Standardise header guards across codebase

All identifiers, regardless of use, that start with two underscores are
reserved. This means they can't be used in header guards.

The style that this project is now to use the full name of the file in
capital letters followed by 'H'. For example, for a file called
"uart_example.h", the header guard is UART_EXAMPLE_H.

The exceptions are files that are imported from other projects:

- CryptoCell driver
- dt-bindings folders
- zlib headers

Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

include/lib/cpus/aarch64/cortex_a73.h

@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __CORTEX_A73_H__
-#define __CORTEX_A73_H__
+#ifndef CORTEX_A73_H
+#define CORTEX_A73_H
 
 /* Cortex-A73 midr for revision 0 */
 #define CORTEX_A73_MIDR	0x410FD090
@@ -29,4 +29,4 @@
 
 #define CORTEX_A73_IMP_DEF_REG1_DISABLE_LOAD_PASS_STORE	(1 << 3)
 
-#endif /* __CORTEX_A73_H__ */
+#endif /* CORTEX_A73_H */

include/lib/cpus/aarch64/cortex_a76.h

@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __CORTEX_A76_H__
-#define __CORTEX_A76_H__
+#ifndef CORTEX_A76_H
+#define CORTEX_A76_H
 
 /* Cortex-A76 MIDR for revision 0 */
 #define CORTEX_A76_MIDR		0x410fd0b0
@@ -26,4 +26,4 @@
 /* Definitions of register field mask in CORTEX_A76_CPUPWRCTLR_EL1 */
 #define CORTEX_A76_CORE_PWRDN_EN_MASK	0x1
 
-#endif /* __CORTEX_A76_H__ */
+#endif /* CORTEX_A76_H */

include/lib/cpus/aarch64/cortex_deimos.h

@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __CORTEX_DEIMOS_H__
-#define __CORTEX_DEIMOS_H__
+#ifndef CORTEX_DEIMOS_H
+#define CORTEX_DEIMOS_H
 
 #define CORTEX_DEIMOS_MIDR					U(0x410FD0D0)
 
@@ -20,4 +20,4 @@
 #define CORTEX_DEIMOS_CPUPWRCTLR_EL1				S3_0_C15_C2_7
 #define CORTEX_DEIMOS_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		(U(1) << 0)
 
-#endif /* __CORTEX_DEIMOS_H__ */
+#endif /* CORTEX_DEIMOS_H */

include/lib/cpus/aarch64/cortex_helios.h

@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __CORTEX_HELIOS_H__
-#define __CORTEX_HELIOS_H__
+#ifndef CORTEX_HELIOS_H
+#define CORTEX_HELIOS_H
 
 #define CORTEX_HELIOS_MIDR		U(0x410FD060)
 
@@ -26,4 +26,4 @@
 #define CORTEX_HELIOS_CPUPWRCTLR_EL1				S3_0_C15_C2_7
 #define CORTEX_HELIOS_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		(U(1) << 0)
 
-#endif /* __CORTEX_HELIOS_H__ */
+#endif /* CORTEX_HELIOS_H */

include/lib/cpus/aarch64/cpu_macros.S

@@ -3,8 +3,8 @@
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
-#ifndef __CPU_MACROS_S__
-#define __CPU_MACROS_S__
+#ifndef CPU_MACROS_S
+#define CPU_MACROS_S
 
 #include <arch.h>
 #include <errata_report.h>
@@ -255,8 +255,6 @@
 	.endm
 #endif
 
-#endif /* __CPU_MACROS_S__ */
-
 	/*
 	 * This macro is used on some CPUs to detect if they are vulnerable
 	 * to CVE-2017-5715.
@@ -285,3 +283,5 @@
 	cmp	w0, #((\_cpu_midr >> MIDR_PN_SHIFT) & MIDR_PN_MASK)
 	b.eq	\_label
 	.endm
+
+#endif /* CPU_MACROS_S */

include/lib/cpus/aarch64/denver.h

@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __DENVER_H__
-#define __DENVER_H__
+#ifndef DENVER_H
+#define DENVER_H
 
 /* MIDR values for Denver */
 #define DENVER_MIDR_PN0			U(0x4E0F0000)
@@ -39,6 +39,6 @@
 /* Disable Dynamic Code Optimisation */
 void denver_disable_dco(void);
 
-#endif
+#endif /* __ASSEMBLY__ */
 
-#endif /* __DENVER_H__ */
+#endif /* DENVER_H */

include/lib/el3_runtime/pubsub.h

@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __PUBSUB_H__
-#define __PUBSUB_H__
+#ifndef PUBSUB_H
+#define PUBSUB_H
 
 #define __pubsub_start_sym(event)	__pubsub_##event##_start
 #define __pubsub_end_sym(event)		__pubsub_##event##_end
@@ -84,4 +84,4 @@
 typedef void* (*pubsub_cb_t)(const void *arg);
 
