diff options
Diffstat (limited to 'binutils-2.25/bfd/elfxx-sparc.c')
| -rw-r--r-- | binutils-2.25/bfd/elfxx-sparc.c | 4919 |
1 files changed, 4919 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/elfxx-sparc.c b/binutils-2.25/bfd/elfxx-sparc.c new file mode 100644 index 00000000..94da3600 --- /dev/null +++ b/binutils-2.25/bfd/elfxx-sparc.c @@ -0,0 +1,4919 @@ +/* SPARC-specific support for ELF + Copyright 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 + 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, 0,0, 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; +} + +/* 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) + { + free (ret); + return NULL; + } + + return &ret->elf.root; +} + +/* Destroy a SPARC ELF linker hash table. */ + +void +_bfd_sparc_elf_link_hash_table_free (struct bfd_link_hash_table *hash) +{ + struct _bfd_sparc_elf_link_hash_table *htab + = (struct _bfd_sparc_elf_link_hash_table *) 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_generic_link_hash_table_free (hash); +} + +/* 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 (!info->shared) + 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 (info->shared) + { + 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 + || (!info->shared && !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 (info->shared) + 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 (info->relocatable) + 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 (info->shared) + goto r_sparc_plt32; + break; + + case R_SPARC_TLS_IE_HI22: + case R_SPARC_TLS_IE_LO10: + if (info->shared) + 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 (info->shared) + { + /* 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 && !info->shared) + { + /* 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 ((info->shared + && (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)))) + || (!info->shared + && (sec->flags & SEC_ALLOC) != 0 + && h != NULL + && (h->root.type == bfd_link_hash_defweak + || !h->def_regular)) + || (!info->shared + && 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 !info->executable. */ + if (info->shared) + { + 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 (info->relocatable) + 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 (info->shared) + 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 (info->shared) + 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 (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, info->shared, 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 && !info->shared) + 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 (! info->shared + && !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 (!info->shared) + 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 + && !info->shared + && 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, info->shared, 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 (info->shared) + { + 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 (info->executable) + { + 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_elf_local_got_tls_type (ibfd); + s = htab->elf.sgot; + srel = htab->elf.srelgot; + for (; local_got < end_local_got; ++local_got, ++local_tls_type) + { + if (*local_got > 0) + { + *local_got = s->size; + s->size += SPARC_ELF_WORD_BYTES (htab); + if (*local_tls_type == GOT_TLS_GD) + s->size += SPARC_ELF_WORD_BYTES (htab); + if (info->shared + || *local_tls_type == GOT_TLS_GD + || *local_tls_type == GOT_TLS_IE) + srel->size += SPARC_ELF_RELA_BYTES (htab); + } + else + *local_got = (bfd_vma) -1; + } + } + + if (htab->tls_ldm_got.refcount > 0) + { + /* Allocate 2 got entries and 1 dynamic reloc for + R_SPARC_TLS_LDM_{HI22,LO10} relocs. */ + htab->tls_ldm_got.offset = htab->elf.sgot->size; + htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab)); + htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab); + } + else + htab->tls_ldm_got.offset = -1; + + /* Allocate global sym .plt and .got entries, and space for global + sym dynamic relocs. */ + elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); + + /* Allocate .plt and .got entries, and space for local symbols. */ + htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info); + + if (! ABI_64_P (output_bfd) + && !htab->is_vxworks + && elf_hash_table (info)->dynamic_sections_created) + { + /* Make space for the trailing nop in .plt. */ + if (htab->elf.splt->size > 0) + htab->elf.splt->size += 1 * SPARC_INSN_BYTES; + + /* If the .got section is more than 0x1000 bytes, we add + 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 + bit relocations have a greater chance of working. + + FIXME: Make this optimization work for 64-bit too. */ + if (htab->elf.sgot->size >= 0x1000 + && elf_hash_table (info)->hgot->root.u.def.value == 0) + elf_hash_table (info)->hgot->root.u.def.value = 0x1000; + } + + /* The check_relocs and adjust_dynamic_symbol entry points have + determined the sizes of the various dynamic sections. Allocate + memory for them. */ + for (s = dynobj->sections; s != NULL; s = s->next) + { + if ((s->flags & SEC_LINKER_CREATED) == 0) + continue; + + if (s == htab->elf.splt + || s == htab->elf.sgot + || s == htab->sdynbss + || s == htab->elf.iplt + || s == htab->elf.sgotplt) + { + /* Strip this section if we don't need it; see the + comment below. */ + } + else if (CONST_STRNEQ (s->name, ".rela")) + { + if (s->size != 0) + { + /* We use the reloc_count field as a counter if we need + to copy relocs into the output file. */ + s->reloc_count = 0; + } + } + else + { + /* It's not one of our sections. */ + continue; + } + + if (s->size == 0) + { + /* If we don't need this section, strip it from the + output file. This is mostly to handle .rela.bss and + .rela.plt. We must create both sections in + create_dynamic_sections, because they must be created + before the linker maps input sections to output + sections. The linker does that before + adjust_dynamic_symbol is called, and it is that + function which decides whether anything needs to go + into these sections. */ + s->flags |= SEC_EXCLUDE; + continue; + } + + if ((s->flags & SEC_HAS_CONTENTS) == 0) + continue; + + /* Allocate memory for the section contents. Zero the memory + for the benefit of .rela.plt, which has 4 unused entries + at the beginning, and we don't want garbage. */ + s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); + if (s->contents == NULL) + return FALSE; + } + + if (elf_hash_table (info)->dynamic_sections_created) + { + /* Add some entries to the .dynamic section. We fill in the + values later, in _bfd_sparc_elf_finish_dynamic_sections, but we + must add the entries now so that we get the correct size for + the .dynamic section. The DT_DEBUG entry is filled in by the + dynamic linker and used by the debugger. */ +#define add_dynamic_entry(TAG, VAL) \ + _bfd_elf_add_dynamic_entry (info, TAG, VAL) + + if (info->executable) + { + if (!add_dynamic_entry (DT_DEBUG, 0)) + return FALSE; + } + + if (htab->elf.srelplt->size != 0) + { + if (!add_dynamic_entry (DT_PLTGOT, 0) + || !add_dynamic_entry (DT_PLTRELSZ, 0) + || !add_dynamic_entry (DT_PLTREL, DT_RELA) + || !add_dynamic_entry (DT_JMPREL, 0)) + return FALSE; + } + + if (!add_dynamic_entry (DT_RELA, 0) + || !add_dynamic_entry (DT_RELASZ, 0) + || !add_dynamic_entry (DT_RELAENT, + SPARC_ELF_RELA_BYTES (htab))) + return FALSE; + + /* If any dynamic relocs apply to a read-only section, + then we need a DT_TEXTREL entry. */ + if ((info->flags & DF_TEXTREL) == 0) + elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); + + if (info->flags & DF_TEXTREL) + { + if (!add_dynamic_entry (DT_TEXTREL, 0)) + return FALSE; + } + + if (ABI_64_P (output_bfd)) + { + int reg; + struct _bfd_sparc_elf_app_reg * app_regs; + struct elf_strtab_hash *dynstr; + struct elf_link_hash_table *eht = elf_hash_table (info); + + /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER + entries if needed. */ + app_regs = _bfd_sparc_elf_hash_table (info)->app_regs; + dynstr = eht->dynstr; + + for (reg = 0; reg < 4; reg++) + if (app_regs [reg].name != NULL) + { + struct elf_link_local_dynamic_entry *entry, *e; + + if (!add_dynamic_entry (DT_SPARC_REGISTER, 0)) + return FALSE; + + entry = (struct elf_link_local_dynamic_entry *) + bfd_hash_allocate (&info->hash->table, sizeof (*entry)); + if (entry == NULL) + return FALSE; + + /* We cheat here a little bit: the symbol will not be local, so we + put it at the end of the dynlocal linked list. We will fix it + later on, as we have to fix other fields anyway. */ + entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4; + entry->isym.st_size = 0; + if (*app_regs [reg].name != '\0') + entry->isym.st_name + = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE); + else + entry->isym.st_name = 0; + entry->isym.st_other = 0; + entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind, + STT_REGISTER); + entry->isym.st_shndx = app_regs [reg].shndx; + entry->isym.st_target_internal = 0; + entry->next = NULL; + entry->input_bfd = output_bfd; + entry->input_indx = -1; + + if (eht->dynlocal == NULL) + eht->dynlocal = entry; + else + { + for (e = eht->dynlocal; e->next; e = e->next) + ; + e->next = entry; + } + eht->dynsymcount++; + } + } + if (htab->is_vxworks + && !elf_vxworks_add_dynamic_entries (output_bfd, info)) + return FALSE; + } +#undef add_dynamic_entry + + return TRUE; +} + +bfd_boolean +_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec) +{ + if (!sec->used_by_bfd) + { + struct _bfd_sparc_elf_section_data *sdata; + bfd_size_type amt = sizeof (*sdata); + + sdata = bfd_zalloc (abfd, amt); + if (sdata == NULL) + return FALSE; + sec->used_by_bfd = sdata; + } + + return _bfd_elf_new_section_hook (abfd, sec); +} + +bfd_boolean +_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED, + struct bfd_section *section, + struct bfd_link_info *link_info ATTRIBUTE_UNUSED, + bfd_boolean *again) +{ + if (link_info->relocatable) + (*link_info->callbacks->einfo) + (_("%P%F: --relax and -r may not be used together\n")); + + *again = FALSE; + sec_do_relax (section) = 1; + return TRUE; +} + +/* Return the base VMA address which should be subtracted from real addresses + when resolving @dtpoff relocation. + This is PT_TLS segment p_vaddr. */ + +static bfd_vma +dtpoff_base (struct bfd_link_info *info) +{ + /* If tls_sec is NULL, we should have signalled an error already. */ + if (elf_hash_table (info)->tls_sec == NULL) + return 0; + return elf_hash_table (info)->tls_sec->vma; +} + +/* Return the relocation value for @tpoff relocation + if STT_TLS virtual address is ADDRESS. */ + +static bfd_vma +tpoff (struct bfd_link_info *info, bfd_vma address) +{ + struct elf_link_hash_table *htab = elf_hash_table (info); + const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd); + bfd_vma static_tls_size; + + /* If tls_sec is NULL, we should have signalled an error already. */ + if (htab->tls_sec == NULL) + return 0; + + /* Consider special static TLS alignment requirements. */ + static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment); + return address - static_tls_size - htab->tls_sec->vma; +} + +/* Return the relocation value for a %gdop relocation. */ + +static bfd_vma +gdopoff (struct bfd_link_info *info, bfd_vma address) +{ + struct elf_link_hash_table *htab = elf_hash_table (info); + bfd_vma got_base; + + got_base = (htab->hgot->root.u.def.value + + htab->hgot->root.u.def.section->output_offset + + htab->hgot->root.u.def.section->output_section->vma); + + return address - got_base; +} + +/* Relocate a SPARC ELF section. */ + +bfd_boolean +_bfd_sparc_elf_relocate_section (bfd *output_bfd, + struct bfd_link_info *info, + bfd *input_bfd, + asection *input_section, + bfd_byte *contents, + Elf_Internal_Rela *relocs, + Elf_Internal_Sym *local_syms, + asection **local_sections) +{ + struct _bfd_sparc_elf_link_hash_table *htab; + Elf_Internal_Shdr *symtab_hdr; + struct elf_link_hash_entry **sym_hashes; + bfd_vma *local_got_offsets; + bfd_vma got_base; + asection *sreloc; + Elf_Internal_Rela *rel; + Elf_Internal_Rela *relend; + int num_relocs; + bfd_boolean is_vxworks_tls; + + htab = _bfd_sparc_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + symtab_hdr = &elf_symtab_hdr (input_bfd); + sym_hashes = elf_sym_hashes (input_bfd); + local_got_offsets = elf_local_got_offsets (input_bfd); + + if (elf_hash_table (info)->hgot == NULL) + got_base = 0; + else + got_base = elf_hash_table (info)->hgot->root.u.def.value; + + sreloc = elf_section_data (input_section)->sreloc; + /* We have to handle relocations in vxworks .tls_vars sections + specially, because the dynamic loader is 'weird'. */ + is_vxworks_tls = (htab->is_vxworks && info->shared + && !strcmp (input_section->output_section->name, + ".tls_vars")); + + rel = relocs; + if (ABI_64_P (output_bfd)) + num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section)); + else + num_relocs = input_section->reloc_count; + relend = relocs + num_relocs; + for (; rel < relend; rel++) + { + int r_type, tls_type; + reloc_howto_type *howto; + unsigned long r_symndx; + struct elf_link_hash_entry *h; + Elf_Internal_Sym *sym; + asection *sec; + bfd_vma relocation, off; + bfd_reloc_status_type r; + bfd_boolean is_plt = FALSE; + bfd_boolean unresolved_reloc; + + r_type = SPARC_ELF_R_TYPE (rel->r_info); + if (r_type == R_SPARC_GNU_VTINHERIT + || r_type == R_SPARC_GNU_VTENTRY) + continue; + + if (r_type < 0 || r_type >= (int) R_SPARC_max_std) + { + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + howto = _bfd_sparc_elf_howto_table + r_type; + + r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); + h = NULL; + sym = NULL; + sec = NULL; + unresolved_reloc = FALSE; + if (r_symndx < symtab_hdr->sh_info) + { + sym = local_syms + r_symndx; + sec = local_sections[r_symndx]; + relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); + + if (!info->relocatable + && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) + { + /* Relocate against local STT_GNU_IFUNC symbol. */ + h = elf_sparc_get_local_sym_hash (htab, input_bfd, + rel, FALSE); + if (h == NULL) + abort (); + + /* Set STT_GNU_IFUNC symbol value. */ + h->root.u.def.value = sym->st_value; + h->root.u.def.section = sec; + } + } + else + { + bfd_boolean warned; + + RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, + r_symndx, symtab_hdr, sym_hashes, + h, sec, relocation, + unresolved_reloc, warned); + if (warned) + { + /* To avoid generating warning messages about truncated + relocations, set the relocation's address to be the same as + the start of this section. */ + if (input_section->output_section != NULL) + relocation = input_section->output_section->vma; + else + relocation = 0; + } + } + + if (sec != NULL && discarded_section (sec)) + RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, + rel, 1, relend, howto, 0, contents); + + if (info->relocatable) + continue; + + if (h != NULL + && h->type == STT_GNU_IFUNC + && h->def_regular) + { + asection *plt_sec; + const char *name; + + if ((input_section->flags & SEC_ALLOC) == 0 + || h->plt.offset == (bfd_vma) -1) + abort (); + + plt_sec = htab->elf.splt; + if (! plt_sec) + plt_sec =htab->elf.iplt; + + switch (r_type) + { + case R_SPARC_GOTDATA_OP: + continue; + + case R_SPARC_GOTDATA_OP_HIX22: + case R_SPARC_GOTDATA_OP_LOX10: + r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 + ? R_SPARC_GOT22 + : R_SPARC_GOT10); + howto = _bfd_sparc_elf_howto_table + r_type; + /* Fall through. */ + + case R_SPARC_GOT10: + case R_SPARC_GOT13: + case R_SPARC_GOT22: + if (htab->elf.sgot == NULL) + abort (); + off = h->got.offset; + if (off == (bfd_vma) -1) + abort(); + relocation = htab->elf.sgot->output_offset + off - got_base; + goto do_relocation; + + case R_SPARC_WPLT30: + case R_SPARC_WDISP30: + relocation = (plt_sec->output_section->vma + + plt_sec->output_offset + h->plt.offset); + goto