/* SuperH SH64-specific support for 64-bit ELF
- Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#define SH64_ELF64
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
#define sh64_elf64_hash_table(p) \
((struct elf_sh64_link_hash_table *) ((p)->hash))
-static bfd_boolean sh_elf64_copy_private_data
- (bfd *, bfd *);
-static bfd_boolean sh_elf64_copy_private_data_internal
- (bfd *, bfd *);
-static bfd_boolean sh_elf64_merge_private_data
- (bfd *, bfd *);
static bfd_reloc_status_type sh_elf64_ignore_reloc
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
static bfd_reloc_status_type sh_elf64_reloc
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
-static reloc_howto_type *sh_elf64_reloc_type_lookup
- (bfd *, bfd_reloc_code_real_type);
-static void sh_elf64_info_to_howto
- (bfd *, arelent *, Elf_Internal_Rela *);
-static bfd_boolean sh_elf64_relocate_section
- (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
-static bfd_byte *sh_elf64_get_relocated_section_contents
- (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
- bfd_boolean, asymbol **);
-static bfd_boolean sh_elf64_set_mach_from_flags
- (bfd *);
-static bfd_boolean sh_elf64_set_private_flags
- (bfd *, flagword);
-static asection *sh_elf64_gc_mark_hook
- (asection *, struct bfd_link_info *, Elf_Internal_Rela *,
- struct elf_link_hash_entry *, Elf_Internal_Sym *);
-static bfd_boolean sh_elf64_gc_sweep_hook
- (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
-static bfd_boolean sh_elf64_check_relocs
- (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
-static int sh64_elf64_get_symbol_type
- (Elf_Internal_Sym *, int);
-static bfd_boolean sh64_elf64_add_symbol_hook
- (bfd *, struct bfd_link_info *, Elf_Internal_Sym *, const char **,
- flagword *, asection **, bfd_vma *);
-static bfd_boolean sh64_elf64_link_output_symbol_hook
- (struct bfd_link_info *, const char *, Elf_Internal_Sym *, asection *,
- struct elf_link_hash_entry *);
-static bfd_boolean sh64_elf64_fake_sections
- (bfd *, Elf_Internal_Shdr *, asection *);
-static void sh64_elf64_final_write_processing
- (bfd *, bfd_boolean);
-static struct bfd_hash_entry *sh64_elf64_link_hash_newfunc
- (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
-static struct bfd_link_hash_table *sh64_elf64_link_hash_table_create
- (bfd *);
-inline static void movi_shori_putval
- (bfd *, unsigned long, char *);
-inline static void movi_3shori_putval
- (bfd *, bfd_vma, char *);
-static bfd_boolean sh64_elf64_create_dynamic_sections
- (bfd *, struct bfd_link_info *);
-static bfd_boolean sh64_elf64_adjust_dynamic_symbol
- (struct bfd_link_info *info, struct elf_link_hash_entry *);
-static bfd_boolean sh64_elf64_discard_copies
- (struct elf_sh64_link_hash_entry *, void *);
-static bfd_boolean sh64_elf64_size_dynamic_sections
- (bfd *, struct bfd_link_info *);
-static bfd_boolean sh64_elf64_finish_dynamic_symbol
- (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
- Elf_Internal_Sym *);
-static bfd_boolean sh64_elf64_finish_dynamic_sections
- (bfd *, struct bfd_link_info *);
static reloc_howto_type sh_elf64_howto_table[] = {
/* No relocation. */
return NULL;
}
+static reloc_howto_type *
+sh_elf64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (sh_elf64_howto_table) / sizeof (sh_elf64_howto_table[0]);
+ i++)
+ if (sh_elf64_howto_table[i].name != NULL
+ && strcasecmp (sh_elf64_howto_table[i].name, r_name) == 0)
+ return &sh_elf64_howto_table[i];
+
+ return NULL;
+}
+
/* Given an ELF reloc, fill in the howto field of a relent.
