/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (C) 2018 The FreeBSD Foundation. All rights reserved.
 * Copyright (C) 2018, 2019 Andrew Turner.
 *
 * This software was developed by Mitchell Horne under sponsorship of
 * the FreeBSD Foundation.
 *
 * This software was developed by SRI International and the University of
 * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
 * ("CTSRD"), as part of the DARPA CRASH research programme.
 *
 * 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 AUTHOR 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 AUTHOR 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.
 *
 * $FreeBSD$
 */

#ifndef _SYS_COVERAGE_H_
#define _SYS_COVERAGE_H_

#if !defined(_KERNEL) && !defined(_SYS_KCOV_H_)
#error Do not include this file directly in userspace, use sys/kcov.h
#endif

#define	COV_CMP_CONST		(1 << 0)
#define	COV_CMP_SIZE(x)		((x) << 1)
#define	COV_CMP_MASK		(3 << 1)
#define	COV_CMP_GET_SIZE(x)	(((x) >> 1) & 3)

#ifdef _KERNEL
typedef void (*cov_trace_pc_t)(uintptr_t);
typedef bool (*cov_trace_cmp_t)(uint64_t, uint64_t, uint64_t, uint64_t);

void cov_register_cmp(cov_trace_cmp_t);
void cov_unregister_cmp(void);
void cov_register_pc(cov_trace_pc_t);
void cov_unregister_pc(void);
#endif

#endif /* _SYS_COVERAGE_H_ */