elfcpp/i386.h

   1 // i386.h -- ELF definitions specific to EM_386  -*- C++ -*-
   2
   3 // Copyright (C) 2006-2023 Free Software Foundation, Inc.
   4 // Written by Ian Lance Taylor <iant@google.com>.
   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_I386_H
  33 #define ELFCPP_I386_H
  34
  35 // Documentation for the TLS relocs is taken from
  36 //   http://people.redhat.com/drepper/tls.pdf
  37 //   http://www.lsd.ic.unicamp.br/~oliva/writeups/TLS/RFC-TLSDESC-x86.txt
  38
  39 namespace elfcpp
  40 {
  41
  42 enum
  43 {
  44   R_386_NONE = 0,        // No reloc
  45   R_386_32 = 1,          // Direct 32 bit zero extended
  46   R_386_PC32 = 2,        // PC relative 32 bit signed
  47   R_386_GOT32 = 3,       // 32 bit GOT entry
  48   R_386_PLT32 = 4,       // 32 bit PLT address
  49   R_386_COPY = 5,        // Copy symbol at runtime
  50   R_386_GLOB_DAT = 6,    // Create GOT entry
  51   R_386_JUMP_SLOT = 7,   // Create PLT entry
  52   R_386_RELATIVE = 8,    // Adjust by program base
  53   R_386_GOTOFF = 9,      // 32-bit GOT offset
  54   R_386_GOTPC = 10,      // 32-bit PC relative offset to GOT
  55   // Used by Sun.
  56   R_386_32PLT = 11,
  57   // TLS extensions.
  58   R_386_TLS_TPOFF = 14,  // Outstanding Initial Exec reloc, gnu-style (both)
  59   R_386_TLS_IE = 15,     // Initial Initial Exec reloc, gnu-style (no-PIC)
  60   R_386_TLS_GOTIE = 16,  // Initial Initial Exec reloc, gnu-style (for PIC)
  61   R_386_TLS_LE = 17,     // Initial Local Exec reloc, gnu-style
  62   R_386_TLS_GD = 18,     // Initial General Dynamic reloc, gnu-style
  63   R_386_TLS_LDM = 19,    // Initial Local Dynamic reloc, gnu-style
  64   // GNU extensions.
  65   R_386_16 = 20,         // Direct 16 bit zero extended
  66   R_386_PC16 = 21,       // 16 bit sign extended pc relative
  67   R_386_8 = 22,          // Direct 8 bit sign extended
  68   R_386_PC8 = 23,        // 8 bit sign extended pc relative
  69   // More TLS relocs.
  70   R_386_TLS_GD_32 = 24,     // Initial General Dynamic reloc, sun-style
  71   R_386_TLS_GD_PUSH = 25,   // Initial General Dynamic reloc, sun-style
  72   R_386_TLS_GD_CALL = 26,   // Initial General Dynamic reloc, sun-style
  73   R_386_TLS_GD_POP = 27,    // Initial General Dynamic reloc, sun-style
  74   R_386_TLS_LDM_32 = 28,    // Initial Local Dynamic reloc, sun-style
  75   R_386_TLS_LDM_PUSH = 29,  // Initial Local Dynamic reloc, sun-style
  76   R_386_TLS_LDM_CALL = 30,  // Initial Local Dynamic reloc, sun-style
  77   R_386_TLS_LDM_POP = 31,   // Initial Local Dynamic reloc, sun-style
  78   R_386_TLS_LDO_32 = 32,    // Initial Local Dynamic reloc, sun+gnu styles
  79   R_386_TLS_IE_32 = 33,     // Initial Initial Exec reloc, sun-style
  80   R_386_TLS_LE_32 = 34,     // Initial Local Exec reloc, sun-style
  81   R_386_TLS_DTPMOD32 = 35,  // Outstanding General/Local Dynamic reloc, sun+gnu
  82   R_386_TLS_DTPOFF32 = 36,  // Outstanding General Dynamic reloc, sun+gnu
  83   R_386_TLS_TPOFF32 = 37,   // Outstanding Initial Exec reloc, sun-style
  84   R_386_TLS_GOTDESC = 39,   // GOT offset for TLS descriptor
  85   R_386_TLS_DESC_CALL = 40, // Marker of call through TLS desc for relaxation
  86   R_386_TLS_DESC = 41,      // TLS descriptor containing pointer to code and
  87                             // to argument, returning TLS offset for symbol
  88   R_386_IRELATIVE = 42,     // Adjust indirectly by program base
  89   R_386_GOT32X = 43,        // 32 bit GOT entry, relaxable
  90   // Used by Intel.
  91   R_386_USED_BY_INTEL_200 = 200,
  92   // GNU vtable garbage collection extensions.
  93   R_386_GNU_VTINHERIT = 250,
  94   R_386_GNU_VTENTRY = 251
  95 };
  96
  97 } // End namespace elfcpp.
  98
  99 #endif // !defined(ELFCPP_I386_H)