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ARM memory layout fixes: the abort-stack is now set up in the correct RAM area, and the BSS is zeroed out as it should be. Furthermore, the magic variables 'armboot_end' and 'armboot_end_data' of the linker scripts are replaced by '__bss_start' and '_end', resp., which is a further step to eliminate unnecessary differences between the implementation of the CPU architectures.
18 lines
760 B
Plaintext
18 lines
760 B
Plaintext
Subject: Re: [PATCH][CFT] bring ARM memory layout in line with the documented behaviour
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From: "Anders Larsen" <alarsen@rea.de>
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Date: Thu, 18 Sep 2003 14:15:21 +0200
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To: Wolfgang Denk <wd@denx.de>
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...
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>I still see references to _armboot_start, _armboot_end_data, and
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>_armboot_end - which role do these play now? Can we get rid of them?
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>
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>How are they (should they be) set in your memory map above?
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_armboot_start contains the value of TEXT_BASE (0xA07E0000); it seems
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TEXT_BASE and _armboot_start are both used for the same purpose in
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different parts of the (ARM) code.
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Furthermore, the startup code (cpu/<arm>/start.S) internally uses
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another variable (_TEXT_BASE) with the same content as _armboot_start.
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I agree that this mess should be cleaned up.
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