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jeremybenn |
/* SPARC-specific support for ELF
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jeremybenn |
Copyright 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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24 |
jeremybenn |
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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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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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(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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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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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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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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MA 02110-1301, USA. */
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/* This file handles functionality common to the different SPARC ABI's. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#include "libiberty.h"
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#include "elf-bfd.h"
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#include "elf/sparc.h"
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#include "opcode/sparc.h"
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#include "elfxx-sparc.h"
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#include "elf-vxworks.h"
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/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
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#define MINUS_ONE (~ (bfd_vma) 0)
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#define ABI_64_P(abfd) \
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(get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
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/* The relocation "howto" table. */
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/* Utility for performing the standard initial work of an instruction
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relocation.
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*PRELOCATION will contain the relocated item.
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*PINSN will contain the instruction from the input stream.
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If the result is `bfd_reloc_other' the caller can continue with
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performing the relocation. Otherwise it must stop and return the
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value to its caller. */
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static bfd_reloc_status_type
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init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
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PTR data, asection *input_section, bfd *output_bfd,
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bfd_vma *prelocation, bfd_vma *pinsn)
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{
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bfd_vma relocation;
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reloc_howto_type *howto = reloc_entry->howto;
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if (output_bfd != (bfd *) NULL
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&& (symbol->flags & BSF_SECTION_SYM) == 0
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&& (! howto->partial_inplace
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|| reloc_entry->addend == 0))
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{
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reloc_entry->address += input_section->output_offset;
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return bfd_reloc_ok;
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}
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/* This works because partial_inplace is FALSE. */
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if (output_bfd != NULL)
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return bfd_reloc_continue;
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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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relocation = (symbol->value
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+ symbol->section->output_section->vma
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+ symbol->section->output_offset);
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relocation += reloc_entry->addend;
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if (howto->pc_relative)
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{
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relocation -= (input_section->output_section->vma
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+ input_section->output_offset);
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relocation -= reloc_entry->address;
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}
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*prelocation = relocation;
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*pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
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return bfd_reloc_other;
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}
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/* For unsupported relocs. */
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static bfd_reloc_status_type
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sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
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arelent *reloc_entry ATTRIBUTE_UNUSED,
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asymbol *symbol ATTRIBUTE_UNUSED,
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PTR data ATTRIBUTE_UNUSED,
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asection *input_section ATTRIBUTE_UNUSED,
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bfd *output_bfd ATTRIBUTE_UNUSED,
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char **error_message ATTRIBUTE_UNUSED)
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{
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return bfd_reloc_notsupported;
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}
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/* Handle the WDISP16 reloc. */
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static bfd_reloc_status_type
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sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
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PTR data, asection *input_section, bfd *output_bfd,
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char **error_message ATTRIBUTE_UNUSED)
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{
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bfd_vma relocation;
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bfd_vma insn;
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bfd_reloc_status_type status;
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status = init_insn_reloc (abfd, reloc_entry, symbol, data,
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input_section, output_bfd, &relocation, &insn);
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if (status != bfd_reloc_other)
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return status;
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insn &= ~ (bfd_vma) 0x303fff;
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insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
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bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
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if ((bfd_signed_vma) relocation < - 0x40000
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|| (bfd_signed_vma) relocation > 0x3ffff)
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return bfd_reloc_overflow;
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else
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return bfd_reloc_ok;
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}
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/* Handle the HIX22 reloc. */
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static bfd_reloc_status_type
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sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
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PTR data, asection *input_section, bfd *output_bfd,
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char **error_message ATTRIBUTE_UNUSED)
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{
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bfd_vma relocation;
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bfd_vma insn;
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bfd_reloc_status_type status;
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status = init_insn_reloc (abfd, reloc_entry, symbol, data,
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input_section, output_bfd, &relocation, &insn);
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if (status != bfd_reloc_other)
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return status;
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relocation ^= MINUS_ONE;
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insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
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bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
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if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
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return bfd_reloc_overflow;
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else
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return bfd_reloc_ok;
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}
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/* Handle the LOX10 reloc. */
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static bfd_reloc_status_type
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sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
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PTR data, asection *input_section, bfd *output_bfd,
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char **error_message ATTRIBUTE_UNUSED)
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{
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bfd_vma relocation;
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bfd_vma insn;
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bfd_reloc_status_type status;
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status = init_insn_reloc (abfd, reloc_entry, symbol, data,
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input_section, output_bfd, &relocation, &insn);
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if (status != bfd_reloc_other)
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return status;
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insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
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bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
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return bfd_reloc_ok;
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}
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static reloc_howto_type _bfd_sparc_elf_howto_table[] =
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{
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HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
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HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
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HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
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HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
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HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
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HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
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HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
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HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
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HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
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HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
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HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
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| 203 |
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HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
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| 205 |
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HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
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| 206 |
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HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
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| 207 |
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HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
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| 208 |
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HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
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| 209 |
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HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
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| 210 |
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HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
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| 211 |
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HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
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| 212 |
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HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
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| 213 |
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HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
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| 214 |
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HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
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| 215 |
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HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
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| 216 |
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HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
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| 217 |
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HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
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| 218 |
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HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
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| 219 |
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HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
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| 220 |
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HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
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| 221 |
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HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
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| 222 |
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HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
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| 223 |
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HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
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| 224 |
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HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
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| 225 |
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HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
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| 226 |
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HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
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| 227 |
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HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
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| 228 |
|
|
HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
|
| 229 |
|
|
HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
|
| 230 |
|
|
HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
|
| 231 |
|
|
HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
|
| 232 |
|
|
HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
|
| 233 |
|
|
HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
|
| 234 |
|
|
HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
|
| 235 |
|
|
HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
|
| 236 |
|
|
HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
|
| 237 |
|
|
HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
|
| 238 |
|
|
HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
|
| 239 |
|
|
HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
|
| 240 |
|
|
HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
|
| 241 |
|
|
HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
|
| 242 |
|
|
HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
|
| 243 |
|
|
HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
|
| 244 |
|
|
HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
|
| 245 |
|
|
HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
|
| 246 |
|
|
HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
|
| 247 |
|
|
HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
|
| 248 |
|
|
HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
|
| 249 |
|
|
HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
|
| 250 |
|
|
HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
|
| 251 |
|
|
HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
|
| 252 |
|
|
HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
|
| 253 |
|
|
HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
|
| 254 |
|
|
HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
|
| 255 |
|
|
HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
|
| 256 |
|
|
HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
|
| 257 |
|
|
HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
|
| 258 |
|
|
HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
|
| 259 |
|
|
HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
|
| 260 |
|
|
HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
|
| 261 |
225 |
jeremybenn |
HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
|
| 262 |
|
|
HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
|
| 263 |
|
|
HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
|
| 264 |
|
|
HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
|
| 265 |
|
|
HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
|
| 266 |
|
|
HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE),
|
| 267 |
24 |
jeremybenn |
};
|
| 268 |
|
|
static reloc_howto_type sparc_vtinherit_howto =
|
| 269 |
|
|
HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
|
| 270 |
|
|
static reloc_howto_type sparc_vtentry_howto =
|
| 271 |
|
|
HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
|
| 272 |
|
|
static reloc_howto_type sparc_rev32_howto =
|
| 273 |
|
|
HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
|
| 274 |
|
|
|
| 275 |
|
|
struct elf_reloc_map {
|
| 276 |
|
|
bfd_reloc_code_real_type bfd_reloc_val;
|
| 277 |
|
|
unsigned char elf_reloc_val;
|
| 278 |
|
|
};
|
| 279 |
|
|
|
| 280 |
|
|
static const struct elf_reloc_map sparc_reloc_map[] =
|
| 281 |
|
|
{
|
| 282 |
|
|
{ BFD_RELOC_NONE, R_SPARC_NONE, },
|
| 283 |
|
|
{ BFD_RELOC_16, R_SPARC_16, },
|
| 284 |
|
|
{ BFD_RELOC_16_PCREL, R_SPARC_DISP16 },
|
| 285 |
|
|
{ BFD_RELOC_8, R_SPARC_8 },
|
| 286 |
|
|
{ BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
|
| 287 |
|
|
{ BFD_RELOC_CTOR, R_SPARC_64 },
|
| 288 |
|
|
{ BFD_RELOC_32, R_SPARC_32 },
|
| 289 |
|
|
{ BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
|
| 290 |
|
|
{ BFD_RELOC_HI22, R_SPARC_HI22 },
|
| 291 |
|
|
{ BFD_RELOC_LO10, R_SPARC_LO10, },
|
| 292 |
|
|
{ BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
|
| 293 |
|
|
{ BFD_RELOC_64_PCREL, R_SPARC_DISP64 },
|
| 294 |
|
|
{ BFD_RELOC_SPARC22, R_SPARC_22 },
|
| 295 |
|
|
{ BFD_RELOC_SPARC13, R_SPARC_13 },
|
| 296 |
|
|
{ BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
|
| 297 |
|
|
{ BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
|
| 298 |
|
|
{ BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
|
| 299 |
|
|
{ BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
|
| 300 |
|
|
{ BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
|
| 301 |
|
|
{ BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
|
| 302 |
|
|
{ BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
|
| 303 |
|
|
{ BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
|
| 304 |
|
|
{ BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
|
| 305 |
|
|
{ BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
|
| 306 |
|
|
{ BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
|
| 307 |
|
|
{ BFD_RELOC_SPARC_UA16, R_SPARC_UA16 },
|
| 308 |
|
|
{ BFD_RELOC_SPARC_UA32, R_SPARC_UA32 },
|
| 309 |
|
|
{ BFD_RELOC_SPARC_UA64, R_SPARC_UA64 },
|
| 310 |
|
|
{ BFD_RELOC_SPARC_10, R_SPARC_10 },
|
| 311 |
|
|
{ BFD_RELOC_SPARC_11, R_SPARC_11 },
|
| 312 |
|
|
{ BFD_RELOC_SPARC_64, R_SPARC_64 },
|
| 313 |
|
|
{ BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 },
|
| 314 |
|
|
{ BFD_RELOC_SPARC_HH22, R_SPARC_HH22 },
|
| 315 |
|
|
{ BFD_RELOC_SPARC_HM10, R_SPARC_HM10 },
|
| 316 |
|
|
{ BFD_RELOC_SPARC_LM22, R_SPARC_LM22 },
|
| 317 |
|
|
{ BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 },
|
| 318 |
|
|
{ BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 },
|
| 319 |
|
|
{ BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 },
|
| 320 |
|
|
{ BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 },
|
| 321 |
|
|
{ BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 },
|
| 322 |
|
|
{ BFD_RELOC_SPARC_7, R_SPARC_7 },
|
| 323 |
|
|
{ BFD_RELOC_SPARC_5, R_SPARC_5 },
|
| 324 |
|
|
{ BFD_RELOC_SPARC_6, R_SPARC_6 },
|
| 325 |
|
|
{ BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64 },
|
| 326 |
|
|
{ BFD_RELOC_SPARC_TLS_GD_HI22, R_SPARC_TLS_GD_HI22 },
|
| 327 |
|
|
{ BFD_RELOC_SPARC_TLS_GD_LO10, R_SPARC_TLS_GD_LO10 },
|
| 328 |
|
|
{ BFD_RELOC_SPARC_TLS_GD_ADD, R_SPARC_TLS_GD_ADD },
|
| 329 |
|
|
{ BFD_RELOC_SPARC_TLS_GD_CALL, R_SPARC_TLS_GD_CALL },
|
| 330 |
|
|
{ BFD_RELOC_SPARC_TLS_LDM_HI22, R_SPARC_TLS_LDM_HI22 },
|
| 331 |
|
|
{ BFD_RELOC_SPARC_TLS_LDM_LO10, R_SPARC_TLS_LDM_LO10 },
|
| 332 |
|
|
{ BFD_RELOC_SPARC_TLS_LDM_ADD, R_SPARC_TLS_LDM_ADD },
|
| 333 |
|
|
{ BFD_RELOC_SPARC_TLS_LDM_CALL, R_SPARC_TLS_LDM_CALL },
|
| 334 |
|
|
{ BFD_RELOC_SPARC_TLS_LDO_HIX22, R_SPARC_TLS_LDO_HIX22 },
|
| 335 |
|
|
{ BFD_RELOC_SPARC_TLS_LDO_LOX10, R_SPARC_TLS_LDO_LOX10 },
|
| 336 |
|
|
{ BFD_RELOC_SPARC_TLS_LDO_ADD, R_SPARC_TLS_LDO_ADD },
|
| 337 |
|
|
{ BFD_RELOC_SPARC_TLS_IE_HI22, R_SPARC_TLS_IE_HI22 },
|
| 338 |
|
|
{ BFD_RELOC_SPARC_TLS_IE_LO10, R_SPARC_TLS_IE_LO10 },
|
| 339 |
|
|
{ BFD_RELOC_SPARC_TLS_IE_LD, R_SPARC_TLS_IE_LD },
|
| 340 |
|
|
{ BFD_RELOC_SPARC_TLS_IE_LDX, R_SPARC_TLS_IE_LDX },
|
| 341 |
|
|
{ BFD_RELOC_SPARC_TLS_IE_ADD, R_SPARC_TLS_IE_ADD },
|
| 342 |
|
|
{ BFD_RELOC_SPARC_TLS_LE_HIX22, R_SPARC_TLS_LE_HIX22 },
|
| 343 |
|
|
{ BFD_RELOC_SPARC_TLS_LE_LOX10, R_SPARC_TLS_LE_LOX10 },
|
| 344 |
|
|
{ BFD_RELOC_SPARC_TLS_DTPMOD32, R_SPARC_TLS_DTPMOD32 },
|
| 345 |
|
|
{ BFD_RELOC_SPARC_TLS_DTPMOD64, R_SPARC_TLS_DTPMOD64 },
|
| 346 |
|
|
{ BFD_RELOC_SPARC_TLS_DTPOFF32, R_SPARC_TLS_DTPOFF32 },
|
| 347 |
|
|
{ BFD_RELOC_SPARC_TLS_DTPOFF64, R_SPARC_TLS_DTPOFF64 },
|
| 348 |
|
|
{ BFD_RELOC_SPARC_TLS_TPOFF32, R_SPARC_TLS_TPOFF32 },
|
| 349 |
|
|
{ BFD_RELOC_SPARC_TLS_TPOFF64, R_SPARC_TLS_TPOFF64 },
|
| 350 |
|
|
{ BFD_RELOC_SPARC_PLT32, R_SPARC_PLT32 },
|
| 351 |
|
|
{ BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64 },
|
| 352 |
|
|
{ BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22 },
|
| 353 |
|
|
{ BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10 },
|
| 354 |
|
|
{ BFD_RELOC_SPARC_H44, R_SPARC_H44 },
|
| 355 |
|
|
{ BFD_RELOC_SPARC_M44, R_SPARC_M44 },
|
| 356 |
|
|
{ BFD_RELOC_SPARC_L44, R_SPARC_L44 },
|
| 357 |
225 |
jeremybenn |
{ BFD_RELOC_SPARC_GOTDATA_HIX22, R_SPARC_GOTDATA_HIX22 },
|
| 358 |
|
|
{ BFD_RELOC_SPARC_GOTDATA_LOX10, R_SPARC_GOTDATA_LOX10 },
|
| 359 |
|
|
{ BFD_RELOC_SPARC_GOTDATA_OP_HIX22, R_SPARC_GOTDATA_OP_HIX22 },
|
| 360 |
|
|
{ BFD_RELOC_SPARC_GOTDATA_OP_LOX10, R_SPARC_GOTDATA_OP_LOX10 },
|
| 361 |
|
|
{ BFD_RELOC_SPARC_GOTDATA_OP, R_SPARC_GOTDATA_OP },
|
| 362 |
24 |
jeremybenn |
{ BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER },
|
| 363 |
|
|
{ BFD_RELOC_VTABLE_INHERIT, R_SPARC_GNU_VTINHERIT },
|
| 364 |
|
|
{ BFD_RELOC_VTABLE_ENTRY, R_SPARC_GNU_VTENTRY },
|
| 365 |
|
|
{ BFD_RELOC_SPARC_REV32, R_SPARC_REV32 },
|
| 366 |
|
|
};
|
| 367 |
|
|
|
| 368 |
|
|
reloc_howto_type *
|
| 369 |
|
|
_bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
| 370 |
|
|
bfd_reloc_code_real_type code)
|
| 371 |
|
|
{
|
| 372 |
|
|
unsigned int i;
|
| 373 |
|
|
|
| 374 |
|
|
switch (code)
|
| 375 |
|
|
{
|
| 376 |
|
|
case BFD_RELOC_VTABLE_INHERIT:
|
| 377 |
|
|
return &sparc_vtinherit_howto;
|
| 378 |
|
|
|
| 379 |
|
|
case BFD_RELOC_VTABLE_ENTRY:
|
| 380 |
|
|
return &sparc_vtentry_howto;
|
| 381 |
|
|
|
| 382 |
|
|
case BFD_RELOC_SPARC_REV32:
|
| 383 |
|
|
return &sparc_rev32_howto;
|
| 384 |
|
|
|
| 385 |
|
|
default:
|
| 386 |
|
|
for (i = 0;
|
| 387 |
|
|
i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map);
|
| 388 |
|
|
i++)
|
| 389 |
|
|
{
|
| 390 |
|
|
if (sparc_reloc_map[i].bfd_reloc_val == code)
|
| 391 |
|
|
return (_bfd_sparc_elf_howto_table
|
| 392 |
|
|
+ (int) sparc_reloc_map[i].elf_reloc_val);
|
| 393 |
|
|
}
|
| 394 |
|
|
}
|
| 395 |
|
|
bfd_set_error (bfd_error_bad_value);
|
| 396 |
|
|
return NULL;
|
| 397 |
|
|
}
|
| 398 |
|
|
|
| 399 |
|
|
reloc_howto_type *
|
| 400 |
|
|
_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
| 401 |
|
|
const char *r_name)
|
| 402 |
|
|
{
|
| 403 |
|
|
unsigned int i;
|
| 404 |
|
|
|
| 405 |
|
|
for (i = 0;
|
| 406 |
|
|
i < (sizeof (_bfd_sparc_elf_howto_table)
|
| 407 |
|
|
/ sizeof (_bfd_sparc_elf_howto_table[0]));
|
| 408 |
|
|
i++)
|
| 409 |
|
|
if (_bfd_sparc_elf_howto_table[i].name != NULL
|
| 410 |
|
|
&& strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
|
| 411 |
|
|
return &_bfd_sparc_elf_howto_table[i];
|
| 412 |
|
|
|
| 413 |
|
|
if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
|
| 414 |
|
|
return &sparc_vtinherit_howto;
|
| 415 |
|
|
if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
|
| 416 |
|
|
return &sparc_vtentry_howto;
|
| 417 |
|
|
if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
|
| 418 |
|
|
return &sparc_rev32_howto;
|
| 419 |
|
|
|
| 420 |
|
|
return NULL;
|
| 421 |
|
|
}
|
| 422 |
|
|
|
| 423 |
|
|
reloc_howto_type *
|
| 424 |
|
|
_bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
|
| 425 |
|
|
{
|
| 426 |
|
|
switch (r_type)
|
| 427 |
|
|
{
|
| 428 |
|
|
case R_SPARC_GNU_VTINHERIT:
|
| 429 |
|
|
return &sparc_vtinherit_howto;
|
| 430 |
|
|
|
| 431 |
|
|
case R_SPARC_GNU_VTENTRY:
|
| 432 |
|
|
return &sparc_vtentry_howto;
|
| 433 |
|
|
|
| 434 |
|
|
case R_SPARC_REV32:
|
| 435 |
|
|
return &sparc_rev32_howto;
|
| 436 |
|
|
|
| 437 |
|
|
default:
|
| 438 |
|
|
if (r_type >= (unsigned int) R_SPARC_max_std)
|
| 439 |
|
|
{
|
| 440 |
|
|
(*_bfd_error_handler) (_("invalid relocation type %d"),
|
| 441 |
|
|
(int) r_type);
|
| 442 |
|
|
r_type = R_SPARC_NONE;
|
| 443 |
|
|
}
|
| 444 |
|
|
return &_bfd_sparc_elf_howto_table[r_type];
|
| 445 |
|
|
}
|
| 446 |
|
|
}
|
| 447 |
|
|
|
| 448 |
|
|
/* Both 32-bit and 64-bit sparc encode this in an identical manner,
|
| 449 |
|
|
so just take advantage of that. */
|
| 450 |
|
|
#define SPARC_ELF_R_TYPE(r_info) \
|
| 451 |
|
|
((r_info) & 0xff)
|
| 452 |
|
|
|
| 453 |
|
|
void
|
| 454 |
|
|
_bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
|
| 455 |
|
|
Elf_Internal_Rela *dst)
|
| 456 |
|
|
{
|
| 457 |
|
|
unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
|
| 458 |
|
|
|
| 459 |
|
|
cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
|
| 460 |
|
|
}
|
| 461 |
|
|
|
| 462 |
|
|
|
| 463 |
|
|
/* The nop opcode we use. */
|
| 464 |
|
|
#define SPARC_NOP 0x01000000
|
| 465 |
|
|
|
| 466 |
|
|
#define SPARC_INSN_BYTES 4
|
| 467 |
|
|
|
| 468 |
|
|
/* The SPARC linker needs to keep track of the number of relocs that it
|
| 469 |
|
|
decides to copy as dynamic relocs in check_relocs for each symbol.
|
| 470 |
|
|
This is so that it can later discard them if they are found to be
|
| 471 |
|
|
unnecessary. We store the information in a field extending the
|
| 472 |
|
|
regular ELF linker hash table. */
|
| 473 |
|
|
|
| 474 |
|
|
struct _bfd_sparc_elf_dyn_relocs
|
| 475 |
|
|
{
|
| 476 |
|
|
struct _bfd_sparc_elf_dyn_relocs *next;
|
| 477 |
|
|
|
| 478 |
|
|
/* The input section of the reloc. */
|
| 479 |
|
|
asection *sec;
|
| 480 |
|
|
|
| 481 |
|
|
/* Total number of relocs copied for the input section. */
|
| 482 |
|
|
bfd_size_type count;
|
| 483 |
|
|
|
| 484 |
|
|
/* Number of pc-relative relocs copied for the input section. */
|
| 485 |
|
|
bfd_size_type pc_count;
|
| 486 |
|
|
};
|
| 487 |
|
|
|
| 488 |
|
|
/* SPARC ELF linker hash entry. */
|
| 489 |
|
|
|
| 490 |
|
|
struct _bfd_sparc_elf_link_hash_entry
|
| 491 |
|
|
{
|
| 492 |
|
|
struct elf_link_hash_entry elf;
|
| 493 |
|
|
|
| 494 |
|
|
/* Track dynamic relocs copied for this symbol. */
|
| 495 |
|
|
struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
|
| 496 |
|
|
|
| 497 |
|
|
#define GOT_UNKNOWN 0
|
| 498 |
|
|
#define GOT_NORMAL 1
|
| 499 |
|
|
#define GOT_TLS_GD 2
|
| 500 |
|
|
#define GOT_TLS_IE 3
|
| 501 |
|
|
unsigned char tls_type;
|
| 502 |
|
|
};
|
| 503 |
|
|
|
| 504 |
|
|
#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
|
| 505 |
|
|
|
| 506 |
|
|
struct _bfd_sparc_elf_obj_tdata
|
| 507 |
|
|
{
|
| 508 |
|
|
struct elf_obj_tdata root;
|
| 509 |
|
|
|
| 510 |
|
|
/* tls_type for each local got entry. */
|
| 511 |
|
|
char *local_got_tls_type;
|
| 512 |
|
|
|
| 513 |
|
|
/* TRUE if TLS GD relocs has been seen for this object. */
|
| 514 |
|
|
bfd_boolean has_tlsgd;
|
| 515 |
|
|
};
|
| 516 |
|
|
|
| 517 |
|
|
#define _bfd_sparc_elf_tdata(abfd) \
|
| 518 |
|
|
((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
|
| 519 |
|
|
|
| 520 |
|
|
#define _bfd_sparc_elf_local_got_tls_type(abfd) \
|
| 521 |
|
|
(_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
|
| 522 |
|
|
|
| 523 |
|
|
#define is_sparc_elf(bfd) \
|
| 524 |
|
|
(bfd_get_flavour (bfd) == bfd_target_elf_flavour \
|
| 525 |
|
|
&& elf_tdata (bfd) != NULL \
|
| 526 |
|
|
&& elf_object_id (bfd) == SPARC_ELF_TDATA)
|
| 527 |
|
|
|
| 528 |
|
|
bfd_boolean
|
| 529 |
|
|
_bfd_sparc_elf_mkobject (bfd *abfd)
|
| 530 |
|
|
{
|
| 531 |
|
|
return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
|
| 532 |
|
|
SPARC_ELF_TDATA);
|
| 533 |
|
|
}
|
| 534 |
|
|
|
| 535 |
|
|
static void
|
| 536 |
|
|
sparc_put_word_32 (bfd *bfd, bfd_vma val, void *ptr)
|
| 537 |
|
|
{
|
| 538 |
|
|
bfd_put_32 (bfd, val, ptr);
|
| 539 |
|
|
}
|
| 540 |
|
|
|
| 541 |
|
|
static void
|
| 542 |
|
|
sparc_put_word_64 (bfd *bfd, bfd_vma val, void *ptr)
|
| 543 |
|
|
{
|
| 544 |
|
|
bfd_put_64 (bfd, val, ptr);
|
| 545 |
|
|
}
|
| 546 |
|
|
|
| 547 |
|
|
static void
|
| 548 |
|
|
sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
|
| 549 |
|
|
{
|
| 550 |
|
|
const struct elf_backend_data *bed;
|
| 551 |
|
|
bfd_byte *loc;
|
| 552 |
|
|
|
| 553 |
|
|
bed = get_elf_backend_data (abfd);
|
| 554 |
|
|
loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
|
| 555 |
|
|
bed->s->swap_reloca_out (abfd, rel, loc);
|
| 556 |
|
|
}
|
| 557 |
|
|
|
| 558 |
|
|
static bfd_vma
|
| 559 |
|
|
sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
|
| 560 |
|
|
bfd_vma index ATTRIBUTE_UNUSED,
|
| 561 |
|
|
bfd_vma type ATTRIBUTE_UNUSED)
|
| 562 |
|
|
{
|
| 563 |
|
|
return ELF64_R_INFO (index,
|
| 564 |
|
|
(in_rel ?
|
| 565 |
|
|
ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
|
| 566 |
|
|
type) : type));
|
| 567 |
|
|
}
|
| 568 |
|
|
|
| 569 |
|
|
static bfd_vma
|
| 570 |
|
|
sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
|
| 571 |
|
|
bfd_vma index, bfd_vma type)
|
| 572 |
|
|
{
|
| 573 |
|
|
return ELF32_R_INFO (index, type);
|
| 574 |
|
|
}
|
| 575 |
|
|
|
| 576 |
|
|
static bfd_vma
|
| 577 |
|
|
sparc_elf_r_symndx_64 (bfd_vma r_info)
|
| 578 |
|
|
{
|
| 579 |
|
|
bfd_vma r_symndx = ELF32_R_SYM (r_info);
|
| 580 |
|
|
return (r_symndx >> 24);
|
| 581 |
|
|
}
|
| 582 |
|
|
|
| 583 |
|
|
static bfd_vma
|
| 584 |
|
|
sparc_elf_r_symndx_32 (bfd_vma r_info)
|
| 585 |
|
|
{
|
| 586 |
|
|
return ELF32_R_SYM (r_info);
|
| 587 |
|
|
}
|
| 588 |
|
|
|
| 589 |
|
|
/* PLT/GOT stuff */
|
| 590 |
|
|
|
| 591 |
|
|
#define PLT32_ENTRY_SIZE 12
|
| 592 |
|
|
#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
|
| 593 |
|
|
|
| 594 |
|
|
/* The first four entries in a 32-bit procedure linkage table are reserved,
|
| 595 |
|
|
and the initial contents are unimportant (we zero them out).
