The "info jit" command currently aborts on Mac OS X with the message
"qemu_mutex_lock: Invalid argument" when running with "-M accel=qtest".
We should only call into the TCG code here if TCG has really been
enabled and initialized.

Signed-off-by: Thomas Huth <th...@redhat.com>
---
 monitor.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/monitor.c b/monitor.c
index be282ec..3e0979d 100644
--- a/monitor.c
+++ b/monitor.c
@@ -1086,6 +1086,11 @@ static void hmp_info_registers(Monitor *mon, const QDict 
*qdict)
 
 static void hmp_info_jit(Monitor *mon, const QDict *qdict)
 {
+    if (!tcg_enabled()) {
+        error_report("JIT information is only available with accel=tcg");
+        return;
+    }
+
     dump_exec_info((FILE *)mon, monitor_fprintf);
     dump_drift_info((FILE *)mon, monitor_fprintf);
 }
-- 
1.8.3.1


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