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/* X86-64 specific support for ELF
Copyright (C) 2000-2023 Free Software Foundation, Inc.
Contributed by Jan Hubicka <jh@suse.cz>.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "elfxx-x86.h"
#include "dwarf2.h"
#include "libiberty.h"
#include "sframe.h"
#include "opcode/i386.h"
#ifdef CORE_HEADER
#include <stdarg.h>
#include CORE_HEADER
#endif
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
#define MINUS_ONE (~ (bfd_vma) 0)
/* Since both 32-bit and 64-bit x86-64 encode relocation type in the
identical manner, we use ELF32_R_TYPE instead of ELF64_R_TYPE to get
relocation type. We also use ELF_ST_TYPE instead of ELF64_ST_TYPE
since they are the same. */
/* The relocation "howto" table. Order of fields:
type, rightshift, size, bitsize, pc_relative, bitpos, complain_on_overflow,
special_function, name, partial_inplace, src_mask, dst_mask, pcrel_offset. */
static reloc_howto_type x86_64_elf_howto_table[] =
{
HOWTO(R_X86_64_NONE, 0, 0, 0, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_NONE", false, 0, 0x00000000,
false),
HOWTO(R_X86_64_64, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_64", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_PC32, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_PC32", false, 0, 0xffffffff,
true),
HOWTO(R_X86_64_GOT32, 0, 4, 32, false, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_GOT32", false, 0, 0xffffffff,
false),
HOWTO(R_X86_64_PLT32, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_PLT32", false, 0, 0xffffffff,
true),
HOWTO(R_X86_64_COPY, 0, 4, 32, false, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_X86_64_COPY", false, 0, 0xffffffff,
false),
HOWTO(R_X86_64_GLOB_DAT, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_GLOB_DAT", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_JUMP_SLOT, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_JUMP_SLOT", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_RELATIVE, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_RELATIVE", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_GOTPCREL, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_GOTPCREL", false, 0, 0xffffffff,
true),
HOWTO(R_X86_64_32, 0, 4, 32, false, 0, complain_overflow_unsigned,
bfd_elf_generic_reloc, "R_X86_64_32", false, 0, 0xffffffff,
false),
HOWTO(R_X86_64_32S, 0, 4, 32, false, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_32S", false, 0, 0xffffffff,
false),
HOWTO(R_X86_64_16, 0, 2, 16, false, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_X86_64_16", false, 0, 0xffff, false),
HOWTO(R_X86_64_PC16, 0, 2, 16, true, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_X86_64_PC16", false, 0, 0xffff, true),
HOWTO(R_X86_64_8, 0, 1, 8, false, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_X86_64_8", false, 0, 0xff, false),
HOWTO(R_X86_64_PC8, 0, 1, 8, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_PC8", false, 0, 0xff, true),
HOWTO(R_X86_64_DTPMOD64, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_DTPMOD64", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_DTPOFF64, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_DTPOFF64", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_TPOFF64, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_TPOFF64", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_TLSGD, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_TLSGD", false, 0, 0xffffffff,
true),
HOWTO(R_X86_64_TLSLD, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_TLSLD", false, 0, 0xffffffff,
true),
HOWTO(R_X86_64_DTPOFF32, 0, 4, 32, false, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_DTPOFF32", false, 0, 0xffffffff,
false),
HOWTO(R_X86_64_GOTTPOFF, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_GOTTPOFF", false, 0, 0xffffffff,
true),
HOWTO(R_X86_64_TPOFF32, 0, 4, 32, false, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_TPOFF32", false, 0, 0xffffffff,
false),
HOWTO(R_X86_64_PC64, 0, 8, 64, true, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_PC64", false, 0, MINUS_ONE,
true),
HOWTO(R_X86_64_GOTOFF64, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_GOTOFF64", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_GOTPC32, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_GOTPC32", false, 0, 0xffffffff,
true),
HOWTO(R_X86_64_GOT64, 0, 8, 64, false, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_GOT64", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_GOTPCREL64, 0, 8, 64, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_GOTPCREL64", false, 0, MINUS_ONE,
true),
HOWTO(R_X86_64_GOTPC64, 0, 8, 64, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_GOTPC64", false, 0, MINUS_ONE,
true),
HOWTO(R_X86_64_GOTPLT64, 0, 8, 64, false, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_GOTPLT64", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_PLTOFF64, 0, 8, 64, false, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_PLTOFF64", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_SIZE32, 0, 4, 32, false, 0, complain_overflow_unsigned,
bfd_elf_generic_reloc, "R_X86_64_SIZE32", false, 0, 0xffffffff,
false),
HOWTO(R_X86_64_SIZE64, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_SIZE64", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_GOTPC32_TLSDESC, 0, 4, 32, true, 0,
complain_overflow_bitfield, bfd_elf_generic_reloc,
"R_X86_64_GOTPC32_TLSDESC", false, 0, 0xffffffff, true),
HOWTO(R_X86_64_TLSDESC_CALL, 0, 0, 0, false, 0,
complain_overflow_dont, bfd_elf_generic_reloc,
"R_X86_64_TLSDESC_CALL",
false, 0, 0, false),
HOWTO(R_X86_64_TLSDESC, 0, 8, 64, false, 0,
complain_overflow_dont, bfd_elf_generic_reloc,
"R_X86_64_TLSDESC", false, 0, MINUS_ONE, false),
HOWTO(R_X86_64_IRELATIVE, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_IRELATIVE", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_RELATIVE64, 0, 8, 64, false, 0, complain_overflow_dont,
bfd_elf_generic_reloc, "R_X86_64_RELATIVE64", false, 0, MINUS_ONE,
false),
HOWTO(R_X86_64_PC32_BND, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_PC32_BND", false, 0, 0xffffffff,
true),
HOWTO(R_X86_64_PLT32_BND, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_PLT32_BND", false, 0, 0xffffffff,
true),
HOWTO(R_X86_64_GOTPCRELX, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_GOTPCRELX", false, 0, 0xffffffff,
true),
HOWTO(R_X86_64_REX_GOTPCRELX, 0, 4, 32, true, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_REX_GOTPCRELX", false, 0, 0xffffffff,
true),
/* We have a gap in the reloc numbers here.
