OrionLibC

diff --git a/sys/mmap.c b/sys/mmap.c
new file mode 100644
index 0000000..b80a2aa
--- /dev/null
+++ b/sys/mmap.c
@@ -0,0 +1,16 @@
+#include <stdint.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+#include <errno.h>
+
+void *
+mmap(void *addr, size_t len, int prot, int flags, int fildes, off_t off)
+{
+	int ret;
+	asm volatile("int $0x80" : "=a" (ret) : "0" (SYSCALL_MMAP),
+	             "c" (6), "S" (&addr));
+	if (ret >= 0)
+		return (void *) ret;
+	errno = -ret;
+	return MAP_FAILED;
+}