Generic object attributes patch

[Nick Clifton]

Hi Joseph,

> Tested with cross to arm-none-eabi.  OK to commit?

Please could you test a couple more targets first, just to be safe - an 
x86 linux target and maybe a COFF based target.  Just to make sure that 
there are no gotchas.  Assuming that those tests pass then this patch is 
approved.

Cheers
   Nick

> bfd:
> 2007-06-26  Joseph Myers  <joseph@codesourcery.com>
> 
> 	* elf-attrs.c: New.
> 	* Makefile.am (BFD32_BACKENDS): Add elf-attrs.lo.
> 	(BFD32_BACKENDS_CFILES): Add elf-attrs.c.
> 	(elf-attrs.lo): Generate dependencies.
> 	* Makefile.in: Regenerate.
> 	* configure.in (elf): Add elf-attrs.lo.
> 	* configure: Regenerate.
> 	* elf-bfd.h (struct elf_backend_data): Add entries for object
> 	attributes.
> 	(NUM_KNOWN_OBJ_ATTRIBUTES, obj_attribute, obj_attribute_list,
> 	OBJ_ATTR_PROC, OBJ_ATTR_GNU, OBJ_ATTR_FIRST, OBJ_ATTR_LAST,
> 	Tag_NULL, Tag_File, Tag_Section, Tag_Symbol, Tag_compatibility):
> 	New.
> 	(struct elf_obj_tdata): Add entries for object attributes.
> 	(elf_known_obj_attributes, elf_other_obj_attributes,
> 	elf_known_obj_attributes_proc, elf_other_obj_attributes_proc):
> 	New.
> 	(bfd_elf_obj_attr_size, bfd_elf_set_obj_attr_contents,
> 	bfd_elf_get_obj_attr_int, bfd_elf_add_obj_attr_int,
> 	bfd_elf_add_proc_attr_int, bfd_elf_add_obj_attr_string,
> 	bfd_elf_add_proc_attr_string, bfd_elf_add_obj_attr_compat,
> 	bfd_elf_add_proc_attr_compat, _bfd_elf_attr_strdup,
> 	_bfd_elf_copy_obj_attributes, _bfd_elf_obj_attrs_arg_type,
> 	_bfd_elf_parse_attributes, _bfd_elf_merge_object_attributes): New.
> 	* elf.c (_bfd_elf_copy_private_bfd_data): Copy object attributes.
> 	(bfd_section_from_shdr): Handle attributes sections.
> 	* elflink.c (bfd_elf_final_link): Handle attributes sections.
> 	* elfxx-target.h (elf_backend_obj_attrs_vendor,
> 	elf_backend_obj_attrs_section, elf_backend_obj_attrs_arg_type,
> 	elf_backend_obj_attrs_section_type): New.
> 	(elfNN_bed): Update.
> 	* elf32-arm.c (NUM_KNOWN_ATTRIBUTES, aeabi_attribute,
> 	aeabi_attribute_list): Remove.
> 	(struct elf32_arm_obj_tdata): Remove object attributes fields.
> 	(check_use_blx, bfd_elf32_arm_set_vfp11_fix, using_thumb2,
> 	elf32_arm_copy_private_bfd_data, elf32_arm_merge_eabi_attributes):
> 	Update for new object attributes interfaces.
> 	(uleb128_size, is_default_attr, eabi_attr_size,
> 	elf32_arm_eabi_attr_size, write_uleb128, write_eabi_attribute,
> 	elf32_arm_set_eabi_attr_contents, elf32_arm_bfd_final_link,
> 	elf32_arm_new_eabi_attr, elf32_arm_get_eabi_attr_int,
> 	elf32_arm_add_eabi_attr_int, attr_strdup,
> 	elf32_arm_add_eabi_attr_string, elf32_arm_add_eabi_attr_compat,
> 	copy_eabi_attributes, elf32_arm_parse_attributes): Remove.  Moved
> 	to generic code in elf-attrs.c.
> 	(elf32_arm_obj_attrs_arg_type): New.
> 	(elf32_arm_fake_sections): Do not handle .ARM.attributes.
> 	(elf32_arm_section_from_shdr): Do not handle SHT_ARM_ATTRIBUTES.
> 	(bfd_elf32_bfd_final_link): Remove.
> 	(elf_backend_obj_attrs_vendor, elf_backend_obj_attrs_section,
> 	elf_backend_obj_attrs_arg_type,
> 	elf_backend_obj_attrs_section_type): New.
> 	* elf32-bfin.c (bfin_elf_copy_private_bfd_data): Copy object
> 	attributes.
> 	* elf32-frv.c (frv_elf_copy_private_bfd_data): Likewise.
> 	* elf32-iq2000.c (iq2000_elf_copy_private_bfd_data): Likewise.
> 	* elf32-mep.c (mep_elf_copy_private_bfd_data): Likewise.
> 	* elf32-mt.c (mt_elf_copy_private_bfd_data): Likewise.
> 	* elf32-sh.c (sh_elf_copy_private_data): Likewise.
> 	* elf64-sh64.c (sh_elf64_copy_private_data_internal): Likewise.
> 
> binutils:
> 2007-06-26  Joseph Myers  <joseph@codesourcery.com>
> 
> 	* readelf.c (display_gnu_attribute): New.
> 	(process_arm_specific): Rearrange as process_attributes.
> 	(process_arm_specific): Replace by wrapper of process_attributes.
> 
> gas:
> 2007-06-26  Joseph Myers  <joseph@codesourcery.com>
> 
> 	* as.c (create_obj_attrs_section): New.
> 	(main): Call create_obj_attrs_section for ELF.
> 	* read.c (s_gnu_attribute, skip_whitespace, skip_past_char,
> 	skip_past_comma, s_vendor_attribute): New.
> 	(potable): Add gnu_attribute for ELF.
> 	* read.h (s_vendor_attribute): Declare.
> 	* config/tc-arm.c (s_arm_eabi_attribute): Replace by wrapper
> 	round s_vendor_attribute.
> 	(aeabi_set_public_attributes): Update for new attributes
> 	interfaces.
> 	(arm_md_end): Remove attributes contents setting now done
> 	generically.
> 
> include/elf:
> 2007-06-26  Joseph Myers  <joseph@codesourcery.com>
> 
> 	* arm.h (elf32_arm_add_eabi_attr_int,
> 	elf32_arm_add_eabi_attr_string, elf32_arm_add_eabi_attr_compat,
> 	elf32_arm_get_eabi_attr_int, elf32_arm_set_eabi_attr_contents,
> 	elf32_arm_eabi_attr_size, Tag_NULL, Tag_File, Tag_Section,
> 	Tag_Symbol, Tag_compatibility): Remove.
> 	* common.h (SHT_GNU_ATTRIBUTES): Define.
> 
> ld:
> 2007-06-26  Joseph Myers  <joseph@codesourcery.com>
> 
> 	* emulparams/armelf.sh (OTHER_SECTIONS): Remove .ARM.attributes.
> 	(ATTRS_SECTIONS): Define.
> 	* scripttempl/elf.sc, scripttempl/elf32sh-symbian.sc,
> 	scripttempl/elf_chaos.sc, scripttempl/elfi370.sc,
> 	scripttempl/elfxtensa.sc: Handle ATTRS_SECTIONS.
>