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_GNU_VT* to form an index into this table. */
#define R_X86_64_standard (R_X86_64_REX_GOTPCRELX + 1)
#define R_X86_64_vt_offset (R_X86_64_GNU_VTINHERIT - R_X86_64_standard)
/* GNU extension to record C++ vtable hierarchy. */
HOWTO (R_X86_64_GNU_VTINHERIT, 0, 8, 0, false, 0, complain_overflow_dont,
NULL, "R_X86_64_GNU_VTINHERIT", false, 0, 0, false),
/* GNU extension to record C++ vtable member usage. */
HOWTO (R_X86_64_GNU_VTENTRY, 0, 8, 0, false, 0, complain_overflow_dont,
_bfd_elf_rel_vtable_reloc_fn, "R_X86_64_GNU_VTENTRY", false, 0, 0,
false),
/* Use complain_overflow_bitfield on R_X86_64_32 for x32. */
HOWTO(R_X86_64_32, 0, 4, 32, false, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_X86_64_32", false, 0, 0xffffffff,
false)
};
/* Map BFD relocs to the x86_64 elf relocs. */
struct elf_reloc_map
{
bfd_reloc_code_real_type bfd_reloc_val;
unsigned char elf_reloc_val;
};
static const struct elf_reloc_map x86_64_reloc_map[] =
{
{ BFD_RELOC_NONE, R_X86_64_NONE, },
{ BFD_RELOC_64, R_X86_64_64, },
{ BFD_RELOC_32_PCREL, R_X86_64_PC32, },
{ BFD_RELOC_X86_64_GOT32, R_X86_64_GOT32,},
{ BFD_RELOC_X86_64_PLT32, R_X86_64_PLT32,},
{ BFD_RELOC_X86_64_COPY, R_X86_64_COPY, },
{ BFD_RELOC_X86_64_GLOB_DAT, R_X86_64_GLOB_DAT, },
{ BFD_RELOC_X86_64_JUMP_SLOT, R_X86_64_JUMP_SLOT, },
{ BFD_RELOC_X86_64_RELATIVE, R_X86_64_RELATIVE, },
{ BFD_RELOC_X86_64_GOTPCREL, R_X86_64_GOTPCREL, },
{ BFD_RELOC_32, R_X86_64_32, },
{ BFD_RELOC_X86_64_32S, R_X86_64_32S, },
{ BFD_RELOC_16, R_X86_64_16, },
{ BFD_RELOC_16_PCREL, R_X86_64_PC16, },
{ BFD_RELOC_8, R_X86_64_8, },
{ BFD_RELOC_8_PCREL, R_X86_64_PC8, },
{ BFD_RELOC_X86_64_DTPMOD64, R_X86_64_DTPMOD64, },
{ BFD_RELOC_X86_64_DTPOFF64, R_X86_64_DTPOFF64, },
{ BFD_RELOC_X86_64_TPOFF64, R_X86_64_TPOFF64, },
{ BFD_RELOC_X86_64_TLSGD, R_X86_64_TLSGD, },
{ BFD_RELOC_X86_64_TLSLD, R_X86_64_TLSLD, },
{ BFD_RELOC_X86_64_DTPOFF32, R_X86_64_DTPOFF32, },
{ BFD_RELOC_X86_64_GOTTPOFF, R_X86_64_GOTTPOFF, },
{ BFD_RELOC_X86_64_TPOFF32, R_X86_64_TPOFF32, },
{ BFD_RELOC_64_PCREL, R_X86_64_PC64, },
{ BFD_RELOC_X86_64_GOTOFF64, R_X86_64_GOTOFF64, },
{ BFD_RELOC_X86_64_GOTPC32, R_X86_64_GOTPC32, },
{ BFD_RELOC_X86_64_GOT64, R_X86_64_GOT64, },
{ BFD_RELOC_X86_64_GOTPCREL64,R_X86_64_GOTPCREL64, },
{ BFD_RELOC_X86_64_GOTPC64, R_X86_64_GOTPC64, },
{ BFD_RELOC_X86_64_GOTPLT64, R_X86_64_GOTPLT64, },
{ BFD_RELOC_X86_64_PLTOFF64, R_X86_64_PLTOFF64, },
{ BFD_RELOC_SIZE32, R_X86_64_SIZE32, },
{ BFD_RELOC_SIZE64, R_X86_64_SIZE64, },
{ 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, R_X86_64_TLSDESC, },
{ BFD_RELOC_X86_64_IRELATIVE, R_X86_64_IRELATIVE, },
{ BFD_RELOC_X86_64_PC32_BND, R_X86_64_PC32_BND, },
{ BFD_RELOC_X86_64_PLT32_BND, R_X86_64_PLT32_BND, },
{ BFD_RELOC_X86_64_GOTPCRELX, R_X86_64_GOTPCRELX, },
{ BFD_RELOC_X86_64_REX_GOTPCRELX, R_X86_64_REX_GOTPCRELX, },
{ BFD_RELOC_VTABLE_INHERIT, R_X86_64_GNU_VTINHERIT, },
{ BFD_RELOC_VTABLE_ENTRY, R_X86_64_GNU_VTENTRY, },
};
static reloc_howto_type *
elf_x86_64_rtype_to_howto (bfd *abfd, unsigned r_type)
{
unsigned i;
if (r_type == (unsigned int) R_X86_64_32)
{
if (ABI_64_P (abfd))
i = r_type;
else
i = ARRAY_SIZE (x86_64_elf_howto_table) - 1;
}
else if (r_type < (unsigned int) R_X86_64_GNU_VTINHERIT
|| r_type >= (unsigned int) R_X86_64_max)
{
if (r_type >= (unsigned int) R_X86_64_standard)
{
/* xgettext:c-format */
_bfd_error_handler (_("%pB: unsupported relocation type %#x"),
abfd, r_type);
bfd_set_error (bfd_error_bad_value);
return NULL;
}
i = r_type;
}
else
i = r_type - (unsigned int) R_X86_64_vt_offset;
