/* X86-64 specific support for ELF
- Copyright (C) 2000-2020 Free Software Foundation, Inc.
+ Copyright (C) 2000-2024 Free Software Foundation, Inc.
Contributed by Jan Hubicka <jh@suse.cz>.
This file is part of BFD, the Binary File Descriptor library.
MA 02110-1301, USA. */
#include "elfxx-x86.h"
-#include "elf-nacl.h"
#include "dwarf2.h"
#include "libiberty.h"
+#include "sframe.h"
#include "opcode/i386.h"
-#include "elf/x86-64.h"
#ifdef CORE_HEADER
#include <stdarg.h>
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, 3, 0, FALSE, 0, complain_overflow_dont,
- bfd_elf_generic_reloc, "R_X86_64_NONE", FALSE, 0x00000000, 0x00000000,
- FALSE),
- HOWTO(R_X86_64_64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_64", FALSE, MINUS_ONE, MINUS_ONE,
- FALSE),
- HOWTO(R_X86_64_PC32, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_PC32", FALSE, 0xffffffff, 0xffffffff,
- TRUE),
- HOWTO(R_X86_64_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOT32", FALSE, 0xffffffff, 0xffffffff,
- FALSE),
- HOWTO(R_X86_64_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_PLT32", FALSE, 0xffffffff, 0xffffffff,
- TRUE),
- HOWTO(R_X86_64_COPY, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_COPY", FALSE, 0xffffffff, 0xffffffff,
- FALSE),
- HOWTO(R_X86_64_GLOB_DAT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_GLOB_DAT", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_JUMP_SLOT, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_JUMP_SLOT", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_RELATIVE, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_RELATIVE", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_GOTPCREL, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOTPCREL", FALSE, 0xffffffff,
- 0xffffffff, TRUE),
- HOWTO(R_X86_64_32, 0, 2, 32, FALSE, 0, complain_overflow_unsigned,
- bfd_elf_generic_reloc, "R_X86_64_32", FALSE, 0xffffffff, 0xffffffff,
- FALSE),
- HOWTO(R_X86_64_32S, 0, 2, 32, FALSE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_32S", FALSE, 0xffffffff, 0xffffffff,
- FALSE),
- HOWTO(R_X86_64_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_16", FALSE, 0xffff, 0xffff, FALSE),
- HOWTO(R_X86_64_PC16,0, 1, 16, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_PC16", FALSE, 0xffff, 0xffff, TRUE),
- HOWTO(R_X86_64_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_8", FALSE, 0xff, 0xff, FALSE),
- HOWTO(R_X86_64_PC8, 0, 0, 8, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_PC8", FALSE, 0xff, 0xff, TRUE),
- HOWTO(R_X86_64_DTPMOD64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_DTPMOD64", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_DTPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_DTPOFF64", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_TPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_TPOFF64", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_TLSGD, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_TLSGD", FALSE, 0xffffffff,
- 0xffffffff, TRUE),
- HOWTO(R_X86_64_TLSLD, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_TLSLD", FALSE, 0xffffffff,
- 0xffffffff, TRUE),
- HOWTO(R_X86_64_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_DTPOFF32", FALSE, 0xffffffff,
- 0xffffffff, FALSE),
- HOWTO(R_X86_64_GOTTPOFF, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOTTPOFF", FALSE, 0xffffffff,
- 0xffffffff, TRUE),
- HOWTO(R_X86_64_TPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_TPOFF32", FALSE, 0xffffffff,
- 0xffffffff, FALSE),
- HOWTO(R_X86_64_PC64, 0, 4, 64, TRUE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_PC64", FALSE, MINUS_ONE, MINUS_ONE,
- TRUE),
- HOWTO(R_X86_64_GOTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_GOTOFF64",
- FALSE, MINUS_ONE, MINUS_ONE, FALSE),
- HOWTO(R_X86_64_GOTPC32, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOTPC32",
- FALSE, 0xffffffff, 0xffffffff, TRUE),
- HOWTO(R_X86_64_GOT64, 0, 4, 64, FALSE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOT64", FALSE, MINUS_ONE, MINUS_ONE,
- FALSE),
- HOWTO(R_X86_64_GOTPCREL64, 0, 4, 64, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOTPCREL64", FALSE, MINUS_ONE,
- MINUS_ONE, TRUE),
- HOWTO(R_X86_64_GOTPC64, 0, 4, 64, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOTPC64",
- FALSE, MINUS_ONE, MINUS_ONE, TRUE),
- HOWTO(R_X86_64_GOTPLT64, 0, 4, 64, FALSE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOTPLT64", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_PLTOFF64, 0, 4, 64, FALSE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_PLTOFF64", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_SIZE32, 0, 2, 32, FALSE, 0, complain_overflow_unsigned,
- bfd_elf_generic_reloc, "R_X86_64_SIZE32", FALSE, 0xffffffff, 0xffffffff,
- FALSE),
- HOWTO(R_X86_64_SIZE64, 0, 4, 64, FALSE, 0, complain_overflow_unsigned,
- bfd_elf_generic_reloc, "R_X86_64_SIZE64", FALSE, MINUS_ONE, MINUS_ONE,
- FALSE),
- HOWTO(R_X86_64_GOTPC32_TLSDESC, 0, 2, 32, TRUE, 0,
+ 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, 0xffffffff, 0xffffffff, TRUE),
- HOWTO(R_X86_64_TLSDESC_CALL, 0, 0, 0, FALSE, 0,
+ "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, 4, 64, FALSE, 0,
+ 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),
+ HOWTO(R_X86_64_CODE_4_GOTPCRELX, 0, 4, 32, true, 0, complain_overflow_signed,
+ bfd_elf_generic_reloc, "R_X86_64_CODE_4_GOTPCRELX", false, 0, 0xffffffff,
+ true),
+ HOWTO(R_X86_64_CODE_4_GOTTPOFF, 0, 4, 32, true, 0, complain_overflow_signed,
+ bfd_elf_generic_reloc, "R_X86_64_CODE_4_GOTTPOFF", false, 0, 0xffffffff,
+ true),
+ HOWTO(R_X86_64_CODE_4_GOTPC32_TLSDESC, 0, 4, 32, true, 0,
+ complain_overflow_bitfield, bfd_elf_generic_reloc,
+ "R_X86_64_CODE_4_GOTPC32_TLSDESC", false, 0, 0xffffffff, true),
+ HOWTO(R_X86_64_CODE_5_GOTPCRELX, 0, 4, 32, true, 0,
+ complain_overflow_signed, bfd_elf_generic_reloc,
+ "R_X86_64_CODE_5_GOTPCRELX", false, 0, 0xffffffff, true),
+ HOWTO(R_X86_64_CODE_5_GOTTPOFF, 0, 4, 32, true, 0,
+ complain_overflow_signed, bfd_elf_generic_reloc,
+ "R_X86_64_CODE_5_GOTTPOFF", false, 0, 0xffffffff, true),
+ HOWTO(R_X86_64_CODE_5_GOTPC32_TLSDESC, 0, 4, 32, true, 0,
complain_overflow_bitfield, bfd_elf_generic_reloc,
- "R_X86_64_TLSDESC",
- 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),
- HOWTO(R_X86_64_RELATIVE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_RELATIVE64", FALSE, MINUS_ONE,
- MINUS_ONE, FALSE),
- HOWTO(R_X86_64_PC32_BND, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_PC32_BND", FALSE, 0xffffffff, 0xffffffff,
- TRUE),
- HOWTO(R_X86_64_PLT32_BND, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_PLT32_BND", FALSE, 0xffffffff, 0xffffffff,
- TRUE),
- HOWTO(R_X86_64_GOTPCRELX, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_GOTPCRELX", FALSE, 0xffffffff,
- 0xffffffff, TRUE),
- HOWTO(R_X86_64_REX_GOTPCRELX, 0, 2, 32, TRUE, 0, complain_overflow_signed,
- bfd_elf_generic_reloc, "R_X86_64_REX_GOTPCRELX", FALSE, 0xffffffff,
- 0xffffffff, TRUE),
+ "R_X86_64_CODE_5_GOTPC32_TLSDESC", false, 0, 0xffffffff, true),
+ HOWTO(R_X86_64_CODE_6_GOTPCRELX, 0, 4, 32, true, 0,
+ complain_overflow_signed, bfd_elf_generic_reloc,
+ "R_X86_64_CODE_6_GOTPCRELX", false, 0, 0xffffffff, true),
+ HOWTO(R_X86_64_CODE_6_GOTTPOFF, 0, 4, 32, true, 0,
+ complain_overflow_signed, bfd_elf_generic_reloc,
+ "R_X86_64_CODE_6_GOTTPOFF", false, 0, 0xffffffff, true),
+ HOWTO(R_X86_64_CODE_6_GOTPC32_TLSDESC, 0, 4, 32, true, 0,
+ complain_overflow_bitfield, bfd_elf_generic_reloc,
+ "R_X86_64_CODE_6_GOTPC32_TLSDESC", 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_standard (R_X86_64_CODE_6_GOTPC32_TLSDESC + 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, 4, 0, FALSE, 0, complain_overflow_dont,
- NULL, "R_X86_64_GNU_VTINHERIT", FALSE, 0, 0, FALSE),
+ 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, 4, 0, FALSE, 0, complain_overflow_dont,
- _bfd_elf_rel_vtable_reloc_fn, "R_X86_64_GNU_VTENTRY", FALSE, 0, 0,
- FALSE),
+ 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, 2, 32, FALSE, 0, complain_overflow_bitfield,
- bfd_elf_generic_reloc, "R_X86_64_32", FALSE, 0xffffffff, 0xffffffff,
- FALSE)
+ 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)
};
-/* Set if a relocation is converted from a GOTPCREL relocation. */
-#define R_X86_64_converted_reloc_bit (1 << 7)
-
-#define X86_PCREL_TYPE_P(TYPE) \
- ( ((TYPE) == R_X86_64_PC8) \
- || ((TYPE) == R_X86_64_PC16) \
- || ((TYPE) == R_X86_64_PC32) \
- || ((TYPE) == R_X86_64_PC32_BND) \
- || ((TYPE) == R_X86_64_PC64))
-
-#define X86_SIZE_TYPE_P(TYPE) \
- ((TYPE) == R_X86_64_SIZE32 || (TYPE) == R_X86_64_SIZE64)
-
/* Map BFD relocs to the x86_64 elf relocs. */
struct elf_reloc_map
{
{ 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_X86_64_CODE_4_GOTPCRELX, R_X86_64_CODE_4_GOTPCRELX, },
+ { BFD_RELOC_X86_64_CODE_4_GOTTPOFF, R_X86_64_CODE_4_GOTTPOFF, },
+ { BFD_RELOC_X86_64_CODE_4_GOTPC32_TLSDESC, R_X86_64_CODE_4_GOTPC32_TLSDESC, },
+ { BFD_RELOC_X86_64_CODE_5_GOTPCRELX, R_X86_64_CODE_5_GOTPCRELX, },
+ { BFD_RELOC_X86_64_CODE_5_GOTTPOFF, R_X86_64_CODE_5_GOTTPOFF, },
+ { BFD_RELOC_X86_64_CODE_5_GOTPC32_TLSDESC, R_X86_64_CODE_5_GOTPC32_TLSDESC, },
+ { BFD_RELOC_X86_64_CODE_6_GOTPCRELX, R_X86_64_CODE_6_GOTPCRELX, },
+ { BFD_RELOC_X86_64_CODE_6_GOTTPOFF, R_X86_64_CODE_6_GOTTPOFF, },
+ { BFD_RELOC_X86_64_CODE_6_GOTPC32_TLSDESC, R_X86_64_CODE_6_GOTPC32_TLSDESC, },
{ BFD_RELOC_VTABLE_INHERIT, R_X86_64_GNU_VTINHERIT, },
{ BFD_RELOC_VTABLE_ENTRY, R_X86_64_GNU_VTENTRY, },
};
/* Given an x86_64 ELF reloc type, fill in an arelent structure. */
-static bfd_boolean
+static bool
elf_x86_64_info_to_howto (bfd *abfd, arelent *cache_ptr,
Elf_Internal_Rela *dst)
{
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;
+ return false;
BFD_ASSERT (r_type == cache_ptr->howto->type || cache_ptr->howto->type == R_X86_64_NONE);
- return TRUE;
+ return true;
}
\f
/* Support for core dump NOTE sections. */
-static bfd_boolean
+static bool
elf_x86_64_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
{
int offset;
switch (note->descsz)
{
default:
- return FALSE;
+ return false;
case 296: /* sizeof(istruct elf_prstatus) on Linux/x32 */
/* pr_cursig */
size, note->descpos + offset);
}
-static bfd_boolean
+static bool
elf_x86_64_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
{
switch (note->descsz)
{
default:
- return FALSE;
+ return false;
- case 124: /* sizeof(struct elf_prpsinfo) on Linux/x32 */
+ 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 + 44, 80);
break;
- case 136: /* sizeof(struct elf_prpsinfo) on Linux/x86_64 */
+ 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
command[n - 1] = '\0';
}
- return TRUE;
+ return true;
}
#ifdef CORE_HEADER
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 =
{
sizeof (elf_x86_64_eh_frame_non_lazy_plt) /* eh_frame_plt_size */
};
-static const struct elf_x86_backend_data elf_x86_64_arch_bed =
- {
- is_normal /* os */
- };
-
-#define elf_backend_arch_data &elf_x86_64_arch_bed
