-#ifndef _LTT_WRAPPER_FTRACE_H
-#define _LTT_WRAPPER_FTRACE_H
+#ifndef _LTTNG_WRAPPER_FTRACE_H
+#define _LTTNG_WRAPPER_FTRACE_H
/*
- * Copyright (C) 2011 Mathieu Desnoyers (mathieu.desnoyers@efficios.com)
+ * wrapper/ftrace.h
*
* wrapper around vmalloc_sync_all. Using KALLSYMS to get its address when
* available, else we need to have a kernel that exports this function to GPL
* modules.
*
- * Dual LGPL v2.1/GPL v2 license.
+ * 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
*/
#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
#include <linux/kallsyms.h>
+#include <wrapper/kallsyms.h>
static inline
int wrapper_register_ftrace_function_probe(char *glob,
int (*register_ftrace_function_probe_sym)(char *glob,
struct ftrace_probe_ops *ops, void *data);
- register_ftrace_function_probe_sym = (void *) kallsyms_lookup_name("register_ftrace_function_probe");
+ register_ftrace_function_probe_sym = (void *) kallsyms_lookup_funcptr("register_ftrace_function_probe");
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;
}
}
void (*unregister_ftrace_function_probe_sym)(char *glob,
struct ftrace_probe_ops *ops, void *data);
- unregister_ftrace_function_probe_sym = (void *) kallsyms_lookup_name("unregister_ftrace_function_probe");
+ unregister_ftrace_function_probe_sym = (void *) kallsyms_lookup_funcptr("unregister_ftrace_function_probe");
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);
}
}
}
#endif
-#endif /* _LTT_WRAPPER_FTRACE_H */
+#endif /* _LTTNG_WRAPPER_FTRACE_H */