1. Five new ioctl commands of /dev/sgx are added for occlum
applications to securely get and verify DCAP quote;
2. Not all the functions of the intel DCAP package are open to
developers to simplify the DCAP usage;
3. The test may only run on the platform with DCAP driver installed;
4. A macro OCCLUM_DISABLE_DCAP is used to separate the DCAP code from
the other code.
5. Skip DCAP test when DCAP driver is not detected or in simulation mode
1. Implement type-safe functions;
2. Improve the correctness of nearly all the functions;
3. Improve the readability by introducing Listener and Endpoint for StreamUnix;
4. Substitue RingBuf with Channel in Unix socket.
This bugfix ensures that when an object of Producer/Consumer for
channels is dropped, its shutdown method is called automatically. This ensures
that the peer of a Producer/Consumer gets notified and won't wait indefinitely.
The current Tcmalloc has memory leak issue. So change it as optional. By
default, dlmalloc is used. Enable tcmalloc with below command:
make TCMALLOC=Y
Due to the incomplete implementation of SGX simulation mode, Occlum gRPC demo keeps failing in CI.
Since this is also tested in SGX hardware mode, just ignore the result in simulation mode for now.
This commit can be reverted once the SGX simulation mode is flawless.
Usually, files are unregistered from an epoll file via the EPOLL_CTL_DEL command
explicitly. But for the sake of users' convenience, Linux supports
unregistering a file automatically from the epoll files that monitor the file
when the file is closed. This commit adds this capability.
When using the optimized string lib in Occlum, the memset function would
use xmm0 register, as the result, the FP area initialization code would
modify the FP area before saving it. So just ignor the FP area
initialization code.
