*
* @APPLE_LICENSE_HEADER_START@
*
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License"). You may not use this file except in compliance with the
+ * License. Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
*
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
switch (behavior) {
case EXCEPTION_STATE: {
mach_msg_type_number_t state_cnt;
- natural_t state[ THREAD_MACHINE_STATE_MAX ];
+ thread_state_data_t state;
c_thr_exc_raise_state++;
state_cnt = state_count[flavor];
case EXCEPTION_STATE_IDENTITY: {
mach_msg_type_number_t state_cnt;
- natural_t state[ THREAD_MACHINE_STATE_MAX ];
+ thread_state_data_t state;
c_thr_exc_raise_state_id++;
state_cnt = state_count[flavor];
switch (behavior) {
case EXCEPTION_STATE: {
mach_msg_type_number_t state_cnt;
- natural_t state[ THREAD_MACHINE_STATE_MAX ];
+ thread_state_data_t state;
c_thr_exc_raise_state++;
state_cnt = state_count[flavor];
case EXCEPTION_STATE_IDENTITY: {
mach_msg_type_number_t state_cnt;
- natural_t state[ THREAD_MACHINE_STATE_MAX ];
+ thread_state_data_t state;
c_thr_exc_raise_state_id++;
state_cnt = state_count[flavor];
return(KERN_FAILURE);
}
+
+
+
+/*
+ * Handle interface for special perfomance monitoring
+ * This is a special case of the host exception handler
+ */
+
+kern_return_t sys_perf_notify(struct task *task,
+ exception_data_t code,
+ mach_msg_type_number_t codeCnt)
+{
+ host_priv_t hostp;
+ struct exception_action *excp;
+ thread_act_t act = current_act();
+ thread_t thr = current_thread();
+ ipc_port_t xport;
+ kern_return_t ret;
+ int abrt;
+ spl_t ints;
+ wait_interrupt_t wsave;
+
+ hostp = host_priv_self(); /* Get the host privileged ports */
+ excp = &hostp->exc_actions[EXC_RPC_ALERT]; /* Point to the RPC_ALERT action */
+
+ mutex_lock(&hostp->lock); /* Lock the priv port */
+ xport = excp->port; /* Get the port for this exception */
+ if (!IP_VALID(xport)) { /* Is it valid? */
+ mutex_unlock(&hostp->lock); /* Unlock */
+ return(KERN_FAILURE); /* Go away... */
+ }
+
+ ip_lock(xport); /* Lock the exception port */
+ if (!ip_active(xport)) { /* and is it active? */
+ ip_unlock(xport); /* Nope, fail */
+ mutex_unlock(&hostp->lock); /* Unlock */
+ return(KERN_FAILURE); /* Go away... */
+ }
+
+ if (task->itk_space == xport->data.receiver) { /* Are we trying to send to ourselves? */
+ ip_unlock(xport); /* Yes, fail */
+ mutex_unlock(&hostp->lock); /* Unlock */
+ return(KERN_FAILURE); /* Go away... */
+ }
+
+ ip_reference(xport); /* Bump reference so it doesn't go away */
+ xport->ip_srights++; /* Bump send rights */
+ ip_unlock(xport); /* We can unlock it now */
+
+ mutex_unlock(&hostp->lock); /* All done with the lock */
+
+ wsave = thread_interrupt_level(THREAD_UNINT); /* Make sure we aren't aborted here */
+
+ ret = exception_raise(xport, /* Send the exception to the perf handler */
+ retrieve_act_self_fast(act), /* Not always the dying guy */
+ retrieve_task_self_fast(act->task), /* Not always the dying guy */
+ EXC_RPC_ALERT, /* Unused exception type until now */
+ code, codeCnt);
+
+ (void)thread_interrupt_level(wsave); /* Restore interrupt level */
+
+ return(ret); /* Tell caller how it went */
+}
+
projects / apple / xnu.git / blobdiff