Clean usage of void pointers to access symbols
Void pointers have been used to access linker symbols, by declaring an
extern pointer, then taking the address of it. This limits symbols
values to aligned pointer values. To remove this restriction an
IMPORT_SYM macro has been introduced, which declares it as a char
pointer and casts it to the required type.
Change-Id: I89877fc3b13ed311817bb8ba79d4872b89bfd3b0
Signed-off-by: Joel Hutton <Joel.Hutton@Arm.com>
diff --git a/include/plat/common/common_def.h b/include/plat/common/common_def.h
index a841c3d..84923b9 100644
--- a/include/plat/common/common_def.h
+++ b/include/plat/common/common_def.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -74,33 +74,13 @@
* page of it with the right memory attributes.
*/
#if SEPARATE_CODE_AND_RODATA
-#define BL_CODE_BASE (unsigned long)(&__TEXT_START__)
-#define BL_CODE_END (unsigned long)(&__TEXT_END__)
-#define BL_RO_DATA_BASE (unsigned long)(&__RODATA_START__)
-#define BL_RO_DATA_END (unsigned long)(&__RODATA_END__)
#define BL1_CODE_END BL_CODE_END
-#define BL1_RO_DATA_BASE (unsigned long)(&__RODATA_START__)
+#define BL1_RO_DATA_BASE BL_RO_DATA_BASE
#define BL1_RO_DATA_END round_up(BL1_ROM_END, PAGE_SIZE)
#else
-#define BL_CODE_BASE (unsigned long)(&__RO_START__)
-#define BL_CODE_END (unsigned long)(&__RO_END__)
#define BL_RO_DATA_BASE 0
#define BL_RO_DATA_END 0
-
#define BL1_CODE_END round_up(BL1_ROM_END, PAGE_SIZE)
-#define BL1_RO_DATA_BASE 0
-#define BL1_RO_DATA_END 0
#endif /* SEPARATE_CODE_AND_RODATA */
-
-/*
- * The next 2 constants identify the extents of the coherent memory region.
- * These addresses are used by the MMU setup code and therefore they must be
- * page-aligned. It is the responsibility of the linker script to ensure that
- * __COHERENT_RAM_START__ and __COHERENT_RAM_END__ linker symbols refer to
- * page-aligned addresses.
- */
-#define BL_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__)
-#define BL_COHERENT_RAM_END (unsigned long)(&__COHERENT_RAM_END__)
-
#endif /* __COMMON_DEF_H__ */