| Line 1... |
Line 1... |
/* X86-64 specific support for 64-bit ELF
|
/* X86-64 specific support for 64-bit ELF
|
Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
|
Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
|
Free Software Foundation, Inc.
|
Free Software Foundation, Inc.
|
Contributed by Jan Hubicka <jh@suse.cz>.
|
Contributed by Jan Hubicka <jh@suse.cz>.
|
|
|
This file is part of BFD, the Binary File Descriptor library.
|
This file is part of BFD, the Binary File Descriptor library.
|
|
|
| Line 24... |
Line 24... |
#include "bfd.h"
|
#include "bfd.h"
|
#include "bfdlink.h"
|
#include "bfdlink.h"
|
#include "libbfd.h"
|
#include "libbfd.h"
|
#include "elf-bfd.h"
|
#include "elf-bfd.h"
|
#include "bfd_stdint.h"
|
#include "bfd_stdint.h"
|
|
#include "objalloc.h"
|
|
#include "hashtab.h"
|
|
|
#include "elf/x86-64.h"
|
#include "elf/x86-64.h"
|
|
|
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
|
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
|
#define MINUS_ONE (~ (bfd_vma) 0)
|
#define MINUS_ONE (~ (bfd_vma) 0)
|
| Line 141... |
Line 143... |
FALSE, 0, 0, FALSE),
|
FALSE, 0, 0, FALSE),
|
HOWTO(R_X86_64_TLSDESC, 0, 4, 64, FALSE, 0,
|
HOWTO(R_X86_64_TLSDESC, 0, 4, 64, FALSE, 0,
|
complain_overflow_bitfield, bfd_elf_generic_reloc,
|
complain_overflow_bitfield, bfd_elf_generic_reloc,
|
"R_X86_64_TLSDESC",
|
"R_X86_64_TLSDESC",
|
FALSE, MINUS_ONE, MINUS_ONE, FALSE),
|
FALSE, MINUS_ONE, MINUS_ONE, FALSE),
|
|
HOWTO(R_X86_64_IRELATIVE, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
|
|
bfd_elf_generic_reloc, "R_X86_64_IRELATIVE", FALSE, MINUS_ONE,
|
|
MINUS_ONE, FALSE),
|
|
|
/* We have a gap in the reloc numbers here.
|
/* We have a gap in the reloc numbers here.
|
R_X86_64_standard counts the number up to this point, and
|
R_X86_64_standard counts the number up to this point, and
|
R_X86_64_vt_offset is the value to subtract from a reloc type of
|
R_X86_64_vt_offset is the value to subtract from a reloc type of
|
R_X86_64_GNU_VT* to form an index into this table. */
|
R_X86_64_GNU_VT* to form an index into this table. */
|
#define R_X86_64_standard (R_X86_64_TLSDESC + 1)
|
#define R_X86_64_standard (R_X86_64_IRELATIVE + 1)
|
#define R_X86_64_vt_offset (R_X86_64_GNU_VTINHERIT - R_X86_64_standard)
|
#define R_X86_64_vt_offset (R_X86_64_GNU_VTINHERIT - R_X86_64_standard)
|
|
|
/* GNU extension to record C++ vtable hierarchy. */
|
/* GNU extension to record C++ vtable hierarchy. */
|
HOWTO (R_X86_64_GNU_VTINHERIT, 0, 4, 0, FALSE, 0, complain_overflow_dont,
|
HOWTO (R_X86_64_GNU_VTINHERIT, 0, 4, 0, FALSE, 0, complain_overflow_dont,
|
NULL, "R_X86_64_GNU_VTINHERIT", FALSE, 0, 0, FALSE),
|
NULL, "R_X86_64_GNU_VTINHERIT", FALSE, 0, 0, FALSE),
|
| Line 159... |
Line 164... |
HOWTO (R_X86_64_GNU_VTENTRY, 0, 4, 0, FALSE, 0, complain_overflow_dont,
|
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,
|
_bfd_elf_rel_vtable_reloc_fn, "R_X86_64_GNU_VTENTRY", FALSE, 0, 0,
|
FALSE)
|
FALSE)
|
};
|
};
|
|
|
|
#define IS_X86_64_PCREL_TYPE(TYPE) \
|
|
( ((TYPE) == R_X86_64_PC8) \
|
|
|| ((TYPE) == R_X86_64_PC16) \
|
|
|| ((TYPE) == R_X86_64_PC32) \
|
|
|| ((TYPE) == R_X86_64_PC64))
|
|
|
/* Map BFD relocs to the x86_64 elf relocs. */
|
/* Map BFD relocs to the x86_64 elf relocs. */
|
struct elf_reloc_map
|
struct elf_reloc_map
|
{
|
{
|
bfd_reloc_code_real_type bfd_reloc_val;
|
bfd_reloc_code_real_type bfd_reloc_val;
|
unsigned char elf_reloc_val;
|
unsigned char elf_reloc_val;
|
| Line 203... |
Line 214... |
{ BFD_RELOC_X86_64_GOTPLT64, R_X86_64_GOTPLT64, },
|
{ BFD_RELOC_X86_64_GOTPLT64, R_X86_64_GOTPLT64, },
|
{ BFD_RELOC_X86_64_PLTOFF64, R_X86_64_PLTOFF64, },
|
{ BFD_RELOC_X86_64_PLTOFF64, R_X86_64_PLTOFF64, },
|
{ BFD_RELOC_X86_64_GOTPC32_TLSDESC, R_X86_64_GOTPC32_TLSDESC, },
|
{ BFD_RELOC_X86_64_GOTPC32_TLSDESC, R_X86_64_GOTPC32_TLSDESC, },
|
{ BFD_RELOC_X86_64_TLSDESC_CALL, R_X86_64_TLSDESC_CALL, },
|
{ BFD_RELOC_X86_64_TLSDESC_CALL, R_X86_64_TLSDESC_CALL, },
|
{ BFD_RELOC_X86_64_TLSDESC, R_X86_64_TLSDESC, },
|
{ BFD_RELOC_X86_64_TLSDESC, R_X86_64_TLSDESC, },
|
|
{ BFD_RELOC_X86_64_IRELATIVE, R_X86_64_IRELATIVE, },
|
{ BFD_RELOC_VTABLE_INHERIT, R_X86_64_GNU_VTINHERIT, },
|
{ BFD_RELOC_VTABLE_INHERIT, R_X86_64_GNU_VTINHERIT, },
|
{ BFD_RELOC_VTABLE_ENTRY, R_X86_64_GNU_VTENTRY, },
|
{ BFD_RELOC_VTABLE_ENTRY, R_X86_64_GNU_VTENTRY, },
|
};
|
};
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
| Line 382... |
Line 394... |
0, 0, 0, 0, /* replaced with index into relocation table. */
|
0, 0, 0, 0, /* replaced with index into relocation table. */
|
0xe9, /* jmp relative */
|
0xe9, /* jmp relative */
|
0, 0, 0, 0 /* replaced with offset to start of .plt0. */
|
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. */
|
/* x86-64 ELF linker hash entry. */
|
|
|
struct elf64_x86_64_link_hash_entry
|
struct elf64_x86_64_link_hash_entry
|
{
|
{
|
struct elf_link_hash_entry elf;
|
struct elf_link_hash_entry elf;
|
|
|
/* Track dynamic relocs copied for this symbol. */
|
/* Track dynamic relocs copied for this symbol. */
|
struct elf64_x86_64_dyn_relocs *dyn_relocs;
|
struct elf_dyn_relocs *dyn_relocs;
|
|
|
#define GOT_UNKNOWN 0
|
#define GOT_UNKNOWN 0
|
#define GOT_NORMAL 1
|
#define GOT_NORMAL 1
|
#define GOT_TLS_GD 2
|
#define GOT_TLS_GD 2
|
#define GOT_TLS_IE 3
|
#define GOT_TLS_IE 3
|
| Line 474... |
Line 465... |
struct elf64_x86_64_link_hash_table
|
struct elf64_x86_64_link_hash_table
|
{
|
{
|
struct elf_link_hash_table elf;
|
struct elf_link_hash_table elf;
|
|
|
/* Short-cuts to get to dynamic linker sections. */
|
/* Short-cuts to get to dynamic linker sections. */
|
asection *sgot;
|
|
asection *sgotplt;
|
|
asection *srelgot;
|
|
asection *splt;
|
|
asection *srelplt;
|
|
asection *sdynbss;
|
asection *sdynbss;
|
asection *srelbss;
|
asection *srelbss;
|
|
|
/* The offset into splt of the PLT entry for the TLS descriptor
|
/* The offset into splt of the PLT entry for the TLS descriptor
|
resolver. Special values are 0, if not necessary (or not found
|
resolver. Special values are 0, if not necessary (or not found
|
| Line 499... |
Line 485... |
} tls_ld_got;
|
} tls_ld_got;
|
|
|
/* The amount of space used by the jump slots in the GOT. */
|
/* The amount of space used by the jump slots in the GOT. */
|
bfd_vma sgotplt_jump_table_size;
|
bfd_vma sgotplt_jump_table_size;
|
|
|
/* Small local sym to section mapping cache. */
|
/* Small local sym cache. */
|
struct sym_sec_cache sym_sec;
|
struct sym_cache sym_cache;
|
|
|
|
/* _TLS_MODULE_BASE_ symbol. */
|
|
struct bfd_link_hash_entry *tls_module_base;
|
|
|
|
/* Used by local STT_GNU_IFUNC symbols. */
|
|
htab_t loc_hash_table;
|
|
void *loc_hash_memory;
|
};
|
};
|
|
|
/* Get the x86-64 ELF linker hash table from a link_info structure. */
|
/* Get the x86-64 ELF linker hash table from a link_info structure. */
|
|
|
#define elf64_x86_64_hash_table(p) \
|
#define elf64_x86_64_hash_table(p) \
|
((struct elf64_x86_64_link_hash_table *) ((p)->hash))
|
((struct elf64_x86_64_link_hash_table *) ((p)->hash))
|
|
|
#define elf64_x86_64_compute_jump_table_size(htab) \
|
#define elf64_x86_64_compute_jump_table_size(htab) \
|
((htab)->srelplt->reloc_count * GOT_ENTRY_SIZE)
|
((htab)->elf.srelplt->reloc_count * GOT_ENTRY_SIZE)
|
|
|
/* Create an entry in an x86-64 ELF linker hash table. */
|
/* Create an entry in an x86-64 ELF linker hash table. */
|
|
|
static struct bfd_hash_entry *
|
static struct bfd_hash_entry *
|
link_hash_newfunc (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
|
elf64_x86_64_link_hash_newfunc (struct bfd_hash_entry *entry,
|
|
struct bfd_hash_table *table,
|
const char *string)
|
const char *string)
|
{
|
{
|
/* Allocate the structure if it has not already been allocated by a
|
/* Allocate the structure if it has not already been allocated by a
|
subclass. */
|
subclass. */
|
if (entry == NULL)
|
if (entry == NULL)
|
{
|
{
|
entry = bfd_hash_allocate (table,
|
entry = (struct bfd_hash_entry *)
|
|
bfd_hash_allocate (table,
|
sizeof (struct elf64_x86_64_link_hash_entry));
|
sizeof (struct elf64_x86_64_link_hash_entry));
|
if (entry == NULL)
|
if (entry == NULL)
|
return entry;
|
return entry;
|
}
|
}
|
|
|
| Line 542... |
Line 537... |
}
|
}
|
|
|
return entry;
|
return entry;
|
}
|
}
|
|
|
|
/* Compute a hash of a local hash entry. We use elf_link_hash_entry
|
|
for local symbol so that we can handle local STT_GNU_IFUNC symbols
|
|
as global symbol. We reuse indx and dynstr_index for local symbol
|
|
hash since they aren't used by global symbols in this backend. */
|
|
|
|
static hashval_t
|
|
elf64_x86_64_local_htab_hash (const void *ptr)
|
|
{
|
|
struct elf_link_hash_entry *h
|
|
= (struct elf_link_hash_entry *) ptr;
|
|
return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
|
|
}
|
|
|
|
/* Compare local hash entries. */
|
|
|
|
static int
|
|
elf64_x86_64_local_htab_eq (const void *ptr1, const void *ptr2)
|
|
{
|
|
struct elf_link_hash_entry *h1
|
|
= (struct elf_link_hash_entry *) ptr1;
|
|
struct elf_link_hash_entry *h2
|
|
= (struct elf_link_hash_entry *) ptr2;
|
|
|
|
return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
|
|
}
|
|
|
|
/* Find and/or create a hash entry for local symbol. */
|
|
|
|
static struct elf_link_hash_entry *
|
|
elf64_x86_64_get_local_sym_hash (struct elf64_x86_64_link_hash_table *htab,
|
|
bfd *abfd, const Elf_Internal_Rela *rel,
|
|
bfd_boolean create)
|
|
{
|
|
struct elf64_x86_64_link_hash_entry e, *ret;
|
|
asection *sec = abfd->sections;
|
|
hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id,
|
|
ELF64_R_SYM (rel->r_info));
|
|
void **slot;
|
|
|
|
e.elf.indx = sec->id;
|
|
e.elf.dynstr_index = ELF64_R_SYM (rel->r_info);
|
|
slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
|
|
create ? INSERT : NO_INSERT);
|
|
|
|
if (!slot)
|
|
return NULL;
|
|
|
|
if (*slot)
|
|
{
|
|
ret = (struct elf64_x86_64_link_hash_entry *) *slot;
|
|
return &ret->elf;
|
|
}
|
|
|
|
ret = (struct elf64_x86_64_link_hash_entry *)
|
|
objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
|
|
sizeof (struct elf64_x86_64_link_hash_entry));
|
|
if (ret)
|
|
{
|
|
memset (ret, 0, sizeof (*ret));
|
|
ret->elf.indx = sec->id;
|
|
ret->elf.dynstr_index = ELF64_R_SYM (rel->r_info);
|
|
ret->elf.dynindx = -1;
|
|
ret->elf.plt.offset = (bfd_vma) -1;
|
|
ret->elf.got.offset = (bfd_vma) -1;
|
|
*slot = ret;
|
|
}
|
|
return &ret->elf;
|
|
}
|
|
|
/* Create an X86-64 ELF linker hash table. */
|
/* Create an X86-64 ELF linker hash table. */
|
|
|
static struct bfd_link_hash_table *
|
static struct bfd_link_hash_table *
|
elf64_x86_64_link_hash_table_create (bfd *abfd)
|
elf64_x86_64_link_hash_table_create (bfd *abfd)
|
{
|
{
|
| Line 554... |
Line 618... |
|
|
ret = (struct elf64_x86_64_link_hash_table *) bfd_malloc (amt);
|
ret = (struct elf64_x86_64_link_hash_table *) bfd_malloc (amt);
|
if (ret == NULL)
|
if (ret == NULL)
|
return NULL;
|
return NULL;
|
|
|
if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
|
if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
|
|
elf64_x86_64_link_hash_newfunc,
|
sizeof (struct elf64_x86_64_link_hash_entry)))
|
sizeof (struct elf64_x86_64_link_hash_entry)))
|
{
|
{
|
free (ret);
|
free (ret);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
ret->sgot = NULL;
|
|
ret->sgotplt = NULL;
|
|
ret->srelgot = NULL;
|
|
ret->splt = NULL;
|
|
ret->srelplt = NULL;
|
|
ret->sdynbss = NULL;
|
ret->sdynbss = NULL;
|
ret->srelbss = NULL;
|
ret->srelbss = NULL;
|
ret->sym_sec.abfd = NULL;
|
ret->sym_cache.abfd = NULL;
|
ret->tlsdesc_plt = 0;
|
ret->tlsdesc_plt = 0;
|
ret->tlsdesc_got = 0;
|
ret->tlsdesc_got = 0;
|
ret->tls_ld_got.refcount = 0;
|
ret->tls_ld_got.refcount = 0;
|
ret->sgotplt_jump_table_size = 0;
|
ret->sgotplt_jump_table_size = 0;
|
|
ret->tls_module_base = NULL;
|
|
|
|
ret->loc_hash_table = htab_try_create (1024,
|
|
elf64_x86_64_local_htab_hash,
|
|
elf64_x86_64_local_htab_eq,
|
|
NULL);
|
|
ret->loc_hash_memory = objalloc_create ();
|
|
if (!ret->loc_hash_table || !ret->loc_hash_memory)
|
|
{
|
|
free (ret);
|
|
return NULL;
|
|
}
|
|
|
return &ret->elf.root;
|
return &ret->elf.root;
|
}
|
}
|
|
|
/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
|
/* Destroy an X86-64 ELF linker hash table. */
|
shortcuts to them in our hash table. */
|
|
|
|
static bfd_boolean
|
static void
|
create_got_section (bfd *dynobj, struct bfd_link_info *info)
|
elf64_x86_64_link_hash_table_free (struct bfd_link_hash_table *hash)
|
{
|
{
|
struct elf64_x86_64_link_hash_table *htab;
|
struct elf64_x86_64_link_hash_table *htab
|
|
= (struct elf64_x86_64_link_hash_table *) hash;
|
if (! _bfd_elf_create_got_section (dynobj, info))
|
|
return FALSE;
|
|
|
|
htab = elf64_x86_64_hash_table (info);
|
if (htab->loc_hash_table)
|
htab->sgot = bfd_get_section_by_name (dynobj, ".got");
|
htab_delete (htab->loc_hash_table);
|
htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
|
if (htab->loc_hash_memory)
|
if (!htab->sgot || !htab->sgotplt)
|
objalloc_free ((struct objalloc *) htab->loc_hash_memory);
|
abort ();
|
_bfd_generic_link_hash_table_free (hash);
|
|
|
htab->srelgot = bfd_make_section_with_flags (dynobj, ".rela.got",
|
|
(SEC_ALLOC | SEC_LOAD
|
|
| SEC_HAS_CONTENTS
|
|
| SEC_IN_MEMORY
|
|
| SEC_LINKER_CREATED
|
|
| SEC_READONLY));
|
|
if (htab->srelgot == NULL
|
|
|| ! bfd_set_section_alignment (dynobj, htab->srelgot, 3))
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
}
|
|
|
/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
|
/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
|
.rela.bss sections in DYNOBJ, and set up shortcuts to them in our
|
.rela.bss sections in DYNOBJ, and set up shortcuts to them in our
|
hash table. */
|
hash table. */
|
| Line 615... |
Line 673... |
static bfd_boolean
|
static bfd_boolean
|
elf64_x86_64_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
|
elf64_x86_64_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
|
{
|
{
|
struct elf64_x86_64_link_hash_table *htab;
|
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))
|
if (!_bfd_elf_create_dynamic_sections (dynobj, info))
|
return FALSE;
|
return FALSE;
|
|
|
htab->splt = bfd_get_section_by_name (dynobj, ".plt");
|
htab = elf64_x86_64_hash_table (info);
|
htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
|
|
htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
