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-rw-r--r--src/libstd/sys/sgx/abi/thread.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libstd/sys/sgx/abi/thread.rs b/src/libstd/sys/sgx/abi/thread.rs
index 86fe09d0035..c17fa2d0015 100644
--- a/src/libstd/sys/sgx/abi/thread.rs
+++ b/src/libstd/sys/sgx/abi/thread.rs
@@ -4,6 +4,7 @@ use fortanix_sgx_abi::Tcs;
 /// all currently running threads in the enclave, and it is guaranteed to be
 /// constant for the lifetime of the thread. More specifically for SGX, there
 /// is a one-to-one correspondence of the ID to the address of the TCS.
+#[unstable(feature = "sgx_platform", issue = "56975")]
 pub fn current() -> Tcs {
     extern "C" { fn get_tcs_addr() -> Tcs; }
     unsafe { get_tcs_addr() }