BFD_ASSERT (x86_64_elf_howto_table[i].type == r_type);
return &x86_64_elf_howto_table[i];
}
/* Given a BFD reloc type, return a HOWTO structure. */
static reloc_howto_type *
elf_x86_64_reloc_type_lookup (bfd *abfd,
bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0; i < sizeof (x86_64_reloc_map) / sizeof (struct elf_reloc_map);
i++)
{
if (x86_64_reloc_map[i].bfd_reloc_val == code)
return elf_x86_64_rtype_to_howto (abfd,
x86_64_reloc_map[i].elf_reloc_val);
}
return NULL;
}
static reloc_howto_type *
elf_x86_64_reloc_name_lookup (bfd *abfd,
const char *r_name)
{
unsigned int i;
if (!ABI_64_P (abfd) && strcasecmp (r_name, "R_X86_64_32") == 0)
{
/* Get x32 R_X86_64_32. */
reloc_howto_type *reloc
= &x86_64_elf_howto_table[ARRAY_SIZE (x86_64_elf_howto_table) - 1];
BFD_ASSERT (reloc->type == (unsigned int) R_X86_64_32);
return reloc;
}
for (i = 0; i < ARRAY_SIZE (x86_64_elf_howto_table); i++)
if (x86_64_elf_howto_table[i].name != NULL
&& strcasecmp (x86_64_elf_howto_table[i].name, r_name) == 0)
return &x86_64_elf_howto_table[i];
return NULL;
}
/* Given an x86_64 ELF reloc type, fill in an arelent structure. */
static bool
elf_x86_64_info_to_howto (bfd *abfd, arelent *cache_ptr,
Elf_Internal_Rela *dst)
{
unsigned r_type;
r_type = ELF32_R_TYPE (dst->r_info);
cache_ptr->howto = elf_x86_64_rtype_to_howto (abfd, r_type);
if (cache_ptr->howto == NULL)
return false;
BFD_ASSERT (r_type == cache_ptr->howto->type || cache_ptr->howto->type == R_X86_64_NONE);
return true;
}
/* Support for core dump NOTE sections. */
static bool
elf_x86_64_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
{
int offset;
size_t size;
switch (note->descsz)
{
default:
return false;
case 296: /* sizeof(istruct elf_prstatus) on Linux/x32 */
/* pr_cursig */
elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
/* pr_pid */
elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
/* pr_reg */
offset = 72;
size = 216;
break;
case 336: /* sizeof(istruct elf_prstatus) on Linux/x86_64 */
/* pr_cursig */
elf_tdata (abfd)->core->signal
= bfd_get_16 (abfd, note->descdata + 12);
/* pr_pid */
elf_tdata (abfd)->core->lwpid
= bfd_get_32 (abfd, note->descdata + 32);
/* pr_reg */
offset = 112;
size = 216;
break;
}
/* Make a ".reg/999" section. */
return _bfd_elfcore_make_pseudosection (abfd, ".reg",
size, note->descpos + offset);
}
static bool
elf_x86_64_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
{
switch (note->descsz)
{
default:
return false;
case 124:
/* sizeof (struct elf_external_linux_prpsinfo32_ugid16). */
elf_tdata (abfd)->core->pid
= bfd_get_32 (abfd, note->descdata + 12);
elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
break;
case 128:
/* sizeof (struct elf_external_linux_prpsinfo32_ugid32). */
elf_tdata (abfd)->core->pid
= bfd_get_32 (abfd, note->descdata + 12);
elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
break;
case 136:
/* sizeof (struct elf_prpsinfo) on Linux/x86_64. */
elf_tdata (abfd)->core->pid
= bfd_get_32 (abfd, note->descdata + 24);
elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
}
/* Note that for some reason, a spurious space is tacked
onto the end of the args in some (at least one anyway)
implementations, so strip it off if it exists. */
{
char *command = elf_tdata (abfd)->core->command;
int n = strlen (command);
if (0 < n && command[n - 1] == ' ')
command[n - 1] = '\0';
}
return true;
}
#ifdef CORE_HEADER
# if GCC_VERSION >= 8000
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wstringop-truncation"
# endif
static char *
elf_x86_64_write_core_note (bfd *abfd, char *buf, int *bufsiz,
int note_type, ...)