|
htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
|
if (!info->shared)
|
if (!info->shared)
|
htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
|
htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
|
|
|
if (!htab->splt || !htab->srelplt || !htab->sdynbss
|
if (!htab->sdynbss
|
|| (!info->shared && !htab->srelbss))
|
|| (!info->shared && !htab->srelbss))
|
abort ();
|
abort ();
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
| Line 651... |
Line 704... |
|
|
if (eind->dyn_relocs != NULL)
|
if (eind->dyn_relocs != NULL)
|
{
|
{
|
if (edir->dyn_relocs != NULL)
|
if (edir->dyn_relocs != NULL)
|
{
|
{
|
struct elf64_x86_64_dyn_relocs **pp;
|
struct elf_dyn_relocs **pp;
|
struct elf64_x86_64_dyn_relocs *p;
|
struct elf_dyn_relocs *p;
|
|
|
/* Add reloc counts against the indirect sym to the direct sym
|
/* Add reloc counts against the indirect sym to the direct sym
|
list. Merge any entries against the same section. */
|
list. Merge any entries against the same section. */
|
for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
|
for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
|
{
|
{
|
struct elf64_x86_64_dyn_relocs *q;
|
struct elf_dyn_relocs *q;
|
|
|
for (q = edir->dyn_relocs; q != NULL; q = q->next)
|
for (q = edir->dyn_relocs; q != NULL; q = q->next)
|
if (q->sec == p->sec)
|
if (q->sec == p->sec)
|
{
|
{
|
q->pc_count += p->pc_count;
|
q->pc_count += p->pc_count;
|
| Line 804... |
Line 857... |
r_symndx = ELF64_R_SYM (rel[1].r_info);
|
r_symndx = ELF64_R_SYM (rel[1].r_info);
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
return FALSE;
|
return FALSE;
|
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
|
/* Use strncmp to check __tls_get_addr since __tls_get_addr
|
|
may be versioned. */
|
return (h != NULL
|
return (h != NULL
|
&& h->root.root.string != NULL
|
&& h->root.root.string != NULL
|
&& (ELF64_R_TYPE (rel[1].r_info) == R_X86_64_PC32
|
&& (ELF64_R_TYPE (rel[1].r_info) == R_X86_64_PC32
|
|| ELF64_R_TYPE (rel[1].r_info) == R_X86_64_PLT32)
|
|| ELF64_R_TYPE (rel[1].r_info) == R_X86_64_PLT32)
|
&& (strcmp (h->root.root.string, "__tls_get_addr") == 0));
|
&& (strncmp (h->root.root.string,
|
|
"__tls_get_addr", 14) == 0));
|
|
|
case R_X86_64_GOTTPOFF:
|
case R_X86_64_GOTTPOFF:
|
/* Check transition from IE access model:
|
/* Check transition from IE access model:
|
movq foo@gottpoff(%rip), %reg
|
movq foo@gottpoff(%rip), %reg
|
addq foo@gottpoff(%rip), %reg
|
addq foo@gottpoff(%rip), %reg
|
| Line 880... |
Line 936... |
Elf_Internal_Shdr *symtab_hdr,
|
Elf_Internal_Shdr *symtab_hdr,
|
struct elf_link_hash_entry **sym_hashes,
|
struct elf_link_hash_entry **sym_hashes,
|
unsigned int *r_type, int tls_type,
|
unsigned int *r_type, int tls_type,
|
const Elf_Internal_Rela *rel,
|
const Elf_Internal_Rela *rel,
|
const Elf_Internal_Rela *relend,
|
const Elf_Internal_Rela *relend,
|
struct elf_link_hash_entry *h)
|
struct elf_link_hash_entry *h,
|
|
unsigned long r_symndx)
|
{
|
{
|
unsigned int from_type = *r_type;
|
unsigned int from_type = *r_type;
|
unsigned int to_type = from_type;
|
unsigned int to_type = from_type;
|
bfd_boolean check = TRUE;
|
bfd_boolean check = TRUE;
|
|
|
| Line 892... |
Line 949... |
{
|
{
|
case R_X86_64_TLSGD:
|
case R_X86_64_TLSGD:
|
case R_X86_64_GOTPC32_TLSDESC:
|
case R_X86_64_GOTPC32_TLSDESC:
|
case R_X86_64_TLSDESC_CALL:
|
case R_X86_64_TLSDESC_CALL:
|
case R_X86_64_GOTTPOFF:
|
case R_X86_64_GOTTPOFF:
|
if (!info->shared)
|
if (info->executable)
|
{
|
{
|
if (h == NULL)
|
if (h == NULL)
|
to_type = R_X86_64_TPOFF32;
|
to_type = R_X86_64_TPOFF32;
|
else
|
else
|
to_type = R_X86_64_GOTTPOFF;
|
to_type = R_X86_64_GOTTPOFF;
|
| Line 907... |
Line 964... |
based on TLS_TYPE. */
|
based on TLS_TYPE. */
|
if (contents != NULL)
|
if (contents != NULL)
|
{
|
{
|
unsigned int new_to_type = to_type;
|
unsigned int new_to_type = to_type;
|
|
|
if (!info->shared
|
if (info->executable
|
&& h != NULL
|
&& h != NULL
|
&& h->dynindx == -1
|
&& h->dynindx == -1
|
&& tls_type == GOT_TLS_IE)
|
&& tls_type == GOT_TLS_IE)
|
new_to_type = R_X86_64_TPOFF32;
|
new_to_type = R_X86_64_TPOFF32;
|
|
|
| Line 931... |
Line 988... |
}
|
}
|
|
|
break;
|
break;
|
|
|
case R_X86_64_TLSLD:
|
case R_X86_64_TLSLD:
|
if (!info->shared)
|
if (info->executable)
|
to_type = R_X86_64_TPOFF32;
|
to_type = R_X86_64_TPOFF32;
|
break;
|
break;
|
|
|
default:
|
default:
|
return TRUE;
|
return TRUE;
|
| Line 950... |
Line 1007... |
&& ! elf64_x86_64_check_tls_transition (abfd, sec, contents,
|
&& ! elf64_x86_64_check_tls_transition (abfd, sec, contents,
|
symtab_hdr, sym_hashes,
|
symtab_hdr, sym_hashes,
|
from_type, rel, relend))
|
from_type, rel, relend))
|
{
|
{
|
reloc_howto_type *from, *to;
|
reloc_howto_type *from, *to;
|
|
const char *name;
|
|
|
from = elf64_x86_64_rtype_to_howto (abfd, from_type);
|
from = elf64_x86_64_rtype_to_howto (abfd, from_type);
|
to = elf64_x86_64_rtype_to_howto (abfd, to_type);
|
to = elf64_x86_64_rtype_to_howto (abfd, to_type);
|
|
|
|
if (h)
|
|
name = h->root.root.string;
|
|
else
|
|
{
|
|
Elf_Internal_Sym *isym;
|
|
struct elf64_x86_64_link_hash_table *htab;
|
|
htab = elf64_x86_64_hash_table (info);
|
|
isym = bfd_sym_from_r_symndx (&htab->sym_cache,
|
|
abfd, r_symndx);
|
|
name = bfd_elf_sym_name (abfd, symtab_hdr, isym, NULL);
|
|
}
|
|
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B: TLS transition from %s to %s against `%s' at 0x%lx "
|
(_("%B: TLS transition from %s to %s against `%s' at 0x%lx "
|
"in section `%A' failed"),
|
"in section `%A' failed"),
|
abfd, sec, from->name, to->name,
|
abfd, sec, from->name, to->name, name,
|
h ? h->root.root.string : "a local symbol",
|
|
(unsigned long) rel->r_offset);
|
(unsigned long) rel->r_offset);
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
| Line 1001... |
Line 1070... |
for (rel = relocs; rel < rel_end; rel++)
|
for (rel = relocs; rel < rel_end; rel++)
|
{
|
{
|
unsigned int r_type;
|
unsigned int r_type;
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
|
Elf_Internal_Sym *isym;
|
|
const char *name;
|
|
|
r_symndx = ELF64_R_SYM (rel->r_info);
|
r_symndx = ELF64_R_SYM (rel->r_info);
|
r_type = ELF64_R_TYPE (rel->r_info);
|
r_type = ELF64_R_TYPE (rel->r_info);
|
|
|
if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
|
if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
|
| Line 1013... |
Line 1084... |
abfd, r_symndx);
|
abfd, r_symndx);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
|
{
|
|
/* A local symbol. */
|
|
isym = bfd_sym_from_r_symndx (&htab->sym_cache,
|
|
abfd, r_symndx);
|
|
if (isym == NULL)
|
|
return FALSE;
|
|
|
|
/* Check relocation against local STT_GNU_IFUNC symbol. */
|
|
if (ELF64_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
|
|
{
|
|
h = elf64_x86_64_get_local_sym_hash (htab, abfd, rel,
|
|
TRUE);
|
|
if (h == NULL)
|
|
return FALSE;
|
|
|
|
/* Fake a STT_GNU_IFUNC symbol. */
|
|
h->type = STT_GNU_IFUNC;
|
|
h->def_regular = 1;
|
|
h->ref_regular = 1;
|
|
h->forced_local = 1;
|
|
h->root.type = bfd_link_hash_defined;
|
|
}
|
|
else
|
h = NULL;
|
h = NULL;
|
|
}
|
else
|
else
|
{
|
{
|
|
isym = NULL;
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
while (h->root.type == bfd_link_hash_indirect
|
while (h->root.type == bfd_link_hash_indirect
|
|| h->root.type == bfd_link_hash_warning)
|
|| h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
}
|
}
|
|
|
|
if (h != NULL)
|
|
{
|
|
/* Create the ifunc sections for static executables. If we
|
|
never see an indirect function symbol nor we are building
|
|
a static executable, those sections will be empty and
|
|
won't appear in output. */
|
|
switch (r_type)
|
|
{
|
|
default:
|
|
break;
|
|
|
|
case R_X86_64_32S:
|
|
case R_X86_64_32:
|
|
case R_X86_64_64:
|
|
case R_X86_64_PC32:
|
|
case R_X86_64_PC64:
|
|
case R_X86_64_PLT32:
|
|
case R_X86_64_GOTPCREL:
|
|
case R_X86_64_GOTPCREL64:
|
|
if (!_bfd_elf_create_ifunc_sections (abfd, info))
|
|
return FALSE;
|
|
break;
|
|
}
|
|
|
|
/* Since STT_GNU_IFUNC symbol must go through PLT, we handle
|
|
it here if it is defined in a non-shared object. */
|
|
if (h->type == STT_GNU_IFUNC
|
|
&& h->def_regular)
|
|
{
|
|
/* It is referenced by a non-shared object. */
|
|
h->ref_regular = 1;
|
|
h->needs_plt = 1;
|
|
|
|
/* STT_GNU_IFUNC symbol must go through PLT. */
|
|
h->plt.refcount += 1;
|
|
|
|
/* STT_GNU_IFUNC needs dynamic sections. */
|
|
if (htab->elf.dynobj == NULL)
|
|
htab->elf.dynobj = abfd;
|
|
|
|
switch (r_type)
|
|
{
|
|
default:
|
|
if (h->root.root.string)
|
|
name = h->root.root.string;
|
|
else
|
|
name = bfd_elf_sym_name (abfd, symtab_hdr, isym,
|
|
NULL);
|
|
(*_bfd_error_handler)
|
|
(_("%B: relocation %s against STT_GNU_IFUNC "
|
|
"symbol `%s' isn't handled by %s"), abfd,
|
|
x86_64_elf_howto_table[r_type].name,
|
|
name, __FUNCTION__);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
|
|
case R_X86_64_64:
|
|
h->non_got_ref = 1;
|
|
h->pointer_equality_needed = 1;
|
|
if (info->shared)
|
|
{
|
|
/* We must copy these reloc types into the output
|
|
file. Create a reloc section in dynobj and
|
|
make room for this reloc. */
|
|
sreloc = _bfd_elf_create_ifunc_dyn_reloc
|
|
(abfd, info, sec, sreloc,
|
|
&((struct elf64_x86_64_link_hash_entry *) h)->dyn_relocs);
|
|
if (sreloc == NULL)
|
|
return FALSE;
|
|
}
|
|
break;
|
|
|
|
case R_X86_64_32S:
|
|
case R_X86_64_32:
|
|
case R_X86_64_PC32:
|
|
case R_X86_64_PC64:
|
|
h->non_got_ref = 1;
|
|
if (r_type != R_X86_64_PC32
|
|
&& r_type != R_X86_64_PC64)
|
|
h->pointer_equality_needed = 1;
|
|
break;
|
|
|
|
case R_X86_64_PLT32:
|
|
break;
|
|
|
|
case R_X86_64_GOTPCREL:
|
|
case R_X86_64_GOTPCREL64:
|
|
h->got.refcount += 1;
|
|
if (htab->elf.sgot == NULL
|
|
&& !_bfd_elf_create_got_section (htab->elf.dynobj,
|
|
info))
|
|
return FALSE;
|
|
break;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
}
|
|
|
if (! elf64_x86_64_tls_transition (info, abfd, sec, NULL,
|
if (! elf64_x86_64_tls_transition (info, abfd, sec, NULL,
|
symtab_hdr, sym_hashes,
|
symtab_hdr, sym_hashes,
|
&r_type, GOT_UNKNOWN,
|
&r_type, GOT_UNKNOWN,
|
rel, rel_end, h))
|
rel, rel_end, h, r_symndx))
|
return FALSE;
|
return FALSE;
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_X86_64_TLSLD:
|
case R_X86_64_TLSLD:
|
htab->tls_ld_got.refcount += 1;
|
htab->tls_ld_got.refcount += 1;
|
goto create_got;
|
goto create_got;
|
|
|
case R_X86_64_TPOFF32:
|
case R_X86_64_TPOFF32:
|
if (info->shared)
|
if (!info->executable)
|
{
|
{
|
|
if (h)
|
|
name = h->root.root.string;
|
|
else
|
|
name = bfd_elf_sym_name (abfd, symtab_hdr, isym,
|
|
NULL);
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B: relocation %s against `%s' can not be used when making a shared object; recompile with -fPIC"),
|
(_("%B: relocation %s against `%s' can not be used when making a shared object; recompile with -fPIC"),
|
abfd,
|
abfd,
|
x86_64_elf_howto_table[r_type].name,
|
x86_64_elf_howto_table[r_type].name, name);
|
(h) ? h->root.root.string : "a local symbol");
|
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
break;
|
break;
|
|
|
case R_X86_64_GOTTPOFF:
|
case R_X86_64_GOTTPOFF:
|
if (info->shared)
|
if (!info->executable)
|
info->flags |= DF_STATIC_TLS;
|
info->flags |= DF_STATIC_TLS;
|
/* Fall through */
|
/* Fall through */
|
|
|
case R_X86_64_GOT32:
|
case R_X86_64_GOT32:
|
case R_X86_64_GOTPCREL:
|
case R_X86_64_GOTPCREL:
|
| Line 1128... |
Line 1327... |
else if (GOT_TLS_GD_ANY_P (old_tls_type)
|
else if (GOT_TLS_GD_ANY_P (old_tls_type)
|
&& GOT_TLS_GD_ANY_P (tls_type))
|
&& GOT_TLS_GD_ANY_P (tls_type))
|
tls_type |= old_tls_type;
|
tls_type |= old_tls_type;
|
else
|
else
|
{
|
{
|
|
if (h)
|
|
name = h->root.root.string;
|
|
else
|
|
name = bfd_elf_sym_name (abfd, symtab_hdr,
|
|
isym, NULL);
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B: '%s' accessed both as normal and thread local symbol"),
|
(_("%B: '%s' accessed both as normal and thread local symbol"),
|
abfd, h ? h->root.root.string : "<local>");
|
abfd, name);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
|
|
if (old_tls_type != tls_type)
|
if (old_tls_type != tls_type)
|
| Line 1149... |
Line 1353... |
|
|
case R_X86_64_GOTOFF64:
|
case R_X86_64_GOTOFF64:
|
case R_X86_64_GOTPC32:
|
case R_X86_64_GOTPC32:
|
case R_X86_64_GOTPC64:
|
case R_X86_64_GOTPC64:
|
create_got:
|
create_got:
|
if (htab->sgot == NULL)
|
if (htab->elf.sgot == NULL)
|
{
|
{
|
if (htab->elf.dynobj == NULL)
|
if (htab->elf.dynobj == NULL)
|
htab->elf.dynobj = abfd;
|
htab->elf.dynobj = abfd;
|
if (!create_got_section (htab->elf.dynobj, info))
|
if (!_bfd_elf_create_got_section (htab->elf.dynobj,
|
|
info))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
break;
|
break;
|
|
|
case R_X86_64_PLT32:
|
case R_X86_64_PLT32:
|
| Line 1197... |
Line 1402... |
non-constant sections. */
|
non-constant sections. */
|
if (info->shared
|
if (info->shared
|
&& (sec->flags & SEC_ALLOC) != 0
|
&& (sec->flags & SEC_ALLOC) != 0
|
&& (sec->flags & SEC_READONLY) != 0)
|
&& (sec->flags & SEC_READONLY) != 0)
|
{
|
{
|
|
if (h)
|
|
name = h->root.root.string;
|
|
else
|
|
name = bfd_elf_sym_name (abfd, symtab_hdr, isym, NULL);
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B: relocation %s against `%s' can not be used when making a shared object; recompile with -fPIC"),
|
(_("%B: relocation %s against `%s' can not be used when making a shared object; recompile with -fPIC"),
|
abfd,
|
abfd, x86_64_elf_howto_table[r_type].name, name);
|
x86_64_elf_howto_table[r_type].name,
|
|
(h) ? h->root.root.string : "a local symbol");
|
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
/* Fall through. */
|
/* Fall through. */
|
|
|
case R_X86_64_PC8:
|
case R_X86_64_PC8:
|
case R_X86_64_PC16:
|
case R_X86_64_PC16:
|
case R_X86_64_PC32:
|
case R_X86_64_PC32:
|
case R_X86_64_PC64:
|
case R_X86_64_PC64:
|
case R_X86_64_64:
|
case R_X86_64_64:
|
if (h != NULL && !info->shared)
|
if (h != NULL && info->executable)
|
{
|
{
|
/* If this reloc is in a read-only section, we might
|
/* If this reloc is in a read-only section, we might
|
need a copy reloc. We can't check reliably at this
|
need a copy reloc. We can't check reliably at this
|
stage whether the section is read-only, as input
|
stage whether the section is read-only, as input
|
sections have not yet been mapped to output sections.
