* 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.

1 files changed, 10 insertions, 2 deletions

diff --git a/bfd/libelf.h b/bfd/libelf.h
index 0522627..1421181 100644
--- a/bfd/libelf.h
+++ b/bfd/libelf.h
@@ -257,6 +257,12 @@ struct elf_backend_data
 	     const Elf_Internal_Sym *, const char **name,
 	     flagword *flags, asection **sec, bfd_vma *value));
 
+  /* If this field is not NULL, it is called by the elf_link_output_sym
+     phase of a link for each symbol which will appear in the object file.  */
+  boolean (*elf_backend_link_output_symbol_hook)
+    PARAMS ((bfd *, struct bfd_link_info *info, const char *,
+	     Elf_Internal_Sym *, asection *));
+
   /* The CREATE_DYNAMIC_SECTIONS function is called by the ELF backend
      linker the first time it encounters a dynamic object in the link.
      This function must create any sections required for dynamic
@@ -349,11 +355,13 @@ struct elf_backend_data
 
   /* A function to do any beginning processing needed for the ELF file
      before building the ELF headers and computing file positions.  */
-  void (*elf_backend_begin_write_processing) PARAMS ((bfd *));
+  void (*elf_backend_begin_write_processing)
+    PARAMS ((bfd *, struct bfd_link_info *));
 
   /* A function to do any final processing needed for the ELF file
      before writing it out.  */
-  void (*elf_backend_final_write_processing) PARAMS ((bfd *));
+  void (*elf_backend_final_write_processing)
+    PARAMS ((bfd *, struct bfd_link_info *));
 
   /* The swapping table to use when dealing with ECOFF information.
      Used for the MIPS ELF .mdebug section.  */