{
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
va_list ap;
const char *fname, *psargs;
long long pid;
int cursig;
const void *gregs;
switch (note_type)
{
default:
return NULL;
case NT_PRPSINFO:
va_start (ap, note_type);
fname = va_arg (ap, const char *);
psargs = va_arg (ap, const char *);
va_end (ap);
if (bed->s->elfclass == ELFCLASS32)
{
prpsinfo32_t data;
memset (&data, 0, sizeof (data));
strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
&data, sizeof (data));
}
else
{
prpsinfo64_t data;
memset (&data, 0, sizeof (data));
strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
&data, sizeof (data));
}
/* NOTREACHED */
case NT_PRSTATUS:
va_start (ap, note_type);
pid = va_arg (ap, long long);
cursig = va_arg (ap, int);
gregs = va_arg (ap, const void *);
va_end (ap);
if (bed->s->elfclass == ELFCLASS32)
{
if (bed->elf_machine_code == EM_X86_64)
{
prstatusx32_t prstat;
memset (&prstat, 0, sizeof (prstat));
prstat.pr_pid = pid;
prstat.pr_cursig = cursig;
memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
&prstat, sizeof (prstat));
}
else
{
prstatus32_t prstat;
memset (&prstat, 0, sizeof (prstat));
prstat.pr_pid = pid;
prstat.pr_cursig = cursig;
memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
&prstat, sizeof (prstat));
}
}
else
{
prstatus64_t prstat;
memset (&prstat, 0, sizeof (prstat));
prstat.pr_pid = pid;
prstat.pr_cursig = cursig;
memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
&prstat, sizeof (prstat));
}
}
/* NOTREACHED */
}
# if GCC_VERSION >= 8000
# pragma GCC diagnostic pop
# endif
#endif
/* Functions for the x86-64 ELF linker. */
/* The size in bytes of an entry in the global offset table. */
#define GOT_ENTRY_SIZE 8
/* The size in bytes of an entry in the lazy procedure linkage table. */
#define LAZY_PLT_ENTRY_SIZE 16
/* The size in bytes of an entry in the non-lazy procedure linkage
table. */
#define NON_LAZY_PLT_ENTRY_SIZE 8
/* The first entry in a lazy procedure linkage table looks like this.
See the SVR4 ABI i386 supplement and the x86-64 ABI to see how this
works. */
static const bfd_byte elf_x86_64_lazy_plt0_entry[LAZY_PLT_ENTRY_SIZE] =
{
0xff, 0x35, 8, 0, 0, 0, /* pushq GOT+8(%rip) */
0xff, 0x25, 16, 0, 0, 0, /* jmpq *GOT+16(%rip) */
0x0f, 0x1f, 0x40, 0x00 /* nopl 0(%rax) */
};
/* Subsequent entries in a lazy procedure linkage table look like this. */
static const bfd_byte elf_x86_64_lazy_plt_entry[LAZY_PLT_ENTRY_SIZE] =
{
0xff, 0x25, /* jmpq *name@GOTPC(%rip) */
0, 0, 0, 0, /* replaced with offset to this symbol in .got. */
0x68, /* pushq immediate */
0, 0, 0, 0, /* replaced with index into relocation table. */
0xe9, /* jmp relative */
0, 0, 0, 0 /* replaced with offset to start of .plt0. */
};
/* The first entry in a lazy procedure linkage table with BND prefix
like this. */
static const bfd_byte elf_x86_64_lazy_bnd_plt0_entry[LAZY_PLT_ENTRY_SIZE] =
{
0xff, 0x35, 8, 0, 0, 0, /* pushq GOT+8(%rip) */
0xf2, 0xff, 0x25, 16, 0, 0, 0, /* bnd jmpq *GOT+16(%rip) */
0x0f, 0x1f, 0 /* nopl (%rax) */
};
/* Subsequent entries for branches with BND prefx in a lazy procedure
linkage table look like this. */
static const bfd_byte elf_x86_64_lazy_bnd_plt_entry[LAZY_PLT_ENTRY_SIZE] =
{
0x68, 0, 0, 0, 0, /* pushq immediate */
0xf2, 0xe9, 0, 0, 0, 0, /* bnd jmpq relative */
0x0f, 0x1f, 0x44, 0, 0 /* nopl 0(%rax,%rax,1) */
};
/* The first entry in the IBT-enabled lazy procedure linkage table is the
the same as the lazy PLT with BND prefix so that bound registers are
preserved when control is passed to dynamic linker. Subsequent
entries for a IBT-enabled lazy procedure linkage table look like
this. */
static const bfd_byte elf_x86_64_lazy_ibt_plt_entry[LAZY_PLT_ENTRY_SIZE] =
