old-cross-binutils/bfd/elfxx-sparc.h
David S. Miller d0c9aeb3fc include/
* elf/sparc.h (R_SPARC_JMP_IREL, R_SPARC_IRELATIVE): Define.

bfd/

	* reloc.c (BFD_RELOC_SPARC_JMP_IREL): New.
	(BFD_RELOC_SPARC_IRELATIVE): Likewise.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.

	* elfxx-sparc.h (_bfd_sparc_elf_link_hash_table): Add loc_hash_table
	and loc_hash_memory.
	(_bfd_sparc_elf_link_hash_table_free): Declare.
	* elf32-sparc.c (elf32_sparc_add_symbol_hook): New.
	(elf_backend_add_symbol_hook, elf_backend_post_process_headers,
	bfd_elf32_bfd_link_hash_table_free): Define.
	* elf64-sparc.c (elf64_sparc_add_symbol_hook): Set
	has_ifunc_symbols if STT_GNU_IFUNC.
	(bfd_elf64_bfd_link_hash_table_free): Define.
	(elf_backend_post_process_headers): Define always.
	* elfxx-sparc.c (sparc_jmp_irel_howto, sparc_irelative_howto): New.
	(sparc_reloc_map): Add entries for new IFUNC relocs.
	(_bfd_sparc_elf_reloc_type_lookup): Handle new IFUNC relocs.
	(_bfd_sparc_elf_info_to_howto_ptr): Likewise.
	(elf_sparc_local_htab_hash, elf_sparc_local_htab_eq,
	elf_sparc_get_local_sym_hash): New.
	(_bfd_sparc_elf_create_dynamic_sections): Move PLT ops initialization
	from here...
	(_bfd_sparc_elf_link_hash_table_create): ... to here.  Allocate
	local hash table.
	(_bfd_sparc_elf_link_hash_table_free): New.
	(create_ifunc_sections): New.
	(_bfd_sparc_elf_check_relocs): Unconditionally assign htab->elf.dynobj
	and call create_ifunc_sections().  For local STT_GNU_IFUNC symbols
	cons up a fake local hash table entry for it.  Unconditionally add
	a PLT refcount for STT_GNU_IFUNC symbols when h->def_regular.  Count
	dyn relocs for ifunc.
	(_bfd_sparc_elf_adjust_dynamic_symbol): Handle ifunc.
	(allocate_dynrelocs):  Unconditionally emit a PLT entry when STT_GNU_IFUNC
	and h->def_regular.  Count GOT dyn relocs for ifunc.
	(allocate_local_dynrelocs): New function.
	(_bfd_sparc_elf_size_dynamic_sections): Invoke it over the local hash table.
	Emit dynamic relocs to irelplt when not shared.  Treat iplt like splt.
	(_bfd_sparc_elf_relocate_section): Handle ifunc relocations by hand.
	(_bfd_sparc_elf_finish_dynamic_symbol): Adjust for non-dynamic ifunc plt
	in iplt/irelplt.

