HPPA_BREAK_KERNEL
:: "i" (HPPA_BREAK_KERNEL), "i" (HPPA_BREAK_KGDB));
#define SSBREAKPOINT (HPPA_BREAK_KERNEL | (HPPA_BREAK_SS << 13))
: "i" (HPPA_BREAK_KERNEL), "i" (HPPA_BREAK_SPLLOWER), "r" (arg0)