profile.h revision 256281
1/* $OpenBSD: profile.h,v 1.2 1999/01/27 04:46:05 imp Exp $ */ 2/*- 3 * Copyright (c) 1992, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Ralph Campbell. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 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 * from: @(#)profile.h 8.1 (Berkeley) 6/10/93 34 * JNPR: profile.h,v 1.4 2006/12/02 09:53:41 katta 35 * $FreeBSD: stable/10/sys/mips/include/profile.h 210606 2010-07-29 14:04:29Z jchandra $ 36 */ 37#ifndef _MACHINE_PROFILE_H_ 38#define _MACHINE_PROFILE_H_ 39 40#define _MCOUNT_DECL void ___mcount 41 42/*XXX The cprestore instruction is a "dummy" to shut up as(1). */ 43 44/*XXX This is not MIPS64 safe. */ 45 46#define MCOUNT \ 47 __asm(".globl _mcount;" \ 48 ".type _mcount,@function;" \ 49 "_mcount:;" \ 50 ".set noreorder;" \ 51 ".set noat;" \ 52 ".cpload $25;" \ 53 ".cprestore 4;" \ 54 "sw $4,8($29);" \ 55 "sw $5,12($29);" \ 56 "sw $6,16($29);" \ 57 "sw $7,20($29);" \ 58 "sw $1,0($29);" \ 59 "sw $31,4($29);" \ 60 "move $5,$31;" \ 61 "jal ___mcount;" \ 62 "move $4,$1;" \ 63 "lw $4,8($29);" \ 64 "lw $5,12($29);" \ 65 "lw $6,16($29);" \ 66 "lw $7,20($29);" \ 67 "lw $31,4($29);" \ 68 "lw $1,0($29);" \ 69 "addu $29,$29,8;" \ 70 "j $31;" \ 71 "move $31,$1;" \ 72 ".set reorder;" \ 73 ".set at"); 74 75#ifdef _KERNEL 76/* 77 * The following two macros do splhigh and splx respectively. 78 * They have to be defined this way because these are real 79 * functions on the MIPS, and we do not want to invoke mcount 80 * recursively. 81 */ 82 83#define MCOUNT_DECL(s) u_long s; 84#ifdef SMP 85extern int mcount_lock; 86#define MCOUNT_ENTER(s) { \ 87 s = intr_disable(); \ 88 while (!atomic_cmpset_acq_int(&mcount_lock, 0, 1)) \ 89 /* nothing */ ; \ 90} 91#define MCOUNT_EXIT(s) { \ 92 atomic_store_rel_int(&mcount_lock, 0); \ 93 intr_restore(s); \ 94} 95#else 96#define MCOUNT_ENTER(s) { s = intr_disable(); } 97#define MCOUNT_EXIT(s) (intr_restore(s)) 98#endif 99 100/* REVISIT for mips */ 101/* 102 * Config generates something to tell the compiler to align functions on 16 103 * byte boundaries. A strict alignment is good for keeping the tables small. 104 */ 105#define FUNCTION_ALIGNMENT 16 106 107#ifdef GUPROF 108struct gmonparam; 109void stopguprof __P((struct gmonparam *p)); 110#else 111#define stopguprof(p) 112#endif /* GUPROF */ 113 114#else /* !_KERNEL */ 115 116#define FUNCTION_ALIGNMENT 4 117 118#ifdef __mips_n64 119typedef u_long uintfptr_t; 120#else 121typedef u_int uintfptr_t; 122#endif 123 124#endif /* _KERNEL */ 125 126/* 127 * An unsigned integral type that can hold non-negative difference between 128 * function pointers. 129 */ 130#ifdef __mips_n64 131typedef u_long fptrdiff_t; 132#else 133typedef u_int fptrdiff_t; 134#endif 135 136#ifdef _KERNEL 137 138void mcount(uintfptr_t frompc, uintfptr_t selfpc); 139 140#ifdef GUPROF 141struct gmonparam; 142 143void nullfunc_loop_profiled(void); 144void nullfunc_profiled(void); 145void startguprof(struct gmonparam *p); 146void stopguprof(struct gmonparam *p); 147#else 148#define startguprof(p) 149#define stopguprof(p) 150#endif /* GUPROF */ 151 152#else /* !_KERNEL */ 153 154#include <sys/cdefs.h> 155 156__BEGIN_DECLS 157#ifdef __GNUC__ 158#ifdef __ELF__ 159void mcount(void) __asm(".mcount"); 160#else 161void mcount(void) __asm("mcount"); 162#endif 163#endif 164void _mcount(uintfptr_t frompc, uintfptr_t selfpc); 165__END_DECLS 166 167#endif /* _KERNEL */ 168 169#ifdef GUPROF 170/* XXX doesn't quite work outside kernel yet. */ 171extern int cputime_bias; 172 173__BEGIN_DECLS 174int cputime(void); 175void empty_loop(void); 176void mexitcount(uintfptr_t selfpc); 177void nullfunc(void); 178void nullfunc_loop(void); 179__END_DECLS 180#endif 181 182#endif /* !_MACHINE_PROFILE_H_ */ 183