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248c7ed0d2
Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #17861
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
// SPDX-License-Identifier: CDDL-1.0
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or https://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
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* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
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* Copyright (c) 2012, Joyent, Inc. All rights reserved.
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*/
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#ifndef _SYS_TRACE_H
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#define _SYS_TRACE_H
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/*
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* DTrace SDT probes have different signatures in userland than they do in
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* the kernel. If they're being used in kernel code, re-define them out of
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* existence for their counterparts in libzpool.
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*
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* Here's an example of how to use the set-error probes in userland:
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* zfs$target:::set-error /arg0 == EBUSY/ {stack();}
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*
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* Here's an example of how to use DTRACE_PROBE probes in userland:
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* If there is a probe declared as follows:
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* DTRACE_PROBE2(zfs__probe_name, uint64_t, blkid, dnode_t *, dn);
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* Then you can use it as follows:
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* zfs$target:::probe2 /copyinstr(arg0) == "zfs__probe_name"/
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* {printf("%u %p\n", arg1, arg2);}
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*/
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#ifdef DTRACE_PROBE
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#undef DTRACE_PROBE
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#endif /* DTRACE_PROBE */
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#define DTRACE_PROBE(a)
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#ifdef DTRACE_PROBE1
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#undef DTRACE_PROBE1
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#endif /* DTRACE_PROBE1 */
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#define DTRACE_PROBE1(a, b, c)
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#ifdef DTRACE_PROBE2
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#undef DTRACE_PROBE2
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#endif /* DTRACE_PROBE2 */
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#define DTRACE_PROBE2(a, b, c, d, e)
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#ifdef DTRACE_PROBE3
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#undef DTRACE_PROBE3
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#endif /* DTRACE_PROBE3 */
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#define DTRACE_PROBE3(a, b, c, d, e, f, g)
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#ifdef DTRACE_PROBE4
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#undef DTRACE_PROBE4
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#endif /* DTRACE_PROBE4 */
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#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i)
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#endif /* _SYS_TRACE_H */
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