64-bit PowerPC ELF patch

[Linus Nordberg <linus at swox dot com>]

Here is a patch for 64-bit PPC ELF.  It's against a snapshot from
Cygnus CVS of today (1999-12-14).  

ChangeLog:
1999-12-14  Linus Nordberg  <linus@swox.se>

	* configure.in (powerpc-*-elf64): New target.

bfd/ChangeLog:
1999-12-14  Linus Nordberg  <linus@swox.se>
	* targets.c (bfd_target_vector): Add bfd_elf64_powerpc_vec,
	bfd_elf64_powerpcle_vec.

	* Makefile.am (BFD64_BACKENDS_CFILES): Add elf64-ppc.c.
	(BFD64_BACKENDS): Add elf64-ppc.lo.
	(elf64-ppc.lo): Add target.

	* configure.in (bfd_elf64_powerpc_vec, bfd_elf64_powerpcle_vec):
	New vectors.

	* config.bfd (powerpc-*-*elf64): New target.

	* elf64-ppc.c: New file.

	* elfxx-target.h (elf_backend_plt_has_contents): Define.
	(elf_backend_want_got_sym): Define.
	(elfNN_bed): Add elf_backend_plt_has_contents and
	elf_backend_want_got_sym.
	
	* elf-bfd.h (elf_backend_data): Add plt_has_contents and
	want_got_sym.
	
	* elflink.c (_bfd_elf_create_dynamic_sections): Set SEC_CODE flag
	for .plt section only if bed->plt_has_contents is true.
	(_bfd_elf_create_got_section): Define _GLOBAL_OFFSET_TABLE_ only
	if bed->want_got_sym.

	* reloc.c: Add 64-bit PPC relocs.

	Incorporated from Cygnus CVS:
	* elf.c (bfd_section_from_shdr): Avoid crashing on a bogus sh_link
	field.

gas/ChangeLog:
1999-12-14  Torbjorn Granlund  <tege@swox.com>

	* config/tc-ppc.c (md_apply_fix3): For OBJ_ELF, don't put addend
	in instruction field.  Put the ELF64 specific relocs within #ifdef
	TARGET_ABI_PPC_ELF64.  Replace haphazard code for determining
	reloc type with code reading operands->reloc field.  Always check
	the we have a symbol before recording a reloc. Check
	ppc_is_toc_sym for operands that want BFD_RELOC_PPC_TOC16

1999-12-14  Linus Nordberg  <linus@swox.se>

	* config/tc-ppc.c: Add macros for calculating ``high'', ``high
	adjusted'' and such.
	(SHLIB_MRELOCATABLE): Fix typo (was SHILB_MRELOCATABLE).
	(ppc_aixelf_info_no_stabx): New function.
	(ppc_aixelf_csect): New function.  Switch to .data for all but
	`.text[*]', `*[PR]' and sections without braces.  Set BSF_FUNCTION
	flag for `.SYM'.
	(ppc_aixelf_lglobl): New function.
	(ppc_aixelf_rename): New function.
	(ppc_aixelf_toc): New function.
	(ppc_aixelf_vbyte): New function.
	(ppc_aixelf_stabx): New function.
	(ppc_machine): New function.
	(md_pseudo_table): Use them.
	(ppc_aixelf_frob_symbol): New function.
	(lack_stabx_warn_done): New static variable to keep info about
	whether we have warned user about lacking STABX support.
	(ppc_aixelf_stabx): Use it.
	(ppc_aixelf_info_no_stabx): Likewise.
	(ppc_is_toc_sym): Check for section ``.toc'' instead of ``.got''
	if 64-bit.  Test TARGET_ABI_PPC_ELF64, not ppc_size for choosing
	elf64* or elf32*.
	(saix): Static variable indicating that we're reading AIX assembly
	syntax.
	(md_shortopts): Add `-S'.
	(md_parse_option): Handle `-Saix'.  Set default size to 32.
	(md_show_usage): Ditto.
	(ppc_elf_suffix): Add @higher[a], @highest[a], @tocbase, @toc.
	(md_apply_fix3): Handle BFD_RELOC_PPC64_HIGHER with friends.
	Handle BFD_RELOC_64 and BFD_RELOC_64_PCREL.  BFD_RELOC_HI16* now
	use the PPC_HI/HA macros.  Parenthesize to avoid compiler warning.
	Don't require operand->insert == NULL to generate TOC16.
	(ppc_tc): If we're 64-bit, align to eight byte boundary and
	allocate 8 bytes.  Test TARGET_ABI_PPC_ELF64, not ppc_size for
	choosing elf64* or elf32*.
	(ppc_elf_cons): Handle `TOC[tc0]' if aix syntax.
	(ppc_elf_target_format): New function.
	(ppc_elf_lcomm): Ignore third argument if AIX syntax.
	(md_begin): Override ppc_size here if TARGET_ABI_PPC_ELF64.
	(ppc_canonicalize_symbol_name): Use for OBJ_ELF as well.
	(ppc_symbol_new_hook): Likewise.
	(md_assemble): Don't complain over large addend for new HIGH types
	(HIGHER, HIGHER_S, HIGHEST, HIGHEST_S).
	
	* config/tc-ppc.h: Include config.h.  Handle AIX style symbol
	class suffixes in ELF mode.
	(TARGET_FORMAT): Set to ppc_elf_target_format().
	(TARGET_ABI_PPC_ELF64): Define if not already defined (by
	config.h).
	(tc_canonicalize_symbol_name): Define.
	(tc_symbol_new_hook): Ditto.
	(tc_frob_symbol): Ditto.
	(TC_SYMFIELD_TYPE): Ditto.
	(LEX_BR): Ditto.
	(ppc_tc_sy): New struct.
	(ELF_TC_SPECIAL_SECTIONS): Define for 64-bit PPC ELF.
	
	* configure.in: New target ppc-*-elf64.
	(ppc-*-elf64): Define TARGET_ABI_PPC_ELF64.
	* configure: Regenerate.
	* config.in: Ditto.

	Incorporated from Cygnus CVS:
	* config/obj-ecoff.c (obj_ecoff_set_ext): Change uses of bsym to
	use symbol_get_bfdsym instead.
	* config/tc-ppc.c (md_assemble): Likewise.

	
include/elf/ChangeLog:
1999-12-14  Linus Nordberg  <linus@swox.com>

	* ppc.h: Add 64-bit PPC relocs.

ld/ChangeLog:
1999-12-14  Linus Nordberg  <linus@swox.se>

	* Makefile.am (ALL_EMULATIONS): Add eelf64ppc.o and eelf64lppc.o.
	(eelf64ppc.c, eelf64lppc.c): Add make targets.

	* Makefile.in: Regenerate.
	
	* configure.tgt: (powerpc-*-elf64, powerpcle-*-elf64): New
	targets.

	* emulparams/elf64ppc.sh: New file.
	* emulparams/elf64lppc.sh: New file.
	* scripttempl/elf64ppc.sc: Ditto.

FSF-19991214+SWOX-19991213.diff.gz

-- 
Linus Nordberg
Swox AB  <http://www.swox.com/>