/* 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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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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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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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "libbfd.h"
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#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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/* 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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the presence and/or location and/or value of a lowpart relocation. */
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#if 0
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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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#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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{
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{
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(void) bfd_default_set_arch_mach (abfd, bfd_arch_or32, 0);
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(void) bfd_default_set_arch_mach (abfd, bfd_arch_or32, 0);
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return TRUE;
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return TRUE;
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}
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}
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/* The final processing done just before writing out an OR32 ELF object file.
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/* The final processing done just before writing out an OR32 ELF object file.
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This gets the OR32 architecture right based on the machine number. */
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This gets the OR32 architecture right based on the machine number. */
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static void
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static void
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or32_elf_final_write_processing (bfd *abfd,
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or32_elf_final_write_processing (bfd *abfd,
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bfd_boolean linker ATTRIBUTE_UNUSED)
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bfd_boolean linker ATTRIBUTE_UNUSED)
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{
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{
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/* Pad the output file so that the aligned reloc section addresses aren't
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/* Pad the output file so that the aligned reloc section addresses aren't
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* outside the file */
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* outside the file */
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unsigned long zero = 0;
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unsigned long zero = 0;
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if (bfd_seek (abfd, elf_tdata (abfd)->next_file_pos, SEEK_SET) != 0
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if (bfd_seek (abfd, elf_tdata (abfd)->next_file_pos, SEEK_SET) != 0
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|| bfd_bwrite (&zero, sizeof(zero), abfd) != sizeof(zero))
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|| bfd_bwrite (&zero, sizeof(zero), abfd) != sizeof(zero))
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(*_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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#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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asection *input_section,
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asection *input_section,
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bfd *output_bfd,
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bfd *output_bfd,
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char **error_message ATTRIBUTE_UNUSED)
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char **error_message ATTRIBUTE_UNUSED)
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{
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{
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bfd_signed_vma val;
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bfd_signed_vma val;
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bfd_reloc_status_type status;
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bfd_reloc_status_type status;
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bfd_boolean relocatable;
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bfd_boolean relocatable;
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if (bfd_is_und_section (symbol->section) /*RGD fix linker undefined miss*/
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if (bfd_is_und_section (symbol->section) /*RGD fix linker undefined miss*/
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&& output_bfd == (bfd *) NULL)
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&& output_bfd == (bfd *) NULL)
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return bfd_reloc_undefined;
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return bfd_reloc_undefined;
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relocatable = (output_bfd != NULL);
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relocatable = (output_bfd != NULL);
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if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
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if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
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return bfd_reloc_outofrange;
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return bfd_reloc_outofrange;
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/* Build up the field adjustment in VAL. */
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/* Build up the field adjustment in VAL. */
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val = 0;
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val = 0;
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if (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0)
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if (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0)
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{
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{
