1 /* $NetBSD: profile.h,v 1.8 2002/02/24 01:04:26 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. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)profile.h 7.1 (Berkeley) 7/16/92 35 */ 36 37 /* 38 * _mcount can't be declared static, gcc will optimize it away then. 39 */ 40 #define _MCOUNT_DECL void _mcount 41 42 /* 43 * Note here: the second argument to __mcount() is pc when mcount 44 * was called. Because it's already on the stack we only have to 45 * push previous pc _and_ tell calls that it is only one argument 46 * to __mcount, so that our return address won't get popped from stack. 47 */ 48 #ifdef __ELF__ 49 #define MCOUNT \ 50 __asm__(".text; .globl __mcount; __mcount: pushl 16(%fp); calls $1,_mcount; rsb"); 51 #else 52 #define MCOUNT \ 53 __asm__(".text; .globl mcount; mcount: pushl 16(%fp); calls $1,__mcount; rsb"); 54 #endif 55 56 #ifdef _KERNEL 57 /* 58 * Note that we assume splhigh() and splx() cannot call mcount() 59 * recursively. 60 */ 61 #define MCOUNT_ENTER s = splhigh() 62 #define MCOUNT_EXIT splx(s) 63 #endif /* _KERNEL */ 64