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36af4a4e51
* elflink.h (elf_link_add_object_symbols): Use !info->executable
instead of info->shared where appropriate.
(bfd_elfNN_size_dynamic_sections, elf_link_output_extsym): Likewise.
* elflink.c (_bfd_elf_create_got_section): Likewise.
(_bfd_elf_link_create_dynamic_sections): Likewise.
(_bfd_elf_link_assign_sym_version): Likewise.
* elf32-i386.c (elf_i386_size_dynamic_sections): Create .interp section
and DT_DEBUG dynamic tag even for position independent executables.
* elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise.
* elf32-s390.c (elf_s390_size_dynamic_sections: Likewise.
* elf64-ppc.c (ppc64_elf_size_dynamic_sections: Likewise.
* elf64-s390.c (elf_s390_size_dynamic_sections: Likewise.
* elf64-x86-64.c (elf64_x86_64_size_dynamic_sections: Likewise.
* elfxx-ia64.c (elfNN_ia64_size_dynamic_sections: Likewise.
* elf32-sparc.c (elf32_sparc_size_dynamic_sections: Likewise.
* elf64-alpha.c (elf64_alpha_size_dynamic_sections: Likewise.
* elf64-sparc.c (sparc64_elf_size_dynamic_sections: Likewise.
include/
* bfdlink.h (struct bfd_link_info): Add pie and executable
bits.
ld/
* lexsup.c (OPTION_PIE): Define.
(ld_options): Add -pie and --pic-executable options.
(parse_args): Handle OPTION_PIE.
* ldmain.c (main): Initialize link_info.pie and
link_info.executable.
* genscripts.sh: Generate PIE scripts.
* ld.texinfo: Document -pie and --pic-executable options.
* emultempl/elf32.em (gld${EMULATION_NAME}_after_open):
(gld${EMULATION_NAME}_place_orphan): Likewise.
(gld${EMULATION_NAME}_get_script): Include PIE scripts.
* scripttempl/elf.sc: In PIE scripts set . the same way as in
shared scripts.
* emulparams/elf_i386.sh (GENERATE_PIE_SCRIPT): Set to yes.
* emulparams/elf64_ia64.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf32ppc.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf64ppc.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf_x86_64.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf_s390.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf32_sparc.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf64_sparc.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf64alpha.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf64_s390.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf_i386.sh (GENERATE_PIE_SCRIPT): Likewise.
3270 lines
102 KiB
C
3270 lines
102 KiB
C
/* SPARC-specific support for 64-bit ELF
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Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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2003 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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#include "opcode/sparc.h"
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/* This is defined if one wants to build upward compatible binaries
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with the original sparc64-elf toolchain. The support is kept in for
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now but is turned off by default. dje 970930 */
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/*#define SPARC64_OLD_RELOCS*/
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#include "elf/sparc.h"
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/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
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#define MINUS_ONE (~ (bfd_vma) 0)
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static struct bfd_link_hash_table * sparc64_elf_bfd_link_hash_table_create
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PARAMS ((bfd *));
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static bfd_reloc_status_type init_insn_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *,
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bfd *, bfd_vma *, bfd_vma *));
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static reloc_howto_type *sparc64_elf_reloc_type_lookup
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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static void sparc64_elf_info_to_howto
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PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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static void sparc64_elf_build_plt
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PARAMS ((bfd *, unsigned char *, int));
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static bfd_vma sparc64_elf_plt_entry_offset
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PARAMS ((bfd_vma));
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static bfd_vma sparc64_elf_plt_ptr_offset
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PARAMS ((bfd_vma, bfd_vma));
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static bfd_boolean sparc64_elf_check_relocs
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PARAMS ((bfd *, struct bfd_link_info *, asection *sec,
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const Elf_Internal_Rela *));
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static bfd_boolean sparc64_elf_adjust_dynamic_symbol
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PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
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static bfd_boolean sparc64_elf_size_dynamic_sections
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PARAMS ((bfd *, struct bfd_link_info *));
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static int sparc64_elf_get_symbol_type
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PARAMS (( Elf_Internal_Sym *, int));
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static bfd_boolean sparc64_elf_add_symbol_hook
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PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
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const char **, flagword *, asection **, bfd_vma *));
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static bfd_boolean sparc64_elf_output_arch_syms
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PARAMS ((bfd *, struct bfd_link_info *, PTR,
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bfd_boolean (*) (PTR, const char *, Elf_Internal_Sym *, asection *)));
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static void sparc64_elf_symbol_processing
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PARAMS ((bfd *, asymbol *));
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static bfd_boolean sparc64_elf_merge_private_bfd_data
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PARAMS ((bfd *, bfd *));
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static bfd_boolean sparc64_elf_fake_sections
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PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
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static const char *sparc64_elf_print_symbol_all
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PARAMS ((bfd *, PTR, asymbol *));
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static bfd_boolean sparc64_elf_new_section_hook
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PARAMS ((bfd *, asection *));
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static bfd_boolean sparc64_elf_relax_section
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PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *));
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static bfd_boolean sparc64_elf_relocate_section
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PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
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static bfd_boolean sparc64_elf_finish_dynamic_symbol
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PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
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Elf_Internal_Sym *));
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static bfd_boolean sparc64_elf_finish_dynamic_sections
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PARAMS ((bfd *, struct bfd_link_info *));
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static bfd_boolean sparc64_elf_object_p PARAMS ((bfd *));
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static long sparc64_elf_get_reloc_upper_bound PARAMS ((bfd *, asection *));
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static long sparc64_elf_get_dynamic_reloc_upper_bound PARAMS ((bfd *));
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static bfd_boolean sparc64_elf_slurp_one_reloc_table
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PARAMS ((bfd *, asection *, Elf_Internal_Shdr *, asymbol **, bfd_boolean));
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static bfd_boolean sparc64_elf_slurp_reloc_table
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PARAMS ((bfd *, asection *, asymbol **, bfd_boolean));
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static long sparc64_elf_canonicalize_reloc
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PARAMS ((bfd *, asection *, arelent **, asymbol **));
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static long sparc64_elf_canonicalize_dynamic_reloc
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PARAMS ((bfd *, arelent **, asymbol **));
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static void sparc64_elf_write_relocs PARAMS ((bfd *, asection *, PTR));
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static enum elf_reloc_type_class sparc64_elf_reloc_type_class
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PARAMS ((const Elf_Internal_Rela *));
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/* The relocation "howto" table. */
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static bfd_reloc_status_type sparc_elf_notsup_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static bfd_reloc_status_type sparc_elf_wdisp16_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static bfd_reloc_status_type sparc_elf_hix22_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static bfd_reloc_status_type sparc_elf_lox10_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static reloc_howto_type sparc64_elf_howto_table[] =
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{
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HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
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HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
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HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
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HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
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HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
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HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
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HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
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HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
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HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
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HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
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HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
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#ifndef SPARC64_OLD_RELOCS
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HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
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/* These aren't implemented yet. */
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HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
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#endif
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HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
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HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
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HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
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HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
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HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
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HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
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HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
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HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
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HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
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HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
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HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
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HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
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HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
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HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
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HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
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HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
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HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
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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),
|
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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),
|
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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)
|
||
};
|
||
|
||
struct elf_reloc_map {
|
||
bfd_reloc_code_real_type bfd_reloc_val;
|
||
unsigned char elf_reloc_val;
|
||
};
|
||
|
||
static const struct elf_reloc_map sparc_reloc_map[] =
|
||
{
|
||
{ BFD_RELOC_NONE, R_SPARC_NONE, },
|
||
{ BFD_RELOC_16, R_SPARC_16, },
|
||
{ BFD_RELOC_16_PCREL, R_SPARC_DISP16 },
|
||
{ BFD_RELOC_8, R_SPARC_8 },
|
||
{ BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
|
||
{ BFD_RELOC_CTOR, R_SPARC_64 },
|
||
{ BFD_RELOC_32, R_SPARC_32 },
|
||
{ BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
|
||
{ BFD_RELOC_HI22, R_SPARC_HI22 },
|
||
{ BFD_RELOC_LO10, R_SPARC_LO10, },
|
||
{ BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
|
||
{ BFD_RELOC_64_PCREL, R_SPARC_DISP64 },
|
||
{ BFD_RELOC_SPARC22, R_SPARC_22 },
|
||
{ BFD_RELOC_SPARC13, R_SPARC_13 },
|
||
{ BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
|
||
{ BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
|
||
{ BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
|
||
{ BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
|
||
{ BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
|
||
{ BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
|
||
{ BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
|
||
{ BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
|
||
{ BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
|
||
{ BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
|
||
{ BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
|
||
{ BFD_RELOC_SPARC_UA16, R_SPARC_UA16 },
|
||
{ BFD_RELOC_SPARC_UA32, R_SPARC_UA32 },
|
||
{ BFD_RELOC_SPARC_UA64, R_SPARC_UA64 },
|
||
{ BFD_RELOC_SPARC_10, R_SPARC_10 },
|
||
{ BFD_RELOC_SPARC_11, R_SPARC_11 },
|
||
{ BFD_RELOC_SPARC_64, R_SPARC_64 },
|
||
{ BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 },
|
||
{ BFD_RELOC_SPARC_HH22, R_SPARC_HH22 },
|
||
{ BFD_RELOC_SPARC_HM10, R_SPARC_HM10 },
|
||
{ BFD_RELOC_SPARC_LM22, R_SPARC_LM22 },
|
||
{ BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 },
|
||
{ BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 },
|
||
{ BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 },
|
||
{ BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 },
|
||
{ BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 },
|
||
{ BFD_RELOC_SPARC_7, R_SPARC_7 },
|
||
{ BFD_RELOC_SPARC_5, R_SPARC_5 },
|
||
{ BFD_RELOC_SPARC_6, R_SPARC_6 },
|
||
{ BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64 },
|
||
{ BFD_RELOC_SPARC_TLS_GD_HI22, R_SPARC_TLS_GD_HI22 },
|
||
{ BFD_RELOC_SPARC_TLS_GD_LO10, R_SPARC_TLS_GD_LO10 },
|
||
{ BFD_RELOC_SPARC_TLS_GD_ADD, R_SPARC_TLS_GD_ADD },
|
||
{ BFD_RELOC_SPARC_TLS_GD_CALL, R_SPARC_TLS_GD_CALL },
|
||
{ BFD_RELOC_SPARC_TLS_LDM_HI22, R_SPARC_TLS_LDM_HI22 },
|
||
{ BFD_RELOC_SPARC_TLS_LDM_LO10, R_SPARC_TLS_LDM_LO10 },
|
||
{ BFD_RELOC_SPARC_TLS_LDM_ADD, R_SPARC_TLS_LDM_ADD },
|
||
{ BFD_RELOC_SPARC_TLS_LDM_CALL, R_SPARC_TLS_LDM_CALL },
|
||
{ BFD_RELOC_SPARC_TLS_LDO_HIX22, R_SPARC_TLS_LDO_HIX22 },
|
||
{ BFD_RELOC_SPARC_TLS_LDO_LOX10, R_SPARC_TLS_LDO_LOX10 },
|
||
{ BFD_RELOC_SPARC_TLS_LDO_ADD, R_SPARC_TLS_LDO_ADD },
|
||
{ BFD_RELOC_SPARC_TLS_IE_HI22, R_SPARC_TLS_IE_HI22 },
|
||
{ BFD_RELOC_SPARC_TLS_IE_LO10, R_SPARC_TLS_IE_LO10 },
|
||
{ BFD_RELOC_SPARC_TLS_IE_LD, R_SPARC_TLS_IE_LD },
|
||
{ BFD_RELOC_SPARC_TLS_IE_LDX, R_SPARC_TLS_IE_LDX },
|
||
{ BFD_RELOC_SPARC_TLS_IE_ADD, R_SPARC_TLS_IE_ADD },
|
||
{ BFD_RELOC_SPARC_TLS_LE_HIX22, R_SPARC_TLS_LE_HIX22 },
|
||
{ BFD_RELOC_SPARC_TLS_LE_LOX10, R_SPARC_TLS_LE_LOX10 },
|
||
{ BFD_RELOC_SPARC_TLS_DTPMOD32, R_SPARC_TLS_DTPMOD32 },
|
||
{ BFD_RELOC_SPARC_TLS_DTPMOD64, R_SPARC_TLS_DTPMOD64 },
|
||
{ BFD_RELOC_SPARC_TLS_DTPOFF32, R_SPARC_TLS_DTPOFF32 },
|
||
{ BFD_RELOC_SPARC_TLS_DTPOFF64, R_SPARC_TLS_DTPOFF64 },
|
||
{ BFD_RELOC_SPARC_TLS_TPOFF32, R_SPARC_TLS_TPOFF32 },
|
||
{ BFD_RELOC_SPARC_TLS_TPOFF64, R_SPARC_TLS_TPOFF64 },
|
||
#ifndef SPARC64_OLD_RELOCS
|
||
{ BFD_RELOC_SPARC_PLT32, R_SPARC_PLT32 },
|
||
#endif
|
||
{ BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64 },
|
||
{ BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22 },
|
||
{ BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10 },
|
||
{ BFD_RELOC_SPARC_H44, R_SPARC_H44 },
|
||
{ BFD_RELOC_SPARC_M44, R_SPARC_M44 },
|
||
{ BFD_RELOC_SPARC_L44, R_SPARC_L44 },
|
||
{ BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER }
|
||
};
|
||
|
||
static reloc_howto_type *
|
||
sparc64_elf_reloc_type_lookup (abfd, code)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
bfd_reloc_code_real_type code;
|
||
{
|
||
unsigned int i;
|
||
for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++)
|
||
{
|
||
if (sparc_reloc_map[i].bfd_reloc_val == code)
|
||
return &sparc64_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val];
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static void
|
||
sparc64_elf_info_to_howto (abfd, cache_ptr, dst)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
arelent *cache_ptr;
|
||
Elf_Internal_Rela *dst;
|
||
{
|
||
BFD_ASSERT (ELF64_R_TYPE_ID (dst->r_info) < (unsigned int) R_SPARC_max_std);
|
||
cache_ptr->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (dst->r_info)];
|
||
}
|
||
|
||
struct sparc64_elf_section_data
|
||
{
|
||
struct bfd_elf_section_data elf;
|
||
unsigned int do_relax, reloc_count;
|
||
};
|
||
|
||
#define sec_do_relax(sec) \
|
||
((struct sparc64_elf_section_data *) elf_section_data (sec))->do_relax
|
||
#define canon_reloc_count(sec) \
|
||
((struct sparc64_elf_section_data *) elf_section_data (sec))->reloc_count
|
||
|
||
/* Due to the way how we handle R_SPARC_OLO10, each entry in a SHT_RELA
|
||
section can represent up to two relocs, we must tell the user to allocate
|
||
more space. */
|
||
|
||
static long
|
||
sparc64_elf_get_reloc_upper_bound (abfd, sec)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
asection *sec;
|
||
{
|
||
return (sec->reloc_count * 2 + 1) * sizeof (arelent *);
|
||
}
|
||
|
||
static long
|
||
sparc64_elf_get_dynamic_reloc_upper_bound (abfd)
|
||
bfd *abfd;
|
||
{
|
||
return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 2;
|
||
}
|
||
|
||
/* Read relocations for ASECT from REL_HDR. There are RELOC_COUNT of
|
||
them. We cannot use generic elf routines for this, because R_SPARC_OLO10
|
||
has secondary addend in ELF64_R_TYPE_DATA. We handle it as two relocations
|
||
for the same location, R_SPARC_LO10 and R_SPARC_13. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols, dynamic)
|
||
bfd *abfd;
|
||
asection *asect;
|
||
Elf_Internal_Shdr *rel_hdr;
|
||
asymbol **symbols;
|
||
bfd_boolean dynamic;
|
||
{
|
||
PTR allocated = NULL;
|
||
bfd_byte *native_relocs;
|
||
arelent *relent;
|
||
unsigned int i;
|
||
int entsize;
|
||
bfd_size_type count;
|
||
arelent *relents;
|
||
|
||
allocated = (PTR) bfd_malloc (rel_hdr->sh_size);
|
||
if (allocated == NULL)
|
||
goto error_return;
|
||
|
||
if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0
|
||
|| bfd_bread (allocated, rel_hdr->sh_size, abfd) != rel_hdr->sh_size)
|
||
goto error_return;
|
||
|
||
native_relocs = (bfd_byte *) allocated;
|
||
|
||
relents = asect->relocation + canon_reloc_count (asect);
|
||
|
||
entsize = rel_hdr->sh_entsize;
|
||
BFD_ASSERT (entsize == sizeof (Elf64_External_Rela));
|
||
|
||
count = rel_hdr->sh_size / entsize;
|
||
|
||
for (i = 0, relent = relents; i < count;
|
||
i++, relent++, native_relocs += entsize)
|
||
{
|
||
Elf_Internal_Rela rela;
|
||
|
||
bfd_elf64_swap_reloca_in (abfd, native_relocs, &rela);
|
||
|
||
/* The address of an ELF reloc is section relative for an object
|
||
file, and absolute for an executable file or shared library.
|
||
The address of a normal BFD reloc is always section relative,
|
||
and the address of a dynamic reloc is absolute.. */
|
||
if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic)
|
||
relent->address = rela.r_offset;
|
||
else
|
||
relent->address = rela.r_offset - asect->vma;
|
||
|
||
if (ELF64_R_SYM (rela.r_info) == 0)
|
||
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
||
else
|
||
{
|
||
asymbol **ps, *s;
|
||
|
||
ps = symbols + ELF64_R_SYM (rela.r_info) - 1;
|
||
s = *ps;
|
||
|
||
/* Canonicalize ELF section symbols. FIXME: Why? */
|
||
if ((s->flags & BSF_SECTION_SYM) == 0)
|
||
relent->sym_ptr_ptr = ps;
|
||
else
|
||
relent->sym_ptr_ptr = s->section->symbol_ptr_ptr;
|
||
}
|
||
|
||
relent->addend = rela.r_addend;
|
||
|
||
BFD_ASSERT (ELF64_R_TYPE_ID (rela.r_info) < (unsigned int) R_SPARC_max_std);
|
||
if (ELF64_R_TYPE_ID (rela.r_info) == R_SPARC_OLO10)
|
||
{
|
||
relent->howto = &sparc64_elf_howto_table[R_SPARC_LO10];
|
||
relent[1].address = relent->address;
|
||
relent++;
|
||
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
||
relent->addend = ELF64_R_TYPE_DATA (rela.r_info);
|
||
relent->howto = &sparc64_elf_howto_table[R_SPARC_13];
|
||
}
|
||
else
|
||
relent->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (rela.r_info)];
|
||
}
|
||
|
||
canon_reloc_count (asect) += relent - relents;
|
||
|
||
if (allocated != NULL)
|
||
free (allocated);
|
||
|
||
return TRUE;
|
||
|
||
error_return:
|
||
if (allocated != NULL)
|
||
free (allocated);
|
||
return FALSE;
|
||
}
|
||
|
||
/* Read in and swap the external relocs. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_slurp_reloc_table (abfd, asect, symbols, dynamic)
|
||
bfd *abfd;
|
||
asection *asect;
|
||
asymbol **symbols;
|
||
bfd_boolean dynamic;
|
||
{
|
||
struct bfd_elf_section_data * const d = elf_section_data (asect);
|
||
Elf_Internal_Shdr *rel_hdr;
|
||
Elf_Internal_Shdr *rel_hdr2;
|
||
bfd_size_type amt;
|
||
|
||
if (asect->relocation != NULL)
|
||
return TRUE;
|
||
|
||
if (! dynamic)
|
||
{
|
||
if ((asect->flags & SEC_RELOC) == 0
|
||
|| asect->reloc_count == 0)
|
||
return TRUE;
|
||
|
||
rel_hdr = &d->rel_hdr;
|
||
rel_hdr2 = d->rel_hdr2;
|
||
|
||
BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset
|
||
|| (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset));
|
||
}
|
||
else
|
||
{
|
||
/* Note that ASECT->RELOC_COUNT tends not to be accurate in this
|
||
case because relocations against this section may use the
|
||
dynamic symbol table, and in that case bfd_section_from_shdr
|
||
in elf.c does not update the RELOC_COUNT. */
|
||
if (asect->_raw_size == 0)
|
||
return TRUE;
|
||
|
||
rel_hdr = &d->this_hdr;
|
||
asect->reloc_count = NUM_SHDR_ENTRIES (rel_hdr);
|
||
rel_hdr2 = NULL;
|
||
}
|
||
|
||
amt = asect->reloc_count;
|
||
amt *= 2 * sizeof (arelent);
|
||
asect->relocation = (arelent *) bfd_alloc (abfd, amt);
|
||
if (asect->relocation == NULL)
|
||
return FALSE;
|
||
|
||
/* The sparc64_elf_slurp_one_reloc_table routine increments
|
||
canon_reloc_count. */
|
||
canon_reloc_count (asect) = 0;
|
||
|
||
if (!sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols,
|
||
dynamic))
|
||
return FALSE;
|
||
|
||
if (rel_hdr2
|
||
&& !sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr2, symbols,
|
||
dynamic))
|
||
return FALSE;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Canonicalize the relocs. */
|
||
|
||
static long
|
||
sparc64_elf_canonicalize_reloc (abfd, section, relptr, symbols)
|
||
bfd *abfd;
|
||
sec_ptr section;
|
||
arelent **relptr;
|
||
asymbol **symbols;
|
||
{
|
||
arelent *tblptr;
|
||
unsigned int i;
|
||
struct elf_backend_data *bed = get_elf_backend_data (abfd);
|
||
|
||
if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE))
|
||
return -1;
|
||
|
||
tblptr = section->relocation;
|
||
for (i = 0; i < canon_reloc_count (section); i++)
|
||
*relptr++ = tblptr++;
|
||
|
||
*relptr = NULL;
|
||
|
||
return canon_reloc_count (section);
|
||
}
|
||
|
||
|
||
/* Canonicalize the dynamic relocation entries. Note that we return
|
||
the dynamic relocations as a single block, although they are
|
||
actually associated with particular sections; the interface, which
|
||
was designed for SunOS style shared libraries, expects that there
|
||
is only one set of dynamic relocs. Any section that was actually
|
||
installed in the BFD, and has type SHT_REL or SHT_RELA, and uses
|
||
the dynamic symbol table, is considered to be a dynamic reloc
|
||
section. */
|
||
|
||
static long
|
||
sparc64_elf_canonicalize_dynamic_reloc (abfd, storage, syms)
|
||
bfd *abfd;
|
||
arelent **storage;
|
||
asymbol **syms;
|
||
{
|
||
asection *s;
|
||
long ret;
|
||
|
||
if (elf_dynsymtab (abfd) == 0)
|
||
{
|
||
bfd_set_error (bfd_error_invalid_operation);
|
||
return -1;
|
||
}
|
||
|
||
ret = 0;
|
||
for (s = abfd->sections; s != NULL; s = s->next)
|
||
{
|
||
if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd)
|
||
&& (elf_section_data (s)->this_hdr.sh_type == SHT_RELA))
|
||
{
|
||
arelent *p;
|
||
long count, i;
|
||
|
||
if (! sparc64_elf_slurp_reloc_table (abfd, s, syms, TRUE))
|
||
return -1;
|
||
count = canon_reloc_count (s);
|
||
p = s->relocation;
|
||
for (i = 0; i < count; i++)
|
||
*storage++ = p++;
|
||
ret += count;
|
||
}
|
||
}
|
||
|
||
*storage = NULL;
|
||
|
||
return ret;
|
||
}
|
||
|
||
/* Write out the relocs. */
|
||
|
||
static void
|
||
sparc64_elf_write_relocs (abfd, sec, data)
|
||
bfd *abfd;
|
||
asection *sec;
|
||
PTR data;
|
||
{
|
||
bfd_boolean *failedp = (bfd_boolean *) data;
|
||
Elf_Internal_Shdr *rela_hdr;
|
||
Elf64_External_Rela *outbound_relocas, *src_rela;
|
||
unsigned int idx, count;
|
||
asymbol *last_sym = 0;
|
||
int last_sym_idx = 0;
|
||
|
||
/* If we have already failed, don't do anything. */
|
||
if (*failedp)
|
||
return;
|
||
|
||
if ((sec->flags & SEC_RELOC) == 0)
|
||
return;
|
||
|
||
/* The linker backend writes the relocs out itself, and sets the
|
||
reloc_count field to zero to inhibit writing them here. Also,
|
||
sometimes the SEC_RELOC flag gets set even when there aren't any
|
||
relocs. */
|
||
if (sec->reloc_count == 0)
|
||
return;
|
||
|
||
/* We can combine two relocs that refer to the same address
|
||
into R_SPARC_OLO10 if first one is R_SPARC_LO10 and the
|
||
latter is R_SPARC_13 with no associated symbol. */
|
||
count = 0;
|
||
for (idx = 0; idx < sec->reloc_count; idx++)
|
||
{
|
||
bfd_vma addr;
|
||
|
||
++count;
|
||
|
||
addr = sec->orelocation[idx]->address;
|
||
if (sec->orelocation[idx]->howto->type == R_SPARC_LO10
|
||
&& idx < sec->reloc_count - 1)
|
||
{
|
||
arelent *r = sec->orelocation[idx + 1];
|
||
|
||
if (r->howto->type == R_SPARC_13
|
||
&& r->address == addr
|
||
&& bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
|
||
&& (*r->sym_ptr_ptr)->value == 0)
|
||
++idx;
|
||
}
|
||
}
|
||
|
||
rela_hdr = &elf_section_data (sec)->rel_hdr;
|
||
|
||
rela_hdr->sh_size = rela_hdr->sh_entsize * count;
|
||
rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size);
|
||
if (rela_hdr->contents == NULL)
|
||
{
|
||
*failedp = TRUE;
|
||
return;
|
||
}
|
||
|
||
/* Figure out whether the relocations are RELA or REL relocations. */
|
||
if (rela_hdr->sh_type != SHT_RELA)
|
||
abort ();
|
||
|
||
/* orelocation has the data, reloc_count has the count... */
|
||
outbound_relocas = (Elf64_External_Rela *) rela_hdr->contents;
|
||
src_rela = outbound_relocas;
|
||
|
||
for (idx = 0; idx < sec->reloc_count; idx++)
|
||
{
|
||
Elf_Internal_Rela dst_rela;
|
||
arelent *ptr;
|
||
asymbol *sym;
|
||
int n;
|
||
|
||
ptr = sec->orelocation[idx];
|
||
|
||
/* The address of an ELF reloc is section relative for an object
|
||
file, and absolute for an executable file or shared library.
