}
else
{
- prpsinfo_t data;
+ prpsinfo64_t data;
memset (&data, 0, sizeof (data));
strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
}
else
{
- prstatus_t prstat;
+ prstatus64_t prstat;
memset (&prstat, 0, sizeof (prstat));
prstat.pr_pid = pid;
prstat.pr_cursig = cursig;
if (htab == NULL)
return FALSE;
- htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
+ htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
if (!info->shared)
- htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
+ htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
if (!htab->sdynbss
|| (!info->shared && !htab->srelbss))
abort ();
if (!info->no_ld_generated_unwind_info
- && bfd_get_section_by_name (dynobj, ".eh_frame") == NULL
+ && htab->plt_eh_frame == NULL
&& htab->elf.splt != NULL)
{
- const struct elf_x86_64_backend_data *const abed
- = get_elf_x86_64_backend_data (dynobj);
- flagword flags = get_elf_backend_data (dynobj)->dynamic_sec_flags;
+ flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
+ | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED);
htab->plt_eh_frame
- = bfd_make_section_with_flags (dynobj, ".eh_frame",
- flags | SEC_READONLY);
+ = bfd_make_section_anyway_with_flags (dynobj, ".eh_frame", flags);
if (htab->plt_eh_frame == NULL
|| !bfd_set_section_alignment (dynobj, htab->plt_eh_frame, 3))
return FALSE;
-
- htab->plt_eh_frame->size = abed->eh_frame_plt_size;
- htab->plt_eh_frame->contents
- = bfd_alloc (dynobj, htab->plt_eh_frame->size);
- memcpy (htab->plt_eh_frame->contents,
- abed->eh_frame_plt, abed->eh_frame_plt_size);
}
return TRUE;
}
break;
}
- /* Since STT_GNU_IFUNC symbol must go through PLT, we handle
- it here if it is defined in a non-shared object. */
- if (h->type == STT_GNU_IFUNC
- && h->def_regular)
- {
- /* It is referenced by a non-shared object. */
- h->ref_regular = 1;
- h->needs_plt = 1;
-
- /* STT_GNU_IFUNC symbol must go through PLT. */
- h->plt.refcount += 1;
-
- /* STT_GNU_IFUNC needs dynamic sections. */
- if (htab->elf.dynobj == NULL)
- htab->elf.dynobj = abfd;
-
- switch (r_type)
- {
- default:
- if (h->root.root.string)
- name = h->root.root.string;
- else
- name = bfd_elf_sym_name (abfd, symtab_hdr, isym,
- NULL);
- (*_bfd_error_handler)
- (_("%B: relocation %s against STT_GNU_IFUNC "
- "symbol `%s' isn't handled by %s"), abfd,
- x86_64_elf_howto_table[r_type].name,
- name, __FUNCTION__);
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
-
- case R_X86_64_32:
- if (ABI_64_P (abfd))
- goto not_pointer;
- case R_X86_64_64:
- h->non_got_ref = 1;
- h->pointer_equality_needed = 1;
- if (info->shared)
- {
- /* We must copy these reloc types into the output
- file. Create a reloc section in dynobj and
- make room for this reloc. */
- sreloc = _bfd_elf_create_ifunc_dyn_reloc
- (abfd, info, sec, sreloc,
- &((struct elf_x86_64_link_hash_entry *) h)->dyn_relocs);
- if (sreloc == NULL)
- return FALSE;
- }
- break;
-
- case R_X86_64_32S:
- case R_X86_64_PC32:
- case R_X86_64_PC64:
-not_pointer:
- h->non_got_ref = 1;
- if (r_type != R_X86_64_PC32
- && r_type != R_X86_64_PC64)
- h->pointer_equality_needed = 1;
- break;
-
- case R_X86_64_PLT32:
- break;
-
- case R_X86_64_GOTPCREL:
- case R_X86_64_GOTPCREL64:
- h->got.refcount += 1;
- if (htab->elf.sgot == NULL
- && !_bfd_elf_create_got_section (htab->elf.dynobj,
