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      1 // x86-64.h -- ELF definitions specific to EM_X86_64  -*- C++ -*-
      2 
      3 // Copyright (C) 2006-2014 Free Software Foundation, Inc.
      4 // Written by Andrew Chatham.
      5 
      6 // This file is part of elfcpp.
      7 
      8 // This program is free software; you can redistribute it and/or
      9 // modify it under the terms of the GNU Library General Public License
     10 // as published by the Free Software Foundation; either version 2, or
     11 // (at your option) any later version.
     12 
     13 // In addition to the permissions in the GNU Library General Public
     14 // License, the Free Software Foundation gives you unlimited
     15 // permission to link the compiled version of this file into
     16 // combinations with other programs, and to distribute those
     17 // combinations without any restriction coming from the use of this
     18 // file.  (The Library Public License restrictions do apply in other
     19 // respects; for example, they cover modification of the file, and
     20 /// distribution when not linked into a combined executable.)
     21 
     22 // This program is distributed in the hope that it will be useful, but
     23 // WITHOUT ANY WARRANTY; without even the implied warranty of
     24 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     25 // Library General Public License for more details.
     26 
     27 // You should have received a copy of the GNU Library General Public
     28 // License along with this program; if not, write to the Free Software
     29 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
     30 // 02110-1301, USA.
     31 
     32 #ifndef ELFCPP_X86_64_H
     33 #define ELFCPP_X86_64_H
     34 
     35 namespace elfcpp
     36 {
     37 
     38 // Documentation is taken from
     39 //   http://www.x86-64.org/documentation/abi-0.98.pdf
     40 //   elf.h
     41 // Documentation for the TLS relocs is taken from
     42 //   http://people.redhat.com/drepper/tls.pdf
     43 //   http://www.lsd.ic.unicamp.br/~oliva/writeups/TLS/RFC-TLSDESC-x86.txt
     44 
     45 enum
     46 {
     47   R_X86_64_NONE = 0,       // No reloc
     48   R_X86_64_64 = 1,         // Direct 64 bit
     49   R_X86_64_PC32 = 2,       // PC relative 32 bit signed
     50   R_X86_64_GOT32 = 3,      // 32 bit GOT entry
     51   R_X86_64_PLT32 = 4,      // 32 bit PLT address
     52   R_X86_64_COPY = 5,       // Copy symbol at runtime
     53   R_X86_64_GLOB_DAT = 6,   // Create GOT entry
     54   R_X86_64_JUMP_SLOT = 7,  // Create PLT entry
     55   R_X86_64_RELATIVE = 8,   // Adjust by program base
     56   R_X86_64_GOTPCREL = 9,   // 32 bit signed PC relative offset to GOT
     57   R_X86_64_32 = 10,        // Direct 32 bit zero extended
     58   R_X86_64_32S = 11,       // Direct 32 bit sign extended
     59   R_X86_64_16 = 12,        // Direct 16 bit zero extended
     60   R_X86_64_PC16 = 13,      // 16 bit sign extended pc relative
     61   R_X86_64_8 = 14,         // Direct 8 bit sign extended
     62   R_X86_64_PC8 = 15,       // 8 bit sign extended pc relative
     63 
     64   // TLS relocations
     65   R_X86_64_DTPMOD64 = 16,  // ID of module containing symbol
     66   R_X86_64_DTPOFF64 = 17,  // Offset in module's TLS block
     67   R_X86_64_TPOFF64 = 18,   // Offset in initial TLS block
     68   R_X86_64_TLSGD = 19,     // 32 bit signed PC relative offset to two
     69                            // GOT entries for GD symbol
     70   R_X86_64_TLSLD = 20,     // 32 bit signed PC relative offset to two
     71                            // GOT entries for LD symbol
     72   R_X86_64_DTPOFF32 = 21,  // Offset in TLS block
     73   R_X86_64_GOTTPOFF = 22,  // 32 bit signed PC relative offset to GOT
     74                            // entry for IE symbol
     75   R_X86_64_TPOFF32 = 23,   // Offset in initial TLS block
     76 
     77   R_X86_64_PC64 = 24,      // 64-bit PC relative
     78   R_X86_64_GOTOFF64 = 25,  // 64-bit GOT offset
     79   R_X86_64_GOTPC32 = 26,   // 32-bit PC relative offset to GOT
     80 
     81   R_X86_64_GOT64 = 27,     // 64-bit GOT entry offset
     82   R_X86_64_GOTPCREL64 = 28, // 64-bit PC relative offset to GOT entry
     83   R_X86_64_GOTPC64 = 29,   // 64-bit PC relative offset to GOT
     84   R_X86_64_GOTPLT64 = 30,  // Like GOT64, indicates that PLT entry needed
     85   R_X86_64_PLTOFF64 = 31,  // 64-bit GOT relative offset to PLT entry
     86 
     87   R_X86_64_SIZE32 = 32,
     88   R_X86_64_SIZE64 = 33,
     89 
     90   R_X86_64_GOTPC32_TLSDESC = 34, // 32-bit PC relative to TLS descriptor in GOT
     91   R_X86_64_TLSDESC_CALL = 35,    // Relaxable call through TLS descriptor
     92   R_X86_64_TLSDESC = 36,         // 2 by 64-bit TLS descriptor
     93   R_X86_64_IRELATIVE = 37,          // Adjust indirectly by program base
     94   R_X86_64_RELATIVE64 = 38,      // 64-bit adjust by program base
     95   R_X86_64_PC32_BND = 39,  // PC relative 32 bit signed with BND prefix
     96   R_X86_64_PLT32_BND = 40, // 32 bit PLT address with BND prefix
     97   // GNU vtable garbage collection extensions.
     98   R_X86_64_GNU_VTINHERIT = 250,
     99   R_X86_64_GNU_VTENTRY = 251
    100 };
    101 
    102 } // End namespace elfcpp.
    103 
    104 #endif // !defined(ELFCPP_X86_64_H)
    105