Add header guards to asm macro files

Some assembly files containing macros are included like header files
into other assembly files. This will cause assembler errors if they
are included multiple times.

Add header guards to assembly macro files to avoid assembler errors.

Change-Id: Ia632e767ed7df7bf507b294982b8d730a6f8fe69

include/common/asm_macros.S

 /*
- * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -27,6 +27,8 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
+#ifndef __ASM_MACROS_S__
+#define __ASM_MACROS_S__
 
 #include <arch.h>
 
@@ -204,3 +206,5 @@ wait_for_entrypoint:
 			_mov_imm16	\_reg, (\_val), 48
 		.endif
 	.endm
+
+#endif /* __ASM_MACROS_S__ */

include/common/assert_macros.S

 /*
- * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2015, ARM Limited and Contributors. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -27,6 +27,8 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
+#ifndef __ASSERT_MACROS_S__
+#define __ASSERT_MACROS_S__
 
 	/*
 	 * Assembler macro to enable asm_assert. Use this macro wherever
@@ -47,3 +49,5 @@
 	mov	x1, __LINE__ ;\
 	b	asm_assert ;\
 300:
+
+#endif /* __ASSERT_MACROS_S__ */

include/lib/cpus/aarch64/cpu_macros.S

 /*
- * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2015, ARM Limited and Contributors. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -27,6 +27,8 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
+#ifndef __CPU_MACROS_S__
+#define __CPU_MACROS_S__
 
 #include <arch.h>
 
@@ -80,3 +82,5 @@ CPU_OPS_SIZE = .
 	.quad \_name\()_cpu_reg_dump
 #endif
 	.endm
+
+#endif /* __CPU_MACROS_S__ */

plat/fvp/include/plat_macros.S

@@ -27,6 +27,9 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
+#ifndef __PLAT_MACROS_S__
+#define __PLAT_MACROS_S__
+
 #include <cci.h>
 #include <gic_v2.h>
 #include <plat_config.h>
@@ -117,3 +120,5 @@ cci_iface_regs:
 	/* Store to the crash buf and print to console */
 	bl	str_in_crash_buf_print
 	.endm
+
+#endif /* __PLAT_MACROS_S__ */

plat/juno/include/plat_macros.S

@@ -27,6 +27,8 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
+#ifndef __PLAT_MACROS_S__
+#define __PLAT_MACROS_S__
 
 #include <cci.h>
 #include <gic_v2.h>
@@ -107,3 +109,6 @@ cci_iface_regs:
 	/* Store to the crash buf and print to console */
 	bl	str_in_crash_buf_print
 	.endm
+
+
+#endif /* __PLAT_MACROS_S__ */