Z16F compile/link with all OS features enabled

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@574 42af7a65-404d-4744-a932-0658087f49c3

15 files changed, 136 insertions, 84 deletions

diff --git a/nuttx/TODO b/nuttx/TODO
index f8fd352fe..6e5b04527 100644
--- a/nuttx/TODO
+++ b/nuttx/TODO
@@ -7,7 +7,7 @@ NuttX TODO List (Last updated January 6, 2008)
   (1)  Signals (sched/, arch/)
   (1)  pthreads (sched/)
   (1)  C++ Support
-  (10) Network (net/, netutils/)
+  (11) Network (net/, netutils/)
   (2)  USB (drivers/usbdev)
   (3)  Libraries (lib/)
   (2)  File system (fs/, drivers/)
@@ -21,7 +21,7 @@ NuttX TODO List (Last updated January 6, 2008)
   (2)  ARM/LPC214x (arch/arm/src/lpc214x/)
   (4)  pjrc-8052 / MCS51 (arch/pjrc-8051/)
   (2)  z80 (arch/z80/)
-  (1)  z16 (arch/z16/)
+  (2)  z16 (arch/z16/)
 
 o Task/Scheduler (sched/)
   ^^^^^^^^^^^^^^^^^^^^^^^
@@ -361,4 +361,15 @@ o z16 (arch/z16)
   Description: ZDS-II Librarian complains that the source for the .obj file
                is not in the library.
   Status:      Open
-  Priority:    Low, thought to be cosmetic.
+  Priority:    Low, thought to be cosmetic.  I think this is a consequence of
+               replacing vs. inserting the library.
+
+  Description: When printf is used, there are warnings like:
+
+               WARNING (255) Missing declaration of (s)printf helper function, variable, or field
+               Declaration of __print_out is missing
+
+               Need to suppress built-in printf logic to use NuttX printf logic.
+  Status:      Open
+  Priority:    Undetermined
+
diff --git a/nuttx/arch/z16/include/z16f/irq.h b/nuttx/arch/z16/include/z16f/irq.h
index 7434b1f25..3e4ae472c 100644
--- a/nuttx/arch/z16/include/z16f/irq.h
+++ b/nuttx/arch/z16/include/z16f/irq.h
@@ -180,7 +180,7 @@ struct xcptcontext
    */
 
 #ifndef CONFIG_DISABLE_SIGNALS
-  void *sigdeliver; /* Actual type is sig_deliver_t */
+  CODE void *sigdeliver; /* Actual type is sig_deliver_t */
 
   /* The following retains that state during signal execution */
 
diff --git a/nuttx/arch/z16/src/common/up_sigdeliver.c b/nuttx/arch/z16/src/common/up_sigdeliver.c
index 59b40715d..ce94d1a40 100644
--- a/nuttx/arch/z16/src/common/up_sigdeliver.c
+++ b/nuttx/arch/z16/src/common/up_sigdeliver.c
@@ -113,12 +113,12 @@ void up_sigdeliver(void)
    * signals.
    */
 
-  sigdeliver           = rtcb->xcp.sigdeliver;
+  sigdeliver           = (sig_deliver_t)rtcb->xcp.sigdeliver;
   rtcb->xcp.sigdeliver = NULL;
 
   /* Then restore the task interrupt state. */
 
-  if ((reg[REG_FLAGS] & Z16F_CNTRL_FLAGS_IRQE) != 0)
+  if ((regs[REG_FLAGS] & Z16F_CNTRL_FLAGS_IRQE) != 0)
     {
        EI();
     }
diff --git a/nuttx/arch/z16/src/z16f/z16f_head.S b/nuttx/arch/z16/src/z16f/z16f_head.S
index fc480822a..7e0682e76 100755
--- a/nuttx/arch/z16/src/z16f/z16f_head.S
+++ b/nuttx/arch/z16/src/z16f/z16f_head.S
@@ -50,9 +50,15 @@
 #ifdef CONFIG_ARCH_LEDS
 	xref	_up_ledinit:EROM
 #endif
+#if defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
+	xref	_up_earlyserialinit:EROM
+#endif
 #if defined(CONFIG_ARCH_LOWPUTC) || defined(CONFIG_ARCH_LOWGETC)
 	xref	_z16f_lowuartinit:EROM
 #endif
+#if defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
+	xref	up_earlyserialinit:EROM
+#endif
 	xref	_os_start:EROM
 	xref	_up_doirq:EROM
 	xref	_z16f_sysexec:EROM
@@ -207,6 +213,11 @@ _z16f_reset8:
 
