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- /* Intel 80386/80486-specific support for 32-bit ELF
- Copyright 1993 Free Software Foundation, Inc.
-
- This file is part of BFD, the Binary File Descriptor library.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "bfd.h"
- #include "sysdep.h"
- #include "libbfd.h"
- #include "libelf.h"
-
- #define USE_REL 1 /* 386 uses REL relocations instead of RELA */
-
- enum reloc_type
- {
- R_386_NONE = 0,
- R_386_32,
- R_386_PC32,
- R_386_GOT32,
- R_386_PLT32,
- R_386_COPY,
- R_386_GLOB_DAT,
- R_386_JUMP_SLOT,
- R_386_RELATIVE,
- R_386_GOTOFF,
- R_386_GOTPC,
- R_386_max
- };
-
- #if 0
- static CONST char *CONST reloc_type_names[] =
- {
- "R_386_NONE",
- "R_386_32",
- "R_386_PC32",
- "R_386_GOT32",
- "R_386_PLT32",
- "R_386_COPY",
- "R_386_GLOB_DAT",
- "R_386_JUMP_SLOT",
- "R_386_RELATIVE",
- "R_386_GOTOFF",
- "R_386_GOTPC",
- };
- #endif
-
- static reloc_howto_type elf_howto_table[]=
- {
- HOWTO(R_386_NONE, 0,0, 0,false,0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_NONE", true,0x00000000,0x00000000,false),
- HOWTO(R_386_32, 0,2,32,false,0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_32", true,0xffffffff,0xffffffff,false),
- HOWTO(R_386_PC32, 0,2,32,true, 0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_PC32", true,0xffffffff,0xffffffff,true),
- HOWTO(R_386_GOT32, 0,2,32,false,0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_GOT32", true,0xffffffff,0xffffffff,false),
- HOWTO(R_386_PLT32, 0,2,32,false,0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_PLT32", true,0xffffffff,0xffffffff,false),
- HOWTO(R_386_COPY, 0,2,32,false,0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_COPY", true,0xffffffff,0xffffffff,false),
- HOWTO(R_386_GLOB_DAT, 0,2,32,false,0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_GLOB_DAT", true,0xffffffff,0xffffffff,false),
- HOWTO(R_386_JUMP_SLOT, 0,2,32,false,0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_JUMP_SLOT",true,0xffffffff,0xffffffff,false),
- HOWTO(R_386_RELATIVE, 0,2,32,false,0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_RELATIVE", true,0xffffffff,0xffffffff,false),
- HOWTO(R_386_GOTOFF, 0,2,32,false,0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_GOTOFF", true,0xffffffff,0xffffffff,false),
- HOWTO(R_386_GOTPC, 0,2,32,false,0,complain_overflow_bitfield, bfd_elf_generic_reloc,"R_386_GOTPC", true,0xffffffff,0xffffffff,false),
- };
-
- #ifdef DEBUG_GEN_RELOC
- #define TRACE(str) fprintf (stderr, "i386 bfd reloc lookup %d (%s)\n", code, str)
- #else
- #define TRACE(str)
- #endif
-
- static CONST struct reloc_howto_struct *
- DEFUN (elf_i386_reloc_type_lookup, (abfd, code),
- bfd *abfd AND
- bfd_reloc_code_real_type code)
- {
- switch (code)
- {
- case BFD_RELOC_NONE:
- TRACE ("BFD_RELOC_NONE");
- return &elf_howto_table[ (int)R_386_NONE ];
-
- case BFD_RELOC_32:
- TRACE ("BFD_RELOC_32");
- return &elf_howto_table[ (int)R_386_32 ];
-
- case BFD_RELOC_32_PCREL:
- TRACE ("BFD_RELOC_PC32");
- return &elf_howto_table[ (int)R_386_PC32 ];
-
- case BFD_RELOC_386_GOT32:
- TRACE ("BFD_RELOC_386_GOT32");
- return &elf_howto_table[ (int)R_386_GOT32 ];
-
- case BFD_RELOC_386_PLT32:
- TRACE ("BFD_RELOC_386_PLT32");
- return &elf_howto_table[ (int)R_386_PLT32 ];
-
- case BFD_RELOC_386_COPY:
- TRACE ("BFD_RELOC_386_COPY");
- return &elf_howto_table[ (int)R_386_COPY ];
-
- case BFD_RELOC_386_GLOB_DAT:
- TRACE ("BFD_RELOC_386_GLOB_DAT");
- return &elf_howto_table[ (int)R_386_GLOB_DAT ];
-
- case BFD_RELOC_386_JUMP_SLOT:
- TRACE ("BFD_RELOC_386_JUMP_SLOT");
- return &elf_howto_table[ (int)R_386_JUMP_SLOT ];
-
- case BFD_RELOC_386_RELATIVE:
- TRACE ("BFD_RELOC_386_RELATIVE");
- return &elf_howto_table[ (int)R_386_RELATIVE ];
-
- case BFD_RELOC_386_GOTOFF:
- TRACE ("BFD_RELOC_386_GOTOFF");
- return &elf_howto_table[ (int)R_386_GOTOFF ];
-
- case BFD_RELOC_386_GOTPC:
- TRACE ("BFD_RELOC_386_GOTPC");
- return &elf_howto_table[ (int)R_386_GOTPC ];
-
- default:
- break;
- }
-
- TRACE ("Unknown");
- return 0;
- }
-
- static void
- DEFUN(elf_i386_info_to_howto, (abfd, cache_ptr, dst),
- bfd *abfd AND
- arelent *cache_ptr AND
- Elf32_Internal_Rela *dst)
- {
- BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < R_386_max);
-
- cache_ptr->howto = &elf_howto_table[ELF32_R_TYPE(dst->r_info)];
- }
-
- static void
- DEFUN(elf_i386_info_to_howto_rel, (abfd, cache_ptr, dst),
- bfd *abfd AND
- arelent *cache_ptr AND
- Elf32_Internal_Rel *dst)
- {
- BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < R_386_max);
-
- cache_ptr->howto = &elf_howto_table[ELF32_R_TYPE(dst->r_info)];
- }
-
- #define TARGET_LITTLE_SYM bfd_elf32_i386_vec
- #define TARGET_LITTLE_NAME "elf32-i386"
- #define ELF_ARCH bfd_arch_i386
- #define ELF_MACHINE_CODE EM_386
- #define elf_info_to_howto elf_i386_info_to_howto
- #define elf_info_to_howto_rel elf_i386_info_to_howto_rel
- #define bfd_elf32_bfd_reloc_type_lookup elf_i386_reloc_type_lookup
- #define ELF_MAXPAGESIZE 0x1000
-
- #include "elf32-target.h"
-