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arch: arc: fake exception should set not clrear AE bit

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To make a fake exception, we should set not clear AE bit

Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
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Wayne Ren 2020-03-02 13:56:36 +08:00 • committed by Anas Nashif
commit 9544350832
1 changed files with 1 additions and 1 deletions
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arch/arc/core/userspace.S
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@ -149,7 +149,7 @@ _arc_go_to_user_space:
/* fake exception return */ /* fake exception return */
lr r0, [_ARC_V2_STATUS32] lr r0, [_ARC_V2_STATUS32]
bclr r0, r0, _ARC_V2_STATUS32_AE_BIT bset r0, r0, _ARC_V2_STATUS32_AE_BIT
kflag r0 kflag r0
/* when exception returns from kernel to user, sp and _ARC_V2_USER_SP /* when exception returns from kernel to user, sp and _ARC_V2_USER_SP