1 files changed, 33 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/avr32/mmap.c b/libc/sysdeps/linux/avr32/mmap.c
new file mode 100644
index 000000000..80310a45f
--- /dev/null
+++ b/libc/sysdeps/linux/avr32/mmap.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License.  See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+
+libc_hidden_proto(mmap)
+
+static _syscall6(__ptr_t, mmap2, __ptr_t, addr, size_t, len, int, prot,
+                int, flags, int, fd, __off_t, pgoff);
+
+__ptr_t mmap(__ptr_t addr, size_t len, int prot, int flags, int fd, __off_t offset)
+{
+       unsigned long page_size = sysconf(_SC_PAGESIZE);
+       unsigned long pgoff;
+
+       if (offset & (page_size - 1)) {
+               __set_errno(EINVAL);
+               return MAP_FAILED;
+       }
+
+       pgoff = (unsigned long)offset >> (31 - __builtin_clz(page_size));
+
+       return mmap2(addr, len, prot, flags, fd, pgoff);
+}
+libc_hidden_def(mmap)