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Annotation of sys/arch/vax/include/profile.h, Revision 1.1.1.1

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 */