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/* Either we're calculating the final field value or we have a
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/* Either we're calculating the final field value or we have a
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relocation against a section symbol. Add in the section's
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relocation against a section symbol. Add in the section's
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offset or address. */
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offset or address. */
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val += symbol->section->output_section->vma;
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val += symbol->section->output_section->vma;
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val += symbol->section->output_offset;
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val += symbol->section->output_offset;
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}
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}
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if (!relocatable)
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if (!relocatable)
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{
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{
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/* We're calculating the final field value. Add in the symbol's value
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/* We're calculating the final field value. Add in the symbol's value
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and, if pc-relative, subtract the address of the field itself. */
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and, if pc-relative, subtract the address of the field itself. */
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val += symbol->value;
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val += symbol->value;
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if (reloc_entry->howto->pc_relative)
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if (reloc_entry->howto->pc_relative)
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val -= input_section->output_section->vma;
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val -= input_section->output_section->vma;
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}
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}
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if (reloc_entry->howto->pc_relative)
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if (reloc_entry->howto->pc_relative)
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val -= input_section->output_offset;
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val -= input_section->output_offset;
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/* VAL is now the final adjustment. If we're keeping this relocation
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/* VAL is now the final adjustment. If we're keeping this relocation
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in the output file, and if the relocation uses a separate addend,
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in the output file, and if the relocation uses a separate addend,
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we just need to add VAL to that addend. Otherwise we need to add
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we just need to add VAL to that addend. Otherwise we need to add
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VAL to the relocation field itself. */
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VAL to the relocation field itself. */
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if (relocatable && !reloc_entry->howto->partial_inplace)
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if (relocatable && !reloc_entry->howto->partial_inplace)
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reloc_entry->addend += val;
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reloc_entry->addend += val;
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else
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else
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{
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{
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/* Add in the separate addend, if any. */
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/* Add in the separate addend, if any. */
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val += reloc_entry->addend;
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val += reloc_entry->addend;
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/* Add VAL to the relocation field. */
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/* Add VAL to the relocation field. */
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status = _bfd_relocate_contents (reloc_entry->howto, abfd, val,
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status = _bfd_relocate_contents (reloc_entry->howto, abfd, val,
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(bfd_byte *) data
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(bfd_byte *) data
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+ reloc_entry->address);
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+ reloc_entry->address);
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if (status != bfd_reloc_ok)
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if (status != bfd_reloc_ok)
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return status;
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return status;
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}
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}
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if (relocatable)
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if (relocatable)
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reloc_entry->address += input_section->output_offset;
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reloc_entry->address += input_section->output_offset;
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return bfd_reloc_ok;
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return bfd_reloc_ok;
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}
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}
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/* Do a R_OR32_CONSTH relocation. This has to be done in combination
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/* Do a R_OR32_CONSTH relocation. This has to be done in combination
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with a R_OR32_CONST reloc, because there is a carry from the LO16 to
