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Annotation of kernel/machdep/i386/kernel_pmon.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
                      7:  * Reserved.  This file contains Original Code and/or Modifications of
                      8:  * Original Code as defined in and that are subject to the Apple Public
                      9:  * Source License Version 1.1 (the "License").  You may not use this file
                     10:  * except in compliance with the License.  Please obtain a copy of the
                     11:  * License at http://www.apple.com/publicsource and read it before using
                     12:  * this file.
                     13:  * 
                     14:  * The Original Code and all software distributed under the License are
                     15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     19:  * License for the specific language governing rights and limitations
                     20:  * under the License.
                     21:  * 
                     22:  * @APPLE_LICENSE_HEADER_END@
                     23:  */
                     24: 
                     25: /* 
                     26:  * Copyright (c) 1990 NeXT, Inc.
                     27:  *
                     28:  * This file is the single kernel kernel include file for the pmon interface.
                     29:  *
                     30:  * HISTORY
                     31:  *
                     32:  * 1-Mar-90    Brian Pinkerton at NeXT
                     33:  *     Created
                     34:  *
                     35:  */
                     36: 
                     37: #ifdef DEBUG
                     38: 
                     39: #define PMON   1                       /* make PMON conditional on DEBUG */
                     40: 
                     41: #import <sys/types.h>
                     42: #import <sys/proc.h>
                     43: #import <sys/time_stamp.h>
                     44: #import <machine/eventc.h>
                     45: #import <machine/pmon.h>               /* generic pmon interface */
                     46: #import <machine/pmon_targets.h>       /* list of kernel pmon targets */
                     47: 
                     48: 
                     49: extern int pmon_flags[];               /* currently enabled event masks */
                     50: extern void(*pmon_event_log_p)();      /* pointer to pmon_event_log() 
                     51:                                           (set by the kern_loader)  */
                     52: 
                     53: 
                     54: /*
                     55:  *  This is the usual interface to pmon in the kernel.  It just checks to
                     56:  *  see if the source,event_type pair is enabled, and if so, grabs the 
                     57:  *  current clock and logs the event.
                     58:  */
                     59: 
                     60: static inline void pmon_log_event(source, event_type, data1, data2, data3)
                     61:        int source, event_type;
                     62:        int data1, data2, data3;
                     63: {
                     64:        if (pmon_flags[source] & event_type) {
                     65:            struct tsval event_timestamp;
                     66:     
                     67:            event_set_ts(&event_timestamp);
                     68:            (*pmon_event_log_p)(source,
                     69:                    event_type,
                     70:                    &event_timestamp,
                     71:                    data1,
                     72:                    data2,
                     73:                    data3);
                     74:        }
                     75: }
                     76: 
                     77: #else /* DEBUG */
                     78: 
                     79: 
                     80: /*
                     81:  *  If we don't have a debug kernel, make sure to turn off pmon event
                     82:  *  logging.  We import the definitions anyway, so nothing will be undefined.
                     83:  */
                     84: 
                     85: #import <machine/pmon.h>               /* generic pmon interface */
                     86: #import <machine/pmon_targets.h>       /* list of kernel pmon targets */
                     87: 
                     88: #define pmon_log_event(source, event_type, data1, data2, data3)
                     89: 
                     90: #endif /* DEBUG */
                     91: 
                     92: 
                     93: 

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