/* Intel i860 specific support for 32-bit ELF.
- Copyright 1993, 2000 Free Software Foundation, Inc.
+ Copyright 1993, 1995, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
+ 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 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 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 3 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.
+ 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. */
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/i860.h"
+/* special_function for R_860_PC26 relocation. */
+static bfd_reloc_status_type
+i860_howto_pc26_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void *data ATTRIBUTE_UNUSED,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ bfd_vma insn;
+ bfd_vma relocation;
+ bfd_byte *addr;
+
+ if (output_bfd != NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* Used elf32-mips.c as an example. */
+ if (bfd_is_und_section (symbol->section)
+ && output_bfd == (bfd *) NULL)
+ return bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
+
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ return bfd_reloc_outofrange;
+
+ /* Adjust for PC-relative relocation. */
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset
+ + reloc_entry->address
+ + 4);
+
+ /* Check for target out of range. */
+ if ((bfd_signed_vma)relocation > (0x3ffffff << 2)
+ || (bfd_signed_vma)relocation < (-0x4000000 << 2))
+ return bfd_reloc_outofrange;
+
+ addr = (bfd_byte *) data + reloc_entry->address;
+ insn = bfd_get_32 (abfd, addr);
+
+ relocation >>= reloc_entry->howto->rightshift;
+ insn = (insn & ~reloc_entry->howto->dst_mask)
+ | (relocation & reloc_entry->howto->dst_mask);
+
+ bfd_put_32 (abfd, (bfd_vma) insn, addr);
+
+ return bfd_reloc_ok;
+}
+
+/* special_function for R_860_PC16 relocation. */
+static bfd_reloc_status_type
+i860_howto_pc16_reloc (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void *data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ bfd_vma insn;
+ bfd_vma relocation;
+ bfd_byte *addr;
+
+ if (output_bfd != NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* Used elf32-mips.c as an example. */
+ if (bfd_is_und_section (symbol->section)
+ && output_bfd == (bfd *) NULL)
+ return bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
+
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ return bfd_reloc_outofrange;
+
+ /* Adjust for PC-relative relocation. */
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset
+ + reloc_entry->address
+ + 4);
+
+ /* Check for target out of range. */
+ if ((bfd_signed_vma)relocation > (0x7fff << 2)
+ || (bfd_signed_vma)relocation < (-0x8000 << 2))
+ return bfd_reloc_outofrange;
+
+ addr = (bfd_byte *) data + reloc_entry->address;
+ insn = bfd_get_32 (abfd, addr);
+
+ relocation >>= reloc_entry->howto->rightshift;
+ relocation = (((relocation & 0xf800) << 5) | (relocation & 0x7ff))
+ & reloc_entry->howto->dst_mask;
+ insn = (insn & ~reloc_entry->howto->dst_mask) | relocation;
+
+ bfd_put_32 (abfd, (bfd_vma) insn, addr);
+
+ return bfd_reloc_ok;
+}
+
+/* special_function for R_860_HIGHADJ relocation. */
+static bfd_reloc_status_type
+i860_howto_highadj_reloc (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void *data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ bfd_vma insn;
+ bfd_vma relocation;
+ bfd_byte *addr;
+
+ if (output_bfd != NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* Used elf32-mips.c as an example. */
+ if (bfd_is_und_section (symbol->section)
+ && output_bfd == (bfd *) NULL)
+ return bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
+ relocation += 0x8000;
+
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ return bfd_reloc_outofrange;
+
+ addr = (bfd_byte *) data + reloc_entry->address;
+ insn = bfd_get_32 (abfd, addr);
+
+ relocation = ((relocation >> 16) & 0xffff);
+
+ insn = (insn & 0xffff0000) | relocation;
+
+ bfd_put_32 (abfd, (bfd_vma) insn, addr);
+
+ return bfd_reloc_ok;
+}
+
+/* special_function for R_860_SPLITn relocations. */
+static bfd_reloc_status_type
+i860_howto_splitn_reloc (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void *data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ bfd_vma insn;
+ bfd_vma relocation;
+ bfd_byte *addr;
+
+ if (output_bfd != NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* Used elf32-mips.c as an example. */
