#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
#define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
#define elf_backend_special_sections ppc64_elf_special_sections
+#define elf_backend_post_process_headers _bfd_elf_set_osabi
/* The name of the dynamic interpreter. This is put in the .interp
section. */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
+ HOWTO (R_PPC64_JMP_IREL, /* type */
+ 0, /* rightshift */
+ 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ ppc64_elf_unhandled_reloc, /* special_function */
+ "R_PPC64_JMP_IREL", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_PPC64_IRELATIVE, /* type */
+ 0, /* rightshift */
+ 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
+ 64, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC64_IRELATIVE", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ ONES (64), /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 16 bit relative relocation. */
+ HOWTO (R_PPC64_REL16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC64_REL16", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* A 16 bit relative relocation without overflow. */
+ HOWTO (R_PPC64_REL16_LO, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC64_REL16_LO", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* The high order 16 bits of a relative address. */
+ HOWTO (R_PPC64_REL16_HI, /* type */
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC64_REL16_HI", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* The high order 16 bits of a relative address, plus 1 if the contents of
+ the low 16 bits, treated as a signed number, is negative. */
+ HOWTO (R_PPC64_REL16_HA, /* type */
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ ppc64_elf_ha_reloc, /* special_function */
+ "R_PPC64_REL16_HA", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
/* GNU extension to record C++ vtable hierarchy. */
HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
0, /* rightshift */
break;
case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
break;
+ case BFD_RELOC_16_PCREL: r = R_PPC64_REL16;
+ break;
+ case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO;
+ break;
+ case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI;
+ break;
+ case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA;
+ break;
case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
break;
case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
p = relplt->relocation;
for (i = 0; i < plt_count; i++, p++)
- size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
+ {
+ size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
+ if (p->addend != 0)
+ size += sizeof ("+0x") - 1 + 16;
+ }
}
}
len = strlen ((*p->sym_ptr_ptr)->name);
memcpy (names, (*p->sym_ptr_ptr)->name, len);
names += len;
+ if (p->addend != 0)
+ {
+ memcpy (names, "+0x", sizeof ("+0x") - 1);
+ names += sizeof ("+0x") - 1;
+ bfd_sprintf_vma (abfd, names, p->addend);
+ names += strlen (names);
+ }
memcpy (names, "@plt", sizeof ("@plt"));
names += sizeof ("@plt");
s++;
/* The symbol table entry, if any, that this was derived from. */
struct ppc_link_hash_entry *h;
+ struct plt_entry *plt_ent;
/* And the reloc addend that this was derived from. */
bfd_vma addend;
#define TLS_TLS 16 /* Any TLS reloc. */
#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
+#define PLT_IFUNC 128 /* STT_GNU_IFUNC. */
char tls_mask;
};
asection *got;
asection *plt;
asection *relplt;
+ asection *iplt;
+ asection *reliplt;
asection *dynbss;
asection *relbss;
asection *glink;
|| ! bfd_set_section_alignment (dynobj, htab->glink, 3))
return FALSE;
+ flags = SEC_ALLOC | SEC_LINKER_CREATED;
+ htab->iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags);
+ if (htab->iplt == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->iplt, 3))
+ return FALSE;
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
+ | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ htab->reliplt = bfd_make_section_anyway_with_flags (dynobj,
+ ".rela.iplt",
+ flags);
+ if (htab->reliplt == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->reliplt, 3))
+ return FALSE;
+
/* Create branch lookup table for plt_branch stubs. */
flags = (SEC_ALLOC | SEC_LOAD
| SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
".rela.branch_lt",
flags);
- if (!htab->relbrlt
+ if (htab->relbrlt == NULL
|| ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
return FALSE;
static bfd_boolean
ppc64_elf_add_symbol_hook (bfd *ibfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info,
Elf_Internal_Sym *isym,
const char **name ATTRIBUTE_UNUSED,
flagword *flags ATTRIBUTE_UNUSED,
asection **sec,
bfd_vma *value ATTRIBUTE_UNUSED)
{
- if (*sec != NULL
- && strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0)
