qemu-log: Abstract out "print usage message about valid log categories"

Abstract out the "print a human readable list of all the
valid log categories" functionality which is currently duplicated
in three separate places. (We leave the monitor.c help_cmd()
implementation as-is since it wants to send the message to
the monitor and add its own information.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 1 insertions, 5 deletions

diff --git a/bsd-user/main.c b/bsd-user/main.c
index 76ab35909c..26604b43cb 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -864,14 +864,10 @@ int main(int argc, char **argv)
     qemu_set_log_filename(log_file);
     if (log_mask) {
         int mask;
-        const CPULogItem *item;
 
         mask = cpu_str_to_log_mask(log_mask);
         if (!mask) {
-            printf("Log items (comma separated):\n");
-            for (item = cpu_log_items; item->mask != 0; item++) {
-                printf("%-10s %s\n", item->name, item->help);
-            }
+            qemu_print_log_usage(stdout);
             exit(1);
         }
         cpu_set_log(mask);