{
0xf3, 0x0f, 0x1e, 0xfa, /* endbr64 */
0x68, 0, 0, 0, 0, /* pushq immediate */
0xf2, 0xe9, 0, 0, 0, 0, /* bnd jmpq relative */
0x90 /* nop */
};
/* The first entry in the x32 IBT-enabled lazy procedure linkage table
is the same as the normal lazy PLT. Subsequent entries for an
x32 IBT-enabled lazy procedure linkage table look like this. */
static const bfd_byte elf_x32_lazy_ibt_plt_entry[LAZY_PLT_ENTRY_SIZE] =
{
0xf3, 0x0f, 0x1e, 0xfa, /* endbr64 */
0x68, 0, 0, 0, 0, /* pushq immediate */
0xe9, 0, 0, 0, 0, /* jmpq relative */
0x66, 0x90 /* xchg %ax,%ax */
};
/* Entries in the non-lazey procedure linkage table look like this. */
static const bfd_byte elf_x86_64_non_lazy_plt_entry[NON_LAZY_PLT_ENTRY_SIZE] =
{
0xff, 0x25, /* jmpq *name@GOTPC(%rip) */
0, 0, 0, 0, /* replaced with offset to this symbol in .got. */
0x66, 0x90 /* xchg %ax,%ax */
};
/* Entries for branches with BND prefix in the non-lazey procedure
linkage table look like this. */
static const bfd_byte elf_x86_64_non_lazy_bnd_plt_entry[NON_LAZY_PLT_ENTRY_SIZE] =
{
0xf2, 0xff, 0x25, /* bnd jmpq *name@GOTPC(%rip) */
0, 0, 0, 0, /* replaced with offset to this symbol in .got. */
0x90 /* nop */
};
/* Entries for branches with IBT-enabled in the non-lazey procedure
linkage table look like this. They have the same size as the lazy
PLT entry. */
static const bfd_byte elf_x86_64_non_lazy_ibt_plt_entry[LAZY_PLT_ENTRY_SIZE] =
{
0xf3, 0x0f, 0x1e, 0xfa, /* endbr64 */
0xf2, 0xff, 0x25, /* bnd jmpq *name@GOTPC(%rip) */
0, 0, 0, 0, /* replaced with offset to this symbol in .got. */
0x0f, 0x1f, 0x44, 0x00, 0x00 /* nopl 0x0(%rax,%rax,1) */
};
/* Entries for branches with IBT-enabled in the x32 non-lazey procedure
linkage table look like this. They have the same size as the lazy
PLT entry. */
static const bfd_byte elf_x32_non_lazy_ibt_plt_entry[LAZY_PLT_ENTRY_SIZE] =
{
0xf3, 0x0f, 0x1e, 0xfa, /* endbr64 */
0xff, 0x25, /* jmpq *name@GOTPC(%rip) */
0, 0, 0, 0, /* replaced with offset to this symbol in .got. */
0x66, 0x0f, 0x1f, 0x44, 0x00, 0x00 /* nopw 0x0(%rax,%rax,1) */
};
/* The TLSDESC entry in a lazy procedure linkage table. */
static const bfd_byte elf_x86_64_tlsdesc_plt_entry[LAZY_PLT_ENTRY_SIZE] =
{
0xf3, 0x0f, 0x1e, 0xfa, /* endbr64 */
0xff, 0x35, 8, 0, 0, 0, /* pushq GOT+8(%rip) */
0xff, 0x25, 16, 0, 0, 0 /* jmpq *GOT+TDG(%rip) */
};
/* .eh_frame covering the lazy .plt section. */
static const bfd_byte elf_x86_64_eh_frame_lazy_plt[] =
{
PLT_CIE_LENGTH, 0, 0, 0, /* CIE length */
0, 0, 0, 0, /* CIE ID */
1, /* CIE version */
'z', 'R', 0, /* Augmentation string */
1, /* Code alignment factor */
0x78, /* Data alignment factor */
16, /* Return address column */
1, /* Augmentation size */
DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding */
DW_CFA_def_cfa, 7, 8, /* DW_CFA_def_cfa: r7 (rsp) ofs 8 */
DW_CFA_offset + 16, 1, /* DW_CFA_offset: r16 (rip) at cfa-8 */
DW_CFA_nop, DW_CFA_nop,
PLT_FDE_LENGTH, 0, 0, 0, /* FDE length */
PLT_CIE_LENGTH + 8, 0, 0, 0, /* CIE pointer */
0, 0, 0, 0, /* R_X86_64_PC32 .plt goes here */
0, 0, 0, 0, /* .plt size goes here */
0, /* Augmentation size */
DW_CFA_def_cfa_offset, 16, /* DW_CFA_def_cfa_offset: 16 */
DW_CFA_advance_loc + 6, /* DW_CFA_advance_loc: 6 to __PLT__+6 */
DW_CFA_def_cfa_offset, 24, /* DW_CFA_def_cfa_offset: 24 */
DW_CFA_advance_loc + 10, /* DW_CFA_advance_loc: 10 to __PLT__+16 */
DW_CFA_def_cfa_expression, /* DW_CFA_def_cfa_expression */
11, /* Block length */
DW_OP_breg7, 8, /* DW_OP_breg7 (rsp): 8 */
DW_OP_breg16, 0, /* DW_OP_breg16 (rip): 0 */
DW_OP_lit15, DW_OP_and, DW_OP_lit11, DW_OP_ge,
DW_OP_lit3, DW_OP_shl, DW_OP_plus,
DW_CFA_nop, DW_CFA_nop, DW_CFA_nop, DW_CFA_nop
};