do_relocation; + + case R_SPARC_32: + case R_SPARC_64: + if (info->shared && h->non_got_ref) + { + Elf_Internal_Rela outrel; + bfd_vma offset; + + offset = _bfd_elf_section_offset (output_bfd, info, + input_section, + rel->r_offset); + if (offset == (bfd_vma) -1 + || offset == (bfd_vma) -2) + abort(); + + outrel.r_offset = (input_section->output_section->vma + + input_section->output_offset + + offset); + + if (h->dynindx == -1 + || h->forced_local + || info->executable) + { + outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, + 0, R_SPARC_IRELATIVE); + outrel.r_addend = relocation + rel->r_addend; + } + else + { + if (h->dynindx == -1) + abort(); + outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type); + outrel.r_addend = rel->r_addend; + } + + sparc_elf_append_rela (output_bfd, sreloc, &outrel); + continue; + } + + relocation = (plt_sec->output_section->vma + + plt_sec->output_offset + h->plt.offset); + goto do_relocation; + + case R_SPARC_HI22: + case R_SPARC_LO10: + /* We should only see such relocs in static links. */ + if (info->shared) + abort(); + relocation = (plt_sec->output_section->vma + + plt_sec->output_offset + h->plt.offset); + goto do_relocation; + + default: + if (h->root.root.string) + name = h->root.root.string; + else + name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, + NULL); + (*_bfd_error_handler) + (_("%B: relocation %s against STT_GNU_IFUNC " + "symbol `%s' isn't handled by %s"), input_bfd, + _bfd_sparc_elf_howto_table[r_type].name, + name, __FUNCTION__); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + } + + switch (r_type) + { + case R_SPARC_GOTDATA_OP_HIX22: + case R_SPARC_GOTDATA_OP_LOX10: + if (SYMBOL_REFERENCES_LOCAL (info, h)) + r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 + ? R_SPARC_GOTDATA_HIX22 + : R_SPARC_GOTDATA_LOX10); + else + r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 + ? R_SPARC_GOT22 + : R_SPARC_GOT10); + howto = _bfd_sparc_elf_howto_table + r_type; + break; + + case R_SPARC_GOTDATA_OP: + if (SYMBOL_REFERENCES_LOCAL (info, h)) + { + bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); + + /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */ + relocation = 0x80000000 | (insn & 0x3e07c01f); + bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); + } + continue; + } + + switch (r_type) + { + case R_SPARC_GOTDATA_HIX22: + case R_SPARC_GOTDATA_LOX10: + relocation = gdopoff (info, relocation); + break; + + case R_SPARC_GOT10: + case R_SPARC_GOT13: + case R_SPARC_GOT22: + /* Relocation is to the entry for this symbol in the global + offset table. */ + if (htab->elf.sgot == NULL) + abort (); + + if (h != NULL) + { + bfd_boolean dyn; + + off = h->got.offset; + BFD_ASSERT (off != (bfd_vma) -1); + dyn = elf_hash_table (info)->dynamic_sections_created; + + if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) + || (info->shared + && SYMBOL_REFERENCES_LOCAL (info, h))) + { + /* This is actually a static link, or it is a + -Bsymbolic link and the symbol is defined + locally, or the symbol was forced to be local + because of a version file. We must initialize + this entry in the global offset table. Since the + offset must always be a multiple of 8 for 64-bit + and 4 for 32-bit, we use the least significant bit + to record whether we have initialized it already. + + When doing a dynamic link, we create a .rela.got + relocation entry to initialize the value. This + is done in the finish_dynamic_symbol routine. */ + if ((off & 1) != 0) + off &= ~1; + else + { + SPARC_ELF_PUT_WORD (htab, output_bfd, relocation, + htab->elf.sgot->contents + off); + h->got.offset |= 1; + } + } + else + unresolved_reloc = FALSE; + } + else + { + BFD_ASSERT (local_got_offsets != NULL + && local_got_offsets[r_symndx] != (bfd_vma) -1); + + off = local_got_offsets[r_symndx]; + + /* The offset must always be a multiple of 8 on 64-bit and + 4 on 32-bit. We use the least significant bit to record + whether we have already processed this entry. */ + if ((off & 1) != 0) + off &= ~1; + else + { + + if (info->shared) + { + asection *s; + Elf_Internal_Rela outrel; + + /* We need to generate a R_SPARC_RELATIVE reloc + for the dynamic linker. */ + s = htab->elf.srelgot; + BFD_ASSERT (s != NULL); + + outrel.r_offset = (htab->elf.sgot->output_section->vma + + htab->elf.sgot->output_offset + + off); + outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, + 0, R_SPARC_RELATIVE); + outrel.r_addend = relocation; + relocation = 0; + sparc_elf_append_rela (output_bfd, s, &outrel); + } + + SPARC_ELF_PUT_WORD (htab, output_bfd, relocation, + htab->elf.sgot->contents + off); + local_got_offsets[r_symndx] |= 1; + } + } + relocation = htab->elf.sgot->output_offset + off - got_base; + break; + + case R_SPARC_PLT32: + case R_SPARC_PLT64: + if (h == NULL || h->plt.offset == (bfd_vma) -1) + { + r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64; + goto r_sparc_plt32; + } + /* Fall through. */ + + case R_SPARC_WPLT30: + case R_SPARC_HIPLT22: + case R_SPARC_LOPLT10: + case R_SPARC_PCPLT32: + case R_SPARC_PCPLT22: + case R_SPARC_PCPLT10: + r_sparc_wplt30: + /* Relocation is to the entry for this symbol in the + procedure linkage table. */ + + if (! ABI_64_P (output_bfd)) + { + /* 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 (h == NULL) + break; + } + /* PR 7027: We need similar behaviour for 64-bit binaries. */ + else if (r_type == R_SPARC_WPLT30 && h == NULL) + break; + else + { + BFD_ASSERT (h != NULL); + } + + if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL) + { + /* We didn't make a PLT entry for this symbol. This + happens when statically linking PIC code, or when + using -Bsymbolic. */ + break; + } + + relocation = (htab->elf.splt->output_section->vma + + htab->elf.splt->output_offset + + h->plt.offset); + unresolved_reloc = FALSE; + if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64) + { + r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64; + is_plt = TRUE; + goto r_sparc_plt32; + } + 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_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: + r_sparc_plt32: + if ((input_section->flags & SEC_ALLOC) == 0 + || is_vxworks_tls) + break; + + if ((info->shared + && (h == NULL + || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT + || h->root.type != bfd_link_hash_undefweak) + && (! howto->pc_relative + || !SYMBOL_CALLS_LOCAL (info, h))) + || (!info->shared + && h != NULL + && h->dynindx != -1 + && !h->non_got_ref + && ((h->def_dynamic + && !h->def_regular) + || h->root.type == bfd_link_hash_undefweak + || h->root.type == bfd_link_hash_undefined))) + { + Elf_Internal_Rela outrel; + bfd_boolean skip, relocate = FALSE; + + /* When generating a shared object, these relocations + are copied into the output file to be resolved at run + time. */ + + BFD_ASSERT (sreloc != NULL); + + skip = FALSE; + + outrel.r_offset = + _bfd_elf_section_offset (output_bfd, info, input_section, + rel->r_offset); + if (outrel.r_offset == (bfd_vma) -1) + skip = TRUE; + else if (outrel.r_offset == (bfd_vma) -2) + skip = TRUE, relocate = TRUE; + outrel.r_offset += (input_section->output_section->vma + + input_section->output_offset); + + /* Optimize unaligned reloc usage now that we know where + it finally resides. */ + switch (r_type) + { + case R_SPARC_16: + if (outrel.r_offset & 1) + r_type = R_SPARC_UA16; + break; + case R_SPARC_UA16: + if (!(outrel.r_offset & 1)) + r_type = R_SPARC_16; + break; + case R_SPARC_32: + if (outrel.r_offset & 3) + r_type = R_SPARC_UA32; + break; + case R_SPARC_UA32: + if (!(outrel.r_offset & 3)) + r_type = R_SPARC_32; + break; + case R_SPARC_64: + if (outrel.r_offset & 7) + r_type = R_SPARC_UA64; + break; + case R_SPARC_UA64: + if (!(outrel.r_offset & 7)) + r_type = R_SPARC_64; + break; + case R_SPARC_DISP8: + case R_SPARC_DISP16: + case R_SPARC_DISP32: + case R_SPARC_DISP64: + /* If the symbol is not dynamic, we should not keep + a dynamic relocation. But an .rela.