NetBSD-5.0.2/sys/arch/vax/include/profile.h

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/*      $NetBSD: profile.h,v 1.12 2008/08/29 18:25:02 matt Exp $ */
/*
 * Copyright (c) 1992 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)profile.h   7.1 (Berkeley) 7/16/92
 */

/*
 * _mcount can't be declared static, gcc will optimize it away then.
 */
#define _MCOUNT_DECL void _mcount

/*
 * Note here: the second argument to __mcount() is pc when mcount
 * was called. Because it's already on the stack we only have to
 * push previous pc _and_ tell calls that it is only one argument
 * to __mcount, so that our return address won't get popped from stack.
 */
#define MCOUNT \
__asm(".text; .globl __mcount; __mcount: pushl 16(%fp); calls $1,_mcount; rsb");

#ifdef _KERNEL
/*
 * Note that we assume splhigh() and splx() cannot call mcount()
 * recursively.
 */
#define MCOUNT_ENTER    s = splhigh()
#define MCOUNT_EXIT     splx(s)
#endif /* _KERNEL */