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  1. /* 390 ELF support for BFD.
  2.    Copyright (C) 2000-2015 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. /* Relocation types.  */
  41.  
  42. START_RELOC_NUMBERS (elf_s390_reloc_type)
  43.     RELOC_NUMBER (R_390_NONE, 0)        /* No reloc.  */
  44.     RELOC_NUMBER (R_390_8, 1)           /* Direct 8 bit.  */
  45.     RELOC_NUMBER (R_390_12, 2)          /* Direct 12 bit.  */
  46.     RELOC_NUMBER (R_390_16, 3)          /* Direct 16 bit.  */
  47.     RELOC_NUMBER (R_390_32, 4)          /* Direct 32 bit.  */
  48.     RELOC_NUMBER (R_390_PC32, 5)        /* PC relative 32 bit.  */
  49.     RELOC_NUMBER (R_390_GOT12, 6)       /* 12 bit GOT offset.  */
  50.     RELOC_NUMBER (R_390_GOT32, 7)       /* 32 bit GOT offset.  */
  51.     RELOC_NUMBER (R_390_PLT32, 8)       /* 32 bit PC relative PLT address.  */
  52.     RELOC_NUMBER (R_390_COPY, 9)        /* Copy symbol at runtime.  */
  53.     RELOC_NUMBER (R_390_GLOB_DAT, 10)   /* Create GOT entry.  */
  54.     RELOC_NUMBER (R_390_JMP_SLOT, 11)   /* Create PLT entry.  */
  55.     RELOC_NUMBER (R_390_RELATIVE, 12)   /* Adjust by program base.  */
  56.     RELOC_NUMBER (R_390_GOTOFF32, 13)   /* 32 bit offset to GOT.  */
  57.     RELOC_NUMBER (R_390_GOTPC, 14)      /* 32 bit PC relative offset to GOT.  */
  58.     RELOC_NUMBER (R_390_GOT16, 15)      /* 16 bit GOT offset.  */
  59.     RELOC_NUMBER (R_390_PC16, 16)       /* PC relative 16 bit.  */
  60.     RELOC_NUMBER (R_390_PC12DBL, 62)    /* PC relative 12 bit shifted by 1.  */
  61.     RELOC_NUMBER (R_390_PLT12DBL, 63)   /* 12 bit PC rel. PLT shifted by 1.  */
  62.     RELOC_NUMBER (R_390_PC16DBL, 17)    /* PC relative 16 bit shifted by 1.  */
  63.     RELOC_NUMBER (R_390_PLT16DBL, 18)   /* 16 bit PC rel. PLT shifted by 1.  */
  64.     RELOC_NUMBER (R_390_PC24DBL, 64)    /* PC relative 24 bit shifted by 1.  */
  65.     RELOC_NUMBER (R_390_PLT24DBL, 65)   /* 24 bit PC rel. PLT shifted by 1.  */
  66.     RELOC_NUMBER (R_390_PC32DBL, 19)    /* PC relative 32 bit shifted by 1.  */
  67.     RELOC_NUMBER (R_390_PLT32DBL, 20)   /* 32 bit PC rel. PLT shifted by 1.  */
  68.     RELOC_NUMBER (R_390_GOTPCDBL, 21)   /* 32 bit PC rel. GOT shifted by 1.  */
  69.     RELOC_NUMBER (R_390_64, 22)         /* Direct 64 bit.  */
  70.     RELOC_NUMBER (R_390_PC64, 23)       /* PC relative 64 bit.  */
  71.     RELOC_NUMBER (R_390_GOT64, 24)      /* 64 bit GOT offset.  */
  72.     RELOC_NUMBER (R_390_PLT64, 25)      /* 64 bit PC relative PLT address.  */
  73.     RELOC_NUMBER (R_390_GOTENT, 26)     /* 32 bit PC rel. to GOT entry >> 1. */
  74.     RELOC_NUMBER (R_390_GOTOFF16, 27)   /* 16 bit offset to GOT. */
  75.     RELOC_NUMBER (R_390_GOTOFF64, 28)   /* 64 bit offset to GOT. */
  76.     RELOC_NUMBER (R_390_GOTPLT12, 29)   /* 12 bit offset to jump slot.  */
  77.     RELOC_NUMBER (R_390_GOTPLT16, 30)   /* 16 bit offset to jump slot.  */
  78.     RELOC_NUMBER (R_390_GOTPLT32, 31)   /* 32 bit offset to jump slot.  */
  79.     RELOC_NUMBER (R_390_GOTPLT64, 32)   /* 64 bit offset to jump slot.  */
  80.     RELOC_NUMBER (R_390_GOTPLTENT, 33)  /* 32 bit rel. offset to jump slot.  */
  81.     RELOC_NUMBER (R_390_PLTOFF16, 34)   /* 16 bit offset from GOT to PLT. */
  82.     RELOC_NUMBER (R_390_PLTOFF32, 35)   /* 32 bit offset from GOT to PLT. */
  83.     RELOC_NUMBER (R_390_PLTOFF64, 36)   /* 16 bit offset from GOT to PLT. */
  84.     RELOC_NUMBER (R_390_TLS_LOAD, 37)   /* Tag for load insn in TLS code. */
  85.     RELOC_NUMBER (R_390_TLS_GDCALL, 38) /* Tag for function call in general
  86.                                            dynamic TLS code.  */
