summaryrefslogtreecommitdiffstats
path: root/contrib/binutils/bfd/elf64-x86-64.c
diff options
context:
space:
mode:
authorobrien <obrien@FreeBSD.org>2009-01-19 17:25:17 +0000
committerobrien <obrien@FreeBSD.org>2009-01-19 17:25:17 +0000
commit2b02dfaa48ad11ff3ee427ee1db57fb6017a8a5e (patch)
treeaf590d7b357b1c28ab81f0cde1b0ea76a098fb7e /contrib/binutils/bfd/elf64-x86-64.c
parentcd5f96a9efbe194cb6e0506e727cb6d287247d69 (diff)
downloadFreeBSD-src-2b02dfaa48ad11ff3ee427ee1db57fb6017a8a5e.zip
FreeBSD-src-2b02dfaa48ad11ff3ee427ee1db57fb6017a8a5e.tar.gz
Rename vendor/binutils/*/contrib to vendor/binutils/*/x
Binutils has a "contrib" subdirectory - thus flattening cannot happen without renaming the upper level contrib directory in a first pass. Also, don't record this move and remove any keyword expansion.
Diffstat (limited to 'contrib/binutils/bfd/elf64-x86-64.c')
-rw-r--r--contrib/binutils/bfd/elf64-x86-64.c2790
1 files changed, 0 insertions, 2790 deletions
diff --git a/contrib/binutils/bfd/elf64-x86-64.c b/contrib/binutils/bfd/elf64-x86-64.c
deleted file mode 100644
index a1d6250..0000000
--- a/contrib/binutils/bfd/elf64-x86-64.c
+++ /dev/null
@@ -1,2790 +0,0 @@
-/* X86-64 specific support for 64-bit ELF
- Copyright 2000, 2001, 2002, 2003, 2004 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 "bfdlink.h"
-#include "libbfd.h"
-#include "elf-bfd.h"
-
-#include "elf/x86-64.h"
-
-/* 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, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_PC32", FALSE, 0xffffffff, 0xffffffff,
- TRUE),
- HOWTO(R_X86_64_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOT32", FALSE, 0xffffffff, 0xffffffff,
- FALSE),
- HOWTO(R_X86_64_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_PLT32", FALSE, 0xffffffff, 0xffffffff,
- TRUE),
- HOWTO(R_X86_64_COPY, 0, 2, 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, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOTPCREL", FALSE, 0xffffffff,
- 0xffffffff, TRUE),
- HOWTO(R_X86_64_32, 0, 2, 32, FALSE, 0, complain_overflow_unsigned,
- bfd_elf_generic_reloc, "R_X86_64_32", FALSE, 0xffffffff, 0xffffffff,
- FALSE),
- HOWTO(R_X86_64_32S, 0, 2, 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),
- HOWTO(R_X86_64_DTPMOD64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_DTPMOD64", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_DTPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_DTPOFF64", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_TPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_TPOFF64", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_TLSGD, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_TLSGD", FALSE, 0xffffffff,
- 0xffffffff, TRUE),
- HOWTO(R_X86_64_TLSLD, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_TLSLD", FALSE, 0xffffffff,
- 0xffffffff, TRUE),
- HOWTO(R_X86_64_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_DTPOFF32", FALSE, 0xffffffff,
- 0xffffffff, FALSE),
- HOWTO(R_X86_64_GOTTPOFF, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOTTPOFF", FALSE, 0xffffffff,
- 0xffffffff, TRUE),
- HOWTO(R_X86_64_TPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_TPOFF32", FALSE, 0xffffffff,
- 0xffffffff, FALSE),
-
-/* GNU extension to record C++ vtable hierarchy. */
- HOWTO (R_X86_64_GNU_VTINHERIT, 0, 4, 0, FALSE, 0, complain_overflow_dont,
- NULL, "R_X86_64_GNU_VTINHERIT", FALSE, 0, 0, FALSE),
-
-/* GNU extension to record C++ vtable member usage. */
- HOWTO (R_X86_64_GNU_VTENTRY, 0, 4, 0, FALSE, 0, complain_overflow_dont,
- _bfd_elf_rel_vtable_reloc_fn, "R_X86_64_GNU_VTENTRY", FALSE, 0, 0,
- FALSE)
-};
-
-/* 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, },
- { BFD_RELOC_X86_64_DTPMOD64, R_X86_64_DTPMOD64, },
- { BFD_RELOC_X86_64_DTPOFF64, R_X86_64_DTPOFF64, },
- { BFD_RELOC_X86_64_TPOFF64, R_X86_64_TPOFF64, },
- { BFD_RELOC_X86_64_TLSGD, R_X86_64_TLSGD, },
- { BFD_RELOC_X86_64_TLSLD, R_X86_64_TLSLD, },
- { BFD_RELOC_X86_64_DTPOFF32, R_X86_64_DTPOFF32, },
- { BFD_RELOC_X86_64_GOTTPOFF, R_X86_64_GOTTPOFF, },
- { BFD_RELOC_X86_64_TPOFF32, R_X86_64_TPOFF32, },
- { BFD_RELOC_VTABLE_INHERIT, R_X86_64_GNU_VTINHERIT, },
- { BFD_RELOC_VTABLE_ENTRY, R_X86_64_GNU_VTENTRY, },
-};
-
-
-/* Given a BFD reloc type, return a HOWTO structure. */
-static reloc_howto_type *
-elf64_x86_64_reloc_type_lookup (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[i];
- }
- return 0;
-}
-
-/* Given an x86_64 ELF reloc type, fill in an arelent structure. */
-
-static void
-elf64_x86_64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
- Elf_Internal_Rela *dst)
-{
- unsigned r_type, i;
-
- r_type = ELF64_R_TYPE (dst->r_info);
- if (r_type < (unsigned int) R_X86_64_GNU_VTINHERIT)
- {
- BFD_ASSERT (r_type <= (unsigned int) R_X86_64_TPOFF32);
- i = r_type;
- }
- else
- {
- BFD_ASSERT (r_type < (unsigned int) R_X86_64_max);
- i = r_type - ((unsigned int) R_X86_64_GNU_VTINHERIT - R_X86_64_TPOFF32 - 1);
- }
- cache_ptr->howto = &x86_64_elf_howto_table[i];
- BFD_ASSERT (r_type == cache_ptr->howto->type);
-}
-
-/* Support for core dump NOTE sections. */
-static bfd_boolean
-elf64_x86_64_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
-{
- int offset;
- size_t raw_size;
-
- switch (note->descsz)
- {
- default:
- return FALSE;
-
- case 336: /* sizeof(istruct elf_prstatus) on Linux/x86_64 */
- /* pr_cursig */
- elf_tdata (abfd)->core_signal
- = bfd_get_16 (abfd, note->descdata + 12);
-
- /* pr_pid */
- elf_tdata (abfd)->core_pid
- = bfd_get_32 (abfd, note->descdata + 32);
-
- /* pr_reg */
- offset = 112;
- raw_size = 216;
-
- break;
- }
-
- /* Make a ".reg/999" section. */
- return _bfd_elfcore_make_pseudosection (abfd, ".reg",
- raw_size, note->descpos + offset);
-}
-
-static bfd_boolean
-elf64_x86_64_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
-{
- switch (note->descsz)
- {
- default:
- return FALSE;
-
- case 136: /* sizeof(struct elf_prpsinfo) on Linux/x86_64 */
- elf_tdata (abfd)->core_program
- = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
- elf_tdata (abfd)->core_command
- = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
- }
-
- /* Note that for some reason, a spurious space is tacked
- onto the end of the args in some (at least one anyway)
- implementations, so strip it off if it exists. */
-
- {
- char *command = elf_tdata (abfd)->core_command;
- int n = strlen (command);
-
- if (0 < n && command[n - 1] == ' ')
- command[n - 1] = '\0';
- }
-
- return TRUE;
-}
-
-/* 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"
-
-/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
- copying dynamic variables from a shared lib into an app's dynbss
- section, and instead use a dynamic relocation to point into the
- shared lib. */
-#define ELIMINATE_COPY_RELOCS 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 as dynamic relocs in check_relocs for each symbol.
