1 /* $OpenBSD: profile.h,v 1.5 2001/06/27 04:16:37 mickey Exp $ */ 2 /* $NetBSD: profile.h,v 1.6 1995/03/28 18:17:08 jtc Exp $ */ 3 4 /* 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)profile.h 8.1 (Berkeley) 6/11/93 37 */ 38 39 #define _MCOUNT_DECL static __inline void _mcount 40 41 #define MCOUNT \ 42 extern void mcount __P((void)) __asm("mcount"); \ 43 void \ 44 mcount() \ 45 { \ 46 int selfpc, frompcindex; \ 47 /* \ 48 * find the return address for mcount, \ 49 * and the return address for mcount's caller. \ 50 * \ 51 * selfpc = pc pushed by mcount call \ 52 */ \ 53 __asm("movl 4(%%ebp),%0" : "=r" (selfpc)); \ 54 /* \ 55 * frompcindex = pc pushed by call into self. \ 56 */ \ 57 __asm("movl (%%ebp),%0;movl 4(%0),%0" : "+r" (frompcindex)); \ 58 _mcount(frompcindex, selfpc); \ 59 } 60 61 #ifdef _KERNEL 62 /* 63 * Note that we assume splhigh() and splx() cannot call mcount() 64 * recursively. 65 */ 66 #define MCOUNT_ENTER s = splhigh() 67 #define MCOUNT_EXIT splx(s) 68 #endif /* _KERNEL */ 69