|
sections have not yet been mapped to output sections.
|
| Line 1252... |
Line 1459... |
may need to keep relocations for symbols satisfied by a
|
may need to keep relocations for symbols satisfied by a
|
dynamic library if we manage to avoid copy relocs for the
|
dynamic library if we manage to avoid copy relocs for the
|
symbol. */
|
symbol. */
|
if ((info->shared
|
if ((info->shared
|
&& (sec->flags & SEC_ALLOC) != 0
|
&& (sec->flags & SEC_ALLOC) != 0
|
&& (((r_type != R_X86_64_PC8)
|
&& (! IS_X86_64_PCREL_TYPE (r_type)
|
&& (r_type != R_X86_64_PC16)
|
|
&& (r_type != R_X86_64_PC32)
|
|
&& (r_type != R_X86_64_PC64))
|
|
|| (h != NULL
|
|| (h != NULL
|
&& (! SYMBOLIC_BIND (info, h)
|
&& (! SYMBOLIC_BIND (info, h)
|
|| h->root.type == bfd_link_hash_defweak
|
|| h->root.type == bfd_link_hash_defweak
|
|| !h->def_regular))))
|
|| !h->def_regular))))
|
|| (ELIMINATE_COPY_RELOCS
|
|| (ELIMINATE_COPY_RELOCS
|
| Line 1267... |
Line 1471... |
&& (sec->flags & SEC_ALLOC) != 0
|
&& (sec->flags & SEC_ALLOC) != 0
|
&& h != NULL
|
&& h != NULL
|
&& (h->root.type == bfd_link_hash_defweak
|
&& (h->root.type == bfd_link_hash_defweak
|
|| !h->def_regular)))
|
|| !h->def_regular)))
|
{
|
{
|
struct elf64_x86_64_dyn_relocs *p;
|
struct elf_dyn_relocs *p;
|
struct elf64_x86_64_dyn_relocs **head;
|
struct elf_dyn_relocs **head;
|
|
|
/* We must copy these reloc types into the output file.
|
/* We must copy these reloc types into the output file.
|
Create a reloc section in dynobj and make room for
|
Create a reloc section in dynobj and make room for
|
this reloc. */
|
this reloc. */
|
if (sreloc == NULL)
|
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 (! CONST_STRNEQ (name, ".rela")
|
|
|| strcmp (bfd_get_section_name (abfd, sec),
|
|
name + 5) != 0)
|
|
{
|
|
(*_bfd_error_handler)
|
|
(_("%B: bad relocation section name `%s\'"),
|
|
abfd, name);
|
|
}
|
|
|
|
if (htab->elf.dynobj == NULL)
|
if (htab->elf.dynobj == NULL)
|
htab->elf.dynobj = abfd;
|
htab->elf.dynobj = abfd;
|
|
|
dynobj = htab->elf.dynobj;
|
sreloc = _bfd_elf_make_dynamic_reloc_section
|
|
(sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE);
|
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
|
if (sreloc == NULL)
|
if (sreloc == NULL)
|
{
|
|
flagword flags;
|
|
|
|
flags = (SEC_HAS_CONTENTS | SEC_READONLY
|
|
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
|
|
if ((sec->flags & SEC_ALLOC) != 0)
|
|
flags |= SEC_ALLOC | SEC_LOAD;
|
|
sreloc = bfd_make_section_with_flags (dynobj,
|
|
name,
|
|
flags);
|
|
if (sreloc == NULL
|
|
|| ! bfd_set_section_alignment (dynobj, sreloc, 3))
|
|
return FALSE;
|
return FALSE;
|
}
|
}
|
elf_section_data (sec)->sreloc = sreloc;
|
|
}
|
|
|
|
/* If this is a global symbol, we count the number of
|
/* If this is a global symbol, we count the number of
|
relocations we need for this symbol. */
|
relocations we need for this symbol. */
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
head = &((struct elf64_x86_64_link_hash_entry *) h)->dyn_relocs;
|
head = &((struct elf64_x86_64_link_hash_entry *) h)->dyn_relocs;
|
}
|
}
|
else
|
else
|
{
|
{
|
void **vpp;
|
|
/* Track dynamic relocs needed for local syms too.
|
/* Track dynamic relocs needed for local syms too.
|
We really need local syms available to do this
|
We really need local syms available to do this
|
easily. Oh well. */
|
easily. Oh well. */
|
|
|
asection *s;
|
asection *s;
|
s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
|
void **vpp;
|
sec, r_symndx);
|
Elf_Internal_Sym *isym;
|
if (s == NULL)
|
|
|
isym = bfd_sym_from_r_symndx (&htab->sym_cache,
|
|
abfd, r_symndx);
|
|
if (isym == NULL)
|
return FALSE;
|
return FALSE;
|
|
|
|
s = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
|
if (s == NULL)
|
|
s = sec;
|
|
|
/* Beware of type punned pointers vs strict aliasing
|
/* Beware of type punned pointers vs strict aliasing
|
rules. */
|
rules. */
|
vpp = &(elf_section_data (s)->local_dynrel);
|
vpp = &(elf_section_data (s)->local_dynrel);
|
head = (struct elf64_x86_64_dyn_relocs **)vpp;
|
head = (struct elf_dyn_relocs **)vpp;
|
}
|
}
|
|
|
p = *head;
|
p = *head;
|
if (p == NULL || p->sec != sec)
|
if (p == NULL || p->sec != sec)
|
{
|
{
|
bfd_size_type amt = sizeof *p;
|
bfd_size_type amt = sizeof *p;
|
p = ((struct elf64_x86_64_dyn_relocs *)
|
|
|
p = ((struct elf_dyn_relocs *)
|
bfd_alloc (htab->elf.dynobj, amt));
|
bfd_alloc (htab->elf.dynobj, amt));
|
if (p == NULL)
|
if (p == NULL)
|
return FALSE;
|
return FALSE;
|
p->next = *head;
|
p->next = *head;
|
*head = p;
|
*head = p;
|
| Line 1359... |
Line 1536... |
p->count = 0;
|
p->count = 0;
|
p->pc_count = 0;
|
p->pc_count = 0;
|
}
|
}
|
|
|
p->count += 1;
|
p->count += 1;
|
if (r_type == R_X86_64_PC8
|
if (IS_X86_64_PCREL_TYPE (r_type))
|
|| r_type == R_X86_64_PC16
|
|
|| r_type == R_X86_64_PC32
|
|
|| r_type == R_X86_64_PC64)
|
|
p->pc_count += 1;
|
p->pc_count += 1;
|
}
|
}
|
break;
|
break;
|
|
|
/* This relocation describes the C++ object vtable hierarchy.
|
/* This relocation describes the C++ object vtable hierarchy.
|
| Line 1444... |
Line 1618... |
|
|
r_symndx = ELF64_R_SYM (rel->r_info);
|
r_symndx = ELF64_R_SYM (rel->r_info);
|
if (r_symndx >= symtab_hdr->sh_info)
|
if (r_symndx >= symtab_hdr->sh_info)
|
{
|
{
|
struct elf64_x86_64_link_hash_entry *eh;
|
struct elf64_x86_64_link_hash_entry *eh;
|
struct elf64_x86_64_dyn_relocs **pp;
|
struct elf_dyn_relocs **pp;
|
struct elf64_x86_64_dyn_relocs *p;
|
struct elf_dyn_relocs *p;
|
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
while (h->root.type == bfd_link_hash_indirect
|
while (h->root.type == bfd_link_hash_indirect
|
|| h->root.type == bfd_link_hash_warning)
|
|| h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
| Line 1466... |
Line 1640... |
|
|
r_type = ELF64_R_TYPE (rel->r_info);
|
r_type = ELF64_R_TYPE (rel->r_info);
|
if (! elf64_x86_64_tls_transition (info, abfd, sec, NULL,
|
if (! elf64_x86_64_tls_transition (info, abfd, sec, NULL,
|
symtab_hdr, sym_hashes,
|
symtab_hdr, sym_hashes,
|
&r_type, GOT_UNKNOWN,
|
&r_type, GOT_UNKNOWN,
|
rel, relend, h))
|
rel, relend, h, r_symndx))
|
return FALSE;
|
return FALSE;
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_X86_64_TLSLD:
|
case R_X86_64_TLSLD:
|
| Line 1542... |
Line 1716... |
struct elf_link_hash_entry *h)
|
struct elf_link_hash_entry *h)
|
{
|
{
|
struct elf64_x86_64_link_hash_table *htab;
|
struct elf64_x86_64_link_hash_table *htab;
|
asection *s;
|
asection *s;
|
|
|
|
/* STT_GNU_IFUNC symbol must go through PLT. */
|
|
if (h->type == STT_GNU_IFUNC)
|
|
{
|
|
if (h->plt.refcount <= 0)
|
|
{
|
|
h->plt.offset = (bfd_vma) -1;
|
|
h->needs_plt = 0;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
/* If this is a function, put it in the procedure linkage table. We
|
/* If this is a function, put it in the procedure linkage table. We
|
will fill in the contents of the procedure linkage table later,
|
will fill in the contents of the procedure linkage table later,
|
when we know the address of the .got section. */
|
when we know the address of the .got section. */
|
if (h->type == STT_FUNC
|
if (h->type == STT_FUNC
|
|| h->needs_plt)
|
|| h->needs_plt)
|
| Line 1611... |
Line 1796... |
}
|
}
|
|
|
if (ELIMINATE_COPY_RELOCS)
|
if (ELIMINATE_COPY_RELOCS)
|
{
|
{
|
struct elf64_x86_64_link_hash_entry * eh;
|
struct elf64_x86_64_link_hash_entry * eh;
|
struct elf64_x86_64_dyn_relocs *p;
|
struct elf_dyn_relocs *p;
|
|
|
eh = (struct elf64_x86_64_link_hash_entry *) h;
|
eh = (struct elf64_x86_64_link_hash_entry *) h;
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
{
|
{
|
s = p->sec->output_section;
|
s = p->sec->output_section;
|
| Line 1667... |
Line 1852... |
|
|
/* Allocate space in .plt, .got and associated reloc sections for
|
/* Allocate space in .plt, .got and associated reloc sections for
|
dynamic relocs. */
|
dynamic relocs. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
|
elf64_x86_64_allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
|
{
|
{
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
struct elf64_x86_64_link_hash_table *htab;
|
struct elf64_x86_64_link_hash_table *htab;
|
struct elf64_x86_64_link_hash_entry *eh;
|
struct elf64_x86_64_link_hash_entry *eh;
|
struct elf64_x86_64_dyn_relocs *p;
|
struct elf_dyn_relocs *p;
|
|
|
if (h->root.type == bfd_link_hash_indirect)
|
if (h->root.type == bfd_link_hash_indirect)
|
return TRUE;
|
return TRUE;
|
|
|
if (h->root.type == bfd_link_hash_warning)
|
if (h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
|
eh = (struct elf64_x86_64_link_hash_entry *) h;
|
|
|
info = (struct bfd_link_info *) inf;
|
info = (struct bfd_link_info *) inf;
|
htab = elf64_x86_64_hash_table (info);
|
htab = elf64_x86_64_hash_table (info);
|
|
|
if (htab->elf.dynamic_sections_created
|
/* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
|
|
here if it is defined and referenced in a non-shared object. */
|
|
if (h->type == STT_GNU_IFUNC
|
|
&& h->def_regular)
|
|
return _bfd_elf_allocate_ifunc_dyn_relocs (info, h,
|
|
&eh->dyn_relocs,
|
|
PLT_ENTRY_SIZE,
|
|
GOT_ENTRY_SIZE);
|
|
else if (htab->elf.dynamic_sections_created
|
&& h->plt.refcount > 0)
|
&& h->plt.refcount > 0)
|
{
|
{
|
/* Make sure this symbol is output as a dynamic symbol.
|
/* Make sure this symbol is output as a dynamic symbol.
|
Undefined weak syms won't yet be marked as dynamic. */
|
Undefined weak syms won't yet be marked as dynamic. */
|
if (h->dynindx == -1
|
if (h->dynindx == -1
|
| Line 1698... |
Line 1892... |
}
|
}
|
|
|
if (info->shared
|
if (info->shared
|
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
|
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
|
{
|
{
|
asection *s = htab->splt;
|
asection *s = htab->elf.splt;
|
|
|
/* If this is the first .plt entry, make room for the special
|
/* If this is the first .plt entry, make room for the special
|
first entry. */
|
first entry. */
|
if (s->size == 0)
|
if (s->size == 0)
|
s->size += PLT_ENTRY_SIZE;
|
s->size += PLT_ENTRY_SIZE;
|
| Line 1724... |
Line 1918... |
/* Make room for this entry. */
|
/* Make room for this entry. */
|
s->size += PLT_ENTRY_SIZE;
|
s->size += PLT_ENTRY_SIZE;
|
|
|
/* We also need to make an entry in the .got.plt section, which
|
/* We also need to make an entry in the .got.plt section, which
|
will be placed in the .got section by the linker script. */
|
will be placed in the .got section by the linker script. */
|
htab->sgotplt->size += GOT_ENTRY_SIZE;
|
htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
|
|
|
/* We also need to make an entry in the .rela.plt section. */
|
/* We also need to make an entry in the .rela.plt section. */
|
htab->srelplt->size += sizeof (Elf64_External_Rela);
|
htab->elf.srelplt->size += sizeof (Elf64_External_Rela);
|
htab->srelplt->reloc_count++;
|
htab->elf.srelplt->reloc_count++;
|
}
|
}
|
else
|
else
|
{
|
{
|
h->plt.offset = (bfd_vma) -1;
|
h->plt.offset = (bfd_vma) -1;
|
h->needs_plt = 0;
|
h->needs_plt = 0;
|
| Line 1742... |
Line 1936... |
{
|
{
|
h->plt.offset = (bfd_vma) -1;
|
h->plt.offset = (bfd_vma) -1;
|
h->needs_plt = 0;
|
h->needs_plt = 0;
|
}
|
}
|
|
|
eh = (struct elf64_x86_64_link_hash_entry *) h;
|
|
eh->tlsdesc_got = (bfd_vma) -1;
|
eh->tlsdesc_got = (bfd_vma) -1;
|
|
|
/* If R_X86_64_GOTTPOFF symbol is now local to the binary,
|
/* If R_X86_64_GOTTPOFF symbol is now local to the binary,
|
make it a R_X86_64_TPOFF32 requiring no GOT entry. */
|
make it a R_X86_64_TPOFF32 requiring no GOT entry. */
|
if (h->got.refcount > 0
|
if (h->got.refcount > 0
|
&& !info->shared
|
&& info->executable
|
&& h->dynindx == -1
|
&& h->dynindx == -1
|
&& elf64_x86_64_hash_entry (h)->tls_type == GOT_TLS_IE)
|
&& elf64_x86_64_hash_entry (h)->tls_type == GOT_TLS_IE)
|
|
{
|
h->got.offset = (bfd_vma) -1;
|
h->got.offset = (bfd_vma) -1;
|
|
}
|
else if (h->got.refcount > 0)
|
else if (h->got.refcount > 0)
|
{
|
{
|
asection *s;
|
asection *s;
|
bfd_boolean dyn;
|
bfd_boolean dyn;
|
int tls_type = elf64_x86_64_hash_entry (h)->tls_type;
|
int tls_type = elf64_x86_64_hash_entry (h)->tls_type;
|
| Line 1769... |
Line 1964... |
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (GOT_TLS_GDESC_P (tls_type))
|
if (GOT_TLS_GDESC_P (tls_type))
|
{
|
{
|
eh->tlsdesc_got = htab->sgotplt->size
|
eh->tlsdesc_got = htab->elf.sgotplt->size
|
- elf64_x86_64_compute_jump_table_size (htab);
|
- elf64_x86_64_compute_jump_table_size (htab);
|
htab->sgotplt->size += 2 * GOT_ENTRY_SIZE;
|
htab->elf.sgotplt->size += 2 * GOT_ENTRY_SIZE;
|
h->got.offset = (bfd_vma) -2;
|
h->got.offset = (bfd_vma) -2;
|
}
|
}
|
if (! GOT_TLS_GDESC_P (tls_type)
|
if (! GOT_TLS_GDESC_P (tls_type)
|
|| GOT_TLS_GD_P (tls_type))
|
|| GOT_TLS_GD_P (tls_type))
|
{
|
{
|
s = htab->sgot;
|
s = htab->elf.sgot;
|
h->got.offset = s->size;
|
h->got.offset = s->size;
|
s->size += GOT_ENTRY_SIZE;
|
s->size += GOT_ENTRY_SIZE;
|
if (GOT_TLS_GD_P (tls_type))
|
if (GOT_TLS_GD_P (tls_type))
|
s->size += GOT_ENTRY_SIZE;
|
s->size += GOT_ENTRY_SIZE;
|
}
|
}
|
| Line 1789... |
Line 1984... |
/* R_X86_64_TLSGD needs one dynamic relocation if local symbol
|
/* R_X86_64_TLSGD needs one dynamic relocation if local symbol
|
and two if global.
|
and two if global.
