bfd/elf32-sparc.c

   1 /* SPARC-specific support for 32-bit ELF
   2    Copyright 1993 Free Software Foundation, Inc.
   3
   4 This file is part of BFD, the Binary File Descriptor library.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 #include "bfd.h"
  21 #include "sysdep.h"
  22 #include "libbfd.h"
  23 #include "libelf.h"
  24
  25 enum reloc_type
  26   {
  27     R_SPARC_NONE = 0,
  28     R_SPARC_8,          R_SPARC_16,             R_SPARC_32,
  29     R_SPARC_DISP8,      R_SPARC_DISP16,         R_SPARC_DISP32,
  30     R_SPARC_WDISP30,    R_SPARC_WDISP22,
  31     R_SPARC_HI22,       R_SPARC_22,
  32     R_SPARC_13,         R_SPARC_LO10,
  33     R_SPARC_GOT10,      R_SPARC_GOT13,          R_SPARC_GOT22,
  34     R_SPARC_PC10,       R_SPARC_PC22,
  35     R_SPARC_WPLT30,
  36     R_SPARC_COPY,
  37     R_SPARC_GLOB_DAT,   R_SPARC_JMP_SLOT,
  38     R_SPARC_RELATIVE,
  39     R_SPARC_UA32,
  40     R_SPARC_max
  41   };
  42
  43 #if 0
  44 static CONST char *CONST reloc_type_names[] =
  45 {
  46   "R_SPARC_NONE",
  47   "R_SPARC_8",          "R_SPARC_16",           "R_SPARC_32",
  48   "R_SPARC_DISP8",      "R_SPARC_DISP16",       "R_SPARC_DISP32",
  49   "R_SPARC_WDISP30",    "R_SPARC_WDISP22",
  50   "R_SPARC_HI22",       "R_SPARC_22",
  51   "R_SPARC_13",         "R_SPARC_LO10",
  52   "R_SPARC_GOT10",      "R_SPARC_GOT13",        "R_SPARC_GOT22",
  53   "R_SPARC_PC10",       "R_SPARC_PC22",
  54   "R_SPARC_WPLT30",
  55   "R_SPARC_COPY",
  56   "R_SPARC_GLOB_DAT",   "R_SPARC_JMP_SLOT",
  57   "R_SPARC_RELATIVE",
  58   "R_SPARC_UA32",
  59 };
  60 #endif
  61
  62 static reloc_howto_type elf_sparc_howto_table[] =
  63 {
  64   HOWTO(R_SPARC_NONE,   0,0, 0,false,0,false,false, bfd_elf_generic_reloc,"R_SPARC_NONE",   false,0,0x00000000,false),
  65   HOWTO(R_SPARC_8,      0,0, 8,false,0,true,  true, bfd_elf_generic_reloc,"R_SPARC_8",      false,0,0x000000ff,false),
  66   HOWTO(R_SPARC_16,     0,1,16,false,0,true,  true, bfd_elf_generic_reloc,"R_SPARC_16",     false,0,0x0000ffff,false),
  67   HOWTO(R_SPARC_32,     0,2,32,false,0,true,  true, bfd_elf_generic_reloc,"R_SPARC_32",     false,0,0xffffffff,false),
  68   HOWTO(R_SPARC_DISP8,  0,0, 8,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_DISP8",  false,0,0x000000ff,false),
  69   HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_DISP16", false,0,0x0000ffff,false),
  70   HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_DISP32", false,0,0x00ffffff,false),
  71   HOWTO(R_SPARC_WDISP30,2,2,30,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_WDISP30",false,0,0x3fffffff,false),
  72   HOWTO(R_SPARC_WDISP22,2,2,22,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_WDISP22",false,0,0x003fffff,false),
  73   HOWTO(R_SPARC_HI22,  10,2,22,false,0,true, false, bfd_elf_generic_reloc,"R_SPARC_HI22",   false,0,0x003fffff,false),
  74   HOWTO(R_SPARC_22,     0,2,22,false,0,true,  true, bfd_elf_generic_reloc,"R_SPARC_22",     false,0,0x003fffff,false),
  75   HOWTO(R_SPARC_13,     0,1,13,false,0,true,  true, bfd_elf_generic_reloc,"R_SPARC_13",     false,0,0x00001fff,false),
  76   HOWTO(R_SPARC_LO10,   0,1,10,false,0,true, false, bfd_elf_generic_reloc,"R_SPARC_LO10",   false,0,0x000003ff,false),
  77   HOWTO(R_SPARC_GOT10,  0,1,10,false,0,false, true, bfd_elf_generic_reloc,"R_SPARC_GOT10",  false,0,0x000003ff,false),
  78   HOWTO(R_SPARC_GOT13,  0,1,13,false,0,false, true, bfd_elf_generic_reloc,"R_SPARC_GOT13",  false,0,0x00001fff,false),