See sh_elf_info_to_howto in elf32-sh.c for the original. */
howto = sh_elf64_howto_table + r_type;
- /* This is a final link. */
h = NULL;
sym = NULL;
sec = NULL;
+ relocation = 0;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
_("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
input_bfd, input_section, rel->r_offset));
- if (info->relocatable)
+ if (sec != NULL && elf_discarded_section (sec))
+ /* Handled below. */
+ ;
+ else if (info->relocatable)
{
/* This is a relocatable link. We don't have to change
anything, unless the reloc is against a section symbol,
in which case we have to adjust according to where the
section symbol winds up in the output section. */
- sym = local_syms + r_symndx;
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
goto final_link_relocate;
{
/* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
- /* Section symbols are never (?) placed in the hash table, so
- we can just ignore hash relocations when creating a
- relocatable object file. */
- if (info->relocatable)
- continue;
-
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
&& elf_hash_table (info)->dynamic_sections_created
&& (! info->shared
|| (! info->symbolic && h->dynindx != -1)
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ || !h->def_regular))
/* The cases above are those in which relocation is
overwritten in the switch block below. The cases
below are those in which we must defer relocation
addresses when creating a shared library. */
|| (info->shared
&& ((! info->symbolic && h->dynindx != -1)
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ || !h->def_regular)
&& ((r_type == R_SH_64
&& !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
|| ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
thus ld.so will not process them. */
|| (sec->output_section == NULL
&& ((input_section->flags & SEC_DEBUGGING) != 0
- && (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_DYNAMIC) != 0)))
- relocation = 0;
- else if (sec->output_section == NULL)
- {
- (*_bfd_error_handler)
- (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
- bfd_get_filename (input_bfd), h->root.root.string,
- bfd_get_section_name (input_bfd, input_section));
- relocation = 0;
- }
- else
+ && h->def_dynamic)))
+ ;
+ else if (sec->output_section != NULL)
relocation = ((h->root.u.def.value
+ sec->output_section->vma
+ sec->output_offset)
STT_DATALABEL on the way to it. */
| ((h->other & STO_SH5_ISA32) != 0
&& ! seen_stt_datalabel));
+ else if (!info->relocatable)
+ {
+ (*_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);
+ }
}
else if (h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
+ ;
else if (info->unresolved_syms_in_objects == RM_IGNORE
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
- relocation = 0;
- else
+ ;
+ else if (!info->relocatable)
{
if (! ((*info->callbacks->undefined_symbol)
(info, h->root.root.string, input_bfd,
(info->unresolved_syms_in_objects == RM_GENERATE_ERROR
|| ELF_ST_VISIBILITY (h->other)))))
return FALSE;
- relocation = 0;
}
}
+ if (sec != NULL && elf_discarded_section (sec))
+ {
+ /* For relocs against symbols from removed linkonce sections,
+ or sections discarded by a linker script, we just want the
+ section contents zeroed. Avoid any special processing. */
+ _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
+ rel->r_info = 0;
+ rel->r_addend = 0;
+ continue;
+ }
+
+ if (info->relocatable)
+ continue;
+
disp = (relocation
- input_section->output_section->vma
- input_section->output_offset
|| (h != NULL
&& h->dynindx != -1
&& (! info->symbolic
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ || !h->def_regular))))
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
if (sreloc == NULL)
{
- const char *name;
-
- name = (bfd_elf_string_from_elf_section
- (input_bfd,
- elf_elfheader (input_bfd)->e_shstrndx,
- elf_section_data (input_section)->rel_hdr.sh_name));
- if (name == NULL)
+ sreloc = _bfd_elf_get_dynamic_reloc_section
+ (input_bfd, input_section, /*rela?*/ TRUE);
+ if (sreloc == NULL)
return FALSE;
-
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
- && strcmp (bfd_get_section_name (input_bfd,
- input_section),
- name + 5) == 0);
-
- sreloc = bfd_get_section_by_name (dynobj, name);
- BFD_ASSERT (sreloc != NULL);
}
skip = FALSE;
become local. */
if (h == NULL
|| ((info->symbolic || h->dynindx == -1)
- && (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) != 0))
+ && h->def_regular))
{
relocate = TRUE;
outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
&& (info->symbolic || h->dynindx == -1
|| ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
|| ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
+ && h->def_regular))
{
/* This is actually a static link, or it is a
-Bsymbolic link and the symbol is defined
const char *name;
if (h != NULL)
- name = h->root.root.string;
+ name = NULL;
else
{
name = (bfd_elf_string_from_elf_section
name = bfd_section_name (input_bfd, sec);
}
if (! ((*info->callbacks->reloc_overflow)
- (info, name, howto->name, (bfd_vma) 0,
- input_bfd, input_section, rel->r_offset)))
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section,
+ rel->r_offset)))
return FALSE;
}
break;
if (isymp->st_shndx == SHN_UNDEF)
isec = bfd_und_section_ptr;
- else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
- isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
else if (isymp->st_shndx == SHN_ABS)
isec = bfd_abs_section_ptr;
else if (isymp->st_shndx == SHN_COMMON)
isec = bfd_com_section_ptr;
else
- {
- /* Who knows? */
- isec = NULL;
- }
+ isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
*secpp = isec;
}
/* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
-bfd_boolean
+static bfd_boolean
sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
Elf_Internal_Shdr *elf_section_hdr,
asection *asect)
}
}
+ /* Copy object attributes. */
+ _bfd_elf_copy_obj_attributes (ibfd, obfd);
+
return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
}
static asection *
sh_elf64_gc_mark_hook (asection *sec,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info,
Elf_Internal_Rela *rel,
struct elf_link_hash_entry *h,
Elf_Internal_Sym *sym)
{
if (h != NULL)
- {
- switch (ELF64_R_TYPE (rel->r_info))
- {
- case R_SH_GNU_VTINHERIT:
- case R_SH_GNU_VTENTRY:
- break;
-
- default:
- while (h->root.type == bfd_link_hash_indirect
- && h->root.u.i.link)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
- switch (h->root.type)
- {
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- return h->root.u.def.section;
-
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
-
- default:
- break;
- }
- }
- }
- else
- return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
+ switch (ELF64_R_TYPE (rel->r_info))
+ {
+ case R_SH_GNU_VTINHERIT:
+ case R_SH_GNU_VTENTRY:
+ return NULL;
+ }
- return NULL;
-}
-
-/* Update the got entry reference counts for the section being removed. */
-
-static bfd_boolean
-sh_elf64_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- asection *sec ATTRIBUTE_UNUSED,
- const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
-{
- /* No got and plt entries for 64-bit SH at present. */
- return TRUE;
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
/* Look through the relocs for a section during the first phase.
asection *sec, const Elf_Internal_Rela *relocs)
{
Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
+ struct elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
bfd *dynobj;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
- sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym);
- if (!elf_bad_symtab (abfd))
- sym_hashes_end -= symtab_hdr->sh_info;
dynobj = elf_hash_table (info)->dynobj;
local_got_offsets = elf_local_got_offsets (abfd);
if (r_symndx < symtab_hdr->sh_info)
h = NULL;
else
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ 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;
+ }
/* Some relocs require a global offset table. */
if (dynobj == NULL)
/* This relocation describes which C++ vtable entries are actually
used. Record for later use during GC. */
case R_SH_GNU_VTENTRY:
- if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ BFD_ASSERT (h != NULL);
+ if (h != NULL
+ && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
return FALSE;
break;
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
if (srelgot == NULL)
{
- srelgot = bfd_make_section (dynobj, ".rela.got");
+ srelgot = bfd_make_section_with_flags (dynobj,
+ ".rela.got",
+ (SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED
+ | SEC_READONLY));
if (srelgot == NULL
- || ! bfd_set_section_flags (dynobj, srelgot,
- (SEC_ALLOC
- | SEC_LOAD
- | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY
- | SEC_LINKER_CREATED
- | SEC_READONLY))
|| ! bfd_set_section_alignment (dynobj, srelgot, 2))
return FALSE;
}
return FALSE;
}
- h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ h->needs_plt = 1;
break;
|| ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
break;
- h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ h->needs_plt = 1;
break;
case R_SH_64:
case R_SH_64_PCREL:
if (h != NULL)
