diff options
Diffstat (limited to 'contrib/binutils/bfd')
| -rw-r--r-- | contrib/binutils/bfd/ChangeLog | 26 | ||||
| -rwxr-xr-x | contrib/binutils/bfd/config.bfd | 16 | ||||
| -rw-r--r-- | contrib/binutils/bfd/cpu-arc.c | 32 | ||||
| -rw-r--r-- | contrib/binutils/bfd/dwarf2.c | 3 | ||||
| -rw-r--r-- | contrib/binutils/bfd/efi-app-ia32.c | 34 | ||||
| -rw-r--r-- | contrib/binutils/bfd/elf32-arc.c | 221 | ||||
| -rw-r--r-- | contrib/binutils/bfd/elf32-arm.h | 2 | ||||
| -rw-r--r-- | contrib/binutils/bfd/elf64-x86-64.c | 1929 | ||||
| -rw-r--r-- | contrib/binutils/bfd/elfxx-ia64.c | 2 | ||||
| -rw-r--r-- | contrib/binutils/bfd/peXXigen.c | 5 |
10 files changed, 2140 insertions, 130 deletions
diff --git a/contrib/binutils/bfd/ChangeLog b/contrib/binutils/bfd/ChangeLog index e8bc010..d782ee5 100644 --- a/contrib/binutils/bfd/ChangeLog +++ b/contrib/binutils/bfd/ChangeLog @@ -1,3 +1,29 @@ +2001-10-24 Richard Henderson <rth@redhat.com> + + * peXXigen.c (_bfd_XX_print_private_bfd_data_common): Copy + timestamp to time_t for ctime. + +2001-10-24 Richard Henderson <rth@redhat.com> + + 2001-08-23 Jakub Jelinek <jakub@redhat.com> + * elfxx-ia64.c (elfNN_ia64_hash_table_create): Clear ia64_info. + +2001-10-06 Stephane Carrez <Stephane.Carrez@worldnet.fr> + + * dwarf2.c (comp_unit_find_nearest_line): Check for end of + compilation unit. + +2001-08-29 Joel Sherrill <joel@OARcorp.com> + + * config.bfd (i[3456]86-*-rtems*, m68*-*-rtems*): Change + default from coff to elf. + +2001-08-03 Ben Harris <bjh21@netbsd.org> + + * elf32-arm.h (elf32_arm_final_link_relocate): Include offset of + reloc from start of section when computing value for R_ARM_REL32 + reloc. + 2001-07-06 Philip Blundell <philb@gnu.org> * elf32-arm.h (elf32_arm_merge_private_bfd_data): Correct sense of diff --git a/contrib/binutils/bfd/config.bfd b/contrib/binutils/bfd/config.bfd index c2eb274..56025ac 100755 --- a/contrib/binutils/bfd/config.bfd +++ b/contrib/binutils/bfd/config.bfd @@ -310,10 +310,6 @@ case "${targ}" in targ_defvec=bfd_elf32_i386_vec targ_selvecs=i386coff_vec ;; - i[3456]86-*-rtemself*) - targ_defvec=bfd_elf32_i386_vec - targ_selvecs="i386coff_vec i386aout_vec" - ;; i[3456]86-*-chorus*) targ_defvec=bfd_elf32_i386_vec ;; @@ -325,10 +321,14 @@ case "${targ}" in i[3456]86-*-aix*) targ_defvec=i386coff_vec ;; - i[3456]86*-*-rtems*) + i[3456]86*-*-rtemscoff*) targ_defvec=i386coff_vec targ_selvecs="bfd_elf32_i386_vec i386aout_vec" ;; + i[3456]86-*-rtemself* | i[3456]86-*-rtems*) + targ_defvec=bfd_elf32_i386_vec + targ_selvecs="i386coff_vec i386aout_vec" + ;; i[3456]86-sequent-bsd*) targ_defvec=i386dynix_vec targ_underscore=yes @@ -501,12 +501,16 @@ case "${targ}" in targ_selvecs="cisco_core_big_vec ieee_vec" targ_underscore=yes ;; + m68*-*-rtemscoff*) + targ_defvec=m68kcoff_vec + targ_selvecs="m68kcoff_vec versados_vec ieee_vec aout0_big_vec" + ;; m68*-*-elf* | m68*-*-sysv4*) targ_defvec=bfd_elf32_m68k_vec targ_selvecs="m68kcoff_vec ieee_vec" ;; m68*-*-rtems*) - targ_defvec=m68kcoff_vec + targ_defvec=bfd_elf32_m68k_vec targ_selvecs="m68kcoff_vec versados_vec ieee_vec aout0_big_vec" ;; m68*-*-coff* | m68*-*-sysv*) diff --git a/contrib/binutils/bfd/cpu-arc.c b/contrib/binutils/bfd/cpu-arc.c index bce59d4..2904ae3 100644 --- a/contrib/binutils/bfd/cpu-arc.c +++ b/contrib/binutils/bfd/cpu-arc.c @@ -1,5 +1,5 @@ /* BFD support for the ARC processor - Copyright 1994, 1995, 1997 Free Software Foundation, Inc. + Copyright 1994, 1995, 1997, 2001 Free Software Foundation, Inc. Contributed by Doug Evans (dje@cygnus.com). This file is part of BFD, the Binary File Descriptor library. @@ -24,31 +24,32 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define ARC(mach, print_name, default_p, next) \ { \ - 32, /* 32 bits in a word */ \ - 32, /* 32 bits in an address */ \ - 8, /* 8 bits in a byte */ \ + 32, /* 32 bits in a word */ \ + 32, /* 32 bits in an address */ \ + 8, /* 8 bits in a byte */ \ bfd_arch_arc, \ mach, \ "arc", \ print_name, \ - 4, /* section alignment power */ \ + 4, /* section alignment power */ \ default_p, \ - bfd_default_compatible, \ + bfd_default_compatible, \ bfd_default_scan, \ next, \ } -#if 0 /* ??? Not currently needed, but keep in for future reference. */ static const bfd_arch_info_type arch_info_struct[] = { - ARC (bfd_mach_arc_foo, "arc-foo", false, &arch_info_struct[1]), - ARC (bfd_mach_arc_bar, "arc-bar", false, 0), + ARC ( bfd_mach_arc_5, "arc5", false, &arch_info_struct[1] ), + ARC ( bfd_mach_arc_5, "base", false, &arch_info_struct[2] ), + ARC ( bfd_mach_arc_6, "arc6", false, &arch_info_struct[3] ), + ARC ( bfd_mach_arc_7, "arc7", false, &arch_info_struct[4] ), + ARC ( bfd_mach_arc_8, "arc8", false, NULL ), }; -#endif const bfd_arch_info_type bfd_arc_arch = - ARC (bfd_mach_arc_base, "arc-base", true, 0 /*&arch_info_struct[0]*/); - + ARC ( bfd_mach_arc_6, "arc", true, &arch_info_struct[0] ); + /* Utility routines. */ /* Given cpu type NAME, return its bfd_mach_arc_xxx value. @@ -61,10 +62,7 @@ arc_get_mach (name) const bfd_arch_info_type *p; for (p = &bfd_arc_arch; p != NULL; p = p->next) - { - /* +4: skip over "arc-" */ - if (strcmp (name, p->printable_name + 4) == 0) - return p->mach; - } + if (strcmp (name, p->printable_name) == 0) + return p->mach; return -1; } diff --git a/contrib/binutils/bfd/dwarf2.c b/contrib/binutils/bfd/dwarf2.c index 4a03273..2161846 100644 --- a/contrib/binutils/bfd/dwarf2.c +++ b/contrib/binutils/bfd/dwarf2.c @@ -1431,7 +1431,8 @@ comp_unit_find_nearest_line (unit, addr, return false; } - if (! scan_unit_for_functions (unit)) + if (unit->first_child_die_ptr < unit->end_ptr + && ! scan_unit_for_functions (unit)) { unit->error = 1; return false; diff --git a/contrib/binutils/bfd/efi-app-ia32.c b/contrib/binutils/bfd/efi-app-ia32.c new file mode 100644 index 0000000..8519f99 --- /dev/null +++ b/contrib/binutils/bfd/efi-app-ia32.c @@ -0,0 +1,34 @@ +/* BFD back-end for Intel IA-32 EFI application files. + Copyright 1999, 2000 Free Software Foundation, Inc. + Contributed by David Mosberger <davidm@hpl.hp.com> + +This file is part of BFD, the Binary File Descriptor library. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "bfd.h" +#include "sysdep.h" + +#define TARGET_SYM bfd_efi_app_ia32_vec +#define TARGET_NAME "efi-app-ia32" +#define COFF_IMAGE_WITH_PE +#define COFF_WITH_PE +#define PCRELOFFSET true +#define TARGET_UNDERSCORE '_' +#define COFF_LONG_SECTION_NAMES +#define PEI_TARGET_SUBSYSTEM IMAGE_SUBSYSTEM_EFI_APPLICATION +#define PEI_FORCE_MINIMUM_ALIGNMENT + +#include "coff-i386.c" diff --git a/contrib/binutils/bfd/elf32-arc.c b/contrib/binutils/bfd/elf32-arc.c index 318dc70..82b6104 100644 --- a/contrib/binutils/bfd/elf32-arc.c +++ b/contrib/binutils/bfd/elf32-arc.c @@ -1,22 +1,22 @@ /* ARC-specific support for 32-bit ELF - Copyright (C) 1994, 1995, 1997, 1999 Free Software Foundation, Inc. + Copyright 1994, 1995, 1997, 1999, 2001 Free Software Foundation, Inc. Contributed by Doug Evans (dje@cygnus.com). -This file is part of BFD, the Binary File Descriptor library. + This file is part of BFD, the Binary File Descriptor library. -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "bfd.h" #include "sysdep.h" @@ -25,77 +25,80 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "elf/arc.h" static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup - PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); + PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); static void