profile.h revision 134398
1/* 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)profile.h 8.1 (Berkeley) 6/11/93 34 * $FreeBSD: head/sys/arm/include/profile.h 134398 2004-08-27 19:42:35Z marcel $ 35 */ 36 37#ifndef _MACHINE_PROFILE_H_ 38#define _MACHINE_PROFILE_H_ 39 40#ifdef _KERNEL 41 42/* 43 * Config generates something to tell the compiler to align functions on 16 44 * byte boundaries. A strict alignment is good for keeping the tables small. 45 */ 46#define FUNCTION_ALIGNMENT 16 47 48/* 49 * The kernel uses assembler stubs instead of unportable inlines. 50 * This is mainly to save a little time when profiling is not enabled, 51 * which is the usual case for the kernel. 52 */ 53#define _MCOUNT_DECL void mcount 54#define MCOUNT 55 56#ifdef GUPROF 57#define MCOUNT_DECL(s) 58#define MCOUNT_ENTER(s) 59#define MCOUNT_EXIT(s) 60#else 61#define MCOUNT_DECL(s) u_long s; 62#ifdef SMP 63extern int mcount_lock; 64#define MCOUNT_ENTER(s) { s = intr_disable(); \ 65 while (!atomic_cmpset_acq_int(&mcount_lock, 0, 1)) \ 66 /* nothing */ ; } 67#define MCOUNT_EXIT(s) { atomic_store_rel_int(&mcount_lock, 0); \ 68 intr_restore(s); } 69#else 70#define MCOUNT_ENTER(s) { s = read_eflags(); disable_intr(); } 71#define MCOUNT_EXIT(s) (write_eflags(s)) 72#endif 73#endif /* GUPROF */ 74 75void bintr(void); 76void btrap(void); 77void eintr(void); 78void user(void); 79 80#define MCOUNT_FROMPC_USER(pc) \ 81 ((pc < (uintfptr_t)VM_MAXUSER_ADDRESS) ? (uintfptr_t)user : pc) 82 83#define MCOUNT_FROMPC_INTR(pc) \ 84 ((pc >= (uintfptr_t)btrap && pc < (uintfptr_t)eintr) ? \ 85 ((pc >= (uintfptr_t)bintr) ? (uintfptr_t)bintr : \ 86 (uintfptr_t)btrap) : ~0U) 87 88#else /* !_KERNEL */ 89 90#define FUNCTION_ALIGNMENT 4 91 92#define _MCOUNT_DECL static __inline void _mcount 93 94#define MCOUNT 95 96typedef unsigned int uintfptr_t; 97 98#endif /* _KERNEL */ 99 100/* 101 * An unsigned integral type that can hold non-negative difference between 102 * function pointers. 103 */ 104typedef u_int fptrdiff_t; 105 106#ifdef _KERNEL 107 108void mcount(uintfptr_t frompc, uintfptr_t selfpc); 109 110#else /* !_KERNEL */ 111 112#include <sys/cdefs.h> 113 114__BEGIN_DECLS 115#ifdef __GNUC__ 116void mcount(void) __asm(".mcount"); 117#endif 118__END_DECLS 119 120#endif /* _KERNEL */ 121 122#endif /* !_MACHINE_PROFILE_H_ */ 123