* slot has been + allocated for it, output R_SPARC_NONE. + FIXME: Add code tracking needed dynamic relocs as + e.g. i386 has. */ + if (h->dynindx == -1) + skip = TRUE, relocate = TRUE; + break; + } + + if (skip) + memset (&outrel, 0, sizeof outrel); + /* h->dynindx may be -1 if the symbol was marked to + become local. */ + else if (h != NULL && + h->dynindx != -1 + && (! is_plt + || !info->shared + || !SYMBOLIC_BIND (info, h) + || !h->def_regular)) + { + BFD_ASSERT (h->dynindx != -1); + outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type); + outrel.r_addend = rel->r_addend; + } + else + { + if (r_type == R_SPARC_32 || r_type == R_SPARC_64) + { + outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, + 0, R_SPARC_RELATIVE); + outrel.r_addend = relocation + rel->r_addend; + } + else + { + long indx; + + outrel.r_addend = relocation + rel->r_addend; + + if (is_plt) + sec = htab->elf.splt; + + if (bfd_is_abs_section (sec)) + indx = 0; + else if (sec == NULL || sec->owner == NULL) + { + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + else + { + asection *osec; + + /* We are turning this relocation into one + against a section symbol. It would be + proper to subtract the symbol's value, + osec->vma, from the emitted reloc addend, + but ld.so expects buggy relocs. */ + osec = sec->output_section; + indx = elf_section_data (osec)->dynindx; + + if (indx == 0) + { + osec = htab->elf.text_index_section; + indx = elf_section_data (osec)->dynindx; + } + + /* FIXME: we really should be able to link non-pic + shared libraries. */ + if (indx == 0) + { + BFD_FAIL (); + (*_bfd_error_handler) + (_("%B: probably compiled without -fPIC?"), + input_bfd); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + } + + outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx, + r_type); + } + } + + sparc_elf_append_rela (output_bfd, sreloc, &outrel); + + /* This reloc will be computed at runtime, so there's no + need to do anything now. */ + if (! relocate) + continue; + } + break; + + case R_SPARC_TLS_GD_HI22: + if (! ABI_64_P (input_bfd) + && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd) + { + /* R_SPARC_REV32 used the same reloc number as + R_SPARC_TLS_GD_HI22. */ + r_type = R_SPARC_REV32; + break; + } + /* Fall through */ + + case R_SPARC_TLS_GD_LO10: + case R_SPARC_TLS_IE_HI22: + case R_SPARC_TLS_IE_LO10: + r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL); + tls_type = GOT_UNKNOWN; + if (h == NULL && local_got_offsets) + tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; + else if (h != NULL) + { + tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; + if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE) + switch (SPARC_ELF_R_TYPE (rel->r_info)) + { + case R_SPARC_TLS_GD_HI22: + case R_SPARC_TLS_IE_HI22: + r_type = R_SPARC_TLS_LE_HIX22; + break; + default: + r_type = R_SPARC_TLS_LE_LOX10; + break; + } + } + if (tls_type == GOT_TLS_IE) + switch (r_type) + { + case R_SPARC_TLS_GD_HI22: + r_type = R_SPARC_TLS_IE_HI22; + break; + case R_SPARC_TLS_GD_LO10: + r_type = R_SPARC_TLS_IE_LO10; + break; + } + + if (r_type == R_SPARC_TLS_LE_HIX22) + { + relocation = tpoff (info, relocation); + break; + } + if (r_type == R_SPARC_TLS_LE_LOX10) + { + /* Change add into xor. */ + relocation = tpoff (info, relocation); + bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd, + contents + rel->r_offset) + | 0x80182000), contents + rel->r_offset); + break; + } + + if (h != NULL) + { + off = h->got.offset; + h->got.offset |= 1; + } + else + { + BFD_ASSERT (local_got_offsets != NULL); + off = local_got_offsets[r_symndx]; + local_got_offsets[r_symndx] |= 1; + } + + r_sparc_tlsldm: + if (htab->elf.sgot == NULL) + abort (); + + if ((off & 1) != 0) + off &= ~1; + else + { + Elf_Internal_Rela outrel; + int dr_type, indx; + + if (htab->elf.srelgot == NULL) + abort (); + + SPARC_ELF_PUT_WORD (htab, output_bfd, 0, + htab->elf.sgot->contents + off); + outrel.r_offset = (htab->elf.sgot->output_section->vma + + htab->elf.sgot->output_offset + off); + indx = h && h->dynindx != -1 ? h->dynindx : 0; + if (r_type == R_SPARC_TLS_IE_HI22 + || r_type == R_SPARC_TLS_IE_LO10) + dr_type = SPARC_ELF_TPOFF_RELOC (htab); + else + dr_type = SPARC_ELF_DTPMOD_RELOC (htab); + if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0) + outrel.r_addend = relocation - dtpoff_base (info); + else + outrel.r_addend = 0; + outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type); + sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel); + + if (r_type == R_SPARC_TLS_GD_HI22 + || r_type == R_SPARC_TLS_GD_LO10) + { + if (indx == 0) + { + BFD_ASSERT (! unresolved_reloc); + SPARC_ELF_PUT_WORD (htab, output_bfd, + relocation - dtpoff_base (info), + (htab->elf.sgot->contents + off + + SPARC_ELF_WORD_BYTES (htab))); + } + else + { + SPARC_ELF_PUT_WORD (htab, output_bfd, 0, + (htab->elf.sgot->contents + off + + SPARC_ELF_WORD_BYTES (htab))); + outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, + SPARC_ELF_DTPOFF_RELOC (htab)); + outrel.r_offset += SPARC_ELF_WORD_BYTES (htab); + sparc_elf_append_rela (output_bfd, htab->elf.srelgot, + &outrel); + } + } + else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab)) + { + SPARC_ELF_PUT_WORD (htab, output_bfd, 0, + (htab->elf.sgot->contents + off + + SPARC_ELF_WORD_BYTES (htab))); + } + } + + if (off >= (bfd_vma) -2) + abort (); + + relocation = htab->elf.sgot->output_offset + off - got_base; + unresolved_reloc = FALSE; + howto = _bfd_sparc_elf_howto_table + r_type; + break; + + case R_SPARC_TLS_LDM_HI22: + case R_SPARC_TLS_LDM_LO10: + if (! info->shared) + { + bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); + continue; + } + off = htab->tls_ldm_got.offset; + htab->tls_ldm_got.offset |= 1; + goto r_sparc_tlsldm; + + case R_SPARC_TLS_LDO_HIX22: + case R_SPARC_TLS_LDO_LOX10: + if (info->shared) + { + relocation -= dtpoff_base (info); + break; + } + + r_type = (r_type == R_SPARC_TLS_LDO_HIX22 + ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10); + /* Fall through. */ + + case R_SPARC_TLS_LE_HIX22: + case R_SPARC_TLS_LE_LOX10: + if (info->shared) + { + Elf_Internal_Rela outrel; + bfd_boolean skip; + + BFD_ASSERT (sreloc != NULL); + skip = FALSE; + outrel.r_offset = + _bfd_elf_section_offset (output_bfd, info, input_section, + rel->r_offset); + if (outrel.r_offset == (bfd_vma) -1) + skip = TRUE; + else if (outrel.r_offset == (bfd_vma) -2) + skip = TRUE; + outrel.r_offset += (input_section->output_section->vma + + input_section->output_offset); + if (skip) + memset (&outrel, 0, sizeof outrel); + else + { + outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type); + outrel.r_addend = relocation - dtpoff_base (info) + + rel->r_addend; + } + + sparc_elf_append_rela (output_bfd, sreloc, &outrel); + continue; + } + relocation = tpoff (info, relocation); + break; + + case R_SPARC_TLS_LDM_CALL: + if (! info->shared) + { + /* mov %g0, %o0 */ + bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset); + continue; + } + /* Fall through */ + + case R_SPARC_TLS_GD_CALL: + tls_type = GOT_UNKNOWN; + if (h == NULL && local_got_offsets) + tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; + else if (h != NULL) + tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; + if (! info->shared + || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE)) + { + Elf_Internal_Rela *rel2; + bfd_vma insn; + + if (!info->shared && (h == NULL || h->dynindx == -1)) + { + /* GD -> LE */ + bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); + continue; + } + + /* GD -> IE */ + if (rel + 1 < relend + && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD + && rel[1].r_offset == rel->r_offset + 4 + && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx + && (((insn = bfd_get_32 (input_bfd, + contents + rel[1].r_offset)) + >> 25) & 0x1f) == 8) + { + /* We have + call __tls_get_addr, %tgd_call(foo) + add %reg1, %reg2, %o0, %tgd_add(foo) + and