#define MINUS_ONE (~ (bfd_vma) 0)
/* The relocation "howto" table. Order of fields:
- type, size, bitsize, pc_relative, complain_on_overflow,
- special_function, name, partial_inplace, src_mask, dst_pack, pcrel_offset. */
+ type, rightshift, size, bitsize, pc_relative, bitpos, complain_on_overflow,
+ special_function, name, partial_inplace, src_mask, dst_mask, pcrel_offset. */
static reloc_howto_type x86_64_elf_howto_table[] =
{
HOWTO(R_X86_64_NONE, 0, 0, 0, FALSE, 0, complain_overflow_dont,
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),
- EMPTY_HOWTO (27),
- EMPTY_HOWTO (28),
- EMPTY_HOWTO (29),
- EMPTY_HOWTO (30),
- EMPTY_HOWTO (31),
+ 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),
EMPTY_HOWTO (32),
EMPTY_HOWTO (33),
HOWTO(R_X86_64_GOTPC32_TLSDESC, 0, 2, 32, TRUE, 0,
{ BFD_RELOC_64_PCREL, R_X86_64_PC64, },
{ BFD_RELOC_X86_64_GOTOFF64, R_X86_64_GOTOFF64, },
{ BFD_RELOC_X86_64_GOTPC32, R_X86_64_GOTPC32, },
+ { BFD_RELOC_X86_64_GOT64, R_X86_64_GOT64, },
+ { BFD_RELOC_X86_64_GOTPCREL64,R_X86_64_GOTPCREL64, },
+ { BFD_RELOC_X86_64_GOTPC64, R_X86_64_GOTPC64, },
+ { BFD_RELOC_X86_64_GOTPLT64, R_X86_64_GOTPLT64, },
+ { BFD_RELOC_X86_64_PLTOFF64, R_X86_64_PLTOFF64, },
{ BFD_RELOC_X86_64_GOTPC32_TLSDESC, R_X86_64_GOTPC32_TLSDESC, },
{ BFD_RELOC_X86_64_TLSDESC_CALL, R_X86_64_TLSDESC_CALL, },
{ BFD_RELOC_X86_64_TLSDESC, R_X86_64_TLSDESC, },
case R_X86_64_GOT32:
case R_X86_64_GOTPCREL:
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_TLSDESC_CALL:
/* This symbol requires a global offset table entry. */
if (h != NULL)
{
+ if (r_type == R_X86_64_GOTPLT64)
+ {
+ /* This relocation indicates that we also need
+ a PLT entry, as this is a function. We don't need
+ a PLT entry for local symbols. */
+ h->needs_plt = 1;
+ h->plt.refcount += 1;
+ }
h->got.refcount += 1;
old_tls_type = elf64_x86_64_hash_entry (h)->tls_type;
}
case R_X86_64_GOTOFF64:
case R_X86_64_GOTPC32:
+ case R_X86_64_GOTPC64:
create_got:
if (htab->sgot == NULL)
{
h->plt.refcount += 1;
break;
+ case R_X86_64_PLTOFF64:
+ /* This tries to form the 'address' of a function relative
+ to GOT. For global symbols we need a PLT entry. */
+ if (h != NULL)
+ {
+ h->needs_plt = 1;
+ h->plt.refcount += 1;
+ }
+ goto create_got;
+
case R_X86_64_8:
case R_X86_64_16:
case R_X86_64_32:
case R_X86_64_GOTTPOFF:
case R_X86_64_GOT32:
case R_X86_64_GOTPCREL:
+ case R_X86_64_GOT64:
+ case R_X86_64_GOTPCREL64:
+ case R_X86_64_GOTPLT64:
if (h != NULL)
{
+ if (r_type == R_X86_64_GOTPLT64 && h->plt.refcount > 0)
+ h->plt.refcount -= 1;
if (h->got.refcount > 0)
h->got.refcount -= 1;
}
/* Fall thru */
case R_X86_64_PLT32:
+ case R_X86_64_PLTOFF64:
if (h != NULL)
{
if (h->plt.refcount > 0)
copied into the output file to be resolved at run time. */
switch (r_type)
{
+ asection *base_got;
case R_X86_64_GOT32:
+ case R_X86_64_GOT64:
/* Relocation is to the entry for this symbol in the global
offset table. */
case R_X86_64_GOTPCREL:
- /* Use global offset table as symbol value. */
+ case R_X86_64_GOTPCREL64:
+ /* Use global offset table entry as symbol value. */
+ case R_X86_64_GOTPLT64:
+ /* This is the same as GOT64 for relocation purposes, but
+ indicates the existence of a PLT entry. The difficulty is,
+ that we must calculate the GOT slot offset from the PLT
+ offset, if this symbol got a PLT entry (it was global).
