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      1 /* x86_64 ELF support for BFD.
      2    Copyright (C) 2000-2025 Free Software Foundation, Inc.
      3    Contributed by Jan Hubicka <jh (at) suse.cz>
      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 Foundation,
     19    Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
     20 
     21 #ifndef _ELF_X86_64_H
     22 #define _ELF_X86_64_H
     23 
     24 #include "elf/reloc-macros.h"
     25 
     26 START_RELOC_NUMBERS (elf_x86_64_reloc_type)
     27      RELOC_NUMBER (R_X86_64_NONE,     0)      /* No reloc */
     28      RELOC_NUMBER (R_X86_64_64,       1)      /* Direct 64 bit  */
     29      RELOC_NUMBER (R_X86_64_PC32,     2)      /* PC relative 32 bit signed */
     30      RELOC_NUMBER (R_X86_64_GOT32,    3)      /* 32 bit GOT entry */
     31      RELOC_NUMBER (R_X86_64_PLT32,    4)      /* 32 bit PLT address */
     32      RELOC_NUMBER (R_X86_64_COPY,     5)      /* Copy symbol at runtime */
     33      RELOC_NUMBER (R_X86_64_GLOB_DAT, 6)      /* Create GOT entry */
     34      RELOC_NUMBER (R_X86_64_JUMP_SLOT,7)      /* Create PLT entry */
     35      RELOC_NUMBER (R_X86_64_RELATIVE, 8)      /* Adjust by program base */
     36      RELOC_NUMBER (R_X86_64_GOTPCREL, 9)      /* 32 bit signed pc relative
     37                                                  offset to GOT entry */
     38      RELOC_NUMBER (R_X86_64_32,       10)     /* Direct 32 bit zero extended */
     39      RELOC_NUMBER (R_X86_64_32S,      11)     /* Direct 32 bit sign extended */
     40      RELOC_NUMBER (R_X86_64_16,       12)     /* Direct 16 bit zero extended */
     41      RELOC_NUMBER (R_X86_64_PC16,     13)     /* 16 bit sign extended pc relative*/
     42      RELOC_NUMBER (R_X86_64_8,        14)     /* Direct 8 bit sign extended */
     43      RELOC_NUMBER (R_X86_64_PC8,      15)     /* 8 bit sign extended pc relative*/
     44      RELOC_NUMBER (R_X86_64_DTPMOD64, 16)     /* ID of module containing symbol */
     45      RELOC_NUMBER (R_X86_64_DTPOFF64, 17)     /* Offset in TLS block */
     46      RELOC_NUMBER (R_X86_64_TPOFF64,  18)     /* Offset in initial TLS block */
     47      RELOC_NUMBER (R_X86_64_TLSGD,    19)     /* PC relative offset to GD GOT block */
     48      RELOC_NUMBER (R_X86_64_TLSLD,    20)     /* PC relative offset to LD GOT block */
     49      RELOC_NUMBER (R_X86_64_DTPOFF32, 21)     /* Offset in TLS block */
     50      RELOC_NUMBER (R_X86_64_GOTTPOFF, 22)     /* PC relative offset to IE GOT entry */
     51      RELOC_NUMBER (R_X86_64_TPOFF32,  23)     /* Offset in initial TLS block */
     52      RELOC_NUMBER (R_X86_64_PC64,     24)     /* PC relative 64 bit */
     53      RELOC_NUMBER (R_X86_64_GOTOFF64, 25)     /* 64 bit offset to GOT */
     54      RELOC_NUMBER (R_X86_64_GOTPC32,  26)     /* 32 bit signed pc relative
     55                                                  offset to GOT */
     56      RELOC_NUMBER (R_X86_64_GOT64,    27)     /* 64 bit GOT entry offset */
     57      RELOC_NUMBER (R_X86_64_GOTPCREL64, 28)   /* 64 bit signed pc relative
     58      						 offset to GOT entry */
     59      RELOC_NUMBER (R_X86_64_GOTPC64,  29)     /* 64 bit signed pc relative
     60      						 offset to GOT */
     61      RELOC_NUMBER (R_X86_64_GOTPLT64, 30)     /* Obsolete. The same as GOT64. */
     62      RELOC_NUMBER (R_X86_64_PLTOFF64, 31)     /* 64 bit GOT relative offset
     63      						 to PLT entry */
     64      RELOC_NUMBER (R_X86_64_SIZE32,   32)     /* 32-bit symbol size */
     65      RELOC_NUMBER (R_X86_64_SIZE64,   33)     /* 64-bit symbol size */
     66      RELOC_NUMBER (R_X86_64_GOTPC32_TLSDESC, 34)