|
R_X86_64_GOTTPOFF needs one dynamic relocation. */
|
R_X86_64_GOTTPOFF needs one dynamic relocation. */
|
if ((GOT_TLS_GD_P (tls_type) && h->dynindx == -1)
|
if ((GOT_TLS_GD_P (tls_type) && h->dynindx == -1)
|
|| tls_type == GOT_TLS_IE)
|
|| tls_type == GOT_TLS_IE)
|
htab->srelgot->size += sizeof (Elf64_External_Rela);
|
htab->elf.srelgot->size += sizeof (Elf64_External_Rela);
|
else if (GOT_TLS_GD_P (tls_type))
|
else if (GOT_TLS_GD_P (tls_type))
|
htab->srelgot->size += 2 * sizeof (Elf64_External_Rela);
|
htab->elf.srelgot->size += 2 * sizeof (Elf64_External_Rela);
|
else if (! GOT_TLS_GDESC_P (tls_type)
|
else if (! GOT_TLS_GDESC_P (tls_type)
|
&& (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
&& (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
|| h->root.type != bfd_link_hash_undefweak)
|
|| h->root.type != bfd_link_hash_undefweak)
|
&& (info->shared
|
&& (info->shared
|
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
|
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
|
htab->srelgot->size += sizeof (Elf64_External_Rela);
|
htab->elf.srelgot->size += sizeof (Elf64_External_Rela);
|
if (GOT_TLS_GDESC_P (tls_type))
|
if (GOT_TLS_GDESC_P (tls_type))
|
{
|
{
|
htab->srelplt->size += sizeof (Elf64_External_Rela);
|
htab->elf.srelplt->size += sizeof (Elf64_External_Rela);
|
htab->tlsdesc_plt = (bfd_vma) -1;
|
htab->tlsdesc_plt = (bfd_vma) -1;
|
}
|
}
|
}
|
}
|
else
|
else
|
h->got.offset = (bfd_vma) -1;
|
h->got.offset = (bfd_vma) -1;
|
| Line 1826... |
Line 2021... |
function rather than going via the plt. If people want
|
function rather than going via the plt. If people want
|
function pointer comparisons to work as expected then they
|
function pointer comparisons to work as expected then they
|
should avoid writing weird assembly. */
|
should avoid writing weird assembly. */
|
if (SYMBOL_CALLS_LOCAL (info, h))
|
if (SYMBOL_CALLS_LOCAL (info, h))
|
{
|
{
|
struct elf64_x86_64_dyn_relocs **pp;
|
struct elf_dyn_relocs **pp;
|
|
|
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
|
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
|
{
|
{
|
p->count -= p->pc_count;
|
p->count -= p->pc_count;
|
p->pc_count = 0;
|
p->pc_count = 0;
|
| Line 1850... |
Line 2045... |
eh->dyn_relocs = NULL;
|
eh->dyn_relocs = NULL;
|
|
|
/* Make sure undefined weak symbols are output as a dynamic
|
/* Make sure undefined weak symbols are output as a dynamic
|
symbol in PIEs. */
|
symbol in PIEs. */
|
else if (h->dynindx == -1
|
else if (h->dynindx == -1
|
&& !h->forced_local)
|
&& ! h->forced_local
|
{
|
&& ! bfd_elf_link_record_dynamic_symbol (info, h))
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
|
}
|
}
|
else if (ELIMINATE_COPY_RELOCS)
|
else if (ELIMINATE_COPY_RELOCS)
|
{
|
{
|
/* For the non-shared case, discard space for relocs against
|
/* For the non-shared case, discard space for relocs against
|
symbols which turn out to need copy relocs or are not
|
symbols which turn out to need copy relocs or are not
|
| Line 1873... |
Line 2067... |
|| h->root.type == bfd_link_hash_undefined))))
|
|| h->root.type == bfd_link_hash_undefined))))
|
{
|
{
|
/* Make sure this symbol is output as a dynamic symbol.
|
/* Make sure this symbol is output as a dynamic symbol.
|
Undefined weak syms won't yet be marked as dynamic. */
|
Undefined weak syms won't yet be marked as dynamic. */
|
if (h->dynindx == -1
|
if (h->dynindx == -1
|
&& !h->forced_local)
|
&& ! h->forced_local
|
{
|
&& ! bfd_elf_link_record_dynamic_symbol (info, h))
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
|
return FALSE;
|
return FALSE;
|
}
|
|
|
|
/* If that succeeded, we know we'll be keeping all the
|
/* If that succeeded, we know we'll be keeping all the
|
relocs. */
|
relocs. */
|
if (h->dynindx != -1)
|
if (h->dynindx != -1)
|
goto keep;
|
goto keep;
|
| Line 1893... |
Line 2085... |
}
|
}
|
|
|
/* Finally, allocate space. */
|
/* Finally, allocate space. */
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
{
|
{
|
asection *sreloc = elf_section_data (p->sec)->sreloc;
|
asection * sreloc;
|
|
|
|
sreloc = elf_section_data (p->sec)->sreloc;
|
|
|
|
BFD_ASSERT (sreloc != NULL);
|
|
|
sreloc->size += p->count * sizeof (Elf64_External_Rela);
|
sreloc->size += p->count * sizeof (Elf64_External_Rela);
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
|
/* Allocate space in .plt, .got and associated reloc sections for
|
|
local dynamic relocs. */
|
|
|
|
static bfd_boolean
|
|
elf64_x86_64_allocate_local_dynrelocs (void **slot, void *inf)
|
|
{
|
|
struct elf_link_hash_entry *h
|
|
= (struct elf_link_hash_entry *) *slot;
|
|
|
|
if (h->type != STT_GNU_IFUNC
|
|
|| !h->def_regular
|
|
|| !h->ref_regular
|
|
|| !h->forced_local
|
|
|| h->root.type != bfd_link_hash_defined)
|
|
abort ();
|
|
|
|
return elf64_x86_64_allocate_dynrelocs (h, inf);
|
|
}
|
|
|
/* Find any dynamic relocs that apply to read-only sections. */
|
/* Find any dynamic relocs that apply to read-only sections. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
|
elf64_x86_64_readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
|
{
|
{
|
struct elf64_x86_64_link_hash_entry *eh;
|
struct elf64_x86_64_link_hash_entry *eh;
|
struct elf64_x86_64_dyn_relocs *p;
|
struct elf_dyn_relocs *p;
|
|
|
if (h->root.type == bfd_link_hash_warning)
|
if (h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
|
|
eh = (struct elf64_x86_64_link_hash_entry *) h;
|
eh = (struct elf64_x86_64_link_hash_entry *) h;
|
| Line 1976... |
Line 2192... |
if (! is_x86_64_elf (ibfd))
|
if (! is_x86_64_elf (ibfd))
|
continue;
|
continue;
|
|
|
for (s = ibfd->sections; s != NULL; s = s->next)
|
for (s = ibfd->sections; s != NULL; s = s->next)
|
{
|
{
|
struct elf64_x86_64_dyn_relocs *p;
|
struct elf_dyn_relocs *p;
|
|
|
for (p = (struct elf64_x86_64_dyn_relocs *)
|
for (p = (struct elf_dyn_relocs *)
|
(elf_section_data (s)->local_dynrel);
|
(elf_section_data (s)->local_dynrel);
|
p != NULL;
|
p != NULL;
|
p = p->next)
|
p = p->next)
|
{
|
{
|
if (!bfd_is_abs_section (p->sec)
|
if (!bfd_is_abs_section (p->sec)
|
| Line 1997... |
Line 2213... |
{
|
{
|
srel = elf_section_data (p->sec)->sreloc;
|
srel = elf_section_data (p->sec)->sreloc;
|
srel->size += p->count * sizeof (Elf64_External_Rela);
|
srel->size += p->count * sizeof (Elf64_External_Rela);
|
if ((p->sec->output_section->flags & SEC_READONLY) != 0)
|
if ((p->sec->output_section->flags & SEC_READONLY) != 0)
|
info->flags |= DF_TEXTREL;
|
info->flags |= DF_TEXTREL;
|
|
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
local_got = elf_local_got_refcounts (ibfd);
|
local_got = elf_local_got_refcounts (ibfd);
|
| Line 2011... |
Line 2226... |
symtab_hdr = &elf_symtab_hdr (ibfd);
|
symtab_hdr = &elf_symtab_hdr (ibfd);
|
locsymcount = symtab_hdr->sh_info;
|
locsymcount = symtab_hdr->sh_info;
|
end_local_got = local_got + locsymcount;
|
end_local_got = local_got + locsymcount;
|
local_tls_type = elf64_x86_64_local_got_tls_type (ibfd);
|
local_tls_type = elf64_x86_64_local_got_tls_type (ibfd);
|
local_tlsdesc_gotent = elf64_x86_64_local_tlsdesc_gotent (ibfd);
|
local_tlsdesc_gotent = elf64_x86_64_local_tlsdesc_gotent (ibfd);
|
s = htab->sgot;
|
s = htab->elf.sgot;
|
srel = htab->srelgot;
|
srel = htab->elf.srelgot;
|
for (; local_got < end_local_got;
|
for (; local_got < end_local_got;
|
++local_got, ++local_tls_type, ++local_tlsdesc_gotent)
|
++local_got, ++local_tls_type, ++local_tlsdesc_gotent)
|
{
|
{
|
*local_tlsdesc_gotent = (bfd_vma) -1;
|
*local_tlsdesc_gotent = (bfd_vma) -1;
|
if (*local_got > 0)
|
if (*local_got > 0)
|
{
|
{
|
if (GOT_TLS_GDESC_P (*local_tls_type))
|
if (GOT_TLS_GDESC_P (*local_tls_type))
|
{
|
{
|
*local_tlsdesc_gotent = htab->sgotplt->size
|
*local_tlsdesc_gotent = htab->elf.sgotplt->size
|
- elf64_x86_64_compute_jump_table_size (htab);
|
- elf64_x86_64_compute_jump_table_size (htab);
|
htab->sgotplt->size += 2 * GOT_ENTRY_SIZE;
|
htab->elf.sgotplt->size += 2 * GOT_ENTRY_SIZE;
|
*local_got = (bfd_vma) -2;
|
*local_got = (bfd_vma) -2;
|
}
|
}
|
if (! GOT_TLS_GDESC_P (*local_tls_type)
|
if (! GOT_TLS_GDESC_P (*local_tls_type)
|
|| GOT_TLS_GD_P (*local_tls_type))
|
|| GOT_TLS_GD_P (*local_tls_type))
|
{
|
{
|
| Line 2040... |
Line 2255... |
|| GOT_TLS_GD_ANY_P (*local_tls_type)
|
|| GOT_TLS_GD_ANY_P (*local_tls_type)
|
|| *local_tls_type == GOT_TLS_IE)
|
|| *local_tls_type == GOT_TLS_IE)
|
{
|
{
|
if (GOT_TLS_GDESC_P (*local_tls_type))
|
if (GOT_TLS_GDESC_P (*local_tls_type))
|
{
|
{
|
htab->srelplt->size += sizeof (Elf64_External_Rela);
|
htab->elf.srelplt->size
|
|
+= sizeof (Elf64_External_Rela);
|
htab->tlsdesc_plt = (bfd_vma) -1;
|
htab->tlsdesc_plt = (bfd_vma) -1;
|
}
|
}
|
if (! GOT_TLS_GDESC_P (*local_tls_type)
|
if (! GOT_TLS_GDESC_P (*local_tls_type)
|
|| GOT_TLS_GD_P (*local_tls_type))
|
|| GOT_TLS_GD_P (*local_tls_type))
|
srel->size += sizeof (Elf64_External_Rela);
|
srel->size += sizeof (Elf64_External_Rela);
|
| Line 2057... |
Line 2273... |
|
|
if (htab->tls_ld_got.refcount > 0)
|
if (htab->tls_ld_got.refcount > 0)
|
{
|
{
|
/* Allocate 2 got entries and 1 dynamic reloc for R_X86_64_TLSLD
|
/* Allocate 2 got entries and 1 dynamic reloc for R_X86_64_TLSLD
|
relocs. */
|
relocs. */
|
htab->tls_ld_got.offset = htab->sgot->size;
|
htab->tls_ld_got.offset = htab->elf.sgot->size;
|
htab->sgot->size += 2 * GOT_ENTRY_SIZE;
|
htab->elf.sgot->size += 2 * GOT_ENTRY_SIZE;
|
htab->srelgot->size += sizeof (Elf64_External_Rela);
|
htab->elf.srelgot->size += sizeof (Elf64_External_Rela);
|
}
|
}
|
else
|
else
|
htab->tls_ld_got.offset = -1;
|
htab->tls_ld_got.offset = -1;
|
|
|
/* Allocate global sym .plt and .got entries, and space for global
|
/* Allocate global sym .plt and .got entries, and space for global
|
sym dynamic relocs. */
|
sym dynamic relocs. */
|
elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
|
elf_link_hash_traverse (&htab->elf, elf64_x86_64_allocate_dynrelocs,
|
|
info);
|
|
|
|
/* Allocate .plt and .got entries, and space for local symbols. */
|
|
htab_traverse (htab->loc_hash_table,
|
|
elf64_x86_64_allocate_local_dynrelocs,
|
|
info);
|
|
|
/* For every jump slot reserved in the sgotplt, reloc_count is
|
/* For every jump slot reserved in the sgotplt, reloc_count is
|
incremented. However, when we reserve space for TLS descriptors,
|
incremented. However, when we reserve space for TLS descriptors,
|
it's not incremented, so in order to compute the space reserved
|
it's not incremented, so in order to compute the space reserved
|
for them, it suffices to multiply the reloc count by the jump
|
for them, it suffices to multiply the reloc count by the jump
|
slot size. */
|
slot size. */
|
if (htab->srelplt)
|
if (htab->elf.srelplt)
|
htab->sgotplt_jump_table_size
|
htab->sgotplt_jump_table_size
|
= elf64_x86_64_compute_jump_table_size (htab);
|
= elf64_x86_64_compute_jump_table_size (htab);
|
|
|
if (htab->tlsdesc_plt)
|
if (htab->tlsdesc_plt)
|
{
|
{
|
| Line 2085... |
Line 2307... |
PLT and GOT entries they require. */
|
PLT and GOT entries they require. */
|
if ((info->flags & DF_BIND_NOW))
|
if ((info->flags & DF_BIND_NOW))
|
htab->tlsdesc_plt = 0;
|
htab->tlsdesc_plt = 0;
|
else
|
else
|
{
|
{
|
htab->tlsdesc_got = htab->sgot->size;
|
htab->tlsdesc_got = htab->elf.sgot->size;
|
htab->sgot->size += GOT_ENTRY_SIZE;
|
htab->elf.sgot->size += GOT_ENTRY_SIZE;
|
/* Reserve room for the initial entry.
|
/* Reserve room for the initial entry.
|
FIXME: we could probably do away with it in this case. */
|
FIXME: we could probably do away with it in this case. */
|
if (htab->splt->size == 0)
|
if (htab->elf.splt->size == 0)
|
htab->splt->size += PLT_ENTRY_SIZE;
|
htab->elf.splt->size += PLT_ENTRY_SIZE;
|
htab->tlsdesc_plt = htab->splt->size;
|
htab->tlsdesc_plt = htab->elf.splt->size;
|
htab->splt->size += PLT_ENTRY_SIZE;
|
htab->elf.splt->size += PLT_ENTRY_SIZE;
|
}
|
}
|
}
|
}
|
|
|
/* We now have determined the sizes of the various dynamic sections.
|
/* We now have determined the sizes of the various dynamic sections.
|
Allocate memory for them. */
|
Allocate memory for them. */
|
| Line 2104... |
Line 2326... |
for (s = dynobj->sections; s != NULL; s = s->next)
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
{
|
{
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
continue;
|
continue;
|
|
|
if (s == htab->splt
|
if (s == htab->elf.splt
|
|| s == htab->sgot
|
|| s == htab->elf.sgot
|
|| s == htab->sgotplt
|
|| s == htab->elf.sgotplt
|
|
|| s == htab->elf.iplt
|
|
|| s == htab->elf.igotplt
|
|| s == htab->sdynbss)
|
|| s == htab->sdynbss)
|
{
|
{
|
/* Strip this section if we don't need it; see the
|
/* Strip this section if we don't need it; see the
|
comment below. */
|
comment below. */
|
}
|
}
|
else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
|
else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
|
{
|
{
|
if (s->size != 0 && s != htab->srelplt)
|
if (s->size != 0 && s != htab->elf.srelplt)
|
relocs = TRUE;
|
relocs = TRUE;
|
|
|
/* We use the reloc_count field as a counter if we need
|
/* We use the reloc_count field as a counter if we need
|
to copy relocs into the output file. */
|
to copy relocs into the output file. */
|
if (s != htab->srelplt)
|
if (s != htab->elf.srelplt)
|
s->reloc_count = 0;
|
s->reloc_count = 0;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* It's not one of our sections, so don't allocate space. */
|
/* It's not one of our sections, so don't allocate space. */
|
| Line 2173... |
Line 2397... |
{
|
{
|
if (!add_dynamic_entry (DT_DEBUG, 0))
|
if (!add_dynamic_entry (DT_DEBUG, 0))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (htab->splt->size != 0)
|
if (htab->elf.splt->size != 0)
|
{
|
{
|
if (!add_dynamic_entry (DT_PLTGOT, 0)
|
if (!add_dynamic_entry (DT_PLTGOT, 0)
|
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|
|| !add_dynamic_entry (DT_PLTREL, DT_RELA)
|
|| !add_dynamic_entry (DT_PLTREL, DT_RELA)
|
|| !add_dynamic_entry (DT_JMPREL, 0))
|
|| !add_dynamic_entry (DT_JMPREL, 0))
|
| Line 2197... |
Line 2421... |
return FALSE;
|
return FALSE;
|
|
|
/* If any dynamic relocs apply to a read-only section,
|
/* If any dynamic relocs apply to a read-only section,
|
then we need a DT_TEXTREL entry. */
|
then we need a DT_TEXTREL entry. */
|
if ((info->flags & DF_TEXTREL) == 0)
|
if ((info->flags & DF_TEXTREL) == 0)
|
elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
|
elf_link_hash_traverse (&htab->elf,
|
(PTR) info);
|
elf64_x86_64_readonly_dynrelocs,
|
|
info);
|
|
|
if ((info->flags & DF_TEXTREL) != 0)
|
if ((info->flags & DF_TEXTREL) != 0)
|
{
|
{
|
if (!add_dynamic_entry (DT_TEXTREL, 0))
|
if (!add_dynamic_entry (DT_TEXTREL, 0))
|
return FALSE;
|
return FALSE;
|
| Line 2237... |
Line 2462... |
if (!(_bfd_generic_link_add_one_symbol
|
if (!(_bfd_generic_link_add_one_symbol
|
(info, output_bfd, "_TLS_MODULE_BASE_", BSF_LOCAL,
|
(info, output_bfd, "_TLS_MODULE_BASE_", BSF_LOCAL,
|
tls_sec, 0, NULL, FALSE,
|
tls_sec, 0, NULL, FALSE,
|
bed->collect, &bh)))
|
bed->collect, &bh)))
|
return FALSE;
|
return FALSE;
|
|
|
|
elf64_x86_64_hash_table (info)->tls_module_base = bh;
|
|
|
tlsbase = (struct elf_link_hash_entry *)bh;
|
tlsbase = (struct elf_link_hash_entry *)bh;
|
tlsbase->def_regular = 1;
|
tlsbase->def_regular = 1;
|
tlsbase->other = STV_HIDDEN;
|
tlsbase->other = STV_HIDDEN;
|
(*bed->elf_backend_hide_symbol) (info, tlsbase, TRUE);
|
(*bed->elf_backend_hide_symbol) (info, tlsbase, TRUE);
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
|
/* _TLS_MODULE_BASE_ needs to be treated especially when linking
|
|
executables. Rather than setting it to the beginning of the TLS
|
|
section, we have to set it to the end. This function may be called
|
|
multiple times, it is idempotent. */
|
|
|
|
static void
|
|
elf64_x86_64_set_tls_module_base (struct bfd_link_info *info)
|
|
{
|
|
struct bfd_link_hash_entry *base;
|
|
|
|
if (!info->executable)
|
|
return;
|
|
|
|
base = elf64_x86_64_hash_table (info)->tls_module_base;
|
|
|
|
if (!base)
|
|
return;
|
|
|
|
base->u.def.value = elf_hash_table (info)->tls_size;
|
|
}
|
|
|
/* Return the base VMA address which should be subtracted from real addresses
|
/* Return the base VMA address which should be subtracted from real addresses
|
when resolving @dtpoff relocation.
