524553f56d
This will allow multiple consumers of the coverage data to be compiled into the kernel together. The only requirement is only one can be registered at a given point in time, however it is expected they will only register when the coverage data is needed. A new kernel conflig option COVERAGE is added. This will allow kcov to become a module that can be loaded as needed, or compiled into the kernel. While here clean up the #include style a little. Reviewed by: kib Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D18955
61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2018 The FreeBSD Foundation. All rights reserved.
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* Copyright (C) 2018, 2019 Andrew Turner.
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*
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* This software was developed by Mitchell Horne under sponsorship of
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* the FreeBSD Foundation.
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*
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* This software was developed by SRI International and the University of
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* Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
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* ("CTSRD"), as part of the DARPA CRASH research programme.
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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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* $FreeBSD$
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*/
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#ifndef _SYS_COVERAGE_H_
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#define _SYS_COVERAGE_H_
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#if !defined(_KERNEL) && !defined(_SYS_KCOV_H_)
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#error Do not include this file directly in userspace, use sys/kcov.h
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#endif
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#define COV_CMP_CONST (1 << 0)
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#define COV_CMP_SIZE(x) ((x) << 1)
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#define COV_CMP_MASK (3 << 1)
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#define COV_CMP_GET_SIZE(x) (((x) >> 1) & 3)
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#ifdef _KERNEL
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typedef void (*cov_trace_pc_t)(uintptr_t);
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typedef bool (*cov_trace_cmp_t)(uint64_t, uint64_t, uint64_t, uint64_t);
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void cov_register_cmp(cov_trace_cmp_t);
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void cov_unregister_cmp(void);
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void cov_register_pc(cov_trace_pc_t);
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void cov_unregister_pc(void);
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#endif
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#endif /* _SYS_COVERAGE_H_ */
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