- This is so that it can later discard them if they are found to be
- unnecessary. We store the information in a field extending the
- regular ELF linker hash table. */
-
-struct elf64_x86_64_dyn_relocs
-{
- /* Next section. */
- struct elf64_x86_64_dyn_relocs *next;
-
- /* The input section of the reloc. */
- asection *sec;
-
- /* Total number of relocs copied for the input section. */
- bfd_size_type count;
-
- /* Number of pc-relative relocs copied for the input section. */
- bfd_size_type pc_count;
-};
-
-/* x86-64 ELF linker hash entry. */
-
-struct elf64_x86_64_link_hash_entry
-{
- struct elf_link_hash_entry elf;
-
- /* Track dynamic relocs copied for this symbol. */
- struct elf64_x86_64_dyn_relocs *dyn_relocs;
-
-#define GOT_UNKNOWN 0
-#define GOT_NORMAL 1
-#define GOT_TLS_GD 2
-#define GOT_TLS_IE 3
- unsigned char tls_type;
-};
-
-#define elf64_x86_64_hash_entry(ent) \
- ((struct elf64_x86_64_link_hash_entry *)(ent))
-
-struct elf64_x86_64_obj_tdata
-{
- struct elf_obj_tdata root;
-
- /* tls_type for each local got entry. */
- char *local_got_tls_type;
-};
-
-#define elf64_x86_64_tdata(abfd) \
- ((struct elf64_x86_64_obj_tdata *) (abfd)->tdata.any)
-
-#define elf64_x86_64_local_got_tls_type(abfd) \
- (elf64_x86_64_tdata (abfd)->local_got_tls_type)
-
-
-/* x86-64 ELF linker hash table. */
-
-struct elf64_x86_64_link_hash_table
-{
- struct elf_link_hash_table elf;
-
- /* Short-cuts to get to dynamic linker sections. */
- asection *sgot;
- asection *sgotplt;
- asection *srelgot;
- asection *splt;
- asection *srelplt;
- asection *sdynbss;
- asection *srelbss;
-
- union {
- bfd_signed_vma refcount;
- bfd_vma offset;
- } tls_ld_got;
-
- /* Small local sym to section mapping cache. */
- struct sym_sec_cache sym_sec;
-};
-
-/* 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 *
-link_hash_newfunc (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
- const char *string)
-{
- /* Allocate the structure if it has not already been allocated by a
- subclass. */
- if (entry == NULL)
- {
- entry = bfd_hash_allocate (table,
- sizeof (struct elf64_x86_64_link_hash_entry));
- if (entry == NULL)
- return entry;
- }
-
- /* Call the allocation method of the superclass. */
- entry = _bfd_elf_link_hash_newfunc (entry, table, string);
- if (entry != NULL)
- {
- struct elf64_x86_64_link_hash_entry *eh;
-
- eh = (struct elf64_x86_64_link_hash_entry *) entry;
- eh->dyn_relocs = NULL;
- eh->tls_type = GOT_UNKNOWN;
- }
-
- return entry;
-}
-
-/* Create an X86-64 ELF linker hash table. */
-
-static struct bfd_link_hash_table *
-elf64_x86_64_link_hash_table_create (bfd *abfd)
-{
- struct elf64_x86_64_link_hash_table *ret;
- bfd_size_type amt = sizeof (struct elf64_x86_64_link_hash_table);
-
- ret = (struct elf64_x86_64_link_hash_table *) bfd_malloc (amt);
- if (ret == NULL)
- return NULL;
-
- if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc))
- {
- free (ret);
- return NULL;
- }
-
- ret->sgot = NULL;
- ret->sgotplt = NULL;
- ret->srelgot = NULL;
- ret->splt = NULL;
- ret->srelplt = NULL;
- ret->sdynbss = NULL;
- ret->srelbss = NULL;
- ret->sym_sec.abfd = NULL;
- ret->tls_ld_got.refcount = 0;
-
- return &ret->elf.root;
-}
-
-/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
- shortcuts to them in our hash table. */
-
-static bfd_boolean
-create_got_section (bfd *dynobj, struct bfd_link_info *info)
-{
- struct elf64_x86_64_link_hash_table *htab;
-
- if (! _bfd_elf_create_got_section (dynobj, info))
- return FALSE;
-
- htab = elf64_x86_64_hash_table (info);
- htab->sgot = bfd_get_section_by_name (dynobj, ".got");
- htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
- if (!htab->sgot || !htab->sgotplt)
- abort ();
-
- htab->srelgot = bfd_make_section (dynobj, ".rela.got");
- if (htab->srelgot == NULL
- || ! bfd_set_section_flags (dynobj, htab->srelgot,
- (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY | SEC_LINKER_CREATED
- | SEC_READONLY))
- || ! bfd_set_section_alignment (dynobj, htab->srelgot, 3))
- return FALSE;
- return TRUE;
-}
-
-/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
- .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
- hash table. */
-
-static bfd_boolean
-elf64_x86_64_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
-{
- struct elf64_x86_64_link_hash_table *htab;
-
- htab = elf64_x86_64_hash_table (info);
- if (!htab->sgot && !create_got_section (dynobj, info))
- return FALSE;
-
- if (!_bfd_elf_create_dynamic_sections (dynobj, info))
- return FALSE;
-
- htab->splt = bfd_get_section_by_name (dynobj, ".plt");
- htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
- htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
- if (!info->shared)
- htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
-
- if (!htab->splt || !htab->srelplt || !htab->sdynbss
- || (!info->shared && !htab->srelbss))
- abort ();
-
- return TRUE;
-}
-
-/* Copy the extra info we tack onto an elf_link_hash_entry. */
-
-static void
-elf64_x86_64_copy_indirect_symbol (const struct elf_backend_data *bed,
- struct elf_link_hash_entry *dir,
- struct elf_link_hash_entry *ind)
-{
- struct elf64_x86_64_link_hash_entry *edir, *eind;
-
- edir = (struct elf64_x86_64_link_hash_entry *) dir;
- eind = (struct elf64_x86_64_link_hash_entry *) ind;
-
- if (eind->dyn_relocs != NULL)
- {
- if (edir->dyn_relocs != NULL)
- {
- struct elf64_x86_64_dyn_relocs **pp;
- struct elf64_x86_64_dyn_relocs *p;
-
- if (ind->root.type == bfd_link_hash_indirect)
- abort ();
-
- /* Add reloc counts against the weak sym to the strong sym
- list. Merge any entries against the same section. */
- for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
- {
- struct elf64_x86_64_dyn_relocs *q;
-
- for (q = edir->dyn_relocs; q != NULL; q = q->next)
- if (q->sec == p->sec)
- {
- q->pc_count += p->pc_count;
- q->count += p->count;
- *pp = p->next;
- break;
- }
- if (q == NULL)
- pp = &p->next;
- }
- *pp = edir->dyn_relocs;
- }
-
- edir->dyn_relocs = eind->dyn_relocs;
- eind->dyn_relocs = NULL;
- }
-
- if (ind->root.type == bfd_link_hash_indirect
- && dir->got.refcount <= 0)
- {
- edir->tls_type = eind->tls_type;
- eind->tls_type = GOT_UNKNOWN;
- }
-
- if (ELIMINATE_COPY_RELOCS
- && ind->root.type != bfd_link_hash_indirect
- && (dir->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
- /* If called to transfer flags for a weakdef during processing
- of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
- We clear it ourselves for ELIMINATE_COPY_RELOCS. */
- dir->elf_link_hash_flags |=
- (ind->elf_link_hash_flags & (ELF_LINK_HASH_REF_DYNAMIC
- | ELF_LINK_HASH_REF_REGULAR
- | ELF_LINK_HASH_REF_REGULAR_NONWEAK
- | ELF_LINK_HASH_NEEDS_PLT));
- else
- _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
-}
-
-static bfd_boolean
-elf64_x86_64_mkobject (bfd *abfd)
-{
- bfd_size_type amt = sizeof (struct elf64_x86_64_obj_tdata);
- abfd->tdata.any = bfd_zalloc (abfd, amt);
- if (abfd->tdata.any == NULL)
- return FALSE;
- return TRUE;
-}
-
-static bfd_boolean
-elf64_x86_64_elf_object_p (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;
-}
-
-static int
-elf64_x86_64_tls_transition (struct bfd_link_info *info, int r_type, int is_local)
-{
- if (info->shared)
- return r_type;
-
- switch (r_type)
- {
- case R_X86_64_TLSGD:
- case R_X86_64_GOTTPOFF:
- if (is_local)
- return R_X86_64_TPOFF32;
- return R_X86_64_GOTTPOFF;
- case R_X86_64_TLSLD:
- return R_X86_64_TPOFF32;
- }
-
- return r_type;
-}
-
-/* Look through the relocs for a section during the first phase, and
- calculate needed space in the global offset table, procedure
