carve              61 arch/arc/include/asm/entry-arcv2.h 	; carve pt_regs on stack (case #3), PC/STAT32 already on stack
carve              66 arch/arc/include/asm/entry-arcv2.h 	; carve pt_regs on stack (case #4), which grew partially already
carve              82 arch/arc/include/asm/entry-arcv2.h 	sub	sp, sp, SZ_PT_REGS	; carve pt_regs