 	call	_z16f_lowinit		/* Perform low-level hardware initialization */
 
+#if defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
+	/* Perform early serial initialization */
+
+	call	_up_earlyserialinit
+#endif
 	/* Start NuttX */
 
 	call	_os_start		/* Start the operating system */
diff --git a/nuttx/arch/z16/src/z16f/z16f_lowuart.S b/nuttx/arch/z16/src/z16f/z16f_lowuart.S
index b39232122..bea5f25fc 100755
--- a/nuttx/arch/z16/src/z16f/z16f_lowuart.S
+++ b/nuttx/arch/z16/src/z16f/z16f_lowuart.S
@@ -168,7 +168,6 @@ _up_lowputc:
  *
  *************************************************************************/
 
-#ifdef CONFIG_ARCH_LOWPUTC
 _z16f_xmitc:
 _z16f_xmitc1:
 	ld	r0, Z16F_UARTSTAT0_TDRE		/* TDRE=Transmitter Data Register Empty */
diff --git a/nuttx/arch/z16/src/z16f/z16f_serial.c b/nuttx/arch/z16/src/z16f/z16f_serial.c
index 38d7492af..fb92919b1 100644
--- a/nuttx/arch/z16/src/z16f/z16f_serial.c
+++ b/nuttx/arch/z16/src/z16f/z16f_serial.c
@@ -158,7 +158,7 @@ static uart_dev_t g_uart0port =
 #endif
   { 0 },                    /* closesem */
   { 0 },                    /* xmitsem */
-  { 0 ],                    /* recvsem */
+  { 0 },                    /* recvsem */
   {
     { 0 },                  /* xmit.sem */
     0,                      /* xmit.head */
@@ -203,7 +203,7 @@ static uart_dev_t g_uart1port =
 #endif
   { 0 },                    /* closesem */
   { 0 },                    /* xmitsem */
-  { 0 ],                    /* recvsem */
+  { 0 },                    /* recvsem */
   {
     { 0 },                  /* xmit.sem */
     0,                      /* xmit.head */
@@ -246,7 +246,7 @@ static ubyte z16f_disableuartirq(struct uart_dev_s *dev)
 {
   struct z16f_uart_s *priv  = (struct z16f_uart_s*)dev->priv;
   irqstate_t          flags = irqsave();
-  ubyte               state = priv->rxdisabed ? 0 : 1 | priv->txdisabled ? 0 : 2;
+  ubyte               state = priv->rxenabled ? 1 : 0 | priv->txenabled ? 2 : 0;
 
   z16f_txint(dev, FALSE);
   z16f_rxint(dev, FALSE);
@@ -268,20 +268,19 @@ static void z16f_restoreuartirq(struct uart_dev_s *dev, ubyte state)
   z16f_rxint(dev, (state & 1) ? TRUE : FALSE);
 
   irqrestore(flags);
-  return state;
 }
 
 /****************************************************************************
  * Name: z16f_waittx
  ****************************************************************************/
 
-static void z16f_waittx(struct z16f_uart_s *priv, void (*status)(struct z16f_uart_s *))
+static void z16f_waittx(struct uart_dev_s *dev, boolean (*status)(struct uart_dev_s *))
 {
   int tmp;
 
   for (tmp = 1000 ; tmp > 0 ; tmp--)
     {
-      if (status(priv) != 0)
+      if (status(dev))
         {
           break;
         }
@@ -374,7 +373,7 @@ static void z16f_shutdown(struct uart_dev_s *dev)
 
 static int z16f_attach(struct uart_dev_s *dev)
 {
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
+  struct z16f_uart_s *priv = (struct z16f_uart_s*)dev->priv;
   int ret;
 
