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Line 1... |
/* OR32-specific support for 32-bit ELF
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/* OR32-specific support for 32-bit ELF
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Copyright 2002, 2004, 2005, 2007 Free Software Foundation, Inc.
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Copyright 2002, 2004, 2005, 2007 Free Software Foundation, Inc.
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Copyright (C) 2010 Embecosm Limited
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Contributed by Ivan Guzvinec <ivang@opencores.org>
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Contributed by Ivan Guzvinec <ivang@opencores.org>
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Modified by Gyorgy Jeney <nog@sdf.lonestar.org> and
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Modified by Gyorgy Jeney <nog@sdf.lonestar.org> and
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Balint Cristian <rezso@rdsor.ro>
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Balint Cristian <rezso@rdsor.ro>
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Changed from Rel to Rela by Joern Rennecke <joern.rennecke@embecosm.com>.
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This file is part of BFD, the Binary File Descriptor library.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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Line 29... |
#include "elf-bfd.h"
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#include "elf-bfd.h"
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#include "elf/or32.h"
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#include "elf/or32.h"
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#include "elf/common.h"
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#include "elf/common.h"
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#include "libiberty.h"
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#include "libiberty.h"
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/* We need RELA in order to handle highpart relocations independent of
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the presence and/or location and/or value of a lowpart relocation. */
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#if 0
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/* Try to minimize the amount of space occupied by relocation tables
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/* Try to minimize the amount of space occupied by relocation tables
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on the ROM (not that the ROM won't be swamped by other ELF overhead). */
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on the ROM (not that the ROM won't be swamped by other ELF overhead). */
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#define USE_REL 1
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#define USE_REL 1
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#endif
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/* Set the right machine number for an OR32 ELF file. */
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/* Set the right machine number for an OR32 ELF file. */
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static bfd_boolean
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static bfd_boolean
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or32_elf_object_p (bfd *abfd)
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or32_elf_object_p (bfd *abfd)
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| Line 57... |
Line 63... |
(*_bfd_error_handler) (_("%B: failed to ensure that reloc sections aren't outside file"), abfd);
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(*_bfd_error_handler) (_("%B: failed to ensure that reloc sections aren't outside file"), abfd);
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elf_elfheader (abfd)->e_flags &=~ EF_OR32_MACH;
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elf_elfheader (abfd)->e_flags &=~ EF_OR32_MACH;
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}
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}
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#if 0 /* Not needed for RELA. */
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static bfd_reloc_status_type
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static bfd_reloc_status_type
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or32_elf_generic_reloc (bfd *abfd,
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or32_elf_generic_reloc (bfd *abfd,
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arelent *reloc_entry,
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arelent *reloc_entry,
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asymbol *symbol,
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asymbol *symbol,
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void * data,
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void * data,
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| Line 218... |
Line 225... |
}
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}
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return or32_elf_generic_reloc (abfd, reloc_entry, symbol, data,
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return or32_elf_generic_reloc (abfd, reloc_entry, symbol, data,
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input_section, output_bfd,
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input_section, output_bfd,
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error_message);
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error_message);
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}
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}
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#endif
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static reloc_howto_type elf_or32_howto_table[] =
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static reloc_howto_type elf_or32_howto_table[] =
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{
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{
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/* This reloc does nothing. */
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/* This reloc does nothing. */
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Line 255... |
FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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bfd_elf_generic_reloc, /* special_function */
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"R_OR32_32", /* name */
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"R_OR32_32", /* name */
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TRUE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0xffffffff, /* src_mask */
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0, /* src_mask */
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0xffffffff, /* dst_mask */
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0xffffffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* A standard 16 bit relocation. */
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/* A standard 16 bit relocation. */
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HOWTO (R_OR32_16, /* type */
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HOWTO (R_OR32_16, /* type */
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Line 270... |
FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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bfd_elf_generic_reloc, /* special_function */
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"R_OR32_16", /* name */
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"R_OR32_16", /* name */
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TRUE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x0000ffff, /* src_mask */
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0, /* src_mask */
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0x0000ffff, /* dst_mask */
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0x0000ffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* A standard 8 bit relocation. */
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/* A standard 8 bit relocation. */
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HOWTO (R_OR32_8, /* type */
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HOWTO (R_OR32_8, /* type */
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Line 285... |
FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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bfd_elf_generic_reloc, /* special_function */
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"R_OR32_8", /* name */
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"R_OR32_8", /* name */
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TRUE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x000000ff, /* src_mask */
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0, /* src_mask */
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0x000000ff, /* dst_mask */
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0x000000ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* A standard low 16 bit relocation. */
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/* A standard low 16 bit relocation. */
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HOWTO (R_OR32_CONST, /* type */
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HOWTO (R_OR32_CONST, /* type */
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Line 298... |
2, /* size (0 = byte, 1 = short, 2 = long) */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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16, /* bitsize */
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FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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complain_overflow_dont, /* complain_on_overflow */
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or32_elf_const_reloc, /* special_function */
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bfd_elf_generic_reloc, /* special_function */
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"R_OR32_CONST", /* name */
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"R_OR32_CONST", /* name */
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TRUE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x0000ffff, /* src_mask */
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0, /* src_mask */
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0x0000ffff, /* dst_mask */
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0x0000ffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* A standard high 16 bit relocation. */
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/* A standard high 16 bit relocation. */
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HOWTO (R_OR32_CONSTH, /* type */
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HOWTO (R_OR32_CONSTH, /* type */
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Line 313... |
2, /* size (0 = byte, 1 = short, 2 = long) */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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16, /* bitsize */
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FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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complain_overflow_dont, /* complain_on_overflow */
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or32_elf_consth_reloc, /* special_function */
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bfd_elf_generic_reloc, /* special_function */
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"R_OR32_CONSTH", /* name */
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"R_OR32_CONSTH", /* name */
