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ftrace: Allow for function tracing instance to filter functions

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Create a "set_ftrace_filter" and "set_ftrace_notrace" files in the instance
directories to let users filter of functions to trace for the given instance.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2014-01-10 16:17:45 -05:00 • committed by Steven Rostedt
parent e3b3e2e847
commit 591dffdade
5 changed files with 96 additions and 14 deletions
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2
include/linux/ftrace.h
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@ -92,6 +92,7 @@ typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip,
* STUB - The ftrace_ops is just a place holder.
* INITIALIZED - The ftrace_ops has already been initialized (first use time
* register_ftrace_function() is called, it will initialized the ops)
* DELETED - The ops are being deleted, do not let them be registered again.
*/
enum {
FTRACE_OPS_FL_ENABLED = 1 << 0,
@ -103,6 +104,7 @@ enum {
FTRACE_OPS_FL_RECURSION_SAFE = 1 << 6,
FTRACE_OPS_FL_STUB = 1 << 7,
FTRACE_OPS_FL_INITIALIZED = 1 << 8,
FTRACE_OPS_FL_DELETED = 1 << 9,
};
/*