/* .eh_frame covering the lazy BND .plt section. */
static const bfd_byte elf_x86_64_eh_frame_lazy_bnd_plt[] =
{
PLT_CIE_LENGTH, 0, 0, 0, /* CIE length */
0, 0, 0, 0, /* CIE ID */
1, /* CIE version */
'z', 'R', 0, /* Augmentation string */
1, /* Code alignment factor */
0x78, /* Data alignment factor */
16, /* Return address column */
1, /* Augmentation size */
DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding */
DW_CFA_def_cfa, 7, 8, /* DW_CFA_def_cfa: r7 (rsp) ofs 8 */
DW_CFA_offset + 16, 1, /* DW_CFA_offset: r16 (rip) at cfa-8 */
DW_CFA_nop, DW_CFA_nop,
PLT_FDE_LENGTH, 0, 0, 0, /* FDE length */
PLT_CIE_LENGTH + 8, 0, 0, 0, /* CIE pointer */
0, 0, 0, 0, /* R_X86_64_PC32 .plt goes here */
0, 0, 0, 0, /* .plt size goes here */
0, /* Augmentation size */
DW_CFA_def_cfa_offset, 16, /* DW_CFA_def_cfa_offset: 16 */
DW_CFA_advance_loc + 6, /* DW_CFA_advance_loc: 6 to __PLT__+6 */
DW_CFA_def_cfa_offset, 24, /* DW_CFA_def_cfa_offset: 24 */
DW_CFA_advance_loc + 10, /* DW_CFA_advance_loc: 10 to __PLT__+16 */
DW_CFA_def_cfa_expression, /* DW_CFA_def_cfa_expression */
11, /* Block length */
DW_OP_breg7, 8, /* DW_OP_breg7 (rsp): 8 */
DW_OP_breg16, 0, /* DW_OP_breg16 (rip): 0 */
DW_OP_lit15, DW_OP_and, DW_OP_lit5, DW_OP_ge,
DW_OP_lit3, DW_OP_shl, DW_OP_plus,
DW_CFA_nop, DW_CFA_nop, DW_CFA_nop, DW_CFA_nop
};
/* .eh_frame covering the lazy .plt section with IBT-enabled. */
static const bfd_byte elf_x86_64_eh_frame_lazy_ibt_plt[] =
{
PLT_CIE_LENGTH, 0, 0, 0, /* CIE length */
0, 0, 0, 0, /* CIE ID */
1, /* CIE version */
'z', 'R', 0, /* Augmentation string */
1, /* Code alignment factor */
0x78, /* Data alignment factor */
16, /* Return address column */
1, /* Augmentation size */
DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding */
DW_CFA_def_cfa, 7, 8, /* DW_CFA_def_cfa: r7 (rsp) ofs 8 */
DW_CFA_offset + 16, 1, /* DW_CFA_offset: r16 (rip) at cfa-8 */
DW_CFA_nop, DW_CFA_nop,
PLT_FDE_LENGTH, 0, 0, 0, /* FDE length */
PLT_CIE_LENGTH + 8, 0, 0, 0, /* CIE pointer */
0, 0, 0, 0, /* R_X86_64_PC32 .plt goes here */
0, 0, 0, 0, /* .plt size goes here */
0, /* Augmentation size */
DW_CFA_def_cfa_offset, 16, /* DW_CFA_def_cfa_offset: 16 */
DW_CFA_advance_loc + 6, /* DW_CFA_advance_loc: 6 to __PLT__+6 */
DW_CFA_def_cfa_offset, 24, /* DW_CFA_def_cfa_offset: 24 */
DW_CFA_advance_loc + 10, /* DW_CFA_advance_loc: 10 to __PLT__+16 */
DW_CFA_def_cfa_expression, /* DW_CFA_def_cfa_expression */
11, /* Block length */
DW_OP_breg7, 8, /* DW_OP_breg7 (rsp): 8 */
DW_OP_breg16, 0, /* DW_OP_breg16 (rip): 0 */
DW_OP_lit15, DW_OP_and, DW_OP_lit10, DW_OP_ge,
DW_OP_lit3, DW_OP_shl, DW_OP_plus,
DW_CFA_nop, DW_CFA_nop, DW_CFA_nop, DW_CFA_nop
};
/* .eh_frame covering the x32 lazy .plt section with IBT-enabled. */
static const bfd_byte elf_x32_eh_frame_lazy_ibt_plt[] =
{
PLT_CIE_LENGTH, 0, 0, 0, /* CIE length */
0, 0, 0, 0, /* CIE ID */
1, /* CIE version */
'z', 'R', 0, /* Augmentation string */
1, /* Code alignment factor */
0x78, /* Data alignment factor */
16, /* Return address column */
1, /* Augmentation size */
DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding */
DW_CFA_def_cfa, 7, 8, /* DW_CFA_def_cfa: r7 (rsp) ofs 8 */
DW_CFA_offset + 16, 1, /* DW_CFA_offset: r16 (rip) at cfa-8 */
DW_CFA_nop, DW_CFA_nop,
PLT_FDE_LENGTH, 0, 0, 0, /* FDE length */
PLT_CIE_LENGTH + 8, 0, 0, 0, /* CIE pointer */
0, 0, 0, 0, /* R_X86_64_PC32 .plt goes here */
0, 0, 0, 0, /* .plt size goes here */
0, /* Augmentation size */
DW_CFA_def_cfa_offset, 16, /* DW_CFA_def_cfa_offset: 16 */
DW_CFA_advance_loc + 6, /* DW_CFA_advance_loc: 6 to __PLT__+6 */
DW_CFA_def_cfa_offset, 24, /* DW_CFA_def_cfa_offset: 24 */
DW_CFA_advance_loc + 10, /* DW_CFA_advance_loc: 10 to __PLT__+16 */
