bodzhang

lthread _switch() only save/restore general purpose registers

2

lthread [_switch()](https://github.com/lsds/sgx-lkl/blob/12fd34de68b88eefd16d27c9f07f7bcd89d89e65/src/sched/lthread.c#L103) does not save/restore FP, SSE or other CPU context. If the multiple lthreads running use FP, SSE or other advanced feature set instructions, the context switch between lthreads...

File descriptor of stdio does not support fcntl(F_GETFL/F_SETFL) or ioctl(TCGETS/TCSETS)

1

Python runtime invokes ioctl(TCGETS) on open fds. Recent version of NodeJS calls fcntl(F_GETFL/F_SETFL) and ioctl(TCGETS/TCSETS) on stdio fds during initialization, and treat failures as fatal. Using the following NodeJs sample,...