mirror of
https://github.com/freebsd/freebsd-src
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164 lines
5.8 KiB
C
164 lines
5.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2008-2009 Stacey Son <sson@FreeBSD.org>
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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 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 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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/*
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* DTrace lockstat provider definitions
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*/
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#ifndef _SYS_LOCKSTAT_H
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#define _SYS_LOCKSTAT_H
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#ifdef _KERNEL
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/sdt.h>
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SDT_PROVIDER_DECLARE(lockstat);
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SDT_PROBE_DECLARE(lockstat, , , adaptive__acquire);
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SDT_PROBE_DECLARE(lockstat, , , adaptive__release);
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SDT_PROBE_DECLARE(lockstat, , , adaptive__spin);
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SDT_PROBE_DECLARE(lockstat, , , adaptive__block);
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SDT_PROBE_DECLARE(lockstat, , , spin__acquire);
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SDT_PROBE_DECLARE(lockstat, , , spin__release);
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SDT_PROBE_DECLARE(lockstat, , , spin__spin);
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SDT_PROBE_DECLARE(lockstat, , , rw__acquire);
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SDT_PROBE_DECLARE(lockstat, , , rw__release);
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SDT_PROBE_DECLARE(lockstat, , , rw__block);
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SDT_PROBE_DECLARE(lockstat, , , rw__spin);
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SDT_PROBE_DECLARE(lockstat, , , rw__upgrade);
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SDT_PROBE_DECLARE(lockstat, , , rw__downgrade);
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SDT_PROBE_DECLARE(lockstat, , , sx__acquire);
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SDT_PROBE_DECLARE(lockstat, , , sx__release);
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SDT_PROBE_DECLARE(lockstat, , , sx__block);
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SDT_PROBE_DECLARE(lockstat, , , sx__spin);
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SDT_PROBE_DECLARE(lockstat, , , sx__upgrade);
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SDT_PROBE_DECLARE(lockstat, , , sx__downgrade);
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SDT_PROBE_DECLARE(lockstat, , , lockmgr__acquire);
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SDT_PROBE_DECLARE(lockstat, , , lockmgr__release);
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SDT_PROBE_DECLARE(lockstat, , , lockmgr__disown);
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SDT_PROBE_DECLARE(lockstat, , , lockmgr__block);
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SDT_PROBE_DECLARE(lockstat, , , lockmgr__upgrade);
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SDT_PROBE_DECLARE(lockstat, , , lockmgr__downgrade);
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SDT_PROBE_DECLARE(lockstat, , , thread__spin);
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#define LOCKSTAT_WRITER 0
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#define LOCKSTAT_READER 1
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extern volatile bool lockstat_enabled;
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#ifdef KDTRACE_HOOKS
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#define LOCKSTAT_RECORD0(probe, lp) \
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SDT_PROBE1(lockstat, , , probe, lp)
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#define LOCKSTAT_RECORD1(probe, lp, arg1) \
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SDT_PROBE2(lockstat, , , probe, lp, arg1)
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#define LOCKSTAT_RECORD2(probe, lp, arg1, arg2) \
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SDT_PROBE3(lockstat, , , probe, lp, arg1, arg2)
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#define LOCKSTAT_RECORD3(probe, lp, arg1, arg2, arg3) \
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SDT_PROBE4(lockstat, , , probe, lp, arg1, arg2, arg3)
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#define LOCKSTAT_RECORD4(probe, lp, arg1, arg2, arg3, arg4) \
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SDT_PROBE5(lockstat, , , probe, lp, arg1, arg2, arg3, arg4)
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#define LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l) do { \
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lock_profile_obtain_lock_success(&(lp)->lock_object, false, c, wt, f, l); \
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LOCKSTAT_RECORD0(probe, lp); \
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} while (0)
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#define LOCKSTAT_PROFILE_OBTAIN_SPIN_LOCK_SUCCESS(probe, lp, c, wt, f, l) do { \
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lock_profile_obtain_lock_success(&(lp)->lock_object, true, c, wt, f, l); \
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LOCKSTAT_RECORD0(probe, lp); \
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} while (0)
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#define LOCKSTAT_PROFILE_OBTAIN_RWLOCK_SUCCESS(probe, lp, c, wt, f, l, a) do { \
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lock_profile_obtain_lock_success(&(lp)->lock_object, false, c, wt, f, l); \
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LOCKSTAT_RECORD1(probe, lp, a); \
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} while (0)
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#define LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp) do { \
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lock_profile_release_lock(&(lp)->lock_object, false); \
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LOCKSTAT_RECORD0(probe, lp); \
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} while (0)
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#define LOCKSTAT_PROFILE_RELEASE_SPIN_LOCK(probe, lp) do { \
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lock_profile_release_lock(&(lp)->lock_object, true); \
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LOCKSTAT_RECORD0(probe, lp); \
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} while (0)
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#define LOCKSTAT_PROFILE_RELEASE_RWLOCK(probe, lp, a) do { \
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lock_profile_release_lock(&(lp)->lock_object, false); \
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LOCKSTAT_RECORD1(probe, lp, a); \
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} while (0)
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#define LOCKSTAT_PROFILE_ENABLED(probe) __predict_false(lockstat_enabled)
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struct lock_object;
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uint64_t lockstat_nsecs(struct lock_object *);
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#else /* !KDTRACE_HOOKS */
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#define LOCKSTAT_RECORD0(probe, lp)
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#define LOCKSTAT_RECORD1(probe, lp, arg1)
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#define LOCKSTAT_RECORD2(probe, lp, arg1, arg2)
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#define LOCKSTAT_RECORD3(probe, lp, arg1, arg2, arg3)
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#define LOCKSTAT_RECORD4(probe, lp, arg1, arg2, arg3, arg4)
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#define LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l) \
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lock_profile_obtain_lock_success(&(lp)->lock_object, false, c, wt, f, l)
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#define LOCKSTAT_PROFILE_OBTAIN_SPIN_LOCK_SUCCESS(probe, lp, c, wt, f, l) \
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lock_profile_obtain_lock_success(&(lp)->lock_object, true, c, wt, f, l)
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#define LOCKSTAT_PROFILE_OBTAIN_RWLOCK_SUCCESS(probe, lp, c, wt, f, l, a) \
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LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l)
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#define LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp) \
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lock_profile_release_lock(&(lp)->lock_object, false)
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#define LOCKSTAT_PROFILE_RELEASE_SPIN_LOCK(probe, lp) \
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lock_profile_release_lock(&(lp)->lock_object, true)
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#define LOCKSTAT_PROFILE_RELEASE_RWLOCK(probe, lp, a) \
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LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp)
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#define LOCKSTAT_PROFILE_ENABLED(probe) 0
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#endif /* !KDTRACE_HOOKS */
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#endif /* _KERNEL */
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#endif /* _SYS_LOCKSTAT_H */
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