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old-cross-binutils/bfd/elf32-target.h
Jeff Law ff5a090fb4 * Support code for enabling the new style linker for PA ELF. 
* elfcode.h (swap_symbol_in, swap_symbol_out): Externalize.
	(elf_compute_section_file_positions): Pass link_info to
	the begin_write_processing hook.
	(bfd_elf_write_object_contents): Pass NULL for new link_info
	argument to final_write_processing hook.
	(elf_link_output_sym): Accept new "input_section" argument for
	the symbols's input section.  All callers changed.  Call the
	link_output_symbol_hook if it's defined.
	(elf_bfd_final_link): Call the final_write_processing hook if
	it's defined.
	* libelf.h (elf_backend_link_output_symbol_hook): Declare.
	(elf_backend_begin_write_processing): Add new "info" argument.
	(elf_backend_final_write_processing): Likewise.
	* elf32-target.h (elf_backend_link_output_symbol_hook): Provide
	a default definition.
	(elf32_bed): Add elf_backend_link_output_symbol_hook.
	* elf64-target.h: Likewise.

	* Major rework of the PA ELF code.  Uses the new style BFD
	linker, major cleanups.
	* hppa_stubs.h: Rewrite from scratch.  Much smaller and simpler.
	* elf32-hppa.h: Delete all symbol extension related code.
	(hppa_look_for_stubs_in_section): Delete decl.
	(elf32_hppa_size_stubs, elf32_hppa_build_stubs): New decls.
	* elf32-hppa.c: Symbol extension stuff moved form elf32-hppa.h
	into elf32-hppa.c.  Do not include aout64.h.
	(typdef hppa_stub_type): Delete.
	(elf32_hppa_stub_name_list_struct): Delete.
	(elf32_hppa_stub_description_struct): Delete.
	(arg_reloc_type): Use simpler enumerations.  All references changed.
	(arg_location, arg_reloc_relocation): Likewise.
	(elf32_hppa_symextn_map_struct): Delete.
	(get_symbol_value): Delete.
	(elf32_hppa_get_sym_extn): Delete.
	(find_stubs, new_stubs, type_of_mismatch): Delete.
	(find_stub_by_name, add_stub_by_name): Delete.
	(hppa_elf_stub_finish, hppa_elf_stub_reloc): Delete.
	(hppa_elf_arg_reloc_needed): Renamed.  Simplify.
	(hppa_elf_build_linker_stub, hppa_elf_create_stub_sec): Delete.
	(hppa_elf_long_branch_needed_p): Delete.
	(hppa_look_for_stubs_in_section): Delete.
	(hppa_elf_get_section_contents): Delete.
	(elf32_hppa_backend_symbol_processing): Delete.
	(elf32_hppa_backend_section_processing): Delete.
	(elf32_hppa_backend_section_from_shdr): Delete.
	(elf32_hppa_backend_fake_sections): Delete.
	(elf32_hppa_backend_section_from_bfd_section): Delete.
	(NEW_INSTRUCTION): Delete.
	(CURRENT_STUB_OFFSET): Delete.
	(elf32_hppa_relocate_section): New function.
	(elf32_hppa_bfd_final_link_relocate): New function.
	(elf32_hppa_size_symext): New function.
	(elf32_hppa_link_output_symbol_hook): New function.
	(elf32_hppa_read_symext_info): New function.
	(elf32_hppa_add_symbol_hook): New function.
	(elf32_hppa_name_of_stub): New function.
	(elf32_hppa_size_of_stub): New function.
	(elf32_hppa_build_one_sub): New function.
	(elf32_hppa_build_stubs): New function.
	(elf32_hppa_size_stubs): New function.
	(linker, stub and argument hash tables): Add appropriate
	structures, definitions and functions to implement all three
	hash tables.
	(hppa_elf_relocate_insn): Don't need argument location information
	in this function.
	(add_entry_to_symext_chain): Accept a symbol's argument location
	information rather than the symbol itself.  All callers changed.
	(hppa_elf_gen_reloc_type): Simplify.
	(hppa_elf_set_section_contents): Stub section is no longer special.
	(hppa_elf_reloc): Greatly simplify.
	(elf32_hppa_begin_write_processing): Accept link_info argument.
	Handle being called from the BFD backend linker.
	(elf32_hppa_final_write_processing): Likewise.
	(elf_hppa_tc_make_sections): No longer call stub_finish.
1994-07-01 19:00:17 +00:00

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/* Target definitions for 32-bit ELF
Copyright 1993, 1994 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
(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., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* This structure contains everything that BFD knows about a target.
It includes things like its byte order, name, what routines to call
to do various operations, etc. Every BFD points to a target structure
with its "xvec" member.