- linkage table, and dynamic reloc sections. */
-
-static bfd_boolean
-elf64_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
- const Elf_Internal_Rela *relocs)
-{
- struct elf64_x86_64_link_hash_table *htab;
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- const Elf_Internal_Rela *rel;
- const Elf_Internal_Rela *rel_end;
- asection *sreloc;
-
- if (info->relocatable)
- return TRUE;
-
- htab = elf64_x86_64_hash_table (info);
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (abfd);
-
- sreloc = NULL;
-
- rel_end = relocs + sec->reloc_count;
- for (rel = relocs; rel < rel_end; rel++)
- {
- unsigned int r_type;
- unsigned long r_symndx;
- struct elf_link_hash_entry *h;
-
- r_symndx = ELF64_R_SYM (rel->r_info);
- r_type = ELF64_R_TYPE (rel->r_info);
-
- if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
- {
- (*_bfd_error_handler) (_("%s: bad symbol index: %d"),
- bfd_archive_filename (abfd),
- r_symndx);
- return FALSE;
- }
-
- if (r_symndx < symtab_hdr->sh_info)
- h = NULL;
- else
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
-
- r_type = elf64_x86_64_tls_transition (info, r_type, h == NULL);
- switch (r_type)
- {
- case R_X86_64_TLSLD:
- htab->tls_ld_got.refcount += 1;
- goto create_got;
-
- case R_X86_64_TPOFF32:
- if (info->shared)
- {
- (*_bfd_error_handler)
- (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"),
- bfd_archive_filename (abfd),
- x86_64_elf_howto_table[r_type].name);
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
- break;
-
- case R_X86_64_GOTTPOFF:
- if (info->shared)
- info->flags |= DF_STATIC_TLS;
- /* Fall through */
-
- case R_X86_64_GOT32:
- case R_X86_64_GOTPCREL:
- case R_X86_64_TLSGD:
- /* This symbol requires a global offset table entry. */
- {
- int tls_type, old_tls_type;
-
- switch (r_type)
- {
- default: tls_type = GOT_NORMAL; break;
- case R_X86_64_TLSGD: tls_type = GOT_TLS_GD; break;
- case R_X86_64_GOTTPOFF: tls_type = GOT_TLS_IE; break;
- }
-
- if (h != NULL)
- {
- h->got.refcount += 1;
- old_tls_type = elf64_x86_64_hash_entry (h)->tls_type;
- }
- else
- {
- bfd_signed_vma *local_got_refcounts;
-
- /* This is a global offset table entry for a local symbol. */
- local_got_refcounts = elf_local_got_refcounts (abfd);
- if (local_got_refcounts == NULL)
- {
- bfd_size_type size;
-
- size = symtab_hdr->sh_info;
- size *= sizeof (bfd_signed_vma) + sizeof (char);
- local_got_refcounts = ((bfd_signed_vma *)
- bfd_zalloc (abfd, size));
- if (local_got_refcounts == NULL)
- return FALSE;
- elf_local_got_refcounts (abfd) = local_got_refcounts;
- elf64_x86_64_local_got_tls_type (abfd)
- = (char *) (local_got_refcounts + symtab_hdr->sh_info);
- }
- local_got_refcounts[r_symndx] += 1;
- old_tls_type
- = elf64_x86_64_local_got_tls_type (abfd) [r_symndx];
- }
-
- /* If a TLS symbol is accessed using IE at least once,
- there is no point to use dynamic model for it. */
- if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
- && (old_tls_type != GOT_TLS_GD || tls_type != GOT_TLS_IE))
- {
- if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
- tls_type = old_tls_type;
- else
- {
- (*_bfd_error_handler)
- (_("%s: %s' accessed both as normal and thread local symbol"),
- bfd_archive_filename (abfd),
- h ? h->root.root.string : "<local>");
- return FALSE;
- }
- }
-
- if (old_tls_type != tls_type)
- {
- if (h != NULL)
- elf64_x86_64_hash_entry (h)->tls_type = tls_type;
- else
- elf64_x86_64_local_got_tls_type (abfd) [r_symndx] = tls_type;
- }
- }
- /* Fall through */
-
- //case R_X86_64_GOTPCREL:
- create_got:
- if (htab->sgot == NULL)
- {
- if (htab->elf.dynobj == NULL)
- htab->elf.dynobj = abfd;
- if (!create_got_section (htab->elf.dynobj, info))
- return FALSE;
- }
- 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;
- h->plt.refcount += 1;
- break;
-
- case R_X86_64_8:
- case R_X86_64_16:
- case R_X86_64_32:
- case R_X86_64_32S:
- /* Let's help debug shared library creation. These relocs
- cannot be used in shared libs. Don't error out for
- sections we don't care about, such as debug sections or
- non-constant sections. */
- if (info->shared
- && (sec->flags & SEC_ALLOC) != 0
- && (sec->flags & SEC_READONLY) != 0)
- {
- (*_bfd_error_handler)
- (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"),
- bfd_archive_filename (abfd),
- x86_64_elf_howto_table[r_type].name);
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
- /* Fall through. */
-
- case R_X86_64_PC8:
- case R_X86_64_PC16:
- case R_X86_64_PC32:
- case R_X86_64_64:
- if (h != NULL && !info->shared)
- {
- /* If this reloc is in a read-only section, we might
- need a copy reloc. We can't check reliably at this
- stage whether the section is read-only, as input
- sections have not yet been mapped to output sections.
- Tentatively set the flag for now, and correct in
- adjust_dynamic_symbol. */
- h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
-
- /* We may need a .plt entry if the function this reloc
- refers to is in a shared lib. */
- h->plt.refcount += 1;
- }
-
- /* If we are creating a shared library, and this is a reloc
- against a global symbol, or a non PC relative reloc
- against a local symbol, then we need to copy the reloc
- into the shared library. However, if we are linking with
- -Bsymbolic, we do not need to copy a reloc against a
- global symbol which is defined in an object we are
- including in the link (i.e., DEF_REGULAR is set). At
- this point we have not seen all the input files, so it is
- possible that DEF_REGULAR is not set now but will be set
- later (it is never cleared). In case of a weak definition,
- DEF_REGULAR may be cleared later by a strong definition in
- a shared library. We account for that possibility below by
- storing information in the relocs_copied field of the hash
- table entry. A similar situation occurs when creating
- shared libraries and symbol visibility changes render the
- symbol local.
-
- If on the other hand, we are creating an executable, we
- may need to keep relocations for symbols satisfied by a
- dynamic library if we manage to avoid copy relocs for the
- symbol. */
- if ((info->shared
- && (sec->flags & SEC_ALLOC) != 0
- && (((r_type != R_X86_64_PC8)
- && (r_type != R_X86_64_PC16)
- && (r_type != R_X86_64_PC32))
- || (h != NULL
- && (! info->symbolic
- || h->root.type == bfd_link_hash_defweak
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))))
- || (ELIMINATE_COPY_RELOCS
- && !info->shared
- && (sec->flags & SEC_ALLOC) != 0
- && h != NULL
- && (h->root.type == bfd_link_hash_defweak
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0)))
- {
- struct elf64_x86_64_dyn_relocs *p;
- struct elf64_x86_64_dyn_relocs **head;
-
- /* We must copy these reloc types into the output file.
- Create a reloc section in dynobj and make room for
- this reloc. */
- if (sreloc == NULL)
- {
- const char *name;
- bfd *dynobj;
-
- 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;
-
- if (strncmp (name, ".rela", 5) != 0
- || strcmp (bfd_get_section_name (abfd, sec),
- name + 5) != 0)
- {
- (*_bfd_error_handler)
- (_("%s: bad relocation section name `%s\'"),
- bfd_archive_filename (abfd), name);
- }
-
- if (htab->elf.dynobj == NULL)
- htab->elf.dynobj = abfd;
-
- dynobj = htab->elf.dynobj;
-
- 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;
- }
- elf_section_data (sec)->sreloc = sreloc;
- }
-
- /* If this is a global symbol, we count the number of
- relocations we need for this symbol. */
- if (h != NULL)
- {
- head = &((struct elf64_x86_64_link_hash_entry *) h)->dyn_relocs;
- }
- else
- {
- /* Track dynamic relocs needed for local syms too.
