-#ifndef _LTTNG_WRAPPER_FTRACE_H
-#define _LTTNG_WRAPPER_FTRACE_H
-
-/*
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+ *
* wrapper/ftrace.h
*
* wrapper around vmalloc_sync_all. Using KALLSYMS to get its address when
* modules.
*
* Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#ifndef _LTTNG_WRAPPER_FTRACE_H
+#define _LTTNG_WRAPPER_FTRACE_H
+
#include <linux/ftrace.h>
+#include <linux/version.h>
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0))
+#include <../kernel/trace/trace.h>
+#endif
#ifdef CONFIG_KALLSYMS
if (register_ftrace_function_probe_sym) {
return register_ftrace_function_probe_sym(glob, ops, data);
} else {
- printk(KERN_WARNING "LTTng: register_ftrace_function_probe symbol lookup failed.\n");
+ printk_once(KERN_WARNING "LTTng: register_ftrace_function_probe symbol lookup failed.\n");
return -EINVAL;
}
}
if (unregister_ftrace_function_probe_sym) {
unregister_ftrace_function_probe_sym(glob, ops, data);
} else {
- printk(KERN_WARNING "LTTng: unregister_ftrace_function_probe symbol lookup failed.\n");
+ printk_once(KERN_WARNING "LTTng: unregister_ftrace_function_probe symbol lookup failed.\n");
WARN_ON(1);
}
}