arc_info_to_howto_rel PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); -static boolean arc_elf_object_p PARAMS ((bfd *)); -static void arc_elf_final_write_processing PARAMS ((bfd *, boolean)); +static boolean arc_elf_object_p + PARAMS ((bfd *)); +static void arc_elf_final_write_processing + PARAMS ((bfd *, boolean)); /* Try to minimize the amount of space occupied by relocation tables on the ROM (not that the ROM won't be swamped by other ELF overhead). */ + #define USE_REL static reloc_howto_type elf_arc_howto_table[] = { /* This reloc does nothing. */ - HOWTO (R_ARC_NONE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_ARC_NONE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ + HOWTO (R_ARC_NONE, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_ARC_NONE", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + false), /* pcrel_offset */ /* A standard 32 bit relocation. */ - HOWTO (R_ARC_32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_ARC_32", /* name */ - false, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ + HOWTO (R_ARC_32, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_ARC_32", /* name */ + false, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ /* A 26 bit absolute branch, right shifted by 2. */ - HOWTO (R_ARC_B26, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_ARC_B26", /* name */ - false, /* partial_inplace */ - 0x00ffffff, /* src_mask */ - 0x00ffffff, /* dst_mask */ - false), /* pcrel_offset */ + HOWTO (R_ARC_B26, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_ARC_B26", /* name */ + false, /* partial_inplace */ + 0x00ffffff, /* src_mask */ + 0x00ffffff, /* dst_mask */ + false), /* pcrel_offset */ /* A relative 22 bit branch; bits 21-2 are stored in bits 26-7. */ - HOWTO (R_ARC_B22_PCREL, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 22, /* bitsize */ - true, /* pc_relative */ - 7, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_ARC_B22_PCREL", /* name */ - false, /* partial_inplace */ - 0x07ffff80, /* src_mask */ - 0x07ffff80, /* dst_mask */ - true), /* pcrel_offset */ + HOWTO (R_ARC_B22_PCREL, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 22, /* bitsize */ + true, /* pc_relative */ + 7, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_ARC_B22_PCREL", /* name */ + false, /* partial_inplace */ + 0x07ffff80, /* src_mask */ + 0x07ffff80, /* dst_mask */ + true), /* pcrel_offset */ }; @@ -123,14 +126,11 @@ bfd_elf32_bfd_reloc_type_lookup (abfd, code) { unsigned int i; - for (i = 0; - i < sizeof (arc_reloc_map) / sizeof (struct arc_reloc_map); - i++) + for (i = 0; i < sizeof (arc_reloc_map) / sizeof (struct arc_reloc_map); i++) { if (arc_reloc_map[i].bfd_reloc_val == code) return &elf_arc_howto_table[arc_reloc_map[i].elf_reloc_val]; } - return NULL; } @@ -155,21 +155,30 @@ static boolean arc_elf_object_p (abfd) bfd *abfd; { - int mach; - unsigned long arch = elf_elfheader (abfd)->e_flags & EF_ARC_MACH; + int mach = bfd_mach_arc_6; - switch (arch) + if (elf_elfheader(abfd)->e_machine == EM_ARC) { - case E_ARC_MACH_BASE: - mach = bfd_mach_arc_base; - break; - default: - /* Unknown cpu type. ??? What to do? */ - return false; + unsigned long arch = elf_elfheader (abfd)->e_flags & EF_ARC_MACH; + + switch (arch) + { + case E_ARC_MACH_ARC5: + mach = bfd_mach_arc_5; + break; + default: + case E_ARC_MACH_ARC6: + mach = bfd_mach_arc_6; + break; + case E_ARC_MACH_ARC7: + mach = bfd_mach_arc_7; + break; + case E_ARC_MACH_ARC8: + mach = bfd_mach_arc_8; + break; + } } - - (void) bfd_default_set_arch_mach (abfd, bfd_arch_arc, mach); - return true; + return bfd_default_set_arch_mach (abfd, bfd_arch_arc, mach); } /* The final processing done just before writing out an ARC ELF object file. @@ -180,34 +189,40 @@ arc_elf_final_write_processing (abfd, linker) bfd *abfd; boolean linker ATTRIBUTE_UNUSED; { - int mach; unsigned long val; - switch (mach = bfd_get_mach (abfd)) + switch (bfd_get_mach (abfd)) { - case bfd_mach_arc_base: - val = E_ARC_MACH_BASE; + case bfd_mach_arc_5: + val = E_ARC_MACH_ARC5; break; default: - return; + case bfd_mach_arc_6: + val = E_ARC_MACH_ARC6; + break; + case bfd_mach_arc_7: + val = E_ARC_MACH_ARC7; + break; + case bfd_mach_arc_8: + val = E_ARC_MACH_ARC8; + break; } - + elf_elfheader (abfd)->e_machine = EM_ARC; elf_elfheader (abfd)->e_flags &=~ EF_ARC_MACH; elf_elfheader (abfd)->e_flags |= val; } -#define TARGET_LITTLE_SYM bfd_elf32_littlearc_vec -#define TARGET_LITTLE_NAME "elf32-littlearc" -#define TARGET_BIG_SYM bfd_elf32_bigarc_vec -#define TARGET_BIG_NAME "elf32-bigarc" -#define ELF_ARCH bfd_arch_arc -#define ELF_MACHINE_CODE EM_CYGNUS_ARC -#define ELF_MAXPAGESIZE 0x1000 - -#define elf_info_to_howto 0 -#define elf_info_to_howto_rel arc_info_to_howto_rel -#define elf_backend_object_p arc_elf_object_p -#define elf_backend_final_write_processing \ - arc_elf_final_write_processing +#define TARGET_LITTLE_SYM bfd_elf32_littlearc_vec +#define TARGET_LITTLE_NAME "elf32-littlearc" +#define TARGET_BIG_SYM bfd_elf32_bigarc_vec +#define TARGET_BIG_NAME "elf32-bigarc" +#define ELF_ARCH bfd_arch_arc +#define ELF_MACHINE_CODE EM_ARC +#define ELF_MAXPAGESIZE 0x1000 + +#define elf_info_to_howto 0 +#define elf_info_to_howto_rel arc_info_to_howto_rel +#define elf_backend_object_p arc_elf_object_p +#define elf_backend_final_write_processing arc_elf_final_write_processing #include "elf32-target.h" diff --git a/contrib/binutils/bfd/elf32-arm.h b/contrib/binutils/bfd/elf32-arm.h index b05a5cc..d628f1d 100644 --- a/contrib/binutils/bfd/elf32-arm.h +++ b/contrib/binutils/bfd/elf32-arm.h @@ -1295,7 +1295,7 @@ elf32_arm_final_link_relocate (howto, input_bfd, output_bfd, case R_ARM_REL32: value -= (input_section->output_section->vma - + input_section->output_offset); + + input_section->output_offset + rel->r_offset); value += addend; break; } diff --git a/contrib/binutils/bfd/elf64-x86-64.c b/contrib/binutils/bfd/elf64-x86-64.c new file mode 100644 index 0000000..6153468 --- /dev/null +++ b/contrib/binutils/bfd/elf64-x86-64.c @@ -0,0 +1,1929 @@ +/* X86-64 specific support for 64-bit ELF + Copyright 2000, 2001 Free Software Foundation, Inc. + Contributed by Jan Hubicka <jh@suse.cz>. + +This file is part of BFD, the Binary File Descriptor library. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "bfd.h" +#include "sysdep.h" +#include "libbfd.h" +#include "elf-bfd.h" + +#include "elf/x86-64.h" + +/* We use only the RELA entries. */ +#define USE_RELA + +/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ +#define MINUS_ONE (~ (bfd_vma) 0) + +/* The relocation "howto" table. Order of fields: + type, size, bitsize, pc_relative, complain_on_overflow, + special_function, name, partial_inplace, src_mask, dst_pack, pcrel_offset. */ +static reloc_howto_type x86_64_elf_howto_table[] = +{ + HOWTO(R_X86_64_NONE, 0, 0, 0, false, 0, complain_overflow_dont, + bfd_elf_generic_reloc, "R_X86_64_NONE", false, 0x00000000, 0x00000000, + false), + HOWTO(R_X86_64_64, 0, 4, 64, false, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_X86_64_64", false, MINUS_ONE, MINUS_ONE, + false), + HOWTO(R_X86_64_PC32, 0, 4, 32, true, 0, complain_overflow_signed, + bfd_elf_generic_reloc, "R_X86_64_PC32", false, 0xffffffff, 0xffffffff, + true), + HOWTO(R_X86_64_GOT32, 0, 4, 32, false, 0, complain_overflow_signed, + bfd_elf_generic_reloc, "R_X86_64_GOT32", false, 0xffffffff, 0xffffffff, + false), + HOWTO(R_X86_64_PLT32, 0, 4, 32, true, 