- h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
+ h->non_got_ref = 1;
/* If we are creating a shared library, and this is a reloc
against a global symbol, or a non PC relative reloc
&& (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
|| (h != NULL
&& (! info->symbolic
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ || !h->def_regular))))
{
/* When creating a shared object, we must copy these
reloc types into the output file. We create a reloc
section in dynobj and make room for this reloc. */
if (sreloc == NULL)
{
- const char *name;
-
- name = (bfd_elf_string_from_elf_section
- (abfd,
- elf_elfheader (abfd)->e_shstrndx,
- elf_section_data (sec)->rel_hdr.sh_name));
- if (name == NULL)
- return FALSE;
-
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
- && strcmp (bfd_get_section_name (abfd, sec),
- name + 5) == 0);
+ sreloc = _bfd_elf_make_dynamic_reloc_section
+ (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
- sreloc = bfd_get_section_by_name (dynobj, name);
if (sreloc == NULL)
- {
- flagword flags;
-
- sreloc = bfd_make_section (dynobj, name);
- flags = (SEC_HAS_CONTENTS | SEC_READONLY
- | SEC_IN_MEMORY | SEC_LINKER_CREATED);
- if ((sec->flags & SEC_ALLOC) != 0)
- flags |= SEC_ALLOC | SEC_LOAD;
- if (sreloc == NULL
- || ! bfd_set_section_flags (dynobj, sreloc, flags)
- || ! bfd_set_section_alignment (dynobj, sreloc, 2))
- return FALSE;
- }
+ return FALSE;
}
sreloc->size += sizeof (Elf64_External_Rela);
}
h = (struct elf_link_hash_entry *) bh;
- h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF;
+ h->non_elf = 0;
h->type = STT_DATALABEL;
}
else
we don't need to look up and make sure to emit the main symbol for each
DataLabel symbol. */
-static bfd_boolean
+static int
sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
const char *cname,
Elf_Internal_Sym *sym,
name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
}
- return TRUE;
+ return 1;
}
/* Set bit 0 on the entry address; it always points to SHmedia code. This
if (ret == (struct elf_sh64_link_hash_table *) NULL)
return NULL;
- if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
- sh64_elf64_link_hash_newfunc))
+ if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
+ sh64_elf64_link_hash_newfunc,
+ sizeof (struct elf_sh64_link_hash_entry)))
{
free (ret);
return NULL;
}
inline static void
-movi_shori_putval (bfd *output_bfd, unsigned long value, char *addr)
+movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
{
bfd_put_32 (output_bfd,
bfd_get_32 (output_bfd, addr)
}
inline static void
-movi_3shori_putval (bfd *output_bfd, bfd_vma value, char *addr)
+movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr)
{
bfd_put_32 (output_bfd,
bfd_get_32 (output_bfd, addr)
if (bed->plt_readonly)
pltflags |= SEC_READONLY;
- s = bfd_make_section (abfd, ".plt");
+ s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
if (s == NULL
- || ! bfd_set_section_flags (abfd, s, pltflags)
|| ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
return FALSE;
return FALSE;
h = (struct elf_link_hash_entry *) bh;
- h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
+ h->def_regular = 1;
h->type = STT_OBJECT;
+ elf_hash_table (info)->hplt = h;
if (info->shared
&& ! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
- s = bfd_make_section (abfd,
- bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
+ s = bfd_make_section_with_flags (abfd,
+ bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
+ flags | SEC_READONLY);
if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, ptralign))
return FALSE;
relname = (char *) bfd_malloc (strlen (secname) + 6);
strcpy (relname, ".rela");
strcat (relname, secname);
- s = bfd_make_section (abfd, relname);
+ s = bfd_make_section_with_flags (abfd, relname,
+ flags | SEC_READONLY);
if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, ptralign))
return FALSE;
}
image and use a R_*_COPY reloc to tell the dynamic linker to
initialize them at run time. The linker script puts the .dynbss
section into the .bss section of the final image. */
- s = bfd_make_section (abfd, ".dynbss");
- if (s == NULL
- || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
+ s = bfd_make_section_with_flags (abfd, ".dynbss",
+ SEC_ALLOC | SEC_LINKER_CREATED);
+ if (s == NULL)
return FALSE;
/* The .rel[a].bss section holds copy relocs. This section is not
copy relocs. */
if (! info->shared)
{
- s = bfd_make_section (abfd,
- (bed->default_use_rela_p
- ? ".rela.bss" : ".rel.bss"));
+ s = bfd_make_section_with_flags (abfd,
+ (bed->default_use_rela_p
