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authorwdenk <wdenk>2004-02-08 19:38:38 +0000
committerwdenk <wdenk>2004-02-08 19:38:38 +0000
commitf6e20fc6ca5a45316f94743d8b60dce4d9766bc8 (patch)
treecdea7c7227b937ff231d98e50e64b6fa447bacda /doc/README.ARM-memory-map
parentf4863a7aec41f1f78fe93eade700b15b287a5ef7 (diff)
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Patch by Anders Larsen, 09 Jan 2004:
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.
Diffstat (limited to 'doc/README.ARM-memory-map')
-rw-r--r--doc/README.ARM-memory-map10
1 files changed, 0 insertions, 10 deletions
diff --git a/doc/README.ARM-memory-map b/doc/README.ARM-memory-map
index 8905a50..e2c4e16 100644
--- a/doc/README.ARM-memory-map
+++ b/doc/README.ARM-memory-map
@@ -15,13 +15,3 @@ different parts of the (ARM) code.
Furthermore, the startup code (cpu/<arm>/start.S) internally uses
another variable (_TEXT_BASE) with the same content as _armboot_start.
I agree that this mess should be cleaned up.
-
-_armboot_end_data is the end address of the initialized data section,
-and is only used in one place (board/logodl/flash.c - the reference in
-lib_arm/board.c is purely informational).
-
-_armboot_end is the end address of the BSS and is used to determine
-the address of the VFD buffer.
-
-Eliminating those should be doable, and at least the patch already
-eliminates _armboot_real_end.