diff --git a/contrib/sdk/sources/newlib/libc/include/kos32sys.h b/contrib/sdk/sources/newlib/libc/include/kos32sys.h
index cfaeda819a..e669898549 100644
--- a/contrib/sdk/sources/newlib/libc/include/kos32sys.h
+++ b/contrib/sdk/sources/newlib/libc/include/kos32sys.h
@@ -193,6 +193,17 @@ uint32_t get_tick_count(void)
     return val;
 };
 
+static inline
+uint64_t get_ns_count(void)
+{
+    uint64_t val;
+    __asm__ __volatile__(
+    "int $0x40"
+    :"=A"(val)
+    :"a"(26), "b"(10));
+    return val;
+};
+
 static inline
 oskey_t get_key(void)
 {
diff --git a/contrib/sdk/sources/newlib/libc/include/stdio.h b/contrib/sdk/sources/newlib/libc/include/stdio.h
index c8125e9fa3..9dd8ba75f3 100644
--- a/contrib/sdk/sources/newlib/libc/include/stdio.h
+++ b/contrib/sdk/sources/newlib/libc/include/stdio.h
@@ -102,7 +102,7 @@ typedef _fpos64_t fpos64_t;
 #ifdef __BUFSIZ__
 #define	BUFSIZ		__BUFSIZ__
 #else
-#define	BUFSIZ		1024
+#define BUFSIZ      4096
 #endif
 
 #ifdef __FOPEN_MAX__
diff --git a/contrib/sdk/sources/newlib/libc/include/sys/kos_io.h b/contrib/sdk/sources/newlib/libc/include/sys/kos_io.h
index 21c75f74a2..6ece4a1bb0 100644
--- a/contrib/sdk/sources/newlib/libc/include/sys/kos_io.h
+++ b/contrib/sdk/sources/newlib/libc/include/sys/kos_io.h
@@ -2,6 +2,10 @@
 #ifndef __KOS_IO_H__
 #define __KOS_IO_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #pragma pack(push, 1)
 typedef struct
 {
@@ -65,19 +69,8 @@ int read_file(const char *path, void *buff,
 int write_file(const char *path,const void *buff,
                size_t offset, size_t count, size_t *writes);
 int set_file_size(const char *path, unsigned size);
-void *load_file(const char *path, size_t *len);
 void unpack(void* packed_data, void* unpacked_data) __attribute__((stdcall)) ;
 
-static inline int user_free(void *mem)
-{
-    int  val;
-    __asm__ __volatile__(
-    "int $0x40"
-    :"=a"(val)
-    :"a"(68),"b"(12),"c"(mem));
-    return val;
-}
-
 static inline void set_cwd(const char* cwd)
 {
     __asm__ __volatile__(
@@ -85,4 +78,7 @@ static inline void set_cwd(const char* cwd)
     ::"a"(30),"b"(1),"c"(cwd));
 };
 
+#ifdef __cplusplus
+}
+#endif
 #endif