| commit | b70cd406d7fe9976962d621d8c60d324eb47d284 | [log] [tgz] |
|---|---|---|
| author | Vladimir Murzin <vladimir.murzin@arm.com> | Mon Apr 24 10:41:53 2017 +0100 |
| committer | Russell King <rmk+kernel@armlinux.org.uk> | Wed Apr 26 10:59:36 2017 +0100 |
| tree | 98aa98df6b8f749605d72cc6f74ace87d830152b | |
| parent | 6f05d0761af612e04572ba4d65b4c0274a88444f [diff] |
ARM: 8671/1: V7M: Preserve registers across switch from Thread to Handler mode According to ARMv7 ARM, when exception is taken content of r0-r3, r12 is unknown (see ExceptionTaken() pseudocode). Even though existent implementations keep these register unchanged, preserve them to be in line with architecture. Reported-by: Dobromir Stefanov <dobromir.stefanov@arm.com> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>