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Diffstat (limited to 'util/log.c')
-rw-r--r--util/log.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/util/log.c b/util/log.c
index 2709e98..a7ddc7e 100644
--- a/util/log.c
+++ b/util/log.c
@@ -56,13 +56,20 @@ void do_qemu_set_log(int log_flags, bool use_own_buffers)
#ifdef CONFIG_TRACE_LOG
qemu_loglevel |= LOG_TRACE;
#endif
- if (qemu_loglevel && !qemu_logfile) {
+ if ((qemu_loglevel || is_daemonized()) && !qemu_logfile) {
if (logfilename) {
qemu_logfile = fopen(logfilename, log_append ? "a" : "w");
if (!qemu_logfile) {
perror(logfilename);
_exit(1);
}
+ /* In case we are a daemon redirect stderr to logfile */
+ if (is_daemonized()) {
+ dup2(fileno(qemu_logfile), STDERR_FILENO);
+ fclose(qemu_logfile);
+ /* This will skip closing logfile in qemu_log_close() */
+ qemu_logfile = stderr;
+ }
} else {
/* Default to stderr if no log file specified */
qemu_logfile = stderr;
@@ -82,7 +89,7 @@ void do_qemu_set_log(int log_flags, bool use_own_buffers)
log_append = 1;
}
}
- if (!qemu_loglevel && qemu_logfile) {
+ if (!qemu_loglevel && !is_daemonized() && qemu_logfile) {
qemu_log_close();
}
}