diff --git a/Documentation/NuttxPortingGuide.html b/Documentation/NuttxPortingGuide.html
index e44d380fc04..ff3990c9d9b 100644
--- a/Documentation/NuttxPortingGuide.html
+++ b/Documentation/NuttxPortingGuide.html
@@ -12,7 +12,7 @@
       <h1><big><font color="#3c34ec">
         <i>NuttX RTOS Porting Guide</i>
       </font></big></h1>
-      <p>Last Updated: March 28, 2016</p>
+      <p>Last Updated: May 12, 2016</p>
     </td>
   </tr>
 </table>
diff --git a/configs/pcduino-a10/scripts/sdram.ld b/configs/pcduino-a10/scripts/sdram.ld
index 414c408a4ac..b4eaeef8d7c 100644
--- a/configs/pcduino-a10/scripts/sdram.ld
+++ b/configs/pcduino-a10/scripts/sdram.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/pcduino-a10/scripts/sdram.ld
  *
- *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2013, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -49,7 +49,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -67,13 +68,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > sdram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > sdram
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > sdram
 
@@ -86,7 +89,8 @@ SECTIONS
 	} > sdram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -94,7 +98,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > sdram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -102,7 +107,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > sdram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > sdram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sabre-6quad/scripts/dramboot.ld b/configs/sabre-6quad/scripts/dramboot.ld
index ef87268ff6f..f1134bcc926 100644
--- a/configs/sabre-6quad/scripts/dramboot.ld
+++ b/configs/sabre-6quad/scripts/dramboot.ld
@@ -55,7 +55,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -73,13 +74,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > ddr3
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > ddr3
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > ddr3
 
@@ -92,7 +95,10 @@ SECTIONS
 	} > ddr3
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	/* Uninitialized data */
+
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -100,7 +106,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > ddr3
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -108,6 +115,13 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > ddr3
 
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > ddr3
+
 	/* Stabs debugging sections. */
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
diff --git a/configs/sama5d2-xult/scripts/dramboot.ld b/configs/sama5d2-xult/scripts/dramboot.ld
index 0494ff0a911..e921c5e8aaf 100644
--- a/configs/sama5d2-xult/scripts/dramboot.ld
+++ b/configs/sama5d2-xult/scripts/dramboot.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d2-xult/scripts/dramboot.ld
  *
- *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2015-2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -54,7 +54,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -72,13 +73,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > sdram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > sdram
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > sdram
 
@@ -91,7 +94,8 @@ SECTIONS
 	} > sdram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -99,7 +103,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > sdram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -107,7 +112,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > sdram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > sdram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d2-xult/scripts/gnu-elf.ld b/configs/sama5d2-xult/scripts/gnu-elf.ld
index d84460b4c05..7f35d218bc1 100644
--- a/configs/sama5d2-xult/scripts/gnu-elf.ld
+++ b/configs/sama5d2-xult/scripts/gnu-elf.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d2-xult/scripts/gnu-elf.ld
  *
- *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2015-2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -76,6 +76,15 @@ SECTIONS
       _edata = . ;
     }
 
+  /* Uninitialized data */
+
+  .noinit :
+    {
+      _snoinit = . ;
+      *(.noinit*)
+      _enoinit = . ;
+    }
+
   /* C++ support. For each global and static local C++ object,
    * GCC creates a small subroutine to construct the object. Pointers
    * to these routines (not the routines themselves) are stored as
diff --git a/configs/sama5d2-xult/scripts/isram.ld b/configs/sama5d2-xult/scripts/isram.ld
index a170e022600..a5b1afe9a03 100644
--- a/configs/sama5d2-xult/scripts/isram.ld
+++ b/configs/sama5d2-xult/scripts/isram.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d2-xult/scripts/isram.ld
  *
- *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2015-2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -51,7 +51,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -69,7 +70,8 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > isram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
@@ -88,7 +90,8 @@ SECTIONS
 	} > isram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -96,7 +99,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > isram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -104,7 +108,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > isram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > isram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d2-xult/scripts/uboot.ld b/configs/sama5d2-xult/scripts/uboot.ld
index 66e524d9225..3ad820747d3 100644
--- a/configs/sama5d2-xult/scripts/uboot.ld
+++ b/configs/sama5d2-xult/scripts/uboot.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d2-xult/scripts/uboot.ld
  *
- *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2015-2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -55,7 +55,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -73,13 +74,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > sdram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > sdram
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > sdram
 
