ChangeLog:

ChangeLog:

	* target.h (enum strata): New value arch_stratum.
	* target.c (target_require_runnable): Skip arch_stratum targets.

	* configure.tgt (powerpc-*-linux* | powerpc64-*-linux*): Add
	solib-spu.o and spu-multiarch.o to gdb_target_obs.
	* Makefile.in (ALL_TARGET_OBS): Add solib-spu.o and spu-multiarch.o.
	(ALLDEPFILES): Add solib-spu.c and spu-multiarch.c.

	* solib-spu.c: New file.
	* solib-spu.h: New file.
	* spu-multiarch.c: New file.

	* spu-tdep.h (SPUADDR, SPUADDR_SPU, SPUADDR_ADDR): New macros.

	* spu-tdep.c (struct gdbarch_tdep): New member id.
	(spu_gdbarch_id): New function.
	(spu_lslr): New function.

	(spu_address_to_pointer): New function.
	(spu_pointer_to_address): Support SPU ID address encoding.  Use
	spu_gdbarch_id and spu_lslr.
	(spu_integer_to_address): Likewise.
	(spu_frame_unwind_cache): Update for encoded addresses.
	(spu_unwind_pc, spu_unwind_sp): Likewise.
	(spu_read_pc, spu_write_pc): Likewise.
	(spu_push_dummy_call): Likewise.
	(spu_software_single_step): Likewise.
	(spu_get_longjmp_target): Likewise.
	(spu_overlay_update_osect): Likewise.

	(spu_dis_asm_print_address): New function.
	(gdb_print_insn_spu): Likewise.

	(spu_gdbarch_init): Store SPU ID in tdep structure.
	Install spu_address_to_pointer and gdb_print_insn_spu.

	* ppc-linux-tdep.c: Include "observer.h", "auxv.h", "elf/common.h"
	and "solib-spu.h".
	(ppc_linux_entry_point_addr): New static variable.
	(ppc_linux_inferior_created): New function.
	(ppc_linux_displaced_step_location): Likewise.
	(ppc_linux_init_abi): Enable Cell/B.E. support if supported
	by the target.
	(_initialize_ppc_linux_tdep): Attach to inferior_created observer.

	* NEWS: Mention multi-architecture and Cell/B.E. debugging
	capabilities.

testsuite/ChangeLog:

	* gdb.xml/tdesc-regs.exp: Skip for SPU targets.