|
| 596 |
|
|
Subsequent entries look like this. See the SVR4 ABI SPARC
|
| 597 |
|
|
supplement to see how this works. */
|
| 598 |
|
|
|
| 599 |
|
|
/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
|
| 600 |
|
|
#define PLT32_ENTRY_WORD0 0x03000000
|
| 601 |
|
|
/* b,a .plt0. We fill in the offset later. */
|
| 602 |
|
|
#define PLT32_ENTRY_WORD1 0x30800000
|
| 603 |
|
|
/* nop. */
|
| 604 |
|
|
#define PLT32_ENTRY_WORD2 SPARC_NOP
|
| 605 |
|
|
|
| 606 |
|
|
static int
|
| 607 |
|
|
sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
|
| 608 |
|
|
bfd_vma max ATTRIBUTE_UNUSED,
|
| 609 |
|
|
bfd_vma *r_offset)
|
| 610 |
|
|
{
|
| 611 |
|
|
bfd_put_32 (output_bfd,
|
| 612 |
|
|
PLT32_ENTRY_WORD0 + offset,
|
| 613 |
|
|
splt->contents + offset);
|
| 614 |
|
|
bfd_put_32 (output_bfd,
|
| 615 |
|
|
(PLT32_ENTRY_WORD1
|
| 616 |
|
|
+ (((- (offset + 4)) >> 2) & 0x3fffff)),
|
| 617 |
|
|
splt->contents + offset + 4);
|
| 618 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
|
| 619 |
|
|
splt->contents + offset + 8);
|
| 620 |
|
|
|
| 621 |
|
|
*r_offset = offset;
|
| 622 |
|
|
|
| 623 |
|
|
return offset / PLT32_ENTRY_SIZE - 4;
|
| 624 |
|
|
}
|
| 625 |
|
|
|
| 626 |
|
|
/* Both the headers and the entries are icache aligned. */
|
| 627 |
|
|
#define PLT64_ENTRY_SIZE 32
|
| 628 |
|
|
#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
|
| 629 |
|
|
#define PLT64_LARGE_THRESHOLD 32768
|
| 630 |
|
|
|
| 631 |
|
|
static int
|
| 632 |
|
|
sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
|
| 633 |
|
|
bfd_vma max, bfd_vma *r_offset)
|
| 634 |
|
|
{
|
| 635 |
|
|
unsigned char *entry = splt->contents + offset;
|
| 636 |
|
|
const unsigned int nop = SPARC_NOP;
|
| 637 |
|
|
int index;
|
| 638 |
|
|
|
| 639 |
|
|
if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
|
| 640 |
|
|
{
|
| 641 |
|
|
unsigned int sethi, ba;
|
| 642 |
|
|
|
| 643 |
|
|
*r_offset = offset;
|
| 644 |
|
|
|
| 645 |
|
|
index = (offset / PLT64_ENTRY_SIZE);
|
| 646 |
|
|
|
| 647 |
|
|
sethi = 0x03000000 | (index * PLT64_ENTRY_SIZE);
|
| 648 |
|
|
ba = 0x30680000
|
| 649 |
|
|
| (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
|
| 650 |
|
|
|
| 651 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
|
| 652 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
|
| 653 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
|
| 654 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
|
| 655 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
|
| 656 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
|
| 657 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
|
| 658 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
|
| 659 |
|
|
}
|
| 660 |
|
|
else
|
| 661 |
|
|
{
|
| 662 |
|
|
unsigned char *ptr;
|
| 663 |
|
|
unsigned int ldx;
|
| 664 |
|
|
int block, last_block, ofs, last_ofs, chunks_this_block;
|
| 665 |
|
|
const int insn_chunk_size = (6 * 4);
|
| 666 |
|
|
const int ptr_chunk_size = (1 * 8);
|
| 667 |
|
|
const int entries_per_block = 160;
|
| 668 |
|
|
const int block_size = entries_per_block * (insn_chunk_size
|
| 669 |
|
|
+ ptr_chunk_size);
|
| 670 |
|
|
|
| 671 |
|
|
/* Entries 32768 and higher are grouped into blocks of 160.
|
| 672 |
|
|
The blocks are further subdivided into 160 sequences of
|
| 673 |
|
|
6 instructions and 160 pointers. If a block does not require
|
| 674 |
|
|
the full 160 entries, let's say it requires N, then there
|
| 675 |
|
|
will be N sequences of 6 instructions and N pointers. */
|
| 676 |
|
|
|
| 677 |
|
|
offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
|
| 678 |
|
|
max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
|
| 679 |
|
|
|
| 680 |
|
|
block = offset / block_size;
|
| 681 |
|
|
last_block = max / block_size;
|
| 682 |
|
|
if (block != last_block)
|
| 683 |
|
|
{
|
| 684 |
|
|
chunks_this_block = 160;
|
| 685 |
|
|
}
|
| 686 |
|
|
else
|
| 687 |
|
|
{
|
| 688 |
|
|
last_ofs = max % block_size;
|
| 689 |
|
|
chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
|
| 690 |
|
|
}
|
| 691 |
|
|
|
| 692 |
|
|
ofs = offset % block_size;
|
| 693 |
|
|
|
| 694 |
|
|
index = (PLT64_LARGE_THRESHOLD +
|
| 695 |
|
|
(block * 160) +
|
| 696 |
|
|
(ofs / insn_chunk_size));
|
| 697 |
|
|
|
| 698 |
|
|
ptr = splt->contents
|
| 699 |
|
|
+ (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
|
| 700 |
|
|
+ (block * block_size)
|
| 701 |
|
|
+ (chunks_this_block * insn_chunk_size)
|
| 702 |
|
|
+ (ofs / insn_chunk_size) * ptr_chunk_size;
|
| 703 |
|
|
|
| 704 |
|
|
*r_offset = (bfd_vma) (ptr - splt->contents);
|
| 705 |
|
|
|
| 706 |
|
|
ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
|
| 707 |
|
|
|
| 708 |
|
|
/* mov %o7,%g5
|
| 709 |
|
|
call .+8
|
| 710 |
|
|
nop
|
| 711 |
|
|
ldx [%o7+P],%g1
|
| 712 |
|
|
jmpl %o7+%g1,%g1
|
| 713 |
|
|
mov %g5,%o7 */
|
| 714 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
|
| 715 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
|
| 716 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
|
| 717 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
|
| 718 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
|
| 719 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
|
| 720 |
|
|
|
| 721 |
|
|
bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
|
| 722 |
|
|
}
|
| 723 |
|
|
|
| 724 |
|
|
return index - 4;
|
| 725 |
|
|
}
|
| 726 |
|
|
|
| 727 |
|
|
/* The format of the first PLT entry in a VxWorks executable. */
|
| 728 |
|
|
static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
|
| 729 |
|
|
{
|
| 730 |
|
|
0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
|
| 731 |
|
|
0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
|
| 732 |
|
|
0xc4008000, /* ld [ %g2 ], %g2 */
|
| 733 |
|
|
0x81c08000, /* jmp %g2 */
|
| 734 |
|
|
0x01000000 /* nop */
|
| 735 |
|
|
};
|
| 736 |
|
|
|
| 737 |
|
|
/* The format of subsequent PLT entries. */
|
| 738 |
|
|
static const bfd_vma sparc_vxworks_exec_plt_entry[] =
|
| 739 |
|
|
{
|
| 740 |
|
|
0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
|
| 741 |
|
|
0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
|
| 742 |
|
|
0xc2004000, /* ld [ %g1 ], %g1 */
|
| 743 |
|
|
0x81c04000, /* jmp %g1 */
|
| 744 |
|
|
0x01000000, /* nop */
|
| 745 |
|
|
0x03000000, /* sethi %hi(f@pltindex), %g1 */
|
| 746 |
|
|
0x10800000, /* b _PLT_resolve */
|
| 747 |
|
|
0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
|
| 748 |
|
|
};
|
| 749 |
|
|
|
| 750 |
|
|
/* The format of the first PLT entry in a VxWorks shared object. */
|
| 751 |
|
|
static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
|
| 752 |
|
|
{
|
| 753 |
|
|
0xc405e008, /* ld [ %l7 + 8 ], %g2 */
|
| 754 |
|
|
0x81c08000, /* jmp %g2 */
|
| 755 |
|
|
0x01000000 /* nop */
|
| 756 |
|
|
};
|
| 757 |
|
|
|
| 758 |
|
|
/* The format of subsequent PLT entries. */
|
| 759 |
|
|
static const bfd_vma sparc_vxworks_shared_plt_entry[] =
|
| 760 |
|
|
{
|
| 761 |
|
|
0x03000000, /* sethi %hi(f@got), %g1 */
|
| 762 |
|
|
0x82106000, /* or %g1, %lo(f@got), %g1 */
|
| 763 |
|
|
0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
|
| 764 |
|
|
0x81c04000, /* jmp %g1 */
|
| 765 |
|
|
0x01000000, /* nop */
|
| 766 |
|
|
0x03000000, /* sethi %hi(f@pltindex), %g1 */
|
| 767 |
|
|
0x10800000, /* b _PLT_resolve */
|
| 768 |
|
|
0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
|
| 769 |
|
|
};
|
| 770 |
|
|
|
| 771 |
|
|
#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
|
| 772 |
|
|
htab->put_word(bfd, val, ptr)
|
| 773 |
|
|
|
| 774 |
|
|
#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
|
| 775 |
|
|
htab->r_info(in_rel, index, type)
|
| 776 |
|
|
|
| 777 |
|
|
#define SPARC_ELF_R_SYMNDX(htab, r_info) \
|
| 778 |
|
|
htab->r_symndx(r_info)
|
| 779 |
|
|
|
| 780 |
|
|
#define SPARC_ELF_WORD_BYTES(htab) \
|
| 781 |
|
|
htab->bytes_per_word
|
| 782 |
|
|
|
| 783 |
|
|
#define SPARC_ELF_RELA_BYTES(htab) \
|
| 784 |
|
|
htab->bytes_per_rela
|
| 785 |
|
|
|
| 786 |
|
|
#define SPARC_ELF_DTPOFF_RELOC(htab) \
|
| 787 |
|
|
htab->dtpoff_reloc
|
| 788 |
|
|
|
| 789 |
|
|
#define SPARC_ELF_DTPMOD_RELOC(htab) \
|
| 790 |
|
|
htab->dtpmod_reloc
|
| 791 |
|
|
|
| 792 |
|
|
#define SPARC_ELF_TPOFF_RELOC(htab) \
|
| 793 |
|
|
htab->tpoff_reloc
|
| 794 |
|
|
|
| 795 |
|
|
#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
|
| 796 |
|
|
htab->build_plt_entry (obfd, splt, off, max, r_off)
|
| 797 |
|
|
|
| 798 |
|
|
/* Create an entry in an SPARC ELF linker hash table. */
|
| 799 |
|
|
|
| 800 |
|
|
static struct bfd_hash_entry *
|
| 801 |
|
|
link_hash_newfunc (struct bfd_hash_entry *entry,
|
| 802 |
|
|
struct bfd_hash_table *table, const char *string)
|
| 803 |
|
|
{
|
| 804 |
|
|
/* Allocate the structure if it has not already been allocated by a
|
| 805 |
|
|
subclass. */
|
| 806 |
|
|
if (entry == NULL)
|
| 807 |
|
|
{
|
| 808 |
|
|
entry = bfd_hash_allocate (table,
|
| 809 |
|
|
sizeof (struct _bfd_sparc_elf_link_hash_entry));
|
| 810 |
|
|
if (entry == NULL)
|
| 811 |
|
|
return entry;
|
| 812 |
|
|
}
|
| 813 |
|
|
|
| 814 |
|
|
/* Call the allocation method of the superclass. */
|
| 815 |
|
|
entry = _bfd_elf_link_hash_newfunc (entry, table, string);
|
| 816 |
|
|
if (entry != NULL)
|
| 817 |
|
|
{
|
| 818 |
|
|
struct _bfd_sparc_elf_link_hash_entry *eh;
|
| 819 |
|
|
|
| 820 |
|
|
eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
|
| 821 |
|
|
eh->dyn_relocs = NULL;
|
| 822 |
|
|
eh->tls_type = GOT_UNKNOWN;
|
| 823 |
|
|
}
|
| 824 |
|
|
|
| 825 |
|
|
return entry;
|
| 826 |
|
|
}
|
| 827 |
|
|
|
| 828 |
|
|
/* The name of the dynamic interpreter. This is put in the .interp
|
| 829 |
|
|
section. */
|
| 830 |
|
|
|
| 831 |
|
|
#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
|
| 832 |
|
|
#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
|
| 833 |
|
|
|
| 834 |
|
|
/* Create a SPARC ELF linker hash table. */
|
| 835 |
|
|
|
| 836 |
|
|
struct bfd_link_hash_table *
|
| 837 |
|
|
_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
|
| 838 |
|
|
{
|
| 839 |
|
|
struct _bfd_sparc_elf_link_hash_table *ret;
|
| 840 |
|
|
bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
|
| 841 |
|
|
|
| 842 |
|
|
ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
|
| 843 |
|
|
if (ret == NULL)
|
| 844 |
|
|
return NULL;
|
| 845 |
|
|
|
| 846 |
|
|
if (ABI_64_P (abfd))
|
| 847 |
|
|
{
|
| 848 |
|
|
ret->put_word = sparc_put_word_64;
|
| 849 |
|
|
ret->r_info = sparc_elf_r_info_64;
|
| 850 |
|
|
ret->r_symndx = sparc_elf_r_symndx_64;
|
| 851 |
|
|
ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
|
| 852 |
|
|
ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
|
| 853 |
|
|
ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
|
| 854 |
|
|
ret->word_align_power = 3;
|
| 855 |
|
|
ret->align_power_max = 4;
|
| 856 |
|
|
ret->bytes_per_word = 8;
|
| 857 |
|
|
ret->bytes_per_rela = sizeof (Elf64_External_Rela);
|
| 858 |
|
|
ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
|
| 859 |
|
|
ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
|
| 860 |
|
|
}
|
| 861 |
|
|
else
|
| 862 |
|
|
{
|
| 863 |
|
|
ret->put_word = sparc_put_word_32;
|
| 864 |
|
|
ret->r_info = sparc_elf_r_info_32;
|
| 865 |
|
|
ret->r_symndx = sparc_elf_r_symndx_32;
|
| 866 |
|
|
ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
|
| 867 |
|
|
ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
|
| 868 |
|
|
ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
|
| 869 |
|
|
ret->word_align_power = 2;
|
| 870 |
|
|
ret->align_power_max = 3;
|
| 871 |
|
|
ret->bytes_per_word = 4;
|
| 872 |
|
|
ret->bytes_per_rela = sizeof (Elf32_External_Rela);
|
| 873 |
|
|
ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
|
| 874 |
|
|
ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
|
| 875 |
|
|
}
|
| 876 |
|
|
|
| 877 |
|
|
if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
|
| 878 |
|
|
sizeof (struct _bfd_sparc_elf_link_hash_entry)))
|
| 879 |
|
|
{
|
| 880 |
|
|
free (ret);
|
| 881 |
|
|
return NULL;
|
| 882 |
|
|
}
|
| 883 |
|
|
|
| 884 |
|
|
return &ret->elf.root;
|
| 885 |
|
|
}
|
| 886 |
|
|
|
| 887 |
|
|
/* Create .got and .rela.got sections in DYNOBJ, and set up
|
| 888 |
|
|
shortcuts to them in our hash table. */
|
| 889 |
|
|
|
| 890 |
|
|
static bfd_boolean
|
| 891 |
|
|
create_got_section (bfd *dynobj, struct bfd_link_info *info)
|
| 892 |
|
|
{
|
| 893 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 894 |
|
|
|
| 895 |
|
|
if (! _bfd_elf_create_got_section (dynobj, info))
|
| 896 |
|
|
return FALSE;
|
| 897 |
|
|
|
| 898 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 899 |
|
|
htab->sgot = bfd_get_section_by_name (dynobj, ".got");
|
| 900 |
|
|
BFD_ASSERT (htab->sgot != NULL);
|
| 901 |
|
|
|
| 902 |
225 |
jeremybenn |
htab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
| 903 |
24 |
jeremybenn |
if (htab->srelgot == NULL
|
| 904 |
|
|
|| ! bfd_set_section_alignment (dynobj, htab->srelgot,
|
| 905 |
|
|
htab->word_align_power))
|
| 906 |
|
|
return FALSE;
|
| 907 |
|
|
|
| 908 |
|
|
if (htab->is_vxworks)
|
| 909 |
|
|
{
|
| 910 |
|
|
htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
|
| 911 |
|
|
if (!htab->sgotplt)
|
| 912 |
|
|
return FALSE;
|
| 913 |
|
|
}
|
| 914 |
|
|
|
| 915 |
|
|
return TRUE;
|
| 916 |
|
|
}
|
| 917 |
|
|
|
| 918 |
|
|
/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
|
| 919 |
|
|
.rela.bss sections in DYNOBJ, and set up shortcuts to them in our
|
| 920 |
|
|
hash table. */
|
| 921 |
|
|
|
| 922 |
|
|
bfd_boolean
|
| 923 |
|
|
_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
|
| 924 |
|
|
struct bfd_link_info *info)
|
| 925 |
|
|
{
|
| 926 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 927 |
|
|
|
| 928 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 929 |
|
|
if (!htab->sgot && !create_got_section (dynobj, info))
|
| 930 |
|
|
return FALSE;
|
| 931 |
|
|
|
| 932 |
|
|
if (!_bfd_elf_create_dynamic_sections (dynobj, info))
|
| 933 |
|
|
return FALSE;
|
| 934 |
|
|
|
| 935 |
|
|
htab->splt = bfd_get_section_by_name (dynobj, ".plt");
|
| 936 |
|
|
htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
|
| 937 |
|
|
htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
|
| 938 |
|
|
if (!info->shared)
|
| 939 |
|
|
htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
|
| 940 |
|
|
|
| 941 |
|
|
if (htab->is_vxworks)
|
| 942 |
|
|
{
|
| 943 |
|
|
if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
|
| 944 |
|
|
return FALSE;
|
| 945 |
|
|
if (info->shared)
|
| 946 |
|
|
{
|
| 947 |
|
|
htab->plt_header_size
|
| 948 |
|
|
= 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
|
| 949 |
|
|
htab->plt_entry_size
|
| 950 |
|
|
= 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
|
| 951 |
|
|
}
|
| 952 |
|
|
else
|
| 953 |
|
|
{
|
| 954 |
|
|
htab->plt_header_size
|
| 955 |
|
|
= 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
|
| 956 |
|
|
htab->plt_entry_size
|
| 957 |
|
|
= 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
|
| 958 |
|
|
}
|
| 959 |
|
|
}
|
| 960 |
|
|
else
|
| 961 |
|
|
{
|
| 962 |
|
|
if (ABI_64_P (dynobj))
|
| 963 |
|
|
{
|
| 964 |
|
|
htab->build_plt_entry = sparc64_plt_entry_build;
|
| 965 |
|
|
htab->plt_header_size = PLT64_HEADER_SIZE;
|
| 966 |
|
|
htab->plt_entry_size = PLT64_ENTRY_SIZE;
|
| 967 |
|
|
}
|
| 968 |
|
|
else
|
| 969 |
|
|
{
|
| 970 |
|
|
htab->build_plt_entry = sparc32_plt_entry_build;
|
| 971 |
|
|
htab->plt_header_size = PLT32_HEADER_SIZE;
|
| 972 |
|
|
htab->plt_entry_size = PLT32_ENTRY_SIZE;
|
| 973 |
|
|
}
|
| 974 |
|
|
}
|
| 975 |
|
|
|
| 976 |
|
|
if (!htab->splt || !htab->srelplt || !htab->sdynbss
|
| 977 |
|
|
|| (!info->shared && !htab->srelbss))
|
| 978 |
|
|
abort ();
|
| 979 |
|
|
|
| 980 |
|
|
return TRUE;
|
| 981 |
|
|
}
|
| 982 |
|
|
|
| 983 |
|
|
/* Copy the extra info we tack onto an elf_link_hash_entry. */
|
| 984 |
|
|
|
| 985 |
|
|
void
|
| 986 |
|
|
_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
|
| 987 |
|
|
struct elf_link_hash_entry *dir,
|
| 988 |
|
|
struct elf_link_hash_entry *ind)
|
| 989 |
|
|
{
|
| 990 |
|
|
struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
|
| 991 |
|
|
|
| 992 |
|
|
edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
|
| 993 |
|
|
eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
|
| 994 |
|
|
|
| 995 |
|
|
if (eind->dyn_relocs != NULL)
|
| 996 |
|
|
{
|
| 997 |
|
|
if (edir->dyn_relocs != NULL)
|
| 998 |
|
|
{
|
| 999 |
|
|
struct _bfd_sparc_elf_dyn_relocs **pp;
|
| 1000 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
| 1001 |
|
|
|
| 1002 |
|
|
/* Add reloc counts against the indirect sym to the direct sym
|
| 1003 |
|
|
list. Merge any entries against the same section. */
|
| 1004 |
|
|
for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
|
| 1005 |
|
|
{
|
| 1006 |
|
|
struct _bfd_sparc_elf_dyn_relocs *q;
|
| 1007 |
|
|
|
| 1008 |
|
|
for (q = edir->dyn_relocs; q != NULL; q = q->next)
|
| 1009 |
|
|
if (q->sec == p->sec)
|
| 1010 |
|
|
{
|
| 1011 |
|
|
q->pc_count += p->pc_count;
|
| 1012 |
|
|
q->count += p->count;
|
| 1013 |
|
|
*pp = p->next;
|
| 1014 |
|
|
break;
|
| 1015 |
|
|
}
|
| 1016 |
|
|
if (q == NULL)
|
| 1017 |
|
|
pp = &p->next;
|
| 1018 |
|
|
}
|
| 1019 |
|
|
*pp = edir->dyn_relocs;
|
| 1020 |
|
|
}
|
| 1021 |
|
|
|
| 1022 |
|
|
edir->dyn_relocs = eind->dyn_relocs;
|
| 1023 |
|
|
eind->dyn_relocs = NULL;
|
| 1024 |
|
|
}
|
| 1025 |
|
|
|
| 1026 |
|
|
if (ind->root.type == bfd_link_hash_indirect
|
| 1027 |
|
|
&& dir->got.refcount <= 0)
|
| 1028 |
|
|
{
|
| 1029 |
|
|
edir->tls_type = eind->tls_type;
|
| 1030 |
|
|
eind->tls_type = GOT_UNKNOWN;
|
| 1031 |
|
|
}
|
| 1032 |
|
|
_bfd_elf_link_hash_copy_indirect (info, dir, ind);
|
| 1033 |
|
|
}
|
| 1034 |
|
|
|
| 1035 |
|
|
static int
|
| 1036 |
|
|
sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
|
| 1037 |
|
|
int r_type, int is_local)
|
| 1038 |
|
|
{
|
| 1039 |
|
|
if (! ABI_64_P (abfd)
|
| 1040 |
|
|
&& r_type == R_SPARC_TLS_GD_HI22
|
| 1041 |
|
|
&& ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
|
| 1042 |
|
|
r_type = R_SPARC_REV32;
|
| 1043 |
|
|
|
| 1044 |
|
|
if (info->shared)
|
| 1045 |
|
|
return r_type;
|
| 1046 |
|
|
|
| 1047 |
|
|
switch (r_type)
|
| 1048 |
|
|
{
|
| 1049 |
|
|
case R_SPARC_TLS_GD_HI22:
|
| 1050 |
|
|
if (is_local)
|
| 1051 |
|
|
return R_SPARC_TLS_LE_HIX22;
|
| 1052 |
|
|
return R_SPARC_TLS_IE_HI22;
|
| 1053 |
|
|
case R_SPARC_TLS_GD_LO10:
|
| 1054 |
|
|
if (is_local)
|
| 1055 |
|
|
return R_SPARC_TLS_LE_LOX10;
|
| 1056 |
|
|
return R_SPARC_TLS_IE_LO10;
|
| 1057 |
|
|
case R_SPARC_TLS_IE_HI22:
|
| 1058 |
|
|
if (is_local)
|
| 1059 |
|
|
return R_SPARC_TLS_LE_HIX22;
|
| 1060 |
|
|
return r_type;
|
| 1061 |
|
|
case R_SPARC_TLS_IE_LO10:
|
| 1062 |
|
|
if (is_local)
|
| 1063 |
|
|
return R_SPARC_TLS_LE_LOX10;
|
| 1064 |
|
|
return r_type;
|
| 1065 |
|
|
case R_SPARC_TLS_LDM_HI22:
|
| 1066 |
|
|
return R_SPARC_TLS_LE_HIX22;
|
| 1067 |
|
|
case R_SPARC_TLS_LDM_LO10:
|
| 1068 |
|
|
return R_SPARC_TLS_LE_LOX10;
|
| 1069 |
|
|
}
|
| 1070 |
|
|
|
| 1071 |
|
|
return r_type;
|
| 1072 |
|
|
}
|
| 1073 |
|
|
|
| 1074 |
|
|
/* Look through the relocs for a section during the first phase, and
|
| 1075 |
|
|
allocate space in the global offset table or procedure linkage
|
| 1076 |
|
|
table. */
|
| 1077 |
|
|
|
| 1078 |
|
|
bfd_boolean
|
| 1079 |
|
|
_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
|
| 1080 |
|
|
asection *sec, const Elf_Internal_Rela *relocs)
|
| 1081 |
|
|
{
|
| 1082 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 1083 |
|
|