|
||
The address of a BFD reloc is always section relative. */
|
||
if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
|
||
dst_rela.r_offset = ptr->address;
|
||
else
|
||
dst_rela.r_offset = ptr->address + sec->vma;
|
||
|
||
sym = *ptr->sym_ptr_ptr;
|
||
if (sym == last_sym)
|
||
n = last_sym_idx;
|
||
else if (bfd_is_abs_section (sym->section) && sym->value == 0)
|
||
n = STN_UNDEF;
|
||
else
|
||
{
|
||
last_sym = sym;
|
||
n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
|
||
if (n < 0)
|
||
{
|
||
*failedp = TRUE;
|
||
return;
|
||
}
|
||
last_sym_idx = n;
|
||
}
|
||
|
||
if ((*ptr->sym_ptr_ptr)->the_bfd != NULL
|
||
&& (*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
|
||
&& ! _bfd_elf_validate_reloc (abfd, ptr))
|
||
{
|
||
*failedp = TRUE;
|
||
return;
|
||
}
|
||
|
||
if (ptr->howto->type == R_SPARC_LO10
|
||
&& idx < sec->reloc_count - 1)
|
||
{
|
||
arelent *r = sec->orelocation[idx + 1];
|
||
|
||
if (r->howto->type == R_SPARC_13
|
||
&& r->address == ptr->address
|
||
&& bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
|
||
&& (*r->sym_ptr_ptr)->value == 0)
|
||
{
|
||
idx++;
|
||
dst_rela.r_info
|
||
= ELF64_R_INFO (n, ELF64_R_TYPE_INFO (r->addend,
|
||
R_SPARC_OLO10));
|
||
}
|
||
else
|
||
dst_rela.r_info = ELF64_R_INFO (n, R_SPARC_LO10);
|
||
}
|
||
else
|
||
dst_rela.r_info = ELF64_R_INFO (n, ptr->howto->type);
|
||
|
||
dst_rela.r_addend = ptr->addend;
|
||
bfd_elf64_swap_reloca_out (abfd, &dst_rela, (bfd_byte *) src_rela);
|
||
++src_rela;
|
||
}
|
||
}
|
||
|
||
/* Sparc64 ELF linker hash table. */
|
||
|
||
struct sparc64_elf_app_reg
|
||
{
|
||
unsigned char bind;
|
||
unsigned short shndx;
|
||
bfd *abfd;
|
||
char *name;
|
||
};
|
||
|
||
struct sparc64_elf_link_hash_table
|
||
{
|
||
struct elf_link_hash_table root;
|
||
|
||
struct sparc64_elf_app_reg app_regs [4];
|
||
};
|
||
|
||
/* Get the Sparc64 ELF linker hash table from a link_info structure. */
|
||
|
||
#define sparc64_elf_hash_table(p) \
|
||
((struct sparc64_elf_link_hash_table *) ((p)->hash))
|
||
|
||
/* Create a Sparc64 ELF linker hash table. */
|
||
|
||
static struct bfd_link_hash_table *
|
||
sparc64_elf_bfd_link_hash_table_create (abfd)
|
||
bfd *abfd;
|
||
{
|
||
struct sparc64_elf_link_hash_table *ret;
|
||
bfd_size_type amt = sizeof (struct sparc64_elf_link_hash_table);
|
||
|
||
ret = (struct sparc64_elf_link_hash_table *) bfd_zmalloc (amt);
|
||
if (ret == (struct sparc64_elf_link_hash_table *) NULL)
|
||
return NULL;
|
||
|
||
if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
|
||
_bfd_elf_link_hash_newfunc))
|
||
{
|
||
free (ret);
|
||
return NULL;
|
||
}
|
||
|
||
return &ret->root.root;
|
||
}
|
||
|
||
/* 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 (abfd,
|
||
reloc_entry,
|
||
symbol,
|
||
data,
|
||
input_section,
|
||
output_bfd,
|
||
prelocation,
|
||
pinsn)
|
||
bfd *abfd;
|
||
arelent *reloc_entry;
|
||
asymbol *symbol;
|
||
PTR 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 > input_section->_cooked_size)
|
||
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 (abfd,
|
||
reloc_entry,
|
||
symbol,
|
||
data,
|
||
input_section,
|
||
output_bfd,
|
||
error_message)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
arelent *reloc_entry ATTRIBUTE_UNUSED;
|
||
asymbol *symbol ATTRIBUTE_UNUSED;
|
||
PTR 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 (abfd, reloc_entry, symbol, data, input_section,
|
||
output_bfd, error_message)
|
||
bfd *abfd;
|
||
arelent *reloc_entry;
|
||
asymbol *symbol;
|
||
PTR 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 HIX22 reloc. */
|
||
|
||
static bfd_reloc_status_type
|
||
sparc_elf_hix22_reloc (abfd,
|
||
reloc_entry,
|
||
symbol,
|
||
data,
|
||
input_section,
|
||
output_bfd,
|
||
error_message)
|
||
bfd *abfd;
|
||
arelent *reloc_entry;
|
||
asymbol *symbol;
|
||
PTR 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 (abfd,
|
||
reloc_entry,
|
||
symbol,
|
||
data,
|
||
input_section,
|
||
output_bfd,
|
||
error_message)
|
||
bfd *abfd;
|
||
arelent *reloc_entry;
|
||
asymbol *symbol;
|
||
PTR 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;
|
||
}
|
||
|
||
/* PLT/GOT stuff */
|
||
|
||
/* Both the headers and the entries are icache aligned. */
|
||
#define PLT_ENTRY_SIZE 32
|
||
#define PLT_HEADER_SIZE (4 * PLT_ENTRY_SIZE)
|
||
#define LARGE_PLT_THRESHOLD 32768
|
||
#define GOT_RESERVED_ENTRIES 1
|
||
|
||
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
|
||
|
||
/* Fill in the .plt section. */
|
||
|
||
static void
|
||
sparc64_elf_build_plt (output_bfd, contents, nentries)
|
||
bfd *output_bfd;
|
||
unsigned char *contents;
|
||
int nentries;
|
||
{
|
||
const unsigned int nop = 0x01000000;
|
||
int i, j;
|
||
|
||
/* The first four entries are reserved, and are initially undefined.