@@ -92,7 +95,8 @@ SECTIONS
 	} > sdram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -100,7 +104,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > sdram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -108,7 +113,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > sdram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > sdram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d3-xplained/scripts/ddram.ld b/configs/sama5d3-xplained/scripts/ddram.ld
index edb3f63a49e..9c3243d04e6 100644
--- a/configs/sama5d3-xplained/scripts/ddram.ld
+++ b/configs/sama5d3-xplained/scripts/ddram.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d3-xplained/scripts/ddram.ld
  *
- *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -55,7 +55,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -73,13 +74,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > sdram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > sdram
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > sdram
 
@@ -92,7 +95,8 @@ SECTIONS
 	} > sdram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -100,7 +104,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > sdram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -108,7 +113,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > sdram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > sdram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d3-xplained/scripts/gnu-elf.ld b/configs/sama5d3-xplained/scripts/gnu-elf.ld
index 88c53fe05f0..ffd6dc04b3d 100644
--- a/configs/sama5d3-xplained/scripts/gnu-elf.ld
+++ b/configs/sama5d3-xplained/scripts/gnu-elf.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d3-xplained/scripts/gnu-elf.ld
  *
- *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -76,6 +76,15 @@ SECTIONS
       _edata = . ;
     }
 
+  /* Uninitialized data */
+
+  .noinit :
+    {
+      _snoinit = . ;
+      *(.noinit*)
+      _enoinit = . ;
+    }
+
   /* C++ support. For each global and static local C++ object,
    * GCC creates a small subroutine to construct the object. Pointers
    * to these routines (not the routines themselves) are stored as
diff --git a/configs/sama5d3-xplained/scripts/isram.ld b/configs/sama5d3-xplained/scripts/isram.ld
index dae430c3081..847d3e58b30 100644
--- a/configs/sama5d3-xplained/scripts/isram.ld
+++ b/configs/sama5d3-xplained/scripts/isram.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d3-xplained/scripts/isram.ld
  *
- *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -51,7 +51,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -69,13 +70,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > isram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > isram
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > isram
 
@@ -88,7 +91,8 @@ SECTIONS
 	} > isram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -96,7 +100,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > isram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -104,7 +109,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > isram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > isram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d3x-ek/scripts/ddram.ld b/configs/sama5d3x-ek/scripts/ddram.ld
index 8735df50a66..6376646ba2c 100644
--- a/configs/sama5d3x-ek/scripts/ddram.ld
+++ b/configs/sama5d3x-ek/scripts/ddram.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d3x-ek/scripts/ddram.ld
  *
- *   Copyright (C) 2013-2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2013-2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -55,7 +55,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -73,13 +74,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > sdram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > sdram
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > sdram
 
@@ -92,7 +95,8 @@ SECTIONS
 	} > sdram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -100,7 +104,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > sdram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -108,7 +113,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > sdram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > sdram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d3x-ek/scripts/gnu-elf.ld b/configs/sama5d3x-ek/scripts/gnu-elf.ld
index 82c9b37e2f1..6b77f5dffd2 100644
--- a/configs/sama5d3x-ek/scripts/gnu-elf.ld
+++ b/configs/sama5d3x-ek/scripts/gnu-elf.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d3x-ek/scripts/gnu-elf.ld
  *
- *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -76,6 +76,15 @@ SECTIONS
       _edata = . ;
     }
 
