Guo Ren e0bbb53843 csky: Fixup abiv2 syscall_trace break a4 & a5
Current implementation could destory a4 & a5 when strace, so we need to get them
from pt_regs by SAVE_ALL.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
2020-05-28 00:18:36 +00:00
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