|
||
We fill them with `illtrap 0' to force ld.so to do something. */
|
||
|
||
for (i = 0; i < PLT_HEADER_SIZE/4; ++i)
|
||
bfd_put_32 (output_bfd, (bfd_vma) 0, contents+i*4);
|
||
|
||
/* The first 32768 entries are close enough to plt1 to get there via
|
||
a straight branch. */
|
||
|
||
for (i = 4; i < LARGE_PLT_THRESHOLD && i < nentries; ++i)
|
||
{
|
||
unsigned char *entry = contents + i * PLT_ENTRY_SIZE;
|
||
unsigned int sethi, ba;
|
||
|
||
/* sethi (. - plt0), %g1 */
|
||
sethi = 0x03000000 | (i * PLT_ENTRY_SIZE);
|
||
|
||
/* ba,a,pt %xcc, plt1 */
|
||
ba = 0x30680000 | (((contents+PLT_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);
|
||
}
|
||
|
||
/* Now the tricky bit. Entries 32768 and higher are grouped in blocks of
|
||
160: 160 entries and 160 pointers. This is to separate code from data,
|
||
which is much friendlier on the cache. */
|
||
|
||
for (; i < nentries; i += 160)
|
||
{
|
||
int block = (i + 160 <= nentries ? 160 : nentries - i);
|
||
for (j = 0; j < block; ++j)
|
||
{
|
||
unsigned char *entry, *ptr;
|
||
unsigned int ldx;
|
||
|
||
entry = contents + i*PLT_ENTRY_SIZE + j*4*6;
|
||
ptr = contents + i*PLT_ENTRY_SIZE + block*4*6 + j*8;
|
||
|
||
/* ldx [%o7 + ptr - (entry+4)], %g1 */
|
||
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) 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) (contents - (entry + 4)), ptr);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Return the offset of a particular plt entry within the .plt section. */
|
||
|
||
static bfd_vma
|
||
sparc64_elf_plt_entry_offset (index)
|
||
bfd_vma index;
|
||
{
|
||
bfd_vma block, ofs;
|
||
|
||
if (index < LARGE_PLT_THRESHOLD)
|
||
return index * PLT_ENTRY_SIZE;
|
||
|
||
/* See above for details. */
|
||
|
||
block = (index - LARGE_PLT_THRESHOLD) / 160;
|
||
ofs = (index - LARGE_PLT_THRESHOLD) % 160;
|
||
|
||
return (LARGE_PLT_THRESHOLD + block * 160) * PLT_ENTRY_SIZE + ofs * 6 * 4;
|
||
}
|
||
|
||
static bfd_vma
|
||
sparc64_elf_plt_ptr_offset (index, max)
|
||
bfd_vma index;
|
||
bfd_vma max;
|
||
{
|
||
bfd_vma block, ofs, last;
|
||
|
||
BFD_ASSERT(index >= LARGE_PLT_THRESHOLD);
|
||
|
||
/* See above for details. */
|
||
|
||
block = (((index - LARGE_PLT_THRESHOLD) / 160) * 160) + LARGE_PLT_THRESHOLD;
|
||
ofs = index - block;
|
||
if (block + 160 > max)
|
||
last = (max - LARGE_PLT_THRESHOLD) % 160;
|
||
else
|
||
last = 160;
|
||
|
||
return (block * PLT_ENTRY_SIZE
|
||
+ last * 6*4
|
||
+ ofs * 8);
|
||
}
|
||
|
||
/* Look through the relocs for a section during the first phase, and
|
||
allocate space in the global offset table or procedure linkage
|
||
table. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_check_relocs (abfd, info, sec, relocs)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
asection *sec;
|
||
const Elf_Internal_Rela *relocs;
|
||
{
|
||
bfd *dynobj;
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
bfd_vma *local_got_offsets;
|
||
const Elf_Internal_Rela *rel;
|
||
const Elf_Internal_Rela *rel_end;
|
||
asection *sgot;
|
||
asection *srelgot;
|
||
asection *sreloc;
|
||
|
||
if (info->relocateable || !(sec->flags & SEC_ALLOC))
|
||
return TRUE;
|
||
|
||
dynobj = elf_hash_table (info)->dynobj;
|
||
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
||
sym_hashes = elf_sym_hashes (abfd);
|
||
local_got_offsets = elf_local_got_offsets (abfd);
|
||
|
||
sgot = NULL;
|
||
srelgot = NULL;
|
||
sreloc = NULL;
|
||
|
||
rel_end = relocs + NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr);
|
||
for (rel = relocs; rel < rel_end; rel++)
|
||
{
|
||
unsigned long r_symndx;
|
||
struct elf_link_hash_entry *h;
|
||
|
||
r_symndx = ELF64_R_SYM (rel->r_info);
|
||
if (r_symndx < symtab_hdr->sh_info)
|
||
h = NULL;
|
||
else
|
||
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
||
|
||
switch (ELF64_R_TYPE_ID (rel->r_info))
|
||
{
|
||
case R_SPARC_GOT10:
|
||
case R_SPARC_GOT13:
|
||
case R_SPARC_GOT22:
|
||
/* This symbol requires a global offset table entry. */
|
||
|
||
if (dynobj == NULL)
|
||
{
|
||
/* Create the .got section. */
|
||
elf_hash_table (info)->dynobj = dynobj = abfd;
|
||
if (! _bfd_elf_create_got_section (dynobj, info))
|
||
return FALSE;
|
||
}
|
||
|
||
if (sgot == NULL)
|
||
{
|
||
sgot = bfd_get_section_by_name (dynobj, ".got");
|
||
BFD_ASSERT (sgot != NULL);
|
||
}
|
||
|
||
if (srelgot == NULL && (h != NULL || info->shared))
|
||
{
|
||
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
||
if (srelgot == NULL)
|
||
{
|
||
srelgot = bfd_make_section (dynobj, ".rela.got");
|
||
if (srelgot == NULL
|
||
|| ! bfd_set_section_flags (dynobj, srelgot,
|
||
(SEC_ALLOC
|
||
| SEC_LOAD
|
||
| SEC_HAS_CONTENTS
|
||
| SEC_IN_MEMORY
|
||
| SEC_LINKER_CREATED
|
||
| SEC_READONLY))
|
||
|| ! bfd_set_section_alignment (dynobj, srelgot, 3))
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
if (h != NULL)
|
||
{
|
||
if (h->got.offset != (bfd_vma) -1)
|
||
{
|
||
/* We have already allocated space in the .got. */
|
||
break;
|
||
}
|
||
h->got.offset = sgot->_raw_size;
|
||
|
||
/* Make sure this symbol is output as a dynamic symbol. */
|
||
if (h->dynindx == -1)
|
||
{
|
||
if (! bfd_elf64_link_record_dynamic_symbol (info, h))
|
||
return FALSE;
|
||
}
|
||
|
||
srelgot->_raw_size += sizeof (Elf64_External_Rela);
|
||
}
|
||
else
|
||
{
|
||
/* This is a global offset table entry for a local
|
||
symbol. */
|
||
if (local_got_offsets == NULL)
|
||
{
|
||
bfd_size_type size;
|
||
register unsigned int i;
|
||
|
||
size = symtab_hdr->sh_info;
|
||
size *= sizeof (bfd_vma);
|
||
local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
|
||
if (local_got_offsets == NULL)
|
||
return FALSE;
|
||
elf_local_got_offsets (abfd) = local_got_offsets;
|
||
for (i = 0; i < symtab_hdr->sh_info; i++)
|
||
local_got_offsets[i] = (bfd_vma) -1;
|
||
}
|
||
if (local_got_offsets[r_symndx] != (bfd_vma) -1)
|
||
{
|
||
/* We have already allocated space in the .got. */
|
||
break;
|
||
}
|
||
local_got_offsets[r_symndx] = sgot->_raw_size;
|
||
|
||
if (info->shared)
|
||
{
|
||
/* If we are generating a shared object, we need to
|
||
output a R_SPARC_RELATIVE reloc so that the
|
||
dynamic linker can adjust this GOT entry. */
|
||
srelgot->_raw_size += sizeof (Elf64_External_Rela);
|
||
}
|
||
}
|
||
|
||
sgot->_raw_size += 8;
|
||
|
||
#if 0
|
||
/* Doesn't work for 64-bit -fPIC, since sethi/or builds
|
||
unsigned numbers. If we permit ourselves to modify
|
||
code so we get sethi/xor, this could work.
|
||
Question: do we consider conditionally re-enabling
|
||
this for -fpic, once we know about object code models? */
|
||
/* 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. */
|
||
if (sgot->_raw_size >= 0x1000
|
||
&& elf_hash_table (info)->hgot->root.u.def.value == 0)
|
||
elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
|
||
#endif
|
||
|
||
break;
|
||
|
||
case R_SPARC_WPLT30:
|
||
case R_SPARC_PLT32:
|
||
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)
|
||
{
|
||
/* 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;
|
||
}
|
||
|
||
/* Make sure this symbol is output as a dynamic symbol. */
|
||
if (h->dynindx == -1)
|
||
{
|
||
if (! bfd_elf64_link_record_dynamic_symbol (info, h))
|
||
return FALSE;
|
||
}
|
||
|
||
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
|
||
if (ELF64_R_TYPE_ID (rel->r_info) != R_SPARC_PLT32
|
||
&& ELF64_R_TYPE_ID (rel->r_info) != R_SPARC_PLT64)
|
||
break;
|
||
/* Fall through. */
|
||
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:
|
||
if (h == NULL)
|
||
break;
|
||
/* Fall through. */
|
||
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_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_UA64:
|
||
case R_SPARC_UA16:
|
||
/* 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.
|
||
|
||
But don't do this for debugging sections -- this shows up
|
||
with DWARF2 -- first because they are not loaded, and
|
||
second because DWARF sez the debug info is not to be
|
||
biased by the load address. */
|
||
if (info->shared && (sec->flags & SEC_ALLOC))
|
||
{
|
||
if (sreloc == NULL)
|
||
{
|
||
const char *name;
|
||
|
||
name = (bfd_elf_string_from_elf_section
|
||
(abfd,
|
||
elf_elfheader (abfd)->e_shstrndx,
|
||
elf_section_data (sec)->rel_hdr.sh_name));
|
||
if (name == NULL)
|
||
return FALSE;
|
||
|
||
BFD_ASSERT (strncmp (name, ".rela", 5) == 0
|
||
&& strcmp (bfd_get_section_name (abfd, sec),
|
||
name + 5) == 0);
|
||
|
||
sreloc = bfd_get_section_by_name (dynobj, name);
|
||
if (sreloc == NULL)
|
||
{
|
||
flagword flags;
|
||
|
||
sreloc = bfd_make_section (dynobj, name);
|
||
flags = (SEC_HAS_CONTENTS | SEC_READONLY
|
||
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
|
||
if ((sec->flags & SEC_ALLOC) != 0)
|
||
flags |= SEC_ALLOC | SEC_LOAD;
|
||
if (sreloc == NULL
|
||
|| ! bfd_set_section_flags (dynobj, sreloc, flags)
|
||
|| ! bfd_set_section_alignment (dynobj, sreloc, 3))
|
||
return FALSE;
|
||
}
|
||
if (sec->flags & SEC_READONLY)
|
||
info->flags |= DF_TEXTREL;
|
||
}
|
||
|
||
sreloc->_raw_size += sizeof (Elf64_External_Rela);
|
||
}
|
||
break;
|
||
|
||
case R_SPARC_REGISTER:
|
||
/* Nothing to do. */
|
||
break;
|
||
|
||
default:
|
||
(*_bfd_error_handler) (_("%s: check_relocs: unhandled reloc type %d"),
|
||
bfd_archive_filename (abfd),
|
||
ELF64_R_TYPE_ID (rel->r_info));
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Hook called by the linker routine which adds symbols from an object
|
||
file. We use it for STT_REGISTER symbols. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
const Elf_Internal_Sym *sym;
|
||
const char **namep;
|
||
flagword *flagsp ATTRIBUTE_UNUSED;
|
||
asection **secp ATTRIBUTE_UNUSED;
|
||
bfd_vma *valp ATTRIBUTE_UNUSED;
|
||
{
|
||
static const char *const stt_types[] = { "NOTYPE", "OBJECT", "FUNCTION" };
|
||
|
||
if (ELF_ST_TYPE (sym->st_info) == STT_REGISTER)
|
||
{
|
||
int reg;
|
||
struct sparc64_elf_app_reg *p;
|
||
|
||
reg = (int)sym->st_value;
|
||
switch (reg & ~1)
|
||
{
|
||
case 2: reg -= 2; break;
|
||
case 6: reg -= 4; break;
|
||
default:
|
||
(*_bfd_error_handler)
|
||
(_("%s: Only registers %%g[2367] can be declared using STT_REGISTER"),
|
||
bfd_archive_filename (abfd));
|
||
return FALSE;
|
||
}
|
||
|
||
if (info->hash->creator != abfd->xvec
|
||
|| (abfd->flags & DYNAMIC) != 0)
|
||
{
|
||
/* STT_REGISTER only works when linking an elf64_sparc object.
