/* Intel i860 specific support for 32-bit ELF. Copyright 1993, 2000 Free Software Foundation, Inc. Full i860 support contributed by Jason Eckhardt . 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "bfd.h" #include "sysdep.h" #include "libbfd.h" #include "elf-bfd.h" #include "elf/i860.h" /* Prototypes. */ static reloc_howto_type *lookup_howto PARAMS ((unsigned int)); static reloc_howto_type *elf32_i860_reloc_type_lookup PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); static void elf32_i860_info_to_howto_rela PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); /* This howto table is preliminary. */ static reloc_howto_type elf32_i860_howto_table [] = { /* This relocation does nothing. */ HOWTO (R_860_NONE, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_NONE", /* name */ false, /* partial_inplace */ 0, /* src_mask */ 0, /* dst_mask */ false), /* pcrel_offset */ /* A 32-bit absolute relocation. */ HOWTO (R_860_32, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_32", /* name */ false, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_COPY, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_COPY", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_GLOB_DAT, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_GLOB_DAT", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_JUMP_SLOT, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_JUMP_SLOT", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_RELATIVE, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_RELATIVE", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ /* A 26-bit PC-relative relocation. */ HOWTO (R_860_PC26, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 26, /* bitsize */ true, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_PC26", /* name */ false, /* partial_inplace */ 0x3ffffff, /* src_mask */ 0x3ffffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_PLT26, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 26, /* bitsize */ true, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_PLT26", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ true), /* pcrel_offset */ /* A 16-bit PC-relative relocation. */ HOWTO (R_860_PC16, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ true, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_PC16", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_LOW0, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOW0", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_SPLIT0, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_SPLIT0", /* name */ false, /* partial_inplace */ 0x1f07ff, /* src_mask */ 0x1f07ff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOW1, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOW1", /* name */ false, /* partial_inplace */ 0xfffe, /* src_mask */ 0xfffe, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_SPLIT1, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_SPLIT1", /* name */ false, /* partial_inplace */ 0x1f07ff, /* src_mask */ 0x1f07ff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOW2, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOW2", /* name */ false, /* partial_inplace */ 0xfffc, /* src_mask */ 0xfffc, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_SPLIT2, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_SPLIT2", /* name */ false, /* partial_inplace */ 0x1f07ff, /* src_mask */ 0x1f07ff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOW3, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOW3", /* name */ false, /* partial_inplace */ 0xfff8, /* src_mask */ 0xfff8, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOGOT0, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOGOT0", /* name */ false, /* partial_inplace */ 0, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_SPGOT0, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_SPGOT0", /* name */ false, /* partial_inplace */ 0, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_LOGOT1, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOGOT1", /* name */ false, /* partial_inplace */ 0, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_SPGOT1, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_SPGOT1", /* name */ false, /* partial_inplace */ 0, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_LOGOTOFF0, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOGOTOFF0", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_SPGOTOFF0, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_SPGOTOFF0", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOGOTOFF1, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOGOTOFF1", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_SPGOTOFF1, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_SPGOTOFF1", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOGOTOFF2, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOGOTOFF2", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOGOTOFF3, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOGOTOFF3", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOPC, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ true, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOPC", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_HIGHADJ, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HIGHADJ", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_HAGOT, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HAGOT", /* name */ false, /* partial_inplace */ 0, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_HAGOTOFF, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HAGOTOFF", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_HAPC, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ true, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HAPC", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_HIGH, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HIGH", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_HIGOT, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HIGOT", /* name */ false, /* partial_inplace */ 0, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_HIGOTOFF, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HIGOTOFF", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ }; static unsigned char elf_code_to_howto_index[R_860_max + 1]; static reloc_howto_type * lookup_howto (rtype) unsigned int rtype; { static int initialized = 0; int i; int howto_tbl_size = (int) (sizeof (elf32_i860_howto_table) / sizeof (elf32_i860_howto_table[0])); if (! initialized) { initialized = 1; memset (elf_code_to_howto_index, 0xff, sizeof (elf_code_to_howto_index)); for (i = 0; i < howto_tbl_size; i++) elf_code_to_howto_index[elf32_i860_howto_table[i].type] = i; } BFD_ASSERT (rtype <= R_860_max); i = elf_code_to_howto_index[rtype]; if (i >= howto_tbl_size) return 0; return elf32_i860_howto_table + i; } /* Given a BFD reloc, return the matching HOWTO structure. */ static reloc_howto_type * elf32_i860_reloc_type_lookup (abfd, code) bfd * abfd ATTRIBUTE_UNUSED; bfd_reloc_code_real_type code; { unsigned int rtype; switch (code) { case BFD_RELOC_NONE: rtype = R_860_NONE; break; case BFD_RELOC_32: rtype = R_860_32; break; case BFD_RELOC_860_COPY: rtype = R_860_COPY; break; case BFD_RELOC_860_GLOB_DAT: rtype = R_860_GLOB_DAT; break; case BFD_RELOC_860_JUMP_SLOT: rtype = R_860_JUMP_SLOT; break; case BFD_RELOC_860_RELATIVE: rtype = R_860_RELATIVE; break; case BFD_RELOC_860_PC26: rtype = R_860_PC26; break; case BFD_RELOC_860_PLT26: rtype = R_860_PLT26; break; case BFD_RELOC_860_PC16: rtype = R_860_PC16; break; case BFD_RELOC_860_LOW0: rtype = R_860_LOW0; break; case BFD_RELOC_860_SPLIT0: rtype = R_860_SPLIT0; break; case BFD_RELOC_860_LOW1: rtype = R_860_LOW1; break; case BFD_RELOC_860_SPLIT1: rtype = R_860_SPLIT1; break; case BFD_RELOC_860_LOW2: rtype = R_860_LOW2; break; case BFD_RELOC_860_SPLIT2: rtype = R_860_SPLIT2; break; case BFD_RELOC_860_LOW3: rtype = R_860_LOW3; break; case BFD_RELOC_860_LOGOT0: rtype = R_860_LOGOT0; break; case BFD_RELOC_860_SPGOT0: rtype = R_860_SPGOT0; break; case BFD_RELOC_860_LOGOT1: rtype = R_860_LOGOT1; break; case BFD_RELOC_860_SPGOT1: rtype = R_860_SPGOT1; break; case BFD_RELOC_860_LOGOTOFF0: rtype = R_860_LOGOTOFF0; break; case BFD_RELOC_860_SPGOTOFF0: rtype = R_860_SPGOTOFF0; break; case BFD_RELOC_860_LOGOTOFF1: rtype = R_860_LOGOTOFF1; break; case BFD_RELOC_860_SPGOTOFF1: rtype = R_860_SPGOTOFF1; break; case BFD_RELOC_860_LOGOTOFF2: rtype = R_860_LOGOTOFF2; break; case BFD_RELOC_860_LOGOTOFF3: rtype = R_860_LOGOTOFF3; break; case BFD_RELOC_860_LOPC: rtype = R_860_LOPC; break; case BFD_RELOC_860_HIGHADJ: rtype = R_860_HIGHADJ; break; case BFD_RELOC_860_HAGOT: rtype = R_860_HAGOT; break; case BFD_RELOC_860_HAGOTOFF: rtype = R_860_HAGOTOFF; break; case BFD_RELOC_860_HAPC: rtype = R_860_HAPC; break; case BFD_RELOC_860_HIGH: rtype = R_860_HIGH; break; case BFD_RELOC_860_HIGOT: rtype = R_860_HIGOT; break; case BFD_RELOC_860_HIGOTOFF: rtype = R_860_HIGOTOFF; break; default: rtype = 0; break; } return lookup_howto (rtype); } /* Given a ELF reloc, return the matching HOWTO structure. */ static void elf32_i860_info_to_howto_rela (abfd, bfd_reloc, elf_reloc) bfd *abfd ATTRIBUTE_UNUSED; arelent *bfd_reloc; Elf64_Internal_Rela *elf_reloc; { bfd_reloc->howto = lookup_howto (ELF32_R_TYPE (elf_reloc->r_info)); } #define TARGET_BIG_SYM bfd_elf32_i860_vec #define TARGET_BIG_NAME "elf32-i860" #define TARGET_LITTLE_SYM bfd_elf32_i860_little_vec #define TARGET_LITTLE_NAME "elf32-i860-little" #define ELF_ARCH bfd_arch_i860 #define ELF_MACHINE_CODE EM_860 #define ELF_MAXPAGESIZE 4096 #define elf_info_to_howto elf32_i860_info_to_howto_rela #define bfd_elf32_bfd_reloc_type_lookup elf32_i860_reloc_type_lookup #include "elf32-target.h"