+ if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
+ elf_tdata (info->output_bfd)->has_ifunc_symbols = TRUE;
+ else if (ELF_ST_TYPE (isym->st_info) == STT_FUNC)
+ ;
+ else if (*sec != NULL
+ && strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0)
isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
return TRUE;
return TRUE;
}
-static bfd_boolean
+static struct plt_entry **
update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
unsigned long r_symndx, bfd_vma r_addend, int tls_type)
{
struct got_entry **local_got_ents = elf_local_got_ents (abfd);
+ struct plt_entry **local_plt;
char *local_got_tls_masks;
if (local_got_ents == NULL)
{
bfd_size_type size = symtab_hdr->sh_info;
- size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
+ size *= (sizeof (*local_got_ents)
+ + sizeof (*local_plt)
+ + sizeof (*local_got_tls_masks));
local_got_ents = bfd_zalloc (abfd, size);
if (local_got_ents == NULL)
- return FALSE;
+ return NULL;
elf_local_got_ents (abfd) = local_got_ents;
}
- if ((tls_type & TLS_EXPLICIT) == 0)
+ if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0)
{
struct got_entry *ent;
ent->got.refcount += 1;
}
- local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
+ local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info);
+ local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
local_got_tls_masks[r_symndx] |= tls_type;
- return TRUE;
+
+ return local_plt + r_symndx;
}
static bfd_boolean
-update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
+update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend)
{
struct plt_entry *ent;
- for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
+ for (ent = *plist; ent != NULL; ent = ent->next)
if (ent->addend == addend)
break;
if (ent == NULL)
ent = bfd_alloc (abfd, amt);
if (ent == NULL)
return FALSE;
- ent->next = eh->elf.plt.plist;
+ ent->next = *plist;
ent->addend = addend;
ent->plt.refcount = 0;
- eh->elf.plt.plist = ent;
+ *plist = ent;
}
ent->plt.refcount += 1;
- eh->elf.needs_plt = 1;
- if (eh->elf.root.root.string[0] == '.'
- && eh->elf.root.root.string[1] != '\0')
- eh->is_func = 1;
return TRUE;
}
+static bfd_boolean
+is_branch_reloc (enum elf_ppc64_reloc_type r_type)
+{
+ return (r_type == R_PPC64_REL24
+ || r_type == R_PPC64_REL14
+ || r_type == R_PPC64_REL14_BRTAKEN
+ || r_type == R_PPC64_REL14_BRNTAKEN
+ || r_type == R_PPC64_ADDR24
+ || r_type == R_PPC64_ADDR14
+ || r_type == R_PPC64_ADDR14_BRTAKEN
+ || r_type == R_PPC64_ADDR14_BRNTAKEN);
+}
+
/* 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. */
enum elf_ppc64_reloc_type r_type;
int tls_type;
struct _ppc64_elf_section_data *ppc64_sec;
+ struct plt_entry **ifunc;
r_symndx = ELF64_R_SYM (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
}
tls_type = 0;
+ ifunc = NULL;
+ if (h != NULL)
+ {
+ if (h->type == STT_GNU_IFUNC)
+ {
+ h->needs_plt = 1;
+ ifunc = &h->plt.plist;
+ }
+ }
+ else
+ {
+ Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ abfd, r_symndx);
+ if (isym == NULL)
+ return FALSE;
+
+ if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
+ {
+ ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
+ rel->r_addend, PLT_IFUNC);
+ if (ifunc == NULL)
+ return FALSE;
+ }
+ }
r_type = ELF64_R_TYPE (rel->r_info);
- if (h != NULL && (h == tga || h == dottga))
- switch (r_type)
- {
- default:
- break;
+ if (is_branch_reloc (r_type))
+ {
+ if (h != NULL && (h == tga || h == dottga))
+ {
+ if (rel != relocs
+ && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD
+ || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD))
+ /* We have a new-style __tls_get_addr call with a marker
+ reloc. */
+ ;
+ else
+ /* Mark this section as having an old-style call. */
+ sec->has_tls_get_addr_call = 1;
+ }
- case R_PPC64_REL24:
- case R_PPC64_REL14:
- case R_PPC64_REL14_BRTAKEN:
- case R_PPC64_REL14_BRNTAKEN:
- case R_PPC64_ADDR24:
- case R_PPC64_ADDR14:
- case R_PPC64_ADDR14_BRTAKEN:
- case R_PPC64_ADDR14_BRNTAKEN:
- if (rel != relocs
- && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD
- || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD))
- /* We have a new-style __tls_get_addr call with a marker
- reloc. */
- ;
- else
- /* Mark this section as having an old-style call. */
- sec->has_tls_get_addr_call = 1;
- break;
- }
+ /* STT_GNU_IFUNC symbols must have a PLT entry. */
+ if (ifunc != NULL
+ && !update_plt_info (abfd, ifunc, rel->r_addend))
+ return FALSE;
+ }
switch (r_type)
{
return FALSE;
}
else
- if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
- rel->r_addend))
- return FALSE;
+ {
+ if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
+ return FALSE;
+ h->needs_plt = 1;
+ if (h->root.root.string[0] == '.'
