FreeBSD/Linux Kernel Cross Reference
sys/sys/coverage.h

     /*-
      * 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_ */

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