1 /* $NetBSD: profile.h,v 1.12 2008/08/29 18:25:02 matt Exp $ */ 2 /* 3 * Copyright (c) 1992 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)profile.h 7.1 (Berkeley) 7/16/92 31 */ 32 33 /* 34 * _mcount can't be declared static, gcc will optimize it away then. 35 */ 36 #define _MCOUNT_DECL void _mcount 37 38 /* 39 * Note here: the second argument to __mcount() is pc when mcount 40 * was called. Because it's already on the stack we only have to 41 * push previous pc _and_ tell calls that it is only one argument 42 * to __mcount, so that our return address won't get popped from stack. 43 */ 44 #define MCOUNT \ 45 __asm(".text; .globl __mcount; __mcount: pushl 16(%fp); calls $1,_mcount; rsb"); 46 47 #ifdef _KERNEL 48 /* 49 * Note that we assume splhigh() and splx() cannot call mcount() 50 * recursively. 51 */ 52 #define MCOUNT_ENTER s = splhigh() 53 #define MCOUNT_EXIT splx(s) 54 #endif /* _KERNEL */ 55