+ && h->root.root.string[1] != '\0')
+ ((struct ppc_link_hash_entry *) h)->is_func = 1;
+ }
break;
/* The following relocations don't need to propagate the
break;
/* Nor do these. */
+ case R_PPC64_REL16:
+ case R_PPC64_REL16_LO:
+ case R_PPC64_REL16_HI:
+ case R_PPC64_REL16_HA:
+ break;
+
case R_PPC64_TOC16:
case R_PPC64_TOC16_LO:
case R_PPC64_TOC16_HI:
/* Fall through. */
case R_PPC64_REL24:
- if (h != NULL)
+ if (h != NULL && ifunc == NULL)
{
/* We may need a .plt entry if the function this reloc
refers to is in a shared lib. */
- if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
- rel->r_addend))
+ if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
return FALSE;
+ h->needs_plt = 1;
+ if (h->root.root.string[0] == '.'
+ && h->root.root.string[1] != '\0')
+ ((struct ppc_link_hash_entry *) h)->is_func = 1;
if (h == tga || h == dottga)
sec->has_tls_reloc = 1;
}
&& !info->shared
&& h != NULL
&& (h->root.type == bfd_link_hash_defweak
- || !h->def_regular)))
+ || !h->def_regular))
+ || (!info->shared
+ && ifunc != NULL))
{
struct ppc_dyn_relocs *p;
struct ppc_dyn_relocs **head;
}
}
+ if (is_branch_reloc (r_type))
+ {
+ struct plt_entry **ifunc = NULL;
+ if (h != NULL)
+ {
+ if (h->type == STT_GNU_IFUNC)
+ ifunc = &h->plt.plist;
+ }
+ else if (local_got_ents != NULL)
+ {
+ struct plt_entry **local_plt = (struct plt_entry **)
+ (local_got_ents + symtab_hdr->sh_info);
+ char *local_got_tls_masks = (char *)
+ (local_plt + symtab_hdr->sh_info);
+ if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
+ ifunc = local_plt + r_symndx;
+ }
+ if (ifunc != NULL)
+ {
+ struct plt_entry *ent;
+
+ for (ent = *ifunc; ent != NULL; ent = ent->next)
+ if (ent->addend == rel->r_addend)
+ break;
+ if (ent == NULL)
+ abort ();
+ if (ent->plt.refcount > 0)
+ ent->plt.refcount -= 1;
+ continue;
+ }
+ }
+
switch (r_type)
{
case R_PPC64_GOT_TLSLD16:
/* Deal with function syms. */
if (h->type == STT_FUNC
+ || h->type == STT_GNU_IFUNC
|| h->needs_plt)
{
/* Clear procedure linkage table information for any symbol that
if (ent->plt.refcount > 0)
break;
if (ent == NULL
- || SYMBOL_CALLS_LOCAL (info, h)
- || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
- && h->root.type == bfd_link_hash_undefweak))
+ || (h->type != STT_GNU_IFUNC
+ && (SYMBOL_CALLS_LOCAL (info, h)
+ || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ && h->root.type == bfd_link_hash_undefweak))))
{
h->plt.plist = NULL;
h->needs_plt = 0;
lgot_ents = elf_local_got_ents (ibfd);
if (lgot_ents != NULL)
{
- char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
+ struct plt_entry **local_plt = (struct plt_entry **)
+ (lgot_ents + symtab_hdr->sh_info);
+ char *lgot_masks = (char *)
+ (local_plt + symtab_hdr->sh_info);
tls_mask = &lgot_masks[r_symndx];
}
*tls_maskp = tls_mask;
enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info);
unsigned int r_symndx = ELF64_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info
- && (r_type == R_PPC64_REL24
- || r_type == R_PPC64_REL14
- || r_type == R_PPC64_REL14_BRTAKEN
- || r_type == R_PPC64_REL14_BRNTAKEN
- || r_type == R_PPC64_ADDR24
- || r_type == R_PPC64_ADDR14
- || r_type == R_PPC64_ADDR14_BRTAKEN
- || r_type == R_PPC64_ADDR14_BRNTAKEN))
+ if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
{
struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
struct elf_link_hash_entry *h;
info = (struct bfd_link_info *) inf;
htab = ppc_hash_table (info);
- if (htab->elf.dynamic_sections_created
- && h->dynindx != -1
- && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
+ if ((htab->elf.dynamic_sections_created
+ && h->dynindx != -1
+ && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
+ || h->type == STT_GNU_IFUNC)
{
struct plt_entry *pent;
bfd_boolean doneone = FALSE;
for (pent = h->plt.plist; pent != NULL; pent = pent->next)
if (pent->plt.refcount > 0)
{
- /* If this is the first .plt entry, make room for the special
- first entry. */
- s = htab->plt;
- if (s->size == 0)
- s->size += PLT_INITIAL_ENTRY_SIZE;
-
- pent->plt.offset = s->size;
