Index: newlib/libc/include/stdlib.h
===================================================================
RCS file: /cvs/src/src/newlib/libc/include/stdlib.h,v
retrieving revision 1.52
diff -u -p -r1.52 stdlib.h
--- newlib/libc/include/stdlib.h	10 Oct 2014 14:43:19 -0000	1.52
+++ newlib/libc/include/stdlib.h	8 Dec 2014 18:07:41 -0000
@@ -175,6 +175,8 @@ char *	_EXFUN(ecvtbuf,(double, int, int*
 char *	_EXFUN(fcvtbuf,(double, int, int*, int*, char *));
 char *	_EXFUN(ecvtf,(float,int,int *,int *));
 char *	_EXFUN(dtoa,(double, int, int, int *, int*, char**));
+char *  _EXFUN(itoa,(int, char *, int));
+char *  _EXFUN(utoa,(unsigned, char *, int));
 int	_EXFUN(rand_r,(unsigned *__seed));
 
 double _EXFUN(drand48,(_VOID));
Index: newlib/libc/stdlib/Makefile.am
===================================================================
RCS file: /cvs/src/src/newlib/libc/stdlib/Makefile.am,v
retrieving revision 1.31
diff -u -p -r1.31 Makefile.am
--- newlib/libc/stdlib/Makefile.am	29 May 2013 12:37:59 -0000	1.31
+++ newlib/libc/stdlib/Makefile.am	8 Dec 2014 18:07:41 -0000
@@ -31,6 +31,7 @@ GENERAL_SOURCES = \
 	gdtoa-hexnan.c	\
 	getenv.c  	\
 	getenv_r.c	\
+	itoa.c          \
 	labs.c 		\
 	ldiv.c  	\
 	ldtoa.c		\
@@ -52,6 +53,7 @@ GENERAL_SOURCES = \
 	strtod.c	\
 	strtol.c	\
 	strtoul.c	\
+	utoa.c          \
 	wcstod.c	\
 	wcstol.c	\
 	wcstoul.c	\
@@ -257,6 +259,7 @@ CHEWOUT_FILES= \
 	envlock.def	\
 	exit.def	\
 	getenv.def	\
+	itoa.def	\
 	labs.def	\
 	ldiv.def	\
 	llabs.def	\
@@ -277,6 +280,7 @@ CHEWOUT_FILES= \
 	strtoll.def 	\
 	strtoul.def 	\
 	strtoull.def 	\
+	utoa.def	\
 	wcsnrtombs.def	\
 	wcstod.def 	\
 	wcstol.def 	\
Index: newlib/libc/stdlib/itoa.c
===================================================================
RCS file: newlib/libc/stdlib/itoa.c
diff -N newlib/libc/stdlib/itoa.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ newlib/libc/stdlib/itoa.c	8 Dec 2014 18:07:41 -0000
@@ -0,0 +1,58 @@
+/*
+FUNCTION
+<<itoa>>---integer to string
+
+INDEX
+	itoa
+
+ANSI_SYNOPSIS
+	#include <stdlib.h>
+	char *itoa(int <[value]>, char *<[str]>, int <[base]>);
+
+DESCRIPTION
+<<itoa>> converts the integer [<value>] to a null-terminated string
+using the specified base, which must be between 2 and 36, inclusive.
+If <[base]> is 10, <[value]> is treated as signed and the string will be 
+prefixed with '-' if negative. For all other bases, <[value]> is treated as
+unsigned. <[str]> should be an array long enough to contain the converted
+value, which in the worst case is sizeof(int)*8+1 bytes. 
+
+RETURNS
+A pointer to the string, <[str]>, or NULL if <[base]> is invalid.
+
+PORTABILITY
+<<itoa>> is non-ANSI.
+
+No supporting OS subroutine calls are required.
+*/
+
+#include <stdlib.h>
+
+char *
+_DEFUN (itoa, (value, str, base),
+        int value _AND
+        char *str _AND 
+        int base)
+{
+  unsigned uvalue;
+  
+  /* Check base is supported. */
+  if ((base < 2) || (base > 36))
+    { 
+      str[0] = '\0';
+      return NULL;
+    }  
+    
+  /* Convert to string. Digits are in reverse order.  */
+  /* Negative numbers are only supported for decimal.
+   * Cast to unsigned to avoid overflow for maximum negative value.  */ 
+  if ((base == 10) && (value < 0))
+    {              
+      *str++ = '-';
+      uvalue = (unsigned)-value;
+    }
+  else
+    uvalue = (unsigned)value;
+  
+  return utoa (uvalue, str, base);
+}
Index: newlib/libc/stdlib/utoa.c
===================================================================
RCS file: newlib/libc/stdlib/utoa.c
diff -N newlib/libc/stdlib/utoa.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ newlib/libc/stdlib/utoa.c	8 Dec 2014 18:07:41 -0000
@@ -0,0 +1,66 @@
+/*
+FUNCTION
+<<utoa>>---unsigned integer to string
+
+INDEX
+	utoa
+
+ANSI_SYNOPSIS
+	#include <stdlib.h>
+	char *utoa(unsigned <[value]>, char *<[str]>, int <[base]>);
+
+DESCRIPTION
+<<utoa>> converts the unsigned integer [<value>] to a null-terminated string
+using the specified base, which must be between 2 and 36, inclusive.
+<[str]> should be an array long enough to contain the converted
+value, which in the worst case is sizeof(int)*8+1 bytes. 
+
+RETURNS
+A pointer to the string, <[str]>, or NULL if <[base]> is invalid.
+
+PORTABILITY
+<<utoa>> is non-ANSI.
+
+No supporting OS subroutine calls are required.
+*/
+
+#include <stdlib.h>
+
+char *
+_DEFUN (utoa, (value, str, base),
+        unsigned value _AND
+        char *str _AND 
+        int base)
+{
+  const char digits[] = "0123456789abcdefghijklmnopqrstuvwxyz";
+  int i, j;
+  unsigned remainder;
+  char c;
+  
+  /* Check base is supported. */
+  if ((base < 2) || (base > 36))
+    { 
+      str[0] = '\0';
+      return NULL;
+    }  
+    
+  /* Convert to string. Digits are in reverse order.  */
+  i = 0;
+  do 
+    {
+      remainder = value % base;
+      str[i++] = digits[remainder];
+      value = value / base;
+    } while (value != 0);  
+  str[i] = '\0'; 
+  
+  /* Reverse string.  */
+  for (j = 0, i--; j < i; j++, i--)
+    {
+      c = str[j];
+      str[j] = str[i];
+      str[i] = c; 
+    }       
+  
+  return str;
+}