-
-static bfd_boolean
+static bool
elf64_x86_64_elf_object_p (bfd *abfd)
{
/* Set the right machine number for an x86-64 elf64 file. */
bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x86_64);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
elf32_x86_64_elf_object_p (bfd *abfd)
{
/* Set the right machine number for an x86-64 elf32 file. */
bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x64_32);
- return TRUE;
+ return true;
}
/* Return TRUE if the TLS access code sequence support transition
from R_TYPE. */
-static bfd_boolean
+static bool
elf_x86_64_check_tls_transition (bfd *abfd,
struct bfd_link_info *info,
asection *sec,
{
unsigned int val;
unsigned long r_symndx;
- bfd_boolean largepic = FALSE;
+ bool largepic = false;
struct elf_link_hash_entry *h;
bfd_vma offset;
struct elf_x86_link_hash_table *htab;
bfd_byte *call;
- bfd_boolean indirect_call;
+ bool indirect_call;
htab = elf_x86_hash_table (info, X86_64_ELF_DATA);
offset = rel->r_offset;
case R_X86_64_TLSGD:
case R_X86_64_TLSLD:
if ((rel + 1) >= relend)
- return FALSE;
+ return false;
if (r_type == R_X86_64_TLSGD)
{
static const unsigned char leaq[] = { 0x66, 0x48, 0x8d, 0x3d };
if ((offset + 12) > sec->size)
- return FALSE;
+ return false;
call = contents + offset + 4;
if (call[0] != 0x66
|| call[14] != 0xd0
|| !((call[10] == 0x48 && call[12] == 0xd8)
|| (call[10] == 0x4c && call[12] == 0xf8)))
- return FALSE;
- largepic = TRUE;
+ return false;
+ largepic = true;
}
else if (ABI_64_P (abfd))
{
if (offset < 4
|| memcmp (contents + offset - 4, leaq, 4) != 0)
- return FALSE;
+ return false;
}
else
{
if (offset < 3
|| memcmp (contents + offset - 3, leaq + 1, 3) != 0)
- return FALSE;
+ return false;
}
indirect_call = call[2] == 0xff;
}
static const unsigned char lea[] = { 0x48, 0x8d, 0x3d };
if (offset < 3 || (offset + 9) > sec->size)
- return FALSE;
+ return false;
if (memcmp (contents + offset - 3, lea, 3) != 0)
- return FALSE;
+ return false;
call = contents + offset + 4;
if (!(call[0] == 0xe8
|| call[14] != 0xd0
|| !((call[10] == 0x48 && call[12] == 0xd8)
|| (call[10] == 0x4c && call[12] == 0xf8)))
- return FALSE;
- largepic = TRUE;
+ return false;
+ largepic = true;
}
indirect_call = call[0] == 0xff;
}
r_symndx = htab->r_sym (rel[1].r_info);
if (r_symndx < symtab_hdr->sh_info)
- return FALSE;
+ return false;
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
if (h == NULL
|| !((struct elf_x86_link_hash_entry *) h)->tls_get_addr)
- return FALSE;
+ return false;
else
{
r_type = (ELF32_R_TYPE (rel[1].r_info)
if (largepic)
return r_type == R_X86_64_PLTOFF64;
else if (indirect_call)
- return r_type == R_X86_64_GOTPCRELX;
+ return (r_type == R_X86_64_GOTPCRELX || r_type == R_X86_64_GOTPCREL);
else
return (r_type == R_X86_64_PC32 || r_type == R_X86_64_PLT32);
}
+ case R_X86_64_CODE_4_GOTTPOFF:
+ /* Check transition from IE access model:
+ mov foo@gottpoff(%rip), %reg
+ add foo@gottpoff(%rip), %reg
+ where reg is one of r16 to r31. */
+
+ if (offset < 4
+ || (offset + 4) > sec->size
+ || contents[offset - 4] != 0xd5)
+ return false;
+
+ goto check_gottpoff;
+
+ case R_X86_64_CODE_6_GOTTPOFF:
+ /* Check transition from IE access model:
+ add %reg1, foo@gottpoff(%rip), %reg2
+ where reg1/reg2 are one of r16 to r31. */
+
+ if (offset < 6
+ || (offset + 4) > sec->size
+ || contents[offset - 6] != 0x62)
+ return false;
+
+ val = bfd_get_8 (abfd, contents + offset - 2);
+ if (val != 0x01 && val != 0x03)
+ return false;
+
+ val = bfd_get_8 (abfd, contents + offset - 1);
+ return (val & 0xc7) == 5;
+
case R_X86_64_GOTTPOFF:
/* Check transition from IE access model:
mov foo@gottpoff(%rip), %reg
{
/* X32 may have 0x44 REX prefix or no REX prefix. */
if (ABI_64_P (abfd))
- return FALSE;
+ return false;
}
}
else
{
/* X32 may not have any REX prefix. */
if (ABI_64_P (abfd))
- return FALSE;
+ return false;
if (offset < 2 || (offset + 3) > sec->size)
- return FALSE;
+ return false;
}
+ check_gottpoff:
val = bfd_get_8 (abfd, contents + offset - 2);
if (val != 0x8b && val != 0x03)
- return FALSE;
+ return false;
val = bfd_get_8 (abfd, contents + offset - 1);
return (val & 0xc7) == 5;
+ case R_X86_64_CODE_4_GOTPC32_TLSDESC:
+ /* Check transition from GDesc access model:
+ lea x@tlsdesc(%rip), %reg
+ where reg is one of r16 to r31. */
+
+ if (offset < 4
+ || (offset + 4) > sec->size
+ || contents[offset - 4] != 0xd5)
+ return false;
+
+ goto check_tlsdesc;
+
case R_X86_64_GOTPC32_TLSDESC:
/* Check transition from GDesc access model:
leaq x@tlsdesc(%rip), %rax <--- LP64 mode.
going to be rax. */
if (offset < 3 || (offset + 4) > sec->size)
- return FALSE;
+ return false;
val = bfd_get_8 (abfd, contents + offset - 3);
val &= 0xfb;
if (val != 0x48 && (ABI_64_P (abfd) || val != 0x40))
- return FALSE;
+ return false;
+ check_tlsdesc:
if (bfd_get_8 (abfd, contents + offset - 2) != 0x8d)
- return FALSE;
+ return false;
val = bfd_get_8 (abfd, contents + offset - 1);
return (val & 0xc7) == 0x05;
{
prefix = 1;
if (offset + 3 > sec->size)
- return FALSE;
+ return false;
}
}
/* Make sure that it's a call *x@tlsdesc(%rax). */
return call[prefix] == 0xff && call[1 + prefix] == 0x10;
}
- return FALSE;
+ return false;
default:
abort ();
/* Return TRUE if the TLS access transition is OK or no transition
will be performed. Update R_TYPE if there is a transition. */
-static bfd_boolean
+static bool
elf_x86_64_tls_transition (struct bfd_link_info *info, bfd *abfd,
asection *sec, bfd_byte *contents,
Elf_Internal_Shdr *symtab_hdr,
const Elf_Internal_Rela *relend,
struct elf_link_hash_entry *h,
unsigned long r_symndx,
- bfd_boolean from_relocate_section)
+ bool from_relocate_section)
{
unsigned int from_type = *r_type;
unsigned int to_type = from_type;
- bfd_boolean check = TRUE;
+ bool check = true;
/* Skip TLS transition for functions. */
if (h != NULL
&& (h->type == STT_FUNC
|| h->type == STT_GNU_IFUNC))
- return TRUE;
+ return true;
switch (from_type)
{
case R_X86_64_TLSGD:
case R_X86_64_GOTPC32_TLSDESC:
+ case R_X86_64_CODE_4_GOTPC32_TLSDESC:
case R_X86_64_TLSDESC_CALL:
case R_X86_64_GOTTPOFF:
+ case R_X86_64_CODE_4_GOTTPOFF:
+ case R_X86_64_CODE_6_GOTTPOFF:
if (bfd_link_executable (info))
{
if (h == NULL)
if (to_type == R_X86_64_TLSGD
|| to_type == R_X86_64_GOTPC32_TLSDESC
+ || to_type == R_X86_64_CODE_4_GOTPC32_TLSDESC
|| to_type == R_X86_64_TLSDESC_CALL)
{
if (tls_type == GOT_TLS_IE)
}
/* We checked the transition before when we were called from
- elf_x86_64_check_relocs. We only want to check the new
+ elf_x86_64_scan_relocs. We only want to check the new
transition which hasn't been checked before. */
check = new_to_type != to_type && from_type == to_type;
to_type = new_to_type;
break;
default:
- return TRUE;
+ return true;
}
/* Return TRUE if there is no transition. */
- if (from_type == to_type)
- return TRUE;
+ if (from_type == to_type
+ || (from_type == R_X86_64_CODE_4_GOTTPOFF
+ && to_type == R_X86_64_GOTTPOFF)
+ || (from_type == R_X86_64_CODE_6_GOTTPOFF
+ && to_type == R_X86_64_GOTTPOFF))
+ return true;
/* Check if the transition can be performed. */
if (check
to = elf_x86_64_rtype_to_howto (abfd, to_type);
if (from == NULL || to == NULL)
- return FALSE;
+ return false;
if (h)
name = h->root.root.string;
{
Elf_Internal_Sym *isym;
- isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache,
abfd, r_symndx);
name = bfd_elf_sym_name (abfd, symtab_hdr, isym, NULL);
}
" in section `%pA' failed"),
abfd, from->name, to->name, name, (uint64_t) rel->r_offset, sec);
bfd_set_error (bfd_error_bad_value);
- return FALSE;
+ return false;
}
*r_type = to_type;
- return TRUE;
+ return true;
}
-/* Rename some of the generic section flags to better document how they
- are used here. */
-#define check_relocs_failed sec_flg0
-
-static bfd_boolean
+static bool
elf_x86_64_need_pic (struct bfd_link_info *info,
bfd *input_bfd, asection *sec,
struct elf_link_hash_entry *h,
object, pic);
bfd_set_error (bfd_error_bad_value);
sec->check_relocs_failed = 1;
- return FALSE;
+ return false;
}
/* With the local symbol, foo, we convert
where binop is one of adc, add, and, cmp, or, sbb, sub, xor
instructions. */
-static bfd_boolean
+static bool
elf_x86_64_convert_load_reloc (bfd *abfd,
bfd_byte *contents,
unsigned int *r_type_p,
Elf_Internal_Rela *irel,
struct elf_link_hash_entry *h,
- bfd_boolean *converted,
+ bool *converted,
struct bfd_link_info *link_info)
{
struct elf_x86_link_hash_table *htab;
- bfd_boolean is_pic;
- bfd_boolean no_overflow;
- bfd_boolean relocx;
- bfd_boolean to_reloc_pc32;
+ bool is_pic;
+ bool no_overflow;
+ bool relocx;
+ bool to_reloc_pc32;
+ bool abs_symbol;
+ bool local_ref;
asection *tsec;
bfd_signed_vma raddend;
unsigned int opcode;
unsigned int r_type = *r_type_p;
unsigned int r_symndx;
bfd_vma roff = irel->r_offset;
+ bfd_vma abs_relocation;
- if (roff < (r_type == R_X86_64_REX_GOTPCRELX ? 3 : 2))
- return TRUE;
+ if (roff < (r_type == R_X86_64_CODE_4_GOTPCRELX
+ ? 4 : (r_type == R_X86_64_REX_GOTPCRELX ? 3 : 2)))
+ return true;
raddend = irel->r_addend;
/* Addend for 32-bit PC-relative relocation must be -4. */
if (raddend != -4)
- return TRUE;
+ return true;
htab = elf_x86_hash_table (link_info, X86_64_ELF_DATA);
is_pic = bfd_link_pic (link_info);
- relocx = (r_type == R_X86_64_GOTPCRELX
- || r_type == R_X86_64_REX_GOTPCRELX);
+ if (r_type == R_X86_64_CODE_4_GOTPCRELX)
+ {
+ /* Skip if this isn't a REX2 instruction. */
+ opcode = bfd_get_8 (abfd, contents + roff - 4);
+ if (opcode != 0xd5)
+ return true;
+
+ relocx = true;
+ }
+ else
+ relocx = (r_type == R_X86_64_GOTPCRELX
+ || r_type == R_X86_64_REX_GOTPCRELX);
/* TRUE if --no-relax is used. */
no_overflow = link_info->disable_target_specific_optimizations > 1;
/* Convert mov to lea since it has been done for a while. */
if (opcode != 0x8b)
{
- /* Only convert R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX
- for call, jmp or one of adc, add, and, cmp, or, sbb, sub,
- test, xor instructions. */
+ /* Only convert R_X86_64_GOTPCRELX, R_X86_64_REX_GOTPCRELX
+ and R_X86_64_CODE_4_GOTPCRELX for call, jmp or one of adc,
+ add, and, cmp, or, sbb, sub, test, xor instructions. */
if (!relocx)
- return TRUE;
+ return true;
}
/* We convert only to R_X86_64_PC32:
|| no_overflow
|| is_pic);
+ abs_symbol = false;
+ abs_relocation = 0;
+
/* Get the symbol referred to by the reloc. */
if (h == NULL)
{
Elf_Internal_Sym *isym
- = bfd_sym_from_r_symndx (&htab->sym_cache, abfd, r_symndx);
+ = bfd_sym_from_r_symndx (&htab->elf.sym_cache, abfd, r_symndx);
/* Skip relocation against undefined symbols. */
if (isym->st_shndx == SHN_UNDEF)
- return TRUE;
+ return true;
+ local_ref = true;
if (isym->st_shndx == SHN_ABS)
- tsec = bfd_abs_section_ptr;
+ {
+ tsec = bfd_abs_section_ptr;
+ abs_symbol = true;
+ abs_relocation = isym->st_value;
+ }
else if (isym->st_shndx == SHN_COMMON)
tsec = bfd_com_section_ptr;
else if (isym->st_shndx == SHN_X86_64_LCOMMON)
GOTPCRELX relocations since we need to modify REX byte.