+ if (bfd_is_und_section (symbol->section)
+ && output_bfd == (bfd *) NULL)
+ return bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
-/* Prototypes. */
-static reloc_howto_type *lookup_howto
- PARAMS ((unsigned int));
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ return bfd_reloc_outofrange;
-static reloc_howto_type *elf32_i860_reloc_type_lookup
- PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
+ addr = (bfd_byte *) data + reloc_entry->address;
+ insn = bfd_get_32 (abfd, addr);
-static void elf32_i860_info_to_howto_rela
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
+ relocation = (((relocation & 0xf800) << 5) | (relocation & 0x7ff))
+ & reloc_entry->howto->dst_mask;
+ insn = (insn & ~reloc_entry->howto->dst_mask) | relocation;
+ bfd_put_32 (abfd, (bfd_vma) insn, addr);
+
+ return bfd_reloc_ok;
+}
/* This howto table is preliminary. */
static reloc_howto_type elf32_i860_howto_table [] =
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_NONE", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- false), /* pcrel_offset */
+ 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 */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_32", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_COPY, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_COPY", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_GLOB_DAT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ 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 */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_JUMP_SLOT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ 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 */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_RELATIVE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_RELATIVE", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* A 26-bit PC-relative relocation. */
HOWTO (R_860_PC26, /* type */
- 0, /* rightshift */
+ 2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_pc26_reloc, /* special_function */
"R_860_PC26", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x3ffffff, /* src_mask */
0x3ffffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_PLT26, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_PLT26", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* A 16-bit PC-relative relocation. */
HOWTO (R_860_PC16, /* type */
- 0, /* rightshift */
+ 2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_pc16_reloc, /* special_function */
"R_860_PC16", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x1f07ff, /* src_mask */
0x1f07ff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_LOW0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOW0", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_SPLIT0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_splitn_reloc, /* special_function */
"R_860_SPLIT0", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x1f07ff, /* src_mask */
0x1f07ff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOW1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOW1", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xfffe, /* src_mask */
0xfffe, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_SPLIT1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_splitn_reloc, /* special_function */
"R_860_SPLIT1", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x1f07fe, /* src_mask */
0x1f07fe, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOW2, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOW2", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xfffc, /* src_mask */
0xfffc, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_SPLIT2, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_splitn_reloc, /* special_function */
"R_860_SPLIT2", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x1f07fc, /* src_mask */
0x1f07fc, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOW3, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOW3", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xfff8, /* src_mask */