- We really need local syms available to do this
- easily. Oh well. */
-
- asection *s;
- s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
- sec, r_symndx);
- if (s == NULL)
- return FALSE;
-
- head = ((struct elf64_x86_64_dyn_relocs **)
- &elf_section_data (s)->local_dynrel);
- }
-
- p = *head;
- if (p == NULL || p->sec != sec)
- {
- bfd_size_type amt = sizeof *p;
- p = ((struct elf64_x86_64_dyn_relocs *)
- bfd_alloc (htab->elf.dynobj, amt));
- if (p == NULL)
- return FALSE;
- p->next = *head;
- *head = p;
- p->sec = sec;
- p->count = 0;
- p->pc_count = 0;
- }
-
- p->count += 1;
- if (r_type == R_X86_64_PC8
- || r_type == R_X86_64_PC16
- || r_type == R_X86_64_PC32)
- p->pc_count += 1;
- }
- break;
-
- /* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
- case R_X86_64_GNU_VTINHERIT:
- if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return FALSE;
- break;
-
- /* This relocation describes which C++ vtable entries are actually
- used. Record for later use during GC. */
- case R_X86_64_GNU_VTENTRY:
- if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return FALSE;
- break;
-
- default:
- break;
- }
- }
-
- return TRUE;
-}
-
-/* Return the section that should be marked against GC for a given
- relocation. */
-
-static asection *
-elf64_x86_64_gc_mark_hook (asection *sec,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- Elf_Internal_Rela *rel,
- struct elf_link_hash_entry *h,
- Elf_Internal_Sym *sym)
-{
- if (h != NULL)
- {
- switch (ELF64_R_TYPE (rel->r_info))
- {
- case R_X86_64_GNU_VTINHERIT:
- case R_X86_64_GNU_VTENTRY:
- break;
-
- default:
- 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
- return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
-
- return NULL;
-}
-
-/* Update the got entry reference counts for the section being removed. */
-
-static bfd_boolean
-elf64_x86_64_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
- 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;
-
- elf_section_data (sec)->local_dynrel = NULL;
-
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (abfd);
- local_got_refcounts = elf_local_got_refcounts (abfd);
-
- relend = relocs + sec->reloc_count;
- for (rel = relocs; rel < relend; rel++)
- {
- unsigned long r_symndx;
- unsigned int r_type;
- struct elf_link_hash_entry *h = NULL;
-
- r_symndx = ELF64_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- struct elf64_x86_64_link_hash_entry *eh;
- struct elf64_x86_64_dyn_relocs **pp;
- struct elf64_x86_64_dyn_relocs *p;
-
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- eh = (struct elf64_x86_64_link_hash_entry *) h;
-
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
- if (p->sec == sec)
- {
- /* Everything must go for SEC. */
- *pp = p->next;
- break;
- }
- }
-
- r_type = ELF64_R_TYPE (rel->r_info);
- r_type = elf64_x86_64_tls_transition (info, r_type, h != NULL);
- switch (r_type)
- {
- case R_X86_64_TLSLD:
- if (elf64_x86_64_hash_table (info)->tls_ld_got.refcount > 0)
- elf64_x86_64_hash_table (info)->tls_ld_got.refcount -= 1;
- break;
-
- case R_X86_64_TLSGD:
- case R_X86_64_GOTTPOFF:
- case R_X86_64_GOT32:
- case R_X86_64_GOTPCREL:
- if (h != NULL)
- {
- if (h->got.refcount > 0)
- h->got.refcount -= 1;
- }
- else if (local_got_refcounts != NULL)
- {
- if (local_got_refcounts[r_symndx] > 0)
- local_got_refcounts[r_symndx] -= 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_PC8:
- case R_X86_64_PC16:
- case R_X86_64_PC32:
- if (info->shared)
- break;
- /* Fall thru */
-
- case R_X86_64_PLT32:
- if (h != NULL)
- {
- 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 bfd_boolean
-elf64_x86_64_adjust_dynamic_symbol (struct bfd_link_info *info,
- struct elf_link_hash_entry *h)
-{
- struct elf64_x86_64_link_hash_table *htab;
- asection *s;
- unsigned int power_of_two;
-
- /* 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 (h->plt.refcount <= 0
- || SYMBOL_CALLS_LOCAL (info, h)
- || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
- && h->root.type == bfd_link_hash_undefweak))
- {
- /* This case can occur if we saw a 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;
- }
- else
- /* It's possible that we incorrectly decided a .plt reloc was
- needed for an R_X86_64_PC32 reloc to a non-function sym in
- check_relocs. We can't decide accurately between function and
- non-function syms in check-relocs; Objects loaded later in
- the link may change h->type. So fix it now. */
- h->plt.offset = (bfd_vma) -1;
-
- /* If this is a weak symbol, and there is a real definition, the
- processor independent code will have arranged for us to see the
- real definition first, and we can just use the same value. */
- if (h->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;
- if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
- h->elf_link_hash_flags
- = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
- | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
- 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;
-
- /* If -z nocopyreloc was given, we won't generate them either. */
- if (info->nocopyreloc)
- {
- h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
- return TRUE;
- }
-
- if (ELIMINATE_COPY_RELOCS)
- {
- struct elf64_x86_64_link_hash_entry * eh;
- struct elf64_x86_64_dyn_relocs *p;
-
- eh = (struct elf64_x86_64_link_hash_entry *) h;
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
- {
- s = p->sec->output_section;
- if (s != NULL && (s->flags & SEC_READONLY) != 0)
- break;
- }
-
- /* If we didn't find any dynamic relocs in read-only sections, then
- we'll be keeping the dynamic relocs and avoiding the copy reloc. */
- if (p == NULL)
- {
- h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
- 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. */
-
- htab = elf64_x86_64_hash_table (info);
-
- /* 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. */
- if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
- {
- htab->srelbss->_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 = htab->sdynbss;
- s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two));
- if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
- {
- if (! bfd_set_section_alignment (htab->elf.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;
-}
-
-/* Allocate space in .plt, .got and associated reloc sections for
- dynamic relocs. */
-
-static bfd_boolean
-allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
-{
- struct bfd_link_info *info;
- struct elf64_x86_64_link_hash_table *htab;
- struct elf64_x86_64_link_hash_entry *eh;
- struct elf64_x86_64_dyn_relocs *p;
-
- if (h->root.type == bfd_link_hash_indirect)
- return TRUE;
-
- if (h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
- info = (struct bfd_link_info *) inf;
- htab = elf64_x86_64_hash_table (info);
-
- if (htab->elf.dynamic_sections_created
- && h->plt.refcount > 0)
- {
- /* Make sure this symbol is output as a dynamic symbol.
- Undefined weak syms won't yet be marked as dynamic. */
- if (h->dynindx == -1
- && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
- {
- if (! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
-
- if (info->shared
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
- {
- asection *s = htab->splt;
-
- /* 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;
-
- h->plt.offset = s->_raw_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 = h->plt.offset;
- }
-
- /* 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. */
- htab->sgotplt->_raw_size += GOT_ENTRY_SIZE;
-
- /* We also need to make an entry in the .rela.plt section. */
- htab->srelplt->_raw_size += sizeof (Elf64_External_Rela);
- }
- else
- {
- h->plt.offset = (bfd_vma) -1;
- h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
- }
- }
- else
- {
- h->plt.offset = (bfd_vma) -1;
- h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
- }
-
- /* If R_X86_64_GOTTPOFF symbol is now local to the binary,
- make it a R_X86_64_TPOFF32 requiring no GOT entry. */
- if (h->got.refcount > 0
- && !info->shared
- && h->dynindx == -1
- && elf64_x86_64_hash_entry (h)->tls_type == GOT_TLS_IE)
- h->got.offset = (bfd_vma) -1;
- else if (h->got.refcount > 0)
- {
- asection *s;
- bfd_boolean dyn;
- int tls_type = elf64_x86_64_hash_entry (h)->tls_type;
-
- /* Make sure this symbol is output as a dynamic symbol.
- Undefined weak syms won't yet be marked as dynamic. */
- if (h->dynindx == -1
- && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
- {
- if (! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
-
- s = htab->sgot;
- h->got.offset = s->_raw_size;
- s->_raw_size += GOT_ENTRY_SIZE;
- /* R_X86_64_TLSGD needs 2 consecutive GOT slots. */
- if (tls_type == GOT_TLS_GD)
- s->_raw_size += GOT_ENTRY_SIZE;
- dyn = htab->elf.dynamic_sections_created;
- /* R_X86_64_TLSGD needs one dynamic relocation if local symbol
- and two if global.
- R_X86_64_GOTTPOFF needs one dynamic relocation. */
- if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
- || tls_type == GOT_TLS_IE)
- htab->srelgot->_raw_size += sizeof (Elf64_External_Rela);
- else if (tls_type == GOT_TLS_GD)
- htab->srelgot->_raw_size += 2 * sizeof (Elf64_External_Rela);
- else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- || h->root.type != bfd_link_hash_undefweak)
- && (info->shared
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
- htab->srelgot->_raw_size += sizeof (Elf64_External_Rela);
- }
- else
- h->got.offset = (bfd_vma) -1;
-
- eh = (struct elf64_x86_64_link_hash_entry *) h;
- if (eh->dyn_relocs == NULL)
- return TRUE;
-
- /* In the shared -Bsymbolic case, discard space allocated for
- dynamic pc-relative relocs against symbols which turn out to be
- defined in regular objects. For the normal shared case, discard
- space for pc-relative relocs that have become local due to symbol
- visibility changes. */
-
- if (info->shared)
- {
- /* Relocs that use pc_count are those that appear on a call
- insn, or certain REL relocs that can generated via assembly.
