-gc-sections and ARM unwinding tables

[Nick Clifton]

Hi Paul,

> 2007-02-15  Paul Brook  <paul@codesourcery.com>
> 
> 	bfd/
> 	* elflink.c (gc_mark_hook_fn): Remove.
> 	(_bfd_elf_gc_mark): Rename gc_mark_hook_fn to elf_gc_mark_hook_fn.
> 	(bfd_elf_gc_sections): Ditto.  Call gc_mark_extra_sections.
> 	* elf-bfd.h (elf_gc_mark_hook_fn): Define.
> 	(elf_backend_data): Add gc_mark_extra_sections.
> 	* elfxx-target.h (elf_backend_gc_mark_extra_sections): Provide default
> 	definition.
> 	(elfNN_bed): Add elf_backend_gc_mark_extra_sections.
> 	* elf32-arm.c (elf32_arm_gc_mark_extra_sections): New function.
> 	(elf_backend_gc_mark_extra_sections): Define.
> 
> 	ld/testsuite/
> 	* ld-arm/arm-elf.exp (armelftests): Add gc-unwind.h.
> 	* ld-arm/gc-unwind.s: New file.
> 	* ld-arm/gc-unwind.d: New file.

Approved - please apply.

Cheers
   Nick