TRAP_TRACE
trapsignal(p, SIGTRAP, esr, TRAP_TRACE, sv);
code = TRAP_TRACE;
trapsignal(p, SIGTRAP, type & ~T_USER, TRAP_TRACE, sv);
trapsignal(p, SIGTRAP, type &~ T_USER, TRAP_TRACE, sv);
fault_type = TRAP_TRACE;
fault_type = TRAP_TRACE;
fault_type = TRAP_TRACE;
fault_type = TRAP_TRACE;
sicode = TRAP_TRACE;
sicode = TRAP_TRACE;
trapsignal(p, SIGTRAP, type, TRAP_TRACE, sv);
trapsignal(p, SIGTRAP, 0, TRAP_TRACE, sv);
trapsignal(p, SIGTRAP, expevt & ~EXP_USER, TRAP_TRACE, sv);