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authorJosh DuBois <duboisj@gmail.com>2020-07-23 00:33:59 -0500
committerStefan Hajnoczi <stefanha@redhat.com>2020-07-29 16:39:56 +0100
commit1b7157be3a8c4300fc8044d40f4b2e64a152a1b4 (patch)
treef34f2bade0b138211dbfec33d171f30b1d2b0fbe
parent5772f2b1fc5d00e7e04e01fa28e9081d6550440a (diff)
downloadfocaccia-qemu-1b7157be3a8c4300fc8044d40f4b2e64a152a1b4.tar.gz
focaccia-qemu-1b7157be3a8c4300fc8044d40f4b2e64a152a1b4.zip
trace/simple: Allow enabling simple traces from command line
The simple trace backend is enabled / disabled with a call
to st_set_trace_file_enabled().  When initializing tracing
from the command-line, this must be enabled on startup.
(Prior to db25d56c014aa1a9, command-line initialization of
simple trace worked because every call to st_set_trace_file
enabled tracing.)

Fixes: db25d56c014aa1a96319c663e0a60346a223b31e
Signed-off-by: Josh DuBois <josh@joshdubois.com>
Message-id: 20200723053359.256928-1-josh@joshdubois.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-rw-r--r--trace/control.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/trace/control.c b/trace/control.c
index 2ffe000818..6558b5c906 100644
--- a/trace/control.c
+++ b/trace/control.c
@@ -225,6 +225,7 @@ void trace_init_file(const char *file)
 {
 #ifdef CONFIG_TRACE_SIMPLE
     st_set_trace_file(file);
+    st_set_trace_file_enabled(true);
 #elif defined CONFIG_TRACE_LOG
     /*
      * If both the simple and the log backends are enabled, "--trace file"