3 files changed, 7 insertions, 2 deletions
diff --git a/nuttx/arch/z80/src/common/up_exit.c b/nuttx/arch/z80/src/common/up_exit.c
index 4a4dba532..b7f5e6243 100644
--- a/nuttx/arch/z80/src/common/up_exit.c
+++ b/nuttx/arch/z80/src/common/up_exit.c
@@ -114,9 +114,13 @@ static void _up_dumponexit(FAR _TCB *tcb, FAR void *arg)
           struct file_struct *filep = &tcb->streams->sl_streams[i];
           if (filep->fs_filedes >= 0)
             {
+#if CONFIG_STDIO_BUFFER_SIZE > 0
               lldbg("      fd=%d nbytes=%d\n",
                     filep->fs_filedes,
                     filep->fs_bufpos - filep->fs_bufstart);
+#else
+              lldbg("      fd=%d\n", filep->fs_filedes);
+#endif
             }
         }
     }
diff --git a/nuttx/arch/z80/src/common/up_internal.h b/nuttx/arch/z80/src/common/up_internal.h
index 5e4db68da..d340a5631 100644
--- a/nuttx/arch/z80/src/common/up_internal.h
+++ b/nuttx/arch/z80/src/common/up_internal.h
@@ -56,7 +56,7 @@
 #undef  CONFIG_SUPPRESS_TIMER_INTS    /* No timer */
 #undef  CONFIG_SUPPRESS_SERIAL_INTS   /* Console will poll */
 #undef  CONFIG_SUPPRESS_UART_CONFIG   /* Do not reconfig UART */
-#define CONFIG_DUMP_ON_EXIT         1 /* Dump task state on exit */
+#undef  CONFIG_DUMP_ON_EXIT           /* Dump task state on exit */
 
 /* Macros for portability */
 
@@ -112,6 +112,7 @@ extern FAR chipreg_t *up_decodeirq(uint8 rstno, FAR chipreg_t *regs);
 extern void up_irqinitialize(void);
 extern int  up_timerisr(int irq, FAR chipreg_t *regs);
 extern void up_lowputc(char ch) __naked;
+extern char up_lowgetc(void) __naked;
 
 /* Defined in up_doirq.c */
 
diff --git a/nuttx/arch/z80/src/common/up_sigdeliver.c b/nuttx/arch/z80/src/common/up_sigdeliver.c
index adbc894cb..e9ade9964 100644
--- a/nuttx/arch/z80/src/common/up_sigdeliver.c
+++ b/nuttx/arch/z80/src/common/up_sigdeliver.c
@@ -140,4 +140,4 @@ void up_sigdeliver(void)
 #endif
 }
 
-#endif /* CONFIG_DISABLE_SIGNALS */
-\ No newline at end of file
+#endif /* CONFIG_DISABLE_SIGNALS */