ld/testsuite/

	* ld-ifunc/ifunc.exp: Run for sparc.
2010-02-08 20:28:43 +00:00

148 lines
5 KiB
C

/* SPARC ELF specific backend routines.
Copyright 2005, 2006, 2007, 2009, 2010 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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
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., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "elf/common.h"
#include "elf/internal.h"
struct _bfd_sparc_elf_section_data
{
struct bfd_elf_section_data elf;
unsigned int do_relax, reloc_count;
};
#define sec_do_relax(sec) \
((struct _bfd_sparc_elf_section_data *) elf_section_data (sec))->do_relax
#define canon_reloc_count(sec) \
((struct _bfd_sparc_elf_section_data *) elf_section_data (sec))->reloc_count
struct _bfd_sparc_elf_app_reg
{
unsigned char bind;
unsigned short shndx;
bfd *abfd;
char *name;
};
/* Sparc ELF linker hash table. */
struct _bfd_sparc_elf_link_hash_table
{
struct elf_link_hash_table elf;
/* Short-cuts to get to dynamic linker sections. */
asection *sdynbss;
asection *srelbss;
union
{
bfd_signed_vma refcount;
bfd_vma offset;
} tls_ldm_got;
/* Small local sym cache. */
struct sym_cache sym_cache;
/* Used by local STT_GNU_IFUNC symbols. */
htab_t loc_hash_table;
void *loc_hash_memory;
/* True if the target system is VxWorks. */
int is_vxworks;
/* The (unloaded but important) .rela.plt.unloaded section, for VxWorks. */
asection *srelplt2;
void (*put_word) (bfd *, bfd_vma, void *);
bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
bfd_vma (*r_symndx) (bfd_vma);
int (*build_plt_entry) (bfd *, asection *, bfd_vma, bfd_vma, bfd_vma *);
const char *dynamic_interpreter;
int dynamic_interpreter_size;
unsigned int word_align_power;
unsigned int align_power_max;
unsigned int plt_header_size;
unsigned int plt_entry_size;
int bytes_per_word;
int bytes_per_rela;
int dtpoff_reloc;
int dtpmod_reloc;
int tpoff_reloc;
struct _bfd_sparc_elf_app_reg app_regs [4];
};
/* Get the SPARC ELF linker hash table from a link_info structure. */
#define _bfd_sparc_elf_hash_table(p) \
(elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
== SPARC_ELF_DATA ? ((struct _bfd_sparc_elf_link_hash_table *) ((p)->hash)) : NULL)
extern reloc_howto_type *_bfd_sparc_elf_reloc_type_lookup
(bfd *, bfd_reloc_code_real_type);
extern reloc_howto_type *_bfd_sparc_elf_reloc_name_lookup
(bfd *, const char *);
extern void _bfd_sparc_elf_info_to_howto
(bfd *, arelent *, Elf_Internal_Rela *);
extern reloc_howto_type *_bfd_sparc_elf_info_to_howto_ptr
(unsigned int);
extern bfd_boolean _bfd_sparc_elf_mkobject
(bfd *);
extern struct bfd_link_hash_table *_bfd_sparc_elf_link_hash_table_create
(bfd *);
extern void _bfd_sparc_elf_link_hash_table_free
(struct bfd_link_hash_table *);
extern bfd_boolean _bfd_sparc_elf_create_dynamic_sections
(bfd *, struct bfd_link_info *);
extern void _bfd_sparc_elf_copy_indirect_symbol
(struct bfd_link_info *,
struct elf_link_hash_entry *,
struct elf_link_hash_entry *);
extern bfd_boolean _bfd_sparc_elf_check_relocs
(bfd *, struct bfd_link_info *,
asection *, const Elf_Internal_Rela *);
extern asection *_bfd_sparc_elf_gc_mark_hook
(asection *, struct bfd_link_info *,
Elf_Internal_Rela *, struct elf_link_hash_entry *,
Elf_Internal_Sym *);
extern bfd_boolean _bfd_sparc_elf_gc_sweep_hook
(bfd *, struct bfd_link_info *,
asection *, const Elf_Internal_Rela *);
extern bfd_boolean _bfd_sparc_elf_adjust_dynamic_symbol
(struct bfd_link_info *, struct elf_link_hash_entry *);
extern bfd_boolean _bfd_sparc_elf_omit_section_dynsym
(bfd *, struct bfd_link_info *, asection *);
extern bfd_boolean _bfd_sparc_elf_size_dynamic_sections
(bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_sparc_elf_new_section_hook
(bfd *, asection *);
extern bfd_boolean _bfd_sparc_elf_relax_section
(bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
extern bfd_boolean _bfd_sparc_elf_relocate_section
(bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
extern bfd_boolean _bfd_sparc_elf_finish_dynamic_symbol
(bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
Elf_Internal_Sym *sym);
extern bfd_boolean _bfd_sparc_elf_finish_dynamic_sections
(bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_sparc_elf_object_p
(bfd *);
extern bfd_vma _bfd_sparc_elf_plt_sym_val
(bfd_vma, const asection *, const arelent *);