Index: libc/Makefile
===================================================================
--- libc/Makefile	(revision 18acad554ff6cb14b78fd376e87bd4ce4724c792)
+++ libc/Makefile	(revision 79522a7cc9403eed9cdfa19ba9daf70b58a097b5)
@@ -42,4 +42,5 @@
 GENERIC_SOURCES = \
 	generic/libc.c \
+	generic/mmap.c \
 	generic/io/io.c \
 	generic/io/print.c
Index: libc/generic/mmap.c
===================================================================
--- libc/generic/mmap.c	(revision 79522a7cc9403eed9cdfa19ba9daf70b58a097b5)
+++ libc/generic/mmap.c	(revision 79522a7cc9403eed9cdfa19ba9daf70b58a097b5)
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2006 Jakub Jermar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */ 
+
+#include <libc.h>
+#include <unistd.h>
+
+void *mremap(void *address, size_t size, unsigned long flags)
+{
+	return (void *) __SYSCALL3(SYS_MREMAP, (sysarg_t ) address, (sysarg_t) size, (sysarg_t) flags);
+}
Index: libc/include/unistd.h
===================================================================
--- libc/include/unistd.h	(revision 18acad554ff6cb14b78fd376e87bd4ce4724c792)
+++ libc/include/unistd.h	(revision 79522a7cc9403eed9cdfa19ba9daf70b58a097b5)
@@ -36,4 +36,5 @@
 extern ssize_t write(int fd, const void * buf, size_t count);
 extern void _exit(int status);
+void * mremap(void *address, size_t size, unsigned long flags);
 
 #endif