|
||
If STT_REGISTER comes from a dynamic object, don't put it into
|
||
the output bfd. The dynamic linker will recheck it. */
|
||
*namep = NULL;
|
||
return TRUE;
|
||
}
|
||
|
||
p = sparc64_elf_hash_table(info)->app_regs + reg;
|
||
|
||
if (p->name != NULL && strcmp (p->name, *namep))
|
||
{
|
||
(*_bfd_error_handler)
|
||
(_("Register %%g%d used incompatibly: %s in %s, previously %s in %s"),
|
||
(int) sym->st_value,
|
||
**namep ? *namep : "#scratch", bfd_archive_filename (abfd),
|
||
*p->name ? p->name : "#scratch", bfd_archive_filename (p->abfd));
|
||
return FALSE;
|
||
}
|
||
|
||
if (p->name == NULL)
|
||
{
|
||
if (**namep)
|
||
{
|
||
struct elf_link_hash_entry *h;
|
||
|
||
h = (struct elf_link_hash_entry *)
|
||
bfd_link_hash_lookup (info->hash, *namep, FALSE, FALSE, FALSE);
|
||
|
||
if (h != NULL)
|
||
{
|
||
unsigned char type = h->type;
|
||
|
||
if (type > STT_FUNC)
|
||
type = 0;
|
||
(*_bfd_error_handler)
|
||
(_("Symbol `%s' has differing types: REGISTER in %s, previously %s in %s"),
|
||
*namep, bfd_archive_filename (abfd),
|
||
stt_types[type], bfd_archive_filename (p->abfd));
|
||
return FALSE;
|
||
}
|
||
|
||
p->name = bfd_hash_allocate (&info->hash->table,
|
||
strlen (*namep) + 1);
|
||
if (!p->name)
|
||
return FALSE;
|
||
|
||
strcpy (p->name, *namep);
|
||
}
|
||
else
|
||
p->name = "";
|
||
p->bind = ELF_ST_BIND (sym->st_info);
|
||
p->abfd = abfd;
|
||
p->shndx = sym->st_shndx;
|
||
}
|
||
else
|
||
{
|
||
if (p->bind == STB_WEAK
|
||
&& ELF_ST_BIND (sym->st_info) == STB_GLOBAL)
|
||
{
|
||
p->bind = STB_GLOBAL;
|
||
p->abfd = abfd;
|
||
}
|
||
}
|
||
*namep = NULL;
|
||
return TRUE;
|
||
}
|
||
else if (*namep && **namep
|
||
&& info->hash->creator == abfd->xvec)
|
||
{
|
||
int i;
|
||
struct sparc64_elf_app_reg *p;
|
||
|
||
p = sparc64_elf_hash_table(info)->app_regs;
|
||
for (i = 0; i < 4; i++, p++)
|
||
if (p->name != NULL && ! strcmp (p->name, *namep))
|
||
{
|
||
unsigned char type = ELF_ST_TYPE (sym->st_info);
|
||
|
||
if (type > STT_FUNC)
|
||
type = 0;
|
||
(*_bfd_error_handler)
|
||
(_("Symbol `%s' has differing types: %s in %s, previously REGISTER in %s"),
|
||
*namep, stt_types[type], bfd_archive_filename (abfd),
|
||
bfd_archive_filename (p->abfd));
|
||
return FALSE;
|
||
}
|
||
}
|
||
return TRUE;
|
||
}
|
||
|
||
/* This function takes care of emiting STT_REGISTER symbols
|
||
which we cannot easily keep in the symbol hash table. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_output_arch_syms (output_bfd, info, finfo, func)
|
||
bfd *output_bfd ATTRIBUTE_UNUSED;
|
||
struct bfd_link_info *info;
|
||
PTR finfo;
|
||
bfd_boolean (*func)
|
||
PARAMS ((PTR, const char *, Elf_Internal_Sym *, asection *));
|
||
{
|
||
int reg;
|
||
struct sparc64_elf_app_reg *app_regs =
|
||
sparc64_elf_hash_table(info)->app_regs;
|
||
Elf_Internal_Sym sym;
|
||
|
||
/* We arranged in size_dynamic_sections to put the STT_REGISTER entries
|
||
at the end of the dynlocal list, so they came at the end of the local
|
||
symbols in the symtab. Except that they aren't STB_LOCAL, so we need
|
||
to back up symtab->sh_info. */
|
||
if (elf_hash_table (info)->dynlocal)
|
||
{
|
||
bfd * dynobj = elf_hash_table (info)->dynobj;
|
||
asection *dynsymsec = bfd_get_section_by_name (dynobj, ".dynsym");
|
||
struct elf_link_local_dynamic_entry *e;
|
||
|
||
for (e = elf_hash_table (info)->dynlocal; e ; e = e->next)
|
||
if (e->input_indx == -1)
|
||
break;
|
||
if (e)
|
||
{
|
||
elf_section_data (dynsymsec->output_section)->this_hdr.sh_info
|
||
= e->dynindx;
|
||
}
|
||
}
|
||
|
||
if (info->strip == strip_all)
|
||
return TRUE;
|
||
|
||
for (reg = 0; reg < 4; reg++)
|
||
if (app_regs [reg].name != NULL)
|
||
{
|
||
if (info->strip == strip_some
|
||
&& bfd_hash_lookup (info->keep_hash,
|
||
app_regs [reg].name,
|
||
FALSE, FALSE) == NULL)
|
||
continue;
|
||
|
||
sym.st_value = reg < 2 ? reg + 2 : reg + 4;
|
||
sym.st_size = 0;
|
||
sym.st_other = 0;
|
||
sym.st_info = ELF_ST_INFO (app_regs [reg].bind, STT_REGISTER);
|
||
sym.st_shndx = app_regs [reg].shndx;
|
||
if (! (*func) (finfo, app_regs [reg].name, &sym,
|
||
sym.st_shndx == SHN_ABS
|
||
? bfd_abs_section_ptr : bfd_und_section_ptr))
|
||
return FALSE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static int
|
||
sparc64_elf_get_symbol_type (elf_sym, type)
|
||
Elf_Internal_Sym * elf_sym;
|
||
int type;
|
||
{
|
||
if (ELF_ST_TYPE (elf_sym->st_info) == STT_REGISTER)
|
||
return STT_REGISTER;
|
||
else
|
||
return type;
|
||
}
|
||
|
||
/* A STB_GLOBAL,STT_REGISTER symbol should be BSF_GLOBAL
|
||
even in SHN_UNDEF section. */
|
||
|
||
static void
|
||
sparc64_elf_symbol_processing (abfd, asym)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
asymbol *asym;
|
||
{
|
||
elf_symbol_type *elfsym;
|
||
|
||
elfsym = (elf_symbol_type *) asym;
|
||
if (elfsym->internal_elf_sym.st_info
|
||
== ELF_ST_INFO (STB_GLOBAL, STT_REGISTER))
|
||
{
|
||
asym->flags |= BSF_GLOBAL;
|
||
}
|
||
}
|
||
|
||
/* 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. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_adjust_dynamic_symbol (info, h)
|
||
struct bfd_link_info *info;
|
||
struct elf_link_hash_entry *h;
|
||
{
|
||
bfd *dynobj;
|
||
asection *s;
|
||
unsigned int power_of_two;
|
||
|
||
dynobj = elf_hash_table (info)->dynobj;
|
||
|
||
/* Make sure we know what is going on here. */
|
||
BFD_ASSERT (dynobj != NULL
|
||
&& ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
|
||
|| h->weakdef != NULL
|
||
|| ((h->elf_link_hash_flags
|
||
& ELF_LINK_HASH_DEF_DYNAMIC) != 0
|
||
&& (h->elf_link_hash_flags
|
||
& ELF_LINK_HASH_REF_REGULAR) != 0
|
||
&& (h->elf_link_hash_flags
|
||
& ELF_LINK_HASH_DEF_REGULAR) == 0)));
|
||
|
||
/* 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->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0
|
||
|| (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 (! elf_hash_table (info)->dynamic_sections_created)
|
||
{
|
||
/* This case can occur if we saw a WPLT30 reloc in an input
|
||
file, but none of the input files were dynamic objects.
|
||
In such a case, we don't actually need to build a
|
||
procedure linkage table, and we can just do a WDISP30
|
||
reloc instead. */
|
||
BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
|
||
return TRUE;
|
||
}
|
||
|
||
s = bfd_get_section_by_name (dynobj, ".plt");
|
||
BFD_ASSERT (s != NULL);
|
||
|
||
/* The first four bit in .plt is reserved. */
|
||
if (s->_raw_size == 0)
|
||
s->_raw_size = PLT_HEADER_SIZE;
|
||
|
||
/* To simplify matters later, just store the plt index here. */
|
||
h->plt.offset = s->_raw_size / PLT_ENTRY_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->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
||
{
|
||
h->root.u.def.section = s;
|
||
h->root.u.def.value = sparc64_elf_plt_entry_offset (h->plt.offset);
|
||
}
|
||
|
||
/* Make room for this entry. */
|
||
s->_raw_size += PLT_ENTRY_SIZE;
|
||
|
||
/* We also need to make an entry in the .rela.plt section. */
|
||
|
||
s = bfd_get_section_by_name (dynobj, ".rela.plt");
|
||
BFD_ASSERT (s != NULL);
|
||
|
||
s->_raw_size += sizeof (Elf64_External_Rela);
|
||
|
||
/* The procedure linkage table size is bounded by the magnitude
|
||
of the offset we can describe in the entry. */
|
||
if (s->_raw_size >= (bfd_vma)1 << 32)
|
||
{
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return FALSE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* 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->weakdef != NULL)
|
||
{
|
||
BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
|
||
|| h->weakdef->root.type == bfd_link_hash_defweak);
|
||
h->root.u.def.section = h->weakdef->root.u.def.section;
|
||
h->root.u.def.value = h->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;
|
||
|
||
/* 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. */
|
||
|
||
s = bfd_get_section_by_name (dynobj, ".dynbss");
|
||
BFD_ASSERT (s != NULL);
|
||
|
||
/* 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)
|
||
{
|
||
asection *srel;
|
||
|
||
srel = bfd_get_section_by_name (dynobj, ".rela.bss");
|
||
BFD_ASSERT (srel != NULL);
|
||
srel->_raw_size += sizeof (Elf64_External_Rela);
|
||
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
|
||
}
|
||
|
||
/* We need to figure out the alignment required for this symbol. I
|
||
have no idea how ELF linkers handle this. 16-bytes is the size
|
||
of the largest type that requires hard alignment -- long double. */
|
||
power_of_two = bfd_log2 (h->size);
|
||
if (power_of_two > 4)
|
||
power_of_two = 4;
|
||
|
||
/* Apply the required alignment. */
|
||
s->_raw_size = BFD_ALIGN (s->_raw_size,
|
||
(bfd_size_type) (1 << power_of_two));
|
||
if (power_of_two > bfd_get_section_alignment (dynobj, s))
|
||
{
|
||
if (! bfd_set_section_alignment (dynobj, s, power_of_two))
|
||
return FALSE;
|
||
}
|
||
|
||
/* Define the symbol as being at this point in the section. */
|
||
h->root.u.def.section = s;
|
||
h->root.u.def.value = s->_raw_size;
|
||
|
||
/* Increment the section size to make room for the symbol. */
|
||
s->_raw_size += h->size;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Set the sizes of the dynamic sections. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_size_dynamic_sections (output_bfd, info)
|
||
bfd *output_bfd;
|
||
struct bfd_link_info *info;
|
||
{
|
||
bfd *dynobj;
|
||
asection *s;
|
||
bfd_boolean relplt;
|
||
|
||
dynobj = elf_hash_table (info)->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_section_by_name (dynobj, ".interp");
|
||
BFD_ASSERT (s != NULL);
|
||
s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
|
||
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* We may have created entries in the .rela.got section.
