[U-Boot] [PATCH] arm: fix exception vectors
Luca Ellero
luca.ellero at brickedbrain.com
Mon Dec 29 16:10:53 CET 2014
After relocation, exception vectors still point to the old code (not relocated).
This patch fixes them.
Signed-off-by: Luca Ellero <luca.ellero at brickedbrain.com>
---
arch/arm/lib/relocate.S | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/arch/arm/lib/relocate.S b/arch/arm/lib/relocate.S
index 92f5314..4186344 100644
--- a/arch/arm/lib/relocate.S
+++ b/arch/arm/lib/relocate.S
@@ -76,6 +76,21 @@ copy_loop:
blo copy_loop
/*
+ * fix exception vectors
+ */
+ ldr r2, =_undefined_instruction
+ ldr r3, =_fiq
+ add r2, r2, r4
+ add r3, r3, r4
+fix_exceptions:
+ ldr r0, [r2]
+ add r0, r0, r4
+ str r0, [r2]
+ cmp r2,r3
+ add r2, #4
+ blo fix_exceptions
+
+ /*
* fix .rel.dyn relocations
*/
ldr r2, =__rel_dyn_start /* r2 <- SRC &__rel_dyn_start */
--
1.7.10.4
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