It is OK convert mov with R_X86_64_GOTPCREL to
R_X86_64_PC32. */
- bfd_boolean local_ref;
struct elf_x86_link_hash_entry *eh = elf_x86_hash_entry (h);
+ abs_symbol = ABS_SYMBOL_P (h);
+ abs_relocation = h->root.u.def.value;
+
/* NB: Also set linker_def via SYMBOL_REFERENCES_LOCAL_P. */
local_ref = SYMBOL_REFERENCES_LOCAL_P (link_info, h);
if ((relocx || opcode == 0x8b)
/* Skip for branch instructions since R_X86_64_PC32
may overflow. */
if (no_overflow)
- return TRUE;
+ return true;
}
else if (relocx)
{
/* For non-branch instructions, we can convert to
R_X86_64_32/R_X86_64_32S since we know if there
is a REX byte. */
- to_reloc_pc32 = FALSE;
+ to_reloc_pc32 = false;
}
/* Since we don't know the current PC when PIC is true,
we can't convert to R_X86_64_PC32. */
if (to_reloc_pc32 && is_pic)
- return TRUE;
+ return true;
goto convert;
}
{
/* Skip since R_X86_64_32/R_X86_64_32S may overflow. */
if (no_overflow)
- return TRUE;
+ return true;
goto convert;
}
tsec = h->root.u.def.section;
}
else
- return TRUE;
+ return true;
}
/* Don't convert GOTPCREL relocation against large section. */
if (elf_section_data (tsec) != NULL
&& (elf_section_flags (tsec) & SHF_X86_64_LARGE) != 0)
- return TRUE;
+ return true;
/* Skip since R_X86_64_PC32/R_X86_64_32/R_X86_64_32S may overflow. */
if (no_overflow)
- return TRUE;
+ return true;
convert:
if (opcode == 0xff)
}
else
{
- unsigned int rex;
+ unsigned int rex = 0;
unsigned int rex_mask = REX_R;
+ unsigned int rex2 = 0;
+ unsigned int rex2_mask = REX_R | REX_R << 4;
+ bool rex_w = false;
- if (r_type == R_X86_64_REX_GOTPCRELX)
- rex = bfd_get_8 (abfd, contents + roff - 3);
- else
- rex = 0;
+ if (r_type == R_X86_64_CODE_4_GOTPCRELX)
+ {
+ rex2 = bfd_get_8 (abfd, contents + roff - 3);
+ rex_w = (rex2 & REX_W) != 0;
+ }
+ else if (r_type == R_X86_64_REX_GOTPCRELX)
+ {
+ rex = bfd_get_8 (abfd, contents + roff - 3);
+ rex_w = (rex & REX_W) != 0;
+ }
if (opcode == 0x8b)
{
+ if (abs_symbol && local_ref && relocx)
+ to_reloc_pc32 = false;
+
if (to_reloc_pc32)
{
/* Convert "mov foo@GOTPCREL(%rip), %reg" to
opcode = 0xc7;
modrm = bfd_get_8 (abfd, contents + roff - 1);
modrm = 0xc0 | (modrm & 0x38) >> 3;
- if ((rex & REX_W) != 0
- && ABI_64_P (link_info->output_bfd))
+ if (rex_w && ABI_64_P (link_info->output_bfd))
{
/* Keep the REX_W bit in REX byte for LP64. */
r_type = R_X86_64_32S;
use R_X86_64_32 and clear the W bit to avoid
sign-extend imm32 to imm64. */
r_type = R_X86_64_32;
- /* Clear the W bit in REX byte. */
+ /* Clear the W bit in REX byte and REX2 payload. */
rex_mask |= REX_W;
+ rex2_mask |= REX_W;
goto rewrite_modrm_rex;
}
}
{
/* R_X86_64_PC32 isn't supported. */
if (to_reloc_pc32)
- return TRUE;
+ return true;
modrm = bfd_get_8 (abfd, contents + roff - 1);
if (opcode == 0x85)
/* Use R_X86_64_32 with 32-bit operand to avoid relocation
overflow when sign-extending imm32 to imm64. */
- r_type = (rex & REX_W) != 0 ? R_X86_64_32S : R_X86_64_32;
+ r_type = rex_w ? R_X86_64_32S : R_X86_64_32;
rewrite_modrm_rex:
+ if (abs_relocation)
+ {
+ /* Check if R_X86_64_32S/R_X86_64_32 fits. */
+ if (r_type == R_X86_64_32S)
+ {
+ if ((abs_relocation + 0x80000000) > 0xffffffff)
+ return true;
+ }
+ else
+ {
+ if (abs_relocation > 0xffffffff)
+ return true;
+ }
+ }
+
bfd_put_8 (abfd, modrm, contents + roff - 1);
if (rex)
rex = (rex & ~rex_mask) | (rex & REX_R) >> 2;
bfd_put_8 (abfd, rex, contents + roff - 3);
}
+ else if (rex2)
+ {
+ /* Move the R bits to the B bits in REX2 payload byte. */
+ rex2 = ((rex2 & ~rex2_mask)
+ | (rex2 & (REX_R | REX_R << 4)) >> 2);
+ bfd_put_8 (abfd, rex2, contents + roff - 3);
+ }
/* No addend for R_X86_64_32/R_X86_64_32S relocations. */
irel->r_addend = 0;
irel->r_info = htab->r_info (r_symndx,
r_type | R_X86_64_converted_reloc_bit);
- *converted = TRUE;
+ *converted = true;
- return TRUE;
+ return true;
}
/* Look through the relocs for a section during the first phase, and
- calculate needed space in the global offset table, procedure
- linkage table, and dynamic reloc sections. */
+ calculate needed space in the global offset table, and procedure
+ linkage table. */
-static bfd_boolean
-elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
- asection *sec,
- const Elf_Internal_Rela *relocs)
+static bool
+elf_x86_64_scan_relocs (bfd *abfd, struct bfd_link_info *info,
+ asection *sec,
+ const Elf_Internal_Rela *relocs)
{
struct elf_x86_link_hash_table *htab;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
- asection *sreloc;
bfd_byte *contents;
- bfd_boolean converted;
+ bool converted;
if (bfd_link_relocatable (info))
- return TRUE;
-
- /* Don't do anything special with non-loaded, non-alloced sections.
- In particular, any relocs in such sections should not affect GOT
- and PLT reference counting (ie. we don't allow them to create GOT
- or PLT entries), there's no possibility or desire to optimize TLS
- relocs, and there's not much point in propagating relocs to shared
- libs that the dynamic linker won't relocate. */
- if ((sec->flags & SEC_ALLOC) == 0)
- return TRUE;
+ return true;
htab = elf_x86_hash_table (info, X86_64_ELF_DATA);
if (htab == NULL)
{
sec->check_relocs_failed = 1;
- return FALSE;
+ return false;
}
BFD_ASSERT (is_x86_elf (abfd, htab));
/* Get the section contents. */
if (elf_section_data (sec)->this_hdr.contents != NULL)
contents = elf_section_data (sec)->this_hdr.contents;
- else if (!bfd_malloc_and_get_section (abfd, sec, &contents))
+ else if (!_bfd_elf_mmap_section_contents (abfd, sec, &contents))
{
sec->check_relocs_failed = 1;
- return FALSE;
+ return false;
}
symtab_hdr = &elf_symtab_hdr (abfd);
sym_hashes = elf_sym_hashes (abfd);
- converted = FALSE;
-
- sreloc = NULL;
+ converted = false;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
struct elf_x86_link_hash_entry *eh;
Elf_Internal_Sym *isym;
const char *name;
- bfd_boolean size_reloc;
- bfd_boolean converted_reloc;
+ bool size_reloc;
+ bool converted_reloc;
+ bool no_dynreloc;
r_symndx = htab->r_sym (rel->r_info);
r_type = ELF32_R_TYPE (rel->r_info);
+ /* Don't check R_X86_64_NONE. */
+ if (r_type == R_X86_64_NONE)
+ continue;
+
if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
{
/* xgettext:c-format */
if (r_symndx < symtab_hdr->sh_info)
{
/* A local symbol. */
- isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache,
abfd, r_symndx);
if (isym == NULL)
goto error_return;
if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
{
h = _bfd_elf_x86_get_local_sym_hash (htab, abfd, rel,
- TRUE);
+ true);
if (h == NULL)
goto error_return;
break;
}
+ eh = (struct elf_x86_link_hash_entry *) h;
+
if (h != NULL)
{
/* It is referenced by a non-shared object. */
h->ref_regular = 1;
}
- converted_reloc = FALSE;
+ converted_reloc = false;
if ((r_type == R_X86_64_GOTPCREL
|| r_type == R_X86_64_GOTPCRELX
- || r_type == R_X86_64_REX_GOTPCRELX)
+ || r_type == R_X86_64_REX_GOTPCRELX
+ || r_type == R_X86_64_CODE_4_GOTPCRELX)
&& (h == NULL || h->type != STT_GNU_IFUNC))
{
Elf_Internal_Rela *irel = (Elf_Internal_Rela *) rel;
goto error_return;
if (converted_reloc)
- converted = TRUE;
+ converted = true;
}
+ if (!_bfd_elf_x86_valid_reloc_p (sec, info, htab, rel, h, isym,
+ symtab_hdr, &no_dynreloc))
+ return false;
+
if (! elf_x86_64_tls_transition (info, abfd, sec, contents,
symtab_hdr, sym_hashes,
&r_type, GOT_UNKNOWN,
- rel, rel_end, h, r_symndx, FALSE))
+ rel, rel_end, h, r_symndx, false))
goto error_return;
/* Check if _GLOBAL_OFFSET_TABLE_ is referenced. */
if (h == htab->elf.hgot)
- htab->got_referenced = TRUE;
+ htab->got_referenced = true;
- eh = (struct elf_x86_link_hash_entry *) h;
switch (r_type)
{
case R_X86_64_TLSLD:
break;
case R_X86_64_GOTTPOFF:
+ case R_X86_64_CODE_4_GOTTPOFF:
+ case R_X86_64_CODE_6_GOTTPOFF:
if (!bfd_link_executable (info))
info->flags |= DF_STATIC_TLS;
/* Fall through */
case R_X86_64_GOTPCREL:
case R_X86_64_GOTPCRELX:
case R_X86_64_REX_GOTPCRELX:
+ case R_X86_64_CODE_4_GOTPCRELX:
case R_X86_64_TLSGD:
case R_X86_64_GOT64:
case R_X86_64_GOTPCREL64:
case R_X86_64_GOTPLT64:
case R_X86_64_GOTPC32_TLSDESC:
+ case R_X86_64_CODE_4_GOTPC32_TLSDESC:
case R_X86_64_TLSDESC_CALL:
/* This symbol requires a global offset table entry. */
{
switch (r_type)
{
- default: tls_type = GOT_NORMAL; break;
- case R_X86_64_TLSGD: tls_type = GOT_TLS_GD; break;
- case R_X86_64_GOTTPOFF: tls_type = GOT_TLS_IE; break;
+ default:
+ tls_type = GOT_NORMAL;
+ if (h)
+ {
+ if (ABS_SYMBOL_P (h))
+ tls_type = GOT_ABS;
+ }
+ else if (isym->st_shndx == SHN_ABS)
+ tls_type = GOT_ABS;
+ break;
+ case R_X86_64_TLSGD:
+ tls_type = GOT_TLS_GD;
+ break;
+ case R_X86_64_GOTTPOFF:
+ case R_X86_64_CODE_4_GOTTPOFF:
+ case R_X86_64_CODE_6_GOTTPOFF:
+ tls_type = GOT_TLS_IE;
+ break;
case R_X86_64_GOTPC32_TLSDESC:
+ case R_X86_64_CODE_4_GOTPC32_TLSDESC:
case R_X86_64_TLSDESC_CALL:
- tls_type = GOT_TLS_GDESC; break;
+ tls_type = GOT_TLS_GDESC;
+ break;
}
if (h != NULL)
{
bfd_signed_vma *local_got_refcounts;
+ if (!elf_x86_allocate_local_got_info (abfd,
+ symtab_hdr->sh_info))
+ goto error_return;
+
/* This is a global offset table entry for a local symbol. */
local_got_refcounts = elf_local_got_refcounts (abfd);
- if (local_got_refcounts == NULL)
- {
- bfd_size_type size;
-
- size = symtab_hdr->sh_info;
- size *= sizeof (bfd_signed_vma)
- + sizeof (bfd_vma) + sizeof (char);
- local_got_refcounts = ((bfd_signed_vma *)
- bfd_zalloc (abfd, size));
- if (local_got_refcounts == NULL)
- goto error_return;
- elf_local_got_refcounts (abfd) = local_got_refcounts;
- elf_x86_local_tlsdesc_gotent (abfd)
- = (bfd_vma *) (local_got_refcounts + symtab_hdr->sh_info);
- elf_x86_local_got_tls_type (abfd)
- = (char *) (local_got_refcounts + 2 * symtab_hdr->sh_info);
- }
local_got_refcounts[r_symndx] = 1;
old_tls_type
= elf_x86_local_got_tls_type (abfd) [r_symndx];
break;
case R_X86_64_PLT32:
- case R_X86_64_PLT32_BND:
/* This symbol requires a procedure linkage table entry. We
actually build the entry in adjust_dynamic_symbol,
because this might be a case of linking PIC code which is
case R_X86_64_SIZE32:
case R_X86_64_SIZE64:
- size_reloc = TRUE;
+ size_reloc = true;
goto do_size;
case R_X86_64_32:
case R_X86_64_PC8:
case R_X86_64_PC16:
case R_X86_64_PC32:
- case R_X86_64_PC32_BND:
case R_X86_64_PC64:
case R_X86_64_64:
pointer:
&& (bfd_link_executable (info)
|| h->type == STT_GNU_IFUNC))
{
- bfd_boolean func_pointer_ref = FALSE;
+ bool func_pointer_ref = false;
if (r_type == R_X86_64_PC32)
{
}
}
}
- else if (r_type != R_X86_64_PC32_BND
- && r_type != R_X86_64_PC64)
+ else if (r_type != R_X86_64_PC64)
{
- h->pointer_equality_needed = 1;
/* At run-time, R_X86_64_64 can be resolved for both
x86-64 and x32. But R_X86_64_32 and R_X86_64_32S
- can only be resolved for x32. */
+ can only be resolved for x32. Function pointer
+ reference doesn't need PLT for pointer equality. */
if ((sec->flags & SEC_READONLY) == 0
&& (r_type == R_X86_64_64
|| (!ABI_64_P (abfd)
&& (r_type == R_X86_64_32
|| r_type == R_X86_64_32S))))
- func_pointer_ref = TRUE;
+ func_pointer_ref = true;
+
+ /* IFUNC symbol needs pointer equality in PDE so that
+ function pointer reference will be resolved to its
+ PLT entry directly. */
+ if (!func_pointer_ref
+ || (bfd_link_pde (info)
+ && h->type == STT_GNU_IFUNC))
+ h->pointer_equality_needed = 1;
}
if (!func_pointer_ref)
adjust_dynamic_symbol. */
h->non_got_ref = 1;
+ if (!elf_has_indirect_extern_access (sec->owner))
+ eh->non_got_ref_without_indirect_extern_access = 1;
+
/* We may need a .plt entry if the symbol is a function
defined in a shared lib or is a function referenced
from the code or read-only section. */
if (!h->def_regular
|| (sec->flags & (SEC_CODE | SEC_READONLY)) != 0)
h->plt.refcount = 1;
+
+ if (htab->elf.target_os != is_solaris
+ && h->pointer_equality_needed
+ && h->type == STT_FUNC
+ && eh->def_protected
+ && !SYMBOL_DEFINED_NON_SHARED_P (h)
+ && h->def_dynamic)
+ {
+ /* Disallow non-canonical reference to canonical
+ protected function. */
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: non-canonical reference to canonical "
+ "protected function `%s' in %pB"),
+ abfd, h->root.root.string,
+ h->root.u.def.section->owner);
+ bfd_set_error (bfd_error_bad_value);
+ goto error_return;
+ }
}
}
- size_reloc = FALSE;
+ size_reloc = false;
do_size:
- if (NEED_DYNAMIC_RELOCATION_P (info, TRUE, h, sec, r_type,
- htab->pointer_r_type))
+ if (!no_dynreloc
+ && NEED_DYNAMIC_RELOCATION_P (true, info, true, h, sec,
+ r_type,
+ htab->pointer_r_type))
{
struct elf_dyn_relocs *p;
struct elf_dyn_relocs **head;
- /* We must copy these reloc types into the output file.