|
when resolving @dtpoff relocation.
|
This is PT_TLS segment p_vaddr. */
|
This is PT_TLS segment p_vaddr. */
|
|
|
static bfd_vma
|
static bfd_vma
|
dtpoff_base (struct bfd_link_info *info)
|
elf64_x86_64_dtpoff_base (struct bfd_link_info *info)
|
{
|
{
|
/* If tls_sec is NULL, we should have signalled an error already. */
|
/* If tls_sec is NULL, we should have signalled an error already. */
|
if (elf_hash_table (info)->tls_sec == NULL)
|
if (elf_hash_table (info)->tls_sec == NULL)
|
return 0;
|
return 0;
|
return elf_hash_table (info)->tls_sec->vma;
|
return elf_hash_table (info)->tls_sec->vma;
|
| Line 2264... |
Line 2513... |
|
|
/* Return the relocation value for @tpoff relocation
|
/* Return the relocation value for @tpoff relocation
|
if STT_TLS virtual address is ADDRESS. */
|
if STT_TLS virtual address is ADDRESS. */
|
|
|
static bfd_vma
|
static bfd_vma
|
tpoff (struct bfd_link_info *info, bfd_vma address)
|
elf64_x86_64_tpoff (struct bfd_link_info *info, bfd_vma address)
|
{
|
{
|
struct elf_link_hash_table *htab = elf_hash_table (info);
|
struct elf_link_hash_table *htab = elf_hash_table (info);
|
|
|
/* If tls_segment is NULL, we should have signalled an error already. */
|
/* If tls_segment is NULL, we should have signalled an error already. */
|
if (htab->tls_sec == NULL)
|
if (htab->tls_sec == NULL)
|
| Line 2317... |
Line 2566... |
symtab_hdr = &elf_symtab_hdr (input_bfd);
|
symtab_hdr = &elf_symtab_hdr (input_bfd);
|
sym_hashes = elf_sym_hashes (input_bfd);
|
sym_hashes = elf_sym_hashes (input_bfd);
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
local_tlsdesc_gotents = elf64_x86_64_local_tlsdesc_gotent (input_bfd);
|
local_tlsdesc_gotents = elf64_x86_64_local_tlsdesc_gotent (input_bfd);
|
|
|
|
elf64_x86_64_set_tls_module_base (info);
|
|
|
rel = relocs;
|
rel = relocs;
|
relend = relocs + input_section->reloc_count;
|
relend = relocs + input_section->reloc_count;
|
for (; rel < relend; rel++)
|
for (; rel < relend; rel++)
|
{
|
{
|
unsigned int r_type;
|
unsigned int r_type;
|
| Line 2332... |
Line 2583... |
bfd_vma off, offplt;
|
bfd_vma off, offplt;
|
bfd_vma relocation;
|
bfd_vma relocation;
|
bfd_boolean unresolved_reloc;
|
bfd_boolean unresolved_reloc;
|
bfd_reloc_status_type r;
|
bfd_reloc_status_type r;
|
int tls_type;
|
int tls_type;
|
|
asection *base_got;
|
|
|
r_type = ELF64_R_TYPE (rel->r_info);
|
r_type = ELF64_R_TYPE (rel->r_info);
|
if (r_type == (int) R_X86_64_GNU_VTINHERIT
|
if (r_type == (int) R_X86_64_GNU_VTINHERIT
|
|| r_type == (int) R_X86_64_GNU_VTENTRY)
|
|| r_type == (int) R_X86_64_GNU_VTENTRY)
|
continue;
|
continue;
|
| Line 2355... |
Line 2607... |
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
{
|
{
|
sym = local_syms + r_symndx;
|
sym = local_syms + r_symndx;
|
sec = local_sections[r_symndx];
|
sec = local_sections[r_symndx];
|
|
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym,
|
|
&sec, rel);
|
|
|
|
/* Relocate against local STT_GNU_IFUNC symbol. */
|
|
if (!info->relocatable
|
|
&& ELF64_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
|
|
{
|
|
h = elf64_x86_64_get_local_sym_hash (htab, input_bfd,
|
|
rel, FALSE);
|
|
if (h == NULL)
|
|
abort ();
|
|
|
|
/* Set STT_GNU_IFUNC symbol value. */
|
|
h->root.u.def.value = sym->st_value;
|
|
h->root.u.def.section = sec;
|
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_boolean warned;
|
bfd_boolean warned;
|
|
|
| Line 2381... |
Line 2648... |
}
|
}
|
|
|
if (info->relocatable)
|
if (info->relocatable)
|
continue;
|
continue;
|
|
|
|
/* Since STT_GNU_IFUNC symbol must go through PLT, we handle
|
|
it here if it is defined in a non-shared object. */
|
|
if (h != NULL
|
|
&& h->type == STT_GNU_IFUNC
|
|
&& h->def_regular)
|
|
{
|
|
asection *plt;
|
|
bfd_vma plt_index;
|
|
const char *name;
|
|
|
|
if ((input_section->flags & SEC_ALLOC) == 0
|
|
|| h->plt.offset == (bfd_vma) -1)
|
|
abort ();
|
|
|
|
/* STT_GNU_IFUNC symbol must go through PLT. */
|
|
plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
|
|
relocation = (plt->output_section->vma
|
|
+ plt->output_offset + h->plt.offset);
|
|
|
|
switch (r_type)
|
|
{
|
|
default:
|
|
if (h->root.root.string)
|
|
name = h->root.root.string;
|
|
else
|
|
name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
|
|
NULL);
|
|
(*_bfd_error_handler)
|
|
(_("%B: relocation %s against STT_GNU_IFUNC "
|
|
"symbol `%s' isn't handled by %s"), input_bfd,
|
|
x86_64_elf_howto_table[r_type].name,
|
|
name, __FUNCTION__);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
|
|
case R_X86_64_32S:
|
|
if (info->shared)
|
|
abort ();
|
|
goto do_relocation;
|
|
|
|
case R_X86_64_64:
|
|
if (rel->r_addend != 0)
|
|
{
|
|
if (h->root.root.string)
|
|
name = h->root.root.string;
|
|
else
|
|
name = bfd_elf_sym_name (input_bfd, symtab_hdr,
|
|
sym, NULL);
|
|
(*_bfd_error_handler)
|
|
(_("%B: relocation %s against STT_GNU_IFUNC "
|
|
"symbol `%s' has non-zero addend: %d"),
|
|
input_bfd, x86_64_elf_howto_table[r_type].name,
|
|
name, rel->r_addend);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Generate dynamic relcoation only when there is a
|
|
non-GOF reference in a shared object. */
|
|
if (info->shared && h->non_got_ref)
|
|
{
|
|
Elf_Internal_Rela outrel;
|
|
bfd_byte *loc;
|
|
asection *sreloc;
|
|
|
|
/* Need a dynamic relocation to get the real function
|
|
address. */
|
|
outrel.r_offset = _bfd_elf_section_offset (output_bfd,
|
|
info,
|
|
input_section,
|
|
rel->r_offset);
|
|
if (outrel.r_offset == (bfd_vma) -1
|
|
|| outrel.r_offset == (bfd_vma) -2)
|
|
abort ();
|
|
|
|
outrel.r_offset += (input_section->output_section->vma
|
|
+ input_section->output_offset);
|
|
|
|
if (h->dynindx == -1
|
|
|| h->forced_local
|
|
|| info->executable)
|
|
{
|
|
/* This symbol is resolved locally. */
|
|
outrel.r_info = ELF64_R_INFO (0, R_X86_64_IRELATIVE);
|
|
outrel.r_addend = (h->root.u.def.value
|
|
+ h->root.u.def.section->output_section->vma
|
|
+ h->root.u.def.section->output_offset);
|
|
}
|
|
else
|
|
{
|
|
outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
|
|
outrel.r_addend = 0;
|
|
}
|
|
|
|
sreloc = htab->elf.irelifunc;
|
|
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. For an
|
|
internal symbol, we have updated addend. */
|
|
continue;
|
|
}
|
|
|
|
case R_X86_64_32:
|
|
case R_X86_64_PC32:
|
|
case R_X86_64_PC64:
|
|
case R_X86_64_PLT32:
|
|
goto do_relocation;
|
|
|
|
case R_X86_64_GOTPCREL:
|
|
case R_X86_64_GOTPCREL64:
|
|
base_got = htab->elf.sgot;
|
|
off = h->got.offset;
|
|
|
|
if (base_got == NULL)
|
|
abort ();
|
|
|
|
if (off == (bfd_vma) -1)
|
|
{
|
|
/* We can't use h->got.offset here to save state, or
|
|
even just remember the offset, as finish_dynamic_symbol
|
|
would use that as offset into .got. */
|
|
|
|
if (htab->elf.splt != NULL)
|
|
{
|
|
plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
|
|
off = (plt_index + 3) * GOT_ENTRY_SIZE;
|
|
base_got = htab->elf.sgotplt;
|
|
}
|
|
else
|
|
{
|
|
plt_index = h->plt.offset / PLT_ENTRY_SIZE;
|
|
off = plt_index * GOT_ENTRY_SIZE;
|
|
base_got = htab->elf.igotplt;
|
|
}
|
|
|
|
if (h->dynindx == -1
|
|
|| h->forced_local
|
|
|| info->symbolic)
|
|
{
|
|
/* This references the local defitionion. 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,
|
|
base_got->contents + off);
|
|
/* Note that this is harmless for the GOTPLT64
|
|
case, as -1 | 1 still is -1. */
|
|
h->got.offset |= 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
relocation = (base_got->output_section->vma
|
|
+ base_got->output_offset + off);
|
|
|
|
if (r_type != R_X86_64_GOTPCREL
|
|
&& r_type != R_X86_64_GOTPCREL64)
|
|
{
|
|
asection *gotplt;
|
|
if (htab->elf.splt != NULL)
|
|
gotplt = htab->elf.sgotplt;
|
|
else
|
|
gotplt = htab->elf.igotplt;
|
|
relocation -= (gotplt->output_section->vma
|
|
- gotplt->output_offset);
|
|
}
|
|
|
|
goto do_relocation;
|
|
}
|
|
}
|
|
|
/* When generating a shared object, the relocations handled here are
|
/* When generating a shared object, the relocations handled here are
|
copied into the output file to be resolved at run time. */
|
copied into the output file to be resolved at run time. */
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
asection *base_got;
|
|
case R_X86_64_GOT32:
|
case R_X86_64_GOT32:
|
case R_X86_64_GOT64:
|
case R_X86_64_GOT64:
|
/* Relocation is to the entry for this symbol in the global
|
/* Relocation is to the entry for this symbol in the global
|
offset table. */
|
offset table. */
|
case R_X86_64_GOTPCREL:
|
case R_X86_64_GOTPCREL:
|
| Line 2400... |
Line 2852... |
indicates the existence of a PLT entry. The difficulty is,
|
indicates the existence of a PLT entry. The difficulty is,
|
that we must calculate the GOT slot offset from the PLT
|
that we must calculate the GOT slot offset from the PLT
|
offset, if this symbol got a PLT entry (it was global).
|
offset, if this symbol got a PLT entry (it was global).