   /* Attach the RX IRQ */
@@ -412,7 +411,7 @@ errout:
 
 static void z16f_detach(struct uart_dev_s *dev)
 {
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
+  struct z16f_uart_s *priv = (struct z16f_uart_s*)dev->priv;
   up_disable_irq(priv->rxirq);
   up_disable_irq(priv->txirq);
   irq_detach(priv->rxirq);
@@ -465,6 +464,7 @@ static int z16f_rxinterrupt(int irq, void *context)
 
       uart_recvchars(dev);
     }
+  return OK;
 }
 
 /****************************************************************************
@@ -506,6 +506,7 @@ static int z16f_txinterrupt(int irq, void *context)
 
       uart_xmitchars(dev);
     }
+  return OK;
 }
 
 /****************************************************************************
@@ -567,9 +568,8 @@ static void z16f_rxint(struct uart_dev_s *dev, boolean enable)
     {
       up_disable_irq(priv->rxirq);
     }
-#endif
 
-  priv->rxenable = enable;
+  priv->rxenabled = enable;
   irqrestore(flags);
 }
 
@@ -625,7 +625,7 @@ static void z16f_txint(struct uart_dev_s *dev, boolean enable)
       up_disable_irq(priv->txirq);
     }
 
-  priv->txenable = enable;
+  priv->txenabled = enable;
   irqrestore(flags);
 }
 
@@ -673,15 +673,15 @@ static boolean z16f_txempty(struct uart_dev_s *dev)
 
 void up_earlyserialinit(void)
 {
-  (void)z16f_disableuartirq(TTYS0_DEV);
-  (void)z16f_disableuartirq(TTYS1_DEV);
+  (void)z16f_disableuartirq(&TTYS0_DEV);
+  (void)z16f_disableuartirq(&TTYS1_DEV);
 
   CONSOLE_DEV.isconsole = TRUE;
   z16f_setup(&CONSOLE_DEV);
 }
 
 /****************************************************************************
- * Name: z16f_serialinit
+ * Name: up_serialinit
  *
  * Description:
  *   Register serial console and serial ports.  This assumes
@@ -689,7 +689,7 @@ void up_earlyserialinit(void)
  *
  ****************************************************************************/
 
-void z16f_serialinit(void)
+void up_serialinit(void)
 {
   (void)uart_register("/dev/console", &CONSOLE_DEV);
   (void)uart_register("/dev/ttyS0", &TTYS0_DEV);
@@ -722,21 +722,21 @@ int up_putc(int ch)
     {
       /* Add CR before LF */
 
-      z16f_waittx(priv, z16f_txready);
+      z16f_waittx(&CONSOLE_DEV, z16f_txready);
       putreg8('\r', priv->uartbase + Z16F_UART_TXD);
     }
 
   /* Output the character */
 
-  z16f_waittx(priv, z16f_txready);
+  z16f_waittx(&CONSOLE_DEV, z16f_txready);
   putreg8((ubyte)ch,  priv->uartbase + Z16F_UART_TXD);
 
   /* Now wait for all queue TX data to drain before restoring interrupts.  The
    * driver should receive one txdone interrupt which it may or may not ignore.
    */
 
-  z16f_waittx(priv, z16f_txempty);
-  z16f_restoreuartirq(priv, state);
+  z16f_waittx(&CONSOLE_DEV, z16f_txempty);
+  z16f_restoreuartirq(&CONSOLE_DEV, state);
   return ch;
 }
 
@@ -775,17 +775,18 @@ static void _up_putc(int ch)
 