- Create a reloc section in dynobj and make room for
- this reloc. */
- if (sreloc == NULL)
- {
- sreloc = _bfd_elf_make_dynamic_reloc_section
- (sec, htab->elf.dynobj, ABI_64_P (abfd) ? 3 : 2,
- abfd, /*rela?*/ TRUE);
-
- if (sreloc == NULL)
- goto error_return;
- }
-
/* If this is a global symbol, we count the number of
relocations we need for this symbol. */
if (h != NULL)
- head = &eh->dyn_relocs;
+ head = &h->dyn_relocs;
else
{
/* Track dynamic relocs needed for local syms too.
asection *s;
void **vpp;
- isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache,
abfd, r_symndx);
if (isym == NULL)
goto error_return;
p->count += 1;
/* Count size relocation as PC-relative relocation. */
- if (X86_PCREL_TYPE_P (r_type) || size_reloc)
+ if (X86_PCREL_TYPE_P (true, r_type) || size_reloc)
p->pc_count += 1;
}
break;
+ case R_X86_64_CODE_5_GOTPCRELX:
+ case R_X86_64_CODE_5_GOTTPOFF:
+ case R_X86_64_CODE_5_GOTPC32_TLSDESC:
+ case R_X86_64_CODE_6_GOTPCRELX:
+ case R_X86_64_CODE_6_GOTPC32_TLSDESC:
+ {
+ /* These relocations are added only for completeness and
+ aren't be used. */
+ if (h)
+ name = h->root.root.string;
+ else
+ name = bfd_elf_sym_name (abfd, symtab_hdr, isym,
+ NULL);
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: unsupported relocation %s against symbol `%s'"),
+ abfd, x86_64_elf_howto_table[r_type].name, name);
+ }
+ break;
+
/* This relocation describes the C++ object vtable hierarchy.
Reconstruct it for later use during GC. */
case R_X86_64_GNU_VTINHERIT:
if (elf_section_data (sec)->this_hdr.contents != contents)
{
- if (!converted && !info->keep_memory)
- free (contents);
+ if (!converted)
+ _bfd_elf_munmap_section_contents (sec, contents);
else
{
/* Cache the section contents for elf_link_input_bfd if any
load is converted or --no-keep-memory isn't used. */
elf_section_data (sec)->this_hdr.contents = contents;
+ info->cache_size += sec->size;
}
}
if (elf_section_data (sec)->relocs != relocs && converted)
elf_section_data (sec)->relocs = (Elf_Internal_Rela *) relocs;
- return TRUE;
+ return true;
error_return:
if (elf_section_data (sec)->this_hdr.contents != contents)
- free (contents);
+ _bfd_elf_munmap_section_contents (sec, contents);
sec->check_relocs_failed = 1;
- return FALSE;
+ return false;
+}
+
+static bool
+elf_x86_64_early_size_sections (bfd *output_bfd, struct bfd_link_info *info)
+{
+ bfd *abfd;
+
+ /* Scan relocations after rel_from_abs has been set on __ehdr_start. */
+ for (abfd = info->input_bfds;
+ abfd != (bfd *) NULL;
+ abfd = abfd->link.next)
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
+ && !_bfd_elf_link_iterate_on_relocs (abfd, info,
+ elf_x86_64_scan_relocs))
+ return false;
+
+ return _bfd_x86_elf_early_size_sections (output_bfd, info);
}
/* Return the relocation value for @tpoff relocation
/* Relocate an x86_64 ELF section. */
-static bfd_boolean
+static int
elf_x86_64_relocate_section (bfd *output_bfd,
struct bfd_link_info *info,
bfd *input_bfd,
Elf_Internal_Rela *wrel;
Elf_Internal_Rela *relend;
unsigned int plt_entry_size;
+ bool status;
- /* Skip if check_relocs failed. */
+ /* Skip if check_relocs or scan_relocs failed. */
if (input_section->check_relocs_failed)
- return FALSE;
+ return false;
htab = elf_x86_hash_table (info, X86_64_ELF_DATA);
if (htab == NULL)
- return FALSE;
+ return false;
if (!is_x86_elf (input_bfd, htab))
{
bfd_set_error (bfd_error_wrong_format);
- return FALSE;
+ return false;
}
plt_entry_size = htab->plt.plt_entry_size;
_bfd_x86_elf_set_tls_module_base (info);
+ status = true;
rel = wrel = relocs;
relend = relocs + input_section->reloc_count;
for (; rel < relend; wrel++, rel++)
asection *sec;
bfd_vma off, offplt, plt_offset;
bfd_vma relocation;
- bfd_boolean unresolved_reloc;
+ bool unresolved_reloc;
bfd_reloc_status_type r;
int tls_type;
asection *base_got, *resolved_plt;
bfd_vma st_size;
- bfd_boolean resolved_to_zero;
- bfd_boolean relative_reloc;
- bfd_boolean converted_reloc;
- bfd_boolean need_copy_reloc_in_pie;
- bfd_boolean no_copyreloc_p;
+ bool resolved_to_zero;
+ bool relative_reloc;
+ bool converted_reloc;
+ bool need_copy_reloc_in_pie;
+ bool no_copyreloc_p;
r_type = ELF32_R_TYPE (rel->r_info);
if (r_type == (int) R_X86_64_GNU_VTINHERIT
h = NULL;
sym = NULL;
sec = NULL;
- unresolved_reloc = FALSE;
+ unresolved_reloc = false;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
&& ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
{
h = _bfd_elf_x86_get_local_sym_hash (htab, input_bfd,
- rel, FALSE);
+ rel, false);
if (h == NULL)
abort ();
}
else
{
- bfd_boolean warned ATTRIBUTE_UNUSED;
- bfd_boolean ignored ATTRIBUTE_UNUSED;
+ bool warned ATTRIBUTE_UNUSED;
+ bool ignored ATTRIBUTE_UNUSED;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
case R_X86_64_GOTPCREL:
case R_X86_64_GOTPCRELX:
case R_X86_64_REX_GOTPCRELX:
+ case R_X86_64_CODE_4_GOTPCRELX:
case R_X86_64_GOTPCREL64:
base_got = htab->elf.sgot;
off = h->got.offset;
"symbol `%s' isn't supported"), input_bfd,
howto->name, name);
bfd_set_error (bfd_error_bad_value);
- return FALSE;
+ return false;
case R_X86_64_32S:
if (bfd_link_pic (info))
"symbol `%s' has non-zero addend: %" PRId64),
input_bfd, howto->name, name, (int64_t) rel->r_addend);
bfd_set_error (bfd_error_bad_value);
- return FALSE;
+ return false;
}
/* Generate dynamic relcoation only when there is a
outrel.r_addend = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
+
+ if (htab->params->report_relative_reloc)
+ _bfd_x86_elf_link_report_relative_reloc
+ (info, input_section, h, sym,
+ "R_X86_64_IRELATIVE", &outrel);
}
else
{
}
/* FALLTHROUGH */
case R_X86_64_PC32:
- case R_X86_64_PC32_BND:
case R_X86_64_PC64:
case R_X86_64_PLT32:
- case R_X86_64_PLT32_BND:
goto do_relocation;
}
}
case R_X86_64_GOTPCREL:
case R_X86_64_GOTPCRELX:
case R_X86_64_REX_GOTPCRELX:
+ case R_X86_64_CODE_4_GOTPCRELX:
case R_X86_64_GOTPCREL64:
/* Use global offset table entry as symbol value. */
case R_X86_64_GOTPLT64:
if (htab->elf.sgot == NULL)
abort ();
- relative_reloc = FALSE;
+ relative_reloc = false;
if (h != NULL)
{
off = h->got.offset;
as -1 | 1 still is -1. */
h->got.offset |= 1;
- if (GENERATE_RELATIVE_RELOC_P (info, h))
+ /* NB: Don't generate relative relocation here if
+ it has been generated by DT_RELR. */
+ if (!info->enable_dt_relr
+ && GENERATE_RELATIVE_RELOC_P (info, h))
{
/* If this symbol isn't dynamic in PIC,
generate R_X86_64_RELATIVE here. */
eh->no_finish_dynamic_symbol = 1;
- relative_reloc = TRUE;
+ relative_reloc = true;
}
}
}
else
- unresolved_reloc = FALSE;
+ unresolved_reloc = false;
}
else
{
base_got->contents + off);
local_got_offsets[r_symndx] |= 1;
- if (bfd_link_pic (info))
- relative_reloc = TRUE;
+ /* NB: GOTPCREL relocations against local absolute
+ symbol store relocation value in the GOT slot
+ without relative relocation. Don't generate
+ relative relocation here if it has been generated
+ by DT_RELR. */
+ if (!info->enable_dt_relr
+ && bfd_link_pic (info)
+ && !(sym->st_shndx == SHN_ABS
+ && (r_type == R_X86_64_GOTPCREL
+ || r_type == R_X86_64_GOTPCRELX
+ || r_type == R_X86_64_REX_GOTPCRELX
+ || r_type == R_X86_64_CODE_4_GOTPCRELX)))
+ relative_reloc = true;
}
}
+ off);
outrel.r_info = htab->r_info (0, R_X86_64_RELATIVE);
outrel.r_addend = relocation;
+
+ if (htab->params->report_relative_reloc)
+ _bfd_x86_elf_link_report_relative_reloc
+ (info, input_section, h, sym, "R_X86_64_RELATIVE",
+ &outrel);
+
elf_append_rela (output_bfd, s, &outrel);
}
if (r_type != R_X86_64_GOTPCREL
&& r_type != R_X86_64_GOTPCRELX
&& r_type != R_X86_64_REX_GOTPCRELX
+ && r_type != R_X86_64_CODE_4_GOTPCRELX
&& r_type != R_X86_64_GOTPCREL64)
relocation -= htab->elf.sgotplt->output_section->vma
- htab->elf.sgotplt->output_offset;
" `%s' can not be used when making a shared object"),
input_bfd, v, h->root.root.string);
bfd_set_error (bfd_error_bad_value);
- return FALSE;
+ return false;
}
else if (!bfd_link_executable (info)
&& !SYMBOL_REFERENCES_LOCAL_P (info, h)
h->type == STT_FUNC ? "function" : "data",
h->root.root.string);
bfd_set_error (bfd_error_bad_value);
- return FALSE;
+ return false;
}
}
/* Use global offset table as symbol value. */
relocation = htab->elf.sgotplt->output_section->vma
+ htab->elf.sgotplt->output_offset;
- unresolved_reloc = FALSE;
+ unresolved_reloc = false;
break;
case R_X86_64_PLTOFF64:
relocation = (resolved_plt->output_section->vma
+ resolved_plt->output_offset
+ plt_offset);
- unresolved_reloc = FALSE;
+ unresolved_reloc = false;
}
relocation -= htab->elf.sgotplt->output_section->vma
break;
case R_X86_64_PLT32:
- case R_X86_64_PLT32_BND:
/* Relocation is to the entry for this symbol in the
procedure linkage table. */
relocation = (resolved_plt->output_section->vma
+ resolved_plt->output_offset
+ plt_offset);
- unresolved_reloc = FALSE;
+ unresolved_reloc = false;
break;
case R_X86_64_SIZE32:
case R_X86_64_PC8:
case R_X86_64_PC16:
case R_X86_64_PC32:
- case R_X86_64_PC32_BND:
/* Don't complain about -fPIC if the symbol is undefined when
building executable unless it is unresolved weak symbol,
references a dynamic definition in PIE or -z nocopyreloc
|| (h != NULL
&& !h->root.linker_def
&& !h->root.ldscript_def
- && eh->def_protected
- && elf_has_no_copy_on_protected (h->root.u.def.section->owner)));
+ && eh->def_protected));
if ((input_section->flags & SEC_ALLOC) != 0
&& (input_section->flags & SEC_READONLY) != 0