+ ? ".rela.bss" : ".rel.bss"),
+ flags | SEC_READONLY);
if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, ptralign))
return FALSE;
}
{
bfd *dynobj;
asection *s;
- unsigned int power_of_two;
dynobj = elf_hash_table (info)->dynobj;
/* Make sure we know what is going on here. */
BFD_ASSERT (dynobj != NULL
- && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
- || h->weakdef != NULL
- || ((h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_DYNAMIC) != 0
- && (h->elf_link_hash_flags
- & ELF_LINK_HASH_REF_REGULAR) != 0
- && (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0)));
+ && (h->needs_plt
+ || h->u.weakdef != NULL
+ || (h->def_dynamic
+ && h->ref_regular
+ && !h->def_regular)));
/* If this is a function, put it in the procedure linkage table. We
will fill in the contents of the procedure linkage table later,
when we know the address of the .got section. */
if (h->type == STT_FUNC
- || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
+ || h->needs_plt)
{
if (! info->shared
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
- && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
+ && !h->def_dynamic
+ && !h->ref_dynamic)
{
/* This case can occur if we saw a PLT reloc in an input
file, but the symbol was never referred to by a dynamic
object. In such a case, we don't actually need to build
a procedure linkage table, and we can just do a REL64
reloc instead. */
- BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
+ BFD_ASSERT (h->needs_plt);
return TRUE;
}
pointers compare as equal between the normal executable and
the shared library. */
if (! info->shared
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ && !h->def_regular)
{
h->root.u.def.section = s;
h->root.u.def.value = s->size;
/* If this is a weak symbol, and there is a real definition, the
processor independent code will have arranged for us to see the
real definition first, and we can just use the same value. */
- if (h->weakdef != NULL)
+ if (h->u.weakdef != NULL)
{
- BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
- || h->weakdef->root.type == bfd_link_hash_defweak);
- h->root.u.def.section = h->weakdef->root.u.def.section;
- h->root.u.def.value = h->weakdef->root.u.def.value;
+ BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
+ || h->u.weakdef->root.type == bfd_link_hash_defweak);
+ h->root.u.def.section = h->u.weakdef->root.u.def.section;
+ h->root.u.def.value = h->u.weakdef->root.u.def.value;
return TRUE;
}
/* If there are no references to this symbol that do not use the
GOT, we don't need to generate a copy reloc. */
- if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
+ if (!h->non_got_ref)
return TRUE;
+ if (h->size == 0)
+ {
+ (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
+ h->root.root.string);
+ return TRUE;
+ }
+
/* We must allocate the symbol in our .dynbss section, which will
become part of the .bss section of the executable. There will be
an entry for this symbol in the .dynsym section. The dynamic
srel = bfd_get_section_by_name (dynobj, ".rela.bss");
BFD_ASSERT (srel != NULL);
srel->size += sizeof (Elf64_External_Rela);
- h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
+ h->needs_copy = 1;
}
- /* We need to figure out the alignment required for this symbol. I
- have no idea how ELF linkers handle this. */
- power_of_two = bfd_log2 (h->size);
- if (power_of_two > 3)
- power_of_two = 3;
-
- /* Apply the required alignment. */
- s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
- if (power_of_two > bfd_get_section_alignment (dynobj, s))
- {
- if (! bfd_set_section_alignment (dynobj, s, power_of_two))
- return FALSE;
- }
-
- /* Define the symbol as being at this point in the section. */
- h->root.u.def.section = s;
- h->root.u.def.value = s->size;
-
- /* Increment the section size to make room for the symbol. */
- s->size += h->size;
-
- return TRUE;
+ return _bfd_elf_adjust_dynamic_copy (h, s);
}
/* This function is called via sh_elf_link_hash_traverse if we are
h = (struct elf_sh64_link_hash_entry *) h->root.root.u.i.link;
/* We only discard relocs for symbols defined in a regular object. */
- if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ if (!h->root.def_regular)
return TRUE;
for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
for (s = dynobj->sections; s != NULL; s = s->next)
{
const char *name;
- bfd_boolean strip;
if ((s->flags & SEC_LINKER_CREATED) == 0)
continue;
of the dynobj section names depend upon the input files. */
name = bfd_get_section_name (dynobj, s);
- strip = FALSE;
-
if (strcmp (name, ".plt") == 0)
