AR_PFS 60 arch/ia64/kernel/entry.h .spillsp ar.pfs,SW(AR_PFS)+16+(off); .spillsp ar.lc,SW(AR_LC)+16+(off); \ AR_PFS 2255 arch/ia64/kernel/unwind.c unw.sw_off[unw.preg_index[UNW_REG_PFS]] = SW(AR_PFS);