|| (no_copyreloc_p
&& h->def_dynamic
&& !(h->root.u.def.section->flags & SEC_CODE))))
+ || (bfd_link_pie (info)
+ && h->root.type == bfd_link_hash_undefweak)
|| bfd_link_dll (info)))
{
- bfd_boolean fail = FALSE;
+ bool fail = false;
if (SYMBOL_REFERENCES_LOCAL_P (info, h))
{
/* Symbol is referenced locally. Make sure it is
{
/* We can only use PC-relative relocations in PIE
from non-code sections. */
- if (h->type == STT_FUNC
- && (sec->flags & SEC_CODE) != 0)
- fail = TRUE;
+ if (h->root.type == bfd_link_hash_undefweak
+ || (h->type == STT_FUNC
+ && (sec->flags & SEC_CODE) != 0))
+ fail = true;
}
else if (no_copyreloc_p || bfd_link_dll (info))
{
|| eh->needs_copy
|| (h->root.type
== bfd_link_hash_undefined))
- && (X86_PCREL_TYPE_P (r_type)
- || X86_SIZE_TYPE_P (r_type)));
+ && (X86_PCREL_TYPE_P (true, r_type)
+ || X86_SIZE_TYPE_P (true,
+ r_type)));
- if (GENERATE_DYNAMIC_RELOCATION_P (info, eh, r_type,
+ if (GENERATE_DYNAMIC_RELOCATION_P (true, info, eh, r_type, sec,
need_copy_reloc_in_pie,
- resolved_to_zero, FALSE))
+ resolved_to_zero, false))
{
Elf_Internal_Rela outrel;
- bfd_boolean skip, relocate;
+ bool skip, relocate;
+ bool generate_dynamic_reloc = true;
asection *sreloc;
+ const char *relative_reloc_name = NULL;
/* When generating a shared object, these relocations
are copied into the output file to be resolved at run
time. */
- skip = FALSE;
- relocate = FALSE;
+ skip = false;
+ relocate = false;
outrel.r_offset =
_bfd_elf_section_offset (output_bfd, info, input_section,
rel->r_offset);
if (outrel.r_offset == (bfd_vma) -1)
- skip = TRUE;
+ skip = true;
else if (outrel.r_offset == (bfd_vma) -2)
- skip = TRUE, relocate = TRUE;
+ skip = true, relocate = true;
outrel.r_offset += (input_section->output_section->vma
+ input_section->output_offset);
if (skip)
memset (&outrel, 0, sizeof outrel);
- else if (COPY_INPUT_RELOC_P (info, h, r_type))
+ else if (COPY_INPUT_RELOC_P (true, info, h, r_type))
{
outrel.r_info = htab->r_info (h->dynindx, r_type);
outrel.r_addend = rel->r_addend;
|| (r_type == R_X86_64_32
&& htab->params->no_reloc_overflow_check))
{
- relocate = TRUE;
- outrel.r_info = htab->r_info (0, R_X86_64_RELATIVE);
- outrel.r_addend = relocation + rel->r_addend;
+ relocate = true;
+ /* NB: Don't generate relative relocation here if
+ it has been generated by DT_RELR. */
+ if (info->enable_dt_relr)
+ generate_dynamic_reloc = false;
+ else
+ {
+ outrel.r_info =
+ htab->r_info (0, R_X86_64_RELATIVE);
+ outrel.r_addend = relocation + rel->r_addend;
+ relative_reloc_name = "R_X86_64_RELATIVE";
+ }
}
else if (r_type == R_X86_64_64
&& !ABI_64_P (output_bfd))
{
- relocate = TRUE;
+ relocate = true;
outrel.r_info = htab->r_info (0,
R_X86_64_RELATIVE64);
outrel.r_addend = relocation + rel->r_addend;
+ relative_reloc_name = "R_X86_64_RELATIVE64";
/* Check addend overflow. */
if ((outrel.r_addend & 0x80000000)
!= (rel->r_addend & 0x80000000))
howto->name, name, (uint64_t) rel->r_offset,
input_section);
bfd_set_error (bfd_error_bad_value);
- return FALSE;
+ return false;
}
}
else
else if (sec == NULL || sec->owner == NULL)
{
bfd_set_error (bfd_error_bad_value);
- return FALSE;
+ return false;
}
else
{
}
}
- sreloc = elf_section_data (input_section)->sreloc;
-
- if (sreloc == NULL || sreloc->contents == NULL)
+ if (generate_dynamic_reloc)
{
- r = bfd_reloc_notsupported;
- goto check_relocation_error;
- }
+ sreloc = elf_section_data (input_section)->sreloc;
- elf_append_rela (output_bfd, sreloc, &outrel);
+ if (sreloc == NULL || sreloc->contents == NULL)
+ {
+ r = bfd_reloc_notsupported;
+ goto check_relocation_error;
+ }
+
+ if (relative_reloc_name
+ && htab->params->report_relative_reloc)
+ _bfd_x86_elf_link_report_relative_reloc
+ (info, input_section, h, sym,
+ relative_reloc_name, &outrel);
+
+ elf_append_rela (output_bfd, sreloc, &outrel);
+ }
/* If this reloc is against an external symbol, we do
not want to fiddle with the addend. Otherwise, we
case R_X86_64_TLSGD:
case R_X86_64_GOTPC32_TLSDESC:
+ case R_X86_64_CODE_4_GOTPC32_TLSDESC:
case R_X86_64_TLSDESC_CALL:
case R_X86_64_GOTTPOFF:
+ case R_X86_64_CODE_4_GOTTPOFF:
+ case R_X86_64_CODE_6_GOTTPOFF:
tls_type = GOT_UNKNOWN;
if (h == NULL && local_got_offsets)
tls_type = elf_x86_local_got_tls_type (input_bfd) [r_symndx];
input_section, contents,
symtab_hdr, sym_hashes,
&r_type_tls, tls_type, rel,
- relend, h, r_symndx, TRUE))
- return FALSE;
+ relend, h, r_symndx, true))
+ return false;
if (r_type_tls == R_X86_64_TPOFF32)
{
bfd_vma roff = rel->r_offset;
+ if (roff >= input_section->size)
+ goto corrupt_input;
+
BFD_ASSERT (! unresolved_reloc);
if (r_type == R_X86_64_TLSGD)
int largepic = 0;
if (ABI_64_P (output_bfd))
{
+ if (roff + 5 >= input_section->size)
+ goto corrupt_input;
if (contents[roff + 5] == 0xb8)
{
if (roff < 3
info->callbacks->einfo
(_("%F%P: corrupt input: %pB\n"),
input_bfd);
- return FALSE;
+ return false;
}
memcpy (contents + roff - 3,
"\x64\x48\x8b\x04\x25\0\0\0\0\x48\x8d\x80"
"\x64\x8b\x04\x25\0\0\0\0\x48\x8d\x80\0\0\0",
15);
}
+
+ if (roff + 8 + largepic >= input_section->size)
+ goto corrupt_input;
+
bfd_put_32 (output_bfd,
elf_x86_64_tpoff (info, relocation),
contents + roff + 8 + largepic);
contents + roff);
continue;
}
+ else if (r_type == R_X86_64_CODE_4_GOTPC32_TLSDESC)
+ {
+ /* GDesc -> LE transition.
+ It's originally something like:
+ lea x@tlsdesc(%rip), %reg
+
+ Change it to:
+ mov $x@tpoff, %reg
+ where reg is one of r16 to r31. */
+
+ unsigned int val, rex2;
+ unsigned int rex2_mask = REX_R | REX_R << 4;
+
+ if (roff < 4)
+ goto corrupt_input;
+ rex2 = bfd_get_8 (input_bfd, contents + roff - 3);
+ val = bfd_get_8 (input_bfd, contents + roff - 1);
+ /* Move the R bits to the B bits in REX2 payload
+ byte. */
+ bfd_put_8 (output_bfd,
+ ((rex2 & ~rex2_mask)
+ | (rex2 & rex2_mask) >> 2),
+ contents + roff - 3);
+ bfd_put_8 (output_bfd, 0xc7, contents + roff - 2);
+ bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7),
+ contents + roff - 1);
+ bfd_put_32 (output_bfd,
+ elf_x86_64_tpoff (info, relocation),
+ contents + roff);
+ continue;
+ }
else if (r_type == R_X86_64_TLSDESC_CALL)
{
/* GDesc -> LE transition.
}
if (prefix)
{
+ if (roff + 2 >= input_section->size)
+ goto corrupt_input;
+
bfd_put_8 (output_bfd, 0x0f, contents + roff);
bfd_put_8 (output_bfd, 0x1f, contents + roff + 1);
bfd_put_8 (output_bfd, 0x00, contents + roff + 2);
}
else
{
+ if (roff + 1 >= input_section->size)
+ goto corrupt_input;
+
bfd_put_8 (output_bfd, 0x66, contents + roff);
bfd_put_8 (output_bfd, 0x90, contents + roff + 1);
}
contents + roff);
continue;
}
+ else if (r_type == R_X86_64_CODE_4_GOTTPOFF)
+ {
+ /* IE->LE transition:
+ Originally it can be one of:
+ mov foo@gottpoff(%rip), %reg
+ add foo@gottpoff(%rip), %reg
+ We change it into:
+ mov $foo@tpoff, %reg
+ add $foo@tpoff, %reg
+ where reg is one of r16 to r31. */
+
+ unsigned int rex2, type, reg;
+ unsigned int rex2_mask = REX_R | REX_R << 4;
+
+ if (roff < 4)
+ goto corrupt_input;
+
+ rex2 = bfd_get_8 (input_bfd, contents + roff - 3);
+ type = bfd_get_8 (input_bfd, contents + roff - 2);
+ reg = bfd_get_8 (input_bfd, contents + roff - 1);
+ reg >>= 3;
+ /* Move the R bits to the B bits in REX2 payload
+ byte. */
+ if (type == 0x8b)
+ type = 0xc7;
+ else
+ type = 0x81;
+ bfd_put_8 (output_bfd,
+ ((rex2 & ~rex2_mask)
+ | (rex2 & rex2_mask) >> 2),
+ contents + roff - 3);
+ bfd_put_8 (output_bfd, type,
+ contents + roff - 2);
+ bfd_put_8 (output_bfd, 0xc0 | reg,
+ contents + roff - 1);
+ bfd_put_32 (output_bfd,
+ elf_x86_64_tpoff (info, relocation),
+ contents + roff);
+ continue;
+ }
+ else if (r_type == R_X86_64_CODE_6_GOTTPOFF)
+ {
+ /* IE->LE transition:
+ Originally it is
+ add %reg1, foo@gottpoff(%rip), %reg2
+ or
+ add foo@gottpoff(%rip), %reg1, %reg2
+ We change it into:
+ add $foo@tpoff, %reg1, %reg2
+ */
+ unsigned int reg, byte1;
+ unsigned int updated_byte1;
+
+ if (roff < 6)
+ goto corrupt_input;
+
+ /* Move the R bits to the B bits in EVEX payload
+ byte 1. */
+ byte1 = bfd_get_8 (input_bfd, contents + roff - 5);
+ updated_byte1 = byte1;
+
+ /* Set the R bits since they is inverted. */
+ updated_byte1 |= 1 << 7 | 1 << 4;
+
+ /* Update the B bits from the R bits. */
+ if ((byte1 & (1 << 7)) == 0)
+ updated_byte1 &= ~(1 << 5);
+ if ((byte1 & (1 << 4)) == 0)
+ updated_byte1 |= 1 << 3;
+
+ reg = bfd_get_8 (input_bfd, contents + roff - 1);
+ reg >>= 3;
+
+ bfd_put_8 (output_bfd, updated_byte1,
+ contents + roff - 5);
+ bfd_put_8 (output_bfd, 0x81,
+ contents + roff - 2);
+ bfd_put_8 (output_bfd, 0xc0 | reg,
+ contents + roff - 1);
+ bfd_put_32 (output_bfd,
+ elf_x86_64_tpoff (info, relocation),
+ contents + roff);
+ continue;
+ }
else
- BFD_ASSERT (FALSE);
+ BFD_ASSERT (false);
}
if (htab->elf.sgot == NULL)
if (r_type_tls == r_type)
{
if (r_type == R_X86_64_GOTPC32_TLSDESC
+ || r_type == R_X86_64_CODE_4_GOTPC32_TLSDESC
|| r_type == R_X86_64_TLSDESC_CALL)
relocation = htab->elf.sgotplt->output_section->vma
+ htab->elf.sgotplt->output_offset
else
relocation = htab->elf.sgot->output_section->vma
+ htab->elf.sgot->output_offset + off;
- unresolved_reloc = FALSE;
+ unresolved_reloc = false;
}
else
{
wrel++;
continue;
}
- else if (r_type == R_X86_64_GOTPC32_TLSDESC)
+ else if (r_type == R_X86_64_GOTPC32_TLSDESC
+ || r_type == R_X86_64_CODE_4_GOTPC32_TLSDESC)
{
/* GDesc -> IE transition.
