libc: Introduce cdefs.h, assert.h and strlen.c
Change-Id: I76091d52571f1950111c4b1670d5fc3883607715
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/include/lib/libc/cdefs.h b/include/lib/libc/cdefs.h
new file mode 100644
index 0000000..b1d10cc
--- /dev/null
+++ b/include/lib/libc/cdefs.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CDEFS_H
+#define CDEFS_H
+
+#define __dead2 __attribute__((__noreturn__))
+#define __deprecated __attribute__((__deprecated__))
+#define __packed __attribute__((__packed__))
+#define __used __attribute__((__used__))
+#define __unused __attribute__((__unused__))
+#define __aligned(x) __attribute__((__aligned__(x)))
+#define __section(x) __attribute__((__section__(x)))
+
+#define __printflike(fmtarg, firstvararg) \
+ __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
+
+#define __weak_reference(sym, alias) \
+ __asm__(".weak alias"); \
+ __asm__(".equ alias, sym")
+
+#define __STRING(x) #x
+#define __XSTRING(x) __STRING(x)
+
+#endif /* CDEFS_H */