elf_aarch64_link_hash_entry. */
#define RELOC_SIZE(HTAB) (sizeof (ElfNN_External_Rela))
-/* GOT Entry size - 8 bytes in ELF64 and 4 bytes in ELF32. */
-#define GOT_ENTRY_SIZE (ARCH_SIZE / 8)
+/* GOT Entry size - 16 bytes in C64, 8 bytes in ELF64 and 4 bytes in ELF32. */
+#define GOT_ENTRY_SIZE(htab) (ARCH_SIZE >> (3 - htab->c64_rel))
+#define GOT_RESERVED_HEADER_SLOTS (3)
#define PLT_ENTRY_SIZE (32)
#define PLT_SMALL_ENTRY_SIZE (16)
#define PLT_TLSDESC_ENTRY_SIZE (32)
#define aarch64_compute_jump_table_size(htab) \
(((htab)->root.srelplt == NULL) ? 0 \
- : (htab)->root.srelplt->reloc_count * GOT_ENTRY_SIZE)
+ : (htab)->root.srelplt->reloc_count * GOT_ENTRY_SIZE (htab))
/* The first entry in a procedure linkage table looks like this
if the distance between the PLTGOT and the PLT is < 4GB use
0xff8, /* dst_mask */
false), /* pcrel_offset */
+ /* LD128: GOT offset G(S) & 0xff0 */
+ HOWTO64 (MORELLO_R (LD128_GOT_LO12_NC), /* type */
+ 4, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 12, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ MORELLO_R_STR (LD128_GOT_LO12_NC), /* name */
+ false, /* partial_inplace */
+ 0xff0, /* src_mask */
+ 0xff0, /* dst_mask */
+ false), /* pcrel_offset */
+
/* LD32: GOT offset G(S) & 0xffc */
HOWTO32 (AARCH64_R (LD32_GOT_LO12_NC), /* type */
2, /* rightshift */
ALL_ONES, /* dst_mask */
false), /* pcrel_offset */
- HOWTO64 (MORELLO_R (RELATIVE), /* type */
+ HOWTO64 (MORELLO_R (GLOB_DAT),/* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ MORELLO_R_STR (GLOB_DAT), /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO64 (MORELLO_R (RELATIVE),/* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
64, /* bitsize */
#define GOT_TLS_GD 2
#define GOT_TLS_IE 4
#define GOT_TLSDESC_GD 8
+#define GOT_CAP 16
#define GOT_TLS_GD_ANY_P(type) ((type & GOT_TLS_GD) || (type & GOT_TLSDESC_GD))
/* Used for capability relocations. */
asection *srelcaps;
+ int c64_rel;
};
/* Create an entry in an AArch64 ELF linker hash table. */
workaround. */
globals->fix_erratum_843419 = fix_erratum_843419;
globals->no_apply_dynamic_relocs = no_apply_dynamic_relocs;
+ globals->c64_rel = 0;
BFD_ASSERT (is_aarch64_elf (output_bfd));
elf_aarch64_tdata (output_bfd)->no_enum_size_warning = no_enum_warn;
switch (r_type)
{
case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
- case BFD_RELOC_MORELLO_ADR_GOT_PAGE:
case BFD_RELOC_AARCH64_GOT_LD_PREL19:
case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
return GOT_NORMAL;
+ case BFD_RELOC_MORELLO_ADR_GOT_PAGE:
+ case BFD_RELOC_MORELLO_LD128_GOT_LO12_NC:
+ return GOT_CAP;
+
case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
+ case BFD_RELOC_MORELLO_LD128_GOT_LO12_NC:
base_got = globals->root.sgot;
off = h->got.offset;
{
plt_index = ((h->plt.offset - globals->plt_header_size) /
globals->plt_entry_size);
- off = (plt_index + 3) * GOT_ENTRY_SIZE;
+ off = (plt_index + 3) * GOT_ENTRY_SIZE (globals);
base_got = globals->root.sgotplt;
}
else
{
plt_index = h->plt.offset / globals->plt_entry_size;
- off = plt_index * GOT_ENTRY_SIZE;
+ off = plt_index * GOT_ENTRY_SIZE (globals);
base_got = globals->root.igotplt;
}
case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
