Create a library file for libc

TF Makefile was linking all the objects files generated for the
c library instead of creating a static library that could be
used in the linking stage.

Change-Id: I721daea097e9b13cbb42c9f8eaa2af8fea0799cf
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/lib/libc/putchar.c b/lib/libc/putchar.c
new file mode 100644
index 00000000..8265667b
--- /dev/null
+++ b/lib/libc/putchar.c
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdio.h>
+#include <console.h>
+
+/* Putchar() should either return the character printed or EOF in case of error.
+ * Our current console_putc() function assumes success and returns the
+ * character. Write all other printing functions in terms of putchar(), if
+ * possible, so they all benefit when this is improved.
+ */
+int putchar(int c)
+{
+	int res;
+	if (console_putc((unsigned char)c) >= 0)
+		res = c;
+	else
+		res = EOF;
+
+	return res;
+}