Add ADDRENV support to ALL implementations of up_unblock_task()

arch/rgmp/src/nuttx.c

@@ -288,6 +288,7 @@ void up_block_task(struct tcb_s *tcb, tstate_t task_state)
                 warn("Disable preemption failed for task block itself\n");
                 sched_mergepending();
             }
+
             nexttcb = (struct tcb_s*)g_readytorun.head;
 
 #ifdef CONFIG_ARCH_ADDRENV
@@ -344,8 +345,19 @@ void up_unblock_task(struct tcb_s *tcb)
         // g_readytorun task list.
         if (sched_addreadytorun(tcb) && !up_interrupt_context()) {
             /* The currently active task has changed! */
+
             struct tcb_s *nexttcb = (struct tcb_s*)g_readytorun.head;
+
+#ifdef CONFIG_ARCH_ADDRENV
+            // Make sure that the address environment for the previously
+            // running task is closed down gracefully (data caches dump,
+            // MMU flushed) and set up the address environment for the new
+            // thread at the head of the ready-to-run list.
+
+            (void)group_addrenv(nexttcb);
+#endif
             // context switch
+
             up_switchcontext(rtcb, nexttcb);
         }
     }