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 https://opensource.org/licenses/CDDL-1.0. 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 #if defined(_KERNEL) 23 #if defined(HAVE_DECLARE_EVENT_CLASS) 24 25 #undef TRACE_SYSTEM 26 #define TRACE_SYSTEM zfs 27 28 #undef TRACE_SYSTEM_VAR 29 #define TRACE_SYSTEM_VAR zfs_dbgmsg 30 31 #if !defined(_TRACE_DBGMSG_H) || defined(TRACE_HEADER_MULTI_READ) 32 #define _TRACE_DBGMSG_H 33 34 #include <linux/tracepoint.h> 35 36 /* 37 * This file defines tracepoint events for use by the dbgmsg(), 38 * dprintf(), and SET_ERROR() interfaces. These are grouped here because 39 * they all provide a way to store simple messages in the debug log (as 40 * opposed to events used by the DTRACE_PROBE interfaces which typically 41 * dump structured data). 42 * 43 * This header is included inside the trace.h multiple inclusion guard, 44 * and it is guarded above against direct inclusion, so it and need not 45 * be guarded separately. 46 */ 47 48 /* 49 * Generic support for one argument tracepoints of the form: 50 * 51 * DTRACE_PROBE1(..., 52 * const char *, ...); 53 */ 54 /* BEGIN CSTYLED */ 55 DECLARE_EVENT_CLASS(zfs_dprintf_class, 56 TP_PROTO(const char *msg), 57 TP_ARGS(msg), 58 TP_STRUCT__entry( 59 __string(msg, msg) 60 ), 61 TP_fast_assign( 62 __assign_str(msg, msg); 63 ), 64 TP_printk("%s", __get_str(msg)) 65 ); 66 /* END CSTYLED */ 67 68 #define DEFINE_DPRINTF_EVENT(name) \ 69 DEFINE_EVENT(zfs_dprintf_class, name, \ 70 TP_PROTO(const char *msg), \ 71 TP_ARGS(msg)) 72 DEFINE_DPRINTF_EVENT(zfs_zfs__dprintf); 73 74 #endif /* _TRACE_DBGMSG_H */ 75 76 #undef TRACE_INCLUDE_PATH 77 #undef TRACE_INCLUDE_FILE 78 #define TRACE_INCLUDE_PATH sys 79 #define TRACE_INCLUDE_FILE trace_dbgmsg 80 #include <trace/define_trace.h> 81 82 #else 83 84 DEFINE_DTRACE_PROBE1(zfs__dprintf); 85 86 #endif /* HAVE_DECLARE_EVENT_CLASS */ 87 #endif /* _KERNEL */ 88