blob: 63558c7f55597aecec41b1ae54e5fc7c17bb9e50 [file] [log] [blame]
/* SPARC-specific support for ELF
Copyright (C) 2005-2016 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
/* This file handles functionality common to the different SPARC ABI's. */
#include "sysdep.h"
#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "libiberty.h"
#include "elf-bfd.h"
#include "elf/sparc.h"
#include "opcode/sparc.h"
#include "elfxx-sparc.h"
#include "elf-vxworks.h"
#include "objalloc.h"
#include "hashtab.h"
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
#define MINUS_ONE (~ (bfd_vma) 0)
#define ABI_64_P(abfd) \
(get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
/* The relocation "howto" table. */
/* Utility for performing the standard initial work of an instruction
relocation.
*PRELOCATION will contain the relocated item.
*PINSN will contain the instruction from the input stream.
If the result is `bfd_reloc_other' the caller can continue with
performing the relocation. Otherwise it must stop and return the
value to its caller. */
static bfd_reloc_status_type
init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
void * data, asection *input_section, bfd *output_bfd,
bfd_vma *prelocation, bfd_vma *pinsn)
{
bfd_vma relocation;
reloc_howto_type *howto = reloc_entry->howto;
if (output_bfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0
&& (! howto->partial_inplace
|| reloc_entry->addend == 0))
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
/* This works because partial_inplace is FALSE. */
if (output_bfd != NULL)
return bfd_reloc_continue;
if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
return bfd_reloc_outofrange;
relocation = (symbol->value
+ symbol->section->output_section->vma
+ symbol->section->output_offset);
relocation += reloc_entry->addend;
if (howto->pc_relative)
{
relocation -= (input_section->output_section->vma
+ input_section->output_offset);
relocation -= reloc_entry->address;
}
*prelocation = relocation;
*pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
return bfd_reloc_other;
}
/* For unsupported relocs. */
static bfd_reloc_status_type
sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
arelent *reloc_entry ATTRIBUTE_UNUSED,
asymbol *symbol ATTRIBUTE_UNUSED,
void * data ATTRIBUTE_UNUSED,
asection *input_section ATTRIBUTE_UNUSED,
bfd *output_bfd ATTRIBUTE_UNUSED,
char **error_message ATTRIBUTE_UNUSED)
{
return bfd_reloc_notsupported;
}
/* Handle the WDISP16 reloc. */
static bfd_reloc_status_type
sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
void * data, asection *input_section, bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
{
bfd_vma relocation;
bfd_vma insn;
bfd_reloc_status_type status;
status = init_insn_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, &relocation, &insn);
if (status != bfd_reloc_other)
return status;
insn &= ~ (bfd_vma) 0x303fff;
insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
if ((bfd_signed_vma) relocation < - 0x40000
|| (bfd_signed_vma) relocation > 0x3ffff)
return bfd_reloc_overflow;
else
return bfd_reloc_ok;
}
/* Handle the WDISP10 reloc. */
static bfd_reloc_status_type
sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
void * data, asection *input_section, bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
{
bfd_vma relocation;
bfd_vma insn;
bfd_reloc_status_type status;
status = init_insn_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, &relocation, &insn);
if (status != bfd_reloc_other)
return status;
insn &= ~ (bfd_vma) 0x181fe0;
insn |= (((relocation >> 2) & 0x300) << 11)
| (((relocation >> 2) & 0xff) << 5);
bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
if ((bfd_signed_vma) relocation < - 0x1000
|| (bfd_signed_vma) relocation > 0xfff)
return bfd_reloc_overflow;
else
return bfd_reloc_ok;
}
/* Handle the HIX22 reloc. */
static bfd_reloc_status_type
sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
void * data, asection *input_section, bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
{
bfd_vma relocation;
bfd_vma insn;
bfd_reloc_status_type status;
status = init_insn_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, &relocation, &insn);
if (status != bfd_reloc_other)
return status;
relocation ^= MINUS_ONE;
insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
return bfd_reloc_overflow;
else
return bfd_reloc_ok;
}
/* Handle the LOX10 reloc. */
static bfd_reloc_status_type
sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
void * data, asection *input_section, bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
{
bfd_vma relocation;
bfd_vma insn;
bfd_reloc_status_type status;
status = init_insn_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, &relocation, &insn);
if (status != bfd_reloc_other)
return status;
insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
return bfd_reloc_ok;
}
static reloc_howto_type _bfd_sparc_elf_howto_table[] =
{
HOWTO(R_SPARC_NONE, 0,3, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
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),
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),
HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
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),
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),
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),
HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
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),
HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
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),
HOWTO(R_SPARC_H34,12,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",FALSE,0,0x003fffff,FALSE),
HOWTO(R_SPARC_SIZE32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",FALSE,0,0xffffffff,TRUE),
HOWTO(R_SPARC_SIZE64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",FALSE,0,MINUS_ONE, TRUE),
HOWTO(R_SPARC_WDISP10,2,2,10,TRUE, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",FALSE,0,0x00000000,TRUE),
};
static reloc_howto_type sparc_jmp_irel_howto =
HOWTO(R_SPARC_JMP_IREL, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",FALSE,0,0x00000000,TRUE);
static reloc_howto_type sparc_irelative_howto =
HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE);
static reloc_howto_type sparc_vtinherit_howto =
HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
static reloc_howto_type sparc_vtentry_howto =
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);
static reloc_howto_type sparc_rev32_howto =
HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
reloc_howto_type *
_bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
/* We explicitly handle each relocation type in the switch
instead of using a lookup table for efficiency. */
switch (code)
{
case BFD_RELOC_NONE:
return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
case BFD_RELOC_8:
return &_bfd_sparc_elf_howto_table[R_SPARC_8];
case BFD_RELOC_16:
return &_bfd_sparc_elf_howto_table[R_SPARC_16];
case BFD_RELOC_32:
return &_bfd_sparc_elf_howto_table[R_SPARC_32];
case BFD_RELOC_8_PCREL:
return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
case BFD_RELOC_16_PCREL:
return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
case BFD_RELOC_32_PCREL:
return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
case BFD_RELOC_32_PCREL_S2:
return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
case BFD_RELOC_SPARC_WDISP22:
return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
case BFD_RELOC_HI22:
return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
case BFD_RELOC_SPARC22:
return &_bfd_sparc_elf_howto_table[R_SPARC_22];
case BFD_RELOC_SPARC13:
return &_bfd_sparc_elf_howto_table[R_SPARC_13];
case BFD_RELOC_LO10:
return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
case BFD_RELOC_SPARC_GOT10:
return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
case BFD_RELOC_SPARC_GOT13:
return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
case BFD_RELOC_SPARC_GOT22:
return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
case BFD_RELOC_SPARC_PC10:
return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
case BFD_RELOC_SPARC_PC22:
return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
case BFD_RELOC_SPARC_WPLT30:
return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
case BFD_RELOC_SPARC_COPY:
return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
case BFD_RELOC_SPARC_GLOB_DAT:
return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
case BFD_RELOC_SPARC_JMP_SLOT:
return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
case BFD_RELOC_SPARC_RELATIVE:
return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
case BFD_RELOC_SPARC_UA32:
return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
case BFD_RELOC_SPARC_PLT32:
return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
case BFD_RELOC_SPARC_10:
return &_bfd_sparc_elf_howto_table[R_SPARC_10];
case BFD_RELOC_SPARC_11:
return &_bfd_sparc_elf_howto_table[R_SPARC_11];