It's originally something like:
continue;
}
else
- BFD_ASSERT (FALSE);
+ BFD_ASSERT (false);
}
break;
input_section, contents,
symtab_hdr, sym_hashes,
&r_type, GOT_UNKNOWN, rel,
- relend, h, r_symndx, TRUE))
- return FALSE;
+ relend, h, r_symndx, true))
+ return false;
if (r_type != R_X86_64_TLSLD)
{
}
relocation = htab->elf.sgot->output_section->vma
+ htab->elf.sgot->output_offset + off;
- unresolved_reloc = FALSE;
+ unresolved_reloc = false;
break;
case R_X86_64_DTPOFF32:
{
case R_X86_64_32S:
sec = h->root.u.def.section;
- if ((info->nocopyreloc
- || (eh->def_protected
- && elf_has_no_copy_on_protected (h->root.u.def.section->owner)))
+ if ((info->nocopyreloc || eh->def_protected)
&& !(h->root.u.def.section->flags & SEC_CODE))
return elf_x86_64_need_pic (info, input_bfd, input_section,
h, NULL, NULL, howto);
(uint64_t) rel->r_offset,
howto->name,
h->root.root.string);
- return FALSE;
+ return false;
}
}
symtab_hdr->sh_link,
sym->st_name);
if (name == NULL)
- return FALSE;
+ return false;
if (*name == '\0')
name = bfd_section_name (sec);
}
if (converted_reloc)
{
info->callbacks->einfo
- (_("%F%P: failed to convert GOTPCREL relocation; relink with --no-relax\n"));
- return FALSE;
+ ("%X%H:", input_bfd, input_section, rel->r_offset);
+ info->callbacks->einfo
+ (_(" failed to convert GOTPCREL relocation against "
+ "'%s'; relink with --no-relax\n"),
+ name);
+ status = false;
+ continue;
}
(*info->callbacks->reloc_overflow)
(info, (h ? &h->root : NULL), name, howto->name,
(_("%pB(%pA+%#" PRIx64 "): reloc against `%s': error %d"),
input_bfd, input_section,
(uint64_t) rel->r_offset, name, (int) r);
- return FALSE;
+ return false;
}
}
input_section->reloc_count -= deleted;
}
- return TRUE;
+ return status;
}
/* Finish up dynamic symbol handling. We set the contents of various
dynamic sections here. */
-static bfd_boolean
+static bool
elf_x86_64_finish_dynamic_symbol (bfd *output_bfd,
struct bfd_link_info *info,
struct elf_link_hash_entry *h,
Elf_Internal_Sym *sym)
{
struct elf_x86_link_hash_table *htab;
- bfd_boolean use_plt_second;
+ bool use_plt_second;
struct elf_x86_link_hash_entry *eh;
- bfd_boolean local_undefweak;
+ bool local_undefweak;
htab = elf_x86_hash_table (info, X86_64_ELF_DATA);
- if (htab == NULL)
- return FALSE;
/* Use the second PLT section only if there is .plt section. */
use_plt_second = htab->elf.splt != NULL && htab->plt_second != NULL;
rela.r_addend = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
+
+ if (htab->params->report_relative_reloc)
+ _bfd_x86_elf_link_report_relative_reloc
+ (info, relplt, h, sym, "R_X86_64_IRELATIVE", &rela);
+
/* R_X86_64_IRELATIVE comes last. */
plt_index = htab->next_irelative_index--;
}
else
{
rela.r_info = htab->r_info (h->dynindx, R_X86_64_JUMP_SLOT);
- rela.r_addend = 0;
+ if (htab->params->mark_plt)
+ rela.r_addend = (resolved_plt->output_section->vma
+ + plt_offset
+ + htab->plt.plt_indirect_branch_offset);
+ else
+ rela.r_addend = 0;
plt_index = htab->next_jump_slot_index++;
}
{
bfd_vma got_offset, plt_offset;
asection *plt, *got;
- bfd_boolean got_after_plt;
+ bool got_after_plt;
int32_t got_pcrel_offset;
/* Set the entry in the GOT procedure linkage table. */
{
Elf_Internal_Rela rela;
asection *relgot = htab->elf.srelgot;
+ const char *relative_reloc_name = NULL;
+ bool generate_dynamic_reloc = true;
/* This symbol has an entry in the global offset table. Set it
up. */
rela.r_addend = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
+ relative_reloc_name = "R_X86_64_IRELATIVE";
}
else
goto do_glob_dat;
+ plt->output_offset
+ plt_offset),
htab->elf.sgot->contents + h->got.offset);
- return TRUE;
+ return true;
}
}
else if (bfd_link_pic (info)
&& SYMBOL_REFERENCES_LOCAL_P (info, h))
{
if (!SYMBOL_DEFINED_NON_SHARED_P (h))
- return FALSE;
+ return false;
BFD_ASSERT((h->got.offset & 1) != 0);
- rela.r_info = htab->r_info (0, R_X86_64_RELATIVE);
- rela.r_addend = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
+ if (info->enable_dt_relr)
+ generate_dynamic_reloc = false;
+ else
+ {
+ rela.r_info = htab->r_info (0, R_X86_64_RELATIVE);
+ rela.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ relative_reloc_name = "R_X86_64_RELATIVE";
+ }
}
else
{
rela.r_addend = 0;
}
- elf_append_rela (output_bfd, relgot, &rela);
+ if (generate_dynamic_reloc)
+ {
+ if (relative_reloc_name != NULL
+ && htab->params->report_relative_reloc)
+ _bfd_x86_elf_link_report_relative_reloc
+ (info, relgot, h, sym, relative_reloc_name, &rela);
+
+ elf_append_rela (output_bfd, relgot, &rela);
+ }
}
if (h->needs_copy)
elf_append_rela (output_bfd, s, &rela);
}
- return TRUE;
+ return true;
}
/* Finish up local dynamic symbol handling. We set the contents of
various dynamic sections here. */
-static bfd_boolean
+static int
elf_x86_64_finish_local_dynamic_symbol (void **slot, void *inf)
{
struct elf_link_hash_entry *h
here since undefined weak symbol may not be dynamic and may not be
called for elf_x86_64_finish_dynamic_symbol. */
-static bfd_boolean
+static bool
elf_x86_64_pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
void *inf)
{
if (h->root.type != bfd_link_hash_undefweak
|| h->dynindx != -1)
- return TRUE;
+ return true;
return elf_x86_64_finish_dynamic_symbol (info->output_bfd,
info, h, NULL);
/* Finish up the dynamic sections. */
-static bfd_boolean
+static bool
elf_x86_64_finish_dynamic_sections (bfd *output_bfd,
struct bfd_link_info *info)
{
htab = _bfd_x86_elf_finish_dynamic_sections (output_bfd, info);
if (htab == NULL)
- return FALSE;
+ return false;
if (! htab->elf.dynamic_sections_created)
- return TRUE;
+ return true;
if (htab->elf.splt && htab->elf.splt->size > 0)
{
+ if (bfd_is_abs_section (htab->elf.splt->output_section))
+ {
+ info->callbacks->einfo
+ (_("%F%P: discarded output section: `%pA'\n"),
+ htab->elf.splt);
+ return false;
+ }
+
elf_section_data (htab->elf.splt->output_section)
->this_hdr.sh_entsize = htab->plt.plt_entry_size;
+ htab->lazy_plt->plt0_got2_offset));
}
- if (htab->tlsdesc_plt)
+ if (htab->elf.tlsdesc_plt)
{
bfd_put_64 (output_bfd, (bfd_vma) 0,
- htab->elf.sgot->contents + htab->tlsdesc_got);
+ htab->elf.sgot->contents + htab->elf.tlsdesc_got);
- memcpy (htab->elf.splt->contents + htab->tlsdesc_plt,
+ memcpy (htab->elf.splt->contents + htab->elf.tlsdesc_plt,
htab->lazy_plt->plt_tlsdesc_entry,
htab->lazy_plt->plt_tlsdesc_entry_size);
+ 8
- htab->elf.splt->output_section->vma
- htab->elf.splt->output_offset
- - htab->tlsdesc_plt
+ - htab->elf.tlsdesc_plt
- htab->lazy_plt->plt_tlsdesc_got1_insn_end),
(htab->elf.splt->contents
- + htab->tlsdesc_plt
+ + htab->elf.tlsdesc_plt
+ htab->lazy_plt->plt_tlsdesc_got1_offset));
/* Add offset for indirect branch via GOT+TDG, where TDG
stands for htab->tlsdesc_got, subtracting the offset
bfd_put_32 (output_bfd,
(htab->elf.sgot->output_section->vma
+ htab->elf.sgot->output_offset
- + htab->tlsdesc_got
+ + htab->elf.tlsdesc_got
- htab->elf.splt->output_section->vma
- htab->elf.splt->output_offset
- - htab->tlsdesc_plt
+ - htab->elf.tlsdesc_plt
- htab->lazy_plt->plt_tlsdesc_got2_insn_end),
(htab->elf.splt->contents
- + htab->tlsdesc_plt
+ + htab->elf.tlsdesc_plt
+ htab->lazy_plt->plt_tlsdesc_got2_offset));
}
}
elf_x86_64_pie_finish_undefweak_symbol,
info);
- return TRUE;
+ return true;
}
/* Fill PLT/GOT entries and allocate dynamic relocations for local
It has to be done before elf_link_sort_relocs is called so that
dynamic relocations are properly sorted. */
-static bfd_boolean
+static bool
elf_x86_64_output_arch_local_syms
(bfd *output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info,
struct elf_x86_link_hash_table *htab
= elf_x86_hash_table (info, X86_64_ELF_DATA);
if (htab == NULL)
- return FALSE;
+ return false;
/* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
htab_traverse (htab->loc_hash_table,
elf_x86_64_finish_local_dynamic_symbol,
info);
- return TRUE;
+ return true;
}
-/* Forward declaration. */
-static const struct elf_x86_lazy_plt_layout elf_x86_64_nacl_plt;
-
/* Similar to _bfd_elf_get_synthetic_symtab. Support PLTs with all
dynamic relocations. */
const struct elf_x86_non_lazy_plt_layout *non_lazy_bnd_plt;
const struct elf_x86_lazy_plt_layout *lazy_ibt_plt;
const struct elf_x86_non_lazy_plt_layout *non_lazy_ibt_plt;
+ const struct elf_x86_lazy_plt_layout *x32_lazy_ibt_plt;
+ const struct elf_x86_non_lazy_plt_layout *x32_non_lazy_ibt_plt;
asection *plt;
enum elf_x86_plt_type plt_type;
struct elf_x86_plt plts[] =
if (relsize <= 0)
return -1;
- if (get_elf_x86_backend_data (abfd)->target_os != is_nacl)
+ lazy_plt = &elf_x86_64_lazy_plt;
+ non_lazy_plt = &elf_x86_64_non_lazy_plt;
+ lazy_bnd_plt = &elf_x86_64_lazy_bnd_plt;
+ non_lazy_bnd_plt = &elf_x86_64_non_lazy_bnd_plt;
+ if (ABI_64_P (abfd))
{
- lazy_plt = &elf_x86_64_lazy_plt;
- non_lazy_plt = &elf_x86_64_non_lazy_plt;
- lazy_bnd_plt = &elf_x86_64_lazy_bnd_plt;
- non_lazy_bnd_plt = &elf_x86_64_non_lazy_bnd_plt;
- if (ABI_64_P (abfd))
- {
- lazy_ibt_plt = &elf_x86_64_lazy_ibt_plt;
- non_lazy_ibt_plt = &elf_x86_64_non_lazy_ibt_plt;
- }
- else
- {
- lazy_ibt_plt = &elf_x32_lazy_ibt_plt;
- non_lazy_ibt_plt = &elf_x32_non_lazy_ibt_plt;
- }
+ lazy_ibt_plt = &elf_x86_64_lazy_ibt_plt;
+ non_lazy_ibt_plt = &elf_x86_64_non_lazy_ibt_plt;
+ x32_lazy_ibt_plt = &elf_x32_lazy_ibt_plt;
+ x32_non_lazy_ibt_plt = &elf_x32_non_lazy_ibt_plt;
}
else
{
- lazy_plt = &elf_x86_64_nacl_plt;
- non_lazy_plt = NULL;
- lazy_bnd_plt = NULL;
- non_lazy_bnd_plt = NULL;
- lazy_ibt_plt = NULL;
- non_lazy_ibt_plt = NULL;
+ lazy_ibt_plt = &elf_x32_lazy_ibt_plt;
+ non_lazy_ibt_plt = &elf_x32_non_lazy_ibt_plt;
+ x32_lazy_ibt_plt = NULL;
+ x32_non_lazy_ibt_plt = NULL;
}
count = 0;
for (j = 0; plts[j].name != NULL; j++)
{
plt = bfd_get_section_by_name (abfd, plts[j].name);
