[PATCH] ARM: Eliminate EXTRA_FRAME_INFO & FRAME_FIND_SAVED_REGS

[Richard Earnshaw]

This patch eliminates the deprecated macros EXTRA_FRAME_INFO & 
FRAME_FIND_SAVED_REGS from the arm target support files and replaces them 
with the new methods for doing this.  Tested on arm-netbsd and arm-linux 
with no regressions.

Most of the patch is mechanical replacement of 

	Replace			with	
	fip->fsr.regs 		fip->saved_regs
	fip->framereg		fip->extra_info->framereg
	fip->framesize		fip->extra_info->framesize
	fip->frameoffset	fip->extra_info->framesize

R.

	Convert arm targets to new FRAME interface.
	* arm-tdep.c (struct frame_extra_info): Remove fsr.
	(arm_frame_find_save_regs): Delete.
	(arm_frame_init_saved_regs): New.
	(arm_init_extra_frame_info): Alloacte saved_regs as required.
	Allocate extra_info as required.  Convert all uses of fsr.regs
	to use saved_regs, similarly all uses of EXTRA_FRAME_INFO fields
	to use extra_info.
	(thumb_scan_prologue, arm_scan_prologue, arm_find_callers_reg)
	(arm_frame_chain, arm_frame_saved_pc, arm_pop_frame): Likewise.
	(check_prologue_cache): Likewise.  Also ensure prologue_cache is
	correctly set up on first use.
	(save_prologue_cache): Likewise.
	* config/arm/tm-arm.h (EXTRA_FRAME_INFO): Delete.
	(FRAME_FIND_SAVED_REGS): Delete.
	(arm_frame_find_saved_regs): Delete prototype.
	(arm_frame_init_saved_regs): New prototype.
	(FRAME_INIT_SAVED_REGS): Define.


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