case BFD_RELOC_SPARC_64:
return &_bfd_sparc_elf_howto_table[R_SPARC_64];
case BFD_RELOC_SPARC_OLO10:
return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
case BFD_RELOC_SPARC_HH22:
return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
case BFD_RELOC_SPARC_HM10:
return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
case BFD_RELOC_SPARC_LM22:
return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
case BFD_RELOC_SPARC_PC_HH22:
return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
case BFD_RELOC_SPARC_PC_HM10:
return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
case BFD_RELOC_SPARC_PC_LM22:
return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
case BFD_RELOC_SPARC_WDISP16:
return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
case BFD_RELOC_SPARC_WDISP19:
return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
case BFD_RELOC_SPARC_7:
return &_bfd_sparc_elf_howto_table[R_SPARC_7];
case BFD_RELOC_SPARC_5:
return &_bfd_sparc_elf_howto_table[R_SPARC_5];
case BFD_RELOC_SPARC_6:
return &_bfd_sparc_elf_howto_table[R_SPARC_6];
case BFD_RELOC_SPARC_DISP64:
return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
case BFD_RELOC_SPARC_PLT64:
return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
case BFD_RELOC_SPARC_HIX22:
return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
case BFD_RELOC_SPARC_LOX10:
return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
case BFD_RELOC_SPARC_H44:
return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
case BFD_RELOC_SPARC_M44:
return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
case BFD_RELOC_SPARC_L44:
return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
case BFD_RELOC_SPARC_REGISTER:
return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
case BFD_RELOC_SPARC_UA64:
return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
case BFD_RELOC_SPARC_UA16:
return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
case BFD_RELOC_SPARC_TLS_GD_HI22:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
case BFD_RELOC_SPARC_TLS_GD_LO10:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
case BFD_RELOC_SPARC_TLS_GD_ADD:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
case BFD_RELOC_SPARC_TLS_GD_CALL:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
case BFD_RELOC_SPARC_TLS_LDM_HI22:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
case BFD_RELOC_SPARC_TLS_LDM_LO10:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
case BFD_RELOC_SPARC_TLS_LDM_ADD:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
case BFD_RELOC_SPARC_TLS_LDM_CALL:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
case BFD_RELOC_SPARC_TLS_LDO_HIX22:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
case BFD_RELOC_SPARC_TLS_LDO_LOX10:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
case BFD_RELOC_SPARC_TLS_LDO_ADD:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
case BFD_RELOC_SPARC_TLS_IE_HI22:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
case BFD_RELOC_SPARC_TLS_IE_LO10:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
case BFD_RELOC_SPARC_TLS_IE_LD:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
case BFD_RELOC_SPARC_TLS_IE_LDX:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
case BFD_RELOC_SPARC_TLS_IE_ADD:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
case BFD_RELOC_SPARC_TLS_LE_HIX22:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
case BFD_RELOC_SPARC_TLS_LE_LOX10:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
case BFD_RELOC_SPARC_TLS_DTPMOD32:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
case BFD_RELOC_SPARC_TLS_DTPMOD64:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
case BFD_RELOC_SPARC_TLS_DTPOFF32:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
case BFD_RELOC_SPARC_TLS_DTPOFF64:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
case BFD_RELOC_SPARC_TLS_TPOFF32:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
case BFD_RELOC_SPARC_TLS_TPOFF64:
return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
case BFD_RELOC_SPARC_GOTDATA_HIX22:
return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
case BFD_RELOC_SPARC_GOTDATA_LOX10:
return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
case BFD_RELOC_SPARC_GOTDATA_OP:
return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
case BFD_RELOC_SPARC_H34:
return &_bfd_sparc_elf_howto_table[R_SPARC_H34];
case BFD_RELOC_SPARC_SIZE32:
return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32];
case BFD_RELOC_SPARC_SIZE64:
return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64];
case BFD_RELOC_SPARC_WDISP10:
return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10];
case BFD_RELOC_SPARC_JMP_IREL:
return &sparc_jmp_irel_howto;
case BFD_RELOC_SPARC_IRELATIVE:
return &sparc_irelative_howto;
case BFD_RELOC_VTABLE_INHERIT:
return &sparc_vtinherit_howto;
case BFD_RELOC_VTABLE_ENTRY:
return &sparc_vtentry_howto;
case BFD_RELOC_SPARC_REV32:
return &sparc_rev32_howto;
default:
break;
}
bfd_set_error (bfd_error_bad_value);
return NULL;
}
reloc_howto_type *
_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
const char *r_name)
{
unsigned int i;
for (i = 0;
i < (sizeof (_bfd_sparc_elf_howto_table)
/ sizeof (_bfd_sparc_elf_howto_table[0]));
i++)
if (_bfd_sparc_elf_howto_table[i].name != NULL
&& strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
return &_bfd_sparc_elf_howto_table[i];
if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
return &sparc_vtinherit_howto;
if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
return &sparc_vtentry_howto;
if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
return &sparc_rev32_howto;
return NULL;
}
reloc_howto_type *
_bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
{
switch (r_type)
{
case R_SPARC_JMP_IREL:
return &sparc_jmp_irel_howto;
case R_SPARC_IRELATIVE:
return &sparc_irelative_howto;
case R_SPARC_GNU_VTINHERIT:
return &sparc_vtinherit_howto;
case R_SPARC_GNU_VTENTRY:
return &sparc_vtentry_howto;
case R_SPARC_REV32:
return &sparc_rev32_howto;
default:
if (r_type >= (unsigned int) R_SPARC_max_std)
{
(*_bfd_error_handler) (_("invalid relocation type %d"),
(int) r_type);
r_type = R_SPARC_NONE;
}
return &_bfd_sparc_elf_howto_table[r_type];
}
}
/* Both 32-bit and 64-bit sparc encode this in an identical manner,
so just take advantage of that. */
#define SPARC_ELF_R_TYPE(r_info) \
((r_info) & 0xff)
void
_bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
Elf_Internal_Rela *dst)
{
unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
}
/* The nop opcode we use. */
#define SPARC_NOP 0x01000000
#define SPARC_INSN_BYTES 4
/* The SPARC linker needs to keep track of the number of relocs that it
decides to copy as dynamic relocs in check_relocs for each symbol.
This is so that it can later discard them if they are found to be
unnecessary. We store the information in a field extending the
regular ELF linker hash table. */
struct _bfd_sparc_elf_dyn_relocs
{
struct _bfd_sparc_elf_dyn_relocs *next;
/* The input section of the reloc. */
asection *sec;
/* Total number of relocs copied for the input section. */
bfd_size_type count;
/* Number of pc-relative relocs copied for the input section. */
bfd_size_type pc_count;
};
/* SPARC ELF linker hash entry. */
struct _bfd_sparc_elf_link_hash_entry
{
struct elf_link_hash_entry elf;
/* Track dynamic relocs copied for this symbol. */
struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
#define GOT_UNKNOWN 0
#define GOT_NORMAL 1
#define GOT_TLS_GD 2
#define GOT_TLS_IE 3
unsigned char tls_type;
};
#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
struct _bfd_sparc_elf_obj_tdata
{
struct elf_obj_tdata root;
/* tls_type for each local got entry. */
char *local_got_tls_type;
/* TRUE if TLS GD relocs has been seen for this object. */
bfd_boolean has_tlsgd;
};
#define _bfd_sparc_elf_tdata(abfd) \
((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
#define _bfd_sparc_elf_local_got_tls_type(abfd) \
(_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
#define is_sparc_elf(bfd) \
(bfd_get_flavour (bfd) == bfd_target_elf_flavour \
&& elf_tdata (bfd) != NULL \
&& elf_object_id (bfd) == SPARC_ELF_DATA)
bfd_boolean
_bfd_sparc_elf_mkobject (bfd *abfd)
{
return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
SPARC_ELF_DATA);
}
static void
sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
{
bfd_put_32 (abfd, val, ptr);
}
static void
sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
{
bfd_put_64 (abfd, val, ptr);
}
static void
sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
{
const struct elf_backend_data *bed;
bfd_byte *loc;
bed = get_elf_backend_data (abfd);
loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
bed->s->swap_reloca_out (abfd, rel, loc);
}
static bfd_vma
sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
bfd_vma rel_index ATTRIBUTE_UNUSED,
bfd_vma type ATTRIBUTE_UNUSED)
{
return ELF64_R_INFO (rel_index,
(in_rel ?
ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
type) : type));
}
static bfd_vma
sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
bfd_vma rel_index, bfd_vma type)
{
return ELF32_R_INFO (rel_index, type);
}
static bfd_vma
sparc_elf_r_symndx_64 (bfd_vma r_info)
{
bfd_vma r_symndx = ELF32_R_SYM (r_info);
return (r_symndx >> 24);
}
static bfd_vma
sparc_elf_r_symndx_32 (bfd_vma r_info)
{
return ELF32_R_SYM (r_info);
}
/* PLT/GOT stuff */
#define PLT32_ENTRY_SIZE 12
#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
/* The first four entries in a 32-bit procedure linkage table are reserved,
and the initial contents are unimportant (we zero them out).
Subsequent entries look like this. See the SVR4 ABI SPARC
supplement to see how this works. */
/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
#define PLT32_ENTRY_WORD0 0x03000000
/* b,a .plt0. We fill in the offset later. */
#define PLT32_ENTRY_WORD1 0x30800000
/* nop. */
#define PLT32_ENTRY_WORD2 SPARC_NOP
static int
sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
bfd_vma max ATTRIBUTE_UNUSED,
bfd_vma *r_offset)
{
bfd_put_32 (output_bfd,
PLT32_ENTRY_WORD0 + offset,
splt->contents + offset);
bfd_put_32 (output_bfd,
(PLT32_ENTRY_WORD1
+ (((- (offset + 4)) >> 2) & 0x3fffff)),
splt->contents + offset + 4);
bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
splt->contents + offset + 8);
*r_offset = offset;
return offset / PLT32_ENTRY_SIZE - 4;
}
/* Both the headers and the entries are icache aligned. */
#define PLT64_ENTRY_SIZE 32
#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
#define PLT64_LARGE_THRESHOLD 32768
static int
sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
bfd_vma max, bfd_vma *r_offset)
{
unsigned char *entry = splt->contents + offset;
const unsigned int nop = SPARC_NOP;
int plt_index;
if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
{
unsigned int sethi, ba;
*r_offset = offset;
plt_index = (offset / PLT64_ENTRY_SIZE);
sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
ba = 0x30680000
| (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
}
else
{
unsigned char *ptr;
unsigned int ldx;
int block, last_block, ofs, last_ofs, chunks_this_block;
const int insn_chunk_size = (6 * 4);
const int ptr_chunk_size = (1 * 8);
const int entries_per_block = 160;
const int block_size = entries_per_block * (insn_chunk_size
+ ptr_chunk_size);
/* Entries 32768 and higher are grouped into blocks of 160.
The blocks are further subdivided into 160 sequences of
6 instructions and 160 pointers. If a block does not require
the full 160 entries, let's say it requires N, then there
will be N sequences of 6 instructions and N pointers. */
offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
block = offset / block_size;
last_block = max / block_size;
if (block != last_block)
{
chunks_this_block = 160;
}
else
{
last_ofs = max % block_size;
chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
}
ofs = offset % block_size;
plt_index = (PLT64_LARGE_THRESHOLD +
(block * 160) +
(ofs / insn_chunk_size));
ptr = splt->contents
+ (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
+ (block * block_size)
+ (chunks_this_block * insn_chunk_size)
+ (ofs / insn_chunk_size) * ptr_chunk_size;
*r_offset = (bfd_vma) (ptr - splt->contents);
ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
/* mov %o7,%g5
call .+8
nop
ldx [%o7+P],%g1
jmpl %o7+%g1,%g1
mov %g5,%o7 */
bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
}
return plt_index - 4;
}
/* The format of the first PLT entry in a VxWorks executable. */
static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
{
0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
0xc4008000, /* ld [ %g2 ], %g2 */
0x81c08000, /* jmp %g2 */
0x01000000 /* nop */
};
/* The format of subsequent PLT entries. */
static const bfd_vma sparc_vxworks_exec_plt_entry[] =
{
0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
0xc2004000, /* ld [ %g1 ], %g1 */
0x81c04000, /* jmp %g1 */
0x01000000, /* nop */
0x03000000, /* sethi %hi(f@pltindex), %g1 */
0x10800000, /* b _PLT_resolve */
0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
};
/* The format of the first PLT entry in a VxWorks shared object. */
static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
{
0xc405e008, /* ld [ %l7 + 8 ], %g2 */
0x81c08000, /* jmp %g2 */
0x01000000 /* nop */
};
/* The format of subsequent PLT entries. */
static const bfd_vma sparc_vxworks_shared_plt_entry[] =
{
0x03000000, /* sethi %hi(f@got), %g1 */
0x82106000, /* or %g1, %lo(f@got), %g1 */
0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
0x81c04000, /* jmp %g1 */
0x01000000, /* nop */
0x03000000, /* sethi %hi(f@pltindex), %g1 */
0x10800000, /* b _PLT_resolve */
0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
};
#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
htab->put_word(bfd, val, ptr)
#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
htab->r_info(in_rel, index, type)
#define SPARC_ELF_R_SYMNDX(htab, r_info) \
htab->r_symndx(r_info)
#define SPARC_ELF_WORD_BYTES(htab) \
htab->bytes_per_word
#define SPARC_ELF_RELA_BYTES(htab) \
htab->bytes_per_rela
#define SPARC_ELF_DTPOFF_RELOC(htab) \
htab->dtpoff_reloc
#define SPARC_ELF_DTPMOD_RELOC(htab) \
htab->dtpmod_reloc
#define SPARC_ELF_TPOFF_RELOC(htab) \
htab->tpoff_reloc
#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
htab->build_plt_entry (obfd, splt, off, max, r_off)
/* Create an entry in an SPARC ELF linker hash table. */
static struct bfd_hash_entry *
link_hash_newfunc (struct bfd_hash_entry *entry,
struct bfd_hash_table *table, const char *string)
{
/* Allocate the structure if it has not already been allocated by a
subclass. */
if (entry == NULL)
{
entry = bfd_hash_allocate (table,
sizeof (struct _bfd_sparc_elf_link_hash_entry));
if (entry == NULL)
return entry;
}
/* Call the allocation method of the superclass. */
entry = _bfd_elf_link_hash_newfunc (entry, table, string);
if (entry != NULL)
{
struct _bfd_sparc_elf_link_hash_entry *eh;
eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
eh->dyn_relocs = NULL;
eh->tls_type = GOT_UNKNOWN;
}
return entry;
}
/* The name of the dynamic interpreter. This is put in the .interp
section. */
#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
/* Compute a hash of a local hash entry. We use elf_link_hash_entry
for local symbol so that we can handle local STT_GNU_IFUNC symbols
as global symbol. We reuse indx and dynstr_index for local symbol
hash since they aren't used by global symbols in this backend. */
static hashval_t
elf_sparc_local_htab_hash (const void *ptr)
{
struct elf_link_hash_entry *h
= (struct elf_link_hash_entry *) ptr;
return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
}
/* Compare local hash entries. */
static int
elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
{
struct elf_link_hash_entry *h1
= (struct elf_link_hash_entry *) ptr1;
struct elf_link_hash_entry *h2
= (struct elf_link_hash_entry *) ptr2;
return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
}
/* Find and/or create a hash entry for local symbol. */
static struct elf_link_hash_entry *
elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
bfd *abfd, const Elf_Internal_Rela *rel,
bfd_boolean create)
{
struct _bfd_sparc_elf_link_hash_entry e, *ret;
asection *sec = abfd->sections;
unsigned long r_symndx;
hashval_t h;
void **slot;
r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
e.elf.indx = sec->id;
e.elf.dynstr_index = r_symndx;
slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
create ? INSERT : NO_INSERT);
if (!slot)
return NULL;
if (*slot)
{
ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
