1 /* $NetBSD: profile.h,v 1.16 2001/11/30 06:53:56 enami Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)profile.h 8.1 (Berkeley) 6/11/93 36 */ 37 38 #define _MCOUNT_DECL static __inline void _mcount 39 40 #ifdef __ELF__ 41 #define MCOUNT_ENTRY "__mcount" 42 #define MCOUNT_COMPAT __weak_alias(mcount, __mcount) 43 #else 44 #define MCOUNT_ENTRY "mcount" 45 #define MCOUNT_COMPAT /* nothing */ 46 #endif 47 48 #define MCOUNT \ 49 MCOUNT_COMPAT \ 50 extern void mcount __P((void)) __asm__(MCOUNT_ENTRY); \ 51 void \ 52 mcount() \ 53 { \ 54 int selfpc, frompcindex; \ 55 /* \ 56 * find the return address for mcount, \ 57 * and the return address for mcount's caller. \ 58 * \ 59 * selfpc = pc pushed by mcount call \ 60 */ \ 61 __asm__ __volatile__("movl 4(%%ebp),%0" : "=r" (selfpc)); \ 62 /* \ 63 * frompcindex = pc pushed by call into self. \ 64 */ \ 65 __asm__ __volatile__("movl (%%ebp),%0;movl 4(%0),%0" \ 66 : "=r" (frompcindex)); \ 67 _mcount((u_long)frompcindex, (u_long)selfpc); \ 68 } 69 70 #ifdef _KERNEL 71 #define MCOUNT_ENTER (void)&s; __asm__("cli"); 72 #define MCOUNT_EXIT __asm__("sti"); 73 #endif /* _KERNEL */ 74