0xfff8, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOGOT0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOT0", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_SPGOT0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_SPGOT0", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_LOGOT1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOT1", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_SPGOT1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_SPGOT1", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_LOGOTOFF0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOTOFF0", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_SPGOTOFF0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_SPGOTOFF0", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOGOTOFF1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOTOFF1", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_SPGOTOFF1, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_SPGOTOFF1", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOGOTOFF2, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOTOFF2", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOGOTOFF3, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOGOTOFF3", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_LOPC, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_LOPC", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_HIGHADJ, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ i860_howto_highadj_reloc, /* special_function */
"R_860_HIGHADJ", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_HAGOT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HAGOT", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_HAGOTOFF, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HAGOTOFF", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_HAPC, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HAPC", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_HIGH, /* type */
- 0, /* rightshift */
+ 16, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HIGH", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_860_HIGOT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HIGOT", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_860_HIGOTOFF, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_860_HIGOTOFF", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
};
-
\f
static unsigned char elf_code_to_howto_index[R_860_max + 1];
static reloc_howto_type *
-lookup_howto (rtype)
- unsigned int rtype;
+lookup_howto (unsigned int rtype)
{
static int initialized = 0;
int i;
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;
+elf32_i860_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
unsigned int rtype;
rtype = R_860_COPY;
break;
case BFD_RELOC_860_GLOB_DAT:
- rtype = R_860_GLOB_DAT;
+ rtype = R_860_GLOB_DAT;
break;
case BFD_RELOC_860_JUMP_SLOT:
rtype = R_860_JUMP_SLOT;
return lookup_howto (rtype);
}
+static reloc_howto_type *
+elf32_i860_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < (sizeof (elf32_i860_howto_table)
+ / sizeof (elf32_i860_howto_table[0]));
+ i++)
+ if (elf32_i860_howto_table[i].name != NULL
+ && strcasecmp (elf32_i860_howto_table[i].name, r_name) == 0)
+ return &elf32_i860_howto_table[i];
+
+ return NULL;
+}
/* 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;
+elf32_i860_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *bfd_reloc,
+ Elf_Internal_Rela *elf_reloc)
{
- bfd_reloc->howto = lookup_howto (ELF32_R_TYPE (elf_reloc->r_info));
+ bfd_reloc->howto
+ = lookup_howto ((unsigned) ELF32_R_TYPE (elf_reloc->r_info));
}
+\f
+/* Specialized relocation handler for R_860_SPLITn. These relocations
+ involves a 16-bit field that is split into two contiguous parts. */
+static bfd_reloc_status_type
+elf32_i860_relocate_splitn (bfd *input_bfd,
+ Elf_Internal_Rela *rello,
+ bfd_byte *contents,
+ bfd_vma value)
+{
+ bfd_vma insn;
+ reloc_howto_type *howto;
+ howto = lookup_howto ((unsigned) ELF32_R_TYPE (rello->r_info));
+ insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
+
+ /* Relocate. */
+ value += rello->r_addend;
+
+ /* Separate the fields and insert. */
+ value = (((value & 0xf800) << 5) | (value & 0x7ff)) & howto->dst_mask;
+ insn = (insn & ~howto->dst_mask) | value;
+
+ bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
+ return bfd_reloc_ok;
+}
+
+/* Specialized relocation handler for R_860_PC16. This relocation
+ involves a 16-bit, PC-relative field that is split into two contiguous
+ parts. */
+static bfd_reloc_status_type
+elf32_i860_relocate_pc16 (bfd *input_bfd,
+ asection *input_section,
+ Elf_Internal_Rela *rello,
+ bfd_byte *contents,
+ bfd_vma value)