-
- /* Make room for this entry. */
- s->size += PLT_ENTRY_SIZE;
-
- /* Make room for the .glink code. */
- s = htab->glink;
- if (s->size == 0)
- s->size += GLINK_CALL_STUB_SIZE;
- /* We need bigger stubs past index 32767. */
- if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
- s->size += 4;
- s->size += 2*4;
-
- /* We also need to make an entry in the .rela.plt section. */
- s = htab->relplt;
+ if (!htab->elf.dynamic_sections_created
+ || h->dynindx == -1)
+ {
+ s = htab->iplt;
+ pent->plt.offset = s->size;
+ s->size += PLT_ENTRY_SIZE;
+ s = htab->reliplt;
+ }
+ else
+ {
+ /* If this is the first .plt entry, make room for the special
+ first entry. */
+ s = htab->plt;
+ if (s->size == 0)
+ s->size += PLT_INITIAL_ENTRY_SIZE;
+
+ pent->plt.offset = s->size;
+
+ /* Make room for this entry. */
+ s->size += PLT_ENTRY_SIZE;
+
+ /* Make room for the .glink code. */
+ s = htab->glink;
+ if (s->size == 0)
+ s->size += GLINK_CALL_STUB_SIZE;
+ /* We need bigger stubs past index 32767. */
+ if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
+ s->size += 4;
+ s->size += 2*4;
+
+ /* We also need to make an entry in the .rela.plt section. */
+ s = htab->relplt;
+ }
s->size += sizeof (Elf64_External_Rela);
doneone = TRUE;
}
if (gent->got.refcount > 0)
{
bfd_boolean dyn;
+ asection *rsec;
/* Make sure this symbol is output as a dynamic symbol.
Undefined weak syms won't yet be marked as dynamic,
nor will all TLS symbols. */
if (h->dynindx == -1
&& !h->forced_local
+ && h->type != STT_GNU_IFUNC
&& htab->elf.dynamic_sections_created)
{
if (! bfd_elf_link_record_dynamic_symbol (info, h))
s->size
+= (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
dyn = htab->elf.dynamic_sections_created;
+ rsec = NULL;
if ((info->shared
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
&& (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak))
- ppc64_elf_tdata (gent->owner)->relgot->size
- += (gent->tls_type & eh->tls_mask & TLS_GD
- ? 2 * sizeof (Elf64_External_Rela)
- : sizeof (Elf64_External_Rela));
+ rsec = ppc64_elf_tdata (gent->owner)->relgot;
+ else if (h->type == STT_GNU_IFUNC)
+ rsec = htab->reliplt;
+ if (rsec != NULL)
+ rsec->size += (gent->tls_type & eh->tls_mask & TLS_GD
+ ? 2 * sizeof (Elf64_External_Rela)
+ : sizeof (Elf64_External_Rela));
}
else
gent->got.offset = (bfd_vma) -1;
if (eh->dyn_relocs == NULL
- || !htab->elf.dynamic_sections_created)
+ || (!htab->elf.dynamic_sections_created
+ && h->type != STT_GNU_IFUNC))
return TRUE;
/* In the shared -Bsymbolic case, discard space allocated for
}
}
}
+ else if (h->type == STT_GNU_IFUNC)
+ {
+ if (!h->non_got_ref)
+ eh->dyn_relocs = NULL;
+ }
else if (ELIMINATE_COPY_RELOCS)
{
/* For the non-shared case, discard space for relocs against
for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
asection *sreloc = elf_section_data (p->sec)->sreloc;
+ if (!htab->elf.dynamic_sections_created)
+ sreloc = htab->reliplt;
sreloc->size += p->count * sizeof (Elf64_External_Rela);
}
{
struct got_entry **lgot_ents;
struct got_entry **end_lgot_ents;
+ struct plt_entry **local_plt;
+ struct plt_entry **end_local_plt;
char *lgot_masks;
bfd_size_type locsymcount;
Elf_Internal_Shdr *symtab_hdr;
else if (p->count != 0)
{
srel = elf_section_data (p->sec)->sreloc;
+ if (!htab->elf.dynamic_sections_created)
+ srel = htab->reliplt;
srel->size += p->count * sizeof (Elf64_External_Rela);
if ((p->sec->output_section->flags & SEC_READONLY) != 0)
info->flags |= DF_TEXTREL;
symtab_hdr = &elf_symtab_hdr (ibfd);
locsymcount = symtab_hdr->sh_info;
end_lgot_ents = lgot_ents + locsymcount;
- lgot_masks = (char *) end_lgot_ents;
+ local_plt = (struct plt_entry **) end_lgot_ents;
+ end_local_plt = local_plt + locsymcount;
+ lgot_masks = (char *) end_local_plt;
s = ppc64_elf_tdata (ibfd)->got;
srel = ppc64_elf_tdata (ibfd)->relgot;
for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
}
else
{
+ unsigned int num = 1;
ent->got.offset = s->size;
if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
- {
- s->size += 16;
- if (info->shared)
