profile.h revision 202031
1178172Simp/* $OpenBSD: profile.h,v 1.2 1999/01/27 04:46:05 imp Exp $ */ 2178172Simp/*- 3178172Simp * Copyright (c) 1992, 1993 4178172Simp * The Regents of the University of California. All rights reserved. 5178172Simp * 6178172Simp * This code is derived from software contributed to Berkeley by 7178172Simp * Ralph Campbell. 8178172Simp * 9178172Simp * Redistribution and use in source and binary forms, with or without 10178172Simp * modification, are permitted provided that the following conditions 11178172Simp * are met: 12178172Simp * 1. Redistributions of source code must retain the above copyright 13178172Simp * notice, this list of conditions and the following disclaimer. 14178172Simp * 2. Redistributions in binary form must reproduce the above copyright 15178172Simp * notice, this list of conditions and the following disclaimer in the 16178172Simp * documentation and/or other materials provided with the distribution. 17178172Simp * 4. Neither the name of the University nor the names of its contributors 18178172Simp * may be used to endorse or promote products derived from this software 19178172Simp * without specific prior written permission. 20178172Simp * 21178172Simp * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22178172Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23178172Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24178172Simp * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25178172Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26178172Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27178172Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28178172Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29178172Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30178172Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31178172Simp * SUCH DAMAGE. 32178172Simp * 33178172Simp * from: @(#)profile.h 8.1 (Berkeley) 6/10/93 34178172Simp * JNPR: profile.h,v 1.4 2006/12/02 09:53:41 katta 35178172Simp * $FreeBSD: head/sys/mips/include/profile.h 202031 2010-01-10 19:50:24Z imp $ 36178172Simp */ 37178172Simp#ifndef _MACHINE_PROFILE_H_ 38178172Simp#define _MACHINE_PROFILE_H_ 39178172Simp 40178172Simp#define _MCOUNT_DECL void ___mcount 41178172Simp 42178172Simp/*XXX The cprestore instruction is a "dummy" to shut up as(1). */ 43178172Simp 44202031Simp/*XXX This is not MIPS64 safe. */ 45202031Simp 46178172Simp#define MCOUNT \ 47178172Simp __asm(".globl _mcount;" \ 48178172Simp ".type _mcount,@function;" \ 49178172Simp "_mcount:;" \ 50178172Simp ".set noreorder;" \ 51178172Simp ".set noat;" \ 52178172Simp ".cpload $25;" \ 53178172Simp ".cprestore 4;" \ 54178172Simp "sw $4,8($29);" \ 55178172Simp "sw $5,12($29);" \ 56178172Simp "sw $6,16($29);" \ 57178172Simp "sw $7,20($29);" \ 58178172Simp "sw $1,0($29);" \ 59178172Simp "sw $31,4($29);" \ 60178172Simp "move $5,$31;" \ 61178172Simp "jal ___mcount;" \ 62178172Simp "move $4,$1;" \ 63178172Simp "lw $4,8($29);" \ 64178172Simp "lw $5,12($29);" \ 65178172Simp "lw $6,16($29);" \ 66178172Simp "lw $7,20($29);" \ 67178172Simp "lw $31,4($29);" \ 68178172Simp "lw $1,0($29);" \ 69178172Simp "addu $29,$29,8;" \ 70178172Simp "j $31;" \ 71178172Simp "move $31,$1;" \ 72178172Simp ".set reorder;" \ 73178172Simp ".set at"); 74178172Simp 75178172Simp#ifdef _KERNEL 76178172Simp/* 77178172Simp * The following two macros do splhigh and splx respectively. 