 int up_putc(int ch)
 {
-  _up_putc(ch);
-
   /* Check for LF */
 
   if (ch == '\n')
     {
-      /* Add CR */
+      /* Output CR before LF */
 
       _up_putc('\r');
     }
 
+  /* Output character */
+
+  _up_putc(ch);
   return ch;
 }
 
diff --git a/nuttx/configs/sim/defconfig b/nuttx/configs/sim/defconfig
index d7c2eb0fc..93d9d0459 100644
--- a/nuttx/configs/sim/defconfig
+++ b/nuttx/configs/sim/defconfig
@@ -1,7 +1,7 @@
-############################################################
-# defconfig
+############################################################################
+# sim/defconfig
 #
-#   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -14,7 +14,7 @@
 #    notice, this list of conditions and the following disclaimer in
 #    the documentation and/or other materials provided with the
 #    distribution.
-# 3. Neither the name Gregory Nutt nor the names of its contributors may be
+# 3. Neither the name NuttX nor the names of its contributors may be
 #    used to endorse or promote products derived from this software
 #    without specific prior written permission.
 #
@@ -31,15 +31,14 @@
 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 #
-############################################################
+############################################################################
 #
-# architecture selection
+# Architecture selection
 #
 # CONFIG_ARCH - identifies the arch subdirectory and, hence, the
 #   processor architecture.
-# CONFIG_ARCH_name - for use in C code.  This identifies the
-#   particular chip or SoC that the architecture is implemented
-#   in.
+# CONFIG_ARCH_name - for use in C code.  This identifies the particular
+#   processor architecture (CONFIG_ARCH_SIM).
 # CONFIG_ARCH_BOARD - identifies the configs subdirectory and, hence,
 #   the board that supports the particular chip or SoC.
 # CONFIG_ARCH_BOARD_name - for use in C code
diff --git a/nuttx/configs/z16f2800100zcog/include/board.h b/nuttx/configs/z16f2800100zcog/include/board.h
index 774ca92c1..c8d43eee3 100644
--- a/nuttx/configs/z16f2800100zcog/include/board.h
+++ b/nuttx/configs/z16f2800100zcog/include/board.h
@@ -61,6 +61,7 @@
 #define LED_IDLE                    4
 #define LED_INIRQ                   5
 #define LED_ASSERTION               6
+#define LED_SIGNAL                  6
 #define LED_PANIC                   7
 
 /****************************************************************************
diff --git a/nuttx/configs/z16f2800100zcog/ostest/defconfig b/nuttx/configs/z16f2800100zcog/ostest/defconfig
index 60c0cb788..92315d28d 100644
--- a/nuttx/configs/z16f2800100zcog/ostest/defconfig
+++ b/nuttx/configs/z16f2800100zcog/ostest/defconfig
@@ -1,5 +1,5 @@
 ############################################################################
-# configs/z16f2800100zcog/defconfig
+# configs/z16f2800100zcog/ostest/defconfig
 #
 #   Copyright (C) 2008 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
@@ -37,10 +37,14 @@
 #
 # CONFIG_ARCH - identifies the arch subdirectory and, hence, the
 #   processor architecture.
-# CONFIG_ARCH_Z16 - Set if processor is Z16
-# CONFIG_ARCH_CHIP - Identifies the specific chip
-# CONFIG_ARCH_CHIP_Z16F - Set if this the Z16F
-# CONFIG_ARCH_CHIP_Z16F2810 - Identifies chip variant
+# CONFIG_ARCH_name - for use in C code.  This identifies the particular
+#   processor architecture (CONFIG_ARCH_Z16).
+# CONFIG_ARCH_CHIP - Identifies the specific chip or SoC that implements the
+#   architecture.
+# CONFIG_ARCH_CHIP_chip - for use in C code.  This identifies the
+#   particular chip or SoC that the architecture is implemented
+#   in (CONFIG_ARCH_CHIP_Z16F)
+# CONFIG_ARCH_CHIP_Z16F2810 - Identifies z16f chip variant
 # CONFIG_ARCH_CHIP_Z16F2811
 # CONFIG_ARCH_CHIP_Z16F3211
 # CONFIG_ARCH_CHIP_Z16F6411
@@ -114,7 +118,7 @@ CONFIG_HAVE_LIBM=n
 # CONFIG_HAVE_LOWPUTC - architecture supports low-level, boot
 #   time console output
 # CONFIG_HAVE_GETPUTC - architecture supports low-level, boot
-#   time console output
+#   time console input
 # CONFIG_TICKS_PER_MSEC - The default system timer is 100Hz
 #   or TICKS_PER_MSEC=10.  This setting may be defined to
 #   inform NuttX that the processor hardware is providing
@@ -138,16 +142,16 @@ CONFIG_EXAMPLE=ostest
 CONFIG_DEBUG=n
 CONFIG_DEBUG_VERBOSE=n
 CONFIG_MM_REGIONS=1
-CONFIG_ARCH_LOWPUTC=y
+CONFIG_ARCH_LOWPUTC=n
 CONFIG_ARCH_LOWGETC=n
 CONFIG_RR_INTERVAL=0
 CONFIG_SCHED_INSTRUMENTATION=n
 CONFIG_TASK_NAME_SIZE=0
-CONFIG_START_YEAR=2007
-CONFIG_START_MONTH=2
-CONFIG_START_DAY=21
+CONFIG_START_YEAR=2008
+CONFIG_START_MONTH=1
+CONFIG_START_DAY=28
 CONFIG_JULIAN_TIME=n
-CONFIG_DEV_CONSOLE=n
+CONFIG_DEV_CONSOLE=y
 