|
||
However, if we are not creating the dynamic sections, we will
|
||
not actually use these entries. Reset the size of .rela.got,
|
||
which will cause it to get stripped from the output file
|
||
below. */
|
||
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
||
if (s != NULL)
|
||
s->_raw_size = 0;
|
||
}
|
||
|
||
/* The check_relocs and adjust_dynamic_symbol entry points have
|
||
determined the sizes of the various dynamic sections. Allocate
|
||
memory for them. */
|
||
relplt = FALSE;
|
||
for (s = dynobj->sections; s != NULL; s = s->next)
|
||
{
|
||
const char *name;
|
||
bfd_boolean strip;
|
||
|
||
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
||
continue;
|
||
|
||
/* It's OK to base decisions on the section name, because none
|
||
of the dynobj section names depend upon the input files. */
|
||
name = bfd_get_section_name (dynobj, s);
|
||
|
||
strip = FALSE;
|
||
|
||
if (strncmp (name, ".rela", 5) == 0)
|
||
{
|
||
if (s->_raw_size == 0)
|
||
{
|
||
/* If we don't need this section, strip it from the
|
||
output file. This is to handle .rela.bss and
|
||
.rel.plt. We must create it in
|
||
create_dynamic_sections, because it 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. */
|
||
strip = TRUE;
|
||
}
|
||
else
|
||
{
|
||
if (strcmp (name, ".rela.plt") == 0)
|
||
relplt = TRUE;
|
||
|
||
/* We use the reloc_count field as a counter if we need
|
||
to copy relocs into the output file. */
|
||
s->reloc_count = 0;
|
||
}
|
||
}
|
||
else if (strcmp (name, ".plt") != 0
|
||
&& strncmp (name, ".got", 4) != 0)
|
||
{
|
||
/* It's not one of our sections, so don't allocate space. */
|
||
continue;
|
||
}
|
||
|
||
if (strip)
|
||
{
|
||
_bfd_strip_section_from_output (info, s);
|
||
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->_raw_size);
|
||
if (s->contents == NULL && s->_raw_size != 0)
|
||
return FALSE;
|
||
}
|
||
|
||
if (elf_hash_table (info)->dynamic_sections_created)
|
||
{
|
||
/* Add some entries to the .dynamic section. We fill in the
|
||
values later, in sparc64_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_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
|
||
|
||
int reg;
|
||
struct sparc64_elf_app_reg * app_regs;
|
||
struct elf_strtab_hash *dynstr;
|
||
struct elf_link_hash_table *eht = elf_hash_table (info);
|
||
|
||
if (info->executable)
|
||
{
|
||
if (!add_dynamic_entry (DT_DEBUG, 0))
|
||
return FALSE;
|
||
}
|
||
|
||
if (relplt)
|
||
{
|
||
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, sizeof (Elf64_External_Rela)))
|
||
return FALSE;
|
||
|
||
if (info->flags & DF_TEXTREL)
|
||
{
|
||
if (!add_dynamic_entry (DT_TEXTREL, 0))
|
||
return FALSE;
|
||
}
|
||
|
||
/* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
|
||
entries if needed. */
|
||
app_regs = sparc64_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->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++;
|
||
}
|
||
}
|
||
#undef add_dynamic_entry
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_new_section_hook (abfd, sec)
|
||
bfd *abfd;
|
||
asection *sec;
|
||
{
|
||
struct sparc64_elf_section_data *sdata;
|
||
bfd_size_type amt = sizeof (*sdata);
|
||
|
||
sdata = (struct sparc64_elf_section_data *) bfd_zalloc (abfd, amt);
|
||
if (sdata == NULL)
|
||
return FALSE;
|
||
sec->used_by_bfd = (PTR) sdata;
|
||
|
||
return _bfd_elf_new_section_hook (abfd, sec);
|
||
}
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_relax_section (abfd, section, link_info, again)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
asection *section ATTRIBUTE_UNUSED;
|
||
struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
|
||
bfd_boolean *again;
|
||
{
|
||
*again = FALSE;
|
||
sec_do_relax (section) = 1;
|
||
return TRUE;
|
||
}
|
||
|
||
/* This is the condition under which finish_dynamic_symbol will be called
|
||
from elflink.h. If elflink.h doesn't call our finish_dynamic_symbol
|
||
routine, we'll need to do something about initializing any .plt and
|
||
.got entries in relocate_section. */
|
||
#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
|
||
((DYN) \
|
||
&& ((INFO)->shared \
|
||
|| ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
|
||
&& ((H)->dynindx != -1 \
|
||
|| ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
|
||
|
||
/* Relocate a SPARC64 ELF section. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_relocate_section (output_bfd, info, input_bfd, input_section,
|
||
contents, relocs, local_syms, local_sections)
|
||
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;
|
||
{
|
||
bfd *dynobj;
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
bfd_vma *local_got_offsets;
|
||
bfd_vma got_base;
|
||
asection *sgot;
|
||
asection *splt;
|
||
asection *sreloc;
|
||
Elf_Internal_Rela *rel;
|
||
Elf_Internal_Rela *relend;
|
||
|
||
if (info->relocateable)
|
||
return TRUE;
|
||
|
||
dynobj = elf_hash_table (info)->dynobj;
|
||
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
||
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;
|
||
|
||
sgot = splt = sreloc = NULL;
|
||
|
||
rel = relocs;
|
||
relend = relocs + NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr);
|
||
for (; rel < relend; rel++)
|
||
{
|
||
int r_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 = ELF64_R_TYPE_ID (rel->r_info);
|
||
if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
|
||
{
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return FALSE;
|
||
}
|
||
howto = sparc64_elf_howto_table + r_type;
|
||
|
||
/* This is a final link. */
|
||
r_symndx = ELF64_R_SYM (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);
|
||
}
|
||
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;
|
||
|
||
relocation = 0;
|
||
if (h->root.type == bfd_link_hash_defined
|
||
|| h->root.type == bfd_link_hash_defweak)
|
||
{
|
||
sec = h->root.u.def.section;
|
||
if (sec->output_section == NULL)
|
||
/* Set a flag that will be cleared later if we find a
|
||
relocation value for this symbol. output_section
|
||
is typically NULL for symbols satisfied by a shared
|
||
library. */
|
||
unresolved_reloc = TRUE;
|
||
else
|
||
relocation = (h->root.u.def.value
|
||
+ sec->output_section->vma
|
||
+ sec->output_offset);
|
||
}
|
||
else if (h->root.type == bfd_link_hash_undefweak)
|
||
;
|
||
else if (info->shared
|
||
&& !info->no_undefined
|
||
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
|
||
;
|
||
else
|
||
{
|
||
if (! ((*info->callbacks->undefined_symbol)
|
||
(info, h->root.root.string, input_bfd,
|
||
input_section, rel->r_offset,
|
||
(!info->shared || info->no_undefined
|
||
|| ELF_ST_VISIBILITY (h->other)))))
|
||
return FALSE;
|
||
|
||
/* 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;
|
||
}
|
||
}
|
||
|
||
do_dynreloc:
|
||
/* When generating a shared object, these relocations are copied
|
||
into the output file to be resolved at run time. */
|
||
if (info->shared && r_symndx != 0 && (input_section->flags & SEC_ALLOC))
|
||
{
|
||
switch (r_type)
|
||
{
|
||
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_"))
|
||
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:
|
||
if (h == NULL)
|
||
break;
|
||
/* Fall through. */
|
||
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_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_UA64:
|
||
case R_SPARC_UA16:
|
||
{
|
||
Elf_Internal_Rela outrel;
|
||
bfd_byte *loc;
|
||
bfd_boolean skip, relocate;
|
||
|
||
if (sreloc == NULL)
|
||
{
|
||
const char *name =
|
||
(bfd_elf_string_from_elf_section
|
||
(input_bfd,
|
||
elf_elfheader (input_bfd)->e_shstrndx,
|
||
elf_section_data (input_section)->rel_hdr.sh_name));
|
||
|
||
if (name == NULL)
|
||
return FALSE;
|
||
|
||
BFD_ASSERT (strncmp (name, ".rela", 5) == 0
|
||
&& strcmp (bfd_get_section_name(input_bfd,
|
||
input_section),
|
||
name + 5) == 0);
|
||
|
||
sreloc = bfd_get_section_by_name (dynobj, name);
|
||
BFD_ASSERT (sreloc != NULL);
|
||
}
|
||
|
||
skip = FALSE;
|
||
relocate = 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 && ! is_plt
|
||
&& ((! info->symbolic && h->dynindx != -1)
|
||
|| (h->elf_link_hash_flags
|
||
& ELF_LINK_HASH_DEF_REGULAR) == 0))
|
||
{
|
||
BFD_ASSERT (h->dynindx != -1);
|
||
outrel.r_info
|
||
= ELF64_R_INFO (h->dynindx,
|
||
ELF64_R_TYPE_INFO (
|
||
ELF64_R_TYPE_DATA (rel->r_info),
|
||
r_type));
|
||
outrel.r_addend = rel->r_addend;
|
||
}
|
||
else
|
||
{
|
||
outrel.r_addend = relocation + rel->r_addend;
|
||
if (r_type == R_SPARC_64)
|
||
outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE);
|
||
else
|
||
{
|
||
long indx;
|
||
|
||
if (is_plt)
|
||
sec = splt;
|
||
else if (h == NULL)
|
||
sec = local_sections[r_symndx];
|
||
else
|
||
{
|
||
BFD_ASSERT (h->root.type == bfd_link_hash_defined
|
||
|| (h->root.type
|
||
== bfd_link_hash_defweak));
|
||
sec = h->root.u.def.section;
|
||
}
|
||
if (sec != NULL && 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;
|
||
|
||
osec = sec->output_section;
|
||
indx = elf_section_data (osec)->dynindx;
|
||
|
||
/* We are turning this relocation into one
|
||
against a section symbol, so subtract out
|
||
the output section's address but not the
|
||
offset of the input section in the output
|
||
section. */
|
||
outrel.r_addend -= osec->vma;
|
||
|
||
/* FIXME: we really should be able to link non-pic
|
||
shared libraries. */
|
||
if (indx == 0)
|
||
{
|
||
BFD_FAIL ();
|
||
(*_bfd_error_handler)
|
||
(_("%s: probably compiled without -fPIC?"),
|
||
bfd_archive_filename (input_bfd));
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
outrel.r_info
|
||
= ELF64_R_INFO (indx,
|
||
ELF64_R_TYPE_INFO (
|
||
ELF64_R_TYPE_DATA (rel->r_info),
|
||
r_type));
|
||
}
|
||
}
|
||
|
||
loc = sreloc->contents;
|
||
loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
|
||
bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
|
||
|
||
/* This reloc will be computed at runtime, so there's no
|
||
need to do anything now. */
|
||
if (! relocate)
|
||
continue;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
switch (r_type)
|
||
{
|
||
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 (sgot == NULL)
|
||
{
|
||
sgot = bfd_get_section_by_name (dynobj, ".got");
|
||
BFD_ASSERT (sgot != NULL);
|
||
}
|
||
|
||
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, h)
|
||
|| (info->shared
|
||
&& (info->symbolic
|
||
|| h->dynindx == -1
|
||
|| (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
|
||
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
|
||
{
|
||
/* 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, 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
|
||
{
|
||
bfd_put_64 (output_bfd, relocation,
|
||
sgot->contents + off);
|
||
h->got.offset |= 1;
|
||
}
|
||
}
|
||
else
|
||
unresolved_reloc = FALSE;
|
||
}
|
||
else
|
||
{
|
||
BFD_ASSERT (local_got_offsets != NULL);
|
||
off = local_got_offsets[r_symndx];
|
||
BFD_ASSERT (off != (bfd_vma) -1);
|
||
|
||
/* The offset must always be a multiple of 8. We use
|
||
the least significant bit to record whether we have
|
||
already processed this entry. */
|
||
if ((off & 1) != 0)
|
||
off &= ~1;
|
||
else
|
||
{
|
||
local_got_offsets[r_symndx] |= 1;
|
||
|
||
if (info->shared)
|
||
{
|
||
asection *s;
|
||
Elf_Internal_Rela outrel;
|
||
bfd_byte *loc;
|
||
|
||
/* The Solaris 2.7 64-bit linker adds the contents
|
||
of the location to the value of the reloc.
