include/sys/trace_dbgmsg.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /* Do not include this file directly. Please use <sys/trace.h> instead. */
  23 #ifndef _SYS_TRACE_DBGMSG_INDIRECT
  24 #error "trace_dbgmsg.h included directly"
  25 #endif
  26
  27 /*
  28  * This file defines tracepoint events for use by the dbgmsg(),
  29  * dprintf(), and SET_ERROR() interfaces. These are grouped here because
  30  * they all provide a way to store simple messages in the debug log (as
  31  * opposed to events used by the DTRACE_PROBE interfaces which typically
  32  * dump structured data).
  33  *
  34  * This header is included inside the trace.h multiple inclusion guard,
  35  * and it is guarded above against direct inclusion, so it and need not
  36  * be guarded separately.
  37  */
  38
  39 /*
  40  * Generic support for one argument tracepoints of the form:
  41  *
  42  * DTRACE_PROBE1(...,
  43  *     const char *, ...);
  44  */
  45 /* BEGIN CSTYLED */
  46 DECLARE_EVENT_CLASS(zfs_dprintf_class,
  47         TP_PROTO(const char *msg),
  48         TP_ARGS(msg),
  49         TP_STRUCT__entry(
  50             __string(msg, msg)
  51         ),
  52         TP_fast_assign(
  53             __assign_str(msg, msg);
  54         ),
  55         TP_printk("%s", __get_str(msg))
  56 );
  57 /* END CSTYLED */
  58
  59 /* BEGIN CSTYLED */
  60 #define DEFINE_DPRINTF_EVENT(name) \
  61 DEFINE_EVENT(zfs_dprintf_class, name, \
  62         TP_PROTO(const char *msg), \
  63         TP_ARGS(msg))
  64 /* END CSTYLED */
  65 DEFINE_DPRINTF_EVENT(zfs_zfs__dprintf);