- We want calls to protected symbols to resolve directly to the
- function rather than going via the plt. If people want
- function pointer comparisons to work as expected then they
- should avoid writing weird assembly. */
- if (SYMBOL_CALLS_LOCAL (info, h))
- {
- struct elf64_x86_64_dyn_relocs **pp;
-
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
- {
- p->count -= p->pc_count;
- p->pc_count = 0;
- if (p->count == 0)
- *pp = p->next;
- else
- pp = &p->next;
- }
- }
-
- /* Also discard relocs on undefined weak syms with non-default
- visibility. */
- if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
- && h->root.type == bfd_link_hash_undefweak)
- eh->dyn_relocs = NULL;
- }
- else if (ELIMINATE_COPY_RELOCS)
- {
- /* For the non-shared case, discard space for relocs against
- symbols which turn out to need copy relocs or are not
- dynamic. */
-
- if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
- && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
- || (htab->elf.dynamic_sections_created
- && (h->root.type == bfd_link_hash_undefweak
- || h->root.type == bfd_link_hash_undefined))))
- {
- /* Make sure this symbol is output as a dynamic symbol.
- Undefined weak syms won't yet be marked as dynamic. */
- if (h->dynindx == -1
- && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
- {
- if (! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
-
- /* If that succeeded, we know we'll be keeping all the
- relocs. */
- if (h->dynindx != -1)
- goto keep;
- }
-
- eh->dyn_relocs = NULL;
-
- keep: ;
- }
-
- /* Finally, allocate space. */
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
- {
- asection *sreloc = elf_section_data (p->sec)->sreloc;
- sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela);
- }
-
- return TRUE;
-}
-
-/* Find any dynamic relocs that apply to read-only sections. */
-
-static bfd_boolean
-readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
-{
- struct elf64_x86_64_link_hash_entry *eh;
- struct elf64_x86_64_dyn_relocs *p;
-
- if (h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
- eh = (struct elf64_x86_64_link_hash_entry *) h;
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
- {
- asection *s = p->sec->output_section;
-
- if (s != NULL && (s->flags & SEC_READONLY) != 0)
- {
- struct bfd_link_info *info = (struct bfd_link_info *) inf;
-
- info->flags |= DF_TEXTREL;
-
- /* Not an error, just cut short the traversal. */
- return FALSE;
- }
- }
- return TRUE;
-}
-
-/* Set the sizes of the dynamic sections. */
-
-static bfd_boolean
-elf64_x86_64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info)
-{
- struct elf64_x86_64_link_hash_table *htab;
- bfd *dynobj;
- asection *s;
- bfd_boolean relocs;
- bfd *ibfd;
-
- htab = elf64_x86_64_hash_table (info);
- dynobj = htab->elf.dynobj;
- if (dynobj == NULL)
- abort ();
-
- if (htab->elf.dynamic_sections_created)
- {
- /* Set the contents of the .interp section to the interpreter. */
- if (info->executable)
- {
- s = bfd_get_section_by_name (dynobj, ".interp");
- if (s == NULL)
- abort ();
- s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
- s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
- }
- }
-
- /* Set up .got offsets for local syms, and space for local dynamic
- relocs. */
- for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
- {
- bfd_signed_vma *local_got;
- bfd_signed_vma *end_local_got;
- char *local_tls_type;
- bfd_size_type locsymcount;
- Elf_Internal_Shdr *symtab_hdr;
- asection *srel;
-
- if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
- continue;
-
- for (s = ibfd->sections; s != NULL; s = s->next)
- {
- struct elf64_x86_64_dyn_relocs *p;
-
- for (p = *((struct elf64_x86_64_dyn_relocs **)
- &elf_section_data (s)->local_dynrel);
- p != NULL;
- p = p->next)
- {
- if (!bfd_is_abs_section (p->sec)
- && bfd_is_abs_section (p->sec->output_section))
- {
- /* Input section has been discarded, either because
- it is a copy of a linkonce section or due to
- linker script /DISCARD/, so we'll be discarding
- the relocs too. */
- }
- else if (p->count != 0)
- {
- srel = elf_section_data (p->sec)->sreloc;
- srel->_raw_size += p->count * sizeof (Elf64_External_Rela);
- if ((p->sec->output_section->flags & SEC_READONLY) != 0)
- info->flags |= DF_TEXTREL;
-
- }
- }
- }
-
- local_got = elf_local_got_refcounts (ibfd);
- if (!local_got)
- continue;
-
- symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
- locsymcount = symtab_hdr->sh_info;
- end_local_got = local_got + locsymcount;
- local_tls_type = elf64_x86_64_local_got_tls_type (ibfd);
- s = htab->sgot;
- srel = htab->srelgot;
- for (; local_got < end_local_got; ++local_got, ++local_tls_type)
- {
- if (*local_got > 0)
- {
- *local_got = s->_raw_size;
- s->_raw_size += GOT_ENTRY_SIZE;
- if (*local_tls_type == GOT_TLS_GD)
- s->_raw_size += GOT_ENTRY_SIZE;
- if (info->shared
- || *local_tls_type == GOT_TLS_GD
- || *local_tls_type == GOT_TLS_IE)
- srel->_raw_size += sizeof (Elf64_External_Rela);
- }
- else
- *local_got = (bfd_vma) -1;
- }
- }
-
- if (htab->tls_ld_got.refcount > 0)
- {
- /* Allocate 2 got entries and 1 dynamic reloc for R_X86_64_TLSLD
- relocs. */
- htab->tls_ld_got.offset = htab->sgot->_raw_size;
- htab->sgot->_raw_size += 2 * GOT_ENTRY_SIZE;
- htab->srelgot->_raw_size += sizeof (Elf64_External_Rela);
- }
- else
- htab->tls_ld_got.offset = -1;
-
- /* Allocate global sym .plt and .got entries, and space for global
- sym dynamic relocs. */
- elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
-
- /* We now have determined the sizes of the various dynamic sections.
- Allocate memory for them. */
- relocs = FALSE;
- for (s = dynobj->sections; s != NULL; s = s->next)
- {
- if ((s->flags & SEC_LINKER_CREATED) == 0)
- continue;
-
- if (s == htab->splt
- || s == htab->sgot
- || s == htab->sgotplt)
- {
- /* Strip this section if we don't need it; see the
- comment below. */
- }
- else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
- {
- if (s->_raw_size != 0 && s != htab->srelplt)
- relocs = 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
- {
- /* It's not one of our sections, so don't allocate space. */
- continue;
- }
-
- 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. */
-
- _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)
- return FALSE;
- }
-
- if (htab->elf.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. */
-#define add_dynamic_entry(TAG, VAL) \
- _bfd_elf_add_dynamic_entry (info, TAG, VAL)
-
- if (info->executable)
- {
- if (!add_dynamic_entry (DT_DEBUG, 0))
- return FALSE;
- }
-
- if (htab->splt->_raw_size != 0)
- {
- if (!add_dynamic_entry (DT_PLTGOT, 0)
- || !add_dynamic_entry (DT_PLTRELSZ, 0)
- || !add_dynamic_entry (DT_PLTREL, DT_RELA)
- || !add_dynamic_entry (DT_JMPREL, 0))
- return FALSE;
- }
-
- if (relocs)
- {
- 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 any dynamic relocs apply to a read-only section,
- then we need a DT_TEXTREL entry. */
- if ((info->flags & DF_TEXTREL) == 0)
- elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
- (PTR) info);
-
- if ((info->flags & DF_TEXTREL) != 0)
- {
- if (!add_dynamic_entry (DT_TEXTREL, 0))
- return FALSE;
- }
- }
- }
-#undef add_dynamic_entry
-
- return TRUE;
-}
-
-/* Return the base VMA address which should be subtracted from real addresses
- when resolving @dtpoff relocation.