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with a R_OR32_CONST reloc, because there is a carry from the LO16 to
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the HI16. Here we just save the information we need; we do the
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the HI16. Here we just save the information we need; we do the
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actual relocation when we see the LO16. OR32 ELF requires that the
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actual relocation when we see the LO16. OR32 ELF requires that the
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LO16 immediately follow the HI16. As a GNU extension, we permit an
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LO16 immediately follow the HI16. As a GNU extension, we permit an
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arbitrary number of HI16 relocs to be associated with a single LO16
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arbitrary number of HI16 relocs to be associated with a single LO16
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reloc. This extension permits gcc to output the HI and LO relocs
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reloc. This extension permits gcc to output the HI and LO relocs
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itself. This code is copied from the elf32-mips.c. */
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itself. This code is copied from the elf32-mips.c. */
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struct or32_consth
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struct or32_consth
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{
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{
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struct or32_consth *next;
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struct or32_consth *next;
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bfd_byte *data;
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bfd_byte *data;
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asection *input_section;
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asection *input_section;
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arelent rel;
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arelent rel;
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};
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};
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/* FIXME: This should not be a static variable. */
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/* FIXME: This should not be a static variable. */
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static struct or32_consth *or32_consth_list;
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static struct or32_consth *or32_consth_list;
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static bfd_reloc_status_type
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static bfd_reloc_status_type
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or32_elf_consth_reloc (bfd *abfd ATTRIBUTE_UNUSED,
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or32_elf_consth_reloc (bfd *abfd ATTRIBUTE_UNUSED,
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arelent *reloc_entry,
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arelent *reloc_entry,
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asymbol *symbol ATTRIBUTE_UNUSED,
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asymbol *symbol ATTRIBUTE_UNUSED,
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void * data,
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void * data,
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asection *input_section,
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asection *input_section,
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bfd *output_bfd,
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bfd *output_bfd,
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char **error_message ATTRIBUTE_UNUSED)
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char **error_message ATTRIBUTE_UNUSED)
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{
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{
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struct or32_consth *n;
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struct or32_consth *n;
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if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
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if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
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return bfd_reloc_outofrange;
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return bfd_reloc_outofrange;
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/* Save the information, and let LO16 do the actual relocation. */
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/* Save the information, and let LO16 do the actual relocation. */
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n = bfd_malloc (sizeof *n);
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n = bfd_malloc (sizeof *n);
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if (n == NULL)
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if (n == NULL)
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return bfd_reloc_outofrange;
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return bfd_reloc_outofrange;
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/* Push this reloc on the list of pending relocations */
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/* Push this reloc on the list of pending relocations */
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n->next = or32_consth_list;
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n->next = or32_consth_list;
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n->data = data;
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n->data = data;
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n->input_section = input_section;
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n->input_section = input_section;
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n->rel = *reloc_entry;
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n->rel = *reloc_entry;
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or32_consth_list = n;
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or32_consth_list = n;
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if (output_bfd != NULL)
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if (output_bfd != NULL)