0, complain_overflow_signed, + bfd_elf_generic_reloc, "R_X86_64_PLT32", false, 0xffffffff, 0xffffffff, + true), + HOWTO(R_X86_64_COPY, 0, 4, 32, false, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_X86_64_COPY", false, 0xffffffff, 0xffffffff, + false), + HOWTO(R_X86_64_GLOB_DAT, 0, 4, 64, false, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_X86_64_GLOB_DAT", false, MINUS_ONE, + MINUS_ONE, false), + HOWTO(R_X86_64_JUMP_SLOT, 0, 4, 64, false, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_X86_64_JUMP_SLOT", false, MINUS_ONE, + MINUS_ONE, false), + HOWTO(R_X86_64_RELATIVE, 0, 4, 64, false, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_X86_64_RELATIVE", false, MINUS_ONE, + MINUS_ONE, false), + HOWTO(R_X86_64_GOTPCREL, 0, 4, 32, true,0 , complain_overflow_signed, + bfd_elf_generic_reloc, "R_X86_64_GOTPCREL", false, 0xffffffff, + 0xffffffff, true), + HOWTO(R_X86_64_32, 0, 4, 32, false, 0, complain_overflow_unsigned, + bfd_elf_generic_reloc, "R_X86_64_32", false, 0xffffffff, 0xffffffff, + false), + HOWTO(R_X86_64_32S, 0, 4, 32, false, 0, complain_overflow_signed, + bfd_elf_generic_reloc, "R_X86_64_32S", false, 0xffffffff, 0xffffffff, + false), + HOWTO(R_X86_64_16, 0, 1, 16, false, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_X86_64_16", false, 0xffff, 0xffff, false), + HOWTO(R_X86_64_PC16,0, 1, 16, true, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_X86_64_PC16", false, 0xffff, 0xffff, true), + HOWTO(R_X86_64_8, 0, 0, 8, false, 0, complain_overflow_signed, + bfd_elf_generic_reloc, "R_X86_64_8", false, 0xff, 0xff, false), + HOWTO(R_X86_64_PC8, 0, 0, 8, true, 0, complain_overflow_signed, + bfd_elf_generic_reloc, "R_X86_64_PC8", false, 0xff, 0xff, true) +}; + +/* Map BFD relocs to the x86_64 elf relocs. */ +struct elf_reloc_map +{ + bfd_reloc_code_real_type bfd_reloc_val; + unsigned char elf_reloc_val; +}; + +static CONST struct elf_reloc_map x86_64_reloc_map[] = +{ + { BFD_RELOC_NONE, R_X86_64_NONE, }, + { BFD_RELOC_64, R_X86_64_64, }, + { BFD_RELOC_32_PCREL, R_X86_64_PC32, }, + { BFD_RELOC_X86_64_GOT32, R_X86_64_GOT32,}, + { BFD_RELOC_X86_64_PLT32, R_X86_64_PLT32,}, + { BFD_RELOC_X86_64_COPY, R_X86_64_COPY, }, + { BFD_RELOC_X86_64_GLOB_DAT, R_X86_64_GLOB_DAT, }, + { BFD_RELOC_X86_64_JUMP_SLOT, R_X86_64_JUMP_SLOT, }, + { BFD_RELOC_X86_64_RELATIVE, R_X86_64_RELATIVE, }, + { BFD_RELOC_X86_64_GOTPCREL, R_X86_64_GOTPCREL, }, + { BFD_RELOC_32, R_X86_64_32, }, + { BFD_RELOC_X86_64_32S, R_X86_64_32S, }, + { BFD_RELOC_16, R_X86_64_16, }, + { BFD_RELOC_16_PCREL, R_X86_64_PC16, }, + { BFD_RELOC_8, R_X86_64_8, }, + { BFD_RELOC_8_PCREL, R_X86_64_PC8, }, +}; + +static reloc_howto_type *elf64_x86_64_reloc_type_lookup + PARAMS ((bfd *, bfd_reloc_code_real_type)); +static void elf64_x86_64_info_to_howto + PARAMS ((bfd *, arelent *, Elf64_Internal_Rela *)); +static struct bfd_link_hash_table *elf64_x86_64_link_hash_table_create + PARAMS ((bfd *)); + +static struct bfd_hash_entry *elf64_x86_64_link_hash_newfunc + PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); +static boolean elf64_x86_64_adjust_dynamic_symbol + PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); + +static boolean elf64_x86_64_size_dynamic_sections + PARAMS ((bfd *, struct bfd_link_info *)); +static boolean elf64_x86_64_relocate_section + PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, + Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); +static boolean elf64_x86_64_finish_dynamic_symbol + PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, + Elf_Internal_Sym *sym)); +static boolean elf64_x86_64_finish_dynamic_sections + PARAMS ((bfd *, struct bfd_link_info *)); + +/* Given a BFD reloc type, return a HOWTO structure. */ +static reloc_howto_type * +elf64_x86_64_reloc_type_lookup (abfd, code) + bfd *abfd ATTRIBUTE_UNUSED; + bfd_reloc_code_real_type code; +{ + unsigned int i; + for (i = 0; i < sizeof (x86_64_reloc_map) / sizeof (struct elf_reloc_map); + i++) + { + if (x86_64_reloc_map[i].bfd_reloc_val == code) + return &x86_64_elf_howto_table[(int) + x86_64_reloc_map[i].elf_reloc_val]; + } + return 0; +} + +/* Given an x86_64 ELF reloc type, fill in an arelent structure. */ + +static void +elf64_x86_64_info_to_howto (abfd, cache_ptr, dst) + bfd *abfd ATTRIBUTE_UNUSED; + arelent *cache_ptr; + Elf64_Internal_Rela *dst; +{ + unsigned r_type; + + r_type = ELF64_R_TYPE (dst->r_info); + BFD_ASSERT (r_type < (unsigned int) R_X86_64_max); + cache_ptr->howto = &x86_64_elf_howto_table[r_type]; + BFD_ASSERT (r_type == cache_ptr->howto->type); +} + +/* Functions for the x86-64 ELF linker. */ + +/* The name of the dynamic interpreter. This is put in the .interp + section. */ + +#define ELF_DYNAMIC_INTERPRETER "/lib/ld64.so.1" + +/* The size in bytes of an entry in the global offset table. */ + +#define GOT_ENTRY_SIZE 8 + +/* The size in bytes of an entry in the procedure linkage table. */ + +#define PLT_ENTRY_SIZE 16 + +/* The first entry in a procedure linkage table looks like this. See the + SVR4 ABI i386 supplement and the x86-64 ABI to see how this works. */ + +static const bfd_byte elf64_x86_64_plt0_entry[PLT_ENTRY_SIZE] = +{ + 0xff, 0x35, 8, 0, 0, 0, /* pushq GOT+8(%rip) */ + 0xff, 0x25, 16, 0, 0, 0, /* jmpq *GOT+16(%rip) */ + 0x90, 0x90, 0x90, 0x90 /* pad out to 16 bytes with nops. */ +}; + +/* Subsequent entries in a procedure linkage table look like this. */ + +static const bfd_byte elf64_x86_64_plt_entry[PLT_ENTRY_SIZE] = +{ + 0xff, 0x25, /* jmpq *name@GOTPC(%rip) */ + 0, 0, 0, 0, /* replaced with offset to this symbol in .got. */ + 0x68, /* pushq immediate */ + 0, 0, 0, 0, /* replaced with index into relocation table. */ + 0xe9, /* jmp relative */ + 0, 0, 0, 0 /* replaced with offset to start of .plt0. */ +}; + +/* The x86-64 linker needs to keep track of the number of relocs that + it decides to copy in check_relocs for each symbol. This is so + that it can discard PC relative relocs if it doesn't need them when + linking with -Bsymbolic. We store the information in a field + extending the regular ELF linker hash table. */ + +/* This structure keeps track of the number of PC relative relocs we + have copied for a given symbol. */ + +struct elf64_x86_64_pcrel_relocs_copied +{ + /* Next section. */ + struct elf64_x86_64_pcrel_relocs_copied *next; + /* A section in dynobj. */ + asection *section; + /* Number of relocs copied in this section. */ + bfd_size_type count; +}; + +/* x86-64 ELF linker hash entry. */ + +struct elf64_x86_64_link_hash_entry +{ + struct elf_link_hash_entry root; + + /* Number of PC relative relocs copied for this symbol. */ + struct elf64_x86_64_pcrel_relocs_copied *pcrel_relocs_copied; +}; + +/* x86-64 ELF linker hash table. */ + +struct elf64_x86_64_link_hash_table +{ + struct elf_link_hash_table root; +}; + +/* Declare this now that the above structures are defined. */ + +static boolean elf64_x86_64_discard_copies + PARAMS ((struct elf64_x86_64_link_hash_entry *, PTR)); + +/* Traverse an x86-64 ELF linker hash table. */ + +#define elf64_x86_64_link_hash_traverse(table, func, info) \ + (elf_link_hash_traverse \ + (&(table)->root, \ + (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \ + (info))) + +/* Get the x86-64 ELF linker hash table from a link_info structure. */ + +#define elf64_x86_64_hash_table(p) \ + ((struct elf64_x86_64_link_hash_table *) ((p)->hash)) + +/* Create an entry in an x86-64 ELF linker hash table. */ + +static struct bfd_hash_entry * +elf64_x86_64_link_hash_newfunc (entry, table, string) + struct bfd_hash_entry *entry; + struct bfd_hash_table *table; + const char *string; +{ + struct elf64_x86_64_link_hash_entry *ret = + (struct elf64_x86_64_link_hash_entry *) entry; + + /* Allocate the structure if it has not already been allocated by a + subclass. */ + if (ret == (struct elf64_x86_64_link_hash_entry *) NULL) + ret = ((struct elf64_x86_64_link_hash_entry *) + bfd_hash_allocate (table, + sizeof (struct elf64_x86_64_link_hash_entry))); + if (ret == (struct elf64_x86_64_link_hash_entry *) NULL) + return (struct bfd_hash_entry *) ret; + + /* Call the allocation method of the superclass. */ + ret = ((struct elf64_x86_64_link_hash_entry *) + _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, + table, string)); + if (ret != (struct elf64_x86_64_link_hash_entry *) NULL) + { + ret->pcrel_relocs_copied = NULL; + } + + return (struct bfd_hash_entry *) ret; +} + +/* Create an X86-64 ELF linker hash table. */ + +static struct bfd_link_hash_table * +elf64_x86_64_link_hash_table_create (abfd) + bfd *abfd; +{ + struct elf64_x86_64_link_hash_table *ret; + + ret = ((struct elf64_x86_64_link_hash_table *) + bfd_alloc (abfd, sizeof (struct elf64_x86_64_link_hash_table))); + if (ret == (struct elf64_x86_64_link_hash_table *) NULL) + return NULL; + + if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, + elf64_x86_64_link_hash_newfunc)) + { + bfd_release (abfd, ret); + return NULL; + } + + return &ret->root.root; +} + +boolean +elf64_x86_64_elf_object_p (abfd) + bfd *abfd; +{ + /* Set the right machine number for an x86-64 elf64 file. */ + bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x86_64); + return true; +} + +/* Look through the relocs for a section during the first phase, and + allocate space in the global offset table or procedure linkage + table. */ + +static boolean +elf64_x86_64_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_signed_vma *local_got_refcounts; + const Elf_Internal_Rela *rel; + const Elf_Internal_Rela *rel_end; + asection *sgot; + asection *srelgot; + asection *sreloc; + + if (info->relocateable) + return true; + + dynobj = elf_hash_table (info)->dynobj; + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + sym_hashes = elf_sym_hashes (abfd); + local_got_refcounts = elf_local_got_refcounts (abfd); + + sgot = srelgot = sreloc = NULL; + rel_end = relocs + sec->reloc_count; + 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]; + + /* Some relocs require a global offset table. */ + if (dynobj == NULL) + { + switch (ELF64_R_TYPE (rel->r_info)) + { + case R_X86_64_GOT32: + case R_X86_64_GOTPCREL: + elf_hash_table (info)->dynobj = dynobj = abfd; + if (! _bfd_elf_create_got_section (dynobj, info)) + return false; + break; + } + } + + switch (ELF64_R_TYPE (rel->r_info)) + { + case R_X86_64_GOTPCREL: + case R_X86_64_GOT32: + /* This symbol requires a global offset table entry. */ + + 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.refcount == -1) + { + h->got.refcount = 1; + + /* 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; + } + + sgot->_raw_size += GOT_ENTRY_SIZE; + srelgot->_raw_size += sizeof (Elf64_External_Rela); + } + else + h->got.refcount += 1; + } + else + { + /* This is a global offset table entry for a local symbol. */ + if (local_got_refcounts == NULL) + { + size_t size; + + size = symtab_hdr->sh_info * sizeof (bfd_signed_vma); + local_got_refcounts = ((bfd_signed_vma *) + bfd_alloc (abfd, size)); + if (local_got_refcounts == NULL) + return false; + elf_local_got_refcounts (abfd) = local_got_refcounts; + memset (local_got_refcounts, -1, size); + } + if (local_got_refcounts[r_symndx] == -1) + { + local_got_refcounts[r_symndx] = 1; + + sgot->_raw_size += GOT_ENTRY_SIZE; + if (info->shared) + { + /* If we are generating a shared object, we need to + output a R_X86_64_RELATIVE reloc so that the dynamic + linker can adjust this GOT entry. */ + srelgot->_raw_size += sizeof (Elf64_External_Rela); + } + } + else + local_got_refcounts[r_symndx] += 1; + } + break; + + case R_X86_64_PLT32: + /* 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 which is + never referenced by a dynamic object, in which case we + don't need to generate a procedure linkage table entry + after all. */ + + /* If this is a local symbol, we resolve it directly without + creating a procedure linkage table entry. */ + if (h == NULL) + continue; + + h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; + if (h->plt.refcount == -1) + h->plt.refcount = 1; + else + h->plt.refcount += 1; + break; + + case R_X86_64_8: + case R_X86_64_16: + case R_X86_64_32: + case R_X86_64_64: + case R_X86_64_32S: + case R_X86_64_PC32: + if (h != NULL) + h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; + + /* If we are creating a shared library, and this is a reloc + against a global symbol, or a non PC relative reloc + against a local symbol, then we need to copy the reloc + into the shared library. However, if we are linking with + -Bsymbolic, we do not need to copy a reloc against a + global symbol which is defined in an object we are + including in the link (i.e., DEF_REGULAR is set). At + this point we have not seen all the input files, so it is + possible that DEF_REGULAR is not set now but will be set + later (it is never cleared). We account for that + possibility below by storing information in the + pcrel_relocs_copied field of the hash table entry. + A similar situation occurs when creating shared libraries + and symbol visibility changes render the symbol local. */ + if (info->shared + && (sec->flags & SEC_ALLOC) != 0 + && (((ELF64_R_TYPE (rel->r_info) != R_X86_64_PC8) + && (ELF64_R_TYPE (rel->r_info) != R_X86_64_PC16) + && (ELF64_R_TYPE (rel->r_info) != R_X86_64_PC32)) + || (h != NULL + && (! info->symbolic + || (h->elf_link_hash_flags + & ELF_LINK_HASH_DEF_REGULAR) == 0)))) + { + /* When creating a shared object, we must copy these + reloc types into the output file. We create a reloc + section in dynobj and make room for this reloc. */ + 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; + } + } + + sreloc->_raw_size += sizeof (Elf64_External_Rela); + + /* If this is a global symbol, we count the number of PC + relative relocations we have entered for this symbol, + so that we can discard them later as necessary. Note + that this function is only called if we are using an + elf64_x86_64 linker hash table, which means that h is + really a pointer to an elf64_x86_64_link_hash_entry. */ + if (h != NULL + && ((ELF64_R_TYPE (rel->r_info) == R_X86_64_PC8) + || (ELF64_R_TYPE (rel->r_info) == R_X86_64_PC16) + || (ELF64_R_TYPE (rel->r_info) == R_X86_64_PC32))) + { + struct elf64_x86_64_link_hash_entry *eh; + struct elf64_x86_64_pcrel_relocs_copied *p; + + eh = (struct elf64_x86_64_link_hash_entry *) h; + + for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) + if (p->section == sreloc) + break; + + if (p == NULL) + { + p = ((struct elf64_x86_64_pcrel_relocs_copied *) + bfd_alloc (dynobj, sizeof *p)); + if (p == NULL) + return false; + p->next = eh->pcrel_relocs_copied; + eh->pcrel_relocs_copied = p; + p->section = sreloc; + p->count = 0; + } + + ++p->count; + } + } + break; + } + } + + return true; +} + +/* Return the section that should be marked against GC for a given + relocation. */ + +static asection * +elf64_x86_64_gc_mark_hook (abfd, info, rel, h, sym) + bfd *abfd; + struct bfd_link_info *info ATTRIBUTE_UNUSED; + Elf_Internal_Rela *rel ATTRIBUTE_UNUSED; + struct elf_link_hash_entry *h; + Elf_Internal_Sym *sym; +{ + if (h != NULL) + { + switch (h->root.type) + { + case bfd_link_hash_defined: + case bfd_link_hash_defweak: + return h->root.u.def.section; + + case bfd_link_hash_common: + return h->root.u.c.p->section; + + default: + break; + } + } + else + { + if (!