 #
 # The following can be used to disable categories of
@@ -164,13 +168,13 @@ CONFIG_DEV_CONSOLE=n
 # o pthread_condtimedwait() depends on signals to wake
 #   up waiting tasks.
 #
-CONFIG_DISABLE_CLOCK=y
-CONFIG_DISABLE_POSIX_TIMERS=y
-CONFIG_DISABLE_PTHREAD=y
-CONFIG_DISABLE_SIGNALS=y
-CONFIG_DISABLE_MQUEUE=y
-CONFIG_DISABLE_MOUNTPOINT=y
-CONFIG_DISABLE_ENVIRON=y
+CONFIG_DISABLE_CLOCK=n
+CONFIG_DISABLE_POSIX_TIMERS=n
+CONFIG_DISABLE_PTHREAD=n
+CONFIG_DISABLE_SIGNALS=n
+CONFIG_DISABLE_MQUEUE=n
+CONFIG_DISABLE_MOUNTPOINT=n
+CONFIG_DISABLE_ENVIRON=n
 
 #
 # Misc libc settings
@@ -203,7 +207,7 @@ CONFIG_ARCH_KFREE=n
 # Sizes of configurable things (0 disables)
 #
 # CONFIG_MAX_TASKS - The maximum number of simultaneously
-#   actived tasks.  This value must be a power of two.
+#   active tasks.  This value must be a power of two.
 # CONFIG_MAX_TASK_ARGS - This controls the maximum number of
 #   of parameters that a task may receive (i.e., maxmum value
 #   of 'argc')
@@ -234,19 +238,19 @@ CONFIG_ARCH_KFREE=n
 #   timer structures to minimize dynamic allocations.  Set to
 #   zero for all dynamic allocations.
 #
-CONFIG_MAX_TASKS=8
+CONFIG_MAX_TASKS=16
 CONFIG_MAX_TASK_ARGS=4
-CONFIG_NPTHREAD_KEYS=0
-CONFIG_NFILE_DESCRIPTORS=0
-CONFIG_NFILE_STREAMS=0
+CONFIG_NPTHREAD_KEYS=4
+CONFIG_NFILE_DESCRIPTORS=8
+CONFIG_NFILE_STREAMS=8
 CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=0
-CONFIG_NUNGET_CHARS=0
-CONFIG_PREALLOC_MQ_MSGS=0
-CONFIG_MQ_MAXMSGSIZE=0
+CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_NUNGET_CHARS=2
+CONFIG_PREALLOC_MQ_MSGS=4
+CONFIG_MQ_MAXMSGSIZE=32
 CONFIG_MAX_WDOGPARMS=2
 CONFIG_PREALLOC_WDOGS=4
-CONFIG_PREALLOC_TIMERS=0
+CONFIG_PREALLOC_TIMERS=4
 
 #
 # TCP/IP and UDP support via uIP
diff --git a/nuttx/examples/ostest/mqueue.c b/nuttx/examples/ostest/mqueue.c
index 99cf1e585..e15d4680c 100644
--- a/nuttx/examples/ostest/mqueue.c
+++ b/nuttx/examples/ostest/mqueue.c
@@ -1,7 +1,7 @@
 /**************************************************************************
  * mqueue.c
  *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ * 3. Neither the name NuttX nor the names of its contributors may be
  *    used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -56,10 +56,14 @@
  **************************************************************************/
 
 #define TEST_MESSAGE        "This is a test and only a test"
-#ifdef SDCC
-#define TEST_MSGLEN         (31)
+#if defined(SDCC) || defined(__ZILOG__)
+   /* Cannot use strlen in array size */
+
+#  define TEST_MSGLEN         (31)
 #else
-#define TEST_MSGLEN         (strlen(TEST_MESSAGE)+1)
+   /* Message lenght is the size of the message plus the null terminator */
+
+#  define TEST_MSGLEN         (strlen(TEST_MESSAGE)+1)
 #endif
 