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reloc_entry->address += input_section->output_offset;
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reloc_entry->address += input_section->output_offset;
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return bfd_reloc_ok;
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return bfd_reloc_ok;
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}
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}
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/* Do a R_OR32_CONST relocation. This is a straightforward 16 bit
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/* Do a R_OR32_CONST relocation. This is a straightforward 16 bit
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inplace relocation; this function exists in order to do the
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inplace relocation; this function exists in order to do the
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R_OR32_CONSTH relocation described above. */
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R_OR32_CONSTH relocation described above. */
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static bfd_reloc_status_type
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static bfd_reloc_status_type
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or32_elf_const_reloc (bfd *abfd,
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or32_elf_const_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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asection *input_section,
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asection *input_section,
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bfd *output_bfd,
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bfd *output_bfd,
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char **error_message)
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char **error_message)
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{
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{
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bfd_vma vallo;
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bfd_vma vallo;
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if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
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if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
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return bfd_reloc_outofrange;
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return bfd_reloc_outofrange;
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vallo = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) & 0xffff;
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vallo = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) & 0xffff;
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while (or32_consth_list != NULL)
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while (or32_consth_list != NULL)
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{
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{
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bfd_reloc_status_type ret;
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bfd_reloc_status_type ret;
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struct or32_consth *hi;
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struct or32_consth *hi;
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hi = or32_consth_list;
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hi = or32_consth_list;
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/* VALLO is a signed 16-bit number. Bias it by 0x8000 so that any
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/* VALLO is a signed 16-bit number. Bias it by 0x8000 so that any
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carry or borrow will induce a change of +1 or -1 in the high part. */
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carry or borrow will induce a change of +1 or -1 in the high part. */
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hi->rel.addend += vallo;
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hi->rel.addend += vallo;
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ret = or32_elf_generic_reloc (abfd, &hi->rel, symbol, hi->data,
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ret = or32_elf_generic_reloc (abfd, &hi->rel, symbol, hi->data,
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hi->input_section, output_bfd,
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hi->input_section, output_bfd,
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error_message);
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error_message);
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if (ret != bfd_reloc_ok)
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if (ret != bfd_reloc_ok)
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return ret;
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return ret;
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or32_consth_list = hi->next;
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or32_consth_list = hi->next;
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free (hi);
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free (hi);
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}
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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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#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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HOWTO (R_OR32_NONE, /* type */
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HOWTO (R_OR32_NONE, /* 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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32, /* bitsize */
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32, /* 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_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_NONE", /* name */
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"R_OR32_NONE", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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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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/* A standard 32 bit relocation. */
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/* A standard 32 bit relocation. */
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HOWTO (R_OR32_32, /* type */
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HOWTO (R_OR32_32, /* 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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32, /* bitsize */