(elf_bad_symtab (abfd) + && ELF_ST_BIND (sym->st_info) != STB_LOCAL) + && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) + && sym->st_shndx != SHN_COMMON)) + { + return bfd_section_from_elf_index (abfd, sym->st_shndx); + } + } + + return NULL; +} + +/* Update the got entry reference counts for the section being removed. */ + +static boolean +elf64_x86_64_gc_sweep_hook (abfd, info, sec, relocs) + bfd *abfd; + struct bfd_link_info *info ATTRIBUTE_UNUSED; + asection *sec; + const Elf_Internal_Rela *relocs; +{ + Elf_Internal_Shdr *symtab_hdr; + struct elf_link_hash_entry **sym_hashes; + bfd_signed_vma *local_got_refcounts; + const Elf_Internal_Rela *rel, *relend; + unsigned long r_symndx; + struct elf_link_hash_entry *h; + bfd *dynobj; + asection *sgot; + asection *srelgot; + + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + sym_hashes = elf_sym_hashes (abfd); + local_got_refcounts = elf_local_got_refcounts (abfd); + + dynobj = elf_hash_table (info)->dynobj; + if (dynobj == NULL) + return true; + + sgot = bfd_get_section_by_name (dynobj, ".got"); + srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); + + relend = relocs + sec->reloc_count; + for (rel = relocs; rel < relend; rel++) + switch (ELF64_R_TYPE (rel->r_info)) + { + case R_X86_64_GOT32: + case R_X86_64_GOTPCREL: + r_symndx = ELF64_R_SYM (rel->r_info); + if (r_symndx >= symtab_hdr->sh_info) + { + h = sym_hashes[r_symndx - symtab_hdr->sh_info]; + if (h->got.refcount > 0) + { + h->got.refcount -= 1; + if (h->got.refcount == 0) + { + sgot->_raw_size -= GOT_ENTRY_SIZE; + srelgot->_raw_size -= sizeof (Elf64_External_Rela); + } + } + } + else if (local_got_refcounts != NULL) + { + if (local_got_refcounts[r_symndx] > 0) + { + local_got_refcounts[r_symndx] -= 1; + if (local_got_refcounts[r_symndx] == 0) + { + sgot->_raw_size -= GOT_ENTRY_SIZE; + if (info->shared) + srelgot->_raw_size -= sizeof (Elf64_External_Rela); + } + } + } + break; + + case R_X86_64_PLT32: + r_symndx = ELF64_R_SYM (rel->r_info); + if (r_symndx >= symtab_hdr->sh_info) + { + h = sym_hashes[r_symndx - symtab_hdr->sh_info]; + if (h->plt.refcount > 0) + h->plt.refcount -= 1; + } + break; + + default: + break; + } + + return true; +} + +/* Adjust a symbol defined by a dynamic object and referenced by a + regular object. The current definition is in some section of the + dynamic object, but we're not including those sections. We have to + change the definition to something the rest of the link can + understand. */ + +static boolean +elf64_x86_64_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, + when we know the address of the .got section. */ + if (h->type == STT_FUNC + || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) + { + if ((! info->shared + && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0 + && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0) + || (info->shared && h->plt.refcount <= 0)) + { + /* This case can occur if we saw a PLT32 reloc in an input + file, but the symbol was never referred to by a dynamic + object, or if all references were garbage collected. In + such a case, we don't actually need to build a procedure + linkage table, and we can just do a PC32 reloc instead. */ + h->plt.offset = (bfd_vma) -1; + h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; + return true; + } + + /* 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; + } + + s = bfd_get_section_by_name (dynobj, ".plt"); + BFD_ASSERT (s != NULL); + + /* If this is the first .plt entry, make room for the special + first entry. */ + if (s->_raw_size == 0) + 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 = s->_raw_size; + } + + h->plt.offset = s->_raw_size; + + /* Make room for this entry. */ + s->_raw_size += PLT_ENTRY_SIZE; + + /* We also need to make an entry in the .got.plt section, which + will be placed in the .got section by the linker script. */ + s = bfd_get_section_by_name (dynobj, ".got.plt"); + BFD_ASSERT (s != NULL); + s->_raw_size += GOT_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); + + 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; + + /* If there are no references to this symbol that do not use the + GOT, we don't need to generate a copy reloc. */ + if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) + return true; + + /* We must allocate the symbol in our .dynbss section, which will + become part of the .bss section of the executable. There will be + an entry for this symbol in the .dynsym section. The dynamic + object will contain position independent code, so all references + from the dynamic object to this symbol will go through the global + offset table. The dynamic linker will use the .dynsym entry to + determine the address it must put in the global offset table, so + both the dynamic object and the regular object will refer to the + same memory location for the variable. */ + + s = bfd_get_section_by_name (dynobj, ".dynbss"); + BFD_ASSERT (s != NULL); + + /* We must generate a R_X86_64_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 + .rela.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. */ + /* FIXME: This is VERY ugly. Should be fixed for all architectures using + this construct. */ + 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 boolean +elf64_x86_64_size_dynamic_sections (output_bfd, info) + bfd *output_bfd; + struct bfd_link_info *info; +{ + bfd *dynobj; + asection *s; + boolean plt; + boolean relocs; + boolean reltext; + + 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->shared) + { + 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; + } + + /* If this is a -Bsymbolic shared link, then we need to discard all + PC relative relocs against symbols defined in a regular object. + We allocated space for them in the check_relocs routine, but we + will not fill them in in the relocate_section routine. */ + if (info->shared) + elf64_x86_64_link_hash_traverse (elf64_x86_64_hash_table (info), + elf64_x86_64_discard_copies, + (PTR) info); + + /* The check_relocs and adjust_dynamic_symbol entry points have + determined the sizes of the various dynamic sections. Allocate + memory for them. */ + plt = relocs = reltext = false; + for (s = dynobj->sections; s != NULL; s = s->next) + { + const char *name; + 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 (strcmp (name, ".plt") == 0) + { + if (s->_raw_size == 0) + { + /* Strip this section if we don't need it; see the + comment below. */ + strip = true; + } + else + { + /* Remember whether there is a PLT. */ + plt = true; + } + } + else 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 mostly to handle .rela.bss and + .rela.plt. We must create both sections in + create_dynamic_sections, because they must be created + before the linker maps input sections to output + sections. The linker does that before + adjust_dynamic_symbol is called, and it is that + function which decides whether anything needs to go + into these sections. */ + strip = true; + } + else + { + asection *target; + + /* Remember whether there are any reloc sections other + than .rela.plt. */ + if (strcmp (name, ".rela.plt") != 