1 files changed, 51 insertions, 0 deletions

diff --git a/arch/avr32/kernel/sys_avr32.c b/arch/avr32/kernel/sys_avr32.c
new file mode 100644
index 000000000000..6ec5693da448
--- /dev/null
+++ b/arch/avr32/kernel/sys_avr32.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/mm.h>
+#include <linux/unistd.h>
+
+#include <asm/mman.h>
+#include <asm/uaccess.h>
+
+asmlinkage int sys_pipe(unsigned long __user *filedes)
+{
+        int fd[2];
+        int error;
+
+        error = do_pipe(fd);
+        if (!error) {
+                if (copy_to_user(filedes, fd, sizeof(fd)))
+                        error = -EFAULT;
+        }
+        return error;
+}
+
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+                          unsigned long prot, unsigned long flags,
+                          unsigned long fd, off_t offset)
+{
+        int error = -EBADF;
+        struct file *file = NULL;
+
+        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+        if (!(flags & MAP_ANONYMOUS)) {
+                file = fget(fd);
+                if (!file)
+                        return error;
+        }
+
+        down_write(&current->mm->mmap_sem);
+        error = do_mmap_pgoff(file, addr, len, prot, flags, offset);
+        up_write(&current->mm->mmap_sem);
+
+        if (file)
+                fput(file);
+        return error;
+}