return &ret->elf;
}
ret = (struct _bfd_sparc_elf_link_hash_entry *)
objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
sizeof (struct _bfd_sparc_elf_link_hash_entry));
if (ret)
{
memset (ret, 0, sizeof (*ret));
ret->elf.indx = sec->id;
ret->elf.dynstr_index = r_symndx;
ret->elf.dynindx = -1;
ret->elf.plt.offset = (bfd_vma) -1;
ret->elf.got.offset = (bfd_vma) -1;
*slot = ret;
}
return &ret->elf;
}
/* Destroy a SPARC ELF linker hash table. */
static void
_bfd_sparc_elf_link_hash_table_free (bfd *obfd)
{
struct _bfd_sparc_elf_link_hash_table *htab
= (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
if (htab->loc_hash_table)
htab_delete (htab->loc_hash_table);
if (htab->loc_hash_memory)
objalloc_free ((struct objalloc *) htab->loc_hash_memory);
_bfd_elf_link_hash_table_free (obfd);
}
/* Create a SPARC ELF linker hash table. */
struct bfd_link_hash_table *
_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
{
struct _bfd_sparc_elf_link_hash_table *ret;
bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
if (ret == NULL)
return NULL;
if (ABI_64_P (abfd))
{
ret->put_word = sparc_put_word_64;
ret->r_info = sparc_elf_r_info_64;
ret->r_symndx = sparc_elf_r_symndx_64;
ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
ret->word_align_power = 3;
ret->align_power_max = 4;
ret->bytes_per_word = 8;
ret->bytes_per_rela = sizeof (Elf64_External_Rela);
ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
ret->build_plt_entry = sparc64_plt_entry_build;
ret->plt_header_size = PLT64_HEADER_SIZE;
ret->plt_entry_size = PLT64_ENTRY_SIZE;
}
else
{
ret->put_word = sparc_put_word_32;
ret->r_info = sparc_elf_r_info_32;
ret->r_symndx = sparc_elf_r_symndx_32;
ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
ret->word_align_power = 2;
ret->align_power_max = 3;
ret->bytes_per_word = 4;
ret->bytes_per_rela = sizeof (Elf32_External_Rela);
ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
ret->build_plt_entry = sparc32_plt_entry_build;
ret->plt_header_size = PLT32_HEADER_SIZE;
ret->plt_entry_size = PLT32_ENTRY_SIZE;
}
if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
sizeof (struct _bfd_sparc_elf_link_hash_entry),
SPARC_ELF_DATA))
{
free (ret);
return NULL;
}
ret->loc_hash_table = htab_try_create (1024,
elf_sparc_local_htab_hash,
elf_sparc_local_htab_eq,
NULL);
ret->loc_hash_memory = objalloc_create ();
if (!ret->loc_hash_table || !ret->loc_hash_memory)
{
_bfd_sparc_elf_link_hash_table_free (abfd);
return NULL;
}
ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
return &ret->elf.root;
}
/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
.rela.bss sections in DYNOBJ, and set up shortcuts to them in our
hash table. */
bfd_boolean
_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
struct bfd_link_info *info)
{
struct _bfd_sparc_elf_link_hash_table *htab;
htab = _bfd_sparc_elf_hash_table (info);
BFD_ASSERT (htab != NULL);
if (!_bfd_elf_create_dynamic_sections (dynobj, info))
return FALSE;
htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
if (!bfd_link_pic (info))
htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
if (htab->is_vxworks)
{
if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
return FALSE;
if (bfd_link_pic (info))
{
htab->plt_header_size
= 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
htab->plt_entry_size
= 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
}
else
{
htab->plt_header_size
= 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
htab->plt_entry_size
= 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
}
}
if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
|| (!bfd_link_pic (info) && !htab->srelbss))
abort ();
return TRUE;
}
static bfd_boolean
create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
{
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
struct elf_link_hash_table *htab = elf_hash_table (info);
flagword flags, pltflags;
asection *s;
if (htab->irelifunc != NULL || htab->iplt != NULL)
return TRUE;
flags = bed->dynamic_sec_flags;
pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
if (s == NULL
|| ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
return FALSE;
htab->iplt = s;
s = bfd_make_section_with_flags (abfd, ".rela.iplt",
flags | SEC_READONLY);
if (s == NULL
|| ! bfd_set_section_alignment (abfd, s,
bed->s->log_file_align))
return FALSE;
htab->irelplt = s;
return TRUE;
}
/* Copy the extra info we tack onto an elf_link_hash_entry. */
void
_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
struct elf_link_hash_entry *dir,
struct elf_link_hash_entry *ind)
{
struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
if (eind->dyn_relocs != NULL)
{
if (edir->dyn_relocs != NULL)
{
struct _bfd_sparc_elf_dyn_relocs **pp;
struct _bfd_sparc_elf_dyn_relocs *p;
/* Add reloc counts against the indirect sym to the direct sym
list. Merge any entries against the same section. */
for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
{
struct _bfd_sparc_elf_dyn_relocs *q;
for (q = edir->dyn_relocs; q != NULL; q = q->next)
if (q->sec == p->sec)
{
q->pc_count += p->pc_count;
q->count += p->count;
*pp = p->next;
break;
}
if (q == NULL)
pp = &p->next;
}
*pp = edir->dyn_relocs;
}
edir->dyn_relocs = eind->dyn_relocs;
eind->dyn_relocs = NULL;
}
if (ind->root.type == bfd_link_hash_indirect
&& dir->got.refcount <= 0)
{
edir->tls_type = eind->tls_type;
eind->tls_type = GOT_UNKNOWN;
}
_bfd_elf_link_hash_copy_indirect (info, dir, ind);
}
static int
sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
int r_type, int is_local)
{
if (! ABI_64_P (abfd)
&& r_type == R_SPARC_TLS_GD_HI22
&& ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
r_type = R_SPARC_REV32;
if (bfd_link_pic (info))
return r_type;
switch (r_type)
{
case R_SPARC_TLS_GD_HI22:
if (is_local)
return R_SPARC_TLS_LE_HIX22;
return R_SPARC_TLS_IE_HI22;
case R_SPARC_TLS_GD_LO10:
if (is_local)
return R_SPARC_TLS_LE_LOX10;
return R_SPARC_TLS_IE_LO10;
case R_SPARC_TLS_IE_HI22:
if (is_local)
return R_SPARC_TLS_LE_HIX22;
return r_type;
case R_SPARC_TLS_IE_LO10:
if (is_local)
return R_SPARC_TLS_LE_LOX10;
return r_type;
case R_SPARC_TLS_LDM_HI22:
return R_SPARC_TLS_LE_HIX22;
case R_SPARC_TLS_LDM_LO10:
return R_SPARC_TLS_LE_LOX10;
}
return r_type;
}
/* Look through the relocs for a section during the first phase, and
allocate space in the global offset table or procedure linkage
table. */
bfd_boolean
_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
asection *sec, const Elf_Internal_Rela *relocs)
{
struct _bfd_sparc_elf_link_hash_table *htab;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
asection *sreloc;
int num_relocs;
bfd_boolean checked_tlsgd = FALSE;
if (bfd_link_relocatable (info))
return TRUE;
htab = _bfd_sparc_elf_hash_table (info);
BFD_ASSERT (htab != NULL);
symtab_hdr = &elf_symtab_hdr (abfd);
sym_hashes = elf_sym_hashes (abfd);
sreloc = NULL;
if (ABI_64_P (abfd))
num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
else
num_relocs = sec->reloc_count;
BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
if (htab->elf.dynobj == NULL)
htab->elf.dynobj = abfd;
if (!create_ifunc_sections (htab->elf.dynobj, info))
return FALSE;
rel_end = relocs + num_relocs;
for (rel = relocs; rel < rel_end; rel++)
{
unsigned int r_type;
unsigned long r_symndx;
struct elf_link_hash_entry *h;
Elf_Internal_Sym *isym;
r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
r_type = SPARC_ELF_R_TYPE (rel->r_info);
if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
{
(*_bfd_error_handler) (_("%B: bad symbol index: %d"),
abfd, r_symndx);
return FALSE;
}
isym = NULL;
if (r_symndx < symtab_hdr->sh_info)
{
/* A local symbol. */
