dev/dtrace/systrace.c

461 	int sysnum = SYSTRACE_SYSNUM((uintptr_t)parg);
463 #pragma unused(sysnum)  /* __APPLE__ */
469 		ASSERT(systrace_sysent[sysnum].stsy_entry == DTRACE_IDNONE);
471 		ASSERT(systrace_sysent32[sysnum].stsy_entry == DTRACE_IDNONE);
474 		ASSERT(systrace_sysent[sysnum].stsy_return == DTRACE_IDNONE);
476 		ASSERT(systrace_sysent32[sysnum].stsy_return == DTRACE_IDNONE);
487 	int sysnum = SYSTRACE_SYSNUM((uintptr_t)parg);
488 	int enabled = (systrace_sysent[sysnum].stsy_entry != DTRACE_IDNONE ||
489 	    systrace_sysent[sysnum].stsy_return != DTRACE_IDNONE);
492 		systrace_sysent[sysnum].stsy_entry = id;
494 		systrace_sysent32[sysnum].stsy_entry = id;
497 		systrace_sysent[sysnum].stsy_return = id;
499 		systrace_sysent32[sysnum].stsy_return = id;
504 		ASSERT(sysent[sysnum].sy_callc == dtrace_systrace_syscall);
508 	(void) casptr(&sysent32[sysnum].sy_callc,
509 	    (void *)systrace_sysent32[sysnum].stsy_underlying,
514 	if (sysent[sysnum].sy_callc == systrace_sysent[sysnum].stsy_underlying) {
516 		ml_nofault_copy((vm_offset_t)&dss, (vm_offset_t)&sysent[sysnum].sy_callc, sizeof(vm_offset_t));
528 	int sysnum = SYSTRACE_SYSNUM((uintptr_t)parg);
529 	int disable = (systrace_sysent[sysnum].stsy_entry == DTRACE_IDNONE ||
530 	    systrace_sysent[sysnum].stsy_return == DTRACE_IDNONE);
534 		if (sysent[sysnum].sy_callc == dtrace_systrace_syscall)
535 			ml_nofault_copy((vm_offset_t)&systrace_sysent[sysnum].stsy_underlying, (vm_offset_t)&sysent[sysnum].sy_callc, sizeof(systrace_sysent[sysnum].stsy_underlying));
539 		(void) casptr(&sysent32[sysnum].sy_callc,
541 		    (void *)systrace_sysent32[sysnum].stsy_underlying);
546 		systrace_sysent[sysnum].stsy_entry = DTRACE_IDNONE;
548 		systrace_sysent32[sysnum].stsy_entry = DTRACE_IDNONE;
551 		systrace_sysent[sysnum].stsy_return = DTRACE_IDNONE;
553 		systrace_sysent32[sysnum].stsy_return = DTRACE_IDNONE;
928 	int sysnum = SYSTRACE_SYSNUM((uintptr_t)parg);
930 #pragma unused(sysnum) /* __APPLE__ */
937 		ASSERT(machtrace_sysent[sysnum].stsy_entry == DTRACE_IDNONE);
939 		ASSERT(machtrace_sysent[sysnum].stsy_return == DTRACE_IDNONE);
949 	int sysnum = SYSTRACE_SYSNUM((uintptr_t)parg);
950 	int enabled = (machtrace_sysent[sysnum].stsy_entry != DTRACE_IDNONE ||
951 			machtrace_sysent[sysnum].stsy_return != DTRACE_IDNONE);
954 		machtrace_sysent[sysnum].stsy_entry = id;
956 		machtrace_sysent[sysnum].stsy_return = id;
960 	    ASSERT(mach_trap_table[sysnum].mach_trap_function == (void *)dtrace_machtrace_syscall);
966 	if (mach_trap_table[sysnum].mach_trap_function == machtrace_sysent[sysnum].stsy_underlying) {
968 		ml_nofault_copy((vm_offset_t)&dss, (vm_offset_t)&mach_trap_table[sysnum].mach_trap_function, sizeof(vm_offset_t));
982 	int sysnum = SYSTRACE_SYSNUM((uintptr_t)parg);
983 	int disable = (machtrace_sysent[sysnum].stsy_entry == DTRACE_IDNONE ||
984 			machtrace_sysent[sysnum].stsy_return == DTRACE_IDNONE);
990 		if (mach_trap_table[sysnum].mach_trap_function == (mach_call_t)dtrace_machtrace_syscall) {
991 			ml_nofault_copy((vm_offset_t)&machtrace_sysent[sysnum].stsy_underlying, (vm_offset_t)&mach_trap_table[sysnum].mach_trap_function, sizeof(vm_offset_t));
997 		machtrace_sysent[sysnum].stsy_entry = DTRACE_IDNONE;
999 		machtrace_sysent[sysnum].stsy_return = DTRACE_IDNONE;