- This is PT_TLS segment p_vaddr. */
-
-static bfd_vma
-dtpoff_base (struct bfd_link_info *info)
-{
- /* If tls_sec is NULL, we should have signalled an error already. */
- if (elf_hash_table (info)->tls_sec == NULL)
- return 0;
- return elf_hash_table (info)->tls_sec->vma;
-}
-
-/* Return the relocation value for @tpoff relocation
- if STT_TLS virtual address is ADDRESS. */
-
-static bfd_vma
-tpoff (struct bfd_link_info *info, bfd_vma address)
-{
- struct elf_link_hash_table *htab = elf_hash_table (info);
-
- /* If tls_segment is NULL, we should have signalled an error already. */
- if (htab->tls_sec == NULL)
- return 0;
- return address - htab->tls_size - htab->tls_sec->vma;
-}
-
-/* Relocate an x86_64 ELF section. */
-
-static bfd_boolean
-elf64_x86_64_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
- bfd *input_bfd, asection *input_section,
- bfd_byte *contents, Elf_Internal_Rela *relocs,
- Elf_Internal_Sym *local_syms,
- asection **local_sections)
-{
- struct elf64_x86_64_link_hash_table *htab;
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- bfd_vma *local_got_offsets;
- Elf_Internal_Rela *rel;
- Elf_Internal_Rela *relend;
-
- if (info->relocatable)
- return TRUE;
-
- htab = elf64_x86_64_hash_table (info);
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (input_bfd);
- local_got_offsets = elf_local_got_offsets (input_bfd);
-
- rel = relocs;
- relend = relocs + input_section->reloc_count;
- for (; rel < relend; rel++)
- {
- unsigned 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 off;
- bfd_vma relocation;
- bfd_boolean unresolved_reloc;
- bfd_reloc_status_type r;
- int tls_type;
-
- r_type = ELF64_R_TYPE (rel->r_info);
- if (r_type == (int) R_X86_64_GNU_VTINHERIT
- || r_type == (int) R_X86_64_GNU_VTENTRY)
- continue;
-
- if (r_type >= R_X86_64_max)
- {
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
-
- howto = x86_64_elf_howto_table + r_type;
- 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
- {
- bfd_boolean warned;
-
- RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
- r_symndx, symtab_hdr, sym_hashes,
- h, sec, relocation,
- unresolved_reloc, warned);
- }
- /* 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. */
- if (htab->sgot == NULL)
- abort ();
-
- if (h != NULL)
- {
- bfd_boolean dyn;
-
- off = h->got.offset;
- dyn = htab->elf.dynamic_sections_created;
-
- if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
- || (info->shared
- && SYMBOL_REFERENCES_LOCAL (info, h))
- || (ELF_ST_VISIBILITY (h->other)
- && h->root.type == bfd_link_hash_undefweak))
- {
- /* 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,
- htab->sgot->contents + off);
- h->got.offset |= 1;
- }
- }
- else
- unresolved_reloc = FALSE;
- }
- else
- {
- if (local_got_offsets == NULL)
- abort ();
-
- 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,
- htab->sgot->contents + off);
-
- if (info->shared)
- {
- asection *s;
- Elf_Internal_Rela outrel;
- bfd_byte *loc;
-
- /* We need to generate a R_X86_64_RELATIVE reloc
- for the dynamic linker. */
- s = htab->srelgot;
- if (s == NULL)
- abort ();
-
- outrel.r_offset = (htab->sgot->output_section->vma
- + htab->sgot->output_offset
- + off);
- outrel.r_info = ELF64_R_INFO (0, R_X86_64_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);
- }
-
- local_got_offsets[r_symndx] |= 1;
- }
- }
-
- if (off >= (bfd_vma) -2)
- abort ();
-
- relocation = htab->sgot->output_offset + off;
- if (r_type == R_X86_64_GOTPCREL)
- relocation += htab->sgot->output_section->vma;
-
- 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
- || htab->splt == NULL)
- {
- /* We didn't make a PLT entry for this symbol. This
- happens when statically linking PIC code, or when
- using -Bsymbolic. */
- break;
- }
-
- relocation = (htab->splt->output_section->vma
- + htab->splt->output_offset
- + h->plt.offset);
- unresolved_reloc = FALSE;
- break;
-
- case R_X86_64_PC8:
- case R_X86_64_PC16:
- case R_X86_64_PC32:
- 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. */
-
- /* r_symndx will be zero only for relocs against symbols
- from removed linkonce sections, or sections discarded by
- a linker script. */
- if (r_symndx == 0
- || (input_section->flags & SEC_ALLOC) == 0)
- break;
-
- if ((info->shared
- && (h == NULL
- || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- || h->root.type != bfd_link_hash_undefweak)
- && ((r_type != R_X86_64_PC8
- && r_type != R_X86_64_PC16
- && r_type != R_X86_64_PC32)
- || !SYMBOL_CALLS_LOCAL (info, h)))
- || (ELIMINATE_COPY_RELOCS
- && !info->shared
- && h != NULL
- && h->dynindx != -1
- && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
- && (((h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_DYNAMIC) != 0
- && (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0)
- || h->root.type == bfd_link_hash_undefweak
- || h->root.type == bfd_link_hash_undefined)))
- {
- Elf_Internal_Rela outrel;
- bfd_byte *loc;
- bfd_boolean skip, relocate;
- asection *sreloc;
-
- /* When generating a shared object, these relocations
- are copied into the output file to be resolved at run
- time. */
- 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);
-
- if (skip)
- memset (&outrel, 0, sizeof outrel);
-
- /* h->dynindx may be -1 if this symbol was marked to
- become local. */
- else if (h != NULL
- && h->dynindx != -1
- && (r_type == R_X86_64_PC8
- || r_type == R_X86_64_PC16
- || r_type == R_X86_64_PC32
- || !info->shared
- || !info->symbolic
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))
- {
- outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
- outrel.r_addend = rel->r_addend;
- }
- else
- {
- /* This symbol is local, or marked to become local. */
- if (r_type == R_X86_64_64)
- {
- relocate = TRUE;
- outrel.r_info = ELF64_R_INFO (0, R_X86_64_RELATIVE);
- outrel.r_addend = relocation + rel->r_addend;
- }
- else
- {
- long sindx;
-
- if (bfd_is_abs_section (sec))
- sindx = 0;
- else if (sec == NULL || sec->owner == NULL)
- {
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
- else
- {
- asection *osec;
-
- osec = sec->output_section;
- sindx = elf_section_data (osec)->dynindx;
- BFD_ASSERT (sindx > 0);
- }
-
- outrel.r_info = ELF64_R_INFO (sindx, r_type);
- outrel.r_addend = relocation + rel->r_addend;
- }
- }
-
- sreloc = elf_section_data (input_section)->sreloc;
- if (sreloc == NULL)
- abort ();
-
- loc = sreloc->contents;
- loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
- bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
-
- /* 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;
-
- case R_X86_64_TLSGD:
- case R_X86_64_GOTTPOFF:
- r_type = elf64_x86_64_tls_transition (info, r_type, h == NULL);
- tls_type = GOT_UNKNOWN;
- if (h == NULL && local_got_offsets)
- tls_type = elf64_x86_64_local_got_tls_type (input_bfd) [r_symndx];
- else if (h != NULL)
- {
- tls_type = elf64_x86_64_hash_entry (h)->tls_type;
- if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
- r_type = R_X86_64_TPOFF32;
- }
- if (r_type == R_X86_64_TLSGD)
- {
- if (tls_type == GOT_TLS_IE)
- r_type = R_X86_64_GOTTPOFF;
- }
-
- if (r_type == R_X86_64_TPOFF32)
- {
- BFD_ASSERT (! unresolved_reloc);
- if (ELF64_R_TYPE (rel->r_info) == R_X86_64_TLSGD)
- {
- unsigned int i;
- static unsigned char tlsgd[8]
- = { 0x66, 0x48, 0x8d, 0x3d, 0x66, 0x66, 0x48, 0xe8 };
-
- /* GD->LE transition.
