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authorSandrine Bailleux <sandrine.bailleux@arm.com>2016-06-15 13:53:50 +0100
committerSandrine Bailleux <sandrine.bailleux@arm.com>2016-07-08 14:37:11 +0100
commitc02fcc4a3849af4e534c8cf726562694f69b9a04 (patch)
tree7e1bc2e134ea9173aec2a94b926e608fb5c6436d /bl1/bl1_private.h
parentb9161469fa95d290ba448d65e1d886ec1ff091e5 (diff)
BL1: Add linker symbol identifying end of ROM content
This patch adds a new linker symbol in BL1's linker script named '__BL1_ROM_END__', which marks the end of BL1's ROM content. This covers BL1's code, read-only data and read-write data to relocate in Trusted SRAM. The address of this new linker symbol is exported to C code through the 'BL1_ROM_END' macro. The section related to linker symbols in the Firmware Design guide has been updated and improved. Change-Id: I5c442ff497c78d865ffba1d7d044511c134e11c7
Diffstat (limited to 'bl1/bl1_private.h')
-rw-r--r--bl1/bl1_private.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/bl1/bl1_private.h b/bl1/bl1_private.h
index 283bbb97..79dde738 100644
--- a/bl1/bl1_private.h
+++ b/bl1/bl1_private.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2016, 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:
@@ -35,8 +35,11 @@
/*******************************************************************************
* Declarations of linker defined symbols which will tell us where BL1 lives
- * in Trusted RAM
+ * in Trusted ROM and RAM
******************************************************************************/
+extern uint64_t __BL1_ROM_END__;
+#define BL1_ROM_END (uint64_t)(&__BL1_ROM_END__)
+
extern uint64_t __BL1_RAM_START__;
extern uint64_t __BL1_RAM_END__;
#define BL1_RAM_BASE (uint64_t)(&__BL1_RAM_START__)