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 #include <sys/types.h> 36 37 /* 38 * This file defines tracepoint events for use by the dbgmsg(), 39 * dprintf(), and SET_ERROR() interfaces. These are grouped here because 40 * they all provide a way to store simple messages in the debug log (as 41 * opposed to events used by the DTRACE_PROBE interfaces which typically 42 * dump structured data). 43 * 44 * This header is included inside the trace.h multiple inclusion guard, 45 * and it is guarded above against direct inclusion, so it and need not 46 * be guarded separately. 47 */ 48 49 /* 50 * Generic support for one argument tracepoints of the form: 51 * 52 * DTRACE_PROBE1(..., 53 * const char *, ...); 54 */ 55 /* BEGIN CSTYLED */ 56 DECLARE_EVENT_CLASS(zfs_dprintf_class, 57 TP_PROTO(const char *msg), 58 TP_ARGS(msg), 59 TP_STRUCT__entry( 60 __string(msg, msg) 61 ), 62 TP_fast_assign( 63 __assign_str_impl(msg, msg); 64 ), 65 TP_printk("%s", __get_str(msg)) 66 ); 67 /* END CSTYLED */ 68 69 #define DEFINE_DPRINTF_EVENT(name) \ 70 DEFINE_EVENT(zfs_dprintf_class, name, \ 71 TP_PROTO(const char *msg), \ 72 TP_ARGS(msg)) 73 DEFINE_DPRINTF_EVENT(zfs_zfs__dprintf); 74 75 #endif /* _TRACE_DBGMSG_H */ 76 77 #undef TRACE_INCLUDE_PATH 78 #undef TRACE_INCLUDE_FILE 79 #define TRACE_INCLUDE_PATH sys 80 #define TRACE_INCLUDE_FILE trace_dbgmsg 81 #include <trace/define_trace.h> 82 83 #else 84 85 DEFINE_DTRACE_PROBE1(zfs__dprintf); 86 87 #endif /* HAVE_DECLARE_EVENT_CLASS */ 88 #endif /* _KERNEL */ 89