+{
+ bfd_vma insn;
+ reloc_howto_type *howto;
+ howto = lookup_howto ((unsigned) ELF32_R_TYPE (rello->r_info));
+ insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
+
+ /* Adjust for PC-relative relocation. */
+ value -= (input_section->output_section->vma
+ + input_section->output_offset);
+ value -= rello->r_offset;
+
+ /* Relocate. */
+ value += rello->r_addend;
+
+ /* Adjust the value by 4, then separate the fields and insert. */
+ value = (value - 4) >> howto->rightshift;
+ value = (((value & 0xf800) << 5) | (value & 0x7ff)) & howto->dst_mask;
+ insn = (insn & ~howto->dst_mask) | value;
+
+ bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
+ return bfd_reloc_ok;
+
+}
+
+/* Specialized relocation handler for R_860_PC26. This relocation
+ involves a 26-bit, PC-relative field which must be adjusted by 4. */
+static bfd_reloc_status_type
+elf32_i860_relocate_pc26 (bfd *input_bfd,
+ asection *input_section,
+ Elf_Internal_Rela *rello,
+ bfd_byte *contents,
+ bfd_vma value)
+{
+ bfd_vma insn;
+ reloc_howto_type *howto;
+ howto = lookup_howto ((unsigned) ELF32_R_TYPE (rello->r_info));
+ insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
+
+ /* Adjust for PC-relative relocation. */
+ value -= (input_section->output_section->vma
+ + input_section->output_offset);
+ value -= rello->r_offset;
+
+ /* Relocate. */
+ value += rello->r_addend;
+
+ /* Adjust value by 4 and insert the field. */
+ value = ((value - 4) >> howto->rightshift) & howto->dst_mask;
+ insn = (insn & ~howto->dst_mask) | value;
+
+ bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
+ return bfd_reloc_ok;
+
+}
+
+/* Specialized relocation handler for R_860_HIGHADJ. */
+static bfd_reloc_status_type
+elf32_i860_relocate_highadj (bfd *input_bfd,
+ Elf_Internal_Rela *rel,
+ bfd_byte *contents,
+ bfd_vma value)
+{
+ bfd_vma insn;
+
+ insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
+
+ value += rel->r_addend;
+ value += 0x8000;
+ value = ((value >> 16) & 0xffff);
+
+ insn = (insn & 0xffff0000) | value;
+
+ bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
+ return bfd_reloc_ok;
+}
+
+/* Perform a single relocation. By default we use the standard BFD
+ routines. However, we handle some specially. */
+static bfd_reloc_status_type
+i860_final_link_relocate (reloc_howto_type *howto,
+ bfd *input_bfd,
+ asection *input_section,
+ bfd_byte *contents,
+ Elf_Internal_Rela *rel,
+ bfd_vma relocation)
+{
+ return _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel->r_offset, relocation,
+ rel->r_addend);
+}
+
+/* Relocate an i860 ELF section.
+
+ This is boiler-plate code copied from fr30.
+
+ The RELOCATE_SECTION function is called by the new ELF backend linker
+ to handle the relocations for a section.
+
+ The relocs are always passed as Rela structures; if the section
+ actually uses Rel structures, the r_addend field will always be
+ zero.
+
+ This function is responsible for adjusting the section contents as
+ necessary, and (if using Rela relocs and generating a relocatable
+ output file) adjusting the reloc addend as necessary.
+ This function does not have to worry about setting the reloc
+ address or the reloc symbol index.
+ LOCAL_SYMS is a pointer to the swapped in local symbols.
+ LOCAL_SECTIONS is an array giving the section in the input file
+ corresponding to the st_shndx field of each local symbol.
+
+ The global hash table entry for the global symbols can be found
+ via elf_sym_hashes (input_bfd).
+
+ When generating relocatable output, this function must handle
+ STB_LOCAL/STT_SECTION symbols specially. The output symbol is
+ going to be the section symbol corresponding to the output
+ section, which means that the addend must be adjusted
+ accordingly. */
+static bfd_boolean
+elf32_i860_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info,
+ bfd *input_bfd,
+ asection *input_section,
+ bfd_byte *contents,
+ Elf_Internal_Rela *relocs,
+ Elf_Internal_Sym *local_syms,
+ asection **local_sections)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+
+ symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (input_bfd);
+ relend = relocs + input_section->reloc_count;
+
+ for (rel = relocs; rel < relend; rel ++)
+ {
+ reloc_howto_type * howto;
+ unsigned long r_symndx;
+ Elf_Internal_Sym * sym;
+ asection * sec;