|
||
Note this is different behaviour to the
|
||
32-bit linker, which both adds the contents
|
||
and ignores the addend. So clear the location. */
|
||
bfd_put_64 (output_bfd, (bfd_vma) 0,
|
||
sgot->contents + off);
|
||
|
||
/* We need to generate a R_SPARC_RELATIVE reloc
|
||
for the dynamic linker. */
|
||
s = bfd_get_section_by_name(dynobj, ".rela.got");
|
||
BFD_ASSERT (s != NULL);
|
||
|
||
outrel.r_offset = (sgot->output_section->vma
|
||
+ sgot->output_offset
|
||
+ off);
|
||
outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE);
|
||
outrel.r_addend = relocation;
|
||
loc = s->contents;
|
||
loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
|
||
bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
|
||
}
|
||
else
|
||
bfd_put_64 (output_bfd, relocation, sgot->contents + off);
|
||
}
|
||
}
|
||
relocation = sgot->output_offset + off - got_base;
|
||
goto do_default;
|
||
|
||
case R_SPARC_WPLT30:
|
||
case R_SPARC_PLT32:
|
||
case R_SPARC_HIPLT22:
|
||
case R_SPARC_LOPLT10:
|
||
case R_SPARC_PCPLT32:
|
||
case R_SPARC_PCPLT22:
|
||
case R_SPARC_PCPLT10:
|
||
case R_SPARC_PLT64:
|
||
/* Relocation is to the entry for this symbol in the
|
||
procedure linkage table. */
|
||
BFD_ASSERT (h != NULL);
|
||
|
||
if (h->plt.offset == (bfd_vma) -1)
|
||
{
|
||
/* We didn't make a PLT entry for this symbol. This
|
||
happens when statically linking PIC code, or when
|
||
using -Bsymbolic. */
|
||
goto do_default;
|
||
}
|
||
|
||
if (splt == NULL)
|
||
{
|
||
splt = bfd_get_section_by_name (dynobj, ".plt");
|
||
BFD_ASSERT (splt != NULL);
|
||
}
|
||
|
||
relocation = (splt->output_section->vma
|
||
+ splt->output_offset
|
||
+ sparc64_elf_plt_entry_offset (h->plt.offset));
|
||
unresolved_reloc = FALSE;
|
||
if (r_type == R_SPARC_WPLT30)
|
||
goto do_wplt30;
|
||
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 do_dynreloc;
|
||
}
|
||
goto do_default;
|
||
|
||
case R_SPARC_OLO10:
|
||
{
|
||
bfd_vma x;
|
||
|
||
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);
|
||
}
|
||
break;
|
||
|
||
case R_SPARC_WDISP16:
|
||
{
|
||
bfd_vma x;
|
||
|
||
relocation += rel->r_addend;
|
||
/* Adjust for pc-relative-ness. */
|
||
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 &= ~(bfd_vma) 0x303fff;
|
||
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);
|
||
}
|
||
break;
|
||
|
||
case R_SPARC_HIX22:
|
||
{
|
||
bfd_vma x;
|
||
|
||
relocation += rel->r_addend;
|
||
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);
|
||
}
|
||
break;
|
||
|
||
case R_SPARC_LOX10:
|
||
{
|
||
bfd_vma x;
|
||
|
||
relocation += rel->r_addend;
|
||
relocation = (relocation & 0x3ff) | 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;
|
||
}
|
||
break;
|
||
|
||
case R_SPARC_WDISP30:
|
||
do_wplt30:
|
||
if (sec_do_relax (input_section)
|
||
&& rel->r_offset + 4 < input_section->_raw_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);
|
||
if (reloc & 3)
|
||
goto do_default;
|
||
|
||
/* Ensure the branch fits into simm22. */
|
||
if ((reloc & ~(bfd_vma)0x7fffff)
|
||
&& ((reloc | 0x7fffff) != MINUS_ONE))
|
||
goto do_default;
|
||
reloc >>= 2;
|
||
|
||
/* Check whether it fits into simm19. */
|
||
if ((reloc & 0x3c0000) == 0
|
||
|| (reloc & 0x3c0000) == 0x3c0000)
|
||
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);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
/* Fall through. */
|
||
|
||
default:
|
||
do_default:
|
||
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
||
contents, rel->r_offset,
|
||
relocation, rel->r_addend);
|
||
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->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
|
||
(*_bfd_error_handler)
|
||
(_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
|
||
bfd_archive_filename (input_bfd),
|
||
bfd_get_section_name (input_bfd, input_section),
|
||
(long) rel->r_offset,
|
||
h->root.root.string);
|
||
|
||
switch (r)
|
||
{
|
||
case bfd_reloc_ok:
|
||
break;
|
||
|
||
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 for discarded entries. */
|
||
if (r_type == R_SPARC_32
|
||
&& _bfd_elf_section_offset (output_bfd, info, input_section,
|
||
rel->r_offset) == (bfd_vma) -1)
|
||
break;
|
||
|
||
if (h != NULL)
|
||
{
|
||
if (h->root.type == bfd_link_hash_undefweak
|
||
&& howto->pc_relative)
|
||
{
|
||
/* 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. */
|
||
break;
|
||
}
|
||
|
||
name = h->root.root.string;
|
||
}
|
||
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, name, howto->name, (bfd_vma) 0,
|
||
input_bfd, input_section, rel->r_offset)))
|
||
return FALSE;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Finish up dynamic symbol handling. We set the contents of various
|
||
dynamic sections here. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
|
||
bfd *output_bfd;
|
||
struct bfd_link_info *info;
|
||
struct elf_link_hash_entry *h;
|
||
Elf_Internal_Sym *sym;
|
||
{
|
||
bfd *dynobj;
|
||
|
||
dynobj = elf_hash_table (info)->dynobj;
|
||
|
||
if (h->plt.offset != (bfd_vma) -1)
|
||
{
|
||
asection *splt;
|
||
asection *srela;
|
||
Elf_Internal_Rela rela;
|
||
bfd_byte *loc;
|
||
|
||
/* This symbol has an entry in the PLT. Set it up. */
|
||
|
||
BFD_ASSERT (h->dynindx != -1);
|
||
|
||
splt = bfd_get_section_by_name (dynobj, ".plt");
|
||
srela = bfd_get_section_by_name (dynobj, ".rela.plt");
|
||
BFD_ASSERT (splt != NULL && srela != NULL);
|
||
|
||
/* Fill in the entry in the .rela.plt section. */
|
||
|
||
if (h->plt.offset < LARGE_PLT_THRESHOLD)
|
||
{
|
||
rela.r_offset = sparc64_elf_plt_entry_offset (h->plt.offset);
|
||
rela.r_addend = 0;
|
||
}
|
||
else
|
||
{
|
||
bfd_vma max = splt->_raw_size / PLT_ENTRY_SIZE;
|
||
rela.r_offset = sparc64_elf_plt_ptr_offset (h->plt.offset, max);
|
||
rela.r_addend = -(sparc64_elf_plt_entry_offset (h->plt.offset) + 4)
|
||
-(splt->output_section->vma + splt->output_offset);
|
||
}
|
||
rela.r_offset += (splt->output_section->vma + splt->output_offset);
|
||
rela.r_info = ELF64_R_INFO (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 += (h->plt.offset - 4) * sizeof (Elf64_External_Rela);
|
||
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
|
||
|
||
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
||
{
|
||
/* 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->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK)
|
||
== 0)
|
||
sym->st_value = 0;
|
||
}
|
||
}
|
||
|
||
if (h->got.offset != (bfd_vma) -1)
|
||
{
|
||
asection *sgot;
|
||
asection *srela;
|
||
Elf_Internal_Rela rela;
|
||
bfd_byte *loc;
|
||
|
||
/* This symbol has an entry in the GOT. Set it up. */
|
||
|
||
sgot = bfd_get_section_by_name (dynobj, ".got");
|
||
srela = bfd_get_section_by_name (dynobj, ".rela.got");
|
||
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
|
||
&& (info->symbolic || h->dynindx == -1)
|
||
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
|
||
{
|
||
asection *sec = h->root.u.def.section;
|
||
rela.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE);
|
||
rela.r_addend = (h->root.u.def.value
|
||
+ sec->output_section->vma
|
||
+ sec->output_offset);
|
||
}
|
||
else
|
||
{
|
||
rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_GLOB_DAT);
|
||
rela.r_addend = 0;
|
||
}
|
||
|
||
bfd_put_64 (output_bfd, (bfd_vma) 0,
|
||
sgot->contents + (h->got.offset &~ (bfd_vma) 1));
|
||
loc = srela->contents;
|
||
loc += srela->reloc_count++ * sizeof (Elf64_External_Rela);
|
||
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
|
||
}
|
||
|
||
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
|
||
{
|
||
asection *s;
|
||
Elf_Internal_Rela rela;
|
||
bfd_byte *loc;
|
||
|
||
/* This symbols needs a copy reloc. Set it up. */
|
||
BFD_ASSERT (h->dynindx != -1);
|
||
|
||
s = bfd_get_section_by_name (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 = ELF64_R_INFO (h->dynindx, R_SPARC_COPY);
|
||
rela.r_addend = 0;
|
||
loc = s->contents + s->reloc_count++ * sizeof (Elf64_External_Rela);
|
||
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
|
||
}
|
||
|
||
/* Mark some specially defined symbols as absolute. */
|
||
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
||
|| strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
|
||
|| strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
|
||
sym->st_shndx = SHN_ABS;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Finish up the dynamic sections. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_finish_dynamic_sections (output_bfd, info)
|
||
bfd *output_bfd;
|
||
struct bfd_link_info *info;
|
||
{
|
||
bfd *dynobj;
|
||
int stt_regidx = -1;
|
||
asection *sdyn;
|
||
asection *sgot;
|
||
|
||
dynobj = elf_hash_table (info)->dynobj;
|
||
|
||
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
||
|
||
if (elf_hash_table (info)->dynamic_sections_created)
|
||
{
|
||
asection *splt;
|
||
Elf64_External_Dyn *dyncon, *dynconend;
|
||
|
||
splt = bfd_get_section_by_name (dynobj, ".plt");
|
||
BFD_ASSERT (splt != NULL && sdyn != NULL);
|
||
|
||
dyncon = (Elf64_External_Dyn *) sdyn->contents;
|
||
dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
|
||
for (; dyncon < dynconend; dyncon++)
|
||
{
|
||
Elf_Internal_Dyn dyn;
|
||
const char *name;
|
||
bfd_boolean size;
|
||
|
||
bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
|
||
|
||
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;
|
||
case 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++;
|
||
bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
|
||
/* fallthrough */
|
||
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
|
||
{
|
||
if (s->_cooked_size != 0)
|
||
dyn.d_un.d_val = s->_cooked_size;
|
||
else
|
||
dyn.d_un.d_val = s->_raw_size;
|
||
}
|
||
}
|
||
bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
