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Annotation of sys/arch/vax/include/profile.h, Revision 1.1

1.1     ! nbrk        1: /*      $OpenBSD: profile.h,v 1.7 2003/06/02 23:27:57 millert Exp $ */
        !             2: /*      $NetBSD: profile.h,v 1.5 1995/12/31 12:15:58 ragge Exp $ */
        !             3: /*
        !             4:  * Copyright (c) 1992 The Regents of the University of California.
        !             5:  * All rights reserved.
        !             6:  *
        !             7:  * Redistribution and use in source and binary forms, with or without
        !             8:  * modification, are permitted provided that the following conditions
        !             9:  * are met:
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
        !            12:  * 2. Redistributions in binary form must reproduce the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer in the
        !            14:  *    documentation and/or other materials provided with the distribution.
        !            15:  * 3. Neither the name of the University nor the names of its contributors
        !            16:  *    may be used to endorse or promote products derived from this software
        !            17:  *    without specific prior written permission.
        !            18:  *
        !            19:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            29:  * SUCH DAMAGE.
        !            30:  *
        !            31:  *      @(#)profile.h   7.1 (Berkeley) 7/16/92
        !            32:  */
        !            33:
        !            34: /*
        !            35:  * _mcount can't be declared static, gcc will optimize it away then.
        !            36:  */
        !            37: #define _MCOUNT_DECL void _mcount
        !            38:
        !            39: /*
        !            40:  * Note here: the second argument to __mcount() is pc when mcount
        !            41:  * was called. Because it's already on the stack we only have to
        !            42:  * push previous pc _and_ tell calls that it is only one argument
        !            43:  * to __mcount, so that our return address won't get popped from stack.
        !            44:  */
        !            45: #define MCOUNT \
        !            46: __asm__(".text; .globl mcount; mcount: pushl 16(fp); calls $1,__mcount; rsb");
        !            47:
        !            48: #ifdef _KERNEL
        !            49: /*
        !            50:  * Note that we assume splhigh() and splx() cannot call mcount()
        !            51:  * recursively.
        !            52:  */
        !            53: #define MCOUNT_ENTER    s = splhigh()
        !            54: #define MCOUNT_EXIT     splx(s)
        !            55: #endif /* _KERNEL */