+ case BFD_RELOC_MORELLO_LD128_GOT_LO12_NC:
case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
/* Record the GOT entry address which will be used when generating
RELATIVE relocation. */
if (relative_reloc)
- got_entry_addr = value;
+ {
+ got_entry_addr = value;
+ base_got = globals->root.sgot;
+ off = h->got.offset & ~1;
+ }
if (aarch64_relocation_aginst_gp_p (bfd_r_type))
addend = (globals->root.sgot->output_section->vma
value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type,
place, value,
addend, weak_undef_p);
+ value |= h->target_internal;
}
else
{
value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type,
place, value,
addend, weak_undef_p);
+
+ value |= sym->st_target_internal;
}
if (relative_reloc)
asection *s;
Elf_Internal_Rela outrel;
+ enum elf_aarch64_reloc_type rtype = AARCH64_R (RELATIVE);
+
+ /* For a C64 relative relocation, also add size and permissions into
+ the frag. */
+ if (bfd_r_type == BFD_RELOC_MORELLO_LD128_GOT_LO12_NC
+ || bfd_r_type == BFD_RELOC_MORELLO_ADR_GOT_PAGE)
+ {
+ bfd_reloc_status_type ret;
+
+ ret = c64_fixup_frag (input_bfd, info, bfd_r_type, sym, h,
+ sym_sec, base_got->contents + off + 8,
+ orig_value, 0);
+
+ if (ret != bfd_reloc_continue)
+ return ret;
+
+ rtype = MORELLO_R (RELATIVE);
+ outrel.r_addend = 0;
+ }
+ else
+ outrel.r_addend = orig_value;
+
s = globals->root.srelgot;
if (s == NULL)
abort ();
outrel.r_offset = got_entry_addr;
- outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE));
- outrel.r_addend = orig_value;
+ outrel.r_info = ELFNN_R_INFO (0, rtype);
elf_append_rela (output_bfd, s, &outrel);
}
break;
base address when invoke runtime TLS resolver. */
bfd_put_NN (output_bfd, 0,
globals->root.sgot->contents + off
- + GOT_ENTRY_SIZE);
+ + GOT_ENTRY_SIZE (globals));
}
else if (indx == 0)
{
bfd_put_NN (output_bfd,
relocation - dtpoff_base (info),
globals->root.sgot->contents + off
- + GOT_ENTRY_SIZE);
+ + GOT_ENTRY_SIZE (globals));
}
else
{
rela.r_offset =
(globals->root.sgot->output_section->vma
+ globals->root.sgot->output_offset + off
- + GOT_ENTRY_SIZE);
+ + GOT_ENTRY_SIZE (globals));
loc = globals->root.srelgot->contents;
loc += globals->root.srelgot->reloc_count++
bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
bfd_put_NN (output_bfd, (bfd_vma) 0,
globals->root.sgot->contents + off
- + GOT_ENTRY_SIZE);
+ + GOT_ENTRY_SIZE (globals));
}
}
else
bfd_put_NN (output_bfd,
relocation - dtpoff_base (info),
globals->root.sgot->contents + off
- + GOT_ENTRY_SIZE);
+ + GOT_ENTRY_SIZE (globals));
}
symbol_got_offset_mark (input_bfd, h, r_symndx);
bfd_put_NN (output_bfd, (bfd_vma) 0,
globals->root.sgotplt->contents + off +
globals->sgotplt_jump_table_size +
- GOT_ENTRY_SIZE);
+ GOT_ENTRY_SIZE (globals));
}
symbol_tlsdesc_got_offset_mark (input_bfd, h, r_symndx);
return true;
}
+/* Initialise the .got section to hold the global offset table. */
+
+static void
+aarch64_elf_init_got_section (bfd *abfd, struct bfd_link_info *info)
+{
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ asection *s;
+ struct elf_aarch64_link_hash_table *globals = elf_aarch64_hash_table (info);
+ unsigned int align = bed->s->log_file_align + globals->c64_rel;
+
+ if (globals->root.sgot != NULL)
+ {