isym = bfd_sym_from_r_symndx (&htab->sym_cache,
abfd, r_symndx);
if (isym == NULL)
return FALSE;
/* Check relocation against local STT_GNU_IFUNC symbol. */
if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
{
h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
TRUE);
if (h == NULL)
return FALSE;
/* Fake a STT_GNU_IFUNC symbol. */
h->type = STT_GNU_IFUNC;
h->def_regular = 1;
h->ref_regular = 1;
h->forced_local = 1;
h->root.type = bfd_link_hash_defined;
}
else
h = NULL;
}
else
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
/* PR15323, ref flags aren't set for references in the same
object. */
h->root.non_ir_ref = 1;
}
if (h && h->type == STT_GNU_IFUNC)
{
if (h->def_regular)
{
h->ref_regular = 1;
h->plt.refcount += 1;
}
}
/* Compatibility with old R_SPARC_REV32 reloc conflicting
with R_SPARC_TLS_GD_HI22. */
if (! ABI_64_P (abfd) && ! checked_tlsgd)
switch (r_type)
{
case R_SPARC_TLS_GD_HI22:
{
const Elf_Internal_Rela *relt;
for (relt = rel + 1; relt < rel_end; relt++)
if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
|| ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
|| ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
break;
checked_tlsgd = TRUE;
_bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
}
break;
case R_SPARC_TLS_GD_LO10:
case R_SPARC_TLS_GD_ADD:
case R_SPARC_TLS_GD_CALL:
checked_tlsgd = TRUE;
_bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
break;
}
r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
switch (r_type)
{
case R_SPARC_TLS_LDM_HI22:
case R_SPARC_TLS_LDM_LO10:
htab->tls_ldm_got.refcount += 1;
break;
case R_SPARC_TLS_LE_HIX22:
case R_SPARC_TLS_LE_LOX10:
if (bfd_link_pic (info))
goto r_sparc_plt32;
break;
case R_SPARC_TLS_IE_HI22:
case R_SPARC_TLS_IE_LO10:
if (bfd_link_pic (info))
info->flags |= DF_STATIC_TLS;
/* Fall through */
case R_SPARC_GOT10:
case R_SPARC_GOT13:
case R_SPARC_GOT22:
case R_SPARC_GOTDATA_HIX22:
case R_SPARC_GOTDATA_LOX10:
case R_SPARC_GOTDATA_OP_HIX22:
case R_SPARC_GOTDATA_OP_LOX10:
case R_SPARC_TLS_GD_HI22:
case R_SPARC_TLS_GD_LO10:
/* This symbol requires a global offset table entry. */
{
int tls_type, old_tls_type;
switch (r_type)
{
default:
case R_SPARC_GOT10:
case R_SPARC_GOT13:
case R_SPARC_GOT22:
case R_SPARC_GOTDATA_OP_HIX22:
case R_SPARC_GOTDATA_OP_LOX10:
tls_type = GOT_NORMAL;
break;
case R_SPARC_TLS_GD_HI22:
case R_SPARC_TLS_GD_LO10:
tls_type = GOT_TLS_GD;
break;
case R_SPARC_TLS_IE_HI22:
case R_SPARC_TLS_IE_LO10:
tls_type = GOT_TLS_IE;
break;
}
if (h != NULL)
{
h->got.refcount += 1;
old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
}
else
{
bfd_signed_vma *local_got_refcounts;
/* This is a global offset table entry for a local symbol. */
local_got_refcounts = elf_local_got_refcounts (abfd);
if (local_got_refcounts == NULL)
{
bfd_size_type size;
size = symtab_hdr->sh_info;
size *= (sizeof (bfd_signed_vma) + sizeof(char));
local_got_refcounts = ((bfd_signed_vma *)
bfd_zalloc (abfd, size));
if (local_got_refcounts == NULL)
return FALSE;
elf_local_got_refcounts (abfd) = local_got_refcounts;
_bfd_sparc_elf_local_got_tls_type (abfd)
= (char *) (local_got_refcounts + symtab_hdr->sh_info);
}
switch (r_type)
{
case R_SPARC_GOTDATA_OP_HIX22:
case R_SPARC_GOTDATA_OP_LOX10:
break;
default:
local_got_refcounts[r_symndx] += 1;
break;
}
old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
}
/* If a TLS symbol is accessed using IE at least once,
there is no point to use dynamic model for it. */
if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
&& (old_tls_type != GOT_TLS_GD
|| tls_type != GOT_TLS_IE))
{
if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
tls_type = old_tls_type;
else
{
(*_bfd_error_handler)
(_("%B: `%s' accessed both as normal and thread local symbol"),
abfd, h ? h->root.root.string : "<local>");
return FALSE;
}
}
if (old_tls_type != tls_type)
{
if (h != NULL)
_bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
else
_bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
}
}
if (htab->elf.sgot == NULL)
{
if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
return FALSE;
}
break;
case R_SPARC_TLS_GD_CALL:
case R_SPARC_TLS_LDM_CALL:
if (bfd_link_pic (info))
{
/* These are basically R_SPARC_TLS_WPLT30 relocs against
__tls_get_addr. */
struct bfd_link_hash_entry *bh = NULL;
if (! _bfd_generic_link_add_one_symbol (info, abfd,
"__tls_get_addr", 0,
bfd_und_section_ptr, 0,
NULL, FALSE, FALSE,
&bh))
return FALSE;
h = (struct elf_link_hash_entry *) bh;
}
else
break;
/* Fall through */
case R_SPARC_PLT32:
case R_SPARC_WPLT30:
case R_SPARC_HIPLT22:
case R_SPARC_LOPLT10:
case R_SPARC_PCPLT32:
case R_SPARC_PCPLT22:
case R_SPARC_PCPLT10:
case R_SPARC_PLT64:
/* This symbol requires a procedure linkage table entry. We
actually build the entry in adjust_dynamic_symbol,
because this might be a case of linking PIC code without
linking in any dynamic objects, in which case we don't
need to generate a procedure linkage table after all. */
if (h == NULL)
{
if (! ABI_64_P (abfd))
{
/* The Solaris native assembler will generate a WPLT30
reloc for a local symbol if you assemble a call from
one section to another when using -K pic. We treat
it as WDISP30. */
if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
goto r_sparc_plt32;
break;
}
/* PR 7027: We need similar behaviour for 64-bit binaries. */
else if (r_type == R_SPARC_WPLT30)
break;
/* It does not make sense to have a procedure linkage
table entry for a local symbol. */
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
h->needs_plt = 1;
{
int this_r_type;
this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
if (this_r_type == R_SPARC_PLT32
|| this_r_type == R_SPARC_PLT64)
goto r_sparc_plt32;
}
h->plt.refcount += 1;
break;
case R_SPARC_PC10:
case R_SPARC_PC22:
case R_SPARC_PC_HH22:
case R_SPARC_PC_HM10:
case R_SPARC_PC_LM22:
if (h != NULL)
h->non_got_ref = 1;
if (h != NULL
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
break;
/* Fall through. */
case R_SPARC_DISP8:
case R_SPARC_DISP16:
case R_SPARC_DISP32:
case R_SPARC_DISP64:
case R_SPARC_WDISP30:
case R_SPARC_WDISP22:
case R_SPARC_WDISP19:
case R_SPARC_WDISP16:
case R_SPARC_WDISP10:
case R_SPARC_8:
case R_SPARC_16:
case R_SPARC_32:
case R_SPARC_HI22:
case R_SPARC_22:
case R_SPARC_13:
case R_SPARC_LO10:
case R_SPARC_UA16:
case R_SPARC_UA32:
case R_SPARC_10:
case R_SPARC_11:
case R_SPARC_64:
case R_SPARC_OLO10:
case R_SPARC_HH22:
case R_SPARC_HM10:
case R_SPARC_LM22:
case R_SPARC_7:
case R_SPARC_5:
case R_SPARC_6:
case R_SPARC_HIX22:
case R_SPARC_LOX10:
case R_SPARC_H44:
case R_SPARC_M44:
case R_SPARC_L44:
case R_SPARC_H34:
case R_SPARC_UA64:
if (h != NULL)
h->non_got_ref = 1;
r_sparc_plt32:
if (h != NULL && !bfd_link_pic (info))
{
/* We may need a .plt entry if the function this reloc
refers to is in a shared lib. */
h->plt.refcount += 1;
}
/* If we are creating a shared library, and this is a reloc
against a global symbol, or a non PC relative reloc
against a local symbol, then we need to copy the reloc
into the shared library. However, if we are linking with
-Bsymbolic, we do not need to copy a reloc against a
global symbol which is defined in an object we are
including in the link (i.e., DEF_REGULAR is set). At
this point we have not seen all the input files, so it is
possible that DEF_REGULAR is not set now but will be set
later (it is never cleared). In case of a weak definition,
DEF_REGULAR may be cleared later by a strong definition in
a shared library. We account for that possibility below by
storing information in the relocs_copied field of the hash
table entry. A similar situation occurs when creating
shared libraries and symbol visibility changes render the
symbol local.