- srel->size += 2 * sizeof (Elf64_External_Rela);
- }
- else
- {
- s->size += 8;
- if (info->shared)
- srel->size += sizeof (Elf64_External_Rela);
- }
+ num = 2;
+ s->size += num * 8;
+ if (info->shared)
+ srel->size += num * sizeof (Elf64_External_Rela);
+ else if ((*lgot_masks & PLT_IFUNC) != 0)
+ htab->reliplt->size += num * sizeof (Elf64_External_Rela);
}
}
else
ent->got.offset = (bfd_vma) -1;
}
+
+ /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
+ for (; local_plt < end_local_plt; ++local_plt)
+ {
+ struct plt_entry *ent;
+
+ for (ent = *local_plt; ent != NULL; ent = ent->next)
+ if (ent->plt.refcount > 0)
+ {
+ asection *s = htab->iplt;
+
+ ent->plt.offset = s->size;
+ s->size += PLT_ENTRY_SIZE;
+
+ htab->reliplt->size += sizeof (Elf64_External_Rela);
+ }
+ else
+ ent->plt.offset = (bfd_vma) -1;
+ }
}
/* Allocate global sym .plt and .got entries, and space for global
continue;
else if (s == htab->got
|| s == htab->plt
+ || s == htab->iplt
|| s == htab->glink
|| s == htab->dynbss)
{
ppc_type_of_stub (asection *input_sec,
const Elf_Internal_Rela *rel,
struct ppc_link_hash_entry **hash,
+ struct plt_entry **plt_ent,
bfd_vma destination)
{
struct ppc_link_hash_entry *h = *hash;
if (h != NULL)
{
+ struct plt_entry *ent;
struct ppc_link_hash_entry *fdh = h;
if (fdh->oh != NULL
&& fdh->oh->is_func_descriptor)
fdh = fdh->oh;
- if (fdh->elf.dynindx != -1)
- {
- struct plt_entry *ent;
-
- for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
- if (ent->addend == rel->r_addend
- && ent->plt.offset != (bfd_vma) -1)
- {
- *hash = fdh;
- return ppc_stub_plt_call;
- }
- }
+ for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
+ if (ent->addend == rel->r_addend
+ && ent->plt.offset != (bfd_vma) -1)
+ {
+ *hash = fdh;
+ *plt_ent = ent;
+ return ppc_stub_plt_call;
+ }
/* Here, we know we don't have a plt entry. If we don't have a
either a defined function descriptor or a defined entry symbol
&& h->elf.root.u.def.section->output_section != NULL))
return ppc_stub_none;
}
+ else if (elf_local_got_ents (input_sec->owner) != NULL)
+ {
+ Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner);
+ struct plt_entry **local_plt = (struct plt_entry **)
+ elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info;
+ unsigned long r_symndx = ELF64_R_SYM (rel->r_info);
+
+ if (local_plt[r_symndx] != NULL)
+ {
+ struct plt_entry *ent;
+
+ for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next)
+ if (ent->addend == rel->r_addend
+ && ent->plt.offset != (bfd_vma) -1)
+ {
+ *plt_ent = ent;
+ return ppc_stub_plt_call;
+ }
+ }
+ }
/* Determine where the call point is. */
location = (input_sec->output_offset
struct ppc_link_hash_table *htab;
bfd_byte *loc;
bfd_byte *p;
- struct plt_entry *ent;
bfd_vma dest, off;
int size;
Elf_Internal_Rela *r;
+ asection *plt;
/* Massage our args to the form they really have. */
stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
/* Do the best we can for shared libraries built without
exporting ".foo" for each "foo". This can happen when symbol
versioning scripts strip all bar a subset of symbols. */
- if (stub_entry->h->oh != NULL
+ if (stub_entry->h != NULL
+ && stub_entry->h->oh != NULL
&& stub_entry->h->oh->elf.root.type != bfd_link_hash_defined
&& stub_entry->h->oh->elf.root.type != bfd_link_hash_defweak)
{
}
/* Now build the stub. */
- dest = (bfd_vma) -1;
- for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
- if (ent->addend == stub_entry->addend)
- {
- dest = ent->plt.offset;
- break;
- }
+ dest = stub_entry->plt_ent->plt.offset & ~1;
if (dest >= (bfd_vma) -2)
abort ();
- dest &= ~ (bfd_vma) 1;
- dest += (htab->plt->output_offset
- + htab->plt->output_section->vma);
+ plt = htab->plt;
+ if (!htab->elf.dynamic_sections_created
+ || stub_entry->h == NULL
+ || stub_entry->h->elf.dynindx == -1)
+ plt = htab->iplt;
+
+ dest += plt->output_offset + plt->output_section->vma;
+
+ if (stub_entry->h == NULL
+ && (stub_entry->plt_ent->plt.offset & 1) == 0)
+ {
+ Elf_Internal_Rela rela;
+ bfd_byte *rl;
+