- if (plt == NULL || plt->size == 0)
+ if (plt == NULL
+ || plt->size == 0
+ || (plt->flags & SEC_HAS_CONTENTS) == 0)
continue;
/* Get the PLT section contents. */
- plt_contents = (bfd_byte *) bfd_malloc (plt->size);
- if (plt_contents == NULL)
+ if (!_bfd_elf_mmap_section_contents (abfd, plt, &plt_contents))
break;
- if (!bfd_get_section_contents (abfd, (asection *) plt,
- plt_contents, 0, plt->size))
- {
- free (plt_contents);
- break;
- }
/* Check what kind of PLT it is. */
plt_type = plt_unknown;
lazy_plt->plt0_got1_offset) == 0)
&& (memcmp (plt_contents + 6, lazy_plt->plt0_entry + 6,
2) == 0))
- plt_type = plt_lazy;
+ {
+ if (x32_lazy_ibt_plt != NULL
+ && (memcmp (plt_contents
+ + x32_lazy_ibt_plt->plt_entry_size,
+ x32_lazy_ibt_plt->plt_entry,
+ x32_lazy_ibt_plt->plt_got_offset) == 0))
+ {
+ /* The fist entry in the x32 lazy IBT PLT is the same
+ as the lazy PLT. */
+ plt_type = plt_lazy | plt_second;
+ lazy_plt = x32_lazy_ibt_plt;
+ }
+ else
+ plt_type = plt_lazy;
+ }
else if (lazy_bnd_plt != NULL
&& (memcmp (plt_contents, lazy_bnd_plt->plt0_entry,
lazy_bnd_plt->plt0_got1_offset) == 0)
plt_type = plt_second;
non_lazy_plt = non_lazy_ibt_plt;
}
+ else if (x32_non_lazy_ibt_plt != NULL
+ && plt->size >= x32_non_lazy_ibt_plt->plt_entry_size
+ && (memcmp (plt_contents,
+ x32_non_lazy_ibt_plt->plt_entry,
+ x32_non_lazy_ibt_plt->plt_got_offset) == 0))
+ {
+ /* Match x32 IBT PLT. */
+ plt_type = plt_second;
+ non_lazy_plt = x32_non_lazy_ibt_plt;
+ }
}
if (plt_type == plt_unknown)
{
- free (plt_contents);
+ _bfd_elf_munmap_section_contents (plt, plt_contents);
continue;
}
/* Handle an x86-64 specific section when reading an object file. This
is called when elfcode.h finds a section with an unknown type. */
-static bfd_boolean
+static bool
elf_x86_64_section_from_shdr (bfd *abfd, Elf_Internal_Shdr *hdr,
const char *name, int shindex)
{
if (hdr->sh_type != SHT_X86_64_UNWIND)
- return FALSE;
+ return false;
if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
/* Hook called by the linker routine which adds symbols from an object
file. We use it to put SHN_X86_64_LCOMMON items in .lbss, instead
of .bss. */
-static bfd_boolean
+static bool
elf_x86_64_add_symbol_hook (bfd *abfd,
struct bfd_link_info *info ATTRIBUTE_UNUSED,
Elf_Internal_Sym *sym,
| SEC_IS_COMMON
| SEC_LINKER_CREATED));
if (lcomm == NULL)
- return FALSE;
+ return false;
elf_section_flags (lcomm) |= SHF_X86_64_LARGE;
}
*secp = lcomm;
*valp = sym->st_size;
- return TRUE;
+ return true;
}
- return TRUE;
+ return true;
}
/* Given a BFD section, try to locate the corresponding ELF section
index. */
-static bfd_boolean
+static bool
elf_x86_64_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
asection *sec, int *index_return)
{
if (sec == &_bfd_elf_large_com_section)
{
*index_return = SHN_X86_64_LCOMMON;
- return TRUE;
+ return true;
}
- return FALSE;
+ return false;
}
/* Process a symbol. */
}
}
-static bfd_boolean
+static bool
elf_x86_64_common_definition (Elf_Internal_Sym *sym)
{
return (sym->st_shndx == SHN_COMMON
return &_bfd_elf_large_com_section;
}
-static bfd_boolean
+static bool
elf_x86_64_merge_symbol (struct elf_link_hash_entry *h,
const Elf_Internal_Sym *sym,
asection **psec,
- bfd_boolean newdef,
- bfd_boolean olddef,
+ bool newdef,
+ bool olddef,
bfd *oldbfd,
const asection *oldsec)
{
*psec = bfd_com_section_ptr;
}
- return TRUE;
+ return true;
+}
+
+static bool
+elf_x86_64_section_flags (const Elf_Internal_Shdr *hdr)
+{
+ if ((hdr->sh_flags & SHF_X86_64_LARGE) != 0)
+ hdr->bfd_section->flags |= SEC_ELF_LARGE;
+
+ return true;
+}
+
+static bool
+elf_x86_64_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
+ Elf_Internal_Shdr *hdr, asection *sec)
+{
+ if (sec->flags & SEC_ELF_LARGE)
+ hdr->sh_flags |= SHF_X86_64_LARGE;
+
+ return true;
+}
+
+static bool
+elf_x86_64_copy_private_section_data (bfd *ibfd, asection *isec,
+ bfd *obfd, asection *osec)
+{
+ if (!_bfd_elf_copy_private_section_data (ibfd, isec, obfd, osec))
+ return false;
+
+ /* objcopy --set-section-flags without "large" drops SHF_X86_64_LARGE. */
+ if (ibfd != obfd)
+ elf_section_flags (osec) &= ~SHF_X86_64_LARGE;
+
+ return true;
}
static int
/* Return TRUE iff relocations for INPUT are compatible with OUTPUT. */
-static bfd_boolean
+static bool
elf_x86_64_relocs_compatible (const bfd_target *input,
const bfd_target *output)
{
elf_x86_64_link_setup_gnu_properties (struct bfd_link_info *info)
{
struct elf_x86_init_table init_table;
+ const struct elf_backend_data *bed;
+ struct elf_x86_link_hash_table *htab;
if ((int) R_X86_64_standard >= (int) R_X86_64_converted_reloc_bit
|| (int) R_X86_64_max <= (int) R_X86_64_converted_reloc_bit
/* This is unused for x86-64. */
init_table.plt0_pad_byte = 0x90;
- if (get_elf_x86_backend_data (info->output_bfd)->target_os != is_nacl)
- {
- const struct elf_backend_data *bed
- = get_elf_backend_data (info->output_bfd);
- struct elf_x86_link_hash_table *htab
- = elf_x86_hash_table (info, bed->target_id);
- if (!htab)
- abort ();
- if (htab->params->bndplt)
- {
- init_table.lazy_plt = &elf_x86_64_lazy_bnd_plt;
- init_table.non_lazy_plt = &elf_x86_64_non_lazy_bnd_plt;
- }
- else
- {
- init_table.lazy_plt = &elf_x86_64_lazy_plt;
- init_table.non_lazy_plt = &elf_x86_64_non_lazy_plt;
- }
+ bed = get_elf_backend_data (info->output_bfd);
+ htab = elf_x86_hash_table (info, bed->target_id);
+ if (!htab)
+ abort ();
- if (ABI_64_P (info->output_bfd))
- {
- init_table.lazy_ibt_plt = &elf_x86_64_lazy_ibt_plt;
- init_table.non_lazy_ibt_plt = &elf_x86_64_non_lazy_ibt_plt;
- }
- else
- {
- init_table.lazy_ibt_plt = &elf_x32_lazy_ibt_plt;
- init_table.non_lazy_ibt_plt = &elf_x32_non_lazy_ibt_plt;
- }
+ init_table.lazy_plt = &elf_x86_64_lazy_plt;
+ init_table.non_lazy_plt = &elf_x86_64_non_lazy_plt;
+
+ init_table.lazy_ibt_plt = &elf_x32_lazy_ibt_plt;
+ init_table.non_lazy_ibt_plt = &elf_x32_non_lazy_ibt_plt;
+
+ if (ABI_64_P (info->output_bfd))
+ {
+ init_table.sframe_lazy_plt = &elf_x86_64_sframe_plt;
+ init_table.sframe_non_lazy_plt = &elf_x86_64_sframe_non_lazy_plt;
+ init_table.sframe_lazy_ibt_plt = &elf_x86_64_sframe_plt;
+ init_table.sframe_non_lazy_ibt_plt = &elf_x86_64_sframe_non_lazy_plt;
}
else
{
- init_table.lazy_plt = &elf_x86_64_nacl_plt;
- init_table.non_lazy_plt = NULL;
- init_table.lazy_ibt_plt = NULL;
- init_table.non_lazy_ibt_plt = NULL;
+ /* SFrame is not supported for non AMD64. */
+ init_table.sframe_lazy_plt = NULL;
+ init_table.sframe_non_lazy_plt = NULL;
}
if (ABI_64_P (info->output_bfd))
return _bfd_x86_elf_link_setup_gnu_properties (info, &init_table);
}
+static void
+elf_x86_64_add_glibc_version_dependency
+ (struct elf_find_verdep_info *rinfo)
+{
+ unsigned int i = 0;
+ const char *version[3] = { NULL, NULL, NULL };
+ struct elf_x86_link_hash_table *htab;
+
+ if (rinfo->info->enable_dt_relr)
+ {
+ version[i] = "GLIBC_ABI_DT_RELR";
+ i++;
+ }
+
+ htab = elf_x86_hash_table (rinfo->info, X86_64_ELF_DATA);
+ if (htab != NULL && htab->params->mark_plt)
+ {
+ version[i] = "GLIBC_2.36";
+ i++;
+ }
+
+ if (i != 0)
+ _bfd_elf_link_add_glibc_version_dependency (rinfo, version);
+}
+
static const struct bfd_elf_special_section
elf_x86_64_special_sections[]=
{
#define ELF_ARCH bfd_arch_i386
#define ELF_TARGET_ID X86_64_ELF_DATA
#define ELF_MACHINE_CODE EM_X86_64
-#if DEFAULT_LD_Z_SEPARATE_CODE
-# define ELF_MAXPAGESIZE 0x1000
-#else
-# define ELF_MAXPAGESIZE 0x200000
-#endif
-#define ELF_MINPAGESIZE 0x1000
+#define ELF_MAXPAGESIZE 0x1000
#define ELF_COMMONPAGESIZE 0x1000
#define elf_backend_can_gc_sections 1
#define elf_backend_got_header_size (GOT_ENTRY_SIZE*3)
#define elf_backend_rela_normal 1
#define elf_backend_plt_alignment 4
-#define elf_backend_extern_protected_data 1
#define elf_backend_caches_rawsize 1
#define elf_backend_dtrel_excludes_plt 1
#define elf_backend_want_dynrelro 1
#define elf_info_to_howto elf_x86_64_info_to_howto
+#define bfd_elf64_bfd_copy_private_section_data \
+ elf_x86_64_copy_private_section_data
#define bfd_elf64_bfd_reloc_type_lookup elf_x86_64_reloc_type_lookup
#define bfd_elf64_bfd_reloc_name_lookup \
elf_x86_64_reloc_name_lookup
#define elf_backend_relocs_compatible elf_x86_64_relocs_compatible
-#define elf_backend_check_relocs elf_x86_64_check_relocs
+#define elf_backend_early_size_sections elf_x86_64_early_size_sections
#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
#define elf_backend_finish_dynamic_sections elf_x86_64_finish_dynamic_sections
#define elf_backend_finish_dynamic_symbol elf_x86_64_finish_dynamic_symbol
elf_x86_64_merge_symbol
#define elf_backend_special_sections \
elf_x86_64_special_sections
+#define elf_backend_section_flags elf_x86_64_section_flags
+#define elf_backend_fake_sections elf_x86_64_fake_sections
#define elf_backend_additional_program_headers \
elf_x86_64_additional_program_headers
#define elf_backend_setup_gnu_properties \
elf_x86_64_link_setup_gnu_properties
#define elf_backend_hide_symbol \
_bfd_x86_elf_hide_symbol
+#define elf_backend_add_glibc_version_dependency \
+ elf_x86_64_add_glibc_version_dependency
#undef elf64_bed
#define elf64_bed elf64_x86_64_bed
#undef TARGET_LITTLE_NAME
#define TARGET_LITTLE_NAME "elf64-x86-64-sol2"
-static const struct elf_x86_backend_data elf_x86_64_solaris_arch_bed =
- {
- is_solaris /* os */
- };
-
-#undef elf_backend_arch_data
-#define elf_backend_arch_data &elf_x86_64_solaris_arch_bed
+#undef ELF_TARGET_OS
+#define ELF_TARGET_OS is_solaris
/* Restore default: we cannot use ELFOSABI_SOLARIS, otherwise ELFOSABI_NONE
objects won't be recognized. */
#undef elf_backend_strtab_flags
#define elf_backend_strtab_flags SHF_STRINGS
-static bfd_boolean
+static bool
elf64_x86_64_copy_solaris_special_section_fields (const bfd *ibfd ATTRIBUTE_UNUSED,