If on the other hand, we are creating an executable, we
may need to keep relocations for symbols satisfied by a
dynamic library if we manage to avoid copy relocs for the
symbol. */
if ((bfd_link_pic (info)
&& (sec->flags & SEC_ALLOC) != 0
&& (! _bfd_sparc_elf_howto_table[r_type].pc_relative
|| (h != NULL
&& (! SYMBOLIC_BIND (info, h)
|| h->root.type == bfd_link_hash_defweak
|| !h->def_regular))))
|| (!bfd_link_pic (info)
&& (sec->flags & SEC_ALLOC) != 0
&& h != NULL
&& (h->root.type == bfd_link_hash_defweak
|| !h->def_regular))
|| (!bfd_link_pic (info)
&& h != NULL
&& h->type == STT_GNU_IFUNC))
{
struct _bfd_sparc_elf_dyn_relocs *p;
struct _bfd_sparc_elf_dyn_relocs **head;
/* When creating a shared object, we must copy these
relocs into the output file. We create a reloc
section in dynobj and make room for the reloc. */
if (sreloc == NULL)
{
sreloc = _bfd_elf_make_dynamic_reloc_section
(sec, htab->elf.dynobj, htab->word_align_power,
abfd, /*rela?*/ TRUE);
if (sreloc == NULL)
return FALSE;
}
/* If this is a global symbol, we count the number of
relocations we need for this symbol. */
if (h != NULL)
head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
else
{
/* Track dynamic relocs needed for local syms too.
We really need local syms available to do this
easily. Oh well. */
asection *s;
void *vpp;
BFD_ASSERT (isym != NULL);
s = bfd_section_from_elf_index (abfd, isym->st_shndx);
if (s == NULL)
s = sec;
vpp = &elf_section_data (s)->local_dynrel;
head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
}
p = *head;
if (p == NULL || p->sec != sec)
{
bfd_size_type amt = sizeof *p;
p = ((struct _bfd_sparc_elf_dyn_relocs *)
bfd_alloc (htab->elf.dynobj, amt));
if (p == NULL)
return FALSE;
p->next = *head;
*head = p;
p->sec = sec;
p->count = 0;
p->pc_count = 0;
}
p->count += 1;
if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
p->pc_count += 1;
}
break;
case R_SPARC_GNU_VTINHERIT:
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
return FALSE;
break;
case R_SPARC_GNU_VTENTRY:
BFD_ASSERT (h != NULL);
if (h != NULL
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
return FALSE;
break;
case R_SPARC_REGISTER:
/* Nothing to do. */
break;
default:
break;
}
}
return TRUE;
}
asection *
_bfd_sparc_elf_gc_mark_hook (asection *sec,
struct bfd_link_info *info,
Elf_Internal_Rela *rel,
struct elf_link_hash_entry *h,
Elf_Internal_Sym *sym)
{
if (h != NULL)
switch (SPARC_ELF_R_TYPE (rel->r_info))
{
case R_SPARC_GNU_VTINHERIT:
case R_SPARC_GNU_VTENTRY:
return NULL;
}
/* FIXME: The test here, in check_relocs and in relocate_section
dealing with TLS optimization, ought to be !bfd_link_executable (info). */
if (bfd_link_pic (info))
{
switch (SPARC_ELF_R_TYPE (rel->r_info))
{
case R_SPARC_TLS_GD_CALL:
case R_SPARC_TLS_LDM_CALL:
/* This reloc implicitly references __tls_get_addr. We know
another reloc will reference the same symbol as the one
on this reloc, so the real symbol and section will be
gc marked when processing the other reloc. That lets
us handle __tls_get_addr here. */
h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
FALSE, FALSE, TRUE);
BFD_ASSERT (h != NULL);
h->mark = 1;
if (h->u.weakdef != NULL)
h->u.weakdef->mark = 1;
sym = NULL;
}
}
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
static Elf_Internal_Rela *
sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
Elf_Internal_Rela *relend,
bfd_vma offset)
{
while (rel < relend)
{
if (rel->r_offset == offset)
return rel;
rel++;
}
return NULL;
}
/* Update the got entry reference counts for the section being removed. */
bfd_boolean
_bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
asection *sec, const Elf_Internal_Rela *relocs)
{
struct _bfd_sparc_elf_link_hash_table *htab;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
bfd_signed_vma *local_got_refcounts;
const Elf_Internal_Rela *rel, *relend;
if (bfd_link_relocatable (info))
return TRUE;
BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0);
elf_section_data (sec)->local_dynrel = NULL;
htab = _bfd_sparc_elf_hash_table (info);
BFD_ASSERT (htab != NULL);
symtab_hdr = &elf_symtab_hdr (abfd);
sym_hashes = elf_sym_hashes (abfd);
local_got_refcounts = elf_local_got_refcounts (abfd);
relend = relocs + sec->reloc_count;
for (rel = relocs; rel < relend; rel++)
{
unsigned long r_symndx;
unsigned int r_type;
struct elf_link_hash_entry *h = NULL;
r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
if (r_symndx >= symtab_hdr->sh_info)
{
struct _bfd_sparc_elf_link_hash_entry *eh;
struct _bfd_sparc_elf_dyn_relocs **pp;
struct _bfd_sparc_elf_dyn_relocs *p;
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
if (p->sec == sec)
{
/* Everything must go for SEC. */
*pp = p->next;
break;
}
}
r_type = SPARC_ELF_R_TYPE (rel->r_info);
r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
switch (r_type)
{
case R_SPARC_TLS_LDM_HI22:
case R_SPARC_TLS_LDM_LO10:
if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0)
_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
break;
case R_SPARC_TLS_GD_HI22:
case R_SPARC_TLS_GD_LO10:
case R_SPARC_TLS_IE_HI22:
case R_SPARC_TLS_IE_LO10:
case R_SPARC_GOT10:
case R_SPARC_GOT13:
case R_SPARC_GOT22:
case R_SPARC_GOTDATA_HIX22:
case R_SPARC_GOTDATA_LOX10:
case R_SPARC_GOTDATA_OP_HIX22:
case R_SPARC_GOTDATA_OP_LOX10:
if (h != NULL)
{
if (h->got.refcount > 0)
h->got.refcount--;
}
else
{
switch (r_type)
{
case R_SPARC_GOTDATA_OP_HIX22:
case R_SPARC_GOTDATA_OP_LOX10:
break;
default:
if (local_got_refcounts[r_symndx] > 0)
local_got_refcounts[r_symndx]--;
break;
}
}
break;
case R_SPARC_PC10:
case R_SPARC_PC22:
case R_SPARC_PC_HH22:
case R_SPARC_PC_HM10:
case R_SPARC_PC_LM22:
if (h != NULL
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
break;
/* Fall through. */
case R_SPARC_DISP8:
case R_SPARC_DISP16:
case R_SPARC_DISP32:
