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Diffstat (limited to 'kernel/trace/trace.c')
-rw-r--r--kernel/trace/trace.c26
1 files changed, 25 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 62c6506d663f..ebf49649534c 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3908,6 +3908,20 @@ static const struct file_operations tracing_saved_cmdlines_size_fops = {
.write = tracing_saved_cmdlines_size_write,
};
+static void
+trace_insert_enum_map(struct trace_enum_map **start, struct trace_enum_map **stop)
+{
+ struct trace_enum_map **map;
+ int len = stop - start;
+
+ if (len <= 0)
+ return;
+
+ map = start;
+
+ trace_event_enum_update(map, len);
+}
+
static ssize_t
tracing_set_trace_read(struct file *filp, char __user *ubuf,
size_t cnt, loff_t *ppos)
@@ -6542,6 +6556,14 @@ struct dentry *tracing_init_dentry(void)
return tr->dir;
}
+extern struct trace_enum_map *__start_ftrace_enum_maps[];
+extern struct trace_enum_map *__stop_ftrace_enum_maps[];
+
+static void __init trace_enum_init(void)
+{
+ trace_insert_enum_map(__start_ftrace_enum_maps, __stop_ftrace_enum_maps);
+}
+
static __init int tracer_init_debugfs(void)
{
struct dentry *d_tracer;
@@ -6566,6 +6588,8 @@ static __init int tracer_init_debugfs(void)
trace_create_file("saved_cmdlines_size", 0644, d_tracer,
NULL, &tracing_saved_cmdlines_size_fops);
+ trace_enum_init();
+
#ifdef CONFIG_DYNAMIC_FTRACE
trace_create_file("dyn_ftrace_total_info", 0444, d_tracer,
&ftrace_update_tot_cnt, &tracing_dyn_info_fops);
@@ -6888,7 +6912,7 @@ void __init trace_init(void)
tracepoint_printk = 0;
}
tracer_alloc_buffers();
- trace_event_init();
+ trace_event_init();
}
__init static int clear_boot_tracer(void)