libc: Consolidate the size_t and NULL definitions

Consolidate the definition of size_t to one header per AArch, and
the definition of NULL to one header
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Change-Id: Iecfbad2cf360cfb705ce7aaa981700fd16219b82

include/lib/libc/aarch32/stdio_.h

 /*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -7,11 +7,6 @@
 #ifndef STDIO__H
 #define STDIO__H
 
-#ifndef SIZET_
-typedef unsigned int size_t;
-#define SIZET_
-#endif
-
 #ifndef SSIZET_
 typedef int ssize_t;
 #define SSIZET_

include/lib/libc/aarch32/stdlib_.h

-/*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef STDLIB__H
-#define STDLIB__H
-
-#ifndef SIZET_
-typedef unsigned int size_t;
-#define SIZET_
-#endif
-
-#endif /* STDLIB__H */

include/lib/libc/aarch32/string_.h

-/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef STRING__H
-#define STRING__H
-
-#ifndef SIZET_
-typedef unsigned int size_t;
-#define SIZET_
-#endif
-
-#endif /* STRING__H */

include/lib/libc/aarch32/time_.h

-/*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef TIME__H
-#define TIME__H
-
-#ifndef SIZET_
-typedef unsigned int size_t;
-#define SIZET_
-#endif
-
-#endif /* TIME__H */

include/lib/libc/aarch64/stdio_.h

 /*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -7,11 +7,6 @@
 #ifndef STDIO__H
 #define STDIO__H
 
-#ifndef SIZET_
-typedef unsigned long size_t;
-#define SIZET_
-#endif
-
 #ifndef SSIZET_
 typedef long ssize_t;
 #define SSIZET_

include/lib/libc/aarch64/stdlib_.h

-/*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef STDLIB__H
-#define STDLIB__H
-
-#ifndef SIZET_
-typedef unsigned long size_t;
-#define SIZET_
-#endif
-
-#endif /* STDLIB__H */

include/lib/libc/aarch64/string_.h

-/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef STRING__H
-#define STRING__H
-
-#ifndef SIZET_
-typedef unsigned long size_t;
-#define SIZET_
-#endif
-
-#endif /* STRING__H */

include/lib/libc/aarch64/time_.h

-/*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef TIME__H
-#define TIME__H
-
-#ifndef SIZET_
-typedef unsigned long size_t;
-#define SIZET_
-#endif
-
-#endif /* TIME__H */

include/lib/libc/stdio.h

@@ -4,7 +4,7 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 /*
- * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * Portions copyright (c) 2018-2019, ARM Limited and Contributors.
  * All rights reserved.
  */
 
@@ -12,12 +12,9 @@
 #define STDIO_H
 
 #include <cdefs.h>
+#include <stddef.h>
 #include <stdio_.h>
 
-#ifndef NULL
-#define NULL ((void *) 0)
-#endif
-
 #define EOF            -1
 
 int printf(const char *fmt, ...) __printflike(1, 2);

include/lib/libc/stdlib.h

@@ -11,15 +11,11 @@
 #ifndef STDLIB_H
 #define STDLIB_H
 
-#include <stdlib_.h>
+#include <stddef.h>
 
 #define EXIT_FAILURE 1
 #define EXIT_SUCCESS 0
 
-#ifndef NULL
-#define NULL ((void *) 0)
-#endif
-
 #define _ATEXIT_MAX 1
 
 extern void abort(void);

include/lib/libc/string.h

@@ -4,18 +4,14 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 /*
- * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * Portions copyright (c) 2018-2019, ARM Limited and Contributors.
  * All rights reserved.
  */
 
 #ifndef STRING_H
 #define STRING_H
 
-#include <string_.h>
-
-#ifndef NULL
-#define NULL ((void *) 0)
-#endif
+#include <stddef.h>
 
 void *memcpy(void *dst, const void *src, size_t len);
 void *memmove(void *dst, const void *src, size_t len);

include/lib/libc/time.h

@@ -11,12 +11,8 @@
 #ifndef TIME_H
 #define TIME_H
 
-#include <time_.h>
+#include <stddef.h>
 
 typedef long int time_t;
 
-#ifndef NULL
-#define NULL ((void *) 0)
-#endif
-
 #endif /* TIME_H */