- .byte 0x66; leaq foo@tlsgd(%rip), %rdi
- .word 0x6666; rex64; call __tls_get_addr@plt
- Change it into:
- movq %fs:0, %rax
- leaq foo@tpoff(%rax), %rax */
- BFD_ASSERT (rel->r_offset >= 4);
- for (i = 0; i < 4; i++)
- BFD_ASSERT (bfd_get_8 (input_bfd,
- contents + rel->r_offset - 4 + i)
- == tlsgd[i]);
- BFD_ASSERT (rel->r_offset + 12 <= input_section->_raw_size);
- for (i = 0; i < 4; i++)
- BFD_ASSERT (bfd_get_8 (input_bfd,
- contents + rel->r_offset + 4 + i)
- == tlsgd[i+4]);
- BFD_ASSERT (rel + 1 < relend);
- BFD_ASSERT (ELF64_R_TYPE (rel[1].r_info) == R_X86_64_PLT32);
- memcpy (contents + rel->r_offset - 4,
- "\x64\x48\x8b\x04\x25\0\0\0\0\x48\x8d\x80\0\0\0",
- 16);
- bfd_put_32 (output_bfd, tpoff (info, relocation),
- contents + rel->r_offset + 8);
- /* Skip R_X86_64_PLT32. */
- rel++;
- continue;
- }
- else
- {
- unsigned int val, type, reg;
-
- /* IE->LE transition:
- Originally it can be one of:
- movq foo@gottpoff(%rip), %reg
- addq foo@gottpoff(%rip), %reg
- We change it into:
- movq $foo, %reg
- leaq foo(%reg), %reg
- addq $foo, %reg. */
- BFD_ASSERT (rel->r_offset >= 3);
- val = bfd_get_8 (input_bfd, contents + rel->r_offset - 3);
- BFD_ASSERT (val == 0x48 || val == 0x4c);
- type = bfd_get_8 (input_bfd, contents + rel->r_offset - 2);
- BFD_ASSERT (type == 0x8b || type == 0x03);
- reg = bfd_get_8 (input_bfd, contents + rel->r_offset - 1);
- BFD_ASSERT ((reg & 0xc7) == 5);
- reg >>= 3;
- BFD_ASSERT (rel->r_offset + 4 <= input_section->_raw_size);
- if (type == 0x8b)
- {
- /* movq */
- if (val == 0x4c)
- bfd_put_8 (output_bfd, 0x49,
- contents + rel->r_offset - 3);
- bfd_put_8 (output_bfd, 0xc7,
- contents + rel->r_offset - 2);
- bfd_put_8 (output_bfd, 0xc0 | reg,
- contents + rel->r_offset - 1);
- }
- else if (reg == 4)
- {
- /* addq -> addq - addressing with %rsp/%r12 is
- special */
- if (val == 0x4c)
- bfd_put_8 (output_bfd, 0x49,
- contents + rel->r_offset - 3);
- bfd_put_8 (output_bfd, 0x81,
- contents + rel->r_offset - 2);
- bfd_put_8 (output_bfd, 0xc0 | reg,
- contents + rel->r_offset - 1);
- }
- else
- {
- /* addq -> leaq */
- if (val == 0x4c)
- bfd_put_8 (output_bfd, 0x4d,
- contents + rel->r_offset - 3);
- bfd_put_8 (output_bfd, 0x8d,
- contents + rel->r_offset - 2);
- bfd_put_8 (output_bfd, 0x80 | reg | (reg << 3),
- contents + rel->r_offset - 1);
- }
- bfd_put_32 (output_bfd, tpoff (info, relocation),
- contents + rel->r_offset);
- continue;
- }
- }
-
- if (htab->sgot == NULL)
- abort ();
-
- if (h != NULL)
- off = h->got.offset;
- else
- {
- if (local_got_offsets == NULL)
- abort ();
-
- off = local_got_offsets[r_symndx];
- }
-
- if ((off & 1) != 0)
- off &= ~1;
- else
- {
- Elf_Internal_Rela outrel;
- bfd_byte *loc;
- int dr_type, indx;
-
- if (htab->srelgot == NULL)
- abort ();
-
- outrel.r_offset = (htab->sgot->output_section->vma
- + htab->sgot->output_offset + off);
-
- indx = h && h->dynindx != -1 ? h->dynindx : 0;
- if (r_type == R_X86_64_TLSGD)
- dr_type = R_X86_64_DTPMOD64;
- else
- dr_type = R_X86_64_TPOFF64;
-
- bfd_put_64 (output_bfd, 0, htab->sgot->contents + off);
- outrel.r_addend = 0;
- if (dr_type == R_X86_64_TPOFF64 && indx == 0)
- outrel.r_addend = relocation - dtpoff_base (info);
- outrel.r_info = ELF64_R_INFO (indx, dr_type);
-
- loc = htab->srelgot->contents;
- loc += htab->srelgot->reloc_count++ * sizeof (Elf64_External_Rela);
- bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
-
- if (r_type == R_X86_64_TLSGD)
- {
- if (indx == 0)
- {
- BFD_ASSERT (! unresolved_reloc);
- bfd_put_64 (output_bfd,
- relocation - dtpoff_base (info),
- htab->sgot->contents + off + GOT_ENTRY_SIZE);
- }
- else
- {
- bfd_put_64 (output_bfd, 0,
- htab->sgot->contents + off + GOT_ENTRY_SIZE);
- outrel.r_info = ELF64_R_INFO (indx,
- R_X86_64_DTPOFF64);
- outrel.r_offset += GOT_ENTRY_SIZE;
- htab->srelgot->reloc_count++;
- loc += sizeof (Elf64_External_Rela);
- bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
- }
- }
-
- if (h != NULL)
- h->got.offset |= 1;
- else
- local_got_offsets[r_symndx] |= 1;
- }
-
- if (off >= (bfd_vma) -2)
- abort ();
- if (r_type == ELF64_R_TYPE (rel->r_info))
- {
- relocation = htab->sgot->output_section->vma
- + htab->sgot->output_offset + off;
- unresolved_reloc = FALSE;
- }
- else
- {
- unsigned int i;
- static unsigned char tlsgd[8]
- = { 0x66, 0x48, 0x8d, 0x3d, 0x66, 0x66, 0x48, 0xe8 };
-
- /* GD->IE transition.
- .byte 0x66; leaq foo@tlsgd(%rip), %rdi
- .word 0x6666; rex64; call __tls_get_addr@plt
- Change it into:
- movq %fs:0, %rax
- addq foo@gottpoff(%rip), %rax */
- BFD_ASSERT (rel->r_offset >= 4);
- for (i = 0; i < 4; i++)
- BFD_ASSERT (bfd_get_8 (input_bfd,
- contents + rel->r_offset - 4 + i)
- == tlsgd[i]);
- BFD_ASSERT (rel->r_offset + 12 <= input_section->_raw_size);
- for (i = 0; i < 4; i++)
- BFD_ASSERT (bfd_get_8 (input_bfd,
- contents + rel->r_offset + 4 + i)
- == tlsgd[i+4]);
- BFD_ASSERT (rel + 1 < relend);
- BFD_ASSERT (ELF64_R_TYPE (rel[1].r_info) == R_X86_64_PLT32);
- memcpy (contents + rel->r_offset - 4,
- "\x64\x48\x8b\x04\x25\0\0\0\0\x48\x03\x05\0\0\0",
- 16);
-
- relocation = (htab->sgot->output_section->vma
- + htab->sgot->output_offset + off
- - rel->r_offset
- - input_section->output_section->vma
- - input_section->output_offset
- - 12);
- bfd_put_32 (output_bfd, relocation,
- contents + rel->r_offset + 8);
- /* Skip R_X86_64_PLT32. */
- rel++;
- continue;
- }
- break;
-
- case R_X86_64_TLSLD:
- if (! info->shared)
- {
- /* LD->LE transition:
- Ensure it is:
- leaq foo@tlsld(%rip), %rdi; call __tls_get_addr@plt.
- We change it into:
- .word 0x6666; .byte 0x66; movl %fs:0, %rax. */
- BFD_ASSERT (rel->r_offset >= 3);
- BFD_ASSERT (bfd_get_8 (input_bfd, contents + rel->r_offset - 3)
- == 0x48);
- BFD_ASSERT (bfd_get_8 (input_bfd, contents + rel->r_offset - 2)
- == 0x8d);
- BFD_ASSERT (bfd_get_8 (input_bfd, contents + rel->r_offset - 1)
- == 0x3d);
- BFD_ASSERT (rel->r_offset + 9 <= input_section->_raw_size);
- BFD_ASSERT (bfd_get_8 (input_bfd, contents + rel->r_offset + 4)
- == 0xe8);
- BFD_ASSERT (rel + 1 < relend);
- BFD_ASSERT (ELF64_R_TYPE (rel[1].r_info) == R_X86_64_PLT32);
- memcpy (contents + rel->r_offset - 3,
- "\x66\x66\x66\x64\x48\x8b\x04\x25\0\0\0", 12);
- /* Skip R_X86_64_PLT32. */
- rel++;
- continue;
- }
-
- if (htab->sgot == NULL)
- abort ();
-
- off = htab->tls_ld_got.offset;
- if (off & 1)
- off &= ~1;
- else
- {
- Elf_Internal_Rela outrel;
- bfd_byte *loc;
-
- if (htab->srelgot == NULL)
- abort ();
-
- outrel.r_offset = (htab->sgot->output_section->vma
- + htab->sgot->output_offset + off);
-
- bfd_put_64 (output_bfd, 0,
- htab->sgot->contents + off);
- bfd_put_64 (output_bfd, 0,
- htab->sgot->contents + off + GOT_ENTRY_SIZE);
- outrel.r_info = ELF64_R_INFO (0, R_X86_64_DTPMOD64);
- outrel.r_addend = 0;
- loc = htab->srelgot->contents;
- loc += htab->srelgot->reloc_count++ * sizeof (Elf64_External_Rela);
- bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
- htab->tls_ld_got.offset |= 1;
- }
- relocation = htab->sgot->output_section->vma
- + htab->sgot->output_offset + off;
- unresolved_reloc = FALSE;
- break;
-
- case R_X86_64_DTPOFF32:
- if (info->shared || (input_section->flags & SEC_CODE) == 0)
- relocation -= dtpoff_base (info);
- else
- relocation = tpoff (info, relocation);
- break;
-
- case R_X86_64_TPOFF32:
- BFD_ASSERT (! info->shared);
- relocation = tpoff (info, relocation);
- break;
-
- default:
- break;
- }
-
- /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
- because such sections are not SEC_ALLOC and thus ld.so will
- not process them. */
- if (unresolved_reloc
- && !((input_section->flags & SEC_DEBUGGING) != 0
- && (h->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);
-
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, rel->r_addend);
-
- if (r != bfd_reloc_ok)
- {
- 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 (r == bfd_reloc_overflow)
- {
-
- if (! ((*info->callbacks->reloc_overflow)
- (info, name, howto->name, (bfd_vma) 0,
- input_bfd, input_section, rel->r_offset)))
- return FALSE;
- }
- else