|
||
}
|
||
}
|
||
|
||
/* Initialize the contents of the .plt section. */
|
||
if (splt->_raw_size > 0)
|
||
sparc64_elf_build_plt (output_bfd, splt->contents,
|
||
(int) (splt->_raw_size / PLT_ENTRY_SIZE));
|
||
|
||
elf_section_data (splt->output_section)->this_hdr.sh_entsize =
|
||
PLT_ENTRY_SIZE;
|
||
}
|
||
|
||
/* Set the first entry in the global offset table to the address of
|
||
the dynamic section. */
|
||
sgot = bfd_get_section_by_name (dynobj, ".got");
|
||
BFD_ASSERT (sgot != NULL);
|
||
if (sgot->_raw_size > 0)
|
||
{
|
||
if (sdyn == NULL)
|
||
bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
|
||
else
|
||
bfd_put_64 (output_bfd,
|
||
sdyn->output_section->vma + sdyn->output_offset,
|
||
sgot->contents);
|
||
}
|
||
|
||
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static enum elf_reloc_type_class
|
||
sparc64_elf_reloc_type_class (rela)
|
||
const Elf_Internal_Rela *rela;
|
||
{
|
||
switch ((int) ELF64_R_TYPE (rela->r_info))
|
||
{
|
||
case R_SPARC_RELATIVE:
|
||
return reloc_class_relative;
|
||
case R_SPARC_JMP_SLOT:
|
||
return reloc_class_plt;
|
||
case R_SPARC_COPY:
|
||
return reloc_class_copy;
|
||
default:
|
||
return reloc_class_normal;
|
||
}
|
||
}
|
||
|
||
/* Functions for dealing with the e_flags field. */
|
||
|
||
/* Merge backend specific data from an object file to the output
|
||
object file when linking. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_merge_private_bfd_data (ibfd, obfd)
|
||
bfd *ibfd;
|
||
bfd *obfd;
|
||
{
|
||
bfd_boolean error;
|
||
flagword new_flags, old_flags;
|
||
int new_mm, old_mm;
|
||
|
||
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|
||
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
|
||
return TRUE;
|
||
|
||
new_flags = elf_elfheader (ibfd)->e_flags;
|
||
old_flags = elf_elfheader (obfd)->e_flags;
|
||
|
||
if (!elf_flags_init (obfd)) /* First call, no flags set */
|
||
{
|
||
elf_flags_init (obfd) = TRUE;
|
||
elf_elfheader (obfd)->e_flags = new_flags;
|
||
}
|
||
|
||
else if (new_flags == old_flags) /* Compatible flags are ok */
|
||
;
|
||
|
||
else /* Incompatible flags */
|
||
{
|
||
error = FALSE;
|
||
|
||
#define EF_SPARC_ISA_EXTENSIONS \
|
||
(EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3 | EF_SPARC_HAL_R1)
|
||
|
||
if ((ibfd->flags & DYNAMIC) != 0)
|
||
{
|
||
/* We don't want dynamic objects memory ordering and
|
||
architecture to have any role. That's what dynamic linker
|
||
should do. */
|
||
new_flags &= ~(EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS);
|
||
new_flags |= (old_flags
|
||
& (EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS));
|
||
}
|
||
else
|
||
{
|
||
/* Choose the highest architecture requirements. */
|
||
old_flags |= (new_flags & EF_SPARC_ISA_EXTENSIONS);
|
||
new_flags |= (old_flags & EF_SPARC_ISA_EXTENSIONS);
|
||
if ((old_flags & (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3))
|
||
&& (old_flags & EF_SPARC_HAL_R1))
|
||
{
|
||
error = TRUE;
|
||
(*_bfd_error_handler)
|
||
(_("%s: linking UltraSPARC specific with HAL specific code"),
|
||
bfd_archive_filename (ibfd));
|
||
}
|
||
/* Choose the most restrictive memory ordering. */
|
||
old_mm = (old_flags & EF_SPARCV9_MM);
|
||
new_mm = (new_flags & EF_SPARCV9_MM);
|
||
old_flags &= ~EF_SPARCV9_MM;
|
||
new_flags &= ~EF_SPARCV9_MM;
|
||
if (new_mm < old_mm)
|
||
old_mm = new_mm;
|
||
old_flags |= old_mm;
|
||
new_flags |= old_mm;
|
||
}
|
||
|
||
/* Warn about any other mismatches */
|
||
if (new_flags != old_flags)
|
||
{
|
||
error = TRUE;
|
||
(*_bfd_error_handler)
|
||
(_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
|
||
bfd_archive_filename (ibfd), (long) new_flags, (long) old_flags);
|
||
}
|
||
|
||
elf_elfheader (obfd)->e_flags = old_flags;
|
||
|
||
if (error)
|
||
{
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return FALSE;
|
||
}
|
||
}
|
||
return TRUE;
|
||
}
|
||
|
||
/* MARCO: Set the correct entry size for the .stab section. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_fake_sections (abfd, hdr, sec)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED;
|
||
asection *sec;
|
||
{
|
||
const char *name;
|
||
|
||
name = bfd_get_section_name (abfd, sec);
|
||
|
||
if (strcmp (name, ".stab") == 0)
|
||
{
|
||
/* Even in the 64bit case the stab entries are only 12 bytes long. */
|
||
elf_section_data (sec)->this_hdr.sh_entsize = 12;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Print a STT_REGISTER symbol to file FILE. */
|
||
|
||
static const char *
|
||
sparc64_elf_print_symbol_all (abfd, filep, symbol)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
PTR filep;
|
||
asymbol *symbol;
|
||
{
|
||
FILE *file = (FILE *) filep;
|
||
int reg, type;
|
||
|
||
if (ELF_ST_TYPE (((elf_symbol_type *) symbol)->internal_elf_sym.st_info)
|
||
!= STT_REGISTER)
|
||
return NULL;
|
||
|
||
reg = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value;
|
||
type = symbol->flags;
|
||
fprintf (file, "REG_%c%c%11s%c%c R", "GOLI" [reg / 8], '0' + (reg & 7), "",
|
||
((type & BSF_LOCAL)
|
||
? (type & BSF_GLOBAL) ? '!' : 'l'
|
||
: (type & BSF_GLOBAL) ? 'g' : ' '),
|
||
(type & BSF_WEAK) ? 'w' : ' ');
|
||
if (symbol->name == NULL || symbol->name [0] == '\0')
|
||
return "#scratch";
|
||
else
|
||
return symbol->name;
|
||
}
|
||
|
||
/* Set the right machine number for a SPARC64 ELF file. */
|
||
|
||
static bfd_boolean
|
||
sparc64_elf_object_p (abfd)
|
||
bfd *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);
|
||
}
|
||
|
||
/* Relocations in the 64 bit SPARC ELF ABI are more complex than in
|
||
standard ELF, because R_SPARC_OLO10 has secondary addend in
|
||
ELF64_R_TYPE_DATA field. This structure is used to redirect the
|
||
relocation handling routines. */
|
||
|
||
const struct elf_size_info sparc64_elf_size_info =
|
||
{
|
||
sizeof (Elf64_External_Ehdr),
|
||
sizeof (Elf64_External_Phdr),
|
||
sizeof (Elf64_External_Shdr),
|
||
sizeof (Elf64_External_Rel),
|
||
sizeof (Elf64_External_Rela),
|
||
sizeof (Elf64_External_Sym),
|
||
sizeof (Elf64_External_Dyn),
|
||
sizeof (Elf_External_Note),
|
||
4, /* hash-table entry size. */
|
||
/* Internal relocations per external relocations.
|
||
For link purposes we use just 1 internal per
|
||
1 external, for assembly and slurp symbol table
|
||
we use 2. */
|
||
1,
|
||
64, /* arch_size. */
|
||
3, /* log_file_align. */
|
||
ELFCLASS64,
|
||
EV_CURRENT,
|
||
bfd_elf64_write_out_phdrs,
|
||
bfd_elf64_write_shdrs_and_ehdr,
|
||
sparc64_elf_write_relocs,
|
||
bfd_elf64_swap_symbol_in,
|
||
bfd_elf64_swap_symbol_out,
|
||
sparc64_elf_slurp_reloc_table,
|
||
bfd_elf64_slurp_symbol_table,
|
||
bfd_elf64_swap_dyn_in,
|
||
bfd_elf64_swap_dyn_out,
|
||
bfd_elf64_swap_reloc_in,
|
||
bfd_elf64_swap_reloc_out,
|
||
bfd_elf64_swap_reloca_in,
|
||
bfd_elf64_swap_reloca_out
|
||
};
|
||
|
||
#define TARGET_BIG_SYM bfd_elf64_sparc_vec
|
||
#define TARGET_BIG_NAME "elf64-sparc"
|
||
#define ELF_ARCH bfd_arch_sparc
|
||
#define ELF_MAXPAGESIZE 0x100000
|
||
|
||
/* This is the official ABI value. */
|
||
#define ELF_MACHINE_CODE EM_SPARCV9
|
||
|
||
/* This is the value that we used before the ABI was released. */
|
||
#define ELF_MACHINE_ALT1 EM_OLD_SPARCV9
|
||
|
||
#define bfd_elf64_bfd_link_hash_table_create \
|
||
sparc64_elf_bfd_link_hash_table_create
|
||
|
||
#define elf_info_to_howto \
|
||
sparc64_elf_info_to_howto
|
||
#define bfd_elf64_get_reloc_upper_bound \
|
||
sparc64_elf_get_reloc_upper_bound
|
||
#define bfd_elf64_get_dynamic_reloc_upper_bound \
|
||
sparc64_elf_get_dynamic_reloc_upper_bound
|
||
#define bfd_elf64_canonicalize_reloc \
|
||
sparc64_elf_canonicalize_reloc
|
||
#define bfd_elf64_canonicalize_dynamic_reloc \
|
||
sparc64_elf_canonicalize_dynamic_reloc
|
||
#define bfd_elf64_bfd_reloc_type_lookup \
|
||
sparc64_elf_reloc_type_lookup
|
||
#define bfd_elf64_bfd_relax_section \
|
||
sparc64_elf_relax_section
|
||
#define bfd_elf64_new_section_hook \
|
||
sparc64_elf_new_section_hook
|
||
|
||
#define elf_backend_create_dynamic_sections \
|
||
_bfd_elf_create_dynamic_sections
|
||
#define elf_backend_add_symbol_hook \
|
||
sparc64_elf_add_symbol_hook
|
||
#define elf_backend_get_symbol_type \
|
||
sparc64_elf_get_symbol_type
|
||
#define elf_backend_symbol_processing \
|
||
sparc64_elf_symbol_processing
|
||
#define elf_backend_check_relocs \
|
||
sparc64_elf_check_relocs
|
||
#define elf_backend_adjust_dynamic_symbol \
|
||
sparc64_elf_adjust_dynamic_symbol
|
||
#define elf_backend_size_dynamic_sections \
|
||
sparc64_elf_size_dynamic_sections
|
||
#define elf_backend_relocate_section \
|
||
sparc64_elf_relocate_section
|
||
#define elf_backend_finish_dynamic_symbol \
|
||
sparc64_elf_finish_dynamic_symbol
|
||
#define elf_backend_finish_dynamic_sections \
|
||
sparc64_elf_finish_dynamic_sections
|
||
#define elf_backend_print_symbol_all \
|
||
sparc64_elf_print_symbol_all
|
||
#define elf_backend_output_arch_syms \
|
||
sparc64_elf_output_arch_syms
|
||
#define bfd_elf64_bfd_merge_private_bfd_data \
|
||
sparc64_elf_merge_private_bfd_data
|
||
#define elf_backend_fake_sections \
|
||
sparc64_elf_fake_sections
|
||
|
||
#define elf_backend_size_info \
|
||
sparc64_elf_size_info
|
||
#define elf_backend_object_p \
|
||
sparc64_elf_object_p
|
||
#define elf_backend_reloc_type_class \
|
||
sparc64_elf_reloc_type_class
|
||
|
||
#define elf_backend_want_got_plt 0
|
||
#define elf_backend_plt_readonly 0
|
||
#define elf_backend_want_plt_sym 1
|
||
#define elf_backend_rela_normal 1
|
||
|
||
/* Section 5.2.4 of the ABI specifies a 256-byte boundary for the table. */
|
||
#define elf_backend_plt_alignment 8
|
||
|
||
#define elf_backend_got_header_size 8
|
||
#define elf_backend_plt_header_size PLT_HEADER_SIZE
|
||
|
||
#include "elf64-target.h"
|