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32, /* 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_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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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0, /* 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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|
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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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0, /* rightshift */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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1, /* 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_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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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0, /* 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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|
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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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0, /* rightshift */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* size (0 = byte, 1 = short, 2 = long) */
|
8, /* bitsize */
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8, /* 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_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_OR32_8", /* name */
|
"R_OR32_8", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0x000000ff, /* dst_mask */
|
0x000000ff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* A standard low 16 bit relocation. */
|
/* A standard low 16 bit relocation. */
|
HOWTO (R_OR32_CONST, /* type */
|
HOWTO (R_OR32_CONST, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
16, /* bitsize */
|
16, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_dont, /* complain_on_overflow */
|
complain_overflow_dont, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_OR32_CONST", /* name */
|
"R_OR32_CONST", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0x0000ffff, /* dst_mask */
|
0x0000ffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* A standard high 16 bit relocation. */
|
/* A standard high 16 bit relocation. */
|
HOWTO (R_OR32_CONSTH, /* type */
|
HOWTO (R_OR32_CONSTH, /* type */
|
16, /* rightshift */
|
16, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
16, /* bitsize */
|
16, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_dont, /* complain_on_overflow */
|
complain_overflow_dont, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_OR32_CONSTH", /* name */
|
"R_OR32_CONSTH", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0x0000ffff, /* dst_mask */
|
0x0000ffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* A standard branch relocation. */
|
/* A standard branch relocation. */
|
HOWTO (R_OR32_JUMPTARG, /* type */
|
HOWTO (R_OR32_JUMPTARG, /* type */
|
2, /* rightshift */
|
2, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
28, /* bitsize */
|
28, /* bitsize */
|
TRUE, /* pc_relative */
|
TRUE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_dont, /* complain_on_overflow */
|
complain_overflow_dont, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_OR32_JUMPTARG", /* name */
|
"R_OR32_JUMPTARG", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0x03ffffff, /* dst_mask */
|
0x03ffffff, /* dst_mask */
|
TRUE), /* pcrel_offset */
|
TRUE), /* pcrel_offset */
|
|
|
/* GNU extension to record C++ vtable hierarchy. */
|
/* GNU extension to record C++ vtable hierarchy. */
|
HOWTO (R_OR32_GNU_VTINHERIT, /* type */
|
HOWTO (R_OR32_GNU_VTINHERIT, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_dont, /* complain_on_overflow */
|
complain_overflow_dont, /* complain_on_overflow */
|
NULL, /* special_function */
|
NULL, /* special_function */
|
"R_OR32_GNU_VTINHERIT", /* name */
|
"R_OR32_GNU_VTINHERIT", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* GNU extension to record C++ vtable member usage. */
|
/* GNU extension to record C++ vtable member usage. */
|
HOWTO (R_OR32_GNU_VTENTRY, /* type */
|
HOWTO (R_OR32_GNU_VTENTRY, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_dont, /* complain_on_overflow */
|
complain_overflow_dont, /* complain_on_overflow */
|
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
|
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
|
"R_OR32_GNU_VTENTRY", /* name */
|
"R_OR32_GNU_VTENTRY", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
};
|
};
|
|
|
static bfd_boolean
|
static bfd_boolean
|
or32_relocate_section (bfd * output_bfd,
|
or32_relocate_section (bfd * output_bfd,
|
struct bfd_link_info *info,
|
struct bfd_link_info *info,
|
bfd * input_bfd,
|
bfd * input_bfd,
|
asection * input_section,
|
asection * input_section,
|
bfd_byte * contents,
|
bfd_byte * contents,
|
Elf_Internal_Rela * relocs,
|
Elf_Internal_Rela * relocs,
|
Elf_Internal_Sym * local_syms,
|
Elf_Internal_Sym * local_syms,
|
asection ** local_sections)
|
asection ** local_sections)
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
|
struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
|
Elf_Internal_Rela *rel= rel = relocs;
|
Elf_Internal_Rela *rel= rel = relocs;
|
Elf_Internal_Rela *relend = relocs + input_section->reloc_count;
|
Elf_Internal_Rela *relend = relocs + input_section->reloc_count;
|
|
|
for (; rel < relend; rel++)
|
for (; rel < relend; rel++)
|
{
|
{
|
int r_type = ELF32_R_TYPE (rel->r_info);
|
int r_type = ELF32_R_TYPE (rel->r_info);
|
reloc_howto_type *howto;
|
reloc_howto_type *howto;
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
struct elf_link_hash_entry *h = NULL;
|
struct elf_link_hash_entry *h = NULL;
|
Elf_Internal_Sym *sym = NULL;
|
Elf_Internal_Sym *sym = NULL;
|
asection *sec = NULL;
|
asection *sec = NULL;
|
bfd_vma relocation = 0;
|
bfd_vma relocation = 0;
|
bfd_reloc_status_type r;
|
bfd_reloc_status_type r;
|
const char *name = NULL;
|
const char *name = NULL;
|
|
|
if ((unsigned) r_type >= ARRAY_SIZE (elf_or32_howto_table))
|
if ((unsigned) r_type >= ARRAY_SIZE (elf_or32_howto_table))
|
{
|
{
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (r_type == R_OR32_GNU_VTENTRY
|
if (r_type == R_OR32_GNU_VTENTRY
|
|| r_type == R_OR32_GNU_VTINHERIT)
|
|| r_type == R_OR32_GNU_VTINHERIT)
|
continue;
|
continue;
|
|
|
howto = &elf_or32_howto_table[r_type];
|
howto = &elf_or32_howto_table[r_type];
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
{
|
{
|
sym = local_syms + r_symndx;
|
sym = local_syms + r_symndx;
|
sec = local_sections[r_symndx];
|
sec = local_sections[r_symndx];
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
|
|
name = bfd_elf_string_from_elf_section
|
name = bfd_elf_string_from_elf_section
|
(input_bfd, symtab_hdr->sh_link, sym->st_name);
