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Annotation of XNU/bsd/ppc/profile.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * Copyright (c) 1997, Apple Computer, Inc. All rights reserved.
        !            24:  *
        !            25:  *     History :
        !            26:  *     29-Sep-1997  Umesh Vaishampayan
        !            27:  *             Created.
        !            28:  */
        !            29: 
        !            30: #ifndef _BSD_PPC_PROFILE_H_
        !            31: #define _BSD_PPC_PROFILE_H_
        !            32: 
        !            33: #ifdef KERNEL
        !            34: /*
        !            35:  * Block interrupts during mcount so that those interrupts can also be
        !            36:  * counted (as soon as we get done with the current counting).  On the
        !            37:  * PPC platfom, can't do splhigh/splx as those are C routines and can
        !            38:  * recursively invoke mcount.
        !            39:  */
        !            40: extern unsigned long disable_ee();
        !            41: extern void restore_ee(unsigned long smsr);
        !            42: 
        !            43: #define MCOUNT_INIT            register unsigned long smsr;
        !            44: 
        !            45: #define        MCOUNT_ENTER    smsr = disable_ee();
        !            46: 
        !            47: #define        MCOUNT_EXIT             restore_ee(smsr);
        !            48: 
        !            49: #endif /* KERNEL */
        !            50: 
        !            51: #endif /* _BSD_PPC_PROFILE_H_ */

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