1 // SPDX-License-Identifier: CDDL-1.0 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License (the "License"). 7 * You may not use this file except in compliance with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or https://opensource.org/licenses/CDDL-1.0. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 #if defined(_KERNEL) 24 #if defined(HAVE_DECLARE_EVENT_CLASS) 25 26 #undef TRACE_SYSTEM 27 #define TRACE_SYSTEM zfs 28 29 #undef TRACE_SYSTEM_VAR 30 #define TRACE_SYSTEM_VAR zfs_dbgmsg 31 32 #if !defined(_TRACE_DBGMSG_H) || defined(TRACE_HEADER_MULTI_READ) 33 #define _TRACE_DBGMSG_H 34 35 #include <linux/tracepoint.h> 36 #include <sys/types.h> 37 38 /* 39 * This file defines tracepoint events for use by the dbgmsg(), 40 * dprintf(), and SET_ERROR() interfaces. These are grouped here because 41 * they all provide a way to store simple messages in the debug log (as 42 * opposed to events used by the DTRACE_PROBE interfaces which typically 43 * dump structured data). 44 * 45 * This header is included inside the trace.h multiple inclusion guard, 46 * and it is guarded above against direct inclusion, so it and need not 47 * be guarded separately. 48 */ 49 50 /* 51 * Generic support for one argument tracepoints of the form: 52 * 53 * DTRACE_PROBE1(..., 54 * const char *, ...); 55 */ 56 /* BEGIN CSTYLED */ 57 DECLARE_EVENT_CLASS(zfs_dprintf_class, 58 TP_PROTO(const char *msg), 59 TP_ARGS(msg), 60 TP_STRUCT__entry( 61 __string(msg, msg) 62 ), 63 TP_fast_assign( 64 __assign_str_impl(msg, msg); 65 ), 66 TP_printk("%s", __get_str(msg)) 67 ); 68 /* END CSTYLED */ 69 70 #define DEFINE_DPRINTF_EVENT(name) \ 71 DEFINE_EVENT(zfs_dprintf_class, name, \ 72 TP_PROTO(const char *msg), \ 73 TP_ARGS(msg)) 74 DEFINE_DPRINTF_EVENT(zfs_zfs__dprintf); 75 76 #endif /* _TRACE_DBGMSG_H */ 77 78 #undef TRACE_INCLUDE_PATH 79 #undef TRACE_INCLUDE_FILE 80 #define TRACE_INCLUDE_PATH sys 81 #define TRACE_INCLUDE_FILE trace_dbgmsg 82 #include <trace/define_trace.h> 83 84 #else 85 86 DEFINE_DTRACE_PROBE1(zfs__dprintf); 87 88 #endif /* HAVE_DECLARE_EVENT_CLASS */ 89 #endif /* _KERNEL */ 90