|
(input_bfd, symtab_hdr->sh_link, sym->st_name);
|
name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
|
name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_boolean unresolved_reloc, warned;
|
bfd_boolean unresolved_reloc, warned;
|
|
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
r_symndx, symtab_hdr, sym_hashes,
|
r_symndx, symtab_hdr, sym_hashes,
|
h, sec, relocation,
|
h, sec, relocation,
|
unresolved_reloc, warned);
|
unresolved_reloc, warned);
|
}
|
}
|
|
|
if (sec != NULL && elf_discarded_section (sec))
|
if (sec != NULL && elf_discarded_section (sec))
|
{
|
{
|
/* For relocs against symbols from removed linkonce sections,
|
/* For relocs against symbols from removed linkonce sections,
|
or sections discarded by a linker script, we just want the
|
or sections discarded by a linker script, we just want the
|
section contents zeroed. Avoid any special processing. */
|
section contents zeroed. Avoid any special processing. */
|
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
|
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
|
rel->r_info = 0;
|
rel->r_info = 0;
|
rel->r_addend = 0;
|
rel->r_addend = 0;
|
continue;
|
continue;
|
}
|
}
|
|
|
if (info->relocatable)
|
if (info->relocatable)
|
continue;
|
continue;
|
|
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
|
rel->r_offset, relocation, rel->r_addend);
|
rel->r_offset, relocation, rel->r_addend);
|
if (r != bfd_reloc_ok)
|
if (r != bfd_reloc_ok)
|
{
|
{
|
const char *msg = NULL;
|
const char *msg = NULL;
|
|
|
switch (r)
|
switch (r)
|
{
|
{
|
/* FIXME: give useful messages for possible errors. */
|
/* FIXME: give useful messages for possible errors. */
|
default:
|
default:
|
msg = _("internal error: unknown error");
|
msg = _("internal error: unknown error");
|
break;
|
break;
|
}
|
}
|
if (msg)
|
if (msg)
|
r = info->callbacks->warning
|
r = info->callbacks->warning
|
(info, msg, name, input_bfd, input_section, rel->r_offset);
|
(info, msg, name, input_bfd, input_section, rel->r_offset);
|
|
|
if (!r)
|
if (!r)
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Map BFD reloc types to OR32 ELF reloc types. */
|
/* Map BFD reloc types to OR32 ELF reloc types. */
|
|
|
struct or32_reloc_map
|
struct or32_reloc_map
|
{
|
{
|
bfd_reloc_code_real_type bfd_reloc_val;
|
bfd_reloc_code_real_type bfd_reloc_val;
|
unsigned char elf_reloc_val;
|
unsigned char elf_reloc_val;
|
};
|
};
|
|
|
static const struct or32_reloc_map or32_reloc_map[] =
|
static const struct or32_reloc_map or32_reloc_map[] =
|
{
|
{
|
{ BFD_RELOC_NONE, R_OR32_NONE },
|
{ BFD_RELOC_NONE, R_OR32_NONE },
|
{ BFD_RELOC_32, R_OR32_32 },
|
{ BFD_RELOC_32, R_OR32_32 },
|
{ BFD_RELOC_16, R_OR32_16 },
|
{ BFD_RELOC_16, R_OR32_16 },
|
{ BFD_RELOC_8, R_OR32_8 },
|
{ BFD_RELOC_8, R_OR32_8 },
|
{ BFD_RELOC_LO16, R_OR32_CONST },
|
{ BFD_RELOC_LO16, R_OR32_CONST },
|
{ BFD_RELOC_HI16, R_OR32_CONSTH },
|
{ BFD_RELOC_HI16, R_OR32_CONSTH },
|
{ BFD_RELOC_28_PCREL_S2, R_OR32_JUMPTARG },
|
{ BFD_RELOC_28_PCREL_S2, R_OR32_JUMPTARG },
|
{ BFD_RELOC_VTABLE_INHERIT, R_OR32_GNU_VTINHERIT },
|
{ BFD_RELOC_VTABLE_INHERIT, R_OR32_GNU_VTINHERIT },
|
{ BFD_RELOC_VTABLE_ENTRY, R_OR32_GNU_VTENTRY },
|
{ BFD_RELOC_VTABLE_ENTRY, R_OR32_GNU_VTENTRY },
|
};
|
};
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
bfd_reloc_code_real_type code)
|
bfd_reloc_code_real_type code)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = ARRAY_SIZE (or32_reloc_map); i--;)
|
for (i = ARRAY_SIZE (or32_reloc_map); i--;)
|
if (or32_reloc_map[i].bfd_reloc_val == code)
|
if (or32_reloc_map[i].bfd_reloc_val == code)
|
return &elf_or32_howto_table[or32_reloc_map[i].elf_reloc_val];
|
return &elf_or32_howto_table[or32_reloc_map[i].elf_reloc_val];
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
const char *r_name)
|
const char *r_name)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = 0;
|
for (i = 0;
|
i < sizeof (elf_or32_howto_table) / sizeof (elf_or32_howto_table[0]);
|
i < sizeof (elf_or32_howto_table) / sizeof (elf_or32_howto_table[0]);
|
i++)
|
i++)
|
if (elf_or32_howto_table[i].name != NULL
|
if (elf_or32_howto_table[i].name != NULL
|
&& strcasecmp (elf_or32_howto_table[i].name, r_name) == 0)
|
&& strcasecmp (elf_or32_howto_table[i].name, r_name) == 0)
|
return &elf_or32_howto_table[i];
|
return &elf_or32_howto_table[i];
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Set the howto pointer for an OR32 ELF reloc. */
|
/* Set the howto pointer for an OR32 ELF reloc. */
|
|
|
static void
|
static void
|
or32_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
|
or32_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
|
arelent *cache_ptr,
|
arelent *cache_ptr,
|
Elf_Internal_Rela *dst)
|
Elf_Internal_Rela *dst)
|
{
|
{
|
unsigned int r_type;
|
unsigned int r_type;
|
|
|
r_type = ELF32_R_TYPE (dst->r_info);
|
r_type = ELF32_R_TYPE (dst->r_info);
|
BFD_ASSERT (r_type < (unsigned int) R_OR32_max);
|
BFD_ASSERT (r_type < (unsigned int) R_OR32_max);
|
cache_ptr->howto = &elf_or32_howto_table[r_type];
|
cache_ptr->howto = &elf_or32_howto_table[r_type];
|
|
|
asymbol *s = *(cache_ptr->sym_ptr_ptr);
|
asymbol *s = *(cache_ptr->sym_ptr_ptr);
|
if (ELF32_R_SYM(dst->r_info) && (s->flags & BSF_SECTION_SYM))
|
if (ELF32_R_SYM(dst->r_info) && (s->flags & BSF_SECTION_SYM))
|
cache_ptr->sym_ptr_ptr = s->section->symbol_ptr_ptr;
|
cache_ptr->sym_ptr_ptr = s->section->symbol_ptr_ptr;
|
}
|
}
|
|
|
#define TARGET_LITTLE_SYM bfd_elf32_or32_little_vec
|
#define TARGET_LITTLE_SYM bfd_elf32_or32_little_vec
|
#define TARGET_LITTLE_NAME "elf32-littleor32"
|
#define TARGET_LITTLE_NAME "elf32-littleor32"
|
#define TARGET_BIG_SYM bfd_elf32_or32_big_vec
|
#define TARGET_BIG_SYM bfd_elf32_or32_big_vec
|
#define TARGET_BIG_NAME "elf32-or32"
|
#define TARGET_BIG_NAME "elf32-or32"
|
#define ELF_ARCH bfd_arch_or32
|
#define ELF_ARCH bfd_arch_or32
|
#define ELF_MACHINE_CODE EM_OPENRISC
|
#define ELF_MACHINE_CODE EM_OPENRISC
|
#define ELF_MACHINE_ALT1 EM_OR32
|
#define ELF_MACHINE_ALT1 EM_OR32
|
#define ELF_MAXPAGESIZE 0x2000
|
#define ELF_MAXPAGESIZE 0x2000
|
|
|
#define elf_info_to_howto 0
|
#define elf_info_to_howto 0
|
#define elf_info_to_howto_rel or32_info_to_howto_rel
|
#define elf_info_to_howto_rel or32_info_to_howto_rel
|
#define elf_backend_object_p or32_elf_object_p
|
#define elf_backend_object_p or32_elf_object_p
|
#define elf_backend_final_write_processing \
|
#define elf_backend_final_write_processing \
|
or32_elf_final_write_processing
|
or32_elf_final_write_processing
|
#define elf_backend_rela_normal 1
|
#define elf_backend_rela_normal 1
|
#define elf_backend_relocate_section or32_relocate_section
|
#define elf_backend_relocate_section or32_relocate_section
|
|
|
#include "elf32-target.h"
|
#include "elf32-target.h"
|
|
|