diff options
| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2015-09-29 10:15:10 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2015-09-29 13:23:58 -0400 |
| commit | 729358da95a1b3850ef892e9384f58932da1dc69 (patch) | |
| tree | d7d4ad01b17ed7490e9689d1eb79396b9dbb7099 /kernel/trace/trace.h | |
| parent | a3418a364ec3c8f0c29bf3f4cfc71dc6f240150e (diff) | |
tracing: Only create function graph options when it is compiled in
Do not create fuction graph tracer options when function graph tracer is not
even compiled in.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index d164845edddd..33cd09799ceb 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -880,6 +880,22 @@ extern int trace_get_user(struct trace_parser *parser, const char __user *ubuf, size_t cnt, loff_t *ppos); /* + * Only create function graph options if function graph is configured. + */ +#ifdef CONFIG_FUNCTION_GRAPH_TRACER +# define FGRAPH_FLAGS \ + C(SLEEP_TIME, "sleep-time"), \ + C(GRAPH_TIME, "graph-time"), \ + C(DISPLAY_GRAPH, "display-graph"), +/* Initially set for trace_flags */ +# define FUNCTION_GRAPH_DEFAULT_FLAGS \ + (TRACE_ITER_SLEEP_TIME | TRACE_ITER_GRAPH_TIME) +#else +# define FGRAPH_FLAGS +# define FUNCTION_GRAPH_DEFAULT_FLAGS 0UL +#endif + +/* * trace_iterator_flags is an enumeration that defines bit * positions into trace_flags that controls the output. * @@ -904,15 +920,13 @@ extern int trace_get_user(struct trace_parser *parser, const char __user *ubuf, C(PRINTK_MSGONLY, "printk-msg-only"), \ C(CONTEXT_INFO, "context-info"), /* Print pid/cpu/time */ \ C(LATENCY_FMT, "latency-format"), \ - C(SLEEP_TIME, "sleep-time"), \ - C(GRAPH_TIME, "graph-time"), \ C(RECORD_CMD, "record-cmd"), \ C(OVERWRITE, "overwrite"), \ C(STOP_ON_FREE, "disable_on_free"), \ C(IRQ_INFO, "irq-info"), \ C(MARKERS, "markers"), \ C(FUNCTION, "function-trace"), \ - C(DISPLAY_GRAPH, "display-graph"), + FGRAPH_FLAGS /* * By defining C, we can make TRACE_FLAGS a list of bit names |