From c02fcc4a3849af4e534c8cf726562694f69b9a04 Mon Sep 17 00:00:00 2001 From: Sandrine Bailleux Date: Wed, 15 Jun 2016 13:53:50 +0100 Subject: 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 --- bl1/bl1_private.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'bl1/bl1_private.h') 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__) -- cgit