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/* $NetBSD: kcov.h,v 1.10 2020/06/05 17:20:57 maxv Exp $ */
/*
* Copyright (c) 2019-2020 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Siddharth Muralee.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _SYS_KCOV_H_
#define _SYS_KCOV_H_
#ifdef _KERNEL_OPT
#include "opt_kcov.h"
#endif
#include <sys/param.h>
#include <sys/types.h>
#include <sys/atomic.h>
#define KCOV_IOC_SETBUFSIZE _IOW('K', 1, uint64_t)
#define KCOV_IOC_ENABLE _IOW('K', 2, int)
#define KCOV_IOC_DISABLE _IO('K', 3)
#define KCOV_IOC_REMOTE_ATTACH _IOW('K', 10, struct kcov_ioc_remote_attach)
#define KCOV_IOC_REMOTE_DETACH _IO('K', 11)
struct kcov_ioc_remote_attach {
uint64_t subsystem;
uint64_t id;
};
#define KCOV_REMOTE_VHCI 0
#define KCOV_REMOTE_VHCI_ID(bus, port) \
(((uint64_t)bus << 32ULL) | ((uint64_t)port & 0xFFFFFFFFULL))
#define KCOV_MODE_NONE 0
#define KCOV_MODE_TRACE_PC 1
#define KCOV_MODE_TRACE_CMP 2
typedef volatile uint64_t kcov_int_t;
#define KCOV_ENTRY_SIZE sizeof(kcov_int_t)
#ifdef _KERNEL
#ifdef KCOV
void kcov_remote_register(uint64_t, uint64_t);
void kcov_remote_enter(uint64_t, uint64_t);
void kcov_remote_leave(uint64_t, uint64_t);
void kcov_silence_enter(void);
void kcov_silence_leave(void);
void kcov_lwp_free(struct lwp *);
#else
#define kcov_remote_register(s, i) __nothing
#define kcov_remote_enter(s, i) __nothing
#define kcov_remote_leave(s, i) __nothing
#define kcov_silence_enter() __nothing
#define kcov_silence_leave() __nothing
#define kcov_lwp_free(a) __nothing
#endif
#endif
#endif /* !_SYS_KCOV_H_ */
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