2008-10-24 Hui Zhu <teawater@gmail.com>

2008-10-24  Hui Zhu  <teawater@gmail.com>
	    Pedro Alves  <pedro@codesourcery.com>

	* infrun.c (can_use_displaced_stepping): Change type to
	const char pointer.
	(can_use_displaced_stepping_auto): New string.
	(can_use_displaced_stepping_on): New string.
	(can_use_displaced_stepping_off): New string.
	(can_use_displaced_stepping_enum): New array.
	(show_can_use_displaced_stepping): In auto mode, also show
	the current effect of the option.
	(use_displaced_stepping): Return non-zero if displaced
	stepping is auto, and can be used with GDBARCH, and in
	non-stop mode.  Return non-zero if displaced stepping is on,
	and can be used with GDBARCH.  Return zero otherwise.
	(_initialize_infrun): Make the "set displaced-stepping"
	command an enum command.  Change its class to class_run.
	Place it in the top level set list.  Extend help to describe
	the auto mode.

2008-10-24  Hui Zhu  <teawater@gmail.com>
	    Pedro Alves  <pedro@codesourcery.com>

	* gdb.texinfo (displaced-stepping): Describe the auto mode
	setting, and say it's the default.  This is now a mainstream
	setting instead of a maintenance setting.