Elf_Internal_Shdr *symtab_hdr;
|
| 1084 |
|
|
struct elf_link_hash_entry **sym_hashes;
|
| 1085 |
|
|
bfd_vma *local_got_offsets;
|
| 1086 |
|
|
const Elf_Internal_Rela *rel;
|
| 1087 |
|
|
const Elf_Internal_Rela *rel_end;
|
| 1088 |
|
|
asection *sreloc;
|
| 1089 |
|
|
int num_relocs;
|
| 1090 |
|
|
bfd_boolean checked_tlsgd = FALSE;
|
| 1091 |
|
|
|
| 1092 |
|
|
if (info->relocatable)
|
| 1093 |
|
|
return TRUE;
|
| 1094 |
|
|
|
| 1095 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 1096 |
|
|
symtab_hdr = &elf_symtab_hdr (abfd);
|
| 1097 |
|
|
sym_hashes = elf_sym_hashes (abfd);
|
| 1098 |
|
|
local_got_offsets = elf_local_got_offsets (abfd);
|
| 1099 |
|
|
|
| 1100 |
|
|
sreloc = NULL;
|
| 1101 |
|
|
|
| 1102 |
|
|
if (ABI_64_P (abfd))
|
| 1103 |
|
|
num_relocs = NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr);
|
| 1104 |
|
|
else
|
| 1105 |
|
|
num_relocs = sec->reloc_count;
|
| 1106 |
|
|
|
| 1107 |
|
|
BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
|
| 1108 |
|
|
|
| 1109 |
|
|
rel_end = relocs + num_relocs;
|
| 1110 |
|
|
for (rel = relocs; rel < rel_end; rel++)
|
| 1111 |
|
|
{
|
| 1112 |
|
|
unsigned int r_type;
|
| 1113 |
|
|
unsigned long r_symndx;
|
| 1114 |
|
|
struct elf_link_hash_entry *h;
|
| 1115 |
|
|
|
| 1116 |
|
|
r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
|
| 1117 |
|
|
r_type = SPARC_ELF_R_TYPE (rel->r_info);
|
| 1118 |
|
|
|
| 1119 |
|
|
if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
|
| 1120 |
|
|
{
|
| 1121 |
|
|
(*_bfd_error_handler) (_("%B: bad symbol index: %d"),
|
| 1122 |
|
|
abfd, r_symndx);
|
| 1123 |
|
|
return FALSE;
|
| 1124 |
|
|
}
|
| 1125 |
|
|
|
| 1126 |
|
|
if (r_symndx < symtab_hdr->sh_info)
|
| 1127 |
|
|
h = NULL;
|
| 1128 |
|
|
else
|
| 1129 |
|
|
{
|
| 1130 |
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
| 1131 |
|
|
while (h->root.type == bfd_link_hash_indirect
|
| 1132 |
|
|
|| h->root.type == bfd_link_hash_warning)
|
| 1133 |
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
| 1134 |
|
|
}
|
| 1135 |
|
|
|
| 1136 |
|
|
/* Compatibility with old R_SPARC_REV32 reloc conflicting
|
| 1137 |
|
|
with R_SPARC_TLS_GD_HI22. */
|
| 1138 |
|
|
if (! ABI_64_P (abfd) && ! checked_tlsgd)
|
| 1139 |
|
|
switch (r_type)
|
| 1140 |
|
|
{
|
| 1141 |
|
|
case R_SPARC_TLS_GD_HI22:
|
| 1142 |
|
|
{
|
| 1143 |
|
|
const Elf_Internal_Rela *relt;
|
| 1144 |
|
|
|
| 1145 |
|
|
for (relt = rel + 1; relt < rel_end; relt++)
|
| 1146 |
|
|
if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
|
| 1147 |
|
|
|| ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
|
| 1148 |
|
|
|| ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
|
| 1149 |
|
|
break;
|
| 1150 |
|
|
checked_tlsgd = TRUE;
|
| 1151 |
|
|
_bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
|
| 1152 |
|
|
}
|
| 1153 |
|
|
break;
|
| 1154 |
|
|
case R_SPARC_TLS_GD_LO10:
|
| 1155 |
|
|
case R_SPARC_TLS_GD_ADD:
|
| 1156 |
|
|
case R_SPARC_TLS_GD_CALL:
|
| 1157 |
|
|
checked_tlsgd = TRUE;
|
| 1158 |
|
|
_bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
|
| 1159 |
|
|
break;
|
| 1160 |
|
|
}
|
| 1161 |
|
|
|
| 1162 |
|
|
r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
|
| 1163 |
|
|
switch (r_type)
|
| 1164 |
|
|
{
|
| 1165 |
|
|
case R_SPARC_TLS_LDM_HI22:
|
| 1166 |
|
|
case R_SPARC_TLS_LDM_LO10:
|
| 1167 |
|
|
htab->tls_ldm_got.refcount += 1;
|
| 1168 |
|
|
break;
|
| 1169 |
|
|
|
| 1170 |
|
|
case R_SPARC_TLS_LE_HIX22:
|
| 1171 |
|
|
case R_SPARC_TLS_LE_LOX10:
|
| 1172 |
|
|
if (info->shared)
|
| 1173 |
|
|
goto r_sparc_plt32;
|
| 1174 |
|
|
break;
|
| 1175 |
|
|
|
| 1176 |
|
|
case R_SPARC_TLS_IE_HI22:
|
| 1177 |
|
|
case R_SPARC_TLS_IE_LO10:
|
| 1178 |
|
|
if (info->shared)
|
| 1179 |
|
|
info->flags |= DF_STATIC_TLS;
|
| 1180 |
|
|
/* Fall through */
|
| 1181 |
|
|
|
| 1182 |
|
|
case R_SPARC_GOT10:
|
| 1183 |
|
|
case R_SPARC_GOT13:
|
| 1184 |
|
|
case R_SPARC_GOT22:
|
| 1185 |
225 |
jeremybenn |
case R_SPARC_GOTDATA_HIX22:
|
| 1186 |
|
|
case R_SPARC_GOTDATA_LOX10:
|
| 1187 |
|
|
case R_SPARC_GOTDATA_OP_HIX22:
|
| 1188 |
|
|
case R_SPARC_GOTDATA_OP_LOX10:
|
| 1189 |
24 |
jeremybenn |
case R_SPARC_TLS_GD_HI22:
|
| 1190 |
|
|
case R_SPARC_TLS_GD_LO10:
|
| 1191 |
|
|
/* This symbol requires a global offset table entry. */
|
| 1192 |
|
|
{
|
| 1193 |
|
|
int tls_type, old_tls_type;
|
| 1194 |
|
|
|
| 1195 |
|
|
switch (r_type)
|
| 1196 |
|
|
{
|
| 1197 |
|
|
default:
|
| 1198 |
|
|
case R_SPARC_GOT10:
|
| 1199 |
|
|
case R_SPARC_GOT13:
|
| 1200 |
|
|
case R_SPARC_GOT22:
|
| 1201 |
225 |
jeremybenn |
case R_SPARC_GOTDATA_HIX22:
|
| 1202 |
|
|
case R_SPARC_GOTDATA_LOX10:
|
| 1203 |
|
|
case R_SPARC_GOTDATA_OP_HIX22:
|
| 1204 |
|
|
case R_SPARC_GOTDATA_OP_LOX10:
|
| 1205 |
24 |
jeremybenn |
tls_type = GOT_NORMAL;
|
| 1206 |
|
|
break;
|
| 1207 |
|
|
case R_SPARC_TLS_GD_HI22:
|
| 1208 |
|
|
case R_SPARC_TLS_GD_LO10:
|
| 1209 |
|
|
tls_type = GOT_TLS_GD;
|
| 1210 |
|
|
break;
|
| 1211 |
|
|
case R_SPARC_TLS_IE_HI22:
|
| 1212 |
|
|
case R_SPARC_TLS_IE_LO10:
|
| 1213 |
|
|
tls_type = GOT_TLS_IE;
|
| 1214 |
|
|
break;
|
| 1215 |
|
|
}
|
| 1216 |
|
|
|
| 1217 |
|
|
if (h != NULL)
|
| 1218 |
|
|
{
|
| 1219 |
|
|
h->got.refcount += 1;
|
| 1220 |
|
|
old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
| 1221 |
|
|
}
|
| 1222 |
|
|
else
|
| 1223 |
|
|
{
|
| 1224 |
|
|
bfd_signed_vma *local_got_refcounts;
|
| 1225 |
|
|
|
| 1226 |
|
|
/* This is a global offset table entry for a local symbol. */
|
| 1227 |
|
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
| 1228 |
|
|
if (local_got_refcounts == NULL)
|
| 1229 |
|
|
{
|
| 1230 |
|
|
bfd_size_type size;
|
| 1231 |
|
|
|
| 1232 |
|
|
size = symtab_hdr->sh_info;
|
| 1233 |
|
|
size *= (sizeof (bfd_signed_vma) + sizeof(char));
|
| 1234 |
|
|
local_got_refcounts = ((bfd_signed_vma *)
|
| 1235 |
|
|
bfd_zalloc (abfd, size));
|
| 1236 |
|
|
if (local_got_refcounts == NULL)
|
| 1237 |
|
|
return FALSE;
|
| 1238 |
|
|
elf_local_got_refcounts (abfd) = local_got_refcounts;
|
| 1239 |
|
|
_bfd_sparc_elf_local_got_tls_type (abfd)
|
| 1240 |
|
|
= (char *) (local_got_refcounts + symtab_hdr->sh_info);
|
| 1241 |
|
|
}
|
| 1242 |
|
|
local_got_refcounts[r_symndx] += 1;
|
| 1243 |
|
|
old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
|
| 1244 |
|
|
}
|
| 1245 |
|
|
|
| 1246 |
|
|
/* If a TLS symbol is accessed using IE at least once,
|
| 1247 |
|
|
there is no point to use dynamic model for it. */
|
| 1248 |
|
|
if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
|
| 1249 |
|
|
&& (old_tls_type != GOT_TLS_GD
|
| 1250 |
|
|
|| tls_type != GOT_TLS_IE))
|
| 1251 |
|
|
{
|
| 1252 |
|
|
if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
|
| 1253 |
|
|
tls_type = old_tls_type;
|
| 1254 |
|
|
else
|
| 1255 |
|
|
{
|
| 1256 |
|
|
(*_bfd_error_handler)
|
| 1257 |
|
|
(_("%B: `%s' accessed both as normal and thread local symbol"),
|
| 1258 |
|
|
abfd, h ? h->root.root.string : "<local>");
|
| 1259 |
|
|
return FALSE;
|
| 1260 |
|
|
}
|
| 1261 |
|
|
}
|
| 1262 |
|
|
|
| 1263 |
|
|
if (old_tls_type != tls_type)
|
| 1264 |
|
|
{
|
| 1265 |
|
|
if (h != NULL)
|
| 1266 |
|
|
_bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
|
| 1267 |
|
|
else
|
| 1268 |
|
|
_bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
|
| 1269 |
|
|
}
|
| 1270 |
|
|
}
|
| 1271 |
|
|
|
| 1272 |
|
|
if (htab->sgot == NULL)
|
| 1273 |
|
|
{
|
| 1274 |
|
|
if (htab->elf.dynobj == NULL)
|
| 1275 |
|
|
htab->elf.dynobj = abfd;
|
| 1276 |
|
|
if (!create_got_section (htab->elf.dynobj, info))
|
| 1277 |
|
|
return FALSE;
|
| 1278 |
|
|
}
|
| 1279 |
|
|
break;
|
| 1280 |
|
|
|
| 1281 |
|
|
case R_SPARC_TLS_GD_CALL:
|
| 1282 |
|
|
case R_SPARC_TLS_LDM_CALL:
|
| 1283 |
|
|
if (info->shared)
|
| 1284 |
|
|
{
|
| 1285 |
|
|
/* These are basically R_SPARC_TLS_WPLT30 relocs against
|
| 1286 |
|
|
__tls_get_addr. */
|
| 1287 |
|
|
struct bfd_link_hash_entry *bh = NULL;
|
| 1288 |
|
|
if (! _bfd_generic_link_add_one_symbol (info, abfd,
|
| 1289 |
|
|
"__tls_get_addr", 0,
|
| 1290 |
|
|
bfd_und_section_ptr, 0,
|
| 1291 |
|
|
NULL, FALSE, FALSE,
|
| 1292 |
|
|
&bh))
|
| 1293 |
|
|
return FALSE;
|
| 1294 |
|
|
h = (struct elf_link_hash_entry *) bh;
|
| 1295 |
|
|
}
|
| 1296 |
|
|
else
|
| 1297 |
|
|
break;
|
| 1298 |
|
|
/* Fall through */
|
| 1299 |
|
|
|
| 1300 |
|
|
case R_SPARC_PLT32:
|
| 1301 |
|
|
case R_SPARC_WPLT30:
|
| 1302 |
|
|
case R_SPARC_HIPLT22:
|
| 1303 |
|
|
case R_SPARC_LOPLT10:
|
| 1304 |
|
|
case R_SPARC_PCPLT32:
|
| 1305 |
|
|
case R_SPARC_PCPLT22:
|
| 1306 |
|
|
case R_SPARC_PCPLT10:
|
| 1307 |
|
|
case R_SPARC_PLT64:
|
| 1308 |
|
|
/* This symbol requires a procedure linkage table entry. We
|
| 1309 |
|
|
actually build the entry in adjust_dynamic_symbol,
|
| 1310 |
|
|
because this might be a case of linking PIC code without
|
| 1311 |
|
|
linking in any dynamic objects, in which case we don't
|
| 1312 |
|
|
need to generate a procedure linkage table after all. */
|
| 1313 |
|
|
|
| 1314 |
|
|
if (h == NULL)
|
| 1315 |
|
|
{
|
| 1316 |
|
|
if (! ABI_64_P (abfd))
|
| 1317 |
|
|
{
|
| 1318 |
|
|
/* The Solaris native assembler will generate a WPLT30
|
| 1319 |
|
|
reloc for a local symbol if you assemble a call from
|
| 1320 |
|
|
one section to another when using -K pic. We treat
|
| 1321 |
|
|
it as WDISP30. */
|
| 1322 |
|
|
if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
|
| 1323 |
|
|
goto r_sparc_plt32;
|
| 1324 |
|
|
break;
|
| 1325 |
|
|
}
|
| 1326 |
225 |
jeremybenn |
/* PR 7027: We need similar behaviour for 64-bit binaries. */
|
| 1327 |
|
|
else if (r_type == R_SPARC_WPLT30)
|
| 1328 |
|
|
break;
|
| 1329 |
24 |
jeremybenn |
|
| 1330 |
|
|
/* It does not make sense to have a procedure linkage
|
| 1331 |
|
|
table entry for a local symbol. */
|
| 1332 |
|
|
bfd_set_error (bfd_error_bad_value);
|
| 1333 |
|
|
return FALSE;
|
| 1334 |
|
|
}
|
| 1335 |
|
|
|
| 1336 |
|
|
h->needs_plt = 1;
|
| 1337 |
|
|
|
| 1338 |
|
|
{
|
| 1339 |
|
|
int this_r_type;
|
| 1340 |
|
|
|
| 1341 |
|
|
this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
|
| 1342 |
|
|
if (this_r_type == R_SPARC_PLT32
|
| 1343 |
|
|
|| this_r_type == R_SPARC_PLT64)
|
| 1344 |
|
|
goto r_sparc_plt32;
|
| 1345 |
|
|
}
|
| 1346 |
|
|
h->plt.refcount += 1;
|
| 1347 |
|
|
break;
|
| 1348 |
|
|
|
| 1349 |
|
|
case R_SPARC_PC10:
|
| 1350 |
|
|
case R_SPARC_PC22:
|
| 1351 |
|
|
case R_SPARC_PC_HH22:
|
| 1352 |
|
|
case R_SPARC_PC_HM10:
|
| 1353 |
|
|
case R_SPARC_PC_LM22:
|
| 1354 |
|
|
if (h != NULL)
|
| 1355 |
|
|
h->non_got_ref = 1;
|
| 1356 |
|
|
|
| 1357 |
|
|
if (h != NULL
|
| 1358 |
|
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
| 1359 |
|
|
break;
|
| 1360 |
|
|
/* Fall through. */
|
| 1361 |
|
|
|
| 1362 |
|
|
case R_SPARC_DISP8:
|
| 1363 |
|
|
case R_SPARC_DISP16:
|
| 1364 |
|
|
case R_SPARC_DISP32:
|
| 1365 |
|
|
case R_SPARC_DISP64:
|
| 1366 |
|
|
case R_SPARC_WDISP30:
|
| 1367 |
|
|
case R_SPARC_WDISP22:
|
| 1368 |
|
|
case R_SPARC_WDISP19:
|
| 1369 |
|
|
case R_SPARC_WDISP16:
|
| 1370 |
|
|
case R_SPARC_8:
|
| 1371 |
|
|
case R_SPARC_16:
|
| 1372 |
|
|
case R_SPARC_32:
|
| 1373 |
|
|
case R_SPARC_HI22:
|
| 1374 |
|
|
case R_SPARC_22:
|
| 1375 |
|
|
case R_SPARC_13:
|
| 1376 |
|
|
case R_SPARC_LO10:
|
| 1377 |
|
|
case R_SPARC_UA16:
|
| 1378 |
|
|
case R_SPARC_UA32:
|
| 1379 |
|
|
case R_SPARC_10:
|
| 1380 |
|
|
case R_SPARC_11:
|
| 1381 |
|
|
case R_SPARC_64:
|
| 1382 |
|
|
case R_SPARC_OLO10:
|
| 1383 |
|
|
case R_SPARC_HH22:
|
| 1384 |
|
|
case R_SPARC_HM10:
|
| 1385 |
|
|
case R_SPARC_LM22:
|
| 1386 |
|
|
case R_SPARC_7:
|
| 1387 |
|
|
case R_SPARC_5:
|
| 1388 |
|
|
case R_SPARC_6:
|
| 1389 |
|
|
case R_SPARC_HIX22:
|
| 1390 |
|
|
case R_SPARC_LOX10:
|
| 1391 |
|
|
case R_SPARC_H44:
|
| 1392 |
|
|
case R_SPARC_M44:
|
| 1393 |
|
|
case R_SPARC_L44:
|
| 1394 |
|
|
case R_SPARC_UA64:
|
| 1395 |
|
|
if (h != NULL)
|
| 1396 |
|
|
h->non_got_ref = 1;
|
| 1397 |
|
|
|
| 1398 |
|
|
r_sparc_plt32:
|
| 1399 |
|
|
if (h != NULL && !info->shared)
|
| 1400 |
|
|
{
|
| 1401 |
|
|
/* We may need a .plt entry if the function this reloc
|
| 1402 |
|
|
refers to is in a shared lib. */
|
| 1403 |
|
|
h->plt.refcount += 1;
|
| 1404 |
|
|
}
|
| 1405 |
|
|
|
| 1406 |
|
|
/* If we are creating a shared library, and this is a reloc
|
| 1407 |
|
|
against a global symbol, or a non PC relative reloc
|
| 1408 |
|
|
against a local symbol, then we need to copy the reloc
|
| 1409 |
|
|
into the shared library. However, if we are linking with
|
| 1410 |
|
|
-Bsymbolic, we do not need to copy a reloc against a
|
| 1411 |
|
|
global symbol which is defined in an object we are
|
| 1412 |
|
|
including in the link (i.e., DEF_REGULAR is set). At
|
| 1413 |
|
|
this point we have not seen all the input files, so it is
|
| 1414 |
|
|
possible that DEF_REGULAR is not set now but will be set
|
| 1415 |
|
|
later (it is never cleared). In case of a weak definition,
|
| 1416 |
|
|
DEF_REGULAR may be cleared later by a strong definition in
|
| 1417 |
|
|
a shared library. We account for that possibility below by
|
| 1418 |
|
|
storing information in the relocs_copied field of the hash
|
| 1419 |
|
|
table entry. A similar situation occurs when creating
|
| 1420 |
|
|
shared libraries and symbol visibility changes render the
|
| 1421 |
|
|
symbol local.
|
| 1422 |
|
|
|
| 1423 |
|
|
If on the other hand, we are creating an executable, we
|
| 1424 |
|
|
may need to keep relocations for symbols satisfied by a
|
| 1425 |
|
|
dynamic library if we manage to avoid copy relocs for the
|
| 1426 |
|
|
symbol. */
|
| 1427 |
|
|
if ((info->shared
|
| 1428 |
|
|
&& (sec->flags & SEC_ALLOC) != 0
|
| 1429 |
|
|
&& (! _bfd_sparc_elf_howto_table[r_type].pc_relative
|
| 1430 |
|
|
|| (h != NULL
|
| 1431 |
|
|
&& (! info->symbolic
|
| 1432 |
|
|
|| h->root.type == bfd_link_hash_defweak
|
| 1433 |
|
|
|| !h->def_regular))))
|
| 1434 |
|
|
|| (!info->shared
|
| 1435 |
|
|
&& (sec->flags & SEC_ALLOC) != 0
|
| 1436 |
|
|
&& h != NULL
|
| 1437 |
|
|
&& (h->root.type == bfd_link_hash_defweak
|
| 1438 |
|
|
|| !h->def_regular)))
|
| 1439 |
|
|
{
|
| 1440 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
| 1441 |
|
|
struct _bfd_sparc_elf_dyn_relocs **head;
|
| 1442 |
|
|
|
| 1443 |
|
|
/* When creating a shared object, we must copy these
|
| 1444 |
|
|
relocs into the output file. We create a reloc
|
| 1445 |
|
|
section in dynobj and make room for the reloc. */
|
| 1446 |
|
|
if (sreloc == NULL)
|
| 1447 |
|
|
{
|
| 1448 |
|
|
if (htab->elf.dynobj == NULL)
|
| 1449 |
|
|
htab->elf.dynobj = abfd;
|
| 1450 |
|
|
|
| 1451 |
225 |
jeremybenn |
sreloc = _bfd_elf_make_dynamic_reloc_section
|
| 1452 |
|
|
(sec, htab->elf.dynobj, htab->word_align_power,
|
| 1453 |
|
|
abfd, /*rela?*/ TRUE);
|
| 1454 |
|
|
|
| 1455 |
24 |
jeremybenn |
if (sreloc == NULL)
|
| 1456 |
225 |
jeremybenn |
return FALSE;
|
| 1457 |
24 |
jeremybenn |
}
|
| 1458 |
|
|
|
| 1459 |
|
|
/* If this is a global symbol, we count the number of
|
| 1460 |
|
|
relocations we need for this symbol. */
|
| 1461 |
|
|
if (h != NULL)
|
| 1462 |
|
|
head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
|
| 1463 |
|
|
else
|
| 1464 |
|
|
{
|
| 1465 |
|
|
/* Track dynamic relocs needed for local syms too.
|
| 1466 |
|
|
We really need local syms available to do this
|
| 1467 |
|
|
easily. Oh well. */
|
| 1468 |
|
|
asection *s;
|
| 1469 |
|
|
void *vpp;
|
| 1470 |
225 |
jeremybenn |
Elf_Internal_Sym *isym;
|
| 1471 |
24 |
jeremybenn |
|
| 1472 |
225 |
jeremybenn |
isym = bfd_sym_from_r_symndx (&htab->sym_cache,
|
| 1473 |
|
|
abfd, r_symndx);
|
| 1474 |
|
|
if (isym == NULL)
|
| 1475 |
24 |
jeremybenn |
return FALSE;
|
| 1476 |
|
|
|
| 1477 |
225 |
jeremybenn |
s = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
| 1478 |
|
|
if (s == NULL)
|
| 1479 |
|
|
s = sec;
|
| 1480 |
|
|
|
| 1481 |
24 |
jeremybenn |
vpp = &elf_section_data (s)->local_dynrel;
|
| 1482 |
|
|
head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
|
| 1483 |
|
|
}
|
| 1484 |
|
|
|
| 1485 |
|
|
p = *head;
|
| 1486 |
|
|
if (p == NULL || p->sec != sec)
|
| 1487 |
|
|
{
|
| 1488 |
|
|
bfd_size_type amt = sizeof *p;
|
| 1489 |
|
|
p = ((struct _bfd_sparc_elf_dyn_relocs *)
|
| 1490 |
|
|
bfd_alloc (htab->elf.dynobj, amt));
|
| 1491 |
|
|
if (p == NULL)
|
| 1492 |
|
|
return FALSE;
|
| 1493 |
|
|
p->next = *head;
|
| 1494 |
|
|
*head = p;
|
| 1495 |
|
|
p->sec = sec;
|
| 1496 |
|
|
p->count = 0;
|
| 1497 |
|
|
p->pc_count = 0;
|
| 1498 |
|
|
}
|
| 1499 |
|
|
|
| 1500 |
|
|
p->count += 1;
|
| 1501 |
|
|
if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
|
| 1502 |
|
|
p->pc_count += 1;
|
| 1503 |
|
|
}
|
| 1504 |
|
|
|
| 1505 |
|
|
break;
|
| 1506 |
|
|
|
| 1507 |
|
|
case R_SPARC_GNU_VTINHERIT:
|
| 1508 |
|
|
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
| 1509 |
|
|
return FALSE;
|
| 1510 |
|
|
break;
|
| 1511 |
|
|
|
| 1512 |
|
|
case R_SPARC_GNU_VTENTRY:
|
| 1513 |
|
|
BFD_ASSERT (h != NULL);
|
| 1514 |
|
|
if (h != NULL
|
| 1515 |
|
|
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
| 1516 |
|
|
return FALSE;
|
| 1517 |
|
|
break;
|
| 1518 |
|
|
|
| 1519 |
|
|
case R_SPARC_REGISTER:
|
| 1520 |
|
|
/* Nothing to do. */
|
| 1521 |
|
|
break;
|
| 1522 |
|
|
|
| 1523 |
|
|
default:
|
| 1524 |
|
|
break;
|
| 1525 |
|
|
}
|
| 1526 |
|
|
}
|
| 1527 |
|
|
|
| 1528 |
|
|
return TRUE;
|
| 1529 |
|
|
}
|
| 1530 |
|
|
|
| 1531 |
|
|
asection *
|
| 1532 |
|
|
_bfd_sparc_elf_gc_mark_hook (asection *sec,
|
| 1533 |
|
|
struct bfd_link_info *info,
|
| 1534 |
|
|
Elf_Internal_Rela *rel,
|
| 1535 |
|
|
struct elf_link_hash_entry *h,
|
| 1536 |
|
|
Elf_Internal_Sym *sym)
|
| 1537 |
|
|
{
|
| 1538 |
|
|
if (h != NULL)
|
| 1539 |
|
|
switch (SPARC_ELF_R_TYPE (rel->r_info))
|
| 1540 |
|
|
{
|
| 1541 |
|
|
case R_SPARC_GNU_VTINHERIT:
|
| 1542 |
|
|
case R_SPARC_GNU_VTENTRY:
|
| 1543 |
|
|
return NULL;
|
| 1544 |
|
|
}
|
| 1545 |
|
|
|
| 1546 |
|
|
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
| 1547 |
|
|
}
|
| 1548 |
|
|
|
| 1549 |
|
|
/* Update the got entry reference counts for the section being removed. */
|
| 1550 |
|
|
bfd_boolean
|
| 1551 |
|
|
_bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
|
| 1552 |
|
|
asection *sec, const Elf_Internal_Rela *relocs)
|
| 1553 |
|
|
{
|
| 1554 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 1555 |
|
|
Elf_Internal_Shdr *symtab_hdr;
|
| 1556 |
|
|
struct elf_link_hash_entry **sym_hashes;
|
| 1557 |
|
|
bfd_signed_vma *local_got_refcounts;
|
| 1558 |
|
|
const Elf_Internal_Rela *rel, *relend;
|
| 1559 |
|
|
|
| 1560 |
|
|
if (info->relocatable)
|
| 1561 |
|
|
return TRUE;
|
| 1562 |
|
|
|
| 1563 |
|
|
BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0);
|
| 1564 |
|
|
|
| 1565 |
|
|
elf_section_data (sec)->local_dynrel = NULL;
|
| 1566 |
|
|
|
| 1567 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 1568 |
|
|
symtab_hdr = &elf_symtab_hdr (abfd);
|
| 1569 |
|
|
sym_hashes = elf_sym_hashes (abfd);
|
| 1570 |
|
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
| 1571 |
|
|
|
| 1572 |
|
|
relend = relocs + sec->reloc_count;
|
| 1573 |
|
|
for (rel = relocs; rel < relend; rel++)
|
| 1574 |
|
|
{
|
| 1575 |
|
|
unsigned long r_symndx;
|
| 1576 |
|
|
unsigned int r_type;
|
| 1577 |
|
|
struct elf_link_hash_entry *h = NULL;
|
| 1578 |
|
|
|
| 1579 |
|
|
r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
|
| 1580 |
|
|
if (r_symndx >= symtab_hdr->sh_info)
|
| 1581 |
|
|
{
|
| 1582 |
|
|
struct _bfd_sparc_elf_link_hash_entry *eh;
|
| 1583 |
|
|
struct _bfd_sparc_elf_dyn_relocs **pp;
|
