[rtems commit] arm: Fix default exception handler
Sebastian Huber
sebh at rtems.org
Tue Sep 3 08:34:27 UTC 2019
Module: rtems
Branch: master
Commit: 0b3dcb3b37eff6a8bbf07d0e29dfaa85c3a51bff
Changeset: http://git.rtems.org/rtems/commit/?id=0b3dcb3b37eff6a8bbf07d0e29dfaa85c3a51bff
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Tue Sep 3 10:11:21 2019 +0200
arm: Fix default exception handler
Keep the stack pointer properly 8-byte aligned.
---
cpukit/score/cpu/arm/armv4-exception-default.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/cpukit/score/cpu/arm/armv4-exception-default.S b/cpukit/score/cpu/arm/armv4-exception-default.S
index efa8d13..848ffe4 100644
--- a/cpukit/score/cpu/arm/armv4-exception-default.S
+++ b/cpukit/score/cpu/arm/armv4-exception-default.S
@@ -137,8 +137,8 @@ save_more_context:
beq 1f
/* Save VFP context */
- sub sp, #(ARM_VFP_CONTEXT_SIZE + 4)
- add r4, sp, #4
+ sub sp, #(ARM_VFP_CONTEXT_SIZE + 8)
+ add r4, sp, #8
bic r4, r4, #7
str r4, [r3]
vmrs r2, FPSCR
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