BLOCK_BUT_FIRST(stg_block_putmvar_finally);
}
+// code fragment executed just before we return to the scheduler
+stg_block_blackhole_finally
+{
+#if defined(SMP)
+ // The last thing we do is release sched_lock, which is
+ // preventing other threads from accessing blackhole_queue and
+ // picking up this thread before we are finished with it.
+ foreign "C" RELEASE_LOCK(sched_mutex "ptr");
+#endif
+ jump StgReturn;
+}
+
+stg_block_blackhole
+{
+ Sp_adj(-2);
+ Sp(1) = R1;
+ Sp(0) = stg_enter_info;
+ BLOCK_BUT_FIRST(stg_block_blackhole_finally);
+}
+
#ifdef mingw32_HOST_OS
INFO_TABLE_RET( stg_block_async, 0/*framesize*/, 0/*bitmap*/, RET_SMALL )
{