|
Additionally if it's computed from the PLT entry, then that
|
Additionally if it's computed from the PLT entry, then that
|
GOT offset is relative to .got.plt, not to .got. */
|
GOT offset is relative to .got.plt, not to .got. */
|
base_got = htab->sgot;
|
base_got = htab->elf.sgot;
|
|
|
if (htab->sgot == NULL)
|
if (htab->elf.sgot == NULL)
|
abort ();
|
abort ();
|
|
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
bfd_boolean dyn;
|
bfd_boolean dyn;
|
| Line 2420... |
Line 2872... |
state, or even just remember the offset, as
|
state, or even just remember the offset, as
|
finish_dynamic_symbol would use that as offset into
|
finish_dynamic_symbol would use that as offset into
|
.got. */
|
.got. */
|
bfd_vma plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
|
bfd_vma plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
|
off = (plt_index + 3) * GOT_ENTRY_SIZE;
|
off = (plt_index + 3) * GOT_ENTRY_SIZE;
|
base_got = htab->sgotplt;
|
base_got = htab->elf.sgotplt;
|
}
|
}
|
|
|
dyn = htab->elf.dynamic_sections_created;
|
dyn = htab->elf.dynamic_sections_created;
|
|
|
if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|
if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|
| Line 2481... |
Line 2933... |
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
|
|
/* We need to generate a R_X86_64_RELATIVE reloc
|
/* We need to generate a R_X86_64_RELATIVE reloc
|
for the dynamic linker. */
|
for the dynamic linker. */
|
s = htab->srelgot;
|
s = htab->elf.srelgot;
|
if (s == NULL)
|
if (s == NULL)
|
abort ();
|
abort ();
|
|
|
outrel.r_offset = (base_got->output_section->vma
|
outrel.r_offset = (base_got->output_section->vma
|
+ base_got->output_offset
|
+ base_got->output_offset
|
| Line 2505... |
Line 2957... |
abort ();
|
abort ();
|
|
|
relocation = base_got->output_section->vma
|
relocation = base_got->output_section->vma
|
+ base_got->output_offset + off;
|
+ base_got->output_offset + off;
|
if (r_type != R_X86_64_GOTPCREL && r_type != R_X86_64_GOTPCREL64)
|
if (r_type != R_X86_64_GOTPCREL && r_type != R_X86_64_GOTPCREL64)
|
relocation -= htab->sgotplt->output_section->vma
|
relocation -= htab->elf.sgotplt->output_section->vma
|
- htab->sgotplt->output_offset;
|
- htab->elf.sgotplt->output_offset;
|
|
|
break;
|
break;
|
|
|
case R_X86_64_GOTOFF64:
|
case R_X86_64_GOTOFF64:
|
/* Relocation is relative to the start of the global offset
|
/* Relocation is relative to the start of the global offset
|
| Line 2535... |
Line 2987... |
/* Note that sgot is not involved in this
|
/* Note that sgot is not involved in this
|
calculation. We always want the start of .got.plt. If we
|
calculation. We always want the start of .got.plt. If we
|
defined _GLOBAL_OFFSET_TABLE_ in a different way, as is
|
defined _GLOBAL_OFFSET_TABLE_ in a different way, as is
|
permitted by the ABI, we might have to change this
|
permitted by the ABI, we might have to change this
|
calculation. */
|
calculation. */
|
relocation -= htab->sgotplt->output_section->vma
|
relocation -= htab->elf.sgotplt->output_section->vma
|
+ htab->sgotplt->output_offset;
|
+ htab->elf.sgotplt->output_offset;
|
break;
|
break;
|
|
|
case R_X86_64_GOTPC32:
|
case R_X86_64_GOTPC32:
|
case R_X86_64_GOTPC64:
|
case R_X86_64_GOTPC64:
|
/* Use global offset table as symbol value. */
|
/* Use global offset table as symbol value. */
|
relocation = htab->sgotplt->output_section->vma
|
relocation = htab->elf.sgotplt->output_section->vma
|
+ htab->sgotplt->output_offset;
|
+ htab->elf.sgotplt->output_offset;
|
unresolved_reloc = FALSE;
|
unresolved_reloc = FALSE;
|
break;
|
break;
|
|
|
case R_X86_64_PLTOFF64:
|
case R_X86_64_PLTOFF64:
|
/* Relocation is PLT entry relative to GOT. For local
|
/* Relocation is PLT entry relative to GOT. For local
|
symbols it's the symbol itself relative to GOT. */
|
symbols it's the symbol itself relative to GOT. */
|
if (h != NULL
|
if (h != NULL
|
/* See PLT32 handling. */
|
/* See PLT32 handling. */
|
&& h->plt.offset != (bfd_vma) -1
|
&& h->plt.offset != (bfd_vma) -1
|
&& htab->splt != NULL)
|
&& htab->elf.splt != NULL)
|
{
|
{
|
relocation = (htab->splt->output_section->vma
|
relocation = (htab->elf.splt->output_section->vma
|
+ htab->splt->output_offset
|
+ htab->elf.splt->output_offset
|
+ h->plt.offset);
|
+ h->plt.offset);
|
unresolved_reloc = FALSE;
|
unresolved_reloc = FALSE;
|
}
|
}
|
|
|
relocation -= htab->sgotplt->output_section->vma
|
relocation -= htab->elf.sgotplt->output_section->vma
|
+ htab->sgotplt->output_offset;
|
+ htab->elf.sgotplt->output_offset;
|
break;
|
break;
|
|
|
case R_X86_64_PLT32:
|
case R_X86_64_PLT32:
|
/* Relocation is to the entry for this symbol in the
|
/* Relocation is to the entry for this symbol in the
|
procedure linkage table. */
|
procedure linkage table. */
|
| Line 2575... |
Line 3027... |
without using the procedure linkage table. */
|
without using the procedure linkage table. */
|
if (h == NULL)
|
if (h == NULL)
|
break;
|
break;
|
|
|
if (h->plt.offset == (bfd_vma) -1
|
if (h->plt.offset == (bfd_vma) -1
|
|| htab->splt == NULL)
|
|| htab->elf.splt == NULL)
|
{
|
{
|
/* We didn't make a PLT entry for this symbol. This
|
/* We didn't make a PLT entry for this symbol. This
|
happens when statically linking PIC code, or when
|
happens when statically linking PIC code, or when
|
using -Bsymbolic. */
|
using -Bsymbolic. */
|
break;
|
break;
|
}
|
}
|
|
|
relocation = (htab->splt->output_section->vma
|
relocation = (htab->elf.splt->output_section->vma
|
+ htab->splt->output_offset
|
+ htab->elf.splt->output_offset
|
+ h->plt.offset);
|
+ h->plt.offset);
|
unresolved_reloc = FALSE;
|
unresolved_reloc = FALSE;
|
break;
|
break;
|
|
|
case R_X86_64_PC8:
|
case R_X86_64_PC8:
|
case R_X86_64_PC16:
|
case R_X86_64_PC16:
|
case R_X86_64_PC32:
|
case R_X86_64_PC32:
|
if (info->shared
|
if (info->shared
|
&& !SYMBOL_REFERENCES_LOCAL (info, h)
|
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (input_section->flags & SEC_READONLY) != 0
|
&& (input_section->flags & SEC_READONLY) != 0
|
&& (!h->def_regular
|
&& h != NULL)
|
|| r_type != R_X86_64_PC32
|
|
|| h->type != STT_FUNC
|
|
|| ELF_ST_VISIBILITY (h->other) != STV_PROTECTED
|
|
|| !is_32bit_relative_branch (contents,
|
|
rel->r_offset)))
|
|
{
|
{
|
if (h->def_regular
|
bfd_boolean fail = FALSE;
|
&& r_type == R_X86_64_PC32
|
bfd_boolean branch
|
&& h->type == STT_FUNC
|
= (r_type == R_X86_64_PC32
|
&& ELF_ST_VISIBILITY (h->other) == STV_PROTECTED)
|
&& is_32bit_relative_branch (contents, rel->r_offset));
|
(*_bfd_error_handler)
|
|
(_("%B: relocation R_X86_64_PC32 against protected function `%s' can not be used when making a shared object"),
|
if (SYMBOL_REFERENCES_LOCAL (info, h))
|
input_bfd, h->root.root.string);
|
{
|
|
/* Symbol is referenced locally. Make sure it is
|
|
defined locally or for a branch. */
|
|
fail = !h->def_regular && !branch;
|
|
}
|
else
|
else
|
(*_bfd_error_handler)
|
{
|
(_("%B: relocation %s against `%s' can not be used when making a shared object; recompile with -fPIC"),
|
/* Symbol isn't referenced locally. We only allow
|
input_bfd, x86_64_elf_howto_table[r_type].name,
|
branch to symbol with non-default visibility. */
|
h->root.root.string);
|
fail = (!branch
|
|
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT);
|
|
}
|
|
|
|
if (fail)
|
|
{
|
|
const char *fmt;
|
|
const char *v;
|
|
const char *pic = "";
|
|
|
|
switch (ELF_ST_VISIBILITY (h->other))
|
|
{
|
|
case STV_HIDDEN:
|
|
v = _("hidden symbol");
|
|
break;
|
|
case STV_INTERNAL:
|
|
v = _("internal symbol");
|
|
break;
|
|
case STV_PROTECTED:
|
|
v = _("protected symbol");
|
|
break;
|
|
default:
|
|
v = _("symbol");
|
|
pic = _("; recompile with -fPIC");
|
|
break;
|
|
}
|
|
|
|
if (h->def_regular)
|
|
fmt = _("%B: relocation %s against %s `%s' can not be used when making a shared object%s");
|
|
else
|
|
fmt = _("%B: relocation %s against undefined %s `%s' can not be used when making a shared object%s");
|
|
|
|
(*_bfd_error_handler) (fmt, input_bfd,
|
|
x86_64_elf_howto_table[r_type].name,
|
|
v, h->root.root.string, pic);
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
}
|
/* Fall through. */
|
/* Fall through. */
|
|
|
case R_X86_64_8:
|
case R_X86_64_8:
|
case R_X86_64_16:
|
case R_X86_64_16:
|
case R_X86_64_32:
|
case R_X86_64_32:
|
| Line 2635... |
Line 3120... |
|
|
if ((info->shared
|
if ((info->shared
|
&& (h == NULL
|
&& (h == NULL
|
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
|| h->root.type != bfd_link_hash_undefweak)
|
|| h->root.type != bfd_link_hash_undefweak)
|
&& ((r_type != R_X86_64_PC8
|
&& (! IS_X86_64_PCREL_TYPE (r_type)
|
&& r_type != R_X86_64_PC16
|
|
&& r_type != R_X86_64_PC32
|
|
&& r_type != R_X86_64_PC64)
|
|
|| !SYMBOL_CALLS_LOCAL (info, h)))
|
|| !SYMBOL_CALLS_LOCAL (info, h)))
|
|| (ELIMINATE_COPY_RELOCS
|
|| (ELIMINATE_COPY_RELOCS
|
&& !info->shared
|
&& !info->shared
|
&& h != NULL
|
&& h != NULL
|
&& h->dynindx != -1
|
&& h->dynindx != -1
|
| Line 2679... |
Line 3161... |
|
|
/* h->dynindx may be -1 if this symbol was marked to
|
/* h->dynindx may be -1 if this symbol was marked to
|
become local. */
|
become local. */
|
else if (h != NULL
|
else if (h != NULL
|
&& h->dynindx != -1
|
&& h->dynindx != -1
|
&& (r_type == R_X86_64_PC8
|
&& (IS_X86_64_PCREL_TYPE (r_type)
|
|| r_type == R_X86_64_PC16
|
|
|| r_type == R_X86_64_PC32
|
|
|| r_type == R_X86_64_PC64
|
|
|| !info->shared
|
|| !info->shared
|
|| !SYMBOLIC_BIND (info, h)
|
|| !SYMBOLIC_BIND (info, h)
|
|| !h->def_regular))
|
|| !h->def_regular))
|
{
|
{
|
outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
|
outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
|
| Line 2735... |
Line 3214... |
outrel.r_addend = relocation + rel->r_addend;
|
outrel.r_addend = relocation + rel->r_addend;
|
}
|
}
|
}
|
}
|
|
|
sreloc = elf_section_data (input_section)->sreloc;
|
sreloc = elf_section_data (input_section)->sreloc;
|
if (sreloc == NULL)
|
|
abort ();
|
BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
|
|
|
loc = sreloc->contents;
|
loc = sreloc->contents;
|
loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
|
loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
|
bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
|
bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
|
|
|
| Line 2766... |
Line 3245... |
|
|
if (! elf64_x86_64_tls_transition (info, input_bfd,
|
if (! elf64_x86_64_tls_transition (info, input_bfd,
|
input_section, contents,
|
input_section, contents,
|
symtab_hdr, sym_hashes,
|
symtab_hdr, sym_hashes,
|
&r_type, tls_type, rel,
|
&r_type, tls_type, rel,
|
relend, h))
|
relend, h, r_symndx))
|
return FALSE;
|
return FALSE;
|
|
|
if (r_type == R_X86_64_TPOFF32)
|
if (r_type == R_X86_64_TPOFF32)
|
{
|
{
|
bfd_vma roff = rel->r_offset;
|
bfd_vma roff = rel->r_offset;
|
| Line 2786... |
Line 3265... |
movq %fs:0, %rax
|
movq %fs:0, %rax
|
leaq foo@tpoff(%rax), %rax */
|
leaq foo@tpoff(%rax), %rax */
|
memcpy (contents + roff - 4,
|
memcpy (contents + roff - 4,
|
"\x64\x48\x8b\x04\x25\0\0\0\0\x48\x8d\x80\0\0\0",
|
"\x64\x48\x8b\x04\x25\0\0\0\0\x48\x8d\x80\0\0\0",
|
16);
|
16);
|
bfd_put_32 (output_bfd, tpoff (info, relocation),
|
bfd_put_32 (output_bfd,
|
|
elf64_x86_64_tpoff (info, relocation),
|
contents + roff + 8);
|
contents + roff + 8);
|
/* Skip R_X86_64_PC32/R_X86_64_PLT32. */
|
/* Skip R_X86_64_PC32/R_X86_64_PLT32. */
|
rel++;
|
rel++;
|
continue;
|
continue;
|
}
|
}
|
| Line 2812... |
Line 3292... |
bfd_put_8 (output_bfd, 0x48 | ((type >> 2) & 1),
|
bfd_put_8 (output_bfd, 0x48 | ((type >> 2) & 1),
|
contents + roff - 3);
|
contents + roff - 3);
|
bfd_put_8 (output_bfd, 0xc7, contents + roff - 2);
|
bfd_put_8 (output_bfd, 0xc7, contents + roff - 2);
|
bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7),
|
bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7),
|
contents + roff - 1);
|
contents + roff - 1);
|
bfd_put_32 (output_bfd, tpoff (info, relocation),
|
bfd_put_32 (output_bfd,
|
|
elf64_x86_64_tpoff (info, relocation),
|
contents + roff);
|
contents + roff);
|
continue;
|
continue;
|
}
|
}
|
else if (ELF64_R_TYPE (rel->r_info) == R_X86_64_TLSDESC_CALL)
|
else if (ELF64_R_TYPE (rel->r_info) == R_X86_64_TLSDESC_CALL)
|
{
|
{
|
| Line 2878... |
Line 3359... |
bfd_put_8 (output_bfd, 0x8d,
|
bfd_put_8 (output_bfd, 0x8d,
|
contents + roff - 2);
|
contents + roff - 2);
|
bfd_put_8 (output_bfd, 0x80 | reg | (reg << 3),
|
bfd_put_8 (output_bfd, 0x80 | reg | (reg << 3),
|
contents + roff - 1);
|
contents + roff - 1);
|
}
|
}
|
bfd_put_32 (output_bfd, tpoff (info, relocation),
|
bfd_put_32 (output_bfd,
|
|
elf64_x86_64_tpoff (info, relocation),
|
contents + roff);
|
contents + roff);
|
continue;
|
continue;
|
}
|
}
|
else
|
else
|
BFD_ASSERT (FALSE);
|
BFD_ASSERT (FALSE);
|
}
|
}
|
|
|
if (htab->sgot == NULL)
|
if (htab->elf.sgot == NULL)
|
abort ();
|
abort ();
|
|
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
off = h->got.offset;
|
off = h->got.offset;
|
| Line 2912... |
Line 3394... |
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
int dr_type, indx;
|
int dr_type, indx;
|
asection *sreloc;
|
asection *sreloc;
|
|
|
if (htab->srelgot == NULL)
|
if (htab->elf.srelgot == NULL)
|
abort ();
|
abort ();
|
|
|
indx = h && h->dynindx != -1 ? h->dynindx : 0;
|
indx = h && h->dynindx != -1 ? h->dynindx : 0;
|
|
|
if (GOT_TLS_GDESC_P (tls_type))
|
if (GOT_TLS_GDESC_P (tls_type))
|
{
|
{
|
outrel.r_info = ELF64_R_INFO (indx, R_X86_64_TLSDESC);
|
outrel.r_info = ELF64_R_INFO (indx, R_X86_64_TLSDESC);
|
BFD_ASSERT (htab->sgotplt_jump_table_size + offplt
|
BFD_ASSERT (htab->sgotplt_jump_table_size + offplt
|
+ 2 * GOT_ENTRY_SIZE <= htab->sgotplt->size);
|
+ 2 * GOT_ENTRY_SIZE <= htab->elf.sgotplt->size);
|
outrel.r_offset = (htab->sgotplt->output_section->vma
|
outrel.r_offset = (htab->elf.sgotplt->output_section->vma
|
+ htab->sgotplt->output_offset
|
+ htab->elf.sgotplt->output_offset
|
+ offplt
|
+ offplt
|
+ htab->sgotplt_jump_table_size);
|
+ htab->sgotplt_jump_table_size);
|
sreloc = htab->srelplt;
|
sreloc = htab->elf.srelplt;
|
loc = sreloc->contents;
|
loc = sreloc->contents;
|
loc += sreloc->reloc_count++
|
loc += sreloc->reloc_count++
|
* sizeof (Elf64_External_Rela);
|
* sizeof (Elf64_External_Rela);
|
BFD_ASSERT (loc + sizeof (Elf64_External_Rela)
|
BFD_ASSERT (loc + sizeof (Elf64_External_Rela)
|
<= sreloc->contents + sreloc->size);
|
<= sreloc->contents + sreloc->size);
|
if (indx == 0)
|
if (indx == 0)
|
outrel.r_addend = relocation - dtpoff_base (info);
|
outrel.r_addend = relocation - elf64_x86_64_dtpoff_base (info);
|
else
|
else
|
outrel.r_addend = 0;
|
outrel.r_addend = 0;
|
bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
|
bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
|
}
|
}
|
|
|
sreloc = htab->srelgot;
|
sreloc = htab->elf.srelgot;
|
|
|
outrel.r_offset = (htab->sgot->output_section->vma
|
outrel.r_offset = (htab->elf.sgot->output_section->vma
|
+ htab->sgot->output_offset + off);
|
+ htab->elf.sgot->output_offset + off);
|
|
|
if (GOT_TLS_GD_P (tls_type))