change it into IE: + {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo) + add %g7, %o0, %o0, %tie_add(foo). + add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2, + ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2, + ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */ + bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000), + contents + rel->r_offset); + bfd_put_32 (output_bfd, 0x9001c008, + contents + rel->r_offset + 4); + rel++; + continue; + } + + /* We cannot just overwrite the delay slot instruction, + as it might be what puts the %o0 argument to + __tls_get_addr into place. So we have to transpose + the delay slot with the add we patch in. */ + insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); + bfd_put_32 (output_bfd, insn, + contents + rel->r_offset); + bfd_put_32 (output_bfd, 0x9001c008, + contents + rel->r_offset + 4); + + rel2 = rel; + while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend, + rel->r_offset + 4)) + != NULL) + { + /* If the instruction we moved has a relocation attached to + it, adjust the offset so that it will apply to the correct + instruction. */ + rel2->r_offset -= 4; + } + continue; + } + + h = (struct elf_link_hash_entry *) + bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE, + FALSE, TRUE); + BFD_ASSERT (h != NULL); + r_type = R_SPARC_WPLT30; + howto = _bfd_sparc_elf_howto_table + r_type; + goto r_sparc_wplt30; + + case R_SPARC_TLS_GD_ADD: + tls_type = GOT_UNKNOWN; + if (h == NULL && local_got_offsets) + tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; + else if (h != NULL) + tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; + if (! info->shared || tls_type == GOT_TLS_IE) + { + /* add %reg1, %reg2, %reg3, %tgd_add(foo) + changed into IE: + {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo) + or LE: + add %g7, %reg2, %reg3. */ + bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); + if ((h != NULL && h->dynindx != -1) || info->shared) + relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000); + else + relocation = (insn & ~0x7c000) | 0x1c000; + bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); + } + continue; + + case R_SPARC_TLS_LDM_ADD: + if (! info->shared) + bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); + continue; + + case R_SPARC_TLS_LDO_ADD: + if (! info->shared) + { + /* Change rs1 into %g7. */ + bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); + insn = (insn & ~0x7c000) | 0x1c000; + bfd_put_32 (output_bfd, insn, contents + rel->r_offset); + } + continue; + + case R_SPARC_TLS_IE_LD: + case R_SPARC_TLS_IE_LDX: + if (! info->shared && (h == NULL || h->dynindx == -1)) + { + bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); + int rs2 = insn & 0x1f; + int rd = (insn >> 25) & 0x1f; + + if (rs2 == rd) + relocation = SPARC_NOP; + else + relocation = 0x80100000 | (insn & 0x3e00001f); + bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); + } + continue; + + case R_SPARC_TLS_IE_ADD: + /* Totally useless relocation. */ + continue; + + case R_SPARC_TLS_DTPOFF32: + case R_SPARC_TLS_DTPOFF64: + relocation -= dtpoff_base (info); + break; + + default: + break; + } + + /* Dynamic relocs are not propagated for SEC_DEBUGGING sections + because such sections are not SEC_ALLOC and thus ld.so will + not process them. */ + if (unresolved_reloc + && !((input_section->flags & SEC_DEBUGGING) != 0 + && h->def_dynamic) + && _bfd_elf_section_offset (output_bfd, info, input_section, + rel->r_offset) != (bfd_vma) -1) + (*_bfd_error_handler) + (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), + input_bfd, + input_section, + (long) rel->r_offset, + howto->name, + h->root.root.string); + + r = bfd_reloc_continue; + if (r_type == R_SPARC_OLO10) + { + bfd_vma x; + + if (! ABI_64_P (output_bfd)) + abort (); + + relocation += rel->r_addend; + relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info); + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff); + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + + r = bfd_check_overflow (howto->complain_on_overflow, + howto->bitsize, howto->rightshift, + bfd_arch_bits_per_address (input_bfd), + relocation); + } + else if (r_type == R_SPARC_WDISP16) + { + bfd_vma x; + + relocation += rel->r_addend; + relocation -= (input_section->output_section->vma + + input_section->output_offset); + relocation -= rel->r_offset; + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x |= ((((relocation >> 2) & 0xc000) << 6) + | ((relocation >> 2) & 0x3fff)); + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + + r = bfd_check_overflow (howto->complain_on_overflow, + howto->bitsize, howto->rightshift, + bfd_arch_bits_per_address (input_bfd), + relocation); + } + else if (r_type == R_SPARC_WDISP10) + { + bfd_vma x; + + relocation += rel->r_addend; + relocation -= (input_section->output_section->vma + + input_section->output_offset); + relocation -= rel->r_offset; + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x |= ((((relocation >> 2) & 0x300) << 11) + | (((relocation >> 2) & 0xff) << 5)); + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + + r = bfd_check_overflow (howto->complain_on_overflow, + howto->bitsize, howto->rightshift, + bfd_arch_bits_per_address (input_bfd), + relocation); + } + else if (r_type == R_SPARC_REV32) + { + bfd_vma x; + + relocation = relocation + rel->r_addend; + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x = x + relocation; + bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset); + r = bfd_reloc_ok; + } + else if (r_type == R_SPARC_TLS_LDO_HIX22 + || r_type == R_SPARC_TLS_LE_HIX22) + { + bfd_vma x; + + relocation += rel->r_addend; + if (r_type == R_SPARC_TLS_LE_HIX22) + relocation ^= MINUS_ONE; + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + r = bfd_reloc_ok; + } + else if (r_type == R_SPARC_TLS_LDO_LOX10 + || r_type == R_SPARC_TLS_LE_LOX10) + { + bfd_vma x; + + relocation += rel->r_addend; + relocation &= 0x3ff; + if (r_type == R_SPARC_TLS_LE_LOX10) + relocation |= 0x1c00; + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x = (x & ~(bfd_vma) 0x1fff) | relocation; + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + + r = bfd_reloc_ok; + } + else if (r_type == R_SPARC_HIX22 + || r_type == R_SPARC_GOTDATA_HIX22) + { + bfd_vma x; + + relocation += rel->r_addend; + if (r_type == R_SPARC_HIX22 + || (bfd_signed_vma) relocation < 0) + relocation = relocation ^ MINUS_ONE; + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + + r = bfd_check_overflow (howto->complain_on_overflow, + howto->bitsize, howto->rightshift, + bfd_arch_bits_per_address (input_bfd), + relocation); + } + else if (r_type == R_SPARC_LOX10 + || r_type == R_SPARC_GOTDATA_LOX10) + { + bfd_vma x; + + relocation += rel->r_addend; + if (r_type == R_SPARC_LOX10 + || (bfd_signed_vma) relocation < 0) + relocation = (relocation & 0x3ff) | 0x1c00; + else + relocation = (relocation & 0x3ff); + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x = (x & ~(bfd_vma) 0x1fff) | relocation; + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + + r = bfd_reloc_ok; + } + else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30) + && sec_do_relax (input_section) + && rel->r_offset + 4 < input_section->size) + { +#define G0 0 +#define O7 15 +#define XCC (2 << 20) +#define COND(x) (((x)&0xf)<<25) +#define CONDA COND(0x8) +#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) +#define INSN_BA (F2(0,2) | CONDA) +#define INSN_OR F3(2, 0x2, 0) +#define INSN_NOP F2(0,4) + + bfd_vma x, y; + + /* If the instruction is a call with either: + restore + arithmetic instruction with rd == %o7 + where rs1 != %o7 and rs2 if it is register != %o7 + then we can optimize if the call destination is near + by changing the call into a branch always. */ + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); + if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2)) + { + if (((y & OP3(~0)) == OP3(0x3d) /* restore */ + || ((y & OP3(0x28)) == 0 /* arithmetic */ + && (y & RD(~0)) == RD(O7))) + && (y & RS1(~0)) != RS1(O7) + && ((y & F3I(~0)) + || (y & RS2(~0)) != RS2(O7))) + { + bfd_vma reloc; + + reloc = relocation + rel->r_addend - rel->r_offset; + reloc -= (input_section->output_section->vma + + input_section->output_offset); + + /* Ensure the branch fits into simm22. */ + if ((reloc & 3) == 0 + && ((reloc & ~(bfd_vma)0x7fffff) == 0 + || ((reloc | 0x7fffff) == ~(bfd_vma)0))) + { + reloc >>= 2; + + /* Check whether it fits into simm19. */ + if (((reloc & 0x3c0000) == 0 + || (reloc & 0x3c0000) == 0x3c0000) + && (ABI_64_P (output_bfd) + || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS)) + x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */ + else + x = INSN_BA | (reloc & 0x3fffff); /* ba */ + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + r = bfd_reloc_ok; + if (rel->r_offset >= 4 + && (y & (0xffffffff ^ RS1(~0))) + == (INSN_OR | RD(O7) | RS2(G0))) + { + bfd_vma z; + unsigned int reg; + + z = bfd_get_32 (input_bfd, + contents + rel->r_offset - 4); + if ((z & (0xffffffff ^ RD(~0))) + != (INSN_OR | RS1(O7) | RS2(G0))) + break; + + /* The sequence was + or %o7, %g0, %rN + call foo + or %rN, %g0, %o7 + + If call foo was replaced with ba, replace + or %rN, %g0, %o7 with nop. */ + + reg = (y & RS1(~0)) >> 14; + if (reg != ((z & RD(~0)) >> 25) + || reg == G0 || reg == O7) + break; + + bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP, + contents + rel->r_offset + 4); + } + + } + } + } + } + + if (r == bfd_reloc_continue) + { +do_relocation: + r = _bfd_final_link_relocate (howto, input_bfd, input_section, + contents, rel->r_offset, + relocation, rel->r_addend); + } + if (r != bfd_reloc_ok) + { + switch (r) + { + default: + case bfd_reloc_outofrange: + abort (); + case bfd_reloc_overflow: + { + const char *name; + + /* The Solaris native linker silently disregards overflows. + We don't, but this breaks stabs debugging info, whose + relocations are only 32-bits wide. Ignore overflows in + this case and also for discarded entries. */ + if ((r_type == R_SPARC_32 + || r_type == R_SPARC_UA32 + || r_type == R_SPARC_DISP32) + && (((input_section->flags & SEC_DEBUGGING) != 0 + && strcmp (bfd_section_name (input_bfd, + input_section), + ".stab") == 0) + || _bfd_elf_section_offset (output_bfd, info, + input_section, + rel->r_offset) + == (bfd_vma)-1)) + break; + + if (h != NULL) + { + /* Assume this is a call protected by other code that + detect the symbol is undefined. If this is the case, + we can safely ignore the overflow. If not, the + program is hosed anyway, and a little warning isn't + going to help. */ + if (h->root.type == bfd_link_hash_undefweak + && howto->pc_relative) + break; + + name = NULL; + } + else + { + name = bfd_elf_string_from_elf_section (input_bfd, + symtab_hdr->sh_link, + sym->st_name); + if (name == NULL) + return FALSE; + if (*name == '\0') + name = bfd_section_name (input_bfd, sec); + } + if (! ((*info->callbacks->reloc_overflow) + (info, (h ? &h->root : NULL), name, howto->name, + (bfd_vma) 0, input_bfd, input_section, + rel->r_offset))) + return FALSE; + } + break; + } + } + } + + return TRUE; +} + +/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry + and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET + is the offset of the associated .got.plt entry from + _GLOBAL_OFFSET_TABLE_. */ + +static void +sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info, + bfd_vma plt_offset, bfd_vma plt_index, + bfd_vma got_offset) +{ + bfd_vma got_base; + const bfd_vma *plt_entry; + struct _bfd_sparc_elf_link_hash_table *htab; + bfd_byte *loc; + Elf_Internal_Rela rela; + + htab = _bfd_sparc_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + + if (info->shared) + { + plt_entry = sparc_vxworks_shared_plt_entry; + got_base = 0; + } + else + { + plt_entry = sparc_vxworks_exec_plt_entry; + got_base = (htab->elf.hgot->root.u.def.value + + htab->elf.hgot->root.u.def.section->output_offset + + htab->elf.hgot->root.u.def.section->output_section->vma); + } + + /* Fill in the entry in the procedure linkage table. */ + bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10), + htab->elf.splt->contents + plt_offset); + bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff), + htab->elf.splt->contents + plt_offset + 4); + bfd_put_32 (output_bfd, plt_entry[2], + htab->elf.splt->contents + plt_offset + 8); + bfd_put_32 (output_bfd, plt_entry[3], + htab->elf.splt->contents + plt_offset + 12); + bfd_put_32 (output_bfd, plt_entry[4], + htab->elf.splt->contents + plt_offset + 16); + bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10), + htab->elf.splt->contents + plt_offset + 20); + /* PC-relative displacement for a branch to the start of + the PLT section. */ + bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2) + & 0x003fffff), + htab->elf.splt->contents + plt_offset + 24); + bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff), + htab->elf.splt->contents + plt_offset + 28); + + /* Fill in the .got.plt entry, pointing initially at the + second half of the PLT entry. */ + BFD_ASSERT (htab->elf.sgotplt != NULL); + bfd_put_32 (output_bfd, + htab->elf.splt->output_section->vma + + htab->elf.splt->output_offset + + plt_offset + 20, + htab->elf.sgotplt->contents + got_offset); + + /* Add relocations to .rela.plt.unloaded. */ + if (!info->shared) + { + loc = (htab->srelplt2->contents + + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela)); + + /* Relocate the initial sethi. */ + rela.r_offset = (htab->elf.splt->output_section->vma + + htab->elf.splt->output_offset + + plt_offset); + rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); + rela.r_addend = got_offset; + bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); + loc += sizeof (Elf32_External_Rela); + + /* Likewise the following or. */ + rela.r_offset += 4; + rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); + bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); + loc += sizeof (Elf32_External_Rela); + + /* Relocate the .got.plt entry. */ + rela.r_offset = (htab->elf.sgotplt->output_section->vma + + htab->elf.sgotplt->output_offset + + got_offset); + rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32); + rela.r_addend = plt_offset + 20; + bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); + } +} + +/* Finish up dynamic symbol handling. We set the contents of various + dynamic sections here. */ + +bfd_boolean +_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd, + struct bfd_link_info *info, + struct elf_link_hash_entry *h, + Elf_Internal_Sym *sym) +{ + struct _bfd_sparc_elf_link_hash_table *htab; + const struct elf_backend_data *bed; + + htab = _bfd_sparc_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + bed = get_elf_backend_data (output_bfd); + + if (h->plt.offset != (bfd_vma) -1) + { + asection *splt; + asection *srela; + Elf_Internal_Rela rela; + bfd_byte *loc; + bfd_vma r_offset, got_offset; + int rela_index; + + /* When building a static executable, use .iplt and + .rela.iplt sections for STT_GNU_IFUNC symbols. */ + if (htab->elf.splt != NULL) + { + splt = htab->elf.splt; + srela = htab->elf.srelplt; + } + else + { + splt = htab->elf.iplt; + srela = htab->elf.irelplt; + } + + if (splt == NULL || srela == NULL) + abort (); + + /* Fill in the entry in the .rela.plt section. */ + if (htab->is_vxworks) + { + /* Work out the index of this PLT entry. */ + rela_index = ((h->plt.offset - htab->plt_header_size) + / htab->plt_entry_size); + + /* Calculate the offset of the associated .got.plt entry. + The first three entries are reserved. */ + got_offset = (rela_index + 3) * 4; + + sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset, + rela_index, got_offset); + + + /* On VxWorks, the relocation points to the .got.plt entry, + not the .plt entry. */ + rela.r_offset = (htab->elf.sgotplt->output_section->vma + + htab->elf.sgotplt->output_offset + + got_offset); + rela.r_addend = 0; + rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, + R_SPARC_JMP_SLOT); + } + else + { + bfd_boolean ifunc = FALSE; + + /* Fill in the entry in the procedure linkage table. */ + rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt, + h->plt.offset, splt->size, + &r_offset); + + if (h == NULL + || h->dynindx == -1 + || ((info->executable + || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) + && h->def_regular + && h->type == STT_GNU_IFUNC)) + { + ifunc = TRUE; + BFD_ASSERT (h == NULL + || (h->type == STT_GNU_IFUNC + && h->def_regular + && (h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak))); + } + + rela.r_offset = r_offset + + (splt->output_section->vma + splt->output_offset); + if (ABI_64_P (output_bfd) + && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)) + { + if (ifunc) + { + rela.r_addend = (h->root.u.def.section->output_section->vma + + h->root.u.def.section->output_offset + + h->root.u.def.value); + rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, + R_SPARC_IRELATIVE); + } + else + { + rela.r_addend = (-(h->plt.offset + 4) + - splt->output_section->vma + - splt->output_offset); + rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, + R_SPARC_JMP_SLOT); + } + } + else + { + if (ifunc) + { + rela.r_addend = (h->root.u.def.section->output_section->vma + + h->root.u.def.section->output_offset + + h->root.u.def.value); + rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, + R_SPARC_JMP_IREL); + } + else + { + rela.r_addend = 0; + rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, + R_SPARC_JMP_SLOT); + } + } + } + + /* Adjust for the first 4 reserved elements in the .plt section + when setting the offset in the .rela.plt section. + Sun forgot to read their own ABI and copied elf32-sparc behaviour, + thus .plt[4] has corresponding .rela.plt[0] and so on. */ + + loc = srela->contents; + loc += rela_index * bed->s->sizeof_rela; + bed->s->swap_reloca_out (output_bfd, &rela, loc); + + if (!h->def_regular) + { + /* Mark the symbol as undefined, rather than as defined in + the .plt section. Leave the value alone. */ + sym->st_shndx = SHN_UNDEF; + /* If the symbol is weak, we do need to clear the value. + Otherwise, the PLT entry would provide a definition for + the symbol even if the symbol wasn't defined anywhere, + and so the symbol would never be NULL. */ + if (!h->ref_regular_nonweak) + sym->st_value = 0; + } + } + + if (h->got.offset != (bfd_vma) -1 + && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD + && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE) + { + asection *sgot; + asection *srela; + Elf_Internal_Rela rela; + + /* This symbol has an entry in the GOT. Set it up. */ + + sgot = htab->elf.sgot; + srela = htab->elf.srelgot; + BFD_ASSERT (sgot != NULL && srela != NULL); + + rela.r_offset = (sgot->output_section->vma + + sgot->output_offset + + (h->got.offset &~ (bfd_vma) 1)); + + /* If this is a -Bsymbolic link, and the symbol is defined + locally, we just want to emit a RELATIVE reloc. Likewise if + the symbol was forced to be local because of a version file. + The entry in the global offset table will already have been + initialized in the relocate_section function. */ + if (! info->shared + && h->type == STT_GNU_IFUNC + && h->def_regular) + { + asection *plt; + + /* We load the GOT entry with the PLT entry. */ + plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt; + SPARC_ELF_PUT_WORD (htab, output_bfd, + (plt->output_section->vma + + plt->output_offset + h->plt.offset), + htab->elf.sgot->contents + + (h->got.offset & ~(bfd_vma) 1)); + return TRUE; + } + else if (info->shared + && SYMBOL_REFERENCES_LOCAL (info, h)) + { + asection *sec = h->root.u.def.section; + if (h->type == STT_GNU_IFUNC) + rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE); + else + rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE); + rela.r_addend = (h->root.u.def.value + + sec->output_section->vma + + sec->output_offset); + } + else + { + rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT); + rela.r_addend = 0; + } + + SPARC_ELF_PUT_WORD (htab, output_bfd, 0, + sgot->contents + (h->got.offset & ~(bfd_vma) 1)); + sparc_elf_append_rela (output_bfd, srela, &rela); + } + + if (h->needs_copy) + { + asection *s; + Elf_Internal_Rela rela; + + /* This symbols needs a copy reloc. Set it up. */ + BFD_ASSERT (h->dynindx != -1); + + s = bfd_get_linker_section (h->root.u.def.section->owner, + ".rela.bss"); + BFD_ASSERT (s != NULL); + + rela.r_offset = (h->root.u.def.value + + h->root.u.def.section->output_section->vma + + h->root.u.def.section->output_offset); + rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY); + rela.r_addend = 0; + sparc_elf_append_rela (output_bfd, s, &rela); + } + + /* Mark some specially defined symbols as absolute. On VxWorks, + _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the + ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */ + if (sym != NULL + && (h == htab->elf.hdynamic + || (!htab->is_vxworks + && (h == htab->elf.hgot || h == htab->elf.hplt)))) + sym->st_shndx = SHN_ABS; + + return TRUE; +} + +/* Finish up the dynamic sections. */ + +static bfd_boolean +sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info, + bfd *dynobj, asection *sdyn, + asection *splt ATTRIBUTE_UNUSED) +{ + struct _bfd_sparc_elf_link_hash_table *htab; + const struct elf_backend_data *bed; + bfd_byte *dyncon, *dynconend; + size_t dynsize; + int stt_regidx = -1; + bfd_boolean abi_64_p; + + htab = _bfd_sparc_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + bed = get_elf_backend_data (output_bfd); + dynsize = bed->s->sizeof_dyn; + dynconend = sdyn->contents + sdyn->size; + abi_64_p = ABI_64_P (output_bfd); + for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize) + { + Elf_Internal_Dyn dyn; + const char *name; + bfd_boolean size; + + bed->s->swap_dyn_in (dynobj, dyncon, &dyn); + + if (htab->is_vxworks && dyn.d_tag == DT_RELASZ) + { + /* On VxWorks, DT_RELASZ should not include the relocations + in .rela.plt. */ + if (htab->elf.srelplt) + { + dyn.d_un.d_val -= htab->elf.srelplt->size; + bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); + } + } + else if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT) + { + /* On VxWorks, DT_PLTGOT should point to the start of the GOT, + not to the start of the PLT. */ + if (htab->elf.sgotplt) + { + dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma + + htab->elf.sgotplt->output_offset); + bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); + } + } + else if (htab->is_vxworks + && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) + bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); + else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER) + { + if (stt_regidx == -1) + { + stt_regidx = + _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1); + if (stt_regidx == -1) + return FALSE; + } + dyn.d_un.d_val = stt_regidx++; + bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); + } + else + { + switch (dyn.d_tag) + { + case DT_PLTGOT: name = ".plt"; size = FALSE; break; + case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; + case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; + default: name = NULL; size = FALSE; break; + } + + if (name != NULL) + { + asection *s; + + s = bfd_get_section_by_name (output_bfd, name); + if (s == NULL) + dyn.d_un.d_val = 0; + else + { + if (! size) + dyn.d_un.d_ptr = s->vma; + else + dyn.d_un.d_val = s->size; + } + bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); + } + } + } + return TRUE; +} + +/* Install the first PLT entry in a VxWorks executable and make sure that + .rela.plt.unloaded relocations have the correct symbol indexes. */ + +static void +sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info) +{ + struct _bfd_sparc_elf_link_hash_table *htab; + Elf_Internal_Rela rela; + bfd_vma got_base; + bfd_byte *loc; + + htab = _bfd_sparc_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + + /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */ + got_base = (htab->elf.hgot->root.u.def.section->output_section->vma + + htab->elf.hgot->root.u.def.section->output_offset + + htab->elf.hgot->root.u.def.value); + + /* Install the initial PLT entry. */ + bfd_put_32 (output_bfd, + sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10), + htab->elf.splt->contents); + bfd_put_32 (output_bfd, + sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff), + htab->elf.splt->contents + 4); + bfd_put_32 (output_bfd, + sparc_vxworks_exec_plt0_entry[2], + htab->elf.splt->contents + 8); + bfd_put_32 (output_bfd, + sparc_vxworks_exec_plt0_entry[3], + htab->elf.splt->contents + 12); + bfd_put_32 (output_bfd, + sparc_vxworks_exec_plt0_entry[4], + htab->elf.splt->contents + 16); + + loc = htab->srelplt2->contents; + + /* Add an unloaded relocation for the initial entry's "sethi". */ + rela.r_offset = (htab->elf.splt->output_section->vma + + htab->elf.splt->output_offset); + rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); + rela.r_addend = 8; + bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); + loc += sizeof (Elf32_External_Rela); + + /* Likewise the following "or". */ + rela.r_offset += 4; + rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); + bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); + loc += sizeof (Elf32_External_Rela); + + /* Fix up the remaining .rela.plt.unloaded relocations. They may have + the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order + in which symbols were output. */ + while (loc < htab->srelplt2->contents + htab->srelplt2->size) + { + Elf_Internal_Rela rel; + + /* The entry's initial "sethi" (against _G_O_T_). */ + bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); + rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); + bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); + loc += sizeof (Elf32_External_Rela); + + /* The following "or" (also against _G_O_T_). */ + bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); + rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); + bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); + loc += sizeof (Elf32_External_Rela); + + /* The .got.plt entry (against _P_L_T_). */ + bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); + rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32); + bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); + loc += sizeof (Elf32_External_Rela); + } +} + +/* Install the first PLT entry in a VxWorks shared object. */ + +static void +sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info) +{ + struct _bfd_sparc_elf_link_hash_table *htab; + unsigned int i; + + htab = _bfd_sparc_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + + for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++) + bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i], + htab->elf.splt->contents + i * 4); +} + +/* Finish up local dynamic symbol handling. We set the contents of + various dynamic sections here. */ + +static bfd_boolean +finish_local_dynamic_symbol (void **slot, void *inf) +{ + struct elf_link_hash_entry *h + = (struct elf_link_hash_entry *) *slot; + struct bfd_link_info *info + = (struct bfd_link_info *) inf; + + return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info, + h, NULL); +} + +bfd_boolean +_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) +{ + bfd *dynobj; + asection *sdyn; + struct _bfd_sparc_elf_link_hash_table *htab; + + htab = _bfd_sparc_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + dynobj = htab->elf.dynobj; + + sdyn = bfd_get_linker_section (dynobj, ".dynamic"); + + if (elf_hash_table (info)->dynamic_sections_created) + { + asection *splt; + + splt = htab->elf.splt; + BFD_ASSERT (splt != NULL && sdyn != NULL); + + if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt)) + return FALSE; + + /* Initialize the contents of the .plt section. */ + if (splt->size > 0) + { + if (htab->is_vxworks) + { + if (info->shared) + sparc_vxworks_finish_shared_plt (output_bfd, info); + else + sparc_vxworks_finish_exec_plt (output_bfd, info); + } + else + { + memset (splt->contents, 0, htab->plt_header_size); + if (!ABI_64_P (output_bfd)) + bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, + splt->contents + splt->size - 4); + } + } + + if (elf_section_data (splt->output_section) != NULL) + elf_section_data (splt->output_section)->this_hdr.sh_entsize + = ((htab->is_vxworks || !ABI_64_P (output_bfd)) + ? 0 : htab->plt_entry_size); + } + + /* Set the first entry in the global offset table to the address of + the dynamic section. */ + if (htab->elf.sgot && htab->elf.sgot->size > 0) + { + bfd_vma val = (sdyn ? + sdyn->output_section->vma + sdyn->output_offset : + 0); + + SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents); + } + + if (htab->elf.sgot) + elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = + SPARC_ELF_WORD_BYTES (htab); + + /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */ + htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info); + + return TRUE; +} + + +/* Set the right machine number for a SPARC ELF file. */ + +bfd_boolean +_bfd_sparc_elf_object_p (bfd *abfd) +{ + if (ABI_64_P (abfd)) + { + unsigned long mach = bfd_mach_sparc_v9; + + if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) + mach = bfd_mach_sparc_v9b; + else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) + mach = bfd_mach_sparc_v9a; + return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach); + } + else + { + if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) + { + if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) + return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, + bfd_mach_sparc_v8plusb); + else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) + return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, + bfd_mach_sparc_v8plusa); + else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS) + return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, + bfd_mach_sparc_v8plus); + else + return FALSE; + } + else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA) + return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, + bfd_mach_sparc_sparclite_le); + else + return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); + } +} + +/* Return address for Ith PLT stub in section PLT, for relocation REL + or (bfd_vma) -1 if it should not be included. */ + +bfd_vma +_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel) +{ + if (ABI_64_P (plt->owner)) + { + bfd_vma j; + + i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE; + if (i < PLT64_LARGE_THRESHOLD) + return plt->vma + i * PLT64_ENTRY_SIZE; + + j = (i - PLT64_LARGE_THRESHOLD) % 160; + i -= j; + return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6; + } + else + return rel->address; +} + +/* Merge backend specific data from an object file to the output + object file when linking. */ + +bfd_boolean +_bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) +{ + obj_attribute *in_attr, *in_attrs; + obj_attribute *out_attr, *out_attrs; + + if (!elf_known_obj_attributes_proc (obfd)[0].i) + { + /* This is the first object. Copy the attributes. */ + _bfd_elf_copy_obj_attributes (ibfd, obfd); + + /* Use the Tag_null value to indicate the attributes have been + initialized. */ + elf_known_obj_attributes_proc (obfd)[0].i = 1; + + return TRUE; + } + + in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU]; + out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU]; + + in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS]; + out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS]; + + out_attr->i |= in_attr->i; + out_attr->type = 1; + + /* Merge Tag_compatibility attributes and any common GNU ones. */ + _bfd_elf_merge_object_attributes (ibfd, obfd); + + return TRUE; +} |