+ rela.r_offset = dest;
+ rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
+ rela.r_addend = (stub_entry->target_value
+ + stub_entry->target_section->output_offset
+ + stub_entry->target_section->output_section->vma);
+
+ rl = (htab->reliplt->contents
+ + (htab->reliplt->reloc_count++
+ * sizeof (Elf64_External_Rela)));
+ bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl);
+ stub_entry->plt_ent->plt.offset |= 1;
+ }
off = (dest
- - elf_gp (htab->plt->output_section->owner)
+ - elf_gp (plt->output_section->owner)
- htab->stub_group[stub_entry->id_sec->id].toc_off);
if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
{
(*_bfd_error_handler)
(_("linkage table error against `%s'"),
- stub_entry->h->elf.root.root.string);
+ stub_entry->h != NULL
+ ? stub_entry->h->elf.root.root.string
+ : "<local sym>");
bfd_set_error (bfd_error_bad_value);
htab->stub_error = TRUE;
return FALSE;
if (stub_entry->stub_type == ppc_stub_plt_call)
{
- struct plt_entry *ent;
- off = (bfd_vma) -1;
- for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
- if (ent->addend == stub_entry->addend)
- {
- off = ent->plt.offset & ~(bfd_vma) 1;
- break;
- }
+ asection *plt;
+ off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1;
if (off >= (bfd_vma) -2)
abort ();
- off += (htab->plt->output_offset
- + htab->plt->output_section->vma
- - elf_gp (htab->plt->output_section->owner)
+ plt = htab->plt;
+ if (!htab->elf.dynamic_sections_created
+ || stub_entry->h == NULL
+ || stub_entry->h->elf.dynindx == -1)
+ plt = htab->iplt;
+ off += (plt->output_offset
+ + plt->output_section->vma
+ - elf_gp (plt->output_section->owner)
- htab->stub_group[stub_entry->id_sec->id].toc_off);
size = PLT_CALL_STUB_SIZE;
enum ppc_stub_type stub_type;
struct ppc_stub_hash_entry *stub_entry;
asection *sym_sec, *code_sec;
- bfd_vma sym_value;
+ bfd_vma sym_value, code_value;
bfd_vma destination;
bfd_boolean ok_dest;
struct ppc_link_hash_entry *hash;
char *stub_name;
const asection *id_sec;
struct _opd_sec_data *opd;
+ struct plt_entry *plt_ent;
r_type = ELF64_R_TYPE (irela->r_info);
r_indx = ELF64_R_SYM (irela->r_info);
}
code_sec = sym_sec;
+ code_value = sym_value;
opd = get_opd_info (sym_sec);
if (opd != NULL)
{
long adjust = opd->adjust[sym_value / 8];
if (adjust == -1)
continue;
+ code_value += adjust;
sym_value += adjust;
}
dest = opd_entry_value (sym_sec, sym_value,
- &code_sec, &sym_value);
+ &code_sec, &code_value);
if (dest != (bfd_vma) -1)
{
destination = dest;
entry. */
hash->elf.root.type = bfd_link_hash_defweak;
hash->elf.root.u.def.section = code_sec;
- hash->elf.root.u.def.value = sym_value;
+ hash->elf.root.u.def.value = code_value;
}
}
}
/* Determine what (if any) linker stub is needed. */
+ plt_ent = NULL;
stub_type = ppc_type_of_stub (section, irela, &hash,
- destination);
+ &plt_ent, destination);
if (stub_type != ppc_stub_plt_call)
{
}
stub_entry->stub_type = stub_type;
- stub_entry->target_value = sym_value;
- stub_entry->target_section = code_sec;
+ if (stub_type != ppc_stub_plt_call)
+ {
+ stub_entry->target_value = code_value;
+ stub_entry->target_section = code_sec;
+ }
+ else
+ {
+ stub_entry->target_value = sym_value;
+ stub_entry->target_section = sym_sec;
+ }
stub_entry->h = hash;
+ stub_entry->plt_ent = plt_ent;
stub_entry->addend = irela->r_addend;
if (stub_entry->h != NULL)
/* The TOC consists of sections .got, .toc, .tocbss, .plt in that
order. The TOC starts where the first of these sections starts. */
s = bfd_get_section_by_name (obfd, ".got");
- if (s == NULL)
+ if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
s = bfd_get_section_by_name (obfd, ".toc");
- if (s == NULL)
+ if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
s = bfd_get_section_by_name (obfd, ".tocbss");
- if (s == NULL)
+ if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
s = bfd_get_section_by_name (obfd, ".plt");
- if (s == NULL)
+ if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
{
/* This may happen for
o references to TOC base (SYM@toc / TOC[tc0]) without a