- {
- (*_bfd_error_handler)
- (_("%s(%s+0x%lx): reloc against `%s': error %d"),
- bfd_archive_filename (input_bfd),
- bfd_get_section_name (input_bfd, input_section),
- (long) rel->r_offset, name, (int) r);
- return FALSE;
- }
- }
- }
-
- return TRUE;
-}
-
-/* Finish up dynamic symbol handling. We set the contents of various
- dynamic sections here. */
-
-static bfd_boolean
-elf64_x86_64_finish_dynamic_symbol (bfd *output_bfd,
- struct bfd_link_info *info,
- struct elf_link_hash_entry *h,
- Elf_Internal_Sym *sym)
-{
- struct elf64_x86_64_link_hash_table *htab;
-
- htab = elf64_x86_64_hash_table (info);
-
- if (h->plt.offset != (bfd_vma) -1)
- {
- bfd_vma plt_index;
- bfd_vma got_offset;
- Elf_Internal_Rela rela;
- bfd_byte *loc;
-
- /* This symbol has an entry in the procedure linkage table. Set
- it up. */
- if (h->dynindx == -1
- || htab->splt == NULL
- || htab->sgotplt == NULL
- || htab->srelplt == NULL)
- abort ();
-
- /* 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 (htab->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,
- (htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset
- + got_offset
- - htab->splt->output_section->vma
- - htab->splt->output_offset
- - h->plt.offset
- - 6),
- htab->splt->contents + h->plt.offset + 2);
- /* Put relocation index. */
- bfd_put_32 (output_bfd, plt_index,
- htab->splt->contents + h->plt.offset + 7);
- /* Put offset for jmp .PLT0. */
- bfd_put_32 (output_bfd, - (h->plt.offset + PLT_ENTRY_SIZE),
- htab->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, (htab->splt->output_section->vma
- + htab->splt->output_offset
- + h->plt.offset + 6),
- htab->sgotplt->contents + got_offset);
-
- /* Fill in the entry in the .rela.plt section. */
- rela.r_offset = (htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset
- + got_offset);
- rela.r_info = ELF64_R_INFO (h->dynindx, R_X86_64_JUMP_SLOT);
- rela.r_addend = 0;
- loc = htab->srelplt->contents + plt_index * 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. This is a clue
- for the dynamic linker, to make function pointer
- comparisons work between an application and shared
- library. */
- sym->st_shndx = SHN_UNDEF;
- }
- }
-
- if (h->got.offset != (bfd_vma) -1
- && elf64_x86_64_hash_entry (h)->tls_type != GOT_TLS_GD
- && elf64_x86_64_hash_entry (h)->tls_type != GOT_TLS_IE)
- {
- Elf_Internal_Rela rela;
- bfd_byte *loc;
-
- /* This symbol has an entry in the global offset table. Set it
- up. */
- if (htab->sgot == NULL || htab->srelgot == NULL)
- abort ();
-
- rela.r_offset = (htab->sgot->output_section->vma
- + htab->sgot->output_offset
- + (h->got.offset &~ (bfd_vma) 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 (info->shared
- && SYMBOL_REFERENCES_LOCAL (info, h))
- {
- 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,
- htab->sgot->contents + h->got.offset);
- rela.r_info = ELF64_R_INFO (h->dynindx, R_X86_64_GLOB_DAT);
- rela.r_addend = 0;
- }
-
- loc = htab->srelgot->contents;
- loc += htab->srelgot->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)
- {
- Elf_Internal_Rela rela;
- bfd_byte *loc;
-
- /* This symbol needs a copy reloc. Set it up. */
-
- if (h->dynindx == -1
- || (h->root.type != bfd_link_hash_defined
- && h->root.type != bfd_link_hash_defweak)
- || htab->srelbss == NULL)
- abort ();
-
- 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;
- loc = htab->srelbss->contents;
- loc += htab->srelbss->reloc_count++ * sizeof (Elf64_External_Rela);
- bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
- }
-
- /* 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;
-}
-
-/* Used to decide how to sort relocs in an optimal manner for the
- dynamic linker, before writing them out. */
-
-static enum elf_reloc_type_class
-elf64_x86_64_reloc_type_class (const Elf_Internal_Rela *rela)
-{
- switch ((int) ELF64_R_TYPE (rela->r_info))
- {
- case R_X86_64_RELATIVE:
- return reloc_class_relative;
- case R_X86_64_JUMP_SLOT:
- return reloc_class_plt;
- case R_X86_64_COPY:
- return reloc_class_copy;
- default:
- return reloc_class_normal;
- }
-}
-
-/* Finish up the dynamic sections. */
-
-static bfd_boolean
-elf64_x86_64_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
-{
- struct elf64_x86_64_link_hash_table *htab;
- bfd *dynobj;
- asection *sdyn;
-
- htab = elf64_x86_64_hash_table (info);
- dynobj = htab->elf.dynobj;
- sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
-
- if (htab->elf.dynamic_sections_created)
- {
- Elf64_External_Dyn *dyncon, *dynconend;
-
- if (sdyn == NULL || htab->sgot == NULL)
- abort ();
-
- dyncon = (Elf64_External_Dyn *) sdyn->contents;
- dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
- for (; dyncon < dynconend; dyncon++)
- {
- Elf_Internal_Dyn dyn;
- asection *s;
-
- bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
-
- switch (dyn.d_tag)
- {
- default:
- continue;
-
- case DT_PLTGOT:
- dyn.d_un.d_ptr = htab->sgot->output_section->vma;
- break;
-
- case DT_JMPREL:
- dyn.d_un.d_ptr = htab->srelplt->output_section->vma;
- break;
-
- case DT_PLTRELSZ:
- s = htab->srelplt->output_section;
- if (s->_cooked_size != 0)
- dyn.d_un.d_val = s->_cooked_size;
- else
- dyn.d_un.d_val = s->_raw_size;
- break;
-
- case DT_RELASZ:
- /* The procedure linkage table relocs (DT_JMPREL) should
- not be included in the overall relocs (DT_RELA).
- Therefore, we override the DT_RELASZ entry here to
- make it not include the JMPREL relocs. Since the
- linker script arranges for .rela.plt to follow all
- other relocation sections, we don't have to worry
- about changing the DT_RELA entry. */
- if (htab->srelplt != NULL)
- {
- s = htab->srelplt->output_section;
- if (s->_cooked_size != 0)
- dyn.d_un.d_val -= s->_cooked_size;
- else
- dyn.d_un.d_val -= s->_raw_size;
- }
- break;
- }
-
- bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
- }
-
- /* Fill in the special first entry in the procedure linkage table. */
- if (htab->splt && htab->splt->_raw_size > 0)
- {
- /* Fill in the first entry in the procedure linkage table. */
- memcpy (htab->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,
- (htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset
- + 8
- - htab->splt->output_section->vma
- - htab->splt->output_offset
- - 6),
- htab->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,
- (htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset
- + 16
- - htab->splt->output_section->vma
- - htab->splt->output_offset
- - 12),
- htab->splt->contents + 8);
-
- elf_section_data (htab->splt->output_section)->this_hdr.sh_entsize =
- PLT_ENTRY_SIZE;
- }
- }
-
- if (htab->sgotplt)
- {
- /* Fill in the first three entries in the global offset table. */
- if (htab->sgotplt->_raw_size > 0)
- {
- /* Set the first entry in the global offset table to the address of
- the dynamic section. */
- if (sdyn == NULL)
- bfd_put_64 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents);
- else
- bfd_put_64 (output_bfd,
- sdyn->output_section->vma + sdyn->output_offset,
- htab->sgotplt->contents);
- /* Write GOT[1] and GOT[2], needed for the dynamic linker. */
- bfd_put_64 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + GOT_ENTRY_SIZE);
- bfd_put_64 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + GOT_ENTRY_SIZE*2);
- }
-
- elf_section_data (htab->sgotplt->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_can_refcount 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_rela_normal 1
-
-#define elf_info_to_howto elf64_x86_64_info_to_howto
-
-#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_copy_indirect_symbol elf64_x86_64_copy_indirect_symbol
-#define elf_backend_create_dynamic_sections elf64_x86_64_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_grok_prstatus elf64_x86_64_grok_prstatus
-#define elf_backend_grok_psinfo elf64_x86_64_grok_psinfo
-#define elf_backend_reloc_type_class elf64_x86_64_reloc_type_class
-#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
-#define bfd_elf64_mkobject elf64_x86_64_mkobject
-
-#include "elf64-target.h"
OpenPOWER on IntegriCloud