- info))
- return FALSE;
- break;
- }
-
- continue;
- }
+ /* It is referenced by a non-shared object. */
+ h->ref_regular = 1;
}
if (! elf_x86_64_tls_transition (info, abfd, sec, NULL,
{
struct elf_x86_64_link_hash_table *htab;
asection *s;
+ struct elf_x86_64_link_hash_entry *eh;
+ struct elf_dyn_relocs *p;
/* STT_GNU_IFUNC symbol must go through PLT. */
if (h->type == STT_GNU_IFUNC)
{
+ /* All local STT_GNU_IFUNC references must be treate as local
+ calls via local PLT. */
+ if (h->ref_regular
+ && SYMBOL_CALLS_LOCAL (info, h))
+ {
+ bfd_size_type pc_count = 0, count = 0;
+ struct elf_dyn_relocs **pp;
+
+ eh = (struct elf_x86_64_link_hash_entry *) h;
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
+ {
+ pc_count += p->pc_count;
+ p->count -= p->pc_count;
+ p->pc_count = 0;
+ count += p->count;
+ if (p->count == 0)
+ *pp = p->next;
+ else
+ pp = &p->next;
+ }
+
+ if (pc_count || count)
+ {
+ h->needs_plt = 1;
+ h->plt.refcount += 1;
+ h->non_got_ref = 1;
+ }
+ }
+
if (h->plt.refcount <= 0)
{
h->plt.offset = (bfd_vma) -1;
if (ELIMINATE_COPY_RELOCS)
{
- struct elf_x86_64_link_hash_entry * eh;
- struct elf_dyn_relocs *p;
-
eh = (struct elf_x86_64_link_hash_entry *) h;
for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
return TRUE;
}
+/* Convert
+ mov foo@GOTPCREL(%rip), %reg
+ to
+ lea foo(%rip), %reg
+ with the local symbol, foo. */
+
+static bfd_boolean
+elf_x86_64_convert_mov_to_lea (bfd *abfd, asection *sec,
+ struct bfd_link_info *link_info)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Rela *internal_relocs;
+ Elf_Internal_Rela *irel, *irelend;
+ bfd_byte *contents;
+ struct elf_x86_64_link_hash_table *htab;
+ bfd_boolean changed_contents;
+ bfd_boolean changed_relocs;
+ bfd_signed_vma *local_got_refcounts;
+
+ /* Don't even try to convert non-ELF outputs. */
+ if (!is_elf_hash_table (link_info->hash))
+ return FALSE;
+
+ /* Nothing to do if there are no codes, no relocations or no output. */
+ if ((sec->flags & (SEC_CODE | SEC_RELOC)) != (SEC_CODE | SEC_RELOC)
+ || sec->reloc_count == 0
+ || discarded_section (sec))
+ return TRUE;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+
+ /* Load the relocations for this section. */
+ internal_relocs = (_bfd_elf_link_read_relocs
+ (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
+ link_info->keep_memory));
+ if (internal_relocs == NULL)
+ return FALSE;
+
+ htab = elf_x86_64_hash_table (link_info);
+ changed_contents = FALSE;
+ changed_relocs = FALSE;
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+
+ /* 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))
+ goto error_return;
+ }
+
+ irelend = internal_relocs + sec->reloc_count;
+ for (irel = internal_relocs; irel < irelend; irel++)
+ {
+ unsigned int r_type = ELF32_R_TYPE (irel->r_info);
+ unsigned int r_symndx = htab->r_sym (irel->r_info);
+ unsigned int indx;
+ struct elf_link_hash_entry *h;
+
+ if (r_type != R_X86_64_GOTPCREL)
+ continue;
+
+ /* Get the symbol referred to by the reloc. */
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ Elf_Internal_Sym *isym;
+
+ isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ abfd, r_symndx);
+
+ /* STT_GNU_IFUNC must keep R_X86_64_GOTPCREL relocation. */
+ if (ELF_ST_TYPE (isym->st_info) != STT_GNU_IFUNC
+ && bfd_get_8 (input_bfd,
