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/* $OpenBSD: profile.h,v 1.2 1999/01/27 04:46:05 imp Exp $ */
/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: @(#)profile.h 8.1 (Berkeley) 6/10/93
* JNPR: profile.h,v 1.4 2006/12/02 09:53:41 katta
* $FreeBSD: release/9.1.0/sys/mips/include/profile.h 210606 2010-07-29 14:04:29Z jchandra $
*/
#ifndef _MACHINE_PROFILE_H_
#define _MACHINE_PROFILE_H_
#define _MCOUNT_DECL void ___mcount
/*XXX The cprestore instruction is a "dummy" to shut up as(1). */
/*XXX This is not MIPS64 safe. */
#define MCOUNT \
__asm(".globl _mcount;" \
".type _mcount,@function;" \
"_mcount:;" \
".set noreorder;" \
".set noat;" \
".cpload $25;" \
".cprestore 4;" \
"sw $4,8($29);" \
"sw $5,12($29);" \
"sw $6,16($29);" \
"sw $7,20($29);" \
"sw $1,0($29);" \
"sw $31,4($29);" \
"move $5,$31;" \
"jal ___mcount;" \
"move $4,$1;" \
"lw $4,8($29);" \
"lw $5,12($29);" \
"lw $6,16($29);" \
"lw $7,20($29);" \
"lw $31,4($29);" \
"lw $1,0($29);" \
"addu $29,$29,8;" \
"j $31;" \
"move $31,$1;" \
".set reorder;" \
".set at");
#ifdef _KERNEL
/*
* The following two macros do splhigh and splx respectively.
* They have to be defined this way because these are real
* functions on the MIPS, and we do not want to invoke mcount
* recursively.
*/
#define MCOUNT_DECL(s) u_long s;
#ifdef SMP
extern int mcount_lock;
#define MCOUNT_ENTER(s) { \
s = intr_disable(); \
while (!atomic_cmpset_acq_int(&mcount_lock, 0, 1)) \
/* nothing */ ; \
}
#define MCOUNT_EXIT(s) { \
atomic_store_rel_int(&mcount_lock, 0); \
intr_restore(s); \
}
#else
#define MCOUNT_ENTER(s) { s = intr_disable(); }
#define MCOUNT_EXIT(s) (intr_restore(s))
#endif
/* REVISIT for mips */
/*
* Config generates something to tell the compiler to align functions on 16
* byte boundaries. A strict alignment is good for keeping the tables small.
*/
#define FUNCTION_ALIGNMENT 16
#ifdef GUPROF
struct gmonparam;
void stopguprof __P((struct gmonparam *p));
#else
#define stopguprof(p)
#endif /* GUPROF */
#else /* !_KERNEL */
#define FUNCTION_ALIGNMENT 4
#ifdef __mips_n64
typedef u_long uintfptr_t;
#else
typedef u_int uintfptr_t;
#endif
#endif /* _KERNEL */
/*
* An unsigned integral type that can hold non-negative difference between
* function pointers.
*/
#ifdef __mips_n64
typedef u_long fptrdiff_t;
#else
typedef u_int fptrdiff_t;
#endif
#ifdef _KERNEL
void mcount(uintfptr_t frompc, uintfptr_t selfpc);
#ifdef GUPROF
struct gmonparam;
void nullfunc_loop_profiled(void);
void nullfunc_profiled(void);
void startguprof(struct gmonparam *p);
void stopguprof(struct gmonparam *p);
#else
#define startguprof(p)
#define stopguprof(p)
#endif /* GUPROF */
#else /* !_KERNEL */
#include <sys/cdefs.h>
__BEGIN_DECLS
#ifdef __GNUC__
#ifdef __ELF__
void mcount(void) __asm(".mcount");
#else
void mcount(void) __asm("mcount");
#endif
#endif
void _mcount(uintfptr_t frompc, uintfptr_t selfpc);
__END_DECLS
#endif /* _KERNEL */
#ifdef GUPROF
/* XXX doesn't quite work outside kernel yet. */
extern int cputime_bias;
__BEGIN_DECLS
int cputime(void);
void empty_loop(void);
void mexitcount(uintfptr_t selfpc);
void nullfunc(void);
void nullfunc_loop(void);
__END_DECLS
#endif
#endif /* !_MACHINE_PROFILE_H_ */