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由 Victor Kamensky 提交于
__und_usr_thumb function deals with thumb2 opcodes. In case of BE image, it needs to byteswap half word thumb2 encoded instructions before further processing them. Without this fix BE image user-land thread executing first VFP instruction encoded in thumb2 fails with SIGILL, because kernel does not recognize instruction and does not enable VFP. Reported-by: NCorey Melton <comelton@cisco.com> Signed-off-by: NVictor Kamensky <victor.kamensky@linaro.org> Tested-by: NStephen Boyd <sboyd@codeaurora.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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