+ struct elf_link_hash_entry * h;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+ const char * name = NULL;
+ int r_type;
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+ r_symndx = ELF32_R_SYM (rel->r_info);
+
+ howto = lookup_howto ((unsigned) ELF32_R_TYPE (rel->r_info));
+ h = NULL;
+ sym = NULL;
+ sec = NULL;
+
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ sec = local_sections [r_symndx];
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
+
+ name = bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name);
+ name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
+ }
+ else
+ {
+ bfd_boolean unresolved_reloc, warned;
+
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned);
+ }
+
+ if (sec != NULL && elf_discarded_section (sec))
+ {
+ /* For relocs against symbols from removed linkonce sections,
+ or sections discarded by a linker script, we just want the
+ section contents zeroed. Avoid any special processing. */
+ _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
+ rel->r_info = 0;
+ rel->r_addend = 0;
+ continue;
+ }
+
+ if (info->relocatable)
+ continue;
+
+ switch (r_type)
+ {
+ default:
+ r = i860_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel, relocation);
+ break;
+
+ case R_860_HIGHADJ:
+ r = elf32_i860_relocate_highadj (input_bfd, rel, contents,
+ relocation);
+ break;
+
+ case R_860_PC16:
+ r = elf32_i860_relocate_pc16 (input_bfd, input_section, rel,
+ contents, relocation);
+ break;
+
+ case R_860_PC26:
+ r = elf32_i860_relocate_pc26 (input_bfd, input_section, rel,
+ contents, relocation);
+ break;
+
+ case R_860_SPLIT0:
+ case R_860_SPLIT1:
+ case R_860_SPLIT2:
+ r = elf32_i860_relocate_splitn (input_bfd, rel, contents,
+ relocation);
+ break;
+
+ /* We do not yet handle GOT/PLT/Dynamic relocations. */
+ case R_860_COPY:
+ case R_860_GLOB_DAT:
+ case R_860_JUMP_SLOT:
+ case R_860_RELATIVE:
+ case R_860_PLT26:
+ case R_860_LOGOT0:
+ case R_860_SPGOT0:
+ case R_860_LOGOT1:
+ case R_860_SPGOT1:
+ case R_860_LOGOTOFF0:
+ case R_860_SPGOTOFF0:
+ case R_860_LOGOTOFF1:
+ case R_860_SPGOTOFF1:
+ case R_860_LOGOTOFF2:
+ case R_860_LOGOTOFF3:
+ case R_860_LOPC:
+ case R_860_HAGOT:
+ case R_860_HAGOTOFF:
+ case R_860_HAPC:
+ case R_860_HIGOT:
+ case R_860_HIGOTOFF:
+ r = bfd_reloc_notsupported;
+ break;
+ }
+
+ if (r != bfd_reloc_ok)
+ {
+ const char * msg = (const char *) NULL;
+
+ switch (r)
+ {
+ case bfd_reloc_overflow:
+ r = info->callbacks->reloc_overflow
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
+ break;
+
+ case bfd_reloc_undefined:
+ r = info->callbacks->undefined_symbol
+ (info, name, input_bfd, input_section, rel->r_offset, TRUE);
+ break;
+
+ case bfd_reloc_outofrange:
+ msg = _("internal error: out of range error");
+ break;
+
+ case bfd_reloc_notsupported:
+ msg = _("internal error: unsupported relocation error");
+ break;
+
+ case bfd_reloc_dangerous:
+ msg = _("internal error: dangerous relocation");
+ break;
+
+ default:
+ msg = _("internal error: unknown error");
+ break;
+ }
+
+ if (msg)
+ r = info->callbacks->warning
+ (info, msg, name, input_bfd, input_section, rel->r_offset);
+
+ if (! r)
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+/* Return whether a symbol name implies a local label. SVR4/860 compilers
+ generate labels of the form ".ep.function_name" to denote the end of a
+ function prolog. These should be local.
+ ??? Do any other SVR4 compilers have this convention? If so, this should
+ be added to the generic routine. */
+static bfd_boolean
+elf32_i860_is_local_label_name (bfd *abfd, const char *name)
+{
+ if (name[0] == '.' && name[1] == 'e' && name[2] == 'p' && name[3] == '.')
+ return TRUE;
+
+ return _bfd_elf_is_local_label_name (abfd, name);
+}
+\f
#define TARGET_BIG_SYM bfd_elf32_i860_vec
#define TARGET_BIG_NAME "elf32-i860"
#define TARGET_LITTLE_SYM bfd_elf32_i860_little_vec
#define ELF_MACHINE_CODE EM_860
#define ELF_MAXPAGESIZE 4096
-
+#define elf_backend_rela_normal 1
+#define elf_info_to_howto_rel NULL
#define elf_info_to_howto elf32_i860_info_to_howto_rela
+#define elf_backend_relocate_section elf32_i860_relocate_section
#define bfd_elf32_bfd_reloc_type_lookup elf32_i860_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup elf32_i860_reloc_name_lookup
+#define bfd_elf32_bfd_is_local_label_name elf32_i860_is_local_label_name
#include "elf32-target.h"
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