gdbstub: Set current CPU on interruptions

gdb expects that the thread ID for c and g-class operations is set to the CPU we provide when reporting VM stop conditions. If the stub is still tuned to a different CPU, the wrong information is delivered to the gdb frontend.

---
 gdbstub.c | 1 +
 1 file changed, 1 insertion(+)

index 92b2f81..ffe7e6e 100644
@@ -1285,6 +1285,7 @@ static void gdb_vm_state_change(void *opaque, int running, RunState state)
         ret = GDB_SIGNAL_UNKNOWN;
         break;
     }
+    gdb_set_stop_cpu(cpu);
     snprintf(buf, sizeof(buf), "T%02xthread:%02x;", ret, cpu_index(cpu));
 
 send_packet:

2.1.4

Applied to -trivial, thanks!

/mjt