profile.h revision 13107
1177633Sdfr/* 2177633Sdfr * Copyright (c) 1992, 1993 3177633Sdfr * The Regents of the University of California. All rights reserved. 4177633Sdfr * 5177633Sdfr * Redistribution and use in source and binary forms, with or without 6177633Sdfr * modification, are permitted provided that the following conditions 7177633Sdfr * are met: 8177633Sdfr * 1. Redistributions of source code must retain the above copyright 9177633Sdfr * notice, this list of conditions and the following disclaimer. 10177633Sdfr * 2. Redistributions in binary form must reproduce the above copyright 11177633Sdfr * notice, this list of conditions and the following disclaimer in the 12177633Sdfr * documentation and/or other materials provided with the distribution. 13177633Sdfr * 3. All advertising materials mentioning features or use of this software 14177633Sdfr * must display the following acknowledgement: 15177633Sdfr * This product includes software developed by the University of 16177633Sdfr * California, Berkeley and its contributors. 17177633Sdfr * 4. Neither the name of the University nor the names of its contributors 18177633Sdfr * may be used to endorse or promote products derived from this software 19177633Sdfr * without specific prior written permission. 20177633Sdfr * 21177633Sdfr * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22177633Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23177633Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24177633Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25177633Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26177633Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27177633Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28177633Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29177633Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30177633Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31177633Sdfr * SUCH DAMAGE. 32177633Sdfr * 33177633Sdfr * @(#)profile.h 8.1 (Berkeley) 6/11/93 34177633Sdfr * $Id: profile.h,v 1.4 1994/09/15 16:27:14 paul Exp $ 35177633Sdfr */ 36177633Sdfr 37177633Sdfr#ifndef _MACHINE_PROFILE_H_ 38177633Sdfr#define _MACHINE_PROFILE_H_ 39177633Sdfr 40177633Sdfr#if 0 41177633Sdfr#define _MCOUNT_DECL static inline void _mcount 42177633Sdfr 43177633Sdfr#define MCOUNT \ 44177633Sdfrextern void mcount() asm("mcount"); void mcount() { \ 45177633Sdfr fptrint_t selfpc, frompc; \ 46177633Sdfr /* \ 47177633Sdfr * Find the return address for mcount, \ 48177633Sdfr * and the return address for mcount's caller. \ 49177633Sdfr * \ 50177633Sdfr * selfpc = pc pushed by call to mcount \ 51177633Sdfr */ \ 52177633Sdfr asm("movl 4(%%ebp),%0" : "=r" (selfpc)); \ 53177633Sdfr /* \ 54177633Sdfr * frompc = pc pushed by call to mcount's caller. \ 55177633Sdfr * The caller's stack frame has already been built, so %ebp is \ 56177633Sdfr * the caller's frame pointer. The caller's raddr is in the \ 57177633Sdfr * caller's frame following the caller's caller's frame pointer. \ 58177633Sdfr */ \ 59177633Sdfr asm("movl (%%ebp),%0" : "=r" (frompc)); \ 60177633Sdfr frompc = ((fptrint_t *)frompc)[1]; \ 61177685Sdfr _mcount(frompc, selfpc); \ 62177633Sdfr} 63177633Sdfr#else 64177633Sdfr#define _MCOUNT_DECL void mcount 65177633Sdfr#define MCOUNT 66177633Sdfr#endif 67177633Sdfr 68177633Sdfr#define MCOUNT_ENTER { save_eflags = read_eflags(); disable_intr(); } 69177633Sdfr#define MCOUNT_EXIT (write_eflags(save_eflags)) 70177633Sdfr 71177633Sdfr#define CALIB_SCALE 1000 72177633Sdfr#define KCOUNT(p,index) ((p)->kcount[(index) \ 73177633Sdfr / (HISTFRACTION * sizeof(*(p)->kcount))]) 74177633Sdfr#define PC_TO_I(p, pc) ((fptrint_t)(pc) - (fptrint_t)(p)->lowpc) 75177633Sdfr 76177633Sdfr/* An unsigned integral type that can hold function pointers. */ 77177633Sdfrtypedef u_int fptrint_t; 78177633Sdfr 79177633Sdfr/* 80177633Sdfr * An unsigned integral type that can hold non-negative difference between 81177633Sdfr * function pointers. 82177633Sdfr */ 83177633Sdfrtypedef int fptrdiff_t; 84177633Sdfr 85177633Sdfru_int cputime __P((void)); 86177633Sdfrvoid mcount __P((fptrint_t frompc, fptrint_t selfpc)); 87177633Sdfrvoid mexitcount __P((fptrint_t selfpc)); 88177633Sdfr 89177633Sdfr#endif /* !MACHINE_PROFILE_H */ 90177633Sdfr