sparc-vxworks support

[Nick Clifton]

Hi Richard,


> 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
> 	    Daniel Jacobowitz  <dan@codesourcery.com>
> 
> bfd/
> 	* config.bfd (sparc-*-vxworks*): New stanza.
> 	* configure.in (bfd_elf32_sparc_vxworks_vec): New stanza.
> 	(bfd_elf32_sparc_vec, bfd_elf64_sparc_vec): Add elf-vxworks.lo.
> 	* configure: Regenerate.
> 	* elf32-sparc.c: Include elf-vxworks.h.
> 	(elf32_sparc_vxworks_link_hash_table_create: New.
> 	(elf32_sparc_vxworks_final_write_processing): New.
> 	(TARGET_BIG_SYM): Override for VxWorks.
> 	(TARGET_BIG_NAME, ELF_MINPAGESIZE): Likewise.
> 	(bfd_elf32_bfd_link_hash_table_create): Likewise.
> 	(elf_backend_want_got_plt, elf_backend_plt_readonly): Likewise.
> 	(elf_backend_got_header_size, elf_backend_add_symbol_hook): Likewise.
> 	(elf_backend_link_output_symbol_hook): Likewise.
> 	(elf_backend_emit_relocs): Likewise.
> 	(elf_backend_final_write_processing, elf32_bed): Likewise.
> 	* elfxx-sparc.c: Include libiberty.h and elf-vxworks.h.
> 	(sparc_vxworks_exec_plt0_entry, sparc_vxworks_exec_plt_entry): New.
> 	(sparc_vxworks_shared_plt0_entry, sparc_vxworks_shared_plt_entry): New.
> 	(_bfd_sparc_elf_link_hash_table_create): Don't initialize
> 	build_plt_entry here.
> 	(create_got_section): Initialize sgotplt for VxWorks.
> 	(_bfd_sparc_elf_create_dynamic_sections): Initialize build_plt_entry,
> 	plt_header_size and plt_entry_size, with new VxWorks-specific settings.
> 	Call elf_vxworks_create_dynamic_sections for VxWorks.
> 	(allocate_dynrelocs): Use plt_header_size and plt_entry_size.
> 	Allocate room for .got.plt and .rela.plt.unloaded entries on VxWorks.
> 	(_bfd_sparc_elf_size_dynamic_sections): Don't allocate a nop in .plt
> 	for VxWorks.  Check for the .got.plt section.
> 	(sparc_vxworks_build_plt_entry): New function.
> 	(_bfd_sparc_elf_finish_dynamic_symbol): Add handling of VxWorks PLTs.
> 	Don't make _GLOBAL_OFFSET_TABLE_ and _PROCEDURE_LINKAGE_TABLE_
> 	absolute on VxWorks.
> 	(sparc32_finish_dyn): Add special handling for DT_RELASZ
> 	and DT_PLTGOT on VxWorks.
> 	(sparc_vxworks_finish_exec_plt): New.
> 	(sparc_vxworks_finish_shared_plt): New.
> 	(_bfd_sparc_elf_finish_dynamic_sections): Call them.
> 	Use plt_header_size and plt_entry_size.
> 	* elfxx-sparc.h (_bfd_sparc_elf_link_hash_table): Add is_vxworks,
> 	srelplt2, sgotplt, plt_header_size and plt_entry_size fields.
> 	* Makefile.am (elfxx-sparc.lo): Depend on elf-vxworks.h.
> 	(elf32-sparc.lo): Likewise.
> 	* Makefile.in: Regenerate.
> 	* targets.c (bfd_elf32_sparc_vxworks_vec): Declare.
> 	(_bfd_target_vector): Add a pointer to it.
> 
> gas/
> 	* config/tc-sparc.c (sparc_target_format): Handle TE_VXWORKS.
> 	(GOTT_BASE, GOTT_INDEX): New.
> 	(tc_gen_reloc): Don't alter relocations against GOTT_BASE and
> 	GOTT_INDEX when generating VxWorks PIC.
> 	* configure.tgt (sparc*-*-vxworks*): Remove this special case;
> 	use the generic *-*-vxworks* stanza instead.
> 
> gas/testsuite/
> 	* gas/sparc/vxworks-pic.s, gas/sparc/vxworks-pic.d: New test.
> 	* gas/sparc/sparc.exp: Run it.  Remove sparc*-*-vxworks* XFAILs.
> 
> ld/
> 	* configure.tgt (sparc*-*-vxworks*): New stanza.
> 	* emulparams/elf32_sparc_vxworks.sh: New file.
> 	* Makefile.am (ALL_EMULATIONS): Add eelf32_sparc_vxworks.o.
> 	(eelf32_sparc_vxworks.c): New rule.
> 	* Makefile.in: Regenerate.
> 
> ld/testsuite/
> 	* ld-sparc/vxworks1.dd, ld-sparc/vxworks1.ld, ld-sparc/vxworks1-lib.dd,
> 	* ld-sparc/vxworks1-lib.nd, ld-sparc/vxworks1-lib.rd,
> 	* ld-sparc/vxworks1-lib.s, ld-sparc/vxworks1.rd, ld-sparc/vxworks1.s,
> 	* ld-sparc/vxworks1-static.d, ld-sparc/vxworks2.s,
> 	* ld-sparc/vxworks2.sd, ld-sparc/vxworks2-static.sd: New tests.
> 	* ld-sparc/sparc.exp: Run them.

Approved - please apply.

Cheers
   Nick

PS.  Sorry for the long delay - I have been away on vacation.