Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/qemu/roms/SLOF/llfw/clib/iolib.c b/qemu/roms/SLOF/llfw/clib/iolib.c
new file mode 100644
index 000000000..7f14b512d
--- /dev/null
+++ b/qemu/roms/SLOF/llfw/clib/iolib.c
@@ -0,0 +1,47 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <stdint.h>
+#include <stddef.h>
+#include <unistd.h>
+#include "iolib.h"
+
+void uart_send_byte(unsigned char b)
+{
+	asm volatile ("":::"3","4","5","6","7");
+	io_putchar(b);
+}
+
+/**
+ * Standard write function for the libc.
+ *
+ * @param fd	file descriptor (should always be 1 or 2)
+ * @param buf	pointer to the array with the output characters
+ * @param count	number of bytes to be written
+ * @return	the number of bytes that have been written successfully
+ */
+ssize_t write(int fd, const void *buf, size_t count)
+{
+	size_t i;
+	char *ptr = (char *)buf;
+
+	if (fd != 1 && fd != 2)
+		return 0;
+
+	for (i = 0; i < count; i++) {
+		if (*ptr == '\n')
+			uart_send_byte('\r');
+		uart_send_byte(*ptr++);
+	}
+
+	return i;
+}