|
if (GOT_TLS_GD_P (tls_type))
|
dr_type = R_X86_64_DTPMOD64;
|
dr_type = R_X86_64_DTPMOD64;
|
else if (GOT_TLS_GDESC_P (tls_type))
|
else if (GOT_TLS_GDESC_P (tls_type))
|
goto dr_done;
|
goto dr_done;
|
else
|
else
|
dr_type = R_X86_64_TPOFF64;
|
dr_type = R_X86_64_TPOFF64;
|
|
|
bfd_put_64 (output_bfd, 0, htab->sgot->contents + off);
|
bfd_put_64 (output_bfd, 0, htab->elf.sgot->contents + off);
|
outrel.r_addend = 0;
|
outrel.r_addend = 0;
|
if ((dr_type == R_X86_64_TPOFF64
|
if ((dr_type == R_X86_64_TPOFF64
|
|| dr_type == R_X86_64_TLSDESC) && indx == 0)
|
|| dr_type == R_X86_64_TLSDESC) && indx == 0)
|
outrel.r_addend = relocation - dtpoff_base (info);
|
outrel.r_addend = relocation - elf64_x86_64_dtpoff_base (info);
|
outrel.r_info = ELF64_R_INFO (indx, dr_type);
|
outrel.r_info = ELF64_R_INFO (indx, dr_type);
|
|
|
loc = sreloc->contents;
|
loc = sreloc->contents;
|
loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
|
loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
|
BFD_ASSERT (loc + sizeof (Elf64_External_Rela)
|
BFD_ASSERT (loc + sizeof (Elf64_External_Rela)
|
| Line 2970... |
Line 3452... |
{
|
{
|
if (indx == 0)
|
if (indx == 0)
|
{
|
{
|
BFD_ASSERT (! unresolved_reloc);
|
BFD_ASSERT (! unresolved_reloc);
|
bfd_put_64 (output_bfd,
|
bfd_put_64 (output_bfd,
|
relocation - dtpoff_base (info),
|
relocation - elf64_x86_64_dtpoff_base (info),
|
htab->sgot->contents + off + GOT_ENTRY_SIZE);
|
htab->elf.sgot->contents + off + GOT_ENTRY_SIZE);
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_put_64 (output_bfd, 0,
|
bfd_put_64 (output_bfd, 0,
|
htab->sgot->contents + off + GOT_ENTRY_SIZE);
|
htab->elf.sgot->contents + off + GOT_ENTRY_SIZE);
|
outrel.r_info = ELF64_R_INFO (indx,
|
outrel.r_info = ELF64_R_INFO (indx,
|
R_X86_64_DTPOFF64);
|
R_X86_64_DTPOFF64);
|
outrel.r_offset += GOT_ENTRY_SIZE;
|
outrel.r_offset += GOT_ENTRY_SIZE;
|
sreloc->reloc_count++;
|
sreloc->reloc_count++;
|
loc += sizeof (Elf64_External_Rela);
|
loc += sizeof (Elf64_External_Rela);
|
| Line 3002... |
Line 3484... |
abort ();
|
abort ();
|
if (r_type == ELF64_R_TYPE (rel->r_info))
|
if (r_type == ELF64_R_TYPE (rel->r_info))
|
{
|
{
|
if (r_type == R_X86_64_GOTPC32_TLSDESC
|
if (r_type == R_X86_64_GOTPC32_TLSDESC
|
|| r_type == R_X86_64_TLSDESC_CALL)
|
|| r_type == R_X86_64_TLSDESC_CALL)
|
relocation = htab->sgotplt->output_section->vma
|
relocation = htab->elf.sgotplt->output_section->vma
|
+ htab->sgotplt->output_offset
|
+ htab->elf.sgotplt->output_offset
|
+ offplt + htab->sgotplt_jump_table_size;
|
+ offplt + htab->sgotplt_jump_table_size;
|
else
|
else
|
relocation = htab->sgot->output_section->vma
|
relocation = htab->elf.sgot->output_section->vma
|
+ htab->sgot->output_offset + off;
|
+ htab->elf.sgot->output_offset + off;
|
unresolved_reloc = FALSE;
|
unresolved_reloc = FALSE;
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_vma roff = rel->r_offset;
|
bfd_vma roff = rel->r_offset;
|
| Line 3026... |
Line 3508... |
addq foo@gottpoff(%rip), %rax */
|
addq foo@gottpoff(%rip), %rax */
|
memcpy (contents + roff - 4,
|
memcpy (contents + roff - 4,
|
"\x64\x48\x8b\x04\x25\0\0\0\0\x48\x03\x05\0\0\0",
|
"\x64\x48\x8b\x04\x25\0\0\0\0\x48\x03\x05\0\0\0",
|
16);
|
16);
|
|
|
relocation = (htab->sgot->output_section->vma
|
relocation = (htab->elf.sgot->output_section->vma
|
+ htab->sgot->output_offset + off
|
+ htab->elf.sgot->output_offset + off
|
- roff
|
- roff
|
- input_section->output_section->vma
|
- input_section->output_section->vma
|
- input_section->output_offset
|
- input_section->output_offset
|
- 12);
|
- 12);
|
bfd_put_32 (output_bfd, relocation,
|
bfd_put_32 (output_bfd, relocation,
|
| Line 3061... |
Line 3543... |
suffices to change the second byte from 0x8d to
|
suffices to change the second byte from 0x8d to
|
0x8b. */
|
0x8b. */
|
bfd_put_8 (output_bfd, 0x8b, contents + roff - 2);
|
bfd_put_8 (output_bfd, 0x8b, contents + roff - 2);
|
|
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
htab->sgot->output_section->vma
|
htab->elf.sgot->output_section->vma
|
+ htab->sgot->output_offset + off
|
+ htab->elf.sgot->output_offset + off
|
- rel->r_offset
|
- rel->r_offset
|
- input_section->output_section->vma
|
- input_section->output_section->vma
|
- input_section->output_offset
|
- input_section->output_offset
|
- 4,
|
- 4,
|
contents + roff);
|
contents + roff);
|
| Line 3097... |
Line 3579... |
case R_X86_64_TLSLD:
|
case R_X86_64_TLSLD:
|
if (! elf64_x86_64_tls_transition (info, input_bfd,
|
if (! elf64_x86_64_tls_transition (info, input_bfd,
|
input_section, contents,
|
input_section, contents,
|
symtab_hdr, sym_hashes,
|
symtab_hdr, sym_hashes,
|
&r_type, GOT_UNKNOWN,
|
&r_type, GOT_UNKNOWN,
|
rel, relend, h))
|
rel, relend, h, r_symndx))
|
return FALSE;
|
return FALSE;
|
|
|
if (r_type != R_X86_64_TLSLD)
|
if (r_type != R_X86_64_TLSLD)
|
{
|
{
|
/* LD->LE transition:
|
/* LD->LE transition:
|
| Line 3115... |
Line 3597... |
/* Skip R_X86_64_PC32/R_X86_64_PLT32. */
|
/* Skip R_X86_64_PC32/R_X86_64_PLT32. */
|
rel++;
|
rel++;
|
continue;
|
continue;
|
}
|
}
|
|
|
if (htab->sgot == NULL)
|
if (htab->elf.sgot == NULL)
|
abort ();
|
abort ();
|
|
|
off = htab->tls_ld_got.offset;
|
off = htab->tls_ld_got.offset;
|
if (off & 1)
|
if (off & 1)
|
off &= ~1;
|
off &= ~1;
|
else
|
else
|
{
|
{
|
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
|
|
if (htab->srelgot == NULL)
|
if (htab->elf.srelgot == NULL)
|
abort ();
|
abort ();
|
|
|
outrel.r_offset = (htab->sgot->output_section->vma
|
outrel.r_offset = (htab->elf.sgot->output_section->vma
|
+ htab->sgot->output_offset + off);
|
+ htab->elf.sgot->output_offset + off);
|
|
|
bfd_put_64 (output_bfd, 0,
|
bfd_put_64 (output_bfd, 0,
|
htab->sgot->contents + off);
|
htab->elf.sgot->contents + off);
|
bfd_put_64 (output_bfd, 0,
|
bfd_put_64 (output_bfd, 0,
|
htab->sgot->contents + off + GOT_ENTRY_SIZE);
|
htab->elf.sgot->contents + off + GOT_ENTRY_SIZE);
|
outrel.r_info = ELF64_R_INFO (0, R_X86_64_DTPMOD64);
|
outrel.r_info = ELF64_R_INFO (0, R_X86_64_DTPMOD64);
|
outrel.r_addend = 0;
|
outrel.r_addend = 0;
|
loc = htab->srelgot->contents;
|
loc = htab->elf.srelgot->contents;
|
loc += htab->srelgot->reloc_count++ * sizeof (Elf64_External_Rela);
|
loc += htab->elf.srelgot->reloc_count++ * sizeof (Elf64_External_Rela);
|
bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
|
bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
|
htab->tls_ld_got.offset |= 1;
|
htab->tls_ld_got.offset |= 1;
|
}
|
}
|
relocation = htab->sgot->output_section->vma
|
relocation = htab->elf.sgot->output_section->vma
|
+ htab->sgot->output_offset + off;
|
+ htab->elf.sgot->output_offset + off;
|
unresolved_reloc = FALSE;
|
unresolved_reloc = FALSE;
|
break;
|
break;
|
|
|
case R_X86_64_DTPOFF32:
|
case R_X86_64_DTPOFF32:
|
if (info->shared || (input_section->flags & SEC_CODE) == 0)
|
if (!info->executable|| (input_section->flags & SEC_CODE) == 0)
|
relocation -= dtpoff_base (info);
|
relocation -= elf64_x86_64_dtpoff_base (info);
|
else
|
else
|
relocation = tpoff (info, relocation);
|
relocation = elf64_x86_64_tpoff (info, relocation);
|
break;
|
break;
|
|
|
case R_X86_64_TPOFF32:
|
case R_X86_64_TPOFF32:
|
BFD_ASSERT (! info->shared);
|
BFD_ASSERT (info->executable);
|
relocation = tpoff (info, relocation);
|
relocation = elf64_x86_64_tpoff (info, relocation);
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
| Line 3178... |
Line 3660... |
input_section,
|
input_section,
|
(long) rel->r_offset,
|
(long) rel->r_offset,
|
howto->name,
|
howto->name,
|
h->root.root.string);
|
h->root.root.string);
|
|
|
|
do_relocation:
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
contents, rel->r_offset,
|
contents, rel->r_offset,
|
relocation, rel->r_addend);
|
relocation, rel->r_addend);
|
|
|
if (r != bfd_reloc_ok)
|
if (r != bfd_reloc_ok)
|
| Line 3240... |
Line 3723... |
{
|
{
|
bfd_vma plt_index;
|
bfd_vma plt_index;
|
bfd_vma got_offset;
|
bfd_vma got_offset;
|
Elf_Internal_Rela rela;
|
Elf_Internal_Rela rela;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
|
asection *plt, *gotplt, *relplt;
|
|
|
|
/* When building a static executable, use .iplt, .igot.plt and
|
|
.rela.iplt sections for STT_GNU_IFUNC symbols. */
|
|
if (htab->elf.splt != NULL)
|
|
{
|
|
plt = htab->elf.splt;
|
|
gotplt = htab->elf.sgotplt;
|
|
relplt = htab->elf.srelplt;
|
|
}
|
|
else
|
|
{
|
|
plt = htab->elf.iplt;
|
|
gotplt = htab->elf.igotplt;
|
|
relplt = htab->elf.irelplt;
|
|
}
|
|
|
/* This symbol has an entry in the procedure linkage table. Set
|
/* This symbol has an entry in the procedure linkage table. Set
|
it up. */
|
it up. */
|
if (h->dynindx == -1
|
if ((h->dynindx == -1
|
|| htab->splt == NULL
|
&& !((h->forced_local || info->executable)
|
|| htab->sgotplt == NULL
|
&& h->def_regular
|
|| htab->srelplt == NULL)
|
&& h->type == STT_GNU_IFUNC))
|
|
|| plt == NULL
|
|
|| gotplt == NULL
|
|
|| relplt == NULL)
|
abort ();
|
abort ();
|
|
|
/* Get the index in the procedure linkage table which
|
/* Get the index in the procedure linkage table which
|
corresponds to this symbol. This is the index of this symbol
|
corresponds to this symbol. This is the index of this symbol
|
in all the symbols for which we are making plt entries. The
|
in all the symbols for which we are making plt entries. The
|
first entry in the procedure linkage table is reserved. */
|
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
|
Get the offset into the .got table of the entry that
|
corresponds to this function. Each .got entry is GOT_ENTRY_SIZE
|
corresponds to this function. Each .got entry is GOT_ENTRY_SIZE
|
bytes. The first three are reserved for the dynamic linker. */
|
bytes. The first three are reserved for the dynamic linker.
|
|
|
|
For static executables, we don't reserve anything. */
|
|
|
|
if (plt == htab->elf.splt)
|
|
{
|
|
plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
|
got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
|
got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
|
|
}
|
|
else
|
|
{
|
|
plt_index = h->plt.offset / PLT_ENTRY_SIZE;
|
|
got_offset = plt_index * GOT_ENTRY_SIZE;
|
|
}
|
|
|
/* Fill in the entry in the procedure linkage table. */
|
/* Fill in the entry in the procedure linkage table. */
|
memcpy (htab->splt->contents + h->plt.offset, elf64_x86_64_plt_entry,
|
memcpy (plt->contents + h->plt.offset, elf64_x86_64_plt_entry,
|
PLT_ENTRY_SIZE);
|
PLT_ENTRY_SIZE);
|
|
|
/* Insert the relocation positions of the plt section. The magic
|
/* Insert the relocation positions of the plt section. The magic
|
numbers at the end of the statements are the positions of the
|
numbers at the end of the statements are the positions of the
|
relocations in the plt section. */
|
relocations in the plt section. */
|
/* Put offset for jmp *name@GOTPCREL(%rip), since the
|
/* Put offset for jmp *name@GOTPCREL(%rip), since the
|
instruction uses 6 bytes, subtract this value. */
|
instruction uses 6 bytes, subtract this value. */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(htab->sgotplt->output_section->vma
|
(gotplt->output_section->vma
|
+ htab->sgotplt->output_offset
|
+ gotplt->output_offset
|
+ got_offset
|
+ got_offset
|
- htab->splt->output_section->vma
|
- plt->output_section->vma
|
- htab->splt->output_offset
|
- plt->output_offset
|
- h->plt.offset
|
- h->plt.offset
|
- 6),
|
- 6),
|
htab->splt->contents + h->plt.offset + 2);
|
plt->contents + h->plt.offset + 2);
|
|
|
|
/* Don't fill PLT entry for static executables. */
|
|
if (plt == htab->elf.splt)
|
|
{
|
/* Put relocation index. */
|
/* Put relocation index. */
|
bfd_put_32 (output_bfd, plt_index,
|
bfd_put_32 (output_bfd, plt_index,
|
htab->splt->contents + h->plt.offset + 7);
|
plt->contents + h->plt.offset + 7);
|
/* Put offset for jmp .PLT0. */
|
/* Put offset for jmp .PLT0. */
|
bfd_put_32 (output_bfd, - (h->plt.offset + PLT_ENTRY_SIZE),
|
bfd_put_32 (output_bfd, - (h->plt.offset + PLT_ENTRY_SIZE),
|
htab->splt->contents + h->plt.offset + 12);
|
plt->contents + h->plt.offset + 12);
|
|
}
|
|
|
/* Fill in the entry in the global offset table, initially this
|
/* Fill in the entry in the global offset table, initially this
|
points to the pushq instruction in the PLT which is at offset 6. */
|
points to the pushq instruction in the PLT which is at offset 6. */
|
bfd_put_64 (output_bfd, (htab->splt->output_section->vma
|
bfd_put_64 (output_bfd, (plt->output_section->vma
|
+ htab->splt->output_offset
|
+ plt->output_offset
|
+ h->plt.offset + 6),
|
+ h->plt.offset + 6),
|
htab->sgotplt->contents + got_offset);
|
gotplt->contents + got_offset);
|
|
|
/* Fill in the entry in the .rela.plt section. */
|
/* Fill in the entry in the .rela.plt section. */
|
rela.r_offset = (htab->sgotplt->output_section->vma
|
rela.r_offset = (gotplt->output_section->vma
|
+ htab->sgotplt->output_offset
|
+ gotplt->output_offset
|
+ got_offset);
|
+ got_offset);
|
|
if (h->dynindx == -1
|
|
|| ((info->executable
|
|
|| ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
|
&& h->def_regular
|
|
&& h->type == STT_GNU_IFUNC))
|
|
{
|
|
/* If an STT_GNU_IFUNC symbol is locally defined, generate
|
|
R_X86_64_IRELATIVE instead of R_X86_64_JUMP_SLOT. */
|
|
rela.r_info = ELF64_R_INFO (0, R_X86_64_IRELATIVE);
|
|
rela.r_addend = (h->root.u.def.value
|
|
+ h->root.u.def.section->output_section->vma
|
|
+ h->root.u.def.section->output_offset);
|
|
}
|
|
else
|
|
{
|
rela.r_info = ELF64_R_INFO (h->dynindx, R_X86_64_JUMP_SLOT);
|
rela.r_info = ELF64_R_INFO (h->dynindx, R_X86_64_JUMP_SLOT);
|
rela.r_addend = 0;
|
rela.r_addend = 0;
|
loc = htab->srelplt->contents + plt_index * sizeof (Elf64_External_Rela);
|
}
|
|
loc = relplt->contents + plt_index * sizeof (Elf64_External_Rela);
|
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
|
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
|
|
|
if (!h->def_regular)
|
if (!h->def_regular)
|
{
|
{
|
/* Mark the symbol as undefined, rather than as defined in
|
/* Mark the symbol as undefined, rather than as defined in
|
| Line 3326... |
Line 3860... |
Elf_Internal_Rela rela;
|
Elf_Internal_Rela rela;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
|
|
/* This symbol has an entry in the global offset table. Set it
|
/* This symbol has an entry in the global offset table. Set it
|
up. */
|
up. */
|
if (htab->sgot == NULL || htab->srelgot == NULL)
|
if (htab->elf.sgot == NULL || htab->elf.srelgot == NULL)
|
abort ();
|
abort ();
|
|
|
rela.r_offset = (htab->sgot->output_section->vma
|
rela.r_offset = (htab->elf.sgot->output_section->vma
|
+ htab->sgot->output_offset
|
+ htab->elf.sgot->output_offset
|
+ (h->got.offset &~ (bfd_vma) 1));
|
+ (h->got.offset &~ (bfd_vma) 1));
|
|
|
/* If this is a static link, or it is a -Bsymbolic link and the
|
/* 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
|
symbol is defined locally or was forced to be local because
|
of a version file, we just want to emit a RELATIVE reloc.
|
of a version file, we just want to emit a RELATIVE reloc.