+ contents + irel->r_offset - 2) == 0x8b)
+ {
+ bfd_put_8 (output_bfd, 0x8d,
+ contents + irel->r_offset - 2);
+ irel->r_info = htab->r_info (r_symndx, R_X86_64_PC32);
+ if (local_got_refcounts != NULL
+ && local_got_refcounts[r_symndx] > 0)
+ local_got_refcounts[r_symndx] -= 1;
+ changed_contents = TRUE;
+ changed_relocs = TRUE;
+ }
+ continue;
+ }
+
+ indx = r_symndx - symtab_hdr->sh_info;
+ h = elf_sym_hashes (abfd)[indx];
+ BFD_ASSERT (h != NULL);
+
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ /* STT_GNU_IFUNC must keep R_X86_64_GOTPCREL relocation. We also
+ avoid optimizing _DYNAMIC since ld.so may use its link-time
+ address. */
+ if (h->def_regular
+ && h->type != STT_GNU_IFUNC
+ && h != htab->elf.hdynamic
+ && SYMBOL_REFERENCES_LOCAL (link_info, h)
+ && bfd_get_8 (input_bfd,
+ contents + irel->r_offset - 2) == 0x8b)
+ {
+ bfd_put_8 (output_bfd, 0x8d,
+ contents + irel->r_offset - 2);
+ irel->r_info = htab->r_info (r_symndx, R_X86_64_PC32);
+ if (h->got.refcount > 0)
+ h->got.refcount -= 1;
+ changed_contents = TRUE;
+ changed_relocs = TRUE;
+ }
+ }
+
+ if (contents != NULL
+ && elf_section_data (sec)->this_hdr.contents != contents)
+ {
+ if (!changed_contents && !link_info->keep_memory)
+ free (contents);
+ else
+ {
+ /* Cache the section contents for elf_link_input_bfd. */
+ elf_section_data (sec)->this_hdr.contents = contents;
+ }
+ }
+
+ if (elf_section_data (sec)->relocs != internal_relocs)
+ {
+ if (!changed_relocs)
+ free (internal_relocs);
+ else
+ elf_section_data (sec)->relocs = internal_relocs;
+ }
+
+ return TRUE;
+
+ error_return:
+ if (contents != NULL
+ && elf_section_data (sec)->this_hdr.contents != contents)
+ free (contents);
+ if (internal_relocs != NULL
+ && elf_section_data (sec)->relocs != internal_relocs)
+ free (internal_relocs);
+ return FALSE;
+}
+
/* Set the sizes of the dynamic sections. */
static bfd_boolean
/* Set the contents of the .interp section to the interpreter. */
if (info->executable)
{
- s = bfd_get_section_by_name (dynobj, ".interp");
+ s = bfd_get_linker_section (dynobj, ".interp");
if (s == NULL)
abort ();
s->size = htab->dynamic_interpreter_size;
{
struct elf_dyn_relocs *p;
+ if (!elf_x86_64_convert_mov_to_lea (ibfd, s, info))
+ return FALSE;
+
for (p = (struct elf_dyn_relocs *)
(elf_section_data (s)->local_dynrel);
p != NULL;
if (htab->elf.sgotplt)
{
- struct elf_link_hash_entry *got;
- got = elf_link_hash_lookup (elf_hash_table (info),
- "_GLOBAL_OFFSET_TABLE_",
- FALSE, FALSE, FALSE);
-
/* Don't allocate .got.plt section if there are no GOT nor PLT
entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
- if ((got == NULL
- || !got->ref_regular_nonweak)
+ if ((htab->elf.hgot == NULL
+ || !htab->elf.hgot->ref_regular_nonweak)
&& (htab->elf.sgotplt->size
== get_elf_backend_data (output_bfd)->got_header_size)
&& (htab->elf.splt == NULL
htab->elf.sgotplt->size = 0;
}
+ if (htab->plt_eh_frame != NULL
+ && htab->elf.splt != NULL
+ && htab->elf.splt->size != 0
+ && !bfd_is_abs_section (htab->elf.splt->output_section)
+ && _bfd_elf_eh_frame_present (info))
+ {
+ const struct elf_x86_64_backend_data *arch_data
+ = (const struct elf_x86_64_backend_data *) bed->arch_data;
+ htab->plt_eh_frame->size = arch_data->eh_frame_plt_size;
+ }
+
/* We now have determined the sizes of the various dynamic sections.