/* Look for a likely section. We probably won't even be
using TOCstart. */
for (s = obfd->sections; s != NULL; s = s->next)
- if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
+ if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY
+ | SEC_EXCLUDE))
== (SEC_ALLOC | SEC_SMALL_DATA))
break;
if (s == NULL)
for (s = obfd->sections; s != NULL; s = s->next)
- if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
+ if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE))
== (SEC_ALLOC | SEC_SMALL_DATA))
break;
if (s == NULL)
for (s = obfd->sections; s != NULL; s = s->next)
- if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
+ if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE))
+ == SEC_ALLOC)
break;
if (s == NULL)
for (s = obfd->sections; s != NULL; s = s->next)
- if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
+ if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC)
break;
}
tls_mask = h->tls_mask;
else if (local_got_ents != NULL)
{
- char *lgot_masks;
- lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
+ struct plt_entry **local_plt = (struct plt_entry **)
+ (local_got_ents + symtab_hdr->sh_info);
+ char *lgot_masks = (char *)
+ (local_plt + symtab_hdr->sh_info);
tls_mask = lgot_masks[r_symndx];
}
if (tls_mask == 0
&& sec->output_section != NULL
&& sec->id <= htab->top_id
&& (htab->stub_group[sec->id].toc_off
- != htab->stub_group[input_section->id].toc_off)))
+ != htab->stub_group[input_section->id].toc_off))
+ || (h == NULL
+ && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
&& (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
rel, htab)) != NULL
&& (stub_entry->stub_type == ppc_stub_plt_call
/* Generate relocs for the dynamic linker, except in
the case of TLSLD where we'll use one entry per
module. */
- asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
+ asection *relgot;
+ bfd_boolean ifunc;
*offp = off | 1;
+ relgot = NULL;
+ ifunc = (h != NULL
+ ? h->elf.type == STT_GNU_IFUNC
+ : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC);
if ((info->shared || indx != 0)
&& (offp == &ppc64_tlsld_got (input_bfd)->offset
|| h == NULL
|| ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
|| h->elf.root.type != bfd_link_hash_undefweak))
+ relgot = ppc64_elf_tdata (input_bfd)->relgot;
+ else if (ifunc)
+ relgot = htab->reliplt;
+ if (relgot != NULL)
{
outrel.r_offset = (got->output_section->vma
+ got->output_offset
outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
else if (tls_type == (TLS_TLS | TLS_TPREL))
outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
- else if (indx == 0)
+ else if (indx != 0)
+ outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
+ else
{
- outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
+ if (ifunc)
+ outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
+ else
+ outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
/* Write the .got section contents for the sake
of prelink. */
bfd_put_64 (output_bfd, outrel.r_addend + relocation,
loc);
}
- else
- outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
{
addend -= sec->output_section->vma;
break;
+ case R_PPC64_REL16:
+ case R_PPC64_REL16_LO:
+ case R_PPC64_REL16_HI:
+ case R_PPC64_REL16_HA:
+ break;
+
case R_PPC64_REL14:
case R_PPC64_REL14_BRNTAKEN:
case R_PPC64_REL14_BRTAKEN:
&& h != NULL
&& h->elf.dynindx != -1
&& !h->elf.non_got_ref
- && !h->elf.def_regular))
+ && !h->elf.def_regular)
+ || (!info->shared
+ && (h != NULL
+ ? h->elf.type == STT_GNU_IFUNC
+ : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)))
{
Elf_Internal_Rela outrel;
bfd_boolean skip, relocate;
entry in this lib. */
unresolved_reloc = FALSE;
}
- outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
+ if (!is_opd
+ && r_type == R_PPC64_ADDR64
+ && (h != NULL
+ ? h->elf.type == STT_GNU_IFUNC
+ : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
+ outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
+ else
+ {
+ outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
- /* We need to relocate .opd contents for ld.so.