|
The entry in the global offset table will already have been
|
The entry in the global offset table will already have been
|
initialized in the relocate_section function. */
|
initialized in the relocate_section function. */
|
if (info->shared
|
if (h->def_regular
|
|
&& h->type == STT_GNU_IFUNC)
|
|
{
|
|
if (info->shared)
|
|
{
|
|
/* Generate R_X86_64_GLOB_DAT. */
|
|
goto do_glob_dat;
|
|
}
|
|
else
|
|
{
|
|
asection *plt;
|
|
|
|
if (!h->pointer_equality_needed)
|
|
abort ();
|
|
|
|
/* For non-shared object, we can't use .got.plt, which
|
|
contains the real function addres if we need pointer
|
|
equality. We load the GOT entry with the PLT entry. */
|
|
plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
|
|
bfd_put_64 (output_bfd, (plt->output_section->vma
|
|
+ plt->output_offset
|
|
+ h->plt.offset),
|
|
htab->elf.sgot->contents + h->got.offset);
|
|
return TRUE;
|
|
}
|
|
}
|
|
else if (info->shared
|
&& SYMBOL_REFERENCES_LOCAL (info, h))
|
&& SYMBOL_REFERENCES_LOCAL (info, h))
|
{
|
{
|
|
if (!h->def_regular)
|
|
return FALSE;
|
BFD_ASSERT((h->got.offset & 1) != 0);
|
BFD_ASSERT((h->got.offset & 1) != 0);
|
rela.r_info = ELF64_R_INFO (0, R_X86_64_RELATIVE);
|
rela.r_info = ELF64_R_INFO (0, R_X86_64_RELATIVE);
|
rela.r_addend = (h->root.u.def.value
|
rela.r_addend = (h->root.u.def.value
|
+ h->root.u.def.section->output_section->vma
|
+ h->root.u.def.section->output_section->vma
|
+ h->root.u.def.section->output_offset);
|
+ h->root.u.def.section->output_offset);
|
}
|
}
|
else
|
else
|
{
|
{
|
BFD_ASSERT((h->got.offset & 1) == 0);
|
BFD_ASSERT((h->got.offset & 1) == 0);
|
|
do_glob_dat:
|
bfd_put_64 (output_bfd, (bfd_vma) 0,
|
bfd_put_64 (output_bfd, (bfd_vma) 0,
|
htab->sgot->contents + h->got.offset);
|
htab->elf.sgot->contents + h->got.offset);
|
rela.r_info = ELF64_R_INFO (h->dynindx, R_X86_64_GLOB_DAT);
|
rela.r_info = ELF64_R_INFO (h->dynindx, R_X86_64_GLOB_DAT);
|
rela.r_addend = 0;
|
rela.r_addend = 0;
|
}
|
}
|
|
|
loc = htab->srelgot->contents;
|
loc = htab->elf.srelgot->contents;
|
loc += htab->srelgot->reloc_count++ * sizeof (Elf64_External_Rela);
|
loc += htab->elf.srelgot->reloc_count++ * sizeof (Elf64_External_Rela);
|
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
|
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
|
}
|
}
|
|
|
if (h->needs_copy)
|
if (h->needs_copy)
|
{
|
{
|
| Line 3384... |
Line 3947... |
loc = htab->srelbss->contents;
|
loc = htab->srelbss->contents;
|
loc += htab->srelbss->reloc_count++ * sizeof (Elf64_External_Rela);
|
loc += htab->srelbss->reloc_count++ * sizeof (Elf64_External_Rela);
|
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
|
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
|
}
|
}
|
|
|
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
|
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. SYM may
|
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
be NULL for local symbols. */
|
|| h == htab->elf.hgot)
|
if (sym != NULL
|
|
&& (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
|
|| h == htab->elf.hgot))
|
sym->st_shndx = SHN_ABS;
|
sym->st_shndx = SHN_ABS;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
|
/* Finish up local dynamic symbol handling. We set the contents of
|
|
various dynamic sections here. */
|
|
|
|
static bfd_boolean
|
|
elf64_x86_64_finish_local_dynamic_symbol (void **slot, void *inf)
|
|
{
|
|
struct elf_link_hash_entry *h
|
|
= (struct elf_link_hash_entry *) *slot;
|
|
struct bfd_link_info *info
|
|
= (struct bfd_link_info *) inf;
|
|
|
|
return elf64_x86_64_finish_dynamic_symbol (info->output_bfd,
|
|
info, h, NULL);
|
|
}
|
|
|
/* Used to decide how to sort relocs in an optimal manner for the
|
/* Used to decide how to sort relocs in an optimal manner for the
|
dynamic linker, before writing them out. */
|
dynamic linker, before writing them out. */
|
|
|
static enum elf_reloc_type_class
|
static enum elf_reloc_type_class
|
elf64_x86_64_reloc_type_class (const Elf_Internal_Rela *rela)
|
elf64_x86_64_reloc_type_class (const Elf_Internal_Rela *rela)
|
| Line 3428... |
Line 4008... |
|
|
if (htab->elf.dynamic_sections_created)
|
if (htab->elf.dynamic_sections_created)
|
{
|
{
|
Elf64_External_Dyn *dyncon, *dynconend;
|
Elf64_External_Dyn *dyncon, *dynconend;
|
|
|
if (sdyn == NULL || htab->sgot == NULL)
|
if (sdyn == NULL || htab->elf.sgot == NULL)
|
abort ();
|
abort ();
|
|
|
dyncon = (Elf64_External_Dyn *) sdyn->contents;
|
dyncon = (Elf64_External_Dyn *) sdyn->contents;
|
dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
|
dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
|
for (; dyncon < dynconend; dyncon++)
|
for (; dyncon < dynconend; dyncon++)
|
| Line 3446... |
Line 4026... |
{
|
{
|
default:
|
default:
|
continue;
|
continue;
|
|
|
case DT_PLTGOT:
|
case DT_PLTGOT:
|
s = htab->sgotplt;
|
s = htab->elf.sgotplt;
|
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
|
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
|
break;
|
break;
|
|
|
case DT_JMPREL:
|
case DT_JMPREL:
|
dyn.d_un.d_ptr = htab->srelplt->output_section->vma;
|
dyn.d_un.d_ptr = htab->elf.srelplt->output_section->vma;
|
break;
|
break;
|
|
|
case DT_PLTRELSZ:
|
case DT_PLTRELSZ:
|
s = htab->srelplt->output_section;
|
s = htab->elf.srelplt->output_section;
|
dyn.d_un.d_val = s->size;
|
dyn.d_un.d_val = s->size;
|
break;
|
break;
|
|
|
case DT_RELASZ:
|
case DT_RELASZ:
|
/* The procedure linkage table relocs (DT_JMPREL) should
|
/* The procedure linkage table relocs (DT_JMPREL) should
|
| Line 3467... |
Line 4047... |
Therefore, we override the DT_RELASZ entry here to
|
Therefore, we override the DT_RELASZ entry here to
|
make it not include the JMPREL relocs. Since the
|
make it not include the JMPREL relocs. Since the
|
linker script arranges for .rela.plt to follow all
|
linker script arranges for .rela.plt to follow all
|
other relocation sections, we don't have to worry
|
other relocation sections, we don't have to worry
|
about changing the DT_RELA entry. */
|
about changing the DT_RELA entry. */
|
if (htab->srelplt != NULL)
|
if (htab->elf.srelplt != NULL)
|
{
|
{
|
s = htab->srelplt->output_section;
|
s = htab->elf.srelplt->output_section;
|
dyn.d_un.d_val -= s->size;
|
dyn.d_un.d_val -= s->size;
|
}
|
}
|
break;
|
break;
|
|
|
case DT_TLSDESC_PLT:
|
case DT_TLSDESC_PLT:
|
s = htab->splt;
|
s = htab->elf.splt;
|
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset
|
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset
|
+ htab->tlsdesc_plt;
|
+ htab->tlsdesc_plt;
|
break;
|
break;
|
|
|
case DT_TLSDESC_GOT:
|
case DT_TLSDESC_GOT:
|
s = htab->sgot;
|
s = htab->elf.sgot;
|
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset
|
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset
|
+ htab->tlsdesc_got;
|
+ htab->tlsdesc_got;
|
break;
|
break;
|
}
|
}
|
|
|
bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
|
bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
|
}
|
}
|
|
|
/* Fill in the special first entry in the procedure linkage table. */
|
/* Fill in the special first entry in the procedure linkage table. */
|
if (htab->splt && htab->splt->size > 0)
|
if (htab->elf.splt && htab->elf.splt->size > 0)
|
{
|
{
|
/* Fill in the first entry in the procedure linkage table. */
|
/* Fill in the first entry in the procedure linkage table. */
|
memcpy (htab->splt->contents, elf64_x86_64_plt0_entry,
|
memcpy (htab->elf.splt->contents, elf64_x86_64_plt0_entry,
|
PLT_ENTRY_SIZE);
|
PLT_ENTRY_SIZE);
|
/* Add offset for pushq GOT+8(%rip), since the instruction
|
/* Add offset for pushq GOT+8(%rip), since the instruction
|
uses 6 bytes subtract this value. */
|
uses 6 bytes subtract this value. */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(htab->sgotplt->output_section->vma
|
(htab->elf.sgotplt->output_section->vma
|
+ htab->sgotplt->output_offset
|
+ htab->elf.sgotplt->output_offset
|
+ 8
|
+ 8
|
- htab->splt->output_section->vma
|
- htab->elf.splt->output_section->vma
|
- htab->splt->output_offset
|
- htab->elf.splt->output_offset
|
- 6),
|
- 6),
|
htab->splt->contents + 2);
|
htab->elf.splt->contents + 2);
|
/* Add offset for jmp *GOT+16(%rip). The 12 is the offset to
|
/* Add offset for jmp *GOT+16(%rip). The 12 is the offset to
|
the end of the instruction. */
|
the end of the instruction. */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(htab->sgotplt->output_section->vma
|
(htab->elf.sgotplt->output_section->vma
|
+ htab->sgotplt->output_offset
|
+ htab->elf.sgotplt->output_offset
|
+ 16
|
+ 16
|
- htab->splt->output_section->vma
|
- htab->elf.splt->output_section->vma
|
- htab->splt->output_offset
|
- htab->elf.splt->output_offset
|
- 12),
|
- 12),
|
htab->splt->contents + 8);
|
htab->elf.splt->contents + 8);
|
|
|
elf_section_data (htab->splt->output_section)->this_hdr.sh_entsize =
|
elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize =
|
PLT_ENTRY_SIZE;
|
PLT_ENTRY_SIZE;
|
|
|
if (htab->tlsdesc_plt)
|
if (htab->tlsdesc_plt)
|
{
|
{
|
bfd_put_64 (output_bfd, (bfd_vma) 0,
|
bfd_put_64 (output_bfd, (bfd_vma) 0,
|
htab->sgot->contents + htab->tlsdesc_got);
|
htab->elf.sgot->contents + htab->tlsdesc_got);
|
|
|
memcpy (htab->splt->contents + htab->tlsdesc_plt,
|
memcpy (htab->elf.splt->contents + htab->tlsdesc_plt,
|
elf64_x86_64_plt0_entry,
|
elf64_x86_64_plt0_entry,
|
PLT_ENTRY_SIZE);
|
PLT_ENTRY_SIZE);
|
|
|
/* Add offset for pushq GOT+8(%rip), since the
|
/* Add offset for pushq GOT+8(%rip), since the
|
instruction uses 6 bytes subtract this value. */
|
instruction uses 6 bytes subtract this value. */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(htab->sgotplt->output_section->vma
|
(htab->elf.sgotplt->output_section->vma
|
+ htab->sgotplt->output_offset
|
+ htab->elf.sgotplt->output_offset
|
+ 8
|
+ 8
|
- htab->splt->output_section->vma
|
- htab->elf.splt->output_section->vma
|
- htab->splt->output_offset
|
- htab->elf.splt->output_offset
|
- htab->tlsdesc_plt
|
- htab->tlsdesc_plt
|
- 6),
|
- 6),
|
htab->splt->contents + htab->tlsdesc_plt + 2);
|
htab->elf.splt->contents + htab->tlsdesc_plt + 2);
|
/* Add offset for jmp *GOT+TDG(%rip), where TGD stands for
|
/* Add offset for jmp *GOT+TDG(%rip), where TGD stands for
|
htab->tlsdesc_got. The 12 is the offset to the end of
|
htab->tlsdesc_got. The 12 is the offset to the end of
|
the instruction. */
|
the instruction. */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(htab->sgot->output_section->vma
|
(htab->elf.sgot->output_section->vma
|
+ htab->sgot->output_offset
|
+ htab->elf.sgot->output_offset
|
+ htab->tlsdesc_got
|
+ htab->tlsdesc_got
|
- htab->splt->output_section->vma
|
- htab->elf.splt->output_section->vma
|
- htab->splt->output_offset
|
- htab->elf.splt->output_offset
|
- htab->tlsdesc_plt
|
- htab->tlsdesc_plt
|
- 12),
|
- 12),
|
htab->splt->contents + htab->tlsdesc_plt + 8);
|
htab->elf.splt->contents + htab->tlsdesc_plt + 8);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (htab->sgotplt)
|
if (htab->elf.sgotplt)
|
{
|
{
|
/* Fill in the first three entries in the global offset table. */
|
/* Fill in the first three entries in the global offset table. */
|
if (htab->sgotplt->size > 0)
|
if (htab->elf.sgotplt->size > 0)
|
{
|
{
|
/* Set the first entry in the global offset table to the address of
|
/* Set the first entry in the global offset table to the address of
|
the dynamic section. */
|
the dynamic section. */
|
if (sdyn == NULL)
|
if (sdyn == NULL)
|
bfd_put_64 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents);
|
bfd_put_64 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents);
|
else
|
else
|
bfd_put_64 (output_bfd,
|
bfd_put_64 (output_bfd,
|
sdyn->output_section->vma + sdyn->output_offset,
|
sdyn->output_section->vma + sdyn->output_offset,
|
htab->sgotplt->contents);
|
htab->elf.sgotplt->contents);
|
/* Write GOT[1] and GOT[2], needed for the dynamic linker. */
|
/* 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->elf.sgotplt->contents + GOT_ENTRY_SIZE);
|
bfd_put_64 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + GOT_ENTRY_SIZE*2);
|
bfd_put_64 (output_bfd, (bfd_vma) 0, htab->elf.sgotplt->contents + GOT_ENTRY_SIZE*2);
|
}
|
}
|
|
|
elf_section_data (htab->sgotplt->output_section)->this_hdr.sh_entsize =
|
elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
|
GOT_ENTRY_SIZE;
|
GOT_ENTRY_SIZE;
|
}
|
}
|
|
|
if (htab->sgot && htab->sgot->size > 0)
|
if (htab->elf.sgot && htab->elf.sgot->size > 0)
|
elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize
|
elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
|
= GOT_ENTRY_SIZE;
|
= GOT_ENTRY_SIZE;
|
|
|
|
/* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
|
|
htab_traverse (htab->loc_hash_table,
|
|
elf64_x86_64_finish_local_dynamic_symbol,
|
|
info);
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Return address for Ith PLT stub in section PLT, for relocation REL
|
/* Return address for Ith PLT stub in section PLT, for relocation REL
|
or (bfd_vma) -1 if it should not be included. */
|
or (bfd_vma) -1 if it should not be included. */
|
| Line 3619... |
Line 4204... |
file. We use it to put SHN_X86_64_LCOMMON items in .lbss, instead
|
file. We use it to put SHN_X86_64_LCOMMON items in .lbss, instead
|
of .bss. */
|
of .bss. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf64_x86_64_add_symbol_hook (bfd *abfd,
|
elf64_x86_64_add_symbol_hook (bfd *abfd,
|
struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
struct bfd_link_info *info,
|
Elf_Internal_Sym *sym,
|
Elf_Internal_Sym *sym,
|
const char **namep ATTRIBUTE_UNUSED,
|
const char **namep ATTRIBUTE_UNUSED,
|
flagword *flagsp ATTRIBUTE_UNUSED,
|
flagword *flagsp ATTRIBUTE_UNUSED,
|
asection **secp, bfd_vma *valp)
|
asection **secp,
|
|
bfd_vma *valp)
|
{
|
{
|
asection *lcomm;
|
asection *lcomm;
|
|
|
switch (sym->st_shndx)
|
switch (sym->st_shndx)
|
{
|
{
|
| Line 3646... |
Line 4232... |
}
|
}
|
*secp = lcomm;
|
*secp = lcomm;
|
*valp = sym->st_size;
|
*valp = sym->st_size;
|
break;
|
break;
|
}
|
}
|
|
|
|
if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
|
|
elf_tdata (info->output_bfd)->has_ifunc_symbols = TRUE;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
|
|
/* Given a BFD section, try to locate the corresponding ELF section
|
/* Given a BFD section, try to locate the corresponding ELF section
|
| Line 3825... |
Line 4415... |
|
|
#define elf_info_to_howto elf64_x86_64_info_to_howto
|
#define elf_info_to_howto elf64_x86_64_info_to_howto
|
|
|
#define bfd_elf64_bfd_link_hash_table_create \
|
#define bfd_elf64_bfd_link_hash_table_create \
|
elf64_x86_64_link_hash_table_create
|
elf64_x86_64_link_hash_table_create
|
|
#define bfd_elf64_bfd_link_hash_table_free \
|
|
elf64_x86_64_link_hash_table_free
|
#define bfd_elf64_bfd_reloc_type_lookup elf64_x86_64_reloc_type_lookup
|
#define bfd_elf64_bfd_reloc_type_lookup elf64_x86_64_reloc_type_lookup
|
#define bfd_elf64_bfd_reloc_name_lookup \
|
#define bfd_elf64_bfd_reloc_name_lookup \
|
elf64_x86_64_reloc_name_lookup
|
elf64_x86_64_reloc_name_lookup
|
|
|
#define elf_backend_adjust_dynamic_symbol elf64_x86_64_adjust_dynamic_symbol
|
#define elf_backend_adjust_dynamic_symbol elf64_x86_64_adjust_dynamic_symbol
|
| Line 3873... |
Line 4465... |
#define elf_backend_additional_program_headers \
|
#define elf_backend_additional_program_headers \
|
elf64_x86_64_additional_program_headers
|
elf64_x86_64_additional_program_headers
|
#define elf_backend_hash_symbol \
|
#define elf_backend_hash_symbol \
|
elf64_x86_64_hash_symbol
|
elf64_x86_64_hash_symbol
|
|
|
|
#undef elf_backend_post_process_headers
|
|
#define elf_backend_post_process_headers _bfd_elf_set_osabi
|
|
|
#include "elf64-target.h"
|
#include "elf64-target.h"
|
|
|
/* FreeBSD support. */
|
/* FreeBSD support. */
|
|
|
#undef TARGET_LITTLE_SYM
|
#undef TARGET_LITTLE_SYM
|
| Line 3885... |
Line 4480... |
#define TARGET_LITTLE_NAME "elf64-x86-64-freebsd"
|
#define TARGET_LITTLE_NAME "elf64-x86-64-freebsd"
|
|
|
#undef ELF_OSABI
|
#undef ELF_OSABI
|
#define ELF_OSABI ELFOSABI_FREEBSD
|
#define ELF_OSABI ELFOSABI_FREEBSD
|
|
|
|
#undef elf64_bed
|
|
#define elf64_bed elf64_x86_64_fbsd_bed
|
|
|
|
#include "elf64-target.h"
|
|
|
|
/* Intel L1OM support. */
|
|
|
|
static bfd_boolean
|
|
elf64_l1om_elf_object_p (bfd *abfd)
|
|
{
|
|
/* Set the right machine number for an L1OM elf64 file. */
|
|
bfd_default_set_arch_mach (abfd, bfd_arch_l1om, bfd_mach_l1om);
|
|
return TRUE;
|
|
}
|
|
|
|
#undef TARGET_LITTLE_SYM
|
|
#define TARGET_LITTLE_SYM bfd_elf64_l1om_vec
|
|
#undef TARGET_LITTLE_NAME
|
|
#define TARGET_LITTLE_NAME "elf64-l1om"
|
|
#undef ELF_ARCH
|
|
#define ELF_ARCH bfd_arch_l1om
|
|
|
|
#undef ELF_MACHINE_CODE
|
|
#define ELF_MACHINE_CODE EM_L1OM
|
|
|
|
#undef ELF_OSABI
|
|
|
|
#undef elf64_bed
|
|
#define elf64_bed elf64_l1om_bed
|
|
|
|
#undef elf_backend_object_p
|
|
#define elf_backend_object_p elf64_l1om_elf_object_p
|
|
|
#undef elf_backend_post_process_headers
|
#undef elf_backend_post_process_headers
|
#define elf_backend_post_process_headers _bfd_elf_set_osabi
|
|
|
#include "elf64-target.h"
|
|
|
|
/* FreeBSD L1OM support. */
|
|
|
|
#undef TARGET_LITTLE_SYM
|
|
#define TARGET_LITTLE_SYM bfd_elf64_l1om_freebsd_vec
|
|
#undef TARGET_LITTLE_NAME
|
|
#define TARGET_LITTLE_NAME "elf64-l1om-freebsd"
|
|
|
|
#undef ELF_OSABI
|
|
#define ELF_OSABI ELFOSABI_FREEBSD
|
|
|
#undef elf64_bed
|
#undef elf64_bed
|
#define elf64_bed elf64_x86_64_fbsd_bed
|
#define elf64_bed elf64_l1om_fbsd_bed
|
|
|
|
#undef elf_backend_post_process_headers
|
|
#define elf_backend_post_process_headers _bfd_elf_set_osabi
|
|
|
#include "elf64-target.h"
|
#include "elf64-target.h"
|
|
|
No newline at end of file
|
No newline at end of file
|