{
- if (s->size == 0)
- {
- /* Strip this section if we don't need it; see the
- comment below. */
- strip = TRUE;
- }
- else
- {
- /* Remember whether there is a PLT. */
- plt = TRUE;
- }
+ /* Remember whether there is a PLT. */
+ plt = s->size != 0;
}
- else if (strncmp (name, ".rela", 5) == 0)
+ else if (CONST_STRNEQ (name, ".rela"))
{
- if (s->size == 0)
- {
- /* If we don't need this section, strip it from the
- output file. This is mostly to handle .rela.bss and
- .rela.plt. We must create both sections in
- create_dynamic_sections, because they must be created
- before the linker maps input sections to output
- sections. The linker does that before
- adjust_dynamic_symbol is called, and it is that
- function which decides whether anything needs to go
- into these sections. */
- strip = TRUE;
- }
- else
+ if (s->size != 0)
{
asection *target;
s->reloc_count = 0;
}
}
- else if (strncmp (name, ".got", 4) != 0)
+ else if (! CONST_STRNEQ (name, ".got")
+ && strcmp (name, ".dynbss") != 0)
{
/* It's not one of our sections, so don't allocate space. */
continue;
}
- if (strip)
+ if (s->size == 0)
{
- _bfd_strip_section_from_output (info, s);
+ /* If we don't need this section, strip it from the
+ output file. This is mostly to handle .rela.bss and
+ .rela.plt. We must create both sections in
+ create_dynamic_sections, because they must be created
+ before the linker maps input sections to output
+ sections. The linker does that before
+ adjust_dynamic_symbol is called, and it is that
+ function which decides whether anything needs to go
+ into these sections. */
+ s->flags |= SEC_EXCLUDE;
continue;
}
+ if ((s->flags & SEC_HAS_CONTENTS) == 0)
+ continue;
+
/* Allocate memory for the section contents. */
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
- if (s->contents == NULL && s->size != 0)
+ if (s->contents == NULL)
return FALSE;
}
loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
- if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ if (!h->def_regular)
{
/* Mark the symbol as undefined, rather than as defined in
the .plt section. Leave the value alone. */
initialized in the relocate_section function. */
if (info->shared
&& (info->symbolic || h->dynindx == -1)
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
+ && h->def_regular)
{
rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
rel.r_addend = (h->root.u.def.value
bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
}
- if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
+ if (h->needs_copy)
{
asection *s;
Elf_Internal_Rela rel;
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
- || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
+ || h == elf_hash_table (info)->hgot)
sym->st_shndx = SHN_ABS;
return TRUE;
sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
const Elf_Internal_Sym *isym,
bfd_boolean definition,
- bfd_boolean dynamic)
+ bfd_boolean dynamic ATTRIBUTE_UNUSED)
{
- if (isym->st_other != 0 && dynamic)
+ if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0)
{
unsigned char other;
return;
}
-static struct bfd_elf_special_section const sh64_elf64_special_sections[]=
+static const struct bfd_elf_special_section sh64_elf64_special_sections[]=
{
- { ".cranges", 8, 0, SHT_PROGBITS, 0 },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 },
+ { NULL, 0, 0, 0, 0 }
};
#define TARGET_BIG_SYM bfd_elf64_sh64_vec
#define elf_symbol_leading_char '_'
#define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
+#define bfd_elf64_bfd_reloc_name_lookup \
+ sh_elf64_reloc_name_lookup
#define elf_info_to_howto sh_elf64_info_to_howto
/* Note: there's no relaxation at present. */
#define elf_backend_fake_sections sh64_elf64_fake_sections
#define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
-#define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook
#define elf_backend_check_relocs sh_elf64_check_relocs
#define elf_backend_can_gc_sections 1
sh64_elf64_adjust_dynamic_symbol
#define elf_backend_size_dynamic_sections \
sh64_elf64_size_dynamic_sections
+#define elf_backend_omit_section_dynsym \
+ ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
#define elf_backend_finish_dynamic_symbol \
sh64_elf64_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
#define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec
#undef TARGET_LITTLE_NAME
#define TARGET_LITTLE_NAME "elf64-sh64-linux"
+#undef elf64_bed
+#define elf64_bed elf64_sh64_linux_bed
-#define INCLUDED_TARGET_FILE
#include "elf64-target.h"
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