diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2025-04-10 15:38:30 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2025-05-08 09:36:08 -0400 |
| commit | 88cefd99ee265b18f851b911a75282146ecabc3d (patch) | |
| tree | d3b869ecb5485a50975d2f922af9b4b019b83818 /include/linux/ftrace.h | |
| parent | 54c53dfdb681f65e0cc65ddb1e05d145fea5ae60 (diff) | |
ftrace: Show subops in enabled_functions
The function graph infrastructure uses subops of the function tracer.
These are not shown in enabled_functions. Add a "subops:" section to the
enabled_functions line to show what functions are attached via subops. If
the subops is from the function_graph infrastructure, then show the entry
and return callbacks that are attached.
Here's an example of the output:
schedule_on_each_cpu (1) tramp: 0xffffffffc03ef000 (ftrace_graph_func+0x0/0x60) ->ftrace_graph_func+0x0/0x60 subops: {ent:trace_graph_entry+0x0/0x20 ret:trace_graph_return+0x0/0x150}
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20250410153830.5d97f108@gandalf.local.home
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'include/linux/ftrace.h')
| -rw-r--r-- | include/linux/ftrace.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index fbabc3d848b3..fc939ca2ff66 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -328,6 +328,7 @@ ftrace_func_t ftrace_ops_get_func(struct ftrace_ops *ops); * DIRECT - Used by the direct ftrace_ops helper for direct functions * (internal ftrace only, should not be used by others) * SUBOP - Is controlled by another op in field managed. + * GRAPH - Is a component of the fgraph_ops structure */ enum { FTRACE_OPS_FL_ENABLED = BIT(0), @@ -349,6 +350,7 @@ enum { FTRACE_OPS_FL_PERMANENT = BIT(16), FTRACE_OPS_FL_DIRECT = BIT(17), FTRACE_OPS_FL_SUBOP = BIT(18), + FTRACE_OPS_FL_GRAPH = BIT(19), }; #ifndef CONFIG_DYNAMIC_FTRACE_WITH_ARGS |