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authorChris Brandt2016-02-09 19:34:43 +0100
committerRussell King2016-02-11 16:43:14 +0100
commit02afa9a87b232bca15bc30808b9310c6388ca1a8 (patch)
treecdcc43e97ee4ed762ffd9087d3a92cb258aaab15 /arch/arm/include/asm/sections.h
parentARM: 8515/2: move .vectors and .stubs sections back into the kernel VMA (diff)
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ARM: 8518/1: Use correct symbols for XIP_KERNEL
For an XIP build, _etext does not represent the end of the binary image that needs to stay mapped into the MODULES_VADDR area. Years ago, data came before text in the memory map. However, now that the order is text/init/data, an XIP_KERNEL needs to map up to the data location in order to keep from cutting off parts of the kernel that are needed. We only map up to the beginning of data because data has already been copied, so there's no reason to keep it around anymore. A new symbol is created to make it clear what it is we are referring to. This fixes the bug where you might lose the end of your kernel area after page table setup is complete. Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/sections.h')
-rw-r--r--arch/arm/include/asm/sections.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/asm/sections.h b/arch/arm/include/asm/sections.h
new file mode 100644
index 000000000000..803bbf2b20b8
--- /dev/null
+++ b/arch/arm/include/asm/sections.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_ARM_SECTIONS_H
+#define _ASM_ARM_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+extern char _exiprom[];
+
+#endif /* _ASM_ARM_SECTIONS_H */