profile.h revision 129198
1129198Scognet/* 2129198Scognet * Copyright (c) 1992, 1993 3129198Scognet * The Regents of the University of California. All rights reserved. 4129198Scognet * 5129198Scognet * Redistribution and use in source and binary forms, with or without 6129198Scognet * modification, are permitted provided that the following conditions 7129198Scognet * are met: 8129198Scognet * 1. Redistributions of source code must retain the above copyright 9129198Scognet * notice, this list of conditions and the following disclaimer. 10129198Scognet * 2. Redistributions in binary form must reproduce the above copyright 11129198Scognet * notice, this list of conditions and the following disclaimer in the 12129198Scognet * documentation and/or other materials provided with the distribution. 13129198Scognet * 3. All advertising materials mentioning features or use of this software 14129198Scognet * must display the following acknowledgement: 15129198Scognet * This product includes software developed by the University of 16129198Scognet * California, Berkeley and its contributors. 17129198Scognet * 4. Neither the name of the University nor the names of its contributors 18129198Scognet * may be used to endorse or promote products derived from this software 19129198Scognet * without specific prior written permission. 20129198Scognet * 21129198Scognet * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22129198Scognet * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23129198Scognet * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24129198Scognet * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25129198Scognet * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26129198Scognet * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27129198Scognet * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28129198Scognet * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29129198Scognet * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30129198Scognet * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31129198Scognet * SUCH DAMAGE. 32129198Scognet * 33129198Scognet * @(#)profile.h 8.1 (Berkeley) 6/11/93 34129198Scognet * $FreeBSD: head/sys/arm/include/profile.h 129198 2004-05-14 11:46:45Z cognet $ 35129198Scognet */ 36129198Scognet 37129198Scognet#ifndef _MACHINE_PROFILE_H_ 38129198Scognet#define _MACHINE_PROFILE_H_ 39129198Scognet 40129198Scognet#ifdef _KERNEL 41129198Scognet 42129198Scognet/* 43129198Scognet * Config generates something to tell the compiler to align functions on 16 44129198Scognet * byte boundaries. A strict alignment is good for keeping the tables small. 45129198Scognet */ 46129198Scognet#define FUNCTION_ALIGNMENT 16 47129198Scognet 48129198Scognet/* 49129198Scognet * The kernel uses assembler stubs instead of unportable inlines. 50129198Scognet * This is mainly to save a little time when profiling is not enabled, 51129198Scognet * which is the usual case for the kernel. 52129198Scognet */ 53129198Scognet#define _MCOUNT_DECL void mcount 54129198Scognet#define MCOUNT 55129198Scognet 56129198Scognet#ifdef GUPROF 57129198Scognet#define CALIB_SCALE 1000 58129198Scognet#define KCOUNT(p,index) ((p)->kcount[(index) \ 59129198Scognet / (HISTFRACTION * sizeof(HISTCOUNTER))]) 60129198Scognet#define MCOUNT_DECL(s) 61129198Scognet#define MCOUNT_ENTER(s) 62129198Scognet#define MCOUNT_EXIT(s) 63129198Scognet#define PC_TO_I(p, pc) ((uintfptr_t)(pc) - (uintfptr_t)(p)->lowpc) 64129198Scognet#else 65129198Scognet#define MCOUNT_DECL(s) u_long s; 66129198Scognet#ifdef SMP 67129198Scognetextern int mcount_lock; 68129198Scognet#define MCOUNT_ENTER(s) { s = read_eflags(); disable_intr(); \ 69129198Scognet while (!atomic_cmpset_acq_int(&mcount_lock, 0, 1)) \ 70129198Scognet /* nothing */ ; } 71129198Scognet#define MCOUNT_EXIT(s) { atomic_store_rel_int(&mcount_lock, 0); \ 72129198Scognet write_eflags(s); } 73129198Scognet#else 74129198Scognet#define MCOUNT_ENTER(s) { s = read_eflags(); disable_intr(); } 75129198Scognet#define MCOUNT_EXIT(s) (write_eflags(s)) 76129198Scognet#endif 77129198Scognet#endif /* GUPROF */ 78129198Scognet 79129198Scognet#else /* !_KERNEL */ 80129198Scognet 81129198Scognet#define FUNCTION_ALIGNMENT 4 82129198Scognet 83129198Scognet#define _MCOUNT_DECL static __inline void _mcount 84129198Scognet 85129198Scognet#define MCOUNT 86129198Scognet 87129198Scognettypedef unsigned int uintfptr_t; 88129198Scognet 89129198Scognet#endif /* _KERNEL */ 90129198Scognet 91129198Scognet/* 92129198Scognet * An unsigned integral type that can hold non-negative difference between 93129198Scognet * function pointers. 94129198Scognet */ 95129198Scognettypedef u_int fptrdiff_t; 96129198Scognet 97129198Scognet#ifdef _KERNEL 98129198Scognet 99129198Scognetvoid mcount(uintfptr_t frompc, uintfptr_t selfpc); 100129198Scognetvoid kmupetext(uintfptr_t nhighpc); 101129198Scognet 102129198Scognet#ifdef GUPROF 103129198Scognetstruct gmonparam; 104129198Scognet 105129198Scognetvoid nullfunc_loop_profiled(void); 106129198Scognetvoid nullfunc_profiled(void); 107129198Scognetvoid startguprof(struct gmonparam *p); 108129198Scognetvoid stopguprof(struct gmonparam *p); 109129198Scognet#else 110129198Scognet#define startguprof(p) 111129198Scognet#define stopguprof(p) 112129198Scognet#endif /* GUPROF */ 113129198Scognet 114129198Scognet#else /* !_KERNEL */ 115129198Scognet 116129198Scognet#include <sys/cdefs.h> 117129198Scognet 118129198Scognet__BEGIN_DECLS 119129198Scognet#ifdef __GNUC__ 120129198Scognetvoid mcount(void) __asm(".mcount"); 121129198Scognet#endif 122129198Scognet__END_DECLS 123129198Scognet 124129198Scognet#endif /* _KERNEL */ 125129198Scognet 126129198Scognet#ifdef GUPROF 127129198Scognet/* XXX doesn't quite work outside kernel yet. */ 128129198Scognetextern int cputime_bias; 129129198Scognet 130129198Scognet__BEGIN_DECLS 131129198Scognetint cputime(void); 132129198Scognetvoid empty_loop(void); 133129198Scognetvoid mexitcount(uintfptr_t selfpc); 134129198Scognetvoid nullfunc(void); 135129198Scognetvoid nullfunc_loop(void); 136129198Scognet__END_DECLS 137129198Scognet#endif 138129198Scognet 139129198Scognet#endif /* !_MACHINE_PROFILE_H_ */ 140