 #define TEST_SEND_NMSGS     (10)
diff --git a/nuttx/examples/ostest/timedmqueue.c b/nuttx/examples/ostest/timedmqueue.c
index 2ef0dedea..3d68039d0 100644
--- a/nuttx/examples/ostest/timedmqueue.c
+++ b/nuttx/examples/ostest/timedmqueue.c
@@ -1,7 +1,7 @@
 /**************************************************************************
  * mqueue.c
  *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ * 3. Neither the name NuttX nor the names of its contributors may be
  *    used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -56,11 +56,14 @@
  **************************************************************************/
 
 #define TEST_MESSAGE        "This is a test and only a test"
+#if defined(SDCC) || defined(__ZILOG__)
+   /* Cannot use strlen in array size */
 
-#ifdef SDCC
-#define TEST_MSGLEN         (31)
+#  define TEST_MSGLEN         (31)
 #else
-#define TEST_MSGLEN         (strlen(TEST_MESSAGE)+1)
+   /* Message lenght is the size of the message plus the null terminator */
+
+#  define TEST_MSGLEN         (strlen(TEST_MESSAGE)+1)
 #endif
 
 #define TEST_SEND_NMSGS     (10)
diff --git a/nuttx/include/nuttx/arch.h b/nuttx/include/nuttx/arch.h
index f7fc6582e..aca7c299b 100644
--- a/nuttx/include/nuttx/arch.h
+++ b/nuttx/include/nuttx/arch.h
@@ -57,7 +57,7 @@
  * Public Variables
  ****************************************************************************/
 
-typedef void (*sig_deliver_t)(FAR _TCB *tcb);
+typedef CODE void (*sig_deliver_t)(FAR _TCB *tcb);
 
 /****************************************************************************
  * Public Function Prototypes
diff --git a/nuttx/sched/env_getenv.c b/nuttx/sched/env_getenv.c
index 91e974845..be0a83d2e 100644
--- a/nuttx/sched/env_getenv.c
+++ b/nuttx/sched/env_getenv.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * env_getenv.c
  *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ * 3. Neither the name NuttX nor the names of its contributors may be
  *    used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
diff --git a/nuttx/sched/env_getenvironptr.c b/nuttx/sched/env_getenvironptr.c
index 4c01250b4..ab7fe9816 100644
--- a/nuttx/sched/env_getenvironptr.c
+++ b/nuttx/sched/env_getenvironptr.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * env_getenvironptr.c
  *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ * 3. Neither the name NuttX nor the names of its contributors may be
  *    used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -73,6 +73,20 @@
 
 FAR char **get_environ_ptr( void )
 {
+#if 1
+
+   /* Type of internal representation of environment is incompatible with
+    * char ** return value.
+    */
+
+#ifdef CONFIG_CPP_HAVE_WARNING
+#  warning "get_environ_ptr not Implemented"
+#endif
+
+  return NULL;
+
+#else
+
   /* Return a reference to the thread-private environ in the TCB.*/
 
   FAR _TCB *ptcb = (FAR _TCB*)g_readytorun.head;
@@ -84,6 +98,8 @@ FAR char **get_environ_ptr( void )
     {
       return NULL;
     }
+
+#endif
 }
 
 #endif /* CONFIG_DISABLE_ENVIRON */
diff --git a/nuttx/sched/timer_getoverrun.c b/nuttx/sched/timer_getoverrun.c
index 9b23136da..07095a13c 100644
--- a/nuttx/sched/timer_getoverrun.c
+++ b/nuttx/sched/timer_getoverrun.c
@@ -1,7 +1,7 @@
 /********************************************************************************
  * timer_getoverrun.c
  *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ * 3. Neither the name NuttX nor the names of its contributors may be
  *    used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -102,7 +102,10 @@
 
 int timer_getoverrun(timer_t timerid)
 {
-#warning "Not Implemented"
+#ifdef CONFIG_CPP_HAVE_WARNING
+#  warning "timer_getoverrun not Implemented"
+#endif
+
   *get_errno_ptr() = ENOSYS;
   return ERROR;
 }