| 1584 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
| 1585 |
|
|
|
| 1586 |
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
| 1587 |
|
|
while (h->root.type == bfd_link_hash_indirect
|
| 1588 |
|
|
|| h->root.type == bfd_link_hash_warning)
|
| 1589 |
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
| 1590 |
|
|
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
|
| 1591 |
|
|
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
|
| 1592 |
|
|
if (p->sec == sec)
|
| 1593 |
|
|
{
|
| 1594 |
|
|
/* Everything must go for SEC. */
|
| 1595 |
|
|
*pp = p->next;
|
| 1596 |
|
|
break;
|
| 1597 |
|
|
}
|
| 1598 |
|
|
}
|
| 1599 |
|
|
|
| 1600 |
|
|
r_type = SPARC_ELF_R_TYPE (rel->r_info);
|
| 1601 |
|
|
r_type = sparc_elf_tls_transition (info, abfd, r_type, h != NULL);
|
| 1602 |
|
|
switch (r_type)
|
| 1603 |
|
|
{
|
| 1604 |
|
|
case R_SPARC_TLS_LDM_HI22:
|
| 1605 |
|
|
case R_SPARC_TLS_LDM_LO10:
|
| 1606 |
|
|
if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0)
|
| 1607 |
|
|
_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
|
| 1608 |
|
|
break;
|
| 1609 |
|
|
|
| 1610 |
|
|
case R_SPARC_TLS_GD_HI22:
|
| 1611 |
|
|
case R_SPARC_TLS_GD_LO10:
|
| 1612 |
|
|
case R_SPARC_TLS_IE_HI22:
|
| 1613 |
|
|
case R_SPARC_TLS_IE_LO10:
|
| 1614 |
|
|
case R_SPARC_GOT10:
|
| 1615 |
|
|
case R_SPARC_GOT13:
|
| 1616 |
|
|
case R_SPARC_GOT22:
|
| 1617 |
225 |
jeremybenn |
case R_SPARC_GOTDATA_HIX22:
|
| 1618 |
|
|
case R_SPARC_GOTDATA_LOX10:
|
| 1619 |
|
|
case R_SPARC_GOTDATA_OP_HIX22:
|
| 1620 |
|
|
case R_SPARC_GOTDATA_OP_LOX10:
|
| 1621 |
24 |
jeremybenn |
if (h != NULL)
|
| 1622 |
|
|
{
|
| 1623 |
|
|
if (h->got.refcount > 0)
|
| 1624 |
|
|
h->got.refcount--;
|
| 1625 |
|
|
}
|
| 1626 |
|
|
else
|
| 1627 |
|
|
{
|
| 1628 |
|
|
if (local_got_refcounts[r_symndx] > 0)
|
| 1629 |
|
|
local_got_refcounts[r_symndx]--;
|
| 1630 |
|
|
}
|
| 1631 |
|
|
break;
|
| 1632 |
|
|
|
| 1633 |
|
|
case R_SPARC_PC10:
|
| 1634 |
|
|
case R_SPARC_PC22:
|
| 1635 |
|
|
case R_SPARC_PC_HH22:
|
| 1636 |
|
|
case R_SPARC_PC_HM10:
|
| 1637 |
|
|
case R_SPARC_PC_LM22:
|
| 1638 |
|
|
if (h != NULL
|
| 1639 |
|
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
| 1640 |
|
|
break;
|
| 1641 |
|
|
/* Fall through. */
|
| 1642 |
|
|
|
| 1643 |
|
|
case R_SPARC_DISP8:
|
| 1644 |
|
|
case R_SPARC_DISP16:
|
| 1645 |
|
|
case R_SPARC_DISP32:
|
| 1646 |
|
|
case R_SPARC_DISP64:
|
| 1647 |
|
|
case R_SPARC_WDISP30:
|
| 1648 |
|
|
case R_SPARC_WDISP22:
|
| 1649 |
|
|
case R_SPARC_WDISP19:
|
| 1650 |
|
|
case R_SPARC_WDISP16:
|
| 1651 |
|
|
case R_SPARC_8:
|
| 1652 |
|
|
case R_SPARC_16:
|
| 1653 |
|
|
case R_SPARC_32:
|
| 1654 |
|
|
case R_SPARC_HI22:
|
| 1655 |
|
|
case R_SPARC_22:
|
| 1656 |
|
|
case R_SPARC_13:
|
| 1657 |
|
|
case R_SPARC_LO10:
|
| 1658 |
|
|
case R_SPARC_UA16:
|
| 1659 |
|
|
case R_SPARC_UA32:
|
| 1660 |
|
|
case R_SPARC_PLT32:
|
| 1661 |
|
|
case R_SPARC_10:
|
| 1662 |
|
|
case R_SPARC_11:
|
| 1663 |
|
|
case R_SPARC_64:
|
| 1664 |
|
|
case R_SPARC_OLO10:
|
| 1665 |
|
|
case R_SPARC_HH22:
|
| 1666 |
|
|
case R_SPARC_HM10:
|
| 1667 |
|
|
case R_SPARC_LM22:
|
| 1668 |
|
|
case R_SPARC_7:
|
| 1669 |
|
|
case R_SPARC_5:
|
| 1670 |
|
|
case R_SPARC_6:
|
| 1671 |
|
|
case R_SPARC_HIX22:
|
| 1672 |
|
|
case R_SPARC_LOX10:
|
| 1673 |
|
|
case R_SPARC_H44:
|
| 1674 |
|
|
case R_SPARC_M44:
|
| 1675 |
|
|
case R_SPARC_L44:
|
| 1676 |
|
|
case R_SPARC_UA64:
|
| 1677 |
|
|
if (info->shared)
|
| 1678 |
|
|
break;
|
| 1679 |
|
|
/* Fall through. */
|
| 1680 |
|
|
|
| 1681 |
|
|
case R_SPARC_WPLT30:
|
| 1682 |
|
|
if (h != NULL)
|
| 1683 |
|
|
{
|
| 1684 |
|
|
if (h->plt.refcount > 0)
|
| 1685 |
|
|
h->plt.refcount--;
|
| 1686 |
|
|
}
|
| 1687 |
|
|
break;
|
| 1688 |
|
|
|
| 1689 |
|
|
default:
|
| 1690 |
|
|
break;
|
| 1691 |
|
|
}
|
| 1692 |
|
|
}
|
| 1693 |
|
|
|
| 1694 |
|
|
return TRUE;
|
| 1695 |
|
|
}
|
| 1696 |
|
|
|
| 1697 |
|
|
/* Adjust a symbol defined by a dynamic object and referenced by a
|
| 1698 |
|
|
regular object. The current definition is in some section of the
|
| 1699 |
|
|
dynamic object, but we're not including those sections. We have to
|
| 1700 |
|
|
change the definition to something the rest of the link can
|
| 1701 |
|
|
understand. */
|
| 1702 |
|
|
|
| 1703 |
|
|
bfd_boolean
|
| 1704 |
|
|
_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
|
| 1705 |
|
|
struct elf_link_hash_entry *h)
|
| 1706 |
|
|
{
|
| 1707 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 1708 |
|
|
struct _bfd_sparc_elf_link_hash_entry * eh;
|
| 1709 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
| 1710 |
|
|
asection *s;
|
| 1711 |
|
|
|
| 1712 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 1713 |
|
|
|
| 1714 |
|
|
/* Make sure we know what is going on here. */
|
| 1715 |
|
|
BFD_ASSERT (htab->elf.dynobj != NULL
|
| 1716 |
|
|
&& (h->needs_plt
|
| 1717 |
|
|
|| h->u.weakdef != NULL
|
| 1718 |
|
|
|| (h->def_dynamic
|
| 1719 |
|
|
&& h->ref_regular
|
| 1720 |
|
|
&& !h->def_regular)));
|
| 1721 |
|
|
|
| 1722 |
|
|
/* If this is a function, put it in the procedure linkage table. We
|
| 1723 |
|
|
will fill in the contents of the procedure linkage table later
|
| 1724 |
|
|
(although we could actually do it here). The STT_NOTYPE
|
| 1725 |
|
|
condition is a hack specifically for the Oracle libraries
|
| 1726 |
|
|
delivered for Solaris; for some inexplicable reason, they define
|
| 1727 |
|
|
some of their functions as STT_NOTYPE when they really should be
|
| 1728 |
|
|
STT_FUNC. */
|
| 1729 |
|
|
if (h->type == STT_FUNC
|
| 1730 |
|
|
|| h->needs_plt
|
| 1731 |
|
|
|| (h->type == STT_NOTYPE
|
| 1732 |
|
|
&& (h->root.type == bfd_link_hash_defined
|
| 1733 |
|
|
|| h->root.type == bfd_link_hash_defweak)
|
| 1734 |
|
|
&& (h->root.u.def.section->flags & SEC_CODE) != 0))
|
| 1735 |
|
|
{
|
| 1736 |
|
|
if (h->plt.refcount <= 0
|
| 1737 |
|
|
|| (! info->shared
|
| 1738 |
|
|
&& !h->def_dynamic
|
| 1739 |
|
|
&& !h->ref_dynamic
|
| 1740 |
|
|
&& h->root.type != bfd_link_hash_undefweak
|
| 1741 |
|
|
&& h->root.type != bfd_link_hash_undefined))
|
| 1742 |
|
|
{
|
| 1743 |
|
|
/* This case can occur if we saw a WPLT30 reloc in an input
|
| 1744 |
|
|
file, but the symbol was never referred to by a dynamic
|
| 1745 |
|
|
object, or if all references were garbage collected. In
|
| 1746 |
|
|
such a case, we don't actually need to build a procedure
|
| 1747 |
|
|
linkage table, and we can just do a WDISP30 reloc instead. */
|
| 1748 |
|
|
h->plt.offset = (bfd_vma) -1;
|
| 1749 |
|
|
h->needs_plt = 0;
|
| 1750 |
|
|
}
|
| 1751 |
|
|
|
| 1752 |
|
|
return TRUE;
|
| 1753 |
|
|
}
|
| 1754 |
|
|
else
|
| 1755 |
|
|
h->plt.offset = (bfd_vma) -1;
|
| 1756 |
|
|
|
| 1757 |
|
|
/* If this is a weak symbol, and there is a real definition, the
|
| 1758 |
|
|
processor independent code will have arranged for us to see the
|
| 1759 |
|
|
real definition first, and we can just use the same value. */
|
| 1760 |
|
|
if (h->u.weakdef != NULL)
|
| 1761 |
|
|
{
|
| 1762 |
|
|
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|
| 1763 |
|
|
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
|
| 1764 |
|
|
h->root.u.def.section = h->u.weakdef->root.u.def.section;
|
| 1765 |
|
|
h->root.u.def.value = h->u.weakdef->root.u.def.value;
|
| 1766 |
|
|
return TRUE;
|
| 1767 |
|
|
}
|
| 1768 |
|
|
|
| 1769 |
|
|
/* This is a reference to a symbol defined by a dynamic object which
|
| 1770 |
|
|
is not a function. */
|
| 1771 |
|
|
|
| 1772 |
|
|
/* If we are creating a shared library, we must presume that the
|
| 1773 |
|
|
only references to the symbol are via the global offset table.
|
| 1774 |
|
|
For such cases we need not do anything here; the relocations will
|
| 1775 |
|
|
be handled correctly by relocate_section. */
|
| 1776 |
|
|
if (info->shared)
|
| 1777 |
|
|
return TRUE;
|
| 1778 |
|
|
|
| 1779 |
|
|
/* If there are no references to this symbol that do not use the
|
| 1780 |
|
|
GOT, we don't need to generate a copy reloc. */
|
| 1781 |
|
|
if (!h->non_got_ref)
|
| 1782 |
|
|
return TRUE;
|
| 1783 |
|
|
|
| 1784 |
|
|
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
|
| 1785 |
|
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
| 1786 |
|
|
{
|
| 1787 |
|
|
s = p->sec->output_section;
|
| 1788 |
|
|
if (s != NULL && (s->flags & SEC_READONLY) != 0)
|
| 1789 |
|
|
break;
|
| 1790 |
|
|
}
|
| 1791 |
|
|
|
| 1792 |
|
|
/* If we didn't find any dynamic relocs in read-only sections, then
|
| 1793 |
|
|
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
|
| 1794 |
|
|
if (p == NULL)
|
| 1795 |
|
|
{
|
| 1796 |
|
|
h->non_got_ref = 0;
|
| 1797 |
|
|
return TRUE;
|
| 1798 |
|
|
}
|
| 1799 |
|
|
|
| 1800 |
|
|
if (h->size == 0)
|
| 1801 |
|
|
{
|
| 1802 |
|
|
(*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
|
| 1803 |
|
|
h->root.root.string);
|
| 1804 |
|
|
return TRUE;
|
| 1805 |
|
|
}
|
| 1806 |
|
|
|
| 1807 |
|
|
/* We must allocate the symbol in our .dynbss section, which will
|
| 1808 |
|
|
become part of the .bss section of the executable. There will be
|
| 1809 |
|
|
an entry for this symbol in the .dynsym section. The dynamic
|
| 1810 |
|
|
object will contain position independent code, so all references
|
| 1811 |
|
|
from the dynamic object to this symbol will go through the global
|
| 1812 |
|
|
offset table. The dynamic linker will use the .dynsym entry to
|
| 1813 |
|
|
determine the address it must put in the global offset table, so
|
| 1814 |
|
|
both the dynamic object and the regular object will refer to the
|
| 1815 |
|
|
same memory location for the variable. */
|
| 1816 |
|
|
|
| 1817 |
|
|
/* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
|
| 1818 |
|
|
to copy the initial value out of the dynamic object and into the
|
| 1819 |
|
|
runtime process image. We need to remember the offset into the
|
| 1820 |
|
|
.rel.bss section we are going to use. */
|
| 1821 |
|
|
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
|
| 1822 |
|
|
{
|
| 1823 |
|
|
htab->srelbss->size += SPARC_ELF_RELA_BYTES (htab);
|
| 1824 |
|
|
h->needs_copy = 1;
|
| 1825 |
|
|
}
|
| 1826 |
|
|
|
| 1827 |
|
|
s = htab->sdynbss;
|
| 1828 |
|
|
|
| 1829 |
|
|
return _bfd_elf_adjust_dynamic_copy (h, s);
|
| 1830 |
|
|
}
|
| 1831 |
|
|
|
| 1832 |
|
|
/* Allocate space in .plt, .got and associated reloc sections for
|
| 1833 |
|
|
dynamic relocs. */
|
| 1834 |
|
|
|
| 1835 |
|
|
static bfd_boolean
|
| 1836 |
|
|
allocate_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
|
| 1837 |
|
|
{
|
| 1838 |
|
|
struct bfd_link_info *info;
|
| 1839 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 1840 |
|
|
struct _bfd_sparc_elf_link_hash_entry *eh;
|
| 1841 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
| 1842 |
|
|
|
| 1843 |
|
|
if (h->root.type == bfd_link_hash_indirect)
|
| 1844 |
|
|
return TRUE;
|
| 1845 |
|
|
|
| 1846 |
|
|
if (h->root.type == bfd_link_hash_warning)
|
| 1847 |
|
|
/* When warning symbols are created, they **replace** the "real"
|
| 1848 |
|
|
entry in the hash table, thus we never get to see the real
|
| 1849 |
|
|
symbol in a hash traversal. So look at it now. */
|
| 1850 |
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
| 1851 |
|
|
|
| 1852 |
|
|
info = (struct bfd_link_info *) inf;
|
| 1853 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 1854 |
|
|
|
| 1855 |
|
|
if (htab->elf.dynamic_sections_created
|
| 1856 |
|
|
&& h->plt.refcount > 0)
|
| 1857 |
|
|
{
|
| 1858 |
|
|
/* Make sure this symbol is output as a dynamic symbol.
|
| 1859 |
|
|
Undefined weak syms won't yet be marked as dynamic. */
|
| 1860 |
|
|
if (h->dynindx == -1
|
| 1861 |
|
|
&& !h->forced_local)
|
| 1862 |
|
|
{
|
| 1863 |
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
| 1864 |
|
|
return FALSE;
|
| 1865 |
|
|
}
|
| 1866 |
|
|
|
| 1867 |
|
|
if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
|
| 1868 |
|
|
{
|
| 1869 |
|
|
asection *s = htab->splt;
|
| 1870 |
|
|
|
| 1871 |
|
|
/* Allocate room for the header. */
|
| 1872 |
|
|
if (s->size == 0)
|
| 1873 |
|
|
{
|
| 1874 |
|
|
s->size = htab->plt_header_size;
|
| 1875 |
|
|
|
| 1876 |
|
|
/* Allocate space for the .rela.plt.unloaded relocations. */
|
| 1877 |
|
|
if (htab->is_vxworks && !info->shared)
|
| 1878 |
|
|
htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
|
| 1879 |
|
|
}
|
| 1880 |
|
|
|
| 1881 |
|
|
/* The procedure linkage table size is bounded by the magnitude
|
| 1882 |
|
|
of the offset we can describe in the entry. */
|
| 1883 |
|
|
if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
|
| 1884 |
|
|
(((bfd_vma)1 << 31) << 1) : 0x400000))
|
| 1885 |
|
|
{
|
| 1886 |
|
|
bfd_set_error (bfd_error_bad_value);
|
| 1887 |
|
|
return FALSE;
|
| 1888 |
|
|
}
|
| 1889 |
|
|
|
| 1890 |
|
|
if (SPARC_ELF_WORD_BYTES(htab) == 8
|
| 1891 |
|
|
&& s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
|
| 1892 |
|
|
{
|
| 1893 |
|
|
bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
|
| 1894 |
|
|
|
| 1895 |
|
|
|
| 1896 |
|
|
off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
|
| 1897 |
|
|
|
| 1898 |
|
|
h->plt.offset = (s->size - (off * 8));
|
| 1899 |
|
|
}
|
| 1900 |
|
|
else
|
| 1901 |
|
|
h->plt.offset = s->size;
|
| 1902 |
|
|
|
| 1903 |
|
|
/* If this symbol is not defined in a regular file, and we are
|
| 1904 |
|
|
not generating a shared library, then set the symbol to this
|
| 1905 |
|
|
location in the .plt. This is required to make function
|
| 1906 |
|
|
pointers compare as equal between the normal executable and
|
| 1907 |
|
|
the shared library. */
|
| 1908 |
|
|
if (! info->shared
|
| 1909 |
|
|
&& !h->def_regular)
|
| 1910 |
|
|
{
|
| 1911 |
|
|
h->root.u.def.section = s;
|
| 1912 |
|
|
h->root.u.def.value = h->plt.offset;
|
| 1913 |
|
|
}
|
| 1914 |
|
|
|
| 1915 |
|
|
/* Make room for this entry. */
|
| 1916 |
|
|
s->size += htab->plt_entry_size;
|
| 1917 |
|
|
|
| 1918 |
|
|
/* We also need to make an entry in the .rela.plt section. */
|
| 1919 |
|
|
htab->srelplt->size += SPARC_ELF_RELA_BYTES (htab);
|
| 1920 |
|
|
|
| 1921 |
|
|
if (htab->is_vxworks)
|
| 1922 |
|
|
{
|
| 1923 |
|
|
/* Allocate space for the .got.plt entry. */
|
| 1924 |
|
|
htab->sgotplt->size += 4;
|
| 1925 |
|
|
|
| 1926 |
|
|
/* ...and for the .rela.plt.unloaded relocations. */
|
| 1927 |
|
|
if (!info->shared)
|
| 1928 |
|
|
htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
|
| 1929 |
|
|
}
|
| 1930 |
|
|
}
|
| 1931 |
|
|
else
|
| 1932 |
|
|
{
|
| 1933 |
|
|
h->plt.offset = (bfd_vma) -1;
|
| 1934 |
|
|
h->needs_plt = 0;
|
| 1935 |
|
|
}
|
| 1936 |
|
|
}
|
| 1937 |
|
|
else
|
| 1938 |
|
|
{
|
| 1939 |
|
|
h->plt.offset = (bfd_vma) -1;
|
| 1940 |
|
|
h->needs_plt = 0;
|
| 1941 |
|
|
}
|
| 1942 |
|
|
|
| 1943 |
|
|
/* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
|
| 1944 |
|
|
make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
|
| 1945 |
|
|
if (h->got.refcount > 0
|
| 1946 |
|
|
&& !info->shared
|
| 1947 |
|
|
&& h->dynindx == -1
|
| 1948 |
|
|
&& _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
|
| 1949 |
|
|
h->got.offset = (bfd_vma) -1;
|
| 1950 |
|
|
else if (h->got.refcount > 0)
|
| 1951 |
|
|
{
|
| 1952 |
|
|
asection *s;
|
| 1953 |
|
|
bfd_boolean dyn;
|
| 1954 |
|
|
int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
| 1955 |
|
|
|
| 1956 |
|
|
/* Make sure this symbol is output as a dynamic symbol.
|
| 1957 |
|
|
Undefined weak syms won't yet be marked as dynamic. */
|
| 1958 |
|
|
if (h->dynindx == -1
|
| 1959 |
|
|
&& !h->forced_local)
|
| 1960 |
|
|
{
|
| 1961 |
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
| 1962 |
|
|
return FALSE;
|
| 1963 |
|
|
}
|
| 1964 |
|
|
|
| 1965 |
|
|
s = htab->sgot;
|
| 1966 |
|
|
h->got.offset = s->size;
|
| 1967 |
|
|
s->size += SPARC_ELF_WORD_BYTES (htab);
|
| 1968 |
|
|
/* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
|
| 1969 |
|
|
if (tls_type == GOT_TLS_GD)
|
| 1970 |
|
|
s->size += SPARC_ELF_WORD_BYTES (htab);
|
| 1971 |
|
|
dyn = htab->elf.dynamic_sections_created;
|
| 1972 |
|
|
/* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
|
| 1973 |
|
|
R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
|
| 1974 |
|
|
global. */
|
| 1975 |
|
|
if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
|
| 1976 |
|
|
|| tls_type == GOT_TLS_IE)
|
| 1977 |
|
|
htab->srelgot->size += SPARC_ELF_RELA_BYTES (htab);
|
| 1978 |
|
|
else if (tls_type == GOT_TLS_GD)
|
| 1979 |
|
|
htab->srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
|
| 1980 |
|
|
else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
|
| 1981 |
|
|
htab->srelgot->size += SPARC_ELF_RELA_BYTES (htab);
|
| 1982 |
|
|
}
|
| 1983 |
|
|
else
|
| 1984 |
|
|
h->got.offset = (bfd_vma) -1;
|
| 1985 |
|
|
|
| 1986 |
|
|
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
|
| 1987 |
|
|
if (eh->dyn_relocs == NULL)
|
| 1988 |
|
|
return TRUE;
|
| 1989 |
|
|
|
| 1990 |
|
|
/* In the shared -Bsymbolic case, discard space allocated for
|
| 1991 |
|
|
dynamic pc-relative relocs against symbols which turn out to be
|
| 1992 |
|
|
defined in regular objects. For the normal shared case, discard
|
| 1993 |
|
|
space for pc-relative relocs that have become local due to symbol
|
| 1994 |
|
|
visibility changes. */
|
| 1995 |
|
|
|
| 1996 |
|
|
if (info->shared)
|
| 1997 |
|
|
{
|
| 1998 |
|
|
if (h->def_regular
|
| 1999 |
|
|
&& (h->forced_local
|
| 2000 |
|
|
|| info->symbolic))
|
| 2001 |
|
|
{
|
| 2002 |
|
|
struct _bfd_sparc_elf_dyn_relocs **pp;
|
| 2003 |
|
|
|
| 2004 |
|
|
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
|
| 2005 |
|
|
{
|
| 2006 |
|
|
p->count -= p->pc_count;
|
| 2007 |
|
|
p->pc_count = 0;
|
| 2008 |
|
|
if (p->count == 0)
|
| 2009 |
|
|
*pp = p->next;
|
| 2010 |
|
|
else
|
| 2011 |
|
|
pp = &p->next;
|
| 2012 |
|
|
}
|
| 2013 |
|
|
}
|
| 2014 |
|
|
|
| 2015 |
225 |
jeremybenn |
if (htab->is_vxworks)
|
| 2016 |
|
|
{
|
| 2017 |
|
|
struct _bfd_sparc_elf_dyn_relocs **pp;
|
| 2018 |
|
|
|
| 2019 |
|
|
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
|
| 2020 |
|
|
{
|
| 2021 |
|
|
if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
|
| 2022 |
|
|
*pp = p->next;
|
| 2023 |
|
|
else
|
| 2024 |
|
|
pp = &p->next;
|
| 2025 |
|
|
}
|
| 2026 |
|
|
}
|
| 2027 |
|
|
|
| 2028 |
24 |
jeremybenn |
/* Also discard relocs on undefined weak syms with non-default
|
| 2029 |
|
|
visibility. */
|
| 2030 |
|
|
if (eh->dyn_relocs != NULL
|
| 2031 |
|
|
&& h->root.type == bfd_link_hash_undefweak)
|
| 2032 |
|
|
{
|
| 2033 |
|
|
if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
| 2034 |
|
|
eh->dyn_relocs = NULL;
|
| 2035 |
|
|
|
| 2036 |
|
|
/* Make sure undefined weak symbols are output as a dynamic
|
| 2037 |
|
|
symbol in PIEs. */
|
| 2038 |
|
|
else if (h->dynindx == -1
|
| 2039 |
|
|
&& !h->forced_local)
|
| 2040 |
|
|
{
|
| 2041 |
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
| 2042 |
|
|
return FALSE;
|
| 2043 |
|
|
}
|
| 2044 |
|
|
}
|
| 2045 |
|
|
}
|
| 2046 |
|
|
else
|
| 2047 |
|
|
{
|
| 2048 |
|
|
/* For the non-shared case, discard space for relocs against
|
| 2049 |
|
|
symbols which turn out to need copy relocs or are not
|
| 2050 |
|
|
dynamic. */
|
| 2051 |
|
|
|
| 2052 |
|
|
if (!h->non_got_ref
|
| 2053 |
|
|
&& ((h->def_dynamic
|
| 2054 |
|
|
&& !h->def_regular)
|
| 2055 |
|
|
|| (htab->elf.dynamic_sections_created
|
| 2056 |
|
|
&& (h->root.type == bfd_link_hash_undefweak
|
| 2057 |
|
|
|| h->root.type == bfd_link_hash_undefined))))
|
| 2058 |
|
|
{
|
| 2059 |
|
|
/* Make sure this symbol is output as a dynamic symbol.