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TRUE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x0000ffff, /* src_mask */
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0, /* src_mask */
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0x0000ffff, /* dst_mask */
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0x0000ffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* A standard branch relocation. */
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/* A standard branch relocation. */
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HOWTO (R_OR32_JUMPTARG, /* type */
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HOWTO (R_OR32_JUMPTARG, /* type */
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Line 328... |
2, /* size (0 = byte, 1 = short, 2 = long) */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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28, /* bitsize */
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28, /* bitsize */
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TRUE, /* pc_relative */
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TRUE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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complain_overflow_dont, /* complain_on_overflow */
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or32_elf_generic_reloc,/* special_function */
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bfd_elf_generic_reloc, /* special_function */
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"R_OR32_JUMPTARG", /* name */
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"R_OR32_JUMPTARG", /* name */
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TRUE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x03ffffff, /* src_mask */
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0, /* src_mask */
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0x03ffffff, /* dst_mask */
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0x03ffffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* GNU extension to record C++ vtable hierarchy. */
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/* GNU extension to record C++ vtable hierarchy. */
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HOWTO (R_OR32_GNU_VTINHERIT, /* type */
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HOWTO (R_OR32_GNU_VTINHERIT, /* type */
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0, /* rightshift */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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Line 366... |
0, /* src_mask */
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0, /* src_mask */
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0, /* dst_mask */
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0, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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};
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};
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static bfd_boolean
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or32_relocate_section (bfd * output_bfd,
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struct bfd_link_info *info,
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bfd * input_bfd,
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asection * input_section,
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bfd_byte * contents,
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Elf_Internal_Rela * relocs,
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Elf_Internal_Sym * local_syms,
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asection ** local_sections)
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{
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Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
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struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
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Elf_Internal_Rela *rel= rel = relocs;
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Elf_Internal_Rela *relend = relocs + input_section->reloc_count;
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for (; rel < relend; rel++)
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{
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int r_type = ELF32_R_TYPE (rel->r_info);
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reloc_howto_type *howto;
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unsigned long r_symndx;
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struct elf_link_hash_entry *h = NULL;
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Elf_Internal_Sym *sym = NULL;
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asection *sec = NULL;
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bfd_vma relocation = 0;
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bfd_reloc_status_type r;
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const char *name = NULL;
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if ((unsigned) r_type >= ARRAY_SIZE (elf_or32_howto_table))
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{
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bfd_set_error (bfd_error_bad_value);
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return FALSE;
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}
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if (r_type == R_OR32_GNU_VTENTRY
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|| r_type == R_OR32_GNU_VTINHERIT)
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continue;
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howto = &elf_or32_howto_table[r_type];
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r_symndx = ELF32_R_SYM (rel->r_info);
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if (r_symndx < symtab_hdr->sh_info)
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{
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sym = local_syms + r_symndx;
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sec = local_sections[r_symndx];
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relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
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name = bfd_elf_string_from_elf_section
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(input_bfd, symtab_hdr->sh_link, sym->st_name);
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name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
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}
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else
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{
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bfd_boolean unresolved_reloc, warned;
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RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
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r_symndx, symtab_hdr, sym_hashes,
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h, sec, relocation,
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unresolved_reloc, warned);
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}
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if (sec != NULL && elf_discarded_section (sec))
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{
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/* For relocs against symbols from removed linkonce sections,
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or sections discarded by a linker script, we just want the
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section contents zeroed. Avoid any special processing. */
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_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
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rel->r_info = 0;
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rel->r_addend = 0;
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continue;
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}
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if (info->relocatable)
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continue;
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r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
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rel->r_offset, relocation, rel->r_addend);
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if (r != bfd_reloc_ok)
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{
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const char *msg = NULL;
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switch (r)
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{
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/* FIXME: give useful messages for possible errors. */
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default:
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msg = _("internal error: unknown error");
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break;
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}
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if (msg)
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r = info->callbacks->warning
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(info, msg, name, input_bfd, input_section, rel->r_offset);
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if (!r)
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return FALSE;
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}
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}
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return TRUE;
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}
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/* Map BFD reloc types to OR32 ELF reloc types. */
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/* Map BFD reloc types to OR32 ELF reloc types. */
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struct or32_reloc_map
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struct or32_reloc_map
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{
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{
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bfd_reloc_code_real_type bfd_reloc_val;
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bfd_reloc_code_real_type bfd_reloc_val;
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Line 546... |
#define elf_info_to_howto 0
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#define elf_info_to_howto 0
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#define elf_info_to_howto_rel or32_info_to_howto_rel
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#define elf_info_to_howto_rel or32_info_to_howto_rel
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#define elf_backend_object_p or32_elf_object_p
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#define elf_backend_object_p or32_elf_object_p
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#define elf_backend_final_write_processing \
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#define elf_backend_final_write_processing \
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or32_elf_final_write_processing
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or32_elf_final_write_processing
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#define elf_backend_rela_normal 1
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#define elf_backend_relocate_section or32_relocate_section
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#include "elf32-target.h"
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#include "elf32-target.h"
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No newline at end of file
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No newline at end of file
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