There are two such structures here: one for big-endian machines and
one for little-endian machines. */
#define bfd_elf32_close_and_cleanup _bfd_generic_close_and_cleanup
#define bfd_elf32_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#ifndef bfd_elf32_get_section_contents
#define bfd_elf32_get_section_contents _bfd_generic_get_section_contents
#endif
#define bfd_elf32_bfd_get_relocated_section_contents \
bfd_generic_get_relocated_section_contents
#define bfd_elf32_bfd_relax_section bfd_generic_relax_section
#define bfd_elf32_bfd_make_debug_symbol \
((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
#ifndef bfd_elf32_bfd_copy_private_section_data
#define bfd_elf32_bfd_copy_private_section_data \
((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_true)
#endif
#ifndef bfd_elf32_bfd_copy_private_bfd_data
#define bfd_elf32_bfd_copy_private_bfd_data \
((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
#endif
#ifndef bfd_elf32_bfd_is_local_label
#define bfd_elf32_bfd_is_local_label bfd_generic_is_local_label
#endif
#ifndef bfd_elf32_get_dynamic_reloc_upper_bound
#define bfd_elf32_get_dynamic_reloc_upper_bound \
_bfd_nodynamic_get_dynamic_reloc_upper_bound
#endif
#ifndef bfd_elf32_canonicalize_dynamic_reloc
#define bfd_elf32_canonicalize_dynamic_reloc \
_bfd_nodynamic_canonicalize_dynamic_reloc
#endif
#ifdef elf_backend_relocate_section
#ifndef bfd_elf32_bfd_link_hash_table_create
#define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
#endif
#else /* ! defined (elf_backend_relocate_section) */
/* If no backend relocate_section routine, use the generic linker. */
#ifndef bfd_elf32_bfd_link_hash_table_create
#define bfd_elf32_bfd_link_hash_table_create \
_bfd_generic_link_hash_table_create
#endif
#ifndef bfd_elf32_bfd_link_add_symbols
#define bfd_elf32_bfd_link_add_symbols _bfd_generic_link_add_symbols
#endif
#ifndef bfd_elf32_bfd_final_link
#define bfd_elf32_bfd_final_link _bfd_generic_final_link
#endif
#endif /* ! defined (elf_backend_relocate_section) */
#ifndef elf_info_to_howto_rel
#define elf_info_to_howto_rel 0
#endif
#ifndef ELF_MAXPAGESIZE
#define ELF_MAXPAGESIZE 1
#endif
#ifndef elf_backend_collect
#define elf_backend_collect false
#endif
#ifndef elf_backend_sym_is_global
#define elf_backend_sym_is_global 0
#endif
#ifndef elf_backend_object_p
#define elf_backend_object_p 0
#endif
#ifndef elf_backend_symbol_processing
#define elf_backend_symbol_processing 0
#endif
#ifndef elf_backend_symbol_table_processing
#define elf_backend_symbol_table_processing 0
#endif
#ifndef elf_backend_section_processing
#define elf_backend_section_processing 0
#endif
#ifndef elf_backend_section_from_shdr
#define elf_backend_section_from_shdr 0
#endif
#ifndef elf_backend_fake_sections
#define elf_backend_fake_sections 0
#endif
#ifndef elf_backend_section_from_bfd_section
#define elf_backend_section_from_bfd_section 0
#endif
#ifndef elf_backend_add_symbol_hook
#define elf_backend_add_symbol_hook 0
#endif
#ifndef elf_backend_link_output_symbol_hook
#define elf_backend_link_output_symbol_hook 0
#endif
#ifndef elf_backend_create_dynamic_sections
#define elf_backend_create_dynamic_sections 0
#endif
#ifndef elf_backend_adjust_dynamic_symbol
#define elf_backend_adjust_dynamic_symbol 0
#endif
#ifndef elf_backend_size_dynamic_sections
#define elf_backend_size_dynamic_sections 0
#endif
#ifndef elf_backend_relocate_section
#define elf_backend_relocate_section 0
#endif
#ifndef elf_backend_finish_dynamic_symbol
#define elf_backend_finish_dynamic_symbol 0
#endif
#ifndef elf_backend_finish_dynamic_sections
#define elf_backend_finish_dynamic_sections 0
#endif
#ifndef elf_backend_begin_write_processing
#define elf_backend_begin_write_processing 0
#endif
#ifndef elf_backend_final_write_processing
#define elf_backend_final_write_processing 0
#endif
#ifndef elf_backend_ecoff_debug_swap
#define elf_backend_ecoff_debug_swap 0
#endif
static CONST struct elf_backend_data elf32_bed =
{
#ifdef USE_REL
0, /* use_rela_p */
#else
1, /* use_rela_p */
#endif
0, /* elf_64_p */
ELF_ARCH, /* arch */
ELF_MACHINE_CODE, /* elf_machine_code */
ELF_MAXPAGESIZE, /* maxpagesize */
elf_backend_collect,
elf_info_to_howto,
elf_info_to_howto_rel,
elf_backend_sym_is_global,
elf_backend_object_p,
elf_backend_symbol_processing,
elf_backend_symbol_table_processing,
elf_backend_section_processing,
elf_backend_section_from_shdr,
elf_backend_fake_sections,
elf_backend_section_from_bfd_section,
elf_backend_add_symbol_hook,
elf_backend_link_output_symbol_hook,
elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_relocate_section,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections,
elf_backend_begin_write_processing,
elf_backend_final_write_processing,
elf_backend_ecoff_debug_swap
};
#ifdef TARGET_BIG_SYM
const bfd_target TARGET_BIG_SYM =
{
/* name: identify kind of target */
TARGET_BIG_NAME,