|
| 2060 |
|
|
Undefined weak syms won't yet be marked as dynamic. */
|
| 2061 |
|
|
if (h->dynindx == -1
|
| 2062 |
|
|
&& !h->forced_local)
|
| 2063 |
|
|
{
|
| 2064 |
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
| 2065 |
|
|
return FALSE;
|
| 2066 |
|
|
}
|
| 2067 |
|
|
|
| 2068 |
|
|
/* If that succeeded, we know we'll be keeping all the
|
| 2069 |
|
|
relocs. */
|
| 2070 |
|
|
if (h->dynindx != -1)
|
| 2071 |
|
|
goto keep;
|
| 2072 |
|
|
}
|
| 2073 |
|
|
|
| 2074 |
|
|
eh->dyn_relocs = NULL;
|
| 2075 |
|
|
|
| 2076 |
|
|
keep: ;
|
| 2077 |
|
|
}
|
| 2078 |
|
|
|
| 2079 |
|
|
/* Finally, allocate space. */
|
| 2080 |
|
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
| 2081 |
|
|
{
|
| 2082 |
|
|
asection *sreloc = elf_section_data (p->sec)->sreloc;
|
| 2083 |
|
|
sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
|
| 2084 |
|
|
}
|
| 2085 |
|
|
|
| 2086 |
|
|
return TRUE;
|
| 2087 |
|
|
}
|
| 2088 |
|
|
|
| 2089 |
|
|
/* Find any dynamic relocs that apply to read-only sections. */
|
| 2090 |
|
|
|
| 2091 |
|
|
static bfd_boolean
|
| 2092 |
|
|
readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
|
| 2093 |
|
|
{
|
| 2094 |
|
|
struct _bfd_sparc_elf_link_hash_entry *eh;
|
| 2095 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
| 2096 |
|
|
|
| 2097 |
|
|
if (h->root.type == bfd_link_hash_warning)
|
| 2098 |
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
| 2099 |
|
|
|
| 2100 |
|
|
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
|
| 2101 |
|
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
| 2102 |
|
|
{
|
| 2103 |
|
|
asection *s = p->sec->output_section;
|
| 2104 |
|
|
|
| 2105 |
|
|
if (s != NULL && (s->flags & SEC_READONLY) != 0)
|
| 2106 |
|
|
{
|
| 2107 |
|
|
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
| 2108 |
|
|
|
| 2109 |
|
|
info->flags |= DF_TEXTREL;
|
| 2110 |
|
|
|
| 2111 |
|
|
/* Not an error, just cut short the traversal. */
|
| 2112 |
|
|
return FALSE;
|
| 2113 |
|
|
}
|
| 2114 |
|
|
}
|
| 2115 |
|
|
return TRUE;
|
| 2116 |
|
|
}
|
| 2117 |
|
|
|
| 2118 |
|
|
/* Return true if the dynamic symbol for a given section should be
|
| 2119 |
|
|
omitted when creating a shared library. */
|
| 2120 |
|
|
|
| 2121 |
|
|
bfd_boolean
|
| 2122 |
|
|
_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
|
| 2123 |
|
|
struct bfd_link_info *info,
|
| 2124 |
|
|
asection *p)
|
| 2125 |
|
|
{
|
| 2126 |
|
|
/* We keep the .got section symbol so that explicit relocations
|
| 2127 |
|
|
against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
|
| 2128 |
|
|
can be turned into relocations against the .got symbol. */
|
| 2129 |
|
|
if (strcmp (p->name, ".got") == 0)
|
| 2130 |
|
|
return FALSE;
|
| 2131 |
|
|
|
| 2132 |
|
|
return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
|
| 2133 |
|
|
}
|
| 2134 |
|
|
|
| 2135 |
|
|
/* Set the sizes of the dynamic sections. */
|
| 2136 |
|
|
|
| 2137 |
|
|
bfd_boolean
|
| 2138 |
|
|
_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
|
| 2139 |
|
|
struct bfd_link_info *info)
|
| 2140 |
|
|
{
|
| 2141 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 2142 |
|
|
bfd *dynobj;
|
| 2143 |
|
|
asection *s;
|
| 2144 |
|
|
bfd *ibfd;
|
| 2145 |
|
|
|
| 2146 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 2147 |
|
|
dynobj = htab->elf.dynobj;
|
| 2148 |
|
|
BFD_ASSERT (dynobj != NULL);
|
| 2149 |
|
|
|
| 2150 |
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
| 2151 |
|
|
{
|
| 2152 |
|
|
/* Set the contents of the .interp section to the interpreter. */
|
| 2153 |
|
|
if (info->executable)
|
| 2154 |
|
|
{
|
| 2155 |
|
|
s = bfd_get_section_by_name (dynobj, ".interp");
|
| 2156 |
|
|
BFD_ASSERT (s != NULL);
|
| 2157 |
|
|
s->size = htab->dynamic_interpreter_size;
|
| 2158 |
|
|
s->contents = (unsigned char *) htab->dynamic_interpreter;
|
| 2159 |
|
|
}
|
| 2160 |
|
|
}
|
| 2161 |
|
|
|
| 2162 |
|
|
/* Set up .got offsets for local syms, and space for local dynamic
|
| 2163 |
|
|
relocs. */
|
| 2164 |
|
|
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
|
| 2165 |
|
|
{
|
| 2166 |
|
|
bfd_signed_vma *local_got;
|
| 2167 |
|
|
bfd_signed_vma *end_local_got;
|
| 2168 |
|
|
char *local_tls_type;
|
| 2169 |
|
|
bfd_size_type locsymcount;
|
| 2170 |
|
|
Elf_Internal_Shdr *symtab_hdr;
|
| 2171 |
|
|
asection *srel;
|
| 2172 |
|
|
|
| 2173 |
|
|
if (! is_sparc_elf (ibfd))
|
| 2174 |
|
|
continue;
|
| 2175 |
|
|
|
| 2176 |
|
|
for (s = ibfd->sections; s != NULL; s = s->next)
|
| 2177 |
|
|
{
|
| 2178 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
| 2179 |
|
|
|
| 2180 |
|
|
for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
|
| 2181 |
|
|
{
|
| 2182 |
|
|
if (!bfd_is_abs_section (p->sec)
|
| 2183 |
|
|
&& bfd_is_abs_section (p->sec->output_section))
|
| 2184 |
|
|
{
|
| 2185 |
|
|
/* Input section has been discarded, either because
|
| 2186 |
|
|
it is a copy of a linkonce section or due to
|
| 2187 |
|
|
linker script /DISCARD/, so we'll be discarding
|
| 2188 |
|
|
the relocs too. */
|
| 2189 |
|
|
}
|
| 2190 |
225 |
jeremybenn |
else if (htab->is_vxworks
|
| 2191 |
|
|
&& strcmp (p->sec->output_section->name,
|
| 2192 |
|
|
".tls_vars") == 0)
|
| 2193 |
|
|
{
|
| 2194 |
|
|
/* Relocations in vxworks .tls_vars sections are
|
| 2195 |
|
|
handled specially by the loader. */
|
| 2196 |
|
|
}
|
| 2197 |
24 |
jeremybenn |
else if (p->count != 0)
|
| 2198 |
|
|
{
|
| 2199 |
|
|
srel = elf_section_data (p->sec)->sreloc;
|
| 2200 |
|
|
srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
|
| 2201 |
|
|
if ((p->sec->output_section->flags & SEC_READONLY) != 0)
|
| 2202 |
|
|
info->flags |= DF_TEXTREL;
|
| 2203 |
|
|
}
|
| 2204 |
|
|
}
|
| 2205 |
|
|
}
|
| 2206 |
|
|
|
| 2207 |
|
|
local_got = elf_local_got_refcounts (ibfd);
|
| 2208 |
|
|
if (!local_got)
|
| 2209 |
|
|
continue;
|
| 2210 |
|
|
|
| 2211 |
|
|
symtab_hdr = &elf_symtab_hdr (ibfd);
|
| 2212 |
|
|
locsymcount = symtab_hdr->sh_info;
|
| 2213 |
|
|
end_local_got = local_got + locsymcount;
|
| 2214 |
|
|
local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
|
| 2215 |
|
|
s = htab->sgot;
|
| 2216 |
|
|
srel = htab->srelgot;
|
| 2217 |
|
|
for (; local_got < end_local_got; ++local_got, ++local_tls_type)
|
| 2218 |
|
|
{
|
| 2219 |
|
|
if (*local_got > 0)
|
| 2220 |
|
|
{
|
| 2221 |
|
|
*local_got = s->size;
|
| 2222 |
|
|
s->size += SPARC_ELF_WORD_BYTES (htab);
|
| 2223 |
|
|
if (*local_tls_type == GOT_TLS_GD)
|
| 2224 |
|
|
s->size += SPARC_ELF_WORD_BYTES (htab);
|
| 2225 |
|
|
if (info->shared
|
| 2226 |
|
|
|| *local_tls_type == GOT_TLS_GD
|
| 2227 |
|
|
|| *local_tls_type == GOT_TLS_IE)
|
| 2228 |
|
|
srel->size += SPARC_ELF_RELA_BYTES (htab);
|
| 2229 |
|
|
}
|
| 2230 |
|
|
else
|
| 2231 |
|
|
*local_got = (bfd_vma) -1;
|
| 2232 |
|
|
}
|
| 2233 |
|
|
}
|
| 2234 |
|
|
|
| 2235 |
|
|
if (htab->tls_ldm_got.refcount > 0)
|
| 2236 |
|
|
{
|
| 2237 |
|
|
/* Allocate 2 got entries and 1 dynamic reloc for
|
| 2238 |
|
|
R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
|
| 2239 |
|
|
htab->tls_ldm_got.offset = htab->sgot->size;
|
| 2240 |
|
|
htab->sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
|
| 2241 |
|
|
htab->srelgot->size += SPARC_ELF_RELA_BYTES (htab);
|
| 2242 |
|
|
}
|
| 2243 |
|
|
else
|
| 2244 |
|
|
htab->tls_ldm_got.offset = -1;
|
| 2245 |
|
|
|
| 2246 |
|
|
/* Allocate global sym .plt and .got entries, and space for global
|
| 2247 |
|
|
sym dynamic relocs. */
|
| 2248 |
|
|
elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
|
| 2249 |
|
|
|
| 2250 |
|
|
if (! ABI_64_P (output_bfd)
|
| 2251 |
|
|
&& !htab->is_vxworks
|
| 2252 |
|
|
&& elf_hash_table (info)->dynamic_sections_created)
|
| 2253 |
|
|
{
|
| 2254 |
|
|
/* Make space for the trailing nop in .plt. */
|
| 2255 |
|
|
if (htab->splt->size > 0)
|
| 2256 |
|
|
htab->splt->size += 1 * SPARC_INSN_BYTES;
|
| 2257 |
|
|
|
| 2258 |
|
|
/* If the .got section is more than 0x1000 bytes, we add
|
| 2259 |
|
|
0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
|
| 2260 |
|
|
bit relocations have a greater chance of working.
|
| 2261 |
|
|
|
| 2262 |
|
|
FIXME: Make this optimization work for 64-bit too. */
|
| 2263 |
|
|
if (htab->sgot->size >= 0x1000
|
| 2264 |
|
|
&& elf_hash_table (info)->hgot->root.u.def.value == 0)
|
| 2265 |
|
|
elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
|
| 2266 |
|
|
}
|
| 2267 |
|
|
|
| 2268 |
|
|
/* The check_relocs and adjust_dynamic_symbol entry points have
|
| 2269 |
|
|
determined the sizes of the various dynamic sections. Allocate
|
| 2270 |
|
|
memory for them. */
|
| 2271 |
|
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
| 2272 |
|
|
{
|
| 2273 |
|
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
| 2274 |
|
|
continue;
|
| 2275 |
|
|
|
| 2276 |
|
|
if (s == htab->splt
|
| 2277 |
|
|
|| s == htab->sgot
|
| 2278 |
|
|
|| s == htab->sdynbss
|
| 2279 |
|
|
|| s == htab->sgotplt)
|
| 2280 |
|
|
{
|
| 2281 |
|
|
/* Strip this section if we don't need it; see the
|
| 2282 |
|
|
comment below. */
|
| 2283 |
|
|
}
|
| 2284 |
|
|
else if (CONST_STRNEQ (s->name, ".rela"))
|
| 2285 |
|
|
{
|
| 2286 |
|
|
if (s->size != 0)
|
| 2287 |
|
|
{
|
| 2288 |
|
|
/* We use the reloc_count field as a counter if we need
|
| 2289 |
|
|
to copy relocs into the output file. */
|
| 2290 |
|
|
s->reloc_count = 0;
|
| 2291 |
|
|
}
|
| 2292 |
|
|
}
|
| 2293 |
|
|
else
|
| 2294 |
|
|
{
|
| 2295 |
|
|
/* It's not one of our sections. */
|
| 2296 |
|
|
continue;
|
| 2297 |
|
|
}
|
| 2298 |
|
|
|
| 2299 |
|
|
if (s->size == 0)
|
| 2300 |
|
|
{
|
| 2301 |
|
|
/* If we don't need this section, strip it from the
|
| 2302 |
|
|
output file. This is mostly to handle .rela.bss and
|
| 2303 |
|
|
.rela.plt. We must create both sections in
|
| 2304 |
|
|
create_dynamic_sections, because they must be created
|
| 2305 |
|
|
before the linker maps input sections to output
|
| 2306 |
|
|
sections. The linker does that before
|
| 2307 |
|
|
adjust_dynamic_symbol is called, and it is that
|
| 2308 |
|
|
function which decides whether anything needs to go
|
| 2309 |
|
|
into these sections. */
|
| 2310 |
|
|
s->flags |= SEC_EXCLUDE;
|
| 2311 |
|
|
continue;
|
| 2312 |
|
|
}
|
| 2313 |
|
|
|
| 2314 |
|
|
if ((s->flags & SEC_HAS_CONTENTS) == 0)
|
| 2315 |
|
|
continue;
|
| 2316 |
|
|
|
| 2317 |
|
|
/* Allocate memory for the section contents. Zero the memory
|
| 2318 |
|
|
for the benefit of .rela.plt, which has 4 unused entries
|
| 2319 |
|
|
at the beginning, and we don't want garbage. */
|
| 2320 |
|
|
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
|
| 2321 |
|
|
if (s->contents == NULL)
|
| 2322 |
|
|
return FALSE;
|
| 2323 |
|
|
}
|
| 2324 |
|
|
|
| 2325 |
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
| 2326 |
|
|
{
|
| 2327 |
|
|
/* Add some entries to the .dynamic section. We fill in the
|
| 2328 |
|
|
values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
|
| 2329 |
|
|
must add the entries now so that we get the correct size for
|
| 2330 |
|
|
the .dynamic section. The DT_DEBUG entry is filled in by the
|
| 2331 |
|
|
dynamic linker and used by the debugger. */
|
| 2332 |
|
|
#define add_dynamic_entry(TAG, VAL) \
|
| 2333 |
|
|
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
|
| 2334 |
|
|
|
| 2335 |
|
|
if (info->executable)
|
| 2336 |
|
|
{
|
| 2337 |
|
|
if (!add_dynamic_entry (DT_DEBUG, 0))
|
| 2338 |
|
|
return FALSE;
|
| 2339 |
|
|
}
|
| 2340 |
|
|
|
| 2341 |
|
|
if (htab->srelplt->size != 0)
|
| 2342 |
|
|
{
|
| 2343 |
|
|
if (!add_dynamic_entry (DT_PLTGOT, 0)
|
| 2344 |
|
|
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|
| 2345 |
|
|
|| !add_dynamic_entry (DT_PLTREL, DT_RELA)
|
| 2346 |
|
|
|| !add_dynamic_entry (DT_JMPREL, 0))
|
| 2347 |
|
|
return FALSE;
|
| 2348 |
|
|
}
|
| 2349 |
|
|
|
| 2350 |
|
|
if (!add_dynamic_entry (DT_RELA, 0)
|
| 2351 |
|
|
|| !add_dynamic_entry (DT_RELASZ, 0)
|
| 2352 |
|
|
|| !add_dynamic_entry (DT_RELAENT,
|
| 2353 |
|
|
SPARC_ELF_RELA_BYTES (htab)))
|
| 2354 |
|
|
return FALSE;
|
| 2355 |
|
|
|
| 2356 |
|
|
/* If any dynamic relocs apply to a read-only section,
|
| 2357 |
|
|
then we need a DT_TEXTREL entry. */
|
| 2358 |
|
|
if ((info->flags & DF_TEXTREL) == 0)
|
| 2359 |
|
|
elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
|
| 2360 |
|
|
(PTR) info);
|
| 2361 |
|
|
|
| 2362 |
|
|
if (info->flags & DF_TEXTREL)
|
| 2363 |
|
|
{
|
| 2364 |
|
|
if (!add_dynamic_entry (DT_TEXTREL, 0))
|
| 2365 |
|
|
return FALSE;
|
| 2366 |
|
|
}
|
| 2367 |
|
|
|
| 2368 |
|
|
if (ABI_64_P (output_bfd))
|
| 2369 |
|
|
{
|
| 2370 |
|
|
int reg;
|
| 2371 |
|
|
struct _bfd_sparc_elf_app_reg * app_regs;
|
| 2372 |
|
|
struct elf_strtab_hash *dynstr;
|
| 2373 |
|
|
struct elf_link_hash_table *eht = elf_hash_table (info);
|
| 2374 |
|
|
|
| 2375 |
|
|
/* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
|
| 2376 |
|
|
entries if needed. */
|
| 2377 |
|
|
app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
|
| 2378 |
|
|
dynstr = eht->dynstr;
|
| 2379 |
|
|
|
| 2380 |
|
|
for (reg = 0; reg < 4; reg++)
|
| 2381 |
|
|
if (app_regs [reg].name != NULL)
|
| 2382 |
|
|
{
|
| 2383 |
|
|
struct elf_link_local_dynamic_entry *entry, *e;
|
| 2384 |
|
|
|
| 2385 |
|
|
if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
|
| 2386 |
|
|
return FALSE;
|
| 2387 |
|
|
|
| 2388 |
|
|
entry = (struct elf_link_local_dynamic_entry *)
|
| 2389 |
|
|
bfd_hash_allocate (&info->hash->table, sizeof (*entry));
|
| 2390 |
|
|
if (entry == NULL)
|
| 2391 |
|
|
return FALSE;
|
| 2392 |
|
|
|
| 2393 |
|
|
/* We cheat here a little bit: the symbol will not be local, so we
|
| 2394 |
|
|
put it at the end of the dynlocal linked list. We will fix it
|
| 2395 |
|
|
later on, as we have to fix other fields anyway. */
|
| 2396 |
|
|
entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
|
| 2397 |
|
|
entry->isym.st_size = 0;
|
| 2398 |
|
|
if (*app_regs [reg].name != '\0')
|
| 2399 |
|
|
entry->isym.st_name
|
| 2400 |
|
|
= _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
|
| 2401 |
|
|
else
|
| 2402 |
|
|
entry->isym.st_name = 0;
|
| 2403 |
|
|
entry->isym.st_other = 0;
|
| 2404 |
|
|
entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
|
| 2405 |
|
|
STT_REGISTER);
|
| 2406 |
|
|
entry->isym.st_shndx = app_regs [reg].shndx;
|
| 2407 |
|
|
entry->next = NULL;
|
| 2408 |
|
|
entry->input_bfd = output_bfd;
|
| 2409 |
|
|
entry->input_indx = -1;
|
| 2410 |
|
|
|
| 2411 |
|
|
if (eht->dynlocal == NULL)
|
| 2412 |
|
|
eht->dynlocal = entry;
|
| 2413 |
|
|
else
|
| 2414 |
|
|
{
|
| 2415 |
|
|
for (e = eht->dynlocal; e->next; e = e->next)
|
| 2416 |
|
|
;
|
| 2417 |
|
|
e->next = entry;
|
| 2418 |
|
|
}
|
| 2419 |
|
|
eht->dynsymcount++;
|
| 2420 |
|
|
}
|
| 2421 |
|
|
}
|
| 2422 |
|
|
if (htab->is_vxworks
|
| 2423 |
|
|
&& !elf_vxworks_add_dynamic_entries (output_bfd, info))
|
| 2424 |
|
|
return FALSE;
|
| 2425 |
|
|
}
|
| 2426 |
|
|
#undef add_dynamic_entry
|
| 2427 |
|
|
|
| 2428 |
|
|
return TRUE;
|
| 2429 |
|
|
}
|
| 2430 |
|
|
|
| 2431 |
|
|
bfd_boolean
|
| 2432 |
|
|
_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
|
| 2433 |
|
|
{
|
| 2434 |
|
|
if (!sec->used_by_bfd)
|
| 2435 |
|
|
{
|
| 2436 |
|
|
struct _bfd_sparc_elf_section_data *sdata;
|
| 2437 |
|
|
bfd_size_type amt = sizeof (*sdata);
|
| 2438 |
|
|
|
| 2439 |
|
|
sdata = bfd_zalloc (abfd, amt);
|
| 2440 |
|
|
if (sdata == NULL)
|
| 2441 |
|
|
return FALSE;
|
| 2442 |
|
|
sec->used_by_bfd = sdata;
|
| 2443 |
|
|
}
|
| 2444 |
|
|
|
| 2445 |
|
|
return _bfd_elf_new_section_hook (abfd, sec);
|
| 2446 |
|
|
}
|
| 2447 |
|
|
|
| 2448 |
|
|
bfd_boolean
|
| 2449 |
|
|
_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
|
| 2450 |
|
|
struct bfd_section *section,
|
| 2451 |
|
|
struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
|
| 2452 |
|
|
bfd_boolean *again)
|
| 2453 |
|
|
{
|
| 2454 |
225 |
jeremybenn |
if (link_info->relocatable)
|
| 2455 |
|
|
(*link_info->callbacks->einfo)
|
| 2456 |
|
|
(_("%P%F: --relax and -r may not be used together\n"));
|
| 2457 |
|
|
|
| 2458 |
24 |
jeremybenn |
*again = FALSE;
|
| 2459 |
|
|
sec_do_relax (section) = 1;
|
| 2460 |
|
|
return TRUE;
|
| 2461 |
|
|
}
|
| 2462 |
|
|
|
| 2463 |
|
|
/* Return the base VMA address which should be subtracted from real addresses
|
| 2464 |
|
|
when resolving @dtpoff relocation.
|
| 2465 |
|
|
This is PT_TLS segment p_vaddr. */
|
| 2466 |
|
|
|
| 2467 |
|
|
static bfd_vma
|
| 2468 |
|
|
dtpoff_base (struct bfd_link_info *info)
|
| 2469 |
|
|
{
|
| 2470 |
|
|
/* If tls_sec is NULL, we should have signalled an error already. */
|
| 2471 |
|
|
if (elf_hash_table (info)->tls_sec == NULL)
|
| 2472 |
|
|
return 0;
|
| 2473 |
|
|
return elf_hash_table (info)->tls_sec->vma;
|
| 2474 |
|
|
}
|
| 2475 |
|
|
|
| 2476 |
|
|
/* Return the relocation value for @tpoff relocation
|
| 2477 |
|
|
if STT_TLS virtual address is ADDRESS. */
|
| 2478 |
|
|
|
| 2479 |
|
|
static bfd_vma
|
| 2480 |
|
|
tpoff (struct bfd_link_info *info, bfd_vma address)
|
| 2481 |
|
|
{
|
| 2482 |
|
|
struct elf_link_hash_table *htab = elf_hash_table (info);
|
| 2483 |
|
|
|
| 2484 |
|
|
/* If tls_sec is NULL, we should have signalled an error already. */
|
| 2485 |
|
|
if (htab->tls_sec == NULL)
|
| 2486 |
|
|
return 0;
|
| 2487 |
|
|
return address - htab->tls_size - htab->tls_sec->vma;
|
| 2488 |
|
|
}
|
| 2489 |
|
|
|
| 2490 |
|
|
/* Relocate a SPARC ELF section. */
|
| 2491 |
|
|
|
| 2492 |
|
|
bfd_boolean
|
| 2493 |
|
|
_bfd_sparc_elf_relocate_section (bfd *output_bfd,
|
| 2494 |
|
|
struct bfd_link_info *info,
|
| 2495 |
|
|
bfd *input_bfd,
|
| 2496 |
|
|
asection *input_section,
|
| 2497 |
|
|
bfd_byte *contents,
|
| 2498 |
|
|
Elf_Internal_Rela *relocs,
|
| 2499 |
|
|
Elf_Internal_Sym *local_syms,
|
| 2500 |
|
|
asection **local_sections)
|
| 2501 |
|
|
{
|
| 2502 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 2503 |
|
|
Elf_Internal_Shdr *symtab_hdr;
|
| 2504 |
|
|
struct elf_link_hash_entry **sym_hashes;
|
| 2505 |
|
|
bfd_vma *local_got_offsets;
|
| 2506 |
|
|
bfd_vma got_base;
|
| 2507 |
|
|
asection *sreloc;
|
| 2508 |
|
|
Elf_Internal_Rela *rel;
|
| 2509 |
|
|
Elf_Internal_Rela *relend;
|
| 2510 |
|
|
int num_relocs;
|
| 2511 |
225 |
jeremybenn |
bfd_boolean is_vxworks_tls;
|
| 2512 |
24 |
jeremybenn |
|
| 2513 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 2514 |
|
|
symtab_hdr = &elf_symtab_hdr (input_bfd);
|
| 2515 |
|
|
sym_hashes = elf_sym_hashes (input_bfd);
|
| 2516 |
|
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
| 2517 |
|
|
|
| 2518 |
|
|
if (elf_hash_table (info)->hgot == NULL)
|
| 2519 |
|
|
got_base = 0;
|
| 2520 |
|
|
else
|
| 2521 |
|
|
got_base = elf_hash_table (info)->hgot->root.u.def.value;
|
| 2522 |
|
|
|
| 2523 |
|
|
sreloc = elf_section_data (input_section)->sreloc;
|
| 2524 |
225 |
jeremybenn |
/* We have to handle relocations in vxworks .tls_vars sections
|
| 2525 |
|
|
specially, because the dynamic loader is 'weird'. */
|
| 2526 |
|
|
is_vxworks_tls = (htab->is_vxworks && info->shared
|
| 2527 |
|
|
&& !strcmp (input_section->output_section->name,
|
| 2528 |
|
|
".tls_vars"));
|
| 2529 |
24 |
jeremybenn |
|
| 2530 |
|
|
rel = relocs;
|
| 2531 |
|
|
if (ABI_64_P (output_bfd))
|
| 2532 |
|
|
num_relocs = NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr);
|
| 2533 |
|
|
else
|
| 2534 |
|
|
num_relocs = input_section->reloc_count;
|
| 2535 |
|
|
relend = relocs + num_relocs;
|
| 2536 |
|
|
for (; rel < relend; rel++)
|
| 2537 |
|
|
{
|
| 2538 |
|
|
int r_type, tls_type;
|
| 2539 |
|
|
reloc_howto_type *howto;
|
| 2540 |
|
|
unsigned long r_symndx;
|
| 2541 |
|
|
struct elf_link_hash_entry *h;
|
| 2542 |
|
|
Elf_Internal_Sym *sym;
|
| 2543 |
|
|
asection *sec;
|
| 2544 |
|
|
bfd_vma relocation, off;
|
| 2545 |
|
|
bfd_reloc_status_type r;
|
| 2546 |
|
|
bfd_boolean is_plt = FALSE;
|
| 2547 |
|
|
bfd_boolean unresolved_reloc;
|
| 2548 |
|
|
|
| 2549 |
|
|
r_type = SPARC_ELF_R_TYPE (rel->r_info);
|
| 2550 |
|
|
if (r_type == R_SPARC_GNU_VTINHERIT
|
| 2551 |
|
|
|| r_type == R_SPARC_GNU_VTENTRY)
|
| 2552 |
|
|
continue;
|
| 2553 |
|
|
|
| 2554 |
|
|
if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
|
| 2555 |
|
|
{
|
| 2556 |
|
|
bfd_set_error (bfd_error_bad_value);
|
| 2557 |
|
|
return FALSE;
|
| 2558 |
|
|
}
|
| 2559 |
|
|
howto = _bfd_sparc_elf_howto_table + r_type;
|
| 2560 |
|
|
|
| 2561 |
|
|
r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
|
| 2562 |
|
|
h = NULL;
|
| 2563 |
|
|
sym = NULL;
|
| 2564 |
|
|
sec = NULL;
|
| 2565 |
|
|
unresolved_reloc = FALSE;
|
| 2566 |
|
|
if (r_symndx < symtab_hdr->sh_info)
|
| 2567 |
|
|
{
|
| 2568 |
|
|
sym = local_syms + r_symndx;
|
| 2569 |
|
|
sec = local_sections[r_symndx];
|
| 2570 |
|
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
| 2571 |
|
|
}
|
| 2572 |
|
|
else
|
| 2573 |
|
|
{
|
| 2574 |
|
|
bfd_boolean warned;
|
| 2575 |
|
|
|
| 2576 |
|
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
| 2577 |
|
|
r_symndx, symtab_hdr, sym_hashes,
|
| 2578 |
|
|
h, sec, relocation,
|
| 2579 |
|
|
unresolved_reloc, warned);
|
| 2580 |
|
|
if (warned)
|
| 2581 |
|
|
{
|
| 2582 |
|
|
/* To avoid generating warning messages about truncated
|
| 2583 |
|
|
relocations, set the relocation's address to be the same as
|
| 2584 |
|
|
the start of this section. */
|
| 2585 |
|
|
if (input_section->output_section != NULL)
|
| 2586 |
|
|
relocation = input_section->output_section->vma;
|
| 2587 |
|
|
else
|
| 2588 |
|
|
relocation = 0;
|
| 2589 |
|
|
}
|
| 2590 |
|
|
}
|
| 2591 |
|
|
|
| 2592 |
|
|
if (sec != NULL && elf_discarded_section (sec))
|
| 2593 |
|
|
{
|
| 2594 |
|
|
/* For relocs against symbols from removed linkonce
|
| 2595 |
|
|
sections, or sections discarded by a linker script, we
|
| 2596 |
|
|
just want the section contents zeroed. Avoid any
|
| 2597 |
|
|
special processing. */
|
| 2598 |
|
|
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
|
| 2599 |
|
|
rel->r_info = 0;
|
| 2600 |
|
|
rel->r_addend = 0;
|
| 2601 |
|
|
continue;
|
| 2602 |
|
|
}
|
| 2603 |
|
|
|
| 2604 |
|
|
if (info->relocatable)
|
| 2605 |
|
|
continue;
|
| 2606 |
|
|
|
| 2607 |
|
|
switch (r_type)
|
| 2608 |
|
|
{
|
| 2609 |
225 |
jeremybenn |
case R_SPARC_GOTDATA_HIX22:
|
| 2610 |
|
|
case R_SPARC_GOTDATA_LOX10:
|
| 2611 |
|
|
case R_SPARC_GOTDATA_OP_HIX22:
|
| 2612 |
|
|
case R_SPARC_GOTDATA_OP_LOX10:
|
| 2613 |
|
|
/* We don't support these code transformation optimizations
|
| 2614 |
|
|
yet, so just leave the sequence alone and treat as
|
| 2615 |
|
|
GOT22/GOT10. */
|
| 2616 |
|
|
if (r_type == R_SPARC_GOTDATA_HIX22
|
| 2617 |
|
|
|| r_type == R_SPARC_GOTDATA_OP_HIX22)
|
| 2618 |
|
|
r_type = R_SPARC_GOT22;
|
| 2619 |
|
|
else
|
| 2620 |
|
|
r_type = R_SPARC_GOT10;
|
| 2621 |
|
|
/* Fall through. */
|
| 2622 |
|
|
|
| 2623 |
24 |
jeremybenn |
case R_SPARC_GOT10:
|
| 2624 |
|
|
case R_SPARC_GOT13:
|
| 2625 |
|
|
case R_SPARC_GOT22:
|
| 2626 |
|
|
/* Relocation is to the entry for this symbol in the global
|
| 2627 |
|
|
offset table. */
|
| 2628 |
|
|
if (htab->sgot == NULL)
|
| 2629 |
|
|
abort ();
|
| 2630 |
|
|
|
| 2631 |
|
|
if (h != NULL)
|
| 2632 |
|
|
{
|
| 2633 |
|
|
bfd_boolean dyn;
|
| 2634 |
|
|
|
| 2635 |
|
|
off = h->got.offset;
|
| 2636 |
|
|
BFD_ASSERT (off != (bfd_vma) -1);
|
| 2637 |
|
|
dyn = elf_hash_table (info)->dynamic_sections_created;
|
| 2638 |
|
|
|
| 2639 |
|
|
if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|
| 2640 |
|
|
|| (info->shared
|
| 2641 |
|
|
&& (info->symbolic
|
| 2642 |
|
|
|| h->dynindx == -1
|
| 2643 |
|
|
|| h->forced_local)
|
| 2644 |
|
|
&& h->def_regular))
|
| 2645 |
|
|
{
|
| 2646 |
|
|
/* This is actually a static link, or it is a
|
| 2647 |
|
|
-Bsymbolic link and the symbol is defined
|
| 2648 |
|
|
locally, or the symbol was forced to be local
|
| 2649 |
|
|
because of a version file. We must initialize
|
| 2650 |
|
|
this entry in the global offset table. Since the
|
| 2651 |
|
|
offset must always be a multiple of 8 for 64-bit
|
| 2652 |
|
|
and 4 for 32-bit, we use the least significant bit
|
| 2653 |
|
|
to record whether we have initialized it already.
