Fix Sparc %fsr regset offset for BSD and Linux.

Fix Sparc %fsr regset offset for BSD and Linux.

gdb/

	* sparc-tdep.h (struct sparc_fpregset): New data structure.
	(sparc32_sunos4_fpregset, sparc32_bsd_fpregset,
	sparc32_sol2_fpregset): Declare new globals.
	(sparc32_supply_fpregset, sparc32_collect_fpregset): Add new
	'fpregset' argument.
	* sparc64-tdep.h (sparc64_supply_fpregset,
	sparc64_collect_fpregset): Likewise.
	(sparc64_sol2_fpregset, sparc64_bsd_fpregset): Declare new
	globals.
	* sparc-nat.h (struct sparc_fpregset): Add forward declaration.
	(sparc_fpregset): Declare new global.
	(sparc_supply_fpregset, sparc_collect_fpregset): Add new
	'fpregset' argument.
	* sparc-linux-nat.c (supply_fpregset): Pass sparc_fpregset down
	into handler.
	(fill_fpregset): Likewise.
	(_initialize_sparc_linux_nat): Set sparc_fpregset to
	sparc32_bsd_fpregset.
	* sparc-linux-tdep.c (sparc32_linux_supply_core_fpregset): Pass
	sparc32_bsd_fpregset down into handler.
	(sparc32_linux_collect_core_fpregset): Likewise.
	* sparc-nat.c (sparc_fpregset): Define.
	(sparc_supply_fpregset): Add 'fpregset' argument.
	(sparc_collect_fpregset): Likewise.
	(sparc_fetch_inferior_registers): Pass sparc_fpregset down
	into fpregset handler.
	(sparc_store_inferior_registers): Likewise.
	(_initialize_sparc_nat): Set sparc_fpregset to
	sparc32_sunos4_fpregset if NULL.
	* sparc-sol2-nat.c (supply_gregset): Pass sparc_sol2_fpregset
	down into handler.
	(fill_fpregset): Likewise.
	* sparc-sol2-tdep.c (sparc32_sol2_fpregset): Define.
	* sparc-tdep.c (sparc32_supply_fpregset): Add fpregset arg and
	use it to compute offsets.
	(sparc32_collect_fpregset): Likewise.
	(sparc32_sunos4_fpregset, sparc32_bsd_fpregset): Define.
	* sparc64-linux-nat.c (supply_fpregset): Pass sparc64_bsd_fpregset
	down into handler.
	(fill_fpregset): Likewise.
	* sparc64-linux-tdep.c (sparc64_linux_supply_core_fpregset):
	Likewise.
	(sparc64_linux_collect_core_fpregset): Likewise.
	* sparc64-sol2-tdep.c (sparc64_sol2_fpregset): Define.
	* sparc64-tdep.c (sparc64_supply_fpregset): Add fpregset arg and
	use it to compute offsets.
	(sparc64_collect_fpregset): Likewise.
	(sparc64_bsd_fpregset): Define.
	* sparc64fbsd-tdep.c (sparc64fbsd_supply_fpregset): Padd
	sparc64_bsd_fpregset down into handler.
	(sparc64fbsd_collect_fpregset): Likewise.
	* sparc64nbsd-nat.c (sparc64nbsd_supply_fpregset): Add fpregset arg
	and pass sparc{32,64}_bsd_fpregset down into handler.
	(sparc64nbsd_collect_fpregset): Likewise.
	* sparc64nbsd-tdep.c (sparc64nbsd_supply_fpregset): Pass
	sparc64_bsd_fpregset down into handler.
	* sparc64obsd-tdep.c (sparc64obsd_supply_gregset): Likewise.
	* sparcnbsd-nat.c (_initialize_sparcnbsd_nat): Set sparc_fpregset
	to sparc32_bsd_fpregset.
	* sparcnbsd-tdep.c (sparc32nbsd_supply_gregset): Pass
	sparc32_bsd_fpregset down into sparc32_supply_fpregset.
	(sparc32nbsd_supply_fpregset): Likewise.