+ bfd_set_section_alignment (globals->root.srelgot,
+ bed->s->log_file_align);
+ bfd_set_section_alignment (globals->root.sgot, align);
+ globals->root.sgot->size += GOT_ENTRY_SIZE (globals);
+ }
+
+ if (globals->root.igotplt != NULL)
+ bfd_set_section_alignment (globals->root.igotplt, align);
+
+ s = globals->root.sgot;
+
+ if (globals->root.sgotplt != NULL)
+ {
+ bfd_set_section_alignment (globals->root.sgotplt, align);
+ s = globals->root.sgotplt;
+ }
+
+ /* The first bit of the global offset table is the header. */
+ if (s != NULL)
+ s->size += bed->got_header_size (info);
+}
+
/* Create the .got section to hold the global offset table. */
static bool
? ".rela.got" : ".rel.got"),
(bed->dynamic_sec_flags
| SEC_READONLY));
- if (s == NULL
- || !bfd_set_section_alignment (s, bed->s->log_file_align))
+ if (s == NULL)
return false;
htab->srelgot = s;
s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
- if (s == NULL
- || !bfd_set_section_alignment (s, bed->s->log_file_align))
+ if (s == NULL)
return false;
htab->sgot = s;
- htab->sgot->size += GOT_ENTRY_SIZE;
if (bed->want_got_sym)
{
if (bed->want_got_plt)
{
s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
- if (s == NULL
- || !bfd_set_section_alignment (s, bed->s->log_file_align))
+ if (s == NULL)
return false;
htab->sgotplt = s;
}
- /* The first bit of the global offset table is the header. */
- s->size += bed->got_header_size (info);
-
return true;
}
case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
+ case BFD_RELOC_MORELLO_LD128_GOT_LO12_NC:
case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
case BFD_RELOC_AARCH64_NN:
/* RR: We probably want to keep a consistency check that
there are no dangling GOT_PAGE relocs. */
- case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
case BFD_RELOC_MORELLO_ADR_GOT_PAGE:
+ case BFD_RELOC_MORELLO_LD128_GOT_LO12_NC:
+ htab->c64_rel = 1;
+ /* Fall through. */
+
+ case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
case BFD_RELOC_AARCH64_GOT_LD_PREL19:
case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
is a TLS/non-TLS mismatch, based on the symbol type.
So just combine any TLS types needed. */
if (old_got_type != GOT_UNKNOWN && old_got_type != GOT_NORMAL
- && got_type != GOT_NORMAL)
+ && got_type != GOT_NORMAL && old_got_type != GOT_CAP
+ && got_type != GOT_CAP)
got_type |= old_got_type;
/* If the symbol is accessed by both IE and GD methods, we
if ((got_type & GOT_TLS_IE) && GOT_TLS_GD_ANY_P (got_type))
got_type &= ~ (GOT_TLSDESC_GD | GOT_TLS_GD);
- if (old_got_type != got_type)
+ /* GOT_CAP has higher precedence due to higher alignment and size
+ requirements, so do not overwrite it. XXX This should be
+ revisited when we add TLS relocations. */
+ if (old_got_type != got_type && old_got_type != GOT_CAP)
{
if (h != NULL)
elf_aarch64_hash_entry (h)->got_type = got_type;
/* We also need to make an entry in the .got.plt section, which
will be placed in the .got section by the linker script. */
- htab->root.sgotplt->size += GOT_ENTRY_SIZE;
+ htab->root.sgotplt->size += GOT_ENTRY_SIZE (htab);
/* We also need to make an entry in the .rela.plt section. */
htab->root.srelplt->size += RELOC_SIZE (htab);
if (got_type == GOT_UNKNOWN)
{
}