- Prelink also wants simple and consistent rules
- for relocs. This make all RELATIVE relocs have
- *r_offset equal to r_addend. */
- relocate = TRUE;
+ /* We need to relocate .opd contents for ld.so.
+ Prelink also wants simple and consistent rules
+ for relocs. This make all RELATIVE relocs have
+ *r_offset equal to r_addend. */
+ relocate = TRUE;
+ }
}
else
{
long indx = 0;
- if (r_symndx == 0 || bfd_is_abs_section (sec))
+ if (h != NULL
+ ? h->elf.type == STT_GNU_IFUNC
+ : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
+ {
+ (*_bfd_error_handler)
+ (_("%B(%A+0x%lx): relocation %s for indirect "
+ "function %s unsupported"),
+ input_bfd,
+ input_section,
+ (long) rel->r_offset,
+ ppc64_elf_howto_table[r_type]->name,
+ sym_name);
+ ret = FALSE;
+ }
+ else if (r_symndx == 0 || bfd_is_abs_section (sec))
;
else if (sec == NULL || sec->owner == NULL)
{
}
sreloc = elf_section_data (input_section)->sreloc;
+ if (!htab->elf.dynamic_sections_created)
+ sreloc = htab->reliplt;
if (sreloc == NULL)
abort ();
case R_PPC64_COPY:
case R_PPC64_GLOB_DAT:
case R_PPC64_JMP_SLOT:
+ case R_PPC64_JMP_IREL:
case R_PPC64_RELATIVE:
/* We shouldn't ever see these dynamic relocs in relocatable
files. */
break;
case R_PPC64_ADDR16_HA:
+ case R_PPC64_REL16_HA:
case R_PPC64_ADDR16_HIGHERA:
case R_PPC64_ADDR16_HIGHESTA:
case R_PPC64_TOC16_HA:
{
/* This symbol has an entry in the procedure linkage
table. Set it up. */
-
- if (htab->plt == NULL
- || htab->relplt == NULL
- || htab->glink == NULL)
- abort ();
-
- /* Create a JMP_SLOT reloc to inform the dynamic linker to
- fill in the PLT entry. */
- rela.r_offset = (htab->plt->output_section->vma
- + htab->plt->output_offset
- + ent->plt.offset);
- rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
- rela.r_addend = ent->addend;
-
- loc = htab->relplt->contents;
- loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
- * sizeof (Elf64_External_Rela));
+ if (!htab->elf.dynamic_sections_created
+ || h->dynindx == -1)
+ {
+ BFD_ASSERT (h->type == STT_GNU_IFUNC
+ && h->def_regular
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak));
+ rela.r_offset = (htab->iplt->output_section->vma
+ + htab->iplt->output_offset
+ + ent->plt.offset);
+ rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
+ rela.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_offset
+ + h->root.u.def.section->output_section->vma
+ + ent->addend);
+ loc = (htab->reliplt->contents
+ + (htab->reliplt->reloc_count++
+ * sizeof (Elf64_External_Rela)));
+ }
+ else
+ {
+ rela.r_offset = (htab->plt->output_section->vma
+ + htab->plt->output_offset
+ + ent->plt.offset);
+ rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
+ rela.r_addend = ent->addend;
+ loc = (htab->relplt->contents
+ + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE)
+ / (PLT_ENTRY_SIZE / sizeof (Elf64_External_Rela))));
+ }
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
}