2003-06-08 Andrew Cagney <cagney@redhat.com>

2003-06-08  Andrew Cagney  <cagney@redhat.com>

	* gdbarch.sh (UNWIND_SP): Add.
	* gdbarch.h, gdbarch.c: Re-generate.
	* frame.c (frame_sp_unwind): New function.
	(get_frame_sp): New function.
	* frame.h (get_frame_sp, frame_sp_unwind): Declare.
	* regcache.c (read_sp): Rewrite, try each of TARGET_READ_SP,
	gdbarch_unwind_sp and SP_REGNUM when looking for the SP register
	value.
	* d10v-tdep.c (d10v_unwind_sp): Replace d10v_read_sp.
	(d10v_gdbarch_init): Set unwind_sp instead of read_sp.

2003-06-08  Andrew Cagney  <cagney@redhat.com>

	* gdbint.texinfo (Target Architecture Definition): Document
	"unwind_sp".  Cross reference "unwind_sp" and TARGET_READ_SP.