/* flavour: general indication about file */
bfd_target_elf_flavour,
/* byteorder_big_p: data is big endian */
true,
/* header_byteorder_big_p: header is also big endian */
true,
/* object_flags: mask of all file flags */
(HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
DYNAMIC | WP_TEXT | D_PAGED),
/* section_flags: mask of all section flags */
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
SEC_CODE | SEC_DATA | SEC_DEBUGGING),
/* leading_symbol_char: is the first char of a user symbol
predictable, and if so what is it */
0,
/* ar_pad_char: pad character for filenames within an archive header
FIXME: this really has nothing to do with ELF, this is a characteristic
of the archiver and/or os and should be independently tunable */
'/',
/* ar_max_namelen: maximum number of characters in an archive header
FIXME: this really has nothing to do with ELF, this is a characteristic
of the archiver and should be independently tunable. This value is
a WAG (wild a** guess) */
14,
/* align_power_min: minimum alignment restriction for any section
FIXME: this value may be target machine dependent */
3,
/* Routines to byte-swap various sized integers from the data sections */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16,
/* Routines to byte-swap various sized integers from the file headers */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16,
/* bfd_check_format: check the format of a file being read */
{ _bfd_dummy_target, /* unknown format */
bfd_elf32_object_p, /* assembler/linker output (object file) */
bfd_generic_archive_p, /* an archive */
bfd_elf32_core_file_p /* a core file */
},
/* bfd_set_format: set the format of a file being written */
{ bfd_false,
bfd_elf_mkobject,
_bfd_generic_mkarchive,
bfd_false
},
/* bfd_write_contents: write cached information into a file being written */
{ bfd_false,
bfd_elf32_write_object_contents,
_bfd_write_archive_contents,
bfd_false
},
BFD_JUMP_TABLE_GENERIC (bfd_elf32),
BFD_JUMP_TABLE_COPY (bfd_elf32),
BFD_JUMP_TABLE_CORE (bfd_elf32),
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
BFD_JUMP_TABLE_SYMBOLS (bfd_elf32),
BFD_JUMP_TABLE_RELOCS (bfd_elf32),
BFD_JUMP_TABLE_WRITE (bfd_elf32),
BFD_JUMP_TABLE_LINK (bfd_elf32),
BFD_JUMP_TABLE_DYNAMIC (bfd_elf32),
/* backend_data: */
(PTR) &elf32_bed,
};
#endif
#ifdef TARGET_LITTLE_SYM
const bfd_target TARGET_LITTLE_SYM =
{
/* name: identify kind of target */
TARGET_LITTLE_NAME,
/* flavour: general indication about file */
bfd_target_elf_flavour,
/* byteorder_big_p: data is big endian */
false, /* Nope -- this one's little endian */
/* header_byteorder_big_p: header is also big endian */
false, /* Nope -- this one's little endian */
/* object_flags: mask of all file flags */
(HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
DYNAMIC | WP_TEXT | D_PAGED),
/* section_flags: mask of all section flags */
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
SEC_CODE | SEC_DATA | SEC_DEBUGGING),
/* leading_symbol_char: is the first char of a user symbol
predictable, and if so what is it */
0,
/* ar_pad_char: pad character for filenames within an archive header
FIXME: this really has nothing to do with ELF, this is a characteristic
of the archiver and/or os and should be independently tunable */
'/',
/* ar_max_namelen: maximum number of characters in an archive header
FIXME: this really has nothing to do with ELF, this is a characteristic
of the archiver and should be independently tunable. This value is
a WAG (wild a** guess) */
14,
/* align_power_min: minimum alignment restriction for any section
FIXME: this value may be target machine dependent */
3,
/* Routines to byte-swap various sized integers from the data sections */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
/* Routines to byte-swap various sized integers from the file headers */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
/* bfd_check_format: check the format of a file being read */
{ _bfd_dummy_target, /* unknown format */
bfd_elf32_object_p, /* assembler/linker output (object file) */
bfd_generic_archive_p, /* an archive */
bfd_elf32_core_file_p /* a core file */
},
/* bfd_set_format: set the format of a file being written */
{ bfd_false,
bfd_elf_mkobject,
_bfd_generic_mkarchive,
bfd_false
},
/* bfd_write_contents: write cached information into a file being written */
{ bfd_false,
bfd_elf32_write_object_contents,
_bfd_write_archive_contents,
bfd_false
},
BFD_JUMP_TABLE_GENERIC (bfd_elf32),
BFD_JUMP_TABLE_COPY (bfd_elf32),
BFD_JUMP_TABLE_CORE (bfd_elf32),
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
BFD_JUMP_TABLE_SYMBOLS (bfd_elf32),
BFD_JUMP_TABLE_RELOCS (bfd_elf32),
BFD_JUMP_TABLE_WRITE (bfd_elf32),
BFD_JUMP_TABLE_LINK (bfd_elf32),
BFD_JUMP_TABLE_DYNAMIC (bfd_elf32),
/* backend_data: */
(PTR) &elf32_bed,
};
#endif
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