78178172Simp * They have to be defined this way because these are real 79178172Simp * functions on the MIPS, and we do not want to invoke mcount 80178172Simp * recursively. 81178172Simp */ 82178172Simp 83178172Simp#define MCOUNT_DECL(s) u_long s; 84178172Simp#ifdef SMP 85178172Simpextern int mcount_lock; 86178172Simp#define MCOUNT_ENTER(s) { \ 87178172Simp s = disable_intr(); \ 88178172Simp while (!atomic_cmpset_acq_int(&mcount_lock, 0, 1)) \ 89178172Simp /* nothing */ ; \ 90178172Simp} 91178172Simp#define MCOUNT_EXIT(s) { \ 92178172Simp atomic_store_rel_int(&mcount_lock, 0); \ 93178172Simp enableintr(s); \ 94178172Simp} 95178172Simp#else 96178172Simp#define MCOUNT_ENTER(s) { s = disable_intr(); } 97178172Simp#define MCOUNT_EXIT(s) (enableintr(s)) 98178172Simp#endif 99178172Simp 100178172Simp/* REVISIT for mips */ 101178172Simp/* 102178172Simp * Config generates something to tell the compiler to align functions on 16 103178172Simp * byte boundaries. A strict alignment is good for keeping the tables small. 104178172Simp */ 105178172Simp#define FUNCTION_ALIGNMENT 16 106178172Simp 107178172Simp#ifdef GUPROF 108178172Simpstruct gmonparam; 109178172Simpvoid stopguprof __P((struct gmonparam *p)); 110178172Simp#else 111178172Simp#define stopguprof(p) 112178172Simp#endif /* GUPROF */ 113178172Simp 114178172Simp#else /* !_KERNEL */ 115178172Simp 116178172Simp#define FUNCTION_ALIGNMENT 4 117178172Simp 118178172Simptypedef unsigned int uintfptr_t; 119178172Simp 120178172Simp#endif /* _KERNEL */ 121178172Simp 122178172Simp/* 123178172Simp * An unsigned integral type that can hold non-negative difference between 124178172Simp * function pointers. 125178172Simp */ 126178172Simptypedef u_int fptrdiff_t; 127178172Simp 128178172Simp#ifdef _KERNEL 129178172Simp 130178172Simpvoid mcount(uintfptr_t frompc, uintfptr_t selfpc); 131178172Simp 132178172Simp#ifdef GUPROF 133178172Simpstruct gmonparam; 134178172Simp 135178172Simpvoid nullfunc_loop_profiled(void); 136178172Simpvoid nullfunc_profiled(void); 137178172Simpvoid startguprof(struct gmonparam *p); 138178172Simpvoid stopguprof(struct gmonparam *p); 139178172Simp#else 140178172Simp#define startguprof(p) 141178172Simp#define stopguprof(p) 142178172Simp#endif /* GUPROF */ 143178172Simp 144178172Simp#else /* !_KERNEL */ 145178172Simp 146178172Simp#include <sys/cdefs.h> 147178172Simp 148178172Simp__BEGIN_DECLS 149178172Simp#ifdef __GNUC__ 150178172Simp#ifdef __ELF__ 151178172Simpvoid mcount(void) __asm(".mcount"); 152178172Simp#else 153178172Simpvoid mcount(void) __asm("mcount"); 154178172Simp#endif 155178172Simp#endif 156178172Simpvoid _mcount(uintfptr_t frompc, uintfptr_t selfpc); 157178172Simp__END_DECLS 158178172Simp 159178172Simp#endif /* _KERNEL */ 160178172Simp 161178172Simp#ifdef GUPROF 162178172Simp/* XXX doesn't quite work outside kernel yet. */ 163178172Simpextern int cputime_bias; 164178172Simp 165178172Simp__BEGIN_DECLS 166178172Simpint cputime(void); 167178172Simpvoid empty_loop(void); 168178172Simpvoid mexitcount(uintfptr_t selfpc); 169178172Simpvoid nullfunc(void); 170178172Simpvoid nullfunc_loop(void); 171178172Simp__END_DECLS 172178172Simp#endif 173178172Simp 174178172Simp#endif /* !_MACHINE_PROFILE_H_ */ 175