From f102f6f405d0799ce4a5c0010abf46f3e98f26be Mon Sep 17 00:00:00 2001
From: yinshengkai <yinshengkai@xiaomi.com>
Date: Tue, 7 Feb 2023 14:49:29 +0800
Subject: [PATCH] trace: add trace header when dumping

Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
---
 system/trace/trace.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/system/trace/trace.c b/system/trace/trace.c
index bb382fede..7075dfb46 100644
--- a/system/trace/trace.c
+++ b/system/trace/trace.c
@@ -199,6 +199,10 @@ static int trace_cmd_dump(int index, int argc, FAR char **argv,
       changed = notectl_enable(false, notectlfd);
     }
 
+  /* Dump the trace header */
+
+  fputs("# tracer: nop\n#\n", out);
+
   /* Dump the trace data */
 
   ret = trace_dump(type, out);