|
| 2654 |
|
|
|
| 2655 |
|
|
When doing a dynamic link, we create a .rela.got
|
| 2656 |
|
|
relocation entry to initialize the value. This
|
| 2657 |
|
|
is done in the finish_dynamic_symbol routine. */
|
| 2658 |
|
|
if ((off & 1) != 0)
|
| 2659 |
|
|
off &= ~1;
|
| 2660 |
|
|
else
|
| 2661 |
|
|
{
|
| 2662 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
|
| 2663 |
|
|
htab->sgot->contents + off);
|
| 2664 |
|
|
h->got.offset |= 1;
|
| 2665 |
|
|
}
|
| 2666 |
|
|
}
|
| 2667 |
|
|
else
|
| 2668 |
|
|
unresolved_reloc = FALSE;
|
| 2669 |
|
|
}
|
| 2670 |
|
|
else
|
| 2671 |
|
|
{
|
| 2672 |
|
|
BFD_ASSERT (local_got_offsets != NULL
|
| 2673 |
|
|
&& local_got_offsets[r_symndx] != (bfd_vma) -1);
|
| 2674 |
|
|
|
| 2675 |
|
|
off = local_got_offsets[r_symndx];
|
| 2676 |
|
|
|
| 2677 |
|
|
/* The offset must always be a multiple of 8 on 64-bit and
|
| 2678 |
|
|
4 on 32-bit. We use the least significant bit to record
|
| 2679 |
|
|
whether we have already processed this entry. */
|
| 2680 |
|
|
if ((off & 1) != 0)
|
| 2681 |
|
|
off &= ~1;
|
| 2682 |
|
|
else
|
| 2683 |
|
|
{
|
| 2684 |
|
|
|
| 2685 |
|
|
if (info->shared)
|
| 2686 |
|
|
{
|
| 2687 |
|
|
asection *s;
|
| 2688 |
|
|
Elf_Internal_Rela outrel;
|
| 2689 |
|
|
|
| 2690 |
|
|
/* We need to generate a R_SPARC_RELATIVE reloc
|
| 2691 |
|
|
for the dynamic linker. */
|
| 2692 |
|
|
s = htab->srelgot;
|
| 2693 |
|
|
BFD_ASSERT (s != NULL);
|
| 2694 |
|
|
|
| 2695 |
|
|
outrel.r_offset = (htab->sgot->output_section->vma
|
| 2696 |
|
|
+ htab->sgot->output_offset
|
| 2697 |
|
|
+ off);
|
| 2698 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
|
| 2699 |
|
|
0, R_SPARC_RELATIVE);
|
| 2700 |
|
|
outrel.r_addend = relocation;
|
| 2701 |
|
|
relocation = 0;
|
| 2702 |
|
|
sparc_elf_append_rela (output_bfd, s, &outrel);
|
| 2703 |
|
|
}
|
| 2704 |
|
|
|
| 2705 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
|
| 2706 |
|
|
htab->sgot->contents + off);
|
| 2707 |
|
|
local_got_offsets[r_symndx] |= 1;
|
| 2708 |
|
|
}
|
| 2709 |
|
|
}
|
| 2710 |
|
|
relocation = htab->sgot->output_offset + off - got_base;
|
| 2711 |
|
|
break;
|
| 2712 |
|
|
|
| 2713 |
|
|
case R_SPARC_PLT32:
|
| 2714 |
|
|
case R_SPARC_PLT64:
|
| 2715 |
|
|
if (h == NULL || h->plt.offset == (bfd_vma) -1)
|
| 2716 |
|
|
{
|
| 2717 |
|
|
r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
|
| 2718 |
|
|
goto r_sparc_plt32;
|
| 2719 |
|
|
}
|
| 2720 |
|
|
/* Fall through. */
|
| 2721 |
|
|
|
| 2722 |
|
|
case R_SPARC_WPLT30:
|
| 2723 |
|
|
case R_SPARC_HIPLT22:
|
| 2724 |
|
|
case R_SPARC_LOPLT10:
|
| 2725 |
|
|
case R_SPARC_PCPLT32:
|
| 2726 |
|
|
case R_SPARC_PCPLT22:
|
| 2727 |
|
|
case R_SPARC_PCPLT10:
|
| 2728 |
|
|
r_sparc_wplt30:
|
| 2729 |
|
|
/* Relocation is to the entry for this symbol in the
|
| 2730 |
|
|
procedure linkage table. */
|
| 2731 |
|
|
|
| 2732 |
|
|
if (! ABI_64_P (output_bfd))
|
| 2733 |
|
|
{
|
| 2734 |
|
|
/* The Solaris native assembler will generate a WPLT30 reloc
|
| 2735 |
|
|
for a local symbol if you assemble a call from one
|
| 2736 |
|
|
section to another when using -K pic. We treat it as
|
| 2737 |
|
|
WDISP30. */
|
| 2738 |
|
|
if (h == NULL)
|
| 2739 |
|
|
break;
|
| 2740 |
|
|
}
|
| 2741 |
225 |
jeremybenn |
/* PR 7027: We need similar behaviour for 64-bit binaries. */
|
| 2742 |
|
|
else if (r_type == R_SPARC_WPLT30 && h == NULL)
|
| 2743 |
|
|
break;
|
| 2744 |
24 |
jeremybenn |
else
|
| 2745 |
|
|
{
|
| 2746 |
|
|
BFD_ASSERT (h != NULL);
|
| 2747 |
|
|
}
|
| 2748 |
|
|
|
| 2749 |
|
|
if (h->plt.offset == (bfd_vma) -1 || htab->splt == NULL)
|
| 2750 |
|
|
{
|
| 2751 |
|
|
/* We didn't make a PLT entry for this symbol. This
|
| 2752 |
|
|
happens when statically linking PIC code, or when
|
| 2753 |
|
|
using -Bsymbolic. */
|
| 2754 |
|
|
break;
|
| 2755 |
|
|
}
|
| 2756 |
|
|
|
| 2757 |
|
|
relocation = (htab->splt->output_section->vma
|
| 2758 |
|
|
+ htab->splt->output_offset
|
| 2759 |
|
|
+ h->plt.offset);
|
| 2760 |
|
|
unresolved_reloc = FALSE;
|
| 2761 |
|
|
if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
|
| 2762 |
|
|
{
|
| 2763 |
|
|
r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
|
| 2764 |
|
|
is_plt = TRUE;
|
| 2765 |
|
|
goto r_sparc_plt32;
|
| 2766 |
|
|
}
|
| 2767 |
|
|
break;
|
| 2768 |
|
|
|
| 2769 |
|
|
case R_SPARC_PC10:
|
| 2770 |
|
|
case R_SPARC_PC22:
|
| 2771 |
|
|
case R_SPARC_PC_HH22:
|
| 2772 |
|
|
case R_SPARC_PC_HM10:
|
| 2773 |
|
|
case R_SPARC_PC_LM22:
|
| 2774 |
|
|
if (h != NULL
|
| 2775 |
|
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
| 2776 |
|
|
break;
|
| 2777 |
|
|
/* Fall through. */
|
| 2778 |
|
|
case R_SPARC_DISP8:
|
| 2779 |
|
|
case R_SPARC_DISP16:
|
| 2780 |
|
|
case R_SPARC_DISP32:
|
| 2781 |
|
|
case R_SPARC_DISP64:
|
| 2782 |
|
|
case R_SPARC_WDISP30:
|
| 2783 |
|
|
case R_SPARC_WDISP22:
|
| 2784 |
|
|
case R_SPARC_WDISP19:
|
| 2785 |
|
|
case R_SPARC_WDISP16:
|
| 2786 |
|
|
case R_SPARC_8:
|
| 2787 |
|
|
case R_SPARC_16:
|
| 2788 |
|
|
case R_SPARC_32:
|
| 2789 |
|
|
case R_SPARC_HI22:
|
| 2790 |
|
|
case R_SPARC_22:
|
| 2791 |
|
|
case R_SPARC_13:
|
| 2792 |
|
|
case R_SPARC_LO10:
|
| 2793 |
|
|
case R_SPARC_UA16:
|
| 2794 |
|
|
case R_SPARC_UA32:
|
| 2795 |
|
|
case R_SPARC_10:
|
| 2796 |
|
|
case R_SPARC_11:
|
| 2797 |
|
|
case R_SPARC_64:
|
| 2798 |
|
|
case R_SPARC_OLO10:
|
| 2799 |
|
|
case R_SPARC_HH22:
|
| 2800 |
|
|
case R_SPARC_HM10:
|
| 2801 |
|
|
case R_SPARC_LM22:
|
| 2802 |
|
|
case R_SPARC_7:
|
| 2803 |
|
|
case R_SPARC_5:
|
| 2804 |
|
|
case R_SPARC_6:
|
| 2805 |
|
|
case R_SPARC_HIX22:
|
| 2806 |
|
|
case R_SPARC_LOX10:
|
| 2807 |
|
|
case R_SPARC_H44:
|
| 2808 |
|
|
case R_SPARC_M44:
|
| 2809 |
|
|
case R_SPARC_L44:
|
| 2810 |
|
|
case R_SPARC_UA64:
|
| 2811 |
|
|
r_sparc_plt32:
|
| 2812 |
225 |
jeremybenn |
if ((input_section->flags & SEC_ALLOC) == 0
|
| 2813 |
|
|
|| is_vxworks_tls)
|
| 2814 |
24 |
jeremybenn |
break;
|
| 2815 |
|
|
|
| 2816 |
|
|
if ((info->shared
|
| 2817 |
|
|
&& (h == NULL
|
| 2818 |
|
|
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
| 2819 |
|
|
|| h->root.type != bfd_link_hash_undefweak)
|
| 2820 |
|
|
&& (! howto->pc_relative
|
| 2821 |
|
|
|| (h != NULL
|
| 2822 |
|
|
&& h->dynindx != -1
|
| 2823 |
|
|
&& (! info->symbolic
|
| 2824 |
|
|
|| !h->def_regular))))
|
| 2825 |
|
|
|| (!info->shared
|
| 2826 |
|
|
&& h != NULL
|
| 2827 |
|
|
&& h->dynindx != -1
|
| 2828 |
|
|
&& !h->non_got_ref
|
| 2829 |
|
|
&& ((h->def_dynamic
|
| 2830 |
|
|
&& !h->def_regular)
|
| 2831 |
|
|
|| h->root.type == bfd_link_hash_undefweak
|
| 2832 |
|
|
|| h->root.type == bfd_link_hash_undefined)))
|
| 2833 |
|
|
{
|
| 2834 |
|
|
Elf_Internal_Rela outrel;
|
| 2835 |
|
|
bfd_boolean skip, relocate = FALSE;
|
| 2836 |
|
|
|
| 2837 |
|
|
/* When generating a shared object, these relocations
|
| 2838 |
|
|
are copied into the output file to be resolved at run
|
| 2839 |
|
|
time. */
|
| 2840 |
|
|
|
| 2841 |
|
|
BFD_ASSERT (sreloc != NULL);
|
| 2842 |
|
|
|
| 2843 |
|
|
skip = FALSE;
|
| 2844 |
|
|
|
| 2845 |
|
|
outrel.r_offset =
|
| 2846 |
|
|
_bfd_elf_section_offset (output_bfd, info, input_section,
|
| 2847 |
|
|
rel->r_offset);
|
| 2848 |
|
|
if (outrel.r_offset == (bfd_vma) -1)
|
| 2849 |
|
|
skip = TRUE;
|
| 2850 |
|
|
else if (outrel.r_offset == (bfd_vma) -2)
|
| 2851 |
|
|
skip = TRUE, relocate = TRUE;
|
| 2852 |
|
|
outrel.r_offset += (input_section->output_section->vma
|
| 2853 |
|
|
+ input_section->output_offset);
|
| 2854 |
|
|
|
| 2855 |
|
|
/* Optimize unaligned reloc usage now that we know where
|
| 2856 |
|
|
it finally resides. */
|
| 2857 |
|
|
switch (r_type)
|
| 2858 |
|
|
{
|
| 2859 |
|
|
case R_SPARC_16:
|
| 2860 |
|
|
if (outrel.r_offset & 1)
|
| 2861 |
|
|
r_type = R_SPARC_UA16;
|
| 2862 |
|
|
break;
|
| 2863 |
|
|
case R_SPARC_UA16:
|
| 2864 |
|
|
if (!(outrel.r_offset & 1))
|
| 2865 |
|
|
r_type = R_SPARC_16;
|
| 2866 |
|
|
break;
|
| 2867 |
|
|
case R_SPARC_32:
|
| 2868 |
|
|
if (outrel.r_offset & 3)
|
| 2869 |
|
|
r_type = R_SPARC_UA32;
|
| 2870 |
|
|
break;
|
| 2871 |
|
|
case R_SPARC_UA32:
|
| 2872 |
|
|
if (!(outrel.r_offset & 3))
|
| 2873 |
|
|
r_type = R_SPARC_32;
|
| 2874 |
|
|
break;
|
| 2875 |
|
|
case R_SPARC_64:
|
| 2876 |
|
|
if (outrel.r_offset & 7)
|
| 2877 |
|
|
r_type = R_SPARC_UA64;
|
| 2878 |
|
|
break;
|
| 2879 |
|
|
case R_SPARC_UA64:
|
| 2880 |
|
|
if (!(outrel.r_offset & 7))
|
| 2881 |
|
|
r_type = R_SPARC_64;
|
| 2882 |
|
|
break;
|
| 2883 |
|
|
case R_SPARC_DISP8:
|
| 2884 |
|
|
case R_SPARC_DISP16:
|
| 2885 |
|
|
case R_SPARC_DISP32:
|
| 2886 |
|
|
case R_SPARC_DISP64:
|
| 2887 |
|
|
/* If the symbol is not dynamic, we should not keep
|
| 2888 |
|
|
a dynamic relocation. But an .rela.* slot has been
|
| 2889 |
|
|
allocated for it, output R_SPARC_NONE.
|
| 2890 |
|
|
FIXME: Add code tracking needed dynamic relocs as
|
| 2891 |
|
|
e.g. i386 has. */
|
| 2892 |
|
|
if (h->dynindx == -1)
|
| 2893 |
|
|
skip = TRUE, relocate = TRUE;
|
| 2894 |
|
|
break;
|
| 2895 |
|
|
}
|
| 2896 |
|
|
|
| 2897 |
|
|
if (skip)
|
| 2898 |
|
|
memset (&outrel, 0, sizeof outrel);
|
| 2899 |
|
|
/* h->dynindx may be -1 if the symbol was marked to
|
| 2900 |
|
|
become local. */
|
| 2901 |
|
|
else if (h != NULL && ! is_plt
|
| 2902 |
|
|
&& ((! info->symbolic && h->dynindx != -1)
|
| 2903 |
|
|
|| !h->def_regular))
|
| 2904 |
|
|
{
|
| 2905 |
|
|
BFD_ASSERT (h->dynindx != -1);
|
| 2906 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
|
| 2907 |
|
|
outrel.r_addend = rel->r_addend;
|
| 2908 |
|
|
}
|
| 2909 |
|
|
else
|
| 2910 |
|
|
{
|
| 2911 |
|
|
if (r_type == R_SPARC_32 || r_type == R_SPARC_64)
|
| 2912 |
|
|
{
|
| 2913 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
|
| 2914 |
|
|
0, R_SPARC_RELATIVE);
|
| 2915 |
|
|
outrel.r_addend = relocation + rel->r_addend;
|
| 2916 |
|
|
}
|
| 2917 |
|
|
else
|
| 2918 |
|
|
{
|
| 2919 |
|
|
long indx;
|
| 2920 |
|
|
|
| 2921 |
|
|
outrel.r_addend = relocation + rel->r_addend;
|
| 2922 |
|
|
|
| 2923 |
|
|
if (is_plt)
|
| 2924 |
|
|
sec = htab->splt;
|
| 2925 |
|
|
|
| 2926 |
|
|
if (bfd_is_abs_section (sec))
|
| 2927 |
|
|
indx = 0;
|
| 2928 |
|
|
else if (sec == NULL || sec->owner == NULL)
|
| 2929 |
|
|
{
|
| 2930 |
|
|
bfd_set_error (bfd_error_bad_value);
|
| 2931 |
|
|
return FALSE;
|
| 2932 |
|
|
}
|
| 2933 |
|
|
else
|
| 2934 |
|
|
{
|
| 2935 |
|
|
asection *osec;
|
| 2936 |
|
|
|
| 2937 |
|
|
/* We are turning this relocation into one
|
| 2938 |
|
|
against a section symbol. It would be
|
| 2939 |
|
|
proper to subtract the symbol's value,
|
| 2940 |
|
|
osec->vma, from the emitted reloc addend,
|
| 2941 |
|
|
but ld.so expects buggy relocs. */
|
| 2942 |
|
|
osec = sec->output_section;
|
| 2943 |
|
|
indx = elf_section_data (osec)->dynindx;
|
| 2944 |
|
|
|
| 2945 |
|
|
if (indx == 0)
|
| 2946 |
|
|
{
|
| 2947 |
|
|
osec = htab->elf.text_index_section;
|
| 2948 |
|
|
indx = elf_section_data (osec)->dynindx;
|
| 2949 |
|
|
}
|
| 2950 |
|
|
|
| 2951 |
|
|
/* FIXME: we really should be able to link non-pic
|
| 2952 |
|
|
shared libraries. */
|
| 2953 |
|
|
if (indx == 0)
|
| 2954 |
|
|
{
|
| 2955 |
|
|
BFD_FAIL ();
|
| 2956 |
|
|
(*_bfd_error_handler)
|
| 2957 |
|
|
(_("%B: probably compiled without -fPIC?"),
|
| 2958 |
|
|
input_bfd);
|
| 2959 |
|
|
bfd_set_error (bfd_error_bad_value);
|
| 2960 |
|
|
return FALSE;
|
| 2961 |
|
|
}
|
| 2962 |
|
|
}
|
| 2963 |
|
|
|
| 2964 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
|
| 2965 |
|
|
r_type);
|
| 2966 |
|
|
}
|
| 2967 |
|
|
}
|
| 2968 |
|
|
|
| 2969 |
|
|
sparc_elf_append_rela (output_bfd, sreloc, &outrel);
|
| 2970 |
|
|
|
| 2971 |
|
|
/* This reloc will be computed at runtime, so there's no
|
| 2972 |
|
|
need to do anything now. */
|
| 2973 |
|
|
if (! relocate)
|
| 2974 |
|
|
continue;
|
| 2975 |
|
|
}
|
| 2976 |
|
|
break;
|
| 2977 |
|
|
|
| 2978 |
|
|
case R_SPARC_TLS_GD_HI22:
|
| 2979 |
|
|
if (! ABI_64_P (input_bfd)
|
| 2980 |
|
|
&& ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
|
| 2981 |
|
|
{
|
| 2982 |
|
|
/* R_SPARC_REV32 used the same reloc number as
|
| 2983 |
|
|
R_SPARC_TLS_GD_HI22. */
|
| 2984 |
|
|
r_type = R_SPARC_REV32;
|
| 2985 |
|
|
break;
|
| 2986 |
|
|
}
|
| 2987 |
|
|
/* Fall through */
|
| 2988 |
|
|
|
| 2989 |
|
|
case R_SPARC_TLS_GD_LO10:
|
| 2990 |
|
|
case R_SPARC_TLS_IE_HI22:
|
| 2991 |
|
|
case R_SPARC_TLS_IE_LO10:
|
| 2992 |
|
|
r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
|
| 2993 |
|
|
tls_type = GOT_UNKNOWN;
|
| 2994 |
|
|
if (h == NULL && local_got_offsets)
|
| 2995 |
|
|
tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
|
| 2996 |
|
|
else if (h != NULL)
|
| 2997 |
|
|
{
|
| 2998 |
|
|
tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
| 2999 |
|
|
if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
|
| 3000 |
|
|
switch (SPARC_ELF_R_TYPE (rel->r_info))
|
| 3001 |
|
|
{
|
| 3002 |
|
|
case R_SPARC_TLS_GD_HI22:
|
| 3003 |
|
|
case R_SPARC_TLS_IE_HI22:
|
| 3004 |
|
|
r_type = R_SPARC_TLS_LE_HIX22;
|
| 3005 |
|
|
break;
|
| 3006 |
|
|
default:
|
| 3007 |
|
|
r_type = R_SPARC_TLS_LE_LOX10;
|
| 3008 |
|
|
break;
|
| 3009 |
|
|
}
|
| 3010 |
|
|
}
|
| 3011 |
|
|
if (tls_type == GOT_TLS_IE)
|
| 3012 |
|
|
switch (r_type)
|
| 3013 |
|
|
{
|
| 3014 |
|
|
case R_SPARC_TLS_GD_HI22:
|
| 3015 |
|
|
r_type = R_SPARC_TLS_IE_HI22;
|
| 3016 |
|
|
break;
|
| 3017 |
|
|
case R_SPARC_TLS_GD_LO10:
|
| 3018 |
|
|
r_type = R_SPARC_TLS_IE_LO10;
|
| 3019 |
|
|
break;
|
| 3020 |
|
|
}
|
| 3021 |
|
|
|
| 3022 |
|
|
if (r_type == R_SPARC_TLS_LE_HIX22)
|
| 3023 |
|
|
{
|
| 3024 |
|
|
relocation = tpoff (info, relocation);
|
| 3025 |
|
|
break;
|
| 3026 |
|
|
}
|
| 3027 |
|
|
if (r_type == R_SPARC_TLS_LE_LOX10)
|
| 3028 |
|
|
{
|
| 3029 |
|
|
/* Change add into xor. */
|
| 3030 |
|
|
relocation = tpoff (info, relocation);
|
| 3031 |
|
|
bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
|
| 3032 |
|
|
contents + rel->r_offset)
|
| 3033 |
|
|
| 0x80182000), contents + rel->r_offset);
|
| 3034 |
|
|
break;
|
| 3035 |
|
|
}
|
| 3036 |
|
|
|
| 3037 |
|
|
if (h != NULL)
|
| 3038 |
|
|
{
|
| 3039 |
|
|
off = h->got.offset;
|
| 3040 |
|
|
h->got.offset |= 1;
|
| 3041 |
|
|
}
|
| 3042 |
|
|
else
|
| 3043 |
|
|
{
|
| 3044 |
|
|
BFD_ASSERT (local_got_offsets != NULL);
|
| 3045 |
|
|
off = local_got_offsets[r_symndx];
|
| 3046 |
|
|
local_got_offsets[r_symndx] |= 1;
|
| 3047 |
|
|
}
|
| 3048 |
|
|
|
| 3049 |
|
|
r_sparc_tlsldm:
|
| 3050 |
|
|
if (htab->sgot == NULL)
|
| 3051 |
|
|
abort ();
|
| 3052 |
|
|
|
| 3053 |
|
|
if ((off & 1) != 0)
|
| 3054 |
|
|
off &= ~1;
|
| 3055 |
|
|
else
|
| 3056 |
|
|
{
|
| 3057 |
|
|
Elf_Internal_Rela outrel;
|
| 3058 |
|
|
int dr_type, indx;
|
| 3059 |
|
|
|
| 3060 |
|
|
if (htab->srelgot == NULL)
|
| 3061 |
|
|
abort ();
|
| 3062 |
|
|
|
| 3063 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, 0, htab->sgot->contents + off);
|
| 3064 |
|
|
outrel.r_offset = (htab->sgot->output_section->vma
|
| 3065 |
|
|
+ htab->sgot->output_offset + off);
|
| 3066 |
|
|
indx = h && h->dynindx != -1 ? h->dynindx : 0;
|
| 3067 |
|
|
if (r_type == R_SPARC_TLS_IE_HI22
|
| 3068 |
|
|
|| r_type == R_SPARC_TLS_IE_LO10)
|
| 3069 |
|
|
dr_type = SPARC_ELF_TPOFF_RELOC (htab);
|
| 3070 |
|
|
else
|
| 3071 |
|
|
dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
|
| 3072 |
|
|
if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
|
| 3073 |
|
|
outrel.r_addend = relocation - dtpoff_base (info);
|
| 3074 |
|
|
else
|
| 3075 |
|
|
outrel.r_addend = 0;
|
| 3076 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
|
| 3077 |
|
|
sparc_elf_append_rela (output_bfd, htab->srelgot, &outrel);
|
| 3078 |
|
|
|
| 3079 |
|
|
if (r_type == R_SPARC_TLS_GD_HI22
|
| 3080 |
|
|
|| r_type == R_SPARC_TLS_GD_LO10)
|
| 3081 |
|
|
{
|
| 3082 |
|
|
if (indx == 0)
|
| 3083 |
|
|
{
|
| 3084 |
|
|
BFD_ASSERT (! unresolved_reloc);
|
| 3085 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd,
|
| 3086 |
|
|
relocation - dtpoff_base (info),
|
| 3087 |
|
|
(htab->sgot->contents + off
|
| 3088 |
|
|
+ SPARC_ELF_WORD_BYTES (htab)));
|
| 3089 |
|
|
}
|
| 3090 |
|
|
else
|
| 3091 |
|
|
{
|
| 3092 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
|
| 3093 |
|
|
(htab->sgot->contents + off
|
| 3094 |
|
|
+ SPARC_ELF_WORD_BYTES (htab)));
|
| 3095 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
|
| 3096 |
|
|
SPARC_ELF_DTPOFF_RELOC (htab));
|
| 3097 |
|
|
outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
|
| 3098 |
|
|
sparc_elf_append_rela (output_bfd, htab->srelgot,
|
| 3099 |
|
|
&outrel);
|
| 3100 |
|
|
}
|
| 3101 |
|
|
}
|
| 3102 |
|
|
else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
|
| 3103 |
|
|
{
|
| 3104 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
|
| 3105 |
|
|
(htab->sgot->contents + off
|
| 3106 |
|
|
+ SPARC_ELF_WORD_BYTES (htab)));
|
| 3107 |
|
|
}
|
| 3108 |
|
|
}
|
| 3109 |
|
|
|
| 3110 |
|
|
if (off >= (bfd_vma) -2)
|
| 3111 |
|
|
abort ();
|
| 3112 |
|
|
|
| 3113 |
|
|
relocation = htab->sgot->output_offset + off - got_base;
|
| 3114 |
|
|
unresolved_reloc = FALSE;
|
| 3115 |
|
|
howto = _bfd_sparc_elf_howto_table + r_type;
|
| 3116 |
|
|
break;
|
| 3117 |
|
|
|
| 3118 |
|
|
case R_SPARC_TLS_LDM_HI22:
|
| 3119 |
|
|
case R_SPARC_TLS_LDM_LO10:
|
| 3120 |
|
|
if (! info->shared)
|
| 3121 |
|
|
{
|
| 3122 |
|
|
bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
|
| 3123 |
|
|
continue;
|
| 3124 |
|
|
}
|
| 3125 |
|
|
off = htab->tls_ldm_got.offset;
|
| 3126 |
|
|
htab->tls_ldm_got.offset |= 1;
|
| 3127 |
|
|
goto r_sparc_tlsldm;
|
| 3128 |
|
|
|
| 3129 |
|
|
case R_SPARC_TLS_LDO_HIX22:
|
| 3130 |
|
|
case R_SPARC_TLS_LDO_LOX10:
|
| 3131 |
|
|
if (info->shared)
|
| 3132 |
|
|
{
|
| 3133 |
|
|
relocation -= dtpoff_base (info);
|
| 3134 |
|
|
break;
|
| 3135 |
|
|
}
|
| 3136 |
|
|
|
| 3137 |
|
|
r_type = (r_type == R_SPARC_TLS_LDO_HIX22
|
| 3138 |
|
|
? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
|
| 3139 |
|
|
/* Fall through. */
|
| 3140 |
|
|
|
| 3141 |
|
|
case R_SPARC_TLS_LE_HIX22:
|
| 3142 |
|
|
case R_SPARC_TLS_LE_LOX10:
|
| 3143 |
|
|
if (info->shared)
|
| 3144 |
|
|
{
|
| 3145 |
|
|
Elf_Internal_Rela outrel;
|
| 3146 |
|
|
bfd_boolean skip, relocate = FALSE;
|
| 3147 |
|
|
|
| 3148 |
|
|
BFD_ASSERT (sreloc != NULL);
|
| 3149 |
|
|
skip = FALSE;
|
| 3150 |
|
|
outrel.r_offset =
|
| 3151 |
|
|
_bfd_elf_section_offset (output_bfd, info, input_section,
|
| 3152 |
|
|
rel->r_offset);
|
| 3153 |
|
|
if (outrel.r_offset == (bfd_vma) -1)
|
| 3154 |
|
|
skip = TRUE;
|
| 3155 |
|
|
else if (outrel.r_offset == (bfd_vma) -2)
|
| 3156 |
|
|
skip = TRUE, relocate = TRUE;
|
| 3157 |
|
|
outrel.r_offset += (input_section->output_section->vma
|
| 3158 |
|
|
+ input_section->output_offset);
|
| 3159 |
|
|
if (skip)
|
| 3160 |
|
|
memset (&outrel, 0, sizeof outrel);
|
| 3161 |
|
|
else
|
| 3162 |
|
|
{
|
| 3163 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
|
| 3164 |
|
|
outrel.r_addend = relocation - dtpoff_base (info)
|
| 3165 |
|
|
+ rel->r_addend;
|
| 3166 |
|
|
}
|
| 3167 |
|
|
|
| 3168 |
|
|
sparc_elf_append_rela (output_bfd, sreloc, &outrel);
|
| 3169 |
|
|
continue;
|
| 3170 |
|
|
}
|
| 3171 |
|
|
relocation = tpoff (info, relocation);
|
| 3172 |
|
|
break;
|
| 3173 |
|
|
|
| 3174 |
|
|
case R_SPARC_TLS_LDM_CALL:
|
| 3175 |
|
|
if (! info->shared)
|
| 3176 |
|
|
{
|
| 3177 |
|
|
/* mov %g0, %o0 */
|
| 3178 |
|
|
bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
|
| 3179 |
|
|
continue;
|
| 3180 |
|
|
}
|
| 3181 |
|
|
/* Fall through */
|
| 3182 |
|
|
|
| 3183 |
|
|
case R_SPARC_TLS_GD_CALL:
|
| 3184 |
|
|
tls_type = GOT_UNKNOWN;
|
| 3185 |
|
|
if (h == NULL && local_got_offsets)
|
| 3186 |
|
|
tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
|
| 3187 |
|
|
else if (h != NULL)
|
| 3188 |
|
|
tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
| 3189 |
|
|
if (! info->shared
|
| 3190 |
|
|
|| (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
|
| 3191 |
|
|
{
|
| 3192 |
|
|
bfd_vma insn;
|
| 3193 |
|
|
|
| 3194 |
|
|
if (!info->shared && (h == NULL || h->dynindx == -1))
|
| 3195 |
|
|
{
|
| 3196 |
|
|
/* GD -> LE */
|
| 3197 |
|
|
bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
|
| 3198 |
|
|
continue;
|
| 3199 |
|
|
}
|
| 3200 |
|
|
|
| 3201 |
|
|
/* GD -> IE */
|
| 3202 |
|
|
if (rel + 1 < relend
|
| 3203 |
|
|
&& SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
|
| 3204 |
|
|
&& rel[1].r_offset == rel->r_offset + 4
|
| 3205 |
|
|
&& SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
|
| 3206 |
|
|
&& (((insn = bfd_get_32 (input_bfd,
|
| 3207 |
|
|
contents + rel[1].r_offset))
|
| 3208 |
|
|
>> 25) & 0x1f) == 8)
|
| 3209 |
|
|
{
|
| 3210 |
|
|
/* We have
|
| 3211 |
|
|
call __tls_get_addr, %tgd_call(foo)
|
| 3212 |
|
|
add %reg1, %reg2, %o0, %tgd_add(foo)
|
| 3213 |
|
|
and change it into IE:
|
| 3214 |
|
|
{ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
|
| 3215 |
|
|
add %g7, %o0, %o0, %tie_add(foo).