+  /* Uninitialized data */
+
+  .noinit :
+    {
+      _snoinit = . ;
+      *(.noinit*)
+      _enoinit = . ;
+    }
+
   /* C++ support. For each global and static local C++ object,
    * GCC creates a small subroutine to construct the object. Pointers
    * to these routines (not the routines themselves) are stored as
diff --git a/configs/sama5d3x-ek/scripts/isram.ld b/configs/sama5d3x-ek/scripts/isram.ld
index 0dde103d990..c7c3ac1799a 100644
--- a/configs/sama5d3x-ek/scripts/isram.ld
+++ b/configs/sama5d3x-ek/scripts/isram.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d3x-ek/scripts/isram.ld
  *
- *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2013, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -51,7 +51,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -69,13 +70,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > isram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > isram
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > isram
 
@@ -88,7 +91,8 @@ SECTIONS
 	} > isram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -96,7 +100,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > isram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -104,7 +109,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > isram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > isram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d3x-ek/scripts/nor-ddram.ld b/configs/sama5d3x-ek/scripts/nor-ddram.ld
index ecebee5930f..1787e05a194 100644
--- a/configs/sama5d3x-ek/scripts/nor-ddram.ld
+++ b/configs/sama5d3x-ek/scripts/nor-ddram.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d3x-ek/scripts/nor-ddram.ld
  *
- *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -60,7 +60,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -78,13 +79,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > norflash
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > norflash
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > norflash
 
@@ -97,7 +100,8 @@ SECTIONS
 	} > norflash
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -107,7 +111,8 @@ SECTIONS
 
 	_eronly = LOADADDR(.data);
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -115,7 +120,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > sdram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > sdram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d3x-ek/scripts/nor-isram.ld b/configs/sama5d3x-ek/scripts/nor-isram.ld
index c8681562e28..6d667f5e095 100644
--- a/configs/sama5d3x-ek/scripts/nor-isram.ld
+++ b/configs/sama5d3x-ek/scripts/nor-isram.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d3x-ek/scripts/nor-isram.ld
  *
- *   Copyright (C) 2013-2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2013-2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -56,7 +56,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -74,13 +75,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > norflash
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > norflash
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > norflash
 
@@ -93,7 +96,8 @@ SECTIONS
 	} > norflash
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -103,7 +107,8 @@ SECTIONS
 
 	_eronly = LOADADDR(.data);
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -111,7 +116,8 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > isram
 
-	.ramfunc ALIGN(4): {
+	.ramfunc ALIGN(4):
+	{
 		_sramfuncs = ABSOLUTE(.);
 		*(.ramfunc  .ramfunc.*)
 		_eramfuncs = ABSOLUTE(.);
@@ -119,7 +125,17 @@ SECTIONS
 
 	 _framfuncs = LOADADDR(.ramfunc);
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > isram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d3x-ek/scripts/pg-sram.ld b/configs/sama5d3x-ek/scripts/pg-sram.ld
index 549802619fe..31c49abb347 100644
--- a/configs/sama5d3x-ek/scripts/pg-sram.ld
+++ b/configs/sama5d3x-ek/scripts/pg-sram.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d3x-ek/scripts/pg-isram.ld
  *
- *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2013, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -79,7 +79,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.locked : {
+	.locked :
+	{
 		_slocked = ABSOLUTE(.);
 		*(.vectors)
 		up_head.o locked.r (.text .text.*)
@@ -95,7 +96,8 @@ SECTIONS
 		_elocked = ABSOLUTE(.);
 	} >locked
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
@@ -110,7 +112,8 @@ SECTIONS
 	} > isram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.paged : {
+	.paged :
+	{
 		_spaged = ABSOLUTE(.);
 		*(.text .text.*)
 		*(.fixup)
@@ -127,7 +130,8 @@ SECTIONS
 		_epaged = ABSOLUTE(.);
 	} > paged
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -135,14 +139,26 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > data AT > locked
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
 		*(COMMON)
 		_ebss = ABSOLUTE(.);
 	} > data
-					/* Stabs debugging sections.	*/
+
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > data
+
+	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d4-ek/scripts/dramboot.ld b/configs/sama5d4-ek/scripts/dramboot.ld
index 4ca01c6b88f..2e19a34be30 100644
--- a/configs/sama5d4-ek/scripts/dramboot.ld
+++ b/configs/sama5d4-ek/scripts/dramboot.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d4-ek/scripts/dramboot.ld
  *
- *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -54,7 +54,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -72,13 +73,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > sdram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > sdram
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > sdram
 
