59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
/* $NetBSD: tprof.h,v 1.6 2018/07/13 07:56:29 maxv Exp $ */
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/*-
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* Copyright (c)2008,2009,2010 YAMAMOTO Takashi,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _DEV_TPROF_TPROF_H_
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#define _DEV_TPROF_TPROF_H_
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/*
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* definitions used by backend drivers
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*/
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#include <sys/types.h>
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#include <dev/tprof/tprof_types.h>
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typedef struct tprof_backend_ops {
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uint64_t (*tbo_estimate_freq)(void); /* samples per second */
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uint32_t (*tbo_ident)(void);
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int (*tbo_start)(const tprof_param_t *);
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void (*tbo_stop)(const tprof_param_t *);
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} tprof_backend_ops_t;
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#define TPROF_BACKEND_VERSION 3
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int tprof_backend_register(const char *, const tprof_backend_ops_t *, int);
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int tprof_backend_unregister(const char *);
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typedef struct {
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uintptr_t tfi_pc; /* program counter */
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bool tfi_inkernel; /* if tfi_pc is in the kernel address space */
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} tprof_frame_info_t;
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void tprof_sample(void *, const tprof_frame_info_t *);
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#endif /* _DEV_TPROF_TPROF_H_ */
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