bernard.xiong b4bcc7b50d fix the return value issue in serial read. %!s(int64=16) %!d(string=hai) anos
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arm b4bcc7b50d fix the return value issue in serial read. %!s(int64=16) %!d(string=hai) anos
ia32 4e399f6e90 fix bug in rt_hw_context_swicth %!s(int64=16) %!d(string=hai) anos
SConscript 237b400982 added lowlevel_init.S for startup code %!s(int64=16) %!d(string=hai) anos