0) + { + const char *outname; + + relocs = true; + + /* If this relocation section applies to a read only + section, then we probably need a DT_TEXTREL + entry. The entries in the .rela.plt section + really apply to the .got section, which we + created ourselves and so know is not readonly. */ + outname = bfd_get_section_name (output_bfd, + s->output_section); + target = bfd_get_section_by_name (output_bfd, outname + 5); + if (target != NULL + && (target->flags & SEC_READONLY) != 0 + && (target->flags & SEC_ALLOC) != 0) + reltext = 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 (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. We use bfd_zalloc + here in case unused entries are not reclaimed before the + section's contents are written out. This should not happen, + but this way if it does, we get a R_X86_64_NONE reloc instead + of 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 elf64_x86_64_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. */ + if (! info->shared) + { + if (! bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0)) + return false; + } + + if (plt) + { + if (! bfd_elf64_add_dynamic_entry (info, DT_PLTGOT, 0) + || ! bfd_elf64_add_dynamic_entry (info, DT_PLTRELSZ, 0) + || ! bfd_elf64_add_dynamic_entry (info, DT_PLTREL, DT_RELA) + || ! bfd_elf64_add_dynamic_entry (info, DT_JMPREL, 0)) + return false; + } + + if (relocs) + { + if (! bfd_elf64_add_dynamic_entry (info, DT_RELA, 0) + || ! bfd_elf64_add_dynamic_entry (info, DT_RELASZ, 0) + || ! bfd_elf64_add_dynamic_entry (info, DT_RELAENT, + sizeof (Elf64_External_Rela))) + return false; + } + + if (reltext) + { + if (! bfd_elf64_add_dynamic_entry (info, DT_TEXTREL, 0)) + return false; + info->flags |= DF_TEXTREL; + } + } + + return true; +} + +/* This function is called via elf64_x86_64_link_hash_traverse if we are + creating a shared object. In the -Bsymbolic case, it discards the + space allocated to copy PC relative relocs against symbols which + are defined in regular objects. For the normal non-symbolic case, + we also discard space for relocs that have become local due to + symbol visibility changes. We allocated space for them in the + check_relocs routine, but we won't fill them in in the + relocate_section routine. */ + +static boolean +elf64_x86_64_discard_copies (h, inf) + struct elf64_x86_64_link_hash_entry *h; + PTR inf; +{ + struct elf64_x86_64_pcrel_relocs_copied *s; + struct bfd_link_info *info = (struct bfd_link_info *) inf; + + /* If a symbol has been forced local or we have found a regular + definition for the symbolic link case, then we won't be needing + any relocs. */ + if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 + && ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 + || info->symbolic)) + { + for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) + s->section->_raw_size -= s->count * sizeof (Elf64_External_Rela); + } + + return true; +} + +/* Relocate an x86_64 ELF section. */ + +static boolean +elf64_x86_64_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; + asection *sgot; + asection *splt; + asection *sreloc; + Elf_Internal_Rela *rela; + Elf_Internal_Rela *relend; + + 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); + + sreloc = splt = sgot = NULL; + if (dynobj != NULL) + { + splt = bfd_get_section_by_name (dynobj, ".plt"); + sgot = bfd_get_section_by_name (dynobj, ".got"); + } + + rela = relocs; + relend = relocs + input_section->reloc_count; + for (; rela < relend; rela++) + { + 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; + bfd_reloc_status_type r; + unsigned int indx; + + r_type = ELF64_R_TYPE (rela->r_info); + + if ((indx = (unsigned) r_type) >= R_X86_64_max) + { + bfd_set_error (bfd_error_bad_value); + return false; + } + howto = x86_64_elf_howto_table + indx; + + r_symndx = ELF64_R_SYM (rela->r_info); + + if (info->relocateable) + { + /* This is a relocateable link. We don't have to change + anything, unless the reloc is against a section symbol, + in which case we have to adjust according to where the + section symbol winds up in the output section. */ + if (r_symndx < symtab_hdr->sh_info) + { + sym = local_syms + r_symndx; + if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) + { + sec = local_sections[r_symndx]; + rela->r_addend += sec->output_offset + sym->st_value; + } + } + + continue; + } + + /* This is a final link. */ + h = NULL; + sym = NULL; + sec = NULL; + if (r_symndx < symtab_hdr->sh_info) + { + sym = local_syms + r_symndx; + sec = local_sections[r_symndx]; + relocation = (sec->output_section->vma + + sec->output_offset + + sym->st_value); + } + 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; + if (h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + { + sec = h->root.u.def.section; + if ((r_type == R_X86_64_PLT32 + && splt != NULL + && h->plt.offset != (bfd_vma) -1) + || ((r_type == R_X86_64_GOT32 || r_type == R_X86_64_GOTPCREL) + && elf_hash_table (info)->dynamic_sections_created + && (!info->shared + || (! info->symbolic && h->dynindx != -1) + || (h->elf_link_hash_flags + & ELF_LINK_HASH_DEF_REGULAR) == 0)) + || (info->shared + && ((! info->symbolic && h->dynindx != -1) + || (h->elf_link_hash_flags + & ELF_LINK_HASH_DEF_REGULAR) == 0) + && (r_type == R_X86_64_8 + || r_type == R_X86_64_16 + || r_type == R_X86_64_32 + || r_type == R_X86_64_64 + || r_type == R_X86_64_PC8 + || r_type == R_X86_64_PC16 + || r_type == R_X86_64_PC32) + && ((input_section->flags & SEC_ALLOC) != 0 + /* DWARF will emit R_X86_64_32 relocations in its + sections against symbols defined externally + in shared libraries. We can't do anything + with them here. */ + || ((input_section->flags & SEC_DEBUGGING) != 0 + && (h->elf_link_hash_flags + & ELF_LINK_HASH_DEF_DYNAMIC) != 0)))) + { + /* In these cases, we don't need the relocation + value. We check specially because in some + obscure cases sec->output_section will be NULL. */ + relocation = 0; + } + else if (sec->output_section == NULL) + { + (*_bfd_error_handler) + (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"), + bfd_get_filename (input_bfd), h->root.root.string, + bfd_get_section_name (input_bfd, input_section)); + relocation = 0; + } + else + relocation = (h->root.u.def.value + + sec->output_section->vma + + sec->output_offset); + } + else if (h->root.type == bfd_link_hash_undefweak) + relocation = 0; + else if (info->shared && !info->symbolic && !info->no_undefined + && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) + relocation = 0; + else + { + if (! ((*info->callbacks->undefined_symbol) + (info, h->root.root.string, input_bfd, + input_section, rela->r_offset, + (!info->shared || info->no_undefined + || ELF_ST_VISIBILITY (h->other))))) + return false; + relocation = 0; + } + } + + /* When generating a shared object, the relocations handled here are + copied into the output file to be resolved at run time. */ + switch (r_type) + { + case R_X86_64_GOT32: + /* Relocation is to the entry for this symbol in the global + offset table. */ + case R_X86_64_GOTPCREL: + /* Use global offset table as symbol value. */ + BFD_ASSERT (sgot != NULL); + + if (h != NULL) + { + bfd_vma off = h->got.offset; + BFD_ASSERT (off != (bfd_vma) -1); + + if (! elf_hash_table (info)->dynamic_sections_created + || (info->shared + && (info->symbolic || h->dynindx == -1) + && (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; + } + } + if (r_type == R_X86_64_GOTPCREL) + relocation = sgot->output_section->vma + sgot->output_offset + off; + else + relocation = sgot->output_offset + off; + } + else + { + bfd_vma off; + + BFD_ASSERT (local_got_offsets != NULL + && local_got_offsets[r_symndx] != (bfd_vma) -1); + + off = local_got_offsets[r_symndx]; + + /* The offset must always be a multiple of 8. We use + the least significant bit to record whether we have + already generated the necessary reloc. */ + if ((off & 1) != 0) + off &= ~1; + else + { + bfd_put_64 (output_bfd, relocation, sgot->contents + off); + + if (info->shared) + { + asection *srelgot; + Elf_Internal_Rela outrel; + + /* We need to generate a R_X86_64_RELATIVE reloc + for the dynamic linker. */ + srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); + BFD_ASSERT (srelgot != NULL); + + outrel.r_offset = (sgot->output_section->vma + + sgot->output_offset + + off); + outrel.r_info = ELF64_R_INFO (0, R_X86_64_RELATIVE); + outrel.r_addend = relocation; + bfd_elf64_swap_reloca_out (output_bfd, &outrel, + (((Elf64_External_Rela *) + srelgot->contents) + + srelgot->reloc_count)); + ++srelgot->reloc_count; + } + + local_got_offsets[r_symndx] |= 1; + } + + if (r_type == R_X86_64_GOTPCREL) + relocation = sgot->output_section->vma + sgot->output_offset + off; + else + relocation = sgot->output_offset + off; + } + + break; + + case R_X86_64_PLT32: + /* Relocation is to the entry for this symbol in the + procedure linkage table. */ + + /* Resolve a PLT32 reloc against a local symbol directly, + without using the procedure linkage table. */ + if (h == NULL) + break; + + if (h->plt.offset == (bfd_vma) -1 || splt == NULL) + { + /* We didn't make a PLT entry for this symbol. This + happens when statically linking PIC code, or when + using -Bsymbolic. */ + break; + } + + relocation = (splt->output_section->vma + + splt->output_offset + + h->plt.offset); + break; + + case R_X86_64_PC8: + case R_X86_64_PC16: + case R_X86_64_PC32: + if (h == NULL || h->dynindx == -1 + || (info->symbolic + && h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) + break; + /* Fall through. */ + case R_X86_64_8: + case R_X86_64_16: + case R_X86_64_32: + case R_X86_64_64: + /* FIXME: The ABI says the linker should make sure the value is + the same when it's zeroextended to 64 bit. */ + if (info->shared && (input_section->flags & SEC_ALLOC) != 0) + { + Elf_Internal_Rela outrel; + boolean skip, relocate; + + /* When generating a shared object, these relocations + are copied into the output file to be resolved at run + time. */ + + if (sreloc == NULL) + { + const char *name; + + 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; + + if (elf_section_data (input_section)->stab_info == NULL) + outrel.r_offset = rela->r_offset; + else + { + bfd_vma off; + + off = (_bfd_stab_section_offset + (output_bfd, &elf_hash_table (info)->stab_info, + input_section, + &elf_section_data (input_section)->stab_info, + rela->r_offset)); + if (off == (bfd_vma) -1) + skip = true; + outrel.r_offset = off; + } + + outrel.r_offset += (input_section->output_section->vma + + input_section->output_offset); + + if (skip) + { + memset (&outrel, 0, sizeof outrel); + relocate = false; + } + /* h->dynindx may be -1 if this symbol was marked to + become local. */ + else if (h != NULL + && ((! info->symbolic && h->dynindx != -1) + || (h->elf_link_hash_flags + & ELF_LINK_HASH_DEF_REGULAR) == 0)) + { + BFD_ASSERT (h->dynindx != -1); + relocate = false; + outrel.r_info = ELF64_R_INFO (h->dynindx, r_type); + outrel.r_addend = relocation + rela->r_addend; + } + else + { + if (r_type == R_X86_64_64) + { + relocate = true; + outrel.r_info = ELF64_R_INFO (0, R_X86_64_RELATIVE); + outrel.r_addend = relocation + rela->r_addend; + } + else + { + long indx; + + 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; + BFD_ASSERT (indx > 0); + } + + relocate = false; + outrel.r_info = ELF64_R_INFO (indx, r_type); + outrel.r_addend = relocation + rela->r_addend; + } + + } + + bfd_elf64_swap_reloca_out (output_bfd, &outrel, + (((Elf64_External_Rela *) + sreloc->contents) + + sreloc->reloc_count)); + ++sreloc->reloc_count; + + /* If this reloc is against an external symbol, we do + not want to fiddle with the addend. Otherwise, we + need to include the symbol value so that it becomes + an addend for the dynamic reloc. */ + if (! relocate) + continue; + } + + break; + + default: + break; + } + + r = _bfd_final_link_relocate (howto, input_bfd, input_section, + contents, rela->r_offset, + relocation, rela->r_addend); + + if (r != bfd_reloc_ok) + { + switch (r) + { + default: + case bfd_reloc_outofrange: + abort (); + case bfd_reloc_overflow: + { + const char *name; + + if (h != NULL) + 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, rela->r_offset))) + return false; + } + break; + } + } + } + + return true; +} + +/* Finish up dynamic symbol handling. We set the contents of various + dynamic sections here. */ + +static boolean +elf64_x86_64_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 *sgot; + asection *srela; + bfd_vma plt_index; + bfd_vma got_offset; + Elf_Internal_Rela rela; + + /* This symbol has an entry in the procedure linkage table. Set + it up. */ + + BFD_ASSERT (h->dynindx != -1); + + splt = bfd_get_section_by_name (dynobj, ".plt"); + sgot = bfd_get_section_by_name (dynobj, ".got.plt"); + srela = bfd_get_section_by_name (dynobj, ".rela.plt"); + BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); + + /* Get the index in the procedure linkage table which + corresponds to this symbol. This is the index of this symbol + in all the symbols for which we are making plt entries. The + first entry in the procedure linkage table is reserved. */ + plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; + + /* Get the offset into the .got table of the entry that + corresponds to this function. Each .got entry is GOT_ENTRY_SIZE + bytes. The first three are reserved for the dynamic linker. */ + got_offset = (plt_index + 3) * GOT_ENTRY_SIZE; + + /* Fill in the entry in the procedure linkage table. */ + memcpy (splt->contents + h->plt.offset, elf64_x86_64_plt_entry, + PLT_ENTRY_SIZE); + + /* Insert the relocation positions of the plt section. The magic + numbers at the end of the statements are the positions of the + relocations in the plt section. */ + /* Put offset for jmp *name@GOTPCREL(%rip), since the + instruction uses 6 bytes, subtract this value. */ + bfd_put_32 (output_bfd, + (sgot->output_section->vma + + sgot->output_offset + + got_offset + - splt->output_section->vma + - splt->output_offset + - h->plt.offset + - 6), + splt->contents + h->plt.offset + 2); + /* Put relocation index. */ + bfd_put_32 (output_bfd, plt_index, + splt->contents + h->plt.offset + 7); + /* Put offset for jmp .PLT0. */ + bfd_put_32 (output_bfd, - (h->plt.offset + PLT_ENTRY_SIZE), + splt->contents + h->plt.offset + 12); + + /* Fill in the entry in the global offset table, initially this + points to the pushq instruction in the PLT which is at offset 6. */ + bfd_put_64 (output_bfd, (splt->output_section->vma + splt->output_offset + + h->plt.offset + 6), + sgot->contents + got_offset); + + /* Fill in the entry in the .rela.plt section. */ + rela.r_offset = (sgot->output_section->vma + + sgot->output_offset + + got_offset); + rela.r_info = ELF64_R_INFO (h->dynindx, R_X86_64_JUMP_SLOT); + rela.r_addend = 0; + bfd_elf64_swap_reloca_out (output_bfd, &rela, + ((Elf64_External_Rela *) srela->contents + + plt_index)); + + 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; + + /* This symbol has an entry in the global offset table. 