case R_SPARC_DISP64:
case R_SPARC_WDISP30:
case R_SPARC_WDISP22:
case R_SPARC_WDISP19:
case R_SPARC_WDISP16:
case R_SPARC_WDISP10:
case R_SPARC_8:
case R_SPARC_16:
case R_SPARC_32:
case R_SPARC_HI22:
case R_SPARC_22:
case R_SPARC_13:
case R_SPARC_LO10:
case R_SPARC_UA16:
case R_SPARC_UA32:
case R_SPARC_PLT32:
case R_SPARC_10:
case R_SPARC_11:
case R_SPARC_64:
case R_SPARC_OLO10:
case R_SPARC_HH22:
case R_SPARC_HM10:
case R_SPARC_LM22:
case R_SPARC_7:
case R_SPARC_5:
case R_SPARC_6:
case R_SPARC_HIX22:
case R_SPARC_LOX10:
case R_SPARC_H44:
case R_SPARC_M44:
case R_SPARC_L44:
case R_SPARC_H34:
case R_SPARC_UA64:
if (bfd_link_pic (info))
break;
/* Fall through. */
case R_SPARC_WPLT30:
if (h != NULL)
{
if (h->plt.refcount > 0)
h->plt.refcount--;
}
break;
default:
break;
}
}
return TRUE;
}
/* Adjust a symbol defined by a dynamic object and referenced by a
regular object. The current definition is in some section of the
dynamic object, but we're not including those sections. We have to
change the definition to something the rest of the link can
understand. */
bfd_boolean
_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
struct elf_link_hash_entry *h)
{
struct _bfd_sparc_elf_link_hash_table *htab;
struct _bfd_sparc_elf_link_hash_entry * eh;
struct _bfd_sparc_elf_dyn_relocs *p;
asection *s;
htab = _bfd_sparc_elf_hash_table (info);
BFD_ASSERT (htab != NULL);
/* Make sure we know what is going on here. */
BFD_ASSERT (htab->elf.dynobj != NULL
&& (h->needs_plt
|| h->type == STT_GNU_IFUNC
|| h->u.weakdef != NULL
|| (h->def_dynamic
&& h->ref_regular
&& !h->def_regular)));
/* If this is a function, put it in the procedure linkage table. We
will fill in the contents of the procedure linkage table later
(although we could actually do it here). The STT_NOTYPE
condition is a hack specifically for the Oracle libraries
delivered for Solaris; for some inexplicable reason, they define
some of their functions as STT_NOTYPE when they really should be
STT_FUNC. */
if (h->type == STT_FUNC
|| h->type == STT_GNU_IFUNC
|| h->needs_plt
|| (h->type == STT_NOTYPE
&& (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
&& (h->root.u.def.section->flags & SEC_CODE) != 0))
{
if (h->plt.refcount <= 0
|| (h->type != STT_GNU_IFUNC
&& (SYMBOL_CALLS_LOCAL (info, h)
|| (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
&& h->root.type == bfd_link_hash_undefweak))))
{
/* This case can occur if we saw a WPLT30 reloc in an input
file, but the symbol was never referred to by a dynamic
object, or if all references were garbage collected. In
such a case, we don't actually need to build a procedure
linkage table, and we can just do a WDISP30 reloc instead. */
h->plt.offset = (bfd_vma) -1;
h->needs_plt = 0;
}
return TRUE;
}
else
h->plt.offset = (bfd_vma) -1;
/* If this is a weak symbol, and there is a real definition, the
processor independent code will have arranged for us to see the
real definition first, and we can just use the same value. */
if (h->u.weakdef != NULL)
{
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
h->root.u.def.section = h->u.weakdef->root.u.def.section;
h->root.u.def.value = h->u.weakdef->root.u.def.value;
return TRUE;
}
/* This is a reference to a symbol defined by a dynamic object which
is not a function. */
/* If we are creating a shared library, we must presume that the
only references to the symbol are via the global offset table.
For such cases we need not do anything here; the relocations will
be handled correctly by relocate_section. */
if (bfd_link_pic (info))
return TRUE;
/* If there are no references to this symbol that do not use the
GOT, we don't need to generate a copy reloc. */
if (!h->non_got_ref)
return TRUE;
/* If -z nocopyreloc was given, we won't generate them either. */
if (info->nocopyreloc)
{
h->non_got_ref = 0;
return TRUE;
}
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
s = p->sec->output_section;
if (s != NULL && (s->flags & SEC_READONLY) != 0)
break;
}
/* If we didn't find any dynamic relocs in read-only sections, then
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
if (p == NULL)
{
h->non_got_ref = 0;
return TRUE;
}
/* We must allocate the symbol in our .dynbss section, which will
become part of the .bss section of the executable. There will be
an entry for this symbol in the .dynsym section. The dynamic
object will contain position independent code, so all references
from the dynamic object to this symbol will go through the global
offset table. The dynamic linker will use the .dynsym entry to
determine the address it must put in the global offset table, so
both the dynamic object and the regular object will refer to the
same memory location for the variable. */
/* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
to copy the initial value out of the dynamic object and into the
runtime process image. We need to remember the offset into the
.rel.bss section we are going to use. */
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
{
htab->srelbss->size += SPARC_ELF_RELA_BYTES (htab);
h->needs_copy = 1;
}
s = htab->sdynbss;
return _bfd_elf_adjust_dynamic_copy (info, h, s);
}
/* Allocate space in .plt, .got and associated reloc sections for
dynamic relocs. */
static bfd_boolean
allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
{
struct bfd_link_info *info;
struct _bfd_sparc_elf_link_hash_table *htab;
struct _bfd_sparc_elf_link_hash_entry *eh;
struct _bfd_sparc_elf_dyn_relocs *p;
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
info = (struct bfd_link_info *) inf;
htab = _bfd_sparc_elf_hash_table (info);
BFD_ASSERT (htab != NULL);
if ((htab->elf.dynamic_sections_created
&& h->plt.refcount > 0)
|| (h->type == STT_GNU_IFUNC
&& h->def_regular
&& h->ref_regular))
{
/* Make sure this symbol is output as a dynamic symbol.