DW_CFA_def_cfa_expression, /* DW_CFA_def_cfa_expression */
11, /* Block length */
DW_OP_breg7, 8, /* DW_OP_breg7 (rsp): 8 */
DW_OP_breg16, 0, /* DW_OP_breg16 (rip): 0 */
DW_OP_lit15, DW_OP_and, DW_OP_lit9, DW_OP_ge,
DW_OP_lit3, DW_OP_shl, DW_OP_plus,
DW_CFA_nop, DW_CFA_nop, DW_CFA_nop, DW_CFA_nop
};
/* .eh_frame covering the non-lazy .plt section. */
static const bfd_byte elf_x86_64_eh_frame_non_lazy_plt[] =
{
#define PLT_GOT_FDE_LENGTH 20
PLT_CIE_LENGTH, 0, 0, 0, /* CIE length */
0, 0, 0, 0, /* CIE ID */
1, /* CIE version */
'z', 'R', 0, /* Augmentation string */
1, /* Code alignment factor */
0x78, /* Data alignment factor */
16, /* Return address column */
1, /* Augmentation size */
DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding */
DW_CFA_def_cfa, 7, 8, /* DW_CFA_def_cfa: r7 (rsp) ofs 8 */
DW_CFA_offset + 16, 1, /* DW_CFA_offset: r16 (rip) at cfa-8 */
DW_CFA_nop, DW_CFA_nop,
PLT_GOT_FDE_LENGTH, 0, 0, 0, /* FDE length */
PLT_CIE_LENGTH + 8, 0, 0, 0, /* CIE pointer */
0, 0, 0, 0, /* the start of non-lazy .plt goes here */
0, 0, 0, 0, /* non-lazy .plt size goes here */
0, /* Augmentation size */
DW_CFA_nop, DW_CFA_nop, DW_CFA_nop, DW_CFA_nop,
DW_CFA_nop, DW_CFA_nop, DW_CFA_nop
};
static const sframe_frame_row_entry elf_x86_64_sframe_null_fre =
{
0,
{16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, /* 12 bytes. */
SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B) /* FRE info. */
};
/* .sframe FRE covering the .plt section entry. */
static const sframe_frame_row_entry elf_x86_64_sframe_plt0_fre1 =
{
0, /* SFrame FRE start address. */
{16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, /* 12 bytes. */
SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B) /* FRE info. */
};
/* .sframe FRE covering the .plt section entry. */
static const sframe_frame_row_entry elf_x86_64_sframe_plt0_fre2 =
{
6, /* SFrame FRE start address. */
{24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, /* 12 bytes. */
SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B) /* FRE info. */
};
/* .sframe FRE covering the .plt section entry. */
static const sframe_frame_row_entry elf_x86_64_sframe_pltn_fre1 =
{
0, /* SFrame FRE start address. */
{8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, /* 12 bytes. */
SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B) /* FRE info. */
};
/* .sframe FRE covering the .plt section entry. */
static const sframe_frame_row_entry elf_x86_64_sframe_pltn_fre2 =
{
11, /* SFrame FRE start address. */
{16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, /* 12 bytes. */
SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B) /* FRE info. */
};
/* .sframe FRE covering the second .plt section entry. */
static const sframe_frame_row_entry elf_x86_64_sframe_sec_pltn_fre1 =
{
0, /* SFrame FRE start address. */
{8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, /* 12 bytes. */
SFRAME_V1_FRE_INFO (SFRAME_BASE_REG_SP, 1, SFRAME_FRE_OFFSET_1B) /* FRE info. */
};
/* SFrame helper object for non-lazy PLT. Also used for IBT enabled PLT. */
static const struct elf_x86_sframe_plt elf_x86_64_sframe_non_lazy_plt =
{
LAZY_PLT_ENTRY_SIZE,
2, /* Number of FREs for PLT0. */
/* Array of SFrame FREs for plt0. */
{ &elf_x86_64_sframe_plt0_fre1, &elf_x86_64_sframe_plt0_fre2 },
LAZY_PLT_ENTRY_SIZE,
1, /* Number of FREs for PLTn. */
/* Array of SFrame FREs for plt. */
{ &elf_x86_64_sframe_sec_pltn_fre1, &elf_x86_64_sframe_null_fre },
0,
0, /* There is no second PLT necessary. */
{ &elf_x86_64_sframe_null_fre }
};
/* SFrame helper object for lazy PLT. Also used for IBT enabled PLT. */
static const struct elf_x86_sframe_plt elf_x86_64_sframe_plt =
{
LAZY_PLT_ENTRY_SIZE,