- else if (got_type == GOT_NORMAL)
+ else if (got_type == GOT_NORMAL
+ || got_type == GOT_CAP)
{
h->got.offset = htab->root.sgot->size;
- htab->root.sgot->size += GOT_ENTRY_SIZE;
+ htab->root.sgot->size += GOT_ENTRY_SIZE (htab);
if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak)
&& (bfd_link_pic (info)
eh->tlsdesc_got_jump_table_offset =
(htab->root.sgotplt->size
- aarch64_compute_jump_table_size (htab));
- htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2;
+ htab->root.sgotplt->size += GOT_ENTRY_SIZE (htab) * 2;
h->got.offset = (bfd_vma) - 2;
}
if (got_type & GOT_TLS_GD)
{
h->got.offset = htab->root.sgot->size;
- htab->root.sgot->size += GOT_ENTRY_SIZE * 2;
+ htab->root.sgot->size += GOT_ENTRY_SIZE (htab) * 2;
}
if (got_type & GOT_TLS_IE)
{
h->got.offset = htab->root.sgot->size;
- htab->root.sgot->size += GOT_ENTRY_SIZE;
+ htab->root.sgot->size += GOT_ENTRY_SIZE (htab);
}
indx = h && h->dynindx != -1 ? h->dynindx : 0;
&h->dyn_relocs,
htab->plt_entry_size,
htab->plt_header_size,
- GOT_ENTRY_SIZE,
+ GOT_ENTRY_SIZE (htab),
false);
return true;
}
though ! */
static bool
-elfNN_aarch64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
+elfNN_aarch64_size_dynamic_sections (bfd *output_bfd,
struct bfd_link_info *info)
{
struct elf_aarch64_link_hash_table *htab;
}
}
+ aarch64_elf_init_got_section (output_bfd, info);
+
/* Set up .got offsets for local syms, and space for local dynamic
relocs. */
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
locals[i].tlsdesc_got_jump_table_offset =
(htab->root.sgotplt->size
- aarch64_compute_jump_table_size (htab));
- htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2;
+ htab->root.sgotplt->size += GOT_ENTRY_SIZE (htab) * 2;
locals[i].got_offset = (bfd_vma) - 2;
}
if (got_type & GOT_TLS_GD)
{
locals[i].got_offset = htab->root.sgot->size;
- htab->root.sgot->size += GOT_ENTRY_SIZE * 2;
+ htab->root.sgot->size += GOT_ENTRY_SIZE (htab) * 2;
}
if (got_type & GOT_TLS_IE
- || got_type & GOT_NORMAL)
+ || got_type & GOT_NORMAL
+ || got_type & GOT_CAP)
{
locals[i].got_offset = htab->root.sgot->size;
- htab->root.sgot->size += GOT_ENTRY_SIZE;
+ htab->root.sgot->size += GOT_ENTRY_SIZE (htab);
}
if (got_type == GOT_UNKNOWN)
htab->root.srelgot->size += RELOC_SIZE (htab) * 2;
if (got_type & GOT_TLS_IE
- || got_type & GOT_NORMAL)
+ || got_type & GOT_NORMAL
+ || got_type & GOT_CAP)
htab->root.srelgot->size += RELOC_SIZE (htab);
}
}
htab->root.splt->size += htab->tlsdesc_plt_entry_size;
htab->root.tlsdesc_got = htab->root.sgot->size;
- htab->root.sgot->size += GOT_ENTRY_SIZE;
+ htab->root.sgot->size += GOT_ENTRY_SIZE (htab);
}
}
if (plt == htab->root.splt)
{
plt_index = (h->plt.offset - htab->plt_header_size) / htab->plt_entry_size;
- got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
+ got_offset = (plt_index + 3) * GOT_ENTRY_SIZE (htab);
}
else
{
plt_index = h->plt.offset / htab->plt_entry_size;
- got_offset = plt_index * GOT_ENTRY_SIZE;
+ got_offset = plt_index * GOT_ENTRY_SIZE (htab);
}
plt_entry = plt->contents + h->plt.offset;
}
}
+ bool is_c64 = elf_aarch64_hash_entry (h)->got_type == GOT_CAP;
+
if (h->got.offset != (bfd_vma) - 1
- && elf_aarch64_hash_entry (h)->got_type == GOT_NORMAL
