MA 02110-1301, USA. */
#include "elfxx-x86.h"
-#include "elf-nacl.h"
#include "dwarf2.h"
#include "libiberty.h"
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. */
if (relsize <= 0)
return -1;
- if (get_elf_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;
}
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;
}
count = 0;
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_backend_data (info->output_bfd)->target_os != is_nacl)
+ bed = get_elf_backend_data (info->output_bfd);
+ htab = elf_x86_hash_table (info, bed->target_id);
+ if (!htab)
+ abort ();
+ if (htab->params->bndplt)
{
- 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;
- }
+ 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;
+ }
- 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;
- }
+ 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_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;
+ 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))
#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 PLT_CIE_LENGTH 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 */
- };
-
-#undef ELF_TARGET_OS
-#define ELF_TARGET_OS is_nacl
-
-#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
#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_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_OSABI
+#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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