  87.     RELOC_NUMBER (R_390_TLS_LDCALL, 39) /* Tag for function call in local
  88.                                            dynamic TLS code.  */
  89.     RELOC_NUMBER (R_390_TLS_GD32, 40)   /* Direct 32 bit for general dynamic
  90.                                            thread local data.  */
  91.     RELOC_NUMBER (R_390_TLS_GD64, 41)   /* Direct 64 bit for general dynamic
  92.                                            thread local data.  */
  93.     RELOC_NUMBER (R_390_TLS_GOTIE12, 42)/* 12 bit GOT offset for static TLS
  94.                                            block offset.  */
  95.     RELOC_NUMBER (R_390_TLS_GOTIE32, 43)/* 32 bit GOT offset for static TLS
  96.                                            block offset.  */
  97.     RELOC_NUMBER (R_390_TLS_GOTIE64, 44)/* 64 bit GOT offset for static TLS
  98.                                            block offset.  */
  99.     RELOC_NUMBER (R_390_TLS_LDM32, 45)  /* Direct 32 bit for local dynamic
  100.                                            thread local data in LD code.  */
  101.     RELOC_NUMBER (R_390_TLS_LDM64, 46)  /* Direct 64 bit for local dynamic
  102.                                            thread local data in LD code.  */
  103.     RELOC_NUMBER (R_390_TLS_IE32, 47)   /* 32 bit address of GOT entry for
  104.                                            negated static TLS block offset.  */
  105.     RELOC_NUMBER (R_390_TLS_IE64, 48)   /* 64 bit address of GOT entry for
  106.                                            negated static TLS block offset.  */
  107.     RELOC_NUMBER (R_390_TLS_IEENT, 49)  /* 32 bit rel. offset to GOT entry for
  108.                                            negated static TLS block offset.  */
  109.     RELOC_NUMBER (R_390_TLS_LE32, 50)   /* 32 bit negated offset relative to
  110.                                            static TLS block.  */
  111.     RELOC_NUMBER (R_390_TLS_LE64, 51)   /* 64 bit negated offset relative to
  112.                                            static TLS block.  */
  113.     RELOC_NUMBER (R_390_TLS_LDO32, 52)  /* 32 bit offset relative to TLS
  114.                                            block.  */
  115.     RELOC_NUMBER (R_390_TLS_LDO64, 53)  /* 64 bit offset relative to TLS
  116.                                            block.  */
  117.     RELOC_NUMBER (R_390_TLS_DTPMOD, 54) /* ID of module containing symbol.  */
  118.     RELOC_NUMBER (R_390_TLS_DTPOFF, 55) /* Offset in TLS block.  */
  119.     RELOC_NUMBER (R_390_TLS_TPOFF, 56)  /* Negate offset in static TLS
  120.                                            block.  */
  121.     RELOC_NUMBER (R_390_20, 57)         /* Direct 20 bit.  */
  122.     RELOC_NUMBER (R_390_GOT20, 58)      /* 20 bit GOT offset.  */
  123.     RELOC_NUMBER (R_390_GOTPLT20, 59)   /* 20 bit offset to jump slot.  */
  124.     RELOC_NUMBER (R_390_TLS_GOTIE20, 60)/* 20 bit GOT offset for statis TLS
  125.                                            block offset.  */
  126.     RELOC_NUMBER (R_390_IRELATIVE, 61)  /* IFUNC relocation.  */
  127.     /* These are GNU extensions to enable C++ vtable garbage collection.  */
  128.     RELOC_NUMBER (R_390_GNU_VTINHERIT, 250)
  129.     RELOC_NUMBER (R_390_GNU_VTENTRY, 251)
  130. END_RELOC_NUMBERS (R_390_max)
  131.  
  132. /* Object attribute tags.  */
  133. enum
  134. {
  135.   /* 0-3 are generic. */
  136.   /* 4 is reserved for the FP ABI. */
  137.  
  138.   /* Vector ABI:
  139.      0 = not affected by the vector ABI, or not tagged.
  140.      1 = software vector ABI being used
  141.      2 = hardware vector ABI being used.  */
  142.   Tag_GNU_S390_ABI_Vector = 8,
  143. };
  144.  
  145. #endif /* _ELF_390_H */
  146.