+ && (elf_aarch64_hash_entry (h)->got_type == GOT_NORMAL
+ || elf_aarch64_hash_entry (h)->got_type == GOT_CAP)
/* Undefined weak symbol in static PIE resolves to 0 without
any dynamic relocations. */
&& !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
return false;
BFD_ASSERT ((h->got.offset & 1) != 0);
- rela.r_info = ELFNN_R_INFO (0, AARCH64_R (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 (is_c64)
+ {
+ rela.r_info = ELFNN_R_INFO (0, MORELLO_R (RELATIVE));
+ rela.r_addend = 0;
+ }
+ else
+ {
+ rela.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE));
+ rela.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
}
else
{
BFD_ASSERT ((h->got.offset & 1) == 0);
bfd_put_NN (output_bfd, (bfd_vma) 0,
htab->root.sgot->contents + h->got.offset);
- rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (GLOB_DAT));
+ rela.r_info = ELFNN_R_INFO (h->dynindx,
+ (is_c64 ? MORELLO_R (GLOB_DAT)
+ : AARCH64_R (GLOB_DAT)));
rela.r_addend = 0;
}
plt_got_2nd_ent = (htab->root.sgotplt->output_section->vma
+ htab->root.sgotplt->output_offset
- + GOT_ENTRY_SIZE * 2);
+ + GOT_ENTRY_SIZE (htab) * 2);
plt_base = htab->root.splt->output_section->vma +
htab->root.splt->output_offset;
/* Write GOT[1] and GOT[2], needed for the dynamic linker. */
bfd_put_NN (output_bfd,
(bfd_vma) 0,
- htab->root.sgotplt->contents + GOT_ENTRY_SIZE);
+ htab->root.sgotplt->contents + GOT_ENTRY_SIZE (htab));
bfd_put_NN (output_bfd,
(bfd_vma) 0,
- htab->root.sgotplt->contents + GOT_ENTRY_SIZE * 2);
+ (htab->root.sgotplt->contents
+ + GOT_ENTRY_SIZE (htab) * 2));
}
if (htab->root.sgot)
}
elf_section_data (htab->root.sgotplt->output_section)->
- this_hdr.sh_entsize = GOT_ENTRY_SIZE;
+ this_hdr.sh_entsize = GOT_ENTRY_SIZE (htab);
}
if (htab->root.sgot && htab->root.sgot->size > 0)
elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize
- = GOT_ENTRY_SIZE;
+ = GOT_ENTRY_SIZE (htab);
/* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
htab_traverse (htab->loc_hash_table,
bfd_elfNN_swap_symbol_out (abfd, &newsym, cdst, shndx);
}
+/* Define the size of a GOT element for the generic mid-end. */
+
+static bfd_vma
+elfNN_aarch64_got_elt_size (bfd *abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info,
+ struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
+ bfd *ibfd ATTRIBUTE_UNUSED,
+ unsigned long symndx ATTRIBUTE_UNUSED)
+{
+ struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info);
+
+ return GOT_ENTRY_SIZE (htab);
+}
+
/* Define the size of a GOT header, which is the minimum size of the GOT section
when one is needed. */
static bfd_vma
-elfNN_aarch64_got_header_size (struct bfd_link_info *info ATTRIBUTE_UNUSED)
+elfNN_aarch64_got_header_size (struct bfd_link_info *info)
{
- return GOT_ENTRY_SIZE * 3;
+ struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info);
+
+ return GOT_ENTRY_SIZE (htab) * GOT_RESERVED_HEADER_SLOTS;
}
/* We use this so we can override certain functions
#define elf_backend_got_header_size \
elfNN_aarch64_got_header_size
+#define elf_backend_got_elt_size \
+ elfNN_aarch64_got_elt_size
+
#define elf_backend_can_refcount 1
#define elf_backend_can_gc_sections 1
#define elf_backend_plt_readonly 1
projects / thirdparty / binutils-gdb.git / commitdiff
