License fix and cosmetic changes.

boards.txt

+# Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
 arduino_zero_edbg.name=Arduino Zero (Programming Port)
 arduino_zero_edbg.vid.0=0x03eb
 arduino_zero_edbg.pid.0=0x2157

cores/arduino/Arduino.h

 /*
   Arduino.h - Main include file for the Arduino SDK
-  Copyright (c) 2014 Arduino Team.  All right reserved.
+  Copyright (c) 2014 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public

cores/arduino/HardwareSerial.h

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public

cores/arduino/Reset.cpp

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public

cores/arduino/Reset.h

 /*
-  Copyright (c) 2012 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -16,8 +16,7 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
-#ifndef RESET_H
-#define RESET_H
+#pragma once
 
 #ifdef __cplusplus
 extern "C" {
@@ -30,5 +29,3 @@ void cancelReset();
 #ifdef __cplusplus
 }
 #endif
-
-#endif

cores/arduino/Tone.cpp

 /*
-  Copyright (c) 2015 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public

cores/arduino/Tone.h

 /*
-  Copyright (c) 2015 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -16,8 +16,7 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
-#ifndef _WIRING_TONE_
-#define _WIRING_TONE_
+#pragma once
 
 #ifdef __cplusplus
 
@@ -28,6 +27,4 @@ void noTone(uint32_t _pin);
 
 void toneAccurateClock (uint32_t);
 
-#endif /*  __cplusplus */
-
-#endif /* _WIRING_TONE_ */
+#endif

cores/arduino/Uart.cpp

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public

cores/arduino/Uart.h

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -16,8 +16,7 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
-#ifndef _SERCOM_UART_CLASS
-#define _SERCOM_UART_CLASS
+#pragma once
 
 #include "HardwareSerial.h"
 #include "SERCOM.h"
@@ -56,5 +55,3 @@ class Uart : public HardwareSerial
     SercomUartCharSize extractCharSize(uint8_t config);
     SercomParityMode extractParity(uint8_t config);
 };
-
-#endif

cores/arduino/WInterrupts.c

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -35,24 +35,13 @@ static struct
 /* Configure I/O interrupt sources */
 static void __initialize()
 {
-#if 0
-  int i ;
-
-  for ( i = 0 ; i < EXTERNAL_NUM_INTERRUPTS ; i++ )
-  {
-    callbacksInt[i]._callback = NULL ;
-  }
-#else
   memset( callbacksInt, 0, sizeof( callbacksInt ) ) ;
-#endif
 
   NVIC_DisableIRQ( EIC_IRQn ) ;
   NVIC_ClearPendingIRQ( EIC_IRQn ) ;
   NVIC_SetPriority( EIC_IRQn, 0 ) ;
   NVIC_EnableIRQ( EIC_IRQn ) ;
 
-
-
   // Enable GCLK for IEC (External Interrupt Controller)
   GCLK->CLKCTRL.reg = (uint16_t) (GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID( GCM_EIC )) ;
 

cores/arduino/WVariant.h

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -16,15 +16,14 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
-#ifndef _VARIANTS_
-#define _VARIANTS_
+#pragma once
 
 #include <stdint.h>
 #include "sam.h"
 
 #ifdef __cplusplus
 extern "C" {
-#endif // __cplusplus
+#endif
 
 /* Definitions and types for pins */
 typedef enum _EAnalogChannel
@@ -227,6 +226,4 @@ extern const PinDescription g_APinDescription[] ;
 
 #ifdef __cplusplus
 } // extern "C"
-#endif // __cplusplus
-
-#endif // _VARIANTS_
+#endif

cores/arduino/abi.cpp

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2014 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public

cores/arduino/avr/dtostrf.h

 /*
   dtostrf - Emulation for dtostrf function from avr-libc
-  Copyright (c) 2014 Arduino.  All rights reserved.
-  Written by Cristian Maglie <c.maglie@bug.st>
+  Copyright (c) 2015 Arduino LLC.  All rights reserved.
+  Written by Cristian Maglie <c.maglie@arduino.cc>
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -18,6 +18,8 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
+#pragma once
+
 #ifdef __cplusplus
 extern "C" {
 #endif

cores/arduino/delay.c

+/*
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
 #include "delay.h"
 #include "Arduino.h"
 

cores/arduino/delay.h

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public

cores/arduino/hooks.c

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public

cores/arduino/itoa.c

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2014 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -20,11 +20,11 @@
 #include <string.h>
 
 #ifdef __cplusplus
-extern "C"{
-#endif // __cplusplus
+extern "C" {
+#endif
 
-#if 0
 /* reverse:  reverse string s in place */
+/*
 static void reverse( char s[] )
 {
   int i, j ;
@@ -37,22 +37,24 @@ static void reverse( char s[] )
     s[j] = c ;
   }
 }
+*/
 
 /* itoa:  convert n to characters in s */
+/*
 extern void itoa( int n, char s[] )
 {
   int i, sign ;
 
-  if ( (sign = n) < 0 )  /* record sign */
+  if ( (sign = n) < 0 )  // record sign
   {
-    n = -n;          /* make n positive */
+    n = -n;          // make n positive
   }
 
   i = 0;
   do
-  {       /* generate digits in reverse order */
-    s[i++] = n % 10 + '0';   /* get next digit */
-  } while ((n /= 10) > 0) ;     /* delete it */
+  {       // generate digits in reverse order
+    s[i++] = n % 10 + '0';   // get next digit
+  } while ((n /= 10) > 0) ;     // delete it
 
   if (sign < 0 )
   {
@@ -63,8 +65,7 @@ extern void itoa( int n, char s[] )
 
   reverse( s ) ;
 }
-
-#else
+*/
 
 extern char* itoa( int value, char *string, int radix )
 {
@@ -163,8 +164,7 @@ extern char* ultoa( unsigned long value, char *string, int radix )
 
   return string;
 }
-#endif /* 0 */
 
 #ifdef __cplusplus
 } // extern "C"
-#endif // __cplusplus
+#endif

cores/arduino/itoa.h

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -16,27 +16,20 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
-#ifndef _ITOA_
-#define _ITOA_
+#pragma once
 
 #ifdef __cplusplus
 extern "C"{
-#endif // __cplusplus
+#endif
 
-#if 0
-
-extern void itoa( int n, char s[] ) ;
-
-#else
+//extern void itoa( int n, char s[] ) ;
 
 extern char* itoa( int value, char *string, int radix ) ;
 extern char* ltoa( long value, char *string, int radix ) ;
 extern char* utoa( unsigned long value, char *string, int radix ) ;
 extern char* ultoa( unsigned long value, char *string, int radix ) ;
-#endif /* 0 */
 
 #ifdef __cplusplus
 } // extern "C"
-#endif // __cplusplus
+#endif
 
-#endif // _ITOA_

cores/arduino/startup.c

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public

cores/arduino/wiring.c

 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public