1 /* $NetBSD: profile.h,v 1.2 1995/03/30 20:43:04 ragge Exp $ */ 2 /* 3 * Copyright (c) 1995 Ludd, University of Lule}, Sweden. 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 at Ludd, University of Lule}. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* All bugs are subject to removal without further notice */ 33 34 35 #define _MCOUNT_DECL static inline void _mcount 36 37 #define MCOUNT \ 38 extern void mcount() asm("mcount"); \ 39 void \ 40 mcount() \ 41 { \ 42 int selfpc, frompcindex; \ 43 /* \ 44 * find the return address for mcount, \ 45 * and the return address for mcount's caller. \ 46 * \ 47 * selfpc = pc pushed by mcount call \ 48 */ \ 49 asm("movl 0x10(fp),%0" : "=r" (selfpc)); \ 50 /* \ 51 * frompcindex = pc pushed by call into self. \ 52 */ \ 53 asm("movl 0xc(fp),%0;movl 0x10(%0),%0" : "=r" (frompcindex)); \ 54 _mcount(frompcindex, selfpc); \ 55 } 56 57 #ifdef KERNEL 58 /* 59 * Note that we assume splhigh() and splx() cannot call mcount() 60 * recursively. 61 */ 62 #define MCOUNT_ENTER s = splhigh() 63 #define MCOUNT_EXIT splx(s) 64 #endif /* KERNEL */ 65 66