include/elf/s390.h

   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
  45 START_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)
 133 END_RELOC_NUMBERS (R_390_max)
 134
 135 /* Object attribute tags.  */
 136 enum
 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 */