|
| 3216 |
|
|
add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
|
| 3217 |
|
|
ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
|
| 3218 |
|
|
ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
|
| 3219 |
|
|
bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
|
| 3220 |
|
|
contents + rel->r_offset);
|
| 3221 |
|
|
bfd_put_32 (output_bfd, 0x9001c008,
|
| 3222 |
|
|
contents + rel->r_offset + 4);
|
| 3223 |
|
|
rel++;
|
| 3224 |
|
|
continue;
|
| 3225 |
|
|
}
|
| 3226 |
|
|
|
| 3227 |
|
|
bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset);
|
| 3228 |
|
|
continue;
|
| 3229 |
|
|
}
|
| 3230 |
|
|
|
| 3231 |
|
|
h = (struct elf_link_hash_entry *)
|
| 3232 |
|
|
bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
|
| 3233 |
|
|
FALSE, TRUE);
|
| 3234 |
|
|
BFD_ASSERT (h != NULL);
|
| 3235 |
|
|
r_type = R_SPARC_WPLT30;
|
| 3236 |
|
|
howto = _bfd_sparc_elf_howto_table + r_type;
|
| 3237 |
|
|
goto r_sparc_wplt30;
|
| 3238 |
|
|
|
| 3239 |
|
|
case R_SPARC_TLS_GD_ADD:
|
| 3240 |
|
|
tls_type = GOT_UNKNOWN;
|
| 3241 |
|
|
if (h == NULL && local_got_offsets)
|
| 3242 |
|
|
tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
|
| 3243 |
|
|
else if (h != NULL)
|
| 3244 |
|
|
tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
| 3245 |
|
|
if (! info->shared || tls_type == GOT_TLS_IE)
|
| 3246 |
|
|
{
|
| 3247 |
|
|
/* add %reg1, %reg2, %reg3, %tgd_add(foo)
|
| 3248 |
|
|
changed into IE:
|
| 3249 |
|
|
{ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
|
| 3250 |
|
|
or LE:
|
| 3251 |
|
|
add %g7, %reg2, %reg3. */
|
| 3252 |
|
|
bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3253 |
|
|
if ((h != NULL && h->dynindx != -1) || info->shared)
|
| 3254 |
|
|
relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
|
| 3255 |
|
|
else
|
| 3256 |
|
|
relocation = (insn & ~0x7c000) | 0x1c000;
|
| 3257 |
|
|
bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
|
| 3258 |
|
|
}
|
| 3259 |
|
|
continue;
|
| 3260 |
|
|
|
| 3261 |
|
|
case R_SPARC_TLS_LDM_ADD:
|
| 3262 |
|
|
if (! info->shared)
|
| 3263 |
|
|
bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
|
| 3264 |
|
|
continue;
|
| 3265 |
|
|
|
| 3266 |
|
|
case R_SPARC_TLS_LDO_ADD:
|
| 3267 |
|
|
if (! info->shared)
|
| 3268 |
|
|
{
|
| 3269 |
|
|
/* Change rs1 into %g7. */
|
| 3270 |
|
|
bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3271 |
|
|
insn = (insn & ~0x7c000) | 0x1c000;
|
| 3272 |
|
|
bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
|
| 3273 |
|
|
}
|
| 3274 |
|
|
continue;
|
| 3275 |
|
|
|
| 3276 |
225 |
jeremybenn |
case R_SPARC_GOTDATA_OP:
|
| 3277 |
|
|
/* We don't support gotdata code transformation optimizations
|
| 3278 |
|
|
yet, so simply leave the sequence as-is. */
|
| 3279 |
|
|
continue;
|
| 3280 |
|
|
|
| 3281 |
24 |
jeremybenn |
case R_SPARC_TLS_IE_LD:
|
| 3282 |
|
|
case R_SPARC_TLS_IE_LDX:
|
| 3283 |
|
|
if (! info->shared && (h == NULL || h->dynindx == -1))
|
| 3284 |
|
|
{
|
| 3285 |
|
|
bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3286 |
|
|
int rs2 = insn & 0x1f;
|
| 3287 |
|
|
int rd = (insn >> 25) & 0x1f;
|
| 3288 |
|
|
|
| 3289 |
|
|
if (rs2 == rd)
|
| 3290 |
|
|
relocation = SPARC_NOP;
|
| 3291 |
|
|
else
|
| 3292 |
|
|
relocation = 0x80100000 | (insn & 0x3e00001f);
|
| 3293 |
|
|
bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
|
| 3294 |
|
|
}
|
| 3295 |
|
|
continue;
|
| 3296 |
|
|
|
| 3297 |
|
|
case R_SPARC_TLS_IE_ADD:
|
| 3298 |
|
|
/* Totally useless relocation. */
|
| 3299 |
|
|
continue;
|
| 3300 |
|
|
|
| 3301 |
|
|
case R_SPARC_TLS_DTPOFF32:
|
| 3302 |
|
|
case R_SPARC_TLS_DTPOFF64:
|
| 3303 |
|
|
relocation -= dtpoff_base (info);
|
| 3304 |
|
|
break;
|
| 3305 |
|
|
|
| 3306 |
|
|
default:
|
| 3307 |
|
|
break;
|
| 3308 |
|
|
}
|
| 3309 |
|
|
|
| 3310 |
|
|
/* Dynamic relocs are not propagated for SEC_DEBUGGING sections
|
| 3311 |
|
|
because such sections are not SEC_ALLOC and thus ld.so will
|
| 3312 |
|
|
not process them. */
|
| 3313 |
|
|
if (unresolved_reloc
|
| 3314 |
|
|
&& !((input_section->flags & SEC_DEBUGGING) != 0
|
| 3315 |
|
|
&& h->def_dynamic))
|
| 3316 |
|
|
(*_bfd_error_handler)
|
| 3317 |
|
|
(_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
|
| 3318 |
|
|
input_bfd,
|
| 3319 |
|
|
input_section,
|
| 3320 |
|
|
(long) rel->r_offset,
|
| 3321 |
|
|
howto->name,
|
| 3322 |
|
|
h->root.root.string);
|
| 3323 |
|
|
|
| 3324 |
|
|
r = bfd_reloc_continue;
|
| 3325 |
|
|
if (r_type == R_SPARC_OLO10)
|
| 3326 |
|
|
{
|
| 3327 |
|
|
bfd_vma x;
|
| 3328 |
|
|
|
| 3329 |
|
|
if (! ABI_64_P (output_bfd))
|
| 3330 |
|
|
abort ();
|
| 3331 |
|
|
|
| 3332 |
|
|
relocation += rel->r_addend;
|
| 3333 |
|
|
relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
|
| 3334 |
|
|
|
| 3335 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3336 |
|
|
x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
|
| 3337 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
| 3338 |
|
|
|
| 3339 |
|
|
r = bfd_check_overflow (howto->complain_on_overflow,
|
| 3340 |
|
|
howto->bitsize, howto->rightshift,
|
| 3341 |
|
|
bfd_arch_bits_per_address (input_bfd),
|
| 3342 |
|
|
relocation);
|
| 3343 |
|
|
}
|
| 3344 |
|
|
else if (r_type == R_SPARC_WDISP16)
|
| 3345 |
|
|
{
|
| 3346 |
|
|
bfd_vma x;
|
| 3347 |
|
|
|
| 3348 |
|
|
relocation += rel->r_addend;
|
| 3349 |
|
|
relocation -= (input_section->output_section->vma
|
| 3350 |
|
|
+ input_section->output_offset);
|
| 3351 |
|
|
relocation -= rel->r_offset;
|
| 3352 |
|
|
|
| 3353 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3354 |
|
|
x |= ((((relocation >> 2) & 0xc000) << 6)
|
| 3355 |
|
|
| ((relocation >> 2) & 0x3fff));
|
| 3356 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
| 3357 |
|
|
|
| 3358 |
|
|
r = bfd_check_overflow (howto->complain_on_overflow,
|
| 3359 |
|
|
howto->bitsize, howto->rightshift,
|
| 3360 |
|
|
bfd_arch_bits_per_address (input_bfd),
|
| 3361 |
|
|
relocation);
|
| 3362 |
|
|
}
|
| 3363 |
|
|
else if (r_type == R_SPARC_REV32)
|
| 3364 |
|
|
{
|
| 3365 |
|
|
bfd_vma x;
|
| 3366 |
|
|
|
| 3367 |
|
|
relocation = relocation + rel->r_addend;
|
| 3368 |
|
|
|
| 3369 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3370 |
|
|
x = x + relocation;
|
| 3371 |
|
|
bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
|
| 3372 |
|
|
r = bfd_reloc_ok;
|
| 3373 |
|
|
}
|
| 3374 |
|
|
else if (r_type == R_SPARC_TLS_LDO_HIX22
|
| 3375 |
|
|
|| r_type == R_SPARC_TLS_LE_HIX22)
|
| 3376 |
|
|
{
|
| 3377 |
|
|
bfd_vma x;
|
| 3378 |
|
|
|
| 3379 |
|
|
relocation += rel->r_addend;
|
| 3380 |
|
|
if (r_type == R_SPARC_TLS_LE_HIX22)
|
| 3381 |
|
|
relocation ^= MINUS_ONE;
|
| 3382 |
|
|
|
| 3383 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3384 |
|
|
x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
|
| 3385 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
| 3386 |
|
|
r = bfd_reloc_ok;
|
| 3387 |
|
|
}
|
| 3388 |
|
|
else if (r_type == R_SPARC_TLS_LDO_LOX10
|
| 3389 |
|
|
|| r_type == R_SPARC_TLS_LE_LOX10)
|
| 3390 |
|
|
{
|
| 3391 |
|
|
bfd_vma x;
|
| 3392 |
|
|
|
| 3393 |
|
|
relocation += rel->r_addend;
|
| 3394 |
|
|
relocation &= 0x3ff;
|
| 3395 |
|
|
if (r_type == R_SPARC_TLS_LE_LOX10)
|
| 3396 |
|
|
relocation |= 0x1c00;
|
| 3397 |
|
|
|
| 3398 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3399 |
|
|
x = (x & ~(bfd_vma) 0x1fff) | relocation;
|
| 3400 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
| 3401 |
|
|
|
| 3402 |
|
|
r = bfd_reloc_ok;
|
| 3403 |
|
|
}
|
| 3404 |
|
|
else if (r_type == R_SPARC_HIX22)
|
| 3405 |
|
|
{
|
| 3406 |
|
|
bfd_vma x;
|
| 3407 |
|
|
|
| 3408 |
|
|
relocation += rel->r_addend;
|
| 3409 |
|
|
relocation = relocation ^ MINUS_ONE;
|
| 3410 |
|
|
|
| 3411 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3412 |
|
|
x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
|
| 3413 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
| 3414 |
|
|
|
| 3415 |
|
|
r = bfd_check_overflow (howto->complain_on_overflow,
|
| 3416 |
|
|
howto->bitsize, howto->rightshift,
|
| 3417 |
|
|
bfd_arch_bits_per_address (input_bfd),
|
| 3418 |
|
|
relocation);
|
| 3419 |
|
|
}
|
| 3420 |
|
|
else if (r_type == R_SPARC_LOX10)
|
| 3421 |
|
|
{
|
| 3422 |
|
|
bfd_vma x;
|
| 3423 |
|
|
|
| 3424 |
|
|
relocation += rel->r_addend;
|
| 3425 |
|
|
relocation = (relocation & 0x3ff) | 0x1c00;
|
| 3426 |
|
|
|
| 3427 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3428 |
|
|
x = (x & ~(bfd_vma) 0x1fff) | relocation;
|
| 3429 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
| 3430 |
|
|
|
| 3431 |
|
|
r = bfd_reloc_ok;
|
| 3432 |
|
|
}
|
| 3433 |
|
|
else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
|
| 3434 |
|
|
&& sec_do_relax (input_section)
|
| 3435 |
|
|
&& rel->r_offset + 4 < input_section->size)
|
| 3436 |
|
|
{
|
| 3437 |
|
|
#define G0 0
|
| 3438 |
|
|
#define O7 15
|
| 3439 |
|
|
#define XCC (2 << 20)
|
| 3440 |
|
|
#define COND(x) (((x)&0xf)<<25)
|
| 3441 |
|
|
#define CONDA COND(0x8)
|
| 3442 |
|
|
#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
|
| 3443 |
|
|
#define INSN_BA (F2(0,2) | CONDA)
|
| 3444 |
|
|
#define INSN_OR F3(2, 0x2, 0)
|
| 3445 |
|
|
#define INSN_NOP F2(0,4)
|
| 3446 |
|
|
|
| 3447 |
|
|
bfd_vma x, y;
|
| 3448 |
|
|
|
| 3449 |
|
|
/* If the instruction is a call with either:
|
| 3450 |
|
|
restore
|
| 3451 |
|
|
arithmetic instruction with rd == %o7
|
| 3452 |
|
|
where rs1 != %o7 and rs2 if it is register != %o7
|
| 3453 |
|
|
then we can optimize if the call destination is near
|
| 3454 |
|
|
by changing the call into a branch always. */
|
| 3455 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
| 3456 |
|
|
y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
|
| 3457 |
|
|
if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
|
| 3458 |
|
|
{
|
| 3459 |
|
|
if (((y & OP3(~0)) == OP3(0x3d) /* restore */
|
| 3460 |
|
|
|| ((y & OP3(0x28)) == 0 /* arithmetic */
|
| 3461 |
|
|
&& (y & RD(~0)) == RD(O7)))
|
| 3462 |
|
|
&& (y & RS1(~0)) != RS1(O7)
|
| 3463 |
|
|
&& ((y & F3I(~0))
|
| 3464 |
|
|
|| (y & RS2(~0)) != RS2(O7)))
|
| 3465 |
|
|
{
|
| 3466 |
|
|
bfd_vma reloc;
|
| 3467 |
|
|
|
| 3468 |
|
|
reloc = relocation + rel->r_addend - rel->r_offset;
|
| 3469 |
|
|
reloc -= (input_section->output_section->vma
|
| 3470 |
|
|
+ input_section->output_offset);
|
| 3471 |
|
|
|
| 3472 |
|
|
/* Ensure the branch fits into simm22. */
|
| 3473 |
|
|
if ((reloc & 3) == 0
|
| 3474 |
|
|
&& ((reloc & ~(bfd_vma)0x7fffff) == 0
|
| 3475 |
|
|
|| ((reloc | 0x7fffff) == ~(bfd_vma)0)))
|
| 3476 |
|
|
{
|
| 3477 |
|
|
reloc >>= 2;
|
| 3478 |
|
|
|
| 3479 |
|
|
/* Check whether it fits into simm19. */
|
| 3480 |
|
|
if (((reloc & 0x3c0000) == 0
|
| 3481 |
|
|
|| (reloc & 0x3c0000) == 0x3c0000)
|
| 3482 |
|
|
&& (ABI_64_P (output_bfd)
|
| 3483 |
|
|
|| elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
|
| 3484 |
|
|
x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
|
| 3485 |
|
|
else
|
| 3486 |
|
|
x = INSN_BA | (reloc & 0x3fffff); /* ba */
|
| 3487 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
| 3488 |
|
|
r = bfd_reloc_ok;
|
| 3489 |
|
|
if (rel->r_offset >= 4
|
| 3490 |
|
|
&& (y & (0xffffffff ^ RS1(~0)))
|
| 3491 |
|
|
== (INSN_OR | RD(O7) | RS2(G0)))
|
| 3492 |
|
|
{
|
| 3493 |
|
|
bfd_vma z;
|
| 3494 |
|
|
unsigned int reg;
|
| 3495 |
|
|
|
| 3496 |
|
|
z = bfd_get_32 (input_bfd,
|
| 3497 |
|
|
contents + rel->r_offset - 4);
|
| 3498 |
|
|
if ((z & (0xffffffff ^ RD(~0)))
|
| 3499 |
|
|
!= (INSN_OR | RS1(O7) | RS2(G0)))
|
| 3500 |
|
|
break;
|
| 3501 |
|
|
|
| 3502 |
|
|
/* The sequence was
|
| 3503 |
|
|
or %o7, %g0, %rN
|
| 3504 |
|
|
call foo
|
| 3505 |
|
|
or %rN, %g0, %o7
|
| 3506 |
|
|
|
| 3507 |
|
|
If call foo was replaced with ba, replace
|
| 3508 |
|
|
or %rN, %g0, %o7 with nop. */
|
| 3509 |
|
|
|
| 3510 |
|
|
reg = (y & RS1(~0)) >> 14;
|
| 3511 |
|
|
if (reg != ((z & RD(~0)) >> 25)
|
| 3512 |
|
|
|| reg == G0 || reg == O7)
|
| 3513 |
|
|
break;
|
| 3514 |
|
|
|
| 3515 |
|
|
bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
|
| 3516 |
|
|
contents + rel->r_offset + 4);
|
| 3517 |
|
|
}
|
| 3518 |
|
|
|
| 3519 |
|
|
}
|
| 3520 |
|
|
}
|
| 3521 |
|
|
}
|
| 3522 |
|
|
}
|
| 3523 |
|
|
|
| 3524 |
|
|
if (r == bfd_reloc_continue)
|
| 3525 |
|
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
| 3526 |
|
|
contents, rel->r_offset,
|
| 3527 |
|
|
relocation, rel->r_addend);
|
| 3528 |
|
|
|
| 3529 |
|
|
if (r != bfd_reloc_ok)
|
| 3530 |
|
|
{
|
| 3531 |
|
|
switch (r)
|
| 3532 |
|
|
{
|
| 3533 |
|
|
default:
|
| 3534 |
|
|
case bfd_reloc_outofrange:
|
| 3535 |
|
|
abort ();
|
| 3536 |
|
|
case bfd_reloc_overflow:
|
| 3537 |
|
|
{
|
| 3538 |
|
|
const char *name;
|
| 3539 |
|
|
|
| 3540 |
|
|
/* The Solaris native linker silently disregards overflows.
|
| 3541 |
|
|
We don't, but this breaks stabs debugging info, whose
|
| 3542 |
|
|
relocations are only 32-bits wide. Ignore overflows in
|
| 3543 |
|
|
this case and also for discarded entries. */
|
| 3544 |
|
|
if ((r_type == R_SPARC_32 || r_type == R_SPARC_DISP32)
|
| 3545 |
|
|
&& (((input_section->flags & SEC_DEBUGGING) != 0
|
| 3546 |
|
|
&& strcmp (bfd_section_name (input_bfd,
|
| 3547 |
|
|
input_section),
|
| 3548 |
|
|
".stab") == 0)
|
| 3549 |
|
|
|| _bfd_elf_section_offset (output_bfd, info,
|
| 3550 |
|
|
input_section,
|
| 3551 |
|
|
rel->r_offset)
|
| 3552 |
|
|
== (bfd_vma)-1))
|
| 3553 |
|
|
break;
|
| 3554 |
|
|
|
| 3555 |
|
|
if (h != NULL)
|
| 3556 |
|
|
{
|
| 3557 |
|
|
/* Assume this is a call protected by other code that
|
| 3558 |
|
|
detect the symbol is undefined. If this is the case,
|
| 3559 |
|
|
we can safely ignore the overflow. If not, the
|
| 3560 |
|
|
program is hosed anyway, and a little warning isn't
|
| 3561 |
|
|
going to help. */
|
| 3562 |
|
|
if (h->root.type == bfd_link_hash_undefweak
|
| 3563 |
|
|
&& howto->pc_relative)
|
| 3564 |
|
|
break;
|
| 3565 |
|
|
|
| 3566 |
|
|
name = NULL;
|
| 3567 |
|
|
}
|
| 3568 |
|
|
else
|
| 3569 |
|
|
{
|
| 3570 |
|
|
name = bfd_elf_string_from_elf_section (input_bfd,
|
| 3571 |
|
|
symtab_hdr->sh_link,
|
| 3572 |
|
|
sym->st_name);
|
| 3573 |
|
|
if (name == NULL)
|
| 3574 |
|
|
return FALSE;
|
| 3575 |
|
|
if (*name == '\0')
|
| 3576 |
|
|
name = bfd_section_name (input_bfd, sec);
|
| 3577 |
|
|
}
|
| 3578 |
|
|
if (! ((*info->callbacks->reloc_overflow)
|
| 3579 |
|
|
(info, (h ? &h->root : NULL), name, howto->name,
|
| 3580 |
|
|
(bfd_vma) 0, input_bfd, input_section,
|
| 3581 |
|
|
rel->r_offset)))
|
| 3582 |
|
|
return FALSE;
|
| 3583 |
|
|
}
|
| 3584 |
|
|
break;
|
| 3585 |
|
|
}
|
| 3586 |
|
|
}
|
| 3587 |
|
|
}
|
| 3588 |
|
|
|
| 3589 |
|
|
return TRUE;
|
| 3590 |
|
|
}
|
| 3591 |
|
|
|
| 3592 |
|
|
/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
|
| 3593 |
|
|
and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
|
| 3594 |
|
|
is the offset of the associated .got.plt entry from
|
| 3595 |
|
|
_GLOBAL_OFFSET_TABLE_. */
|
| 3596 |
|
|
|
| 3597 |
|
|
static void
|
| 3598 |
|
|
sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
|
| 3599 |
|
|
bfd_vma plt_offset, bfd_vma plt_index,
|
| 3600 |
|
|
bfd_vma got_offset)
|
| 3601 |
|
|
{
|
| 3602 |
|
|
bfd_vma got_base;
|
| 3603 |
|
|
const bfd_vma *plt_entry;
|
| 3604 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 3605 |
|
|
bfd_byte *loc;
|
| 3606 |
|
|
Elf_Internal_Rela rela;
|
| 3607 |
|
|
|
| 3608 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 3609 |
|
|
if (info->shared)
|
| 3610 |
|
|
{
|
| 3611 |
|
|
plt_entry = sparc_vxworks_shared_plt_entry;
|
| 3612 |
|
|
got_base = 0;
|
| 3613 |
|
|
}
|
| 3614 |
|
|
else
|
| 3615 |
|
|
{
|
| 3616 |
|
|
plt_entry = sparc_vxworks_exec_plt_entry;
|
| 3617 |
|
|
got_base = (htab->elf.hgot->root.u.def.value
|
| 3618 |
|
|
+ htab->elf.hgot->root.u.def.section->output_offset
|
| 3619 |
|
|
+ htab->elf.hgot->root.u.def.section->output_section->vma);
|
| 3620 |
|
|
}
|
| 3621 |
|
|
|
| 3622 |
|
|
/* Fill in the entry in the procedure linkage table. */
|
| 3623 |
|
|
bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
|
| 3624 |
|
|
htab->splt->contents + plt_offset);
|
| 3625 |
|
|
bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
|
| 3626 |
|
|
htab->splt->contents + plt_offset + 4);
|
| 3627 |
|
|
bfd_put_32 (output_bfd, plt_entry[2],
|
| 3628 |
|
|
htab->splt->contents + plt_offset + 8);
|
| 3629 |
|
|
bfd_put_32 (output_bfd, plt_entry[3],
|
| 3630 |
|
|
htab->splt->contents + plt_offset + 12);
|
| 3631 |
|
|
bfd_put_32 (output_bfd, plt_entry[4],
|
| 3632 |
|
|
htab->splt->contents + plt_offset + 16);
|
| 3633 |
|
|
bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
|
| 3634 |
|
|
htab->splt->contents + plt_offset + 20);
|
| 3635 |
|
|
/* PC-relative displacement for a branch to the start of
|
| 3636 |
|
|
the PLT section. */
|
| 3637 |
|
|
bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
|
| 3638 |
|
|
& 0x003fffff),
|
| 3639 |
|
|
htab->splt->contents + plt_offset + 24);
|
| 3640 |
|
|
bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
|
| 3641 |
|
|
htab->splt->contents + plt_offset + 28);
|
| 3642 |
|
|
|
| 3643 |
|
|
/* Fill in the .got.plt entry, pointing initially at the
|
| 3644 |
|
|
second half of the PLT entry. */
|
| 3645 |
|
|
BFD_ASSERT (htab->sgotplt != NULL);
|
| 3646 |
|
|
bfd_put_32 (output_bfd,
|
| 3647 |
|
|
htab->splt->output_section->vma
|
| 3648 |
|
|
+ htab->splt->output_offset
|
| 3649 |
|
|
+ plt_offset + 20,
|
| 3650 |
|
|
htab->sgotplt->contents + got_offset);
|
| 3651 |
|
|
|
| 3652 |
|
|
/* Add relocations to .rela.plt.unloaded. */
|
| 3653 |
|
|
if (!info->shared)
|
| 3654 |
|
|
{
|
| 3655 |
|
|
loc = (htab->srelplt2->contents
|
| 3656 |
|
|
+ (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
|
| 3657 |
|
|
|
| 3658 |
|
|
/* Relocate the initial sethi. */
|
| 3659 |
|
|
rela.r_offset = (htab->splt->output_section->vma
|
| 3660 |
|
|
+ htab->splt->output_offset
|
| 3661 |
|
|
+ plt_offset);
|
| 3662 |
|
|
rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
|
| 3663 |
|
|
rela.r_addend = got_offset;
|
| 3664 |
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
| 3665 |
|
|
loc += sizeof (Elf32_External_Rela);
|
| 3666 |
|
|
|
| 3667 |
|
|
/* Likewise the following or. */
|
| 3668 |
|
|
rela.r_offset += 4;
|
| 3669 |
|
|
rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
|
| 3670 |
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
| 3671 |
|
|
loc += sizeof (Elf32_External_Rela);
|
| 3672 |
|
|
|
| 3673 |
|
|
/* Relocate the .got.plt entry. */
|
| 3674 |
|
|
rela.r_offset = (htab->sgotplt->output_section->vma
|
| 3675 |
|
|
+ htab->sgotplt->output_offset
|
| 3676 |
|
|
+ got_offset);
|
| 3677 |
|
|
rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
|
| 3678 |
|
|
rela.r_addend = plt_offset + 20;
|
| 3679 |
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
| 3680 |
|
|
}
|
| 3681 |
|
|
}
|
| 3682 |
|
|
|
| 3683 |
|
|
/* Finish up dynamic symbol handling. We set the contents of various
|
| 3684 |
|
|
dynamic sections here. */
|
| 3685 |
|
|
|
| 3686 |
|
|
bfd_boolean
|
| 3687 |
|
|
_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
|
| 3688 |
|
|
struct bfd_link_info *info,
|
| 3689 |
|
|
struct elf_link_hash_entry *h,
|
| 3690 |
|
|
Elf_Internal_Sym *sym)
|
| 3691 |
|
|
{
|
| 3692 |
|
|
bfd *dynobj;
|
| 3693 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 3694 |
|
|
const struct elf_backend_data *bed;
|
| 3695 |
|
|
|
| 3696 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 3697 |
|
|
dynobj = htab->elf.dynobj;
|
| 3698 |
|
|
bed = get_elf_backend_data (output_bfd);
|
| 3699 |
|
|
|
| 3700 |
|
|
if (h->plt.offset != (bfd_vma) -1)
|
| 3701 |
|
|
{
|
| 3702 |
|
|
asection *splt;
|
| 3703 |
|
|
asection *srela;
|
| 3704 |
|
|
Elf_Internal_Rela rela;
|
| 3705 |
|
|
bfd_byte *loc;
|
| 3706 |
|
|
bfd_vma r_offset, got_offset;
|
| 3707 |
|
|
int rela_index;
|
| 3708 |
|
|
|
| 3709 |
|
|
/* This symbol has an entry in the PLT. Set it up. */
|
| 3710 |
|
|
|
| 3711 |
|
|
BFD_ASSERT (h->dynindx != -1);
|
| 3712 |
|
|
|
| 3713 |
|
|
splt = htab->splt;
|
| 3714 |
|
|
srela = htab->srelplt;
|
| 3715 |
|
|
BFD_ASSERT (splt != NULL && srela != NULL);
|
| 3716 |
|
|
|
| 3717 |
|
|
/* Fill in the entry in the .rela.plt section. */
|
| 3718 |
|
|
if (htab->is_vxworks)
|
| 3719 |
|
|
{
|
| 3720 |
|
|
/* Work out the index of this PLT entry. */
|
| 3721 |
|
|
rela_index = ((h->plt.offset - htab->plt_header_size)
|
| 3722 |
|
|
/ htab->plt_entry_size);
|
| 3723 |
|
|
|
| 3724 |
|
|
/* Calculate the offset of the associated .got.plt entry.