  79   HOWTO(R_SPARC_GOT22, 10,2,22,false,0,false, true, bfd_elf_generic_reloc,"R_SPARC_GOT22",  false,0,0x003fffff,false),
  80   HOWTO(R_SPARC_PC10,   0,1,10,false,0,true,  true, bfd_elf_generic_reloc,"R_SPARC_PC10",   false,0,0x000003ff,false),
  81   HOWTO(R_SPARC_PC22,   0,2,22,false,0,true,  true, bfd_elf_generic_reloc,"R_SPARC_PC22",   false,0,0x003fffff,false),
  82   HOWTO(R_SPARC_WPLT30, 0,0,00,false,0,false,false, bfd_elf_generic_reloc,"R_SPARC_WPLT30", false,0,0x00000000,false),
  83   HOWTO(R_SPARC_COPY,   0,0,00,false,0,false,false, bfd_elf_generic_reloc,"R_SPARC_COPY",   false,0,0x00000000,false),
  84   HOWTO(R_SPARC_GLOB_DAT,0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_GLOB_DAT",false,0,0x00000000,false),
  85   HOWTO(R_SPARC_JMP_SLOT,0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_JMP_SLOT",false,0,0x00000000,false),
  86   HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_RELATIVE",false,0,0x00000000,false),
  87   HOWTO(R_SPARC_UA32,    0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_UA32",    false,0,0x00000000,false),
  88 };
  89
  90 struct elf_reloc_map {
  91   unsigned char bfd_reloc_val;
  92   unsigned char elf_reloc_val;
  93 };
  94
  95 static CONST struct elf_reloc_map sparc_reloc_map[] =
  96 {
  97   { BFD_RELOC_NONE, R_SPARC_NONE, },
  98   { BFD_RELOC_16, R_SPARC_16, },
  99   { BFD_RELOC_8, R_SPARC_8 },
 100   { BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
 101   { BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits.  */
 102   { BFD_RELOC_32, R_SPARC_32 },
 103   { BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
 104   { BFD_RELOC_HI22, R_SPARC_HI22 },
 105   { BFD_RELOC_LO10, R_SPARC_LO10, },
 106   { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
 107   { BFD_RELOC_SPARC22, R_SPARC_22 },
 108   { BFD_RELOC_SPARC13, R_SPARC_13 },
 109   { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
 110   { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
 111   { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
 112   { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
 113   { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
 114   { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
 115   { BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
 116   { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
 117   { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
 118   { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
 119   { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
 120   /*  { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */
 121 };
 122
 123 static CONST struct reloc_howto_struct *
 124 DEFUN (bfd_elf32_bfd_reloc_type_lookup, (abfd, code),
 125        bfd *abfd AND
 126        bfd_reloc_code_real_type code)
 127 {
 128   int i;
 129   for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++)
 130     {
 131       if (sparc_reloc_map[i].bfd_reloc_val == code)
 132         return &elf_sparc_howto_table[(int) sparc_reloc_map[i].elf_reloc_val];
 133     }
 134   return 0;
 135 }
 136
 137 static void
 138 DEFUN (elf_info_to_howto, (abfd, cache_ptr, dst),
 139        bfd *abfd AND
 140        arelent *cache_ptr AND
 141        Elf32_Internal_Rela *dst)
 142 {
 143   BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max);
 144   cache_ptr->howto = &elf_sparc_howto_table[ELF32_R_TYPE(dst->r_info)];
 145 }
 146
 147 #define TARGET_BIG_SYM  bfd_elf32_sparc_vec
 148 #define TARGET_BIG_NAME "elf32-sparc"
 149 #define ELF_ARCH        bfd_arch_sparc
 150
 151 #include "elf32-target.h"