diff options
| author | Steven Rostedt (VMware) | 2017-03-31 19:01:14 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) | 2017-04-18 13:49:59 -0400 |
| commit | ec19b85913486993d7d6f747beed1a711afd47d8 (patch) | |
| tree | 5dd723c7fb221fc0262c78a19a6ddb462436acb8 /kernel/trace | |
| parent | a9064f676ed6de7bf3a07e26fc19494d48fa4619 (diff) | |
ftrace: Move the probe function into the tracing directory
As nothing outside the tracing directory uses the function probes mechanism,
I'm moving the prototypes out of the include/linux/ftrace.h and into the
local kernel/trace/trace.h header. I plan on making them hook to the
trace_array structure which is local to kernel/trace, and I do not want to
expose it to the rest of the kernel. This requires that the probe functions
must also be local to tracing. But luckily nothing else uses them.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 31a4997b67c6..2ff6d49fa5ca 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -923,6 +923,31 @@ static inline void ftrace_pid_follow_fork(struct trace_array *tr, bool enable) { #endif /* CONFIG_FUNCTION_TRACER */ #if defined(CONFIG_FUNCTION_TRACER) && defined(CONFIG_DYNAMIC_FTRACE) + +struct ftrace_probe_ops { + void (*func)(unsigned long ip, + unsigned long parent_ip, + void **data); + int (*init)(struct ftrace_probe_ops *ops, + unsigned long ip, void **data); + void (*free)(struct ftrace_probe_ops *ops, + unsigned long ip, void **data); + int (*print)(struct seq_file *m, + unsigned long ip, + struct ftrace_probe_ops *ops, + void *data); +}; + +extern int +register_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops, + void *data); +extern void +unregister_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops, + void *data); +extern void +unregister_ftrace_function_probe_func(char *glob, struct ftrace_probe_ops *ops); +extern void unregister_ftrace_function_probe_all(char *glob); + void ftrace_create_filter_files(struct ftrace_ops *ops, struct dentry *parent); void ftrace_destroy_filter_files(struct ftrace_ops *ops); |