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 &~ 1)); + + /* If this is a static link, or it is a -Bsymbolic link and the + symbol is defined locally or was forced to be local because + of a version file, we just want to emit a RELATIVE reloc. + The entry in the global offset table will already have been + initialized in the relocate_section function. */ + if (! elf_hash_table (info)->dynamic_sections_created + || (info->shared + && (info->symbolic || h->dynindx == -1) + && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) + { + BFD_ASSERT((h->got.offset & 1) != 0); + rela.r_info = ELF64_R_INFO (0, R_X86_64_RELATIVE); + rela.r_addend = (h->root.u.def.value + + h->root.u.def.section->output_section->vma + + h->root.u.def.section->output_offset); + } + else + { + BFD_ASSERT((h->got.offset & 1) == 0); + bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); + rela.r_info = ELF64_R_INFO (h->dynindx, R_X86_64_GLOB_DAT); + rela.r_addend = 0; + } + + bfd_elf64_swap_reloca_out (output_bfd, &rela, + ((Elf64_External_Rela *) srela->contents + + srela->reloc_count)); + ++srela->reloc_count; + } + + if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) + { + asection *s; + Elf_Internal_Rela rela; + + /* This symbol needs a copy reloc. Set it up. */ + + BFD_ASSERT (h->dynindx != -1 + && (h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak)); + + 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_X86_64_COPY); + rela.r_addend = 0; + bfd_elf64_swap_reloca_out (output_bfd, &rela, + ((Elf64_External_Rela *) s->contents + + s->reloc_count)); + ++s->reloc_count; + } + + /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ + if (strcmp (h->root.root.string, "_DYNAMIC") == 0 + || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) + sym->st_shndx = SHN_ABS; + + return true; +} + +/* Finish up the dynamic sections. */ + +static boolean +elf64_x86_64_finish_dynamic_sections (output_bfd, info) + bfd *output_bfd; + struct bfd_link_info *info; +{ + bfd *dynobj; + asection *sdyn; + asection *sgot; + + dynobj = elf_hash_table (info)->dynobj; + + sgot = bfd_get_section_by_name (dynobj, ".got.plt"); + BFD_ASSERT (sgot != NULL); + sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); + + if (elf_hash_table (info)->dynamic_sections_created) + { + asection *splt; + Elf64_External_Dyn *dyncon, *dynconend; + + BFD_ASSERT (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; + asection *s; + + bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); + + switch (dyn.d_tag) + { + default: + continue; + + case DT_PLTGOT: + name = ".got"; + goto get_vma; + + case DT_JMPREL: + name = ".rela.plt"; + + get_vma: + s = bfd_get_section_by_name (output_bfd, name); + BFD_ASSERT (s != NULL); + dyn.d_un.d_ptr = s->vma; + break; + + case DT_RELASZ: + /* FIXME: This comment and code is from elf64-alpha.c: */ + /* My interpretation of the TIS v1.1 ELF document indicates + that RELASZ should not include JMPREL. This is not what + the rest of the BFD does. It is, however, what the + glibc ld.so wants. Do this fixup here until we found + out who is right. */ + s = bfd_get_section_by_name (output_bfd, ".rela.plt"); + if (s) + { + /* Subtract JMPREL size from RELASZ. */ + dyn.d_un.d_val -= + (s->_cooked_size ? s->_cooked_size : s->_raw_size); + } + break; + + case DT_PLTRELSZ: + s = bfd_get_section_by_name (output_bfd, ".rela.plt"); + BFD_ASSERT (s != NULL); + dyn.d_un.d_val = + (s->_cooked_size != 0 ? s->_cooked_size : s->_raw_size); + break; + } + bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); + } + + /* Initialize the contents of the .plt section. */ + splt = bfd_get_section_by_name (dynobj, ".plt"); + BFD_ASSERT (splt != NULL); + if (splt->_raw_size > 0) + { + /* Fill in the first entry in the procedure linkage table. */ + memcpy (splt->contents, elf64_x86_64_plt0_entry, PLT_ENTRY_SIZE); + /* Add offset for pushq GOT+8(%rip), since the instruction + uses 6 bytes subtract this value. */ + bfd_put_32 (output_bfd, + (sgot->output_section->vma + + sgot->output_offset + + 8 + - splt->output_section->vma + - splt->output_offset + - 6), + splt->contents + 2); + /* Add offset for jmp *GOT+16(%rip). The 12 is the offset to + the end of the instruction. */ + bfd_put_32 (output_bfd, + (sgot->output_section->vma + + sgot->output_offset + + 16 + - splt->output_section->vma + - splt->output_offset + - 12), + splt->contents + 8); + + } + + 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. */ + 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); + /* Write GOT[1] and GOT[2], needed for the dynamic linker. */ + bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + GOT_ENTRY_SIZE); + bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + GOT_ENTRY_SIZE*2); + } + + elf_section_data (sgot->output_section)->this_hdr.sh_entsize = + GOT_ENTRY_SIZE; + + return true; +} + + +#define TARGET_LITTLE_SYM bfd_elf64_x86_64_vec +#define TARGET_LITTLE_NAME "elf64-x86-64" +#define ELF_ARCH bfd_arch_i386 +#define ELF_MACHINE_CODE EM_X86_64 +#define ELF_MAXPAGESIZE 0x100000 + +#define elf_backend_can_gc_sections 1 +#define elf_backend_want_got_plt 1 +#define elf_backend_plt_readonly 1 +#define elf_backend_want_plt_sym 0 +#define elf_backend_got_header_size (GOT_ENTRY_SIZE*3) +#define elf_backend_plt_header_size PLT_ENTRY_SIZE + +#define elf_info_to_howto elf64_x86_64_info_to_howto + +#define bfd_elf64_bfd_final_link _bfd_elf64_gc_common_final_link +#define bfd_elf64_bfd_link_hash_table_create \ + elf64_x86_64_link_hash_table_create +#define bfd_elf64_bfd_reloc_type_lookup elf64_x86_64_reloc_type_lookup + +#define elf_backend_adjust_dynamic_symbol elf64_x86_64_adjust_dynamic_symbol +#define elf_backend_check_relocs elf64_x86_64_check_relocs +#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections +#define elf_backend_finish_dynamic_sections \ + elf64_x86_64_finish_dynamic_sections +#define elf_backend_finish_dynamic_symbol elf64_x86_64_finish_dynamic_symbol +#define elf_backend_gc_mark_hook elf64_x86_64_gc_mark_hook +#define elf_backend_gc_sweep_hook elf64_x86_64_gc_sweep_hook +#define elf_backend_relocate_section elf64_x86_64_relocate_section +#define elf_backend_size_dynamic_sections elf64_x86_64_size_dynamic_sections +#define elf_backend_object_p elf64_x86_64_elf_object_p + +#include "elf64-target.h" diff --git a/contrib/binutils/bfd/elfxx-ia64.c b/contrib/binutils/bfd/elfxx-ia64.c index c86f7a9..ee69168 100644 --- a/contrib/binutils/bfd/elfxx-ia64.c +++ b/contrib/binutils/bfd/elfxx-ia64.c @@ -1437,7 +1437,7 @@ elfNN_ia64_hash_table_create (abfd) { struct elfNN_ia64_link_hash_table *ret; - ret = bfd_alloc (abfd, sizeof (*ret)); + ret = bfd_zalloc (abfd, sizeof (*ret)); if (!ret) return 0; if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, diff --git a/contrib/binutils/bfd/peXXigen.c b/contrib/binutils/bfd/peXXigen.c index 0e1eaea..a3141ba 100644 --- a/contrib/binutils/bfd/peXXigen.c +++ b/contrib/binutils/bfd/peXXigen.c @@ -1825,7 +1825,10 @@ _bfd_XX_print_private_bfd_data_common (abfd, vfile) #undef PF /* ctime implies '\n'. */ - fprintf (file, "\nTime/Date\t\t%s", ctime (&pe->coff.timestamp)); + { + time_t t = pe->coff.timestamp; + fprintf (file, "\nTime/Date\t\t%s", ctime (&t)); + } fprintf (file, "\nImageBase\t\t"); fprintf_vma (file, i->ImageBase); fprintf (file, "\nSectionAlignment\t"); |