     67 					      /* 32 bit signed pc relative
     68 						 offset to TLS descriptor
     69 						 in the GOT.  */
     70      RELOC_NUMBER (R_X86_64_TLSDESC_CALL, 35) /* Relaxable call through TLS
     71 						 descriptor.  */
     72      RELOC_NUMBER (R_X86_64_TLSDESC, 36)      /* 2x64-bit TLS descriptor.  */
     73      RELOC_NUMBER (R_X86_64_IRELATIVE, 37)    /* Adjust indirectly by program base */
     74      RELOC_NUMBER (R_X86_64_RELATIVE64, 38)   /* 64bit adjust by program base */
     75      RELOC_NUMBER (R_X86_64_PC32_BND, 39)     /* PC relative 32 bit
     76 						 signed with BND prefix  */
     77      RELOC_NUMBER (R_X86_64_PLT32_BND, 40)    /* 32 bit PLT address with
     78 						 BND prefix */
     79      /* Load from 32 bit signed pc relative offset to GOT entry without
     80 	REX nor REX2 prefixes, relaxable.  */
     81      RELOC_NUMBER (R_X86_64_GOTPCRELX, 41)
     82      /* Load from 32 bit signed pc relative offset to GOT entry with
     83 	REX prefix, relaxable.  */
     84      RELOC_NUMBER (R_X86_64_REX_GOTPCRELX, 42)
     85      /* Load from 32 bit signed pc relative offset to GOT entry if the
     86 	instruction starts at 4 bytes before the relocation offset,
     87 	relaxable.  */
     88      RELOC_NUMBER (R_X86_64_CODE_4_GOTPCRELX, 43)
     89      /* PC relative offset to IE GOT entry if the instruction starts at
     90 	4 bytes before the relocation offset.  */
     91      RELOC_NUMBER (R_X86_64_CODE_4_GOTTPOFF, 44)
     92      /* 32 bit signed pc relative offset to TLS descriptor in the GOT if
     93 	instruction starts at 4 bytes before the relocation offset.  */
     94      RELOC_NUMBER (R_X86_64_CODE_4_GOTPC32_TLSDESC, 45)
     95      /* Load from 32 bit signed pc relative offset to GOT entry if the
     96 	instruction starts at 5 bytes before the relocation offset,
     97 	relaxable.  */
     98      RELOC_NUMBER (R_X86_64_CODE_5_GOTPCRELX, 46)
     99      /* PC relative offset to IE GOT entry if the instruction starts at
    100         5 bytes before the relocation offset.  */
    101      RELOC_NUMBER (R_X86_64_CODE_5_GOTTPOFF, 47)
    102      /* 32 bit signed pc relative offset to TLS descriptor in the GOT if
    103 	instruction starts at 5 bytes before the relocation offset.  */
    104      RELOC_NUMBER (R_X86_64_CODE_5_GOTPC32_TLSDESC, 48)
    105      /* Load from 32 bit signed pc relative offset to GOT entry if the
    106 	instruction starts at 6 bytes before the relocation offset,
    107 	relaxable.  */
    108      RELOC_NUMBER (R_X86_64_CODE_6_GOTPCRELX, 49)
    109      /* PC relative offset to IE GOT entry if the instruction starts at
    110         6 bytes before the relocation offset.  */
    111      RELOC_NUMBER (R_X86_64_CODE_6_GOTTPOFF, 50)
    112      /* 32 bit signed pc relative offset to TLS descriptor in the GOT if
    113 	instruction starts at 6 bytes before the relocation offset.  */
    114      RELOC_NUMBER (R_X86_64_CODE_6_GOTPC32_TLSDESC, 51)
    115      RELOC_NUMBER (R_X86_64_GNU_VTINHERIT, 250)       /* GNU C++ hack  */
    116      RELOC_NUMBER (R_X86_64_GNU_VTENTRY, 251)         /* GNU C++ hack  */
    117 END_RELOC_NUMBERS (R_X86_64_max)
    118 
    119 /* Processor specific section types.  */
    120 
    121 #define SHT_X86_64_UNWIND	(SHT_LOPROC + 1)  /* Unwind information.  */
    122 
    123 /* Like SHN_COMMON but the symbol will be allocated in the .lbss
    124    section.  */
    125 #define SHN_X86_64_LCOMMON 	(SHN_LORESERVE + 2)
    126 
    127 #define SHF_X86_64_LARGE	0x10000000
    128 
    129 #define DT_X86_64_PLT		(DT_LOPROC + 0)
    130 #define DT_X86_64_PLTSZ		(DT_LOPROC + 1)
    131 #define DT_X86_64_PLTENT	(DT_LOPROC + 3)
    132 
    133 #endif
    134