bfd *obfd ATTRIBUTE_UNUSED,
const Elf_Internal_Shdr *isection ATTRIBUTE_UNUSED,
{
/* PR 19938: FIXME: Need to add code for setting the sh_info
and sh_link fields of Solaris specific section types. */
- return FALSE;
+ return false;
}
#undef elf_backend_copy_special_section_fields
#include "elf64-target.h"
-/* Native Client support. */
-
-static bfd_boolean
-elf64_x86_64_nacl_elf_object_p (bfd *abfd)
-{
- /* Set the right machine number for a NaCl x86-64 ELF64 file. */
- bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x86_64_nacl);
- return TRUE;
-}
-
-#undef TARGET_LITTLE_SYM
-#define TARGET_LITTLE_SYM x86_64_elf64_nacl_vec
-#undef TARGET_LITTLE_NAME
-#define TARGET_LITTLE_NAME "elf64-x86-64-nacl"
-#undef elf64_bed
-#define elf64_bed elf64_x86_64_nacl_bed
-
-#undef ELF_MAXPAGESIZE
-#undef ELF_MINPAGESIZE
-#undef ELF_COMMONPAGESIZE
-#define ELF_MAXPAGESIZE 0x10000
-#define ELF_MINPAGESIZE 0x10000
-#define ELF_COMMONPAGESIZE 0x10000
-
/* Restore defaults. */
#undef ELF_OSABI
#undef elf_backend_static_tls_alignment
#undef elf_backend_strtab_flags
#undef elf_backend_copy_special_section_fields
-/* NaCl uses substantially different PLT entries for the same effects. */
-
-#undef elf_backend_plt_alignment
-#define elf_backend_plt_alignment 5
-#define NACL_PLT_ENTRY_SIZE 64
-#define NACLMASK 0xe0 /* 32-byte alignment mask. */
-
-static const bfd_byte elf_x86_64_nacl_plt0_entry[NACL_PLT_ENTRY_SIZE] =
- {
- 0xff, 0x35, 8, 0, 0, 0, /* pushq GOT+8(%rip) */
- 0x4c, 0x8b, 0x1d, 16, 0, 0, 0, /* mov GOT+16(%rip), %r11 */
- 0x41, 0x83, 0xe3, NACLMASK, /* and $-32, %r11d */
- 0x4d, 0x01, 0xfb, /* add %r15, %r11 */
- 0x41, 0xff, 0xe3, /* jmpq *%r11 */
-
- /* 9-byte nop sequence to pad out to the next 32-byte boundary. */
- 0x66, 0x0f, 0x1f, 0x84, 0, 0, 0, 0, 0, /* nopw 0x0(%rax,%rax,1) */
-
- /* 32 bytes of nop to pad out to the standard size. */
- 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, /* excess data16 prefixes */
- 0x2e, 0x0f, 0x1f, 0x84, 0, 0, 0, 0, 0, /* nopw %cs:0x0(%rax,%rax,1) */
- 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, /* excess data16 prefixes */
- 0x2e, 0x0f, 0x1f, 0x84, 0, 0, 0, 0, 0, /* nopw %cs:0x0(%rax,%rax,1) */
- 0x66, /* excess data16 prefix */
- 0x90 /* nop */
- };
-
-static const bfd_byte elf_x86_64_nacl_plt_entry[NACL_PLT_ENTRY_SIZE] =
- {
- 0x4c, 0x8b, 0x1d, 0, 0, 0, 0, /* mov name@GOTPCREL(%rip),%r11 */
- 0x41, 0x83, 0xe3, NACLMASK, /* and $-32, %r11d */
- 0x4d, 0x01, 0xfb, /* add %r15, %r11 */
- 0x41, 0xff, 0xe3, /* jmpq *%r11 */
-
- /* 15-byte nop sequence to pad out to the next 32-byte boundary. */
- 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, /* excess data16 prefixes */
- 0x2e, 0x0f, 0x1f, 0x84, 0, 0, 0, 0, 0, /* nopw %cs:0x0(%rax,%rax,1) */
-
- /* Lazy GOT entries point here (32-byte aligned). */
- 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. */
-
- /* 22 bytes of nop to pad out to the standard size. */
- 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, /* excess data16 prefixes */
- 0x2e, 0x0f, 0x1f, 0x84, 0, 0, 0, 0, 0, /* nopw %cs:0x0(%rax,%rax,1) */
- 0x0f, 0x1f, 0x80, 0, 0, 0, 0, /* nopl 0x0(%rax) */
- };
-
-/* .eh_frame covering the .plt section. */
-
-static const bfd_byte elf_x86_64_nacl_eh_frame_plt[] =
- {
-#if (PLT_CIE_LENGTH != 20 \
- || PLT_FDE_LENGTH != 36 \
- || PLT_FDE_START_OFFSET != 4 + PLT_CIE_LENGTH + 8 \
- || PLT_FDE_LEN_OFFSET != 4 + PLT_CIE_LENGTH + 12)
-# error "Need elf_x86_backend_data parameters for eh_frame_plt offsets!"
-#endif
- 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 + 58, /* DW_CFA_advance_loc: 58 to __PLT__+64 */
- DW_CFA_def_cfa_expression, /* DW_CFA_def_cfa_expression */
- 13, /* Block length */
- DW_OP_breg7, 8, /* DW_OP_breg7 (rsp): 8 */
- DW_OP_breg16, 0, /* DW_OP_breg16 (rip): 0 */
- DW_OP_const1u, 63, DW_OP_and, DW_OP_const1u, 37, DW_OP_ge,
- DW_OP_lit3, DW_OP_shl, DW_OP_plus,
- DW_CFA_nop, DW_CFA_nop
- };
-
-static const struct elf_x86_lazy_plt_layout elf_x86_64_nacl_plt =
- {
- elf_x86_64_nacl_plt0_entry, /* plt0_entry */
- NACL_PLT_ENTRY_SIZE, /* plt0_entry_size */
- elf_x86_64_nacl_plt_entry, /* plt_entry */
- NACL_PLT_ENTRY_SIZE, /* plt_entry_size */
- elf_x86_64_nacl_plt0_entry, /* plt_tlsdesc_entry */
- NACL_PLT_ENTRY_SIZE, /* plt_tlsdesc_entry_size */
- 2, /* plt_tlsdesc_got1_offset */
- 9, /* plt_tlsdesc_got2_offset */
- 6, /* plt_tlsdesc_got1_insn_end */
- 13, /* plt_tlsdesc_got2_insn_end */
- 2, /* plt0_got1_offset */
- 9, /* plt0_got2_offset */
- 13, /* plt0_got2_insn_end */
- 3, /* plt_got_offset */
- 33, /* plt_reloc_offset */
- 38, /* plt_plt_offset */
- 7, /* plt_got_insn_size */
- 42, /* plt_plt_insn_end */
- 32, /* plt_lazy_offset */
- elf_x86_64_nacl_plt0_entry, /* pic_plt0_entry */
- elf_x86_64_nacl_plt_entry, /* pic_plt_entry */
- elf_x86_64_nacl_eh_frame_plt, /* eh_frame_plt */
- sizeof (elf_x86_64_nacl_eh_frame_plt) /* eh_frame_plt_size */
- };
-
-static const struct elf_x86_backend_data elf_x86_64_nacl_arch_bed =
- {
- is_nacl /* os */
- };
-
-#undef elf_backend_arch_data
-#define elf_backend_arch_data &elf_x86_64_nacl_arch_bed
-
-#undef elf_backend_object_p
-#define elf_backend_object_p elf64_x86_64_nacl_elf_object_p
-#undef elf_backend_modify_segment_map
-#define elf_backend_modify_segment_map nacl_modify_segment_map
-#undef elf_backend_modify_headers
-#define elf_backend_modify_headers nacl_modify_headers
-#undef elf_backend_final_write_processing
-#define elf_backend_final_write_processing nacl_final_write_processing
-
-#include "elf64-target.h"
-
-/* Native Client x32 support. */
-
-static bfd_boolean
-elf32_x86_64_nacl_elf_object_p (bfd *abfd)
-{
- /* Set the right machine number for a NaCl x86-64 ELF32 file. */
- bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x64_32_nacl);
- return TRUE;
-}
-
-#undef TARGET_LITTLE_SYM
-#define TARGET_LITTLE_SYM x86_64_elf32_nacl_vec
-#undef TARGET_LITTLE_NAME
-#define TARGET_LITTLE_NAME "elf32-x86-64-nacl"
-#undef elf32_bed
-#define elf32_bed elf32_x86_64_nacl_bed
-
-#define bfd_elf32_bfd_reloc_type_lookup \
- elf_x86_64_reloc_type_lookup
-#define bfd_elf32_bfd_reloc_name_lookup \
- elf_x86_64_reloc_name_lookup
-#define bfd_elf32_get_synthetic_symtab \
- elf_x86_64_get_synthetic_symtab
-
-#undef elf_backend_object_p
-#define elf_backend_object_p \
- elf32_x86_64_nacl_elf_object_p
-
-#undef elf_backend_bfd_from_remote_memory
-#define elf_backend_bfd_from_remote_memory \
- _bfd_elf32_bfd_from_remote_memory
-
-#undef elf_backend_size_info
-#define elf_backend_size_info \
- _bfd_elf32_size_info
-
-#undef elf32_bed
-#define elf32_bed elf32_x86_64_bed
-
-#include "elf32-target.h"
-
-/* Restore defaults. */
-#undef elf_backend_object_p
-#define elf_backend_object_p elf64_x86_64_elf_object_p
-#undef elf_backend_bfd_from_remote_memory
-#undef elf_backend_size_info
-#undef elf_backend_modify_segment_map
-#undef elf_backend_modify_headers
-#undef elf_backend_final_write_processing
-
-/* 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 l1om_elf64_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
-
-/* Restore defaults. */
-#undef ELF_MAXPAGESIZE
-#undef ELF_MINPAGESIZE
-#undef ELF_COMMONPAGESIZE
-#if DEFAULT_LD_Z_SEPARATE_CODE
-# define ELF_MAXPAGESIZE 0x1000
-#else
-# define ELF_MAXPAGESIZE 0x200000
-#endif
-#define ELF_MINPAGESIZE 0x1000
-#define ELF_COMMONPAGESIZE 0x1000
-#undef elf_backend_plt_alignment
-#define elf_backend_plt_alignment 4
-#undef elf_backend_arch_data
-#define elf_backend_arch_data &elf_x86_64_arch_bed
-
-#include "elf64-target.h"
-
-/* FreeBSD L1OM support. */
-
-#undef TARGET_LITTLE_SYM
-#define TARGET_LITTLE_SYM l1om_elf64_fbsd_vec
-#undef TARGET_LITTLE_NAME
-#define TARGET_LITTLE_NAME "elf64-l1om-freebsd"
-
-#undef ELF_OSABI
-#define ELF_OSABI ELFOSABI_FREEBSD
-
-#undef elf64_bed
-#define elf64_bed elf64_l1om_fbsd_bed
-
-#include "elf64-target.h"
-
-/* Intel K1OM support. */
-
-static bfd_boolean
-elf64_k1om_elf_object_p (bfd *abfd)
-{
- /* Set the right machine number for an K1OM elf64 file. */
- bfd_default_set_arch_mach (abfd, bfd_arch_k1om, bfd_mach_k1om);
- return TRUE;
-}
-
-#undef TARGET_LITTLE_SYM
-#define TARGET_LITTLE_SYM k1om_elf64_vec
-#undef TARGET_LITTLE_NAME
-#define TARGET_LITTLE_NAME "elf64-k1om"
-#undef ELF_ARCH
-#define ELF_ARCH bfd_arch_k1om
-
-#undef ELF_MACHINE_CODE
-#define ELF_MACHINE_CODE EM_K1OM
-
-#undef ELF_OSABI
-
-#undef elf64_bed
-#define elf64_bed elf64_k1om_bed
-
-#undef elf_backend_object_p
-#define elf_backend_object_p elf64_k1om_elf_object_p
-
-#undef elf_backend_static_tls_alignment
-
-#undef elf_backend_want_plt_sym
-#define elf_backend_want_plt_sym 0
-
-#include "elf64-target.h"
-
-/* FreeBSD K1OM support. */
-
-#undef TARGET_LITTLE_SYM
-#define TARGET_LITTLE_SYM k1om_elf64_fbsd_vec
-#undef TARGET_LITTLE_NAME
-#define TARGET_LITTLE_NAME "elf64-k1om-freebsd"
-
-#undef ELF_OSABI
-#define ELF_OSABI ELFOSABI_FREEBSD
-
-#undef elf64_bed
-#define elf64_bed elf64_k1om_fbsd_bed
-
-#include "elf64-target.h"
-
/* 32bit x86-64 support. */
#undef TARGET_LITTLE_SYM
#undef TARGET_LITTLE_NAME
#define TARGET_LITTLE_NAME "elf32-x86-64"
#undef elf32_bed
+#define elf32_bed elf32_x86_64_bed
#undef ELF_ARCH
#define ELF_ARCH bfd_arch_i386
#undef ELF_MACHINE_CODE
#define ELF_MACHINE_CODE EM_X86_64
+#undef ELF_TARGET_OS
#undef ELF_OSABI
+#define bfd_elf32_bfd_copy_private_section_data \
+ elf_x86_64_copy_private_section_data
+#define bfd_elf32_bfd_reloc_type_lookup \
+ elf_x86_64_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup \
+ elf_x86_64_reloc_name_lookup
+#define bfd_elf32_get_synthetic_symtab \
+ elf_x86_64_get_synthetic_symtab
+
#undef elf_backend_object_p
#define elf_backend_object_p \
elf32_x86_64_elf_object_p
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