Allocate memory for them. */
relocs = FALSE;
|| s == htab->elf.sgotplt
|| s == htab->elf.iplt
|| s == htab->elf.igotplt
+ || s == htab->plt_eh_frame
|| s == htab->sdynbss)
{
/* Strip this section if we don't need it; see the
}
if (htab->plt_eh_frame != NULL
- && htab->elf.splt != NULL
- && htab->elf.splt->size != 0
- && (htab->elf.splt->flags & SEC_EXCLUDE) == 0)
- bfd_put_32 (dynobj, htab->elf.splt->size,
- htab->plt_eh_frame->contents + PLT_FDE_LEN_OFFSET);
+ && htab->plt_eh_frame->contents != NULL)
+ {
+ const struct elf_x86_64_backend_data *arch_data
+ = (const struct elf_x86_64_backend_data *) bed->arch_data;
+
+ memcpy (htab->plt_eh_frame->contents,
+ arch_data->eh_frame_plt, htab->plt_eh_frame->size);
+ bfd_put_32 (dynobj, htab->elf.splt->size,
+ htab->plt_eh_frame->contents + PLT_FDE_LEN_OFFSET);
+ }
if (htab->elf.dynamic_sections_created)
{
!= (rel->r_addend & 0x80000000))
{
const char *name;
+ int addend = rel->r_addend;
if (h && h->root.root.string)
name = h->root.root.string;
else
name = bfd_elf_sym_name (input_bfd, symtab_hdr,
sym, NULL);
- (*_bfd_error_handler)
- (_("%B: addend %ld in relocation %s against "
- "symbol `%s' at 0x%lx in section `%A' is "
- "out of range"),
- input_bfd, input_section,
- (long) rel->r_addend,
- x86_64_elf_howto_table[r_type].name,
- name, (unsigned long) rel->r_offset);
+ if (addend < 0)
+ (*_bfd_error_handler)
+ (_("%B: addend -0x%x in relocation %s against "
+ "symbol `%s' at 0x%lx in section `%A' is "
+ "out of range"),
+ input_bfd, input_section, addend,
+ x86_64_elf_howto_table[r_type].name,
+ name, (unsigned long) rel->r_offset);
+ else
+ (*_bfd_error_handler)
+ (_("%B: addend 0x%x in relocation %s against "
+ "symbol `%s' at 0x%lx in section `%A' is "
+ "out of range"),
+ input_bfd, input_section, addend,
+ x86_64_elf_howto_table[r_type].name,
+ name, (unsigned long) rel->r_offset);
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
&& h->def_dynamic)
&& _bfd_elf_section_offset (output_bfd, info, input_section,
rel->r_offset) != (bfd_vma) -1)
- (*_bfd_error_handler)
- (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
- input_bfd,
- input_section,
- (long) rel->r_offset,
- howto->name,
- h->root.root.string);
+ {
+ (*_bfd_error_handler)
+ (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
+ input_bfd,
+ input_section,
+ (long) rel->r_offset,
+ howto->name,
+ h->root.root.string);
+ return FALSE;
+ }
do_relocation:
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
elf_x86_64_finish_dynamic_symbol (bfd *output_bfd,
struct bfd_link_info *info,
struct elf_link_hash_entry *h,
- Elf_Internal_Sym *sym)
+ Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
{
struct elf_x86_64_link_hash_table *htab;
const struct elf_x86_64_backend_data *const abed
|| plt == NULL
|| gotplt == NULL
|| relplt == NULL)
- return FALSE;
+ abort ();
/* Get the index in the procedure linkage table which
corresponds to this symbol. This is the index of this symbol
elf_append_rela (output_bfd, htab->srelbss, &rela);
}
- /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. SYM may
- be NULL for local symbols. */
- if (sym != NULL
- && (strcmp (h->root.root.string, "_DYNAMIC") == 0
- || h == htab->elf.hgot))
- sym->st_shndx = SHN_ABS;
-
return TRUE;
}
switch ((int) ELF32_R_TYPE (rela->r_info))
{
case R_X86_64_RELATIVE:
+ case R_X86_64_RELATIVE64:
return reloc_class_relative;
case R_X86_64_JUMP_SLOT:
return reloc_class_plt;
return FALSE;
dynobj = htab->elf.dynobj;
- sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+ sdyn = bfd_get_linker_section (dynobj, ".dynamic");
if (htab->elf.dynamic_sections_created)
{
}
/* Adjust .eh_frame for .plt section. */
- if (htab->plt_eh_frame != NULL)
+ if (htab->plt_eh_frame != NULL
+ && htab->plt_eh_frame->contents != NULL)
{
if (htab->elf.splt != NULL
&& htab->elf.splt->size != 0
projects / deliverable / binutils-gdb.git / blobdiff