diff options
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 26 |
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) |