 #endif	/* __LINKER__ */
-#endif	/* __PUBSUB_H__ */
+#endif /* PUBSUB_H */

include/lib/extensions/ras.h

@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef RAS_COMMON
-#define RAS_COMMON
+#ifndef RAS_H
+#define RAS_H
 
 #define ERR_HANDLER_VERSION	1U
 
@@ -196,4 +196,5 @@ int ras_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
 void ras_init(void);
 
 #endif /* __ASSEMBLY__ */
-#endif /* RAS_COMMON */
+
+#endif /* RAS_H */

include/lib/libc/aarch32/endian_.h

@@ -36,8 +36,8 @@
  * All rights reserved.
  */
 
-#ifndef AARCH32_ENDIAN_H
-#define AARCH32_ENDIAN_H
+#ifndef ENDIAN__H
+#define ENDIAN__H
 
 #include <stdint.h>
 
@@ -143,4 +143,4 @@ __bswap16_var(uint16_t v)
 #define __bswap32(x)	__bswap32_var(x)
 
 #endif /* __OPTIMIZE__ */
-#endif /* AARCH32_ENDIAN_H */
+#endif /* ENDIAN__H */

include/lib/libc/aarch32/stddef_.h

@@ -4,6 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#ifndef STDDEF__H
+#define STDDEF__H
+
 #ifndef SIZET_
 typedef unsigned int size_t;
 #define SIZET_
@@ -13,3 +16,5 @@ typedef unsigned int size_t;
 typedef long ptrdiff_t;
 #define _PTRDIFF_T
 #endif
+
+#endif /* STDDEF__H */

include/lib/libc/aarch32/stdio_.h

@@ -4,6 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#ifndef STDIO__H
+#define STDIO__H
+
 #ifndef SIZET_
 typedef unsigned int size_t;
 #define SIZET_
@@ -13,3 +16,5 @@ typedef unsigned int size_t;
 typedef int ssize_t;
 #define SSIZET_
 #endif
+
+#endif /* STDIO__H */

include/lib/libc/aarch32/stdlib_.h

@@ -4,6 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#ifndef STDLIB__H
+#define STDLIB__H
+
 #ifndef SIZET_
 typedef unsigned int size_t;
 #define SIZET_
@@ -11,3 +14,5 @@ typedef unsigned int size_t;
 
 #define EXIT_FAILURE 1
 #define EXIT_SUCCESS 0
+
+#endif /* STDLIB__H */

include/lib/libc/aarch32/string_.h

@@ -4,7 +4,12 @@
  * 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

@@ -4,9 +4,14 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#ifndef TIME__H
+#define TIME__H
+
 #ifndef SIZET_
 typedef unsigned int size_t;
 #define SIZET_
 #endif
 
 typedef long int time_t;
+
+#endif /* TIME__H */

include/lib/libc/aarch64/endian_.h

@@ -36,8 +36,8 @@
  * All rights reserved.
  */
 
-#ifndef AARCH64_ENDIAN_H
-#define AARCH64_ENDIAN_H
+#ifndef ENDIAN__H
+#define ENDIAN__H
 
 #include <stdint.h>
 
@@ -125,4 +125,4 @@ __bswap16_var(uint16_t v)
 #define	__bswap32(x)	__bswap32_var(x)
 
 #endif /* __OPTIMIZE__ */
-#endif /* AARCH64_ENDIAN_H */
+#endif /* ENDIAN__H */

include/lib/libc/aarch64/stddef_.h

@@ -4,6 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#ifndef STDDEF__H
+#define STDDEF__H
+
 #ifndef SIZET_
 typedef unsigned long size_t;
 #define SIZET_
@@ -13,3 +16,5 @@ typedef unsigned long size_t;
 typedef long ptrdiff_t;
 #define _PTRDIFF_T
 #endif
+
+#endif /* STDDEF__H */

include/lib/libc/aarch64/stdio_.h

@@ -4,6 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#ifndef STDIO__H
+#define STDIO__H
+
 #ifndef SIZET_
 typedef unsigned long size_t;
 #define SIZET_
@@ -13,3 +16,5 @@ typedef unsigned long size_t;
 typedef long ssize_t;
 #define SSIZET_
 #endif
+
+#endif /* STDIO__H */

include/lib/libc/aarch64/stdlib_.h

@@ -4,6 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#ifndef STDLIB__H
+#define STDLIB__H
+
 #ifndef SIZET_
 typedef unsigned long size_t;
 #define SIZET_
@@ -11,3 +14,5 @@ typedef unsigned long size_t;
 
 #define EXIT_FAILURE 1
 #define EXIT_SUCCESS 0
+
+#endif /* STDLIB__H */

include/lib/libc/aarch64/string_.h

@@ -4,7 +4,12 @@
  * 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

@@ -4,9 +4,14 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#ifndef TIME__H
+#define TIME__H
+
 #ifndef SIZET_
 typedef unsigned long size_t;
 #define SIZET_
 #endif
 
 typedef long int time_t;
+
+#endif /* TIME__H */