|
| 3725 |
|
|
The first three entries are reserved. */
|
| 3726 |
|
|
got_offset = (rela_index + 3) * 4;
|
| 3727 |
|
|
|
| 3728 |
|
|
sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
|
| 3729 |
|
|
rela_index, got_offset);
|
| 3730 |
|
|
|
| 3731 |
|
|
|
| 3732 |
|
|
/* On VxWorks, the relocation points to the .got.plt entry,
|
| 3733 |
|
|
not the .plt entry. */
|
| 3734 |
|
|
rela.r_offset = (htab->sgotplt->output_section->vma
|
| 3735 |
|
|
+ htab->sgotplt->output_offset
|
| 3736 |
|
|
+ got_offset);
|
| 3737 |
|
|
rela.r_addend = 0;
|
| 3738 |
|
|
}
|
| 3739 |
|
|
else
|
| 3740 |
|
|
{
|
| 3741 |
|
|
/* Fill in the entry in the procedure linkage table. */
|
| 3742 |
|
|
rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
|
| 3743 |
|
|
h->plt.offset, splt->size,
|
| 3744 |
|
|
&r_offset);
|
| 3745 |
|
|
|
| 3746 |
|
|
rela.r_offset = r_offset
|
| 3747 |
|
|
+ (splt->output_section->vma + splt->output_offset);
|
| 3748 |
|
|
if (! ABI_64_P (output_bfd)
|
| 3749 |
|
|
|| h->plt.offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
|
| 3750 |
|
|
{
|
| 3751 |
|
|
rela.r_addend = 0;
|
| 3752 |
|
|
}
|
| 3753 |
|
|
else
|
| 3754 |
|
|
{
|
| 3755 |
|
|
rela.r_addend = (-(h->plt.offset + 4)
|
| 3756 |
|
|
- splt->output_section->vma
|
| 3757 |
|
|
- splt->output_offset);
|
| 3758 |
|
|
}
|
| 3759 |
|
|
}
|
| 3760 |
|
|
rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_JMP_SLOT);
|
| 3761 |
|
|
|
| 3762 |
|
|
/* Adjust for the first 4 reserved elements in the .plt section
|
| 3763 |
|
|
when setting the offset in the .rela.plt section.
|
| 3764 |
|
|
Sun forgot to read their own ABI and copied elf32-sparc behaviour,
|
| 3765 |
|
|
thus .plt[4] has corresponding .rela.plt[0] and so on. */
|
| 3766 |
|
|
|
| 3767 |
|
|
loc = srela->contents;
|
| 3768 |
|
|
loc += rela_index * bed->s->sizeof_rela;
|
| 3769 |
|
|
bed->s->swap_reloca_out (output_bfd, &rela, loc);
|
| 3770 |
|
|
|
| 3771 |
|
|
if (!h->def_regular)
|
| 3772 |
|
|
{
|
| 3773 |
|
|
/* Mark the symbol as undefined, rather than as defined in
|
| 3774 |
|
|
the .plt section. Leave the value alone. */
|
| 3775 |
|
|
sym->st_shndx = SHN_UNDEF;
|
| 3776 |
|
|
/* If the symbol is weak, we do need to clear the value.
|
| 3777 |
|
|
Otherwise, the PLT entry would provide a definition for
|
| 3778 |
|
|
the symbol even if the symbol wasn't defined anywhere,
|
| 3779 |
|
|
and so the symbol would never be NULL. */
|
| 3780 |
|
|
if (!h->ref_regular_nonweak)
|
| 3781 |
|
|
sym->st_value = 0;
|
| 3782 |
|
|
}
|
| 3783 |
|
|
}
|
| 3784 |
|
|
|
| 3785 |
|
|
if (h->got.offset != (bfd_vma) -1
|
| 3786 |
|
|
&& _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
|
| 3787 |
|
|
&& _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
|
| 3788 |
|
|
{
|
| 3789 |
|
|
asection *sgot;
|
| 3790 |
|
|
asection *srela;
|
| 3791 |
|
|
Elf_Internal_Rela rela;
|
| 3792 |
|
|
|
| 3793 |
|
|
/* This symbol has an entry in the GOT. Set it up. */
|
| 3794 |
|
|
|
| 3795 |
|
|
sgot = htab->sgot;
|
| 3796 |
|
|
srela = htab->srelgot;
|
| 3797 |
|
|
BFD_ASSERT (sgot != NULL && srela != NULL);
|
| 3798 |
|
|
|
| 3799 |
|
|
rela.r_offset = (sgot->output_section->vma
|
| 3800 |
|
|
+ sgot->output_offset
|
| 3801 |
|
|
+ (h->got.offset &~ (bfd_vma) 1));
|
| 3802 |
|
|
|
| 3803 |
|
|
/* If this is a -Bsymbolic link, and the symbol is defined
|
| 3804 |
|
|
locally, we just want to emit a RELATIVE reloc. Likewise if
|
| 3805 |
|
|
the symbol was forced to be local because of a version file.
|
| 3806 |
|
|
The entry in the global offset table will already have been
|
| 3807 |
|
|
initialized in the relocate_section function. */
|
| 3808 |
|
|
if (info->shared
|
| 3809 |
|
|
&& (info->symbolic || h->dynindx == -1)
|
| 3810 |
|
|
&& h->def_regular)
|
| 3811 |
|
|
{
|
| 3812 |
|
|
asection *sec = h->root.u.def.section;
|
| 3813 |
|
|
rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
|
| 3814 |
|
|
rela.r_addend = (h->root.u.def.value
|
| 3815 |
|
|
+ sec->output_section->vma
|
| 3816 |
|
|
+ sec->output_offset);
|
| 3817 |
|
|
}
|
| 3818 |
|
|
else
|
| 3819 |
|
|
{
|
| 3820 |
|
|
rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
|
| 3821 |
|
|
rela.r_addend = 0;
|
| 3822 |
|
|
}
|
| 3823 |
|
|
|
| 3824 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
|
| 3825 |
|
|
sgot->contents + (h->got.offset & ~(bfd_vma) 1));
|
| 3826 |
|
|
sparc_elf_append_rela (output_bfd, srela, &rela);
|
| 3827 |
|
|
}
|
| 3828 |
|
|
|
| 3829 |
|
|
if (h->needs_copy)
|
| 3830 |
|
|
{
|
| 3831 |
|
|
asection *s;
|
| 3832 |
|
|
Elf_Internal_Rela rela;
|
| 3833 |
|
|
|
| 3834 |
|
|
/* This symbols needs a copy reloc. Set it up. */
|
| 3835 |
|
|
BFD_ASSERT (h->dynindx != -1);
|
| 3836 |
|
|
|
| 3837 |
|
|
s = bfd_get_section_by_name (h->root.u.def.section->owner,
|
| 3838 |
|
|
".rela.bss");
|
| 3839 |
|
|
BFD_ASSERT (s != NULL);
|
| 3840 |
|
|
|
| 3841 |
|
|
rela.r_offset = (h->root.u.def.value
|
| 3842 |
|
|
+ h->root.u.def.section->output_section->vma
|
| 3843 |
|
|
+ h->root.u.def.section->output_offset);
|
| 3844 |
|
|
rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
|
| 3845 |
|
|
rela.r_addend = 0;
|
| 3846 |
|
|
sparc_elf_append_rela (output_bfd, s, &rela);
|
| 3847 |
|
|
}
|
| 3848 |
|
|
|
| 3849 |
|
|
/* Mark some specially defined symbols as absolute. On VxWorks,
|
| 3850 |
|
|
_GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
|
| 3851 |
|
|
".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
|
| 3852 |
|
|
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
| 3853 |
|
|
|| (!htab->is_vxworks
|
| 3854 |
|
|
&& (h == htab->elf.hgot || h == htab->elf.hplt)))
|
| 3855 |
|
|
sym->st_shndx = SHN_ABS;
|
| 3856 |
|
|
|
| 3857 |
|
|
return TRUE;
|
| 3858 |
|
|
}
|
| 3859 |
|
|
|
| 3860 |
|
|
/* Finish up the dynamic sections. */
|
| 3861 |
|
|
|
| 3862 |
|
|
static bfd_boolean
|
| 3863 |
|
|
sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
|
| 3864 |
|
|
bfd *dynobj, asection *sdyn,
|
| 3865 |
|
|
asection *splt ATTRIBUTE_UNUSED)
|
| 3866 |
|
|
{
|
| 3867 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 3868 |
|
|
const struct elf_backend_data *bed;
|
| 3869 |
|
|
bfd_byte *dyncon, *dynconend;
|
| 3870 |
|
|
size_t dynsize;
|
| 3871 |
|
|
int stt_regidx = -1;
|
| 3872 |
|
|
bfd_boolean abi_64_p;
|
| 3873 |
|
|
|
| 3874 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 3875 |
|
|
bed = get_elf_backend_data (output_bfd);
|
| 3876 |
|
|
dynsize = bed->s->sizeof_dyn;
|
| 3877 |
|
|
dynconend = sdyn->contents + sdyn->size;
|
| 3878 |
|
|
abi_64_p = ABI_64_P (output_bfd);
|
| 3879 |
|
|
for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
|
| 3880 |
|
|
{
|
| 3881 |
|
|
Elf_Internal_Dyn dyn;
|
| 3882 |
|
|
const char *name;
|
| 3883 |
|
|
bfd_boolean size;
|
| 3884 |
|
|
|
| 3885 |
|
|
bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
|
| 3886 |
|
|
|
| 3887 |
|
|
if (htab->is_vxworks && dyn.d_tag == DT_RELASZ)
|
| 3888 |
|
|
{
|
| 3889 |
|
|
/* On VxWorks, DT_RELASZ should not include the relocations
|
| 3890 |
|
|
in .rela.plt. */
|
| 3891 |
|
|
if (htab->srelplt)
|
| 3892 |
|
|
{
|
| 3893 |
|
|
dyn.d_un.d_val -= htab->srelplt->size;
|
| 3894 |
|
|
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
| 3895 |
|
|
}
|
| 3896 |
|
|
}
|
| 3897 |
|
|
else if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
|
| 3898 |
|
|
{
|
| 3899 |
|
|
/* On VxWorks, DT_PLTGOT should point to the start of the GOT,
|
| 3900 |
|
|
not to the start of the PLT. */
|
| 3901 |
|
|
if (htab->sgotplt)
|
| 3902 |
|
|
{
|
| 3903 |
|
|
dyn.d_un.d_val = (htab->sgotplt->output_section->vma
|
| 3904 |
|
|
+ htab->sgotplt->output_offset);
|
| 3905 |
|
|
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
| 3906 |
|
|
}
|
| 3907 |
|
|
}
|
| 3908 |
|
|
else if (htab->is_vxworks
|
| 3909 |
|
|
&& elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
|
| 3910 |
|
|
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
| 3911 |
|
|
else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
|
| 3912 |
|
|
{
|
| 3913 |
|
|
if (stt_regidx == -1)
|
| 3914 |
|
|
{
|
| 3915 |
|
|
stt_regidx =
|
| 3916 |
|
|
_bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
|
| 3917 |
|
|
if (stt_regidx == -1)
|
| 3918 |
|
|
return FALSE;
|
| 3919 |
|
|
}
|
| 3920 |
|
|
dyn.d_un.d_val = stt_regidx++;
|
| 3921 |
|
|
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
| 3922 |
|
|
}
|
| 3923 |
|
|
else
|
| 3924 |
|
|
{
|
| 3925 |
|
|
switch (dyn.d_tag)
|
| 3926 |
|
|
{
|
| 3927 |
|
|
case DT_PLTGOT: name = ".plt"; size = FALSE; break;
|
| 3928 |
|
|
case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break;
|
| 3929 |
|
|
case DT_JMPREL: name = ".rela.plt"; size = FALSE; break;
|
| 3930 |
|
|
default: name = NULL; size = FALSE; break;
|
| 3931 |
|
|
}
|
| 3932 |
|
|
|
| 3933 |
|
|
if (name != NULL)
|
| 3934 |
|
|
{
|
| 3935 |
|
|
asection *s;
|
| 3936 |
|
|
|
| 3937 |
|
|
s = bfd_get_section_by_name (output_bfd, name);
|
| 3938 |
|
|
if (s == NULL)
|
| 3939 |
|
|
dyn.d_un.d_val = 0;
|
| 3940 |
|
|
else
|
| 3941 |
|
|
{
|
| 3942 |
|
|
if (! size)
|
| 3943 |
|
|
dyn.d_un.d_ptr = s->vma;
|
| 3944 |
|
|
else
|
| 3945 |
|
|
dyn.d_un.d_val = s->size;
|
| 3946 |
|
|
}
|
| 3947 |
|
|
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
| 3948 |
|
|
}
|
| 3949 |
|
|
}
|
| 3950 |
|
|
}
|
| 3951 |
|
|
return TRUE;
|
| 3952 |
|
|
}
|
| 3953 |
|
|
|
| 3954 |
|
|
/* Install the first PLT entry in a VxWorks executable and make sure that
|
| 3955 |
|
|
.rela.plt.unloaded relocations have the correct symbol indexes. */
|
| 3956 |
|
|
|
| 3957 |
|
|
static void
|
| 3958 |
|
|
sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
|
| 3959 |
|
|
{
|
| 3960 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 3961 |
|
|
Elf_Internal_Rela rela;
|
| 3962 |
|
|
bfd_vma got_base;
|
| 3963 |
|
|
bfd_byte *loc;
|
| 3964 |
|
|
|
| 3965 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 3966 |
|
|
|
| 3967 |
|
|
/* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
|
| 3968 |
|
|
got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
|
| 3969 |
|
|
+ htab->elf.hgot->root.u.def.section->output_offset
|
| 3970 |
|
|
+ htab->elf.hgot->root.u.def.value);
|
| 3971 |
|
|
|
| 3972 |
|
|
/* Install the initial PLT entry. */
|
| 3973 |
|
|
bfd_put_32 (output_bfd,
|
| 3974 |
|
|
sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
|
| 3975 |
|
|
htab->splt->contents);
|
| 3976 |
|
|
bfd_put_32 (output_bfd,
|
| 3977 |
|
|
sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
|
| 3978 |
|
|
htab->splt->contents + 4);
|
| 3979 |
|
|
bfd_put_32 (output_bfd,
|
| 3980 |
|
|
sparc_vxworks_exec_plt0_entry[2],
|
| 3981 |
|
|
htab->splt->contents + 8);
|
| 3982 |
|
|
bfd_put_32 (output_bfd,
|
| 3983 |
|
|
sparc_vxworks_exec_plt0_entry[3],
|
| 3984 |
|
|
htab->splt->contents + 12);
|
| 3985 |
|
|
bfd_put_32 (output_bfd,
|
| 3986 |
|
|
sparc_vxworks_exec_plt0_entry[4],
|
| 3987 |
|
|
htab->splt->contents + 16);
|
| 3988 |
|
|
|
| 3989 |
|
|
loc = htab->srelplt2->contents;
|
| 3990 |
|
|
|
| 3991 |
|
|
/* Add an unloaded relocation for the initial entry's "sethi". */
|
| 3992 |
|
|
rela.r_offset = (htab->splt->output_section->vma
|
| 3993 |
|
|
+ htab->splt->output_offset);
|
| 3994 |
|
|
rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
|
| 3995 |
|
|
rela.r_addend = 8;
|
| 3996 |
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
| 3997 |
|
|
loc += sizeof (Elf32_External_Rela);
|
| 3998 |
|
|
|
| 3999 |
|
|
/* Likewise the following "or". */
|
| 4000 |
|
|
rela.r_offset += 4;
|
| 4001 |
|
|
rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
|
| 4002 |
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
| 4003 |
|
|
loc += sizeof (Elf32_External_Rela);
|
| 4004 |
|
|
|
| 4005 |
|
|
/* Fix up the remaining .rela.plt.unloaded relocations. They may have
|
| 4006 |
|
|
the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
|
| 4007 |
|
|
in which symbols were output. */
|
| 4008 |
|
|
while (loc < htab->srelplt2->contents + htab->srelplt2->size)
|
| 4009 |
|
|
{
|
| 4010 |
|
|
Elf_Internal_Rela rel;
|
| 4011 |
|
|
|
| 4012 |
|
|
/* The entry's initial "sethi" (against _G_O_T_). */
|
| 4013 |
|
|
bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
|
| 4014 |
|
|
rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
|
| 4015 |
|
|
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
|
| 4016 |
|
|
loc += sizeof (Elf32_External_Rela);
|
| 4017 |
|
|
|
| 4018 |
|
|
/* The following "or" (also against _G_O_T_). */
|
| 4019 |
|
|
bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
|
| 4020 |
|
|
rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
|
| 4021 |
|
|
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
|
| 4022 |
|
|
loc += sizeof (Elf32_External_Rela);
|
| 4023 |
|
|
|
| 4024 |
|
|
/* The .got.plt entry (against _P_L_T_). */
|
| 4025 |
|
|
bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
|
| 4026 |
|
|
rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
|
| 4027 |
|
|
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
|
| 4028 |
|
|
loc += sizeof (Elf32_External_Rela);
|
| 4029 |
|
|
}
|
| 4030 |
|
|
}
|
| 4031 |
|
|
|
| 4032 |
|
|
/* Install the first PLT entry in a VxWorks shared object. */
|
| 4033 |
|
|
|
| 4034 |
|
|
static void
|
| 4035 |
|
|
sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
|
| 4036 |
|
|
{
|
| 4037 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 4038 |
|
|
unsigned int i;
|
| 4039 |
|
|
|
| 4040 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 4041 |
|
|
for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
|
| 4042 |
|
|
bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
|
| 4043 |
|
|
htab->splt->contents + i * 4);
|
| 4044 |
|
|
}
|
| 4045 |
|
|
|
| 4046 |
|
|
bfd_boolean
|
| 4047 |
|
|
_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
|
| 4048 |
|
|
{
|
| 4049 |
|
|
bfd *dynobj;
|
| 4050 |
|
|
asection *sdyn;
|
| 4051 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
| 4052 |
|
|
|
| 4053 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
| 4054 |
|
|
dynobj = htab->elf.dynobj;
|
| 4055 |
|
|
|
| 4056 |
|
|
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
| 4057 |
|
|
|
| 4058 |
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
| 4059 |
|
|
{
|
| 4060 |
|
|
asection *splt;
|
| 4061 |
|
|
|
| 4062 |
|
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
| 4063 |
|
|
BFD_ASSERT (splt != NULL && sdyn != NULL);
|
| 4064 |
|
|
|
| 4065 |
|
|
if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
|
| 4066 |
|
|
return FALSE;
|
| 4067 |
|
|
|
| 4068 |
|
|
/* Initialize the contents of the .plt section. */
|
| 4069 |
|
|
if (splt->size > 0)
|
| 4070 |
|
|
{
|
| 4071 |
|
|
if (htab->is_vxworks)
|
| 4072 |
|
|
{
|
| 4073 |
|
|
if (info->shared)
|
| 4074 |
|
|
sparc_vxworks_finish_shared_plt (output_bfd, info);
|
| 4075 |
|
|
else
|
| 4076 |
|
|
sparc_vxworks_finish_exec_plt (output_bfd, info);
|
| 4077 |
|
|
}
|
| 4078 |
|
|
else
|
| 4079 |
|
|
{
|
| 4080 |
|
|
memset (splt->contents, 0, htab->plt_header_size);
|
| 4081 |
|
|
if (!ABI_64_P (output_bfd))
|
| 4082 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
|
| 4083 |
|
|
splt->contents + splt->size - 4);
|
| 4084 |
|
|
}
|
| 4085 |
|
|
}
|
| 4086 |
|
|
|
| 4087 |
|
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
| 4088 |
|
|
= (htab->is_vxworks || !ABI_64_P (output_bfd))
|
| 4089 |
|
|
? 0 : htab->plt_entry_size;
|
| 4090 |
|
|
}
|
| 4091 |
|
|
|
| 4092 |
|
|
/* Set the first entry in the global offset table to the address of
|
| 4093 |
|
|
the dynamic section. */
|
| 4094 |
|
|
if (htab->sgot && htab->sgot->size > 0)
|
| 4095 |
|
|
{
|
| 4096 |
|
|
bfd_vma val = (sdyn ?
|
| 4097 |
|
|
sdyn->output_section->vma + sdyn->output_offset :
|
| 4098 |
|
|
0);
|
| 4099 |
|
|
|
| 4100 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->sgot->contents);
|
| 4101 |
|
|
}
|
| 4102 |
|
|
|
| 4103 |
|
|
if (htab->sgot)
|
| 4104 |
|
|
elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize =
|
| 4105 |
|
|
SPARC_ELF_WORD_BYTES (htab);
|
| 4106 |
|
|
|
| 4107 |
|
|
return TRUE;
|
| 4108 |
|
|
}
|
| 4109 |
|
|
|
| 4110 |
|
|
|
| 4111 |
|
|
/* Set the right machine number for a SPARC ELF file. */
|
| 4112 |
|
|
|
| 4113 |
|
|
bfd_boolean
|
| 4114 |
|
|
_bfd_sparc_elf_object_p (bfd *abfd)
|
| 4115 |
|
|
{
|
| 4116 |
|
|
if (ABI_64_P (abfd))
|
| 4117 |
|
|
{
|
| 4118 |
|
|
unsigned long mach = bfd_mach_sparc_v9;
|
| 4119 |
|
|
|
| 4120 |
|
|
if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
|
| 4121 |
|
|
mach = bfd_mach_sparc_v9b;
|
| 4122 |
|
|
else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
|
| 4123 |
|
|
mach = bfd_mach_sparc_v9a;
|
| 4124 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
|
| 4125 |
|
|
}
|
| 4126 |
|
|
else
|
| 4127 |
|
|
{
|
| 4128 |
|
|
if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
|
| 4129 |
|
|
{
|
| 4130 |
|
|
if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
|
| 4131 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
|
| 4132 |
|
|
bfd_mach_sparc_v8plusb);
|
| 4133 |
|
|
else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
|
| 4134 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
|
| 4135 |
|
|
bfd_mach_sparc_v8plusa);
|
| 4136 |
|
|
else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
|
| 4137 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
|
| 4138 |
|
|
bfd_mach_sparc_v8plus);
|
| 4139 |
|
|
else
|
| 4140 |
|
|
return FALSE;
|
| 4141 |
|
|
}
|
| 4142 |
|
|
else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
|
| 4143 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
|
| 4144 |
|
|
bfd_mach_sparc_sparclite_le);
|
| 4145 |
|
|
else
|
| 4146 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
|
| 4147 |
|
|
}
|
| 4148 |
|
|
}
|
| 4149 |
|
|
|
| 4150 |
|
|
/* Return address for Ith PLT stub in section PLT, for relocation REL
|
| 4151 |
|
|
or (bfd_vma) -1 if it should not be included. */
|
| 4152 |
|
|
|
| 4153 |
|
|
bfd_vma
|
| 4154 |
|
|
_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
|
| 4155 |
|
|
{
|
| 4156 |
|
|
if (ABI_64_P (plt->owner))
|
| 4157 |
|
|
{
|
| 4158 |
|
|
bfd_vma j;
|
| 4159 |
|
|
|
| 4160 |
|
|
i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
|
| 4161 |
|
|
if (i < PLT64_LARGE_THRESHOLD)
|
| 4162 |
|
|
return plt->vma + i * PLT64_ENTRY_SIZE;
|
| 4163 |
|
|
|
| 4164 |
|
|
j = (i - PLT64_LARGE_THRESHOLD) % 160;
|
| 4165 |
|
|
i -= j;
|
| 4166 |
|
|
return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
|
| 4167 |
|
|
}
|
| 4168 |
|
|
else
|
| 4169 |
|
|
return rel->address;
|
| 4170 |
|
|
}
|