Undefined weak syms won't yet be marked as dynamic. */
if (h->dynindx == -1
&& !h->forced_local)
{
if (! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
|| (h->type == STT_GNU_IFUNC
&& h->def_regular))
{
asection *s = htab->elf.splt;
if (s == NULL)
s = htab->elf.iplt;
/* Allocate room for the header. */
if (s->size == 0)
{
s->size = htab->plt_header_size;
/* Allocate space for the .rela.plt.unloaded relocations. */
if (htab->is_vxworks && !bfd_link_pic (info))
htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
}
/* The procedure linkage table size is bounded by the magnitude
of the offset we can describe in the entry. */
if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
(((bfd_vma)1 << 31) << 1) : 0x400000))
{
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
if (SPARC_ELF_WORD_BYTES(htab) == 8
&& s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
{
bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
h->plt.offset = (s->size - (off * 8));
}
else
h->plt.offset = s->size;
/* If this symbol is not defined in a regular file, and we are
not generating a shared library, then set the symbol to this
location in the .plt. This is required to make function
pointers compare as equal between the normal executable and
the shared library. */
if (! bfd_link_pic (info)
&& !h->def_regular)
{
h->root.u.def.section = s;
h->root.u.def.value = h->plt.offset;
}
/* Make room for this entry. */
s->size += htab->plt_entry_size;
/* We also need to make an entry in the .rela.plt section. */
if (s == htab->elf.splt)
htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
else
htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
if (htab->is_vxworks)
{
/* Allocate space for the .got.plt entry. */
htab->elf.sgotplt->size += 4;
/* ...and for the .rela.plt.unloaded relocations. */
if (!bfd_link_pic (info))
htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
}
}
else
{
h->plt.offset = (bfd_vma) -1;
h->needs_plt = 0;
}
}
else
{
h->plt.offset = (bfd_vma) -1;
h->needs_plt = 0;
}
/* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
if (h->got.refcount > 0
&& !bfd_link_pic (info)
&& h->dynindx == -1
&& _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
h->got.offset = (bfd_vma) -1;
else if (h->got.refcount > 0)
{
asection *s;
bfd_boolean dyn;
int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
/* Make sure this symbol is output as a dynamic symbol.
Undefined weak syms won't yet be marked as dynamic. */
if (h->dynindx == -1
&& !h->forced_local)
{
if (! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
s = htab->elf.sgot;
h->got.offset = s->size;
s->size += SPARC_ELF_WORD_BYTES (htab);
/* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
if (tls_type == GOT_TLS_GD)
s->size += SPARC_ELF_WORD_BYTES (htab);
dyn = htab->elf.dynamic_sections_created;
/* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
global. */
if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
|| tls_type == GOT_TLS_IE
|| h->type == STT_GNU_IFUNC)
htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
else if (tls_type == GOT_TLS_GD)
htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
bfd_link_pic (info),
h))
htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
}
else
h->got.offset = (bfd_vma) -1;
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
if (eh->dyn_relocs == NULL)
return TRUE;
/* In the shared -Bsymbolic case, discard space allocated for
dynamic pc-relative relocs against symbols which turn out to be
defined in regular objects. For the normal shared case, discard
space for pc-relative relocs that have become local due to symbol
visibility changes. */
if (bfd_link_pic (info))
{
if (SYMBOL_CALLS_LOCAL (info, h))
{
struct _bfd_sparc_elf_dyn_relocs **pp;
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
{
p->count -= p->pc_count;
p->pc_count = 0;
if (p->count == 0)
*pp = p->next;
else
pp = &p->next;
}
}
if (htab->is_vxworks)
{
struct _bfd_sparc_elf_dyn_relocs **pp;
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
{
if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
*pp = p->next;
else
pp = &p->next;
}
}
/* Also discard relocs on undefined weak syms with non-default
visibility. */
if (eh->dyn_relocs != NULL
&& h->root.type == bfd_link_hash_undefweak)
{
if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
eh->dyn_relocs = NULL;
/* Make sure undefined weak symbols are output as a dynamic
symbol in PIEs. */
else if (h->dynindx == -1
&& !h->forced_local)
{
if (! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
}
}
else
{
/* For the non-shared case, discard space for relocs against
symbols which turn out to need copy relocs or are not
dynamic. */
if (!h->non_got_ref
&& ((h->def_dynamic
&& !h->def_regular)
|| (htab->elf.dynamic_sections_created
&& (h->root.type == bfd_link_hash_undefweak
|| h->root.type == bfd_link_hash_undefined))))
{
/* Make sure this symbol is output as a dynamic symbol.
Undefined weak syms won't yet be marked as dynamic. */
if (h->dynindx == -1
&& !h->forced_local)
{
if (! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
/* If that succeeded, we know we'll be keeping all the
relocs. */
if (h->dynindx != -1)
goto keep;
}
eh->dyn_relocs = NULL;
keep: ;
}
/* Finally, allocate space. */
for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
asection *sreloc = elf_section_data (p->sec)->sreloc;
sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
}
return TRUE;
}
/* Allocate space in .plt, .got and associated reloc sections for
local dynamic relocs. */
static bfd_boolean
allocate_local_dynrelocs (void **slot, void *inf)
{
struct elf_link_hash_entry *h
= (struct elf_link_hash_entry *) *slot;
if (h->type != STT_GNU_IFUNC
|| !h->def_regular
|| !h->ref_regular
|| !h->forced_local
|| h->root.type != bfd_link_hash_defined)
abort ();
return allocate_dynrelocs (h, inf);
}
/* Find any dynamic relocs that apply to read-only sections. */
static bfd_boolean
readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
{
struct _bfd_sparc_elf_link_hash_entry *eh;
struct _bfd_sparc_elf_dyn_relocs *p;
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
asection *s = p->sec->output_section;
if (s != NULL && (s->flags & SEC_READONLY) != 0)
{
struct bfd_link_info *info = (struct bfd_link_info *) inf;
info->flags |= DF_TEXTREL;
/* Not an error, just cut short the traversal. */
return FALSE;
}
}
return TRUE;
}
/* Return true if the dynamic symbol for a given section should be
omitted when creating a shared library. */
bfd_boolean
_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
struct bfd_link_info *info,
asection *p)
{
/* We keep the .got section symbol so that explicit relocations
against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
can be turned into relocations against the .got symbol. */
if (strcmp (p->name, ".got") == 0)
return FALSE;
return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
}
/* Set the sizes of the dynamic sections. */
bfd_boolean
_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
struct bfd_link_info *info)
{
struct _bfd_sparc_elf_link_hash_table *htab;
bfd *dynobj;
asection *s;
bfd *ibfd;
htab = _bfd_sparc_elf_hash_table (info);
BFD_ASSERT (htab != NULL);
dynobj = htab->elf.dynobj;
BFD_ASSERT (dynobj != NULL);
if (elf_hash_table (info)->dynamic_sections_created)
{
/* Set the contents of the .interp section to the interpreter. */
if (bfd_link_executable (info) && !info->nointerp)
{
s = bfd_get_linker_section (dynobj, ".interp");
BFD_ASSERT (s != NULL);
s->size = htab->dynamic_interpreter_size;
s->contents = (unsigned char *) htab->dynamic_interpreter;
}
}
/* Set up .got offsets for local syms, and space for local dynamic
relocs. */
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
{
bfd_signed_vma *local_got;
bfd_signed_vma *end_local_got;
char *local_tls_type;
bfd_size_type locsymcount;
Elf_Internal_Shdr *symtab_hdr;
asection *srel;
if (! is_sparc_elf (ibfd))
continue;
for (s = ibfd->sections; s != NULL; s = s->next)
{
struct _bfd_sparc_elf_dyn_relocs *p;
for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
{
if (!bfd_is_abs_section (p->sec)
&& bfd_is_abs_section (p->sec->output_section))
{
/* Input section has been discarded, either because
it is a copy of a linkonce section or due to
linker script /DISCARD/, so we'll be discarding
the relocs too. */
}
else if (htab->is_vxworks
&& strcmp (p->sec->output_section->name,
".tls_vars") == 0)
{
/* Relocations in vxworks .tls_vars sections are
handled specially by the loader. */
}
else if (p->count != 0)
{
srel = elf_section_data (p->sec)->sreloc;
if (!htab->elf.dynamic_sections_created)
srel = htab->elf.irelplt;
srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
if ((p->sec->output_section->flags & SEC_READONLY) != 0)
info->flags |= DF_TEXTREL;
}
}
}
local_got = elf_local_got_refcounts (ibfd);
if (!local_got)
continue;
symtab_hdr = &elf_symtab_hdr (ibfd);
locsymcount = symtab_hdr->sh_info;
end_local_got = local_got + locsymcount;
local_tls_type = _bfd_sparc_