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authorYaowei Bai <baiyaowei@cmss.chinamobile.com>2018-07-04 11:17:27 +0800
committerStefan Hajnoczi <stefanha@redhat.com>2018-07-19 13:09:04 +0100
commitdb817b8c500a60873eba80cbf047900ae5b32766 (patch)
tree65b34642bbcb8a848474c2c2a2d9dcb2ab3a08e0 /trace/control.c
parentea6abffa8a08d832feb759d359d5b935e3087cf7 (diff)
downloadqemu-arm-db817b8c500a60873eba80cbf047900ae5b32766.tar.gz
tracing: Use double-dash spelling for trace option
The '-trace' and '--trace' spellings are only both supported in qemu binary, while for qemu-nbd or qemu-img only '--trace' spelling is supported. So for the consistency of trace option invocation, we should use double-dash spelling in our documentation. This's also mentioned in https://wiki.qemu.org/BiteSizedTasks#Consistent_option_usage_in_documentation . Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1530674247-31200-1-git-send-email-baiyaowei@cmss.chinamobile.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'trace/control.c')
-rw-r--r--trace/control.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/trace/control.c b/trace/control.c
index e40cfca775..43fb7868db 100644
--- a/trace/control.c
+++ b/trace/control.c
@@ -253,7 +253,7 @@ void trace_init_file(const char *file)
#ifdef CONFIG_TRACE_SIMPLE
st_set_trace_file(file);
#elif defined CONFIG_TRACE_LOG
- /* If both the simple and the log backends are enabled, "-trace file"
+ /* If both the simple and the log backends are enabled, "--trace file"
* only applies to the simple backend; use "-D" for the log backend.
*/
if (file) {
@@ -261,7 +261,7 @@ void trace_init_file(const char *file)
}
#else
if (file) {
- fprintf(stderr, "error: -trace file=...: "
+ fprintf(stderr, "error: --trace file=...: "
"option not supported by the selected tracing backends\n");
exit(1);
}