+ Additionally if it's computed from the PLT entry, then that
+ GOT offset is relative to .got.plt, not to .got. */
+ base_got = htab->sgot;
+
if (htab->sgot == NULL)
abort ();
bfd_boolean dyn;
off = h->got.offset;
+ if (h->needs_plt
+ && h->plt.offset != (bfd_vma)-1
+ && off == (bfd_vma)-1)
+ {
+ /* We can't use h->got.offset here to save
+ state, or even just remember the offset, as
+ finish_dynamic_symbol would use that as offset into
+ .got. */
+ bfd_vma plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
+ off = (plt_index + 3) * GOT_ENTRY_SIZE;
+ base_got = htab->sgotplt;
+ }
+
dyn = htab->elf.dynamic_sections_created;
if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
else
{
bfd_put_64 (output_bfd, relocation,
- htab->sgot->contents + off);
+ base_got->contents + off);
+ /* Note that this is harmless for the GOTPLT64 case,
+ as -1 | 1 still is -1. */
h->got.offset |= 1;
}
}
else
{
bfd_put_64 (output_bfd, relocation,
- htab->sgot->contents + off);
+ base_got->contents + off);
if (info->shared)
{
if (s == NULL)
abort ();
- outrel.r_offset = (htab->sgot->output_section->vma
- + htab->sgot->output_offset
+ outrel.r_offset = (base_got->output_section->vma
+ + base_got->output_offset
+ off);
outrel.r_info = ELF64_R_INFO (0, R_X86_64_RELATIVE);
outrel.r_addend = relocation;
if (off >= (bfd_vma) -2)
abort ();
- relocation = htab->sgot->output_section->vma
- + htab->sgot->output_offset + off;
- if (r_type != R_X86_64_GOTPCREL)
+ relocation = base_got->output_section->vma
+ + base_got->output_offset + off;
+ if (r_type != R_X86_64_GOTPCREL && r_type != R_X86_64_GOTPCREL64)
relocation -= htab->sgotplt->output_section->vma
- htab->sgotplt->output_offset;
break;
case R_X86_64_GOTPC32:
+ case R_X86_64_GOTPC64:
/* Use global offset table as symbol value. */
relocation = htab->sgotplt->output_section->vma
+ htab->sgotplt->output_offset;
unresolved_reloc = FALSE;
break;
+ case R_X86_64_PLTOFF64:
+ /* Relocation is PLT entry relative to GOT. For local
+ symbols it's the symbol itself relative to GOT. */
+ if (h != NULL
+ /* See PLT32 handling. */
+ && h->plt.offset != (bfd_vma) -1
+ && htab->splt != NULL)
+ {
+ relocation = (htab->splt->output_section->vma
+ + htab->splt->output_offset
+ + h->plt.offset);
+ unresolved_reloc = FALSE;
+ }
+
+ relocation -= htab->sgotplt->output_section->vma
+ + htab->sgotplt->output_offset;
+ break;
+
case R_X86_64_PLT32:
/* Relocation is to the entry for this symbol in the
procedure linkage table. */
projects / deliverable / binutils-gdb.git / blobdiff