Remove lttng-ftrace integration

[lttng-modules.git] / wrapper / ftrace.h

diff --git a/wrapper/ftrace.h b/wrapper/ftrace.h
deleted file mode 100644 (file)
index eb4f788..0000000
--- a/wrapper/ftrace.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/* 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
- * available, else we need to have a kernel that exports this function to GPL
- * modules.
- *
- * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#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
-
-#include <linux/kallsyms.h>
-#include <wrapper/kallsyms.h>
-
-static inline
-int wrapper_register_ftrace_function_probe(char *glob,
-               struct ftrace_probe_ops *ops, void *data)
-{
-       int (*register_ftrace_function_probe_sym)(char *glob,
-                       struct ftrace_probe_ops *ops, void *data);
-
-       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_once(KERN_WARNING "LTTng: register_ftrace_function_probe symbol lookup failed.\n");
-               return -EINVAL;
-       }
-}
-
-static inline
-void wrapper_unregister_ftrace_function_probe(char *glob,
-               struct ftrace_probe_ops *ops, void *data)
-{
-       void (*unregister_ftrace_function_probe_sym)(char *glob,
-                       struct ftrace_probe_ops *ops, void *data);
-
-       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_once(KERN_WARNING "LTTng: unregister_ftrace_function_probe symbol lookup failed.\n");
-               WARN_ON(1);
-       }
-}
-
-#else
-
-static inline
-int wrapper_register_ftrace_function_probe(char *glob,
-               struct ftrace_probe_ops *ops, void *data)
-{
-       return register_ftrace_function_probe(glob, ops, data);
-}
-
-static inline
-void wrapper_unregister_ftrace_function_probe(char *glob,
-               struct ftrace_probe_ops *ops, void *data)
-{
-       return unregister_ftrace_function_probe(glob, ops, data);
-}
-#endif
-
-#endif /* _LTTNG_WRAPPER_FTRACE_H */