@@ -91,7 +94,8 @@ SECTIONS
 	} > sdram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -99,7 +103,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > sdram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -107,7 +112,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > sdram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > sdram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d4-ek/scripts/gnu-elf.ld b/configs/sama5d4-ek/scripts/gnu-elf.ld
index 6d402a750d7..6cab7801d10 100644
--- a/configs/sama5d4-ek/scripts/gnu-elf.ld
+++ b/configs/sama5d4-ek/scripts/gnu-elf.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d4-ek/scripts/gnu-elf.ld
  *
- *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -76,6 +76,15 @@ SECTIONS
       _edata = . ;
     }
 
+  /* Uninitialized data */
+
+  .noinit :
+    {
+      _snoinit = . ;
+      *(.noinit*)
+      _enoinit = . ;
+    }
+
   /* C++ support. For each global and static local C++ object,
    * GCC creates a small subroutine to construct the object. Pointers
    * to these routines (not the routines themselves) are stored as
diff --git a/configs/sama5d4-ek/scripts/isram.ld b/configs/sama5d4-ek/scripts/isram.ld
index 85bc4dfc4f0..70689842f29 100644
--- a/configs/sama5d4-ek/scripts/isram.ld
+++ b/configs/sama5d4-ek/scripts/isram.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d4-ek/scripts/isram.ld
  *
- *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -51,7 +51,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -69,13 +70,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > isram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > isram
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > isram
 
@@ -88,7 +91,8 @@ SECTIONS
 	} > isram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -96,7 +100,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > isram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -104,7 +109,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > isram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > isram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }
diff --git a/configs/sama5d4-ek/scripts/uboot.ld b/configs/sama5d4-ek/scripts/uboot.ld
index 530be22418e..2a76487ccf8 100644
--- a/configs/sama5d4-ek/scripts/uboot.ld
+++ b/configs/sama5d4-ek/scripts/uboot.ld
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/sama5d4-ek/scripts/uboot.ld
  *
- *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -55,7 +55,8 @@ ENTRY(_stext)
 
 SECTIONS
 {
-	.text : {
+	.text :
+	{
 		_stext = ABSOLUTE(.);
 		*(.vectors)
 		*(.text .text.*)
@@ -73,13 +74,15 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > sdram
 
-	.init_section : {
+	.init_section :
+	{
 		_sinit = ABSOLUTE(.);
 		*(.init_array .init_array.*)
 		_einit = ABSOLUTE(.);
 	} > sdram
 
-	.ARM.extab : {
+	.ARM.extab :
+	{
 		*(.ARM.extab*)
 	} > sdram
 
@@ -92,7 +95,8 @@ SECTIONS
 	} > sdram
 	PROVIDE_HIDDEN (__exidx_end = .);
 
-	.data : {
+	.data :
+	{
 		_sdata = ABSOLUTE(.);
 		*(.data .data.*)
 		*(.gnu.linkonce.d.*)
@@ -100,7 +104,8 @@ SECTIONS
 		_edata = ABSOLUTE(.);
 	} > sdram
 
-	.bss : {
+	.bss :
+	{
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
@@ -108,7 +113,17 @@ SECTIONS
 		_ebss = ABSOLUTE(.);
 	} > sdram
 
+	/* Uninitialized data */
+
+	.noinit :
+	{
+		_snoinit = ABSOLUTE(.);
+		*(.noinit*)
+		_enoinit = ABSOLUTE(.);
+	} > sdram
+
 	/* Stabs debugging sections. */
+
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }