sc_reg            536 maint/gnulib/lib/sigsegv.c #   define SIGSEGV_FAULT_STACKPOINTER  scp->sc_reg[20-15]
sc_reg            538 maint/gnulib/lib/sigsegv.c #   define SIGSEGV_FAULT_STACKPOINTER  scp->sc_reg.r_r15