2, /* Number of FREs for PLT0. */
/* Array of SFrame FREs for plt0. */
{ &elf_x86_64_sframe_plt0_fre1, &elf_x86_64_sframe_plt0_fre2 },
LAZY_PLT_ENTRY_SIZE,
2, /* Number of FREs for PLTn. */
/* Array of SFrame FREs for plt. */
{ &elf_x86_64_sframe_pltn_fre1, &elf_x86_64_sframe_pltn_fre2 },
NON_LAZY_PLT_ENTRY_SIZE,
1, /* Number of FREs for PLTn for second PLT. */
/* FREs for second plt (stack trace info for .plt.got is
identical). Used when IBT or non-lazy PLT is in effect. */
{ &elf_x86_64_sframe_sec_pltn_fre1 }
};
/* These are the standard parameters. */
static const struct elf_x86_lazy_plt_layout elf_x86_64_lazy_plt =
{
elf_x86_64_lazy_plt0_entry, /* plt0_entry */
LAZY_PLT_ENTRY_SIZE, /* plt0_entry_size */
elf_x86_64_lazy_plt_entry, /* plt_entry */
LAZY_PLT_ENTRY_SIZE, /* plt_entry_size */
elf_x86_64_tlsdesc_plt_entry, /* plt_tlsdesc_entry */
LAZY_PLT_ENTRY_SIZE, /* plt_tlsdesc_entry_size */
6, /* plt_tlsdesc_got1_offset */
12, /* plt_tlsdesc_got2_offset */
10, /* plt_tlsdesc_got1_insn_end */
16, /* plt_tlsdesc_got2_insn_end */
2, /* plt0_got1_offset */
8, /* plt0_got2_offset */
12, /* plt0_got2_insn_end */
2, /* plt_got_offset */
7, /* plt_reloc_offset */
12, /* plt_plt_offset */
6, /* plt_got_insn_size */
LAZY_PLT_ENTRY_SIZE, /* plt_plt_insn_end */
6, /* plt_lazy_offset */
elf_x86_64_lazy_plt0_entry, /* pic_plt0_entry */
elf_x86_64_lazy_plt_entry, /* pic_plt_entry */
elf_x86_64_eh_frame_lazy_plt, /* eh_frame_plt */
sizeof (elf_x86_64_eh_frame_lazy_plt) /* eh_frame_plt_size */
};
static const struct elf_x86_non_lazy_plt_layout elf_x86_64_non_lazy_plt =
{
elf_x86_64_non_lazy_plt_entry, /* plt_entry */
elf_x86_64_non_lazy_plt_entry, /* pic_plt_entry */
NON_LAZY_PLT_ENTRY_SIZE, /* plt_entry_size */
2, /* plt_got_offset */
6, /* plt_got_insn_size */
elf_x86_64_eh_frame_non_lazy_plt, /* eh_frame_plt */
sizeof (elf_x86_64_eh_frame_non_lazy_plt) /* eh_frame_plt_size */
};
static const struct elf_x86_lazy_plt_layout elf_x86_64_lazy_bnd_plt =
{
elf_x86_64_lazy_bnd_plt0_entry, /* plt0_entry */
LAZY_PLT_ENTRY_SIZE, /* plt0_entry_size */
elf_x86_64_lazy_bnd_plt_entry, /* plt_entry */
LAZY_PLT_ENTRY_SIZE, /* plt_entry_size */
elf_x86_64_tlsdesc_plt_entry, /* plt_tlsdesc_entry */
LAZY_PLT_ENTRY_SIZE, /* plt_tlsdesc_entry_size */
6, /* plt_tlsdesc_got1_offset */
12, /* plt_tlsdesc_got2_offset */
10, /* plt_tlsdesc_got1_insn_end */
16, /* plt_tlsdesc_got2_insn_end */
2, /* plt0_got1_offset */
1+8, /* plt0_got2_offset */
1+12, /* plt0_got2_insn_end */
1+2, /* plt_got_offset */
1, /* plt_reloc_offset */
7, /* plt_plt_offset */
1+6, /* plt_got_insn_size */
11, /* plt_plt_insn_end */
0, /* plt_lazy_offset */
elf_x86_64_lazy_bnd_plt0_entry, /* pic_plt0_entry */
elf_x86_64_lazy_bnd_plt_entry, /* pic_plt_entry */
elf_x86_64_eh_frame_lazy_bnd_plt, /* eh_frame_plt */
sizeof (elf_x86_64_eh_frame_lazy_bnd_plt) /* eh_frame_plt_size */
};
static const struct elf_x86_non_lazy_plt_layout elf_x86_64_non_lazy_bnd_plt =
{
elf_x86_64_non_lazy_bnd_plt_entry, /* plt_entry */
elf_x86_64_non_lazy_bnd_plt_entry, /* pic_plt_entry */
NON_LAZY_PLT_ENTRY_SIZE, /* plt_entry_size */
1+2, /* plt_got_offset */
1+6, /* plt_got_insn_size */
elf_x86_64_eh_frame_non_lazy_plt, /* eh_frame_plt */
sizeof (elf_x86_64_eh_frame_non_lazy_plt) /* eh_frame_plt_size */
};
static const struct elf_x86_lazy_plt_layout elf_x86_64_lazy_ibt_plt =
{
elf_x86_64_lazy_bnd_plt0_entry, /* plt0_entry */
LAZY_PLT_ENTRY_SIZE, /* plt0_entry_size */
elf_x86_64_lazy_ibt_plt_entry, /* plt_entry */
LAZY_PLT_ENTRY_SIZE, /* plt_entry_size */
elf_x86_64_tlsdesc_plt_entry, /* plt_tlsdesc_entry */
LAZY_PLT_ENTRY_SIZE, /* plt_tlsdesc_entry_size */
6, /* plt_tlsdesc_got1_offset */