binutils-gdb/bfd/elf32-i860.c

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/* Intel i860 specific support for 32-bit ELF.
Copyright 1993, 2000 Free Software Foundation, Inc.
Full i860 support contributed by Jason Eckhardt <jle@cygnus.com>.
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"