--- a/xen/common/vsprintf.c
+++ b/xen/common/vsprintf.c
@@ -24,108 +24,6 @@
 #include <asm/div64.h>
 #include <asm/page.h>
 
-/**
- * simple_strtoul - convert a string to an unsigned long
- * @cp: The start of the string
- * @endp: A pointer to the end of the parsed string will be placed here
- * @base: The number base to use
- */
-unsigned long simple_strtoul(
-    const char *cp, const char **endp, unsigned int base)
-{
-    unsigned long result = 0,value;
-
-    if (!base) {
-        base = 10;
-        if (*cp == '0') {
-            base = 8;
-            cp++;
-            if ((toupper(*cp) == 'X') && isxdigit(cp[1])) {
-                cp++;
-                base = 16;
-            }
-        }
-    } else if (base == 16) {
-        if (cp[0] == '0' && toupper(cp[1]) == 'X')
-            cp += 2;
-    }
-    while (isxdigit(*cp) &&
-           (value = isdigit(*cp) ? *cp-'0' : toupper(*cp)-'A'+10) < base) {
-        result = result*base + value;
-        cp++;
-    }
-    if (endp)
-        *endp = cp;
-    return result;
-}
-
-EXPORT_SYMBOL(simple_strtoul);
-
-/**
- * simple_strtol - convert a string to a signed long
- * @cp: The start of the string
- * @endp: A pointer to the end of the parsed string will be placed here
- * @base: The number base to use
- */
-long simple_strtol(const char *cp, const char **endp, unsigned int base)
-{
-    if(*cp=='-')
-        return -simple_strtoul(cp+1,endp,base);
-    return simple_strtoul(cp,endp,base);
-}
-
-EXPORT_SYMBOL(simple_strtol);
-
-/**
- * simple_strtoull - convert a string to an unsigned long long
- * @cp: The start of the string
- * @endp: A pointer to the end of the parsed string will be placed here
- * @base: The number base to use
- */
-unsigned long long simple_strtoull(
-    const char *cp, const char **endp, unsigned int base)
-{
-    unsigned long long result = 0,value;
-
-    if (!base) {
-        base = 10;
-        if (*cp == '0') {
-            base = 8;
-            cp++;
-            if ((toupper(*cp) == 'X') && isxdigit(cp[1])) {
-                cp++;
-                base = 16;
-            }
-        }
-    } else if (base == 16) {
-        if (cp[0] == '0' && toupper(cp[1]) == 'X')
-            cp += 2;
-    }
-    while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp)
-                                                               ? toupper(*cp) : *cp)-'A'+10) < base) {
-        result = result*base + value;
-        cp++;
-    }
-    if (endp)
-        *endp = cp;
-    return result;
-}
-
-EXPORT_SYMBOL(simple_strtoull);
-
-/**
- * simple_strtoll - convert a string to a signed long long
- * @cp: The start of the string
- * @endp: A pointer to the end of the parsed string will be placed here
- * @base: The number base to use
- */
-long long simple_strtoll(const char *cp,const char **endp,unsigned int base)
-{
-    if(*cp=='-')
-        return -simple_strtoull(cp+1,endp,base);
-    return simple_strtoull(cp,endp,base);
-}
-
 static int skip_atoi(const char **s)
 {
     int i=0;
--- a/xen/lib/Makefile
+++ b/xen/lib/Makefile
@@ -28,6 +28,10 @@ lib-y += strrchr.o
 lib-y += strsep.o
 lib-y += strspn.o
 lib-y += strstr.o
+lib-y += strtol.o
+lib-y += strtoll.o
+lib-y += strtoul.o
+lib-y += strtoull.o
 lib-$(CONFIG_X86) += xxhash32.o
 lib-$(CONFIG_X86) += xxhash64.o
 
--- /dev/null
+++ b/xen/lib/strtol.c
@@ -0,0 +1,28 @@
+/*
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <xen/lib.h>
+
+/**
+ * simple_strtol - convert a string to a signed long
+ * @cp: The start of the string
+ * @endp: A pointer to the end of the parsed string will be placed here
+ * @base: The number base to use
+ */
+long simple_strtol(const char *cp, const char **endp, unsigned int base)
+{
+    if ( *cp == '-' )
+        return -simple_strtoul(cp + 1, endp, base);
+    return simple_strtoul(cp, endp, base);
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--- /dev/null
+++ b/xen/lib/strtoll.c
@@ -0,0 +1,28 @@
+/*
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <xen/lib.h>
+
+/**
+ * simple_strtoll - convert a string to a signed long long
+ * @cp: The start of the string
+ * @endp: A pointer to the end of the parsed string will be placed here
+ * @base: The number base to use
+ */
+long long simple_strtoll(const char *cp, const char **endp, unsigned int base)
+{
+    if ( *cp == '-' )
+        return -simple_strtoull(cp + 1, endp, base);
+    return simple_strtoull(cp, endp, base);
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--- /dev/null
+++ b/xen/lib/strtoul.c
@@ -0,0 +1,61 @@
+/*
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <xen/ctype.h>
+#include <xen/lib.h>
+
+/**
+ * simple_strtoul - convert a string to an unsigned long
+ * @cp: The start of the string
+ * @endp: A pointer to the end of the parsed string will be placed here
+ * @base: The number base to use
+ */
+unsigned long simple_strtoul(
+    const char *cp, const char **endp, unsigned int base)
+{
+    unsigned long result = 0, value;
+
+    if ( !base )
+    {
+        base = 10;
+        if ( *cp == '0' )
+        {
+            base = 8;
+            cp++;
+            if ( (toupper(*cp) == 'X') && isxdigit(cp[1]) )
+            {
+                cp++;
+                base = 16;
+            }
+        }
+    }
+    else if ( base == 16 )
+    {
+        if ( cp[0] == '0' && toupper(cp[1]) == 'X' )
+            cp += 2;
+    }
+
+    while ( isxdigit(*cp) &&
+            (value = isdigit(*cp) ? *cp - '0'
+                                  : toupper(*cp) - 'A' + 10) < base )
+    {
+        result = result * base + value;
+        cp++;
+    }
+
+    if ( endp )
+        *endp = cp;
+
+    return result;
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--- /dev/null
+++ b/xen/lib/strtoull.c
@@ -0,0 +1,62 @@
+/*
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <xen/ctype.h>
+#include <xen/lib.h>
+
+/**
+ * simple_strtoull - convert a string to an unsigned long long
+ * @cp: The start of the string
+ * @endp: A pointer to the end of the parsed string will be placed here
+ * @base: The number base to use
+ */
+unsigned long long simple_strtoull(
+    const char *cp, const char **endp, unsigned int base)
+{
+    unsigned long long result = 0, value;
+
+    if ( !base )
+    {
+        base = 10;
+        if ( *cp == '0' )
+        {
+            base = 8;
+            cp++;
+            if ( (toupper(*cp) == 'X') && isxdigit(cp[1]) )
+            {
+                cp++;
+                base = 16;
+            }
+        }
+    }
+    else if ( base == 16 )
+    {
+        if ( cp[0] == '0' && toupper(cp[1]) == 'X' )
+            cp += 2;
+    }
+
+    while ( isxdigit(*cp) &&
+            (value = isdigit(*cp) ? *cp - '0'
+                                  : (islower(*cp) ? toupper(*cp)
+                                                  : *cp) - 'A' + 10) < base )
+    {
+        result = result * base + value;
+        cp++;
+    }
+
+    if ( endp )
+        *endp = cp;
+
+    return result;
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
