638 typedef struct machtrace_sysent {  struct
645 static machtrace_sysent_t *machtrace_sysent = NULL;  variable
697 	sy = &machtrace_sysent[code];  in dtrace_machtrace_syscall()
777 	machtrace_init(mach_trap_table, &machtrace_sysent);  in machtrace_provide()
780 		if (machtrace_sysent[i].stsy_underlying == NULL) {  in machtrace_provide()
796 		machtrace_sysent[i].stsy_entry = DTRACE_IDNONE;  in machtrace_provide()
797 		machtrace_sysent[i].stsy_return = DTRACE_IDNONE;  in machtrace_provide()
815 		ASSERT(machtrace_sysent[sysnum].stsy_entry == DTRACE_IDNONE);  in machtrace_destroy()
817 		ASSERT(machtrace_sysent[sysnum].stsy_return == DTRACE_IDNONE);  in machtrace_destroy()
828 	int enabled = (machtrace_sysent[sysnum].stsy_entry != DTRACE_IDNONE ||  in machtrace_enable()
829 	    machtrace_sysent[sysnum].stsy_return != DTRACE_IDNONE);  in machtrace_enable()
832 		machtrace_sysent[sysnum].stsy_entry = id;  in machtrace_enable()
834 		machtrace_sysent[sysnum].stsy_return = id;  in machtrace_enable()
844 	if (mach_trap_table[sysnum].mach_trap_function == machtrace_sysent[sysnum].stsy_underlying) {  in machtrace_enable()
862 	int disable = (machtrace_sysent[sysnum].stsy_entry == DTRACE_IDNONE ||  in machtrace_disable()
863 	    machtrace_sysent[sysnum].stsy_return == DTRACE_IDNONE);  in machtrace_disable()
878 			ml_nofault_copy((vm_offset_t)&machtrace_sysent[sysnum].stsy_underlying,  in machtrace_disable()
885 		machtrace_sysent[sysnum].stsy_entry = DTRACE_IDNONE;  in machtrace_disable()
887 		machtrace_sysent[sysnum].stsy_return = DTRACE_IDNONE;  in machtrace_disable()