ 77 RELOC_NUMBER (R_390_GOTOFF16, 27) /* 16 bit offset to GOT. */ 78 RELOC_NUMBER (R_390_GOTOFF64, 28) /* 64 bit offset to GOT. */ 79 RELOC_NUMBER (R_390_GOTPLT12, 29) /* 12 bit offset to jump slot. */ 80 RELOC_NUMBER (R_390_GOTPLT16, 30) /* 16 bit offset to jump slot. */ 81 RELOC_NUMBER (R_390_GOTPLT32, 31) /* 32 bit offset to jump slot. */ 82 RELOC_NUMBER (R_390_GOTPLT64, 32) /* 64 bit offset to jump slot. */ 83 RELOC_NUMBER (R_390_GOTPLTENT, 33) /* 32 bit rel. offset to jump slot. */ 84 RELOC_NUMBER (R_390_PLTOFF16, 34) /* 16 bit offset from GOT to PLT. */ 85 RELOC_NUMBER (R_390_PLTOFF32, 35) /* 32 bit offset from GOT to PLT. */ 86 RELOC_NUMBER (R_390_PLTOFF64, 36) /* 16 bit offset from GOT to PLT. */ 87 RELOC_NUMBER (R_390_TLS_LOAD, 37) /* Tag for load insn in TLS code. */ 88 RELOC_NUMBER (R_390_TLS_GDCALL, 38) /* Tag for function call in general 89 dynamic TLS code. */ 90 RELOC_NUMBER (R_390_TLS_LDCALL, 39) /* Tag for function call in local 91 dynamic TLS code. */ 92 RELOC_NUMBER (R_390_TLS_GD32, 40) /* Direct 32 bit for general dynamic 93 thread local data. */ 94 RELOC_NUMBER (R_390_TLS_GD64, 41) /* Direct 64 bit for general dynamic 95 thread local data. */ 96 RELOC_NUMBER (R_390_TLS_GOTIE12, 42)/* 12 bit GOT offset for static TLS 97 block offset. */ 98 RELOC_NUMBER (R_390_TLS_GOTIE32, 43)/* 32 bit GOT offset for static TLS 99 block offset. */ 100 RELOC_NUMBER (R_390_TLS_GOTIE64, 44)/* 64 bit GOT offset for static TLS 101 block offset. */ 102 RELOC_NUMBER (R_390_TLS_LDM32, 45) /* Direct 32 bit for local dynamic 103 thread local data in LD code. */ 104 RELOC_NUMBER (R_390_TLS_LDM64, 46) /* Direct 64 bit for local dynamic 105 thread local data in LD code. */ 106 RELOC_NUMBER (R_390_TLS_IE32, 47) /* 32 bit address of GOT entry for 107 negated static TLS block offset. */ 108 RELOC_NUMBER (R_390_TLS_IE64, 48) /* 64 bit address of GOT entry for 109 negated static TLS block offset. */ 110 RELOC_NUMBER (R_390_TLS_IEENT, 49) /* 32 bit rel. offset to GOT entry for 111 negated static TLS block offset. */ 112 RELOC_NUMBER (R_390_TLS_LE32, 50) /* 32 bit negated offset relative to 113 static TLS block. */ 114 RELOC_NUMBER (R_390_TLS_LE64, 51) /* 64 bit negated offset relative to 115 static TLS block. */ 116 RELOC_NUMBER (R_390_TLS_LDO32, 52) /* 32 bit offset relative to TLS 117 block. */ 118 RELOC_NUMBER (R_390_TLS_LDO64, 53) /* 64 bit offset relative to TLS 119 block. */ 120 RELOC_NUMBER (R_390_TLS_DTPMOD, 54) /* ID of module containing symbol. */ 121 RELOC_NUMBER (R_390_TLS_DTPOFF, 55) /* Offset in TLS block. */ 122 RELOC_NUMBER (R_390_TLS_TPOFF, 56) /* Negate offset in static TLS 123 block. */ 124 RELOC_NUMBER (R_390_20, 57) /* Direct 20 bit. */ 125 RELOC_NUMBER (R_390_GOT20, 58) /* 20 bit GOT offset. */ 126 RELOC_NUMBER (R_390_GOTPLT20, 59) /* 20 bit offset to jump slot. */ 127 RELOC_NUMBER (R_390_TLS_GOTIE20, 60)/* 20 bit GOT offset for statis TLS 128 block offset. */ 129 RELOC_NUMBER (R_390_IRELATIVE, 61) /* IFUNC relocation. */ 130 /* These are GNU extensions to enable C++ vtable garbage collection. */ 131 RELOC_NUMBER (R_390_GNU_VTINHERIT, 250) 132 RELOC_NUMBER (R_390_GNU_VTENTRY, 251) 133END_RELOC_NUMBERS (R_390_max) 134 135/* Object attribute tags. */ 136enum 137{ 138 /* 0-3 are generic. */ 139 /* 4 is reserved for the FP ABI. */ 140 141 /* Vector ABI: 142 0 = not affected by the vector ABI, or not tagged. 143 1 = software vector ABI being used 144 2 = hardware vector ABI being used. */ 145 Tag_GNU_S390_ABI_Vector = 8, 146}; 147 148#endif /* _ELF_390_H */ 149