1 files changed, 137 insertions, 0 deletions
diff --git a/include/sys/trace_dbgmsg.h b/include/sys/trace_dbgmsg.h
new file mode 100644
index 000000000..24b34bcf3
--- /dev/null
+++ b/include/sys/trace_dbgmsg.h
@@ -0,0 +1,137 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/* Do not include this file directly. Please use <sys/trace.h> instead. */
+#ifndef _SYS_TRACE_DBGMSG_INDIRECT
+#error "trace_dbgmsg.h included directly"
+#endif
+
+/*
+ * This file defines tracepoint events for use by the dbgmsg(),
+ * dprintf(), and SET_ERROR() interfaces. These are grouped here because
+ * they all provide a way to store simple messages in the debug log (as
+ * opposed to events used by the DTRACE_PROBE interfaces which typically
+ * dump structured data).
+ *
+ * This header is included inside the trace.h multiple inclusion guard,
+ * and it is guarded above against direct inclusion, so it and need not
+ * be guarded separately.
+ */
+
+/*
+ * Generic support for one argument tracepoints of the form:
+ *
+ * DTRACE_PROBE1(...,
+ *     const char *, ...);
+ */
+
+DECLARE_EVENT_CLASS(zfs_dbgmsg_class,
+	TP_PROTO(const char *msg),
+	TP_ARGS(msg),
+	TP_STRUCT__entry(
+	    __string(msg, msg)
+	),
+	TP_fast_assign(
+	    __assign_str(msg, msg);
+	),
+	TP_printk("%s", __get_str(msg))
+);
+
+#define	DEFINE_DBGMSG_EVENT(name) \
+DEFINE_EVENT(zfs_dbgmsg_class, name, \
+	TP_PROTO(const char *msg), \
+	TP_ARGS(msg))
+DEFINE_DBGMSG_EVENT(zfs_zfs__dbgmsg);
+
+
+/*
+ * Generic support for four argument tracepoints of the form:
+ *
+ * DTRACE_PROBE4(...,
+ *     const char *, ...,
+ *     const char *, ...,
+ *     int, ...,
+ *     const char *, ...);
+ */
+
+DECLARE_EVENT_CLASS(zfs_dprintf_class,
+	TP_PROTO(const char *file, const char *function, int line,
+	    const char *msg),
+	TP_ARGS(file, function, line, msg),
+	TP_STRUCT__entry(
+	    __field(const char *,	file)
+	    __field(const char *,	function)
+	    __field(int,		line)
+	    __string(msg, msg)
+	),
+	TP_fast_assign(
+	    __entry->file		= file;
+	    __entry->function		= function;
+	    __entry->line		= line;
+	    __assign_str(msg, msg);
+	),
+	TP_printk("%s:%d:%s(): %s", __entry->file, __entry->line,
+	    __entry->function, __get_str(msg))
+);
+
+#define	DEFINE_DPRINTF_EVENT(name) \
+DEFINE_EVENT(zfs_dprintf_class, name, \
+	TP_PROTO(const char *file, const char *function, int line, \
+	    const char *msg), \
+	TP_ARGS(file, function, line, msg))
+DEFINE_DPRINTF_EVENT(zfs_zfs__dprintf);
+
+/*
+ * Generic support for four argument tracepoints of the form:
+ *
+ * DTRACE_PROBE4(...,
+ *     const char *, ...,
+ *     const char *, ...,
+ *     int, ...,
+ *     uintptr_t, ...);
+ */
+
+DECLARE_EVENT_CLASS(zfs_set_error_class,
+	TP_PROTO(const char *file, const char *function, int line,
+	    uintptr_t error),
+	TP_ARGS(file, function, line, error),
+	TP_STRUCT__entry(
+	    __field(const char *,	file)
+	    __field(const char *,	function)
+	    __field(int,		line)
+	    __field(uintptr_t,		error)
+	),
+	TP_fast_assign(
+	    __entry->file = strchr(file, '/') ? strrchr(file, '/') + 1 : file;
+	    __entry->function		= function;
+	    __entry->line		= line;
+	    __entry->error		= error;
+	),
+	TP_printk("%s:%d:%s(): error 0x%lx", __entry->file, __entry->line,
+	    __entry->function, __entry->error)
+);
+
+#define	DEFINE_SET_ERROR_EVENT(name) \
+DEFINE_EVENT(zfs_set_error_class, name, \
+	TP_PROTO(const char *file, const char *function, int line, \
+	    uintptr_t error), \
+	TP_ARGS(file, function, line, error))
+DEFINE_SET_ERROR_EVENT(zfs_set__error);